CN107009924A - A kind of armrest system for stopping function with secondary latch - Google Patents

Abstract

The invention relates to the technical field of automobile interior decoration systems, and discloses a handrail device with a secondary locking function. The inner plate of the sliding cover slides along the armrest frame, and drives the lock hook unit to slide along the locking mechanism, so that the lock hook unit can be locked from the lock The first-level locking structure of the locking mechanism is unlocked, and then enters the second-level locking structure through the first inclined-plane guide part on the locking channel and the second inclined-plane guide part on the first limit guide block, and finally locks in the locking mechanism. The secondary locking structure of the mechanism, so that the armrest device with the secondary locking function adds an intermediate armrest state between the long armrest state and the short armrest state and locks this state, thereby improving the two-stage locking function. The human-machine comfort of the armrest device with advanced locking function makes it suitable for a wider range of people.

Description

An armrest device with a secondary locking function

technical field

The invention relates to the technical field of automobile interior decoration systems, in particular to an armrest device with a secondary locking function.

Background technique

At present, the existing armrest device only has the function of primary locking, so it can only provide two armrest states. When the armrest device is unlocked from the primary locking structure and slides to the front end, the armrest device is in the long armrest state ; When the armrest device slides to the rearmost end and is locked in the primary locking structure, the armrest device is in a short armrest state. Since the seat position of a short person is relatively forward, it is more suitable for a long armrest state; while the seat position of a tall person is relatively rearward, so it is more suitable for a short armrest state.

However, for people who are between short and tall, from the perspective of ergonomics, both the long armrest state and the short armrest state will lead to poor ergonomic comfort experience for this group of people. Since the position of the seat can move back and forth, it can be considered to add an intermediate armrest state between the long armrest state and the short armrest state and lock this state, so that the man-machine comfort of the armrest device is better, so as to adapt to the wider population.

Contents of the invention

The object of the present invention is to provide an armrest device with a secondary locking function to solve the technical problem that the existing armrest device does not have an intermediate armrest state, so as to improve the man-machine comfort of the armrest device.

In order to solve the above technical problems, the present invention provides an armrest device with a secondary locking function, which includes an armrest frame and a sliding cover inner plate, and the sliding cover inner plate is slidably connected to the armrest frame; the armrest A locking mechanism is provided on the frame, and a lock hook unit is provided on the inner plate of the sliding cover. When the inner plate of the sliding cover slides along the armrest frame, the locking hook unit slides along the locking mechanism, and Rotate along the inner plate of the sliding cover; the locking mechanism includes a primary locking structure, a secondary locking structure and a locking channel connecting the primary locking structure and the secondary locking structure, the One end of the locking channel close to the secondary locking structure is provided with a first slope guide for guiding the lock hook unit into the secondary locking structure, and the secondary locking structure is provided with a first As for the limit guide block, the first limit guide block is provided with a second inclined-plane guide portion for guiding the lock hook unit into the secondary lock structure at one end close to the locking channel.

As a preferred solution, a straight guide is provided in the middle of the locking channel.

As a preferred solution, the first limiting guide block is provided with a first limiting portion; during secondary locking, the first limiting portion restricts the lock hook unit from detaching from the secondary locking structure .

As a preferred solution, the first limiting portion is U-shaped, and an opening of the U-shape of the first limiting portion is inclined toward a side away from the second inclined-plane guide portion.

As a preferred solution, the first limiting guide block is also provided with a first guide part, a second guide part and a third inclined guide part connecting the first guide part and the second guide part, and the first guide part The three-slope guiding part is inclined to the second guiding part, and the first guiding part is connected with the first limiting part; the secondary locking structure is also provided with a first heart-shaped locking block, and the second guiding part is provided with a first heart-shaped locking block. A heart-shaped locking block is provided with a first recessed locking portion, and the first recessed locking portion is opposite to the third inclined-plane guide portion.

As a preferred solution, the first-level locking structure is provided with a second limit guide block, and the second limit guide block is provided with a first limit guide part, a second limit guide part, and a link connecting the first limit guide block. A limit guide part and the fourth inclined guide part of the second limit guide part, the fourth inclined guide part is inclined to the first limit guide part; the primary locking structure is also provided with The second heart-shaped locking block, the second heart-shaped locking block is provided with a second recessed locking part, and the second recessed locking part is arranged opposite to the fourth inclined-plane guide part.

As a preferred solution, a lock pin is provided on the bottom of the lock hook unit, a lock slot is provided on the locking mechanism, and the lock pin is slidably connected in the lock slot.

As a preferred solution, a mounting part is provided on the top of the locking hook unit, a mounting hole is provided on the inner plate of the sliding cover, and the mounting part is rotatably connected to the mounting hole.

As a preferred solution, the installation part is provided with a plurality of elastic clamping parts, and an annular clamping part is provided around the installation hole, and the plurality of elastic clamping parts are clamped on the annular clamping part, And it can rotate around the ring clamping part.

As a preferred solution, the left and right sides of the locking hook unit are respectively provided with a first elastic side wing and a second elastic side wing, and the tail of the locking hook unit is provided with an elastic tail.

As a preferred solution, the armrest device with a secondary locking function further includes a spring, the armrest frame is provided with an accommodating groove, the accommodating groove is provided with a guide rod, and the spring is sleeved on the guide rod. on the rod; the bottom of the inner plate of the sliding cover is provided with a sliding part, the inner plate of the sliding cover is slidably connected to the guide rod through the sliding part, and the sliding part leans against the spring on one end and compress the spring.

As a preferred solution, a rack is provided on the bottom of the inner plate of the sliding cover, a damper is provided on the frame of the armrest, a gear is provided on the damper, and the rack meshes with the gear.

As a preferred solution, the armrest device with secondary locking function also includes a guide rail assembly, the armrest frame is provided with a first slope, the inner plate of the sliding cover is provided with a second slope, and the second slope passes through The guide rail assembly is connected to the first slope.

As a preferred solution, the inclination angle of the first inclined surface is 30°-60°, and the inclination angle of the second inclined surface is 30°-60°.

As a preferred solution, a buffer pad is provided on the end of the armrest frame close to the primary locking structure.

The invention provides a handrail device with a secondary locking function, which includes a handrail frame and a sliding cover inner plate, the sliding cover inner plate is slidably connected to the armrest frame; the armrest frame is provided with a locking mechanism, and the sliding cover inner plate There is a locking hook unit on the top, when the inner panel of the sliding cover slides along the armrest frame, the locking hook unit slides along the locking mechanism and rotates along the inner panel of the sliding cover; the locking mechanism includes a primary locking structure and a secondary locking structure And the locking channel connecting the primary locking structure and the secondary locking structure, the end of the locking channel close to the secondary locking structure is provided with a first slope guide for guiding the lock hook unit into the secondary locking structure, The secondary locking structure is provided with a first limit guide block, and one end of the first limit guide block close to the locking passage is provided with a second slope guide for guiding the lock hook unit into the secondary locking structure. The inner plate of the sliding cover slides along the armrest frame, driving the locking hook unit to slide along the locking mechanism, so that the locking hook unit is unlocked from the primary locking structure of the locking mechanism, and passes through the first inclined plane guide part and the locking channel in turn. The second inclined-plane guide part on the first limit guide block enters the secondary locking structure, and finally locks on the secondary locking structure of the locking mechanism, so that the armrest device with the secondary locking function can be used on the long armrest An intermediate armrest state is added between the short armrest state and the short armrest state, and this state is locked, thereby improving the man-machine comfort of the armrest device with the secondary locking function and making it suitable for a wider range of people.

Description of drawings

Fig. 1 is an exploded view of a handrail device with a secondary locking function in an embodiment of the present invention;

Fig. 2 is the front view of the armrest device with the secondary locking function in the short armrest state in the embodiment of the present invention;

Fig. 3 is a front view of the armrest device with the secondary locking function in the middle armrest state in the embodiment of the present invention;

Fig. 4 is the front view of the armrest device with secondary locking function in the long armrest state in the embodiment of the present invention;

Fig. 5 is a schematic diagram of the locking hook unit in the locking mechanism in the embodiment of the present invention, from the primary unlocking to the secondary locking process;

Fig. 6 is a schematic diagram of the secondary unlocking process of the lock hook unit in the locking mechanism in the embodiment of the present invention;

Fig. 7 is a schematic diagram of the secondary locking process of the locking hook unit in the locking mechanism in the embodiment of the present invention;

Fig. 8 is a schematic diagram of the locking hook unit in the locking mechanism in the embodiment of the present invention, from the secondary unlocking to the primary locking process;

Fig. 9 is a partial enlarged view of the secondary locking structure in the embodiment of the present invention;

Fig. 10 is a partial enlarged view of the primary locking structure in the embodiment of the present invention;

Fig. 11 is a schematic structural view of the lock hook unit in the embodiment of the present invention;

Fig. 12 is a schematic structural view of the armrest skeleton in the embodiment of the present invention;

Fig. 13 is a schematic structural view of the inner panel of the sliding cover in the embodiment of the present invention;

Fig. 14 is a schematic structural view of the armrest skeleton assembly in the embodiment of the present invention;

Fig. 15 is a schematic structural view of the inner panel assembly of the slide cover in the embodiment of the present invention;

Fig. 16 is a schematic diagram of the assembly of the damper and the gear in the embodiment of the present invention.

Among them, 1. armrest frame; 11. accommodating groove; 12. guide rod; 13. first slope; 2. sliding cover inner plate; 21. installation hole; Rack; 24, second slope; 3, locking mechanism; 31, primary locking structure; 311, second limit guide block; 3111, first limit guide part; 3112, second limit guide part; 3113, the fourth slope guide part; 312, the second heart-shaped lock block; 3121, the second recessed lock part; 32, the secondary locking structure; 321, the first limit guide block; 3211, the second slope guide part ; 3212, the first limiting part; 3213, the first guiding part; 3214, the second guiding part; 3215, the third slope guiding part; 322, the first heart-shaped locking block; . Locking channel; 331. First slope guide; 332. Guide straight; 34. Open structure; 35. Lock groove; 4. Lock hook unit; 41. Lock pin; 42. Installation part; 421. Elastic clip ; 43, the first elastic flank; 44, the second elastic flank; 45, the elastic tail; 5, the spring; 6, the damper; 7, the gear; 8, the rail assembly; 9, the buffer pad; 10, the rotation lock; Lock hook; 14, hinge; 15, lower baffle; 16, storage box; 17, outer plate of sliding cover.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

As shown in FIG. 1 to FIG. 10 , a handrail device with a secondary locking function according to a preferred embodiment of the present invention includes a handrail frame 1 and a sliding cover inner panel 2 , and the sliding cover inner panel 2 is slidably connected to On the armrest frame 1; the armrest frame 1 is provided with a locking mechanism 3, and the sliding cover inner panel 2 is provided with a locking hook unit 4, and the sliding cover inner panel 2 slides along the armrest frame 1 , the locking hook unit 4 slides along the locking mechanism 3, and rotates along the sliding cover inner plate 2; the locking mechanism 3 includes a primary locking structure 31, a secondary locking structure 32 and a connection The locking channel 33 of the primary locking structure 31 and the secondary locking structure 32, the locking channel 33 is provided at one end close to the secondary locking structure 32 for guiding the locking hook unit 4 Enter the first slope guide part 331 of the secondary locking structure 32, the secondary locking structure 32 is provided with a first limit guide block 321, and the first limit guide block 321 is close to the lock One end of the locking channel 33 is provided with a second slope guide portion 3211 for guiding the locking hook unit 4 into the secondary locking structure 32 .

In the embodiment of the present invention, the sliding cover inner panel 2 slides along the armrest frame 1 to drive the lock hook unit 4 to slide along the locking mechanism 3, so that the lock hook unit 4 is released from the lock The primary locking structure 31 of the locking mechanism 3 is unlocked, and passes through the first slope guide portion 331 on the locking channel 33 and the second slope on the first limit guide block 321 in sequence. The guide part 3211 enters the secondary locking structure 32, and finally locks on the secondary locking structure 32 of the locking mechanism 3, so that the armrest device with the secondary locking function is in the long An intermediate armrest state is added between the armrest state and the short armrest state and this state is locked, thereby improving the man-machine comfort of the armrest device with the secondary locking function, making it suitable for a wider range of people .

As shown in FIG. 1 to FIG. 10 , in order to facilitate the locking hook unit 4 to enter the first inclined-plane guide portion 331 of the locking channel 33 when unlocking at the first level, the locking channel in this embodiment 33 is provided with a guide straight 332, through which the lock hook unit 4 is limited and guided, so that the lock hook unit 4 is easy to enter the first inclined plane guide through the guide straight 332 321, so as to facilitate the locking hook unit 4 to achieve primary unlocking in the locking mechanism 3 .

As shown in FIG. 1 to FIG. 10 , in the secondary locking, in order to prevent the locking hook unit 4 from coming out of the secondary locking structure 32, to realize that the locking hook unit 4 is locked in the locking mechanism 3, the second-level locking, the first limiting guide block 321 in this embodiment is provided with a first limiting portion 3212; in the second-level locking, the first limiting portion 3212 limits the The locking hook unit 4 escapes from the secondary locking structure 32; after the locking hook unit 4 enters the secondary locking structure 32, the locking hook unit 4 is limited by the first limiting portion 3212 Located in the secondary locking structure 32, so as to prevent the locking hook unit 4 from coming out of the secondary locking structure 32 and directly entering the locking channel 33, so as to realize that the locking hook unit 4 Secondary locking in the locking mechanism 3 .

As shown in FIG. 1 to FIG. 10 , in order to better limit the locking hook unit 4 through the first limiting portion 3212 and at the same time improve the strength of the first limiting portion 3212 , in this embodiment The first limiting portion 3212 is U-shaped, and the U-shaped opening of the first limiting portion 3212 is inclined toward the side away from the second slope guide portion 3211, so that the lock hook unit 4 enters the The bottom of the first limiting portion 3212, so that the first limiting portion 3212 securely limits the locking hook unit 4 in the secondary locking structure 32, so as to realize that the locking hook unit 4 is in the second locking structure 32. Describe the secondary locking in the locking mechanism 3. In addition, since the first limiting portion 3212 is U-shaped, when the hook unit 4 collides with the first limiting portion 3212, the first limiting portion 3212 is not prone to stress concentration. or impact and break, thereby improving the strength of the first limiting portion 3212 .

Of course, in the embodiment of the present invention, the shape of the first limiting portion 3212 can also be L-shaped or V-shaped, as long as it is convenient to limit the locking hook unit 4 and raise the first limiting portion. The strength of the part 3212 is enough, and no more details are given here.

As shown in FIGS. 1 to 10 , in order to guide the lock hook unit 4 during primary locking, secondary locking and secondary unlocking, so as to realize that the locking hook unit 4 is locked in the locking mechanism 3 secondary locking, primary unlocking and secondary unlocking, the first limit guide block 321 in this embodiment is also provided with a first guide part 3213, a second guide part 3214 and connecting the first The guide part 3213 and the third slope guide part 3215 of the second guide part 3214, the third slope guide part 3215 is inclined to the second guide part 3214, the first guide part 3213 and the first limit The second locking structure 32 is also provided with a first heart-shaped locking block 322, and the first heart-shaped locking block 322 is provided with a first concave locking portion 3221, and the first The recessed locking portion 3221 is disposed opposite to the third inclined-plane guide portion 3215 . Through the guiding effect of the first guiding part 3213, the locking hook unit 4 slides from the first limiting part 3212 along the first guiding part 3213, and enters into the locking part of the first concave part. 3221 to perform secondary locking to complete the secondary locking of the lock hook unit 4 in the locking mechanism 3; The guiding effect makes the locking hook unit 4 escape from the first recessed locking portion 3221, so that the locking hook unit 4 enters the first locking structure 31 through the locking channel 33 and performs a first-level locking; in addition, through the guiding effect of the third inclined plane guide portion 3215, it is also beneficial for the locking hook unit 4 to escape from the first recessed locking portion 3221 and perform secondary unlocking.

As shown in FIG. 1 to FIG. 10 , in order to realize the primary locking and primary unlocking of the locking hook unit 4 in the locking mechanism 3 , the primary locking structure 31 in this embodiment is provided with There is a second limit guide block 311, and the second limit guide block 311 is provided with a first limit guide part 3111, a second limit guide part 3112 and a connection between the first limit guide part 3111 and the The fourth inclined guide part 3113 of the second limit guide part 3112, the fourth inclined guide part 3113 is inclined to the first limit guide part 3111; the first-level locking structure 31 is also provided with a second core The shape lock block 312 , the second heart-shaped lock block 312 is provided with a second recessed locking portion 3121 , and the second recessed locking portion 3121 is opposite to the fourth inclined-plane guide portion 3113 . Through the limit guide function of the second limit guide part 3112, the lock hook unit 4 enters the second recessed locking part 3121 along the second limit guide part 3112 to complete the lock hook The unit 4 is locked at the first level in the locking mechanism 3; in addition, through the guiding action of the fourth inclined plane guide part 3113 and the first limit guide part 3111, the lock hook unit 4 is locked from the The second concave locking portion 3121 is disengaged, so as to complete the primary unlocking of the locking hook unit 4 in the locking mechanism 3 .

As shown in FIG. 1 to FIG. 10 , in order to simplify the structure and reduce the cost, the first limiting guide part 3111 in this embodiment is L-shaped, and the second limiting guide part 3112 is L-shaped. Of course, in the embodiment of the present invention, the first limit guide part 3111 and the second limit guide part 3112 can also be in other shapes, as long as they have a good limit guide for the lock hook unit 4 The function is sufficient, and no more details are given here.

As shown in FIG. 1 to FIG. 10 , in order to facilitate the locking hook unit 4 to enter the secondary locking structure 32 for secondary locking, the locking mechanism 3 in this embodiment is far away from the first One end of the locking structure 31 is provided with a figure-eight open structure 34 connected to the secondary locking structure 32, through the guiding effect of the opening structure 34, the locking hook unit 4 can better enter the The secondary locking structure 32 is used for secondary locking of the locking hook unit 4 . Of course, in the embodiment of the present invention, the open structure 34 can also be in other shapes, as long as it is convenient for the locking hook unit 4 to better enter the secondary locking structure 32 for secondary locking. , no further details will be given here.

In the embodiment of the present invention, in order to facilitate the processing and molding of the locking mechanism 3 and reduce costs, preferably, the locking mechanism 3 and the armrest frame 1 are integrally injection molded. Of course, in the embodiment of the present invention, the locking mechanism 3 and the armrest frame 1 can also be molded separately and then connected together, as long as the processing and forming of the locking mechanism 3 is convenient, and it is not done here. More on that.

As shown in FIG. 11 and FIG. 12 , in order to rationalize the structure so that the locking hook unit 4 can slide along the locking mechanism 3 , the bottom of the locking hook unit 4 in this embodiment is provided with a locking pin 41 , the lock mechanism 3 is provided with a lock slot 35, and the lock pin 41 is slidably connected in the lock slot 35; the lock pin 41 slides along the lock slot 35 to realize the lock The hook unit 4 slides along said locking mechanism 3 .

In addition, in the embodiment of the present invention, during the sliding process of the locking hook unit 4 along the locking mechanism 3 , since the locking hook unit 4 will collide with the first lock in the locking mechanism 3 The locking structure 31, the secondary locking structure 32 and the locking channel 33 etc. are in contact with each other to cause jamming. Therefore, the locking hook unit 4 must be rotated along the sliding cover inner plate 2 to avoid During the sliding process of the locking hook unit 4 along the locking mechanism 3 , a stuck phenomenon occurs, so that the locking hook unit 4 slides along the locking mechanism 3 .

As shown in FIG. 11 and FIG. 13 , in order to rationalize the structure and realize the rotation of the locking hook unit 4 along the inner panel 2 of the sliding cover, a mounting part is provided on the top of the locking hook unit 4 in this embodiment 42 , the inner panel 2 of the sliding cover is provided with a mounting hole 21 , and the mounting portion 42 is rotatably connected to the mounting hole 21 . Specifically, the mounting portion 42 is in the shape of a mushroom head, and is snapped onto the mounting hole 21 through the mounting portion 42 in the shape of a mushroom head, and rotates along the mounting hole 21 to realize the locking hook unit 4 slide along the inner panel 2 of the sliding cover.

As shown in FIG. 11 and FIG. 13 , in order to rationalize the structure so that the mounting portion 42 is rotatably connected to the mounting hole 21 , the mounting portion 42 in this embodiment is provided with a plurality of elastic clips. Connecting piece 421, the ring-shaped clamping part 211 is provided around the installation hole 21, and the plurality of elastic clamping parts 421 are clamped on the ring-shaped clamping part 211, and can be wound around the ring-shaped clamping part 211 turn. The connection between the installation part 42 and the installation hole 21 is realized by snapping the plurality of elastic clips 421 on the annular clip part 211, and because the plurality of elastic clips 421 can be The ring engaging portion 211 rotates so that the mounting portion 42 can rotate along the mounting hole 21 .

In the embodiment of the present invention, the number of the elastic clips 421 can be set according to the actual use requirements, such as 2, 4 and 6, etc., in order to simplify the structure and reduce the cost, preferably, this embodiment The number of the elastic clips 421 is two, and the two elastic clips 421 are symmetrically arranged on the installation portion 42 .

As shown in FIG. 11 , in order to ensure that the locking hook unit 4 can rotate smoothly along the inner panel 2 of the slide cover, the left and right sides of the locking hook unit 4 in this embodiment are respectively provided with first elastic side wings 43 And the second elastic side wing 44, the tail of the lock hook unit 4 is provided with an elastic tail wing 45, through the setting of the first elastic side wing 43, the second elastic side wing 44 and the elastic tail wing 45, the lock The hook unit 4 can maintain balance during the rotation, prevent the lock hook unit 4 from detaching from the locking mechanism 3 and limit the rotation angle of the lock hook unit 4, so as to prevent the lock hook unit 4 from rotating Rollover occurs during the process, so that the lock hook unit 4 can rotate smoothly along the sliding cover inner plate 2 .

As shown in FIG. 12 to FIG. 14 , in order to reduce the thrust of the user pushing the inner panel 2 of the slide cover, the armrest device with the secondary locking function in this embodiment further includes a spring 5 , and the armrest frame 2 There is an accommodating groove 11 on the top, and a guide rod 12 is arranged on the accommodating groove 11, and the spring 5 is set on the guide rod 12; the bottom of the inner plate 2 of the sliding cover is provided with a sliding part 22 , the sliding cover inner plate 2 is slidably connected to the guide rod 12 through the sliding part 22 , and the sliding part 22 abuts against one end of the spring 5 and compresses the spring 5 . When the locking hook unit 4 is in the primary locking state, the spring 5 is in a compressed state. When the user performs the primary unlocking of the locking hook unit 4, he only needs to push the slide backward slightly. Cover the inner panel 2, and then the restoring force of the spring 5 will continue to push the sliding cover inner panel 2 to slide along the armrest frame 1, so as to realize the first-level unlocking of the lock hook unit 4; When the lock hook unit 4 is unlocked at the second stage, the user only needs to push the inner slide plate 2 slightly backwards, and then use the restoring force of the spring 5 to continue to push the inner slide plate 2 along the The armrest frame 1 slides to realize the secondary unlocking of the locking hook unit 4 . At the same time, since the spring 5 is in a compressed state and has a forward restoring force during the first-level locking and the second-level locking, the inner panel 2 of the sliding cover can be prevented from sliding backward when the vehicle accelerates. . In addition, under the action of the restoring force of the spring 5, the locking hook unit 4 is firmly abutted against the first concave locking portion 3221 or the second concave locking portion 3121, so as to realize The primary locking or secondary locking of the locking hook unit 4 .

In the embodiment of the present invention, it should be noted that, in order to facilitate the processing and molding of the guide rod 12 and reduce costs, preferably, the guide rod 12 and the armrest frame 1 in this embodiment are integrally injection molded. Of course, in the embodiment of the present invention, the guide rod 12 and the armrest frame 1 can also be molded separately and then connected together, as long as the processing and forming of the guide rod 12 is convenient, no further details will be given here. repeat.

As shown in Figures 14 to 16, in order to reduce the vibration of the sliding cover inner panel 2 during sliding along the armrest frame 1, a rack 23 is provided on the bottom of the sliding cover inner panel 2 in this embodiment , The armrest frame 1 is also provided with a damper 6, the damper 6 is provided with a gear 7, and the rack 23 is meshed with the gear 7. Since the damper 6 contains damping oil, the slide inner plate 2 moves evenly during the sliding process along the armrest frame 1, so that sudden acceleration or deceleration does not occur, thereby preventing the lock hook unit 4 from being impacted and fail.

In the embodiment of the present invention, it should be noted that, in order to facilitate the processing of the rack 23 and reduce costs, preferably, the rack 23 in this embodiment is integrally injected with the inner plate 2 of the slide cover forming. Of course, in the embodiment of the present invention, the rack 23 and the inner panel of the sliding cover 2 can also be molded separately and then connected together, as long as the processing and molding of the rack 23 is convenient, it will not be done here. More on that.

As shown in Fig. 12 to Fig. 15, in order to rationalize the structure so that the inner panel 2 of the sliding cover can be slidably connected to the armrest frame 1, the armrest with the secondary locking function in this embodiment The device also includes a rail assembly 8, the armrest frame 1 is provided with a first slope 13, and the inner panel of the sliding cover 2 is provided with a second slope 24, and the second slope 24 is connected to the on the first slope 13. In addition, in order to facilitate the sliding of the sliding cover inner panel 2 along the armrest frame 1, the number of the guide rail assemblies 8 in this embodiment is two, the number of the first slopes 13 is two, and the number of the second slopes 24 is 2, and the two first slopes 13 are symmetrically arranged on both sides of the armrest frame 1, and the two second slopes 24 are symmetrically arranged on both sides of the sliding cover inner plate 2; wherein, One said second slope 24 is slidably connected to one said first slope 13 through one said guide rail assembly 8, and the other said second slope 24 is slidably connected to the other said guide rail assembly 8. on one of the slopes 13.

In addition, in the embodiment of the present invention, it should be noted that the guide rail assembly 8 includes two slide rails, and the two slide rails are slidably connected; wherein, one of the slide rails is connected to the first On the slope 13 , another slide rail is connected to the second slope 24 .

In the embodiment of the present invention, the inclination angles of the first slope 13 and the second slope 24 can be set according to actual use requirements. In order to facilitate the sliding of the locking hook unit 4 along the locking mechanism 3, this embodiment In the example, the inclination angle of the first slope 13 is 30°-60°, and the inclination angle of the second slope 24 is 30°-60°. Preferably, the inclination angles of the first slope 13 and the second slope 24 in this embodiment are both 45°.

As shown in FIG. 14 , in order to prevent the sliding cover inner panel 2 and The armrest frame 1 shown in the example collides, and the end of the armrest frame 1 close to the primary locking structure 31 in this embodiment is provided with a buffer pad 9 . In addition, in the embodiment of the present invention, it should be noted that there are two buffer pads 9, and the two buffer pads 9 are symmetrically arranged at one end of the armrest frame 1 close to the primary locking structure 31 on both sides.

As shown in Figure 1, Figure 14 and Figure 15, in order to rationalize the structure, the armrest device with secondary locking function in this embodiment also includes a rotary lock 10, a hinge 14, a lower baffle 15, a storage box 16 and the sliding cover outer plate 17; the rotary lock is provided with a lock hook 101, and the rotary lock 10 passes through the lock hook 101 and one end of the armrest frame 1, one end of the lower baffle plate 15 and the One end of the storage box 16 is clamped; the lower baffle plate 15 is clamped on the bottom of the armrest frame 1; the hinge 14 is fixedly connected to the bottom of the sliding cover inner panel 2; the storage box The other end of 16 is rotatably connected to the hinge 14; the outer slide plate 17 is sleeved on the inner slide plate 2, and the outer slide plate 17 is formed from the skin, hair The bubble layer and the skeleton of the inner plate of the sliding cover are formed.

As shown in FIG. 1 to FIG. 10 , the working principle of the armrest device with two-stage locking function in this embodiment is as follows: when the first-stage lock is unlocked to the second-stage lock, the lock hook unit 4 moves along the The fourth inclined-plane guide part 3113 and the first limiting guide part 3111 escape from the primary locking structure 31 and enter the The secondary locking structure 32 finally abuts against the first concave locking portion 3221 under the restoring force of the spring 5, so that the armrest device with the secondary locking function is located in the middle armrest state (at this moment, the inner panel of the slide cover 2 protrudes 63mm from the armrest frame 1); The locking part 3221 escapes, and finally escapes from the secondary locking structure 32 and enters the opening structure 34, so that the armrest device with the secondary locking function is in the long armrest state (at this time, the armrest device inside the sliding cover Plate 2 protrudes from the armrest frame 1 by 100mm); during secondary locking, the lock hook unit 2 enters the secondary locking structure 32 along the opening structure 34, and enters the secondary locking structure 32 in the first limit Under the position limit of the position part 3212 and the guidance of the first guide part 3213, it finally abuts against the first recessed locking part 3221 under the action of the restoring force of the spring 5, so that the The armrest device with the secondary locking function is in the middle armrest state; when the secondary locking is unlocked to the primary locking, the lock hook unit 4 enters the The locking channel 33, and then enter the second concave locking portion 3121 along the second limiting guide portion 3112, and abut against the second concave locking portion 3121 under the restoring force of the spring 5 , so that the armrest device with the secondary locking function is in a short armrest state (at this time, the sliding cover inner panel 2 protrudes 0 mm from the armrest frame 1).

To sum up, the present invention provides a handrail device with a secondary locking function, which includes a handrail frame 1, a sliding cover inner panel 2, and the sliding cover inner panel 2 is slidably connected to the armrest frame 1; the armrest frame 1 is provided with The locking mechanism 3 is provided with a locking hook unit 4 on the inner panel 2 of the sliding cover. When the inner panel 2 of the sliding cover slides along the armrest frame 1, the locking hook unit 4 slides along the locking mechanism 3 and rotates along the inner panel 2 of the sliding cover The locking mechanism 3 includes a primary locking structure 31, a secondary locking structure 32 and a locking channel 33 connecting the primary locking structure 31 and the secondary locking structure 32, and the locking channel 33 is close to the secondary locking structure One end of 32 is provided with the first inclined-plane guide portion 331 for guiding the lock hook unit 4 into the secondary locking structure 32, the secondary locking structure 32 is provided with a first limit guide block 321, the first limit guide block One end of 321 close to the locking passage 33 is provided with a second slope guide portion 3211 for guiding the hook unit 4 into the secondary locking structure 32 . The inner panel 2 of the sliding cover slides along the armrest frame 1, driving the locking hook unit 4 to slide along the locking mechanism 3, so that the locking hook unit 4 is unlocked from the primary locking structure 31 of the locking mechanism 3, and passes through the locking channel 33 in turn The first inclined-plane guide part 331 on the top and the second inclined-plane guide part 3211 on the secondary locking structure 32 enter the secondary locking structure 32, and finally lock on the secondary locking structure 32 of the locking mechanism 3, so that The armrest device with the secondary locking function adds an intermediate armrest state between the long armrest state and the short armrest state and locks this state, thereby improving the ergonomics of the armrest device with the secondary locking function , so that it can be adapted to a wider range of people.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and replacements can also be made, these improvements and replacements It should also be regarded as the protection scope of the present invention.

Claims (15)

1. An armrest device with a secondary locking function, characterized in that it comprises an armrest frame and a slide cover inner plate, and the slide cover inner plate is slidably connected to the armrest frame; There is a locking mechanism, and the inner panel of the sliding cover is provided with a locking hook unit. When the inner panel of the sliding cover slides along the armrest frame, the locking hook unit slides along the locking mechanism, and The inner plate of the sliding cover rotates; the locking mechanism includes a primary locking structure, a secondary locking structure, and a locking channel connecting the primary locking structure and the secondary locking structure, and the locking channel One end close to the secondary locking structure is provided with a first slope guide for guiding the lock hook unit into the secondary locking structure, and the secondary locking structure is provided with a first limit guide block, and the end of the first limit guide block close to the locking channel is provided with a second slope guide for guiding the locking hook unit into the secondary locking structure. 2. The handrail device with two-stage locking function according to claim 1, characterized in that, the middle part of the locking channel is provided with a straight guide. 3. The armrest device with secondary locking function according to claim 1, wherein a first limiting portion is provided on the first limiting guide block; A limiting portion restricts the locking hook unit from disengaging from the secondary locking structure. 4. The armrest device with a secondary locking function according to claim 3, wherein the first limiting portion is U-shaped, and the U-shaped opening of the first limiting portion faces away from the One side of the second slope guide is inclined. 5. The armrest device with a secondary locking function as claimed in claim 3 or 4, wherein a first guide portion, a second guide portion and a connecting portion connecting the first position-limiting guide block are also provided on the first limit guide block. The first guide part and the third inclined-plane guide part of the second guide part, the third inclined-plane guide part is inclined to the second guide part, and the first guide part is connected with the first limiting part; The secondary locking structure is also provided with a first heart-shaped locking block, the first heart-shaped locking block is provided with a first recessed locking part, and the first recessed locking part is connected with the third The inclined-plane guide parts are arranged oppositely. 6. The armrest device with secondary locking function as claimed in claim 1, wherein a second limit guide block is provided on the primary lock structure, and a second limit guide block is provided on the second limit guide block. There are a first limit guide part, a second limit guide part and a fourth slope guide part connecting the first limit guide part and the second limit guide part, and the fourth slope guide part faces the The first limit guide part is inclined; the first-level locking structure is also provided with a second heart-shaped lock block, and the second heart-shaped lock block is provided with a second recessed locking part, and the second recess The locking part is arranged opposite to the fourth inclined-plane guide part. 7. The armrest device with secondary locking function as claimed in claim 1, wherein a lock pin is provided on the bottom of the lock hook unit, a lock groove is provided on the lock mechanism, and the lock A needle is slidably connected within the lock slot. 8. The armrest device with secondary locking function as claimed in claim 1, wherein a mounting portion is provided on the top of the lock hook unit, and a mounting hole is provided on the inner plate of the sliding cover, and the The mounting part is rotatably connected to the mounting hole. 9. The armrest device with a secondary locking function as claimed in claim 8, wherein a plurality of elastic clamping parts are provided on the mounting part, and ring-shaped clamping parts are provided around the mounting hole, The plurality of elastic clamping parts are clamped on the annular clamping part and can rotate around the circular clamping part. 10. The armrest device with a secondary locking function as claimed in claim 1 or 8, wherein the left and right sides of the lock hook unit are respectively provided with a first elastic side wing and a second elastic side wing, and the lock The tail of the hook unit is provided with an elastic tail. 11. The armrest device with secondary locking function according to claim 1, characterized in that, the armrest device with secondary locking function further comprises a spring, and the armrest frame is provided with a receiving groove, so that A guide rod is provided on the accommodating groove, and the spring is sleeved on the guide rod; a sliding part is provided on the bottom of the inner plate of the sliding cover, and the inner plate of the sliding cover is slidably connected through the sliding part. connected to the guide rod, and the sliding part abuts against one end of the spring and compresses the spring. 12. The armrest device with secondary locking function as claimed in claim 1, wherein a rack is provided on the bottom of the inner plate of the sliding cover, and a damper is also provided on the armrest frame, and the The damper is provided with a gear, and the rack is meshed with the gear. 13. The armrest device with secondary locking function according to claim 1, characterized in that, the armrest device with secondary locking function further comprises a rail assembly, the armrest frame is provided with a first slope, The inner plate of the sliding cover is provided with a second slope, and the second slope is connected to the first slope through the guide rail assembly. 14. The armrest device with a secondary locking function as claimed in claim 13, wherein the inclination angle of the first slope is 30°-60°, and the slope angle of the second slope is 30°-60°. 60°. 15. The armrest device with a secondary locking function according to claim 1, wherein a buffer pad is provided on the end of the armrest frame close to the primary locking structure.