Six-needle pluggable headrest mechanism

Abstract

The utility model discloses a six-needle pluggable headrest mechanism. Comprising a headrest main body, a headrest rod, a metal sleeve fixed on a seat framework, a guide sleeve body arranged in the metal sleeve, an unlocking button arranged at the upper end of the guide sleeve body, a wire harness terminal interface arranged in the headrest main body, and a pluggable connector interface connected with the wire harness terminal interface, the pluggable connector is connected with the pluggable connector interface, the male end body is arranged at the tail end of the headrest rod, the female end shell is arranged in the metal sleeve and located at the lower end of the guide sleeve body, the first wire harness is connected with the wire harness terminal interface, and the second wire harness is connected with the female end shell. The lower end of the headrest rod is arranged in the guide sleeve body; the male end body is connected with the female end shell in a plugging manner; the first wire harness penetrates through a wire harness through hole of the headrest rod, extends into the headrest rod and is connected with a male end body at the tail end of the headrest rod; the second wire harness is connected with the wire harness joint connector, the headrest mechanism can be pulled out, and the wire harnesses are not damaged when the headrest mechanism is pulled out; and during insertion, the connection is recovered.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile seat, and relates to a headrest, in particular to a six-needle pluggable headrest mechanism. BACKGROUND

[0002] The existing automobile seat headrest is divided into an integrated headrest and a split headrest, the integrated headrest is a non-pluggable headrest, and the split headrest is a pluggable headrest. At present, for some headrest structures capable of realizing specific functions, the integrated headrest structure is usually adopted because it needs to be connected with a wire harness, that is, the headrest cannot be pulled out, and the wire harness connection relies on a clamping structure; in addition, the existing headrest structure can at most realize four needles due to unreasonable internal structure design, and cannot satisfy the realization of the functions of a multifunctional headrest. SUMMARY

[0003] In view of the above technical problems and shortcomings, the purpose of the utility model is to provide a six-needle pluggable headrest mechanism, which can be pulled out, does not damage the wire harness, and can realize the functions of a positive electrode, a negative electrode, an NTC and music through six-needle connection; when pulled out, the wire harness is not damaged; when inserted, the connection is restored.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A six-needle pluggable headrest mechanism, comprising a headrest main body, a headrest rod arranged in the headrest main body, a metal sleeve fixed on a seat framework, a guide sleeve body arranged in the metal sleeve, an unlocking button arranged on the upper end of the guide sleeve body and inserted on the side, a wire harness terminal interface arranged in the headrest main body, a pluggable connector interface connected with the wire harness terminal interface arranged in the headrest main body, a pluggable connector connected with the pluggable connector interface arranged at the lower end of the headrest main body, a male terminal body arranged at the end of the headrest rod, a female terminal shell arranged in the metal sleeve and located at the lower end of the guide sleeve body, a first wire harness connected with the wire harness terminal interface, and a second wire harness connected with the female terminal shell.

[0006] The upper end of the headrest rod is provided with a wire harness through hole, the lower end of the headrest rod is arranged in the guide sleeve body, and the lower end of the headrest rod is locked and fixed or unlocked and pulled out through the unlocking button;

[0007] An even number of male terminal springs are arranged in the male terminal body, an even number of female terminal springs are arranged in the female terminal shell, and the male terminal body and the female terminal shell are connected in a plug-in manner;

[0008] The first wire harness extends into the inside of the headrest rod through the wire harness through hole and is connected with the male terminal body at the end of the headrest rod;

[0009] The second wire harness is connected with the wire harness connector.

[0010] As the preferred of the utility model, the headrest body includes headrest shell, right side guide sleeve, left side guide sleeve, right locking steel wire, left locking steel wire, unlocking mechanism, wherein, the headrest shell is equipped with right side guide sleeve, left side guide sleeve respectively in the position close to both sides, right side guide sleeve, left side guide sleeve are equipped with right locking steel wire, left locking steel wire for fixing headrest rod respectively, the unlocking mechanism is used for driving right locking steel wire, left locking steel wire and realizes unlocking, makes headrest shell can move up and down relative to headrest rod, the lower end of headrest shell is equipped with lower end foam, the pluggable connector is arranged at the bottom of lower end foam, the wire harness terminal interface is fixed on headrest shell through screw.

[0011] As the preferred of the utility model, the upper end of headrest rod is equipped with wire harness protection piece in the position of wire harness via hole, the wire harness protection piece is used for protecting first wire harness, avoids the breakage of first wire harness and headrest rod contact part, the lower end of headrest rod is the necking structure.

[0012] As the preferred of the utility model, the outer side wall of guide sleeve body, female end shell is equipped with clamping structure, the side wall of metal sleeve is equipped with clamping groove, and guide sleeve body, female end shell are installed and fixed in metal sleeve through the mode of clamping.

[0013] As the preferred of the utility model, the first wire harness, second wire harness are six needle wire harnesses, the number of male end spring piece, female end spring piece is six, six male end spring pieces are embedded in the inside of male end body, six female end spring pieces are embedded and injection molded in the inside of female end shell, first six needle wire harness is connected with six male end spring pieces after passing through the necking of headrest rod lower end, six female end spring pieces are connected with second six needle wire harness and wire speed connector connector, when male end spring piece is connected with female end spring piece, then six needle headrest function is realized.

[0014] As the preferred of the utility model, the upper end of guide sleeve body is further equipped with guide sleeve cover, the unlocking button is inserted into guide sleeve body from the side of guide sleeve body, and the end of unlocking button inserted into guide sleeve body is equipped with guide sleeve unlocking steel wire, so that the unlocking button can move along the transverse direction relative to guide sleeve body.

[0015] As a further preferred embodiment of the present application, the right side guide sleeve comprises an upper end right side guide sleeve arranged near the upper end of the headrest shell and a lower end right side guide sleeve arranged near the lower end of the headrest shell, and the left side guide sleeve comprises an upper end left side guide sleeve arranged near the upper end of the headrest shell and a lower end left side guide sleeve arranged near the lower end of the headrest shell, and the upper end right side guide sleeve, the lower end right side guide sleeve, the upper end left side guide sleeve and the lower end left side guide sleeve are respectively provided with an upper end right side guide sleeve metal sheet, a lower end right side guide sleeve metal sheet, an upper end left side guide sleeve metal sheet and a lower end left side guide sleeve metal sheet at the position of the headrest rod insertion hole, the headrest rod is clamped by the metal sheets to ensure the stability of the headrest rod installation and avoid shaking, and the right locking steel wire is arranged on the lower end right side guide sleeve, the left locking steel wire is arranged on the lower end left side guide sleeve, and the right locking steel wire and the left locking steel wire are respectively arranged in the right side locking groove and the left side locking groove of the headrest rod.

[0016] As a further preferred embodiment of the present application, the unlocking mechanism comprises a button body, a cross rod and a compression spring, wherein the button body is arranged on one side of the headrest shell and used for driving the cross rod to move in the transverse direction, the cross rod is arranged in the headrest shell and in contact with the button body, can move in the transverse direction relative to the headrest shell, and is provided with the compression spring between the cross rod and the headrest shell, the compression spring is used for pushing the cross rod to reset, and the end portions of the right locking steel wire and the left locking steel wire are arranged in the assembly hole of the cross rod, the right locking steel wire and the left locking steel wire are driven by the cross rod to move away from the right side locking groove and the left side locking groove of the headrest rod, and unlocking is realized.

[0017] As a further preferred embodiment of the present application, the unlocking button is a hidden button, that is, under normal circumstances, the outer end of the unlocking button is on the same annular surface as the guide sleeve cover.

[0018] As a further preferred embodiment of the present application, the button body comprises a button cover, a button, a button spring and a button cap, wherein the button cover is clamped with the headrest shell, the button is arranged in the button cover and can move in the transverse direction relative to the button cover, the button spring is arranged between the button and the button cover and used for pushing the button to reset, and the button cap is arranged at the outer end of the button.

[0019] The present application has the following advantages and beneficial effects:

[0020] (1) The headrest mechanism provided by the present application can be pulled out and the wire harness is not damaged, when the headrest rod is inserted, the male spring sheet at the end of the headrest rod is connected with the female spring sheet in the metal sleeve, the connection is restored, and the six-pin headrest function is realized; when the headrest rod is pulled out, only the male spring sheet and the female spring sheet are disconnected, and the wire harness is not damaged.

[0021] (2) The headrest mechanism provided by the utility model can realize positive and negative poles, NTC, and music headrest functions through six-pin connection, and meets the demand of multifunctional headrest function.

[0022] (3) The headrest mechanism provided by the utility model has simple overall structure, compact installation, durability and safety, simple plug-in and pull-out, can quickly realize plug-in and pull-out of the six-pin headrest and does not damage the wire harness connection after plug-in and pull-out; after insertion, the connection is stable, and complicated operations such as wire jointing are not needed. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0024] Figure 1 It is the overall structure schematic diagram of the six-pin pluggable headrest mechanism of the utility model;

[0025] Figure 2 It is the exploded schematic diagram of the six-pin pluggable headrest mechanism of the utility model;

[0026] Figure 3 It is the section view of the first wire harness and the second wire harness connection part of the utility model;

[0027] Figure 4 It is the schematic diagram of the headrest shell of the utility model;

[0028] Figure 5 It is the exploded schematic diagram of the right guide sleeve;

[0029] Figure 6 It is the exploded schematic diagram of the button body;

[0030] Figure 7 It is the schematic diagram of the headrest rod;

[0031] Figure 8 It is the exploded schematic diagram of the wire harness terminal interface, pluggable connector and other components;

[0032] Figure 9 It is the exploded schematic diagram of the guide sleeve body, unlocking button and other components;

[0033] Figure 10 It is the exploded schematic diagram of the male body, female shell.

[0034] Figures: headrest housing 1, compression spring 2, crossbar 3, headrest bar 4, upper end right side guide bushing 5, upper end right side guide bushing metal sheet 6, right locking wire 7, upper end left side guide bushing 8, upper end left side guide bushing metal sheet 9, left locking wire 10, lower end right side guide bushing 11, lower end right side guide bushing metal sheet 12, lower end left side guide bushing 13, lower end left side guide bushing metal sheet 14, button cover 15, button spring 16, button 17, button cap 18, lower end foam 19, wire harness protector 20, screw 21, wire harness terminal interface 22, plug-in connector interface 23, plug-in connector 24, guide bushing cover 25, guide bushing body 26, unlock button 27, guide bushing unlock wire 28, metal sleeve 29, male body 30, male spring 31, female spring 32, female housing 33, first wire harness 34, wire harness tie 35, second wire harness 36, wire harness connector 37. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] In the description of the present application, it should be noted that the terms "front", "back", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] As Figures 1 to 10As shown, the six-pin pluggable headrest mechanism provided by the embodiment includes a headrest body, a headrest rod 4 arranged in the headrest body, a metal sleeve 29 fixed on a seat framework, a guide sleeve body 26 arranged in the metal sleeve, an unlocking button 27 arranged on the upper end of the guide sleeve body and inserted on the side, a wire harness terminal interface 22 arranged in the headrest body, a pluggable connector interface 23 arranged in the headrest body and connected with the wire harness terminal interface, a pluggable connector 24 arranged at the lower end of the headrest body and connected with the pluggable connector interface, a male terminal body 30 arranged at the end of the headrest rod, a female terminal shell 33 arranged in the metal sleeve and located at the lower end of the guide sleeve body, a first wire harness 34 connected with the wire harness terminal interface, and a second wire harness 36 connected with the female terminal shell.

[0039] The upper end of the headrest rod 4 is provided with a wire harness through hole, the lower end of the headrest rod 4 is arranged in the guide sleeve body 26, and the lower end of the headrest rod 4 is locked and fixed or unlocked by the unlocking button 27.

[0040] The male terminal body 30 is provided with an even number of male terminal springs 31, the female terminal shell 33 is provided with an even number of female terminal springs 32, and the male terminal body 30 and the female terminal shell 33 are connected in a plug-in manner.

[0041] The first wire harness 34 extends into the inside of the headrest rod 4 through the wire harness through hole and is connected with the male terminal body 30 at the end of the headrest rod.

[0042] The second wire harness 36 is connected with a wire harness connector 37.

[0043] In the embodiment, the outer side walls of the guide sleeve body 26 and the female terminal shell 33 are each provided with a clamping structure, the side wall of the metal sleeve 29 is provided with a clamping groove, and the guide sleeve body 26 and the female terminal shell 33 are each installed and fixed in the metal sleeve 29 in a clamping manner.

[0044] In the embodiment, the headrest body includes a headrest shell 1, a right guide sleeve, a left guide sleeve, a right locking steel wire 7, a left locking steel wire 10, and an unlocking mechanism. The right guide sleeve and the left guide sleeve are respectively arranged at positions close to the two sides in the headrest shell 1, and the right locking steel wire 7 and the left locking steel wire 10 for fixing the headrest rod are respectively arranged on the right guide sleeve and the left guide sleeve. The unlocking mechanism is used to drive the right locking steel wire and the left locking steel wire to realize unlocking, so that the headrest shell 1 can move up and down relative to the headrest rod 4. The lower end of the headrest shell 1 is provided with a lower end foam body 19, the pluggable connector 24 is arranged at the bottom of the lower end foam body 19, and the wire harness terminal interface 22 is fixed on the headrest shell 1 by a screw 21.

[0045] It should be noted that in the embodiment, the structure of the headrest body can be designed according to the existing headrest structure, and the specific structure of the headrest body is not limited in the utility model, and any headrest body capable of realizing the unlocking mode can be used.

[0046] Further, the upper end of the headrest rod 4 is provided with a wire harness protection piece 20 at the position of the wire harness through hole, the wire harness protection piece 20 is used for protecting the first wire harness 34, and damage of the contact part of the first wire harness 34 with the headrest rod 4 is avoided; in addition, the lower end of the headrest rod 4 is a necked structure, which facilitates the fixation of the male body 30 and also facilitates the assembly.

[0047] In the embodiment, the first wire harness 34 and the second wire harness 36 are both six-pin wire harnesses, the number of the male spring sheets 31 and the female spring sheets 32 is six, six male spring sheets 31 are inlaid into the inside of the male body 30, and six female spring sheets 32 are inlaid and injection molded in the inside of the female shell 33; the first six-pin wire harness is connected with the six male spring sheets 31 after passing through the necked structure at the lower end of the headrest rod 4, the six female spring sheets 32 are connected with the second six-pin wire harness and connected with the wire speed connector 37, and when the male spring sheets 31 are connected with the female spring sheets 32, the six-pin headrest function is realized.

[0048] It should be noted that the number of the male spring sheets 31 and the female spring sheets 32 can also be adjusted to eight pins or more pins according to actual needs and product sizes, and the number of pins of the first wire harness 34 and the second wire harness 36 is matched with the number of the male spring sheets and the female spring sheets; of course, according to the requirements of the existing headrest size, six pins are preferred.

[0049] In the embodiment, the upper end of the guide sleeve body 26 is further provided with a guide sleeve cover 25, the unlocking button 27 is inserted into the guide sleeve body 26 from the side surface of the guide sleeve body 26, one end of the unlocking button 27 inserted into the guide sleeve body 26 is provided with a guide sleeve unlocking steel wire 28, so that the unlocking button 27 can move transversely relative to the guide sleeve body 26; under normal circumstances, the headrest rod 4 is inserted into the guide sleeve body 26 after passing through the headrest rod assembly hole of the unlocking button 27, at this time, under the action of the guide sleeve unlocking steel wire 28, the unlocking button 27 is arranged in the locking groove at the lower end of the headrest rod 4, at this time, the headrest rod 4 cannot be pulled out; when the unlocking button 27 is pressed, at this time, the guide sleeve unlocking steel wire 28 is compressed under the action of external force, the unlocking button 27 moves transversely and is separated from the locking groove at the end of the headrest rod 4, at this time, the headrest rod can be pulled out.

[0050] Further, the unlocking button 27 is a hidden button, that is, under normal circumstances, the outer end of the unlocking button 27 is on the same annular surface as the guide sleeve cover 25, and this kind of structure design can avoid the headrest rod from being pulled out by mistake.

[0051] It should be noted that in the embodiment, the specific mounting mode of the guide sleeve body 26, the guide sleeve cover 25 and the unlocking button 27 can refer to the existing guide sleeve structure, and the specific structure of the guide sleeve body and the unlocking button is not limited in the utility model, and any guide sleeve structure capable of realizing the above unlocking mode can be used.

[0052] Further, in the embodiment, the right guide sleeve includes an upper end right guide sleeve 5 arranged near the upper end of the headrest shell 1 and a lower end right guide sleeve 11 arranged near the lower end of the headrest shell, the left guide sleeve includes an upper end left guide sleeve 8 arranged near the upper end of the headrest shell and a lower end left guide sleeve 13 arranged near the lower end of the headrest shell, the upper end right guide sleeve, the lower end right guide sleeve, the upper end left guide sleeve and the lower end left guide sleeve are respectively provided with an upper end right guide sleeve metal sheet 6, a lower end right guide sleeve metal sheet 12, an upper end left guide sleeve metal sheet 9 and a lower end left guide sleeve metal sheet 14 at the position of the headrest rod insertion hole, the metal sheets are used to clamp the headrest rod, thereby ensuring the stability of the headrest rod installation and avoiding shaking, the lower end right guide sleeve 11 is provided with a right locking steel wire 7, the lower end left guide sleeve 13 is provided with a left locking steel wire 10, and the right locking steel wire and the left locking steel wire are respectively arranged in the right locking groove and the left locking groove of the headrest rod.

[0053] Further, in the embodiment, the unlocking mechanism includes a button body, a cross rod 3 and a compression spring 2, the button body is arranged on one side of the headrest shell 1 and is used to drive the cross rod 3 to move horizontally, the cross rod 3 is arranged in the headrest shell 1 and the end portion thereof is in contact with the button body, the cross rod 3 can move horizontally relative to the headrest shell 1, and the compression spring 2 is arranged between the cross rod 3 and the headrest shell 1, the compression spring 2 is used to push the cross rod 3 to reset, the end portions of the right locking steel wire 7 and the left locking steel wire 10 are arranged in the assembly hole of the cross rod 3, the right locking steel wire 7 and the left locking steel wire 10 are driven by the cross rod 3 to move away from the right locking groove and the left locking groove of the headrest rod, thereby realizing unlocking.

[0054] Further, in the embodiment, the button body includes a button cover 15, a button spring 16, a button 17 and a button cap 18, the button cover 15 is clamped with the headrest shell 1, the button 17 is arranged in the button cover 15 and can move horizontally relative to the button cover 15, the button spring 16 is arranged between the button 17 and the button cover 15 and is used to push the button 17 to reset, and the button cap 18 is arranged at the outer end of the button 17.

[0055] It should be noted that in the embodiment, the specific mounting mode of the button body can refer to the existing button structure, which is not the key point of the application, and thus will not be described in detail.

[0056] The above is the specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A six-pin, pluggable headrest mechanism, characterized by, The headrest comprises a headrest body, a headrest rod arranged in the headrest body, a metal sleeve fixed on a seat framework, a guide sleeve body arranged in the metal sleeve, an unlocking button arranged on the upper end of the guide sleeve body and inserted laterally, a wire harness terminal interface arranged in the headrest body, a pluggable connector interface connected with the wire harness terminal interface arranged in the headrest body, a pluggable connector connected with the pluggable connector interface arranged at the lower end of the headrest body, a male terminal body arranged at the end of the headrest rod, a female terminal shell arranged in the metal sleeve and located at the lower end of the guide sleeve body, a first wire harness connected with the wire harness terminal interface, and a second wire harness connected with the female terminal shell. The upper end of the headrest rod is provided with a wire harness through hole, and the lower end of the headrest rod is arranged in the guide sleeve body and is locked or unlocked by the unlocking button. The male terminal body is provided with an even number of male terminal springs, the female terminal shell is provided with an even number of female terminal springs, and the male terminal body and the female terminal shell are connected by insertion. The first wire harness extends into the headrest rod through the wire harness through hole and is connected with the male terminal body at the end of the headrest rod. The second wire harness is connected with the wire harness connector.

2. A six-pin, pluggable headrest mechanism according to claim 1, wherein, The headrest body comprises a headrest shell, a right guide sleeve, a left guide sleeve, a right locking wire, a left locking wire, and an unlocking mechanism. The right guide sleeve and the left guide sleeve are arranged at the positions close to the two sides in the headrest shell. The right locking wire and the left locking wire are arranged on the right guide sleeve and the left guide sleeve respectively for fixing the headrest rod. The unlocking mechanism is used to drive the right locking wire and the left locking wire to realize unlocking, so that the headrest shell can move up and down relative to the headrest rod. The lower end of the headrest shell is provided with a lower end foam body. The pluggable connector is arranged at the bottom of the lower end foam body. The wire harness terminal interface is fixed on the headrest shell by screws.

3. A six-pin, pluggable headrest mechanism according to claim 1, wherein, The upper end of the headrest rod is provided with a wire harness protection piece at the position of the wire harness through hole. The wire harness protection piece is used to protect the first wire harness. The lower end of the headrest rod is a necked structure.

4. A six-pin, pluggable headrest mechanism according to claim 1, wherein, The outer walls of the guide sleeve body and the female terminal shell are both provided with clamping structures. The sidewall of the metal sleeve is provided with a clamping groove. The guide sleeve body and the female terminal shell are both installed and fixed in the metal sleeve by clamping.

5. A six-pin, pluggable headrest mechanism according to claim 1, wherein, The first wire harness and the second wire harness are both six-pin wire harnesses. The number of the male terminal springs and the female terminal springs is six. Six male terminal springs are embedded in the male terminal body, and six female terminal springs are embedded and injection molded in the female terminal shell. The first six-pin wire harness is connected with the six male terminal springs after passing through the necked lower end of the headrest rod. The six female terminal springs are connected with the second six-pin wire harness and the wire harness connector. When the male terminal spring is connected with the female terminal spring, the six-pin headrest function is realized.

6. A six-pin, pluggable headrest mechanism according to claim 1, wherein, The upper end of the guide sleeve body is further provided with a guide sleeve cover. The unlocking button is inserted into the guide sleeve body from the side of the guide sleeve body. The end of the unlocking button inserted into the guide sleeve body is provided with a guide sleeve unlocking wire, so that the unlocking button can move horizontally relative to the guide sleeve body.

7. A six-pin, pluggable headrest mechanism according to claim 2, wherein, The right guide sleeve comprises an upper end right guide sleeve arranged near the upper end of the headrest shell and a lower end right guide sleeve arranged near the lower end of the headrest shell, and the left guide sleeve comprises an upper end left guide sleeve arranged near the upper end of the headrest shell and a lower end left guide sleeve arranged near the lower end of the headrest shell; the upper end right guide sleeve, the lower end right guide sleeve, the upper end left guide sleeve and the lower end left guide sleeve are respectively provided with an upper end right guide sleeve metal sheet, a lower end right guide sleeve metal sheet, an upper end left guide sleeve metal sheet and a lower end left guide sleeve metal sheet at the position of the headrest rod insertion hole, and the headrest rod is clamped by the metal sheets; the lower end right guide sleeve is provided with a right locking steel wire, and the lower end left guide sleeve is provided with a left locking steel wire; the right locking steel wire and the left locking steel wire are respectively arranged in the right locking groove and the left locking groove of the headrest rod.

8. A six-pin, pluggable headrest mechanism according to claim 2, wherein, The unlocking mechanism comprises a button body, a cross rod and a compression spring; the button body is arranged on one side of the headrest shell and is used to drive the cross rod to move horizontally; the cross rod is arranged in the headrest shell and the end thereof is in contact with the button body, and the cross rod can move horizontally relative to the headrest shell; the compression spring is arranged between the cross rod and the headrest shell; the compression spring is used to push the cross rod to reset; the end of the right locking steel wire and the left locking steel wire is arranged in the assembly hole of the cross rod, and the right locking steel wire and the left locking steel wire are driven by the cross rod to move away from the right locking groove and the left locking groove of the headrest rod, so as to realize unlocking.

9. A six-pin, pluggable headrest mechanism according to claim 6, wherein, The unlocking button is a hidden button, that is, the outer end of the unlocking button is on the same annular surface as the guide sleeve cover under normal circumstances.

10. A six-pin, pluggable headrest mechanism according to claim 8, wherein, The button body comprises a button cover, a button, a button spring and a button cap; the button cover is connected with the headrest shell, the button is arranged in the button cover and can move horizontally relative to the button cover, the button spring is arranged between the button and the button cover and is used to push the button to reset, and the button cap is arranged at the outer end of the button.

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