Dustproof guide device for vehicle-mounted electric telescopic step plate

Abstract

The utility model discloses a dustproof guide device for a vehicle-mounted electric telescopic step plate, which comprises two groups of guide components symmetrically arranged on two sides of a main body frame, and the two groups of guide components are respectively connected with two sides of the step plate and are used for driving the step plate to do telescopic motion along track grooves on two sides of the main body frame, each guide assembly comprises a guide sliding block, a linear optical shaft, a guide sleeve and a sealing gasket, the sealing gasket is fixedly installed at the rear end of the track groove, the sealing gasket and the linear optical shaft are coaxially arranged, and the sealing gasket is used for being tightly attached to the guide sleeve at the rear end of the track groove, so that a hollow cavity in the guide sliding block is sealed. According to the electric telescopic step plate, dust can be effectively prevented, the clamping and filling problems of foreign matters (dust, silt and the like) are avoided, the bearing capacity and the anti-vibration performance of the electric telescopic step plate are improved, and the guiding stability of the electric telescopic step plate is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and particularly relates to a dust-proof guide device for a vehicle-mounted electric telescopic step plate. Background Art

[0002] As a new type of assistive device for getting on and off the vehicle, the electric retractable step board is designed to provide passengers with a more convenient and safer experience of getting on and off the vehicle. It is widely used in a variety of vehicle types, including commercial vehicles, off-road vehicles, SUVs, light buses, school buses, taxis, RVs, and ambulances. The electric retractable step board technology is developed on the basis of the traditional fixed step board. It can automatically extend and retract, greatly reducing the difficulty of getting on and off the vehicle and the threshold height, especially for the elderly, children, and passengers with limited mobility.

[0003] The guide device plays a vital role in the electric telescopic step, which ensures the stability and smoothness of the step during the extension and retraction process. However, in actual use, the guide device often gets stuck during the extension and retraction process due to the entry of foreign objects (such as soil, stones, small objects, etc.). It is necessary to regularly check and clean the foreign objects around the guide device and the telescopic step to ensure that the movement trajectory is unobstructed. The maintenance operation is cumbersome, which seriously affects the consumer's experience. In addition, as an important component of the electric telescopic step, the guide device needs to bear the weight of the step and the passengers or cargo on it during use. Therefore, consumers have high requirements for its load-bearing capacity, stability performance and anti-vibration ability. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model provides a vehicle-mounted electric telescopic step plate dust-proof guide device, which can not only effectively prevent dust and avoid the problem of foreign matter (dust, mud, etc.) being stuck, but also improve the load-bearing capacity and anti-vibration performance of the electric telescopic step plate, thereby ensuring the guiding stability of the electric telescopic step plate.

[0005] The main technical solutions adopted in this utility model are:

[0006] A dust-proof guide device for an electric telescopic step plate on a vehicle comprises two sets of guide components symmetrically mounted on both sides of a main frame, and the two sets of guide components are respectively connected to both sides of the step, and are used to drive the step to telescopically move along the track grooves on both sides of the main frame, wherein:

[0007] Each group of the guide components includes a guide slider, a linear optical axis, a guide sleeve and a sealing gasket, wherein one end of the linear optical axis is installed at the rear end of the track groove on the side of the main frame, and the other end is a cantilever arrangement; the guide slider is arranged at the cantilever end of the linear optical axis, and the side of the guide slider is fixedly installed with the side of the pedal, and the interior of the guide slider is a hollow cavity structure; the guide sleeve is embedded in the rear end of the guide slider, and the guide sleeve is provided with an axial hole for fitting through the linear optical axis; the sealing gasket is fixedly installed at the rear end of the track groove, and the sealing gasket is coaxially arranged with the linear optical axis, and is used to fit tightly with the guide sleeve at the rear end of the track groove, so that the internal hollow cavity of the guide slider is sealed.

[0008] Preferably, an auxiliary guide block is further provided on the side of the guide sleeve, and the auxiliary guide block cooperates with the side beam of the track groove to achieve auxiliary guidance.

[0009] Preferably, a bearing block I is provided at the front end of the bottom of the track groove, and the top surface of the bearing block I is in contact with the guide slider for bearing the guide slider.

[0010] Preferably, a bearing block II is fixedly provided on the top surface of the rear end of the guide sliding block, and the top surface of the bearing block II is in contact with the top surface in the track groove for supporting the force.

[0011] Preferably, a protective sleeve is installed at the front end of the guide sliding block, and a slope inclined toward the edge is provided on the circumference of the protective sleeve for cooperating with the lighting sleeve installed on the main frame to eliminate the gap.

[0012] Beneficial effects: The utility model provides a vehicle-mounted electric telescopic step plate dust-proof guide device, which has the following advantages:

[0013] (1) The utility model adopts a guide slider and a guide sleeve of a hollow cavity to cooperate with a linear optical axis to realize pedal guidance. At the same time, the guide sleeve is tightly fitted with a sealing gasket at the rear end of the track groove to realize the sealing of the hollow cavity inside the guide slider, thereby preventing foreign matter such as dust from entering the cavity inside the guide slider and causing jamming problems, thereby ensuring the smoothness and stability of the pedal telescopic movement, which is beneficial to reducing maintenance costs.

[0014] (2) In the present invention, by respectively arranging bearing blocks I and II at the front end of the track groove and the rear end of the guide slider, additional support can be provided for the guide slider, thereby enhancing its stability on the track groove, and in particular, improving the bearing capacity of the guide slider when the pedal is extended for operation.

[0015] (3) In the utility model, a slope is designed on the front protective cover to cooperate with the lighting cover, so that when the pedal is in a retracted state, the gap between the guide slider and the main frame can be reduced, thereby playing a role in eliminating the gap, which is beneficial to improving the anti-vibration ability of the electric telescopic step plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1;

[0017] Figure 2 This is a schematic diagram of the guide assembly structure of this embodiment 1;

[0018] Figure 3 This is a partial exploded schematic diagram of the guide assembly of this embodiment 1;

[0019] Figure 4 is a cross-sectional schematic diagram of the guide assembly of this embodiment 1;

[0020] Figure 5 This is a schematic structural diagram of the guide sleeve of Embodiment 1;

[0021] Figure 6 This is a schematic diagram of the installation of the sealing gasket of this embodiment 1;

[0022] Figure 7 This is a schematic diagram of the installation of the protective cover of this embodiment 1;

[0023] In the figure: main frame 1, track groove 1-1, side beam 1-2, guide assembly 2, guide slider 2-1, hollow cavity 2-11, linear optical axis 2-2, guide sleeve 2-3, shaft hole 2-31, sealing gasket 2-4, auxiliary guide block 2-5, protective sleeve 2-6, slope 2-61, pedal 3, bearing block I4, bearing block II5, lighting sleeve 6. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application. Example 1

[0025] A dust-proof guide device for a vehicle-mounted electric telescopic step plate, such as Figure 1 As shown, it includes two sets of guide components 2 symmetrically installed on both sides of the main frame 1, and the two sets of guide components 2 are respectively connected to both sides of the pedal 3, so as to drive the pedal 3 to perform telescopic movement along the track groove 1-1 on both sides of the main frame 1.

[0026] like Figure 2-4 As shown, each guide assembly 2 includes a guide slider 2-1, a linear optical axis 2-2, a guide sleeve 2-3 and a sealing gasket 2-4, wherein one end of the linear optical axis 2-2 is mounted on the rear end of the track groove 1-1 on the side of the main frame 1, and the other end is cantilevered; the guide slider 2-1 is arranged at the cantilever end of the linear optical axis 2-2, and the side of the guide slider 2-1 is fixedly mounted on the side of the pedal 3, and the interior of the guide slider 2-1 is a hollow cavity 2-11 structure; the guide sleeve 2-3 is embedded in the rear end of the guide slider 2-1, and the guide sleeve 2-3 is provided with an axial hole 2-31 for matching and passing through the linear optical axis 2-2; the sealing gasket 2-4 is fixedly mounted on the rear end of the track groove 1-1, as shown in FIG. Figure 6 As shown, the sealing gasket 2-4 is coaxially arranged with the linear optical axis 2-2, and is used to fit tightly with the guide sleeve 2-3 at the rear end of the track groove 1-1, so that the internal hollow cavity 2-11 of the guide slider 2-1 is sealed.

[0027] The pedal 3 is driven by a driving device (not shown) in the active frame 1 to perform telescopic movement in the track groove 1-1 along the guide assembly 2. The design principle of the guide assembly 2 in this embodiment 1 is as follows:

[0028] One end of the linear optical axis 2-2 is fixedly arranged at the rear end of the track groove 1-1, and the other end is cantilevered for installing the guide slider 2-1 with a hollow cavity 2-11 inside. At the same time, a guide sleeve 2-3 is embedded and installed at the rear end of the guide slider 2-1, and the guide sleeve 2-3 is provided with an axial hole that can pass through the linear optical axis 2-2. The guide sleeve 2-3 supports and guides the guide slider 2-1, and the guide slider 2-3 connected to the pedal 3 can perform telescopic movement on the linear optical axis 2-2. Since the guide slider 2-1 has a hollow cavity 2-11 structure inside, once foreign matter such as mud and sand enters it, it is easy to cause the sliding between the guide slider 2-1 and the linear optical axis 2-2 to become stuck, affecting the smoothness of the movement of the pedal 3. Therefore, in this embodiment 1, a sealing gasket 2-4 is provided at the rear end of the track groove, so that when the pedal 3 is in a retracted state (i.e., in a stored state), the guide sleeve 2-3 and the sealing gasket 2-4 can fit tightly. At this time, the hollow cavity 2-11 of the guide slider 2-1 is in a sealed state, which can effectively prevent the entry of foreign matter such as mud and sand.

[0029] In this embodiment 1, the front end of the guide slider 2-1 can be sealed or open, the interior is hollow, and the rear end opening is used for fitting and installing the guide sleeve.

[0030] In order to further improve the sliding stability of the guide slider 2-1 in the track groove 1-1, as Figure 5 As shown, an auxiliary guide block 2-5 may also be provided on the side of the guide sleeve 2-3, and the auxiliary guide block 2-5 cooperates with the side beam 1-2 of the track groove 1-1 to achieve auxiliary guidance.

[0031] In this embodiment 1, the guide sleeve 2-3 and the auxiliary guide block 2-5 can be integrally formed, or can be connected in an existing manner that can achieve fixed connection.

[0032] In this embodiment 1, Figure 2 As shown, a bearing block Ⅰ4 is provided at the front end of the bottom of the track groove 1-1, and the top surface of the bearing block Ⅰ4 is in contact with the guide slider 2-1, and is used to carry the guide slider 2-1. This is because the pedal 3 needs to bear a certain amount of weight when it is in the extended state (i.e., in the use state). Therefore, by providing the bearing block Ⅰ4 at the front end of the track groove 1-1, the bearing capacity of the guide slider 2-1 is improved, thereby ensuring that the pedal 3 can be stably extended and retracted when carrying heavy objects.

[0033] In this embodiment 1, a bearing block II5 is fixedly arranged on the top surface of the rear end of the guide slider 2-1, and the top surface of the bearing block II5 is in contact with the top surface of the track groove 1-1. The bearing block II5 can slide along with the guide slider 2-1. When the pedal 3 is fully extended, since the front end of the linear optical axis is cantilevered and cannot bear the load during loading, the bearing block II5 and the bearing block I4 bear the force together.

[0034] In this embodiment 1, Figure 7 As shown, a protective sleeve 2-6 is installed at the front end of the guide slider 2-1, and a slope 2-61 inclined toward the edge is provided on the circumference of the protective sleeve 2-6 for interference fit with the lighting sleeve 6 installed on the main frame 1 to eliminate the gap.

[0035] A lamp cover 6 is generally provided above the front end of the track groove 1-1 of the main frame 1, which belongs to conventional technology. However, an installation gap is easily generated between the track groove 1-1 and the guide slider 2-1. This gap can easily cause the pedal 3 in the storage state to shake and make abnormal noises during driving. Therefore, in this embodiment 1, a slope 2-61 is designed on the circumferential edge of the protective cover at the front end of the guide slider 2-1 (gradually tilted downward from the inside to the edge), so that the protective cover 2-6 can be interference-fitted with the lamp cover in the storage state to eliminate the gap, thereby reducing the vibration during driving.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A dust-proof guide device for a vehicle-mounted electric telescopic step plate, characterized in that: It includes two sets of guide components symmetrically installed on both sides of the main frame, and the two sets of guide components are respectively connected to the two sides of the pedal, and are used to drive the pedal to telescopically move along the track grooves on both sides of the main frame, wherein: Each group of the guide components includes a guide slider, a linear optical axis, a guide sleeve and a sealing gasket, wherein one end of the linear optical axis is installed at the rear end of the track groove on the side of the main frame, and the other end is a cantilever arrangement; the guide slider is arranged at the cantilever end of the linear optical axis, and the side of the guide slider is fixedly installed with the side of the pedal, and the interior of the guide slider is a hollow cavity structure; the guide sleeve is embedded in the rear end of the guide slider, and the guide sleeve is provided with an axial hole for fitting through the linear optical axis; the sealing gasket is fixedly installed at the rear end of the track groove, and the sealing gasket is coaxially arranged with the linear optical axis, and is used to fit tightly with the guide sleeve at the rear end of the track groove, so that the internal hollow cavity of the guide slider is sealed.

2. The dust-proof guide device for the vehicle-mounted electric telescopic step plate according to claim 1, characterized in that: An auxiliary guide block is also provided on the side of the guide sleeve, and the auxiliary guide block cooperates with the side beam of the track groove to achieve auxiliary guidance.

3. The dust-proof guide device for the vehicle-mounted electric telescopic step plate according to claim 1, characterized in that: A bearing block I is arranged at the front end of the bottom of the track groove, and the top surface of the bearing block I is in contact with the guide slider for bearing the guide slider.

4. The dust-proof guide device for a vehicle-mounted electric telescopic step plate according to claim 1, characterized in that: A bearing block II is fixedly arranged on the top surface of the rear end of the guide sliding block, and the top surface of the bearing block II is in contact with the top surface in the track groove for supporting the force.

5. The dust-proof guide device for the vehicle-mounted electric telescopic step plate according to claim 1, characterized in that: A protective sleeve is installed at the front end of the guide sliding block, and a slope inclined toward the edge is provided on the circumference of the protective sleeve, which is used to cooperate with the lighting sleeve installed on the main frame to achieve gap elimination.

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