Unlocking mechanism of armrest small table plate

Abstract

The utility model discloses an unlocking mechanism of an armrest small table board, which comprises a shell, a guide sliding seat, a driving rope, a locking pin, a first locking device and a first unlocking device, the shell is internally provided with a cavity, the cavity is a sliding cavity extending along the length direction of the cavity, one end of the driving rope is arranged on a rolling device in the guide sliding seat, and the other end of the driving rope is arranged on the locking pin. The other end is arranged at the upper part of the sliding cavity; when the guide sliding seat extends into the sliding cavity, the driving rope is in an unfolded state, when the guide sliding seat moves to the upper end of the sliding cavity, the driving rope is wound in the winding device, two locking pins arranged at intervals are arranged on the lower portion of the guide sliding seat, the first locking device is arranged at the bottom of the sliding cavity, and the second locking device is arranged at the bottom of the sliding cavity. The first locking device is used for locking the other locking pin, the first unlocking device is used for unlocking the first locking device, and the winding device works and drives the guide sliding seat to move upwards.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, especially a unlocking mechanism of armrest small table board. BACKGROUND

[0002] With the development of the automobile, the convenience demand of the automobile is also improved, so the automobile support shaft is also born accordingly. Through the setting of the automobile support shaft, it can be convenient for daily use, such as office, entertainment or eating, etc.

[0003] Therefore, how to design the automobile support shaft to be convenient to use and convenient to store when not in use is the key of design.

[0004] For example, Chinese patent application No. 202221575001.5, the support shaft is mainly engaged through the gear of the lifting assembly and the rack on the groove wall of the storage groove, but in actual use, the engagement of the gear and the rack will produce noise, so its damping rises in actual application, and the problem of jamming will also be caused, and the structure of the lifting assembly is relatively complex.

[0005] Further, the unlocking structure needs to exert a large force to realize unlocking when pressing, so it is not convenient for people with small strength to use. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a unlocking mechanism of armrest small table board, which can lock and unlock the guide sliding seat, and realize linear rising, thereby improving the use comfort.

[0007] To achieve the above purpose, the utility model provides a unlocking mechanism of armrest small table board, which comprises:

[0008] The shell is provided with a cavity inside, and the cavity is a sliding cavity extending along the length direction;

[0009] The guide sliding seat;

[0010] The driving rope is provided with a winding device in the guide sliding seat at one end, and the other end is provided in the upper part of the sliding cavity;

[0011] When the guide sliding seat extends into the sliding cavity, the driving rope is in an unfolded state, and when the guide sliding seat moves to the upper end position of the sliding cavity, the driving rope is wound in the winding device;

[0012] The lower part of the guide sliding seat is provided with two spaced locking pins;

[0013] The first locking device is arranged at the bottom position of the sliding cavity, and the first locking device is used for locking the other locking pin;

[0014] The first unlocking device is used to unlock the first locking device, and the winding device works and drives the guide slide base to move upward.

[0015] In the actual design, unlike the existing pop-up structure, the guide slide base is moved more smoothly by the winding device, avoiding the ejection problem of torsion spring structure in the running process, and making the movement more linear.

[0016] In addition, in the actual design, the first locking device is arranged at the bottom of the sliding cavity, and the first unlocking device is arranged at the top end of the shell and drives the first locking device to unlock through the linkage rope, thereby making the unlocking more convenient, playing the role of a lever, making the unlocking more labor-saving and simple, and more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view when the table board is completely unfolded Figure 1 ;

[0018] Figure 2 is a schematic view when the table board is completely unfolded Figure 2 ;

[0019] Figure 3 is a schematic view when the table board is completely unfolded Figure 3 ;

[0020] Figure 4 is a schematic view when the guide slide base is located at the position of the second locking device

[0021] Figure 5 is a schematic view when the guide slide base is located at the position of the first locking device

[0022] Figure 6 is a schematic view of the sliding cavity Figure 1 ;

[0023] Figure 7 is a schematic view of the sliding cavity Figure 2 ;

[0024] Figure 8 is a schematic view of the first locking device

[0025] Figure 9 is a schematic view of the second locking device

[0026] Figure 10 is a schematic view of the second locking device

[0027] Figure 11 is a schematic view of the guide slide base

[0028] Figure 12 is a schematic view of the guide slide base

[0029] Figure 13Supporting shaft perspective view;

[0030] Figure 14 Guide sliding seat sectional view;

[0031] Figure 15 Top rod and crank seat schematic view.

[0032] 1 is a shell, 10 is a sliding cavity,

[0033] 2 is a guide sliding seat, 21 is a vertical shaft, 22 is a supporting shaft, 23 is a first swing shaft,

[0034] 31 is a first plate body, 32 is a second plate body, 33 is a horizontal shaft, 34 is a first hinge,

[0035] 4 is a first locking device, 40 is a first positioning plate, 41 is a first arc-shaped slot, 42 is a first side slot, 43 is a first clamping slot, 44 is a first clamping hook, 45 is a first swing seat, 46 is a first locking seat, 47 is a first guide wall, 48 is a tail part,

[0036] 5 is a second locking device, 50 is a second positioning plate, 51 is a second arc-shaped slot, 52 is a second side slot, 53 is a second clamping slot, 54 is a second clamping hook, 55 is a second swing seat, 56 is a second locking seat, 57 is a second guide wall, 58 is an inclined surface,

[0037] 6 is a first unlocking device, 61 is a button, 62 is a flap, 63 is a linkage rope,

[0038] 7 is a second unlocking device, 70 is a guide sliding hole, 71 is a top post, 72 is a crank seat, 73 is a top spring, 74 is a first pivot slot, 75 is a convex surface,

[0039] 8 is a locking pin, 81 is a first torsional spring, 82 is a second torsional spring, 83 is a third torsional spring, 84 is a fourth torsional spring,

[0040] 9 is a winding device, 90 is a driving rope, 91 is a guide rail, 92 is a sliding block. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] It should be noted that if the embodiments of the utility model have the direction indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial......), the direction indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the direction indication also changes accordingly.

[0043] In addition, if the embodiments of the utility model have the description of "first" or "second" and the like, the description of "first" or "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one feature. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0044] As shown in Figures 1 to 15 An unlocking mechanism of an armrest small table plate, comprising:

[0045] A shell 1, the shell 1 is internally provided with a cavity, the cavity is sliding cavity 10 extending along its length direction;

[0046] A guide sliding seat 2, the guide sliding seat 2 slides along the length direction of sliding cavity 10, the upper portion of the guide sliding seat 2 is provided with a vertical shaft 21, the vertical shaft 21 is arranged along the height direction and can rotate horizontally along the axis, the top end of the vertical shaft 21 is provided with a first swing shaft 23, the first swing shaft 23 is provided with a support shaft 22, the end of the support shaft 22 is provided with a vertically extending horizontal shaft 33, the horizontal shaft 33 is provided with a first plate body 31 rotating horizontally, the second plate body 32 is swingingly installed along the length direction of the first plate body through the first hinge 34;

[0047] A drive rope 90, one end of the drive rope 90 is arranged in the winding device 9 in the guide sliding seat 2, and the other end is arranged in the upper portion of the sliding cavity 10;

[0048] When the guide sliding seat 2 extends into the sliding cavity 10, the drive rope 90 is in the unfolded state, when the guide sliding seat 2 moves to the upper end position of the sliding cavity 10, the drive rope 90 is wound in the winding device 9;

[0049] Locking pins 8, the lower portion of the guide sliding seat 2 is provided with two locking pins 8 arranged at intervals;

[0050] A first locking device 4 is arranged at the bottom of the sliding cavity 10, and is used to lock the other locking pin 8;

[0051] A first unlocking device 6 is used to unlock the first locking device 4, and the winding device 9 works and drives the guide sliding seat 2 to move upward;

[0052] A second locking device 5 is arranged at the top of the sliding cavity 10, and the locking pin 8 is in contact with the second locking device 5 when the winding device 9 stops,

[0053] Pulling the guide sliding seat 2 upward can lock the locking pin 8 with the second locking device 5;

[0054] A second unlocking device 7 is arranged on the vertical shaft and is used to unlock the second locking device 5, and drives the guide sliding seat 2 to slide downward until the first locking device 4 is locked with the locking pin 8.

[0055] In the actual design, unlike the existing pop-up structure, the guide sliding seat 2 is driven by the winding device 9 to move more smoothly, avoiding the ejection problem of torsion spring structure in the running process, and making the movement more linear;

[0056] In addition, in the actual design, the first locking device 4 is arranged at the bottom of the sliding cavity 10, and the first unlocking device 6 is arranged at the top of the shell 1 and drives the first locking device 4 to unlock through the linkage rope 63, thereby making the unlocking more convenient, playing the role of a lever, making the unlocking more labor-saving and simple, and more convenient;

[0057] Further, the first locking device 4 and the second locking device 5 cooperate with the same locking pin 8, thereby realizing the locking in the storage and use, and making the locking structure simpler;

[0058] In addition, the ejecting shaft is arranged between the vertical shaft 21 and the supporting shaft 22, the second unlocking device is driven by the ejecting shaft, thereby realizing the unlocking of the second locking device 5, that is, the second locking device 5 is unlocked while the supporting shaft 22 is stored, effectively improving the use convenience,

[0059] Formally, the second unlocking device is not needed, so that the second unlocking device is realized in the folding process, realizing the storage linkage and improving the use convenience.

[0060] Specifically, the first locking device 4 includes two first positioning plates arranged at intervals, a first swing seat 45 swing-installed between the first positioning plates, and a first locking seat 46,

[0061] The first positioning plate is provided with a first arc-shaped groove 41;

[0062] The first swing seat 45 is provided with a first side slot 42, which can swing between a position same as or tangent to the opening direction of the first arc-shaped slot 41;

[0063] When locking is needed, the locking pin 8 is inserted into the first side slot 42 and swings the first side slot 42 to the position tangent to the first arc-shaped slot 41;

[0064] The first locking seat 46 is used to lock the first side slot 42 of the first swing seat 45 when it is at the position tangent to the opening direction of the first arc-shaped slot 41.

[0065] When the first swing seat 45 is in the unlocked state, the first side slot 42 swings upward and then swings to the position same as the opening of the first arc-shaped slot 41;

[0066] When the human hand exerts pressure downward, the locking pin 8 is first inserted into the first side slot 42 until the locking pin 8 abuts against the bottom wall of the first arc-shaped slot 41, thereby achieving locking,

[0067] At this time, the first locking seat 46 locks the first swing seat 45, thereby achieving double limiting.

[0068] Specifically, the first swing seat 45 extends two oppositely arranged first side arms, which enclose the first side slot 42,

[0069] The first side arm located below is provided with a first clamping slot 43 concavely arranged inward, and the first locking seat 46 is provided with a first clamping hook 44 matched with the first clamping slot 43;

[0070] The first side arm located at the lower end wall of the first clamping slot 43 is provided with a first guide wall 47, which gradually extends inward in an arc shape from the position of the first clamping slot 43.

[0071] Specifically, the first swing seat 45 is provided with a first torsional spring 81 at the position of the rotating shaft, which is used to exert a spring force on the first swing seat 45 to swing it to the position same as the opening direction of the first arc-shaped slot 41;

[0072] The first locking seat 46 is provided with a second torsional spring 82 at the position of the rotating shaft, which is used to exert a spring force on the first swing seat 45 to swing it to the position close to the first arc-shaped slot.

[0073] In actual design, the first swing seat 45 and the first locking seat 46 are both provided with a limiting pin, thereby limiting the predetermined swing angle;

[0074] Therefore, through the first torsional spring 81, the swing of the first swing seat 45 to the tangent position when the locking pin 8 is pressed downward can be achieved,

[0075] When the first locking seat 46 and the first clamping groove 43 and the first clamping hook 44 of the first swing seat 45 are matched with each other, the first torsion spring 81 can realize the locking force;

[0076] Therefore, when actually unlocking, only the elastic force of the second torsion spring 82 needs to be overcome, so that the elastic force of the first swing seat 45 is released, and then the unlocking of the locking pin 8 is realized,

[0077] At this time, the guide sliding seat is driven by the winding device 9 to drive the guide sliding seat to go up and extend.

[0078] Specifically, the first unlocking device 6 includes a button 61 vertically slidingly installed on the top of the shell 1, a flap 62 connected to one end of the button 61, and a linkage rope 63 connected to the other end of the flap 62, and the tail portion is arranged on the rear wall of the first locking seat 46 away from the first clamping hook 44,

[0079] The tail portion is connected to the other end of the linkage rope 63,

[0080] When the button 61 applies pressure, the linkage rope 63 is pulled upward, and the first locking seat 46 is swung backward against the elastic force of the second torsion spring, thereby realizing the unlocking between the first swing seat 45 and the first locking seat 46.

[0081] Specifically, the winding device 9 is a coil spring, and a rotating wheel is arranged outside the coil spring, and the outer wall of the rotating wheel is used for winding the driving rope 90;

[0082] The sliding cavity 10 includes a column cavity and a plate cavity, wherein the vertical shaft 21 and the support shaft 22 extend into the column cavity, and the first plate body 31 and the second plate body 32 extend into the plate cavity after being folded;

[0083] The column cavity and the plate cavity are in the shape of "T", and the guide sliding seat is in the shape of "T";

[0084] Both sides of the sliding cavity 10 are provided with guide rails arranged along the length direction, the guide sliding seat is provided with sliding blocks matched with the guide rails, and the sliding cavity 10 is further provided with a plurality of rollers at the bottom and the top, wherein the rollers can also play the roles of buffering and guiding sliding.

[0085] Specifically, the second locking device 5 is provided with two groups and is arranged at intervals, and the second locking device 5 includes two second positioning plates arranged at intervals, a second swing seat 55 swingingly installed between the second positioning plates, and a second locking seat 56,

[0086] The second positioning plate is provided with a second arc-shaped groove 51, and the opening of the second arc-shaped groove 51 is arranged downward;

[0087] The second swing seat 55 is provided with a second side slot 52, which can swing between a position same as the opening direction of the second arc-shaped slot 51 or a position tangent to the opening direction of the second arc-shaped slot 51;

[0088] When locking is needed, the locking pin 8 is inserted into the second side slot 52 and swings the second side slot 52 to the position tangent to the second arc-shaped slot 51;

[0089] The second locking seat 56 is used to lock the second side slot 52 of the second swing seat 55 when the second side slot 52 is at the position tangent to the opening direction of the second arc-shaped slot 51.

[0090] When the second swing seat 55 is in the unlocked state, the second side slot 52 swings upward, and then swings to the position same as the opening of the second arc-shaped slot 51;

[0091] When the human hand exerts pressure downward, the locking pin 8 is first inserted into the second side slot 52 until the locking pin 8 abuts against the bottom wall of the second arc-shaped slot 51, and then locking is achieved,

[0092] At this time, the second locking seat 56 locks the second swing seat 55, and then double limiting is achieved.

[0093] Specifically, the second swing seat 55 extends two oppositely arranged second side arms, and the two second side arms enclose the second side slot 52,

[0094] The upper second side arm is provided with a second clamping slot 53 concavely arranged inwardly, and the second locking seat 56 is provided with a second clamping hook 54 matched with the second clamping slot 53;

[0095] The second side arm is provided with a second guide wall 57 at the upper end wall of the second clamping slot 53, and the second guide wall 57 gradually extends in an arc shape inwardly from the position of the second clamping slot 53.

[0096] Specifically, the third torsional spring 83 is arranged at the pivot position of the second swing seat 55, and the third torsional spring 83 is used to exert a spring force on the second swing seat 55 to swing to the position same as the opening direction of the second arc-shaped slot 51;

[0097] The fourth torsional spring 84 is arranged at the pivot position of the second locking seat 56, and the fourth torsional spring 84 is used to exert a spring force on the first swing seat 45 to swing to the position close to the first arc-shaped slot.

[0098] In actual design, the second swing seat 55 and the second locking seat 56 are both provided with a limiting pin, and then the predetermined swing angle is limited;

[0099] Therefore, the third torsional spring 83 can realize the swing of the first swing seat 45 to the tangent position when the locking pin 8 is pressed upward,

[0100] When the second locking seat 56 and the second clamping groove 53 and the second clamping hook 54 of the second swing seat 55 are matched with each other, the fourth torsion spring 84 can realize the locking force;

[0101] Therefore, when actually unlocking, only the elastic force of the third torsion spring 83 needs to be overcome, so that the elastic force of the first swing seat 45 is released, and then the unlocking of the locking pin 8 is realized.

[0102] At this time, the guide sliding seat is driven by the winding device 9 to drive the guide sliding seat to move upwards and extend.

[0103] Specifically, the second locking seat 56 extends towards the opposite wall surface and has a second unlocking block, and the upper wall of the second unlocking block is a slope 58.

[0104] The second unlocking device includes a guide sliding hole 70 arranged on the vertical shaft 21 and a top column 71 arranged in the guide sliding hole 70.

[0105] The lower end of the top column 71 is provided with a swing arranged crank seat 72, which extends to the position of the slope 58.

[0106] The top column 71 can slide between the position of upward sliding or the position of driving the crank seat 72 to move towards the slope 58.

[0107] When the top column 71 slides upward, the crank seat 72 does not contact the slope 58, and when the support shaft 22 needs to be folded, the shaft part of the seat plate abuts against the upper end of the top column 71, thereby driving the top column 71 to move downward, thereby realizing the unlocking of the second locking device 5.

[0108] Specifically, the guide sliding seat is provided with a first pivot slot, the vertical shaft 21 is pivotally installed in the first pivot slot 74, a top spring 73 is arranged between the guide sliding hole 70 and the top column 71, and the top spring 73 is used to apply an upward elastic force to the vertical shaft 21 and the top column 71.

[0109] The vertical shaft can be rotated according to actual needs,

[0110] When the vertical shaft 21 swings, the crank seat 72 swings to limit the swing amplitude of the vertical shaft 21, that is, the crank seat 72 plays a role of unlocking and also plays a role of unlocking the second locking device 5,

[0111] The guide sliding hole 70 and the top column 71 are both non-circular, when the support shaft 22 corresponds to the sliding cavity 10, the crank seat 72 is located between the two slopes 58, and the arrangement of the slope 58 also plays a role of avoiding.

[0112] Specifically, the top of the vertical shaft 21 is provided with two spaced apart pivot parts, the support shaft 22 is pivotally installed between the two pivot parts, and the rear end of the support shaft 22 is provided with a convex surface 75.

[0113] When the vertical shaft 21 and the support shaft 22 are in the same vertical direction, i.e. need to be folded, the support shaft 22 is vertically arranged, the convex surface 75 abuts against the upper end of the top column 71, and forces the crank base 72 to go down.

[0114] In the actual folding process, the sliding cavity 10 includes a column cavity and a plate cavity, wherein the vertical shaft 21 and the support shaft 22 extend into the column cavity, and the first plate body 31 and the second plate body 32 extend into the plate cavity after being folded, thereby realizing that more devices are accommodated in the smallest volume.

[0115] Compared with the existing structure, the same locking pin 8 structure is adopted, and the first locking device 4 and the first unlocking device 6 are respectively located at the bottom and the top, so that the locking is more stable, and the unlocking is more convenient.

[0116] When the guide sliding seat needs to be locked in the second locking device 5, the locking pin 8 abuts against the wall surface of the second swing seat 55 and is not clamped, so that the locking is realized in the process of twice manual pulling.

[0117] When the second locking seat 56 needs to be unlocked, the vertical arrangement of the support shaft 22 realizes the downward movement of the crank base 72, thereby realizing the swing of the second locking seat 56, and the second swing seat 55 is unlocked under the elastic force of the third torsional spring 83, thereby continuing to push to realize the downward movement of the guide sliding seat, and the structure is simple and the linkage is more convenient.

[0118] The vertical shaft 21, the support shaft 22, the first plate body 31 and the second plate body 32 are provided with damping at the rotating position, thereby providing predetermined limiting. Of course, predetermined stoppers will also be arranged in the specific rotating limiting, thereby realizing positioning and limiting.

[0119] The linkage rope realizes stable sliding through the hollow pipe.

[0120] The above only describes preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. An unlocking mechanism for a table board of an armrest, characterized by, The application relates to a handrail small table board unlocking mechanism. The handrail small table board unlocking mechanism comprises a shell, a sliding guide base, a driving rope and a locking pin. One end of the driving rope is arranged in a winding device in the sliding guide base, and the other end is arranged in the upper part of the sliding cavity. When the sliding guide base extends into the sliding cavity, the driving rope is in an unfolded state. When the sliding guide base moves to the upper end position of the sliding cavity, the driving rope is wound in the winding device. The lower part of the sliding guide base is provided with two locking pins arranged at intervals. A first locking device is arranged at the bottom of the sliding cavity, and the first locking device is used for locking the other locking pin. A first unlocking device is used for unlocking the first locking device.

2. The release mechanism for a table armrest as defined in claim 1, wherein: The first locking device comprises two first positioning plates arranged at intervals, a first swing base swingingly arranged between the first positioning plates and a first locking seat. The first positioning plate is provided with a first arc-shaped groove. The first swing base is provided with a first side groove which can swing between a position same as the opening direction of the first arc-shaped groove or a position tangent to the opening direction of the first arc-shaped groove. When locking is needed, the locking pin is clamped into the first side groove and makes the first side groove swing to the position tangent to the first arc-shaped groove. The first locking seat is used for locking the first side groove of the first swing base when the first side groove is tangent to the opening direction of the first arc-shaped groove.

3. The release mechanism for a table armrest as defined in claim 2 wherein: The first swing base extends two first side arms arranged oppositely, and the first side arms enclose the first side groove. The first side arm located at the lower part is provided with a first clamping groove concaved inwardly, and the first locking seat is provided with a first clamping hook matched with the first clamping groove. The first side arm located at the lower end wall of the first clamping groove is provided with a first guide wall which gradually extends in an arc shape inwardly from the position of the first clamping groove.

4. The handrail small table board unlocking mechanism according to claim 3, wherein: A first torsional spring is arranged at the pivot position of the first swing base, and the first torsional spring is used for applying a swing force to the first swing base to the position same as the opening direction of the first arc-shaped groove. A second torsional spring is arranged at the pivot position of the first locking seat, and the second torsional spring is used for applying a swing force to the first swing base to the position close to the first arc-shaped groove.

5. The release mechanism for a table arm as defined in claim 3 wherein: The first unlocking device comprises a button vertically slidably arranged at the top of the shell, a flap connected with one end of the button and a linkage rope connected with the other end of the flap. The rear wall of the first locking seat away from the first clamping hook is provided with a tail part. The tail part is connected with the other end of the linkage rope.

6. The release mechanism for a table arm as defined in claim 1 wherein: When the button applies pressure, the linkage rope is pulled upward, and the first locking seat swings backward against the elastic force of the second torsional spring.

7. The release mechanism for a table armrest as defined in claim 1 wherein: The winding device is a winding spring and a rotating wheel arranged outside the winding spring.

8. The release mechanism for a table arm as defined in claim 7 wherein: The sliding cavity comprises a column cavity and a plate cavity. The column cavity and the plate cavity are in a "T" shape, and the sliding guide base is also in a "T" shape.

9. The release mechanism for a table arm as defined in claim 1 wherein: Two sides of the sliding cavity are provided with guide rails arranged along the length direction, the guide sliding seat is provided with sliding blocks matched with the guide rails, and the sliding cavity is further provided with a plurality of rollers at the bottom and the top.

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