CN216627984U - Chair leg device capable of reducing packaging volume - Google Patents

Abstract

The utility model discloses a chair leg device capable of reducing the packaging volume, which comprises a connecting base body and a central clamping piece, wherein the connecting base body is provided with a connecting groove; the central clamping piece can be embedded into and clamped in the connecting base body; a hollow part is arranged at the central position of the upper end of the connecting base body, and an upper cover plate matched with the outline of a notch at the upper end of the hollow part is correspondingly arranged at the upper end of the central clamping piece; the shape of the notch of the hollow part at the upper end of the connecting base body and the shape of the upper cover plate are both configured into polygons; in the assembling state of the chair legs, the central clamping piece is clamped and fixed in the connecting base body, and the upper cover plate seals the notch at the upper end of the hollow part; in a packaging state, the central clamping piece is placed in the hollow part, the upper cover plate is lapped on the upper end face of the connecting base body to limit the clamping connection of the central clamping piece and the connecting base body, and the connecting base body and the central clamping piece are packaged and transported integrally; the central clamping piece and the connecting base body can be packed and transported together, and the central clamping piece and the connecting base body cannot be clamped together; the packaging volume can be reduced, and the transportation cost is saved.

Description

Chair leg device capable of reducing packaging volume

Technical Field

The utility model relates to the field of seats, in particular to a chair leg device capable of reducing the packaging volume.

Background

The chair feet of most of the existing office chairs are in a five-claw shape and mainly comprise a central seat and five support legs which uniformly extend outwards along the periphery of the central seat, and most of the five-claw-shaped chairs are of an integrated structure or are bulky or heavy, and the chair feet are integrated and cannot be detached; when the chair legs are packaged and transported, the whole chair legs need to be packaged, the carrying is very inconvenient in the storage and transportation process, the occupied space is large, large storage and transportation resources are consumed, and the storage and transportation cost is increased. In order to facilitate transportation and reduce the volume of the chair legs, more detachable chair legs are designed on the market at present, namely, a central seat and support legs of the chair legs can be detached and are packaged separately during transportation; during assembly, the support legs are fixed on the central seat through connecting pieces such as screws. Although the structure for realizing the disassembly and assembly of the chair leg through the screw has a plurality of advantages, the disassembly and assembly of the chair leg also has a plurality of defects, for example, the screw fixation needs tools such as a screwdriver, so that the assembly and the disassembly are not very convenient; and during connection, the hole positions also need to be accurately aligned and then installed in connection, which results in inconvenient operation.

In the existing chair leg dismounting structure, a clamping piece is additionally arranged in a center seat of a chair leg, and the clamping piece can be embedded and installed in the center seat; during assembly, the five support legs are respectively connected in the central seat, and then the clamping piece is clamped and installed in the central seat; the clamping piece is embedded in the central seat and can be respectively matched with the five support legs in an inserting manner; thereby the clamping piece and the support leg are relatively fixed, and the assembly of the chair leg is realized. Adopt this connection structure, make center seat and stabilizer blade can quick assembly disassembly through joint spare. However, this structure has problems in that: compared with the traditional chair leg structure which only comprises a central seat and two support legs, the chair leg structure has the additional part of a clamping piece; when in packaging, the center seat, the clamping piece and the support leg need to be packaged and transported respectively, so that the packaging volume is increased; contrary to the original design, the packaging volume needs to be further optimized based on the structure.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a chair leg device which can reduce the packaging volume; the central clamping piece can be embedded in the hollow-out part of the connecting base body, and the shape of the upper cover plate at the upper end of the central clamping piece and the shape of the notch of the hollow-out part at the upper end of the connecting base body are configured into a polygon; in a packaging state, the central clamping piece can be placed in the hollow part, the upper cover plate is in lap joint with the upper end face of the connecting base body, the central clamping piece and the connecting base body can be packaged and transported together, and the central clamping piece and the connecting base body cannot be clamped together; thereby reducing the packaging volume and saving the transportation cost.

The technical scheme of the utility model is realized as follows:

a chair leg device capable of reducing the packaging volume comprises a connecting base body and a central clamping piece; the central clamping piece can be embedded into and clamped in the connecting base body; a hollow part for accommodating the central clamping piece is arranged at the central position of the upper end of the connecting base body, and an upper cover plate matched with the hollow part in the outline size of the notch at the upper end of the connecting base body is correspondingly arranged at the upper end of the central clamping piece; the shape of the notch of the hollow part at the upper end of the connecting base body and the shape of the upper cover plate are both configured into polygons; in the assembling state of the chair legs, the central clamping piece is clamped and fixed in the connecting base body, and the upper cover plate seals the notch at the upper end of the hollow part; under the packing state, center fastener places in fretwork portion, and the upper cover plate overlap joint is in order to restrict center fastener and be connected the base member joint on the up end of connecting the base member, connects the base member and wholly packs the transportation with center fastener.

Preferably, the outline of the notch of the hollow part at the upper end of the connecting base body is pentagonal, and the upper cover plate is configured into a pentagonal structure matched with the upper cover plate. The upper cover plate is of a pentagonal structure, so that in a packaging state, the upper cover plate can rotate relative to the notch at the upper end of the hollow part to enable the upper cover plate and the hollow part to be staggered; the corners of the upper cover plate can be placed on the upper end surface of the connecting base body; and the pentagon and the five-claw chair leg structure are mutually corresponding, so that the structure is beautiful and unobtrusive.

Preferably, the upper cover plate is provided with an outwards protruding corner, and a corner groove is correspondingly formed in the notch at the upper end of the hollow part; under the packing state, every corner of upper cover plate is overlap joint respectively on the up end of connecting the base member, and the position of every corner is located the intermediate position department of two adjacent corner grooves. In a packaging state, each corner is lapped at the middle position of two adjacent corner grooves, so that the upper cover plate is prevented from being downwards embedded into the hollow part due to mistaken touch; and the whole packaging structure is symmetrical, and the structure is beautiful.

Preferably, each corner of the upper cover plate is provided with a hanging lug protruding downwards, and the corresponding positions of the upper end surface of the connecting base body are provided with clamping grooves; under the packing state, every corner of upper cover plate is the overlap joint respectively at the up end of connecting the base member, the hangers joint in the draw-in groove. The hangers are clamped in the clamping grooves, the rotation of the upper cover plate relative to the connecting base body can be limited, and the situation that the clamping is self-locked due to rotation when the upper cover plate and the lower cover plate are transported together is avoided.

Preferably, in a packaged state, a packing and bundling belt wound around the outer surfaces of the center clip piece and the connecting base is arranged outside the center clip piece and the connecting base. The two can be further stably stacked without position deviation.

Preferably, one of the central clamping piece or the connecting base body is provided with a vertical snap, and the other of the central clamping piece or the connecting base body is correspondingly provided with a bayonet. The central clamping piece is matched with the connecting base body in a vertically clamped manner, so that the connection is very convenient.

Preferably, the elastic buckles are arranged on the central clamping piece at intervals along the circumferential direction, and are arranged vertically downwards; a space is arranged between the lower end of the elastic buckle and the central clamping piece, so that the elastic buckle can elastically deform along the radial direction of the central clamping piece; the bayonet is correspondingly arranged on the inner wall of the hollow part along the circumferential direction. The elastic buckle is contracted and then clamped into the clamping opening, so that the central clamping piece and the connecting base body are not easy to separate up and down after being clamped.

Preferably, the chair leg unit is arranged on the connecting base body along the circumferential direction, and the chair leg unit is detachably connected with the connecting base body; the end part of each chair leg unit is correspondingly provided with an inserting block, and the connecting base body is provided with mounting grooves which are uniformly distributed at intervals along the circumferential direction of the connecting base body; the inserting block is inserted into the hollow part through the mounting groove; when the central clamping piece is clamped in the hollow-out part, the central clamping piece is respectively in up-and-down inserting fit with each inserting block. Therefore, the central clamping piece is clamped with the connecting base body to play a role in fixing the chair leg unit; therefore, the connecting base body can be fast fixed with the chair foot unit, and the installation is convenient and fast.

The design starting point, the idea and the beneficial effects of the utility model adopting the technical scheme are as follows:

firstly, the chair leg device capable of reducing the packaging volume is characterized in that the central clamping piece can be clamped in the hollow part of the connecting base body during assembly, the upper end of the central clamping piece is provided with an upper cover plate, the shape and size of the outline of the upper cover plate are matched with those of the outline of the notch of the hollow part at the upper end of the connecting base body, and the notch at the upper end of the hollow part and the upper cover plate are arranged into polygonal shapes (such as pentagons), so that the upper cover plate can rotate for a certain angle and is overlapped and placed at the upper end of the connecting base body in a packaging state, the central clamping piece and the connecting base body can be packaged together, and the central clamping piece and the connecting base body cannot be clamped together; the packaging volume can be further reduced, and the transportation cost is saved.

Secondly, hanging lugs extending downwards are arranged at the corners of the upper cover plate, and clamping grooves are respectively arranged at the corresponding positions of the upper end surface of the connecting base body; in a packaging state, each corner of the upper cover plate is respectively lapped on the upper end surface of the connecting base body, the hangers are clamped in the clamping grooves, the rotation of the upper cover plate relative to the connecting base body can be limited, and the situation that clamping self-locking is caused by rotation when the upper cover plate and the connecting base body are transported together is avoided; and in a packaging state, a packaging and binding belt wound on the outer surfaces of the center clamping piece and the connecting base body is further arranged outside the center clamping piece and the connecting base body. Therefore, the two can be stacked stably without position deviation.

In addition, during assembly, the central clamping piece can be clamped in the hollow-out part of the connecting base body, and the chair foot unit and the connecting base are relatively fixed; after the central clamping piece is embedded in the connecting base body, the upper cover plate can also seal the notch at the upper end of the hollow part, so that the structure is simple and attractive; the installation structure is simple, and the installation is convenient for a user to install by himself.

Drawings

FIG. 1 is a perspective view of the chair leg of the present invention after being assembled;

FIG. 2 is an exploded view of the chair leg assembly in an embodiment of the present invention;

FIG. 3 is a schematic perspective view of the chair leg unit and the connection base after being inserted;

FIG. 4 is a schematic perspective view of the chair leg unit and the connection base in the embodiment of the utility model;

FIG. 5 is a schematic perspective view of a center clip according to an embodiment of the present invention;

FIG. 6 is a side sectional view of the chair foot of the present invention after being assembled in the embodiment;

FIG. 7 is a schematic bottom perspective view of the assembled chair leg according to the embodiment of the present invention;

FIG. 8 is a schematic perspective view of a connection base according to an embodiment of the present invention;

FIG. 9 is a schematic perspective view of a connecting base and a center clip for packaging in accordance with an embodiment of the present invention;

FIG. 10 is a perspective view of the base and center clip in a packaged state according to the embodiment of the utility model.

The figures are numbered: a connection base 1; a chair leg unit 2; a center clip 3; connecting the upright posts 3 a; clamping the base enclosing body 3 b; a chair rod mounting hole 3 c; a hollowed-out part A; a splice 4; a mounting groove 5; an insert block 6; a root portion 6 a; a head portion 6 b; supporting the inner ring 7; a spring buckle 8; a bayonet 9; a limiting hook 10; a support plate 10 a; a vertical plate 10b is inserted; a limiting groove 11; a plug-in groove 12; an upper cover plate 13; a suspension loop 13 a; a card slot 14.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more than one unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific implementation mode of the utility model is as follows:

as shown in fig. 1 to 10, the present invention provides a chair leg device capable of reducing a packaging volume, comprising a connection base 1, a chair leg unit 2 and a center clip 3; the central position department of connecting base member 1 be equipped with hollow portion A of fretwork from top to bottom, and connect base member 1 and include splice 4 that sets up along its circumferential direction even interval, splice 4 is connected base member 1 and is outwards stretched out relatively. The chair leg units 2 are detachably connected with the splicing parts 4, and the number of the chair leg units 2 is the same as that of the splicing parts 4; in this embodiment, the chair leg structure is specifically a general five-pointed star-shaped chair leg, so the number of the chair leg units 2 and the number of the splicing parts 4 are all five. An installation groove 5 penetrating through the hollow part A is formed in the end face, away from the center direction of the connecting base body 1, of each splicing part 4, and an insertion block 6 is correspondingly arranged at the end part of the chair leg unit 2, wherein each insertion block 6 comprises a root part 6a and a head part 6 b; a circle of bearing inner ring 7 extending towards the central direction of the connecting base body is arranged in the hollow part A; when the chair leg unit 2 is assembled with the connecting base body 1, the inserting block 6 is inserted into the installing groove 6, the root part 6a of the inserting block 6 is embedded into the installing groove 5, and the head part 6b of the inserting block 6 is exposed above the bearing inner ring 7; the central clamping piece 3 is configured to be embedded and installed in the hollow part A of the connecting base body 1 along the vertical direction; the central clamping piece 3 is in clamping fit with the connecting base body 1; be equipped with the bullet on one of them of central fastener 3 or connection base member 1 and detain 8, be equipped with bayonet socket 9 on central fastener 3 or the corresponding another of connecting base member 1, then need not through screwed connection, it is more convenient to connect. And when the central clamping piece 3 is clamped in the hollow part A, the head 6b of each insertion block 6 is respectively in up-and-down inserting fit with the corresponding position of the central clamping piece 3, so that the central clamping piece 3 can limit and fix the chair leg unit 2. During assembly, each chair foot unit 2 is inserted into the connecting base body 1, and then the central clamping piece 3 is clamped in the hollow part A of the connecting base body 1; the central clamping piece 3 can simultaneously fix each chair leg unit 2; simple structure is reliable, and the installation is very convenient and fast.

As shown in fig. 1-5 and 8, the center clip member 3 includes a longitudinal connecting pillar 3a and a clip base enclosure 3b disposed around an upper outer surface of the connecting pillar 3 a; and still be equipped with the chair pole mounting hole 3c that runs through from top to bottom in the center department of center fastener 3, then 3 joints of center fastener are in connecting base member 1 back, chair pole mounting hole 3c just can be used for connecting the chair pole of seat for center fastener 3 can enough be used for fixed chair foot unit 2, can also regard as the fitting piece of connecting seat chair pole, and design benefit kills two birds with one stone. The height of the central clamping piece 3 is matched with that of the hollow part A in the connecting base body 1; after the central clamping piece 3 is clamped in the hollow part A, the clamping base enclosure body 3b is positioned above the bearing inner ring 7 and is abutted up and down, the connecting upright post 3a is continuously penetrated in the bearing inner ring 7 downwards from the lower end of the clamping base enclosure body 3b, and the bottom of the connecting upright post 3a is flush with the bottom of the connecting base body 1; therefore, the central clamping piece 3 can be filled in the hollow part A, and after the central clamping piece 3 is combined with the connecting base body 1, the two parts can be regarded as a whole, so that the integrity is good.

As shown in fig. 3-7, the head 6b of the insertion block 6 has an L-shaped limiting hook 10, and the limiting hook 10 includes a supporting plate 10a extending horizontally toward the center of the connection base 1 and an upright plate 10b disposed at the end of the supporting plate 10a and extending upward. The shape and size of the root 6a of the insert block 6 are matched with the shape and size of the mounting groove 5, and the length of the root 6a of the insert block 6 is matched with the depth of the mounting groove 5; thereby make when the inserted block 6 inserts mounting groove 5, the root 6a of inserted block 6 will closely combine with mounting groove 5 to make chair foot unit 2 be connected closely with concatenation portion 4, make the root a of inserted block 6 can not rock in mounting groove 5. As shown in fig. 3 and 4, a downward-recessed limiting groove 11 is formed in a position corresponding to the mounting groove 5 at the upper end of the inner bearing ring 7, after the insertion block 6 is inserted, the head 6b of the insertion block 6 is just embedded into the limiting groove 11, and the width of the limiting groove 11 is matched with the width of the support plate 10a, so that after the head 6b of the insertion block 6 is embedded into the limiting groove 11, the limiting groove 11 can further limit the insertion block 6 to move left and right, and further limit the chair leg unit 2.

As shown in fig. 2 to 8, after each leg unit 2 is inserted into the connecting base 1, the vertical insertion plates 10b at the end of each leg unit 2 are spaced apart from each other along the circumferential direction of the inner support ring 7. As shown in fig. 5, correspondingly, the clamping base enclosure 3b is provided with insertion grooves 12 capable of being inserted into the insertion vertical plates 10b at intervals along the circumferential direction, and an opening of the insertion groove 12 is located at the bottom of the clamping base enclosure 3 b. Therefore, when the central clamping piece 3 is embedded and installed in the hollow part A, the inserting vertical plate 10b of the head part 6b of each inserting block 6 is matched with the inserting groove 12 at the corresponding position of the clamping base enclosing body 3b in an up-and-down inserting manner. After the vertical inserting plate 10b is vertically inserted and matched with the inserting groove 12, the central clamping piece 3 can limit the chair leg unit 2 to be separated from the connecting base body 1 outwards. Further, after the central clamping piece 3 is clamped in the hollow part A, the clamping base enclosing body 3b is positioned above the bearing inner ring 7, and the clamping base enclosing body and the bearing inner ring are in vertical butt joint; the supporting plate 10a of the head 6b of the inserting block 6 is embedded in the limiting groove 11 of the bearing inner ring 7, and the inserting vertical plate 10b of the head 6b of the inserting block 6 is inserted in the inserting groove 12 of the clamping base enclosing body 3 b; so that the head 6b of the insert 6 will be clamped and limited between the inner bearing ring 7 and the clamping base enclosure 3b, thereby limiting the up-and-down deviation of the insert 6. In summary, after the central clip member 3 is clamped in the connecting base 1 and is in inserting fit with the chair leg unit 2, the central clip member 3 can limit the chair leg unit 2 to be separated from the connecting base 1 and limit the chair leg unit 2 to be deviated in the left-right and up-down directions; the chair leg unit 2 and the connecting base 1 are relatively fixed and tightly combined.

As shown in fig. 3-6, the elastic buckles 8 are also arranged at intervals along the circumferential direction at the outer side of the clamping base enclosure 3b, the elastic buckles 8 are arranged vertically downward, and an interval is formed between the lower ends of the elastic buckles 8 and the clamping base enclosure 3b, so that the elastic buckles 8 can be elastically deformed along the radial direction of the central clamping piece 3; and each snap 8 is arranged just between two adjacent insertion grooves 12. The bayonets 9 are correspondingly arranged on the inner wall of the hollow part A at intervals along the circumferential direction, and the bayonets 9 are arranged at the joint of the bearing inner ring 7 and the inner wall of the hollow part A; each bayonet 9 is arranged between two adjacent mounting grooves 5. After the central clamping piece 3 is completely embedded in the hollow part A, the elastic buckles 8 are just clamped in the bayonets 9 at the corresponding positions. Therefore, the connection is very convenient and fast, screws are not needed, and the assembly can be completed only by downwards clamping the central clamping piece 3 into the connecting base body 1. The structure layout is reasonable, and the bayonets 9 are arranged between two adjacent mounting grooves 5 in the connecting base body 1; arranging the elastic buckle 8 between two adjacent inserting grooves 12 of the clamping base enclosure body 3 b; therefore, the structures are not interfered mutually, and the structure is regular and convenient to process; the center clamping piece 3 is clamped with the connecting base body 1, and meanwhile, the center clamping piece 3 is inserted into the chair foot unit 2.

Furthermore, as shown in fig. 1 and 2, an upper cover plate 13 is disposed at the upper end of the center clip 3, and the shape and size of the outer contour of the upper cover plate 13 are matched with the shape and size of the notch at the upper end of the connecting base 1 of the hollow part a. Thereby make central fastener 3 embedding install in connecting base member 1 back, upper cover plate 13 will be in the same place with the up end concatenation of connecting base member 1, and upper cover plate 13 can seal fretwork portion A upper end notch for central fastener 3 forms a whole with connecting base member 1, hides the connection vestige, pleasing to the eye outward appearance.

Particularly, by adopting the connecting structure, the chair leg units 2 and the connecting base body 1 can be fixed simultaneously through the central clamping piece 3, the mounting steps are simplified, and the assembly and disassembly are convenient. And after the assembly, the three parts are tightly connected, the connecting structure is hidden inside, and the structure is attractive. When the chair leg is assembled and used, the chair rod mounting hole 3c at the center of the central clamping piece 3 is used for connecting the chair rod of the chair, so that when the chair leg supports the chair, the central clamping piece 3 is subjected to vertical downward acting force, and the central clamping piece 3 cannot be separated from the connecting base body 1; furthermore, the chair leg unit 2 is contacted with the ground, and the chair leg unit 2 can simultaneously receive the vertical upward reaction force of the ground; therefore, the center clamping piece 3, the connecting base 1 and the chair foot unit 2 are mutually extruded up and down, the larger the load of the chair is, the larger the extrusion force among the three is, the tighter the splicing between the splicing vertical plate 10b and the splicing groove 12 is, and the root 6a of the splicing block 6 and the upper wall of the mounting groove 5 are mutually extruded, so that the connection is tighter; thereby the connection among the center clamping piece 3, the connection base 1 and the chair foot unit 2 is firmer. Then, the structural stability of the assembled chair legs is in direct proportion to the load borne by the chair legs, so that the connection strength and the support strength of the chair legs can be ensured, and the safety coefficient is higher.

The key points are as follows: the chair legs have a packaging state and a using state; in a packaging state, the chair leg unit 2 and the connecting base body 1 are disassembled and packaged; in a use state, the chair foot unit 2 is spliced with the connecting base body 1, and then the central clamping piece 3 is clamped in the hollow-out part A so that the chair foot unit 2 and the connecting base body 1 are relatively fixed. Therefore, the chair legs can be disassembled and packed when being packed, and the packing volume is saved; when the device is used, the device can be quickly assembled through the central clamping piece, and is convenient for a user to install by himself. And in a packaging state, the central clamping piece 3 can be placed in the connecting base body 1, and the central clamping piece 3 and the connecting base body 1 are integrally packaged and transported, so that the packaging volume is further saved.

Specifically, the method comprises the following steps: the notch of the hollow part A at the upper end of the connecting base body 1 is in a polygonal structure, and in the embodiment, the notch of the upper end of the hollow part A is in a pentagonal shape; correspondingly, an upper cover plate 13 at the upper end of the central clamping piece 3 is arranged into a pentagonal structure matched with the upper cover plate; in the assembled state of the chair legs, the upper cover plate 13 can be embedded into the upper end of the hollow part A and close the notch at the upper end of the hollow part A; and the notch of the upper end of the hollow part A is arranged to be of a pentagonal structure, so that the central clamping piece 3 is very conveniently positioned when being installed with the connecting base body 1, and the elastic buckle 8 is aligned to the bayonet 9. In addition, in a packaging state, as shown in fig. 9 and 10, the center clip 3 can be embedded and placed in the hollow part a, but the center clip 3 and the connecting base 1 are not clamped together; the method specifically comprises the following steps: because the upper cover plate 13 is of a pentagonal structure, the upper cover plate 13 can rotate by a certain angle to be staggered with the notch at the upper end of the hollow part A, so that the upper cover plate 13 can be lapped on the upper end surface of the connecting base body 1; the upper cover plate 13 has five corners protruding outward, each of which is to be lapped on the upper end of the connection base 1, respectively; the purpose of this placement is: the central clamping piece 3 is embedded in the hollow part A of the chair leg unit 2, so that the central clamping piece 3 and the connecting base body 1 can be integrally packaged and transported, and the packaging volume is saved; and the placing mode makes the two not blocked together, and the central clamping piece 3 can be taken out from the chair foot unit 2 at any time. In addition, the notch at the upper end of the hollow part A is correspondingly provided with five corner grooves, under the packaging state, the corners of the upper cover plate 13 are respectively lapped on the upper end surface of the connecting base body 1, and the position of each corner is positioned in the middle of two adjacent corner grooves; the whole packaging structure is symmetrical and beautiful in structure in a packaging state. Furthermore, each corner of the upper cover plate 13 is respectively provided with a hanging lug 13a protruding downwards; clamping grooves 14 are respectively arranged at corresponding positions of the upper end surface of the connecting base body 1; thereby make under the packing state, upper cover plate 13 overlap joint on the up end of connecting base member 1, and hangers 13a joint is in draw-in groove 14, can restrict upper cover plate 13 and connect base member 1 rotatory relatively, the rotatory condition that leads to the joint auto-lock that appears when avoiding both to transport together. In this packaged state, a wrapping band (not shown) is provided around the outer surfaces of the center clip 3 and the connection base 1. The two can be further stably stacked without position deviation. Therefore, in a packaging state, the chair leg units 2 can be disassembled and packaged for transportation; the central clamping piece 3 and the connecting base body 1 can be packed and transported together, and the two are stacked up and down, so that the packing volume is basically consistent with that of a single connecting base body 1, and the transportation cost can be further saved; the structure design is ingenious.

Claims (8)

1. The utility model provides a can reduce chair foot device of packing volume which characterized in that: comprises a connecting base body and a central clamping piece; the central clamping piece can be embedded into and clamped in the connecting base body; a hollow part for accommodating the central clamping piece is arranged at the central position of the upper end of the connecting base body, and an upper cover plate matched with the hollow part in the outline size of the notch at the upper end of the connecting base body is correspondingly arranged at the upper end of the central clamping piece; the shape of the notch of the hollow part at the upper end of the connecting base body and the shape of the upper cover plate are both configured into polygons; in the assembling state of the chair legs, the central clamping piece is clamped and fixed in the connecting base body, and the upper cover plate seals the notch at the upper end of the hollow part; under the packing state, center fastener places in fretwork portion, and the upper cover plate overlap joint is in order to restrict center fastener and be connected the base member joint on the up end of connecting the base member, connects the base member and wholly packs the transportation with center fastener.

2. A chair leg device capable of reducing a packaging volume according to claim 1, wherein: the notch profile of fretwork portion position in the connection base member upper end is the pentagon, the upper cover plate configuration is rather than the pentagon structure that matches.

3. A chair leg device capable of reducing a packaging volume according to claim 1 or 2, wherein: the upper cover plate is provided with an outwards protruded corner, and a corner groove is correspondingly formed in a notch at the upper end of the hollow part; under the packing state, every corner of upper cover plate is overlap joint respectively on the up end of connecting the base member, and the position of every corner is located the intermediate position department of two adjacent corner grooves.

4. A chair leg device capable of reducing the packaging volume according to claim 3, wherein: each edge of the upper cover plate is provided with a hanging lug protruding downwards, and the corresponding positions of the upper end surface of the connecting base body are provided with clamping grooves; under the packing state, every corner of upper cover plate is the overlap joint respectively at the up end of connecting the base member, the hangers joint in the draw-in groove.

5. A chair leg device capable of reducing a packaging volume according to claim 1, wherein: and in a packaging state, a packaging binding belt wound on the outer surfaces of the central clamping piece and the connecting base body is arranged outside the central clamping piece and the connecting base body.

6. A chair leg device capable of reducing a packaging volume according to claim 1, wherein: one of the central clamping piece or the connecting base body is provided with a vertical elastic buckle, and the other one of the central clamping piece or the connecting base body is correspondingly provided with a bayonet.

7. A chair leg device capable of reducing the packaging volume according to claim 6, wherein: the elastic buckles are arranged on the central clamping piece at intervals along the circumferential direction and are arranged vertically downwards; a space is arranged between the lower end of the elastic buckle and the central clamping piece, so that the elastic buckle can elastically deform along the radial direction of the central clamping piece; the bayonet is correspondingly arranged on the inner wall of the hollow part along the circumferential direction.

8. A chair leg device capable of reducing a packaging volume according to claim 1, wherein: the chair leg unit is arranged on the connecting base body along the circumferential direction and is detachably connected with the connecting base body; the end part of each chair leg unit is correspondingly provided with an inserting block, and the connecting base body is provided with mounting grooves which are uniformly distributed at intervals along the circumferential direction of the connecting base body; the inserting block is inserted into the hollow part through the mounting groove; when the central clamping piece is clamped in the hollow-out part, the central clamping piece is respectively in up-and-down inserting fit with each inserting block.

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