CN211154674U - Soft stain-resistant backrest chair - Google Patents

Abstract

The utility model discloses a soft resistant back chair that stains, including a plurality of chair feet, set up in the seat at a plurality of chair feet tops, set up in the back of seat rear side, every chair foot all includes the mount, slide and set up in the mount and the slide bar that the top links to each other with the seat, the hole of sliding has been seted up on the top surface of mount, set up the perforation that a plurality of vertical straight lines were arranged on the lateral wall of mount, the slide bar inserts in the slide hole and rather than sliding fit, offer on the lateral wall of slide bar and be used for respectively with the screw hole that a plurality of perforation align, wear to be equipped with the set screw with screw hole threaded connection on the perforation, be provided with supporting spring between the bottom surface of slide bar and the diapire in. The utility model has the advantages of its technical scheme main points are that the chair foot includes the mount, slides and sets up the pole that slides in the mount, and the length of chair foot can be adjusted, and the height of seat can be adjusted promptly, is convenient for adapt to the user's of different heights bodily form user's user demand better, and the practicality is good.

Description

Soft stain-resistant backrest chair

Technical Field

The utility model relates to a back chair technical field, in particular to soft resistant back chair that stains.

Background

As one of the most common clamps, a chair is rich in design style nowadays, and a back rest chair occupies an extremely important position in the chair, and the back rest chair is a chair with a back rest as the name implies.

The prior patent with the publication number of CN203073766U discloses a back-rest chair, which comprises a chair surface, support legs and a back-rest board, wherein the chair surface is fixedly arranged at the tops of the support legs, and the back-rest board is fixedly connected with the rear side of the chair surface.

The above prior art solutions have the following drawbacks: because the distance between the stool surface and the ground can not be adjusted, the stool can not be better suitable for users with different heights and body types, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved problem of the utility model is to the above-mentioned not enough and provide a soft resistant back chair that stains that exists among the prior art, the height of its seat can be adjusted, is convenient for adapt to the user's of different height sizes user's that the practicality is good better.

(II) technical scheme

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a soft resistant back chair that stains, includes a plurality of chair feet, sets up in the seat at a plurality of chair feet tops, sets up in the back of seat rear side, every the chair foot all includes mount, slides and sets up the slide bar that just top and seat link to each other in the mount, the hole of sliding has been seted up on the top surface of mount, set up the perforation that a plurality of vertical straight lines were arranged on the lateral wall of mount, the slide bar insert slide downthehole and rather than sliding fit, set up on the lateral wall of slide bar and be used for respectively with the screw hole that a plurality of perforation align, wear to be equipped with the set screw with screw hole threaded connection on the perforation, be provided with supporting spring between the bottom surface of slide bar and the diapire in hole of sliding.

The utility model discloses further set up to: two handrails are symmetrically arranged on the top surface of the chair surface, and each handrail comprises a support arranged on the chair surface and a panel arranged at the top of the support.

The utility model discloses further set up to: the surface of seat and back has laid the cushion, all realize dismantling the connection through the button between cushion and seat and the back.

The utility model discloses further set up to: the bottom surface of each fixing frame is provided with a wheel groove, the two side walls of each fixing frame are respectively provided with a first pin shaft hole and a second pin shaft hole which are communicated with the wheel grooves, a pin shaft is arranged in the first pin shaft hole and the second pin shaft hole together in a penetrating way, wheel carriers are arranged on the pin shafts in a rotating way, the wheel carrier is rotatably provided with a roller, the side wall of the fixing frame is provided with four first positioning grooves communicated with the second pin shaft hole along the penetrating direction of the second pin shaft hole, the four first positioning grooves are circumferentially and uniformly distributed on the hole wall of the second pin shaft hole and penetrate through the side wall, the end surface of the wheel carrier facing the second pin shaft hole is provided with four second positioning grooves aligned with the first positioning grooves, and a plurality of positioning strips which are used for penetrating through the first positioning grooves and being inserted into the second positioning grooves to limit the rotation of the wheel frame on the pin shaft are arranged on the side wall of the pin shaft.

The utility model discloses further set up to: the wheel carrier includes the first plate body that is close to first round pin shaft hole setting, is close to the second plate body that second round pin shaft hole set up, the gyro wheel rotates and sets up between first plate body and second plate body, the second constant head tank is seted up on the lateral wall in second plate body orientation second round pin shaft hole, be provided with the compression spring board between first plate body and the second plate body, it is equipped with the torsional spring to sell epaxial cover, the torsional spring is located between first plate body and the second plate body, the diapire butt of torsional spring one end and race, the other end and compression spring board butt.

The utility model discloses further set up to: the end part of the pin shaft, which is close to the first pin shaft hole, is provided with a first limiting plate, the end part of the pin shaft, which is close to the second pin shaft hole, is provided with a second limiting plate, and the first limiting plate and the second limiting plate are used for limiting the pin shaft to be drawn out from the first pin shaft hole and the second pin shaft hole.

The utility model discloses further set up to: the hinge pin is sleeved with a reset spring, one end of the reset spring is abutted to the end face, facing the fixing frame, of the first limiting plate, the other end of the reset spring is abutted to the end face, facing the first limiting plate, of the fixing frame, and the elastic force generated by the reset spring under the pressure can act on the first limiting plate to drive the first limiting plate to move in the direction of being away from the fixing frame.

(III) advantageous effects

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. the practicability is good: the chair legs comprise a fixed frame and a sliding rod arranged in the fixed frame in a sliding manner, the length of the chair legs can be adjusted, namely the height of the chair seat can be adjusted, the use requirements of users with different heights and body types can be better met, and the practicability is good;

2. contamination resistance: the chair surface, the backrest and the armrests are all made of wood, the surfaces of the chair surface, the backrest and the armrests are painted, so that the chair is convenient to clean and clean, and the backrest chair has the advantage of stain resistance;

3. the carrying is convenient: the rollers capable of protruding or hiding the roller grooves are arranged in each chair leg, so that a user can carry the soft stain-resistant backrest chair conveniently.

Drawings

FIG. 1 is a schematic view showing the structure of a soft stain-resistant back rest chair according to an embodiment;

FIG. 2 is a partial cross-sectional view taken along line I-I of FIG. 1;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a partial exploded view of the components of the mount of the embodiment.

Reference numerals: 1. chair legs; 101. a fixed mount; 102. a slide bar; 2. a chair surface; 3. a backrest; 4. a sliding hole; 5. perforating; 6. a set screw; 7. a threaded hole; 71. a support spring; 8. a connecting rod; 9. a handrail; 91. a support; 92. a panel; 10. a soft cushion; 11. a wheel groove; 12. a first pin shaft hole; 13. a second pin shaft hole; 14. a pin shaft; 15. a wheel carrier; 151. a first plate body; 152. a second plate body; 16. a roller; 17. a first positioning groove; 18. a second positioning groove; 19. a positioning bar; 20. a first limit plate; 21. a second limiting plate; 22. a compression spring plate; 23. a torsion spring; 24. a return spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figures 1 and 2, the soft stain-resistant backrest chair comprises four chair legs 1, a chair surface 2 fixedly arranged at the tops of the four chair legs 1 and a backrest 3 fixedly arranged at the rear side of the chair surface 2. The chair leg 1 is made of iron, so that the structural strength is high; the chair seat 2 and the backrest 3 are made of wood, and the surfaces of the chair seat and the backrest are painted for convenient wiping and cleaning.

The four chair legs 1 are distributed in four corners, and the chair legs 1 comprise a fixed frame 101 and a sliding rod 102. The mount 101 is the cuboid, has seted up circular shape hole 4 that slides on the top surface of mount 101, has seted up five circular shape perforation 5 on the lateral wall of mount 101, and five perforation 5 are arranged for vertical straight line, wear to be equipped with set screw 6 in one of them perforation 5. The sliding rod 102 is cylindrical, and the sliding rod 102 is inserted into the sliding hole 4 and is in sliding fit with the sliding hole 4. A threaded hole 7 is formed in the side wall of the sliding rod 102, the threaded hole 7 is used for being aligned with the five through holes 5 respectively, and the threaded hole 7 is in threaded connection with the fixing screw 6. When the threaded hole 7 is aligned with one of the through holes 5, the fixing screw 6 is screwed to fix the fixing frame 101 and the sliding rod 102 relatively. A support spring 71 is provided between the bottom surface of the slide lever 102 and the bottom wall of the slide hole 4, and one end of the support spring 71 abuts against the bottom surface of the slide lever 102 and the other end abuts against the bottom wall of the slide hole 4. Fixedly connected with connecting rod 8 between two adjacent mounts 101, connecting rod 8 are the cuboid, through setting up connecting rod 8 for four chair feet 1 can connect and form wholly, and the wholeness is stronger.

When the height of the chair seat 2 does not meet the use requirements of a user, the user unscrews the four fixing screws 6, because the supporting springs 71 are arranged between the bottom surface of the sliding rod 102 and the bottom wall of the sliding hole 4, the four pressed supporting springs 71 can support the sliding rod 102, the chair seat 2 and the backrest 3, so that the user does not need to hold the chair seat 2 by hands all the time when adjusting the height of the chair seat 2, then the user presses the chair seat 2 to a target position, the threaded hole 7 is aligned with the through hole 5 of the corresponding position, and then the chair seat 2 can be positioned at a proper position by screwing the four fixing screws 6.

As shown in fig. 1, two armrests 9 are symmetrically disposed on the top surface of the seat 2, each armrest 9 includes two brackets 91 and a panel 92, the number of the brackets 91 is two and is symmetrical to each other, the brackets 91 are glued to the seat 2, and the panels 92 are glued to the tops of the two top frames. The armrests 9 are made of wood, the surfaces of the armrests are painted, the cleaning is convenient, and the backrest chair has the advantage of stain resistance.

The surfaces of the seat 2 and the backrest 3 are provided with cushions 10, and the cushions 10 are partially positioned between the two armrests 9. Cushion 10 is mainly including being located the surperficial cortex shell, fill fillers such as expanded plastics or garrulous cotton in the cortex shell, cushion 10 is whole softer, then cushion 10 is the state of buckling and lays respectively on the surface of seat 2 and back 3, through set up the button and realize dismantling the connection between four angles and seat 2 on the face of cushion 10 and the 2 laminating of seat, cushion 10 and 3 laminating of back realize dismantling the connection through setting up the button between four angles and back 3 on the face, cushion 10 can be comparatively convenient dismantle from seat 2 and back 3, be convenient for wash and maintain.

As shown in fig. 3 and 4, a wheel groove 11 is formed on the bottom surface of the fixing frame 101, and two ends of the wheel groove 11 extend to be flush with two side walls of the fixing frame 101, respectively. The two side walls of each fixing frame 101 are respectively provided with a first round pin shaft hole 12 and a second round pin shaft hole 13, and the first round pin shaft hole 12 and the second round pin shaft hole 13 are communicated with the wheel groove 11. The first pin shaft hole 12 and the second pin shaft hole 13 are internally provided with a cylindrical pin shaft 14, and the pin shaft 14 is in sliding fit with the first pin shaft hole 12 and the second pin shaft hole 13, so that the pin shaft 14 can move transversely. Each pin shaft 14 is rotatably provided with a wheel carrier 15, each wheel carrier 15 includes a first plate 151 disposed near the first pin shaft hole 12 and a second plate 152 disposed near the second pin shaft hole 13, and a roller 16 is rotatably disposed between the first plate 151 and the second plate 152.

Four first positioning grooves 17 are formed in the side wall of the fixing frame 101 along the penetrating direction of the second pin shaft hole 13, the four first positioning grooves 17 are communicated with the second pin shaft hole 13, the four first positioning grooves 17 are circumferentially and uniformly distributed on the hole wall of the second pin shaft hole 13 by taking the central axis of the pin shaft 14 as a circle center and penetrate through the side wall, two of the first positioning grooves 17 are formed horizontally, and the other two first positioning grooves 17 are formed vertically. Four second positioning grooves 18 are formed in the side wall, facing the second pin shaft hole 13, of the second plate body 152, the four second positioning grooves 18 are aligned with the four first positioning grooves 17, and the four second positioning grooves 18 are equidistantly and circumferentially distributed on the second plate body 152 by taking the center line of the pin shaft 14 as a circle center and penetrate through the side wall.

The side wall of the pin shaft 14 is fixedly connected with four positioning strips 19, the four positioning strips 19 are equidistantly and circumferentially distributed on the pin shaft 14 by taking the center line of the pin shaft 14 as a circle center, when the positioning strips 19 pass through the first positioning groove 17 and are inserted into the second positioning groove 18, the wheel frame 15 cannot continuously rotate around the pin shaft 14, and the positioning strips 19 are used for respectively fixing the wheel frame 15 in a horizontal state and a vertical state. When the wheel frame 15 is in a horizontal state, the wheel frame 15 and the roller 16 are completely positioned in the wheel groove 11; when the wheel frame 15 is in the vertical state, the roller 16 protrudes out of the wheel groove 11.

A compression spring plate 22 is fixedly connected between the first plate 151 and the second plate 152, and the compression spring plate 22 is a rectangular plate. The hinge pin 14 is sleeved with a torsion spring 23, the torsion spring 23 is located between the first plate body 151 and the second plate body 152, one end of the torsion spring 23 is abutted to the bottom wall of the wheel groove 11, the other end of the torsion spring 23 is abutted to the compression spring plate 22, the torsion spring 23 is used for driving the compression spring plate 22, the wheel frame 15 and the roller 16 to rotate in the direction back to the bottom wall of the wheel groove 11 until the wheel frame 15 is in a vertical state, and the roller 16 protrudes out of the wheel groove 11 at the moment.

The first limiting plate 20 is fixedly connected to one end, close to the first pin shaft hole 12, of the pin shaft 14, the first limiting plate 20 is disc-shaped, and the diameter of the first limiting plate 20 is larger than that of the first pin shaft hole 12. One end of the pin shaft 14, which is close to the second pin shaft hole 13, is fixedly connected with a second limiting plate 21, the second limiting plate 21 is disc-shaped, and the diameter of the second limiting plate 21 is larger than that of the second pin shaft hole 13. The first and second restriction plates 20 and 21 are used to restrict the pin 14 from being drawn out of the first and second pin hole 12 and 13, and the first and second restriction plates 20 and 21 can provide a point of application for the user to push and pull the pin 14.

The pin shaft 14 is sleeved with a return spring 24, one end of the return spring 24 abuts against the end face, facing the fixed frame 101, of the first limiting plate 20, the other end of the return spring abuts against the end face, facing the first limiting plate 20, of the fixed frame 101, and elastic force generated by the compression of the return spring 24 acts on the first limiting plate 20 to drive the first limiting plate 20 to move in the direction away from the fixed frame 101.

When the back rest chair needs to be carried, a user firstly lifts the back rest chair, then presses the first limiting plate 20, so that the pin shaft 14 moves along the axial direction of the first pin shaft hole 12 and the second pin shaft hole 13 until the positioning strip 19 fixedly connected to the pin shaft 14 is pulled out of the second positioning groove 18, the elastic force generated by the reset of the torsion spring 23 acts on the pressure spring plate 22, so that the pressure spring plate 22, the wheel frame 15 and the roller 16 rotate in the direction away from the bottom wall of the wheel groove 11 until the pressure spring plate 22, the wheel frame 15 and the roller 16 are in a stable state under the action of gravity, in the process, the wheel frame 15 rotates ninety degrees, the four second positioning grooves 18 and the four first positioning grooves 17 are aligned again, then the user removes the hand from the first limiting plate 20, the elastic force generated by the pressure of the reset spring 24 acts on the first limiting plate 20 to drive the first limiting plate 20 to move in the direction away from the fixing, the pin 14 moves along the axial direction of the first pin hole 12 and the second pin hole 13, and further drives the positioning strip 19 to be inserted into the second positioning groove 18, so that the wheel carrier 15 cannot continue to rotate around the pin 14, and at the moment, a user carries the backrest chair in a push-pull mode, and the backrest chair is convenient to use.

When the back rest chair needs to be placed stably, a user firstly lifts the back rest chair, then presses the first limiting plate 20, so that the pin shaft 14 moves along the axial direction of the first pin shaft hole 12 and the second pin shaft hole 13, the pin shaft 14 drives the positioning strip 19 to draw out the second positioning groove 18, then the wheel frame 15 rotates ninety degrees, the wheel frame 15 and the roller 16 retract into the wheel groove 11, in the process, the compression spring plate 22 can compress the torsion spring 23, so that the torsion spring 23 is converted into a compression state, the wheel frame 15 rotates ninety degrees, the four second positioning grooves 18 and the four first positioning grooves 17 are aligned again, then the user removes hands from the first limiting plate 20, the elastic force generated by the compression of the return spring 24 can act on the first limiting plate 20 to drive the first limiting plate 20 to move away from the fixing frame 101, the pin shaft 14 moves along the axial direction of the first pin shaft hole 12 and the second pin shaft hole 13, and then the positioning strip 19 is driven to be inserted into the second positioning groove 18, the wheel frame 15 can not rotate around the pin shaft 14, the wheel frame 15 and the roller 16 keep the state of retracting into the wheel groove 11, and at the moment, the back rest chair can be placed stably.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (7)

1. The utility model provides a soft resistant back chair that stains, includes a plurality of chair feet (1), sets up in seat (2) at a plurality of chair feet (1) top, sets up in back (3) of seat (2) rear side, its characterized in that: every chair foot (1) all includes mount (101), slides and sets up slide bar (102) that just top and seat (2) link to each other in mount (101), slide hole (4) have been seted up on the top surface of mount (101), set up perforation (5) that a plurality of vertical straight lines were arranged on the lateral wall of mount (101), slide bar (102) insert slide hole (4) in and rather than sliding fit, set up threaded hole (7) that are used for respectively aligning with a plurality of perforation (5) on the lateral wall of slide bar (102), wear to be equipped with on perforation (5) with threaded hole (7) threaded connection's set screw (6), be provided with supporting spring (71) between the diapire of the bottom surface of slide bar (102) and slide hole (4).

2. A soft stain resistant back rest chair according to claim 1, wherein: two armrests (9) are symmetrically arranged on the top surface of the chair surface (2), and each armrest (9) comprises a support (91) arranged on the chair surface (2) and a panel (92) arranged at the top of the support (91).

3. A soft stain resistant back rest chair according to claim 1, wherein: cushion (10) have been laid on the surface of seat (2) and back (3), all realize dismantling the connection through the button between cushion (10) and seat (2) and back (3).

4. A soft stain resistant back rest chair according to claim 1, wherein: the bottom surface of each fixing frame (101) is provided with a wheel groove (11), two side walls of each fixing frame (101) are respectively provided with a first pin shaft hole (12) and a second pin shaft hole (13) which are communicated with the wheel groove (11), pin shafts (14) are arranged in the first pin shaft hole (12) and the second pin shaft hole (13) in a penetrating mode, the pin shafts (14) are all rotatably provided with wheel frames (15), the wheel frames (15) are rotatably provided with rollers (16), the side wall of each fixing frame (101) is provided with four first positioning grooves (17) communicated with the second pin shaft holes (13) along the penetrating direction of the second pin shaft holes (13), the four first positioning grooves (17) are circumferentially and uniformly distributed on the wall of the second pin shaft holes (13) and penetrate through the side wall, the end face, facing the second pin shaft holes (13), of the wheel frames (15) is provided with four second positioning grooves (18) aligned with the first positioning grooves (17), and a plurality of positioning strips (19) which penetrate through the first positioning grooves (17) and are inserted into the second positioning grooves (18) to further limit the rotation of the wheel carrier (15) on the pin shaft (14) are arranged on the side wall of the pin shaft (14).

5. A soft stain resistant back rest chair according to claim 4, wherein: wheel carrier (15) including be close to first plate body (151) that first round pin shaft hole (12) set up, be close to second plate body (152) that second round pin shaft hole (13) set up, gyro wheel (16) rotate to set up between first plate body (151) and second plate body (152), second constant head tank (18) are seted up on the lateral wall of second plate body (152) orientation second round pin shaft hole (13), be provided with compressed spring board (22) between first plate body (151) and second plate body (152), the cover is equipped with torsional spring (23) on round pin axle (14), torsional spring (23) are located between first plate body (151) and second plate body (152), the diapire butt of torsional spring (23) one end and race (11), the other end and compressed spring board (22) butt.

6. A soft stain resistant back rest chair according to claim 5, wherein: the utility model discloses a safety device for a hinge pin, including round pin axle (14), the tip that round pin axle (14) is close to first round pin shaft hole (12) is provided with first limiting plate (20), the tip that round pin axle (14) is close to second round pin shaft hole (13) is provided with second limiting plate (21), first limiting plate (20) and second limiting plate (21) are used for restricting round pin axle (14) and take out from first round pin shaft hole (12) and second round pin shaft hole (13).

7. A soft stain resistant back rest chair according to claim 6, wherein: the hinge pin (14) is sleeved with a return spring (24), one end of the return spring (24) is abutted to the end face of the first limiting plate (20) facing the fixing frame (101), the other end of the return spring is abutted to the end face of the fixing frame (101) facing the first limiting plate (20), and the elastic force generated by the compression of the return spring (24) acts on the first limiting plate (20) to drive the first limiting plate (20) to move in the direction away from the fixing frame (101).

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