Electric turnover structure for automobile seat headrest and headrest

Abstract

The utility model relates to the technical field of automobile accessories, and provides an electric turnover structure for an automobile seat headrest and the headrest, and the turnover structure comprises a fixing frame, a turnover mechanism and a turnover mechanism, the sliding block is movably connected to the fixed frame; one end of the connecting piece is rotationally connected to the fixing frame, and the other end is rotationally connected with the sliding block; the supporting rod is fixed in the headrest, and one end of the supporting rod penetrates through the automobile seat and is connected to the connecting piece; and the driving piece is connected to the fixing frame and is in transmission connection with the sliding block. Compared with the prior art, the automobile headrest has the advantages that the sliding block is automatically driven by the driving piece to move on the fixing frame, the supporting rod is driven by the connecting piece to be switched between the initial position and the maximum overturning position, and automatic folding and unfolding of the headrest relative to an automobile seat are achieved. In this way, the rotating speed of the headrest can be controlled, impact force generated when the headrest is turned over is avoided, and the safety of a driver and passengers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and particularly relates to an electric flipping structure and a headrest for an automobile seat headrest. Background Technique

[0002] With the increasing demands of passengers for riding comfort and vision, the flip-up headrest has been widely used in various automobiles at present because it can provide an open view for rear passengers (by flipping the front row headrest) and a view for the driver to observe the rear (by flipping the rear row headrest).

[0003] Most of the existing flipping mechanisms are manually operated. For example, the automatic folding headrest mechanism with multiple unlocking methods, with the patent number CN201621153902.X, includes a seat back that can pivot between a vertical and a folded horizontal position, and a flip-up headrest with a working position and a folded position. The headrest folding mechanism needs to include at least one output cable; when the cable is pulled, it will drive the headrest folding mechanism to act, so as to unlock the headrest folding mechanism. The above unlocking mechanism is a mechanical unlocking, so the speed of the headrest folding mechanism is uncontrollable, and the impact force of the headrest flipping at the moment of unlocking is relatively large. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an electric flipping structure and a headrest for an automobile seat headrest aiming at the current situation of the existing technology.

[0005] The technical solution adopted by the utility model to solve the above technical problem is to propose an electric flipping structure for an automobile seat headrest, which is used to drive the headrest to flip relative to the automobile seat. The flipping structure includes:

[0006] A fixed frame, which is connected inside the automobile seat;

[0007] A sliding block, which is movably connected to the fixed frame;

[0008] A connecting piece, one end of which is rotatably connected to the fixed frame, and the other end is rotatably connected to the sliding block;

[0009] A support rod, which is fixed inside the headrest. One end of the support rod passes through the automobile seat and is connected to the connecting piece. The support rod has an initial position and a maximum flipping position on the fixed frame;

[0010] A driving member, which is connected to the fixed frame and is in transmission connection with the sliding block, and is used to drive the sliding block to move on the fixed frame after being powered on;

[0011] When the sliding block moves relative to the fixed frame, the support rod can rotate between the initial position and the maximum flipping position by driving the connecting member to rotate relative to the fixed frame.

[0012] In the above-mentioned electric flipping structure for an automotive seat headrest, a lead screw is connected to the output end of the driving member, a nut is connected to the sliding block, and the nut is in threaded connection with the lead screw.

[0013] In the above-mentioned electric flipping structure for an automotive seat headrest, an installation groove and a baffle covering the installation groove are provided on the sliding block. The nut is located in the installation groove, and when the baffle is fixed on the sliding block, it is used to fix the nut in the installation groove.

[0014] In the above-mentioned electric flipping structure for an automotive seat headrest, guide grooves are provided on both side walls of the fixed frame. Connecting portions corresponding to the guide grooves one by one extend outward from both side walls of the sliding block. The connecting portions pass through the guide grooves and are connected to the connecting member.

[0015] In the above-mentioned electric flipping structure for an automotive seat headrest, the connecting member includes:

[0016] A connecting rod, one end of which is rotatably connected to the sliding block;

[0017] A connecting plate, one end of which is rotatably connected to the fixed frame, and the other end of which is rotatably connected to the other end of the connecting rod;

[0018] An outer cover plate, which is fixedly connected to the end face of the connecting plate away from the fixed frame. A fixed space is formed between the outer cover plate and the connecting plate;

[0019] A connecting sleeve, which is clamped in the fixed space, and the end of the support rod is clamped in the connecting sleeve.

[0020] In the above-mentioned electric flipping structure for an automotive seat headrest, at least two elastic buckles are provided at the end of the connecting sleeve. Corresponding card slots are provided on both the outer cover plate and the connecting plate, and the elastic buckles are mutually clamped with the card slots.

[0021] In the above-mentioned electric flipping structure for an automotive seat headrest, a cover plate is further included. The cover plate is connected to the automotive seat, and an installation hole for the support rod to pass through is provided on the cover plate. An arc portion is provided on the support rod, and the arc portion is used to prevent interference between the outer side wall of the support rod and the installation hole when the support rod rotates.

[0022] The present utility model also provides a headrest to solve the above technical problems, which includes the above-mentioned electric flipping structure for an automotive seat headrest.

[0023] Compared with the prior art, the advantages of the present utility model are that the driving member automatically drives the sliding block to move on the fixed frame, and the connecting member drives the support rod to switch between the initial position and the maximum flipping position, realizing the automatic folding and unfolding of the headrest relative to the automotive seat. In this way, the rotation speed of the headrest can be controlled, thereby avoiding the impact force generated during the flipping of the headrest and ensuring the safety of the driver and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of the support rod of the electric flipping structure for an automotive seat headrest of the present utility model when in the initial position;

[0025] Figure 2 is a perspective view of the support rod of the electric flipping structure for an automotive seat headrest of the present utility model when in the maximum flipping position;

[0026] Figure 3 is a perspective view when the sliding block is connected to the fixed frame;

[0027] Figure 4 is a perspective view of the connecting member;

[0028] Figure 5 is a perspective view when a partial structure of the connecting member is connected to the sliding block;

[0029] Figure 6 is an exploded view of a partial structure of the present utility model.

[0030] In the figures, 1, fixed frame; 2, sliding block; 3, connecting member; 4, support rod; 5, driving member; 6, lead screw; 7, nut; 8, installation groove; 9, baffle; 10, guiding groove; 11, connecting portion; 12, connecting rod; 13, connecting plate; 14, outer cover plate; 15, fixed space; 16, connecting sleeve; 17, elastic buckle; 18, clamping groove; 19, arc portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following are specific embodiments of the present utility model in combination with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0032] As Figures 1 to 6 shown, in this solution, the specific structure of the electric flipping structure for an automotive seat headrest and the application of this flipping structure in the headrest are described in detail. During operation, this flipping structure is mainly used to drive the headrest to flip relative to the automotive seat.

[0033] An electric flipping structure for an automotive seat headrest, comprising: a fixing frame 1, which is connected inside the automotive seat; a sliding block 2, which is movably connected to the fixing frame 1; a connecting member 3, one end of which is rotatably connected to the fixing frame 1 and the other end is rotatably connected to the sliding block 2; a support rod 4, which is fixed inside the headrest, one end of the support rod 4 passes through the automotive seat and is connected to the connecting member 3, and the support rod 4 has an initial position and a maximum flipping position on the fixing frame 1; a driving member 5, which is connected to the fixing frame 1 and is in transmission connection with the sliding block 2, and is used to drive the sliding block 2 to move on the fixing frame 1 after being powered on; when the sliding block 2 moves relative to the fixing frame 1, the support rod 4 can drive the connecting member 3 to rotate relative to the fixing frame 1, so as to rotate between the initial position and the maximum flipping position.

[0034] In this solution, the fixing frame 1 is installed on the skeleton of the automotive seat by welding or threaded connection. The upper part of the support rod 4 is embedded inside the headrest, and components such as a headrest skeleton, foam filler, and fabric cover are connected to the support rod 4 to form the headrest structure. The driving member 5 can be a motor or an electric actuator. When the support rod 4 is in the initial position (as shown in Figure 1 ), the sliding block 2 is located at the lower end of the fixing frame 1. At this time, the headrest is in the normal position, providing support for the head of the driver and passengers. When the driving member 5 is powered on and drives the sliding block 2 to move in the upward direction from bottom to top in Figure 1 , the sliding block 2 drives the support rod 4 to rotate through the connecting member 3, so that the support rod 4 rotates to the maximum flipping position (as shown in Figure 1 ). At this time, the headrest is flipped relative to the automotive seat, providing an open view for the rear passengers (by flipping the front row headrest) and a better view for the driver to observe the rear (by flipping the rear row headrest). Figure 2 ). At this time, the headrest is flipped relative to the automotive seat, providing an open view for the rear passengers (by flipping the front row headrest) and a better view for the driver to observe the rear (by flipping the rear row headrest).

[0035] In this solution, the driving member 5 automatically drives the sliding block 2 to move on the fixing frame 1, and drives the support rod 4 to switch between the initial position and the maximum flipping position through the connecting member 3, realizing the automatic folding and unfolding of the headrest relative to the automotive seat. In this way, the rotation speed of the headrest can be controlled, thus avoiding the impact force generated when the headrest flips, and ensuring the safety of the driver and passengers.

[0036] In order to realize the driving function of the driving member 5 on the sliding block 2, in this solution, a lead screw 6 is connected to the output end of the driving member 5, and a nut 7 is connected to the sliding block 2. The nut 7 is threadedly connected to the lead screw 6. During operation, when the driving member 5 is powered on and drives the lead screw 6 to rotate, the nut 7 threadedly connected to the lead screw 6 will drive the sliding block 2 to move along the axial direction of the lead screw 6, thereby realizing the movement of the sliding block 2 on the fixing frame 1.

[0037] In this solution, an installation groove 8 is provided on the sliding block 2 and a baffle 9 covering the installation groove 8. The nut 7 is located in the installation groove 8, and when the baffle 9 is fixed on the sliding block 2, it is used to fix the nut 7 in the installation groove 8. The settings of the installation groove 8 and the baffle 9 are used to facilitate the connection of the nut 7 on the sliding block 2.

[0038] Guide grooves 10 are provided on both side walls of the fixing frame 1. Connecting parts 11 corresponding to the guide grooves 10 one by one extend outward from both side walls of the sliding block 2. The connecting parts 11 pass through the guide grooves 10 and are connected to the connecting piece 3.

[0039] As Figure 3 shown, the fixing frame 1 is formed by a bottom plate and side plates connected to both sides of the bottom plate. A guide groove 10 is provided on each of the two side plates. Both sides of the sliding block 2 have connecting parts 11 inserted into the guide grooves 10. The settings of the guide grooves 10 and the connecting parts 11 are used to provide guidance for the sliding block 2 when the sliding block 2 moves relative to the fixing frame 1.

[0040] The connecting piece 3 includes: a connecting rod 12, one end of which is rotatably connected to the sliding block 2; a connecting plate 13, one end of which is rotatably connected to the fixing frame 1 and the other end of which is rotatably connected to the other end of the connecting rod 12; an outer cover plate 14, which is fixedly connected to the end face of the connecting plate 13 away from the fixing frame 1. A fixing space 15 is formed between the outer cover plate 14 and the connecting plate 13; a connecting sleeve 16, which is clamped in the fixing space 15, and the end of the support rod 4 is clamped in the connecting sleeve 16.

[0041] When the driving part 5 drives the sliding block 2 to move through the lead screw 6, the sliding block 2 makes the connecting rod 12 rotate by pushing the connecting rod 12, and then drives the connecting plate 13 to rotate relative to the fixing frame 1. When the connecting plate 13 rotates, it will rotate together with the outer cover fixed to it, and then drive the connecting sleeve 16 fixed in the fixing space 15 to rotate. The rotation of the connecting sleeve 16 will further drive the support rod 4 to rotate, so as to realize the switching of the support rod 4 between the initial position and the maximum turning position.

[0042] At least two elastic buckles 17 are provided at the end of the connecting sleeve 16. Corresponding card slots 18 to the elastic buckles 17 are provided on both the outer cover plate 14 and the connecting plate 13. The elastic buckles 17 and the card slots 18 are clamped with each other to realize the fixation of the connecting sleeve 16 in the fixing space 15.

[0043] This solution further includes a cover plate, which is connected to the vehicle seat. An installation hole for the support rod 4 to pass through is provided on the cover plate. An arc portion 19 is provided on the support rod 4. The arc portion 19 is used to prevent the outer side wall of the support rod 4 from interfering with the installation hole when the support rod 4 rotates, so that the installation hole on the cover plate can be made as small as possible, making the appearance of the vehicle seat more beautiful.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0045] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0046] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0048] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications, supplements, or use similar methods to replace them, but will not deviate from the scope defined by the spirit of the present utility model.

Claims

1. An electric flip structure for a car seat headrest, used to drive the headrest to flip relative to the car seat, characterized in that: The flip structure comprises: a fixing frame connected in the vehicle seat; A sliding block movably connected to the fixing frame; A connecting member, one end of which is rotatably connected to the fixing frame, and the other end of which is rotatably connected to the sliding block; A support rod fixed in the headrest, one end of the support rod passes through the car seat and is connected to the connecting member, and the support rod has an initial position and a maximum flip position on the fixing frame; A driving member, which is connected to the fixing frame and is in driving connection with the sliding block, and is used to drive the sliding block to move on the fixing frame after being powered on; The support rod can rotate between the initial position and the maximum flipping position by driving the connecting member to rotate relative to the fixing frame when the sliding block moves relative to the fixing frame.

2. The electric flip structure for a car seat headrest as claimed in claim 1, characterized in that: The output end of the driving member is connected with a screw rod, the sliding block is connected with a nut, and the nut is threadedly connected with the screw rod.

3. The electric flip structure for a car seat headrest as claimed in claim 2, characterized in that: The sliding block is provided with a mounting groove and a baffle covering the mounting groove. The nut is located in the mounting groove. When the baffle is fixed on the sliding block, it is used to fix the nut in the mounting groove.

4. The electric flip structure for a car seat headrest according to claim 1, characterized in that: Both side walls of the fixing frame are provided with guide grooves, and both side walls of the sliding block extend outwards with connecting parts corresponding to the guide grooves one by one, and the connecting parts pass through the guide grooves and are connected to the connecting piece.

5. The electric flip structure for a car seat headrest as claimed in claim 1, characterized in that: The connecting piece comprises: A connecting rod, one end of which is rotatably connected to the sliding block; A connecting plate, one end of which is rotatably connected to the fixing frame, and the other end of which is rotatably connected to the other end of the connecting rod; An outer cover plate, which is fixedly connected to the end surface of the connecting plate away from the fixing frame, and a fixed space is formed between the outer cover plate and the connecting plate; A connecting sleeve is clamped in the fixing space, and the end of the supporting rod is clamped in the connecting sleeve.

6. The electric flip structure for a car seat headrest as claimed in claim 5, characterized in that: At least two elastic buckles are arranged at the end of the connecting sleeve, and the outer cover plate and the connecting plate are both provided with slots corresponding to the elastic buckles, and the elastic buckles and the slots are mutually engaged.

7. The electric flip structure for a car seat headrest as claimed in claim 1, characterized in that: It also includes a cover plate, which is connected to the car seat. The cover plate is provided with a mounting hole for the support rod to pass through. The support rod is provided with an arc portion, and the arc portion is used to prevent the outer side wall of the support rod from interfering with the mounting hole when the support rod rotates.

8. A headrest, characterized in that: The invention comprises an electric flip structure for a car seat headrest as claimed in any one of claims 1 to 7.

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