CN210630915U - Multifunctional armrest - Google Patents

Abstract

The utility model relates to a multifunctional handrail, which comprises a supporting seat, wherein a handrail rotating supporting plate is arranged at the upper end of the supporting seat, a rotating control switch with a clamping block is buckled on the bottom surface of the supporting seat, and the rotating control switch and the handrail rotating supporting plate are circumferentially fixed; a circular groove is formed in the upper end face of the supporting seat, a positioning column with a screw hole is arranged at the center of the groove in an upward protruding mode, a rotating sleeve is arranged on the bottom face of the handrail rotating supporting plate in a protruding mode, and the rotating sleeve is sleeved on the positioning column; the groove is provided with an inner ring and an outer ring, the inner ring protrudes upwards out of the groove bottom of the groove, a gap is reserved between the inner ring and the outer ring, and the inner ring is provided with a plurality of bayonets; the rotating control switch keeps the fixture block engaged with the bayonet under the action of an elastic piece; when the rotation control switch is triggered by external force, the rotation control switch overcomes the elasticity of the elastic piece and moves along the bottom surface of the handrail rotation supporting plate, so that the clamping block is separated from the bayonet and enters an inner ring area or a gap between an inner ring and an outer ring, and the handrail rotation supporting plate can rotate freely; can rotate 360 degrees and stay at the position desired by the user.

Description

Multifunctional armrest

Technical Field

The utility model relates to a thing to sit on field, in particular to a multi-functional handrail for on thing to sit on.

Background

The conventional seat armrest is generally fixed, that is, the installation position of the conventional seat armrest is fixed, and the conventional seat armrest cannot be changed according to the requirement of a user.

Different users may have different requirements for the position of the armrest when sitting in different positions on the seat, for example, a user sitting in a forward position of the seat may require the position of the armrest to be further forward, while a user sitting in a rearward position of the seat may require the position of the armrest to be also rearward; for example, a user of small stature may need to rotate the armrest position to an inward position, while a user of larger stature may need to rotate the armrest position to an outward position to accommodate their respective most comfortable stature; therefore, the prior seat armrests cannot meet the requirements, and some manufacturers respectively develop armrests with rotation adjustment;

as patent numbers: CN201820989361.7 relates to an armrest capable of rotating and lifting with a seat, as also disclosed in patent nos.: the rotary armrest for the seat related to CN201420464991.4 is further disclosed in patent nos: CN201020116122.4, and patent numbers are: CN200820202671.6 relates to an armrest for a chair, etc.

The common characteristics of the handrails are that the handrails can only rotate within a certain small range, and cannot rotate 360 degrees, so that the handrails have certain limitations and cannot meet the requirements of people on the rotation of the handrails at any angle along the circumferential direction.

Now, a multifunctional armrest which can be adjusted in position and rotated by 360 degrees is specially conceived, and the problem to be solved is that users with different sizes or different requirements can be met.

Disclosure of Invention

The utility model overcomes the defects in the prior art, provides a multifunctional handrail, and solves the problems; specifically, the method comprises the following steps: the armrest is in rotating fit with the supporting seat through the armrest rotating supporting plate to realize 360-degree rotation of the armrest, and the armrest can stay at a position desired by a user through the rotating control switch; simultaneously, the rotation control switch lock rotates the backup pad bottom surface at the handrail on, rotates the backup pad with the handrail almost and combines together, and disguise is good, and easily operation, as long as press the splenium during operation to synchronous turn-knob can, when convenient operation, satisfied the rotation demand of user to the handrail position.

The technical scheme of the utility model is realized like this:

a multifunctional handrail comprises a supporting seat, wherein a handrail panel is arranged at the upper end of the supporting seat and comprises a handrail rotating supporting plate, a rotating control switch is buckled on the bottom surface of the handrail rotating supporting plate and is provided with a clamping block, and the rotating control switch and the handrail rotating supporting plate are kept relatively fixed along the circumferential direction; a circular groove is formed in the upper end face of the front part of the supporting seat, a positioning column with a screw hole is arranged at the center of the groove in an upward protruding mode, a rotating sleeve with a middle hole is arranged on the bottom face of the handrail rotating supporting plate in a downward protruding mode, and the handrail rotating supporting plate is connected with the supporting seat in a rotating mode; the groove is provided with an inner ring and an outer ring, the inner ring protrudes upwards out of the bottom of the groove, a gap is reserved between the inner ring and the outer ring, and the inner ring is provided with a plurality of bayonets; the rotating control switch keeps the fixture block engaged with the bayonet under the action of an elastic piece; when the rotation control switch is triggered by external force, the rotation control switch overcomes the elasticity of the elastic piece and moves along the bottom surface of the handrail rotation supporting plate, the clamping block is separated from the bayonet and enters the inner ring area or the gap between the inner ring and the outer ring, and the handrail rotation supporting plate can rotate freely.

The utility model discloses a multifunctional handrail, which is matched with a supporting seat in a rotating way through a handrail rotating supporting plate, under the natural state, according to the position of the handrail rotating supporting plate, a clamping block on a rotating control switch is clamped with a bayonet under the action of an elastic part, or is positioned outside the bayonet and keeps the situation of offsetting with an inner ring; when a pressing part of the rotation control switch is pressed by a hand, the clamping block moves and is separated from the bayonet, at the moment, the handrail rotation supporting plate and the handrail panel can rotate around the handrail rotation supporting plate under the twisting action of the hand and can rotate 360 degrees to stay at a position desired by a user; simultaneously, the rotation control switch lock rotates the backup pad bottom surface at the handrail on, rotates the backup pad with the handrail almost and fuses as an organic whole, and disguise is good, and easily operation, as long as press the splenium during operation to synchronous turn-knob can, convenient operation.

Preferably, a positioning buckle is arranged in the middle hole, the hole surface of the middle hole is a conical surface with a large upper part and a small lower part, the shape of the peripheral surface of the positioning buckle is matched with the conical surface, the positioning buckle is provided with an inner hole, the positioning buckle is screwed in the screw hole of the positioning column through a screw after being sleeved on the positioning column by the inner hole, and the screw head is abutted to the upper end of the positioning buckle. By adopting the mode, the peripheral surface of the positioning buckle is an inclined surface, so that the handrail rotating supporting plate is pressed by the positioning buckle and cannot be separated, and the axial direction of the positioning buckle is limited by the screw head so that the positioning buckle cannot be separated from the positioning column; and the positioning buckle is circumferentially fixed with the positioning column, so that the handrail rotating supporting plate can rotate more smoothly around the positioning buckle.

Preferably, the peripheral surface of the positioning column is provided with at least one limiting notch, the positioning buckle is correspondingly provided with at least one latch, and the latch is inserted into the limiting notch. The positioning buckle is inserted into a limiting notch matched with the clamping tooth in shape and size to realize circumferential direction positioning, so that the positioning buckle plays a role in rotating and supporting.

Preferably, the rotation control switch comprises a sleeve ring, two ends of the periphery of the sleeve ring along the diameter direction of the sleeve ring are respectively provided with a pressing part and a pressing part, the size of the sleeve ring along the movement direction of the rotation control switch is larger than that of the rotation sleeve, and the sleeve ring is sleeved outside the rotation sleeve; the elastic part is a pressure spring; the bottom surface of the handrail rotating support plate is provided with a buckling groove matched with the rotating control switch, the rotating control switch is arranged in the buckling groove, the bottom surface of the handrail rotating support plate is also provided with an elastic piece accommodating groove communicated with the buckling groove, the elastic piece is limited in the elastic piece accommodating groove and is abutted against a pressing part of the rotating control switch, and the clamping block is arranged on the pressing part. Under the free state of the elastic piece, the force is applied to the pressing part under the action of the elastic force, so that the pressing part of the rotation control switch is arranged outside, at the moment, the clamping block is positioned in the clamping opening at the corresponding position, and the rotation control switch and the handrail rotation supporting plate are fixed in the circumferential direction, so that the handrail rotation supporting plate is limited and cannot rotate; when the pressing part is pressed by hand, the elastic force of the elastic part is overcome to push the rotation control switch inwards, so that the clamping block is staggered with the bayonet, the clamping block is not limited by the bayonet any more, and the armrest rotation supporting plate can rotate to a position desired by a user.

Preferably, the inner surface of the pressing part opposite to the bottom surface of the handrail rotating support plate is provided with a notch groove, one end of the notch groove opposite to the elastic piece is opened, and one part of the elastic piece is positioned in the notch groove; the fixture block is arranged on the outer surface of the pressing part. The arrangement of the notch groove has a certain limiting effect on the elastic piece, and the elastic piece is placed to be separated from the pressing part; the clamping block moves synchronously along with the pressing part and is clamped and locked or separated from the bayonet to unlock.

Preferably, a clamping block is also arranged on the surface of the rotation control switch facing the groove; correspondingly, two groups of bayonets are symmetrically arranged on the inner ring, each group of bayonets is 2-3 in interval arrangement, and each clamping block is respectively matched with one group of bayonets. And the double clamping blocks are adopted, so that the positioning and locking are more reliable.

Preferably, a sliding seat and a handrail body are arranged above the handrail rotating supporting plate, and the sliding seat and the handrail body are assembled together; the upper end of the handrail rotating supporting plate is convexly provided with at least two guide pillars which are arranged at intervals, the sliding seat is a hollow shell with an open upper end, a straight hole is formed in a bottom plate of the sliding seat, the guide pillars are upwards inserted into the straight hole, the sliding seat slides back and forth along the guide pillars, and an adjusting device for adjusting the degree of tightness of sliding is further arranged in the sliding seat. The armrest body is a support body of the human arm, the armrest body and the sliding seat are assembled into a whole and can slide synchronously, and the outer diameter of the guide pillar is equal to the width of the straight hole, so that the sliding seat only slides back and forth along the straight hole; the adjusting device adjusts the degree of tightness of sliding, namely adjusts the degree of compression of the sliding seat and the handrail rotating support plate, and the degree of compression determines the magnitude of sliding friction force, so that the magnitude of force application of a human body is different.

Preferably, the adjusting device comprises an adjusting screw, a pressing piece, a spring and a pressing block matched with the guide pillar in a sleeved mode, the lower end of the pressing block abuts against the bottom plate of the sliding seat, the spring is sleeved outside the guide pillar, the upper end and the lower end of the spring abut against the pressing piece and the pressing block respectively, a mounting hole is formed in the center of the pressing piece, a threaded hole is formed in the upper end of the guide pillar, and the pressing piece is fixed to the upper end of the guide pillar through the adjusting screw. The spring has elasticity, adjusts the upper and lower position of preforming and then the deformation degree of adjusting spring through adjusting screw, and the elasticity of spring has decided the briquetting to the extrusion degree of sliding seat, has just also been equivalent to the size of adjusting sliding friction power, adapts to different crowds to the needs of different slip damping sizes.

Preferably, the upper end of the handrail rotating support plate is upwards convexly provided with two guide posts which are arranged at intervals; the pressing block is a strip-shaped sliding rail which is connected with two guide posts simultaneously. The briquetting is an holistic rectangular shape slide rail, has guaranteed the wholeness for the briquetting can not break away from the guide pillar easily.

Preferably, two symmetrical convex ribs are arranged on two sides of the straight hole on the bottom plate of the sliding seat, a sliding groove is formed between the two convex ribs, and the pressing block is positioned in the sliding groove. When the sliding block is specifically applied, the pressing block is not moved, and the sliding seat is in sliding fit with the pressing block through the sliding groove, so that the sliding path is more clear, and the left-right shaking is avoided.

Preferably, a circle of accommodating groove is formed in the inner side of the periphery of the upper end of the handrail rotating supporting plate, a handrail sliding supporting ring matched with the accommodating groove is arranged in the accommodating groove, the handrail sliding supporting ring protrudes out of the upper end face of the handrail rotating supporting plate, and the handrail sliding supporting ring is in contact fit with the bottom face of the sliding seat bottom plate. Therefore, the sliding seat bottom plate can be prevented from directly contacting with the handrail rotating supporting plate, hooking and clamping are avoided, a protection effect is achieved, and meanwhile, friction force is concentrated between the handrail sliding supporting ring and the sliding seat bottom plate, so that sliding is smooth.

Preferably, the handrail sliding support ring is made of POM material. The POM material has excellent elasticity and mechanical property, and can improve the smooth degree of sliding, reduce noise and improve hand feeling.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

the utility model discloses a multifunctional armrest, this handrail pass through the handrail and rotate backup pad and supporting seat normal running fit, under natural state, rotate the position that the backup pad located according to the handrail, rotate the fixture block on the control switch under the elastic component effect with the bayonet socket block, or be in the bayonet socket outside and keep the situation that offsets with the inner circle.

When a pressing part of the rotation control switch is pressed by a hand, the clamping block moves, and the clamping block is separated from the bayonet, at the moment, the handrail rotation supporting plate and the handrail panel can rotate around the handrail rotation supporting plate under the twisting action of the hand and can rotate 360 degrees, while the handrail in the prior art can only rotate within a certain angle generally and cannot meet the requirement of rotating 360 degrees; or it can be implemented but with a more complex structure.

In addition, the armrest can stay at the position desired by the user by rotating the control switch after rotating to the position comfortable for the user; compared with the handrail in the prior art, the handrail has the advantages of exquisite structural design and convenience in operation.

Drawings

Fig. 1 is an exploded schematic view of a three-dimensional structure of a multifunctional handrail in an embodiment of the present invention;

fig. 2 is a partial schematic view of a three-dimensional structure of a groove in an embodiment of the present invention;

fig. 3 is a partial schematic view of a three-dimensional structure of a positioning buckle according to an embodiment of the present invention;

fig. 4 is a partial schematic view of a three-dimensional structure of the positioning buckle according to the embodiment of the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the armrest rotating support plate and the rotating control switch after being separated according to the embodiment of the present invention;

fig. 6 is a schematic view of the three-dimensional structure of the embodiment of the present invention, in which the armrest rotating support plate is combined with the rotating control switch and the pressing portion is compressed to the shortest length by the hand applying force to the pressing portion;

fig. 7 is a schematic view of the three-dimensional structure of the pressing portion and the pressing spring in a free state in the embodiment of the present invention, wherein the armrest rotating support plate is combined with the rotating control switch, and the hand does not apply force to the pressing portion;

FIG. 8 is an enlarged view of portion a of FIG. 7;

fig. 9 is a schematic perspective view of a rotation control switch according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of a second embodiment of the present invention;

fig. 11 is a schematic perspective view illustrating a three-dimensional structure of the rotation control switch according to the embodiment of the present invention when the fixture block is engaged with the bayonet;

FIG. 12 is an enlarged view of portion b of FIG. 11;

fig. 13 is a schematic perspective view of the fixture block of the rotation control switch of the present invention engaging with the bayonet and the positioning buckle being fixed in the positioning post according to the embodiment of the present invention;

fig. 14 is a schematic perspective view of the armrest rotating support plate and the support seat combined together and the positioning buckle fixed in the positioning column according to the embodiment of the present invention;

fig. 15 is a schematic perspective view of the detachable armrest sliding support ring, armrest rotating support plate and support seat according to the embodiment of the present invention;

fig. 16 is a schematic perspective view of the combined armrest sliding support ring, armrest rotating support plate and support seat according to the embodiment of the present invention;

fig. 17 is a schematic perspective view of the sliding seat and the supporting seat combined together and separated from the adjusting device according to the embodiment of the present invention;

FIG. 18 is a first schematic perspective view of the slide seat and the support seat of the present invention when they are assembled with each other and disassembled from the armrest body;

fig. 19 is a schematic perspective view of the second embodiment of the present invention, showing a three-dimensional structure of the sliding seat and the supporting seat combined together and separated from the armrest body.

The figures are numbered: a support base 1; a groove 2; an inner ring 3; an outer ring 4; a bayonet 5; a positioning column 6; a limiting notch 7; an armrest panel 8; the armrest rotation support plate 9; a central bore 10; a rotating sleeve 11; a positioning buckle 12; an inner bore 13; a latch 14; screws a 15; a screw head 16; a rotation control switch 17; a latch 18; a, a fixture block 18 a; b, a latch 18B; a pressure spring 19; a collar 20; a pressing portion 21; a pressing portion 22; a catching groove 23; an elastic-member accommodation groove 24; a convex column 25; a notch groove 26; a slide seat 27; an armrest body 28; a guide post 29; a straight hole 30; the convex rib 31; an adjusting screw 32; tabletting 33; a spring 34; a briquette 35; a chute 36; the mounting hole 37; a receiving groove 38; a handrail sliding support ring 39; a base plate 40; a void 41; screws B42; a screw hole 43; a threaded bore 44.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Under the premise that the multifunctional handrail of the utility model is normally used, the handrail is kept horizontal, and the axial direction (central axis) is vertical; "circumferential direction" refers to the horizontal circumferential direction.

The specific implementation manner of the utility model is as follows:

example (b): as shown in fig. 1-16, the utility model provides a multifunctional handrail, which comprises a supporting seat 1, wherein a circular groove 2 is arranged on the upper end surface of the front part of the supporting seat 1, the groove 2 is provided with an inner ring 3 and an outer ring 4, the inner ring 3 protrudes upwards from the bottom of the groove 2, a gap 41 is reserved between the inner ring 3 and the outer ring 4, two sets of bayonets 5 are arranged on the inner ring 3, the bayonets 5 can be arranged in multiple sets according to the requirement of a user on the rotation angle of the handrail, and two sets of bayonets 5 are specifically arranged in the embodiment; a positioning column 6 with a screw hole 43 is convexly arranged upwards at the center of the groove 2, and two limiting notches 7 are arranged on the outer peripheral surface of the positioning column 6.

The upper end of the supporting seat 1 is provided with a handrail panel 8; the handrail panel 8 comprises a handrail rotating support plate 9, a rotating sleeve 11 with a middle hole 10 is convexly arranged on the bottom surface of the handrail rotating support plate 9 downwards, the hole surface of the middle hole 10 is a conical surface with a large upper part and a small lower part, and the rotating sleeve 11 is sleeved on the positioning column 6 and is in rotating connection with the positioning column. Specifically, the 360-degree rotation of the multifunctional armrest in this embodiment is realized by the 360-degree rotation of the armrest rotating support plate 9 on the positioning column 6.

Further, when the handrail rotation support plate 9 rotates, in order to fix the handrail rotation support plate 9 and the support base 1 in the axial direction, the both are prevented from being disengaged in the axial direction; in the utility model, a positioning buckle 12 for limiting the handrail rotating support plate 9 and the support seat 1 in the axial direction is arranged in the middle hole 10, as shown in fig. 3, 4, 14 and 16, the shape of the outer peripheral surface of the positioning buckle 12 is matched with the conical surface of the middle hole 10; the positioning buckle 12 has an inner hole 13 at the center for passing through the screw a15, and two corresponding latches 14 with the shape and size matching with the limit notch 7 are provided on the positioning buckle 12.

The mounting mode of the positioning buckle 12, the handrail rotating support plate 9 and the support seat 1 is as follows: firstly, the positioning buckle 12 is placed in the middle hole 10, then the latch 14 is inserted into the limit notch 7 of the positioning column 6, and then the screw a15 is screwed into the screw hole 43 of the positioning column 6 after passing through the inner hole 13 of the positioning buckle 12, and finally the screw head 16 is abutted against the upper end of the positioning buckle 12.

The arrangement is that the positioning buckle 12 is limited in the axial direction by the screw head 16, so that the positioning buckle 12 can not be separated from the positioning column 6, and the handrail rotating support plate 9 and the support seat 1 can be positioned in the axial direction; and when the handrail rotation support plate 9 rotates, the positioning buckle 12 is equivalent to a 'rotating shaft', and the handrail rotation support plate 9 rotates more smoothly around the positioning buckle 12 because the positioning buckle 12 is circumferentially fixed with the positioning column 6.

Further, in order to control the switch of the armrest panel 8 during rotation, the present invention further provides a rotation control switch 17, as shown in fig. 6-9, 10, and 11-13, specifically: a rotation control switch 17 which is relatively fixed with the armrest rotation support plate 9 along the circumferential direction is buckled on the bottom surface of the armrest rotation support plate 9, a clamping block 18 is arranged on the rotation control switch 17, the rotation control switch 17 enables the clamping block 18 to keep the trend of being jointed with the bayonet 5 on the inner ring 3 under the action of an elastic element, specifically a pressure spring 19 in the embodiment, the clamping block 18 is jointed with the bayonet 5 under the condition that hands do not press, the position of the armrest rotation support plate 9 is fixed, the armrest panel 8 can not rotate any more, and therefore the armrest panel can stay at the position desired by a user.

Specifically, the rotation control switch 17 includes a collar 20, two ends of the outer circumference of the collar 20 along the diameter direction thereof are respectively provided with a pressing portion 21 and a pressing portion 22, the size of the collar 20 along the moving direction of the rotation control switch 17 is larger than that of the rotation sleeve 11, and the collar 20 is sleeved outside the rotation sleeve 11; the number of the fixture blocks 18 is specifically two, namely a fixture block 18a and a fixture block 18B, and the fixture block 18a is arranged on the outer surface of the pressing part 22; the B latch 18 is provided on the face of the rotation control switch 17 facing the recess 2; correspondingly, two sets of bayonets 5 symmetrically arranged on the inner ring 3 are matched with A, B fixture blocks 18a and 18b to control the rotation or locking of the armrest rotating support plate 9.

A buckle groove 23 matched with the rotation control switch 17 is arranged on the bottom surface of the handrail rotation supporting plate 9, the rotation control switch 17 is arranged in the buckle groove 23, an elastic piece accommodating groove 24 communicated with the buckle groove 23 is also arranged on the bottom surface of the handrail rotation supporting plate 9, the pressure spring 19 is limited in the elastic piece accommodating groove 24, a fine convex column 25 with the diameter smaller than that of the pressure spring 19 is arranged on the inner side surface of the elastic piece accommodating groove 24, a notch groove 26 is arranged on the inner surface of the pressing part 22 opposite to the bottom surface of the handrail rotation supporting plate 9, and one end of the notch groove 26 opposite to the pressure spring 19 is open; one end of the pressure spring 19 is firstly sleeved on the convex column 25 and then is abutted against the inner surface of the elastic piece accommodating groove 24, the other end of the pressure spring 19 is abutted against the abutting part 22 of the rotation control switch 17, and a part of the pressure spring 19 is positioned in the notch groove 26.

In the use process of the multifunctional armrest in the embodiment, the specific operation is as follows:

when the user does not need to adjust the angle of the armrest panel 8, that is, the armrest needs to be stopped at the position desired by the user, the hand does not press the rotation control switch 17, at this time, the pressure spring 19 is in a free state, in this state, the pressure spring 19 extrudes the elastic member accommodating groove 24 and the pressing portion 22 which apply force to two sides respectively, because the pressing portion 22 is under the action of the elastic force of the pressure spring 19, the pressing portion 21 of the rotation control switch 17 is positioned outwards, at this time, the A, B clamping blocks 18a and 18b are positioned in the bayonet 5 at the corresponding positions, the armrest rotation support plate 9 is limited, and the armrest panel 8 is stopped at the desired position.

When a user needs to adjust the angle of the armrest panel 8, the user presses the pressing part 21 by hand, the rotation control switch 17 is pushed inwards by overcoming the elasticity of the pressure spring 19, so that the A, B clamping blocks 18a and 18b and the two bayonets 5 are staggered and enter the inner ring 3 area or the gap 41 between the inner ring 3 and the outer ring 4, the A, B clamping blocks 18a and 18b are not limited by the bayonets 5, at the moment, the armrest rotation support plate 9 can drive the armrest panel 8 to rotate 360 degrees to a position desired by the user, then the pressing part 21 is loosened, and the armrest rotation support plate 9 does not rotate and stays at the position.

In addition, in order to enable the multifunctional armrest to slide in the front-back direction, the front-back adjustment of the position of the multifunctional armrest is realized; as shown in fig. 1 and 17-19, the multi-functional armrest of the present embodiment is provided with a sliding seat 27 and an armrest body 28 assembled with the sliding seat 27 by a screw B42 above the armrest rotating support plate 9, wherein the armrest body 28 is a support for the arm of a human body, and the armrest body 28 and the sliding seat 27 are assembled as a whole and can slide synchronously;

specifically, two guide posts 29 arranged at intervals are arranged at the upper end of the handrail rotating support plate 9 in an upward protruding manner, the sliding seat 27 is a hollow shell with an open upper end, a linear hole 30 with the width equal to the outer diameter of the guide post 29 is formed in a bottom plate 40 of the sliding seat 27, the two guide posts 29 are upwards inserted into the linear hole 30, and the sliding seat 27 slides back and forth along the guide posts 29 to realize the adjustment of the handrail position; two symmetrical convex ribs 31 are arranged on two sides of the straight hole 30, a sliding groove 36 is formed between the two convex ribs 31, the width of the straight hole 30 is smaller than that of the sliding groove 36, and the straight hole 30 is positioned in the middle of the sliding groove 36 in the width direction.

An adjusting device for adjusting the degree of tightness of sliding is also arranged in the sliding seat 27, and the adjusting device adjusts the degree of tightness of sliding of the sliding seat 27; specifically speaking: the adjusting device from top to bottom comprises an adjusting screw 32, a pressing sheet 33, a spring 34 and a pressing block 35 in sleeve fit with the guide posts 29, wherein the pressing block 35 is a long strip-shaped sliding rail and is simultaneously connected with the two guide posts 29, and the pressing block 35 is positioned in a sliding groove 36; the lower end of the pressing block 35 is abutted against the bottom plate 40 of the sliding seat 27, the spring 34 is sleeved outside the guide post 29, the upper end and the lower end of the spring 34 are respectively abutted against the pressing sheet 33 and the pressing block 35, the center of the pressing sheet 33 is provided with a mounting hole 37, the upper end of the guide post 29 is provided with a threaded hole 44, the adjusting screw 32 penetrates through the mounting hole 37 and then is screwed in the threaded hole 44 of the guide post 29, and the pressing sheet 33 is fixed at the upper end of the guide post.

Because the spring 34 has elasticity, the upper and lower position of the pressing sheet 33 is adjusted through the adjusting screw 32 so as to adjust the deformation degree of the spring 34, the elasticity of the spring 34 determines the extrusion degree of the pressing block 35 to the sliding seat 27, which is equivalent to adjusting the sliding friction force, so that the force application of the human body is different, and the requirements of different people on different sliding damping forces are met.

In addition, as shown in fig. 15 and 16, a circle of accommodating groove 38 is arranged inside the periphery of the upper end of the handrail rotating supporting plate 9, a handrail sliding supporting ring 39 made of POM is arranged in the accommodating groove 38, the handrail sliding supporting ring 39 protrudes out of the upper end surface of the handrail rotating supporting plate 9, and the handrail sliding supporting ring 39 is in contact fit with the bottom surface of a bottom plate 40 of the sliding seat 27; therefore, the bottom plate 40 of the sliding seat 27 is prevented from directly contacting with the handrail rotating support plate 9, hooking and clamping are avoided, a protection effect is achieved, meanwhile, friction force is concentrated between the handrail sliding support ring 39 and the bottom plate 40 of the sliding seat 27, sliding is smooth, noise is reduced, and hand feeling is improved.

Claims (10)

1. A multifunctional armrest is characterized in that: the handrail rotating device comprises a supporting seat, wherein a handrail panel is arranged at the upper end of the supporting seat and comprises a handrail rotating supporting plate, a rotating control switch is buckled on the bottom surface of the handrail rotating supporting plate, a clamping block is arranged on the rotating control switch, and the rotating control switch and the handrail rotating supporting plate are kept relatively fixed along the circumferential direction; a circular groove is formed in the upper end face of the front part of the supporting seat, a positioning column with a screw hole is arranged at the center of the groove in an upward protruding mode, a rotating sleeve with a middle hole is arranged on the bottom face of the handrail rotating supporting plate in a downward protruding mode, and the handrail rotating supporting plate is connected with the supporting seat in a rotating mode; the groove is provided with an inner ring and an outer ring, the inner ring protrudes upwards out of the bottom of the groove, a gap is reserved between the inner ring and the outer ring, and the inner ring is provided with a plurality of bayonets; the rotating control switch keeps the fixture block engaged with the bayonet under the action of an elastic piece; when the rotation control switch is triggered by external force, the rotation control switch overcomes the elasticity of the elastic piece and moves along the bottom surface of the handrail rotation supporting plate, the clamping block is separated from the bayonet and enters the inner ring area or the gap between the inner ring and the outer ring, and the handrail rotation supporting plate can rotate freely.

2. The multi-functional armrest of claim 1, wherein: be equipped with the location in the mesopore and detain, the pore face of mesopore for big-end-up's conical surface, the location detain the outer peripheral face the shape with the conical surface cooperatees, the location is detained and is had the hole, the location is detained with the help of hole cover back on the reference column, revolves soon in the screw of reference column through the screw, the screw head is detained upper end butt with the location.

3. The multi-functional armrest of claim 1, wherein: the positioning post is provided with at least one limiting notch on the peripheral surface, the positioning buckle is correspondingly provided with at least one latch, and the latch is inserted into the limiting notch.

4. The multi-functional armrest of claim 1, wherein: the rotating control switch comprises a lantern ring, two ends of the outer periphery of the lantern ring along the diameter direction of the lantern ring are respectively provided with a pressing part and a pressing part, the size of the lantern ring along the moving direction of the rotating control switch is larger than that of the rotating sleeve, and the lantern ring is sleeved outside the rotating sleeve; the elastic part is a pressure spring; the bottom surface of the handrail rotating support plate is provided with a buckling groove matched with the rotating control switch, the rotating control switch is arranged in the buckling groove, the bottom surface of the handrail rotating support plate is also provided with an elastic piece accommodating groove communicated with the buckling groove, the elastic piece is limited in the elastic piece accommodating groove and is abutted against a pressing part of the rotating control switch, and the clamping block is arranged on the pressing part.

5. The multi-functional armrest of claim 4, wherein: a notch groove is formed in the inner surface of the pressing part, opposite to the bottom surface of the handrail rotating supporting plate, one end, opposite to the elastic piece, of the notch groove is open, and one part of the elastic piece is located in the notch groove; the fixture block is arranged on the outer surface of the pressing part.

6. The multi-functional armrest of claim 4, wherein: a clamping block is also arranged on the surface of the rotation control switch facing the groove; correspondingly, two groups of bayonets are symmetrically arranged on the inner ring, each group of bayonets is 2-3 in interval arrangement, and each clamping block is respectively matched with one group of bayonets.

7. The multi-functional armrest of claim 1, wherein: a sliding seat and a handrail body are arranged above the handrail rotating supporting plate, and the sliding seat and the handrail body are assembled together; the upper end of the handrail rotating supporting plate is convexly provided with at least two guide pillars which are arranged at intervals, the sliding seat is a hollow shell with an open upper end, a straight hole is formed in a bottom plate of the sliding seat, the guide pillars are upwards inserted into the straight hole, the sliding seat slides back and forth along the guide pillars, and an adjusting device for adjusting the degree of tightness of sliding is further arranged in the sliding seat.

8. The multi-functional armrest of claim 7, wherein: from top to bottom adjusting device include adjusting screw, preforming, spring and cup joint the complex briquetting with the guide pillar, the briquetting lower extreme supports on the bottom plate of sliding seat, and the spring housing offsets with preforming, briquetting respectively at both ends about the guide pillar outside and the spring, and preforming center department is equipped with the mounting hole, and the guide pillar upper end has the screw hole, and the preforming passes through adjusting screw to be fixed in the guide pillar upper end.

9. The multi-functional armrest of claim 8, wherein: the upper end of the handrail rotating support plate is upwards convexly provided with two guide posts which are arranged at intervals; the pressing block is a strip-shaped sliding rail which is connected with two guide posts simultaneously.

10. The multi-functional armrest of claim 9, wherein: two symmetrical convex ribs are arranged on two sides of a straight hole on the bottom plate of the sliding seat, a sliding groove is formed between the two convex ribs, and the pressing block is positioned in the sliding groove.

Images