Bottom layer two-stage translation mechanism for automobile welfare seat

Abstract

The utility model belongs to the technical field of automobile parts, and discloses a bottom-layer two-stage translation mechanism for an automobile welfare seat, which comprises a bottom-layer first-stage translation assembly, a bottom-layer second-stage translation assembly and a bottom-layer second-stage translation assembly, the transfer frame is installed on a first-stage sliding component of the bottom-layer first-stage translation assembly and moves along with the first-stage sliding component, the transfer frame is in driving connection with a first-stage driving component of the bottom-layer first-stage translation assembly, and the first-stage driving component drives the transfer frame to do telescopic motion along with the first-stage sliding component; and a bottom plate of the bottom-layer secondary translation assembly is mounted on the transfer frame and does telescopic motion along with the transfer frame. By arranging a series connection structure of the bottom-layer first-stage translation assembly and the bottom-layer second-stage translation assembly, two-stage relay type stretching and retracting are achieved, the stroke limitation of a single-stage translation mechanism is solved, and the moving requirements of welfare seats in various vehicle types are met.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and specifically relates to a bottom two-stage translation mechanism for automotive welfare seats. Background Technology

[0002] With the increasing demand for accessible travel, car welfare seats, which can smoothly rotate and move the seat out of the vehicle and lower its height through an electric telescopic drive system and a rotating lifting system, have become an important development direction in the human-centered design of automobiles, providing safe and convenient assistance for people with mobility impairments to get in and out of the vehicle.

[0003] However, in practical application and promotion, the telescopic drive technology of automotive welfare seats has fallen into a dual dilemma of space efficiency and vehicle universality, as follows:

[0004] (1) The car welfare seat needs to be moved forward a certain distance before it can be moved and rotated out of the car. However, the extension and retraction drive distance of the car welfare seat is limited. Therefore, it is difficult to ensure that the car welfare seat is consistent with other seats in the same row in the car in the initial state. This not only affects the neatness of the seat arrangement and the aesthetics of the interior, but also the user's seating space will be compressed and the comfort will be affected because the seat needs to be moved forward in the initial state.

[0005] (2) In order to increase the seating space, existing designs extend the retractable distance of the seat by increasing the length of the moving track. However, different car models have different installation spaces in the vehicle. Rigid long tracks are highly dependent on the car model customization, cannot meet various length requirements, have high production costs, and are not conducive to the large-scale popularization of welfare functions.

[0006] Therefore, there is an urgent need for a new type of translation mechanism that can achieve a sufficiently large effective extension stroke at a zero forward initial position and adapt to the installation space of various vehicle models. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a two-stage translation mechanism for automotive welfare seats. By setting a series structure of a first-stage translation component and a second-stage translation component, a two-stage relay-type extension and retraction is achieved, solving the travel limitation of a single-stage translation mechanism and meeting the movement needs of welfare seats in various vehicle models.

[0008] The main technical solution adopted in this utility model is as follows:

[0009] A two-stage translation mechanism for a car welfare seat includes:

[0010] The bottom-level translation component is installed in the track mounting groove of the carriage base;

[0011] The adapter is mounted on the first-level sliding component of the bottom-level first-level translation assembly and moves with the first-level sliding component. The adapter is driven to connect with the first-level driving component of the bottom-level first-level translation assembly, and the first-level driving component drives the adapter to extend and retract with the first-level sliding component.

[0012] And a bottom-level secondary translation component, the base plate of which is mounted on the adapter frame and moves telescopically with the adapter frame.

[0013] Preferably, the bottom-level translation component includes a first-level track component, a first-level sliding component, and a first-level drive component;

[0014] The primary track component includes two parallel primary tracks, each with a track groove, and a support frame installed between the two primary tracks.

[0015] The primary sliding component includes two sets of slide bars, which are respectively slidably installed in the track grooves of the two primary tracks;

[0016] The primary drive component is mounted on the support frame, and the drive end of the primary drive component is connected to the adapter frame to drive the adapter frame to move along the primary track.

[0017] Preferably, the primary sliding component further includes two sets of inverted T-shaped sliders, the two sets of inverted T-shaped sliders being respectively slidably installed in the track groove of the primary track, and the front ends of both sides of the adapter frame being respectively connected to the inverted T-shaped sliders.

[0018] Preferably, the primary track is provided with a bending limiting component for limiting the inverted T-shaped slider and the slide bar, and a gap is reserved between the inverted T-shaped slider and the bending limiting component.

[0019] Preferably, the primary drive component includes a drive motor, a lead screw, and a threaded mounting base. The drive motor is fixedly mounted on the support frame. One end of the lead screw is driven and connected to the output end of the drive motor, and the other end is rotatably mounted on the support frame. The threaded mounting base is fixedly connected to the adapter frame, and the threaded mounting base is threadedly engaged with the lead screw for drive.

[0020] Preferably, the structure of the bottom secondary translation component is the same as that of the bottom primary translation component.

[0021] Preferably, the underlying secondary translation component includes a secondary track component, a secondary sliding component, and a secondary drive component. The secondary track component is mounted on a base plate, and the base plate is mounted on a transfer frame. The secondary sliding component is slidably mounted on the secondary track component and is drivenly connected to the secondary drive component. The secondary drive component drives the car welfare seat to extend and retract along with the secondary sliding component.

[0022] Preferably, the secondary track component includes two parallel linear slide rails, and the secondary sliding component includes two sets of linear sliders, which are slidably mounted to the linear slide rails.

[0023] Preferably, the bottom-level primary translation component is provided with a primary wire harness drag chain, one end of which is fixedly mounted on the support frame, and the other end is connected to the primary sliding component of the bottom-level primary translation component; the bottom-level secondary translation component is provided with a secondary wire harness drag chain, one end of which is fixedly mounted on the base plate of the bottom-level secondary translation component, and the other end is connected to the secondary sliding component of the bottom-level secondary translation component.

[0024] Preferably, the support frame and / or the base plate are provided with cable chain guards, which are located on both sides of the primary cable harness cable chain and / or the secondary cable harness cable chain.

[0025] Beneficial effects: This utility model provides a bottom-level two-stage translation mechanism for automotive welfare seats, which has the following advantages:

[0026] (1) This utility model can be modified by combining the working conditions of the welfare seat and utilizing the original vehicle seat trolley and track. This not only reduces the space occupied in the carriage, but also increases the travel of the bottom of the original welfare seat. After the welfare seat is installed in the vehicle, the leg space is more spacious, greatly improving the comfort of passengers and the aesthetics of the seat installation.

[0027] (2) This utility model utilizes an inverted T-shaped slider to connect with the front of the adapter frame, which satisfies the off-center load requirement after the welfare seat extends out of the vehicle, and improves the connection strength between the adapter frame and the bottom first-level translation component when the welfare seat is under load. Attached Figure Description

[0028] Figure 1 This is an exploded view of the overall structure of Example 1;

[0029] Figure 2 This is an exploded view of the bottom-level translation component in Example 1;

[0030] Figure 3 This is a schematic diagram of the installation of the inverted T-shaped slider in Example 1;

[0031] Figure 4This is a schematic diagram of the overall application of Example 1;

[0032] In the diagram: Bottom-level primary translation component 1, primary sliding component 1-1, slide bar 1-11, inverted T-shaped slider 1-12, primary drive component 1-2, drive motor 1-21, threaded screw 1-22, threaded mounting seat 1-23, primary track component 1-3, primary track 1-31, bending limit component 1-311, track groove 1-32, support frame 1-33, primary wire harness drag chain 1-4, adapter frame 2, bottom-level secondary translation component 3, base plate 3-1, secondary track component 3-2, secondary sliding component 3-3, secondary drive component 3-4, secondary wire harness drag chain 3-5, drag chain guard plate 4, middle plate 5, welfare seat 6. Detailed Implementation

[0033] 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 some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application. Example 1

[0034] like Figure 1-2 As shown, a bottom-level two-stage translation mechanism for a car welfare seat includes:

[0035] The bottom-level translation component 1 is installed in the track mounting groove of the carriage base;

[0036] The adapter 2 is installed on the first-level sliding component 1-1 of the bottom first-level translation component 1 and moves with the first-level sliding component 1-1. The adapter 2 is driven to connect with the first-level driving component 1-2 of the bottom first-level translation component 1. The first-level driving component 1-2 drives the adapter 2 to move telescopically with the first-level sliding component 1-1.

[0037] And the bottom secondary translation component 3, the base plate 3-1 of the bottom secondary translation component 3 is installed on the adapter frame 2, and moves with the adapter frame 2 in a telescopic motion.

[0038] Combination Figure 2 The specific structure of the bottom-level translation component 1 will be further explained below:

[0039] The bottom-level translation component 1 includes a first-level sliding component 1-1, a first-level driving component 1-2, and a first-level track component 1-3;

[0040] Among them, the primary track component 1-3 includes two primary tracks 1-31 arranged in parallel to each other, each primary track 1-31 has a track groove 1-32, and a support frame 1-33 is installed between the two primary tracks 1-31;

[0041] The primary sliding component 1-1 includes two sets of slide bars 1-11, which are respectively slidably installed in the track grooves of the two primary tracks;

[0042] The primary drive component 1-2 is mounted on the support frame 1-33, and the drive end of the primary drive component 1-2 is connected to the adapter frame 2 to drive the adapter frame 2 to move along the primary track 1-31.

[0043] In this embodiment 1, the structure of the bottom-level translation component 1 can be, but is not limited to, the above structure. Alternatively, the original vehicle's telescopic track can be used to replace the bottom-level translation component 1 in this embodiment 1; that is, a transition frame 2 and a bottom-level secondary translation component 3 can be installed on the basis of the original telescopic track.

[0044] In this embodiment 1, in order to improve the connection strength between the front end of the adapter frame 2 and the bottom-level translation component 1 when the seat is loaded, such as Figure 3 As shown, the primary sliding component 1-1 also includes two sets of inverted T-shaped sliders 1-12. The two sets of inverted T-shaped sliders 1-12 are respectively slidably installed in the track grooves 1-32 of the primary track 1-31, and the front ends of both sides of the adapter 2 are respectively connected to the inverted T-shaped sliders 1-12 to meet the off-center load requirements after the welfare seat extends out of the vehicle.

[0045] The primary track 1-31 is equipped with a bending limiter 1-311 to limit the inverted T-shaped slider 1-12 and the slide bar 1-11, and a gap is reserved between the inverted T-shaped slider 1-12 and the bending limiter 1-311. When the seat is loaded, the elastic deformation of the primary track 1-31 can just eliminate the gap between the two.

[0046] In this embodiment 1, the primary drive component 1-2 includes a drive motor 1-21, a threaded screw 1-22, and a threaded mounting base 1-23. The drive motor 1-21 is fixedly mounted on the support frame 1-33. One end of the threaded screw 1-22 is driven and connected to the output end of the drive motor 1-21, and the other end is rotatably mounted on the support frame 1-33. The threaded mounting base 1-23 is threadedly engaged with the threaded screw 1-22 for drive, and the threaded mounting base 1-23 is fixedly connected to the adapter frame 2. In this embodiment 1, the primary drive component 1-2 controls the rotation of the threaded screw 1-22, thereby driving the adapter frame 2 connected to the threaded mounting base 1-23 to perform telescopic movement along the axial direction of the threaded screw 1-22 along with the threaded mounting base 1-23.

[0047] The bottom secondary translation component 3 includes a secondary track component 3-2, a secondary sliding component 3-3, and a secondary drive component 3-4. The secondary track component 3-2 is mounted on the base plate 3-1, and the base plate 3-1 is mounted on the adapter 2. The secondary sliding component 3-3 is slidably mounted on the secondary track component 3-2. The secondary drive component 3-4 drives the car welfare seat to move in a telescopic motion along with the secondary sliding component 3-3.

[0048] The secondary track component 3-2 includes two parallel linear slide rails 3-21, and the secondary sliding component 3-3 includes two sets of linear sliders 3-31, which are slidably installed with the linear slide rails 3-21.

[0049] like Figure 1 and 2 As shown, a primary wire harness drag chain 1-4 is provided on the bottom-level primary translation component 1, with one end of the primary wire harness drag chain 1-4 fixedly mounted on the support frame 1-33, and the other end connected to the primary sliding component 1-1 of the bottom-level primary translation component 1; a secondary wire harness drag chain 3-5 is provided on the bottom-level secondary translation component 3, with one end of the secondary wire harness drag chain 3-5 fixedly mounted on the base plate 3-1 of the bottom-level secondary translation component 3, and the other end connected to the secondary sliding component 3-3 of the bottom-level secondary translation component 3. Both the primary wire harness drag chain 1-4 and the secondary wire harness drag chain 3-5 are used to place wire harnesses.

[0050] A cable chain guard plate 4 is provided on one side of the support frame 1-33 and / or the base plate 3-1. The cable chain guard plate 4 is located on the outside of the primary cable harness cable chain 1-4 and / or the secondary cable harness cable chain 3-5.

[0051] When the welfare seat moves forward and backward throughout its entire travel, the cable chain guard plate 4 always blocks the cable chain between the cable harness and the sliding parts, effectively preventing the cable chain from getting stuck in the gap between the sliding parts due to the bending stress of the cable harness inside the cable chain and causing damage.

[0052] The working principle of Example 1 is as follows:

[0053] like Figure 4 As shown, by controlling the primary drive component 1-2 of the bottom-level primary translation component 1, the adapter frame 2 and the bottom-level secondary translation component 3 mounted on the adapter frame 2 move together along the primary sliding component 1-1 and the primary track component 1-3 in a translational and telescopic motion. Simultaneously, the secondary drive component 3-2 of the bottom-level secondary translation component 3 can be controlled to move the welfare seat 6 mounted on the bottom-level secondary translation component 3 via the middle plate 5 in a translational and telescopic motion along the secondary track component 3-3 along the secondary sliding component 3-1. Since the bottom-level primary translation component 1 and the bottom-level secondary translation component 3 are independently controlled and driven, the telescopic and translational movements can be adjusted simultaneously, further improving the seat adjustment efficiency. Example 2

[0054] Compared with Embodiment 1, the specific structure of the bottom-level secondary translation component 3 is different, while the rest of the structure is the same. The structure of the bottom-level secondary translation component 3 can be the same as that of the bottom-level primary translation component 1.

[0055] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A two-stage translation mechanism for a bottom layer of a well-being seat for a vehicle, characterized by, include: The bottom-level translation component is installed in the track mounting groove of the carriage base; The adapter is mounted on the first-level sliding component of the bottom-level first-level translation assembly and moves with the first-level sliding component. The adapter is driven to connect with the first-level driving component of the bottom-level first-level translation assembly, and the first-level driving component drives the adapter to extend and retract with the first-level sliding component. And a bottom-level secondary translation component, the base plate of which is mounted on the adapter frame and moves telescopically with the adapter frame.

2. The two-stage translation mechanism for a well-being seat of an automobile according to claim 1, characterized by, The underlying primary translation component includes a primary track component, a primary sliding component, and a primary drive component; The primary track component includes two parallel primary tracks, each with a track groove, and a support frame installed between the two primary tracks. The primary sliding component includes two sets of slide bars, which are respectively slidably installed in the track grooves of the two primary tracks; The primary drive component is mounted on the support frame, and the drive end of the primary drive component is connected to the adapter frame to drive the adapter frame to move along the primary track.

3. The two-stage translation mechanism for a well-being seat of an automobile according to claim 2, characterized by, The primary sliding component also includes two sets of inverted T-shaped sliders. The two sets of inverted T-shaped sliders are respectively slidably installed in the track groove of the primary track, and the front ends of both sides of the adapter are respectively connected to the inverted T-shaped sliders.

4. The two-stage translation mechanism for a welfare seat of an automobile according to claim 3, characterized by The primary track is equipped with a bending limiting component to limit the inverted T-shaped slider and the slide bar, and a gap is reserved between the inverted T-shaped slider and the bending limiting component.

5. The two-stage translation mechanism for a well-being seat of an automobile according to claim 2, characterized by, The primary drive component includes a drive motor, a lead screw, and a threaded mounting base. The drive motor is fixedly mounted on the support frame. One end of the lead screw is driven and connected to the output end of the drive motor, and the other end is rotatably mounted on the support frame. The threaded mounting base is fixedly connected to the adapter frame, and the threaded mounting base is threadedly engaged with the lead screw for drive.

6. The two-stage translation mechanism for a well-being seat of an automobile according to claim 1, characterized by, The structure of the bottom-level secondary translation component is the same as that of the bottom-level primary translation component.

7. The two-stage translation mechanism for a well-being seat of an automobile according to claim 1, characterized by, The underlying secondary translation component includes a secondary track component, a secondary sliding component, and a secondary drive component. The secondary track component is mounted on a base plate, which is mounted on a transfer frame. The secondary sliding component is slidably mounted on the secondary track component and is driven by the secondary drive component. The secondary drive component drives the car welfare seat to extend and retract along with the secondary sliding component.

8. The two-stage translation mechanism for a well-being seat of an automobile according to claim 7, characterized by, The secondary track component includes two parallel linear slide rails, and the secondary sliding component includes two sets of linear sliders, which are slidably mounted to the linear slide rails.

9. The two-stage translation mechanism for a well-being seat of an automobile according to claim 1, characterized by, The bottom-level primary translation component is provided with a primary wire harness drag chain, one end of which is fixedly installed on the support frame, and the other end is connected to the primary sliding component of the bottom-level primary translation component; the bottom-level secondary translation component is provided with a secondary wire harness drag chain, one end of which is fixedly installed on the base plate of the bottom-level secondary translation component, and the other end is connected to the secondary sliding component of the bottom-level secondary translation component.

10. The two-stage translation mechanism for a well-being seat of an automobile according to claim 2, characterized by, The support frame and / or base plate are each provided with a cable chain guard plate, which is located on both sides of the primary cable harness cable chain and / or the secondary cable harness cable chain.

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