Seat type motor hood of reach forklift

Abstract

The invention discloses a seat type motor hood of a reach forklift, which relates to the technical field of forklifts, and comprises a support frame detachably connected to a frame main body; the machine cover body is connected with the frame main body through a rotating assembly, and the machine cover body can rotate to the top end of the supporting frame and is detachably connected with the supporting frame through a fixing piece or rotate to the outer side of the frame main body; the side cover shell is arranged on the outer side of the supporting frame, and the side cover shell is detachably connected with one face, in the width direction, of the machine cover body; the rear housing is arranged on the outer side of the supporting frame, and the rear housing is detachably connected with one face, in the length direction, of the machine cover body. According to the seat type motor hood of the reach forklift, the technical problems that the opening angle of an existing seat type motor hood is limited, and the maintenance space is limited are solved, and the purpose that the maintenance space of internal parts can be increased by increasing the opening angle of the hood body is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of forklifts, and particularly to a seat-type motor hood for a reach forklift. Background Art

[0002] In a forklift, key components such as a drive motor, a pump motor, and a steering motor are mainly installed inside the motor hood. The normal operation of the above components is crucial for ensuring the operation efficiency and safety of the forklift. Therefore, the motor hood not only needs to provide effective protection for these motors but also ensure sufficient space for repair and maintenance to facilitate regular inspection and maintenance.

[0003] However, there is generally a significant problem in the design of motor hoods on the current market, that is, the opening angle of the motor hood door is limited, resulting in limited space for repair and inspection. When performing maintenance tasks, it is difficult to fully expose the working area, which greatly limits the operation convenience of technicians and may affect the repair quality and efficiency.

[0004] Therefore, how to provide a seat-type motor hood for a reach forklift that can increase the opening angle of the hood to improve the repair space for internal parts is a technical problem that needs to be solved by those skilled in the art at present. Summary of the Invention

[0005] The purpose of the present invention is to provide a seat-type motor hood for a reach forklift, which solves the technical problems of the limited opening angle of the existing seat-type motor hood and the limited repair space.

[0006] To achieve the above purpose, the present invention provides a seat-type motor hood for a reach forklift, including:

[0007] A support frame detachably connected to the main body of the vehicle frame;

[0008] A hood body connected to the main body of the vehicle frame through a rotating assembly. The hood body can rotate to the top of the support frame and be detachably connected to the support frame through a fixing member, or rotate to the outside of the main body of the vehicle frame;

[0009] A side cover shell arranged outside the support frame, and the side cover shell is detachably connected to one side of the hood body in the width direction;

[0010] A rear cover shell arranged outside the support frame, and the rear cover shell is detachably connected to one side of the hood body in the length direction.

[0011] Preferably, the rotating assembly includes:

[0012] A load-bearing plate is fixedly connected to the bottom of the engine cover body, and a main pin shaft and a limit pin shaft are fixedly provided at the end of the load-bearing plate located outside the engine cover body. The limit pin shaft is arranged at the top of the avoidance notch of the load-bearing plate, and the main pin shaft is vertically arranged at the bottom of the load-bearing plate;

[0013] Mounting plates: On one side of the vehicle frame main body facing the engine cover body, two mounting plates are provided at intervals in the height direction. Through main pin holes and limit pin holes are provided on both mounting plates.

[0014] The large connecting rod is of a concave structure, and through first through holes are provided at both ends thereof. One end of the large connecting rod is rotatably connected to the main pin shaft, and the other end is rotatably connected to the main pin hole through a first rotating shaft;

[0015] The small connecting rod is of a concave structure, and through second through holes are provided at both ends thereof. One end of the small connecting rod is rotatably connected to the limit pin shaft, and the other end is rotatably connected to the limit pin hole through a second rotating shaft.

[0016] Preferably, the engine cover body is a three-sided bent metal plate.

[0017] Preferably, a backing plate is fixed to the upper end of the engine cover body, and a plurality of through welding holes are provided on the contact surface between the engine cover body and the backing plate.

[0018] Preferably, both the side cover shell and the rear cover shell are plastic shells.

[0019] Preferably, the rear cover shell is provided with mesh-shaped heat dissipation holes.

[0020] Preferably, a hook is provided on one side of the side cover shell facing the vehicle frame main body, and a clamping groove engaged with the hook is provided on the vehicle frame main body.

[0021] Preferably, a clamping hole is provided at the bottom of one side of the side cover shell facing the rear cover shell, and a snap hook engaged with the clamping hole is provided on the rear cover shell.

[0022] Preferably, the support frame includes a horizontal beam and a vertical beam, and the horizontal beam and the vertical beam are connected by an inclined beam.

[0023] Preferably, the fixing member is a hand-tightening bolt.

[0024] Compared with the above background technology, for a seat-type motor hood of a reach forklift provided by the present invention, when initially overhauling the reach forklift, an operator can first remove the side cover shell and the rear cover shell. Once removed, most of the components in the engine compartment will be exposed. For daily maintenance work, only by removing the side cover shell and the rear cover shell, basic inspections and maintenance can be conveniently carried out, which is both time-saving and labor-saving.

[0025] If the existing faults still cannot be handled after removing the side cover and the rear cover, the operator can further disassemble the fixing parts. After the fixing parts are disassembled, the hood body can rotate around the rotating assembly to the outside of the vehicle frame body. Furthermore, the maintenance space inside the engine compartment will be further enlarged, and the operator can more conveniently access each component inside the engine compartment for in-depth maintenance and repair work.

[0026] In summary, for the seat-type motor hood of the reach forklift provided in this application, during preliminary maintenance, the operator can first remove the side cover and the rear cover for basic inspection and maintenance. If the existing faults still cannot be handled after removing the side cover and the rear cover, the operator can further disassemble the fixing parts. After the fixing parts are disassembled, the hood body can rotate around the rotating assembly to the outside of the vehicle frame body, increasing the opening angle of the hood body to improve the maintenance space for internal parts, and the operator can perform in-depth maintenance and repair work. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0028] Figure 1 Assembly schematic diagram of the seat-type motor hood of the reach forklift provided by the embodiment of the present invention;

[0029] Figure 2 Partial explosion schematic diagram of the seat-type motor hood of the reach forklift provided by the embodiment of the present invention;

[0030] Figure 3 Schematic diagram of the hood body being opened provided by the embodiment of the present invention;

[0031] Figure 4 Schematic diagram of the back of the hood body provided by the embodiment of the present invention;

[0032] Figure 5 Front view of the hood body provided by the embodiment of the present invention;

[0033] Figure 6 For Figure 5 Enlarged schematic diagram of part A of

[0034] Figure 7 Connection schematic diagram of the mounting plate provided by the embodiment of the present invention;

[0035] Figure 8Schematic diagram of the big connecting rod provided by the embodiment of the present invention;

[0036] Figure 9 Schematic diagram of the small connecting rod provided by the embodiment of the present invention;

[0037] Figure 10 Schematic diagram of the connection between the engine cover body and the rotating assembly provided by the embodiment of the present invention;

[0038] Figure 11 Schematic diagram of the rear cover housing structure provided by the embodiment of the present invention;

[0039] Figure 12 Schematic diagram of the side cover housing structure provided by the embodiment of the present invention;

[0040] Figure 13 Schematic diagram of the support frame structure provided by the embodiment of the present invention;

[0041] Figure 14 Simplified model diagram of the four-bar linkage mechanism provided by the embodiment of the present invention.

[0042] Wherein:

[0043] 1 - Support frame, 2 - Vehicle frame main body, 3 - Engine cover body, 4 - Rotating assembly, 5 - Fixing piece, 6 - Side cover housing, 7 - Rear cover housing, 8 - Load-bearing plate, 9 - Main pin shaft, 10 - Limit pin shaft, 11 - Mounting plate, 12 - Main pin hole, 13 - Limit pin hole, 14 - Big connecting rod, 15 - First through hole, 16 - Small connecting rod, 17 - Second through hole, 18 - Pad, 19 - Welding hole, 20 - Mesh heat dissipation hole, 21 - Hook, 22 - Hole, 23 - Buckle hook. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] In order to enable those skilled in the art in the technical field to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0046] See Figures 1 - 3, the present invention provides a seat-type motor hood for a reach forklift, including a support frame 1 detachably connected to the vehicle frame main body 2; a hood main body 3 connected to the vehicle frame main body 2 through a rotating assembly 4, and the hood main body 3 can rotate to the top of the support frame 1 and be detachably connected to the support frame 1 through a fixing member 5, or rotate to the outside of the vehicle frame main body 2; a side cover 6 arranged on the outside of the support frame 1, and the side cover 6 is detachably connected to one side of the hood main body 3 in the width direction to provide side protection; a rear cover 7 arranged on the outside of the support frame 1, and the rear cover 7 is detachably connected to one side of the hood main body 3 in the length direction to form rear protection.

[0047] Specifically, the support frame 1 is fixedly connected to the vehicle frame main body 2 by bolts to provide a supporting function. The hood main body 3 is rotatably connected to the vehicle frame main body 2 through the rotating assembly 4. Thus, the hood main body has two working states:

[0048] Closed state: The hood main body 3 rotates to the top of the support frame 1 and is detachably connected to the support frame 1 through the fixing member 5 to form a closed motor protection space;

[0049] Open state: The hood main body 3 rotates around the rotating assembly 4 to the outside of the vehicle frame main body 2 to expand the internal maintenance space.

[0050] When performing preliminary maintenance on the reach forklift, the operator can first remove the side cover 6 and the rear cover 7 (as shown in Figure 2 ). Once removed, most of the components in the engine compartment will be exposed. For daily maintenance work, only by removing the side cover 6 and the rear cover 7 can basic inspections and maintenance be conveniently carried out, which is both time-saving and labor-saving.

[0051] If the existing faults still cannot be handled after removing the side cover 6 and the rear cover 7, then the operator can further disassemble the fixing member 5. After disassembling the fixing member 5, the hood main body 3 can rotate around the rotating assembly 4 to the outside of the vehicle frame main body 2. Further, the maintenance space inside the engine compartment will be further expanded, and the operator can more conveniently access each component in the engine compartment for in-depth maintenance and repair work.

[0052] In summary, for the seat-type motor hood of the reach forklift provided in this application, during preliminary maintenance, the operator can first remove the side cover 6 and the rear cover 7 for basic inspections and maintenance. If the existing faults still cannot be handled after removing the side cover 6 and the rear cover 7, then the operator can further disassemble the fixing member 5. After disassembling the fixing member 5, the hood main body 3 can rotate around the rotating assembly 4 to the outside of the vehicle frame main body 2, and the opening angle of the hood main body 3 can be increased to enhance the maintenance space for internal parts, and the operator can carry out in-depth maintenance and repair work.

[0053] Specifically, the fixing member 5 is a hand-tightening bolt. The engine cover body 3 and the vehicle frame main body 2 are correspondingly provided with mounting holes that cooperate with the hand-tightening bolt. A hand-tightening bolt is a bolt that is convenient for manual tightening. Its head design is usually convenient for fingers or tools to hold and rotate, making the installation and disassembly process more simple and fast.

[0054] Based on the above embodiments, refer to Figures 4 - 10 , that is to say, the load-bearing plate 8 is fixedly connected to the bottom of the engine cover body 3. The main pin shaft 9 and the limit pin shaft 10 are arranged at the outer end of the load-bearing plate 8. The main pin shaft 9 is vertically fixed to the bottom of the load-bearing plate 8 and serves as the main fulcrum for the rotation of the engine cover body 3; the limit pin shaft 10 is located at the top of the avoidance notch of the load-bearing plate 8 and is used to limit the rotation trajectory of the engine cover body 3. The connection methods of the main pin shaft 9 and the limit pin shaft 10 are both welding.

[0055] On the vehicle frame main body 2 on the side facing the engine cover body 3, two mounting plates 11 are arranged at intervals along the height direction. Each mounting plate 11 is provided with a through main pin hole 12 and a limit pin hole 13, which respectively cooperate with the main pin shaft 9 and the limit pin shaft 10.

[0056] The large connecting rod 14 is of a concave structure, and first through holes 15 are opened at both ends. One end is rotatably connected to the main pin shaft 9 through the first through hole 15; the other end is rotatably connected to the main pin hole 12 of the vehicle frame main body 2 through the first rotating shaft. The size of the groove of the large connecting rod 14 is based on ensuring that the engine cover body 3 will not touch the vehicle frame main body 2 during the process of opening at a large angle.

[0057] The small connecting rod 16 is also of a concave structure, and second through holes 17 are opened at both ends. One end is rotatably connected to the limit pin shaft 10 through the second through hole 17; the other end is rotatably connected to the limit pin hole 13 of the vehicle frame main body 2 through the second rotating shaft.

[0058] The above structure together constitutes a four-bar linkage mechanism. Through the linkage of the main pin shaft 9, the limit pin shaft 10, the large connecting rod 14 and the small connecting rod 16, the stable rotation of the engine cover body 3 is realized. The degree of freedom of this mechanism is 1, ensuring that the engine cover body 3 moves along the preset trajectory;

[0059] When closed, the engine cover body 3 rotates to the top of the support frame 1 and is locked by the fixing member 5;

[0060] When opened, the engine cover body 3 rotates around the rotating assembly 4 to the outside of the vehicle frame main body 2, and the maximum opening angle exceeds 180°, expanding the maintenance space.

[0061] The concave structures of the large connecting rod 14 and the small connecting rod 16 can avoid interference with the vehicle frame main body 2, ensuring the safety of the engine cover body 3 during large-angle rotation.

[0062] Refer to Figure 14 , which is a simplified model diagram of the four-bar linkage mechanism.

[0063] Fixed connecting rod - U: The mounting plate 11 on the frame body 2 serves as a fixed fulcrum and is rigidly connected to the frame body 2;

[0064] Moving connecting rod - V: The small connecting rod 16 forms a revolute pair with the limit pin shaft 10 and the limit pin hole 13 respectively through the second through hole 17;

[0065] Moving connecting rod - W: The large connecting rod 14 forms a revolute pair with the main pin shaft 9 and the main pin hole 12 respectively through the first through hole 15;

[0066] Moving connecting rod - X: The engine cover body 3 is rigidly connected to the main pin shaft 9 and the limit pin shaft 10 through the load - bearing plate 8 to form a composite moving body.

[0067] Mechanical principle degree - of - freedom formula: F = 3n−2J−h, where:

[0068] n = 3, the number of moving components (V, W, X);

[0069] J = 4, the number of lower pairs (the main pin shaft 9 and the large connecting rod 14, the main pin hole 12 and the large connecting rod 14, the limit pin shaft 10 and the small connecting rod 16, the limit pin hole 13 and the small connecting rod 16);

[0070] h = 0, the number of higher pairs (no higher pairs);

[0071] Substituting into the formula gives:

[0072] F = 3×3−2×4−0 = 1;

[0073] In summary, it shows that the mechanism has a single degree of freedom, ensuring that the engine cover body 3 moves along a preset trajectory and avoiding the motion uncertainty caused by multiple degrees of freedom.

[0074] The large connecting rod 14 and the small connecting rod 16 are arranged in parallel, and the engine cover body 3 is locked to the support frame 1 through the fixing member 5; Open state: When the engine cover body 3 rotates to the outside of the frame body 2, it breaks through the 180° opening limit of the traditional four - bar mechanism. Generally speaking, the relative positions of each rotation point are similar to Figure 14 the distribution of, and when the engine cover body 3 is in the open state, the connecting rod V and the connecting rod W will be cross - arranged in space. Otherwise, the effect of a large opening angle cannot be achieved (when the engine cover assembly is in the normal closed state, the connecting rods V and W do not cross).

[0075] Specifically, the large connecting rod 14 is rotationally connected to the main pin hole 12 of the frame body 2 through the first pin shaft, thereby allowing the large connecting rod 14 to rotate around the main pin hole 12. Similarly, the small connecting rod 16 is also rotationally connected to the limit pin hole 13 of the frame body 2 through the second pin shaft, thereby realizing the opening and closing actions of the engine cover body 3 as a whole.

[0076] Based on the above embodiments, the hood body 3 is a three-sided bent metal plate. That is to say, the hood body 3 is made of a three-sided bent metal plate. Namely, a thin metal plate is selected as the base material, and its three sides are formed through bending (or stamping) processes, so that flanges are formed on the three sides of the hood body 3. The flanges can serve as reinforcing ribs, improving the structural strength of the hood body 3.

[0077] Based on the above embodiments, refer to Figure 4 , Figure 5 , a backing plate 18 is fixed to the upper end of the hood body 3. To ensure a firm connection between the backing plate 18 and the hood body 3, a plurality of through welding holes 19 are provided on the contact surface between the hood body 3 and the backing plate 18. The number of welding holes 19 can be 6, which are evenly distributed on the contact surface. During the welding process, the backing plate 18 is welded through the welding holes 19 from the back of the hood body 3. Furthermore, after welding is completed, the weld seams will be hidden on the back of the hood body 3, and no weld seams can be seen on the front, making the entire hood assembly more beautiful.

[0078] The main function of the backing plate 18 is to serve as a directly contacting part when installing the seat, which can strengthen the panel of the hood body 3 and improve the structural strength of the entire hood assembly.

[0079] Based on the above embodiments, both the side cover 6 and the rear cover 7 are plastic shells. The side cover 6 and the rear cover 7 are both designed as plastic shells, and the specific material is PP (polypropylene).

[0080] The beneficial effects of both the side cover 6 and the rear cover 7 being plastic shells are as follows: The cost of the injection mold is relatively low. The PP material has good processing performance and is suitable for injection molding, so the manufacturing cost of the mold can be reduced; Compared with metal materials, the plastic shell made of PP material is lighter in weight, which helps to reduce the weight of the whole vehicle; The PP material has good toughness. Even if it is impacted, it can easily rebound and recover automatically, reducing the maintenance cost and time.

[0081] Based on the above embodiments, refer to Figure 11 , the rear cover 7 is provided with a mesh-shaped heat dissipation hole 20. The mesh-shaped heat dissipation hole 20 allows hot and cold air to exchange inside and outside the engine compartment. Because electrical components generate heat during operation, if the heat cannot be dissipated in time, it may cause the components to overheat, thereby affecting their performance and lifespan. The existence of the mesh-shaped heat dissipation hole 20 ensures good air circulation in the engine compartment, effectively helping the electrical components to dissipate heat, so as to maintain their normal working state.

[0082] Secondly, the design of the mesh-shaped heat dissipation hole 20 also takes into account the protection. Its fine mesh holes can block larger particulate debris, such as small stones, to prevent them from entering the engine compartment and damaging the electrical components.

[0083] Based on the above embodiments, refer to Figure 11 , Figure 12 , both the side cover 6 and the rear cover 7 are connected to the engine cover body 3 by bolts. This connection method is both firm and convenient for disassembly.

[0084] Both the top of the side cover 6 and the rear cover 7 are provided with flanges, and the flanges are located above the engine cover body 3, ensuring the stability and reliability of the connection part.

[0085] At the same time, corresponding mounting holes are provided on both the flange and the engine cover body 3 to ensure that the bolts can accurately pass through and be tightly connected. During the installation process, just pass the bolts through the corresponding mounting holes to complete the connection between the side cover 6, the rear cover 7 and the engine cover body 3.

[0086] Based on the above embodiments, on one side of the side cover 6 facing the vehicle frame main body 2, a hook 21 is provided, and on the vehicle frame main body 2, a slot that is engaged with the hook 21 is provided. The engagement principle of the hook and the slot realizes the positioning and fastening functions between the side cover 6 and the vehicle frame main body 2. When the side cover 6 is installed on the vehicle frame main body 2, the hook 21 will accurately engage into the slot, thus ensuring that the position of the side cover 6 on the vehicle frame main body 2 is stable and does not shake. The cooperation between the hook 21 and the slot not only provides a firm connection, but also makes the installation process more simple and fast. Without using additional fasteners or tools, just align the side cover 6 with the slot position on the vehicle frame main body 2 and gently push it to achieve the snap connection.

[0087] In addition, the design of the hook 21 and the slot also takes into account the convenience of disassembly. When it is necessary to disassemble the side cover 6, just gently pry the hook 21 to make it disengage from the slot, and then the side cover 6 can be easily removed.

[0088] Based on the above embodiments, at the bottom of one side of the side cover 6 facing the rear cover 7, a clamping hole 22 is provided. The clamping hole 22 is a rectangular hole. Correspondingly, on the rear cover 7, a hook 23 that is engaged with the clamping hole 22 is provided to ensure that it can accurately engage into the clamping hole 22 on the side cover 6, thereby realizing a firm connection between the two.

[0089] The engagement method between the clamping hole and the hook not only provides a stable connection effect, but also makes the installation process more simple. During installation, just align the hook 23 on the rear cover 7 with the clamping hole 22 on the side cover 6, and then gently push it to achieve a tight connection between the two.

[0090] In addition, this connection method also has a certain degree of flexibility. If it is necessary to disassemble the rear cover 7, just gently pry the hook 23 to make it disengage from the clamping hole 22, and then the rear cover 7 can be easily removed.

[0091] Based on the above embodiments, refer to Figure 13, the support frame 1 includes a horizontal beam and a vertical beam, which are connected by an inclined beam. That is, the corner of the support frame 1 is set as an inclined surface. After the machine cover body 3 is opened, since it is an overall cantilever structure and the weight of the tables and chairs installed on it is relatively large, there will inevitably be some collapse. Without this inclined surface design, when closing the machine cover, it may be necessary to manually lift the machine cover body 3 upward to close it. However, in this application, the inclined surface is provided to play a guiding role. When closing the machine cover body 3, only need to rotate it forcefully inward, and the guiding role of the inclined surface will offset the collapse amount of the machine cover body 3 to support the machine cover body 3. Then, the machine cover body 3 can be smoothly placed on the support frame, realizing an easy and convenient closing operation. In addition, the horizontal beam and the vertical beam are formed by welding angle steels. The angle steel has low cost and is convenient for production, and the angle steel has excellent structural strength, which can ensure the stability and reliability of the support frame 1.

[0092] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0093] In this article, specific examples are used to elaborate on the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A seat-type motor hood for a reach forklift, characterized in that: include: A support frame (1) is detachably connected to the frame body (2); A hood body (3) is connected to the vehicle frame body (2) via a rotating assembly (4); the hood body (3) can be rotated to the top of the support frame (1) and detachably connected to the support frame (1) via a fixing member (5), or rotated to the outside of the vehicle frame body (2); A side cover shell (6) is arranged on the outside of the support frame (1), and the side cover shell (6) is detachably connected to one side of the cover body (3) in the width direction; A rear cover shell (7) is arranged on the outside of the support frame (1), and the rear cover shell (7) is detachably connected to one side of the cover body (3) in the length direction.

2. The seat-type motor cover of a reach forklift according to claim 1, characterized in that: The rotating assembly (4) comprises: A load-bearing plate (8) is fixedly connected to the bottom of the cover body (3), and a main pin shaft (9) and a limit pin shaft (10) are fixedly provided at the end of the load-bearing plate (8) located outside the cover body (3), the limit pin shaft (10) is arranged at the top of the avoidance notch of the load-bearing plate (8), and the main pin shaft (9) is vertically arranged at the bottom of the load-bearing plate (8); A mounting plate (11), wherein the frame body (2) facing the side of the cover body (3) is provided with two mounting plates (11) spaced apart in the height direction, and both mounting plates (11) are provided with a main pin hole (12) and a limit pin hole (13) penetrating therethrough; The large connecting rod (14) is a concave structure, and both ends of the large connecting rod are provided with a first through hole (15) penetrating therethrough; one end of the large connecting rod (14) is rotatably connected to the kingpin shaft (9), and the other end is rotatably connected to the kingpin hole (12) via a first rotating shaft; The small connecting rod (16) is a concave structure, and has a second through hole (17) penetrating therethrough at both ends. One end of the small connecting rod (16) is rotationally connected to the limit pin shaft (10), and the other end is rotationally connected to the limit pin hole (13) via a second rotating shaft.

3. The seat-type motor cover of a reach forklift according to claim 2, characterized in that: The cover body (3) is a metal plate bent on three sides.

4. The seat-type motor cover of a reach forklift according to claim 3, characterized in that: A backing plate (18) is fixed to the upper end of the cover body (3), and a plurality of through-going welding holes (19) are provided on the contact surface between the cover body (3) and the backing plate (18).

5. The seat-type motor cover of a reach forklift according to claim 1, characterized in that: The side cover shell (6) and the rear cover shell (7) are both plastic shells.

6. The seat-type motor cover of a reach forklift according to claim 5, characterized in that: The rear cover (7) is provided with mesh heat dissipation holes (20).

7. The seat-type motor cover of a reach forklift according to claim 5, characterized in that: A hook (21) is provided on the side of the side cover (6) facing the frame body (2), and a slot for engaging with the hook (21) is provided on the frame body (2).

8. The seat-type motor cover of a reach forklift according to claim 6, characterized in that: A locking hole (22) is provided at the bottom of one side of the side cover shell (6) facing the rear cover shell (7), and the rear cover shell (7) is provided with a buckle hook (23) that is engaged with the locking hole (22).

9. The seat-type motor cover of a reach forklift according to claim 1, characterized in that: The support frame (1) comprises a horizontal beam and a vertical beam, and the horizontal beam and the vertical beam are connected by an inclined beam.

10. The seat-type motor cover of a reach forklift according to claim 1, characterized in that: The fixing member (5) is a hand-tightened bolt.

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