CN212630334U

CN212630334U - High folding chair of security

Info

Publication number: CN212630334U
Application number: CN202021413974.XU
Authority: CN
Inventors: 梁宗亮
Original assignee: Zibo Yindu Weiye Kitchen Equipment Co ltd
Current assignee: Zibo Yindu Weiye Kitchen Equipment Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-02
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a high folding chair of security, including the bedplate, the bedplate both ends are rotated and are connected with same preceding supporting leg, the welding of preceding supporting leg one side has two fixed blocks, all rotates on two fixed blocks and is connected with back supporting leg, and two back supporting leg the inner rotates with the bedplate both ends and connects, and preceding supporting leg rotates respectively with back supporting leg inboard and is connected with first branch and second branch, rotates between first branch and the second branch to be connected, has all seted up the thread groove on two back supporting legs, and thread groove threaded connection has the lantern ring, and the welding has the connecting rod on one side of the lantern ring, and the connecting rod is bent the welding and is had the protection post. The utility model discloses in, rotate the connecting rod, under the effect of thread groove for lantern ring, connecting rod and protection post move down, will protect the post and rotate to being close ground position, and rotate to the right side of back supporting leg, when the folding chair emptys backward, the protection post landed and supported, thereby prevented that the folding chair from empting, thereby improved the device's security.

Description

High folding chair of security

Technical Field

The utility model relates to a seat technical field especially relates to a high folding chair of security.

Background

The chair refers to various chairs which are convenient to work in daily work and social activities, office chairs are classified into a narrow sense and a broad sense by office partners, the narrow office chair refers to a backrest chair on which a person sits when working on a desktop in a sitting posture, the broad sense office chair refers to all chairs used in offices, including office chairs, middle class chairs, guest chairs, employee chairs, conference chairs, visitor chairs, training chairs and the like, and the folding chair is a light and foldable chair, is convenient to move, saves space and is popular.

In the use process of the folding chair, because the supporting legs of the folding chair can be movably folded, people sit on the chair, when the folding chair is unintentionally moved greatly, the front and the rear supporting legs are easy to move relatively, so that a user can topple over, and the user can be seriously injured by falling, therefore, the safety performance of the existing folding chair is required to be improved, and the problem is correspondingly improved.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a folding chair with high safety.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high folding chair of security, includes the bedplate, and bedplate both ends symmetry is connected with same preceding supporting leg through the hinge rotation, and the U-shaped is set to preceding supporting leg cross-section, the welding of preceding supporting leg one side has two fixed blocks, all is connected with back supporting leg through the hinge rotation on two fixed blocks, and two back supporting leg the inner passes through the hinge rotation with the bedplate both ends respectively and is connected, and preceding supporting leg is connected with first branch and second branch through the hinge rotation respectively with back supporting leg inboard, rotates through the hinge between first branch and the second branch and connects, has all seted up the thread groove on two back supporting legs, and thread groove threaded connection has the lantern ring, and the welding of lantern ring one side has the connecting rod, and the connecting rod is bent the welding and is had the protection post, is.

Preferably, the buffer mechanism is provided with a sleeve at the bottom of the front support leg, a groove is formed in the sleeve, the front support leg is arranged inside the groove, the mounting block is welded at the bottom of the inner wall of the sleeve, a spring is welded at the top of the mounting block, the top of the spring and the bottom of the front support leg are welded, and a limiting mechanism is arranged in the sleeve.

Preferably, two limiting grooves are symmetrically formed in the inner walls of the two sides of the sleeve of the limiting mechanism, two limiting blocks are symmetrically welded to the two sides of the front supporting leg, the cross sections of the limiting blocks are arranged to be arc-shaped, and the limiting blocks are connected with the limiting grooves in a sliding mode.

Preferably, the inner end of the front supporting leg is provided with a backrest, and the backrest is arranged above the seat plate.

Preferably, the bottoms of the front supporting leg and the rear supporting leg are sleeved with supporting legs.

Preferably, fixed columns are fixed at the inner ends of the front supporting legs through bolts, the two fixed columns are rotatably connected with the same straight shaft through hinges, and the straight shaft and the backrest are fixedly penetrated.

Preferably, one side of the backrest, which is far away from the protection column, is bonded with a plurality of sponge pads which are uniformly distributed up and down, and the sponge pads are provided with a plurality of anti-skid protrusions which are uniformly distributed transversely.

The utility model has the advantages that:

1. be provided with the protection post among the device, during the use, expand folding chair for preceding supporting leg and back supporting leg land and support, rotate the connecting rod, under the effect of thread groove, make lantern ring, connecting rod and protection post remove down, will protect the post and rotate to being close ground position, and rotate to the right side of back supporting leg, when folding chair emptys backward, the support is landed to the protection post, thereby prevent that folding chair from empting, thereby improve the device's security.

2. The device is provided with the spring, and when the user sat on the bedplate, the preceding supporting leg received pressure for spring elastic movement, thereby improved the device's elasticity, improved use comfort then, be provided with stopper and spacing groove, make the spring only receive ascending or decurrent effort, thereby prevent that the spring from taking place to turn round to twist and warp, thereby prolong the life of spring.

3. The device in will lean against and set to and rotate relatively with preceding supporting leg and be connected, sit on the bedplate as the user, when the back leans on tightly, can closely laminate with human back by leaning on, thereby make the user keep the correct position of sitting, when the user lies and leans on, lean on can be in same straight line with preceding supporting leg, thereby improve use comfort, and be provided with a plurality of foam-rubber cushions and non-slip raised, multiplicable and the frictional force at user's back, the health slides down when preventing to lie and lean on, thereby further improve use comfort.

Drawings

Fig. 1 is a schematic view of the overall structure of a folding chair with high safety according to the present invention;

FIG. 2 is a schematic view of the internal structure of a buffering mechanism of a folding chair with high safety according to the present invention;

fig. 3 is a schematic view of a backrest structure of a folding chair with high safety according to embodiment 2 of the present invention.

In the figure: the anti-skid chair comprises a seat plate 1, a front support leg 2, a backrest 3, a fixing block 4, a rear support leg 5, a thread groove 6, a lantern ring 7, a connecting rod 8, a protective column 9, a first support rod 10, a second support rod 11, a support leg 12, a sleeve 13, a groove 14, an installation block 15, a spring 16, a limiting groove 17, a limiting block 18, a fixing column 19, a straight shaft 20, a sponge cushion 21 and an anti-skid bulge 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-2, a folding chair with high safety, including a seat board 1, the symmetry of seat board 1 both ends is connected with same preceding supporting leg 2 through hinge rotation, preceding supporting leg 2 cross-section sets up the U-shaped, 2 one side welding of preceding supporting leg has two fixed blocks 4, all be connected with back supporting leg 5 through hinge rotation on two fixed blocks 4, 5 inner of two back supporting legs are connected through hinge rotation with seat board 1 both ends respectively, preceding supporting

leg

2 and 5 inboard of back supporting leg are connected with first branch 10 and second branch 11 through hinge rotation respectively, connect through hinge rotation between first branch 10 and the second branch 11, thread groove 6 has all been seted up on two back supporting legs 5, thread groove 6 threaded connection has lantern ring 7, 7 one side welding of lantern ring has connecting rod 8, 8 bending welding of connecting rod has protection column 9, be provided with buffer gear on preceding supporting leg 2.

The utility model discloses in, buffer gear is provided with sleeve pipe 13 in 2 bottoms of preceding supporting leg, set up recess 14 in the sleeve pipe 13, preceding supporting leg 2 sets up inside recess 14, the welding of sleeve pipe 13 inner wall bottom has installation piece 15, the welding of installation piece 15 top has spring 16, the welding of spring 16 top and 2 bottoms of preceding supporting leg, be provided with stop gear in the sleeve pipe 13, stop gear has seted up two spacing grooves 17 at sleeve pipe 13 bilateral inner wall symmetry, the welding of 2 bilateral symmetry of preceding supporting leg has two stoppers 18, stopper 18 cross-sections set the arc into, stopper 18 and 17 sliding connection of spacing groove, 2 the inner of preceding supporting leg is provided with and leans against 3, lean against 3 and set up in bedplate 1 top, stabilizer blade 12 has all been cup jointed to preceding supporting leg 2 and back supporting leg 5 bottoms.

The working principle is as follows: during the use, expand the folding chair, make preceding supporting leg 2 and back supporting leg 5 land and support, rotate connecting rod 8, under the effect of thread groove 6, make lantern ring 7, connecting rod 8 and protection post 9 remove downwards, it is close ground position to rotate protection post 9, and rotate the right side to back supporting leg 5, when the folding chair emptys backward, protection post 9 lands the support, thereby prevent that the folding chair from empting, thereby improve the device's security, be provided with spring 16, when the user sits on bedplate 1, preceding supporting leg 2 receives pressure, make spring 16 elastic motion, thereby improve the device's elasticity, and then improve use comfort, be provided with stopper 18 and spacing groove 17, make spring 16 only receive ascending or decurrent effort, thereby prevent that spring 16 from taking place to twist and warp, thereby prolong spring 16's life.

Example 2

Referring to fig. 1-3, a high folding chair of security, preceding support leg 2 inner all is fixed with fixed column 19 through the bolt, is connected with same straight axle 20 through the hinge rotation between two fixed columns 19, and straight axle 20 with lean against 3 and run through fixedly, lean against 3 and keep away from protection post 9 one side bonding have a plurality of upper and lower evenly distributed's foam-rubber cushion 21, be provided with a plurality of horizontal evenly distributed's on the foam-rubber cushion 21 antiskid salient 22.

The working principle is as follows: when the user sits on bedplate 1, when the back leans against backrest 3 tightly, backrest 3 can closely laminate with human back, thereby make the user keep the correct position of sitting, when the user lies and leans against, backrest 3 can be in same straight line with preceding supporting leg 2, thereby improve use comfort, and be provided with a plurality of foam-rubber cushions 21 and non-slip raised 22, multiplicable and the frictional force at user's back, the health slides downwards when preventing to lie and lean against, thereby further improve use comfort.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A folding chair with high safety comprises a seat board (1), wherein two ends of the seat board (1) are symmetrically connected with the same front supporting leg (2) through hinges in a rotating mode, the cross section of the front supporting leg (2) is set to be U-shaped, and is characterized in that two fixing blocks (4) are welded on one side of the front supporting leg (2), rear supporting legs (5) are respectively connected onto the two fixing blocks (4) through hinges in a rotating mode, the inner ends of the two rear supporting legs (5) are respectively connected with two ends of the seat board (1) through hinges in a rotating mode, a first supporting rod (10) and a second supporting rod (11) are respectively connected to the inner sides of the front supporting leg (2) and the inner sides of the rear supporting legs (5) through hinges in a rotating mode, the first supporting rod (10) is connected with the second supporting rod (11) through hinges in a rotating mode, thread grooves (6) are formed in the two, a connecting rod (8) is welded on one side of the lantern ring (7), a protective column (9) is welded on the connecting rod (8) in a bending mode, and a buffering mechanism is arranged on the front supporting leg (2).

2. The folding chair with high safety as claimed in claim 1, wherein the buffering mechanism is provided with a sleeve (13) at the bottom of the front support leg (2), a groove (14) is formed in the sleeve (13), the front support leg (2) is arranged inside the groove (14), a mounting block (15) is welded at the bottom of the inner wall of the sleeve (13), a spring (16) is welded at the top of the mounting block (15), the top of the spring (16) is welded with the bottom of the front support leg (2), and a limiting mechanism is arranged in the sleeve (13).

3. The folding chair with high safety as claimed in claim 2, wherein the limiting mechanism is symmetrically provided with two limiting grooves (17) on the inner walls of the two sides of the sleeve (13), two limiting blocks (18) are symmetrically welded on the two sides of the front supporting leg (2), the cross section of each limiting block (18) is arc-shaped, and each limiting block (18) is slidably connected with the corresponding limiting groove (17).

4. A safety folding chair as claimed in claim 3, wherein the inner end of the front support leg (2) is provided with a backrest (3), the backrest (3) being arranged above the seat plate (1).

5. A safety folding chair as claimed in claim 4, characterized in that the bottom of the front (2) and rear (5) support legs are sleeved with legs (12).

6. The folding chair with high safety as claimed in claim 5, wherein the inner ends of the front supporting legs (2) are fixed with fixing columns (19) through bolts, the two fixing columns (19) are rotatably connected with the same straight shaft (20) through hinges, and the straight shaft (20) and the backrest (3) are fixed in a penetrating way.

7. The folding chair with high safety as claimed in claim 5 or 6, wherein a plurality of sponge cushions (21) are uniformly distributed up and down and adhered to one side of the backrest (3) far away from the protection column (9), and a plurality of anti-skid protrusions (22) are uniformly distributed on the sponge cushions (21) in the transverse direction.