CN111642924B - Detachable chair leg - Google Patents
Detachable chair leg Download PDFInfo
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- CN111642924B CN111642924B CN202010442727.0A CN202010442727A CN111642924B CN 111642924 B CN111642924 B CN 111642924B CN 202010442727 A CN202010442727 A CN 202010442727A CN 111642924 B CN111642924 B CN 111642924B
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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 in the circumferential direction of the center seat and are uniformly distributed in the circumferential direction, and single legs which are connected to each single-leg connecting seat, wherein each single-leg connecting seat comprises two mutually parallel connecting blocks, a notch is formed between the two connecting blocks, and a hinge shaft which is connected to the two connecting blocks and is transversely arranged in the notch, one end of each single leg, which is close to the connecting block, is connected with a C-shaped clamping part with a downward opening, the hinge shaft is clamped into 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 which is positioned at two ends of the C-shaped clamping part in the thickness direction is formed in the lower side of one end of each single leg, one connecting block of the two mutually parallel connecting blocks extends into one notch groove, the other connecting block extends into the other notch groove, and each notch groove and the connecting block extending into the notch groove are respectively connected 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 chair fittings.
The design of the chair leg requires a certain bearing capacity, meanwhile, in order to facilitate transportation and reduce the volume of the chair leg, a plurality of inventors design the chair leg which can be disassembled and assembled, namely, a center seat of the chair leg and a single leg are detachable, the chair leg and the single leg are packaged separately in transportation, and when the chair leg is assembled, the single leg is fixed on the center seat through a connecting piece such as a screw. The inventors have also devised the use of a snap and slot arrangement to connect the single leg to the center seat in such a way that the single leg can be collapsed.
Although the above scheme has many advantages as above, the existing detachable chair leg has some disadvantages, for example, the screw fixing needs to be realized by means of a tool, the structure of the fastening slot mode is relatively complex, the difficulty and the cost for developing a die are relatively high, secondly, the folded single legs are easy to form contact extrusion after being folded, and the fastening slot is easy to be changed to influence the smoothness of the unfolding of the single legs, and the structural strength of the final chair leg is easy to cause.
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 above purpose, the present invention adopts the following technical scheme:
the detachable chair leg comprises a center seat, five single leg connecting seats which are connected in the circumferential direction of the center seat and are uniformly distributed in the circumference, and single legs which are connected to each single leg connecting seat, wherein each single leg connecting seat comprises two mutually parallel connecting blocks, a notch is formed between the two connecting blocks, and a hinge shaft which is connected to the two connecting blocks and transversely arranged in the notch, one end of each single leg, which is close to the connecting block, is connected with a C-shaped clamping part with a downward opening, the hinge shaft is clamped into 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 which is positioned at two ends of the thickness direction of the C-shaped clamping part is formed in the lower side of one end of each single leg, one connecting block in the two mutually parallel connecting blocks stretches into one notch groove, the other connecting block stretches into the other notch groove, each notch groove and the connecting block which stretches into the notch groove are respectively connected through a concave-convex abutting limiting structure, the concave-convex limiting structure can prevent the single leg from rotating upwards with the hinge shaft as the hinge shaft, and the hinge shaft can prevent the hinge shaft from being excessively folded towards one end, so that the hinge ends can be prevented from being excessively folded towards one end each other.
In the above-mentioned dismouting chair foot, unsmooth offset limit structure including setting up the upper limit plane at the connecting block upside, set up the lower limit plane at the connecting block downside to and set up the arc restriction convex surface that keeps away from center seat one end at the connecting block, upper limit plane is tangent with the arc restriction convex surface, and lower limit plane is tangent with the arc restriction convex surface, is equipped with upper limit plane one and arc restriction concave surface on the cell wall of breach groove, upper limit plane one tangent with arc restriction concave surface, arc restriction concave surface and arc restriction convex surface match and when upper limit plane and upper limit plane one coincide then the monopod upwards rotates in place, when the arc restriction concave surface keep away from the one end of upper limit plane one and lower limit plane contact then the monopod rotates down in place and by the one end tip that the monopod of gathering kept away from C shape joint portion is circumference even interval distribution.
In the detachable chair leg, the circumference of the arc surface of the arc limiting concave surface is larger than half of the circumference of the arc surface of the arc limiting convex surface. When the single foot rotates upwards in place, one end of the arc-shaped limiting concave surface far away from the first upper limiting plane is positioned at a position below half of the circumference of the arc-shaped surface of the arc-shaped limiting convex surface, the arc-shaped limiting convex surface can be meshed with each other, and the arc-shaped limiting convex surface is not easy to separate from the arc-shaped limiting concave surface downwards, so that the bearing capacity of the whole chair foot after the single foot rotates upwards in place is improved.
In the detachable chair leg, the axis of the C-shaped clamping part is coincident with the axis of the arc limiting concave surface.
In the above-mentioned assembly and disassembly chair leg, the upper limiting plane is perpendicular to the axis of the center seat, and the upper limiting plane I is perpendicular to the axis of the center seat when the upper limiting plane I and the upper limiting plane I are matched.
In the above-mentioned dismouting chair foot, upper limit plane be the slope plane, the incline direction is: the first upper limiting plane is an inclined plane, and the inclined direction and the angle of the first upper limiting plane are respectively consistent with those of the first upper limiting plane.
In the detachable chair leg, the end face of one end of the single leg provided with the C-shaped clamping part is a first propping plane, a second propping plane which is opposite to the first propping plane one by one is circumferentially arranged at the upper end of the center seat, and the first propping plane is matched with the second propping plane when the single leg rotates in place upwards;
one end of the upper limiting plane, which is close to the center seat, is connected with the second abutting plane through an arc-shaped excessive concave surface, the first upper limiting plane is connected with the first abutting plane through an arc-shaped excessive convex surface, and the arc-shaped excessive concave surface is matched with the arc-shaped excessive convex surface after the single foot rotates upwards in place.
In the above-mentioned dismouting chair foot, center seat circumference still be equipped with five and be circumference evenly distributed's axial and dodge the groove, the axial dodge the groove and set up along the axial of center seat to the lower extreme and the external intercommunication in groove are dodged to the axial, and the upper end in groove is dodged to the upper end terminal surface below of center seat to the axial is equipped with an axial between two connecting blocks that are parallel to each other and dodges the groove, and the groove width in groove is greater than the thickness of C shape joint portion is dodged to the axial.
In the above-mentioned dismouting chair foot, the opening both ends of C shape joint portion have the direction inclined plane respectively, and two direction inclined planes are the splayed and are distributed.
In the detachable chair leg, the center seat, the connecting block and the hinge shaft are integrally injection molded; the hinge shaft is a solid shaft or a hinge shaft with a through groove in the center;
the lower side at every connecting block is equipped with one respectively and follows the weight-reducing cell body that connecting block length direction set up, and one of them connecting block of one of them single foot connecting seat of two adjacent single foot connecting seats and one of them connecting block of another single foot connecting seat form the contained angle that is less than 90 degrees to two relative weight-reducing cell bodies of two connecting blocks that form the contained angle pass through corner cell body intercommunication, two weight-reducing cell bodies and corner cell body form V type groove, V type groove have five and be circumference evenly distributed.
Compared with the prior art, the invention has the advantages that:
through two breach grooves, two connecting blocks to and unsmooth limit structure that offsets, can ensure the bearing performance after the single foot upwards rotates in place, simultaneously, the interval distribution of single foot each other when still can ensure the single foot state of drawing in, can prevent that the contact extrusion of each other alone from leading to the wearing and tearing damage of C shape joint portion and hinge, in addition, overall structure is simple and be convenient for dismouting operation, 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 packaging mode can be that a single piece is directly received and gathered on the center seat, and can also be packaged separately from the center seat.
Drawings
Fig. 1 is a schematic perspective view of a chair leg according to the present invention.
Fig. 2 is an exploded view of the chair leg according to the present invention.
Fig. 3 is a schematic view of a center seat according to the present invention.
Fig. 4 is a schematic view of another perspective view of the chair leg according to the present invention.
Fig. 5 is a schematic view of a single-foot folded state provided by the invention.
In the figure, a center seat 1, a second abutting plane 10, an arc transition concave surface 11, an axial avoidance groove 12, a single-leg connecting seat 2, a connecting block 20, a notch 21, a hinge 22, a weight reduction groove body 200, a corner groove body 201, a single leg 3, a C-shaped clamping part 30, a notch groove 31, a first abutting plane 32, an arc 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 limiting convex surface 42, an upper limiting plane 43, an arc limiting concave surface 44 and an included angle a.
Detailed Description
The following are specific embodiments of the invention and the technical solutions of the invention will be further described with reference to the accompanying drawings, but the invention is not limited to these embodiments.
Example 1
As shown in fig. 1, the detachable chair leg comprises a center seat 1, five single-leg connecting seats 2 connected to the circumference of the center seat 1 and uniformly distributed circumferentially, and single legs 3 connected to each single-leg connecting seat 2. The center mount 1 and the single-pin connection mount 2, as well as the single pin 3, are all made of plastic, although it is also possible to use metallic materials.
As shown in fig. 2 and 3, each of the single-pin joint seats 2 includes two joint blocks 20 parallel to each other with a notch 21 formed between the two joint blocks 20, and a hinge shaft 22 connected to the two joint blocks 20 and transversely placed in the notch, and the center of the hinge shaft 22 of this embodiment has a through slot so that the material of each part of the hinge shaft is sufficiently filled by injection molding.
Further, the center mount 1, the connection block 20, and the hinge shaft 22 of the present embodiment are integrally injection molded. The overall structural 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 into the corresponding C-shaped clamping portion 30, further, two guiding inclined planes 34 are respectively provided at two ends of the opening of the C-shaped clamping portion 30, the two guiding inclined planes 34 are distributed in a splayed shape, the guiding inclined planes 34 can improve smoothness of the hinge shaft 22 clamped into the C-shaped clamping portion 30, that is, guiding effect is provided, the diameter of the hinge shaft 22 is larger than the caliber of the opening of the C-shaped clamping portion 30, so as to avoid falling off, a notch groove 31 is formed at two ends of the C-shaped clamping portion 30 in the thickness direction of each single leg 3, the two notch grooves 31 are respectively communicated with the C-shaped clamping portion 30, and the two notch grooves 31 are symmetrically distributed, and the design can ensure uniformity of weight distribution, and ensure firmness and bearing performance of connection of the single leg and the center seat.
Specifically, one of the two mutually parallel connection blocks 20 extends into one of the notch grooves 31, the other connection block extends into the other notch groove 31, each notch groove 31 and the connection block 20 extending into the notch groove 31 are respectively connected through the concave-convex offset limiting structure 4, the concave-convex offset limiting structure 4 can prevent the single leg 3 from excessively rotating upwards by taking the hinge shaft 22 as a hinge point, and when the single leg 3 is gathered downwards by taking the hinge shaft 22 as a hinge point, the end parts of the gathered single leg 3 far away from the C-shaped clamping part 30 can be prevented from contacting each other.
Through two breach grooves 31, two connecting blocks 20 to and unsmooth offset limit structure 4, can ensure the bearing performance after the single foot upwards rotates in place, simultaneously, can also ensure the interval distribution of single foot each other when the single foot draws in the state in, can prevent that the contact extrusion of each other alone from leading to the wearing and tearing damage of C shape joint portion 30 and hinge 22, 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. 1-5, the concave-convex offset 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 limiting convex surface 42 disposed on the end of the connecting block 20 far from the center seat 1, the upper limiting plane 40 is tangential to the arc limiting convex surface 42, the lower limiting plane 41 is tangential to the arc limiting convex surface 42, an upper limiting plane one 43 and an arc limiting concave surface 44 are disposed on the groove wall of the notch groove 31, the upper limiting plane one 43 is tangential to the arc limiting concave surface 44, the arc limiting concave surface 44 is matched with the arc limiting convex surface 42, and when the upper limiting plane 40 and the upper limiting plane one 43 are matched, the single pin 3 rotates upward, when the end of the arc limiting concave surface 44 far from the upper limiting plane one 43 contacts with the lower limiting plane 41, the single pin 3 rotates downward in place, and the end of the folded single pin 3 far from the C-shaped clamping portion 30 is uniformly distributed at intervals circumferentially.
After the single-pin and the single-pin connecting seat 2 are connected together, the arc-shaped limiting concave surface 44 and the arc-shaped limiting convex surface 42 are always in matched contact, and the arc-shaped limiting concave surface 44 can form a cladding effect so as to improve forced engagement force on the arc-shaped limiting convex surface 42 when bearing weight.
Preferably, the circumference of the arcuate surface of the arcuate limiting concave surface 44 of this embodiment is greater than half the circumference of the arcuate surface of the arcuate limiting convex surface 42. When the single leg 3 rotates upward, the end of the arc-shaped limiting concave surface 44 away from the upper limiting plane one 43 is located at a position below half of the circumference of the arc-shaped surface of the arc-shaped limiting convex surface 42, and the arc-shaped limiting convex surface 42 is not easy to separate downward from the arc-shaped limiting concave surface 44, so that the bearing capacity of the whole chair leg after the single leg rotates upward is improved.
Further, the circumference of the arc surface of the arc-shaped restricting concave surface 44 of the present embodiment is 2/3 of the circumference of the arc surface of the arc-shaped restricting convex surface 42. So as to ensure that the single foot 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. Smoothness of the rotation of the single foot can be ensured, and the arc-shaped restriction concave surface 44 and the arc-shaped restriction 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 axis of the center seat 1, and the upper limiting plane 43 is perpendicular to the axis of the center seat 1 when the upper limiting plane 43 and the upper limiting plane 40 are matched. Ensuring a very good load-bearing performance of the central seat when bearing, and a very good structural strength of the central seat itself.
The single pin 3 is provided with a first abutting plane 32 at one end face of the C-shaped clamping part 30, a second abutting plane 10 which is opposite to the first abutting plane 32 one by one is circumferentially arranged at the upper end of the center seat 1, and the first abutting plane 32 is matched with the second abutting plane 10 when the single pin 3 rotates upwards in place; namely, the two-way contact limiting function is achieved, and the structural stability can be further improved.
One end of the upper limiting plane 40, which is close to the center seat, is connected with the abutting plane two 10 through an arc-shaped excessive concave surface 11, the upper limiting plane one 43 is connected with the abutting plane one 32 through an arc-shaped excessive convex surface 33, and the arc-shaped excessive concave surface 11 is matched with the arc-shaped excessive convex surface 33 after the single foot rotates upwards to be in place. The structure can ensure the comprehensiveness of connection and matching, so that the structural strength after matching is further improved.
Five axial avoidance grooves 12 which are uniformly distributed in the circumference are further formed in the center seat 1 in the circumferential direction, the axial avoidance grooves 12 are formed in the center seat along the axial direction, the lower ends of the axial avoidance grooves 12 are communicated with the outside, the upper ends of the axial avoidance grooves 12 extend below the end face of the upper end of the center seat, an axial avoidance groove 12 is formed between two mutually parallel connecting blocks, and the groove width of the axial avoidance grooves 12 is larger than the thickness of the C-shaped clamping portion 30.
Because the C-shaped clamping portion 30 needs to rotate, the axial avoidance groove 12 at this time can facilitate avoidance of the C-shaped clamping portion 30 during rotation, so as to prevent the contact between the C-shaped clamping portion 30 and the center seat and the abrasion between the C-shaped clamping portion and the center seat. Secondly, the upper end of the axial avoidance groove 12 is closed, so that protection can be formed on the C-shaped clamping portion 30 and the hinge shaft, and external dust is prevented from falling onto the C-shaped clamping portion 30 and the hinge shaft, and the service life is prevented from being influenced.
The lower side at every connecting block 20 is equipped with one respectively and follows the weight reduction cell body 200 that connecting block 20 length direction set up, and one of them connecting block 20 and another one of them single foot connecting seat 2 of two adjacent single foot connecting seats 2 forms the contained angle a that is less than 90 angle to two connecting blocks 20 that form the contained angle are its two relative weight reduction cell bodies 200 to be linked together through corner cell body 201, two weight reduction cell bodies 200 and corner cell body 201 form the V type groove, the V type groove have five and be circumference evenly distributed.
The assembly process of this embodiment is as follows:
the C-shaped clamping portion 30 on the single leg is aligned to the hinge shaft 22, and the hinge shaft 22 is forced to be clamped into the C-shaped clamping portion 30 under the action of external force, and the single leg is approximately in a vertical state before being connected with the hinge shaft, so that the external force is strong.
Of course, when the single foot needs to be disassembled, the single foot is in a folded state, and the single foot is also a real force convenient for external acting force.
After the single feet are connected with the hinge shaft one by one, the single feet are enabled to rotate upwards through upward acting force, the arc-shaped limiting concave surface 44 and the arc-shaped limiting convex surface 42 are matched during rotation, and the single feet can rotate smoothly due to the synergistic effect of the C-shaped clamping part 30 and the hinge shaft 22, meanwhile, when the upper limiting plane 40 and the upper limiting plane one 43 are matched, the single feet 3 rotate upwards in place, the abutting plane one 32 and the abutting plane two 10 are synchronously matched at the moment, and the positions of the single feet are doubly limited, so that the single feet are more reliable. In this condition, the end of the arcuate restraining concave surface 44 remote from the upper restraining plane one 43 is forced to engage the lower end of the arcuate restraining convex surface 42 to ensure load bearing performance of the overall structure.
When the single leg is rotated downward into position, the end of the arcuate limiting concave surface 44 remote from the upper limiting plane 43 contacts the lower limiting plane 41 to form a limit to prevent the squeezing phenomenon caused by the contact of the single legs with each other.
Of course, the center seat and the single feet can be independently packaged and transported.
Example two
The working principle and structure of this embodiment are basically the same as those of the first embodiment, and the different structures are as follows: the upper limiting plane 40 is an inclined plane, and the inclination direction is: the upper limiting plane one 43 is an inclined plane, and the inclined direction and angle of the upper limiting plane one 43 are respectively consistent with those of the upper limiting plane 40.
Example III
The working principle and structure of this embodiment are basically the same as those of the first embodiment, and the different structures are as follows: the hinge shaft 22 is a solid shaft.
Example IV
The working principle and structure of this embodiment are basically the same as those of the first embodiment, and the different structures are as follows: the circumference of the arc surface of the arc limiting concave surface 44 is equal to the circumference of the arc surface of the arc limiting convex surface 42. The circumference of the arc surface of the arc limiting concave surface 44 is not preferably larger than that of the arc surface of the arc limiting convex surface 42, because the rotation angle is greatly reduced, and the single feet cannot be converged to form an inverted cone.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The detachable chair leg comprises a center seat (1), five single-leg connecting seats (2) which are connected to the circumference of the center seat (1) and are uniformly distributed in the circumference, and single legs (3) which are connected to each single-leg connecting seat (2), and is characterized in that each single-leg connecting seat (2) respectively comprises two mutually parallel connecting blocks (20) and a notch (21) is formed between the two connecting blocks (20), and a hinge shaft (22) which is connected to the two connecting blocks (20) and is transversely arranged in the notch, one end of each single leg (3) close to the connecting block (20) is connected with a C-shaped clamping part (30) with a downward opening, the hinge shaft (22) is clamped into the corresponding C-shaped clamping part (30), the diameter of the hinge shaft (22) is larger than the caliber of the opening of the C-shaped clamping part (30), a notch groove (31) positioned at two ends of the C-shaped clamping part (30) in the thickness direction is formed at the lower side of one end of each single leg (3), one of the two mutually parallel connecting blocks (20) is connected with one notch (31) and the other notch (31) extends into the notch (4) in a matched mode, the notch (31) extends into one notch (4) in the notch, the concave-convex abutting limiting structure (4) can prevent the single pin (3) from excessively rotating upwards by taking the hinge shaft (22) as a hinge point, and can prevent the end parts of the folded single pin (3) far away from the C-shaped clamping part (30) from contacting each other when the single pin (3) is folded downwards by taking the hinge shaft (22) as the hinge point;
the concave-convex offset limiting structure (4) comprises an upper limiting plane (40) arranged on the upper side of the connecting block (20), a lower limiting plane (41) arranged on the lower side of the connecting block (20), and an arc limiting convex surface (42) arranged on one end of the connecting block (20) far away from the center seat (1), wherein the upper limiting plane (40) is tangential to the arc limiting convex surface (42), the lower limiting plane (41) is tangential to the arc limiting convex surface (42), an upper limiting plane I (43) and an arc limiting concave surface (44) are arranged on the groove wall of the notch groove (31), the upper limiting plane I (43) is tangential to the arc limiting concave surface (44), the arc limiting concave surface (44) is matched with the arc limiting convex surface (42), and when the upper limiting plane (40) and the upper limiting plane I (43) are matched, the single pin (3) rotates upwards to a proper position, and when one end of the arc limiting concave surface (44) far away from the upper limiting plane I (43) is contacted with the lower limiting plane (41), the single pin (3) rotates downwards and is folded to form a uniform circumference at a position, and the end part of the single pin (3) far away from the C is far from the circumference of the clamp part (30);
the central seat (1) circumference still be equipped with five and be circumference evenly distributed's axial and dodge groove (12), the axial dodge groove (12) along the axial setting of central seat, be equipped with one between two mutually parallel connecting block (20) the groove (12) is dodged to the axial.
2. The detachable chair leg according to claim 1, characterized in that the circumference of the arc surface of the arc limiting concave surface (44) is greater than half the circumference of the arc surface of the arc limiting convex surface (42); when the single foot (3) rotates upwards to the 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-shaped surface of the arc-shaped limiting convex surface (42).
3. The chair leg according to claim 1, wherein the axis of the C-shaped engaging portion (30) coincides with the axis of the arcuate restraining concavity (44).
4. The detachable chair leg according to claim 1, wherein the upper limiting plane (40) is perpendicular to the axis of the center seat (1), and the upper limiting plane (43) is perpendicular to the axis of the center seat (1) when the upper limiting plane (43) and the upper limiting plane (40) are coincident.
5. The detachable chair leg according to claim 1, wherein the upper limiting plane (40) is an inclined plane, and the inclination direction is: the upper limiting plane I (43) is an inclined plane, and the inclined direction and the angle of the upper limiting plane I (43) are respectively consistent with those of the upper limiting plane (40).
6. The detachable chair leg according to claim 1, wherein the end surface of the single leg (3) provided with the C-shaped clamping part (30) is a first abutting plane (32), the upper end of the center seat (1) is circumferentially provided with a second abutting plane (10) which is opposite to the first abutting plane (32) one by one, and the first abutting plane (32) is matched with the second abutting plane (10) when the single leg (3) rotates upwards to the right position;
one end of the upper limiting plane (40) close to the center seat is connected with the abutting plane II (10) through an arc-shaped excessive concave surface (11), the upper limiting plane I (43) is connected with the abutting plane I (32) through an arc-shaped excessive convex surface (33), and the arc-shaped excessive concave surface (11) is matched with the arc-shaped excessive convex surface (33) after the single foot rotates upwards to be in place.
7. The detachable chair leg according to claim 1, wherein the lower end of the axial avoidance groove (12) is communicated with the outside, the upper end of the axial avoidance groove (12) extends below the upper end face of the center seat, and the groove width of the axial avoidance groove (12) is larger than the thickness of the C-shaped clamping part (30).
8. The detachable chair leg according to claim 1, wherein the two ends of the opening of the C-shaped clamping part (30) are respectively provided with a guiding inclined surface (34), and the two guiding inclined surfaces (34) are distributed in a splayed shape.
9. The detachable chair leg according to claim 1, wherein the center 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 lower side at every connecting block (20) is equipped with one respectively and follows the weight-reducing cell body (200) that connecting block (20) length direction set up, and one of them connecting block (20) of one of them single foot connecting seat (2) of two adjacent single foot connecting seats (2) and another single foot connecting seat (2) one of them connecting block form contained angle (a) that is less than 90 angles to two connecting blocks (20) that form contained angle (a) its relative weight-reducing cell body (200) are through corner cell body (201) intercommunication, two weight-reducing cell body (200) and corner cell body (201) form V type groove, V type groove have five and be circumference evenly distributed.
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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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442727.0A CN111642924B (en) | 2020-05-22 | 2020-05-22 | Detachable chair leg |
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| CN111642924A CN111642924A (en) | 2020-09-11 |
| CN111642924B true CN111642924B (en) | 2023-06-06 |
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| CN202010442727.0A Active CN111642924B (en) | 2020-05-22 | 2020-05-22 | Detachable chair leg |
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| 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 |
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2020
- 2020-05-22 CN CN202010442727.0A patent/CN111642924B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN111642924A (en) | 2020-09-11 |
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Effective date of registration: 20230425 Address after: 313000 Xiaoyuan street, Xiaoyuan village, Anji County, Huzhou City, Zhejiang Province (UNESCO new area, Anji County) Applicant after: ANJI HAN QIANG FURNITURE Co.,Ltd. Address before: 515157 No.3, Xianpeng laoganyuan Middle Road, Guiyu Town, Chaoyang District, Shantou City, Guangdong Province Applicant before: Peng Hanqiang |
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