Forklift service braking control linkage mechanism and forklift

Abstract

The invention relates to the technical field of forklifts, in particular to a forklift service brake control linkage mechanism and a forklift, the brake control linkage mechanism comprises a base assembly, a brake master pump, a brake rocker arm assembly, a brake pedal assembly and a brake pedal angle sensor, and the brake master pump is connected with the brake rocker arm assembly; the brake rocker arm assembly and the brake pedal assembly are rotationally connected with the base assembly, and the brake pedal assembly can rotate relative to the base assembly to make contact with the brake rocker arm assembly and can push the brake rocker arm assembly to synchronously rotate relative to the base assembly so as to drive the brake master pump to act. The brake pedal rotation angle sensor is fixed to the base assembly and used for detecting the rotation angle of the brake pedal assembly. Therefore, according to the scheme, the angle signal of the pedal can be output in real time, when the brake master cylinder does not act, power and motor braking can be cut off, the vehicle micro-motion function is achieved, and micro-motion controllability and operation safety of the forklift are achieved.

Description

Technical Field

[0001] This application relates to the field of forklift technology, and in particular to a forklift travel brake control linkage mechanism and a forklift. Background Technology

[0002] Forklifts are industrial material handling vehicles, referring to various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. They are widely used in ports, railway stations, airports, freight yards, factory workshops, warehouses, distribution centers, and other locations, and are indispensable equipment for loading, unloading, and handling palletized goods in ship holds, truck beds, and containers. However, current forklift braking systems cannot achieve segmented braking, meaning that power cut-off, electric braking, and hydraulic braking all occur simultaneously, resulting in poor micro-motion performance. Summary of the Invention

[0003] The purpose of this application is to provide a forklift travel brake control linkage mechanism and forklift, which to a certain extent solves the technical problem that the existing forklift braking system cannot achieve segmented braking, so that power cut-off, motor braking and hydraulic braking are carried out at the same time, and cannot achieve segmented braking, resulting in poor micro-motion effect.

[0004] This application provides a forklift travel brake control linkage mechanism, including: a base assembly, a brake master cylinder, a brake rocker arm assembly, a brake pedal assembly, and a brake pedal angle sensor; wherein, the brake master cylinder is connected to the brake rocker arm assembly; the brake rocker arm assembly and the brake pedal assembly are respectively rotatably connected to the base assembly, and the brake pedal assembly can rotate relative to the base assembly to contact the brake rocker arm assembly, and can push the brake rocker arm assembly to rotate synchronously relative to the base assembly to drive the brake master cylinder to operate; the brake pedal angle sensor is fixed to the base assembly, and the brake pedal angle sensor is used to detect the rotation angle of the brake pedal assembly.

[0005] In the above technical solution, the brake pedal angle sensor further includes a fixed part and a rotating part; wherein the fixed part is fixed to the base assembly, and the rotating part is rotatably connected to the fixed part, the rotating part is fixedly connected to the brake pedal assembly, and the brake pedal assembly can synchronously drive the rotating part to rotate relative to the fixed part.

[0006] In any of the above technical solutions, the brake rocker arm assembly further includes a first mounting shaft, a first adapter, a mating part, a mounting base, a pin, and a mating part; wherein the first mounting shaft is rotatably connected to the base assembly; Both the first adapter and the mating part are fixed to the outer wall of the first mounting shaft, and the mating part is connected to the first adapter. The pedal assembly can rotate relative to the mating part so that the pedal assembly can contact or separate from the mating part. The moving part of the brake master cylinder is fixedly connected to the mounting base, and the mounting base is rotatably connected to the first adapter through the pin.

[0007] In any of the above technical solutions, the pedal assembly further includes a second mounting shaft, a pedal, a support shaft, and a bearing; wherein, along the axial direction of the first mounting shaft, the second mounting shaft is disposed on the side of the first mounting shaft and is rotatably connected to both the first mounting shaft and the base assembly, and the second mounting shaft is rotatable relative to the first mounting shaft and the base assembly; The rotating part of the brake pedal angle sensor is fixedly connected to the second mounting shaft and can rotate synchronously with the second mounting shaft; the pedal is fixed to the second mounting shaft; the support shaft is fixed to the side of the pedal near the brake rocker arm assembly, and the fixed part of the bearing is fixed to the support shaft, and the rotating part of the bearing can contact or separate from the mating part.

[0008] In any of the above technical solutions, the base assembly further includes a base plate, multiple support plates, and multiple bushings; wherein, the support plate is fixed to the base plate, and the support plate forms a mounting groove, and the bushing is fixed in the mounting groove; the first mounting shaft is rotatably connected to at least one bushing in the mounting groove, and the second mounting shaft is rotatably connected to at least another bushing in the mounting groove; the fixing part of the brake pedal angle sensor is fixed to the base plate.

[0009] In any of the above technical solutions, the forklift travel brake control linkage mechanism further includes a torsion spring, which is sleeved on the outside of the second mounting shaft, with one end of the torsion spring abutting against the base plate and the other end of the torsion spring abutting against the auxiliary limiting groove of the pedal.

[0010] In any of the above technical solutions, the base plate and the support plate are both arranged in a vertical direction and are perpendicular to each other.

[0011] In any of the above technical solutions, the forklift driving brake control linkage mechanism further includes a first adapter component, a brake light switch adjustment component, and a brake light switch; wherein, the first adapter component is fixed to the brake pedal assembly, the brake light switch adjustment component is fixed to the first adapter component, and the brake light switch adjustment component can rotate with the brake pedal assembly, thereby being able to contact or separate from the brake light switch to trigger the brake light switch to operate.

[0012] In any of the above technical solutions, the brake light switch adjusting component is a first adjusting bolt, the first adjusting bolt is provided with an adjusting nut, and the first adjusting bolt is fixed to the first adapter component by the adjusting nut, and the position of the first adjusting bolt can be adjusted along the direction toward or away from the brake light switch.

[0013] In any of the above technical solutions, the first adapter component and the brake pedal assembly are further detachably connected via a first fastening component.

[0014] In any of the above technical solutions, the base assembly further includes a first adapter plate and a second adapter plate; wherein the first adapter plate is fixedly connected to one of the support plates; the second adapter plate is detachably connected to the first adapter plate through a second fastening member, and the second adapter plate forms a positioning groove, the brake light switch forms a raised sensing part, and the raised sensing part is located in the mounting groove; the brake light switch adjustment member is fixed to the first adapter plate.

[0015] In any of the above technical solutions, the forklift driving brake control linkage mechanism further includes a brake pedal adjusting bolt and a brake pedal adjusting nut; wherein the brake pedal adjusting bolt is fixed to the base assembly by the brake pedal adjusting nut. The pedal assembly has an extended mating portion formed on the pedal side. The brake pedal adjusting bolt can be adjusted in a direction toward or away from the extended mating portion so that the pedal assembly can rotate relative to the base assembly, thereby changing the assembly clearance between the pedal assembly and the brake rocker arm assembly.

[0016] In any of the above technical solutions, the forklift travel brake control linkage mechanism further includes a fixing frame, the fixing frame is fixed to the base assembly, and the fixing body of the brake master cylinder is fixed to the fixing frame.

[0017] In any of the above technical solutions, further, along the vertical direction, the brake master cylinder is disposed below the brake rocker arm assembly; along the horizontal direction, the brake master cylinder and the brake rocker arm assembly are disposed on one side of the brake pedal, and the brake light switch and the brake pedal angle sensor are disposed on the opposite side of the brake pedal assembly.

[0018] In any of the above technical solutions, the forklift driving brake control linkage mechanism further includes a controller, and the controller is communicatively connected to the brake pedal angle sensor.

[0019] This application also provides a forklift, including the forklift travel brake control linkage mechanism described in any of the above technical solutions, and thus has all the beneficial technical effects of the forklift travel brake control linkage mechanism, which will not be repeated here.

[0020] Compared with the prior art, the beneficial effects of this application are as follows: This application provides a novel forklift travel brake control linkage mechanism that enables segmented braking. When the brake pedal is depressed, the power is first cut off, and the motor brakes. During this segment, the braking torque of the motor can be controlled by a signal provided by the controller to achieve micro-movement of the vehicle. Continuing to depress the brake pedal achieves hydraulic braking. In other words, this solution can output the pedal angle signal in real time. When the master cylinder is not activated, the power and motor braking can be cut off to achieve the micro-movement function of the vehicle, thereby improving the micro-movement controllability and operational safety of the forklift. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the forklift travel brake control linkage mechanism provided in the embodiments of this application; Figure 2 Another structural schematic diagram of the forklift travel brake control linkage mechanism provided in the embodiments of this application; Figure 3 Another structural schematic diagram of the forklift travel brake control linkage mechanism provided in the embodiments of this application; Figure 4 Another structural schematic diagram of the forklift travel brake control linkage mechanism provided in the embodiments of this application; Figure 5 for Figure 4 A magnified structural diagram at point A; Figure 6 This is another structural schematic diagram of the forklift driving brake control linkage mechanism provided in the embodiments of this application.

[0023] Figure label: 1-Base assembly, 101-Base plate, 102-Support plate, 103-Busset, 104-First adapter plate, 105-Second adapter plate, 2-Master brake cylinder, 21-Body, 22-Moving part, 3-Brake rocker arm assembly, 31-First mounting shaft, 32-First adapter part, 33-Mating part, 34-Mounting seat, 35-Pin, 4-Brake pedal assembly, 41-Second mounting shaft, 42-Pedal, 421-Auxiliary limiting groove, 43-Support shaft, 44-Bearing, 45-Extended mating part, 5-Brake light switch adjusting component, 6-Brake light switch, 61-Raised sensing part, 7-Brake pedal angle sensor, 8-First adapter component, 9-Adjusting nut, 10-First fastening component, 11-Brake pedal adjusting bolt, 12-Brake pedal adjusting nut, 13-Torsion spring, 14-Fixing bracket, 15-Second fastening component. Detailed Implementation

[0024] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0025] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0026] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] The following reference Figures 1 to 6 This application describes a forklift travel brake control linkage mechanism and a forklift according to some embodiments thereof.

[0030] See Figures 1 to 6 As shown, an embodiment of this application provides a forklift driving brake control linkage mechanism, including: a base assembly 1, a brake master cylinder 2, a brake rocker arm assembly 3, a brake pedal assembly 4, and a brake pedal angle sensor 7; wherein, the brake master cylinder 2 is connected to the brake rocker arm assembly 3; the brake rocker arm assembly 3 and the brake pedal assembly 4 are respectively rotatably connected to the base assembly 1, and the brake pedal assembly 4 can rotate relative to the base assembly 1 to contact the brake rocker arm assembly 3, and can push the brake rocker arm assembly 3 to rotate synchronously relative to the base assembly 1 to drive the brake master cylinder 2 to operate; the brake pedal angle sensor 7 is fixed to the base assembly 1, and the brake pedal angle sensor 7 is used to detect the rotation angle of the brake pedal assembly 4.

[0031] Based on the structure described above, the working process of the forklift driving brake control linkage mechanism provided in this application is as follows: When the brake pedal 42 of the brake pedal assembly 4 is pressed, the brake pedal assembly 4 rotates. At this time, the brake pedal assembly 4 is not in contact with the brake rocker arm assembly 3, and the brake master cylinder 2 does not move. The brake light switch adjustment component 5 described below is disengaged from the brake light switch 6 under the drive of the brake pedal assembly 4, and the brake light indicates braking. The brake pedal angle sensor 7 outputs an angle signal to the controller to realize power cut-off and motor braking. The controller can control the magnitude of the motor braking torque according to the detected angle data, that is, to realize vehicle micro-movement. When the brake pedal 42 is pressed again, the brake pedal assembly 4 contacts the brake rocker arm assembly 3. The brake rocker arm assembly 3 drives the brake master cylinder 2 to move, realizing hydraulic braking.

[0032] As can be seen, this application provides a novel forklift driving brake control linkage mechanism that can achieve segmented braking. When the brake pedal 42 is pressed, the power is first cut off and the motor brakes. During this segment, the braking torque of the motor can be controlled by the signal provided by the controller to achieve micro-movement of the vehicle. When the brake pedal 42 is pressed again, hydraulic braking is achieved. In other words, in this solution, the angle signal of the pedal 42 can be output in real time. When the brake master cylinder 2 is not activated, the power and motor braking can be cut off to achieve the micro-movement function of the vehicle, thereby realizing the micro-movement controllability and operational safety of the forklift.

[0033] Furthermore, preferably, the forklift travel brake control linkage mechanism also includes the aforementioned controller, and the controller is communicatively connected to the brake light switch 6 and the brake pedal angle sensor 7 respectively. In addition, the controller is also communicatively connected to the motor in the forklift, and can control the magnitude of the motor braking torque through the signal provided by the controller.

[0034] It should be noted that the forklift's driving brake control linkage mechanism may not include a controller. Instead, the brake pedal angle sensor 7, brake light switch 6, etc., can be connected to the forklift's own main controller. The specific choice depends on the actual needs.

[0035] In one embodiment of this application, preferably, as shown below, Figure 2 and Figure 3 As shown, the brake pedal angle sensor 7 includes a fixed part and a rotating part; wherein, the fixed part is fixed to the base assembly 1, and the rotating part is rotatably connected to the fixed part, the rotating part is fixedly connected to the brake pedal assembly 4, and the brake pedal assembly 4 can synchronously drive the rotating part to rotate relative to the fixed part.

[0036] As can be seen from the structure described above, when the pedal 42 of the brake pedal assembly 4 is pressed, the entire pedal 42 assembly rotates relative to the base assembly 1, which in turn drives the rotating part of the brake pedal angle sensor 7 to rotate relative to its fixed part. The rotation angle of the pedal 42 can be detected in real time by the brake pedal angle sensor 7, and the magnitude of the motor braking torque can be controlled by the signal provided by the controller to achieve micro-movement of the vehicle.

[0037] It should be noted that the structure of the brake pedal angle sensor 7 is not limited to the above. A non-contact angle sensor can also be used, that is, there is no need to connect the brake pedal angle sensor 7 to the pedal 42 assembly, etc. The specific choice depends on the actual needs.

[0038] In one embodiment of this application, preferably, as shown below, Figure 2 and Figure 3 As shown, the brake rocker arm assembly 3 includes a first mounting shaft 31, a first adapter 32, a mating part 33, a mounting base 34, a pin 35, and a mating part 33; wherein, the first mounting shaft 31 is rotatably connected to the base assembly 1; The first adapter 32 and the mating part 33 are both fixed to the outer wall of the first mounting shaft 31, and the mating part 33 is connected to the first adapter 32. The pedal 42 assembly can rotate relative to the mating part 33 so that the pedal 42 assembly can contact or separate from the mating part 33. The moving part 22 of the brake master cylinder 2 is fixedly connected to the mounting base 34, and the mounting base 34 and the first adapter 32 are rotatably connected by a pin 35. As can be seen from the structure described above, the first mounting shaft 31 is used to achieve a rotational engagement with the bushing 103 of the base assembly 1 described below, thereby realizing the rotational connection between the brake rocker arm assembly 3 and the base assembly 1; the mating part 33 plays the role of engaging with the bearing 44. That is to say, when the brake pedal 42 is pressed, the bearing 44 can contact the mating part 33, and as the pedal is pressed further, the bearing 44 pushes the mating part 33 to rotate, thereby causing the connecting part to drive the mounting base 34 to rotate, thereby forcing the moving part 22 of the brake master cylinder 2 to move and perform the braking action.

[0039] In one embodiment of this application, preferably, as shown below, Figure 2 and Figure 3 As shown, the pedal 42 assembly includes a second mounting shaft 41, a pedal 42, a support shaft 43, and a bearing 44; wherein, along the axial direction of the first mounting shaft 31, the second mounting shaft 41 is disposed on the side of the first mounting shaft 31 and is rotatably connected to both the first mounting shaft 31 and the base assembly 1, and the second mounting shaft 41 is rotatable relative to the first mounting shaft 31 and the base assembly 1. The rotating part of the brake pedal angle sensor 7 is fixedly connected to the second mounting shaft 41 and can rotate synchronously with the second mounting shaft 41; the pedal 42 is fixed to the second mounting shaft 41; the support shaft 43 is fixed to the side of the pedal 42 near the brake rocker arm assembly 3, and the fixed part of the bearing 44 is fixed to the support shaft 43, and the rotating part of the bearing 44 can contact or separate from the mating part 33. As can be seen from the structure described above, the second mounting shaft 41 is rotatably connected to the first mounting shaft 31 and the base assembly 1. The first mounting shaft 31 and the base assembly 1 support the second mounting shaft 41, making the second mounting shaft 41 more stable. The support part supports the shaft 43, and the bearing 44 cooperates with the mating part 33.

[0040] Furthermore, preferably, the pedal 42 and the second mounting shaft 41 can be connected by welding, and the support shaft 43 and the pedal 42 can be connected by welding. Of course, this is not the only option.

[0041] Furthermore, preferably, one end of the second mounting shaft 41 is rotatably connected to the first mounting shaft 31, the other end of the second mounting shaft 41 is rotatably connected to the bushing 103 in the base assembly 1, and the other end of the second mounting shaft 41 passes through the bushing 103 of the base assembly 1 and is connected to the rotating part of the brake pedal angle sensor 7.

[0042] It should be noted that: one of the first mounting shaft 31 and the second mounting shaft 41 may be provided with a shaft hole, and the other may be provided with a mating shaft part, which is rotatably inserted into the shaft hole. Of course, it is not limited to this. The two can also be rotatably connected by a bushing 103, etc., so that the first mounting shaft 31 and the second mounting shaft 41 can rotate freely on their own without causing the other to rotate.

[0043] In one embodiment of this application, preferably, as shown below, Figure 2 and Figure 3 As shown, the base assembly 1 includes a base plate 101, multiple support plates 102, and multiple bushings 103; wherein, the support plates 102 are fixed on the base plate 101, and the support plates 102 form mounting grooves, and the bushings 103 are fixed in the mounting grooves; a first mounting shaft 31 is rotatably connected to at least one bushing 103 in one of the mounting grooves, and a second mounting shaft 41 is rotatably connected to at least another bushing 103 in one of the mounting grooves; the fixing part of the brake pedal angle sensor 7 is fixed to the base plate 101. As can be seen from the structure described above, multiple support plates 102 support the corresponding bushings 103 and the aforementioned first mounting shaft 31 and second mounting shaft 41, thereby supporting the pedal 42 assembly and the rocker arm assembly.

[0044] Furthermore, preferably, both the base plate 101 and the support plate 102 are arranged in a vertical direction and are perpendicular to each other to meet the usage requirements. Of course, this is not the only option.

[0045] In one embodiment of this application, preferably, as shown below, Figures 3 to 6 As shown, the forklift travel brake control linkage mechanism also includes a torsion spring 13, which is sleeved on the outside of the second mounting shaft 41. One end of the torsion spring 13 abuts against the base plate 101, and the other end of the torsion spring 13 abuts against the auxiliary limiting groove 421 of the pedal 42. As can be seen from the structure described above, the torsion spring 13 can be used to reset the pedal assembly 42.

[0046] Furthermore, preferably, the auxiliary limiting groove 421 is formed on the side of the pedal 42 near the base plate 101, and the auxiliary limiting groove 421 is L-shaped. Of course, it is not limited to this.

[0047] In one embodiment of this application, preferably, as shown below, Figure 2 and Figure 3 As shown, the forklift travel brake control linkage mechanism also includes a first adapter component 8, a brake light switch adjustment component 5, and a brake light switch 6; wherein, the first adapter component 8 is fixed to the brake pedal assembly 4, the brake light switch adjustment component 5 is fixed to the first adapter component 8, and the brake light switch adjustment component 5 can rotate with the brake pedal assembly 4, thereby being able to contact or separate from the brake light switch 6 to trigger the brake light switch 6 to operate.

[0048] As described above, when the brake pedal 42 of the brake pedal assembly 4 is pressed, the brake pedal assembly 4 rotates. At this time, the brake pedal assembly 4 is not in contact with the brake rocker arm assembly 3, and the brake master cylinder 2 does not operate. The brake light switch adjustment component 5, as described below, disengages from the brake light switch 6 under the action of the brake pedal assembly 4, and the brake light indicates braking. The brake pedal angle sensor 7 outputs an angle signal to the controller to realize power cut-off and motor braking. The controller can control the magnitude of the motor braking torque based on the detected angle data, that is, to achieve micro-movement of the vehicle. When the brake pedal 42 is pressed again, the brake pedal assembly 4 contacts the brake rocker arm assembly 3, and the brake rocker arm assembly 3 drives the brake master cylinder 2 to operate, realizing hydraulic braking.

[0049] Furthermore, by providing the first adapter 8, the brake light switch adjustment component 5 at a specific position can be connected to the brake pedal assembly 4, thereby allowing the brake light switch adjustment component 5 to rotate as the brake pedal assembly 4 rotates, thus causing it to contact or separate from the brake light switch 6.

[0050] In one embodiment of this application, preferably, as shown below, Figure 2 and Figure 3 As shown, the brake light switch adjustment component 5 is a first adjustment bolt, which is equipped with an adjustment nut 9. The first adjustment bolt is fixed to the first adapter component 8 by the adjustment nut 9, and the position of the first adjustment bolt can be adjusted in the direction toward or away from the brake light switch 6. As can be seen from the structure described above, by loosening the adjusting nut 9, the position of the first adjusting bolt relative to the brake light switch 6 can be adjusted. After the adjustment is completed, the adjusting nut 9 can be tightened to achieve compatibility with brake switches in different installation positions or different models of brake switches, thus meeting different usage requirements.

[0051] Furthermore, preferably, the first adapter member 8 has a first mounting through hole, and the first adjusting bolt is movably inserted into this first mounting through hole.

[0052] Of course, the brake light switch adjustment component 5 is not limited to the structure of the bolt mentioned above. Other structures, such as rods, can also be used. Furthermore, the brake light switch adjustment component 5 can be directly fixed to the first support component and its position cannot be adjusted. The specific choice depends on the actual needs.

[0053] In one embodiment of this application, preferably, as shown below, Figure 2 As shown, the first adapter component 8 and the brake pedal assembly 4 are detachably connected by the first fastening component 10, such as screws or bolts. This is a detachable connection method, which is convenient for installation and disassembly. Of course, it is not limited to this. The first adapter component 8 and the brake pedal assembly 4 can also adopt a detachable connection method such as a snap-fit ​​or a non-detachable connection method such as welding. In one embodiment of this application, preferably, as shown below, Figure 2 and Figure 3 As shown, the base assembly 1 also includes a first adapter plate 104 and a second adapter plate 105; wherein, the first adapter plate 104 is fixedly connected to one of the support plates 102; the second adapter plate 105 is detachably connected to the first adapter plate 104 through a second fastening member 15, and the second adapter plate 105 forms a positioning groove, the brake light switch 6 forms a protrusion sensing part 61, and the protrusion sensing part 61 is located in the mounting groove; the brake light switch adjustment member 5 is fixed to the first adapter plate 104.

[0054] As can be seen from the structure described above, the first adapter plate 104 is mainly used to install and support the brake pedal adjusting bolt 11, and the second adapter plate 105 is mainly used to install and support the protruding sensing part 61 of the brake light switch 6. Moreover, a mounting groove is provided on the second adapter plate 105, and the protruding sensing part 61 is located in the mounting groove, which is more stable and firm. In addition, the second adapter plate 105 and the first adapter plate 104 are detachably connected by a second fastening member 15, such as screws or bolts, which is a detachable connection method, which is convenient for installation and disassembly, and especially convenient for later maintenance.

[0055] Furthermore, preferably, the first adapter plate 104 is an L-shaped plate to meet the usage requirements.

[0056] In one embodiment of this application, preferably, as shown below, Figure 1 and Figure 2 As shown, the forklift travel brake control linkage mechanism also includes a brake pedal adjusting bolt 11 and a brake pedal adjusting nut 12; wherein, the brake pedal adjusting bolt 11 is fixed to the base assembly 1 by the brake pedal adjusting nut 12. The pedal 42 assembly has an extended mating portion 45 on the side of the pedal 42. The brake pedal adjusting bolt 11 can be adjusted in a direction toward or away from the extended mating portion 45 so that the pedal 42 assembly can rotate relative to the base assembly 1, thereby changing the assembly clearance between the pedal 42 assembly and the brake rocker arm assembly 3. As can be seen from the structure described above, by loosening the brake pedal adjusting nut 12, the position of the brake pedal adjusting bolt 11 relative to the extended mating part 45 can be adjusted. After the adjustment is completed, the brake pedal adjusting nut 12 can be tightened, thereby enabling it to be used with brake switches in different installation positions or with different models of brake switches, thus meeting different usage requirements.

[0057] Furthermore, preferably, the first adapter plate 104 of the base assembly 1 is formed with a second mounting through hole, and the brake pedal adjusting bolt 11 is movably inserted into this second mounting through hole.

[0058] In one embodiment of this application, preferably, as shown below, Figure 2 As shown, the forklift travel brake control linkage mechanism also includes a fixing frame 14, which is fixed to the base assembly 1. The fixing body 21 of the brake master cylinder 2 is fixed to the fixing frame 14, making the body 21 of the brake master cylinder 2 more stable and ensuring that the body 21 of the brake master cylinder 2 does not move, and only the moving part 22 of the stop master cylinder moves in the vertical direction, thereby completing the braking or releasing the braking.

[0059] Furthermore, preferably, the fixing frame 14 is a U-shaped frame with the opening facing upwards.

[0060] Furthermore, preferably, the master brake pump 2 can be a hydraulic cylinder structure; however, it is not limited to this and can also be other types of equipment.

[0061] In one embodiment of this application, preferably, as shown below, Figure 1 and Figure 2 As shown, vertically, the brake master cylinder 2 is positioned below the brake rocker arm assembly 3; horizontally, the brake master cylinder 2 and brake rocker arm assembly 3 are positioned on one side of the brake pedal 42, while the brake light switch 6 and brake pedal angle sensor 7 are positioned on the opposite side of the brake pedal assembly 42. It is evident that the various structures arranged in the above orientation meet the usage requirements and are rationally laid out without interference. Of course, this is not the only option; the various structures can be arranged according to actual needs. The embodiments of this application also provide a forklift, including the forklift travel brake control linkage mechanism described in any of the above embodiments, and thus have all the beneficial technical effects of the forklift travel brake control linkage mechanism, which will not be repeated here.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A forklift travel brake control linkage mechanism, characterized in that, include: The system comprises a base assembly, a brake master cylinder, a brake rocker arm assembly, a brake pedal assembly, and a brake pedal angle sensor; wherein the brake master cylinder is connected to the brake rocker arm assembly; the brake rocker arm assembly and the brake pedal assembly are rotatably connected to the base assembly, and the brake pedal assembly is capable of rotating relative to the base assembly to contact the brake rocker arm assembly, and can drive the brake rocker arm assembly to rotate synchronously relative to the base assembly to drive the brake master cylinder; the brake pedal angle sensor is fixed to the base assembly and is used to detect the rotation angle of the brake pedal assembly.

2. The forklift travel brake control linkage mechanism according to claim 1, characterized in that, The brake pedal angle sensor includes a fixed part and a rotating part; wherein, the fixed part is fixed to the base assembly, and the rotating part is rotatably connected to the fixed part, the rotating part is fixedly connected to the brake pedal assembly, and the brake pedal assembly can synchronously drive the rotating part to rotate relative to the fixed part.

3. The forklift travel brake control linkage mechanism according to claim 2, characterized in that, The brake rocker arm assembly includes a first mounting shaft, a first adapter, a mating part, a mounting base, a pin, and a mating part; wherein the first mounting shaft is rotatably connected to the base assembly; Both the first adapter and the mating part are fixed to the outer wall of the first mounting shaft, and the mating part is connected to the first adapter. The pedal assembly can rotate relative to the mating part so that the pedal assembly can contact or separate from the mating part. The moving part of the brake master cylinder is fixedly connected to the mounting base, and the mounting base is rotatably connected to the first adapter through the pin.

4. The forklift travel brake control linkage mechanism according to claim 3, characterized in that, The pedal assembly includes a second mounting shaft, a pedal, a support shaft, and a bearing; wherein, along the axial direction of the first mounting shaft, the second mounting shaft is disposed on the side of the first mounting shaft and is rotatably connected to both the first mounting shaft and the base assembly, and the second mounting shaft is rotatable relative to the first mounting shaft and the base assembly; The rotating part of the brake pedal angle sensor is fixedly connected to the second mounting shaft and can rotate synchronously with the second mounting shaft; the pedal is fixed to the second mounting shaft; the support shaft is fixed to the side of the pedal near the brake rocker arm assembly, and the fixed part of the bearing is fixed to the support shaft, and the rotating part of the bearing can contact or separate from the mating part.

5. The forklift travel brake control linkage mechanism according to claim 4, characterized in that, The base assembly includes a base plate, multiple support plates, and multiple bushings; wherein, the support plates are fixed to the base plate and the support plates form mounting grooves, and the bushings are fixed in the mounting grooves; the first mounting shaft is rotatably connected to at least one bushing in the mounting grooves, and the second mounting shaft is rotatably connected to at least another bushing in the mounting grooves; the fixing part of the brake pedal angle sensor is fixed to the base plate.

6. The forklift travel brake control linkage mechanism according to claim 5, characterized in that, The forklift travel brake operating linkage mechanism also includes a torsion spring, which is sleeved on the outside of the second mounting shaft, with one end of the torsion spring abutting against the base plate and the other end abutting against the auxiliary limiting groove of the pedal; and / or Both the base plate and the support plate are arranged vertically and are perpendicular to each other.

7. The forklift travel brake control linkage mechanism according to claim 5, characterized in that, The forklift travel brake control linkage mechanism further includes a first adapter component, a brake light switch adjustment component, and a brake light switch; wherein, the first adapter component is fixed to the brake pedal assembly, the brake light switch adjustment component is fixed to the first adapter component, and the brake light switch adjustment component can rotate with the brake pedal assembly, thereby being able to contact or separate from the brake light switch to trigger the brake light switch to operate.

8. The forklift travel brake control linkage mechanism according to claim 7, characterized in that, The brake light switch adjusting component is a first adjusting bolt, which is equipped with an adjusting nut. The first adjusting bolt is fixed to the first adapter component by the adjusting nut, and its position can be adjusted in a direction toward or away from the brake light switch; and / or The first adapter component is detachably connected to the brake pedal assembly via a first fastening component; and / or The base assembly further includes a first adapter plate and a second adapter plate; wherein the first adapter plate is fixedly connected to one of the support plates; the second adapter plate is detachably connected to the first adapter plate via a second fastening member, and the second adapter plate forms a positioning groove, the brake light switch forms a raised sensing part, and the raised sensing part is located in the mounting groove; the brake light switch adjusting member is fixed to the first adapter plate; and / or Vertically, the master cylinder is located below the brake rocker arm assembly; horizontally, the master cylinder and the brake rocker arm assembly are located on one side of the brake pedal, and the brake light switch and the brake pedal angle sensor are located on the opposite side of the brake pedal assembly.

9. The forklift travel brake control linkage mechanism according to any one of claims 1 to 8, characterized in that, The forklift travel brake control linkage mechanism also includes a brake pedal adjusting bolt and a brake pedal adjusting nut; wherein, the brake pedal adjusting bolt is fixed to the base assembly by the brake pedal adjusting nut; The pedal assembly has an extended mating portion formed on its pedal side. The brake pedal adjusting bolt can be adjusted in a direction toward or away from the extended mating portion, so that the pedal assembly can rotate relative to the base assembly, thereby changing the assembly clearance with the brake rocker arm assembly; and / or The forklift travel brake operating linkage mechanism further includes a fixing frame, which is fixed to the base assembly, and the fixing body of the brake master cylinder is fixed to the fixing frame; and / or The forklift driving brake control linkage mechanism also includes a controller, and the controller is communicatively connected to the brake pedal angle sensor.

10. A forklift, characterized in that, The forklift travel brake control linkage mechanism includes any one of claims 1 to 9.

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