Upper and lower pedal structure and vehicle

Abstract

The utility model provides an up-and-down pedal structure and a vehicle, and relates to the technical field of vehicle manufacturing. The up-and-down pedal structure comprises a plurality of pedals, a pedal frame, a connecting rod, a driving piece and an auxiliary piece; the pedals at least comprise a first-stage pedal, a second-stage pedal and a third-stage pedal, the first-stage pedal is arranged at the top of the pedal frame, the second-stage pedal is hinged to the middle of the pedal frame, the third-stage pedal is hinged to the bottom of the pedal frame, and the connecting rod is in transmission connection with the second-stage pedal and the third-stage pedal; one end of the driving part is connected with the pedal frame, and the other end of the driving part is connected with the third-level pedal. The device is simple in structure, small in installation error, high in stability and flexible in operation, and does not shake to affect getting-on and getting-off of passengers.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to an upper and lower pedal structure and a vehicle. Background Art

[0002] Pedal devices are commonly found in fire trucks and engineering vehicles. Taking the independent crew compartment of a fire truck as an example, the floor of the independent crew compartment is high above the ground. When the door of the crew compartment is opened, personnel cannot directly step from the ground to the floor of the crew compartment. In order to facilitate firefighters getting on and off the vehicle, two or even more pedal devices can only be added to achieve this.

[0003] At present, multi-stage movable pedals are mostly connected by a connecting rod mechanism to form a flip-up design, with an anti-skid plate installed on the tread surface, and a driving cylinder synchronously drives the connecting rod mechanism to realize the expansion or retraction of the multi-stage pedals. The multi-stage pedals are generally built into the pedal component space, with a complex structure and great difficulty in assembly. In addition, the existing pedals are prone to shaking and lack stability whether in the expanded or retracted state because there is no locking structure. At the same time, the existing multi-stage pedals have a relatively large overall size and a complex structure, which can easily cause installation errors and result in the inability to rotate flexibly. Utility Model Content

[0004] The utility model aims to provide an upper and lower pedal structure and a vehicle, which have simple structure, small installation error, strong stability, flexible operation, and will not cause shaking to affect passengers getting on and off the vehicle.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In the first aspect, the utility model provides an upper and lower pedal structure, including multiple pedals, a pedal frame, a connecting rod, a driving member and an auxiliary member; the multiple pedals include at least a first-level pedal, a second-level pedal and a third-level pedal, the first-level pedal is arranged on the top of the pedal frame, the second-level pedal is hinged to the middle of the pedal frame, the third-level pedal is hinged to the bottom of the pedal frame, and the connecting rod is transmission-connected to the second-level pedal and the third-level pedal; one end of the driving member is connected to the pedal frame, and the other end is connected to the third-level pedal, and one end of the auxiliary member is connected to the pedal frame, and the other end is connected to the third-level pedal.

[0007] In an optional embodiment, the first-level pedal includes a first pedal and a first connecting member, the first pedal is fixed to the top surface of the first connecting member, and the first connecting member is fixedly connected to the top of the pedal frame.

[0008] In an optional embodiment, the secondary pedal includes a second pedal and a second connecting member, the second pedal is fixed to the top surface of the second connecting member, and the second connecting member is hinged to the pedal frame by bolts.

[0009] In an optional embodiment, a first slot is provided on the second connecting member, and a first protrusion is provided in the middle of the pedal frame. When the secondary pedal is in a horizontal state, the first slot and the first protrusion interfere with each other to prevent the secondary pedal from rotating in the direction of the tertiary pedal.

[0010] In an optional embodiment, the three-stage pedal includes a third pedal and a third connecting member, the third connecting member is arranged on the top surface of the third pedal, and the third connecting member is hinged to the bottom of the pedal frame.

[0011] In an optional embodiment, a second slot is provided on the third connecting member and a second protrusion is provided on the pedal frame. When the three-level pedal is in a horizontal state, the second slot and the second protrusion interfere with each other to prevent the three-level pedal from rotating in a direction away from the two-level pedal.

[0012] In an optional embodiment, a connecting seat is provided on the third pedal, one end of the driving member is connected to the connecting seat, and the other end is connected to the pedal frame.

[0013] In an optional embodiment, the auxiliary component includes a fixing seat and a gas spring, the fixing seat is arranged on the three-stage pedal, one end of the gas spring is hinged to the fixing seat, and the other end is connected to the pedal frame.

[0014] In an optional embodiment, a shock absorbing block is provided on the pedal frame.

[0015] In a second aspect, the utility model provides a vehicle, comprising an upper and lower pedal structure as described in any one of the aforementioned embodiments.

[0016] The beneficial effects of the embodiments of the utility model are:

[0017] In the first aspect, the utility model provides an upper and lower pedal structure, including multiple pedals, a pedal frame, a connecting rod, a driving member and an auxiliary member; the multiple pedals include at least a first-stage pedal, a second-stage pedal and a third-stage pedal, the first-stage pedal is arranged at the top of the pedal frame, the second-stage pedal is hinged at the middle of the pedal frame, the third-stage pedal is hinged at the bottom of the pedal frame, and the connecting rod is connected to the second-stage pedal and the third-stage pedal by transmission; one end of the driving member is connected to the pedal frame, and the other end is connected to the third-stage pedal; one end of the auxiliary member is connected to the pedal frame, and the other end is connected to the third-stage pedal. In this scheme, the driving member is used to drive the third-stage pedal to expand and retract. When driving the third-stage pedal to rotate, the connecting rod connecting the second-stage pedal and the third-stage pedal drives the second-stage pedal to rotate, and the direction of rotation is consistent with the third-stage pedal. When the driving member drives the third-stage pedal and the second-stage pedal to retract, the third-stage pedal and the second-stage pedal are in a vertical state and stand below the pedal. In addition, the auxiliary member adopts a gas spring, which is used to lock the expansion or retraction state of the third-stage pedal, so that the overall mechanism is more stable and will not shake, and at the same time has a buffering effect on the process of expanding or retracting the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a first perspective of an upper and lower pedal structure provided by an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of an upper and lower pedal structure from a second perspective provided by an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of an upper and lower pedal structure from a third perspective provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of retracting an upper and lower pedal structure provided in an embodiment of the utility model.

[0023] icon:

[0024] 10-first-stage pedal; 11-first pedal; 12-first connecting piece; 20-second-stage pedal; 21-second pedal; 22-second connecting piece; 221-first slot; 30-third-stage pedal; 31-third pedal; 32-third connecting piece; 321-second slot; 40-pedal frame; 41-first protrusion; 42-second protrusion; 50-connecting rod; 60-driving piece; 70-auxiliary piece; 71-fixed seat; 72-gas spring; 80-connecting seat; 90-shock absorber block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] This embodiment provides an upper and lower pedal structure, which is mainly used to solve the problem that the existing technology is complex, the overall structure is unstable, and it is easy to shake when deployed or retracted, causing unsafe conditions for passengers to get on and off. The details are as follows:

[0032] like Figure 1-Figure 4 As shown, the upper and lower pedal structure of this embodiment includes multiple pedals, a pedal frame 40, a connecting rod 50, a driving member 60 and an auxiliary member 70; the multiple pedals include at least a primary pedal 10, a secondary pedal 20 and a tertiary pedal 30, the primary pedal 10 is arranged on the top of the pedal frame 40, the secondary pedal 20 is hinged at the middle of the pedal frame 40, the tertiary pedal 30 is hinged at the bottom of the pedal frame 40, and the connecting rod 50 is connected to the secondary pedal 20 and the tertiary pedal 30 by transmission; one end of the driving member 60 is connected to the pedal frame 40, and the other end is connected to the tertiary pedal 30, and one end of the auxiliary member 70 is connected to the pedal frame 40, and the other end is connected to the tertiary pedal 30. Specifically, the driving member 60 in this embodiment is a driving cylinder, and the auxiliary member 70 is a gas spring 72.

[0033] In detail, when the pedal structure is turned from the retracted state to the extended state, the driving member 60 drives the three-stage pedal 30 to rotate counterclockwise. Since the connecting rod 50 connects the secondary pedal 20 and the three-stage pedal 30, the three-stage pedal 30 drives the secondary pedal 20 to rotate counterclockwise at the same time. At this time, the auxiliary member 70 cooperates with the driving member 60 to drive the three-stage pedal 30 to rotate, so that the three-stage pedal 30 and the secondary pedal 20 are more stable during the counterclockwise rotation. When the three-stage pedal 30 and the secondary pedal 20 rotate to the horizontal position, the driving member 60 and the auxiliary member 70 stop driving the three-stage pedal 30, and the auxiliary component 70 locks the state of the three-stage pedal 30 to prevent it from shaking; on the other hand, when the pedal structure turns from the expanded state to the retracted state, the driving component 60 drives the three-stage pedal 30 to rotate clockwise, and the three-stage pedal 30 drives the secondary pedal 20 to rotate clockwise at the same time. At this time, the auxiliary component 70 is unlocked and cooperates with the driving component 60 to drive the three-stage pedal 30 to rotate, until the three-stage pedal 30 and the secondary pedal 20 rotate to the vertical state, the driving component 60 and the auxiliary component 70 stop driving the three-stage pedal 30, and the auxiliary component 70 locks the state of the three-stage pedal 30.

[0034] It can be understood that in the present embodiment, the driving member 60 is used to drive the three-stage pedal 30 to expand and retract. When driving the three-stage pedal 30 to rotate, the connecting rod 50 connecting the secondary pedal 20 and the three-stage pedal 30 drives the secondary pedal 20 to rotate, and the direction of rotation is consistent with the three-stage pedal 30. When the driving member 60 drives the three-stage pedal 30 and the secondary pedal 20 to retract, the three-stage pedal 30 and the secondary pedal 20 are vertically standing below the pedal. In addition, the auxiliary member 70 adopts a gas spring 72, which is used to lock the three-stage pedal 30 in the expanded or retracted state, so that the overall mechanism is more stable and will not shake, and at the same time has a buffering effect on the process of expanding or retracting the overall structure.

[0035] In a preferred embodiment, the first pedal 10 includes a first pedal 11 and a first connecting member 12. The first pedal 11 is fixed to the top surface of the first connecting member 12, and the first connecting member 12 is fixedly connected to the top of the pedal frame 40. The first pedal 11 is horizontally arranged.

[0036] In detail, the first pedal 11 in this embodiment can be made of wood or steel, and is provided with anti-slip bumps or anti-slip grooves thereon. The specific arrangement depends on the actual situation. In addition, the first pedal 11 and the first connecting member 12 are fixedly connected by welding or bolts, and the first connecting member 12 is connected to the pedal frame 40 by welding.

[0037] In a preferred embodiment, the secondary pedal 20 includes a second pedal 21 and a second connecting member 22 . The second pedal 21 is fixed to the top surface of the second connecting member 22 . The second connecting member 22 is hinged to the pedal frame 40 via bolts.

[0038] In detail, the second pedal 21 and the first pedal 11 are made of the same material. The second pedal 21 forms a step shape with the first pedal 11 when unfolded, and is located directly below the first pedal 11 when retracted. In addition, two connecting bolts are provided on the second connecting member 22, one of which is used to connect with the pedal frame 40, and the other is used to be hinged with the connecting rod 50.

[0039] It is worth noting that the main function of the connecting rod 50 is to be used for transmission, so that the third-level pedal 30 drives the second-level pedal 20 to rotate when it rotates. In addition, the connecting rod 50 can also be used to increase the stability of the second-level pedal 20 and provide support for the second-level pedal 20.

[0040] In a preferred embodiment, a first slot 221 is provided on the second connecting member 22, and a first protrusion 41 is provided in the middle of the pedal frame 40. When the secondary pedal 20 is in a horizontal state, the first slot 221 and the first protrusion 41 conflict with each other to prevent the secondary pedal 20 from rotating toward the direction of the tertiary pedal 30.

[0041] In detail, the first slot 221 in this embodiment is actually a notch on the second connecting member 22, and the first protrusion 41 is a bolt head. This notch abuts against the bolt head when the secondary pedal 20 is in a horizontal state; in other embodiments, the first slot 221 can also be replaced by a convex shaft to abut against the pedal frame 40.

[0042] In a preferred embodiment, the three-stage pedal 30 includes a third pedal 31 and a third connecting member 32 . The third connecting member 32 is disposed on the top surface of the third pedal 31 , and the third connecting member 32 is hinged to the bottom of the pedal frame 40 .

[0043] It is understandable that the third pedal 31 is made of the same material as the second pedal 21 and the first pedal 11 , except that the area of ​​the third pedal 31 is larger than that of the second pedal 21 and the first pedal 11 , and is used to form a stepped shape with the first pedal 11 and the second pedal 21 .

[0044] In this embodiment, a second slot 321 is provided on the third connecting member 32, and a second protrusion 42 is provided on the pedal frame 40. When the third-level pedal 30 is in a horizontal state, the second slot 321 and the second protrusion 42 conflict with each other to prevent the third-level pedal 30 from rotating in a direction away from the second-level pedal 20.

[0045] It can be understood that the functions of the second slot 321 and the second protrusion 42 are the same as those of the first slot 221 and the first protrusion 41 , and both are used to limit the unfolded third pedal 31 to continue to rotate counterclockwise.

[0046] Furthermore, a connecting seat 80 is provided on the third pedal 31 , one end of the driving member 60 is connected to the connecting seat 80 , and the other end is connected to the pedal frame 40 .

[0047] In detail, the overall shape of the connecting seat 80 is a concave shape, and a transverse pin is arranged in the groove on the concave shape. The bottom of the connecting seat 80 is fixed on the third pedal 31, and the pin passes through one end of the driving member 60 and is hinged to the driving member 60.

[0048] In a preferred embodiment, the auxiliary component 70 includes a fixing seat 71 and a gas spring 72 . The fixing seat 71 is disposed on the three-stage pedal 30 . One end of the gas spring 72 is hinged to the fixing seat 71 , and the other end is connected to the pedal frame 40 .

[0049] It can be understood that the gas spring 72 mainly plays an auxiliary role. When the third pedal 31 is in the expanded state, the gas spring 72 contracts, and the fixed seat 71 locks the third pedal 31 to prevent the third pedal 31 from shaking. When the third pedal 31 is in the retracted state, the gas spring 72 extends, and the fixed seat 71 also locks the third pedal 31 to prevent the third pedal 31 from shaking or rotating. In the process of the third pedal 31 turning from one state to another, the gas spring 72 also acts as a buffer to maintain the overall smooth operation and increase the overall stability.

[0050] In the preferred embodiment, a shock absorbing block 90 is provided on the pedal frame 40. It can be understood that the shock absorbing block 90 mainly plays a shock absorbing effect when the passengers get on and off the vehicle.

[0051] The upper and lower pedal structure provided in this embodiment has the following advantages:

[0052] The driving member 60 in this embodiment is used to drive the three-level pedal 30 to expand and retract. When driving the three-level pedal 30 to rotate, the connecting rod 50 connecting the secondary pedal 20 and the three-level pedal 30 drives the secondary pedal 20 to rotate, and the rotation direction is consistent with the three-level pedal 30. When the driving member 60 drives the three-level pedal 30 and the secondary pedal 20 to retract, the three-level pedal 30 and the secondary pedal 20 are vertically standing below the pedal. The overall structure is simple and compact. In addition, the auxiliary member 70 uses a gas spring 72, which is used to lock the three-level pedal 30 in the expanded or retracted state, so that the overall mechanism is more stable and will not shake. At the same time, it has a buffering effect on the process of expanding or retracting the overall structure.

[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An upper and lower pedal structure, characterized in that: It includes multiple pedals, a pedal frame, a connecting rod, a driving member and an auxiliary member; the multiple pedals include at least a first-level pedal, a second-level pedal and a third-level pedal, the first-level pedal is arranged on the top of the pedal frame, the second-level pedal is hinged to the middle of the pedal frame, the third-level pedal is hinged to the bottom of the pedal frame, and the connecting rod is drivingly connecting the second-level pedal and the third-level pedal; one end of the driving member is connected to the pedal frame, and the other end is connected to the third-level pedal, and one end of the auxiliary member is connected to the pedal frame, and the other end is connected to the third-level pedal.

2. The upper and lower pedal structure according to claim 1, characterized in that: The first-stage pedal includes a first pedal and a first connecting member, the first pedal is fixed on the top surface of the first connecting member, and the first connecting member is fixedly connected to the top of the pedal frame.

3. The up-and-down pedal structure according to claim 1, characterized in that: The secondary pedal includes a second pedal and a second connecting member, the second pedal is fixed on the top surface of the second connecting member, and the second connecting member is hinged to the pedal frame through bolts.

4. The up-and-down pedal structure according to claim 3, characterized in that: The second connecting member is provided with a first slot, and the middle of the pedal frame is provided with a first protrusion. When the secondary pedal is in a horizontal state, the first slot and the first protrusion conflict with each other to prevent the secondary pedal from rotating in the direction of the tertiary pedal.

5. The up-and-down pedal structure according to claim 1, characterized in that: The three-stage pedal includes a third pedal and a third connecting member, wherein the third connecting member is arranged on the top surface of the third pedal, and the third connecting member is hinged to the bottom of the pedal frame.

6. The up-and-down pedal structure according to claim 5, characterized in that: The third connecting member is provided with a second slot, and the pedal frame is provided with a second protrusion. When the three-stage pedal is in a horizontal state, the second slot and the second protrusion abut against each other to prevent the three-stage pedal from rotating in a direction away from the two-stage pedal.

7. The up-and-down pedal structure according to claim 5, characterized in that: The third pedal is provided with a connecting seat, one end of the driving member is connected to the connecting seat, and the other end is connected to the pedal frame.

8. The up-and-down pedal structure according to claim 1, characterized in that: The auxiliary component comprises a fixing seat and a gas spring. The fixing seat is arranged on the three-stage pedal. One end of the gas spring is hinged on the fixing seat, and the other end is connected to the pedal frame.

9. The up-and-down pedal structure according to claim 1, characterized in that: A shock absorbing block is arranged on the pedal frame.

10. A vehicle, characterized in that: It comprises an upper and lower pedal structure as claimed in any one of claims 1 to 9.

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