Pluggable air pipe connecting mechanism of vehicle seat

Abstract

The utility model relates to a pluggable air pipe connecting mechanism of a vehicle seat. The pluggable air pipe connecting mechanism comprises a male end connecting piece connected with a headrest guide rod. The first air pipe is inserted into the headrest guide rod and is connected with the male end connecting piece; the sleeve is connected with the backrest assembly; the female end connecting piece can be limited in the sleeve; the second air pipe is connected with the female end connecting piece; the male end connecting piece can be inserted into the sleeve along with the headrest guide rod and then is connected with the female end connecting piece in the sleeve in an inserted mode, and therefore the first air pipe is communicated with the second air pipe. Under the driving of the headrest guide rod, the female end connecting piece can be unlimited from the sleeve, then the female end connecting piece and the male end connecting piece enter and exit from the sleeve together, the female end connecting piece can be limited in the sleeve again, and the male end connecting piece can be further unconnected with the female end connecting piece in an inserted mode. The air pipe can be supported to move up and down along with the headrest guide rod, and the function of free pulling and inserting can be achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle seats, and specifically to a pluggable air hose connection mechanism for vehicle seats. Background Technology

[0002] Vehicle seat headrests often feature pneumatic adjustment functions, such as pneumatic massage and pneumatic deformation. This necessitates the installation of air hoses within the seat to supply air for these adjustments. However, if the air hose is a single, continuous unit directly connecting the adjustment components (such as air bags or headrest wings) to the inflation device, it would hinder headrest removal. Pulling the headrest out of the seat would typically pull the air hose out with it. Manually disconnecting the hose from the headrest is inconvenient and compromises the seal at the connection point. Therefore, a novel solution is urgently needed. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a pluggable air pipe connection mechanism for vehicle seats, which solves the problems of the structure of the air pipe in existing vehicle seats making it inconvenient to remove the headrest and the manual disconnection of the air pipe from the headrest easily affecting the sealing effect of the air pipe connection.

[0004] The technical solution to achieve the above objectives is:

[0005] This utility model provides a pluggable air hose connection mechanism for a vehicle seat, disposed between the headrest guide rod and the backrest assembly. The pluggable air hose connection mechanism includes:

[0006] Male connector connected to the headrest guide rod;

[0007] A first air tube is inserted into the headrest guide rod and connected to the male end connector;

[0008] Sleeve connected to the backrest assembly;

[0009] Female end connector that can be confined within the sleeve;

[0010] The second air pipe is connected to the female end connector;

[0011] The male end connector can be inserted into the sleeve along with the headrest guide rod and then connected to the female end connector in the sleeve, thereby connecting the first air tube and the second air tube.

[0012] Driven by the headrest guide rod, the female end connector can be released from the limiting position of the sleeve, and then extend out from the other end of the sleeve together with the male end connector;

[0013] Under the reverse drive of the headrest guide rod, the female connector and the male connector can be inserted together from the other end of the sleeve, and then the female connector can be repositioned in the sleeve, and the male connector is further disconnected from the female connector.

[0014] A further improvement of the pluggable air hose connection mechanism for vehicle seats of this utility model is that a limiting mechanism is provided on the sleeve and the female end connector. When the male end connector is inserted into the female end connector, the limiting mechanism can abut or block the female end connector to limit the female end connector within the sleeve.

[0015] A further improvement of the pluggable air hose connection mechanism for the vehicle seat of this utility model is that the limiting mechanism includes a locking plate and a protrusion.

[0016] One of the locking plate and the protrusion is mounted on the sleeve, and the other is mounted on the female end connector.

[0017] A further improvement of the pluggable air hose connection mechanism for the vehicle seat of this utility model is that, when driven by the headrest guide rod, the protrusion can push the locking piece to deform and thus pass over the locking piece, so that the female end connector extends out of the sleeve or is repositioned in the sleeve.

[0018] A further improvement of the pluggable air hose connection mechanism for vehicle seats of this utility model is that the female connector is provided with a locking mechanism, which has a locked state and an unlocked state. In the locked state, the locking mechanism locks the male connector and the female connector; in the unlocked state, the locking mechanism releases the locking of the male connector and the female connector.

[0019] When the male connector and the female connector are plugged into each other, the locking mechanism cooperates with the male connector or the headrest guide rod to be in a locked state;

[0020] When the male connector wants to disconnect from the female connector, the locking mechanism cooperates with the sleeve to switch from the locked state to the unlocked state.

[0021] A further improvement of the pluggable air hose connection mechanism for the vehicle seat of this utility model is that the locking mechanism includes a snap ring rotatably mounted on the female end connector.

[0022] The male connector or the headrest guide rod is provided with a locking hole corresponding to the retaining spring;

[0023] When the male connector and the female connector are plugged in, one end of the snap ring can be inserted into the snap hole to achieve the locking state of the female connector and the male connector or the headrest guide rod;

[0024] When the male connector is to be disconnected from the female connector, the inner wall of the sleeve presses against the other end of the retaining spring to separate the retaining spring from the retaining hole, thus achieving the unlocked state.

[0025] A further improvement of the pluggable air hose connection mechanism for the vehicle seat of this utility model is that the male end connector is snapped into place with the headrest guide rod.

[0026] A further improvement of the pluggable air hose connection mechanism for the vehicle seat of this utility model is that one of the male end connector and the female end connector is provided with a plug, and the other is provided with a plug hole that matches the plug.

[0027] A further improvement of the pluggable air hose connection mechanism for the vehicle seat of this utility model is that a sealing ring is provided on the plug connector.

[0028] A further improvement of the pluggable air hose connection mechanism for the vehicle seat of this utility model is that a guide surface is provided at the end of the plug hole near the plug connector.

[0029] The beneficial effects of the pluggable air hose connection mechanism for vehicle seats of this utility model are as follows:

[0030] This utility model's pluggable air tube connection mechanism enables free plugging and unplugging by setting a male end connector and a female end connector, thus facilitating the disassembly and assembly of the headrest. In addition, after the male end connector and the female end connector are plugged in and connected, they can be adjusted in and out relative to the sleeve to adapt to the height adjustment of the headrest. Thus, this utility model's pluggable air tube connection mechanism can both support the air tube to move up and down with the headrest guide rod and realize the function of free plugging and unplugging, which effectively solves the problems of inconvenient headrest disassembly and the easy impact of manual disconnection of the air tube connection on the sealing effect in the existing structure. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the pluggable air hose connection mechanism for the vehicle seat of this utility model.

[0032] Figure 2 This is an exploded exploded structural diagram of the sleeve, the female end connector, and the second air pipe connection structure of the first embodiment of the pluggable air pipe connection mechanism for the vehicle seat of this utility model.

[0033] Figure 3 This is an exploded exploded view of the connection structure of the first air pipe, headrest guide rod, and male end connector of the first embodiment of the pluggable air pipe connection mechanism for vehicle seats of this utility model.

[0034] Figure 4This is an exploded exploded structural diagram of the sleeve, the female end connector, and the second air pipe connection structure of the second embodiment of the pluggable air pipe connection mechanism for the vehicle seat of this utility model.

[0035] Figure 5 This is an exploded exploded view of the connection structure of the first air pipe, headrest guide rod, and male end connector in the second embodiment of the pluggable air pipe connection mechanism for the vehicle seat of this utility model.

[0036] Figure 6 This is a schematic diagram of the connection between the sleeve and the female end connector in the pluggable air pipe connection mechanism of the vehicle seat of this utility model.

[0037] Figure 7 This is a three-dimensional structural diagram of the first embodiment of the female connector in the pluggable air pipe connection mechanism for the vehicle seat of this utility model.

[0038] Figure 8 This is a structural schematic diagram from another perspective of the first embodiment of the female connector in the pluggable air pipe connection mechanism for the vehicle seat of this utility model.

[0039] Figure 9 for Figure 8 The structure shown is a cross-sectional view with one retaining ring omitted.

[0040] Figure 10 This is a three-dimensional structural diagram of the first embodiment of the pluggable air pipe connection mechanism for vehicle seats of this utility model, without the installation of a retaining spring.

[0041] Figure 11 for Figure 10 A schematic diagram of the structure shown from another perspective.

[0042] Figure 12 This is a three-dimensional structural diagram of the second embodiment of the female end connector in the pluggable air pipe connection mechanism for the vehicle seat of this utility model.

[0043] Figure 13 This is a cross-sectional view of the second embodiment of the pluggable air hose connection mechanism for the vehicle seat of this utility model, with one retaining spring omitted.

[0044] Figure 14 This is a schematic diagram of the retaining spring on the female end connector of the pluggable air pipe connection mechanism for the vehicle seat of this utility model.

[0045] Figure 15 This is a cross-sectional view of the retaining ring on the female end connector of the pluggable air hose connection mechanism for the vehicle seat of this utility model.

[0046] Figure 16This is a three-dimensional structural diagram of the retaining spring on the female end connector of the pluggable air pipe connection mechanism for the vehicle seat of this utility model.

[0047] Figure 17 This is a schematic diagram of the female connector in the pluggable air hose connection mechanism of the vehicle seat of this utility model, with the female connector assembled in the sleeve.

[0048] Figure 18 for Figure 17 A schematic diagram of the structure shown from another perspective.

[0049] Figure 19 This is a three-dimensional structural diagram of the sleeve in the pluggable air pipe connection mechanism of the vehicle seat of this utility model.

[0050] Figure 20 This is a partial cross-sectional view of the second end of the sleeve in the pluggable air hose connection mechanism of the vehicle seat of this utility model.

[0051] Figure 21 This is a cross-sectional view of the sleeve in the pluggable air hose connection mechanism of the vehicle seat of this utility model.

[0052] Figure 22 This is a schematic diagram of the locking plate installed on the sleeve of the pluggable air hose connection mechanism for the vehicle seat of this utility model.

[0053] Figure 23 This is a schematic diagram of the connection between the headrest guide rod and the male connector in the pluggable air hose connection mechanism of the vehicle seat of this utility model.

[0054] Figure 24 This is a schematic diagram of the structure of one end of the headrest guide rod connected to the male connector in the pluggable air hose connection mechanism of the vehicle seat of this utility model.

[0055] Figure 25 This is a schematic diagram of the male connector in the pluggable air hose connection mechanism of the vehicle seat of this utility model.

[0056] Figure 26 This is a schematic diagram of the structure in which the male end connector of the pluggable air hose connection mechanism for the vehicle seat of this utility model is snapped together with the headrest guide rod.

[0057] Figure 27 This is a schematic diagram of the structure of the pluggable air pipe connection mechanism for the vehicle seat of this utility model, in which the male end connector is inserted into the sleeve along with the headrest guide rail.

[0058] Figure 28 for Figure 27 A schematic diagram showing the connection between the plug on the male connector and the plug hole on the female connector.

[0059] Figure 29This is a schematic diagram of the structure of the pluggable air hose connection mechanism for vehicle seats of this utility model, showing the connection between the male end connector and the female end connector.

[0060] Figure 30 This is a schematic diagram of the structure of the pluggable air hose connection mechanism for the vehicle seat of this utility model, in which the male end connector and the female end connector extend together from the second end of the sleeve.

[0061] Figure 31 This is a schematic diagram of the structure of the pluggable air hose connection mechanism for a vehicle seat, in which the unlocking part on the inner wall of the sleeve compresses the retaining spring, causing the retaining spring to rotate.

[0062] Figure 32 This is a schematic diagram of the male connector and female connector in the pluggable air hose connection mechanism of the vehicle seat of this utility model.

[0063] Explanation of reference numerals in the attached figures:

[0064] Headrest guide rod-11; clasp-111; guide section-113;

[0065] Male connector-21; First snap-fit ​​part-211; Plug-in part-213; Annular groove-2131; Female connector-22; Protrusion-221; Front guide part-2211; Rear guide part-2212; Snap ring-222; Inlet part-2221; Snap-in part-2222; Arc-shaped extrusion part-2223; Elastic support part-2224; Plug-in hole-223; Mounting pin-224; Pin guide groove-225; Mounting groove-226;

[0066] First trachea-31; Second trachea-32;

[0067] Sleeve-41; First end-41a; Second end-41b; Locking plate-411; First inclined section-4111; Second inclined section-4112; Unlocking part-412; Elastic fixing part-4113; Assembly groove-413; Assembly hole-414; Sealing ring-51. Detailed Implementation

[0068] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0069] See Figure 1This utility model provides a pluggable air hose connection mechanism for vehicle seats, used to provide air supply lines for the pneumatic function of headrests and also to facilitate the removal of headrests. The male connector of this pluggable air hose connection mechanism can be plugged into and connected to the female connector, realizing the connection between the first and second air hoses. This allows for air supply to the headrest to achieve pneumatic function adjustment, such as a pneumatic massage function. Specifically, an air bag can be installed inside the headrest. In this case, the inflation device can communicate with the air bag inside the headrest through the first air hose, the female connector, the second air hose, and the male connector, thereby controlling and adjusting the inflation and deflation of the air bag to achieve the corresponding massage function. For example, the headrest has side wings on both sides, each containing an airbag. The inflation device, via a first air tube, a female connector, a second air tube, and a male connector, communicates with the airbag within the side wing, controlling its inflation and deflation. When the passenger's head needs support, the airbag on the corresponding side wing is inflated, causing it to bulge inwards and provide head support. The male and female connectors of this pluggable air tube connection mechanism can also be disengaged, allowing for easy removal of the headrest. Furthermore, the male and female connectors can move in and out of the sleeve together with the headrest guide rod, achieving air tube connection without affecting the headrest's height adjustment function. The pluggable air tube connection mechanism of this vehicle seat will be described below with reference to the accompanying drawings.

[0070] See Figure 1 This diagram shows a three-dimensional structural schematic of the pluggable air hose connection mechanism for the vehicle seat according to this utility model. (See attached diagram.) Figure 2 This image shows an exploded exploded view of the sleeve, female connector, and second air pipe connection structure of the first embodiment of the pluggable air pipe connection mechanism for a vehicle seat according to this utility model. (See attached image.) Figure 3 This image shows an exploded exploded view of the first air pipe, headrest guide rod, and male connector connection structure of the first embodiment of the pluggable air pipe connection mechanism for a vehicle seat according to this utility model. The following is a combined view with... Figures 1 to 3 The pluggable air hose connection mechanism for the vehicle seat of this utility model will be described.

[0071] like Figures 1 to 3 As shown, the pluggable air hose connection mechanism of this utility model for a vehicle seat is located between the headrest guide rod 11 and the backrest assembly. This pluggable air hose connection mechanism includes a male connector 21, a first air hose 31, a sleeve 41, a female connector 22, and a second air hose 32. Figure 23 As shown, the male connector 21 is connected to the headrest guide rod 11; the first air tube 31 is inserted into the headrest guide rod 11 and connected to the male connector 21; the sleeve 41 is connected to the backrest assembly; combined with Figure 6As shown, the female end connector 22 can be confined within the sleeve 41; the second air pipe 32 is connected to the female end connector 22; wherein, combined with Figures 27 to 29 As shown, the male connector 21 can be inserted into the sleeve 41 along with the headrest guide rod 11, and then connected to the female connector 22 inside the sleeve 41, thereby connecting the first air tube 31 and the second air tube 32. Preferably, the male connector 21 has a first air passage connected to the first air tube 31, and the female connector 22 has a second air passage connected to the second air tube 32. When the male connector 21 and the female connector 22 are connected, the first air passage and the second air passage are connected, thereby connecting the first air tube 31 and the second air tube 32. Figure 30 As shown, driven by the headrest guide rod 11, the female connector 22 can be released from its limiting position with the sleeve 41, and then extend from the other end of the sleeve 41 together with the male connector 21 to accommodate the headrest height adjustment. Furthermore, combined with... Figure 32 As shown, under the reverse drive of the headrest guide rod 11, the female end connector 22 and the male end connector 21 can be inserted together from the other end of the sleeve 41. Then, the female end connector 22 can be repositioned in the sleeve 41, and the male end connector 21 can be further disconnected from the female end connector 22, so that the first air tube 31 and the second air tube 32 are separated. At this time, the headrest can be pulled out to disassemble the headrest.

[0072] like Figure 27 As shown, the sleeve 41 has a first end 41a and a second end 41b arranged opposite to each other. The headrest guide rod 11 can be inserted into the sleeve 41 from the first end 41a. At this time, the movement direction of the headrest guide rod 11 and the male end connector 21 is as follows: Figure 27 In the F1 direction, the movement adjustment of the headrest guide rod 11 can be used to mount the headrest onto the backrest assembly; combined with Figure 28 and Figure 29 As shown, as the headrest guide rod 11 continues to move in the direction of F1, the male connector 21 and the female connector 22 are inserted and connected. At this time, the headrest can be installed and in a high position. Figure 30 As shown, the headrest guide rod 11 continues to move in the direction of F1, and the male end connector 21 and the female end connector 22 extend together from the second end 41b of the sleeve 41. At this time, the headrest position can be lowered, and the headrest guide rod 11 moves towards... Figure 32When the headrest is moved in the F2 direction, the position of the headrest can be adjusted. As the headrest guide rod 11 continues to move in the F2 direction, the male end connector 21 and the female end connector 22 can be inserted into the sleeve 41 from the second end 41b. Then the female end connector 22 can be repositioned in the sleeve 41, and the male end connector 21 can be disconnected from the female end connector 22 to achieve separation. The headrest guide rod 11 can continue to move in the F2 direction and be pulled out from the first end 41a of the sleeve 41. At this time, the headrest can be pulled out from the backrest assembly to achieve disassembly of the headrest.

[0073] The pluggable air tube connection mechanism of this utility model enables the connection of the first and second air tubes through the male and female connectors after the headrest is installed, allowing air to be supplied to the headrest. The first and second air tubes can also be moved and adjusted along the headrest guide rod to meet the height adjustment function of the headrest. That is, while realizing the air supply function, it also has the function of vertical movement. In addition, the male and female connectors can be disconnected to facilitate the disassembly of the headrest.

[0074] In one specific embodiment of this utility model, such as Figure 2 and Figure 21 As shown, the sleeve 41 and the female connector 22 are provided with a limiting mechanism. When the male connector 21 and the female connector 22 are inserted, the limiting mechanism can abut or block the female connector 22 to limit the female connector 22 within the sleeve 41. The limiting mechanism can prevent the female connector 22 from coming out of the sleeve 41.

[0075] Furthermore, when the female end connector 22 is about to extend from the second end 41b of the sleeve 41, the limiting mechanism can release the limiting of the female end connector 22.

[0076] By setting the limiting mechanism, the female end connector 22 can be pre-assembled in the sleeve 41 so as to be plugged into the male end connector 21.

[0077] In one specific embodiment, the limiting mechanism is elastic and can undergo elastic deformation, so that when the female end connector 22 moves toward the second end 41b of the sleeve 41, it can squeeze the limiting mechanism to cause elastic deformation, thereby releasing the limiting of the female end connector 22.

[0078] In a preferred embodiment, such as Figure 21 , Figure 22 , Figure 9 and Figure 10As shown, the limiting mechanism includes a locking plate 411 and a protrusion 221. The locking plate 411 has a certain elasticity. One of the locking plate 411 and the protrusion 221 is mounted on the sleeve 41, and the other of the locking plate 411 and the protrusion 221 is mounted on the female end connector 22. The protrusion 221 and the locking plate 411 can cooperate with each other to prevent the female end connector 22 from dislodging from the sleeve 41. Furthermore, under the drive of the headrest guide rod 11, the protrusion 221 can also push the locking plate 411 to deform and thus pass over the locking plate 411, so that the female end connector 22 extends out of the sleeve 41 or is re-limited in the sleeve 41.

[0079] Figure 21 In the embodiment shown, the locking piece 411 is mounted on the sleeve 41. Figure 10 In the embodiment shown, the protrusion 221 is mounted on the female connector 22, and combined with... Figure 6 and Figure 28 As shown, when the female connector 22 is inserted into the sleeve 41, the protrusion 211 can push the locking plate 411, causing the locking plate 411 to move and deform towards the inside of the sleeve 41, thereby allowing the protrusion 211 to pass over the locking plate 411. Then the locking plate 411 resets and abuts against the corresponding part of the female connector 22 near the protrusion 211 or blocks the protrusion 211. The locking plate 411 blocks the protrusion 211, thereby limiting the female connector 22. When the female connector 22 wants to extend out of the sleeve 41, the protrusion 221 can push the locking plate 411 in the opposite direction and pass over the locking plate 411 to release the limitation.

[0080] Furthermore, combined Figure 21 and Figure 22 As shown, the sleeve 41 has an assembly groove 413 on its side wall. The locking piece 411 is installed in the assembly groove 413. A portion of the locking piece 411 protrudes from the assembly groove 413 into the interior of the sleeve 41. The protruding portion can cooperate with the protrusion 211 on the female end connector 22 to limit the position of the female end connector 22.

[0081] Furthermore, the locking plate 411 is provided with a first inclined section 4111 and a second inclined section 4112, which are connected and the connection point of the first inclined section 4111 and the second inclined section 4112 protrudes inside the sleeve 41. By pressing the connection point of the first inclined section 4111 and the second inclined section 4112, the connection point of the first inclined section 4111 and the second inclined section 4112 can be retracted into the mounting groove 413.

[0082] Furthermore, the locking piece 411 has elastic fixing portions 4113 at both ends, which allow the locking piece 411 to be installed in the mounting groove 413. Preferably, mounting holes 414 are provided on the side wall of the sleeve 41 corresponding to the two ends of the mounting groove 413. The opening of the mounting hole 414 is located on the outer wall surface of the sleeve 41. When the locking piece 411 is inserted into the mounting groove 413, the elastic fixing portions 4113 at the ends of the locking piece 411 can be engaged into the mounting holes 414, thereby preventing the locking piece 411 from detaching from the mounting groove 413 of the sleeve 41.

[0083] Furthermore, the number of locking pieces 411 can be at least one. In a preferred embodiment, two locking pieces 411 are provided and are arranged opposite to each other. Correspondingly, the number of protrusions 221 is consistent with the number of locking pieces 411.

[0084] Furthermore, such as Figure 9 and Figure 10 As shown, the protrusion 221 on the female end connector 22 includes a front guide surface 2211 and a rear guide surface 2212. The front guide surface 2211 and the rear guide surface 2212 facilitate the engagement of the protrusion 221 with the locking piece 411. Figure 21 and Figure 28 As shown, when the female end connector 22 is inserted into the sleeve 41 from the second end 41b, the front guide surface 2211 of the protrusion 221 contacts the second inclined section 4112 on the locking piece 411. The front guide surface 2211 facilitates the protrusion 221 to push the locking piece 411, causing the locking piece 411 to retract into the assembly groove 413 of the sleeve 41. The protrusion 211 can easily pass over the locking piece 411 to realize the assembly of the female end connector 22. When the female end connector 22 extends from inside the sleeve 41 toward the outside of the second end 41b, the rear guide surface 2212 of the protrusion 221 contacts the first inclined section 4111 on the locking piece 411. The rear guide surface 2212 facilitates the protrusion 221 to push the locking piece 411 in the opposite direction so that the locking piece 411 retracts toward the assembly groove 413 of the sleeve 41. The protrusion 211 can easily pass over the locking piece 411, thereby separating the female end connector 22 from the sleeve 41.

[0085] Of course, the limiting mechanism in this utility model is not limited to the structure of locking plate and protrusion. It can also be other telescopic structures and compatible push structures, as long as the limiting can be released when the female end connector moves toward the second end 41b.

[0086] In one specific embodiment of this utility model, such as Figure 7 and Figure 8As shown, the female connector 22 is equipped with a locking mechanism; this locking mechanism has a locked state and an unlocked state. In the locked state, the locking mechanism locks the male connector 21 and the female connector 22; in the unlocked state, the locking mechanism releases the lock on the male connector 21 and the female connector 22. Figures 27 to 29 As shown, when the male connector 21 and the female connector 22 are plugged in, the locking mechanism cooperates with the male connector 21 or the headrest sleeve 11 to be in a locked state; when the male connector 21 wants to be unplugged from the female connector 22, the locking mechanism cooperates with the sleeve 41 to switch from the locked state to the unlocked state.

[0087] The locking mechanism can lock the male connector 21 and the female connector 22 together after they are plugged in, thereby improving the reliability of the connection between the first air tube 31 and the second air tube 32.

[0088] Furthermore, such as Figures 7 to 9 as well as Figure 23 and Figure 24 As shown, the locking mechanism includes a retaining ring 222 rotatably mounted on the female connector 22; a retaining hole 111 corresponding to the retaining ring 222 is provided on the male connector 21 or the headrest guide rod 11; combined with Figure 29 As shown, when the male connector 21 and the female connector 22 are plugged in, one end of the retaining ring 222 can be inserted into the retaining hole 111 to achieve the locking state of the female connector 22 and the male connector 21 or the headrest guide rod 11; when the male connector 21 wants to disconnect from the female connector 22, the inner wall of the sleeve 41 presses the other end of the retaining ring 222 to separate the retaining ring 222 from the retaining hole 111, thereby achieving the unlocked state.

[0089] Furthermore, the snap ring 222 is rotatably mounted on the female connector 22 via the mounting pin 224, in conjunction with... Figure 9 and Figure 10 As shown, a guide groove 225 is provided on the female end connector 22 corresponding to the mounting pin 224, which is combined with... Figure 9 As shown, the mounting pin 224 is installed in the pin guide groove 225, and in conjunction with... Figures 14 to 16As shown, the mounting pin 224 is located in the middle of the retaining spring 222. One end of the retaining spring 222 has a locking portion 2222, and the other end has an arc-shaped pressing portion 2223. The retaining spring 222 also has an elastic support portion 2224, which is arranged around the mounting pin 224. The female connector 22 has a mounting groove 226 corresponding to the retaining spring 222. During installation, the elastic support portion 2224 contacts the bottom wall of the mounting groove 226. The locking portion 2222 is located on the outside of the female connector 22. The locking portion 2222 can be locked into the corresponding locking hole 111 on the male connector 21 or the headrest guide rod 11, thereby locking the male connector 21. When unlocking, the inner wall of the sleeve 41 pushes the arc-shaped pressing part 2223 downward, which causes the snap ring 222 to rotate around the mounting pin 224, and then the snap part 222 disengages from the snap hole 111, thus unlocking. At this time, pulling out the male connector 21 will release the plug-in connection between the male connector 21 and the female connector 22.

[0090] Furthermore, the end of the retaining ring 222 near the insertion part 2222 is also provided with an inlet part 2221. The inlet part 2221 is an inclined surface, which can facilitate the introduction of the male end connector 21 and the headrest guide rod 11 into the inner side of the retaining ring 222, so as to realize the insertion connection between the male end connector 21 and the female end connector 22.

[0091] Furthermore, such as Figure 7 and Figure 8 As shown, the number of snap rings 222 is at least one, preferably two snap rings 222 are provided and arranged opposite to each other.

[0092] Furthermore, such as Figure 19 and Figure 20 As shown, an unlocking part 412 is provided on the inner wall surface of the sleeve 41. This unlocking part 412 is used to press the arc-shaped pressing part 2223 of the retaining spring 222, so as to allow the snap-fit ​​part 2222 on the retaining spring 222 to disengage from the snap hole 111. Figure 31 As shown, the unlocking part 412 is a protrusion formed on the inner wall surface of the sleeve 41 and protruding towards the inside of the sleeve 41. The protrusion has two inclined surfaces corresponding to the first end 41a and the second end 41b of the sleeve 41, so that the arc-shaped pressing part 2223 at the end of the retaining spring 222 can pass smoothly through the protrusion. When the male end connector 21 wants to disengage from the female end connector 22, the unlocking part 412 presses the arc-shaped pressing part 2223 of the retaining spring 222, causing the snap-in part 2222 on the retaining spring 222 to rotate upward around the mounting pin 224 and disengage from the snap hole 111, thus achieving the unlocked state.

[0093] Although the unlocking part 412 has two inclined surfaces, during the process of the male end connector 21 and the female end connector 22 extending together from the second end 41b of the sleeve 41, the unlocking part 412 will also squeeze the arc-shaped squeezing part 2223 of the snap ring 222, causing the snap-in part 2222 of the snap ring 222 to disengage from the snap hole 111 to achieve the unlocked state. However, since the movement directions of the male end connector 21 and the female end connector 22 are consistent, the male end connector 21 will not disengage from the female end connector 22. After passing the unlocking part 412, the snap-in part 2222 of the snap ring 222 will re-engage into the snap hole 111 to achieve the locked state.

[0094] In one specific embodiment of this utility model, such as Figures 23 to 25 As shown, the male connector 21 is snapped into place with the headrest guide rod 11.

[0095] Specifically, a locking protrusion or locking hole is provided on one of the male end connector 21 and the headrest guide rod 11, and a locking hole or locking protrusion is provided on the other of the male end connector 21 and the headrest guide rod 11. The locking protrusion and the locking hole cooperate to achieve the locking of the male end connector 21 and the headrest guide rod 11.

[0096] When a locking hole is provided on the headrest guide rod 11, the locking hole can share a hole with the snap hole 111 provided on the headrest guide rod 11 that cooperates with the snap ring 222.

[0097] The optimal number of keyholes and latches is two.

[0098] Furthermore, such as Figure 24 As shown, the end of the headrest guide rod 11 that connects to the male connector 21 is provided with a guide portion 113. The guide portion 113 facilitates the engagement with the guide portion 2221 of the snap ring 222 provided on the female connector 22, thereby facilitating the insertion and connection of the male connector 21 and the female connector 22.

[0099] In one specific embodiment of this utility model, such as Figure 2 , Figure 3 , Figure 25 and Figure 9 as well as Figure 4 , Figure 5 , Figure 12 and Figure 13 As shown, one of the male connector 21 and the female connector 22 is provided with a plug 213, and the other of the male connector 21 and the female connector 22 is provided with a plug hole 223; when the male connector 21 and the female connector 22 are plugged in, the plug 213 is plugged into the plug hole 223.

[0100] Furthermore, the connector 213 is provided with a sealing ring 51. The sealing ring 51 is preferably fitted onto the connector 213, and the number of sealing rings 51 can be at least one. The sealing ring 51 can improve the sealing performance between the connector and the insertion hole.

[0101] The connector 213 is provided with two annular grooves 2131, and the sealing ring 51 is fitted into the corresponding annular grooves 2131.

[0102] Furthermore, the end of the insertion hole 223 near the connector 213 is provided with a guide surface to facilitate the insertion of the connector 213 into the insertion hole 223.

[0103] The working principle of the pluggable air hose connection mechanism for the vehicle seat of this utility model will be explained below with reference to the accompanying drawings.

[0104] like Figures 27 to 29 As shown, during headrest installation, the headrest guide rod 11 is inserted into the backrest assembly (in the direction shown by F1). A male connector 21 is pre-connected to the headrest guide rod 11, and a female connector 22 is pre-installed in the sleeve 41. The headrest guide rod 11, along with the male connector 21, moves in the direction shown by F1. When it encounters the guide portion 2221 of the retaining spring 222, the guide portion 113 at the end of the headrest guide rod 11 contacts the guide portion 2221, thereby pushing the male connector 21 and the headrest guide rod 11 together between the two retaining springs 222. The headrest guide rod 11 and the male connector 21 continue to move in the direction shown by F1, causing the male connector 21 to insert into the female connector 22. The plug 213 is inserted into the plug hole 223, and the snap-fit ​​part 2222 on the snap-fit ​​spring 222 snaps into the snap-fit ​​hole 111, thus locking the male connector 21 and the headrest guide rod 11. Figure 29 The state shown represents the headrest being installed in place. At this time, the first air pipe 31 and the second air pipe 32 are connected, supplying air for the pneumatic function of the headrest.

[0105] When the headrest height needs to be lowered, press the headrest down. The headrest guide rod 11 and the male connector 21 will move together in the direction shown by F1. Figure 30 As shown, the female end connector 22 extends from the second end 41b of the sleeve 21. At this time, the position can be adjusted according to the height of the headrest. During the adjustment process, the first air tube 31 and the second air tube 32 remain connected.

[0106] When it is necessary to remove the headrest, such as Figure 32As shown, when the headrest is pulled upwards, the headrest guide rod 11 and the male connector 21 move together in the direction shown by F2. The male connector 21 and the female connector 22 are inserted together from the second end 41b of the sleeve 41, or the male connector 21 and the female connector 22 move inside the sleeve 41 towards the first end 41a, thus combining... Figure 31 As shown, the unlocking part 412 on the sleeve 41 pushes the arc-shaped pressing part 2223 on the retaining spring 222, so that the retaining spring 222 rotates around the mounting pin 224, causing the inserting part 2222 to disengage from the retaining hole 111, releasing the lock on the male end connector 21 and the headrest guide rod 11. The male end connector 21 and the headrest guide rod 11 can then be separated from the female end connector 22. The male end connector 21 can be pulled out of the sleeve 41 along with the headrest guide rod 11, thus completing the removal of the headrest.

[0107] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A pluggable air hose connection mechanism for a vehicle seat, disposed between a headrest guide rod (11) and a backrest assembly, characterized in that, The pluggable endotracheal tube connection mechanism includes: Male connector (21) connected to the headrest guide rod (11); A first air tube (31) is inserted into the headrest guide rod (11) and connected to the male end connector (21); Sleeve (41) connected to the backrest assembly; A female end connector (22) that can be confined within the sleeve (41); A second air pipe (32) connected to the female end connector (22); The male end connector (21) can be inserted into the sleeve (41) along with the headrest guide rod (11) and then connected to the female end connector (22) inside the sleeve (41), thereby connecting the first air tube (31) and the second air tube (32). Driven by the headrest guide rod (11), the female end connector (22) can be released from the limiting position of the sleeve (41), and then extend out from the other end of the sleeve (41) together with the male end connector (21); Under the reverse drive of the headrest guide rod (11), the female end connector (22) and the male end connector (21) can be inserted together from the other end of the sleeve (41), and then the female end connector (22) can be repositioned in the sleeve (41), and the male end connector (21) can be further disconnected from the female end connector (22).

2. The pluggable air hose connection mechanism for a vehicle seat as described in claim 1, characterized in that, The sleeve (41) and the female end connector are provided with a limiting mechanism. When the male end connector (21) and the female end connector (22) are inserted, the limiting mechanism can abut or block the female end connector (22) to limit the female end connector (22) inside the sleeve.

3. The pluggable air hose connection mechanism for a vehicle seat as described in claim 2, characterized in that, The limiting mechanism includes a locking piece (411) and a protrusion (221); One of the locking piece (411) and the protrusion (221) is mounted on the sleeve (41), and the other is mounted on the female end connector (22).

4. The pluggable air hose connection mechanism for a vehicle seat as described in claim 3, characterized in that, When driven by the headrest guide rod (11), the protrusion (221) can push the locking piece (411) to deform and then pass over the locking piece (411), so that the female end connector (22) extends out of the sleeve (41) or is repositioned in the sleeve (41).

5. The pluggable air hose connection mechanism for a vehicle seat as described in claim 1, characterized in that, The female connector (22) is provided with a locking mechanism, which has a locking state and an unlocking state. In the locking state, the locking mechanism locks the male connector (21) and the female connector (22); in the unlocking state, the locking mechanism releases the locking of the male connector (21) and the female connector (22). When the male connector (21) and the female connector (21) are plugged into each other, the locking mechanism cooperates with the male connector (21) or the headrest guide rod (11) to be in a locked state; When the male connector (21) wants to disconnect from the female connector (22), the locking mechanism cooperates with the sleeve (41) to switch from the locked state to the unlocked state.

6. The pluggable air hose connection mechanism for a vehicle seat as described in claim 5, characterized in that, The locking mechanism includes a snap ring (222) rotatably mounted on the female end connector (22); The male end connector (21) or the headrest guide rod (11) is provided with a locking hole (111) corresponding to the retaining ring (222); When the male connector (21) and the female connector (22) are plugged into each other, one end of the snap ring (222) can be inserted into the snap hole (111) to achieve the locking state of the female connector (22) and the male connector (21) or the headrest guide rod (11); When the male connector (21) is about to be disconnected from the female connector (22), the inner wall of the sleeve (41) presses against the other end of the snap ring (222) to separate the snap ring (222) from the snap hole (111) and achieve the unlocked state.

7. The pluggable air hose connection mechanism for a vehicle seat as described in claim 1, characterized in that, The male end connector (21) is snapped into place with the headrest guide rod (11).

8. The pluggable air hose connection mechanism for a vehicle seat as described in claim 1, characterized in that, One of the male connector (21) and the female connector (22) is provided with a plug (213), and the other is provided with a plug hole (223) that matches the plug (213).

9. The pluggable air hose connection mechanism for a vehicle seat as described in claim 8, characterized in that, The connector (213) is provided with a sealing ring (51).

10. The pluggable air hose connection mechanism for a vehicle seat as described in claim 8, characterized in that, The insertion hole (223) has a guide surface at the end near the insertion connector (213).

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