CN220494639U - Armrest folding device of armchair - Google Patents

Abstract

The utility model discloses an armrest folding device of an armchair, which relates to the field of armchairs, wherein one ends of a first supporting seat rod and a second supporting seat rod are respectively connected with a first limiting seat and a second limiting seat, the first limiting seat and the second limiting seat are respectively arranged on a rear left chair rod and a rear right chair rod, the other ends of the first supporting seat rod and the second supporting seat rod are respectively provided with an arc-shaped hook piece, the arc-shaped hook pieces are respectively clamped in U-shaped clamping grooves of movable seats on a front left chair rod and a front right chair rod through the arc-shaped hook pieces, and folding armrests are respectively arranged on the left side and the right side of the front left chair rod, the front right chair rod, the rear left chair rod and the rear right chair rod. Its structural design is reasonable, installs simply, uses and send out the bar, and the handrail is collapsible, has saved accommodation space, portable and packing, has reduced cost of transportation, through setting up arc couple spare at the front end that supports the pole of sitting, can hang after conveniently accomodating and put, the couple sets up downwards when opening, under the condition that does not influence sitting, and the shank comfort level after the arc design more laminates the seat.

Description

Armrest folding device of armchair

Technical field:

the utility model relates to an armrest folding device of an armchair, belonging to the technical field of armchairs.

The background technology is as follows:

the armrests of chairs are usually fixed to the chair by brackets, which mainly give the person the ability to place his arms for comfort.

At present, armrests of armrests on the market cannot be folded, when the armrests need to be folded, the armrests cannot be folded, space is occupied, people cannot store the armrests conveniently, and inconvenience is brought to users.

The utility model comprises the following steps:

the technical problem to be solved by the utility model is to provide an armrest folding device of an armchair.

The utility model relates to an armrest folding device of an armrest chair, which comprises a front left chair rod, a front right chair rod, a rear left chair rod, a rear right chair rod, a movable seat, a rod seat, an X-shaped folding rod I, an X-shaped folding rod II, an X-shaped folding rod III, an X-shaped folding rod IV, a supporting seat rod I, a supporting seat rod II, a limiting seat I, a limiting seat II, an arc-shaped hook piece and a folding armrest, wherein the upper end and the lower end of the front left chair rod, the front right chair rod, the rear left chair rod and the rear right chair rod are respectively provided with the movable seat, the bottom ends of the movable seats are respectively fixed with the rod seats, the first X-shaped folding rod, the second X-shaped folding rod, the third X-shaped folding rod and the fourth X-shaped folding rod are respectively arranged on the movable seats at the upper end and the lower end of the front left chair rod, the front right chair rod, the rear left chair rod and the rear right chair rod through rivets, one ends of the first supporting seat rod and the second supporting seat rod are respectively connected with the first limiting seat and the second limiting seat, the first limiting seat and the second limiting seat are respectively arranged on the rear left chair rod and the rear right chair rod, the other ends of the first supporting seat rod and the second supporting seat rod are respectively provided with an arc-shaped hook piece, and the arc-shaped hook pieces are respectively clamped in U-shaped clamping grooves of the movable seats on the front left chair rod and the front right chair rod, and folding armrests are respectively arranged on the left side and the right side of the front left chair rod, the rear left chair rod and the rear right chair rod.

Preferably, the folding handrail comprises a front handrail rod, a rear handrail rod, a front handrail supporting rod, a rear handrail supporting rod, a movable folding joint and a connecting sheet, wherein the lower ends of the front handrail rod and the rear handrail rod are respectively fixed with the front handrail supporting rod and the rear handrail supporting rod, one end of the rear handrail rod is provided with two guide wheel seats, the guide wheel seats are arranged opposite to a guide sheet I and a guide sheet II at one end of the front handrail supporting rod and the rear handrail supporting rod, the guide wheel seats are movable forwards and backwards in a left-right limiting manner through the movable folding joint, and one end of the front handrail supporting rod is provided with the connecting sheet.

Preferably, the movable folding joint is composed of a central guide seat, a guide wheel, a limiting wheel, a connecting rod, a positioning screw rod I, a positioning screw rod II, a connecting guide pin and a lock seat, wherein one side of the central guide seat is provided with the guide wheel, the other side of the central guide seat is provided with the limiting wheel, the middle part of the central guide seat is provided with a central hole and is arranged in the first guide plate and the second guide plate, the connecting rod is arranged in the central hole, two ends of the connecting rod respectively penetrate through central through holes of the first guide plate and the second guide plate and are fixedly connected with the guide wheel and the limiting wheel, the guide wheel and the limiting wheel are respectively arranged in two guide wheel seats at one end of a rear grab bar, the guide wheel seats are respectively movably folded or unfolded in the front and rear of the guide wheel and the limiting wheel, two positioning holes are respectively arranged on the central guide seat and the guide wheel, the positioning screw rod I and the positioning screw rod II are respectively arranged in the two positioning holes and are connected with positioning connecting holes on the first guide plate and the second guide plate, a guide connecting pin through hole is arranged on the central guide seat, a connecting pin is arranged in the connecting hole, the connecting guide wheel seat is respectively arranged in the connecting guide wheel seat, and the guide seat is arranged in the guide bar and the rear grab bar, and the lower guide seat is arranged in the arc-shaped guide seat.

Preferably, the front handrail rod is provided with an arc-shaped lock tongue which is clamped in a lock hole on the front handrail support rod.

Preferably, the lower parts of the two folding handrails are respectively provided with a reinforcing supporting rod, one end of each reinforcing supporting rod is fixed on the two folding handrails, the other ends of the reinforcing supporting rods are fixed on the first supporting seat rod and the second supporting seat rod, and the reinforcing supporting rods have supporting function when being opened and limited.

Preferably, one end of the arc-shaped limiting groove is provided with an opening limiting point, and the other end of the arc-shaped limiting groove is provided with a closing limiting point.

The utility model has the beneficial effects that: its structural design is reasonable, installs simply, uses and send out the bar, and the handrail is collapsible, has saved accommodation space, portable and packing, has reduced cost of transportation, through setting up arc couple spare at the front end that supports the pole of sitting, can hang after conveniently accomodating and put, the couple sets up downwards when opening, under the condition that does not influence sitting, and the shank comfort level after the arc design more laminates the seat.

Description of the drawings:

for ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.

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

FIG. 2 is a rear view of the present utility model;

FIG. 3 is a schematic view of a folding handrail according to the present utility model;

FIG. 4 is an exploded view of the folding handrail of the present utility model;

FIG. 5 is a schematic view of the folded handrail of the present utility model;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is an exploded view of the movable folding joint of the present utility model;

FIG. 8 is a schematic view of the structure of the center guide holder according to the present utility model;

FIG. 9 is a schematic view of the installation structure of the first support seat post and the second support seat post according to the present utility model;

FIG. 10 is an exploded view of FIG. 9;

fig. 11 is a schematic view of the folded structure of the present utility model.

1-front left chair bar; 2-front right chair bar; 3-a rear left chair bar; 4-rear right chair bar; 5-a movable seat; 501-U-shaped clamping grooves; 6, a rod seat; 7-X-shaped folding rod I; 8-X-shaped folding rod II; a 9-X-shaped folding rod III; a 10-X-shaped folding rod IV; 11-supporting a first sitting rod; 12-supporting a second sitting rod; 13-a first limiting seat; 14-a second limiting seat; 15-arc-shaped hook pieces; 16-folding the handrail; 1601-front grab rail; 16011-arc locking bolt; 1602-rear grab bar; 16021-guide wheel seats; 1603-front armrest support bar; 16031-guide tab one; 16032-keyhole; 1604-a rear armrest support bar; 16041-guide plate two; 16042-arc limiting groove; 160421-open restriction site; 160422-closing restriction site; 1605-active folding joints; 16051-center guide holder; 160511-central aperture; 160512-locating holes; 160513-guide connection pin through holes; 16052-guide wheels; 16053-limit wheels; 16054-connecting rods; 16055-positioning screw one; 16056—set screw two; 16057-connecting guide pins; 16058-lock base; 1606-connecting piece; 1607-a central through hole; 1608—positioning the connection holes; 17-reinforcing the support bar.

The specific embodiment is as follows:

as shown in fig. 1 to 11, the present embodiment adopts the following technical scheme: the chair comprises a front left chair rod 1, a front right chair rod 2, a rear left chair rod 3, a rear right chair rod 4, a movable seat 5, a rod seat 6, an X-shaped folding rod I7, an X-shaped folding rod II 8, an X-shaped folding rod III 9, an X-shaped folding rod IV 10, a supporting seat rod I11, a supporting seat rod II 12, a limiting seat I13, a limiting seat II 14, an arc-shaped hook piece 15 and a folding handrail 16, wherein the upper end and the lower end of the front left chair rod 1, the front right chair rod 2, the rear left chair rod 3 and the rear right chair rod 4 are respectively provided with the movable seat 5, the bottom ends of the front left chair rod 1, the front right chair rod 2, the rear left chair rod 3 and the rear right chair rod 4 are respectively fixed with the rod seat 6, the X-shaped folding rod I7, the X-shaped folding rod II 8, the X-shaped folding rod III 9 and the X-shaped folding rod IV 10 are respectively arranged on the movable seat 5 at the upper end and lower end of the front left chair rod 1, the rear left chair rod 3 and the rear right chair rod 4 through rivets, one end of the first supporting seat rod 11 and one end of the second supporting seat rod 12 are respectively connected with the first limiting seat 13 and the second limiting seat 14, the first limiting seat 13 and the second limiting seat 14 are respectively arranged on the rear left seat rod 3 and the rear right seat rod 4, the other ends of the first supporting seat rod 11 and the second supporting seat rod 12 are respectively provided with arc-shaped hook pieces 15, the arc-shaped hook pieces 15 are respectively clamped in U-shaped clamping grooves 501 of the movable seats 5 on the front left seat rod 1 and the front right seat rod 2, and folding armrests 16 are respectively arranged on the left side and the right side of the front left seat rod 1, the front right seat rod 2, the rear left seat rod 3 and the rear right seat rod 4.

The folding handrail 16 is composed of a front handrail bar 1601, a rear handrail bar 1602, a front handrail bar 1603, a rear handrail bar 1604, a movable folding joint 1605 and a connecting sheet 1606, wherein the front handrail bar 1603 and the rear handrail bar 1604 are respectively fixed at the lower ends of the front handrail bar 1601 and the rear handrail bar 1602, wherein two guide wheel seats 16021 are provided at one end of the rear handrail bar 1602, and are arranged opposite to a first guide sheet 16031 and a second guide sheet 16041 at one end of the front handrail bar 1603 and the rear handrail bar 1604, and are movable back and forth in a left-right limit manner by the movable folding joint 1605, and the connecting sheet 1606 is provided at one end of the front handrail bar 1603.

The movable folding joint 1605 is composed of a central guide seat 16051, a guide wheel 16052, a limit wheel 16053, a connecting rod 16054, a positioning screw 16055, a positioning screw 16056 II, a connecting guide pin 16057 and a lock seat 16058, wherein one side of the central guide seat 16051 is provided with the guide wheel 16052, the other side of the central guide seat 16051 is provided with the limit wheel 16053, the middle part of the central guide seat 16051 is provided with a central hole 160511 and is arranged in the guide plate I16031 and the guide plate II 16041, the connecting rod 16054 is arranged in the central hole 160511, two ends of the connecting rod 16054 respectively penetrate through a central through hole 1607 of the guide plate I16031 and the guide plate II 16041 and are fixedly connected with the guide wheel 16052 and the limit wheel 16053, the guide pin 16052 and the limit wheel 16053 are respectively arranged in the two guide seats 16021 of one end of the rear grab bar, the guide wheel 16021 is respectively arranged in the guide wheel seat 16052 and the limit wheel 16053, the guide pin 16021 is folded or unfolded, wherein the central guide seat 16051 and the guide wheel 52 are respectively provided with two positioning holes 160512, and the guide pin 160512 are respectively arranged in the guide seat 16052 and the guide pin 16052 are respectively opened, and the guide pin hole 16055 is arranged in the guide seat 1602 and the guide pin seat 1602 is connected with the guide pin II guide pin 41.

The front armrest lever 1601 is provided with an arc-shaped lock tongue 16011 and is engaged in a lock hole 16032 on the front armrest support lever 1603.

The reinforcing support rods 17 are arranged below the two folding armrests 16, one ends of the reinforcing support rods 17 are fixed on the two folding armrests 16, the other ends of the reinforcing support rods 17 are fixed on the first supporting seat rod 11 and the second supporting seat rod 12, and the reinforcing support rods 17 have supporting function when being opened and limited.

One end of the arc-shaped limiting groove 16042 is provided with an opening limiting point 160421, and the other end of the arc-shaped limiting groove 16042 is provided with a closing limiting point 160422.

The principle of opening the armrest in this embodiment: by pressing the front rest bar 1601 and the rear rest bar 1602, the front rest bar 1601 and the rear rest bar 1602 are opened outwards, the guide wheel seats 16021 on the rear rest bar 1602 are opened movably along the guide wheels 16052 and the limit wheels 16053 on the left and right sides, the first guide piece 16031 and the second guide piece 16041 on one end of the front rest support bar 1603 and the rear rest support bar 1604 are opened movably at the same time, the connecting guide pin 16057 on the center guide seat 16051 is opened along the guide wheel seats 16021 on the rear rest bar 1602 and the arc limit grooves 16042 on the second guide piece 16041 on the rear rest support bar 1604 to reach the opening limit points 160421, the rest plates are opened in a straight shape, and simultaneously the arc lock tongue 16011 on the front rest bar 1601 is opened and locked in the lock hole 16032 on the front rest support bar 1603 relatively clamped, and the upper and lower ends of the reinforcing support bar 17 are supported and limited by the folding support seat bar 16 and the reinforcing support bar 17 on the support seat bar 11 and the support seat bar 12; when the synchronous folding grab rail is unfolded, the X-shaped folding rod I7, the X-shaped folding rod II 8, the X-shaped folding rod III 9 and the X-shaped folding rod IV 10 are downwards moved to be synchronously unfolded.

Folding principle of armrests in this embodiment: by lifting the folding grab bars, the front grab bar 1601 and the rear grab bar 1602 are folded inwards, the guide wheel seats 16021 on the rear grab bar 1602 are folded movably along the guide wheels 16052 and the limit wheels 16053 on the left and right sides, the first guide piece 16031 and the second guide piece 16041 on one end of the front handrail support bar 1603 and the rear handrail support bar 1604 are folded movably at the same time, the connecting guide pin 16057 on the center guide seat 16051 is opened along the guide wheel seats 16021 on the rear grab bar 1602 and the arc limit grooves 16042 on the second guide piece 16041 on the rear handrail support bar 1604 to reach the closing limit points 160422, and the handrail plates are closed in an inverted V shape; when the synchronous folding grab bars are unfolded, the X-shaped folding bars I7, the X-shaped folding bars II 8, the X-shaped folding bars III 9 and the X-shaped folding bars IV 10 are folded upwards and closed.

This concrete embodiment structural design is reasonable, installs simply, uses and send out the bar, and the handrail is collapsible, has saved accommodation space, portable and packing, has reduced cost of transportation, through setting up arc couple spare at the front end that supports the pole of sitting, can hang after conveniently accomodating and put, the couple sets up downwards when opening, under the condition that does not influence sitting, the shank comfort level after the arc design more laminating sits.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be appreciated by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described in the specification merely illustrative of the principles of the present utility model, and various modifications can be made without departing from the spirit and scope of the utility model

Variations and modifications are intended to fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. An armrest folding device of an armchair, characterized in that: the novel seat comprises a front left chair rod (1), a front right chair rod (2), a rear left chair rod (3), a rear right chair rod (4), a movable seat (5), a rod seat (6), an X-shaped folding rod I (7), an X-shaped folding rod II (8), an X-shaped folding rod III (9), an X-shaped folding rod IV (10), a supporting seat rod I (11), a supporting seat rod II (12), a limiting seat I (13), a limiting seat II (14), an arc-shaped hook piece (15), folding armrests (16), wherein the upper and lower ends of the front left chair rod (1), the front right chair rod (2), the rear left chair rod (3) and the rear right chair rod (4) are respectively provided with the movable seat (5), the rod seat (6) is fixed at the bottom end of the movable seat, the X-shaped folding rod I (7), the X-shaped folding rod II (8), the X-shaped folding rod III (9) and the X-shaped folding rod IV (10) are respectively arranged on the front left chair rod (1), the front right chair rod (2), the rear left chair rod (3) and the rear right chair rod (4) through rivets, the movable seat I (11) and the limiting seat II (14) are respectively arranged at the two ends of the front left chair rod (3) and the limiting seat (4), the other ends of the first supporting seat rod (11) and the second supporting seat rod (12) are respectively provided with an arc-shaped hook piece (15), and the arc-shaped hook pieces (15) are respectively clamped in U-shaped clamping grooves (501) of the movable seats (5) on the front left chair rod (1) and the front right chair rod (2), and folding armrests (16) are respectively arranged on the left side and the right side of the front left chair rod (1), the front right chair rod (2), the left back chair rod (3) and the right back chair rod (4).

2. An armrest folding device of an armchair according to claim 1, characterized in that: the folding handrail (16) is composed of a front handrail rod (1601), a rear handrail rod (1602), a front handrail supporting rod (1603), a rear handrail supporting rod (1604), a movable folding joint (1605) and a connecting sheet (1606), wherein the front handrail supporting rod (1603) and the rear handrail supporting rod (1604) are respectively fixed at the lower ends of the front handrail rod (1601) and the rear handrail rod (1602), two guide wheel seats (16021) are arranged at one end of the rear handrail rod (1602), and a first guide sheet (16031) and a second guide sheet (16041) at one end of the front handrail supporting rod (1603) and the rear handrail supporting rod (1604) are oppositely arranged, and are movable front and rear in a left-right limiting mode through the movable folding joint (1605), and the connecting sheet (1606) is arranged at one end of the front handrail supporting rod (1603).

3. An armrest folding device of an armchair according to claim 2, characterized in that: the movable folding joint (1605) consists of a central guide seat (16051), a guide wheel (16052), a limit wheel (16053), a connecting rod (16054), a first positioning screw rod (16055), a second positioning screw rod (16056), a connecting guide pin (16057) and a lock seat (16058), wherein the guide wheel (16052) is arranged on one side of the central guide seat (16051), the limit wheel (16053) is arranged on the other side of the central guide seat (16051), a central hole (160511) is arranged in the middle of the central guide seat (16051), the connecting rod (16054) is arranged in a first guide plate (16031) and a second guide plate (16041), the two ends of the connecting rod (16054) respectively penetrate through the first guide plate (16031) and the second guide plate (16041) and are fixedly connected with the guide wheel (16052) and the limit wheel (16053), the guide wheel (16052) and the limit wheel (16053) are respectively arranged in two guide wheels (21) at one end of the rear guide rod (1602), the first guide plate (16051) and the second guide plate (16041) are respectively connected with the first guide plate (16055) and the second guide plate (16041) and the two guide plates (16041) are respectively arranged on the first guide plate (16052) and the second guide plate (16041) and the two guide plate (16041) are respectively connected with the first guide plate (16052) and the second guide plate (16052) guide plate (guide plate). The center guide seat (16051) is provided with a guide connecting pin through hole (160513), a connecting guide pin (16057) is arranged in the guide connecting pin through hole (160513), the connecting guide pin (16057) is arranged in an arc-shaped limit groove (16042) on a guide wheel seat (16021) of the rear handrail rod (1602) and a guide piece II (16041) of the rear handrail support rod (1604), and a lock seat (16058) is arranged below the center guide seat (16051).

4. An armrest folding device of an armchair according to claim 2, characterized in that: the front handrail rod (1601) is provided with an arc-shaped lock tongue (16011) and is clamped in a lock hole (16032) on the front handrail support rod (1603).

5. An armrest folding device of an armchair according to claim 1, characterized in that: the lower parts of the two folding handrails (16) are respectively provided with a reinforcing supporting rod (17), one end of each reinforcing supporting rod (17) is fixed on the two folding handrails (16), and the other ends of the reinforcing supporting rods (17) are fixed on the first supporting seat rod (11) and the second supporting seat rod (12).

6. A handrail folding device of a armchair according to claim 3, characterized in that: one end of the arc-shaped limiting groove (16042) is provided with an opening limiting point (160421), and the other end of the arc-shaped limiting groove (16042) is provided with a closing limiting point (160422).