Passenger room third-order pneumatic turnover pedal device and passenger room door

Abstract

The utility model relates to the technical field of vehicle pedals, and particularly discloses a third-order pneumatic turnover pedal device of a passenger compartment and a passenger compartment door. Comprising a pedal body and two installation connecting plates arranged on the left side and the right side of the pedal body, the pedal body comprises a first-order pedal body, a second-order pedal body and a third-order pedal body from bottom to top, and the first-order pedal body, the second-order pedal body and the third-order pedal body are all hinged between the two installation connecting plates; a first connecting rod is hinged between the first-order pedal and the second-order pedal, and a second connecting rod is hinged between the first-order pedal and the third-order pedal; and one end of the telescopic driving piece is hinged to the mounting connecting plate, and the other end of the telescopic driving piece is hinged to the first-step pedal. According to the scheme, the telescopic driving part is lower in installation difficulty, the installation process is simpler and faster, the installation efficiency is improved, power of the telescopic driving part can be directly transmitted to the second-order pedal and the third-order pedal through the first-order pedal, stress distribution is optimized, the structural stability is improved, and the service life of the structure is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vehicle pedal, specifically discloses a passenger compartment three-stage pneumatic turnover pedal device and passenger compartment door. BACKGROUND

[0002] Turnover pedal is generally used in the field of fire vehicles and engineering vehicles, and is used for functions such as personnel entering and exiting the passenger compartment or taking and placing equipment. For example, the floor of the independent passenger compartment is a certain height from the ground, and personnel cannot directly step from the ground to the floor of the passenger compartment when the passenger compartment door is opened. In order to facilitate the personnel to enter and exit the passenger compartment or to take and place equipment, a multi-stage pedal device is usually required to be arranged.

[0003] The existing multi-stage movable pedal is usually connected by a connecting rod mechanism to form a turnover design. A driving cylinder is arranged on both sides of the pedal component, and the connecting rod mechanism needs to be synchronously driven to realize the expansion and retraction of the multi-stage pedal. The driving cylinder is arranged in the space of the pedal component, and the structure is complex and the assembly is difficult. For example, the patent CN204502218U discloses a multi-stage pedal ladder for a fire vehicle, wherein one end of the driving component is hinged to the second pedal, and the other end is hinged to the third pedal. Although this design can realize the expansion and retraction of the pedal, the driving component is arranged between the two pedals, and the hinged points between the pedals and the connecting points of the driving component need to be accurately aligned during installation, which requires high installation precision and is difficult to assemble. Installation errors are easy to occur, which leads to inflexible rotation and complicated operation. SUMMARY

[0004] The utility model aims at overcoming the defects of the prior art, and provides a passenger compartment three-stage pneumatic turnover pedal device and passenger compartment door.

[0005] On the one hand, the utility model discloses a passenger compartment three-stage pneumatic turnover pedal device, which adopts the following technical scheme:

[0006] A passenger compartment three-stage pneumatic turnover pedal device, comprising a pedal and two installation connecting plates arranged on the left and right sides of the pedal, wherein the pedal comprises a first-stage pedal, a second-stage pedal and a third-stage pedal from bottom to top, and the first-stage pedal, the second-stage pedal and the third-stage pedal are all hinged between the two installation connecting plates; a first connecting rod is hinged between the first-stage pedal and the second-stage pedal, and a second connecting rod is hinged between the first-stage pedal and the third-stage pedal; the device further comprises a telescopic driving member, one end of the telescopic driving member is hinged to the installation connecting plate, and the other end of the telescopic driving member is hinged to the first-stage pedal.

[0007] Preferably, the telescopic driving member is located on the outer side of the installation connecting plate, and the first connecting rod and the second connecting rod are located on the inner side of the installation connecting plate.

[0008] Preferably, the first-order pedal side is provided with a first curved arm, which is hinged with the mounting connecting plate, the first connecting rod and the third connecting rod respectively instead of the first-order pedal; the second-order pedal side is provided with a second curved arm, which is hinged with the mounting connecting plate and the first connecting rod respectively instead of the second-order pedal; the third-order pedal side is provided with a third curved arm, which is hinged with the mounting connecting plate and the third connecting rod respectively instead of the third-order pedal.

[0009] Preferably, the mounting connecting plate is provided with a first-order limiting block, a second-order limiting block and a third-order limiting block; when the pedal is unfolded, the first-order limiting block abuts against the top of the first curved arm, the second-order limiting block abuts against the top of the second curved arm, and the third-order limiting block abuts against the top of the third curved arm.

[0010] Preferably, the first-order pedal or / and the second-order pedal or / and the third-order pedal is provided with a side marker lamp.

[0011] Preferably, the mounting connecting plate is provided with a pedal overturning sensor, which feeds back an electric signal to control the opening and closing of the side marker lamp.

[0012] Preferably, the first-order pedal or / and the second-order pedal or / and the third-order pedal is provided with an antiskid pad.

[0013] Preferably, the top of the mounting connecting plate is provided with a mounting block, which is provided with a screw mounting hole.

[0014] In another aspect, the utility model discloses a passenger compartment door, adopts the following technical scheme:

[0015] A passenger compartment door comprises a door and the passenger compartment three-order pneumatic overturning pedal device, and the passenger compartment three-order pneumatic overturning pedal device is arranged below the door.

[0016] Preferably, the utility model further comprises a door opening and closing sensor, which feeds back an electric signal to control the starting of the telescopic driving part.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] The utility model discloses a passenger compartment three -step pneumatic turnover pedal device, through installing telescopic drive part on the installation connecting plate, distinguish from the drive part installation between the pedal of current, telescopic drive part one end of the scheme is hinged with the installation connecting plate, and the other end is hinged with one -step pedal, not only reduced the requirement of installation accuracy, makes the installation process more simple and fast, improves the installation efficiency, and through the design first connecting rod connects one -step pedal and two -step pedal, designs second connecting rod and connects one -step pedal and three -step pedal, like this, the power of telescopic drive part can be directly transmitted to two -step pedal and three -step pedal through one -step pedal, further optimizes the stress distribution of whole pedal system, makes the unfolding and retraction process of pedal more stable and smooth, reduces the jamming phenomenon caused by uneven local stress, improves the stability and service life of structure. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the unfolding state schematic drawing of passenger compartment three -step pneumatic turnover pedal device of this embodiment;

[0020] Figure 2 It is the folding state schematic drawing of passenger compartment three -step pneumatic turnover pedal device of this embodiment;

[0021] Figure 3 It is Figure 1 Another perspective schematic drawing;

[0022] Figure 4 It is Figure 2 Another perspective schematic drawing.

[0023] EXPLANATION OF DRAWINGS:

[0024] 1, installation connecting plate, 2, one -step pedal, 21, first curved arm, 3, two -step pedal, 31, second curved arm, 4, three -step pedal, 41, third curved arm, 5, first connecting rod, 6, second connecting rod, 7, telescopic drive part, 8, one -step limit block, 9, two -step limit block, 10, three -step limit block, 11, side marker lamp, 12, pedal turnover sensor, 13, mounting block. DETAILED DESCRIPTION

[0025] In order to make the above -mentioned purpose, features and advantages of the utility model can be more obvious and easy to understand, the utility model is further explained in detail below with the help of drawings and specific embodiment.

[0026] Embodiment 1

[0027] The embodiment discloses a three-stage aerodynamic turnover pedal device of a passenger compartment, which comprises a pedal and two mounting connecting plates 1 arranged on the left and right sides of the pedal, the pedal comprises a first-stage pedal 2, a second-stage pedal 3 and a third-stage pedal 4 from bottom to top, and the first-stage pedal 2, the second-stage pedal 3 and the third-stage pedal 4 are all hinged between the two mounting connecting plates 1; a first connecting rod 5 is hinged between the first-stage pedal 2 and the second-stage pedal 3, and a second connecting rod 6 is hinged between the first-stage pedal 2 and the third-stage pedal 4; the device further comprises an extension driving element 7, one end of the extension driving element 7 is hinged with the mounting connecting plate 1, and the other end of the extension driving element 7 is hinged with the first-stage pedal 2, and the extension driving element 7 can be a cylinder. According to the scheme, the extension driving element 7 is arranged on the mounting connecting plate 1, one end of the extension driving element 7 is hinged with the mounting connecting plate 1, and the other end of the extension driving element 7 is hinged with the first-stage pedal 2, so that the mounting position of the extension driving element 7 is more flexible, the dependence on the internal structure of the pedal is reduced, the requirement on the mounting precision is reduced, and the mounting efficiency is improved. Meanwhile, the thrust and the pulling force of the extension driving element 7 can be transmitted to the first-stage pedal 2 through the mounting connecting plate 1, and the first-stage pedal 2 is hinged with the second-stage pedal 3 through the first connecting rod 5 and is hinged with the third-stage pedal 4 through the second connecting rod 6, so that the first-stage pedal 2 can directly transmit the power of the extension driving element 7 to the second-stage pedal 3 through the first connecting rod 5 and to the third-stage pedal 4 through the second connecting rod 6, thereby optimizing the stress distribution of the whole pedal system, making the unfolding and folding processes of the pedal more stable and smooth, reducing the jamming phenomenon caused by uneven local stress, and being beneficial to guaranteeing the working reliability of the pedal device and improving the stability and the service life of the structure.

[0028] As a preferred scheme, the extension driving element 7 is located on the outer side of the mounting connecting plate 1, and the first connecting rod 5 and the second connecting rod 6 are located on the inner side of the mounting connecting plate 1. Such a layout makes the structure of the whole pedal device more compact, reduces the size of the pedal device, and is also beneficial to the installation and maintenance of the extension driving element 7, and further improves the stability and the reliability of the pedal device.

[0029] As a preferred scheme, a first curved arm 21 is arranged on the side of the first-stage pedal 2, the first curved arm 21 is hinged with the mounting connecting plate 1, the first connecting rod 5 and the second connecting rod 6 instead of the first-stage pedal 2; a second curved arm 31 is arranged on the side of the second-stage pedal 3, the second curved arm 31 is hinged with the mounting connecting plate 1 and the first connecting rod 5 instead of the second-stage pedal 3; and a third curved arm 41 is arranged on the side of the third-stage pedal 4, the third curved arm 41 is hinged with the mounting connecting plate 1 and the second connecting rod 6 instead of the third-stage pedal 4. By arranging the curved arm structure, the movement track and the stress distribution of the pedal are optimized, the pedal is more stable and smooth during the unfolding and folding processes, and the stability and the service life of the structure are improved. In other embodiments, the pedal can be directly hinged with the mounting connecting plate 1 and the corresponding connecting rod.

[0030] As a preferred solution, the installation coupling plate 1 is provided with a first limiting block 8, a second limiting block 9 and a third limiting block 10; when the pedal is unfolded, the first limiting block 8 abuts against the top of the first curved arm 21, the second limiting block 9 abuts against the top of the second curved arm 31, and the third limiting block 10 abuts against the top of the third curved arm 41. Compared with the prior art solution in which the limiting block is located below the pedal, the limiting block of the present solution directly abuts against the top of the curved arm, which can be directly operated from above the pedal during installation and maintenance, thereby providing a more spacious operation space, reducing the difficulty of installation and maintenance, improving the maintenance efficiency, and being more intuitive in position, so that the operator can more clearly see the position of the limiting block when getting on and off the vehicle, thereby reducing the risk of pedal damage or personnel injury caused by misoperation, and further improving the use safety.

[0031] As a preferred solution, the first pedal 2 or / and the second pedal 3 or / and the third pedal 4 is provided with a side marker light 11; in the present embodiment, the side marker light 11 is only installed on the first pedal 2. The side marker light 11 can provide illumination for the operator at night or in low light conditions, and prompt the position and state of the pedal, thereby improving the safety of the operator when getting on and off the vehicle, and reducing the risk of accidents caused by poor visibility.

[0032] As a preferred solution, the installation coupling plate 1 is provided with a pedal turnover sensor 12, which is arranged towards the side of the first pedal 2. The pedal turnover sensor 12 can judge the folding or unfolding state of the pedal by detecting the distance change between the first pedal 2 and the pedal turnover sensor 12, and the pedal turnover sensor 12 feeds back an electrical signal to control the opening and closing of the side marker light 11. When the pedal is unfolded, the side marker light 11 is automatically turned on, and when the pedal is retracted, the side marker light 11 is automatically turned off, thereby improving the convenience and safety of use, and reducing the operation burden of the operator.

[0033] As a preferred solution, the surface of the first pedal 2 or / and the second pedal 3 or / and the third pedal 4 is provided with a non-slip pad. The non-slip pad can increase the friction of the pedal surface, prevent the operator from slipping when getting on and off the vehicle, and improve the safety of the pedal device.

[0034] As a preferred solution, the top of the installation coupling plate 1 is provided with a mounting block 13, and the mounting block 13 is provided with a screw mounting hole. By providing the mounting block 13 and the screw mounting hole, the pedal device can be conveniently installed on the vehicle, thereby improving the convenience and stability of installation.

[0035] As a preferred solution, the first pedal 2, the second pedal 3 and the third pedal 4 are arranged in a stepped manner from bottom to top, and in a progressive stepped manner in the open state. The stepped arrangement of the pedals conforms to the principle of human engineering, facilitates the operator to get on and off the vehicle, and further enhances the use experience and safety.

[0036] Embodiment 2

[0037] The embodiment discloses a passenger compartment door, which comprises a door and the passenger compartment three-stage pneumatic flip pedal device described above, and the passenger compartment three-stage pneumatic flip pedal device is arranged below the door. The design of the passenger compartment door organically combines the pedal device with the door, realizes the automatic unfolding and folding functions of the pedal device, improves the use convenience and safety of the passenger compartment door, and provides a more comfortable and safe getting-on and getting-off experience for an operator.

[0038] As a preferred solution, a door opening and closing sensor is further included, which is arranged towards the door side, and the door opening and closing sensor can judge the opening and closing state of the door by detecting the distance change of the door, and the door opening and closing sensor feeds back an electric signal to control the extension and retraction drive 7 to start. When the door is opened, the door opening and closing sensor feeds back an electric signal to control the extension and retraction drive 7 to push the first-stage pedal 2 to slowly unfold, and at the same time, the pedal flip sensor 12 feeds back an electric signal to control the side marker lights 11 on both sides of the first-stage pedal 2 to flicker, which indicates that the pedal is unfolding, and the operator keeps a certain distance to avoid collision risks. When the door is closed, the door opening and closing sensor feeds back an electric signal to control the extension and retraction drive 7 to pull the first-stage pedal 2 to fold, and the first-stage pedal 2 drives the second-stage pedal 3 to fold through the first connecting rod 5, and drives the third-stage pedal 4 to fold through the second connecting rod 6, until all the three-stage pedals are folded in place, and finally the pedal flip sensor 12 feeds back an electric signal to control the side marker lights 11 on both sides of the first-stage pedal 2 to be turned off.

[0039] The technical solutions provided by the utility model are described in detail above, and the principles and implementation modes of the utility model are described by applying specific examples in this paper. The above description of the embodiments is only used to help understand the method and core idea of the utility model. Meanwhile, for those skilled in the art, according to the idea of the utility model, the specific implementation modes and application ranges will be changed, and the above description should not be understood as a limitation of the utility model.

Claims

1. A three-stage pneumatic tilting pedal device for an occupant compartment, characterized in that, The device includes a pedal and two mounting plates located on the left and right sides of the pedal. The pedal, from bottom to top, includes a first-stage pedal, a second-stage pedal, and a third-stage pedal, all of which are hinged between the two mounting plates. A first connecting rod is hinged between the first-stage pedal and the second-stage pedal, and a second connecting rod is hinged between the first-stage pedal and the third-stage pedal. The device also includes a telescopic drive component, one end of which is hinged to the mounting plate, and the other end of which is hinged to the first-stage pedal.

2. The three-stage pneumatic tilting pedal device for the passenger compartment according to claim 1, characterized in that, The telescopic drive component is located on the outside of the mounting connection plate, and the first link and the second link are located on the inside of the mounting connection plate.

3. The three-stage pneumatic tilting pedal device for the passenger compartment according to claim 1, characterized in that, The first-stage pedal has a first crank arm on its side, which is hinged to the mounting plate, the first connecting rod, and the third connecting rod in place of the first-stage pedal; the second-stage pedal has a second crank arm on its side, which is hinged to the mounting plate and the first connecting rod in place of the second-stage pedal; the third-stage pedal has a third crank arm on its side, which is hinged to the mounting plate and the third connecting rod in place of the third-stage pedal.

4. The three-stage pneumatic tilting pedal device for the passenger compartment according to claim 3, characterized in that, The mounting plate is provided with a first-order limiting block, a second-order limiting block and a third-order limiting block; when the pedal is unfolded, the first-order limiting block abuts against the top of the first crank arm, the second-order limiting block abuts against the top of the second crank arm and the third-order limiting block abuts against the top of the third crank arm.

5. The three-stage pneumatic tilting pedal device for the passenger compartment according to claim 1, characterized in that, The first-stage pedal and / or the second-stage pedal and / or the third-stage pedal are equipped with side indicator lights.

6. The three-stage pneumatic tilting pedal device for the passenger compartment according to claim 5, characterized in that, A pedal flip sensor is installed on the mounting plate, and the pedal flip sensor feeds back an electrical signal to control the opening and closing of the side marker light.

7. The three-stage pneumatic tilting pedal device for the passenger compartment according to claim 1, characterized in that, The surfaces of the first-stage pedal and / or the second-stage pedal and / or the third-stage pedal are provided with anti-slip pads.

8. The three-stage pneumatic tilting pedal device for the passenger compartment according to claim 1, characterized in that, The mounting plate has a mounting block on its top, and the mounting block has screw mounting holes.

9. A passenger compartment door, characterized in that, The vehicle includes a door and a passenger compartment three-stage pneumatic tilting pedal device as described in any one of claims 1-8, wherein the passenger compartment three-stage pneumatic tilting pedal device is located below the door.

10. The passenger compartment door according to claim 9, characterized in that, It also includes a door switch sensor, which feeds back an electrical signal to control the activation of the telescopic drive component.

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