Counterweight of cross-country forklift and cross-country forklift

Abstract

The counter weight of the cross-country forklift comprises a main body housing, two extension housings and a supporting frame assembly, the rear side of a cab of the cross-country forklift is covered with the main body housing, and the main body housing comprises a housing front section and a housing rear section which are sequentially arranged from front to back; the cover shell front section extends to the position between a cab and rear wheels and is connected with a rear stand column of the cab, the cover shell rear section is located between the two rear wheels of the cross-country forklift, the two extension cover shells are arranged on the two opposite sides of the cover shell rear section respectively, and the two extension cover shells shield the upper sides of the two rear wheels in a one-to-one correspondence mode respectively. The supporting frame assembly comprises a first supporting rod and a second supporting rod, the two supporting rods are sequentially arranged in the width direction of a forklift frame of the cross-country forklift in a spaced mode and obliquely extend from the forklift frame to the opposite sides, the lower ends of the two supporting rods are both connected with the forklift frame, and the upper ends of the two supporting rods are both connected with the cover shell rear section. According to the counter weight of the cross-country forklift, the running stability of the cross-country forklift can be improved.

Description

Technical Field

[0001] This invention belongs to the field of forklift technology, specifically relating to an off-road forklift counterweight and an off-road forklift. Background Technology

[0002] Forklifts are a type of material handling equipment widely used in the industrial field. They use forks to lift and move goods, playing an important role in warehousing, logistics, factory workshops and other scenarios. Traditional forklifts are designed for indoor or urban road environments and have little consideration for adaptability to complex terrains, making them unsuitable for outdoor unpaved road operations such as construction sites, mines, and farms.

[0003] Off-road forklifts are special forklifts with high passability and off-road performance. They are based on traditional forklifts but have improved tires, chassis and power systems to adapt to rough terrain. However, the counterweight of existing off-road forklifts still uses the counterweight structure of traditional forklifts, which results in a high center of gravity. This affects the stability of the forklift when driving on slopes and potholes, making it difficult to meet the dual requirements of vehicle handling flexibility and driving safety in off-road scenarios. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies, the present invention provides a counterweight for an off-road forklift and an off-road forklift, aiming to solve the technical problem that the counterweight structure of existing off-road forklifts is not suitable for operation on unpaved roads.

[0005] To achieve the above objectives, the first aspect of the present invention provides a counterweight for an off-road forklift, wherein the counterweight comprises: The main body cover is installed on the rear side of the cab of the off-road forklift and includes a front section and a rear section of the cover arranged sequentially from front to back. The front section of the cover is located between the cab and the rear wheel and is placed on the first support surface formed by the side plate of the frame. The front section of the cover has a front end face that abuts against the rear pillar of the cab. The rear section of the cover is located between the two rear wheels of the off-road forklift and is placed on the second support surface formed by the frame. Two extended covers are located on opposite sides of the rear section of the cover, and the two extended covers respectively cover the upper side of the two rear wheels. The support frame assembly includes a first support rod and a second support rod. The first support rod and the second support rod are arranged sequentially at intervals along the width direction of the frame of the off-road forklift and extend obliquely from the frame toward opposite sides of each other. The lower ends of the first support rod and the second support rod are both connected to the frame, and the upper ends are both connected to the rear section of the cover.

[0006] In this embodiment of the invention, the rear section of the cover includes a top plate side and two side plate sides. The first support rod and the second support rod each have a first vertical edge formed on the outward side. The first vertical edges of the first support rod and the second support rod respectively abut against the inner walls of the two side plate sides.

[0007] In this embodiment of the invention, the periphery of the first support rod and the second support rod each includes a first vertical side, a second vertical side, a lower inclined side, and an upper inclined side. The first vertical side is located on the first side of the support rod facing outward and is connected to the rear section of the cover. The second vertical side is located on the side of the corresponding support rod facing inward and is connected to the frame. The upper inclined side and the lower inclined side are respectively located on the upper and lower sides of the corresponding support rod and are both inclined outward in the direction from bottom to top. The angle between the upper inclined side and the horizontal direction is set to be greater than the angle between the lower inclined side and the horizontal direction.

[0008] In this embodiment of the invention, the first support rod and the second support rod have a connecting surface on the side facing away from the cab. The rear section of the cover also includes a tail plate side, which extends downward from the top plate side by bending. The tail plate side has a third mounting part that protrudes inward and abuts against the connecting surface. The third mounting part is detached from the connecting surface by fasteners.

[0009] In this embodiment of the invention, the rear section of the cover also includes a tail plate side, which extends downward from the top plate side by bending. The tail plate side has a rearward-opening heat dissipation vent, which is positioned directly opposite the ventilation area between the first support rod and the second support rod. The heat dissipation vent is gradually expanded in the direction from bottom to top.

[0010] In this embodiment of the invention, a towing window is also provided on the side of the tail plate. The towing window is spaced below the heat dissipation vent. A first pin hole is provided between the towing window and the heat dissipation vent. A second pin hole is provided on the bottom surface of the towing window. The counterweight of the off-road forklift also includes a towing pin, which passes through the first pin hole and the second pin hole.

[0011] In this embodiment of the invention, the upper end of the traction pin is placed inside the heat dissipation vent and forms a pull ring. The off-road forklift counterweight also includes a protective net located at the heat dissipation vent, and the top of the protective net has a notch that allows the traction pin to pass laterally.

[0012] In this embodiment of the invention, the counterweight of the off-road forklift also includes a protective net at the heat dissipation vent. The protective net is arranged in a trapezoidal shape corresponding to the heat dissipation vent, and each side of the protective net is provided with a connecting piece. The connecting piece is connected to the tail plate side by bolts.

[0013] In this embodiment of the invention, the support frame assembly further includes a first support longitudinal beam, a second support longitudinal beam, a first support plate, and a second support plate. The first support longitudinal beam and the second support longitudinal beam extend from the first support rod and the second support rod to the cab, respectively. The rear section of the cover overlaps on the first support longitudinal beam and the second support longitudinal beam. The first support plate and the second support plate extend inwardly from the first support longitudinal beam and the second support longitudinal beam to the vehicle frame, respectively.

[0014] In this embodiment of the invention, a taillight frame is also provided on the rear section of the housing. The taillight frame forms a taillight mounting space and includes a taillight top plate and two taillight side plates located on both sides of the taillight top plate. The taillight top plate extends rearward from the rear section of the housing and the distance between it and the rear section of the housing gradually increases. The two taillight side plates are arranged away from each other from the taillight top plate toward the rear section of the housing.

[0015] In this embodiment of the invention, the counterweight of the off-road forklift also includes a positioning cover plate, which is disposed between the two rear pillars of the cab and extends outward toward the side away from the cab. The front section of the cover includes a first mounting part and a second mounting part, which are spaced apart to form a positioning notch for the positioning cover plate to be inserted.

[0016] To achieve the above objectives, a second aspect of the present invention provides an off-road forklift including the above-described off-road forklift counterweight.

[0017] Through the above technical solution, the off-road forklift counterweight provided in the embodiments of the present invention has the following beneficial effects: When using the aforementioned counterbalance forklift, by adding extended covers on opposite sides of the rear section of the casing, with each of the two extended covers correspondingly covering the upper side of the two rear wheels, the rear section of the counterbalance is widened and weighted without affecting the width of the vehicle body. This lowers the center of gravity of both the counterbalance and the forklift, improving the forklift's stability and handling safety. Simultaneously, the front section of the casing rests on the first support surface formed by the side plates of the frame, and the rear section rests on the second support surface formed by the frame. Furthermore, the addition of first and second support rods further strengthens the connection between the main casing and the frame. When the forklift travels on complex terrain, the support rods can distribute the lateral impact force borne by the main casing to the frame, preventing localized stress concentration and damage to the connection structure.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1This is a perspective view of the cover structure of the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 2 This is a front view of the cover structure of the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 3 This is a side view of the housing structure of the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 4 This is a perspective view of the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 5 This is a side view of the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 6 This is a side view of the support structure for the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 7 This is a rear view of the support structure for the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 8 This is a perspective view of the support structure for the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the protective netting for the counterweight of an off-road forklift according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the rear structure of the counterweight of an off-road forklift according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] The following description of the off-road forklift counterweight and off-road forklift of the present invention is with reference to the accompanying drawings.

[0023] like Figures 1 to 10 As shown, the present invention provides a counterweight for an off-road forklift, wherein the off-road forklift counterweight includes: The main body cover 100 is installed on the rear side of the cab 400 of the off-road forklift and includes a front section 110 and a rear section 120 arranged sequentially from front to back. The front section 110 is located between the cab 400 and the rear wheel 800 and is placed on the first support surface formed by the side plate 910 of the frame. The front section 110 has a front end face that abuts against the rear column 410 of the cab 400. The rear section 120 is located between the two rear wheels 800 of the off-road forklift and is placed on the second support surface formed by the frame 900. Two extended covers 200 are respectively located on opposite sides of the rear section 120 of the cover, and the two extended covers 200 respectively cover the upper side of the two rear wheels 800. The support frame assembly includes a first support rod 310 and a second support rod 320. The first support rod 310 and the second support rod 320 are arranged sequentially at intervals along the width direction of the frame 900 of the off-road forklift and extend obliquely from the frame 900 toward opposite sides. The lower ends of the first support rod 310 and the second support rod 320 are both connected to the frame 900, and the upper ends are both connected to the rear section 120 of the cover.

[0024] When using the aforementioned off-road forklift counterweight, by adding extended covers 200 on opposite sides of the rear section 120 of the cover, with each of the two extended covers 200 correspondingly covering the upper side of the two rear wheels 800, the rear section of the counterweight is widened and weighted without affecting the width of the vehicle body. This lowers the center of gravity of the counterweight and the off-road forklift, improving the driving stability and handling safety of the forklift. Simultaneously, the front section 110 of the cover rests on the first support surface formed by the side plate 910 of the frame, and the rear section 120 rests on the second support surface formed by the frame 900. Furthermore, by adding a first support rod 310 and a second support rod 320, the robustness of the connection between the main cover 100 and the frame 900 is further enhanced. When the off-road forklift travels on complex terrain, the support rods can distribute the lateral impact force borne by the main cover to the frame, preventing localized stress concentration that could damage the connection structure.

[0025] like Figure 1 and Figure 8 As shown in this embodiment of the invention, the rear section 120 of the cover includes a top plate side 121 and two side plate sides 122. The first support rod 310 and the second support rod 320 each have a first vertical edge 301 formed on their outward-facing side. The first vertical edges 301 of the first support rod 310 and the second support rod 320 respectively abut against the inner walls of the two side plate sides 122. Through the lateral abutment between the first vertical edges 301 and the side plate sides 122, lateral support can be formed on the side plate sides 122, effectively limiting the lateral displacement of the rear section 120 of the cover due to bumps or lateral forces during vehicle operation, further improving the stability of the connection structure between the main cover 100 and the support rods.

[0026] like Figure 8As shown, in this embodiment of the invention, the periphery of the first support rod 310 and the second support rod 320 both include a first vertical edge 301, a second vertical edge 302, a lower inclined edge 303, and an upper inclined edge 304. The first vertical edge 301 is located on the first side of the support rod facing outward and is connected to the rear section 120 of the cover. The second vertical edge 302 is located on the side of the corresponding support rod facing inward and is connected to the frame 900. The upper inclined edge 304 and the lower inclined edge 303 are respectively located on the upper and lower sides of the corresponding support rod and are both inclined outward in the direction from bottom to top. By tilting the support rod, the lateral impact force on the support rod can be decomposed into a component perpendicular to the hypotenuse and a component along the hypotenuse. The component along the hypotenuse can act directly on the frame 900 through the support rod. Compared with a vertically positioned support rod, this reduces the torque on the support rod and the weld between the support rod and the frame 900, reducing the possibility of cracking and fatigue damage due to long-term high stress on the support rod and the weld. This effectively extends the service life of the support rod and further ensures the connection stability and safety of the off-road forklift counterweight structure under complex working conditions.

[0027] Specifically, the angle between the upper inclined side 304 and the horizontal direction is set to be greater than the angle between the lower inclined side 303 and the horizontal direction. When the forklift encounters bumps or lateral obstacles during travel, the larger upper tilt angle can more effectively withstand lateral impact forces.

[0028] like Figure 2 , Figure 3 and Figure 8 As shown, in this embodiment of the invention, the first support rod 310 and the second support rod 320 have a connecting surface on the side facing away from the cab 400. The rear section 120 of the cover also includes a tail plate side 123, which extends downward from the top plate side 121 by bending. The tail plate side 123 has a third mounting part 124 that protrudes inward. The third mounting part 124 abuts against the connecting surface and is detachably connected to the connecting surface by fasteners. The longitudinal connection between the tail plate side 123 and the support rod can transmit the longitudinal impact force received by the main cover 100 to the frame 900 through the connecting rod, ensuring the structural stability of the off-road forklift during straight-line driving and emergency braking.

[0029] like Figure 1 and Figure 8 As shown, in this embodiment of the invention, a rearward-opening heat dissipation vent 130 is formed on the tail plate side 123. The heat dissipation vent 130 is disposed directly opposite the ventilation area 305 between the first support rod 310 and the second support rod 320, and the heat dissipation vent 130 is arranged in a gradually expanding manner from bottom to top.

[0030] Specifically, the counterweight of the off-road forklift and the frame 900 enclose an installation space for devices such as radiators. The vent 130 allows the heat generated by the radiator during operation to be quickly dissipated through the ventilation area 305, preventing heat accumulation in the installation space. Furthermore, due to the inclined arrangement of the first support rod 310 and the second support rod 320, the ventilation area 305 between them is V-shaped. Therefore, the vent 130 is designed to gradually expand the ventilation area 305, which effectively reduces airflow resistance, increases the ventilation volume per unit time, and avoids airflow turbulence within the counterweight, thus ensuring effective heat dissipation.

[0031] Specifically, an air inlet is provided on the front section 110 of the housing. The air inlet and the heat dissipation vent 130 form a through airflow channel, allowing external cold air to enter the installation space through the air inlet, flow through the radiator, carry heat, and be discharged from the heat dissipation vent 130, forming a highly efficient convection cooling system. Furthermore, a removable dust filter can be installed at the air inlet to effectively filter dust and impurities in the air, preventing them from entering the installation space and adhering to the radiator surface, thus affecting heat dissipation efficiency. This also facilitates later cleaning or replacement of the dust filter, reducing maintenance costs. In addition, the air inlet is located above the counterweight, avoiding areas where off-road forklifts easily pick up large amounts of mud and sand during operation, ensuring the cleanliness and stability of the incoming air and further guaranteeing the long-term reliable operation of the cooling system.

[0032] like Figure 1 and Figure 10 As shown in this embodiment of the invention, a towing window 140 is also provided on the tail plate side 123. The towing window 140 is spaced below the heat dissipation vent 130. A first pin hole is provided between the towing window 140 and the heat dissipation vent 130, and a second pin hole is provided on the bottom surface of the towing window 140. The off-road forklift counterweight also includes a towing pin 600, which passes through the first pin hole and the second pin hole. By setting the towing pin 600, the off-road forklift counterweight also has a towing function. When the off-road forklift needs to tow other equipment or vehicles, an external towing device can be connected to the towing pin 600, and the towing operation can be achieved using the off-road forklift's own power, thus expanding the application scenarios of the off-road forklift. The design of the towing pin 600 passing through the first pin hole and the second pin hole can ensure the structural stability during the towing process, prevent the towing pin 600 from shifting or falling off when under force, and ensure the safety of the towing operation. Meanwhile, the arrangement of the traction windows 140 at intervals below the heat dissipation vents 130 ensures that the traction function will not interfere with the air intake and exhaust of the heat dissipation system.

[0033] like Figure 9 and Figure 10As shown in this embodiment of the invention, the upper end of the towing pin 600 is placed inside the heat dissipation vent 130 and forms a pull ring. The off-road forklift counterweight also includes a protective net 500 located at the heat dissipation vent 130. The top of the protective net 500 has a notch 510 for the towing pin 600 to pass laterally. The protective net 500 effectively prevents external debris from entering the counterweight through the heat dissipation vent 130, avoiding debris accumulation that could affect heat dissipation efficiency or damage internal components. Simultaneously, the design of the pull ring inside the heat dissipation vent 130 and the notch 510 at the top of the protective net 500 facilitates the operator's insertion and removal of the towing pin 600 via the pull ring. Furthermore, since the heat dissipation vent 130 adopts a shape that is wider at the top and narrower at the bottom, placing the notch 510 at the top of the protective net 500 maximizes the lateral extension of the notch 510, thus providing sufficient space for the lateral passage of the towing pin 600 and preventing difficulty in inserting or removing the towing pin 600 due to the notch 510 being too small.

[0034] like Figure 1 and Figure 9 As shown, in this embodiment of the invention, the counterweight for the off-road forklift also includes a protective net 500 disposed at the heat dissipation vent 130. The protective net 500 is trapezoidally arranged corresponding to the heat dissipation vent 130, and each side of the protective net 500 is provided with a connecting piece 520, which is connected to the tail plate side 123 by bolts. By providing a connecting piece 520 on each side plate of the protective net 500, the stability of the connection between the protective net 500 and the tail plate side 123 can be enhanced, and the bolt connection method also facilitates the disassembly of the protective net 500 in the later stage, so as to inspect and maintain the internal device of the counterweight through the heat dissipation vent 130.

[0035] like Figures 6 to 8As shown, in this embodiment of the invention, the support frame assembly further includes a first support longitudinal beam 350, a second support longitudinal beam, a first support plate 330, and a second support plate 340. The first support longitudinal beam 350 and the second support longitudinal beam extend from the first support rod 310 and the second support rod 320 to the cab 400, respectively. The rear section 120 of the cover overlaps with the first support longitudinal beam 350 and the second support longitudinal beam. The first support plate 330 and the second support plate 340 extend inwardly from the first support longitudinal beam 350 and the second support longitudinal beam to the frame 900, respectively. The first support longitudinal beam 350 and the second support longitudinal beam provide stable vertical support for the rear section 120 of the cover, while the first support plate 330 and the second support plate 340, through their inclined extension, transmit the supporting force of the first support longitudinal beam 350 and the second support longitudinal beam towards the frame 900, forming a structure similar to a triangular support, further improving the overall load-bearing capacity and deformation resistance of the support frame assembly. This design allows the rear section 120 of the housing to evenly distribute the force to the frame 900 through the support frame assembly when subjected to vibrations and impacts during forklift operation, avoiding structural damage caused by localized stress concentration. At the same time, it provides a reliable protective barrier for the rear of the cab 400, enhancing the safety of the off-road forklift when driving and operating in complex road conditions.

[0036] Specifically, the support frame assembly also includes a support diagonal brace 360, which is connected to both the support plate and the frame 900. The support diagonal brace 360 ​​is inclined in the opposite direction to the support plate to further improve the structural stability of the support frame assembly. When the support plate is subjected to a lateral force from the rear section 120 of the housing, the support diagonal brace 360 ​​can directly transfer part of the force to the frame 900 through its reverse inclination angle, effectively counteracting any bending or torsional tendencies that may occur in the support plate under stress. This reverse inclination design not only increases the shear resistance of the support frame assembly in the horizontal direction but also, together with the first support longitudinal beam 350, the second support longitudinal beam, the first support plate 330, and the second support plate 340, forms a multi-dimensional three-dimensional support frame, making the support of the entire support frame assembly for the rear section 120 of the housing more comprehensive and stable.

[0037] Specifically, a support slope is formed on the side of the support plate away from the cab 400. The support slope extends inclinedly from the middle section of the support plate toward the lower frame 900 to improve the support plate's ability to withstand longitudinal impact forces.

[0038] like Figure 1 and Figure 10As shown in this embodiment of the invention, a taillight frame 700 is also provided on the rear section 120 of the housing. The taillight frame 700 forms a taillight mounting space and includes a taillight top plate 710 and two taillight side plates 720 located on both sides of the taillight top plate 710. The taillight top plate 710 extends rearward from the rear section 120 of the housing and the distance between it and the rear section 120 of the housing gradually increases. The two taillight side plates 720 are positioned away from the taillight top plate 710 and away from the rear section 120 of the housing. The taillight frame 700 provides an independent and stable mounting position for the taillight. The cross-sectional dimensions of the taillight mounting space gradually increase towards the rear of the off-road forklift, providing sufficient heat dissipation space for the taillight and preventing the taillight from being affected by heat accumulation during long-term use. At the same time, the rearward extension design of the taillight top plate 710, together with the taillight side plates 720 on both sides, forms a structure similar to a deflector, which can play a certain role in sorting the airflow at the rear when the forklift is moving, reducing air resistance.

[0039] like Figure 1 and Figure 8 As shown in this embodiment of the invention, the counterbalance of the off-road forklift also includes a positioning cover plate 150. The positioning cover plate 150 is disposed between the two rear uprights 410 of the cab 400 and extends towards the side away from the cab 400. The front section 110 of the cover includes a first mounting part 111 and a second mounting part 112, which form a positioning notch for the positioning cover plate 150 to be inserted. The positioning cover plate 150 effectively covers the space between the rear uprights 410 of the cab 400, preventing external debris from entering the rear area of ​​the cab 400. The positioning notch formed by the first mounting part 111 and the second mounting part 112, along with the insertion of the positioning cover plate 150, achieves precise positioning between the front section 110 of the cover and the cab 400, ensuring the accuracy of the installation position and effectively preventing component interference problems caused by installation deviations.

[0040] Specifically, the splicing design of the front end face of the first mounting part 111 and the second mounting part 112 with the rear column 410 makes the front section 110 of the cover and the rear column 410 of the cab 400 form a stable connection structure, which improves the overall structural strength of the rear of the cab 400.

[0041] like Figure 4 As shown, in order to achieve the above-mentioned objective, a second aspect of the present invention provides an off-road forklift including the above-described off-road forklift counterweight. The off-road forklift also includes a frame 900, which includes a frame 900 body, frame side plates 910, and a roof frame. A front wheel guard and a rear wheel guard are provided on the frame 900 body. The frame side plates 910 are located between the front wheel guard and the rear wheel guard. The roof frame connects to the frame side plates 910 and, together with the frame side plates 910, encloses the cab 400.

[0042] Specifically, the frame side plate 910 has a reinforced side plate near the rear wheel guard plate, and the rear upright 410 of the roof rack connects to the frame side plate 910 and abuts laterally against the reinforced side plate. The reinforced side plate effectively enhances the stability of the connection structure between the roof rack rear upright 410 and the frame side plate 910. When the off-road forklift is traveling on complex road conditions or performing heavy loading and unloading operations, the longitudinal load borne by the rear upright 410 can be more evenly distributed to the frame side plate 910 and the frame 900 body through the reinforced side plate, ensuring that the cab 400 can maintain structural integrity and safety under conditions such as vehicle bumps or emergency braking.

[0043] Specifically, the top surface of the side panel 910 is designed as an upwardly convex arc surface. The frame 900 also includes a reinforcing rib extending along the top surface of the side panel 910. One end of the reinforcing rib abuts against the rear upright 410, and the other end abuts against the front wheel guard plate. By designing the top surface of the side panel 910 as an arc surface, the bending strength of the side panel 910 itself can be improved. Furthermore, the connection between the reinforcing rib and the front and rear components makes the entire roof frame structure more stable, enhancing the structural stability and deformation resistance of the off-road forklift when operating on rough terrain.

[0044] Specifically, the frame 900 also includes a mounting base, which includes two mounting platforms and a mounting base plate connecting the bottom of the two mounting platforms. The two mounting platforms are respectively located on the two front wheel guards. The two mounting platforms are used for mounting the control assembly of the off-road forklift. The two mounting platforms form a pedal operating space for setting up the pedals of the off-road forklift.

[0045] Specifically, the mounting platform is arc-shaped and abuts against the side plate 910 of the frame along the front wheel guard. The two front uprights of the roof rack are connected to the two front wheel guards one by one, and abut against the front end faces of the two mounting platforms one by one, providing a stable front support point for the roof rack. It can also transfer some of the external force borne by the roof rack to the front wheel guard and the side plate 910 of the frame through the mounting platform, thereby enhancing the overall rigidity and impact resistance of the off-road forklift during driving and operation.

[0046] Specifically, the off-road forklift also includes a front-wheel steering mechanism and a rear-wheel steering mechanism mounted on the frame 900. These mechanisms drive the front and rear wheels of the forklift in a one-to-one correspondence. By setting up these two steering mechanisms, the front and rear wheels can be individually controlled for steering, enabling various steering modes such as front-wheel steering, rear-wheel steering, or four-wheel coordinated steering. When operating in narrow spaces, the rear-wheel steering mode can be activated to reduce the turning radius and improve site adaptability. During long-distance straight-line travel, switching to front-wheel steering ensures stability. When facing complex and rugged terrain, four-wheel coordinated steering provides greater maneuverability, effectively reducing tire wear and ground friction, further enhancing the forklift's handling performance and operational efficiency under different working conditions.

[0047] Furthermore, both the front wheel steering mechanism and the rear wheel steering mechanism 800 include an axle, a steering cylinder, a steering seat, a connecting plate, and a wheel hub connecting assembly. The axle is mounted on the frame 900 body and includes a first bridge and a second bridge spaced apart along the height direction. The steering cylinder is located between the first bridge and the second bridge. The steering seat includes an upper seat body connected to the first bridge, a lower seat body connected to the second bridge, and a rotating shaft that can rotate axially between the upper and lower seats. The rotating shaft is provided with a first connecting part and a second connecting part. The first connecting part connects to the wheel hub connecting assembly. The connecting plate is bent and protrudes away from the rotating shaft, and its two ends are respectively hinged to the second connecting part and the piston rod of the steering cylinder.

[0048] In the description of this invention, it should be understood that 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An off-road forklift counterweight, characterized by, The off-road forklift counterweight comprises: A main body cover (100) covers the rear side of the cab (400) of the off-road forklift and comprises a cover front section (110) and a cover rear section (120) arranged in sequence from front to rear, the cover front section (110) is located between the cab (400) and the rear wheels (800) and is placed on a first support surface formed by the frame side plate (910), and the cover front section (110) is formed with a front end surface abutting against the rear upright (410) of the cab (400), and the cover rear section (120) is located between the two rear wheels (800) of the off-road forklift and is placed on a second support surface formed by the frame (900); Two extension covers (200) are arranged on opposite sides of the cover rear section (120), and the two extension covers (200) respectively shield the upper sides of the two rear wheels (800) one by one; A support frame assembly comprises a first support rod (310) and a second support rod (320), the first support rod (310) and the second support rod (320) are arranged in sequence and spaced apart along the width direction of the frame (900) of the off-road forklift, and extend obliquely from the frame (900) to the opposite sides of each other, the lower ends of the first support rod (310) and the second support rod (320) are connected with the frame (900), and the upper ends are connected with the cover rear section (120).

2. The rough terrain forklift counterweight of claim 1, wherein, The cover rear section (120) comprises a top plate side (121) and two edge plate sides (122), the first support rod (310) and the second support rod (320) are each formed with a first vertical edge (301) on the side arranged outward, and the first vertical edges (301) of the first support rod (310) and the second support rod (320) respectively abut against the inner walls of the two edge plate sides (122).

3. The rough terrain forklift counterweight of claim 2, wherein, The periphery of the first support rod (310) and the second support rod (320) comprises the first vertical edge (301), a second vertical edge (302), a lower inclined edge (303) and an upper inclined edge (304), the first vertical edge (301) is located on the first side of the support rod arranged outward and connected with the cover rear section (120), the second vertical edge (302) is located on the side arranged inward of the corresponding support rod and connected with the frame (900), the upper inclined edge (304) and the lower inclined edge (303) are arranged on the upper and lower sides of the corresponding support rod and are inclined outward in the direction from bottom to top, and the angle between the upper inclined edge (304) and the horizontal direction is greater than the angle between the lower inclined edge (303) and the horizontal direction.

4. The rough terrain forklift counterweight of claim 2, wherein, The first support rod (310) and the second support rod (320) are formed with a connecting surface on the side away from the cab (400), the rear section (120) of the cover further comprises a tail plate side (123) which is bent downward from the top plate side (121), the tail plate side (123) is raised inward to form a third mounting portion (124), the third mounting portion (124) abuts the connecting surface and is detachably connected with the connecting surface by fasteners.

5. The rough terrain forklift counterweight of claim 4, wherein, The tail plate side (123) is formed with a rear-opening heat dissipation opening (130), the heat dissipation opening (130) is arranged opposite to the ventilation area (305) between the first support rod (310) and the second support rod (320), and the heat dissipation opening (130) is arranged in a gradually expanding manner from bottom to top.

6. The rough terrain forklift counterweight of claim 5, wherein, The tail plate side (123) is further provided with a towing window (140), the towing window (140) is arranged on the lower side of the heat dissipation opening (130), a first bolt hole is arranged between the towing window (140) and the heat dissipation opening (130), a second bolt hole is arranged on the bottom surface of the towing window (140), and the off-road forklift balance weight further comprises a towing pin (600), the towing pin (600) is arranged in the first bolt hole and the second bolt hole.

7. The rough terrain forklift counterweight of claim 6, wherein, The upper end of the towing pin (600) is arranged in the heat dissipation opening (130) and is formed with a pull ring, the off-road forklift balance weight further comprises a protective net (500) arranged at the heat dissipation opening (130), the top of the protective net (500) is provided with a gap (510) through which the towing pin (600) can pass transversely; And / or, the off-road forklift balance weight further comprises a protective net (500) arranged at the heat dissipation opening (130), the protective net (500) is arranged in a trapezoidal shape corresponding to the heat dissipation opening (130), and the side edges of the protective net (500) are provided with connecting plates (520), the connecting plates (520) are connected with the tail plate side (123) by bolts.

8. The rough terrain forklift counterweight of claim 2, wherein, The support frame assembly further comprises a first support longitudinal beam (350), a second support longitudinal beam, a first support plate (330) and a second support plate (340), the first support longitudinal beam (350) and the second support longitudinal beam extend from the first support rod (310) and the second support rod (320) to the cab (400) respectively, the rear section (120) of the cover is overlapped on the first support longitudinal beam (350) and the second support longitudinal beam, and the first support plate (330) and the second support plate (340) extend inwardly and obliquely from the first support longitudinal beam (350) and the second support longitudinal beam to the vehicle frame (900) respectively.

9. The rough terrain forklift counterweight of any one of claims 1 to 8, wherein, The off-road forklift counterweight further comprises a positioning cover plate (150) arranged between two rear upright columns (410) of the cab (400) and extending towards a side away from the cab (400), the cab front section (110) comprises a first mounting portion (111) and a second mounting portion (112), the first mounting portion (111) and the second mounting portion (112) are spaced apart to form a positioning gap for embedding the positioning cover plate (150); The cab rear section (120) is further provided with a tail lamp frame (700), the tail lamp frame (700) forms a tail lamp mounting space and comprises a tail lamp top plate (710) and two tail lamp side plates (720) located on both sides of the tail lamp top plate (710), the tail lamp top plate (710) extends rearward from the cab rear section (120) and is arranged with gradually increasing spacing from the cab rear section (120), and the two tail lamp side plates (720) are arranged away from each other towards the cab rear section (120) from the tail lamp top plate (710).

10. An off-road fork truck characterized by, The off-road forklift comprises the off-road forklift counterweight according to any one of claims 1 to 9.

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