CN114458670A - Connecting structure of five-star foot base and supporting legs - Google Patents
Connecting structure of five-star foot base and supporting legs Download PDFInfo
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- CN114458670A CN114458670A CN202111599793.XA CN202111599793A CN114458670A CN 114458670 A CN114458670 A CN 114458670A CN 202111599793 A CN202111599793 A CN 202111599793A CN 114458670 A CN114458670 A CN 114458670A
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- base
- block
- supporting
- supporting leg
- blocks
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- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/44—Leg joints; Corner joints
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
A connection structure of a five-pointed-star-shaped base and supporting legs is used as a preferable scheme of the invention and comprises the base and the supporting legs, wherein a limiting plate and a step block are formed at the end part of the base, a cavity is formed between the limiting plate and the step block, and a limiting groove is formed on the inner side surface of the base; supporting blocks are formed at the end parts of the supporting legs, bumps and bearing blocks are distributed at the two ends of each supporting block, and positioning blocks are distributed at the head parts of the supporting blocks; the base and the supporting leg are matched through the clamping of the positioning block and the stepped block, and the clamping matching of the limiting groove and the lug realizes the limiting of the base and the supporting leg in six degrees of freedom, so that the stable connection between the base and the supporting leg is ensured.
Description
Technical Field
The invention belongs to the technical field of five-star foot supports, and particularly relates to a connecting structure of a five-star foot base and supporting legs.
Background
The three-star foot, the four-star foot and the five-star foot are commonly used support accessories in office chairs and are generally made of nylon and steel materials, and the existing five-star foot mainly falls into two categories: one is a unitary piece integrally formed from a raw material; the other is a detachable part formed by assembling a base and a support leg. The integral piece is large in size and difficult to store and transport, and the disassembly and assembly piece needing to be assembled has the problems of complex installation, poor stability of a connecting part, easiness in disengagement and insufficient strength.
Patent publication No. CN110115446A, Chinese invention patent with publication No. 2019.08.13 discloses a connecting structure of a five-star foot base and supporting legs, which comprises a base and supporting legs, wherein an upper connecting body is arranged on the side wall of the base, a lower connecting body is arranged on the supporting legs, a first bulge is arranged at the lower end of the end part of the upper connecting body, a first groove is arranged on the side wall of the lower side of the upper connecting body, a second groove is arranged on the lower connecting body, a second bulge is arranged at the end part of the lower connecting body, the first bulge is complementary with the second groove, and the second bulge is inserted into the first groove.
The five-pointed star foot in the invention patent is convenient to install, but the base and the supporting leg are not in limited connection from multiple directions, and when force in the direction of unlimited connection is applied, the base and the supporting leg are separated, so that a connecting structure of the base and the supporting leg, which has the advantages of good stability of a connecting part, simplicity in installation and high strength, is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a connecting structure of a five-star foot base and supporting legs, which not only ensures the stability of a connecting part, but also can realize quick installation.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a connection structure of a five-pointed-star-shaped base and supporting legs is used as a preferable scheme of the invention and comprises the base and the supporting legs, wherein a limiting plate and a step block are formed at the end part of the base, a cavity is formed between the limiting plate and the step block, and a limiting groove is formed on the inner side surface of the base; supporting blocks are formed at the end parts of the supporting legs, bumps and bearing blocks are distributed at the two ends of each supporting block, and positioning blocks are distributed at the head parts of the supporting blocks; the lugs on the two sides of the supporting leg are clamped into the limiting grooves on the two sides of the base, the positioning block on the head of the supporting leg is received by the low-step part of the step block, and the front end of the positioning block abuts against the side face of the high-step part.
As a preferable scheme of the invention, the head of the base is formed with a receiving part, the receiving part comprises a receiving bottom surface, the lower end of the receiving bottom surface forms an arc surface, a transition surface is formed between the receiving bottom surface and the arc surface, and two ends of the arc surface extend to the limiting groove.
As a preferable scheme of the invention, the base comprises a base plane, the limiting plate and the step block are both positioned on the base plane, and a certain height difference is arranged between the base plane and the cambered surface.
As a preferable scheme of the invention, the step block is positioned at the front end of the limiting plate, and the limiting plate is in a wave shape with high two sides and low middle.
As a preferred scheme of the invention, the two step blocks are in a group, the step blocks are symmetrically arranged from left to right, and a step cavity is formed between the step blocks.
As a preferable aspect of the present invention, the leg includes a leg body, and the leg body abuts against the receiving portion.
As a preferred aspect of the present invention, the receiving block is connected to a projection and a positioning block, a length dimension of the positioning block is smaller than a length dimension of the projection and the receiving block, and a width dimension of the positioning block is smaller than a width dimension of the projection and the receiving block.
As a preferable scheme of the present invention, the supporting block includes a supporting surface, a suspended surface is formed at an upper end of the supporting surface, an abutting surface is formed between the supporting surface and the suspended surface, and the supporting surface abuts against the receiving bottom surface.
As a preferable scheme of the present invention, the positioning block, the projection, and the receiving block have reinforcing ribs formed at upper ends thereof.
In a preferred embodiment of the present invention, the supporting side of the supporting block is in clearance fit with the receiving side of the receiving portion.
The invention has the beneficial effects that:
1. according to the invention, the base and the supporting legs are in clamping fit through the positioning blocks and the step blocks, and the limiting on six degrees of freedom of the base and the supporting legs is realized through the clamping fit of the limiting grooves and the lugs, so that the stable connection between the base and the supporting legs is ensured.
2. The invention realizes the stable connection between the base and the supporting leg through two simple clamping structures, is convenient for actual installation and disassembly, and is also convenient for replacement of the same model when one of the base and the supporting leg is damaged.
3. The detachable base and the supporting legs are assembled into a complete five-star foot, so that the storage volume of the five-star foot is reduced, and the five-star foot is convenient to store daily and transport in multiple places.
4. According to the invention, the bearing block is arranged between the lug and the positioning block, and the reinforcing ribs are arranged above the lug, the bearing block and the positioning block, so that the strength of the landing leg structure is increased, correspondingly, the connection strength of the base and the landing leg is also ensured, and the integral strength of the connection structure is increased.
5. The limiting plate arranged behind the step blocks is beneficial to balancing whether the force borne by the fixed step blocks is overloaded or not, the step cavity between the step blocks improves the elasticity of the step blocks, the step blocks are prevented from being broken, and the service life of the whole connecting structure is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of the present invention at A;
FIG. 3 is a side connection view of the present invention;
FIG. 4 is a schematic structural view of the base of the present invention;
FIG. 5 is an enlarged view of a portion of the present invention at base B;
FIG. 6 is a schematic structural view of a leg of the present invention;
reference numbers in the figures: the supporting leg comprises a base 1, supporting legs 2, a limiting plate 11, a cavity 12, a step block 13, a step cavity 14, a limiting groove 15, a bearing part 16, a base plane 17, a supporting block 21, a bump 22, a bearing block 23, a positioning block 24, a supporting leg body 25, a reinforcing rib 26, a low-step part 131, a high-step part 132, a bearing bottom surface 161, an arc surface 162, a transition surface 163, a bearing side surface 164, a supporting surface 211, a suspending surface 212, an abutting surface 213 and a supporting side surface 214.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1-4, a connection structure of five stars foot base and landing leg, including base 1, landing leg 2, the tip of base 1 forms limiting plate 11, ladder piece 13, forms cavity 12 between limiting plate 11, the ladder piece 13, and the medial surface of base 1 forms spacing recess 15, ladder piece 13 is for having elastic working of plastics, and ladder piece 13 can be to cavity 12 department slope under the effect of power, and is corresponding, and limiting plate 11 of establishing at ladder piece 13 rear is used for weighing apparatus the power that ladder piece 13 received and surpasss the appointed standard, if ladder piece 13 too slopes to be about to arrive limiting plate 11 when, then judges ladder piece 13 atress too big, has the cracked risk of can not kick-backing even.
A supporting block 21 is formed at the end part of the supporting leg 2, the supporting block 21 is positioned at the front end of the supporting leg body 25, the supporting block 21 is smaller than the supporting leg body 25 in size and is strip-shaped, a convex block 22 and a bearing block 23 are distributed at two ends of the supporting block 21, the convex block 22 and the bearing block 23 are in bilateral symmetry structures, and a positioning block 24 is distributed at the head part of the supporting block 21; the convex blocks 22 at two sides of the supporting leg 2 are clamped in the limiting grooves 15 at two sides of the base 1, the positioning block 24 at the head of the supporting leg 2 is received by the low step part 131 of the step block 13, the front end of the positioning block 24 is abutted against the side surface of the high step part 132, and the low step part 131 and the high step part 132 which form the step block 13 are also elastic plastic pieces.
Specifically, the limiting groove 15 is a sunken semicircle, and correspondingly, the lug 22 matched with the limiting groove is also in a round cake shape; of course, the limiting groove 15 and the protrusion 22 can be set to other shapes under the effect that the base 1 and the supporting leg 2 can limit left, right, back and lower positions.
During installation, the base 1 and the supporting legs 2 are turned over, the supporting legs 2 are located above the base 1, the supporting legs 2 are slightly obliquely inserted into the base 1, the bumps 22 enter the limiting grooves 15 first, meanwhile, the positioning blocks 24 located at the front ends of the bumps 22 abut against the side faces of the high-step portions 132, the high-step portions 132 are inclined towards the cavities 12 under the action of the positioning blocks 24, further, after the bumps 22 completely enter the limiting grooves 15, the high-step portions 132 generate reverse acting forces on the positioning blocks 24, front limiting and upper limiting of the positioning blocks 24 are achieved, and meanwhile, the supporting leg body 25 is limited by the bearing portions 16.
As shown in fig. 4-5, the receiving portion 16 is formed at the head of the base 1, the receiving portion 16 includes a receiving bottom surface 161, an arc surface 162 is formed at the lower end of the receiving bottom surface 161, a transition surface 163 is formed between the receiving bottom surface 161 and the arc surface 162, the transition surface 163 is received by the reinforcing column of the base 1, two ends of the arc surface 162 extend to the limiting groove 15, the arc surface 162 and the transition surface 163 are not in contact with the supporting leg 2, and the influence on the clamping between the positioning block 24 and the step block 13, the bump 22 and the receiving block 23 is avoided, which further causes the failure of the connection between the base 1 and the supporting leg 2.
The limit plate 11 is in a wave shape with two sides high and the middle low, and the limit plate 11 arranged in the wave shape reserves enough allowance for the step block 13 to tilt backwards.
The ladder piece 13 is two to be a set of, and ladder piece 13 bilateral symmetry lays, forms ladder cavity 14 between the ladder piece 13, and the difference is better with monoblock ladder piece 13, and the ladder piece 13 elasticity that the centre left ladder cavity 14 is better, difficult fracture, and life is longer.
As shown in fig. 6, the landing leg 2 includes a landing leg body 25, the landing leg body 25 abuts against the receiving portion 16, the receiving portion 16 limits the landing leg body 25, and the receiving portion 16 shares the front limit of the landing leg 2, which is defined by the step block 13, so that the step block 13 is prevented from being broken, and the service life of the connection structure is prolonged.
In order to ensure the strength among the positioning block 24, the projection 22 and the receiving block 23, a reinforcing rib 26 is further formed at the upper ends of the positioning block 24, the projection 22 and the receiving block 23.
The supporting block 21 comprises a supporting side surface 214 and a supporting surface 211, wherein the upper end of the supporting surface 211 forms a suspension surface 212, and an abutting surface 213 is formed between the supporting surface 211 and the suspension surface 212.
When the base 1 and the leg 2 are completely engaged, the supporting surface 211 abuts against the receiving bottom surface 161, and the supporting side surface 214 of the supporting block 21 is in clearance fit with the receiving side surface 164 of the receiving portion 16.
In the second embodiment, the base is connected with only one support leg, the base can be connected with different numbers of support legs in the second embodiment, the base can be connected with 5 support legs in a clamping mode, and the base can be connected with 3 support legs distributed in a staggered mode in a clamping mode, so that the storage volume of the five-star legs is reduced, and the five-star legs can be conveniently stored and transported in multiple places. .
Example three: the connection structure of the base and the support leg in the first and second embodiments can also be widely applied to the same type of tripod and quadrat tripod.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the supporting leg comprises a base 1, supporting legs 2, a limiting plate 11, a cavity 12, a step block 13, a step cavity 14, a limiting groove 15, a receiving part 16, a base plane 17, a supporting block 21, a bump 22, a receiving block 23, a positioning block 24, a supporting leg body 25, a reinforcing rib 26, a low-step part 131, a high-step part 132, a receiving bottom surface 161, an arc surface 162, a transition surface 163, a supporting surface 211, a suspension surface 212, an abutting surface 213, a supporting side surface 214 and the like, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a connection structure of five star foot bases and landing leg which characterized in that: the support leg comprises a base (1) and support legs (2), wherein a limiting plate (11) and a step block (13) are formed at the end part of the base (1), a cavity (12) is formed between the limiting plate (11) and the step block (13), and a limiting groove (15) is formed on the inner side surface of the base (1); a supporting block (21) is formed at the end part of the supporting leg (2), a convex block (22) and a bearing block (23) are arranged at the two ends of the supporting block (21), and a positioning block (24) is arranged at the head part of the supporting block (21); the convex blocks (22) at the two sides of the supporting leg (2) are clamped into the limiting grooves (15) at the two sides of the base (1), the positioning blocks (24) at the head of the supporting leg (2) are received by the low-step parts (131) of the step blocks (13), and the front ends of the positioning blocks are abutted against the side surfaces of the high-step parts (132).
2. The connecting structure of a five-pointed star foot base and a supporting leg as claimed in claim 1, wherein: the head of base (1) is formed with acceptor (16), and acceptor (16) is including accepting bottom surface (161), and the lower extreme of accepting bottom surface (161) forms cambered surface (162), accepts and forms transition face (163) between bottom surface (161) and cambered surface (162), and the both ends of cambered surface (162) extend to spacing recess (15).
3. The connecting structure of a five-pointed star foot base and landing leg of claim 2, characterized in that: the base (1) comprises a base plane (17), the limiting plate (11) and the step block (13) are both located on the base plane (17), and a certain height difference is arranged between the base plane (17) and the arc surface (162).
4. The structure of claim 3, wherein the connecting structure of the five-pointed star base and the supporting leg comprises: the step block (13) is located at the front end of the limiting plate (11), and the limiting plate (11) is in a wave shape with high two sides and low middle.
5. The structure of claim 4, wherein the connecting structure of the five-pointed star base and the supporting leg comprises: the two step blocks (13) are a group, the step blocks (13) are arranged in a bilateral symmetry mode, and step cavities (14) are formed between the step blocks (13).
6. The connecting structure of a five-pointed star foot base and a supporting leg as claimed in claim 1, wherein: the supporting leg (2) comprises a supporting leg body (25), and the supporting leg body (25) is abutted to the bearing part (16).
7. The connecting structure of the five-pointed star foot base and the supporting leg as claimed in claim 6, wherein: the bearing block (23) is connected with the convex block (22) and the positioning block (24), the length of the positioning block (24) is smaller than that of the convex block (22) and the bearing block (23), and the width of the positioning block (24) is smaller than that of the convex block (22) and the bearing block (23).
8. The structure of claim 7, wherein the connecting structure of the five-pointed star base and the supporting leg comprises: the supporting block (21) comprises a supporting surface (211), a suspension surface (212) is formed at the upper end of the supporting surface (211), an abutting surface (213) is formed between the supporting surface (211) and the suspension surface (212), and the supporting surface (211) abuts against the receiving bottom surface (161).
9. The structure of claim 8, wherein the connecting structure of the five-pointed star base and the supporting leg comprises: and reinforcing ribs (26) are formed at the upper ends of the positioning block (24), the bump (22) and the bearing block (23).
10. The structure of claim 9, wherein the connecting structure of the five-pointed star base and the supporting leg comprises: the supporting side (214) of the supporting block (21) is in clearance fit with the receiving side (164) of the receiving part (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111599793.XA CN114458670A (en) | 2021-12-24 | 2021-12-24 | Connecting structure of five-star foot base and supporting legs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111599793.XA CN114458670A (en) | 2021-12-24 | 2021-12-24 | Connecting structure of five-star foot base and supporting legs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114458670A true CN114458670A (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111599793.XA Pending CN114458670A (en) | 2021-12-24 | 2021-12-24 | Connecting structure of five-star foot base and supporting legs |
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| Country | Link |
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| CN (1) | CN114458670A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9908697D0 (en) * | 1999-04-17 | 1999-06-09 | Kestrel Signs Midlands Ltd | Fastening arrangement |
| US20120080572A1 (en) * | 2010-10-05 | 2012-04-05 | Chung Ming Lin | Chair Base |
| RU122858U1 (en) * | 2012-07-04 | 2012-12-20 | Общество с ограниченной ответственностью "Дистрибьюторский центр ТАЙПИТ" | CHAIR BASIS |
| CN202858441U (en) * | 2012-08-22 | 2013-04-10 | 浙江恒林椅业股份有限公司 | Chair leg |
| CN206499205U (en) * | 2016-12-12 | 2017-09-19 | 覃叁光 | Seat foot frame |
| CN110604413A (en) * | 2019-07-23 | 2019-12-24 | 浙江誉越家具有限公司 | Detachable chair leg |
| KR20200069481A (en) * | 2018-12-07 | 2020-06-17 | 김종원 | Mounting assembly of sink |
| WO2020173007A1 (en) * | 2019-02-26 | 2020-09-03 | 安吉金泰紧固件有限公司 | Detachable five-star leg |
| CN213270982U (en) * | 2020-09-30 | 2021-05-25 | 上海科世达-华阳汽车电器有限公司 | Gear shifter |
| CN113116071A (en) * | 2021-05-14 | 2021-07-16 | 永艺家具股份有限公司 | Detachable chair leg |
-
2021
- 2021-12-24 CN CN202111599793.XA patent/CN114458670A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9908697D0 (en) * | 1999-04-17 | 1999-06-09 | Kestrel Signs Midlands Ltd | Fastening arrangement |
| US20120080572A1 (en) * | 2010-10-05 | 2012-04-05 | Chung Ming Lin | Chair Base |
| RU122858U1 (en) * | 2012-07-04 | 2012-12-20 | Общество с ограниченной ответственностью "Дистрибьюторский центр ТАЙПИТ" | CHAIR BASIS |
| CN202858441U (en) * | 2012-08-22 | 2013-04-10 | 浙江恒林椅业股份有限公司 | Chair leg |
| CN206499205U (en) * | 2016-12-12 | 2017-09-19 | 覃叁光 | Seat foot frame |
| KR20200069481A (en) * | 2018-12-07 | 2020-06-17 | 김종원 | Mounting assembly of sink |
| WO2020173007A1 (en) * | 2019-02-26 | 2020-09-03 | 安吉金泰紧固件有限公司 | Detachable five-star leg |
| CN110604413A (en) * | 2019-07-23 | 2019-12-24 | 浙江誉越家具有限公司 | Detachable chair leg |
| CN213270982U (en) * | 2020-09-30 | 2021-05-25 | 上海科世达-华阳汽车电器有限公司 | Gear shifter |
| CN113116071A (en) * | 2021-05-14 | 2021-07-16 | 永艺家具股份有限公司 | Detachable chair leg |
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