An electric telescopic step with adaptive height adjustment

Abstract

The utility model relates to electric telescopic step technology field, and disclose a kind of self-adapting height-adjusting electric telescopic step, including installation shell, the movable rack is arranged in installation shell inside, a set of adjusting mechanism is symmetrically equipped in movable rack both sides, and a set of adjusting mechanism bottom is connected with the pedal;The utility model scheme is combined design by installation shell and movable rack, cooperation electric push rod drive telescopic structure, can realize the automatic extension and retraction of pedal, motor is driven to rotate by the transmission of driving wheel, driven wheel and synchronous belt, and then control plate formula chain's storage and release, in combination with the connecting relationship of limiting rod and pedal, can accurately adjust the height of pedal, satisfy the boarding demand of different height population, effectively eliminate the use limitation of traditional fixed height step, the guiding block of pedal rear end and the guiding sliding slot of movable rack form the clamping sliding structure, ensure the stability when pedal height adjustment, reduce the possibility of pedal shaking.

Description

Technical Field

[0001] This utility model belongs to the field of electric telescopic step technology, specifically an electric telescopic step with adaptive height adjustment. Background Technology

[0002] Electric retractable steps are automatic retractable boarding aids installed on vehicles, primarily used to facilitate passenger boarding and alighting. They are mainly suitable for high-chassis vehicles such as commercial vehicles, off-road vehicles, SUVs, and pickup trucks.

[0003] Most existing electric telescopic steps have a fixed height after installation, which limits their applicability to users of different heights. To address this, we propose an electric telescopic step with adaptive height adjustment. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an adaptive height-adjustable electric telescopic step, which effectively solves the problem that most existing electric telescopic steps are often fixed in height after installation, thus having corresponding limitations for users of different heights.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adaptive height-adjustable electric telescopic step, comprising a mounting housing, a movable frame being fitted inside the mounting housing, a set of adjustment mechanisms symmetrically arranged on both sides of the movable frame, a pedal connected to the bottom of the set of adjustment mechanisms, an auxiliary mechanism at the bottom of the pedal, a set of electric push rods symmetrically arranged on the rear side of the movable frame, a set of guide blocks symmetrically fixed at the rear end of the pedal, the adjustment mechanism comprising a motor, a drive wheel connected to the movable end of the motor, a driven wheel provided in front of the drive wheel, a synchronous belt sleeved on the outer side of the drive wheel and the driven wheel, a rotating frame fixedly connected to the end of the drive wheel and the driven wheel near the movable frame, a plate chain wound around the inner side of the rotating frame, and a limit rod penetrating the inner side of the bottom of the plate chain.

[0006] Preferably, a set of the rotating frames forms a rotating structure with the movable frame via a drive wheel, a driven wheel, a synchronous belt, and a motor, and the movable frame forms a telescopic structure with the mounting housing via an electric push rod.

[0007] Preferably, the limiting rod is fixed to the inner side of the pedal surface, the pedal forms an engaging sliding structure with the movable frame through the guide block, and the movable frame has a guide groove inside that matches the guide block.

[0008] Preferably, the auxiliary mechanism includes a limiting frame one, which is fixed to the front side of the bottom of the pedal. A support frame is inserted inside the limiting frame one, and a retaining ring is movably sleeved on the surface of the support frame. A hydraulic cylinder is connected to the surface of the retaining ring, and a limiting frame two is provided on the outer side of the end of the hydraulic cylinder away from the retaining ring.

[0009] Preferably, the support frame can rotate freely inside the limiting frame, and the support frame is roughly in the shape of an inverted "U".

[0010] Preferably, the hydraulic cylinder can rotate freely inside the second limiting frame, and the retaining ring connected to the movable end of the hydraulic cylinder is located in the middle of the surface of the support frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. Through the combined design of the mounting housing and movable frame, and the telescopic structure driven by the electric push rod, the pedal can be automatically extended and retracted. The motor effectively drives the rotating frame to rotate through the transmission of the drive wheel, driven wheel and synchronous belt, thereby controlling the extension and retraction of the plate chain. Combined with the connection relationship between the limit rod and the pedal, the pedal height can be precisely adjusted to meet the boarding needs of people of different heights, effectively eliminating the limitations of traditional fixed-height steps. The locking and sliding structure formed by the guide block at the rear of the pedal and the guide groove of the movable frame ensures the stability of the pedal height adjustment and reduces the possibility of pedal shaking.

[0013] 2. A flexible support structure is formed by the limiting frame and the freely rotatable inverted "U"-shaped support frame. The inverted "U"-shaped design not only ensures the strength of the support frame itself, but also allows it to rotate to different angles via hydraulic cylinders and retaining rings to adapt to different ground shapes. This avoids the problem of traditional fixed supports being prone to suspension or jamming on uneven ground. The auxiliary mechanism not only enhances the load-bearing capacity of the pedals when stepped on, but also improves the safety and reliability of the steps when used on complex ground, further improving the practical performance of the adaptive height-adjustable steps. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0018] Figure 3 This is a schematic diagram of the overall structure of the present invention in its adjusted state;

[0019] Figure 4 This is a schematic diagram of the overall structure of this utility model under another viewing angle adjustment state;

[0020] Figure 5 This is a partial structural diagram of the present invention.

[0021] In the diagram: 1. Mounting housing; 2. Movable frame; 3. Adjustment mechanism; 301. Motor; 302. Drive wheel; 303. Driven wheel; 304. Synchronous belt; 305. Rotating frame; 306. Plate chain; 307. Limiting rod; 4. Pedal; 5. Auxiliary mechanism; 501. Limiting frame one; 502. Support frame; 503. Snap ring; 504. Hydraulic cylinder; 505. Limiting frame two; 6. Electric push rod; 7. Guide block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5An adaptive height-adjustable electric telescopic step includes a mounting housing 1, a movable frame 2 is fitted inside the mounting housing 1, a set of adjustment mechanisms 3 are symmetrically arranged on both sides of the movable frame 2, a pedal 4 is connected to the bottom of the set of adjustment mechanisms 3, an auxiliary mechanism 5 is provided at the bottom of the pedal 4, a set of electric push rods symmetrically arranged on the rear side of the movable frame 2, and a set of guide blocks 7 are symmetrically fixed at the rear end of the pedal 4. The adjustment mechanism 3 includes a motor 301, a drive wheel 302 is connected to the movable end of the motor 301, a driven wheel 303 is provided in front of the drive wheel 302, a synchronous belt 304 is sleeved on the outer side of the drive wheel 302 and the driven wheel 303, and a rotating frame 305 is fixedly connected to the end of the drive wheel 302 and the driven wheel 303 near the movable frame 2. The set of rotating frames 305 forms a rotating structure with the movable frame 2 through the drive wheel 302, the driven wheel 303, the synchronous belt 304, and the motor 301. The movable frame 2 forms a telescopic structure with the mounting housing 1 through the electric push rods 6. A plate chain is wound inside the rotating frame 305. 306, a limiting rod 307 runs through the inner bottom of the plate chain 306. Furthermore, the limiting rod 307 is fixed to the inner surface of the pedal 4. The pedal 4 forms a locking and sliding structure with the movable frame 2 through the guide block 7. The movable frame 2 has a guide groove inside that matches the guide block 7. Through the combined design of the mounting housing 1 and the movable frame 2, and with the telescopic structure driven by the electric push rod 6, the pedal 4 can be automatically extended and retracted. The motor 301 effectively drives the rotating frame 305 to rotate through the transmission of the drive wheel 302, the driven wheel 303 and the synchronous belt 304, thereby controlling the extension and retraction of the plate chain 306. Combined with the connection relationship between the limiting rod 307 and the pedal 4, the height of the pedal 4 can be precisely adjusted to meet the boarding needs of people of different heights, effectively eliminating the limitations of traditional fixed-height steps. The locking and sliding structure formed by the guide block 7 at the rear end of the pedal 4 and the guide groove of the movable frame 2 ensures the stability of the pedal 4 during height adjustment and reduces the possibility of the pedal 4 shaking.

[0024] Auxiliary mechanism 5 includes a first limiting frame 501, which is fixed to the front side of the bottom of pedal 4. A support frame 502 is fitted inside the first limiting frame 501. The support frame 502 can rotate freely inside the first limiting frame 501. The support frame 502 is roughly inverted U-shape. A retaining ring 503 is movably fitted on the surface of the support frame 502. A hydraulic cylinder 504 is connected to the surface of the retaining ring 503. A second limiting frame 505 is provided on the outer side of the end of the hydraulic cylinder 504 away from the retaining ring 503. Furthermore, the hydraulic cylinder 504 can rotate freely inside the second limiting frame 505. The retaining ring 505 is connected to the movable end of the hydraulic cylinder 504. Located in the middle of the surface of the support frame 502, 03 forms a flexible support structure with the freely rotatable inverted "U"-shaped support frame 502 through the limiting frame 501. The inverted "U"-shaped design not only ensures the strength of the support frame 502 itself, but also allows it to be rotated to different angles through the hydraulic cylinder 504 and the retaining ring 503 to adapt to different ground shapes, avoiding the problem of traditional fixed supports being easily suspended or stuck on uneven ground. The auxiliary mechanism 5 not only enhances the load-bearing capacity of the pedal 4 when stepped on, but also improves the safety and reliability of the step when used on complex ground, further improving the practical performance of the adaptive height-adjustable step.

Claims

1. An adaptive height-adjustable electrically retractable step, characterized in that: The system includes a mounting housing (1), inside which a movable frame (2) is fitted. A set of adjustment mechanisms (3) are symmetrically arranged on both sides of the movable frame (2). A pedal (4) is connected to the bottom of each adjustment mechanism (3). An auxiliary mechanism (5) is provided at the bottom of the pedal (4). A set of electric push rods (6) are symmetrically arranged at the rear of the movable frame (2). A set of guide blocks (7) are symmetrically fixed at the rear end of the pedal (4). The adjustment mechanism (3) includes a motor (301). 301) A drive wheel (302) is connected to the movable end. A driven wheel (303) is provided on the front side of the drive wheel (302). A synchronous belt (304) is sleeved on the outside of the drive wheel (302) and the driven wheel (303). A rotating frame (305) is fixedly connected to the end of the drive wheel (302) and the driven wheel (303) near the movable frame (2). A plate chain (306) is wound on the inner side of the rotating frame (305). A limit rod (307) passes through the inner side of the bottom of the plate chain (306).

2. The adaptive height-adjustable electric telescopic step according to claim 1, characterized in that: A set of the rotating frame (305) forms a rotating structure with the movable frame (2) through the driving wheel (302), the driven wheel (303), the synchronous belt (304) and the motor (301). The movable frame (2) forms a telescopic structure with the mounting housing (1) through the electric push rod (6).

3. The adaptive height-adjustable electrically retractable step according to claim 1, characterized in that: The limiting rod (307) is fixed on the inner side of the surface of the pedal (4). The pedal (4) forms a locking and sliding structure with the movable frame (2) through the guide block (7). The movable frame (2) has a guide groove inside that matches the guide block (7).

4. The adaptive height-adjustable electric telescopic step according to claim 1, characterized in that: The auxiliary mechanism (5) includes a limiting frame one (501), which is fixed to the front side of the bottom of the pedal (4). A support frame (502) is inserted inside the limiting frame one (501). A retaining ring (503) is movably sleeved on the surface of the support frame (502). A hydraulic cylinder (504) is connected to the surface of the retaining ring (503). A limiting frame two (505) is provided on the outer side of the end of the hydraulic cylinder (504) away from the retaining ring (503).

5. The adaptive height-adjustable electrically retractable step according to claim 4, characterized in that: The support frame (502) can rotate freely inside the limiting frame (501), and the support frame (502) is roughly in the shape of an inverted "U".

6. The adaptive height-adjustable electric telescopic step according to claim 4, characterized in that: The hydraulic cylinder (504) can rotate freely inside the second limiting frame (505), and the retaining ring (503) connected to the movable end of the hydraulic cylinder (504) is located in the middle of the surface of the support frame (502).

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