CN213128754U

CN213128754U - Seat with replaceable seat back

Info

Publication number: CN213128754U
Application number: CN202021805545.7U
Authority: CN
Inventors: 杨伟立
Original assignee: Zhongshan Aolifa Furniture Manufacturing Co ltd
Current assignee: Tangshan Hsbc Industry Group Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-07
Anticipated expiration: 2030-08-26

Abstract

The utility model belongs to the technical field of furniture, in particular to a chair with a replaceable chair back, which comprises a chair surface, wherein the lower end of the left side of the chair back body is fixedly connected with an L-shaped plugboard, the left side of the L-shaped plugboard is provided with two jacks in a penetrating way, the left side of a handrail is fixedly connected with a fixing piece matched with the L-shaped plugboard, the left side of the fixing piece is embedded with two thread sleeves, the inner left side of the fixing piece is provided with two limiting grooves, the left side of the two thread sleeves is provided with a knob, the right side of the two knobs is fixedly connected with connecting rods matched with the jacks, the left end of the outer side wall of the two connecting rods is fixedly connected with outer threads matched with the thread sleeves, and springs are fixedly connected between the two knobs and the fixing piece, so that the chair back body of the chair is, the problem that the service life of the installation of the seat back is reduced due to overhigh replacement frequency of the bolt connection is avoided.

Description

Seat with replaceable seat back

Technical Field

The utility model relates to the technical field of furniture, concretely relates to seat of removable back of the chair.

Background

The seat is one kind has the back, some have the thing to sit on of handrail, and the variety of chair is various, and the seat divides mainly to have according to the material: the chair comprises a solid wood chair, a glass chair, an iron art chair, a plastic chair, a cloth art chair, a leather art chair, a foaming chair and the like, and mainly comprises the following functions: the chair comprises an office chair, a dining chair, a bar chair, a leisure chair, a deck chair, a special chair and the like, wherein the style and the function of the chair are more and more along with the improvement of the life quality of people, at present, most of the chairs used by people in work or life are chair legs, a chair surface support, an armrest support and a backrest support which are welded into a whole, and then a chair surface, an armrest and a backrest are arranged on the chair legs, the chair surface support, the armrest support and the backrest support, or the chair surface and the backrest are integrated.

The existing seat with the replaceable seat back has the disadvantages that the replacement mode and the structure are complex during replacement, the speed of replacing the seat back is reduced, and the service life of the installation and connection of the seat back is easily shortened when the installation and replacement frequency is too high through the connection mode of bolts and screws.

SUMMERY OF THE UTILITY MODEL

For solving the problem that provides among the above-mentioned background art, the utility model provides a seat of removable back of the chair has the convenient and fast replacement when changing the back of the chair to change mode and simple structure, avoid changing the too high life who leads to reducing the installation of the back of the chair body of seat's characteristics of frequency through bolted connection.

In order to achieve the above object, the utility model provides a following technical scheme: a chair with a replaceable chair back comprises a chair seat, wherein the lower end surface of the chair seat is fixedly connected with armrests in sequence from front to back, a chair back body is arranged between the two armrests, the lower end of the left side of the chair back body is fixedly connected with an L-shaped plugboard, the left side of the L-shaped plugboard is provided with two jacks in a penetrating manner, the left side of each armrest is fixedly connected with a fixing piece matched with the L-shaped plugboard, the left side of the fixing piece is embedded with two threaded sleeves, the left side of the inside of the fixing piece is provided with two limiting grooves, the left sides of the two threaded sleeves are both provided with knobs, the right sides of the two knobs are both fixedly connected with connecting rods matched with the jacks, the left ends of the outer side walls of the two connecting rods are both fixedly connected with external threads matched with the threaded sleeves, and the right ends, two equal fixedly connected with spring between knob and the mounting, two the spring cup joints the lateral wall in two connecting rods respectively.

In order to stop the baffle, avoid the problem of L type plugboard rebound, further improve the stability behind this back of the chair body installation, conduct the utility model relates to a seat of the removable back of the chair is preferred, the inside left side fixedly connected with baffle of mounting, the baffle is located the below of two jacks.

In order to restrict the connecting rod and continue to pop out left, avoid droing between connecting rod and the mounting, conduct the utility model relates to a seat of the removable back of the chair is preferred, two the equal fixedly connected with stopper in right side of connecting rod, the diameter of stopper is less than the diameter of jack and is greater than the internal diameter with the thread bush.

In order to avoid the hand and the knob to skid, conduct the utility model relates to a seat of removable back of the chair is preferred, the lateral wall fixedly connected with antiskid line of knob.

In order to facilitate taking out the chair back body connected with the L-shaped plugboard from the inside of the fixing part, the utility model relates to a chair with a replaceable chair back is preferable, the upper end face of the L-shaped plugboard is fixedly connected with the holding rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the chair back body of the chair is replaced, the two knobs are screwed outwards, when the external thread part of the outer wall of the connecting rod is screwed out of the thread sleeve, the spring drives the connecting rod to pop out of the left side of the fixing piece, after the connecting rod is moved out of the jack, the L-shaped plugboard is separated from the fixing piece, then the chair back body connected with the L-shaped plugboard moves upwards from the inside of the fixing piece to be taken out, the chair back body needing to be replaced is reversely operated and installed in the inside of the fixing piece, in the process, the knob drives the connecting rod to be inserted into the jack for position limitation, the external thread on the outer side of the connecting rod is screwed into the threaded sleeve, the spring is in a contraction shape at the same time, thereby convenient quick replacement when the back of the chair body of this seat is changed to change mode and simple structure avoid changing the too high life that leads to reducing the installation of the back of the chair body of seat through bolted connection.

2. This kind of seat of removable back of the chair, after the connecting rod inserted the inside of two jacks, two connecting rods stopped the baffle, and the problem of L type plugboard rebound is avoided to the baffle, has further improved the stability behind this back of the chair body installation.

3. This kind of seat of removable back of the chair when dismantling and changing back of the chair body, when the spring drove the connecting rod and pop out left, the diameter through the stopper is less than the diameter of jack and is greater than the internal diameter with the thread bush, and then stopper and the inside left side of spacing recess closely laminate, and the restriction connecting rod continues to pop out left, avoids droing between connecting rod and the mounting.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a sectional view of a seat with a replaceable seat back according to the present invention;

fig. 2 is a cross-sectional view taken along the line a of the present invention;

FIG. 3 is a structural view of the connecting rod of the present invention;

FIG. 4 is a structural diagram of the L-shaped plugboard of the present invention;

fig. 5 is a cross-sectional view of the present invention at B.

In the figure, 1, a chair seat; 101. a handrail; 102. a chair back body; 2. a fixing member; 201. a knob; 2011. anti-skid lines; 202. a connecting rod; 2021. an external thread; 203. a limiting block; 204. a spring; 205. a limiting groove; 206. a threaded sleeve; 3. an L-shaped plugboard; 301. a jack; 302. a baffle plate; 303. a holding rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-5, the present invention provides the following technical solutions: a chair with a replaceable chair back comprises a chair seat 1, wherein the lower end surface of the chair seat 1 is fixedly connected with armrests 101 sequentially from front to back, a chair back body 102 is arranged between the two armrests 101, the lower end of the left side of the chair back body 102 is fixedly connected with an L-shaped plugboard 3, the left side of the L-shaped plugboard 3 is provided with two jacks 301 in a penetrating manner, the left side of each armrest 101 is fixedly connected with a fixing piece 2 matched with the L-shaped plugboard 3, the left side of each fixing piece 2 is embedded with two threaded sleeves 206, the left side of the inside of each fixing piece 2 is provided with two limiting grooves 205, the left sides of the two threaded sleeves 206 are respectively provided with a knob 201, the right sides of the two knobs 201 are respectively fixedly connected with connecting rods 202 matched with the jacks 301, the left ends of the outer side walls of the two connecting rods 202 are respectively fixedly connected with external threads 2021 matched with, all fixedly connected with spring 204 between two knobs 201 and mounting 2, two springs 204 cup joint in the lateral wall of two connecting rods 202 respectively.

In this embodiment: when the chair back body 102 is replaced, the two knobs 201 are screwed outwards, when the external thread 2021 part of the outer wall of the connecting rod 202 is screwed out of the thread sleeve 206, the spring 204 drives the connecting rod 202 to pop out of the left side of the fixing piece 2, after the connecting rod 202 moves out of the jack 301, the L-shaped plugboard 3 is separated from the fixing piece 2, then the chair back body 102 connected with the L-shaped plugboard 3 is moved upwards and taken out from the inner part of the fixed part 2, the chair back body 102 needing to be replaced is installed in the inner part of the fixed part 2 in a reverse operation way, in the process, the knob 201 drives the connecting rod 202 to be inserted into the insertion hole 301 for position limitation, the external thread 2021 on the outer side of the connecting rod 202 is screwed into the threaded sleeve 206, and the spring 204 is in a contraction shape, therefore, the seat back body 102 of the seat is convenient and quick to replace, the replacement mode and the structure are simple, and the problem that the service life of the seat back body 102 is shortened due to overhigh replacement frequency through bolt connection is avoided.

As a technical optimization scheme of the utility model, the inside left side fixedly connected with baffle 302 of mounting 2, baffle 302 are located the below of two jacks 301.

In this embodiment: after the connecting rods 202 are inserted into the two insertion holes 301, the two connecting rods 202 block the baffle 302, and the baffle 302 avoids the problem that the L-shaped insertion plate 3 moves upwards, so that the stability of the chair back body 102 after installation is further improved.

As a technical optimization scheme of the utility model, the equal fixedly connected with stopper 203 in right side of two connecting rods 202, the diameter of stopper 203 is less than the diameter of jack 301 and is greater than the internal diameter with thread bush 206.

In this embodiment: when the chair back body 102 is disassembled and replaced, the spring 204 drives the connecting rod 202 to pop up leftwards, the diameter of the limiting block 203 is smaller than that of the jack 301 and larger than the inner diameter of the threaded sleeve 206, then the limiting block 203 is tightly attached to the left side of the limiting groove 205, the connecting rod 202 is limited to continue to pop up leftwards, and the connecting rod 202 and the fixing piece 2 are prevented from falling off.

As a technical optimization scheme of the utility model, the lateral wall fixedly connected with antiskid line 2011 of knob 201.

In this embodiment: when a user screws the knob 201, the anti-slip lines 2011 prevent the hand from slipping with the knob 201.

As a technical optimization scheme of the utility model, the up end fixedly connected with holding rod 303 of L type plugboard 3.

In this embodiment: when the L-shaped inserting plate 3 is taken out, the holding rod 303 is held by a hand, so that the chair back body 102 connected with the L-shaped inserting plate 3 can be conveniently taken out from the fixing member 2.

The utility model discloses a theory of operation and use flow: when the chair back body 102 is replaced, two knobs 201 are screwed outwards, when the external thread 2021 part of the outer wall of the connecting rod 202 is screwed out of the thread sleeve 206, the spring 204 drives the connecting rod 202 to pop out of the left side of the fixing part 2, when the spring 204 drives the connecting rod 202 to pop out leftwards, the diameter of the limiting block 203 is smaller than that of the jack 301 and larger than the inner diameter of the thread sleeve 206, then the limiting block 203 is tightly attached to the left side of the inside of the limiting groove 205, the connecting rod 202 is limited to pop out leftwards continuously, after the connecting rod 202 is moved out of the jack 301, the L-shaped plugboard 3 is separated from the fixing part 2, then the handle 303 is held by hand, the chair back body 102 connected with the L-shaped plugboard 3 is moved upwards from the inside of the fixing part 2 to be replaced, the chair back body 102 to be replaced is reversely operated and installed in the inside of the fixing, the external thread 2021 outside the connecting rod 202 is screwed to the inside of the threaded sleeve 206, meanwhile, the spring 204 is in a contraction shape, the two connecting rods 202 block the baffle plate 302, and the baffle plate 302 avoids the problem that the L-shaped plugboard 3 moves upwards, so that the replacement is completed.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a seat of removable back of chair, includes seat (1), the lower terminal surface of seat (1) is fixedly connected with handrail (101) from the front to back in proper order, two be provided with back of the chair body (102), its characterized in that between handrail (101): the lower end of the left side of the chair back body (102) is fixedly connected with an L-shaped plugboard (3), the left side of the L-shaped plugboard (3) is provided with two jacks (301) in a penetrating manner, the left side of the handrail (101) is fixedly connected with a fixing piece (2) matched with the L-shaped plugboard (3), the left side of the fixing piece (2) is embedded with two thread sleeves (206), the left side of the inside of the fixing piece (2) is provided with two limiting grooves (205), the left sides of the two thread sleeves (206) are respectively provided with a knob (201), the right sides of the two knobs (201) are respectively fixedly connected with connecting rods (202) matched with the jacks (301), the left ends of the outer side walls of the two connecting rods (202) are respectively fixedly connected with external threads (2021) matched with the thread sleeves (206), and the right ends of the two connecting rods (202) respectively penetrate through the two thread sleeves (206), two equal fixedly connected with spring (204) between knob (201) and mounting (2), two spring (204) cup joint respectively in the lateral wall of two connecting rods (202).

2. A chair with replaceable back as claimed in claim 1, wherein: the inside left side fixedly connected with baffle (302) of mounting (2), baffle (302) are located the below of two jacks (301).

3. A chair with replaceable back as claimed in claim 1, wherein: two the equal fixedly connected with stopper (203) in right side of connecting rod (202), the diameter of stopper (203) is less than the diameter of jack (301) and be greater than with the internal diameter of thread bush (206).

4. A chair with replaceable back as claimed in claim 1, wherein: the outer side wall of the knob (201) is fixedly connected with anti-skid lines (2011).

5. A chair with replaceable back as claimed in claim 1, wherein: the upper end face of the L-shaped plugboard (3) is fixedly connected with a holding rod (303).