Detachable chair leg

Abstract

The utility model provides a detachable chair leg which comprises a chair leg assembly and a connecting piece, the chair leg assembly comprises three chair legs, each chair leg comprises a first splicing part located at the end of the chair leg, and the connecting piece comprises three second splicing parts arranged in a herringbone shape; the first splicing part on the first chair leg is in threaded connection with the second splicing part on the connecting piece, so that the chair legs and the connecting piece can be freely disassembled or assembled, and the packaging size and cost during transportation of the chair legs are reduced; and the screw connection mode is simple and efficient, so that the disassembly and assembly efficiency of the chair legs is improved.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a detachable chair leg. Background Art

[0002] When choosing chair legs, chairs on the market tend to choose herringbone legs, because herringbone legs are simpler than traditional four-legged legs and have a more advanced appearance.

[0003] For example, in the dining chair patent with announcement number CN214207869, the dining chair uses a herringbone support frame, that is, herringbone chair legs to provide stable support for the dining chair and make the chair look more advanced in appearance. Such herringbone chair legs are usually welded or made into mortise and tenon structures, but such a design has defects.

[0004] The processing and assembly steps of chair legs with mortise and tenon structure or welded formation are relatively cumbersome, the process is difficult and the assembly efficiency is low.

[0005] The assembled chair legs cannot be disassembled, which causes the seats using the chair legs to occupy a large space during transportation and maintenance, thereby increasing the transportation and packaging costs of the seats.

[0006] Based on the above problems, it is necessary to design a detachable chair leg, which can efficiently disassemble or assemble the herringbone chair leg without affecting the supporting strength of the chair leg. While improving the efficiency of chair leg assembly, it can also reduce the transportation and packaging costs of the chair. Summary of the invention

[0007] In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a detachable chair leg, by screwing a first splicing portion on the first chair leg and a second splicing portion on a connecting piece, so that the chair leg and the connecting piece can be freely disassembled or assembled, thereby reducing the volume and cost of packaging the chair legs during transportation; and the screw connection method is simple and efficient, thereby improving the efficiency of disassembly and assembly of the chair legs.

[0008] The technical solution of the utility model is achieved in this way:

[0009] A detachable chair leg, comprising:

[0010] The chair leg assembly includes three chair legs, each of which includes a first joint portion located at an end of the chair leg, and the first joint portions of the three chair legs are arranged in a herringbone shape when intersecting and jointing;

[0011] A connecting piece, the connecting piece having three second splicing parts arranged in a herringbone shape;

[0012] The first joint portion on each chair leg is connected to the corresponding second joint portion via screws, thereby splicing the three chair legs into a whole.

[0013] Preferably, the first splicing portion includes a first connecting section for contacting and cooperating with the second splicing portion, and the second splicing portion includes a connecting plate, and vertical plates extend in the same direction on both sides of the connecting plate, and the vertical plates and the connecting plate constitute a U-shaped plate with a U-shaped cross-section; the connecting plate of the U-shaped plate is placed on the first connecting section and is connected by screws, and the vertical plates of the U-shaped plate are abutted against both sides of the first connecting section; when the chair legs are subjected to force and tend to separate from the connecting plates, the vertical plates can be tightly attached to the side positions of the first connecting section, thereby transferring the shear force exerted on the screws to themselves, so that the screws only play a connecting role to prevent the screws from being broken due to excessive shear force.

[0014] Preferably, a through hole is provided on the connecting plate, a first screw hole is provided on the first connecting section, and a screw passes through the through hole and is screwed into the first screw hole to connect the first splicing part with the second splicing part.

[0015] Preferably, a second screw hole corresponding to the position of the through hole is preset on the first connecting section, the inner thread of the second screw hole is matched with a metal threaded sleeve, and the first screw hole is arranged on the metal threaded sleeve; compared with the screw being directly threadedly connected to the second screw hole on the chair leg, the metal threaded sleeve pre-arranged in the second screw hole can provide sufficient locking force after being threadedly connected to the screw.

[0016] Preferably, two inwardly recessed strip avoidance grooves are provided on the outer wall of the first splicing part, and the strip avoidance grooves extend along the length direction of the chair leg, thereby forming the first connecting section between the two strip avoidance grooves. When the first splicing part is connected to the second splicing part, the vertical plate is located in the strip avoidance grooves, so that the vertical plate is hidden in the first splicing part and is not exposed, thereby making the appearance of the assembled chair leg assembly simple and beautiful.

[0017] Preferably, the wall surface on the first connecting section that overlaps with the connecting plate is cut inwardly, thereby forming a groove on the outer wall of the first splicing part, and the strip avoidance groove continues to sink from the groove wall; when the three chair legs are assembled, the three grooves form a herringbone groove, and a herringbone protective cover is connected to the herringbone groove, and the herringbone protective cover seals all the connecting plates on the connecting piece in the herringbone groove; the connecting plate is also hidden in the splicing position of the chair leg, further optimizing the overall appearance of the chair leg assembly after assembly.

[0018] Preferably, a clamping hole is provided on the first connecting section, and a buckle is provided on the herringbone-shaped protective cover, and the buckle is clamped in the clamping hole, thereby connecting the herringbone-shaped protective cover in the herringbone-shaped sink groove.

[0019] Preferably, a U-shaped groove is formed between the connecting plate and the vertical plate on the U-shaped plate. On the connecting piece, the U-shaped grooves of the three U-shaped plates are interconnected. When the three chair legs are spliced ​​into a whole, the first connecting sections of the three chair legs are located in the corresponding U-shaped grooves on the connecting piece and abut against each other. There is no gap between the abutting chair legs, so that the chair legs will not loosen easily after being subjected to force, eliminating the shaking or abnormal noise that may be caused by loosening, and improving the use experience of the chair legs.

[0020] Preferably, the connector is made of metal material, and is an integrally formed sheet metal part or an open mold part; the integrally formed metal connector has high structural strength and can withstand the greater force transmitted by the chair legs.

[0021] Preferably, the chair legs are made of wood or plastic. Chair legs made of wood or plastic have low cost, high structural strength and long service life.

[0022] The beneficial effects of the utility model using the above technical solution are:

[0023] The utility model provides a detachable chair leg, which is different from the prior art in that:

[0024] 1. The chair legs and the connecting parts are detachably connected by simple screw disassembly and assembly. The detachable chair legs can be disassembled into multiple sections during transportation, which reduces the volume and cost occupied by the chair legs during transportation. After the chair legs are assembled, the second splicing part on the connecting part can be placed on the first splicing part at the end of the chair legs, so that the chair legs are combined into a whole that can provide stable support.

[0025] 2. When disassembling the chair legs, you only need to assemble or remove the screws to splice or disassemble the chair legs. The screw connection method is simple and efficient, which improves the efficiency of disassembly and assembly between the chair legs.

[0026] 3. The herringbone cover and strip avoidance groove can hide the U-shaped plate in the joint of the chair legs, so that the chair legs appear to have no splicing marks in appearance, thus optimizing the appearance of the chair legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an exploded view of the chair legs;

[0028] Figure 2 This is an exploded view of the chair legs from another angle;

[0029] Figure 3 This is a cross-sectional view of the chair legs after they are connected;

[0030] Figure 4 It is a structural diagram of the connection position of the chair legs;

[0031] Figure 5 This is a schematic diagram of the structure after the chair legs are assembled;

[0032] Figure 6 This is a schematic diagram of the structure after the chair legs are assembled and applied to the seat;

[0033] The figures are marked as follows: 1-chair leg, 2-herringbone protective cover, 3-metal threaded sleeve, 4-connecting piece, 11-clamping hole, 12-second screw hole, 13-sunk groove, 13a-herringbone groove, 14-first connecting section, 15-strip avoidance groove, 21-buckle, 31-first screw hole, 41-U-shaped plate, 42-through hole, 43-screw, 44-avoidance hole, 45-U-shaped groove, 411-connecting plate, 412-vertical plate. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of the present invention, the term "at least one" refers to one or more than one, unless otherwise clearly defined. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0037] The specific implementation of the utility model is as follows:

[0038] like Figure 1-6 As shown, the utility model provides a detachable chair leg, comprising:

[0039] The chair leg assembly includes three chair legs 1, wherein the chair legs 1 include a first joint portion located at the end of the chair legs 1, and the first joint portions of the three chair legs 1 are arranged in a herringbone shape when intersecting and splicing; and in a disassembled state, the three chair legs 1 can be arranged side by side and close to each other to help reduce the volume occupied by the package;

[0040] A connecting member 4, wherein the connecting member 4 has three second splicing portions arranged in a herringbone shape;

[0041] The first joint portion on each chair leg 1 is connected to the corresponding second joint portion via a screw 43 , thereby making the three chair legs 1 joined together as a whole.

[0042] Furthermore, if the first joint is connected only by screws 43, when the chair leg 1 is subjected to force, the screws 33 will continue to be subjected to shear force, which may easily cause the screws 43 to break. To avoid the situation where the screws 43 break, a U-shaped joint structure is adopted between the first joint and the second joint, wherein the first joint includes a first connecting section 14 for contacting and cooperating with the second joint, and the second joint includes a connecting plate 411, and two sides of the connecting plate 411 extend in the same direction with vertical plates 412, and the vertical plates 412 and the connecting plate 411 constitutes a U-shaped plate 41 with a U-shaped cross section; the connecting plate 411 of the U-shaped plate 41 is placed on the first connecting section 14 and connected by screws 43, and the vertical plates 412 of the U-shaped plate 41 are close to the two sides of the first connecting section 14; when the chair leg 1 is subjected to force and tends to separate from the connecting plate 411, the vertical plate 412 can be close to the side position of the first connecting section 14, thereby transferring the shear force exerted on the screw 43 to itself, so that the screw 43 only plays a connecting role, preventing the screw 43 from being broken due to excessive shear force.

[0043] Furthermore, the first connecting section 14 is connected to the connecting plate 14 as follows: a through hole 42 is provided on the connecting plate 411, a first screw hole 31 is provided on the first connecting section 14, a screw 43 passes through the through hole 42 and is screwed into the first screw hole 31 to connect the first splicing part with the second splicing part.

[0044] Furthermore, considering that the chair leg 1 is usually a wooden component, if the screw 43 is directly engaged in the second screw hole 12 opened in the wooden component, the connection strength may not be large enough. Therefore, in order to ensure the connection strength between the chair leg 1 and the first connecting section 14, a second screw hole 12 corresponding to the position of the through hole 42 is preset on the first connecting section 14, and the inner thread of the second screw hole 12 is matched with a metal threaded sleeve 3, and the first screw hole 31 is arranged on the metal threaded sleeve 3; compared with the screw 43 being directly threadedly connected to the second screw hole 12 on the chair leg 1, the metal threaded sleeve 3 pre-arranged in the second screw hole 12 can provide sufficient locking force after being threadedly connected with the screw 43.

[0045] Further, if Figure 3 As shown, in order to prevent the vertical plate 412 from being exposed outside the chair leg 1 and affecting the appearance of the chair leg 1, two inwardly recessed strip avoidance grooves 15 are provided on the outer wall of the first splicing portion, and the strip avoidance grooves 15 extend along the length direction of the chair leg 1, thereby forming the first connecting section 14 between the two strip avoidance grooves 15. The cross-sectional shape of the first splicing portion having the strip avoidance grooves 15 is a "mountain" shape. When the first splicing portion is connected to the second splicing portion, the vertical plate 412 is located in the strip avoidance grooves 15; the vertical plate 412 is hidden in the first splicing portion and not exposed, thereby making the appearance of the assembled chair leg assembly simple and beautiful.

[0046] Further, if Figure 4-5As shown, under the premise that the vertical plate 412 is in the strip avoidance groove 15, in order to prevent the connecting plate 411 from being exposed outside the chair leg 1 and affecting the appearance of the chair leg 1, the wall surface on the first connecting section 14 that is overlapped with the connecting plate 411 is cut inward, and then a groove 13 is formed on the outer wall of the first splicing portion, and the strip avoidance groove 15 continues to sink from the groove wall of the groove 13, so that the depth of the strip avoidance groove 15 is greater than the depth of the groove 13; when the three chair legs 1 are assembled, the three grooves 13 form a herringbone groove 13a, and the herringbone protective cover 2 is connected to the herringbone groove 13a, and the herringbone protective cover 2 seals all the connecting plates 411 on the connecting member 4 in the herringbone groove 13a; so that the connecting plate 4 is also hidden in the splicing position of the chair leg 1, further optimizing the overall appearance of the chair leg assembly after assembly.

[0047] Furthermore, the herringbone protective cover 2 and the first connecting end 14 are connected together as follows: a clamping hole 11 is provided on the first connecting section 14, a buckle 21 corresponding to the position of the clamping hole 11 is provided on the herringbone protective cover 2, and an avoidance hole 44 for avoiding the buckle 21 is also provided on the connecting member 4; the buckle 21 is clamped in the clamping hole 11, thereby connecting the herringbone protective cover 2 to the herringbone sink groove 13a.

[0048] Furthermore, after the screws 43 connect the first connecting section 14 and the connecting plate 411, due to errors, a tiny gap still remains between the first connecting section 14 and the connecting plate 411. When the two chair legs 1 are in contact with the ground for a long time, the chair legs 1 will be continuously subjected to force and will become slightly loose, which will cause abnormal noise when sitting normally. To avoid this, a U-shaped groove 45 is formed between the connecting plate 411 and the vertical plate 412 on the U-shaped plate 41. On the connecting member 4, the U-shaped grooves 45 of the three U-shaped plates 41 are interconnected. When the three chair legs 1 are spliced ​​into a whole, the first connecting sections 14 of the three chair legs 1 are located in the corresponding U-shaped grooves 45 on the connecting member 4 and abut against each other; there is no gap between the abutting chair legs 1, so that the chair legs 1 supported on the ground will not easily loosen after being subjected to force, eliminating the shaking or abnormal noise caused by loosening, and improving the use experience of the chair legs 1.

[0049] Furthermore, the connecting member 4 is made of metal material, and is an integrally formed sheet metal member or an open mold member; the integrally formed metal connecting member 4 has a high structural strength and can withstand the greater force transmitted by the chair leg 1 .

[0050] Furthermore, the chair leg 1 is a wooden component or a plastic component; the chair leg 1 made of wooden material or plastic material has low cost, high structural strength and long service life.

[0051] like Figure 6As shown, a chair is provided, which includes a seat and a backrest, and detachable legs symmetrically arranged on both sides of the seat and the backrest, wherein the herringbone-shaped cover 2 on the detachable legs is located on the inner side of the seat, so that the seat does not show any traces of splicing of the legs, thereby optimizing the appearance of the seat.

[0052] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A detachable chair leg, characterized in that: include: A chair leg assembly, comprising three chair legs (1), wherein the chair legs (1) comprise a first joint portion located at the end of the chair legs, and the first joint portions of the three chair legs (1) are arranged in a herringbone shape when intersecting and jointing; A connecting piece (4), the connecting piece (4) having three second splicing portions arranged in a herringbone shape; The first joint portion on each chair leg (1) is connected to the corresponding second joint portion via a screw (43), thereby splicing the three chair legs (1) into a whole.

2. The detachable chair leg according to claim 1, characterized in that: The first splicing portion comprises a first connecting section (14) for contacting and cooperating with the second splicing portion, and the second splicing portion comprises a connecting plate (411), and vertical plates (412) extend in the same direction on both sides of the connecting plate (411), and the vertical plates (412) and the connecting plate (411) form a U-shaped plate (41) with a U-shaped cross section; the connecting plate (411) of the U-shaped plate (41) is placed on the first connecting section (14) and connected by screws (43), and the vertical plates (412) of the U-shaped plate (41) are abutted against both sides of the first connecting section (14).

3. The detachable chair leg according to claim 2, characterized in that: A through hole (42) is provided on the connecting plate (411), a first screw hole (31) is provided on the first connecting section (14), and a screw (43) passes through the through hole (42) and is screwed into the first screw hole (31) to connect the first splicing portion with the second splicing portion.

4. The detachable chair leg according to claim 3 is characterized in that: The first connecting section (14) is preset with a second screw hole (12) corresponding to the position of the through hole (42); the internal thread of the second screw hole (12) is matched with a metal threaded sleeve (3); and the first screw hole (31) is arranged on the metal threaded sleeve (3).

5. The detachable chair leg according to claim 2, characterized in that: Two inwardly recessed strip avoidance grooves (15) are provided on the outer wall of the first joint portion, and the strip avoidance grooves (15) extend along the length direction of the chair leg (1), thereby forming the first connecting section (14) between the two strip avoidance grooves (15), and when the first joint portion is connected to the second joint portion, the vertical plate (412) is located in the strip avoidance groove (15).

6. The detachable chair leg according to claim 5, characterized in that: The wall surface of the first connecting section (14) that is in contact with the connecting plate (411) is cut inwardly, thereby forming a sink groove (13) on the outer wall of the first joint portion, and the strip-shaped avoidance groove (15) continues to sink from the groove wall of the sink groove (13); when the three chair legs (1) are assembled, the three sink grooves (13) form a herringbone-shaped sink groove (13a), and the herringbone-shaped protective cover (2) is connected to the herringbone-shaped sink groove (13a), and the herringbone-shaped protective cover (2) seals all the connecting plates (411) on the connecting member (4) in the herringbone-shaped sink groove (13a).

7. The detachable chair leg according to claim 6, characterized in that: The first connecting section (14) is provided with a clamping hole (11), the herringbone-shaped protective cover (2) is provided with a clamping buckle (21), and the clamping buckle (21) is clamped in the clamping hole (11), thereby connecting the herringbone-shaped protective cover (2) in the herringbone-shaped sink groove (13a).

8. The detachable chair leg according to claim 2, characterized in that: A U-shaped groove (45) is formed between the connecting plate (411) and the vertical plate (412) on the U-shaped plate (41); the U-shaped grooves (45) of the three U-shaped plates (41) on the connecting member (4) are interconnected; when the three chair legs (1) are spliced ​​into a whole, the first connecting sections (14) of the three chair legs (1) are located in the corresponding U-shaped grooves (45) on the connecting member (4) and abut against each other.

9. The detachable chair leg according to claim 1, characterized in that: The connecting piece (4) is made of a metal material, and is an integrally formed sheet metal piece or an open mold piece.

10. The detachable chair leg according to claim 1, characterized in that: The chair leg (1) is a wooden part or a plastic part.

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