Adjustable first-stage step assembly for fire fighting truck

Abstract

The utility model relates to the field of fire fighting equipment, in particular to an adjustable first-stage step assembly for a fire fighting truck, which comprises an upper supporting surface, an upper supporting plate is detachably mounted on the side surface of a truck body of the fire fighting truck, a guide rail is detachably mounted on the lower end surface of the upper supporting plate, and the adjustable first-stage step assembly further comprises a first-stage step, the first-stage step is connected with the upper supporting plate through a step connecting arm, one end of the step connecting arm is rotatably connected with the upper supporting plate, the other end of the step connecting arm is fixedly connected with the first-stage step, and a driving device is arranged between the step connecting arm and the upper supporting plate. The step connecting arm is further provided with a supporting lug, the supporting lug is connected with the guide rail in a sliding mode, and the problems that at the present stage, a first-stage step does not have a guiding function, the position of the current first-stage step cannot be fed back to a driver, and the driver and passengers are prone to missing steps and being injured when getting off the vehicle are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fire fighting equipment, concretely relates to an adjustable first step assembly for fire engine. BACKGROUND

[0002] The first step of the fire engine at present is usually directly fixed and installed on the fire engine body, does not have the guiding function of adjustable step, cannot feed back the position of the current first step to the driver, and the firefighter can wear the protective clothing and also have the equipment on the body, is easy to not see the position of the step and causes the driver to step on the air when getting off the car, causes the injury. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing an adjustable first step assembly for fire engine to solve the problem that the first step at present does not have the guiding function, cannot feed back the position of the current first step to the driver, is easy to cause the driver to step on the air when getting off the car, causes the injury.

[0004] To solve the above technical problem, the utility model adopts the technical scheme as follows:

[0005] An adjustable first step assembly for fire engine, including upper support surface, the upper support plate detachable installation on the side of the fire engine body, the lower end surface of the upper support plate detachable installation has the guide rail, still including the first step, the first step and the upper support plate between through the step connecting arm be linked, the step connecting arm one end rotatable connection in the upper support plate, the other end and the first step fixed connection, the step connecting arm and the upper support plate between being provided with drive arrangement, still being provided with lug on the step connecting arm, the lug with the guide rail sliding connection.

[0006] Further limit, the upper support plate upper end surface installation has the step installation base, the upper support plate passes through the step installation base and installs in the side of the fire engine body.

[0007] Further limit, the guide rail passes through the guide rail mounting bolt and installs in the lower end surface of the upper support plate, the guide rail is arc, the guide rail middle part is equipped with the guide groove, the lug is equipped with the fixed rod, the fixed rod passes through the guide groove and can be slidably connected and is arranged in the guide groove.

[0008] Further limit, the side end face on the side close to the first step of the step connecting arm is equipped with lower mounting plate, the side end face on the side away from the step connecting arm of the upper support plate is equipped with upper mounting plate, the drive arrangement between the upper mounting plate and lower mounting plate is air cylinder, the fixed end of the air cylinder is installed on the upper mounting plate, and the output shaft is installed on the lower mounting plate.

[0009] The utility model discloses relative to the beneficial effect of present stage technology is:

[0010] Be provided with cylinder, the movement of first step can be driven through the air rod telescopic of cylinder, wherein the cooperation of guide rail and fixed link plays a certain guiding effect and prevents deviation, simultaneously, corner sensor can feed back the position of first step, make the staff understand the position information of current step, and avoid the footstep of getting off when. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the front view schematic drawing of the utility model

[0012] Figure 2 It is the three-dimensional schematic drawing of the utility model

[0013] The figure mark corresponds respectively: 1 - upper support board, 2 - step installation base, 3 - guide rail, 31 - guide groove, 4 - guide rail installation bolt, 5 - first step, 6 - step connecting arm, 7 - lug, 71 - fixed link, 8 - lower installation plate, 9 - upper installation plate, 10 - cylinder, 11 - corner sensor. DETAILED DESCRIPTION

[0014] In order to make the technical personnel in the field can better understand the technical scheme of the utility model, the utility model technical scheme is further explained below in conjunction with the drawings and examples. Embodiment

[0015] As Figure 1 And Figure 2As shown, an adjustable first step assembly for a fire truck, including an upper support plate 1, the upper end face of the upper support plate 1 is provided with a step mounting base 2, the upper support plate 1 is detachably mounted on the side of the vehicle body of the fire truck through the step mounting base 2, a guide rail 3 is arranged on the lower end face of the upper support plate 1, the guide rail 3 is detachably mounted on the lower end face of the upper support plate 1 through a guide rail mounting bolt 4, the guide rail 3 is arc-shaped, a guide groove 31 is formed in the middle of the guide rail 3, the guide groove 31 is a through groove, further comprising a first step 5, the first step 5 and the upper support plate 1 are connected through a step connecting arm 6, one end of the step connecting arm 6 is rotatably connected with the upper support plate 1, the other end is fixedly connected with the first step 5, an ear 7 is arranged on the middle of the step connecting arm 6, a fixing rod 71 is arranged on the ear 7 and is slidably arranged in the guide groove 31, plays a guiding role, a lower mounting plate 8 is arranged on the side end face of the step connecting arm 6 close to the first step 5, an upper mounting plate 9 is arranged on the side end face of the upper support plate 1 away from the step connecting arm 6, a driving device is arranged between the upper mounting plate 9 and the lower mounting plate 8, the driving device is a pneumatic cylinder 10, the fixed end of the pneumatic cylinder 10 is mounted on the upper mounting plate 9, the output end is mounted on the lower mounting plate 8, when the pneumatic cylinder 10 is extended or retracted, the step connecting arm 6 and the first step 5 can be driven to extend or retract together, meanwhile, a corner sensor 11 is arranged on one side of the rotating connection between the step connecting arm 6 and the upper support plate 1, can feed back the position of the first step 5, and the position information range of the first step 5 is given to the driver, so that the driver knows the current position of the step, and avoids stepping on the empty when getting off the vehicle.

[0016] When not in use, the pneumatic cylinder 10 is in a retracted state, and the first step 5 and the step connecting arm 6 are also in a retracted state and are attached to the vehicle body, when use is required, the pneumatic cylinder 10 is started, the pneumatic cylinder output rod is extended, and the first step 5 and the step connecting arm 6 are also extended, the fixing rod 71 on the ear 7 slides in the guide groove 31 from top to bottom, plays a certain guiding role, and the corner sensor 11 transmits the real-time position to the driver when the first step 5 and the step connecting arm 6 are extended.

[0017] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application

[0018] The adjustable first-step assembly for the fire truck is described in detail above, and the description of the specific embodiment is only used for helping to understand the method and the core idea of the utility model, and it should be pointed out that, for the ordinary skilled in the art, some improvements and modifications can be made to the utility model without departing from the utility model, and the improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. An adjustable single-step assembly for a fire truck, characterized in that: The system includes an upper support plate (1), which is detachably mounted on the side of the fire truck body. A guide rail (3) is detachably mounted on the lower end face of the upper support plate (1). The system also includes a first step (5), which is connected to the upper support plate (1) via a step connecting arm (6). One end of the step connecting arm (6) is rotatably connected to the upper support plate (1), and the other end is fixedly connected to the first step (5). A driving device is provided between the step connecting arm (6) and the upper support plate (1). A support lug (7) is also provided on the step connecting arm (6), and the support lug (7) is slidably connected to the guide rail (3).

2. The adjustable single-step assembly for a fire truck according to claim 1, characterized in that: The upper support plate (1) is equipped with a step mounting base (2) on its upper end face, and the upper support plate (1) is mounted on the side of the fire truck body through the step mounting base (2).

3. The adjustable single-step assembly for a fire truck according to claim 1, characterized in that: The guide rail (3) is installed on the lower end face of the upper support plate (1) by guide rail mounting bolts (4). The guide rail (3) is arc-shaped and has a guide groove (31) in the middle. A fixing rod (71) is provided on the support lug (7). The fixing rod (71) passes through the guide groove (31) and is slidably connected in the guide groove (31).

4. The adjustable single-step assembly for a fire truck according to claim 1, characterized in that: The step connecting arm (6) is provided with a lower mounting plate (8) on the side end face near the first step (5), and the upper support plate (1) is provided with an upper mounting plate (9) on the side end face away from the step connecting arm (6). The driving device between the upper mounting plate (9) and the lower mounting plate (8) is a cylinder (10). The fixed end of the cylinder (10) is mounted on the upper mounting plate (9), and the output shaft is mounted on the lower mounting plate (8).

5. An adjustable single-step assembly for a fire truck according to claim 1, characterized in that: An angle sensor (11) is installed on one side of the rotatable connection between the step connecting arm (6) and the upper support plate (1).

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