CN112043102A

CN112043102A - Quick-dismantling high-support-stability chair

Info

Publication number: CN112043102A
Application number: CN202010927936.4A
Authority: CN
Inventors: 赵文杰; 叶根林
Original assignee: Starway International Home Living Co ltd
Current assignee: Starway International Home Living Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2020-12-08
Anticipated expiration: 2040-09-07
Also published as: CN112043102B

Abstract

The invention provides a quick-dismantling chair with high support stability. The chair comprises a chair seat, chair legs and locking bolts, wherein the chair seat and the chair legs are arranged in a split mode, mounting holes are formed in the chair legs, connecting pins are mounted in the mounting holes, the locking bolts sequentially penetrate through the chair seat and the chair legs, and bolt heads of the locking bolts penetrate into the mounting holes and are connected to the connecting pins in a threaded mode. The chair of above-mentioned structure, when not only using, support stability is high, and it relies on convenient dismouting structure between chair leg and the seat moreover, can reduce the shared transportation space of sola chair by a wide margin, has reduced whole cost of transportation.

Description

Quick-dismantling high-support-stability chair

Technical Field

The invention relates to a chair, in particular to a quick-dismantling high-support-stability chair.

Background

A conventional chair, such as a chair with publication number CN207679167U, is mainly composed of a backrest, a seat and legs, wherein the legs mainly support the entire seat, and a user leans on the backrest and the seat at the same time.

The chair legs and the chair seat of the chair adopt an integrated injection molding structure, so that although the supporting stability of the chair is improved to a certain extent, in the transportation process, the occupied transportation space of a single chair is larger due to the fixed supporting structure formed between the chair seat and the chair legs, and the whole transportation cost is increased.

Disclosure of Invention

In view of this, the present invention provides a quick-detachable chair with high support stability, in which the legs and the seat can be quickly detached from each other, so as to facilitate transportation in logistics, and the legs can provide relatively stable support force for the seat.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the utility model provides a quick detach dress high support stability chair, includes seat, chair leg, still includes the locking bolt, the seat with adopt the components of a whole that can function independently setting between the chair leg, be equipped with the mounting hole on the chair leg, install the connecting pin in the mounting hole, the locking bolt passes seat, chair leg in proper order, the bolt head of locking bolt penetrates in the mounting hole and threaded connection in connecting pin.

According to the technical scheme, in the installation process, the chair legs are close to the bottom of the chair surface, the connecting pin is inserted into the installation hole, the locking bolt sequentially penetrates through the chair surface and the chair legs, the bolt head of the locking bolt penetrates into the installation hole and is in threaded connection with the connecting pin, and the purpose of stable connection between the whole chair legs and the chair surface can be achieved by means of the tensile force of the locking bolt and the side abutting force of the connecting pin;

when the chair needs to be disassembled, the locking bolt only needs to be screwed out of the connecting pin, the locking bolt and the connecting pin can be separated, the chair legs can be naturally separated from the chair surface, and the disassembly is convenient;

when the chair is used, the whole chair has high structural stability due to the tension of the locking bolt and the side abutting force of the connecting pin, and can provide stronger support stability; during transportation, the convenient disassembly and assembly steps between the chair legs and the chair seat are adopted, the transportation space occupied by a single chair can be greatly reduced, and the overall transportation cost is reduced.

Preferably, the aperture of the mounting hole is gradually reduced from the opening of the mounting hole to the inside of the mounting hole, and the shape of the connecting pin is matched with the shape of the mounting hole.

Through above-mentioned technical scheme, after the connecting pin inserted the mounting hole, the mounting hole aperture that progressively reduces can guide the grafting position of connecting pin better, and the effective conflict face of connecting pin and mounting hole is more stable.

Preferably, the mounting hole opening on the chair leg faces to the side of the middle part of the chair surface.

Through above-mentioned technical scheme, can reduce outside dust and the direct quantity that enters into in the mounting hole of water.

Preferably, still include the back of the chair, the chair face deviates from integrative bending type in chair leg one side has two support arms, the back of the chair both ends are connected on two support arms through the connecting piece respectively.

Through the technical scheme, when a user leans on the chair back, the extrusion force applied to the chair back can be directly transmitted to the chair surface, and the leaning stability of the whole chair is improved.

Preferably, the connecting piece comprises a connecting bolt piece and a positioning pin, the positioning pin is fixedly arranged on the supporting arm, a positioning hole for inserting the positioning pin is formed in the chair back, and the connecting bolt piece is connected between the supporting arm and the chair back.

Through the technical scheme, when the chair is installed, only the positioning holes in the chair back are aligned to the positioning pins and inserted into the positioning pins, and then the positioning pins are connected between the supporting arm and the chair back through the connecting bolt pieces, so that the connecting stability of the supporting arm and the chair back is ensured, and the installation convenience is high.

Preferably, the number of the connecting bolt pieces is one, the number of the positioning pins is two, and the positions of the connecting bolt pieces and the positioning pins form a triangular positioning point.

Through above-mentioned technical scheme, the tie point that forms between support arm and the back of the chair is the triangle setpoint, and connection stability is higher.

Preferably, a certain included angle is formed between the length direction of the locking bolt and the length direction of the chair legs.

Through the technical scheme, when the locking bolt and the connecting pin are connected, the length direction of the locking bolt and the length direction of the chair legs form a certain included angle, at the moment, the locking bolt can directly limit the circumferential rotation of the chair legs, and the probability of looseness of the locking bolt is effectively reduced.

Preferably, the positioning pin is internally provided with a driving rod and an inserting rod in a sliding manner, a sliding channel for the driving rod to slide in the positioning pin is a driving sliding way, and two ends of the driving rod are respectively a driving end and an inclined top end;

the wall of the mounting hole is internally provided with a jack;

the sliding channel for the insertion rod to slide in the positioning pin is a positioning slide way, two ends of the positioning slide way respectively penetrate through the driving slide way and the circumferential end face of the positioning pin, and the inclined top end can abut against the end part of the insertion rod and drive the insertion rod to be inserted into the insertion hole;

and a spring is arranged in the connecting pin and used for driving the inserted rod to move towards one side of the driving rod.

Through the technical scheme, when the positioning pin is positioned in the mounting hole, the locking bolt can be in threaded connection with the positioning pin, an installer can extrude the driving end of the driving rod, the driving rod can move towards the inside of the mounting hole along the driving slide way, the inclined top end of the driving rod can generate extrusion force on the inserted link, and the inserted link can move towards the circumferential end face of the positioning pin along the positioning slide way until the end part of the inserted link is inserted into the insertion hole; at the moment, the inserting rod is inserted into the inserting hole, the whole positioning pin is subjected to a circumferential limiting effect, and the connection stability of the positioning pin is higher;

on the contrary, when the locating pin is required to be pulled out from the mounting hole, the driving rod can be pulled out from the driving slide way, at the moment, the spring can drive the inserted bar to move towards one side of the driving rod, the inserted bar can be pulled out from the jack, and the locating pin can be pulled out from the mounting hole smoothly.

Preferably, the slideway port of the driving slideway faces to one side of the orifice of the mounting hole;

a first limiting block is arranged on the side wall of the driving slide way, a second limiting block is arranged on the rod wall of the driving rod, and the first limiting block and the second limiting block are abutted and used for limiting the driving rod to slide out of the positioning pin;

and a transmission fluted disc is arranged in the positioning pin, the transmission fluted disc is in threaded engagement with the outer thread surface of the locking bolt, a tooth surface is arranged on the face of the driving rod, and the transmission fluted disc is engaged with the tooth surface.

According to the technical scheme, when the locking bolt is screwed into the connecting pin, the locking bolt can drive the transmission gear to rotate, the transmission gear is meshed with the tooth surface, the driving rod can move towards the inside of the mounting hole along the driving slide way, the inclined top end of the driving rod can generate extrusion force on the inserted rod, and the inserted rod can move towards the circumferential end surface of the positioning pin along the positioning slide way until the end part of the inserted rod is inserted into the insertion hole;

when the connecting pin is screwed out by the locking bolt, the locking bolt can drive the transmission gear to rotate reversely, the transmission gear is meshed with the tooth surface, the driving rod can move towards the outer direction of the mounting hole along the driving slide way, on one hand, the spring can drive the inserted rod to move towards one side of the driving rod, the inserted rod can be pulled out from the jack, on the other hand, the end part of the driving rod protrudes out of the end part of the connecting pin, a user uses the end part of the external tool degree driving rod to clamp, the first limiting block abuts against the second limiting block, the relative position between the driving rod and the connecting pin is limited, and the connecting pin can be pulled out smoothly from the mounting hole more conveniently.

Preferably, an extrusion channel is further arranged in the connecting pin, one end of the extrusion channel is communicated with the driving slide way, and the other end of the extrusion channel is communicated with the outer side of the positioning pin and faces to the side away from the orifice of the mounting hole;

the extrusion channel is connected with an extrusion rod in a sliding mode, two ends of the extrusion rod are respectively a stress end and a force application end, the stress end is connected to the driving rod, the force application end is made of rubber materials, and the force application end can be extruded between the positioning pin and the mounting hole.

Through the technical scheme, when the driving rod moves into the mounting hole, the driving rod can simultaneously drive the extrusion rod to move in the same direction, and the force application end made of rubber can be extruded between the outer side wall of the connecting pin and the wall of the mounting hole, so that the extrusion stability between the connecting pin and the mounting hole is improved; when the actuating lever moved toward the mounting hole drill way direction, the actuating lever can be extracted the application of force end that the rubber material was made from between connecting pin lateral wall and the mounting hole drill way, and then has reduced produced extrusion force between connecting pin and the mounting hole by a wide margin, and the dismantlement of connecting pin is easier.

The technical effects of the invention are mainly reflected in the following aspects:

(1) the chair seat and the chair legs adopt an innovative connection mode of a locking bolt and a connecting pin, so that the disassembly and assembly speed is high, and the support stability is high;

(2) the chair back and the supporting arm adopt a triangle positioning principle, so that the connection stability is high;

(3) the connection matching structure between the connecting pin and the mounting hole is improved, so that the connection stability between the connecting pin and the mounting hole is higher, and the disassembly difficulty is smaller.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment;

FIG. 2 is a schematic view, partially in section, of a seat between a leg and a seat in accordance with an embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic bottom view of the second embodiment;

FIG. 5 is a schematic structural view of a support arm and a seatback according to a second embodiment;

FIG. 6 is an enlarged view of the portion B of FIG. 5;

FIG. 7 is a schematic structural view of the third embodiment;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

fig. 9 shows the internal structure of the connecting pin in the fourth embodiment when the driving end of the driving rod protrudes out of the mounting hole.

Reference numerals: 1. a chair surface; 2. a chair leg; 3. a chair back; 4. locking the bolt; 5. mounting holes; 6. a connecting pin; 7. a support arm; 8. a connecting bolt member; 9. positioning pins; 10. positioning holes; 11. a drive rod; 111. a driving end; 112. a beveled tip; 12. a drive slide; 13. inserting a rod; 14. positioning the slideway; 15. a jack; 16. a first stopper; 17. a second limiting block; 18. a transmission fluted disc; 19. a tooth surface; 20. an extrusion channel; 21. an extrusion stem; 211. a force-bearing end; 212. a force application end; 22. a spring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

The first embodiment is as follows:

a quick-dismantling chair with high support stability is shown in figure 1 and comprises a chair seat 1 and chair legs 2. The surface and the chair legs 2 are arranged in a split mode, the chair legs 2 are arranged at the lower position of the chair surface 1, and the chair legs 2 are used for providing supporting force for the chair surface 1.

Referring to fig. 2 and 3, a mounting hole 5 is provided on the chair push, and the aperture of the mounting hole 5 is gradually reduced from the opening of the mounting hole 5 to the hole of the mounting hole 5.

A connecting pin 6 is mounted in the mounting hole 5, and the shape of the connecting pin 6 is adapted to the shape of the mounting hole 5.

A locking bolt 4 is arranged corresponding to each chair leg 2, the locking bolt 4 sequentially penetrates through the chair surface 1 and the chair legs 2, and the bolt head of the locking bolt 4 penetrates into the mounting hole 5 and is in threaded connection with the connecting pin 6.

Referring to fig. 4, taking four legs 2 provided on a single seat 1 as an example, the openings of the mounting holes 5 on all the legs 2 face the middle side of the seat 1.

Example two:

on the basis of the first embodiment, the following technical features are added.

Referring to fig. 5, a chair back 3 is further provided, two support arms 7 are integrally formed by bending the chair surface 1 back to the side of the chair legs 2, and two ends of the chair back 3 are respectively connected to the two support arms 7 through connecting pieces.

Referring to fig. 5 and 6, the connecting member includes a connecting bolt member 8 and a positioning pin 9, the positioning pin 9 is fixedly mounted on the supporting arm 7, the seat back 3 is provided with a positioning hole 10 for inserting the positioning pin 9, and the connecting bolt member 8 is connected between the supporting arm 7 and the seat back 3.

Referring to fig. 2, the number of the connecting bolt pieces 8 is one, the number of the positioning pins 9 is two, and the positions of the connecting bolt pieces 8 and the positioning pins 9 form a triangular positioning point.

Example three:

Referring to fig. 7, the length direction of the locking bolt 4 forms an angle with the length direction of the chair leg 2.

Example four:

on the basis of the first embodiment, the second embodiment or the third embodiment, the following technical features are added.

Referring to fig. 7 and 8, a driving slideway 12 is arranged in the positioning pin 9, and the driving slideway 12 is communicated with the side wall of the connecting pin 6 close to the opening of the mounting hole 5. A driving rod 11 is slidably arranged in the driving slideway 12, two ends of the driving rod 11 are a driving end 111 and an inclined top end 112 respectively, the driving end 111 is located at one side of the hole close to the mounting hole 5, and two wedge-shaped surfaces are arranged on the inclined top end 112.

Referring to fig. 7 and 8, the positioning pin 9 is provided with two positioning slideways 14, the number of the positioning slideways 14 is preferably two, the two positioning slideways 14 are correspondingly arranged at the peripheral positions of the driving slideway 12, one end of each positioning slideway 14 is communicated with the inside of the driving slideway 12, and the other end of each positioning slideway 14 is communicated with the circumferential end surface of the positioning pin 9. Inserted bars 13 are arranged in each positioning slideway 14 in a sliding manner, and the end parts of the inserted bars 13 correspond to the two wedge-shaped surfaces one by one.

The hole wall of the mounting hole 5 is provided with insertion holes 15 corresponding to the insertion rods 13 one by one.

A spring 22 is installed in the connecting pin 6, and the spring 22 is used for driving the insert rod 13 to move towards the driving rod 11 side.

The driving rod 11 can generate extrusion force with the corresponding inserted link 13 through the inclined top end 112, and the inserted link 13 can be correspondingly inserted into the insertion hole 15; when the inclined top 112 is separated from the plunger 13, the spring 22 can drive the plunger 13 to be pulled out of the insertion hole 15.

In addition, referring to fig. 8 and 9, a transmission fluted disc 18 is installed in the positioning pin 9, the transmission fluted disc 18 is in threaded engagement with the external thread surface of the locking bolt 4, a tooth surface 19 is arranged on the face of the driving rod 11, and the transmission fluted disc 18 is in engagement with the tooth surface 19; the locking bolt 4 can be meshed with the transmission gear disc 18, the transmission gear disc 18 rotates, the transmission gear disc 18 is meshed with the tooth surface 19, and then the transmission gear disc 18 drives the driving rod 11 to move.

An extrusion channel 20 is further arranged in the connecting pin 6, one end of the extrusion channel 20 is communicated with the driving slideway 12, and the other end of the extrusion channel 20 is communicated with the outer side of the positioning pin 9 and faces to the side away from the hole opening of the mounting hole 5.

An extrusion rod 21 is slidably connected in the extrusion channel 20, two ends of the extrusion rod 21 are respectively a force bearing end 211 and a force applying end 212, the force bearing end 211 is connected to the driving rod 11, the force applying end 212 is made of rubber, and the force applying end 212 can be extruded between the positioning pin 9 and the mounting hole 5.

A first limit block 16 is arranged on the side wall of the driving slideway 12, and the first limit block 16 is positioned at the slideway port of the driving slideway 12 close to the orifice of the mounting hole 5. A second limit block 17 is arranged on the wall of the driving rod 11, and the first limit block 16 abuts against the second limit block 17 and is used for limiting the driving rod 11 to slide out of the positioning pin 9;

in the specific use process:

during installation, referring to fig. 7 and 8, the locking bolt 4 penetrates the seat 1, the seat leg 2 is installed on one side of the seat 1, the driving rod 11 in the connecting pin 6 is pulled outwards until the first limiting block 16 abuts against the second limiting block 17, the connecting pin 6 in this state is inserted into the installation hole 5, the bolt head of the locking bolt 4 penetrates into the seat leg 2 and is in threaded connection with the connecting pin 6, the locking bolt 4 is rotated forward with reference to fig. 8, the locking bolt 4 drives the transmission gear disc 18 to rotate, the transmission gear disc 18 drives the driving rod 11 to move towards the direction of the inserted link 13, two oblique top ends 112 at the end of the driving rod 11 respectively generate extrusion force on the two inserted links 13, the inserted link 13 overcomes the elastic force of the spring 22, the inserted link 13 moves towards the direction of the insertion hole 15 until the inserted link 13 is inserted into the insertion hole 15, and at the same time, the driving rod 11 also drives the extrusion rod 21 to move synchronously, the force application end 212 at the end of the pressing rod 21 is pushed and pressed between the connecting pin 6 and the wall of the mounting hole 5; after the actions are completed, not only is circumferential positioning realized between the connecting pin 6 and the mounting hole 5, but also the chair seat 1 and the chair legs 2 are firmly tensioned by the locking bolt 4, and the structural stability is high.

The positioning hole 10 on the chair back 3 can be mutually inserted and positioned with the positioning pin 9, and then the connecting bolt piece 8 is connected between the chair back 3 and the supporting arm 7, so that the stable connection and positioning between the chair back 3 and the supporting arm 7 are realized.

When the device is disassembled, referring to fig. 9, the locking bolt 4 is rotated reversely, the locking bolt 4 drives the transmission fluted disc 18 to rotate reversely, the transmission fluted disc 18 drives the driving rod 11 to move back from the direction of the inserted rods 13, the end parts of the two inserted rods 13 can be gradually separated from the driving rod 11, the spring 22 drives the two inserted rods 13 to move towards each other until the inserted rods 13 are completely pulled out from the insertion holes 15, at the same time, the driving rod 11 will drive the pressing rod 21 to move synchronously, and the force application end 212 at the end of the pressing rod 21 will be drawn out from between the connecting pin 6 and the hole wall of the mounting hole 5, at this time, when the first limiting block 16 and the second limiting block 17 are abutted, the driving end 111 of the driving rod 11 protrudes out of the orifice of the mounting hole 5, a disassembling person can use an external tool to clamp the driving end 111 of the driving rod 11, and the abutting limiting function of the first limiting block 16 and the second limiting block 17 enables the whole connecting pin 6 to be smoothly pulled out of the mounting hole 5.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. The utility model provides a quick detach dress high support stability chair, includes seat (1), chair leg (2), characterized by: still include locking bolt (4), seat (1) with adopt the components of a whole that can function independently to set up between chair leg (2), be equipped with mounting hole (5) on chair leg (2), install connecting pin (6) in mounting hole (5), locking bolt (4) pass seat (1), chair leg (2) in proper order, the bolt head of locking bolt (4) penetrates in mounting hole (5) and threaded connection in connecting pin (6).

2. A chair with high support stability, which can be disassembled and assembled quickly as claimed in claim 1, wherein: the aperture of the mounting hole (5) is gradually reduced from the orifice of the mounting hole (5) to the hole of the mounting hole (5), and the shape of the connecting pin (6) is matched with that of the mounting hole (5).

3. A chair with high support stability, which can be disassembled and assembled quickly as claimed in claim 2, wherein: the opening of the mounting hole (5) on the chair leg (2) faces to one side of the middle part of the chair surface (1).

4. A chair with high support stability, which can be disassembled and assembled quickly as claimed in claim 1, wherein: still include back of the chair (3), seat (1) is to keeping away from chair leg (2) one side integrative buckling type is formed with two support arms (7), back of the chair (3) both ends are connected respectively on two support arms (7) through the connecting piece.

5. The chair of claim 4, wherein the chair is characterized in that: the connecting piece is including connecting bolt spare (8), locating pin (9) fixed mounting is on support arm (7), be equipped with on back of the chair (3) and supply locating pin (9) male locating hole (10), connecting bolt spare (8) is connected between support arm (7) and back of the chair (3).

6. A chair with high support stability, which can be disassembled and assembled quickly as claimed in claim 5, wherein: the number of the connecting bolt pieces (8) is one, the number of the positioning pins (9) is two, and triangular positioning points are formed at the positions of the connecting bolt pieces (8) and the positioning pins (9).

7. A chair with high support stability, which can be disassembled and assembled quickly as claimed in claim 1, wherein: the length direction of the locking bolt (4) and the length direction of the chair legs (2) form a certain included angle.

8. A chair with high support stability and capable of being disassembled and assembled quickly and easily according to any one of claims 1 to 7, wherein: a driving rod (11) and an inserting rod (13) are arranged in the positioning pin (9) in a sliding manner, a sliding channel for the driving rod (11) to slide in the positioning pin (9) is a driving slide way (12), and a driving end (111) and an inclined top end (112) are respectively arranged at two ends of the driving rod (11);

the wall of the mounting hole (5) is internally provided with a jack (15);

a sliding channel for the insertion rod (13) to slide in the positioning pin (9) is a positioning slide way (14), two ends of the positioning slide way (14) respectively penetrate through the driving slide way (12) and the circumferential end surface of the positioning pin (9), and the inclined top end (112) can abut against the end part of the insertion rod (13) and drive the insertion rod (13) to be inserted into the insertion hole (15);

a spring (22) is installed in the connecting pin (6), and the spring (22) is used for driving the inserted bar (13) to move towards one side of the driving bar (11).

9. A chair of claim 8, wherein the chair is characterized in that:

the slideway port of the driving slideway (12) faces to one side of the orifice of the mounting hole (5);

a first limiting block (16) is arranged on the side wall of the driving slide way (12), a second limiting block (17) is arranged on the wall of the driving rod (11), and the first limiting block (16) is abutted against the second limiting block (17) and used for limiting the driving rod (11) to slide out of the positioning pin (9);

install transmission fluted disc (18) in locating pin (9), transmission fluted disc (18) with the external screw surface looks thread engagement of locking bolt (4), be equipped with flank of tooth (19) on drive rod (11) face of the pole, transmission fluted disc (18) and flank of tooth (19) mesh mutually.

10. A chair with high support stability, which can be disassembled and assembled quickly as claimed in claim 9, wherein: an extrusion channel (20) is further arranged in the connecting pin (6), one end of the extrusion channel (20) is communicated with the driving slide way (12), and the other end of the extrusion channel (20) is communicated with the outer side of the positioning pin (9) and faces to the side away from the orifice of the mounting hole (5);

the extrusion channel (20) is connected with an extrusion rod (21) in a sliding mode, two ends of the extrusion rod (21) are respectively a stress end (211) and a force application end (212), the stress end (211) is connected to the driving rod (11), the force application end (212) is made of rubber materials, and the force application end (212) can be extruded between the positioning pin (9) and the mounting hole (5).