CN113349585B - Detachable chair leg and assembling method thereof - Google Patents
Detachable chair leg and assembling method thereof Download PDFInfo
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- CN113349585B CN113349585B CN202110833437.3A CN202110833437A CN113349585B CN 113349585 B CN113349585 B CN 113349585B CN 202110833437 A CN202110833437 A CN 202110833437A CN 113349585 B CN113349585 B CN 113349585B
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- rotary
- detachable
- connecting shaft
- center seat
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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
- A47C7/006—Chair or stool bases with castors
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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
- A47C4/00—Foldable, collapsible or dismountable chairs
- A47C4/02—Dismountable chairs
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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
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention belongs to the technical field of chair legs, and particularly relates to a detachable chair leg and an assembling method thereof. It has solved technical problem such as difficult dismouting of current chair foot. The detachable chair leg comprises a plurality of integral leg pieces which are integrally injection molded with a center seat and at least one detachable leg piece which is connected with the center seat through a rotary assembly connecting mechanism, wherein the rotary assembly connecting mechanism comprises a radial supporting arm which is connected with the center seat and extends outwards in the radial direction of the center seat; the rotary connecting shaft is connected with the radial supporting arm and the axial lead of the rotary connecting shaft is transversely distributed; the rotary assembly anti-tripping device is connected to the inner end of the detachable foot piece close to the center seat; the rotatable assembly anti-trip and rotatable connection shaft locks the removable foot piece axially relative to the center seat when the rotatable assembly anti-trip rotates in place. The invention has the advantages that: easy assembly and disassembly, saves occupied space and reduces transportation and storage cost.
Description
Technical Field
The invention belongs to the technical field of chair legs, and particularly relates to a detachable chair leg and an assembling method thereof.
Background
Chair legs for the bottom support of a chair.
The chair legs comprise roller chair legs and non-roller chair legs, and can also comprise metal and non-metal chair legs.
Existing swivel chairs generally have legs that are manufactured from metallic and non-metallic materials. Particularly, the chair leg which is non-metal is generally made of plastic materials, and the chair leg with five integrated single legs is integrally formed through injection molding, so that the efficiency is high and the structural strength is good.
Although the integrally molded chair leg has the advantages as described above, the chair leg has the following disadvantages: when the chair leg is packaged, the chair leg occupies a larger space volume, so that the cost of transportation and storage is higher, and the design is unreasonable.
Secondly, there are some chair legs which are mutually sleeved in a manner which has the detachable advantage, but the sleeved manner is unfavorable for assembly, and after assembly, additional screws are needed for fixing, so that the efficiency of the tool is low and the assembly and disassembly operations are inconvenient.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems, and provides a detachable chair leg and an assembling method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the detachable chair leg comprises a plurality of integral leg pieces which are integrally injection molded with a center seat, and at least one detachable leg piece which is connected with the center seat through a rotary assembly connecting mechanism, wherein the rotary assembly connecting mechanism comprises:
a radial support arm connected to the center seat and extending radially outwardly of the center seat;
the rotary connecting shaft is connected with the radial supporting arm and the axial lead of the rotary connecting shaft is transversely distributed;
the rotary assembly anti-tripping device comprises a rotary connecting shaft, a rotary assembly anti-tripping device and a rotary assembly anti-tripping device, wherein the rotary assembly anti-tripping device is connected to the inner end of a detachable foot piece, which is close to a center seat, the rotary assembly anti-tripping device is downwards buckled on the rotary connecting shaft from the upper side of the rotary connecting shaft and is driven by external acting force to enable the rotary assembly anti-tripping device to rotate in place anticlockwise or clockwise around the axial lead of the rotary connecting shaft;
the rotatable assembly anti-trip and rotatable connection shaft locks the removable foot piece axially relative to the center seat when the rotatable assembly anti-trip rotates in place.
In the detachable chair leg, the rotary assembly anti-tripping device is provided with an arc groove matched with the rotary connecting shaft, the notch of the arc groove faces the outer end of the detachable leg piece, and the lower groove wall of the arc groove is attached to the lower cylindrical surface of one side, close to the center seat, of the rotary connecting shaft when the rotary assembly anti-tripping device rotates in place.
In the above detachable chair leg, the rotary assembly anti-release piece is connected to the middle position in one end of the detachable leg piece close to the center seat, and a space is reserved between two surfaces of the rotary assembly anti-release piece in the thickness direction and corresponding two side walls of the detachable leg piece.
In the detachable chair leg, one side of the rotary assembly anti-tripping device, which is close to the center seat, is provided with the convex limiting clamping part protruding out of the inner end surface of the detachable leg piece, the periphery of the center seat is provided with the convex base, the radial support arm is connected to one end, far away from the center seat, of the convex base, and one end, far away from the center seat, of the convex base is provided with the concave limiting clamping groove matched with the convex limiting clamping part, and when the rotary assembly anti-tripping device rotates to the position, the convex limiting clamping part stretches into and is fixed in the concave limiting clamping groove.
In the detachable chair leg, two radial support arms are parallel to each other, one end of the rotary connecting shaft is connected to one end of one radial support arm far away from the outer convex base, the other end of the rotary connecting shaft is connected to one end of the other radial support arm far away from the outer convex base, the radial support arms are clamped in the spacing space when the rotary assembly anti-tripping assembly rotates in place, a vertical inner space is formed among the outer convex base, the two radial support arms and the rotary connecting shaft, the rotary assembly anti-tripping device enters the vertical inner space from the upper side of the vertical inner space, and the notch of the indent limiting clamping groove is communicated with the vertical inner space.
In the detachable chair leg, an upper inclined surface which is respectively positioned in the interval space is arranged inside one end of the detachable leg piece provided with the rotary assembly anti-tripping device, and a lower inclined surface which is respectively matched with the upper inclined surface is arranged on the upper side of each radial supporting arm.
In the detachable chair leg, the inner end face of the detachable leg piece, which is provided with the rotary assembly anti-tripping device, is a first U-shaped inclined face, the outer end face of the outer convex base, which is provided with the radial supporting arm, is provided with a second U-shaped inclined face which is matched with the first U-shaped inclined face, and the first U-shaped inclined face and the second U-shaped inclined face are both inverted U-shaped faces.
In the detachable chair leg, when the rotary assembly anti-tripping device rotates in place, the upper groove wall of the arc groove is attached to the upper cylindrical surface of one side of the rotary connecting shaft, which is close to the center seat.
In the detachable chair leg, the caliber of the notch of the circular arc groove is equal to or larger than the diameter of the rotary connecting shaft.
The assembling method of the detachable chair leg comprises the following steps:
s1, preparing a plurality of integral foot pieces integrally injection molded with a center seat and a detachable foot piece;
s2, the inner end of the detachable foot piece is rotationally assembled, anti-tripping and aligned with the rotary connecting shaft, and the rotary assembly anti-tripping is clamped and sleeved on the rotary connecting shaft;
s3, enabling the rotary assembly anti-tripping device to rotate anticlockwise or clockwise around the transverse axis of the rotary connecting shaft under the drive of external acting force to be in place, enabling the first U-shaped inclined surface to be anastomotic with the second U-shaped inclined surface and enabling the upper inclined surface to be anastomotic with the lower inclined surface to be anastomotic together when the rotary assembly anti-tripping device rotates in place, enabling the outer convex limiting clamping part to be clamped into and fixed in the inner concave limiting clamping groove, and enabling the detachable foot piece and the integral foot piece to be uniformly distributed in circumference after assembly is completed.
Compared with the prior art, the invention has the advantages that:
1. the rotary connecting shaft plays a role in positioning, the rotary connecting shaft is cooperated with the design of the rotary assembly anti-tripping, the detachable foot piece can be ensured to be assembled by taking the rotary connecting shaft as a rotary connecting point, the uniqueness and the accuracy of the installation position of the detachable foot piece are ensured, meanwhile, the rotary connecting shaft and the rotary assembly anti-tripping mutually cooperate to axially lock the detachable foot piece, the phenomena of falling and the like can be prevented, and the assembly efficiency and the subsequent disassembly efficiency can be further improved by utilizing the rotary assembly.
When the rotary assembly anti-tripping rotary in-place, the detachable foot piece is propped against the center seat, so that the phenomena of falling off, cracking and the like at the joint of the chair feet during bearing can be prevented.
2. The design of the outer convex limiting clamping part and the inner concave limiting clamping groove can improve the bearing performance of the joint, meanwhile, the limiting effect of rotating in place can be achieved, the consistency of the detachable foot piece after being assembled in place is ensured, the combination design can prevent the rotating assembly from moving along the axial direction of the rotating connecting shaft, and the locking is more stable and reliable.
3. The at least one detachable foot piece can be designed to greatly reduce the occupied space and the occupied volume, save the transportation and storage cost, and simultaneously, the assembly and the disassembly are only needed by manual operation, so that the assembly and the disassembly are flexible, convenient and simple.
Drawings
Fig. 1 is a schematic view of a detachable chair leg according to the present invention.
Fig. 2 is an enlarged schematic view of the structure of fig. 1 taken along line A-A.
Fig. 3 is a schematic view showing a large-angle inclined state structure of the detachable foot piece before counterclockwise assembly.
Fig. 4 is a schematic view of the structure of the detachable blade in a large-angle inclined state before clockwise assembly.
Fig. 5 is a schematic perspective view of a detachable leg piece according to the present invention.
Fig. 6 is an exploded view of the detachable chair leg according to the present invention.
Fig. 7 is a schematic structural diagram of the four integrated foot pieces and the center seat provided by the invention after being integrally formed.
Fig. 8 is a schematic view showing a state of removing the detachable leg piece and being mounted in the package.
Fig. 9 is a schematic structural diagram of a second embodiment provided by the present invention.
In the figure, a center seat 1, a convex base 10, a second U-shaped inclined surface 100, a concave limiting clamping groove 11, an integral foot piece 2, a rotary assembly connecting mechanism 3, a radial supporting arm 30, a lower inclined surface 300, a rotary connecting shaft 31, a rotary assembly anti-tripping device 32, an arc groove 320, a lower side groove wall 321, an upper side groove wall 322, a convex limiting clamping part 33, a detachable foot piece 4, an upper inclined surface 41, a first U-shaped inclined surface 42, a roller 5 and a vertical inner space 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 plurality of integral leg pieces 2 which are integrally injection molded with a center seat 1, and a detachable leg piece 4 which is connected with the center seat 1 through a rotary assembly connecting mechanism 3, wherein the transverse section of the detachable leg piece 4 is in a U shape as shown in fig. 5, and in order to improve the structural strength, a reinforcing rib 43 is arranged in a U-shaped groove of the detachable leg piece 4.
The number of the integrated foot pieces 2 is four, and the detachable foot pieces 4 and the integrated foot pieces 2 are uniformly distributed circumferentially so as to achieve the purpose of supporting.
The center of the center seat 1 is provided with a vertical shaft hole, so that the assembly of the seat cushion shaft is facilitated.
As shown in fig. 2 to 7, the rotary assembly connection mechanism 3 includes:
a radial support arm 30 connected to the center seat 1 and extending radially outwardly of the center seat 1; the outward extension of the radial support arms 30 facilitates access to the inner ends of the removable tabs 4 to increase the strength of the connection.
The rotary connecting shaft 31 is connected to the radial supporting arm 30, and the axial lines of the rotary connecting shaft 31 are transversely distributed; the rotary connecting shaft 31 serves the purpose of positioning and preventing the detachment to ensure the strength of the connection structure with the detachable blade 4.
The radial support arm 30, the rotary connecting shaft 31 and the center seat 1 are integrally injection molded, so that the production efficiency and the structural strength are ensured.
The rotary assembly anti-tripping 32 is connected to the inner end of the detachable foot piece 4, which is close to the center seat 1, and the rotary assembly anti-tripping 32 of the detachable foot piece 4 is buckled on the rotary connecting shaft 31 downwards from the upper side of the rotary connecting shaft 31 and driven by external acting force to enable the rotary assembly anti-tripping 32 to rotate in place anticlockwise or clockwise around the axial lead of the rotary connecting shaft 31;
when rotating anticlockwise: the bottom surface of the center seat 1 faces downwards, as shown in fig. 3;
when rotating clockwise: the bottom surface of the center seat 1 faces upwards, as shown in fig. 4;
the rotating assembly anti-release 32 and the rotating connection shaft 31 lock the detachable tab 4 axially relative to the central seat 1 when the rotating assembly anti-release 32 is rotated into place.
The rotary connecting shaft 31 plays a role in positioning, and the rotary assembling anti-tripping 32 is cooperatively designed, so that the detachable foot piece 4 can be assembled by taking the rotary connecting shaft 31 as a rotary connecting point, the uniqueness and the accuracy of the installation position of the detachable foot piece 4 are ensured, meanwhile, the detachable foot piece 4 can be axially locked by the mutual matching of the rotary connecting shaft 31 and the rotary assembling anti-tripping 32, the phenomena of falling and the like can be prevented, and the assembly efficiency and the subsequent disassembly efficiency can be further improved by utilizing the rotary assembling.
Secondly, this embodiment need not the screw that adds outward and fixes to and need not to dismantle the bolt with the help of the instrument, easy dismounting and simple to control and use more nimble convenience.
The design of at least one detachable leg piece can greatly reduce the occupied space and the volume, and can save the transportation and storage cost, such as the figure 9.
When the rotation assembly anti-release 32 rotates in place, the detachable foot piece 4 is propped against the center seat, so that the phenomena of falling off, cracking and the like at the joint of the chair feet during bearing can be prevented.
The rotation angle of the rotation assembly anti-trip 32 of the present embodiment is an acute angle.
Further, as shown in fig. 2 and fig. 5-8, the rotary assembly anti-release 32 has an arc groove 320 matching with the rotary connecting shaft 31, the arc groove 320 is a C-shaped groove, the notch of the arc groove 320 faces the outer end of the detachable leg piece 4, so as to be convenient to clamp the rotary connecting shaft 31 and play the anti-release purpose, and when the rotary assembly anti-release 32 rotates in place, the lower groove wall 321 of the arc groove 320 is attached to the lower cylindrical surface of the side of the rotary connecting shaft 31 close to the center seat 1.
The upper groove wall 322 of the circular arc groove 320 is fitted to the upper cylindrical surface of the side of the rotary connecting shaft 31 near the center seat 1 when the rotary assembly anti-trip 32 is rotated in place. The circumference of the mating contact surface between the circular arc groove 320 and the rotary connecting shaft 31 is smaller than or equal to the semicircular circumference of the rotary connecting shaft 31, and the upper groove wall 322 is located above the side of the lower groove wall 321 when the rotary assembly is in place, for example, above the right side of fig. 2 of the present embodiment. The offset design can be assembled and disassembled conveniently, and interference can be prevented.
The caliber of the notch of the circular arc groove 320 is equal to or larger than the diameter of the rotary connecting shaft 31. This design can facilitate mutual and un-socket.
The lower groove wall 321 is attached to the lower cylindrical surface of the side of the rotary connecting shaft 31 close to the center seat 1, and enlarges the contact surface with the rotary connecting shaft 31 to play a role in connection and anti-disengaging when the rotary assembly anti-disengaging 32 rotates in place, that is, the lower groove wall 321 bears the lower cylindrical surface when the chair leg is in bearing.
Secondly, the rotary assembly anti-release 32 is connected to the middle position in one end of the detachable foot piece 4 close to the center seat 1, and the two surfaces in the thickness direction of the rotary assembly anti-release 32 and the corresponding two side walls of the detachable foot piece 4 leave a spacing space, so that the design of the spacing space can be beneficial to demolding of the detachable foot piece and the function expansion application.
In addition, as shown in fig. 2 and fig. 5-8, a side of the rotary assembly anti-trip 32, which is close to the center seat 1, is provided with a convex limiting clamping part 33 protruding out of the inner end surface of the detachable foot piece 4, a convex base 10 is arranged in the circumferential direction of the center seat 1, the radial supporting arm 30 is connected to one end of the convex base 10, which is far away from the center seat 1, and a concave limiting clamping groove 11 matched with the convex limiting clamping part 33 is arranged at one end of the convex base 10, which is far away from the center seat 1, and when the rotary assembly anti-trip 32 is assembled and rotated in place, the convex limiting clamping part 33 stretches into and is fixed in the concave limiting clamping groove 11.
The groove depth of the indent limiting clamping groove 11 gradually deepens from top to bottom, the outer protruding limiting clamping part 33 enters the indent limiting clamping groove 11 from the upper side of the indent limiting clamping groove 11 at an inclined angle and is clamped in place downwards along the indent limiting clamping groove 11, the design of the outer protruding limiting clamping part 33 and the indent limiting clamping groove 11 can improve the bearing performance of the connecting part, meanwhile, the rotation limiting effect can be achieved, the consistency of the detachable foot piece after being assembled in place is ensured, the combination design can prevent the rotation assembly anti-tripping 32 from moving along the axial direction of the rotation connecting shaft 31, and the locking is more stable and reliable.
Preferably, the bottom of the concave limiting clamping groove 11 in the present embodiment is a plane, and the convex limiting clamping part 33 has an anastomotic plane anastomotic with the plane, so as to ensure connection stability.
Secondly, the radial support arms 30 of the present embodiment have two radial support arms and are parallel to each other, one end of the rotating connection shaft 31 is connected to one end of one radial support arm 30 far away from the outer convex base 10, the other end of the rotating connection shaft 31 is connected to one end of the other radial support arm 30 far away from the outer convex base 10, and when the rotating assembly anti-releasing device 32 is assembled and rotated in place, the radial support arms 30 are clamped in the spacing space, so that the assembly in place is ensured, and the structural strength is further improved.
A vertical inner space a is formed among the outer convex base 10, the two radial supporting arms 30 and the rotary connecting shaft 31, the rotary assembly anti-tripping device 32 enters the vertical inner space from the upper side of the vertical inner space, and the notch of the inward concave limiting clamping groove 11 is communicated with the vertical inner space a.
The design of the two radial support arms 30 can fix the two ends of the rotary connecting shaft 31, and meanwhile, when bearing, the structure can further improve the bearing performance and meet the use requirements of people with different weights.
Preferably, an upper inclined surface 41 located in the space is provided inside the end of the detachable leg piece 4 provided with the rotation assembly anti-trip 32, and a lower inclined surface 300 matching with the upper inclined surface 41 is provided on the upper side of each radial support arm 30.
The mating of upper inclined surface 41 and lower inclined surface 300 may further improve load bearing performance and further limit position restrictions on rotational assembly in place.
Secondly, be equipped with a plurality of interval even strengthening rib pieces respectively in every interval space, be equipped with foretell upper inclined plane 41 respectively on every strengthening rib piece, upper inclined plane 41 be located same inclined plane to prevent that the mutual high low level from leading to the equipment unable rotation in place. Or a whole reinforcing rib plate is respectively arranged in each interval space, and the upper inclined surface 41 is arranged on the reinforcing rib plate.
In addition, the inner end surface of the detachable leg piece 4 provided with the rotary assembly anti-tripping device 32 is a first U-shaped inclined surface 42, the outer end surface of the outer convex base 10 provided with the radial supporting arm 30 is provided with a second U-shaped inclined surface 100 which is matched with the first U-shaped inclined surface 42, and the first U-shaped inclined surface 42 and the second U-shaped inclined surface 100 are both inverted U-shaped surfaces. The design of the first and second U-shaped inclined surfaces 42 and 100 also serves to enhance load bearing performance and limit the rotational assembly in place.
In order to facilitate disassembly and assembly, first rounded corners are respectively arranged at two ends of the first U-shaped inclined surface 42, and circular arc concave matching surfaces matched with the first rounded corners are respectively arranged at two ends of the second U-shaped inclined surface 100.
As shown in fig. 2 to 8, the assembling method of the detachable chair leg comprises the following steps:
s1, preparing a plurality of integral foot pieces 2 which are integrally injection molded with a center seat 1 and a detachable foot piece 4;
s2, aligning the rotary assembly anti-tripping 32 at the inner end of the detachable foot piece 4 with the rotary connecting shaft 31 and clamping the rotary assembly anti-tripping 32 on the rotary connecting shaft 31;
s3, the rotation assembly anti-trip 32 is driven by the external force to rotate anticlockwise or clockwise around the transverse axis of the rotation connecting shaft 31 to a proper position, the first U-shaped inclined surface 42 and the second U-shaped inclined surface 100 are anastomotic together, the upper inclined surface 41 and the lower inclined surface 300 are anastomotic together, the outer convex limiting clamping part 33 is clamped into and fixed in the inner concave limiting clamping groove 11, and the detachable leg piece 4 and the integral leg piece 2 are uniformly distributed in circumference after the assembly is completed.
Preferably, the number of removable footage of this embodiment is 1-4. As can be seen from fig. 9, the height of the packing box in this embodiment is significantly lower than that of a five-star-foot packing box which cannot be disassembled by five feet.
Example two
As shown in fig. 1 and 9, a roller chair leg has the detachable chair leg according to the first embodiment, and rollers 5 mounted on the lower sides of the outer ends of the integrated leg piece 2 and the detachable leg piece 4.
Example III
A swivel chair having the roller chair leg of embodiment two, and a seat assembly and a back assembly mounted on the roller chair leg.
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 (7)
1. The detachable chair leg comprises a plurality of integral leg pieces (2) which are integrally injection molded with a center seat (1), and at least one detachable leg piece (4) which is connected with the center seat (1) through a rotary assembly connecting mechanism (3), and is characterized in that the rotary assembly connecting mechanism (3) comprises:
a radial support arm (30) connected to the central seat (1) and extending radially outwards of the central seat (1);
the rotary connecting shaft (31) is connected to the radial supporting arm (30) and the axial lines of the rotary connecting shaft (31) are transversely distributed;
the rotary assembly anti-tripping device comprises a rotary assembly anti-tripping device (32) and a rotary assembly anti-tripping device, wherein the rotary assembly anti-tripping device (32) is connected to the inner end of a detachable foot piece (4) close to a center seat (1), the rotary assembly anti-tripping device (32) of the detachable foot piece (4) is downwards buckled on a rotary connecting shaft (31) from the upper side of the rotary connecting shaft (31) and driven by external acting force to enable the rotary assembly anti-tripping device (32) to rotate in place anticlockwise or clockwise around the axial lead of the rotary connecting shaft (31);
when the rotary assembly anti-tripping device (32) rotates in place, the rotary assembly anti-tripping device (32) and the rotary connecting shaft (31) enable the detachable foot piece (4) to be axially locked relative to the center seat (1);
the rotary assembly anti-tripping device is characterized in that the rotary assembly anti-tripping device (32) is connected to the middle position in one end of the detachable foot piece (4) close to the center seat (1), and a space is reserved between two surfaces of the rotary assembly anti-tripping device (32) in the thickness direction and corresponding two side walls of the detachable foot piece (4);
the rotary assembly anti-tripping device is characterized in that one side of the rotary assembly anti-tripping device (32) close to the center seat (1) is provided with an outer convex limiting clamping part (33) protruding out of the inner end face of the detachable foot piece (4), an outer convex base (10) is arranged in the circumferential direction of the center seat (1), the radial supporting arm (30) is connected to one end, far away from the center seat (1), of the outer convex base (10), an inner concave limiting clamping groove (11) matched with the outer convex limiting clamping part (33) is arranged at one end, far away from the center seat (1), of the outer convex base (10), and when the rotary assembly anti-tripping device (32) is assembled and rotated in place, the outer convex limiting clamping part (33) stretches into and is fixed in the inner concave limiting clamping groove (11);
radial support arm (30) have two and be parallel to each other, one end of swivelling joint axle (31) is connected in one of them radial support arm (30) and is kept away from the one end of evagination base (10), the other end of swivelling joint axle (31) is connected in one end of keeping away from evagination base (10) in another radial support arm (30), works as rotatory equipment trip-proof (32) equipment is rotated in place radial support arm (30) card in interval space, form vertical inner space (a) between evagination base (10), two radial support arms (30) and swivelling joint axle (31), rotatory equipment trip-proof (32) are gone into in the vertical inner space from the upside of vertical inner space, notch and vertical inner space (a) intercommunication of indent restriction draw-in groove (11).
2. The detachable chair leg according to claim 1, wherein the rotation assembly anti-release (32) is provided with an arc groove (320) matched with the rotation connecting shaft (31), the notch of the arc groove (320) faces the outer end of the detachable leg piece (4), and the lower groove wall (321) of the arc groove (320) is attached to the lower cylindrical surface of the side, close to the center seat (1), of the rotation connecting shaft (31) when the rotation assembly anti-release (32) rotates in place.
3. The detachable chair leg according to claim 1, wherein an upper inclined surface (41) respectively located in the space is provided inside one end of the detachable leg piece (4) provided with the rotation assembly anti-releasing device (32), and a lower inclined surface (300) which is matched with the upper inclined surface (41) is provided on the upper side of each radial supporting arm (30).
4. The detachable chair leg according to claim 1, wherein the inner end surface of the detachable leg piece (4) provided with the rotary assembly anti-releasing device (32) is a first U-shaped inclined surface (42), the outer end surface of the outer convex base (10) provided with the radial supporting arm (30) is provided with a second U-shaped inclined surface (100) which is matched with the first U-shaped inclined surface (42), and the first U-shaped inclined surface (42) and the second U-shaped inclined surface (100) are both inverted U-shaped surfaces.
5. The detachable chair leg according to claim 2, characterized in that the upper groove wall (322) of the circular arc groove (320) is conformed to the upper cylindrical surface of the side of the rotary connecting shaft (31) close to the center seat (1) when the rotary assembling anti-releasing device (32) is rotated into place.
6. The detachable chair leg according to claim 5, characterized in that the notch aperture of the circular arc groove (320) is equal to or larger than the diameter of the rotary connecting shaft (31).
7. A method of assembling a removable chair leg for use in any one of claims 1-6, the method comprising the steps of:
s1, preparing a plurality of integral foot pieces (2) which are integrally injection molded with a center seat (1) and a detachable foot piece (4);
s2, aligning the rotary assembly anti-tripping (32) at the inner end of the detachable foot piece (4) with the rotary connecting shaft (31) and clamping the rotary assembly anti-tripping (32) on the rotary connecting shaft (31);
s3, driving by external acting force to enable the rotary assembly anti-tripping device (32) to rotate around the transverse axis of the rotary connecting shaft (31) anticlockwise or clockwise to be in place, enabling the first U-shaped inclined surface (42) to be matched with the second U-shaped inclined surface (100) and enabling the upper inclined surface (41) to be matched with the lower inclined surface (300) when the rotary assembly anti-tripping device rotates to be in place, enabling the outer protruding limiting clamping part (33) to be clamped into and fixed in the inner concave limiting clamping groove (11), and enabling the detachable foot piece (4) and the integral foot piece (2) to be uniformly distributed in circumference after assembly is completed.
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| CN202110833437.3A CN113349585B (en) | 2021-07-22 | 2021-07-22 | Detachable chair leg and assembling method thereof |
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| CN202110833437.3A CN113349585B (en) | 2021-07-22 | 2021-07-22 | Detachable chair leg and assembling method thereof |
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| CN113349585B true CN113349585B (en) | 2023-07-07 |
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