Turnover sensing pedal suitable for industrial vehicle, double-pedal driving device and vehicle

Abstract

The invention relates to the field of automatic mechanical equipment, in particular to structure optimization design and space optimization design of an industrial vehicle pedal area. According to the technical scheme, the overturning induction pedal suitable for the industrial vehicle comprises a fixing frame and a plate body installed on the fixing frame and further comprises a driving device and a transmission frame driven by the driving device to drive the plate body to overturn relative to the fixing frame. The transmission frame is rotationally connected with the fixing frame and the plate body. The invention aims to provide a turnover sensing pedal suitable for an industrial vehicle, a double-pedal driving device and a vehicle. According to the overturning induction pedal, the space in a cab can be optimized, the size of a vehicle in the length direction is reduced, and the universality of the industrial vehicle in a narrow roadway is improved; the leg comfort of the operator is improved; and the visual field space of the operator is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic mechanical equipment, in particular to the structural optimization design and space optimization design of the pedal area of an industrial vehicle. BACKGROUND

[0002] Industrial vehicles refer to power-driven motor vehicles used to carry, push, tow, lift, stack or store various cargos. Common industrial vehicles include forklifts, side forklifts, towing vehicles, carrying vehicles, stackers and the like.

[0003] A Chinese patent document with publication number CN202420740374.6 discloses a multi-material loading and unloading forklift. The forklift includes a vehicle body, a fork, a walking device and a steering wheel. When in use, an operator enters the driving position of the forklift and controls the driving of the vehicle using the steering wheel, throttle / switch, brake and other devices. It should be noted that industrial vehicles are different from ordinary vehicles. They need to stack and carry heavy objects in a specific industrial environment, so the safety of the industrial vehicle is very important. Therefore, in order to prevent misoperation, an induction pedal is provided on the industrial vehicle.

[0004] The induction pedal is different from the ordinary pedal of a vehicle, which generally refers to the throttle / switch pedal or brake pedal. The size of the pedal is small, and a control signal for driving the vehicle forward or braking is generated when the user steps on it. The induction pedal is larger in size and is often laid out in an area for sensing whether the operator is in place. In actual application, the purpose of setting the induction pedal is to increase safety. A sensor, such as a pressure sensor, is often provided on the induction pedal to allow the vehicle to be powered on only when the operator is in the correct position. This avoids misoperation when the operator has not prepared to drive, such as when the operator has not completely entered the driving cabin and only touches the operation switch on the vehicle while entering or exiting the driving cabin. Further, different numbers of induction pedals are provided according to different vehicle models and different driving postures of the driver. Commonly, double induction pedals, such as a standing posture induction pedal and a sitting posture induction pedal, are provided.

[0005] Since industrial vehicles often rely on battery boxes as a power source, the battery box needs to be replaced when the power is depleted. During the replacement of the battery box, the battery box will collide with the induction pedal, especially the sitting posture induction pedal, when entering or exiting. At this time, the space of the driving cabin must be enlarged to provide sufficient movement space for the battery box. Such space processing makes the length of the vehicle longer, and the turning radius also becomes longer, affecting the flexibility of the vehicle body and the adaptability in narrow lanes. On the other hand, when the operator controls the vehicle in a standing position, the lower leg part will collide with the sitting posture pedal, which not only affects the comfort and safety of the operator but also makes the operator unable to move forward, affecting the field of vision. SUMMARY

[0006] The application aims to provide a flip sensing pedal, a double pedal driving device and a vehicle suitable for industrial vehicles. The flip sensing pedal can optimize the space in the driving cabin, reduce the length of the vehicle, improve the versatility of the industrial vehicle in narrow lanes, increase the leg comfort of the operator and optimize the field of view of the operator.

[0007] The application is achieved by the following technical scheme: a flip sensing pedal suitable for industrial vehicles, comprising a fixed frame and a plate body mounted on the fixed frame, a driving device and a transmission frame driving the plate body to flip relative to the fixed frame under the driving of the driving device, the transmission frame being rotationally connected with the fixed frame and the plate body respectively.

[0008] As a preferred embodiment of the application, the transmission frame comprises a proximal rod and a distal rod, the two ends of the proximal rod and the distal rod being rotationally connected with the plate body and the fixed frame respectively.

[0009] As a preferred embodiment of the application, the fixed frame comprises a horizontal frame extending in the horizontal direction and a back frame connected with the horizontal frame, the proximal rod being closer to the back frame in the horizontal direction than the distal rod, the proximal rod comprising a folding rod connected with the fixed frame and a proximal folding rod connected with the plate body, the folding rod and the proximal folding rod extending in different directions, the proximal folding rod being used to avoid the distal rod when the plate body is in a folded state.

[0010] As a preferred embodiment of the application, the folding rod is parallel to the back frame when the plate body is in a folded state.

[0011] As a preferred embodiment of the application, the distal rod comprises an outward expanding rod connected with the fixed frame and a distal folding rod connected with the plate body, the outward expanding rod and the distal folding rod extending in different directions, the outward expanding rod being configured to gradually reduce the horizontal distance between the outward expanding rod and the back frame in the height upward direction when the plate body is in a folded state.

[0012] As a preferred embodiment of the application, the fixed frame further comprises a seat frame, the seat frame being connected with the back frame and the horizontal frame, the folding rod and the outward expanding rod being connected to the seat frame.

[0013] As a preferred embodiment of the application, the driving device comprises a cylinder seat and a piston rod, the piston rod being rotationally connected to the back of the plate body, the cylinder seat being connected to the seat frame.

[0014] As a preferred embodiment of the application, the plate body comprises a main part and an outward protruding part connected with the main part and outward protruding to the front of the plate body, a power output component of the driving device being connected to the outward protruding part.

[0015] As a preferred embodiment of the present application, a folding sensing device for sensing the folding of the plate body is arranged on the fixed frame, and the driving device is braked when the folding sensing device senses that the plate body reaches a designated folding position.

[0016] As a preferred embodiment of the present application, a tightening device is further arranged for adjusting the mounting tightness between the transmission frame and the fixed frame and / or between the transmission frame and the plate body.

[0017] As a preferred embodiment of the present application, the tightening device comprises a lock sleeve passing through the plate body or the fixed frame, a lock rod screwed with the lock sleeve, and a contact cap mounted on the lock rod, the lock sleeve passing through the transmission frame, and the contact cap being used to contact the surface of the transmission frame.

[0018] The double-pedal driving device comprises the folding sensing pedal suitable for the industrial vehicle, and further comprises a standing pedal, the mounting position of the standing pedal being lower than the mounting position of the plate body in the height direction.

[0019] As a preferred embodiment of the present application, a pressure sensor is arranged on the standing pedal and the plate body.

[0020] The vehicle comprises a vehicle body, a walking device and a fork mounted on the vehicle body, a cab is arranged on the vehicle body, a seat and a control device are arranged in the cab, and the cab is characterized in that the double-pedal driving device as claimed in the present application is arranged in the cab.

[0021] In summary, the present application has the following advantages: 1. The plate body can be freely switched between the open state and the folded state. When the user is in a sitting position for control, the plate body is in the open state, and the user can normally drive the vehicle in a sitting position. When the user needs to control in a standing position, the plate body is in the folded state, and the user has more leg space. The user can stand in a more forward position in the cab, thereby obtaining a smaller observation dead angle, a better observation field of view, and improved safety.

[0022] 2. When the user needs to replace the vehicle battery, the plate body is also in the folded state, and the user can more conveniently take out the battery box from the battery compartment without colliding with the plate body.

[0023] 3. The length of the vehicle in the direction can be controlled, a smaller turning radius is obtained, and the vehicle is better adapted to narrow lane operation.

[0024] 4. The seat frame can improve the structural strength of the back frame and the transverse frame, and provide mounting space for the cylinder seat.

[0025] 5. The folding rod can be closer to and fit the back frame when the panel is folded, thus further saving space occupied by the panel in the vehicle's length direction when folded.

[0026] 6. The inclined design of the outward-expanding bar allows the far-fetching bar to fit snugly against the closing bar.

[0027] 7. The outward-extending rod provides clearance, allowing the lower part of the board to be occupied, thus enabling the board to achieve a closer vertical flip angle. This provides users with more legroom and a better field of vision.

[0028] 8. The sensor is used to detect the approach of the board, first decelerate and then brake, or brake directly, thereby protecting the board and avoiding excessive folding. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the flip-sensor pedal in the open state of Embodiment 1; Figure 2 yes Figure 1 Side view; Figure 3 This is a schematic diagram of the flip-sensing pedal in the folded state of Embodiment 1; Figure 4 yes Figure 3 Side view; Figure 5 This is a cross-sectional view of the flip-sensor pedal; Figure 6 yes Figure 5 A magnified view of the details at point A; Figure 7 This is a schematic diagram of the vehicle as a whole.

[0030] In the picture: 1. Fixed frame, 11. Back frame, 12. Horizontal frame, 13. Seat frame, 2. Plate body, 21. Main part, 22. Outward protrusion, 23. Lower connecting frame, 3. Drive unit, 31. Cylinder seat, 32. Piston rod, 4. Transmission frame, 41. Proximity rod, 411. Retracting rod, 412. Proximity folding rod, 42. Distance rod, 421. Outward expansion rod, 422. Distance folding rod, 51. Sensor frame, 52. Sensor, 6. Adjusting component, 61. Locking sleeve, 62. Locking rod, 63. Abutment cap, 91. Vehicle body, 92. Traveling device, 93. Forks, 94. Cabin, 95. Control device, 96. Seat, 97. Standing footboard. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The specific embodiments are only illustrative of the present application and are not intended to limit the present application. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the present specification, and the modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

[0033] The following description provides examples, and is not intended to limit the scope, applicability or examples set forth in the claims. Changes can be made in the function and arrangement of elements described without departing from the scope of the description. Various examples can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different than described, and various steps can be added, omitted, or combined. Also, features described with respect to some examples can be combined in other examples.

[0034] As shown in Embodiment 1, Figure 7 A vehicle, specifically an industrial vehicle, includes a vehicle body 91, one end of which is connected to a fork 93 for accessing goods, and a bottom of the vehicle body 91 is provided with a traveling device 92, such as a drive wheel, a traveling wheel, a steering wheel. A driver's cabin 94 is provided on the vehicle body 91, and a seat 96 and a control device 95 are provided in the driver's cabin 94. The control device 95 can be a multifunctional steering wheel, which has a steering function and can be provided with electronic buttons for controlling functions such as vehicle fork control, vehicle traveling, mode switching, etc.

[0035] A double-pedal driving device is provided in the driver's cabin 94, specifically including a standing pedal 97 and a sitting pedal. The standing pedal 97 and the sitting pedal are both provided with sensing devices, such as pressure sensors, for sensing whether the driver has been correctly positioned. When the driver is in a standing position, his / her feet stand on the standing pedal 97, which is captured by the pressure sensor of the standing pedal 97. When the driver is in a sitting position, he / she sits on the seat 96, and his / her feet naturally rest on the sitting pedal, which is captured by the pressure sensor of the sitting pedal.

[0036] If the pressure sensor successfully captures, the vehicle as a whole is powered on, and the control device 95 is turned on, otherwise, the control device 95 is turned off. Further, a sensor is also provided on the steering wheel of the control device 95, which captures the user's hands when the user holds the steering wheel. The control device 95 is turned on only when the pressure sensors of the standing pedal or the sitting pedal and the sensor of the steering wheel all confirm, so as to avoid the vehicle from moving, turning, or moving the fork due to misoperation when the user is not ready, thereby improving the safety of the vehicle use.

[0037] The main innovation of the present patent application lies in the structural improvement of the sitting pedal. As shown in Embodiment 1, Figures 1-6 Figures 1-6 ​The specific structure diagram of the flip sensing pedal in the sitting position is shown in the figure. Figure 1 and Figure 2 is a schematic view thereof in the folded state, Figure 3 and Figure 4 is a schematic view thereof in the folded state.

[0038] The plate body 2 in this embodiment can be freely switched between the open state and the folded state. The plate body 2 can be stopped at any angle, and the user can adjust the angle when sitting to place both feet in a comfortable position. When the user is in a sitting position, the plate body 2 is in an open state, and the user normally drives the vehicle in a sitting position. When the user needs to operate in a standing position, the plate body 2 is in a folded state, and the user has more legroom. The user can stand in a more forward position in the cockpit 94, thereby obtaining a smaller observation dead angle, a better observation field of view, and improved safety. When the user needs to replace the vehicle battery, the plate body 2 is also in a folded state, and the user can more conveniently remove the battery box from the battery compartment without colliding with the plate body 2. In this way, the cockpit 94 does not need to be made very long, thereby making the overall vehicle length controllable, obtaining a smaller turning radius, and better adapting to narrow alley operations.

[0039] As shown in Figure 1 and Figure 2 , the flip sensing pedal includes four main component modules: a fixed frame 1, a plate body 2, a driving device 3, and a transmission frame 4. The fixed frame 1 is directly connected to the vehicle body 91 and can be regarded as a fixed part; the plate body 2 is the part that the user's feet step on, which is flipped relative to the fixed frame 1 under the action of the driving device 3 and the transmission frame 4.

[0040] As shown in Figure 2 and Figure 4 , the fixed frame 1 is L-shaped and includes a horizontal frame 12 extending approximately horizontally and a back frame 11 extending approximately vertically, wherein the horizontal frame 12 and the back frame 11 are jointly connected to a seat frame 13. The driving device 3 can adopt common driving structures in existing technologies such as motors, air cylinders, and oil cylinders. In this embodiment, an electric cylinder is adopted, which is more convenient to install and reduces oil pipe connections. The cylinder seat 31 can specifically include two cylinder seat plates, and the cylinder seat 31 is hinged in the space between the two cylinder seat plates. Therefore, the seat frame 13 can improve the structural strength of the back frame 11 and the horizontal frame 12 on the one hand and provide installation space for the cylinder seat 31 on the other hand. The piston rod 32 of the oil cylinder is installed on the lower surface of the plate body 2. The transmission frame 4 can adopt various transmission structures such as multiple connecting rods and X-shaped cross frames, as long as it can match the flipping track of the plate body 2 under the power output of the driving device 3. In this embodiment, a double-curved-rod scheme is used for the transmission frame 4.

[0041] Specifically, as shown in Figure 2 andFigure 4 As shown, the hyperbolic levers are two sets, arranged on both sides of the bottom surface of the plate body 2. Each set of hyperbolic levers has the same structure, and each set contains a near lever 41 and a far lever 42. The near lever 41 and the far lever 42 are both hinged at the upper end to the bottom surface of the plate body 2 and hinged at the lower end to the seat frame 13.

[0042] In this embodiment, the near lever 41 and the far lever 42 are both designed with a bend. Specifically, the near lever 41 contains a folding lever 411 and a near bending lever 412 arranged in sequence, the latter is connected to the plate body 2 at the upper end, and the former is connected to the seat frame 13 at the lower end. As shown in Figure 2 and Figure 4 As shown, in the use state of the plate body 2, the near bending lever 412 is almost horizontal, and the folding lever 411 gradually tilts in the direction of approaching the backrest 11 in the downward direction. In the folding state of the plate body 2, the folding lever 411 is almost vertical and parallel to and fits the backrest 11.

[0043] Such a setting mode can make the folding lever 411 closer to and fit the backrest 11 in the folded state of the plate body 2, thereby further saving the space occupied by the plate body 2 in the length direction of the vehicle in the folded state.

[0044] The far lever 42 is also designed with a bend. Specifically, the far lever 42 contains an outward expansion lever 421 and a far bending lever 422 arranged in sequence, the latter is connected to the plate body 2 at the upper end, and the former is connected to the seat frame 13 at the lower end. In the folded state of the plate body 2, the far bending lever 422 is almost vertical and close to the folding lever 411, and the outward expansion lever 421 tilts away from the backrest 11 from top to bottom.

[0045] Such a setting mode has two effects: on the one hand, the far bending lever 422 can closely fit the folding lever 411; on the other hand, there is a space for the outward expansion lever 421 to avoid, so that the lower part of the plate body 2 can be occupied, thereby making the plate body 2 obtain a folding angle closer to vertical. Both of these aspects can further save the space occupied by the plate body 2 in the length direction of the vehicle in the folded state, thereby allowing the user to obtain a larger leg space and a better observation field of view.

[0046] As shown in Figure 1 The present embodiment also contains sensing control for the folding state of the plate body 2. A sensor 51 is arranged on the backrest 11, and a sensor 52 is arranged on the plate body 2. The sensor 52 can adopt a proximity switch or an optical sensor in the prior art, which is used to sense the approach of the plate body 2. When the plate body 2 reaches a designated position and is captured by the sensor 52, it is considered that the plate body 2 is folded in place, and then the vehicle controller controls the driving device 3 to act, such as deceleration and then braking, or direct braking. Thus, the plate body 2 is protected from overfolding.

[0047] As shown in Figure 2 and Figure 3As shown, the plate 2 is not completely planar; it includes a main portion 21 and a protruding portion 22 located in its middle. The protruding portion 22 protrudes outward and upward, that is, towards the front of the plate 2, the side that the user's feet contact. Thus, the back of the protruding portion 22 naturally forms a concave cavity. The power output portion of the drive device 3, namely the piston rod 32, is connected to the concave cavity formed on the back of the protruding portion 22. This arrangement, on the one hand, increases the connection area between the piston rod 32 and the plate 2, making the force on the plate 2 more fluid; on the other hand, the concave cavity allows the plate 2 to be closer to the back frame 11, thereby further saving space in the length direction of the cockpit 94.

[0048] like Figure 5 and Figure 6 As shown, this embodiment also includes a tightening design for the transmission frame 4. The upper end of the transmission frame 4 is connected to the plate 2, and the lower end is connected to the fixed frame 1. Both connection points use tightening components 6. The principle and structure of the tightening components 6 are the same at both locations; the tightening component 6 at the upper end is used as an example here. A lower connecting frame 23 is provided below the step 21. The locking sleeve 61 is connected to the lower connecting frame 23 and passes through the lower connecting frame 23 and the transmission frame 4. The locking rod 62 is threadedly connected to the locking sleeve 61. The screw rod 62 is connected to an abutment cap 63, which abuts against the surface of the transmission frame 4. As the user tightens the screw rod 62, as... Figure 6 As shown, the contact cap 63 will move to the left, bringing the transmission frame 4 to a reasonable gap relative to the lower connecting frame 23. This design prevents the gap between the transmission frame 4 and the plate 2 and the fixed frame 1 from being too loose, thus avoiding shaking and instability during transmission. Furthermore, since the seating pedal includes a pressure sensor, it needs to be able to more stably sense the pressure on the user's legs. Stable, unshaking transmission of the transmission frame 4 also increases the accuracy of the pressure sensor readings.

Claims

1. A turnover induction pedal suitable for industrial vehicles, comprising a fixed frame (1) and a plate body (2) mounted on the fixed frame (1), characterized in that: Further comprising a driving device (3) and a transmission frame (4) driving the plate body (2) to rotate relative to the fixed frame (1) under the driving of the driving device (3), the transmission frame (4) is rotatably connected with the fixed frame (1) and the plate body (2) respectively.

2. The flip-in induction pedal suitable for use with an industrial vehicle of claim 1, wherein: The transmission frame (4) comprises a proximal rod (41) and a distal rod (42), the two ends of the proximal rod (41) and the distal rod (42) are rotatably connected with the plate body (2) and the fixed frame (1) respectively.

3. The flip-in induction pedal suitable for use with an industrial vehicle of claim 2, wherein: The fixed frame (1) comprises a horizontal frame (12) extending in the horizontal direction and a back frame (11) connected with the horizontal frame (12), the proximal rod (41) is closer to the back frame (11) in the horizontal direction than the distal rod (42), the proximal rod (41) comprises a folding rod (411) connected with the fixed frame (1) and a proximal folding rod (412) connected with the plate body (2), the extending directions of the folding rod (411) and the proximal folding rod (412) are different, the proximal folding rod (412) is used for avoiding the distal rod (42) when the plate body (2) is in the folded state.

4. The flip-in induction pedal suitable for use with an industrial vehicle of claim 3, wherein: The folding rod (411) is parallel to the back frame (11) when the plate body (2) is in the folded state.

5. The flip-in induction pedal suitable for use with an industrial vehicle as set forth in claim 3, wherein: The distal rod (42) comprises an outward expansion rod (421) connected with the fixed frame (1) and a distal folding rod (422) connected with the plate body (2), the extending directions of the outward expansion rod (421) and the distal folding rod (422) are different, the bending direction of the outward expansion rod (421) is configured to gradually reduce the horizontal distance between the outward expansion rod (421) and the back frame (11) in the height upward direction when the plate body (2) is in the folded state.

6. The flip-in induction pedal suitable for use with an industrial vehicle of claim 5, wherein: The fixed frame (1) further comprises a package seat frame (13), the package seat frame (13) is connected with the back frame (11) and the horizontal frame (12) together, the folding rod (411) and the outward expansion rod (421) are connected on the package seat frame (13).

7. The flip-in induction pedal suitable for use with an industrial vehicle of claim 6, wherein: The driving device (3) comprises a cylinder seat and a piston rod, the piston rod is rotatably connected to the back of the plate body (2), and the cylinder seat is connected to the package seat frame (13).

8. The flip-in induction pedal for use with an industrial vehicle of any of claims 1-7, wherein: The plate body (2) comprises a main part (21) and an outward protruding part (22) connected with the main part (21) and outward protruding to the front of the plate body (2), and a power output component of the driving device (3) is connected in the outward protruding part (22).

9. The flip-in induction pedal for use with an industrial vehicle of any of claims 1-7, wherein: A folding sensing device is arranged on the fixed frame (1) for sensing the plate body (2), and the folding sensing device is configured to brake the driving device (3) when the plate body (2) reaches a specified folding position.

10. The flip-in induction pedal for use with an industrial vehicle of any of claims 1-7, wherein: Further comprising a tightening member (6) for adjusting the mounting tightness between the transmission frame (4) and the fixed frame (1) and / or the transmission frame (4) and the plate body (2).

11. The flip-in induction pedal adapted for use with an industrial vehicle as set forth in claim 10, wherein: The tightening member (6) comprises a lock sleeve (61) penetrating through the plate body (2) or the fixing frame (1), a lock rod (62) in threaded connection with the lock sleeve (61) and a resisting cap (63) mounted on the lock rod (62), the lock sleeve (61) penetrating through the transmission frame (4), and the resisting cap (63) being used to resist the surface of the transmission frame (4).

12. Double pedal driving device, characterized in that: The turnover sensing pedal suitable for the industrial vehicle comprises a standing pedal (97), and the installation position of the standing pedal (97) is lower than the installation position of the plate body (2) in the height direction.

13. The dual pedal driving device of claim 12, wherein: Pressure sensors are arranged on the standing pedal (97) and the plate body (2).

14. Vehicle comprising a vehicle body (91), a running gear (92) and a load fork (93) mounted on the vehicle body (91), a driver's cab (94) being arranged on the vehicle body (92), a seat (96) and a control device (95) being provided in the driver's cab (94), characterized in that The double-pedal driving device of claim 12 or 13 is arranged in the cockpit (94).

15. The vehicle of claim 14, characterized in that: The control device (95) is provided with a confirmation sensor for sensing the position of the hand of the driver.

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