Headrest plugging structure

Abstract

The utility model discloses a headrest plug-pull structure which comprises a backrest and a headrest, a sleeve assembly is arranged on the upper portion of the backrest and provided with a plug-in channel extending in the height direction of the backrest, a second electric connector capable of moving up and down is arranged in the plug-in channel, and the headrest is provided with a headrest rod matched with the plug-in channel. A first electric connector is fixedly arranged at the lower end of the headrest rod and can be connected with the second electric connector in an inserted mode. A second magnetic attraction element is integrated on the second electric connector, a first magnetic attraction element is arranged at any position in the height direction of the insertion channel, and the second electric connector can be kept at the height position corresponding to the first magnetic attraction element under the magnetic attraction effect between the two magnetic attraction elements; and in the process that the headrest rod is upwards pulled out of the insertion channel, the first electric connector and the second electric connector can be separated and disconnected at the position of the first magnetic attraction element. The detachable headrest has the advantages that height adjustment of the headrest rod and conduction of the internal wire harness can be taken into consideration when the detachable requirement of the headrest is met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a headrest plug-in structure. Background Art

[0002] Headrests are crucial for car seat safety and comfort. To meet market demand for convertible seats, such as those with quick-flat backrests and one-touch bed-like configurations, headrests need to be removable.

[0003] Because the headrest integrates electrical components such as speakers, microphones, heaters, and massagers, and requires height adjustment, the need for a detachable headrest while also balancing the need for height adjustment of the headrest rod and internal wiring harness connectivity has become a pressing technical challenge. Utility Model Content

[0004] In view of this, the present invention provides a headrest plug-in structure to meet the above technical requirements.

[0005] To achieve the above purpose, the technical solution of this utility model is as follows:

[0006] A headrest plug-in structure includes a backrest and a headrest detachably connected to the upper portion of the backrest. The key features of the structure are: a sleeve assembly is provided on the upper portion of the backrest, the sleeve assembly has a plug-in channel extending along the height direction of the backrest, a second electrical connector that can move up and down is provided in the plug-in channel, the headrest has a headrest rod adapted to the plug-in channel, a first electrical connector is fixed to the lower end of the headrest rod, and the first electrical connector can be plugged and connected to the second electrical connector;

[0007] The second electrical connector is integrated with a second magnetic element, and a first magnetic element is provided at any position in the height direction of the plug-in channel. Under the magnetic attraction between the two magnetic elements, the second electrical connector can be maintained at a height position corresponding to the first magnetic element.

[0008] When the headrest rod is inserted downward into the plug-in channel, the magnetic resistance between the first magnetic element and the second magnetic element can ensure that the first electrical connector and the second electrical connector are plugged and connected;

[0009] When the headrest rod is pulled upward out of the plug-in channel, the first electrical connector and the second electrical connector can be separated and disconnected at the position of the first magnetic element.

[0010] With the above structure, the second electrical connector can be pre-positioned at the height corresponding to the first magnetic element under the magnetic attraction between the two magnetic elements. During the process of inserting the headrest rod downward into the plug-in channel, the magnetic resistance between the first magnetic element and the second magnetic element can enable the lower end of the first electrical connector to be plugged and connected with the upper end of the second electrical connector. When adjusting the height of the headrest, the headrest rod breaks through the magnetic attraction force and continues to move downward, which can cause the second magnetic element to move downward away from the first magnetic element, thereby driving the first electrical connector and the second electrical connector to move up and down synchronously in the space below the first magnetic element, to ensure that the first electrical connector and the second electrical connector always remain energized when the headrest is adjusted in height, thereby ensuring the stability of the electrical components in the headrest. When the headrest needs to be removed, the headrest rod is pulled up. During the process of pulling the headrest rod upward out of the plug-in channel, the second electrical connector can stably remain at the height corresponding to the first magnetic element. The first electrical connector and the second electrical connector are separated and disconnected, and the first electrical connector continues to be pulled out of the plug-in channel following the headrest rod.

[0011] Preferably, the sleeve assembly includes a guide cylinder and a guide sleeve located at the lower end of the guide cylinder, and the guide cylinder and the guide sleeve are connected in the vertical direction to form the plug-in channel.

[0012] Preferably, a sliding channel extending in the height direction is provided inside the guide sleeve, the first magnetic element is fixedly arranged at the top of the sliding channel, the second electrical connector has a support platform adapted to the sliding channel, and the second magnetic element is arranged on the support platform.

[0013] Preferably, a first insertion slot with one side open is provided at the top of the sliding channel, and the first magnetic element is fixed in the first insertion slot.

[0014] Preferably, there are two groups of the first insertion slots and two groups of the first magnetic elements, which correspond to each other. The two groups of the first insertion slots are arranged at both ends of the top of the sliding channel, and the two groups of the first magnetic elements are rectangular block structures.

[0015] Preferably, two groups of third insertion slots are provided on the support platform, and the two groups of third insertion slots correspond to the two groups of first insertion slots respectively. There are two groups of second magnetic elements, and the two groups of second magnetic elements are respectively fixed in the two groups of third insertion slots; the two groups of second magnetic elements are both rectangular block structures.

[0016] Preferably, a guide groove extending in the height direction is provided on the side wall of the sliding channel, and a guide block slidably engaged with the guide groove is provided on the side of the support platform.

[0017] Preferably, the first magnetic element and / or the second magnetic element is / are of U-shaped structure.

[0018] Preferably, a locking mechanism is provided between the upper end of the guide cylinder and the headrest rod, and the locking mechanism is used to lock the headrest rod at a specified height.

[0019] Preferably: the headrest rod is provided with a locking groove distributed along the height direction, the locking mechanism includes a mounting seat fixedly arranged at the upper end of the guide cylinder, the mounting seat is provided with a first connecting through hole for the headrest rod to pass through, a control component is movably nested in the mounting seat, the control component is provided with a second connecting through hole for avoiding the headrest rod to pass through, the side wall of the second connecting through hole is opposite to the position strip of the locking groove, an elastic component is provided between the control component and the mounting seat, and the elastic component applies a force to lock the strip on the locking groove.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. With the headrest plug-in structure provided by the present invention, the second electrical connector can be pre-positioned at the height corresponding to the first magnetic element under the magnetic attraction between the two magnetic elements. During the process of inserting the headrest rod downward into the plug-in channel, the magnetic resistance between the first magnetic element and the second magnetic element can enable the lower end of the first electrical connector to be plugged and connected with the upper end of the second electrical connector. At this time, the electrical components integrated in the headrest can be energized, completing the installation of the headrest rod. When adjusting the height of the headrest, the headrest rod breaks through the magnetic attraction and continues to move downward, which can cause the second magnetic element to move downward away from the first magnetic element, thereby driving the first and second electrical connectors to move up and down synchronously in the space below the first magnetic element, so as to ensure that the first and second electrical connectors always remain energized when the headrest is adjusted in height, thereby ensuring the stability of the electrical components in the headrest. When the headrest needs to be removed, pull up the headrest rod. During the process of pulling the headrest rod upward out of the plug-in channel, the second electrical connector can be stably maintained at the height position corresponding to the first magnetic element. The first electrical connector is separated from the second electrical connector and disconnected. The first electrical connector continues to be pulled out of the plug-in channel along with the headrest rod, completing the removal of the headrest.

[0022] 2. The first magnetic element and the second magnetic element adopt an upper and lower adsorption method, which has the advantage of a more stable structure. At the same time, when the headrest rod is pulled out, the first magnetic element combined with its installation structure can provide more sufficient resistance to enable the headrest rod to be pulled out quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the headrest plug-in structure;

[0024] Figure 2 It is a cross-sectional view of the headrest plug-in structure;

[0025] Figure 3 for Figure 2 A partial enlarged view of point D in the middle;

[0026] Figure 4 for Figure 2 A partial enlarged view of point E in the middle;

[0027] Figure 5 This is an exploded schematic diagram of the guide sleeve 2 and the second electrical connector 5;

[0028] Figure 6 A schematic diagram showing the connection relationship between the locking mechanism 9 and the headrest rod 3;

[0029] Figure 7 is a schematic structural diagram of the control component 92;

[0030] Figure 8 is a cross-sectional view of the guide sleeve 2 in another embodiment;

[0031] Figure 9 Schematic diagram of the exploded view of the guide sleeve 2 and the second electrical connector 5 in another embodiment. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0033] like Figure 1 and 2 As shown, a headrest plug-in structure includes a backrest A and a headrest B detachably connected to the upper part of the backrest A, wherein electrical components such as speakers or microphones are integrated into the headrest B. A sleeve assembly is provided on the upper part of the backrest A, and the sleeve assembly has a plug-in channel extending along the height direction of the backrest. A second electrical connector 5 that can move up and down is provided in the plug-in channel, and the lower end of the second electrical connector 5 can be electrically connected to the power supply in the vehicle through the backrest wiring harness. The headrest B has a headrest rod 3 that is adapted to the plug-in channel. A first electrical connector 4 is fixed to the lower end of the headrest rod 3. The upper end of the first electrical connector 4 is electrically connected to the electrical components in the headrest B through the headrest wiring harness, and the lower end can be plugged and connected to the upper end of the second electrical connector 5. After the first electrical connector 4 is connected to the second electrical connector 5, the electrical components in the headrest B can be energized.

[0034] The second electrical connector 5 is integrated with a second magnetic element 6, and a first magnetic element 7 is positioned at any height along the insertion channel. The magnetic attraction between the two magnetic elements maintains the second electrical connector 5 at the height corresponding to the first magnetic element 7. As the headrest rod 3 is inserted downward into the insertion channel, the magnetic resistance between the first magnetic element 7 and the second magnetic element 6 ensures that the first electrical connector 4 and the second electrical connector 5 are plugged in and connected. As the headrest rod 3 is pulled upward out of the insertion channel, the first electrical connector 4 and the second electrical connector 5 can be separated at the location of the first magnetic element 7.

[0035] Based on the above structural design, the insertion process of the headrest rod 3 is as follows: the second electrical connector 5 can be pre-positioned at the height position corresponding to the first magnetic element 7 under the magnetic attraction between the two magnetic elements. During the process of inserting the headrest rod 3 downward into the insertion channel, the magnetic resistance between the first magnetic element 7 and the second magnetic element 6 can make the lower end of the first electrical connector 4 and the upper end of the second electrical connector 5 plug and connect. At this time, the electrical components integrated in the headrest can be energized, completing the installation of the headrest rod 3. When adjusting the height of the headrest B, the headrest rod 3 breaks through the magnetic attraction and continues to move downward, which can make the second magnetic element 6 move downward away from the first magnetic element 7, thereby driving the first electrical connector 4 and the second electrical connector 5 to move up and down synchronously in the space below the first magnetic element 7, so as to ensure that the first electrical connector 4 and the second electrical connector 5 always remain energized when the headrest B is adjusted in height, thereby ensuring the stability of the electrical components in the headrest B. When the headrest B needs to be removed, pull up the headrest rod 3. During the process of pulling the headrest rod 3 upward out of the plug-in channel, the second electrical connector 5 can be stably maintained at the height position corresponding to the first magnetic element 7. The first electrical connector 4 is separated from the second electrical connector 5 and disconnected. The first electrical connector 4 continues to be pulled out from the plug-in channel following the headrest rod 3, completing the disassembly of the headrest B.

[0036] In this embodiment, the first magnetic element 7 and the second magnetic element 6 are two magnets that attract each other. In actual application, the first magnetic element 7 and the second magnetic element 6 can also be a combination of a metal part and a magnet. In this field, they are equivalent replacements and can also achieve the magnetic effect.

[0037] Further, refer to Figure 2 To facilitate installation, the sleeve assembly includes a guide cylinder 1 and a guide sleeve 2 located at the lower end of the guide cylinder 1. The guide cylinder 1 and the guide sleeve 2 are connected in the vertical direction to form a plug-in channel.

[0038] Specific, combined Figure 3 and 5 As shown, the guide sleeve 2 is internally provided with a sliding channel 2a extending in the height direction, the first magnetic element 7 is fixedly arranged at the top of the sliding channel 2a, the second electrical connector 5 has a support platform 5a adapted to the sliding channel 2a, and the second magnetic element 6 is arranged on the support platform 5a. By arranging the first magnetic element 7 and the second magnetic element 6 symmetrically up and down, the advantage of such a design is that the magnets adsorbed up and down have the advantage of a more stable structure, so that the second electrical connector 5 can be more stably maintained at the height position corresponding to the first magnetic element 7. At the same time, when the headrest rod 3 is pulled out, the first magnetic element 7 combined with its mounting structure can provide more sufficient resistance to enable the headrest rod 3 to be quickly pulled out, thereby improving the convenience of disassembly and assembly of the headrest B.

[0039] Further, if Figure 5As shown, for the convenience of installation, a first insertion groove 21 with one side open is provided at the top of the sliding channel 2a, and the first magnetic element 7 is fixed in the first insertion groove 21. The corresponding support platform 5a has a second insertion groove 5a1 with one side open, and the second magnetic element 6 is fixed in the second insertion groove 5a1.

[0040] In this embodiment, the sliding channel 2a is a square channel, and the first magnetic element 7 and the second magnetic element 6 are both U-shaped. This design makes the U-shaped magnet more convenient for plugging and installation. At the same time, the second electrical connector 5 can be located in the middle of the U-shaped magnet, making the overall structure more compact.

[0041] Combine Figure 3 and Figure 5 As shown, the first insertion slot 21 and the second insertion slot 5a1 are both provided with reinforcing ribs a protruding from the slot walls to ensure that the first magnetic element 7 and the second magnetic element 6 can be more firmly installed in the slot body.

[0042] like Figure 5 As shown, the sidewalls of the sliding channel 2a are provided with guide grooves 22 extending in the height direction. The side of the support platform 5a is provided with guide blocks 5b that slidably engage with the guide grooves 22. The guide grooves 22 serve as guides and also enhance the smoothness of the upward and downward sliding of the second electrical connector 5. In this embodiment, two sets of guide grooves 22 are provided, symmetrically arranged on either side of the guide sleeve 2. Both guide grooves 22 are open at their lower ends, allowing the guide blocks 5b to enter the guide grooves 22 through the open ends, thereby facilitating the removal and installation of the second electrical connector 5.

[0043] Combine Figure 3 and 5 As shown, the upper end of the second electrical connector 5 has a second plug-in portion 51 extending upward, and the lower end of the first electrical connector 4 has a first plug-in portion 41 detachably connected to the second plug-in portion 51. The first plug-in portion 41 is snapped onto the second plug-in portion 51, thereby completing the plug-in connection between the first electrical connector 4 and the second electrical connector 5.

[0044] In this embodiment, two sets of headrest rods 3 and their matching guide cylinders 1 are provided and correspond one to one. The first electrical connector 4 is provided at the lower end of one set of headrest rods 3 .

[0045] In addition to the above embodiments, the structure and installation method of the first magnetic element 7 and the second magnetic element 6 can also be as follows: Figure 8 and Figure 9As shown, there are two sets of first insertion slots 21 and first magnetic elements 7, and the two sets of first magnetic elements 7 are fixedly installed in the two sets of first insertion slots 21. The two sets of first insertion slots 21 are arranged at both ends of the top of the sliding channel 2a, and an escape channel is provided between the two sets of first insertion slots 21 to prevent the headrest rod 3 from sliding up and down. In this embodiment, both sets of first magnetic elements 7 are rectangular block structures.

[0046] Further, refer to Figure 8 and Figure 9 The support platform 5a is provided with two sets of third insertion slots 5a2, which correspond one-to-one with the two sets of first insertion slots 21 along the height direction of the sliding channel 2a. Two sets of second magnetic elements 6 are provided, each secured within the two sets of third insertion slots 5a2. Both sets of second magnetic elements 6 are rectangular blocks. This design ensures that the second electrical connector 5 remains stably positioned at the height corresponding to the first magnetic elements 7. Furthermore, the first magnetic elements 7, combined with their mounting structure, provide sufficient resistance to facilitate rapid removal of the headrest rod 3.

[0047] like Figure 1 and 6 As shown, a locking mechanism 9 is provided between the upper end of the guide cylinder 1 and the headrest rod 3 , and the locking mechanism 9 can lock the headrest rod 3 at a specified height.

[0048] For details, please refer to Figure 1 and 6 The headrest rod 3 is provided with a positioning groove 31 along the height direction. The locking mechanism 9 includes a mounting seat 91 fixed on the lower side of the transition support member 8. The mounting seat 91 is provided with a first connecting through hole b for the headrest rod 3 to pass through. A control component 92 is movably nested in the mounting seat 91. Figure 7 As can be seen, the control component 92 is provided with a second connecting hole c for avoiding the passage of the headrest rod 3. The side wall of this second connecting hole c directly faces the position clip 921 of the locking groove 31. An elastic component 93 is provided between the control component 92 and the mounting seat 91, which applies a force to lock the clip 921 in the locking groove 31.

[0049] Combine Figure 4 When adjusting the height of the headrest rod 3, press the control component 92, and the control component 92 can compress the elastic component 93 so that the clip 921 on the control component 92 is away from the locking groove 31 of the headrest rod 3, and the headrest rod 3 can move up and down along the guide cylinder 1. After adjusting the appropriate height, release the control component 92, and the elastic component 93 can release the elastic force to make the control component 92 move outward. At this time, the clip 921 on the control component 92 can be locked in the corresponding locking groove 31. At the same time, the force exerted by the elastic component 93 can keep the control component 92 in the current position, so as to achieve the purpose of locking the headrest rod 3.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. A headrest plug-in structure, comprising a backrest (A) and a headrest (B) detachably connected to the upper portion of the backrest (A), characterized in that: The backrest (A) is provided with a sleeve assembly on its upper portion, the sleeve assembly having a plug-in channel extending in the height direction of the backrest, a second electrical connector (5) movable up and down is provided in the plug-in channel, the headrest (B) has a headrest rod (3) adapted to the plug-in channel, a first electrical connector (4) is fixedly provided at the lower end of the headrest rod (3), and the first electrical connector (4) can be plugged and connected to the second electrical connector (5); A second magnetic element (6) is integrated on the second electrical connector (5), and a first magnetic element (7) is provided at any position in the height direction of the plug-in channel. Under the magnetic attraction between the two magnetic elements, the second electrical connector (5) can be maintained at a height position corresponding to the first magnetic element (7); During the process of inserting the headrest rod (3) downward into the plug-in channel, the magnetic attraction resistance between the first magnetic attraction element (7) and the second magnetic attraction element (6) can ensure that the first electrical connector (4) and the second electrical connector (5) are plugged in and connected; During the process of pulling the headrest rod (3) upward out of the plug-in channel, the first electrical connector (4) and the second electrical connector (5) can be separated and disconnected at the position of the first magnetic element (7); The sleeve assembly comprises a guide sleeve (2), a sliding channel (2a) extending in a height direction is provided inside the guide sleeve (2), the second electrical connector (5) has a support platform (5a) adapted to the sliding channel (2a), a first insertion slot (21) with one side open is provided at the top of the sliding channel (2a), the support platform (5a) has a second insertion slot (5a1) with one side open, the first magnetic element (7) is fixed in the first insertion slot (21), and the second magnetic element (6) is fixed in the second insertion slot (5a1); the first magnetic element (7) and the second magnetic element (6) are both U-shaped structures.

2. The headrest plug-in structure according to claim 1, characterized in that: The sleeve assembly further comprises a guide cylinder (1), the guide sleeve (2) is located at the lower end of the guide cylinder (1), and the guide cylinder (1) and the guide sleeve (2) are connected in the vertical direction to form the insertion channel.

3. The headrest plug-in structure according to claim 1, characterized in that: A guide groove (22) extending in the height direction is provided on the side wall of the sliding channel (2a), and a guide block (5b) slidingly engaged with the guide groove (22) is provided on the side of the support platform (5a).

4. The headrest plug-in structure according to claim 2, characterized in that: A locking mechanism (9) is provided between the upper end of the guide cylinder (1) and the headrest rod (3), and the locking mechanism (9) is used to lock the headrest rod (3) at a specified height.

5. The headrest plug-in structure according to claim 4, characterized in that: The headrest rod (3) is provided with a locking groove (31) distributed along the height direction. The locking mechanism (9) includes a mounting seat (91) fixed to the upper end of the guide cylinder (1). The mounting seat (91) is provided with a first connecting through hole (b) for allowing the headrest rod (3) to pass through. A control component (92) is movably nested in the mounting seat (91). The control component (92) is provided with a second connecting through hole (c) for preventing the headrest rod (3) from passing through. The side wall of the second connecting through hole (c) is directly opposite to the position clamping strip (921) of the locking groove (31). An elastic component (93) is provided between the control component (92) and the mounting seat (91). The elastic component (93) applies a force to lock the clamping strip (921) on the locking groove (31).

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