CN213993014U

CN213993014U - Armrest lifting mechanism

Info

Publication number: CN213993014U
Application number: CN202023086210.7U
Authority: CN
Inventors: 秦然; 陆智; 李德山; 石强; 邓新元
Original assignee: Borgerui Chongqing Technology Co ltd
Current assignee: Borgerui Chongqing Technology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-20
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a handrail elevating system, hold up the arm including vertical setting, be equipped with handrail skeleton on this handrail arm, handrail skeleton includes fixed vertical portion and the horizontal part that links to each other, handrail skeleton has the inner chamber, this inner chamber opening is in vertical portion lower extreme, vertical portion slides and inserts and establishes on holding up the arm, be equipped with lift locking mechanism between vertical portion and the handrail arm, lift locking mechanism is connected with the unblock pole, be connected through the locking lever subassembly between the one end of this unblock pole and the lift locking mechanism, handrail skeleton is freely stretched out to the other end of unblock pole, be equipped with the elasticity piece that resets between unblock pole and the handrail skeleton, this elasticity piece that resets maintains lift locking mechanism and is in lock state through unblock pole and locking lever subassembly. The utility model has the advantages that: the locking and unlocking structures between the handrail framework and the handrail arms are in a hidden state, the unlocking control component, namely the unlocking rod, is exposed to facilitate operation, and is automatically locked after being adjusted in place, so that the handrail is easy to lift and adjust, and the appearance is concise.

Description

Armrest lifting mechanism

Technical Field

The utility model belongs to the seat field, concretely relates to handrail elevating system.

Background

Home and office chairs continue to evolve toward having more abundant functionality and better comfort. The chair arm rest is an important component of the chair. In the face of people with different body types and different use habits and the requirements of different use scenes, the structure and the function of the seat armrest continuously evolve. For example, people of different heights can have different armrest heights in their comfort positions after sitting. People with different arm lengths have different requirements on the length of the handrail. Furthermore, different people have different width requirements for the handrail. Even, because different people have different arm postures after sitting on the seat, the orientation requirements of the armrests are different. To accommodate the different needs of one or more of the above aspects for different users, the structure of the armrest must be functionally designed to be adjustable. From the viewpoint of product reliability and production cost, it is also necessary to make the adjustment structure of the armrest as simple as possible when incorporating the above structural design. Meanwhile, as a daily-use tool, the design of the seat armrest must also take ease of use and beauty into consideration.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a handrail elevating system.

The technical scheme is as follows:

a handrail lifting mechanism comprises a vertically arranged handrail arm, wherein a handrail framework is arranged on the handrail arm, the handrail framework comprises a vertical part and a horizontal part which are fixedly connected, the handrail framework is provided with an inner cavity, the inner cavity is opened at the lower end of the vertical part, the vertical part and the handrail arm are mutually inserted and sleeved in a sliding way to lift the handrail framework, and the key point is that a lifting locking mechanism is arranged between the vertical part and the handrail arm;

the lifting locking mechanism is connected with an unlocking rod, one end of the unlocking rod is connected with the lifting locking mechanism through a locking rod assembly, the locking rod assembly is arranged in the inner cavity of the handrail framework, and the other end of the unlocking rod freely extends out of the handrail framework;

an elastic reset piece is arranged between the unlocking rod and the handrail framework and acts on the unlocking rod and the locking rod assembly to maintain the lifting locking mechanism in a locking state.

By adopting the design, the locking and unlocking structures between the handrail framework and the handrail arms are in a hidden state, the unlocking control component, namely the unlocking rod, is exposed to facilitate operation, and is automatically locked after being adjusted in place, so that the handrail is easy to lift and adjust, and the appearance is simple.

As a preferred technical scheme, an accommodating cavity is formed in the upper part of the armrest arm, and the lifting locking mechanism is arranged in the accommodating cavity;

the lifting locking mechanism comprises a locking plate, the locking plate is fixedly arranged in the accommodating cavity, a lock pin sliding seam and a row of locking bayonets are formed in the locking plate, all the locking bayonets are positioned on the same side of the lock pin sliding seam, all the locking bayonets are distributed along the length direction of the lock pin sliding seam, all the locking bayonets are communicated with the lock pin sliding seam to form a comb-tooth-shaped lock pin through hole, and a lock pin penetrates through the lock pin through hole;

the locking pin is connected with the locking rod assembly.

By adopting the design, the locking can be realized after the lock pin is clamped into any locking bayonet, the lock pin slides in the lock pin sliding seam during unlocking, the lock pin is clamped into different locking bayonets to realize lifting adjustment, and the two ends of the lock pin sliding seam are sealed to prevent the lock pin from being separated, so that the limit of the handrail framework relative to the handrail arm is realized.

As a preferred technical scheme, the two locking plates are arranged in parallel, the lock pin through holes of the two locking plates are opposite, and the lock pin is simultaneously arranged in the two lock pin through holes in a penetrating manner.

By adopting the design, the two ends of the lock pin are clamped into the locking bayonet or the lock pin sliding seam, so that the stability of locking and unlocking during sliding is kept.

As a preferred technical scheme, the handrail framework comprises a handrail support plate which is horizontally arranged, an inner sleeve is connected below the handrail support plate, an outer sleeve is sleeved outside the inner sleeve, and the upper end of the outer sleeve extends outwards and upwards to horizontally surround the handrail support plate so as to form a handrail shell;

the outer sleeve is sleeved outside the arm supporting arm, and the inner sleeve is inserted into the accommodating cavity.

Design more than adopting, the handrail arm is inserted and is established in the intermediate layer cavity between interior sleeve pipe and the outer tube, and the cooperation is stable, is difficult for rocking, improves and uses the comfort.

As a preferred technical scheme, the lock rod assembly comprises a connecting rod vertically arranged in the inner sleeve, the middle part of the connecting rod is connected with the inner sleeve through a connecting rod rotating shaft horizontally arranged, the lower end of the connecting rod is provided with the lock pin, and the upper end of the connecting rod is provided with a plug-in connector;

the locking rod assembly further comprises a bent shifting rod, a button rotating shaft penetrates through a bent part of the bent shifting rod, the button rotating shaft is arranged in parallel with the connecting rod rotating shaft, and the button rotating shaft is fixedly connected with the handrail supporting plate;

both ends of the bent deflector rod extend downwards, one end of the bent deflector rod freely penetrates into the inner sleeve, a socket is arranged corresponding to the connecting rod, and the plug is inserted in the socket;

the other end of the bending deflector rod is fixedly connected with the unlocking rod.

By means of the design, the unlocking rod is operated, the bent driving rod drives the connecting rod to rotate, so that the lock pin slides out of the locking bayonet to be unlocked, the unlocking rod is released, the elastic reset piece pushes the unlocking rod to reset automatically, and the lock pin is clamped into the locking bayonet when the connecting rod is driven to rotate.

As a preferred technical scheme, the extending end of the unlocking rod penetrates out of the lower surface of the armrest shell, and a button is arranged at the extending end of the unlocking rod;

the elastic reset piece is a pressure spring, one end of the pressure spring is inserted in the button, and the other end of the pressure spring abuts against the handrail supporting plate.

By adopting the design, the design button is convenient for positioning and installing the pressure spring, and the structure is simple and reliable.

Compared with the prior art, the beneficial effects of the utility model are that: the locking and unlocking structures between the handrail framework and the handrail arms are in a hidden state, the unlocking control component, namely the unlocking rod, is exposed to facilitate operation, and is automatically locked after being adjusted in place, so that the handrail is easy to lift and adjust, and the appearance is concise.

Drawings

Fig. 1 is a schematic overall structure view of a handrail;

FIG. 2 is a schematic view of a lifting structure;

fig. 3 is a schematic view of the elevation lock mechanism.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1 and 2, a handrail elevating system, including the handrail arm 15 of vertical setting, be equipped with handrail skeleton on this handrail arm 15, handrail skeleton includes fixed vertical portion and the horizontal part that links to each other, handrail skeleton has the inner chamber, this inner chamber opening in vertical portion lower extreme, vertical portion slides and inserts and establish on the handrail arm 15, vertical portion with be equipped with lift locking mechanism between the handrail arm 15, lift locking mechanism is connected with unlocking lever 7a, should unlock lever 7 a's one end with connect through the locking lever subassembly between the lift locking mechanism, the locking lever subassembly set up in handrail skeleton's inner chamber, unlocking lever 7 a's the other end freely stretches out handrail skeleton. An elastic reset piece 8 is arranged between the unlocking rod 7a and the handrail framework, and the elastic reset piece 8 acts on the unlocking rod 7a and the locking rod assembly to maintain the lifting locking mechanism in a locking state.

Specifically, the handrail framework comprises a handrail support plate 3 which is horizontally arranged, and a handrail body 1 is supported above the handrail support plate 3. An inner sleeve 4 is connected below the handrail support plate 3, an outer sleeve 6 is sleeved outside the inner sleeve 4, and the upper end of the outer sleeve 6 extends outwards and upwards to horizontally surround the handrail support plate 3 to form a handrail shell 5. A gap is present between the armrest housing 5 and the edge of the armrest support plate 3, which gap is covered by the shutter 2.

The upper portion of the armrest arm 15 is provided with a containing cavity, an inner sleeve 4 is inserted into the containing cavity, and the outer sleeve 6 is sleeved outside the armrest arm 15.

A lifting locking mechanism is arranged in the accommodating cavity. As shown in fig. 3, the lifting locking mechanism includes a locking plate 14, the locking plate 14 is fixedly disposed in the receiving cavity, the locking plate 14 is provided with a locking pin sliding slit 14a and a row of locking bayonets 14b, all the locking bayonets 14b are located on the same side of the locking pin sliding slit 14a, all the locking bayonets 14b are distributed along the length direction of the locking pin sliding slit 14a, and all the locking bayonets 14b are communicated with the locking pin sliding slit 14a to form a comb-tooth-shaped locking pin through hole. The number of the locking plates 14 is two, the two locking plates 14 are arranged in parallel, the lock pin through holes of the two locking plates 14 are horizontally opposite, and the same lock pin 13 penetrates through the two lock pin through holes. The locking pin 13 is connected to the locking bar assembly.

When the lock pin 13 is positioned in the locking bayonet 14b, the lock pin 13 is locked, and after exiting the locking bayonet 14b and entering the lock pin sliding gap 14a, the lock pin 13 slides, namely unlocking and armrest lifting adjustment are realized.

The locking rod component comprises a connecting rod 11 vertically arranged in the inner sleeve 4, the middle of the connecting rod 11 is connected with the inner sleeve 4 through a connecting rod rotating shaft 12 horizontally arranged, the lower end of the connecting rod 11 extends out of the inner sleeve 4 and is provided with a locking pin 13, and the upper end of the connecting rod 11 is provided with a plug-in connector 11 a.

The locking rod assembly further comprises a bent driving rod 9, a button rotating shaft 10 penetrates through a bent part of the bent driving rod 9, the button rotating shaft 10 is parallel to the connecting rod rotating shaft 12, and the button rotating shaft 10 is fixedly connected with the handrail supporting plate 3.

Both ends of the bending deflector rod 9 extend downwards, and one end of the bending deflector rod 9 freely penetrates into the inner sleeve 4. The inner sleeve 4 is provided with a position-giving opening to allow the bending shift lever 9 to rotate. One end of the bending deflector rod 9 extending into the inner sleeve 4 is provided with a socket 9a corresponding to the connecting rod 11, and the socket 11a is inserted in the socket 9 a. The other end of the bent lever 9 is integrally formed with an unlocking lever 7 a.

The extending end of the unlocking rod 7a penetrates out of the lower surface of the armrest shell 5, and the extending end of the unlocking rod 7a is provided with a button 7. The elastic reset piece 8 can be a compression spring, one end of the compression spring is inserted in the button 7, and the other end of the compression spring abuts against the handrail support plate 3.

When the button 7 is pressed, the lock pin 13 exits the lock bayonet 14b and enters the lock pin sliding slit 14a, so that unlocking is realized, and the lifting of the handrail can be adjusted. When the button 7 is released after the adjustment is completed, the lock pin 13 enters the corresponding lock notch 14b again, and is locked again.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a handrail elevating system, includes the arm of holding up (15) of vertical setting, should hold up and be equipped with handrail skeleton on arm (15), handrail skeleton includes fixed continuous vertical portion and horizontal part, handrail skeleton has the inner chamber, this inner chamber opening in vertical portion lower extreme, vertical portion with hold up arm (15) slip plug bush each other so that handrail skeleton goes up and down, its characterized in that: a lifting locking mechanism is arranged between the vertical part and the armrest arm (15);

the lifting locking mechanism is connected with an unlocking rod (7a), one end of the unlocking rod (7a) is connected with the lifting locking mechanism through a locking rod component, the locking rod component is arranged in the inner cavity of the handrail framework, and the other end of the unlocking rod (7a) freely extends out of the handrail framework;

an elastic reset piece (8) is arranged between the unlocking rod (7a) and the handrail framework, and the elastic reset piece (8) acts on the unlocking rod (7a) and the locking rod assembly to maintain the lifting locking mechanism to be in a locking state.

2. The handrail lifting mechanism of claim 1, wherein: an accommodating cavity is formed in the upper part of the armrest arm (15), and the lifting locking mechanism is arranged in the accommodating cavity;

the lifting locking mechanism comprises a locking plate (14), the locking plate (14) is fixedly arranged in the accommodating cavity, a lock pin sliding seam (14a) and a row of locking bayonets (14b) are formed in the locking plate (14), all the locking bayonets (14b) are located on the same side of the lock pin sliding seam (14a), all the locking bayonets (14b) are distributed along the length direction of the lock pin sliding seam (14a), all the locking bayonets (14b) are communicated with the lock pin sliding seam (14a) to form a comb-tooth-shaped lock pin through hole, and a lock pin (13) penetrates through the lock pin through hole;

the lock pin (13) is connected with the lock rod assembly.

3. The handrail lifting mechanism of claim 2, wherein: the number of the locking plates (14) is two, the two locking plates (14) are arranged in parallel, the lock pin through holes of the two locking plates (14) are opposite, and the lock pin (13) penetrates through the two lock pin through holes simultaneously.

4. The handrail lifting mechanism of claim 2, wherein: the handrail framework comprises a handrail supporting plate (3) which is horizontally arranged, an inner sleeve (4) is connected below the handrail supporting plate (3), an outer sleeve (6) is sleeved outside the inner sleeve (4), and the upper end of the outer sleeve (6) extends outwards and upwards to horizontally surround the handrail supporting plate (3) so as to form a handrail shell (5);

the outer sleeve (6) is sleeved outside the armrest arm (15), and the inner sleeve (4) is inserted into the accommodating cavity.

5. The handrail lifting mechanism of claim 4, wherein: the lock rod assembly comprises a connecting rod (11) vertically arranged in the inner sleeve (4), the middle of the connecting rod (11) is connected with the inner sleeve (4) through a connecting rod rotating shaft (12) horizontally arranged, the lower end of the connecting rod (11) is provided with the lock pin (13), and the upper end of the connecting rod (11) is provided with a plug-in connector (11 a);

the locking rod assembly further comprises a bent shifting rod (9), a button rotating shaft (10) penetrates through a bent part of the bent shifting rod (9), the button rotating shaft (10) is arranged in parallel with the connecting rod rotating shaft (12), and the button rotating shaft (10) is fixedly connected with the handrail supporting plate (3);

both ends of the bent deflector rod (9) extend downwards, one end of the bent deflector rod (9) freely penetrates into the inner sleeve (4), a socket (9a) is arranged corresponding to the connecting rod (11), and the plug-in connector (11a) is inserted into the socket (9 a);

the other end of the bending deflector rod (9) is fixedly connected with the unlocking rod (7 a).

6. The handrail lifting mechanism of claim 4, wherein: the extension end of the unlocking rod (7a) penetrates out of the lower surface of the armrest shell (5), and the extension end of the unlocking rod (7a) is provided with a button (7);

the elastic reset piece (8) is a pressure spring, one end of the pressure spring is inserted into the button (7), and the other end of the pressure spring abuts against the handrail supporting plate (3).