Bidirectional headrest structure assembly with wire harness capable of being freely adjusted

Abstract

The utility model belongs to the technical field of seats, and provides a freely adjustable two-way headrest structure assembly with a wire harness, which comprises a headrest framework arranged in a headrest, and the headrest framework can be connected with an electronic device; a plurality of locking grooves are formed in the headrest supporting rod at intervals in the axis direction of the headrest supporting rod; the sliding seat assembly is provided with a sliding seat in a sliding state and a locking state; a containing part is formed on the transverse block, one end of the containing part is communicated with the headrest supporting rod, and an opening in the other end of the containing part faces the headrest framework. Compared with the prior art, the headrest has the advantages that the wire harness extending into the headrest supporting rod is locally fixed through the containing part, and the wire harness connected to an electronic device is arranged between the headrest framework and the sliding seat, so that the height of the headrest can be adjusted on the basis that the normal height adjusting function of the headrest is realized; and the problems of dislocation, winding and the like of the wire harness between the headrest supporting rod and the seat backrest can be avoided, the stability is improved, and a guarantee is provided for normal use of electronic devices in the headrest when the headrest is adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of seats, and in particular relates to a two-way headrest structure assembly which can be freely adjusted with a wire harness. Background Art

[0002] Two-way headrests (headrests that can be adjusted up and down) are often used in the front and rear seats of cars. When in use, they can meet the riding comfort of the passengers in the car and the passive safety performance of the headrests.

[0003] Taking into account the diversified functions of new car models on the market and the actual needs of passengers, it is necessary to add microphones, speakers or built-in motors in the headrest to achieve diversified uses. In this headrest structure, most of the wiring harnesses connected to the electronic devices pass through the hollow headrest support rod and are connected to the devices inside the seat. However, as the headrest is adjusted in height, the wiring harnesses are bound to gather at the end of the headrest support rod due to the pulling force and relaxation force during the adjustment of the headrest, which makes it easy for the wiring harnesses to be misplaced and entangled. It is impossible to ensure that the headrest can be freely adjusted in height and complete the wiring harness arrangement of various strokes of the two-way headrest. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a two-way headrest structure assembly which can be freely adjusted with a wiring harness.

[0005] The utility model solves the technical problem by adopting a technical solution of providing a two-way headrest structure assembly with a harness that can be freely adjusted, comprising: a headrest frame arranged in the headrest, and an electronic device can be connected to the headrest frame;

[0006] A headrest support rod, one end of which is inserted into the seat back, and the other end of which extends into the headrest, wherein the headrest support rod is provided with a plurality of locking grooves at intervals along the axial direction thereof;

[0007] A sliding seat assembly is arranged on the headrest support rod and connected to the headrest frame, and the sliding seat assembly has a sliding seat in a sliding state and a locked state; in the locked state, the sliding seat is movably engaged in the locking groove to limit the movement of the headrest relative to the headrest support rod; in the sliding state, the sliding seat can move along the axis direction of the headrest support rod to drive the headrest to be adjusted to a desired height;

[0008] A transverse block connected to the top end of the headrest support rod, the sliding seat movably passes through the transverse block, a receiving portion is formed on the transverse block, one end of the receiving portion is connected to the headrest support rod, and the other end is open toward the headrest frame, and the wiring harness on the electronic device can be located between the sliding seat and the headrest frame, and extend into the headrest support rod along the receiving portion;

[0009] When the sliding seat drives the headrest to move along the axial direction of the headrest support rod, the wire harness located in the accommodating portion remains stationary relative to the headrest support rod.

[0010] In the above-mentioned two-way headrest structure assembly that can be freely adjusted with a wiring harness, the transverse block is also provided with a tongue depressor extending to the top of the accommodating portion, and a limiting block is formed at the bottom of the tongue depressor. The tongue depressor is movably pressed against the top wall of the wiring harness, so that the limiting block that is movably pressed against one side of the wiring harness can fix the wiring harness in the accommodating portion.

[0011] In the above-mentioned two-way headrest structure assembly with freely adjustable wiring harness, a wiring harness connector is detachably connected to the headrest frame, and the wiring harness connector is connected to two sections of the wiring harness, one section of which is connected to the electronic device, and the other section spans the sliding seat and partially extends into the accommodating portion.

[0012] In the above-mentioned two-way headrest structure assembly that can be freely adjusted with a harness, the transverse block includes:

[0013] A connecting portion, on which a fixing wire is arranged, and a connecting groove is formed on the headrest support rod, and when the connecting portion is movably sleeved on the headrest support rod, the fixing wire can be snapped into the connecting groove to lock the connecting portion on the headrest support rod;

[0014] The symmetrically arranged guide portion is arranged on the outer wall of the connecting portion. The guide portion is arranged in an L-shape and forms a semi-guide cavity with the connecting portion. The opening on one side of the semi-guide cavity is used to accommodate the sliding seat. The opening in the vertical direction of the semi-guide cavity can allow the sliding seat to reciprocate along the axial direction of the headrest support rod.

[0015] In the above-mentioned two-way headrest structure assembly that can be freely adjusted with a harness, the sliding seat assembly also includes:

[0016] An unlocking block is movably arranged in the sliding seat, an unlocking button is arranged on the headrest, one end of the unlocking block extends out of the side wall of the sliding seat, and the unlocking button is movably pressed against the unlocking block to push the unlocking block to move in a horizontal direction relative to the sliding seat;

[0017] A locking steel wire, which is movably sleeved on the headrest support rod and arranged in the sliding seat, the unlocking block is provided with a waist-shaped hole, one end of the locking steel wire is connected to the sliding seat, and the other end is movably clamped in the locking groove and extends into the waist-shaped hole;

[0018] An elastic member is arranged parallel to the moving direction of the unlocking block, one end of the elastic member is pressed against the unlocking block, and the other end is connected to the sliding seat.

[0019] In the above-mentioned two-way headrest structure assembly that can be freely adjusted with a wiring harness, an extension block extending into the sliding seat is formed on the unlocking block, a first connecting column is provided on the extension block, a second connecting column is provided in the sliding seat, one end of the elastic member is sleeved and connected to the first connecting column, and the other end is sleeved and connected to the second connecting column.

[0020] In the above-mentioned two-way headrest structure assembly that can be freely adjusted with a wiring harness, a guide groove is formed in the sliding seat, an anti-slip block is provided at the open end of the guide groove, and guide blocks are formed on both sides of the unlocking block. The unlocking block can be slid in the guide groove along the horizontal direction due to the guide block, and the guide block is restricted in the guide groove by the anti-slip block to prevent the unlocking block from detaching from the sliding seat.

[0021] In the above-mentioned two-way headrest structure assembly that can be freely adjusted with a harness, it also includes:

[0022] An adjustment sleeve, wherein a guide hole is provided in the sliding seat, a limiting convex block is formed on the inner wall of the guide hole, and a plurality of arc-shaped blocks distributed in an annular shape are formed on the adjustment sleeve, wherein the arc-shaped blocks protrude toward the inside of the adjustment sleeve, and when the adjustment sleeve is placed in the guide hole and pressed against the limiting convex block, the adjustment sleeve can be synchronously and movably sleeved on the headrest support rod along with the sliding seat, so that the arc-shaped blocks can be movably pressed against the headrest support rod;

[0023] A fixed cover, a receiving groove is also provided on the sliding seat, the receiving groove is located above the guide hole and is interconnected with the guide hole, and connecting buckles are provided at both ends of the fixed cover, and the connecting buckles can lock the fixed cover in the sliding seat when the fixed cover is movably sleeved on the headrest support rod and placed in the receiving groove.

[0024] In the above-mentioned two-way headrest structure assembly with freely adjustable wiring harness, a plurality of symmetrically arranged fixing buckles are formed on the headrest frame, and the fixing buckles can partially restrict the wiring harness between the electronic device and the sliding seat to the headrest frame.

[0025] In the above-mentioned two-way headrest structure assembly that can be freely adjusted with a wiring harness, a plurality of installation grooves are arranged on the sliding seat, and a positioning column and a locking buckle are arranged on the headrest frame. The positioning column can limit the installation position of the sliding seat on the headrest frame when the positioning column is inserted into the installation groove; the locking buckle can prevent the sliding seat from moving relative to the headrest frame when the locking buckle is movably connected to the installation groove.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] (1) The utility model discloses a two-way headrest structure assembly with freely adjustable wiring harness. The horizontal block provided at the top end of the headrest support rod enables the wiring harness extending into the headrest support rod to be partially fixed by the accommodating portion during the height adjustment of the sliding seat along with the headrest. The wiring harness connected to the electronic device is placed between the headrest frame and the sliding seat to ensure that the height adjustment function of the headrest can be normally realized. The wiring harness can also be prevented from being misaligned or entangled between the headrest support rod and the seat back. The stability of the headrest structure is greatly improved, and the electronic device in the headrest can be normally used when the headrest is adjusted.

[0028] (2) Both the adjustment sleeve and the fixed cover can guide the sliding seat when it moves along the axis of the headrest support rod. At the same time, the arc blocks with different curvature degrees are pressed against the headrest support rod to adjust the interference between them and the headrest support rod, thereby meeting the tightness required by different customers during adjustment. The connection between the fixed cover and the sliding seat, on the one hand, prevents the adjustment sleeve from detaching, and on the other hand, improves the stability of the overall structure, ensuring the smoothness and stability of the sliding seat when it moves relative to the headrest support rod.

[0029] (3) The symmetrically arranged fixing buckles can partially fix the wiring harness between the electronic device and the sliding seat. On the basis of ensuring the normal height adjustment function of the headrest, sufficient wiring harness can cross the sliding seat and extend into the accommodating portion, effectively avoiding the phenomenon of the wiring harness being misaligned and entangled between the headrest frame and the sliding seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a stereogram of the present application;

[0031] Figure 2 It is a view of the installation structure between the transverse block, the headrest support rod and the headrest frame;

[0032] Figure 3 This is a view of the installation structure between the sliding seat, wiring harness and headrest support rod;

[0033] Figure 4 yes Figure 3 Rear view of

[0034] Figure 5 yes Figure 4 Sectional view at AA in the middle;

[0035] Figure 6 This is a view of the installation structure between the adjustment sleeve, the fixed cover and the sliding seat.

[0036] In the figure, 1, headrest; 10, headrest frame; 100, fixing buckle; 101, positioning column; 102, locking buckle; 11, electronic device; 12, wiring harness connector; 13, unlocking button;

[0037] 2. Headrest support rod; 20. Locking groove; 21. Connection groove;

[0038] 3. Sliding seat assembly; 30. Sliding seat; 300. Second connecting column; 301. Guide groove; 302. Anti-drop block; 303. Guide hole; 304. Limiting convex block; 305. Accommodating groove; 306. Mounting groove; 31. Unlocking block; 310. Waist-shaped hole; 311. Extension block; 312. First connecting column; 313. Guide block; 32. Locking wire; 33. Elastic member;

[0039] 4. lateral block; 40. accommodating portion; 41. tongue depressor; 410. limiting block; 42. connecting portion; 43. fixing wire; 44. guiding portion; 45. semi-guiding cavity; 46. arc convex block;

[0040] 5. Adjustment sleeve; 50. Arc block;

[0041] 6. Fixing cover; 60. Connecting buckle. DETAILED DESCRIPTION

[0042] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0043] like Figures 1 to 6As shown, the utility model is a two-way headrest 1 structure assembly that can be freely adjusted with a harness, comprising: a headrest frame 10 arranged in the headrest 1, and an electronic device 11 can be connected to the headrest frame 10; a headrest support rod 2, one end of which is inserted into the seat back, and the other end extends into the headrest 1, and the headrest support rod 2 is provided with a plurality of locking grooves 20 at intervals along its axial direction; a sliding seat assembly 3, which is arranged on the headrest support rod 2 and connected to the headrest frame 10, and the sliding seat assembly 3 has a sliding seat 30 in a sliding state and a locking state; in the locked state, the sliding seat 30 is movably engaged in the locking groove 20 to limit the movement of the headrest 1 relative to the headrest support rod 2; in the sliding ... locking state, the sliding seat 30 is movably engaged in the locking groove 20 to limit the movement of the headrest 1 relative to the headrest support rod 2. When in the dynamic state, the sliding seat 30 can move along the axial direction of the headrest support rod 2 to drive the headrest 1 to be adjusted to the required height; the transverse block 4 is connected to the top of the headrest support rod 2, and the sliding seat 30 movably passes through the transverse block 4. An accommodating portion 40 is formed on the transverse block 4. One end of the accommodating portion 40 is connected to the headrest support rod 2, and the other end is open toward the headrest frame 10. The wiring harness on the electronic device 11 can be located between the sliding seat 30 and the headrest frame 10, and extend into the headrest support rod 2 along the accommodating portion 40; when the sliding seat 30 drives the headrest 1 to move along the axial direction of the headrest support rod 2, the wiring harness located in the accommodating portion 40 remains stationary relative to the headrest support rod 2.

[0044] This solution is mainly aimed at a headrest 1 with built-in electronic devices 11 (such as speakers, microphones or motors, etc.) and an adjustable function. In order to realize the wiring harness arrangement of various different travels of the two-way headrest 1, on the basis of ensuring the height adjustment function of the headrest 1, the wiring harness is avoided to be entangled. Specifically, Figures 1 to 4 As shown, when the sliding seat assembly 3 unlocks the sliding seat 30 (ie, the sliding seat 30 is disengaged from the locking groove 20), the sliding seat 30 can move along the axis direction of the headrest support rod 2 (ie, Figure 1 The headrest 1 is moved in the vertical direction. Due to the connection between the sliding seat 30 and the headrest frame 10, the sliding seat 30 can drive the headrest 1 to be adjusted to the height required by the customer during the movement. At this time, the sliding seat 30 is again movably engaged with the locking groove 20 of the corresponding height, thereby fixing the headrest 1 at the required height to meet the customer's usage needs. In this process, the present solution is equipped with a transverse block 4 on the headrest support rod 2. Figures 2 to 4During the sliding process of the sliding seat 30 along the axial direction of the headrest support rod 2, the sliding seat 30 can penetrate the transverse block 4 (that is, there will be no interference between the two). Since the headrest frame 10 is equipped with an electronic device 11, the present invention, on the one hand, places the wiring harness connected to the electronic device 11 between the headrest frame 10 and the sliding seat 30. On the other hand, on the basis of ensuring that the wiring harness has a sufficient amount to cross the sliding seat 30 (here, it means that the wiring harness does not affect the sliding of the sliding seat 30 within a normal range), a partial wiring harness is extended into the headrest support rod 2, and then the wiring harness is partially fixed by the accommodating portion 40 on the transverse block 4, so that the wiring harness will not be tightened or relaxed when it is in the hollow headrest support rod 2. That is to say, When the headrest 1 is adjusted in height along with the sliding seat 30, the wiring harness between the electronic device 11 and the sliding seat 30 moves synchronously therewith. While ensuring that the wiring harness can provide the sliding seat 30 with sufficient space for sliding, the wiring harness extending in front of the headrest support rod 2 is further fixed by the accommodating portion 40 on the transverse block 4. Since the transverse block 4 itself remains stationary relative to the headrest support rod 2, this structure can avoid problems such as misalignment and entanglement of the wiring harness between the headrest support rod 2 and the seat back while ensuring that the headrest 1 can normally realize the height adjustment function. This greatly improves the stability of the headrest 1 structure and provides a guarantee for the normal use of the electronic device 11 in the headrest 1 when the headrest 1 is adjusted.

[0045] The transverse block 4 is also provided with a tongue depressor 41 extending to the top of the accommodating portion 40, and a limiting block 410 is formed at the bottom of the tongue depressor 41. The tongue depressor 41 is movably pressed against the top wall of the wiring harness, so that the limiting block 410 movably pressed against one side of the wiring harness can fix the wiring harness in the accommodating portion 40.

[0046] Further, if Figures 2 to 4 As shown, the accommodating portion 40 in the present scheme is set with a groove-shaped structure. When a sufficient amount of wiring harness crosses the sliding seat 30 and extends into the accommodating portion 40, the tongue depressor 41 can press the wiring harness into the accommodating portion 40. At the same time, the limit block 410 located on one side of the bottom of the tongue depressor 41 is just tangent to and presses against one side of the wiring harness, thereby fixing the wiring harness in the accommodating portion 40. That is to say, when the headrest 1 is adjusted in height along the axial direction of the headrest support rod 2 with the sliding seat 30, the wiring harness pre-extended into the top end of the headrest support rod 2 can be partially fixed by the transverse block 4, and the wiring harness between the headrest support rod 2 and the seat back will not be entangled or misaligned. On the basis of ensuring that there are sufficient wiring harnesses for the sliding seat 30 to normally drive the headrest 1 to adjust its height, the wiring harness between the electronic device 11 and the sliding seat 30 will also be adjusted in height with the headrest 1, so there will be no entanglement, which effectively ensures that the electronic device 11 can be used normally when the headrest 1 is adjusted in height, thereby meeting the usage requirements of customers.

[0047] It should be noted that the shape of the accommodating portion 40 in this solution is not limited to the one in this embodiment, and other shapes may be used to replace it, for example, a through-hole structure is combined with buckles movably arranged at both ends to fix the wiring harness, and other methods may be used to replace it.

[0048] A wiring harness connector 12 is detachably connected to the headrest frame 10 . The wiring harness connector 12 is connected to two sections of wiring harness, one section of which is connected to the electronic device 11 , and the other section spans the sliding seat 30 and partially extends into the accommodating portion 40 .

[0049] Further reference Figure 2 In the present embodiment, the wiring harness connector 12 and the electronic device 11 can be connected to the headrest frame 10 by means of a buckle (not shown in the figure), which provides convenience for workers to install and disassemble during subsequent replacement and maintenance; wherein, the wiring harness between the wiring harness connector 12 and the electronic device 11 is fixed on the headrest frame 10, and the wiring harness of the wiring harness connector 12 pre-extending into the headrest support rod 2 is firstly reserved with sufficient margin (not shown in the figure), so as to ensure that the two-way headrest 1 can be freely adjusted at different heights, avoiding the position interference between the wiring harness crossing the sliding seat 30 and the sliding seat 30, thereby affecting the normal adjustment function of the headrest 1, and the wiring harness ready to enter the headrest support rod 2 is partially fixed and restricted by the above-mentioned accommodating portion 40. In other words, the wiring harness in the accommodating portion 40 and the wiring harness in the seat back will not be stretched or relaxed with the adjustment of the headrest 1, thereby avoiding the phenomenon of entanglement and misalignment of the wiring harness.

[0050] Preferably, the present invention further forms a plurality of symmetrically arranged fixing buckles 100 on the headrest frame 10, referring to Figure 2 The buckle ends of the two fixing buckles 100 are arranged opposite to each other, that is, a fixed cavity is formed between the two fixing buckles 100. Therefore, the two fixing buckles 100 in this solution can move in directions away from each other (that is, the opening end of the fixed cavity gradually becomes larger) when the wiring harness crosses. When the wiring harness enters the fixed cavity, the two fixing buckles 100 can be reset to a state of being close to each other by virtue of their own elastic deformation ability, thereby partially restricting the wiring harness between the electronic device 11 and the sliding seat 30 on the headrest frame 10. It is worth noting that for the wiring harness with sufficient margin between the above-mentioned wiring harness connector 12 and the headrest support rod 2, the symmetrically arranged fixing buckle 100 structure can also be used, on the premise of ensuring that it will not affect the normal height adjustment of the headrest 1 driven by the sliding seat 30, so as to further improve the stability of the wiring harness when the headrest 1 is adjusted.

[0051] The transverse block 4 includes: a connecting portion 42, on which a fixing steel wire 43 is arranged, and a connecting groove 21 is formed on the headrest support rod 2. When the connecting portion 42 is movably sleeved on the headrest support rod 2, the fixing steel wire 43 can be snapped into the connecting groove 21 to lock the connecting portion 42 on the headrest support rod 2; a symmetrically arranged guide portion 44, which is arranged on the outer wall of the connecting portion 42, and the guide portion 44 is L-shaped and forms a semi-guide cavity 45 with the connecting portion 42. The opening on one side of the semi-guide cavity 45 is used to accommodate the sliding seat 30, and the opening in the vertical direction of the semi-guide cavity 45 allows the sliding seat 30 to reciprocate along the axial direction of the headrest support rod 2.

[0052] On the basis of the above, if Figure 1 , Figure 3 as well as Figure 4 As shown, the transverse block 4 is composed of a connecting portion 42 and a guiding portion 44, wherein the connecting portion 42 as a whole can be sleeved on the top of the headrest support rod 2. Since the headrest support rod 2 is provided with a connecting groove 21, when the fixing wire 43 on the connecting portion 42 is at the same horizontal height as the connecting groove 21, the fixing wire 43 can be snapped into the connecting groove 21, and then the connecting portion 42 is fixed to the headrest support rod 2, ensuring that the wiring harness located in the accommodating portion 40 can maintain a stable posture with the headrest support rod 2; and the guiding portion 44 is arranged in an L-shape as a whole, and the guiding portion 44 and the connecting portion 42 in this scheme are symmetrically arranged, such as Figure 3 and Figure 4 As shown, the L-shaped guide portion 44 and the connecting portion 42 form a semi-guide cavity 45, and the sliding seat 30 can be accommodated between the two L-shaped guide portions 44 to ensure that the sliding seat 30 will not drive the guide portion 44 and the connecting portion 42 to move synchronously during the sliding process. At the same time, the L-shaped guide portion 44 can provide the sliding seat 30 with a semi-guide cavity 45. Figure 4 The guiding effect of the headrest support rod 2 when it moves back and forth in the axial direction prevents the headrest 1 from tilting during the height adjustment process.

[0053] Preferably, in this solution, a plurality of arc protrusions 46 in the vertical direction may be provided on the side of the guide portion 44 and the connecting portion 42 close to the sliding seat 30, such as Figure 3 As shown, the arc-shaped protrusion block 46 can realize the line contact between the guide part 44, the connecting part 42 and the sliding seat 30. Compared with the sliding contact between surfaces in the traditional technology, the arc-shaped protrusion block 46 can effectively reduce the friction between the sliding seat 30 and the connecting part 42 and the guide part 44, and at the same time can provide the sliding seat 30 with a guiding effect when sliding along the axial direction of the headrest support rod 2, thereby greatly improving the smoothness and stability of the headrest 1 during the height adjustment process.

[0054] The sliding seat assembly 3 also includes: an unlocking block 31, which is movably arranged in the sliding seat 30, and an unlocking button 13 is arranged on the headrest 1, one end of the unlocking block 31 extends out of the side wall of the sliding seat 30, and the unlocking button 13 is movably pressed against the unlocking block 31 to push the unlocking block 31 to move horizontally relative to the sliding seat 30; a locking steel wire 32, which is movably sleeved on the headrest support rod 2 and arranged in the sliding seat 30, and a waist-shaped hole 310 is provided on the unlocking block 31, one end of the locking steel wire 32 is connected to the sliding seat 30, and the other end is movably clamped in the locking groove 20 and extends into the waist-shaped hole 310; an elastic member 33, which is arranged parallel to the moving direction of the unlocking block 31, one end of the elastic member 33 is pressed against the unlocking block 31, and the other end is connected to the sliding seat 30.

[0055] For details on unlocking and locking the sliding seat 30, refer to Figures 3 to 5 The moving direction of the unlocking block 31 and the moving direction of the sliding seat 30 are exactly perpendicular to each other. It is worth noting that when the headrest 1 is in the locked state, the locking wire 32 is in a position where it is clamped in the locking groove 20 (that is, the sliding seat 30 is in the locked state at this time). Therefore, when the headrest 1 needs to be adjusted in height, the user needs to press the unlocking button 13 on the headrest 1. During the process of squeezing the unlocking button 13 into the inside of the headrest 1, the unlocking block 31 can be pushed relative to the sliding seat 30 along the Figure 4 Slide left (that is, Figure 5 The unlocking block 31 moves to the right), due to Figure 5 The right side of the locking wire 32 is clamped in the locking groove 20 and connected to the waist-shaped hole of the unlocking block 31, so as the unlocking block 31 moves, it is bound to exert Figure 5 The elastic deformation stretching force of the right end of the locking wire 32 to the right causes the right end of the locking wire 32 to be separated from the locking groove 20. Because the locking wire 32 itself is arranged in the sliding seat 30, the sliding seat 30 can drive the locking wire 32 to move synchronously when the headrest support rod 2 is freely adjusted in the axial direction (that is, the sliding seat 30 is in a sliding state at this time). When the headrest 1 is at the height required by the customer, the user releases the squeeze on the unlocking button 13, and the elastic deformation recovery force of the elastic member 33 between the unlocking block 31 and the sliding seat 30 causes the waist-shaped hole 310 on the unlocking block 31 to push again. Figure 5 The right end of the middle locking wire 32 is clamped in the locking groove 20 of the corresponding height, ensuring the stability of the headrest 1 when it is at the adjusted height. As the unlocking block 31 returns to its initial position before displacement, it effectively ensures the normal use of the headrest 1 when it is unlocked again for height adjustment.

[0056] Preferably, the elastic member 33 in this solution can be a compression spring, a return spring or other elastic devices. In addition, the fixing steel wire 43 and the locking steel wire 32 in this solution are preferably arranged in an Ω shape.

[0057] An extension block 311 extending into the sliding seat 30 is formed on the unlocking block 31, a first connecting column 312 is provided on the extension block 311, a second connecting column 300 is provided in the sliding seat 30, one end of the elastic member 33 is sleeved and connected to the first connecting column 312, and the other end is sleeved and connected to the second connecting column 300.

[0058] Further, if Figure 3 and Figure 5 As shown, in the present embodiment, the first connecting post 312 on the extension block 311 and the second connecting post 300 on the sliding seat 30 are at the same horizontal height and on the same straight line, which is not only conducive to the positioning and installation of the elastic member 33, but also can utilize the coaxial arrangement of the first connecting post 312 and the second connecting post 300, so that the elastic deformation direction of the elastic member 33 is always arranged in the same line with the first connecting post 312 and the second connecting post 300, thereby ensuring that under the elastic restoring force of the elastic member 33, after the headrest 1 is adjusted to the required height, it can push the unlocking block 31 to be stably reset, thereby improving the stability of the overall structure of the headrest 1, and also providing a guarantee for the smoothness of the headrest 1 structure during operation.

[0059] A guide groove 301 is formed in the sliding seat 30, and an anti-slip block 302 is set at the open end of the guide groove 301. Guide blocks 313 are formed on both sides of the unlocking block 31. The unlocking block 31 can be slid in the guide groove 301 along the horizontal direction due to the guide block 313, and the guide block 313 is restricted in the guide groove 301 by the anti-slip block 302 to prevent the unlocking block 31 from escaping from the sliding seat 30.

[0060] Further, if Figure 4 The lock 312 is a block which is used to lock the locking cam 314 in the locking cam 316. The lock 312 is a block which is used to lock the locking cam 314 in the locking cam 316. The lock 312 is a block which is used to lock the locking cam 314 in the locking cam 316.

[0061] The present scheme also includes: an adjusting sleeve 5, a guide hole 303 is provided in the sliding seat 30, a limiting protrusion 304 is formed on the inner wall of the guide hole 303, a plurality of arc blocks 50 distributed in an annular shape are formed on the adjusting sleeve 5, the arc block 50 protrudes toward the inside of the adjusting sleeve 5, and the adjusting sleeve 5 can be synchronously movably sleeved on the headrest support rod 2 with the sliding seat 30 when the adjusting sleeve 5 is placed in the guide hole 303 and pressed against the limiting protrusion 304, so that the arc block 50 can be movably pressed against the headrest support rod 2; a fixing cover 6, a receiving groove 305 is also provided on the sliding seat 30, the receiving groove 305 is located above the guide hole 303 and is interconnected with the guide hole 303, and connecting buckles 60 are provided at both ends of the fixing cover 6, and the connecting buckles 60 can lock the fixing cover 6 in the sliding seat 30 when the fixing cover 6 is movably sleeved on the headrest support rod 2 and placed in the receiving groove 305.

[0062] like Figure 6 As shown, the adjustment sleeve 5, the fixed cover 6 and the accommodating groove 305 in the present solution are symmetrically arranged in two groups, upper and lower, in the sliding seat 30. Specifically, during the installation process, since the limiting protrusion 304 is arranged in the guide hole 303 of the sliding seat 30, the adjustment sleeve 5 can be pre-placed in the guide hole 303, and the positioning installation of the adjustment sleeve 5 in the guide hole 303 is realized by the limiting protrusion 304, and the fixing cover 6 is installed above the adjustment sleeve 5, as shown in FIG. Figure 6 As shown, when the fixed cover 6 is pressed against the adjustment sleeve 5, the adjustment sleeve 5 can be effectively prevented from being separated from the wire hole, and the connection buckles 60 at both ends of the fixed cover 6 can be used to engage with the accommodating grooves 305, so that the fixed cover 6 and the adjustment sleeve 5 can remain relatively stationary in the sliding seat 30, and then can be movably sleeved on the headrest support rod 2 together with the sliding seat 30, and can be reciprocated along the axis direction of the headrest support rod 2 synchronously with the sliding seat 30. After the installation is completed, the arc block 50 recessed along the inner side of the adjustment sleeve 5 can be pressed against the headrest support rod 2. It should be noted that The adjustment sleeve 5 and the fixed cover 6 in this solution are both made of elastic materials. While guiding the sliding seat 30 when it moves along the axis of the headrest support rod 2, the interference between the sliding seat 30 and the headrest support rod 2 can be adjusted by using arc blocks 50 of different specifications (i.e., the concave arcs of arc blocks 50 of different specifications are also different). That is, the user can adjust the operating force when adjusting the height of the headrest 1 by relying on the tightness between the arc block 50 and the headrest support rod 2, so as to meet the usage needs of different customers and improve the adaptability of the headrest 1 structure. In addition, in this solution, the inner wall of the fixed cover 6 in contact with the headrest support rod 2 can also be provided with an arc convex block 46, and the limiting convex block 304 and the arc convex block 46 have the same structure, installation direction and effect, which will not be repeated here.

[0063] Preferably, for the installation between the sliding seat 30 and the headrest frame 10, the present solution is provided with a plurality of installation grooves 306 on the sliding seat 30, and the headrest frame 10 is provided with a positioning column 101 and a locking buckle 102, such as Figures 1 to 4 As shown, the positioning column 101 can limit the installation position of the sliding seat 30 on the headrest frame 10 when it is inserted into the installation groove 306, thereby achieving the pre-positioning effect of the sliding seat 30 before installation; as the locking buckle 102 is movably connected to the installation groove 306, the installation position between the sliding seat 30 and the headrest frame 10 is further limited, effectively ensuring that the sliding seat 30 will not produce relative displacement with the headrest frame 10 when it slides back and forth along the axial direction of the headrest support rod 2, thereby providing a guarantee for the smoothness and stability of the two-way headrest 1 during height adjustment.

[0064] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0065] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A two-way headrest structure assembly with freely adjustable wiring harness, It is characterized in that include: A headrest frame arranged in the headrest, and electronic devices may be connected to the headrest frame; A headrest support rod, one end of which is inserted into the seat back, and the other end of which extends into the headrest, wherein the headrest support rod is provided with a plurality of locking grooves at intervals along the axial direction thereof; A sliding seat assembly is arranged on the headrest support rod and connected to the headrest frame, and the sliding seat assembly has a sliding seat in a sliding state and a locked state; in the locked state, the sliding seat is movably engaged in the locking groove to limit the movement of the headrest relative to the headrest support rod; in the sliding state, the sliding seat can move along the axis direction of the headrest support rod to drive the headrest to be adjusted to a desired height; A transverse block connected to the top end of the headrest support rod, the sliding seat movably passes through the transverse block, a receiving portion is formed on the transverse block, one end of the receiving portion is connected to the headrest support rod, and the other end is open toward the headrest frame, and the wiring harness on the electronic device can be located between the sliding seat and the headrest frame, and extend into the headrest support rod along the receiving portion; When the sliding seat drives the headrest to move along the axial direction of the headrest support rod, the wire harness located in the accommodating portion remains stationary relative to the headrest support rod.

2. A two-way headrest structure assembly with freely adjustable wiring harness according to claim 1, It is characterized in that The transverse block is also provided with a tongue depressor extending to the top of the accommodating portion, and a limiting block is formed at the bottom of the tongue depressor. The tongue depressor is movably pressed against the top wall of the wiring harness so that the limiting block movably pressed against one side of the wiring harness can fix the wiring harness in the accommodating portion.

3. A two-way headrest structure assembly with freely adjustable wiring harness according to claim 1, It is characterized in that The headrest frame is detachably connected with a wiring harness connector, and the wiring harness connector is connected with two sections of the wiring harness, one section of which is connected to the electronic device, and the other section spans the sliding seat and partially extends into the accommodating portion.

4. A two-way headrest structure assembly with a harness that can be freely adjusted according to claim 1, It is characterized in that The lateral block comprises: A connecting portion, on which a fixing wire is arranged, and a connecting groove is formed on the headrest support rod, and when the connecting portion is movably sleeved on the headrest support rod, the fixing wire can be snapped into the connecting groove to lock the connecting portion on the headrest support rod; The symmetrically arranged guide portion is arranged on the outer wall of the connecting portion. The guide portion is arranged in an L-shape and forms a semi-guide cavity with the connecting portion. The opening on one side of the semi-guide cavity is used to accommodate the sliding seat. The opening in the vertical direction of the semi-guide cavity can allow the sliding seat to reciprocate along the axial direction of the headrest support rod.

5. A two-way headrest structure assembly with freely adjustable wiring harness according to claim 1, It is characterized in that The sliding seat assembly also includes: An unlocking block is movably arranged in the sliding seat, an unlocking button is arranged on the headrest, one end of the unlocking block extends out of the side wall of the sliding seat, and the unlocking button is movably pressed against the unlocking block to push the unlocking block to move in a horizontal direction relative to the sliding seat; A locking steel wire, which is movably sleeved on the headrest support rod and arranged in the sliding seat, the unlocking block is provided with a waist-shaped hole, one end of the locking steel wire is connected to the sliding seat, and the other end is movably clamped in the locking groove and extends into the waist-shaped hole; An elastic member is arranged parallel to the moving direction of the unlocking block, one end of the elastic member is pressed against the unlocking block, and the other end is connected to the sliding seat.

6. A two-way headrest structure assembly with a harness that can be freely adjusted according to claim 5, It is characterized in that The unlocking block is formed with an extension block extending into the sliding seat, the extension block is provided with a first connecting column, the sliding seat is provided with a second connecting column, one end of the elastic member is sleeved and connected to the first connecting column, and the other end is sleeved and connected to the second connecting column.

7. A two-way headrest structure assembly with a harness that can be freely adjusted according to claim 5, It is characterized in that A guide groove is formed in the sliding seat, an anti-slip block is provided at the open end of the guide groove, and guide blocks are formed on both sides of the unlocking block. The unlocking block can be slid in the guide groove along the horizontal direction due to the guide block, and the guide block is restricted in the guide groove by the anti-slip block to prevent the unlocking block from detaching from the sliding seat.

8. A two-way headrest structure assembly with a harness that can be freely adjusted according to claim 1, It is characterized in that Also includes: An adjustment sleeve, wherein a guide hole is provided in the sliding seat, a limiting convex block is formed on the inner wall of the guide hole, and a plurality of arc-shaped blocks distributed in an annular shape are formed on the adjustment sleeve, wherein the arc-shaped blocks protrude toward the inside of the adjustment sleeve, and when the adjustment sleeve is placed in the guide hole and pressed against the limiting convex block, the adjustment sleeve can be synchronously and movably sleeved on the headrest support rod along with the sliding seat, so that the arc-shaped blocks can be movably pressed against the headrest support rod; A fixed cover, a receiving groove is also provided on the sliding seat, the receiving groove is located above the guide hole and is interconnected with the guide hole, and connecting buckles are provided at both ends of the fixed cover, and the connecting buckles can lock the fixed cover in the sliding seat when the fixed cover is movably sleeved on the headrest support rod and placed in the receiving groove.

9. A two-way headrest structure assembly with a harness that can be freely adjusted according to claim 1, It is characterized in that A plurality of symmetrically arranged fixing buckles are formed on the headrest frame, and the fixing buckles can partially restrict the wiring harness between the electronic device and the sliding seat on the headrest frame.

10. A two-way headrest structure assembly with a harness that can be freely adjusted according to claim 1, It is characterized in that The sliding seat is provided with a plurality of mounting grooves, and the headrest frame is provided with a positioning column and a locking buckle. The positioning column can limit the installation position of the sliding seat on the headrest frame when the positioning column is inserted into the mounting groove; the locking buckle can prevent the sliding seat from moving relative to the headrest frame when the locking buckle is movably connected to the mounting groove.

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