CN209825914U - Handrail lifting mechanism with direct high-load function - Google Patents

Abstract

The utility model discloses a handrail lifting mechanism with direct high-load function, which comprises a handrail upright post, a sleeve, a lifting button and a button bracket, wherein the sleeve is sleeved outside the handrail upright post, the lifting button is arranged on the button bracket, and the button bracket is fixed at the top of the sleeve; one end of the lifting button is a pressing end, the other end of the lifting button is a clamping column end, the end part of the pressing end is a finger pressing part, and a gear clamping column is arranged at the end part of the clamping column end; the back of the sleeve is provided with a button hole, and the finger pressing part is clamped in the button hole; the side surface of the upright supporting column is provided with a gear groove, and the gear clamping column is clamped in the gear groove. The utility model realizes the functions of clamping and supporting, simplifies the internal structure of the prior handrail, reduces the fittings, wins more modeling space for the handrail upright post and leads the design of the handrail to be more flexible and changeable; the material, assembly and later maintenance costs are low, and the application range is wide.

Description

Handrail lifting mechanism with direct high-load function

Technical Field

The utility model relates to a furniture articles for use especially relate to a handrail elevating system who has direct high load function of chair.

Background

The seat is an appliance used by everyone every day, particularly for people working in offices, and needs to be seated on the seat for a long time, the quality of the seat directly influences the sitting feeling of users, and since the height, the body type and the use habit of each user are different, the height-adjustable armrests are also gradually popularized on the office seats besides the traditional cushion height adjustment.

At present, a plurality of seat armrest lifting mechanisms are available in the market, the number of parts in each seat armrest lifting mechanism is large, the position relationship and the connection relationship among the parts are complex, the disassembly is particularly troublesome during maintenance, and the position relationship and the connection relationship of each part are unclear during assembly, so that the maintenance operation is complicated. As shown in fig. 1, the slide plate 2 is driven to slide by the elasticity of the spring 5 by pressing the lifting button 1, so that the buckle 4 can transversely extend and retract back and forth in the slide plate 2, and can be clamped or avoided with the lifting gear groove 3. The lifting button 1 of the handrail is not directly involved in the bearing function of the whole handrail, and is only connected with the sliding plate 2 and can drive the sliding plate 2 to slide. The whole lifting system has the advantages of multiple structural accessories, complex action, large occupied space, easy occurrence of functional disorder and difficult assembly and subsequent maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a handrail elevating system with direct high load function is provided, has the lift screens function with lifting button, has the function that directly bears simultaneously again, has simplified inner structure.

The technical scheme adopted by the utility model for solving the technical problems is to provide a handrail lifting mechanism with direct high-load function, which comprises a handrail upright post, a sleeve, a lifting button and a button support, wherein the sleeve is sleeved outside the handrail upright post, the lifting button is arranged on the button support, and the button support is fixed at the top of the sleeve; one end of the lifting button is a pressing end, the other end of the lifting button is a clamping column end, the clamping column end is arranged in the handrail column, the end part of the pressing end is a finger pressing part, and the end part of the clamping column end is provided with a gear clamping column; the back of the sleeve is provided with a button hole, and the finger pressing part is clamped in the button hole; the side surface of the upright supporting column is provided with a gear groove, and the gear clamping column is clamped in the gear groove.

Furthermore, the lifting button is L-like, a finger pressing part of the lifting button is arranged on the short side, and the surface of the finger pressing part is arc-shaped; the gear clamping columns are arranged on two sides of the end part of the long edge; the lifting button is characterized in that a rotating hole is formed in the corner of the lifting button, a bearing hanging lug is arranged in the middle of the button support, and the rotating hole of the lifting button is fixed to the bearing hanging lug through a rotating bearing.

Furthermore, the material of the rotating bearing is stainless steel, and the diameter of the rotating bearing is more than or equal to 5 mm.

Further, the gear card post is cylindrical boss, gear card post diameter is 7mm, and the height is 4 mm.

Further, the one end that lifting button was kept away from to the bearing hangers is equipped with rotatory spacing post, one side that the bearing hangers is close to lifting button is equipped with the button and dodges the hole, the hole middle part is kept away to the button is equipped with the spring reference column, lifting button's finger is pressed the splenium back and is equipped with the spring groove, be equipped with the spring in the spring groove, the other end card of spring is established on the spring reference column.

Further, the spring is a round wire type spring.

Further, handrail stand one end is the stiff end other end and establishes the end for the card, the end is established to the card is hollow structure, the gear groove sets up in the card establishes the end side, the gear groove is equipped with a plurality of gear holes, the equidistant setting on the direction of height of gear hole, the interval in gear hole is greater than 8 mm.

Furthermore, the button support is fixed to the top of the sleeve through a self-tapping screw, the self-tapping screw is a 304 stainless steel countersunk head self-tapping screw, and the head of the self-tapping screw is a cross-shaped groove flat head.

The utility model discloses contrast prior art has following beneficial effect: the utility model provides a handrail lifting mechanism with direct high load function, the lifting button is clamped and supported by a spring and a gear clamping column; when the lifting button is pressed, the spring is compressed, and the lifting button rotates around the rotary bearing within a certain range of angle, so that the gear clamping column is separated from the gear hole of the handrail upright column to be lifted freely; the lifting button simultaneously realizes the functions of clamping and supporting, simplifies the internal structure of the prior handrail, reduces accessories and greatly simplifies the product manufacture; the assembly of the armrests is simplified, and the lifting function of the chair is more reliable; a plurality of space for designing and modeling the handrail upright post are obtained, so that the design of the handrail is more flexible and changeable.

Drawings

Fig. 1 is a schematic structural view of a conventional handrail lifting mechanism;

fig. 2 is an exploded view of the handrail lifting mechanism according to the embodiment of the present invention;

fig. 3 is a schematic structural view of the lifting button of the embodiment of the present invention at different angles;

fig. 4 is a schematic structural view of the button bracket according to the embodiment of the present invention at different angles;

fig. 5 is a schematic structural view of the handrail upright column of the embodiment of the present invention at different angles;

fig. 6 is a diagram of the application of the handrail lifting mechanism according to the embodiment of the present invention.

In the figure:

1 traditional lifting button 2 slide 3 lifting gear groove

4 fastener 5 traditional spring 7 self-tapping screw

8 button support 9 spring 10 swivel bearing

11 lifting button 12 handrail upright post 13 sleeve

81 bearing hangers 82 button dodge hole 83 spring positioning post

84 rotating limiting column 111 finger pressing part 112 gear clamping column

113 spring groove 114 rotation hole 121 clamping end

122 fixed end 123 gear groove 132 button hole

Detailed Description

The invention is further described with reference to the following figures and examples.

Fig. 1 is an exploded view of a handrail lifting mechanism according to an embodiment of the present invention.

Referring to fig. 2, the handrail lifting mechanism with direct high-load function provided by the present invention comprises a handrail upright 12, a sleeve 13, a lifting button 11 and a button support 8, wherein the sleeve 13 is sleeved outside the handrail upright 12, the lifting button 11 is installed on the button support 8, and the button support 8 is fixed on the top of the sleeve 13 through a self-tapping screw 7; one end of the lifting button 11 is a pressing end, the other end is a clamping column end, the clamping column end is arranged in the handrail upright post 12, the end part of the pressing end is a finger pressing part 111, and the end part of the clamping column end is provided with a gear clamping column 112; a button hole 131 is formed in the back of the sleeve 13, and the finger pressing part 111 is clamped in the button hole 131; the side of the handrail upright post 12 is provided with a gear groove 123, and the gear clamping post 112 is clamped in the gear groove 123.

Preferably, in the handrail lifting mechanism with the direct high-load function provided by the utility model, the self-tapping screw 7 is a 304 stainless steel countersunk self-tapping screw, and the head of the self-tapping screw 7 is a cross-shaped groove flat head; the material of the lifting button 11 is reinforced nylon added with 30% of glass fiber, and the material of the handrail upright post 12 is reinforced nylon added with 40% of glass fiber.

Referring to fig. 3, in the handrail lifting mechanism with direct high-load function provided by the present invention, the lifting button 11 is L-like, the finger pressing portion 111 of the lifting button 11 is disposed on the short side, the surface of the finger pressing portion 111 is arc-shaped, and the finger pressing portion is designed to be round and smooth and can be attached to the finger shape; the gear clamping columns 112 are arranged on two sides of the end part of the long side; a rotating hole 114 is arranged at the inflection point of the lifting button 11. Since the rotating bore is designed to bear at least one human body weight, it is generally designed to be above 5MM, and the wall thickness from the inside of the bore to the maximum periphery must be strong, typically above 6 MM.

Preferably, the utility model provides a handrail elevating system, swivel bearing 10 material are the stainless steel, swivel bearing 10 diameter more than or equal to 5 mm. The gear clamping column 112 is a cylindrical boss, the diameter of the gear clamping column 112 is 7mm, and the height of the gear clamping column is 4 mm.

Please refer to fig. 4, the utility model provides a handrail elevating system with direct high load function, button support 8 middle part is equipped with bearing hangers 81, lifting button 11's rotatory hole 114 is fixed to bearing hangers 81 through swivel bearing 10. The one end that lifting button 11 was kept away from to bearing hangers 81 is equipped with rotatory spacing post 84, one side that bearing hangers 81 is close to lifting button 11 is equipped with the button and dodges hole 82, button dodges hole 82 middle part and is equipped with spring location post 83, lifting button 11's finger is pressed the portion 111 back and is equipped with spring groove 113, be equipped with spring 9 in the spring groove 113, spring 9's the other end card is established on spring location post 83.

Preferably, the utility model provides a handrail elevating system with direct high load function, spring 9 is round wire type spring.

Please refer to fig. 5 simultaneously, the utility model provides a handrail elevating system with direct high load function, handrail stand 12 one end are stiff end 122 other end and establish end 121 for the card, card establishes end 121 and is hollow structure, gear groove 123 sets up in card establishes end 121 side, gear groove 123 is equipped with a plurality of gear holes, gear hole equidistant setting on the direction of height, gear hole's interval is greater than 8 mm.

Referring to fig. 6, in practical use, after all the components are assembled, the finger presses the finger pressing portion 111 of the lifting button 11, the spring 9 is compressed, and meanwhile, the lifting button 11 rotates counterclockwise by 4.5 degrees around the rotary bearing 10, and the gear engaging column 112 of the lifting button 11 is completely disengaged from the gear hole of the armrest upright column 12; after the handrail is lifted upwards by a certain distance (the distance can be increased by one or more gears according to actual requirements), the lifting button 11 is released, the lifting button 11 is restored to the original state (rotated in the opposite direction by 4.5 degrees) under the action of the spring 9, and the gear clamping columns 112 are buckled with other gear holes. The whole process completes one lifting cycle.

In summary, the lifting button 11 of the handrail lifting mechanism with direct high-load function provided by the utility model realizes the functions of clamping and supporting at the same time, simplifies the internal structure of the prior handrail, reduces the number of accessories and greatly simplifies the product manufacture; the assembly of the armrests is simplified, and the lifting function of the chair is more reliable; a plurality of space for designing and modeling the handrail upright post is obtained, so that the handrail is more flexible and changeable in design; the material, assembly and later maintenance costs are low, and the application range is wide.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. The handrail lifting mechanism with the direct high-load function is characterized by comprising a handrail upright post (12), a sleeve (13), a lifting button (11) and a button support (8), wherein the sleeve (13) is sleeved outside the handrail upright post (12), the lifting button (11) is installed on the button support (8), and the button support (8) is fixed at the top of the sleeve (13); one end of the lifting button (11) is a pressing end, the other end of the lifting button is a clamping column end, the clamping column end is arranged in the handrail upright column (12), the end part of the pressing end is a finger pressing part (111), and the end part of the clamping column end is provided with a gear clamping column (112); the back of the sleeve (13) is provided with a button hole (131), and the finger pressing part (111) is clamped in the button hole (131); the side surface of the handrail upright post (12) is provided with a gear groove (123), and the gear clamping post (112) is clamped in the gear groove (123).

2. The handrail lifting mechanism with direct high load function according to claim 1, characterized in that the lifting button (11) is L-like, the finger pressing part (111) of the lifting button (11) is arranged on the short side, the surface of the finger pressing part (111) is arc-shaped; the gear clamping columns (112) are arranged on two sides of the end part of the long side; lifting button (11) inflection point department is equipped with swivel hole (114), button support (8) middle part is equipped with bearing hangers (81), lifting button's (11) swivel hole (114) are fixed to bearing hangers (81) through swivel bearing (10).

3. The handrail lifting mechanism with direct high-load function according to claim 2, wherein the rotary bearing (10) is made of stainless steel, and the diameter of the rotary bearing (10) is greater than or equal to 5 mm.

4. The handrail lifting mechanism with direct high load function of claim 2, characterized in that, the gear shift position clamping column (112) is a cylindrical boss, and the gear shift position clamping column (112) has a diameter of 7mm and a height of 4 mm.

5. The handrail lifting mechanism with direct high-load function according to claim 2, wherein one end of the bearing suspension loop (81) far away from the lifting button (11) is provided with a rotation limiting post (84), one side of the bearing suspension loop (81) close to the lifting button (11) is provided with a button avoiding hole (82), the middle part of the button avoiding hole (82) is provided with a spring positioning post (83), the back of the finger pressing part (111) of the lifting button (11) is provided with a spring groove (113), a spring (9) is arranged in the spring groove (113), and the other end of the spring (9) is clamped on the spring positioning post (83).

6. Handrail lifting mechanism with direct high load function according to claim 5, characterized in that the spring (9) is a round wire type spring.

7. The handrail lifting mechanism with direct high load function according to claim 1, wherein the handrail upright (12) has a fixed end (122) at one end and a clamping end (121) at the other end, the clamping end (121) is of a hollow structure, the shift groove (123) is arranged at the side of the clamping end (121), the shift groove (123) is provided with a plurality of shift holes, the shift holes are arranged at equal intervals in the height direction, and the interval of the shift holes is larger than 8 mm.

8. The handrail lifting mechanism with direct high load function according to claim 1, characterized in that the button support (8) is fixed on top of the sleeve (13) by a self-tapping screw (7), the self-tapping screw (7) is a 304 stainless steel countersunk head self-tapping screw, and the head of the self-tapping screw (7) is a cross-recessed flat head.