CN111642924A - Detachable chair leg - Google Patents
Detachable chair leg Download PDFInfo
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- CN111642924A CN111642924A CN202010442727.0A CN202010442727A CN111642924A CN 111642924 A CN111642924 A CN 111642924A CN 202010442727 A CN202010442727 A CN 202010442727A CN 111642924 A CN111642924 A CN 111642924A
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- plane
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/002—Chair or stool bases
- A47C7/004—Chair or stool bases for chairs or stools with central column, e.g. office chairs
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Abstract
The detachable chair leg comprises a center seat, five single-leg connecting seats which are connected to the circumference of the center seat and are uniformly distributed in the circumference, and a single leg connected to each single-leg connecting seat, wherein each single-leg connecting seat comprises two parallel connecting blocks, a notch is formed between the two connecting blocks, a hinge shaft is connected to the two connecting blocks and is transversely arranged in the notch, one end, close to the connecting block, of each single leg is connected with a C-shaped clamping part with a downward opening, the hinge shaft is clamped in the corresponding C-shaped clamping part, the diameter of the hinge shaft is larger than the caliber of the opening of the C-shaped clamping part, a notch groove positioned at two ends of the C-shaped clamping part in the thickness direction is arranged at the lower side of one end, provided with the C-shaped clamping part, one connecting block of the two parallel connecting blocks extends into one notch groove, the other connecting block extends into the other, each notch groove is connected with the connecting block extending into the notch groove through a concave-convex abutting limiting structure.
Description
Technical Field
The invention belongs to the technical field of swivel chairs, and particularly relates to a detachable chair leg.
Background
The chair leg is one of the accessories of the chair.
The design of chair foot it requires to have certain bearing capacity, simultaneously, in order to facilitate the transportation reduce the chair foot volume, current a lot of inventors have designed the chair foot that can dismantle, promptly, the center seat and the single foot of chair foot are detachable, separately pack during the transportation, during the equipment, pass through screw etc. connecting piece with single foot and make the single foot fix on the center seat. The inventor also designs that the single pin and the central seat are connected by utilizing the structures of the buckle and the clamping groove, and the single pin can be folded in the mode.
Although it has a great deal of advantages as above in above scheme, it still has some not enough that it of present this kind of chair foot that can dismouting, for example, the screw fixation needs with the help of the instrument, and its structure of buckle draw-in groove mode is relatively complicated, and it is great and with higher costs to its the development difficulty of mould, and secondly, it forms mutual contact extrusion easily after drawing in that the single foot that can draw in, thereby leads to buckle draw-in groove deformation easily to influence the smoothness that the single foot expandes, and ultimate chair foot structural strength.
Disclosure of Invention
The invention aims to solve the problems and provides a detachable chair leg which can solve the technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the detachable chair leg comprises a center seat, five single-leg connecting seats which are connected to the circumference of the center seat and are uniformly distributed in the circumference, and a single leg connected to each single-leg connecting seat, wherein each single-leg connecting seat comprises two parallel connecting blocks, a notch is formed between the two connecting blocks, a hinge shaft is connected to the two connecting blocks and is transversely arranged in the notch, one end, close to the connecting block, of each single leg is connected with a C-shaped clamping part with a downward opening, the hinge shaft is clamped in the corresponding C-shaped clamping part, the diameter of the hinge shaft is larger than the caliber of the opening of the C-shaped clamping part, a notch groove positioned at two ends of the C-shaped clamping part in the thickness direction is arranged at the lower side of one end, provided with the C-shaped clamping part, one connecting block of the two parallel connecting blocks extends into one notch groove, the other connecting block extends into the other, every breach groove is connected through unsmooth counterbalance limiting structure respectively with the connecting block that stretches into in this breach groove, and unsmooth counterbalance limiting structure can prevent that the monopod from using the hinge as the excessive upwards rotation of pin joint and work as the monopod uses the hinge to assemble downwards when drawing in as the pin joint and can prevent the one end tip that the monopod kept away from C shape joint portion that is drawn in contacts each other.
In the above chair leg, the said concave-convex abutting limiting structure comprises an upper limiting plane arranged on the upper side of the connecting block, a lower limiting plane arranged on the lower side of the connecting block, and an arc-shaped limiting convex surface arranged at one end of the connecting block far away from the central seat, wherein the upper limiting plane is tangent to the arc-shaped limiting convex surface, the lower limiting plane is tangent to the arc-shaped limiting convex surface, an upper limiting plane I and an arc limiting concave surface are arranged on the groove wall of the notch groove, the upper limiting plane I is tangent to the arc limiting concave surface, the arc limiting concave surface is matched with the arc limiting convex surface, when the upper limiting plane is inosculated with the upper limiting plane I, the single foot upwards rotates to a position, when one end of the arc-shaped limiting concave surface, which is far away from the upper limiting plane I, is contacted with the lower limiting plane I, the single foot rotates downwards to a position, and the end parts of the folded single foot, which are far away from the C-shaped clamping part, are distributed at intervals on the circumference.
In the above chair leg, the circumference of the arc surface of the arc-shaped limiting concave surface is greater than half of the circumference of the arc surface of the arc-shaped limiting convex surface. When the single foot rotates upwards to the place, one end, far away from the upper limiting plane, of the arc limiting concave surface is located at the position below half of the circumference of the arc surface of the arc limiting convex surface, mutual occlusion can be formed through the structure, and the arc limiting convex surface is not easy to separate from the arc limiting concave surface downwards, so that the bearing capacity of the whole chair foot after the single foot rotates upwards to the place is improved.
In the detachable chair leg, the axis of the C-shaped clamping part is superposed with the axis of the arc-shaped limiting concave surface.
In the above chair leg, the upper limiting plane is perpendicular to the axis of the central seat, and the upper limiting plane is perpendicular to the axis of the central seat when the upper limiting plane is matched with the upper limiting plane.
In the above chair leg, the upper limiting plane is an inclined plane, and the inclination direction is as follows: the upper limiting plane I inclines downwards and inwards from one end close to the arc-shaped limiting convex surface to one end of the central seat, the upper limiting plane I is an inclined plane, and the inclined direction and the angle of the upper limiting plane I are respectively consistent with those of the upper limiting plane.
In the disassembly and assembly chair leg, the end surface of one end of the single leg, which is provided with the C-shaped clamping part, is a first abutting plane, a second abutting plane which is opposite to the first abutting plane one by one is circumferentially arranged at the upper end of the central seat, and the first abutting plane is matched with the second abutting plane when the single leg rotates upwards to a proper position;
one end of the upper limiting plane, which is close to the center seat, is connected with the two abutting planes through an arc transition concave surface, the first upper limiting plane is connected with the first abutting plane through an arc transition convex surface, and when a single foot rotates upwards to a place, the arc transition concave surface is matched with the arc transition convex surface.
In foretell dismouting chair foot, center seat circumference still be equipped with five axial that are circumference evenly distributed and dodge the groove, the axial is dodged the groove and is set up along the axial of center seat to the lower extreme and the external intercommunication that the groove was dodged to the axial, the upper end that the groove was dodged to the axial is prolonged to below the upper end terminal surface of center seat, is equipped with an axial between two connecting blocks that are parallel to each other and dodges the groove, the groove width that the groove was dodged to the axial is greater than the thickness of C shape joint portion.
In the above chair leg, the two ends of the opening of the C-shaped clamping part are respectively provided with the guide inclined planes, and the two guide inclined planes are distributed in a splayed shape.
In the detachable chair leg, the central seat, the connecting block and the hinge shaft are integrally molded by injection; the hinge shaft is a solid shaft or a hinge shaft with a through groove in the center;
the lower side of each connecting block is respectively provided with a weight reduction groove body arranged along the length direction of the connecting block, one connecting block of one single-pin connecting seat of two adjacent single-pin connecting seats and one connecting block of the other single-pin connecting seat form an included angle smaller than 90 degrees, two weight reduction groove bodies opposite to the two connecting blocks forming the included angle are communicated through a corner groove body, the two weight reduction groove bodies and the corner groove body form V-shaped grooves, and the V-shaped grooves are five and are circumferentially and uniformly distributed.
Compared with the prior art, the invention has the advantages that:
through two breach grooves, two connecting blocks to and unsmooth counterbalance limit structure, can ensure that the monopod upwards rotates the bearing performance after targetting in place, simultaneously, the monopod interval distribution each other when can also guaranteeing the monopod folded state can prevent that the contact extrusion between each other alone from leading to the wearing and tearing of C shape joint portion and hinge to damage, in addition, overall structure is simple and the dismouting operation of being convenient for, and the design is more reasonable.
The disassembly and assembly are more convenient and simpler, and the operation is convenient.
The packaging mode is more optional, and the single piece can be directly folded on the central seat or can be packaged separately from the central seat.
Drawings
Fig. 1 is a schematic perspective view of a chair leg provided by the invention.
Fig. 2 is a schematic diagram of an explosive structure of a chair leg provided by the invention.
Fig. 3 is a schematic view of the structure of the center seat provided by the present invention.
Fig. 4 is a schematic perspective view of another perspective structure of the chair leg provided by the invention.
Fig. 5 is a schematic view of the folded state of the single foot provided by the invention.
In the figure, a central seat 1, a second abutting plane 10, an arc-shaped transition concave surface 11, an axial avoiding groove 12, a single-pin connecting seat 2, a connecting block 20, a notch 21, a hinge shaft 22, a weight reduction groove body 200, a corner groove body 201, a single pin 3, a C-shaped clamping part 30, a notch groove 31, a first abutting plane 32, an arc-shaped transition convex surface 33, a guide inclined surface 34, a concave-convex abutting limiting structure 4, an upper limiting plane 40, a lower limiting plane 41, an arc-shaped limiting convex surface 42, an upper limiting plane 43, an arc-shaped limiting concave surface 44 and an included angle a are arranged.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in figure 1, the detachable chair leg comprises a central seat 1, five single-leg connecting seats 2 which are connected to the periphery of the central seat 1 and are uniformly distributed on the periphery, and a single leg 3 connected to each single-leg connecting seat 2. The central seat 1 and the monopod connecting seat 2, as well as the monopod 3, are made of plastic, but of course, metal materials can also be used.
As shown in fig. 2 and 3, each of the single-pin coupling sockets 2 includes two connecting blocks 20 parallel to each other and defining a slot 21 between the two connecting blocks 20, and a hinge shaft 22 connected to the two connecting blocks 20 and transversely placed in the slot, and the hinge shaft 22 of the present embodiment has a through slot at the center thereof so as to facilitate injection molding to sufficiently fill the material of each part of the hinge shaft.
Further, the center base 1, the connecting block 20 and the hinge shaft 22 of the present embodiment are integrally injection molded. The integral structure strength is improved, and the production and processing efficiency is improved.
As shown in fig. 2-5, a C-shaped clamping portion 30 with a downward opening is connected to one end of each single leg 3 near the connecting block 20, and the hinge shaft 22 is clamped in the corresponding C-shaped clamping portion 30, further, two ends of the opening of the C-shaped clamping portion 30 are respectively provided with a guiding inclined surface 34, the two guiding inclined surfaces 34 are distributed in a splayed shape, the guiding inclined surfaces 34 can improve smoothness when the hinge shaft 22 is clamped in the C-shaped clamping portion 30, that is, have guiding function, the diameter of the hinge shaft 22 is greater than the diameter of the opening of the C-shaped clamping portion 30 to avoid falling off, a notch groove 31 is formed at both ends of the C-shaped clamping portion 30 in the thickness direction at the lower side of one end of each single leg 3 where the C-shaped clamping portion 30 is provided, the two notch grooves 31 are respectively communicated with the C-shaped clamping portion 30 and the two notch grooves 31 are symmetrically distributed, which can ensure uniformity of, and the firmness and the bearing performance of the connection between the single foot and the central seat are ensured.
Specifically, one of the two parallel connecting blocks 20 extends into one of the notched grooves 31, the other connecting block extends into the other notched groove 31, each notched groove 31 and the connecting block 20 extending into the notched groove 31 are respectively connected by a concave-convex abutting limiting structure 4, the concave-convex abutting limiting structure 4 can prevent the single leg 3 from excessively rotating upwards by taking the hinge shaft 22 as a hinge point and can prevent one end of the folded single leg 3 away from the C-shaped clamping portion 30 from contacting each other when the single leg 3 is folded downwards by taking the hinge shaft 22 as the hinge point.
Through two breach grooves 31, two connecting blocks 20 to and unsmooth counterbalance limit structure 4, can ensure that the monopod upwards rotates the bearing performance after targetting in place, simultaneously, the interval distribution each other of monopod when can also ensuring the monopod state of drawing in, can prevent that independent mutual contact extrusion from leading to the wearing and tearing of C shape joint portion 30 and hinge 22 to damage, in addition, overall structure is simple and the dismouting operation of being convenient for, and the design is more reasonable.
Specifically, as shown in fig. 1 to 5, the concavo-convex abutting-limiting structure 4 of the present embodiment includes an upper limiting plane 40 disposed on the upper side of the connecting block 20, a lower limiting plane 41 disposed on the lower side of the connecting block 20, and an arc-shaped limiting convex surface 42 disposed at an end of the connecting block 20 away from the center base 1, the upper limiting plane 40 is tangent to the arc-shaped limiting convex surface 42, the lower limiting plane 41 is tangent to the arc-shaped limiting convex surface 42, an upper limiting plane 43 and an arc-shaped limiting concave surface 44 are disposed on the groove wall of the notch groove 31, the upper limiting plane 43 is tangent to the arc-shaped limiting concave surface 44, the arc-shaped limiting concave surface 44 is matched with the arc-shaped limiting convex surface 42, and when the upper limiting plane 40 is matched with the upper limiting plane 43, the single pin 3 is rotated upward to a proper position, and when an end of the arc-shaped limiting concave surface 44 away from the upper limiting plane 43 is contacted with the lower limiting plane 41, the single pin 3 is rotated Are evenly distributed at intervals.
After the single-pin and the single-pin connecting seat 2 are connected together, the arc limiting concave surface 44 and the arc limiting convex surface 42 are always in matching contact, and the arc limiting concave surface 44 can form a coating effect to improve forced biting force of the arc limiting convex surface 42 during bearing.
Preferably, the circumference of the arc surface of the arc-shaped concave limiting surface 44 of the present embodiment is greater than half of the circumference of the arc surface of the arc-shaped convex limiting surface 42. When the single foot 3 rotates upwards to a proper position, one end of the arc-shaped limiting concave surface 44, which is far away from the upper limiting plane 43, is positioned at a position below half of the circumference of the arc surface of the arc-shaped limiting convex surface 42, the structures can form mutual occlusion, and the arc-shaped limiting convex surface 42 is not easy to separate downwards from the arc-shaped limiting concave surface 44, so that the bearing capacity of the whole chair foot after the single foot rotates upwards to a proper position is improved.
Further, the circumference of the arc surface of the arc-shaped concave limiting surface 44 of the present embodiment is 2/3 of the circumference of the arc surface of the arc-shaped convex limiting surface 42. So as to ensure that the single leg forms an inverted cone shape after being folded, and the volume in the folded state can be further reduced.
Next, the axis of the C-shaped engaging portion 30 coincides with the axis of the arc-shaped restricting concave surface 44. The smoothness of the rotation of the single foot can be ensured, and the arc-shaped limiting concave surface 44 and the arc-shaped limiting convex surface 42 can form a track guide for the rotation of the single foot.
In addition, the upper limiting plane 40 is perpendicular to the axial lead of the central seat 1, and the upper limiting plane 43 is perpendicular to the axial lead of the central seat 1 when the upper limiting plane 43 is matched with the upper limiting plane 40. Ensures that the center seat has a very good load bearing performance when bearing load, and enables the center seat to have a very good structural strength.
The end face of one end of the single foot 3, which is provided with the C-shaped clamping part 30, is a first abutting plane 32, a second abutting plane 10 which is opposite to the first abutting plane 32 one by one is arranged at the upper end of the central seat 1 in the circumferential direction, and when the single foot 3 rotates upwards to a proper position, the first abutting plane 32 is matched with the second abutting plane 10; namely, the effect of two-way contact limiting is achieved, and the structural stability can be further improved.
One end of the upper limiting plane 40 close to the central seat is connected with the second abutting plane 10 through an arc transition concave surface 11, the first upper limiting plane 43 is connected with the first abutting plane 32 through an arc transition convex surface 33, and after a single foot rotates upwards to a certain position, the arc transition concave surface 11 is matched with the arc transition convex surface 33. The structure can ensure the comprehensiveness of connection matching, so that the structural strength after matching is further improved.
Still be equipped with five axial that are circumference evenly distributed at center seat 1 circumference and dodge groove 12, the axial is dodged groove 12 and is set up along the axial of center seat to the lower extreme that the groove 12 was dodged to the axial communicates with the external world, and the upper end that the groove 12 was dodged to the axial extends to below the upper end terminal surface of center seat, is equipped with an axial between two connecting blocks that are parallel to each other and dodges groove 12, and the groove width that the groove 12 was dodged to the axial is greater than the thickness of C shape joint portion 30.
Because the C-shaped clamping portion 30 needs to rotate, the axial avoidance groove 12 can facilitate avoidance of the C-shaped clamping portion 30 during rotation, so that mutual abrasion caused by contact between the C-shaped clamping portion 30 and the center seat is prevented. Secondly, the upper end of the axial avoiding groove 12 is sealed, the C-shaped clamping portion 30 and the hinge shaft can be protected, and the phenomenon that the service life is influenced when external dust falls onto the C-shaped clamping portion 30 and the hinge shaft is avoided.
The lower side of each connecting block 20 is respectively provided with a weight reducing groove body 200 arranged along the length direction of the connecting block 20, one connecting block 20 of one single-pin connecting seat 2 of two adjacent single-pin connecting seats 2 and one connecting block of the other single-pin connecting seat 2 form an included angle a smaller than 90 degrees, two weight reducing groove bodies 200 opposite to the two connecting blocks 20 forming the included angle are communicated through a corner groove body 201, the two weight reducing groove bodies 200 and the corner groove body 201 form V-shaped grooves, and the five V-shaped grooves are uniformly distributed in the circumference.
The assembly process of this embodiment is as follows:
the C-shaped clamping part 30 on the single foot is aligned with the hinge shaft 22, the hinge shaft 22 is forced to be clamped into the C-shaped clamping part 30 under the action of external force, and before the single foot is connected with the hinge shaft, the single foot is approximately in a vertical state at the moment so as to facilitate the exertion of the external force.
Of course, when the single foot needs to be disassembled, the single foot is in a folded state, and the force which is convenient for external acting force is also the strength.
After the single foot is connected with the hinge shaft one by one, the single foot is enabled to rotate upwards through upward acting force, the arc-shaped limiting concave surface 44 is matched with the arc-shaped limiting convex surface 42 during rotation, and the C-shaped clamping portion 30 and the hinge shaft 22 are in synergistic action, so that the single foot can rotate smoothly, meanwhile, when the upper limiting plane 40 is coincided with the first upper limiting plane 43, the single foot 3 rotates upwards to a proper position, the first abutting plane 32 is coincided with the second abutting plane 10 synchronously, the position of the single foot is limited doubly, and the reliability is higher. In this state, the end of the arcuate restraining concavity 44 remote from the upper restraining plane 43 is forced to bite into the lower end of the arcuate restraining convexity 42 to ensure the load-bearing performance of the overall structure.
When the single feet are rotated downwards to a proper position, one end of the arc-shaped limiting concave surface 44 far away from the upper limiting plane I43 is contacted with the lower limiting plane 41 to form a limit so as to prevent the extrusion phenomenon caused by the mutual contact of the single feet.
Of course, the center seat and the single foot can be packaged and transported independently.
Example two
The working principle and structure of the present embodiment are basically the same as those of the first embodiment, and the different structure is as follows: the upper limiting plane 40 is an inclined plane, and the inclined direction is as follows: the upper limiting plane 43 is an inclined plane, and the inclined direction and the angle of the upper limiting plane 43 are respectively consistent with the inclined direction and the angle of the upper limiting plane 40.
EXAMPLE III
The working principle and structure of the present embodiment are basically the same as those of the first embodiment, and the different structure is as follows: the hinge shaft 22 is a solid shaft.
Example four
The working principle and structure of the present embodiment are basically the same as those of the first embodiment, and the different structure is as follows: the circumference of the arc surface of the arc limiting concave surface 44 is equal to that of the arc surface of the arc limiting convex surface 42. The circumference of the arc surface of the arc-shaped concave limiting surface 44 is not larger than that of the arc surface of the arc-shaped convex limiting surface 42, because the rotation angle is greatly reduced, and the single foot cannot be converged to form an inverted cone.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. Dismounting chair leg, including center seat (1), connect five single-foot connecting seats (2) that are circumference evenly distributed in center seat (1), and connect single-foot (3) on every single-foot connecting seat (2), characterized by, every single-foot connecting seat (2) includes two connecting blocks (20) that are parallel to each other respectively and form notch (21) between two connecting blocks (20), and connect on two connecting blocks (20) and the hinge (22) of horizontal in the notch, be connected with C shape joint portion (30) that the opening is faced down and hinge (22) block in corresponding C shape joint portion (30) in the one end that every single-foot (3) is close to connecting block (20), the diameter of hinge (22) is greater than the bore of C shape joint portion (30) opening part, it has breach groove (31) that are located both ends of C shape joint portion (30) thickness direction to open the one end downside that is equipped with C shape joint portion (30) in every single-foot (3), one of them connecting block (20) in two connecting blocks (20) that are parallel to each other stretches into in one of them breach groove (31), another connecting block stretches into in another breach groove (31), every breach groove (31) with stretch into connecting block (20) in this breach groove (31) and connect through unsmooth counterbalance limiting structure (4) respectively, unsmooth counterbalance limiting structure (4) can prevent that single foot (3) from using hinge (22) to excessively upwards rotate and work as when single foot (3) use hinge (22) to gather when drawing in downwards as the pin joint and can prevent being drawn in single foot (3) keep away from the one end tip of C shape joint portion (30) and contact each other.
2. A detachable chair leg as claimed in claim 1, wherein said bump-limiting structure (4) comprises an upper limiting plane (40) disposed on the upper side of the connecting block (20), a lower limiting plane (41) disposed on the lower side of the connecting block (20), and a convex arc-limiting surface (42) disposed on the end of the connecting block (20) away from the center base (1), the upper limiting plane (40) and the convex arc-limiting surface (42) being tangent to each other, the lower limiting plane (41) and the convex arc-limiting surface (42) being tangent to each other, an upper limiting plane (43) and a concave arc-limiting surface (44) being disposed on the wall of the notch groove (31), said upper limiting plane (43) and the concave arc-limiting surface (44) being tangent to each other, the concave arc-limiting surface (44) and the convex arc-limiting surface (42) being matched to each other and said single leg (3) being rotated upward into position when the upper limiting plane (40) and the upper limiting plane (43) are, when one end of the arc-shaped limiting concave surface (44) far away from the upper limiting plane I (43) is contacted with the lower limiting plane (41), the single foot (3) rotates downwards to a proper position, and the end parts of the collected single foot (3) far away from the C-shaped clamping parts (30) are distributed at equal intervals on the circumference.
3. The detachable chair leg according to claim 2, wherein the circumference of the arc surface of the arc-shaped restriction concave surface (44) is greater than half of the circumference of the arc surface of the arc-shaped restriction convex surface (42); when the single foot (3) rotates upwards to a proper position, one end of the arc-shaped limiting concave surface (44) far away from the upper limiting plane I (43) is positioned at a position below half of the circumference of the arc surface of the arc-shaped limiting convex surface (42).
4. The detachable chair leg according to claim 2, wherein the axis of the C-shaped clamping portion (30) coincides with the axis of the arc-shaped concave limiting surface (44).
5. The removable chair leg according to claim 2, wherein the upper limiting plane (40) is perpendicular to the axis of the central seat (1), and the upper limiting plane (43) is perpendicular to the axis of the central seat (1) when the upper limiting plane (43) and the upper limiting plane (40) are matched.
6. A detachable chair leg as claimed in claim 2, wherein said upper limiting plane (40) is an inclined plane, the inclination direction being: the upper limiting plane (43) is an inclined plane, and the inclined direction and the angle of the upper limiting plane (43) are respectively consistent with the inclined direction and the angle of the upper limiting plane (40).
7. The detachable chair leg according to claim 2, wherein the end surface of the single leg (3) provided with the C-shaped clamping portion (30) is a first abutting plane (32), a second abutting plane (10) which is opposite to the first abutting plane (32) in a one-to-one manner is circumferentially arranged at the upper end of the central seat (1), and when the single leg (3) is rotated upwards to a proper position, the first abutting plane (32) is matched with the second abutting plane (10);
one end of the upper limiting plane (40) close to the center seat is connected with the second abutting plane (10) through an arc transition concave surface (11), the first upper limiting plane (43) is connected with the first abutting plane (32) through an arc transition convex surface (33), and the arc transition concave surface (11) is matched with the arc transition convex surface (33) after a single foot rotates upwards to a position.
8. The detachable chair leg according to claim 1, wherein five axial avoiding grooves (12) are circumferentially and uniformly distributed in the center seat (1), the axial avoiding grooves (12) are arranged along the axial direction of the center seat, the lower ends of the axial avoiding grooves (12) are communicated with the outside, the upper ends of the axial avoiding grooves (12) extend to the position below the upper end face of the center seat, an axial avoiding groove (12) is arranged between two parallel connecting blocks, and the width of the axial avoiding groove (12) is greater than the thickness of the C-shaped clamping portion (30).
9. The detachable chair leg according to claim 1, wherein the two ends of the opening of the C-shaped clamping portion (30) are respectively provided with a guiding inclined surface (34), and the two guiding inclined surfaces (34) are distributed in a splayed shape.
10. The detachable chair leg according to claim 1, wherein the central seat (1), the connecting block (20) and the hinge shaft (22) are integrally injection molded; the hinge shaft (22) is a solid shaft or a hinge shaft with a through groove in the center;
the weight reducing groove bodies (200) arranged along the length direction of each connecting block (20) are respectively arranged on the lower side of each connecting block (20), an included angle (a) smaller than 90 degrees is formed between one connecting block (20) of one single-pin connecting seat (2) of two adjacent single-pin connecting seats (2) and one connecting block of the other single-pin connecting seat (2), the two weight reducing groove bodies (200) opposite to the two connecting blocks (20) forming the included angle a () are communicated through the corner groove bodies (201), the two weight reducing groove bodies (200) and the corner groove bodies (201) form V-shaped grooves, and the V-shaped grooves are five and are uniformly distributed in the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442727.0A CN111642924B (en) | 2020-05-22 | 2020-05-22 | Detachable chair leg |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442727.0A CN111642924B (en) | 2020-05-22 | 2020-05-22 | Detachable chair leg |
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| Publication Number | Publication Date |
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| CN111642924A true CN111642924A (en) | 2020-09-11 |
| CN111642924B CN111642924B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010442727.0A Active CN111642924B (en) | 2020-05-22 | 2020-05-22 | Detachable chair leg |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115245254A (en) * | 2022-08-11 | 2022-10-28 | 安吉金泰紧固件有限公司 | Center base of dismouting chair foot |
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|---|---|---|---|---|
| CA2985211A1 (en) * | 2016-09-30 | 2018-03-30 | Anji Jintai Fastener Co., Ltd. | Foldable five-star foot |
| CN209528528U (en) * | 2019-01-03 | 2019-10-25 | 浙江粤强家具科技有限公司 | Five wheel chair legs |
| CN109691813A (en) * | 2019-02-26 | 2019-04-30 | 安吉金泰紧固件有限公司 | A kind of high-intensitive star base with dismounting function |
| CN210043565U (en) * | 2019-05-20 | 2020-02-11 | 安吉嘉诚五金有限公司 | Chair leg center seat connecting pipe and chair leg center seat thereof |
| CN210493370U (en) * | 2019-10-25 | 2020-05-12 | 浙江中义家具有限公司 | Detachable swivel chair leg |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115245254A (en) * | 2022-08-11 | 2022-10-28 | 安吉金泰紧固件有限公司 | Center base of dismouting chair foot |
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| CN111642924B (en) | 2023-06-06 |
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