CN219613427U - But handrail structure of rotation regulation - Google Patents

Abstract

The utility model discloses a rotatable and adjustable handrail structure which comprises a stand column and a handrail support, wherein the stand column is rotationally connected with the handrail support, a rotating groove is formed in the stand column, a plurality of gear grooves are formed in the rotating groove, movable pins matched with the gear grooves are arranged in the handrail support, and when the movable pins are clamped into the gear grooves, the handrail support is fixed relative to the stand column, and the angle of the handrail support is adjusted by adjusting the position of the movable pins clamped into the gear grooves. The utility model is rotationally connected with the armrest support at the upper end of the upright post, so as to realize the relative rotation of the armrest support and the upright post, the movable pin is arranged in the armrest support, and the gear groove matched with the movable pin is arranged in the upright post, so that the gradual adjustment of the rotation angle of the armrest support is realized, and the arm can obtain a relative comfortable position; the whole structure is simple, and the function is reliable.

Description

But handrail structure of rotation regulation

Technical Field

The present disclosure relates to armrests, and particularly to an armrests with a rotatable and adjustable armrest.

Background

The armrests of office chairs on the market today are usually fixed structures, partly provided with height adjusting structures; when the back of the human body leans backwards, the armrest cannot rotate backwards. When the human body is inclined at a slightly excessive angle, the elbow only contacts the rear end of the armrest surface, but not the whole arm contacts the whole armrest surface. When the arms rest, the arms cannot be positioned at a comfortable position, and the use experience is affected. Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a rotatable armrest structure, which solves the problem that the existing armrest structure cannot be subjected to angle adjustment.

The technical scheme adopted by the utility model for solving the technical problems is to provide a rotationally adjustable armrest structure, which comprises an upright post and an armrest support, wherein the upright post is rotationally connected with the armrest support, a rotary groove is formed in the upright post, a plurality of gear grooves are formed in the rotary groove, movable pins matched with the gear grooves are arranged in the armrest support, and when the movable pins are clamped into the gear grooves, the armrest support is fixed relative to the upright post, and the angle of the armrest support is adjusted by adjusting the position of the movable pins clamped into the gear grooves.

Further, the bottom end of the armrest support is provided with a first rotary hole, the top end of the upright post is provided with a second rotary hole, the rotary groove is formed in the top end of the upright post, the second rotary hole penetrates through the groove wall of the rotary groove, and the bottom end of the armrest support is inserted into the rotary groove and is pin-connected through a rotary shaft penetrating through the first rotary hole and the second rotary hole.

Further, the bottom of the handrail support is semicircular, the bottom surface of the handrail support is provided with a mounting groove, the movable pin is arranged in the mounting groove, and an elastic piece is arranged between the movable pin and the bottom of the mounting groove.

Further, the elastic piece is an elastic body, the elastic body is a cuboid, and the elastic body is made of microporous polyurethane.

Further, the bottom of rotary tank is the arc that matches with the handrail support bottom, and a plurality of gear recess sets gradually in the bottom of rotary tank, the bottom both ends of rotary tank are provided with spacing inclined plane.

Further, the armrest comprises an armrest surface, and the armrest surface is arranged at the top of the armrest support.

Further, the top surface of handrail support is provided with fixed boss, fixed boss's center is provided with the locating hole, the locating hole is provided with the fixed orifices all around.

Further, one end of the rotating shaft is provided with a round cup head, the other end of the rotating shaft is provided with a threaded hole, and a screw is connected in the threaded hole.

Further, the outer wall of the rotary groove is provided with a circular groove, the second rotary hole is located at the center of the circular groove, and an outer cover for shielding the rotary shaft or the screw is arranged at the circular groove.

Compared with the prior art, the utility model has the following beneficial effects: according to the rotationally adjustable handrail structure, the handrail support is rotationally connected to the upper end of the upright post, so that the handrail support and the upright post relatively rotate, the movable pin is arranged in the handrail support, the gear groove matched with the movable pin is arranged in the upright post, the gradual adjustment of the rotation angle of the handrail support is realized, and the arm can obtain a relatively comfortable position; the whole structure is simple, and the function is reliable.

Drawings

FIG. 1 is a schematic view of a rotationally adjustable armrest structure in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic view of a rotationally adjustable armrest structure in an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an armrest support in an embodiment of the present utility model;

FIG. 4 is a schematic view of a handrail support according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a post in an embodiment of the utility model;

FIG. 6 is a schematic structural view of a column according to an embodiment of the present utility model;

fig. 7 is a schematic structural view of a rotary shaft in an embodiment of the present utility model.

In the figure:

1. a rotation shaft; 2. an elastic member; 3. a movable pin; 4. a column; 5. a handrail support; 6. a handrail surface; 7. a screw; 8. an outer cover; 11. a cup head; 12. a threaded hole; 41. a second rotation hole; 42. a rotary groove; 43. a gear groove; 44. limiting inclined planes; 46. a circular groove; 51. a fixing boss; 52. a first rotation hole; 53. and a mounting groove.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

FIG. 1 is a schematic view of a rotationally adjustable armrest structure in accordance with an embodiment of the present utility model; fig. 2 is a schematic view illustrating a rotationally adjustable armrest structure according to an embodiment of the present utility model.

Referring to fig. 1 and 2, the rotationally adjustable armrest structure in the embodiment of the utility model includes an upright post 4 and an armrest support 5, the upright post 4 is rotationally connected with the armrest support 5, a rotation groove 42 is provided on the upright post 4, a plurality of gear grooves 43 are provided in the rotation groove 42, a movable pin 3 matched with the gear grooves 43 is provided in the armrest support 5, when the movable pin 3 is clamped into the gear grooves 43, the armrest support 5 is fixed relative to the upright post 4, and the angle of the armrest support 5 is adjusted by adjusting the position of the movable pin 3 clamped into the gear grooves 43.

Specifically, the bottom end of the armrest support 5 is provided with a first rotation hole 52, the top end of the upright 4 is provided with a second rotation hole 41, the rotation groove 42 is provided at the top end of the upright 4, the second rotation hole 41 is provided through the groove wall of the rotation groove 42, and the bottom end of the armrest support 5 is inserted into the rotation groove 42 and is pinned by the rotation shaft 1 passing through the first rotation hole 52 and the second rotation hole 42.

Referring to fig. 3 and 4, in the rotationally adjustable armrest structure according to the embodiment of the present utility model, the bottom end of the armrest support 5 is semicircular, the bottom surface of the armrest support 5 is provided with a mounting groove 53, the movable pin 3 is disposed in the mounting groove 53, and an elastic member 2 is disposed between the movable pin 3 and the bottom of the mounting groove 53.

Specifically, the movable pin 3 is a strip-shaped plastic piece and is formed by injection molding nylon and fiber materials with certain wear resistance. The section of the movable pin 3 is square, and the front end is arc-shaped.

Specifically, the armrest comprises an armrest surface 6, and the armrest surface 6 is arranged on the top of the armrest support 5. The top surface of the armrest support 5 is provided with a fixing boss 51, the center of the fixing boss 51 is provided with a positioning hole, the periphery of the positioning hole is provided with a fixing hole, and the armrest support 5 is connected with the armrest surface 6 through a screw connected to the fixing hole.

Preferably, the elastic member 2 is an elastomer, the elastomer is a cuboid, and the elastomer is made of microporous polyurethane. The elastic body has strong elasticity after being compressed, and has the characteristic of small lateral expansion.

Referring to fig. 5 and 6, in the rotationally adjustable armrest structure according to the embodiment of the present utility model, the bottom of the rotation groove 42 is arc-shaped and matched with the bottom end of the armrest support 5, a plurality of gear grooves 43 are sequentially disposed at the bottom of the rotation groove 42, and limiting inclined planes 44 are disposed at two ends of the bottom of the rotation groove 42. The limiting slope 44 limits the rotation angle of the rotating bracket 5.

Preferably, the outer wall of the rotation groove 42 is provided with a circular groove 46, the second rotation hole 41 is located at the center of the circular groove 46, and the circular groove 46 is provided with an outer cover 8 for shielding the rotation shaft 1 or the screw 7. Preventing the user from seeing the internal structure and making the whole upright 4 look beautiful.

Referring to fig. 7, in the rotationally adjustable armrest structure according to the embodiment of the present utility model, a circular cup head 11 is disposed at one end of a rotation shaft 1, a threaded hole 12 is disposed at the other end, and a screw 7 is connected to the threaded hole 12.

In the rotationally adjustable armrest structure of the embodiment of the utility model, the back of a user leans back and the small arm is tilted slowly when in actual use, and only the elbow is contacted with the rear end of the armrest surface 6. The armrest surface 6 will rotate a certain angle backwards under the pressure of the elbow. The movable pin 3 rotates along with the rotating bracket 5, the head of the movable pin 3 slides from one gear groove 43 to the next gear groove 43, the movable pin 3 can move back and forth in the mounting groove 53 of the rotating bracket 5 in a telescopic manner, and meanwhile, the elastic piece 2 can be compressed and released; the user can better fit and support the armrest surface 6 below the elbow, so as to bring better arm relaxing effect.

In summary, according to the rotationally adjustable armrest structure provided by the utility model, the armrest support 5 is rotationally connected to the upper end of the upright post 4, so that the armrest support 5 and the upright post 4 can rotate relatively, the movable pin 3 is arranged in the armrest support 5, and the gear groove 43 matched with the movable pin 3 is arranged in the upright post 4, so that the gradual adjustment of the rotation angle of the armrest support 5 can be realized, and the arm can obtain a relatively comfortable position; the whole structure is simple, and the function is reliable.

While the utility model has been described with reference to the preferred embodiments, it is not intended to limit the utility model thereto, and it is to be understood that other modifications and improvements may be made by those skilled in the art without departing from the spirit and scope of the utility model, which is therefore defined by the appended claims.

Claims (9)

1. The utility model provides a but rotationally adjustable's handrail structure, its characterized in that includes stand and handrail support, the stand with handrail support swivelling joint, be provided with the rotary groove on the stand, be provided with a plurality of gear recesses in the rotary groove, set up in the handrail support with the movable pin of gear recess matching, the movable pin card is gone into the setting and is in during the gear recess, will the handrail support is relative the stand is fixed, through the adjustment movable pin card is gone into the position adjustment of gear recess the angle of handrail support.

2. The rotationally adjustable armrest structure of claim 1, wherein the armrest support bottom end is provided with a first swivel aperture, the top end of the upright is provided with a second swivel aperture, the swivel slot is provided at the top end of the upright, the second swivel aperture is provided through the slot wall of the swivel slot, and the armrest support bottom end is inserted into the swivel slot and pinned by a swivel shaft passing through the first swivel aperture and the second swivel aperture.

3. The rotationally adjustable armrest structure of claim 1, wherein the armrest support has a semicircular bottom end, a mounting slot is provided in the bottom surface of the armrest support, the movable pin is disposed in the mounting slot, and an elastic member is disposed between the movable pin and the bottom of the mounting slot.

4. A rotationally adjustable handrail construction as claimed in claim 3, wherein the resilient member is an elastomer, the elastomer is a cuboid, and the elastomer is a microcellular polyurethane.

5. The rotationally adjustable handrail structure of claim 1, wherein the bottom of the rotary groove is arc-shaped and matched with the bottom end of the handrail support, the plurality of gear grooves are sequentially arranged at the bottom of the rotary groove, and limiting inclined planes are arranged at two ends of the bottom of the rotary groove.

6. The rotationally adjustable armrest structure of claim 1 further comprising an armrest surface disposed on top of the armrest support.

7. The rotationally adjustable armrest structure of claim 6, wherein the armrest support has a top surface provided with a fixing boss, a center of the fixing boss is provided with a positioning hole, and fixing holes are provided around the positioning hole.

8. The rotationally adjustable armrest structure of claim 2, wherein the rotating shaft is provided with a circular cup head at one end and a threaded hole at the other end, and wherein a screw is connected to the threaded hole.

9. The rotationally adjustable armrest structure of claim 8, wherein the outer wall of the swivel slot is provided with a circular recess, the second swivel hole being located in the center of the circular recess, and an outer cover for shielding the swivel shaft or the screw being provided at the circular recess.