CN220529627U

CN220529627U - Telescopic handrail frame

Info

Publication number: CN220529627U
Application number: CN202322298358.4U
Authority: CN
Inventors: 肖旗
Original assignee: Anji Judor Furniture Co Ltd
Current assignee: Anji Judor Furniture Co Ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-02-27
Anticipated expiration: 2033-08-25

Abstract

The telescopic handrail frame comprises a handrail and a supporting cylinder connected with the handrail, wherein a supporting rod sleeved in the supporting cylinder is arranged at the bottom of the supporting cylinder, a plurality of limiting teeth arranged along the length direction of the supporting rod are formed on the inner wall of the supporting rod, a clamping assembly matched with the limiting teeth is arranged in the supporting cylinder, the clamping assembly comprises a back plate and a pawl clamped with the limiting teeth, the pawl is rotatably connected to the back plate, and a reset spring used for locking the pawl is arranged between the pawl and the back plate; compared with the prior art, through setting up spacing tooth and corresponding pawl to realize the joint between pawl and the spacing tooth under reset spring's effect, thereby realize supporting the high spacing of section of thick bamboo on the bracing piece, and drive the pawl through pulling supporting section of thick bamboo, when the lateral force that the pulling force corresponds is greater than reset spring's elasticity, realize reset spring's the retract, thereby realize pawl joint to different spacing tooth in, realize supporting the high regulation of section of thick bamboo on the bracing piece.

Description

Telescopic handrail frame

Technical Field

The utility model relates to the technical field of armrests, in particular to a telescopic armrest frame.

Background

The ergonomic chair is designed to be elegant, unique, fashionable and light, and is a novel environment-friendly healthy chair commonly applied to modern families, entertainment, internet bars, hotels, leisure, meeting rooms, office computer desks and the like. The design principle is released naturally, and the human-based regulation is realized, so that the method is suitable for the regulation of various body types; the material is mainly environment-friendly.

The ergonomic chair mainly adopts mesh cloth components: the cushion and the chair back are made of Du Bangsha +polyester fiber, environment-friendly cloth, high-quality memory cotton and other elastic environment-friendly materials, and the technology is very suitable for the development of new trend of furniture in the future. Has good ventilation and heat dissipation characteristics, is comfortable and healthy, can prevent the growth environment of bacteria generated in the use process of the chair, can reduce the compression area of the back and the buttocks, press the acupoints at the stressed position, promote the blood circulation of the back and the buttocks, and avoid the strain of neck, shoulder and waist.

The height and the angle of the armrests of the ergonomic chair can be adjusted generally, so that the hand and the table top can be smoothly transited to prevent the mouse hand from generating, the correct height of the armrests is adjusted to 90 degrees between the arms and the elbows, and the arms naturally hang down at the moment without any shoulder hanging feeling to be correct. The long-term arm can cause shoulder ache, scapulohumeral periarthritis and other conditions when the arm is unsupported or poorly supported, and the health is very much affected.

Chinese patent No. CN104486971a discloses a height adjusting device in daily appliances and a armrest device of a chair provided with the height adjusting device, which comprises a lower support rod and an upper support tube, wherein the lower support rod stands up on the side of the seat of the chair, and the upper end part is tubular; the upper support cylinder is provided with a handrail at the upper end, is externally matched with the lower support rod, can slide in the up-down direction, and is provided with a plurality of connecting parts at the inner side.

The handrail device disclosed by the above is complex in integral structure, difficult to assemble and disassemble, and meanwhile, due to friction of the handrail device in the lifting process, after a period of use, looseness among various parts is easily caused, so that lifting effect is affected, and the handrail device with the complex structure is difficult to realize quick maintenance.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the telescopic handrail frame which is simple in structure, convenient to assemble and disassemble and convenient to maintain.

In order to achieve the above object, the present utility model adopts the following technical scheme: the utility model provides a telescopic handrail frame, includes the handrail that is connected and the support section of thick bamboo that is connected with the handrail, support section of thick bamboo bottom is equipped with the bracing piece that cup joints in support section of thick bamboo, and the bracing piece inner wall is formed with a plurality of spacing teeth that set up along bracing piece length direction, is equipped with the joint subassembly with spacing tooth looks adaptation in the support section of thick bamboo, and the joint subassembly includes the backplate and the pawl with spacing tooth looks joint, and the pawl rotates to be connected on the backplate, and is equipped with the reset spring who is used for locking the pawl between pawl and the backplate.

As a preferable scheme of the utility model, the limit teeth are formed on two sides of the inner wall of the support rod, two pawls corresponding to the limit teeth on two sides of the inner wall of the support rod are arranged on the clamping assembly, and a fixed shaft in rotary connection with the pawls is arranged in the middle of each pawl.

As a preferable mode of the utility model, the back plate is provided with a reinforcing plate for clamping the pawl, and the reinforcing plate is provided with a positioning hole for loading the fixed shaft.

As a preferable scheme of the utility model, a cavity for placing the clamping assembly is formed in the supporting rod, and a cover plate for sealing the cavity is arranged on the supporting rod.

As a preferable scheme of the utility model, the clamping assembly further comprises a control block for controlling the pawl to rotate, the control block and the return spring are arranged at two opposite ends of the pawl, and the control block is abutted with the cover plate.

As a preferable mode of the utility model, the backboard is provided with a fixed block for limiting the moving range of the control block, and the control block is sleeved on the fixed block.

As a preferable scheme of the utility model, the clamping assembly further comprises a stabilizing plate which is abutted against the inner wall of the supporting rod.

As a preferable scheme of the utility model, the top of the supporting cylinder is provided with a sinking type abutting platform, and the top of the clamping assembly is provided with a round table which abuts against the sinking type abutting platform.

As a preferable scheme of the utility model, the sinking type abutting platform and the round platform are provided with connecting holes which are communicated.

As a preferable mode of the utility model, a through hole is formed in the middle of the sinking type abutting platform and is arranged along the length direction of the supporting cylinder, and the backboard is arranged in the through hole.

Compared with the prior art, the utility model has the beneficial effects that: through setting up spacing tooth and corresponding pawl to realize the joint between pawl and the spacing tooth under reset spring's effect, thereby realize supporting the high spacing of section of thick bamboo on the bracing piece, and drive the pawl through pulling supporting the section of thick bamboo, when the lateral force that the pulling force corresponds is greater than reset spring's elasticity, realize reset spring's the retract, thereby realize the pawl joint to different spacing tooth in, realize supporting the high regulation of section of thick bamboo on the bracing piece, realize supporting the high regulation of handrail on the section of thick bamboo, overall structure is simple convenient, the quick maintenance of later stage of being convenient for.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic illustration of the connection of the cover plate to the support rod;

FIG. 3 is a schematic illustration of the connection of the support rod to the clamping assembly;

FIG. 4 is a schematic view of the installation of a stabilizer plate;

FIG. 5 is a schematic structural view of the clamping assembly;

FIG. 6 is a schematic view of an arrangement of support rods;

FIG. 7 is a schematic view of the structure of the support cylinder;

reference numerals: the handrail 1, the support tube 2, the sunken butt platform 21, the through-hole 22, the bracing piece 3, the cavity 31, the spacing tooth 32, the joint subassembly 4, backplate 41, pawl 42, reset spring 43, fixed axle 44, control block 45, fixed block 46, stabilizer 47, round platform 48, gusset 49, locating hole 491, connecting hole 5.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-7, a telescopic handrail frame comprises a handrail 1 and a supporting cylinder 2 connected with the handrail 1, wherein a supporting rod 3 sleeved in the supporting cylinder 2 is arranged at the bottom of the supporting cylinder 2, a plurality of limiting teeth 32 arranged along the length direction of the supporting rod 3 are formed on the inner wall of the supporting rod 3, a clamping assembly 4 matched with the limiting teeth 32 is arranged in the supporting cylinder 2, the clamping assembly 4 comprises a back plate 41 and a pawl 42 clamped with the limiting teeth 32, the pawl 42 is rotationally connected onto the back plate 41, and a reset spring 43 used for locking the pawl 42 is arranged between the pawl 42 and the back plate 41.

The handrail 1 and the support cylinder 2 are rotationally connected, the support rod 3 is vertically arranged, the support cylinder 2 is in sliding connection with the support rod 3, and the handrail 1 is driven to synchronously lift through the lifting of the support cylinder 2 on the support rod 3, so that the height of the handrail 1 is adjusted.

The clamping assembly 4 is clamped with the limiting teeth 32 at different positions, so that the supporting cylinder 2 at the positions of the different supporting rods 3 is clamped, the pawl 42 is clamped on the limiting teeth 32 at different positions, and the supporting cylinder 2 is limited in height of the supporting cylinder 2 and the handrail 1 after the height is adjusted.

The clamping assembly 4 is fixedly connected with the supporting cylinder 2 through bolts, so that the positions of the supporting cylinder 2 and the handrail 1 are adjusted while the positions of the clamping assembly 4 are adjusted, the back plate 41 is used for supporting the pawl 42, the outer side of the pawl 42 is abutted with the limiting teeth 32, clamping connection between the pawl 42 and the limiting teeth 32 is achieved, the reset spring 43 is abutted with the inner side of the pawl 42, and better clamping stability between the pawl 42 and the limiting teeth 32 is ensured under the action of the reset spring 43.

The spacing teeth 32 are formed on two sides of the inner wall of the support rod 3, two pawls 42 corresponding to the spacing teeth 32 on two sides of the inner wall of the support rod 3 are arranged on the clamping assembly 4, a fixed shaft 44 in rotary connection with the pawls 42 is arranged in the middle of the pawls 42, the fixed shaft 44 is fixedly connected with the back plate 41, the pawls 42 are in rotary connection with the fixed shaft 44, and under the action of the fixed shaft 44, the pawls 42 are rotated on the back plate 41, so that the pawls 42 are clamped or separated from the spacing teeth 32.

The backboard 41 is provided with the reinforcing plate 49 for clamping the pawl 42, the reinforcing plate 49 is provided with the locating hole 491 for loading the fixed shaft 44, the pawl 42 is arranged between the reinforcing plate 49 and the backboard 41, the reinforcing plate 49 is fixedly connected with the backboard 41 through bolts, the fixed shaft 44 has better stability in the use process under the action of the locating hole 491, and meanwhile, the pawl 42 has better stability in the use process.

The cavity 31 used for placing the clamping assembly 4 is formed in the supporting rod 3, the cover plate 33 used for sealing the cavity 31 is arranged on the supporting rod 3, the opening of the cavity 31 is formed in the top and the side face of the supporting rod 3, the cover plate 33 is used for sealing the side face opening of the supporting rod 3, therefore, under the action of the cover plate 33, the clamping assembly 4 is sealed, and the opening in the top of the supporting rod 3 is convenient for the clamping assembly 4 to move in the cavity 31.

The clamping assembly 4 further comprises a control block 45 for controlling the pawl 42 to rotate, the control block 45 and the return spring 43 are arranged at two opposite ends of the pawl 42, the control block 45 is in butt joint with the cover plate 33, the control block 45 is connected to the top of the pawl 42, and the return spring 43 is in butt joint with the bottom of the pawl 42.

The fixed shafts 44 are disposed on opposite sides of the control block 45, and when the control block 45 moves upward, the top of the pawl 42 is driven to rotate towards the outer side of the back plate 41, so as to drive the bottom of the pawl 41 to rotate towards the inner side of the back plate 41, and the connection and disconnection between the pawl 41 and the limiting teeth 32 are realized.

When the control block 45 moves downwards, the top of the pawl 42 is driven to rotate towards the inner side of the back plate 41, so that the bottom of the pawl 41 is driven to rotate towards the outer side of the back plate 41, and the pawl 41 and the limiting teeth 32 are clamped.

The bottom of the limiting tooth 32 is of a horizontal structure, an inclined plane corresponding to the pawl 41 is formed at the top of the limiting tooth 32, when the supporting cylinder 2 is pulled upwards to move, the clamping assembly 4 is driven to push upwards synchronously, at the moment, the control block 45 abutted with the cover plate 33 is subjected to downward friction, and when the upward tension is greater than the friction of the control block 45, the pawl 41 is clamped at the position of the last limiting tooth 32 under the action of the inclined plane, so that the height of the supporting cylinder 2 in the upward direction is adjusted.

When the supporting cylinder 2 is pulled downwards, the clamping assembly 4 is driven to push downwards synchronously, at the moment, the control block 45 abutted against the cover plate 33 is subjected to upward friction force, and under the action of upward movement of the control block 45, the top of the pawl 42 is driven to rotate towards the outer side of the back plate 41, so that the bottom of the pawl 41 is driven to rotate towards the inner side of the back plate 41, the connection and disconnection of the pawl 41 and the limiting teeth 32 are realized, and the supporting cylinder 2 slides downwards.

The backboard 41 is provided with a fixed block 46 for limiting the moving range of the control block 45, the control block 45 is sleeved on the fixed block 46, the middle part of the control block 45 is provided with a sleeved groove sleeved with the control block 45, the size of the sleeved groove is larger than that of the fixed block 46, and the gap between the sleeved groove and the fixed block 46 is the moving range of the control block 45.

The joint subassembly 4 still includes the stabilizer plate 47 with bracing piece 3 inner wall butt for the lift of joint subassembly 4 in bracing piece 3 has better stability under the effect of stabilizer plate 47.

The top of the supporting cylinder 2 is provided with a sinking type abutting platform 21, the top of the clamping assembly 4 is provided with a round platform 48 which abuts against the sinking type abutting platform 21, the round platform 48 is embedded in the sinking type abutting platform 21, the sinking type abutting platform 21 and the round platform 48 are provided with connecting holes 5 which are communicated, and bolts are arranged in the connecting holes 5 to realize fixed connection between the sinking type abutting platform 21 and the round platform 48.

The middle part of the sinking type abutting platform 21 is provided with a through hole 22 arranged along the length direction of the supporting cylinder 2, the back plate 41 is arranged in the through hole 22, the through hole 22 and the back plate 41 are fixedly connected through bolts, after the back plate 41 is firstly placed in the supporting rod 3, the fixed connection between the back plate 41 and the round table 48 is realized through bolts, and the fixed connection between the sinking type abutting platform 21 and the round table 48 is realized through bolts.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more herein: the terms of the armrest 1, the support cylinder 2, the sinking abutment platform 21, the through hole 22, the support rod 3, the cavity 31, the limiting teeth 32, the cover plate 33, the clamping assembly 4, the back plate 41, the pawl 42, the return spring 43, the fixed shaft 44, the control block 45, the fixed block 46, the stabilizing plate 47, the round table 48, the reinforcing plate 49, the positioning hole 491, the connecting hole 5 and the like are not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a telescopic handrail frame, includes handrail (1) that is connected and the support section of thick bamboo (2) that is connected with handrail (1), its characterized in that, support section of thick bamboo (2) bottom is equipped with and cup joints bracing piece (3) in support section of thick bamboo (2), bracing piece (3) inner wall is formed with a plurality of spacing teeth (32) that set up along bracing piece (3) length direction, be equipped with in support section of thick bamboo (2) with spacing tooth (32) looks adaptation joint subassembly (4), joint subassembly (4) include backplate (41) and with spacing tooth (32) looks joint pawl (42), pawl (42) rotate and connect on backplate (41), and be equipped with between pawl (42) and backplate (41) and be used for locking reset spring (43) of pawl (42).

2. The telescopic handrail frame according to claim 1, wherein the limiting teeth (32) are formed on two sides of the inner wall of the supporting rod (3), two pawls (42) corresponding to the limiting teeth (32) on two sides of the inner wall of the supporting rod (3) are arranged on the clamping assembly (4), and a fixed shaft (44) connected with the pawls (42) in a rotating mode is arranged in the middle of each pawl (42).

3. A telescopic armrest frame according to claim 2, characterized in that the back plate (41) is provided with a reinforcing plate (49) for clamping the pawl (42), and the reinforcing plate (49) is formed with a positioning hole (491) for loading the fixed shaft (44).

4. A telescopic armrest frame according to claim 1, characterized in that the supporting rod (3) is internally provided with a cavity (31) for placing the clamping assembly (4), and the supporting rod (3) is provided with a cover plate (33) for sealing the cavity (31).

5. The telescopic armrest frame according to claim 4, wherein the clamping assembly (4) further comprises a control block (45) for controlling the rotation of the pawl (42), the control block (45) and the return spring (43) are disposed at opposite ends of the pawl (42), and the control block (45) is abutted against the cover plate (33).

6. The telescopic armrest frame according to claim 5, wherein a fixed block (46) for limiting the movement range of the control block (45) is formed on the back plate (41), and the control block (45) is sleeved on the fixed block (46).

7. A telescopic armrest frame as claimed in claim 1, characterized in that said clamping assembly (4) further comprises a stabilizing plate (47) in abutment with the inner wall of the support bar (3).

8. The telescopic armrest frame according to claim 1, wherein the top of the supporting cylinder (2) is formed with a sinking abutment platform (21), and the top of the clamping assembly (4) is formed with a round table (48) which abuts against the sinking abutment platform (21).

9. A telescopic armrest frame according to claim 8, characterized in that the sinking abutment platform (21) and the circular table (48) are formed with connecting holes (5) in communication.

10. The telescopic armrest frame according to claim 8, wherein a through hole (22) is formed in the middle of the sinking abutment platform (21) and is disposed along the length direction of the support cylinder (2), and the back plate (41) is disposed in the through hole (22).