CN212415260U

CN212415260U - Chair and chair armrest capable of being used for mounting backrest thereof

Info

Publication number: CN212415260U
Application number: CN202020136317.9U
Authority: CN
Inventors: 艾路
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-01-29
Anticipated expiration: 2030-01-21

Abstract

The utility model discloses a chair armrest which can be used for installing a backrest, comprising a fixed part and a sliding part, wherein the sliding part can slide back and forth on the fixed part; the fixed part comprises an upper mounting part for mounting the sliding part and a first hinge part which is connected with the upper mounting part and is used for being rotatably connected with the backrest; the sliding member has a second hinge portion for pivotal connection to the backrest, the second hinge portion being located above the first hinge portion. The utility model also discloses a chair of adopting above-mentioned handrail. The utility model discloses, make the back rely on the handrail to install completely, need not to consider and the relation of connection or the cooperation relation of all the other parts of the chair except the handrail, also need not to adopt extra spare part to install the back, be favorable to improving the packaging efficiency of whole chair and the industrial manufacturing level of chair, be favorable to reduce cost, the slip around sliding part can lean on human back and then drive the completion from the power of lying to the back production, and has convenient operation, advantage convenient to use.

Description

Chair and chair armrest capable of being used for mounting backrest thereof

Technical Field

The utility model relates to a chair field, more specifically say and relate to a chair and can be used to install chair handrail of back thereof.

Background

As a necessary tool for office work, a chair is generally provided with armrests and a backrest which can be turned backwards to adjust the angle so as to improve the effects of leisure and rest. Traditional chair, only be for rotating the relation of connection between handrail and back, couple together the back at the handrail with back and seat support, still must set up in the back bottom such as adaptor such as L type iron sheet in order to be connected in the tray and the back of cushion bottom, and let L type iron sheet overturn backward and then realize the back and overturn backward through adjusting the structure, make the structure of whole chair complicated, the installation is inconvenient, chair packaging efficiency is low, for a chair that has seat adjustment mechanism that CN201510485144.5 announced as the application number.

SUMMERY OF THE UTILITY MODEL

The weak point to prior art, the utility model provides a can be used to install the chair handrail of back for the back relies on the handrail completely to install, need not to consider and the relation of connection or the cooperation of all the other parts of chair except the handrail, also need not to adopt extra spare part to install the back, be favorable to improving the packaging efficiency of whole chair and the industrial manufacturing level of chair, be favorable to reduce cost, and in this handrail, the slip around sliding part can lean on human back from then lie and drive the completion to the power that the back produced, and the chair has convenient operation, the advantage of convenient to use.

A chair armrest for mounting a backrest comprises a fixed part and a sliding part connected with the fixed part in a sliding way, wherein the sliding part can slide back and forth on the fixed part; the fixed part comprises an upper mounting part for mounting the sliding part and a first hinge part which is connected with the upper mounting part and is used for being rotatably connected with the backrest;

the sliding member has a second hinge portion for pivotal connection to the backrest, the second hinge portion being located above the first hinge portion.

The armrest in the technical scheme can control the adjustment of the angle of the backrest by the front-back sliding of the sliding part after the backrest is installed, the armrest can enable the backrest to be installed completely by relying on the armrest, the connection relation or the matching relation with other parts of the chair except the armrest is not required to be considered, the backrest is installed without adopting additional parts, the assembly efficiency of the whole chair and the industrial manufacturing level of the chair are favorably improved, the cost is favorably reduced, in the armrest, the front-back sliding of the sliding part can be completed by the driving of the force generated by the backrest by the back of a human body after lying, and the armrest has the advantages of convenience in operation and convenience in use.

Preferably, the side surface of the same side of the first hinge part and the second hinge part is provided with a hinge hole. The same side position of hinge hole is arranged, and the installation back of being further convenient for advances one and improves chair packaging efficiency.

Preferably, the top of the first hinge is provided with a tightening part for tightening the second hinge. When the sliding component moves backwards to control the backrest to rotate, the second hinge part is jacked up and tightened, and the supporting effect on the second hinge part is always kept, so that the whole armrest has better structural strength and stability.

Preferably, the second hinge part has a guide arc surface interacting with the tightening part. The operating performance of the sliding component is improved.

Preferably, the fixing member further includes a seat connecting portion connected to the first hinge portion, and a connecting portion connecting the seat connecting portion and the upper mounting portion, the first hinge portion, the seat connecting portion, and the connecting portion are integrally formed into an integral structure. The handrail has the advantages of good overall structure strength, simple structure, convenient manufacture and low manufacturing cost.

Preferably, the sliding part is provided with a front sliding groove and a rear sliding groove, the fixed part is provided with a front sliding rod penetrating through the front sliding groove, the fixed part is further provided with a locking rod penetrating through the locking block arranged at the top of the rear sliding groove and capable of moving up and down, and a plurality of locking grooves matched with the locking block are formed in the side groove wall of the rear sliding groove. The two sliding grooves which are distributed in the front and back are adopted, namely the front sliding groove and the back sliding groove, so that a reinforced part is arranged between the two sliding grooves, the integral structural strength of the sliding part is better, the service life can be properly prolonged, the front sliding rod is matched with the front sliding groove to play a role in guiding, the locking rod is matched with the back sliding groove to play a role in auxiliary guiding, the guiding effect is good, the sliding is smooth, and the adjustment is more convenient; the locking block is connected to the locking rod, the locking groove is formed in the side groove wall of the rear sliding groove, after the locking block exits from the locking groove, the sliding component moves backwards under the action of the backrest, the locking block slides on the rear sliding groove, and when the locking block moves to the position above the next locking groove, the locking block automatically falls into the locking groove under the action of self gravity, so that the locking block is aligned to the locking groove more easily, and the adjustment operation of a user is further facilitated; during the concrete adjustment, upwards press the locking lever, upwards lift the locking lever and make the latch segment withdraw from the locked groove, then sliding part backward motion, when the latch segment moved to next locked groove top position, the latch segment dropped to the locked groove automatically under self action of gravity, realized sliding part's fixed.

Preferably, the top of the front sliding rod is provided with an upper limiting block for preventing the front sliding rod from slipping out of the front sliding chute.

Preferably, the locking rod passes through the upper mounting part downwards, and the locking rod is provided with a lower limiting part which is positioned below the sliding part and used for preventing the locking rod from sliding out of the rear sliding groove upwards. The locking lever is worn out downwards from the upper installation part, so that a user can conveniently lift the locking lever by adopting a finger upward pressing mode when sitting on the chair, and the adjustment is further convenient.

Preferably, the armrest further comprises a reset structure for resetting the slide member after the rearward movement. Through the reset structure, when the lock rod is lifted, the sliding component and the backrest which is rotationally connected with the sliding component can be automatically reset, and the manipulation performance of the handrail and the experience of a user are further improved.

Preferably, the reset structure includes a first spring mounting post disposed on the fixing member, a second spring mounting post disposed on the sliding member, and a reset spring connected to the first spring mounting post and the second spring mounting post.

Preferably, the first spring mounting column is disposed at the top of the fixed member, the bottom of the sliding member is provided with a mounting groove facing the fixed member, and the second spring mounting column is disposed in the mounting groove. This setting can hide first spring erection post, second spring erection post and reset spring, and is safe and pleasing to the eye.

Preferably, the mounting groove is connected with a guide groove matched with the first spring mounting column. On one hand, the sliding efficiency of the sliding part is improved, on the other hand, the stress of the front sliding rod and the lock rod can be properly shared, and the service life of the handrail is ensured.

Preferably, the locking block and the locking rod are connected into a whole.

Preferably, the sliding member is further provided with an armrest cover plate for covering the sliding member.

The utility model also discloses a chair, including seat support, back and handrail, the handrail be as in above-mentioned technical scheme the handrail. The chair in the technical proposal can lean on the back of the human body and then lie to drive the sliding part to slide by the force generated by the backrest, and controls the adjustment of the angle of the backrest by the fore-and-aft sliding of the sliding part, has the advantages of convenient operation and convenient use,

and the armrests can enable the backrest to be completely installed by relying on the armrests, the connection relation or the matching relation between the backrest and other parts of the chair except the armrests does not need to be considered, additional parts are not needed to be adopted to install the backrest, the assembly efficiency of the whole chair and the industrial manufacturing level of the chair are favorably improved, and the cost is favorably reduced.

To sum up, the utility model discloses following beneficial effect has:

the backrest is completely installed by relying on the armrests, the connection relation or the matching relation with other parts of the chair except the armrests is not needed to be considered, the backrest is also installed without adopting additional parts, the assembly efficiency of the whole chair and the industrial manufacturing level of the chair are favorably improved, the cost is favorably reduced, in the armrests, the front and back sliding of the sliding part can be completed by depending on the force generated by the back of a human body after lying on the backrest, and the backrest has the advantages of convenience in operation and convenience in use.

Drawings

FIG. 1 is a schematic view of the structure of a handrail in embodiment 1;

fig. 2 is an exploded view of the armrest at a first viewing angle;

FIG. 3 is an exploded view of the armrest at a second viewing angle;

FIG. 4 is a schematic view of the structure of a sliding member;

fig. 5 is a reference view of the chair assembled with the armrests.

Detailed Description

The present invention will be further explained by the following embodiments with reference to the attached drawings.

Example 1: as shown in fig. 1-5, an armrest for a chair, which can be used for mounting a backrest, comprises a fixed member 1, a sliding member 2 slidably connected to the fixed member 1, the sliding member 2 being used for placing a user's hand, the sliding member 2 being slidable back and forth on the fixed member 1; the fixed component 1 comprises an upper mounting part 11 for mounting the sliding component 2, and a first hinge part 12 connected with the upper mounting part 11 and used for being rotatably connected with the backrest, wherein the first hinge part 12 can be connected with the rear end of the upper mounting part 11 but is not limited; the sliding member 2 has a second hinge portion 200 for pivotal connection to the backrest, the second hinge portion 200 being located above the first hinge portion 12. The armrest in the embodiment can control the adjustment of the angle of the backrest by the front-back sliding of the sliding component after the backrest is installed, the armrest can enable the backrest to be installed completely by relying on the armrest, the connection relation or the matching relation with other components of the chair except the armrest does not need to be considered, the backrest is installed without adopting additional components, the assembly efficiency of the whole chair and the industrial manufacturing level of the chair are favorably improved, the cost is favorably reduced, in the armrest, the front-back sliding of the sliding component can be completed by driving the human back to lean against the backrest by the force generated by lying, and the armrest has the advantages of convenience in operation and convenience in use.

The side surfaces of the same side of the first hinge part 12 and the second hinge part 200 are provided with hinge holes. The same side position of hinge hole is arranged, and the installation back of being further convenient for advances one and improves chair packaging efficiency.

The top of the first hinge portion 12 is provided with a tightly-pushing portion 120 for tightly pushing the second hinge portion 200, so that the sliding component 2 pushes up and tightly pushes the second hinge portion 200 when the backward movement controls the backrest to rotate, and the supporting function of the second hinge portion 200 is always kept, so that the whole armrest has better structural strength and stability. The second hinge portion 200 has a guide curved surface 2001 which interacts with the tightening portion 120, which is advantageous for improving the handling performance of the sliding member 2.

The fixing part 1 further comprises a seat connecting part 13 connected with the first hinge part 12 and a connecting part 14 connecting the seat connecting part 13 and the upper mounting part 11, the first hinge part 12, the seat connecting part 13 and the connecting part 14 are connected into an integral structure, so that the armrest is good in overall structural strength, simple in structure, convenient to manufacture and low in manufacturing cost.

This handrail accessible guide structure leads sliding part 2, and guide structure can be common spout slider structure, and the spout slider sets up on sliding part 2 and fixed part 1 face each other, not illustrated in the drawing, and guide structure also can be as setting up in this embodiment in the drawing, promptly: slide block 2 is last to have seted up preceding spout 21 and back spout 22, be provided with on the fixed part 1 and pass preceding slide bar 23 of preceding spout 21, still be provided with on the fixed part 1 and pass the top of back spout 22 has latch segment 25 and locking lever 24 that can up-and-down motion, and preceding slide bar 23, locking lever 24 all can but not be injectd to the column structure, be provided with on the side cell wall of back spout 22 be used for with a plurality of locked grooves 26 of latch segment 25 matched with. The two sliding grooves which are distributed front and back, namely the front sliding groove 21 and the back sliding groove 22, are adopted, so that a reinforced part is arranged between the two sliding grooves of the sliding component 2, the integral structural strength of the sliding component 2 is better, the service life can be properly prolonged, the front sliding rod 23 is matched with the front sliding groove 21 to play a role in guiding, the locking rod 24 is matched with the back sliding groove 22 to play a role in auxiliary guiding, the guiding effect is good, the sliding is smooth, and the adjustment is more convenient; connect latch segment 25 on locking lever 24, the locked groove 26 sets up in the side wall of back spout 22, withdraw from the back when latch segment 25 from locked groove 26, sliding member 2 is backward motion under the effect of back, latch segment 25 slides on back spout 22, when latch segment 25 removes to next locked groove 26 top position, latch segment 25 drops to the locked groove 26 automatically under self action of gravity in, it is easier to make latch segment 25 aim at locked groove 26, further the user of being convenient for adjusts the operation. During the specific adjustment, the lock rod 24 is pressed upwards, the lock rod 24 is lifted upwards, the locking block 25 is made to withdraw from the locking groove 26, then the sliding component 2 moves backwards, and when the locking block 25 moves to the position above the next locking groove 26, the locking block 25 automatically drops into the locking groove 26 under the action of self gravity, so that the sliding component is fixed.

Preferably, the top of the front sliding rod 23 is provided with an upper limit block 27 for preventing the front sliding rod 23 from slipping out of the front sliding chute 21.

Preferably, the lock rod 24 passes through the upper mounting portion 11 downward, so that a user can conveniently lift the lock rod 24 by pressing the lock rod 24 upward with a finger when sitting on the chair, and further adjustment is convenient, and the lock rod 24 is provided with a lower limit portion 28 located below the sliding member 2 and used for preventing the lock rod 24 from sliding out of the rear sliding groove 22 upward. The bottom of the lock rod 24 is connected with a hand pressing part 241, and the upper mounting part 11 is provided with a guide sleeve 111 matched with the pressing part 241.

The handrail further comprises a resetting structure, the resetting structure is used for resetting the sliding component 2 after moving backwards, the resetting structure comprises a first spring mounting column 31 arranged on the fixed component 1, a second spring mounting column 32 arranged on the sliding component 2 and a resetting spring 33 connected with the first spring mounting column 31 and the second spring mounting column 32, when the lock rod 24 is lifted up, the sliding component 2 and a backrest rotatably connected with the sliding component 2 can automatically reset through the resetting structure, and the manipulation performance of the handrail and the experience of a user are further improved, in the embodiment, the number of the resetting spring 33, the first spring mounting column 31 and the second spring mounting column 32 is 2. The first spring mounting column 31 is arranged at the top of the fixed part 1, the bottom of the sliding part 2 is provided with a mounting groove 20 facing the fixed part 1, the second spring mounting column 32 is arranged in the mounting groove 20, the first spring mounting column 31, the second spring mounting column 32 and the return spring 33 can be hidden, and the safety and the attractiveness are achieved.

Preferably, the mounting groove 20 is connected with a guide groove 4 matched with the first spring mounting post 31, on one hand, the sliding efficiency of the sliding part 2 is improved, and on the other hand, the stress of the front sliding rod 23 and the lock rod 24 can be properly shared, so that the service life of the handrail is ensured.

Preferably, the locking block 25 and the locking bar 24 are integrally connected.

Preferably, the sliding member is further provided with an armrest cover plate 0 for covering the sliding member. The armrest cover plate 0 may be, but is not limited to, fastened, bonded, and other conventional connecting methods.

Example 2: a chair comprising a seat, a backrest and armrests as described in embodiment 1.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. A chair armrest which can be used for installing a backrest is characterized by comprising a fixed part (1) and a sliding part (2) which is connected with the fixed part (1) in a sliding way, wherein the sliding part (2) can slide back and forth on the fixed part (1);

the fixed part (1) comprises an upper mounting part (11) for mounting the sliding part (2) and a first hinge part (12) which is connected with the upper mounting part (11) and is used for being rotatably connected with a backrest;

the sliding part (2) is provided with a second hinge part (200) for being rotatably connected with a backrest, and the second hinge part (200) is positioned above the first hinge part (12).

2. The armrest for a chair, which can be used for mounting a backrest according to claim 1, is characterized in that the side surfaces of the same side of the first hinge part (12) and the second hinge part (200) are provided with hinge holes.

3. The armrest of a chair for mounting a backrest as claimed in claim 1, wherein the top of the first hinge portion (12) is provided with a tightening portion (120) for tightening the second hinge portion (200).

4. A chair armrest as claimed in claim 3, wherein said second hinge portion (200) has a guide curved surface (2001) which interacts with said tightening portion (120).

5. The chair armrest for mounting a backrest as claimed in claim 1, wherein the fixing member (1) further comprises a seat connecting portion (13) connected to the first hinge portion (12), and a connecting portion (14) connecting the seat connecting portion (13) and the upper mounting portion (11), wherein the upper mounting portion (11), the first hinge portion (12), the seat connecting portion (13), and the connecting portion (14) are integrally formed into a single structure.

6. The chair armrest capable of being used for mounting the backrest according to claim 1, wherein a front sliding groove (21) and a rear sliding groove (22) are formed in the sliding component (2), a front sliding rod (23) penetrating through the front sliding groove (21) is arranged on the fixing component (1), a locking rod (24) penetrating through the top of the rear sliding groove (22), provided with a locking block (25) and capable of moving up and down is further arranged on the fixing component (1), and a plurality of locking grooves (26) matched with the locking block (25) are formed in side groove walls of the rear sliding groove (22).

7. Chair armrest as claimed in claim 6, characterized in that the top of said front sliding bar (23) is provided with an upper limit block (27) for preventing the front sliding bar (23) from sliding out of the front runner (21).

8. The chair armrest capable of being used for mounting a backrest according to claim 6, wherein the locking rod (24) passes through the upper mounting part (11) downwards, and a lower limiting part (28) which is positioned below the sliding part (2) and is used for preventing the locking rod (24) from sliding out of the rear sliding groove (22) upwards is arranged on the locking rod (24).

9. A chair armrest for mounting a backrest as claimed in claim 1, wherein the armrest further comprises a return structure for returning the slide member (2) after the rearward movement; the reset structure comprises a first spring mounting column (31) arranged on the fixed part (1), a second spring mounting column (32) arranged on the sliding part (2), and a reset spring (33) connected to the first spring mounting column (31) and the second spring mounting column (32); the first spring mounting column (31) is arranged at the top of the fixed part (1), the bottom of the sliding part (2) is provided with a mounting groove (20) facing the fixed part (1), and the second spring mounting column (32) is arranged in the mounting groove (20).

10. A chair comprising a seat, a backrest and armrests, wherein the armrests are as claimed in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9.