CN220706150U - A two-stage expansion external member for plywood is connected - Google Patents
A two-stage expansion external member for plywood is connected Download PDFInfo
- Publication number
- CN220706150U CN220706150U CN202322275394.9U CN202322275394U CN220706150U CN 220706150 U CN220706150 U CN 220706150U CN 202322275394 U CN202322275394 U CN 202322275394U CN 220706150 U CN220706150 U CN 220706150U
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- China
- Prior art keywords
- expansion
- connecting rod
- sleeve
- ply
- expansion portion
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- 239000011120 plywood Substances 0.000 title claims description 4
- 238000009434 installation Methods 0.000 claims abstract description 15
- 239000004576 sand Substances 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000008602 contraction Effects 0.000 description 6
- 239000002023 wood Substances 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a two-stage expansion sleeve for laminate connection, which comprises an expansion sleeve and a connecting rod, wherein one end of the expansion sleeve is a first expansion part, the other end of the expansion sleeve is a second expansion part, at least one first longitudinal notch is formed in the first expansion part and the second expansion part, the connecting rod is provided with a conical end and a connecting end, the connecting end of the connecting rod extends into the expansion sleeve, the conical end can be embedded into the first expansion part, the two-stage expansion sleeve further comprises a conical connecting sleeve and a spherical shrinkage part, the connecting sleeve is embedded into the second expansion part and is in threaded connection with the connecting end of the connecting rod, at least one raised strip corresponding to the first longitudinal notch is arranged on the outer wall of the connecting sleeve, the shrinkage part is arranged in the middle of the expansion sleeve, and a positioning medium is further arranged on the connecting rod and is positioned in the shrinkage part and can move in the shrinkage part. The utility model has simple structure, and can ensure that the connection of two boards is firm and reliable; the hidden installation is simple and quick, easy to install and disassemble, and can be repeatedly disassembled and assembled.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a two-stage expansion sleeve for laminate connection.
Background
Eccentric connectors for connecting panel furniture in the prior art generally consist of eccentric wheels, connecting rods and embedded nuts, and are also called as three-in-one connectors. The arc of the center of the circle is deviated by the torsion bent angle at the bottom of the eccentric wheel, when the cross screw groove of the eccentric wheel is rotated by the corkscrew, the connecting rod clamped in the arc can be pulled to the center of the eccentric wheel along the arc, so that the connecting rod tightens the distance between the eccentric wheel and the embedded nut, and the connection between the plates is firm.
The traditional eccentric connecting piece, because there is the space between connecting rod and the connecting plate hole that the eccentric wheel is located, after the eccentric wheel locking, the connecting plate can take place to rock, and the time has been for a long time can cause the pine to the part quantity of eccentric connecting piece is more, and the structure is complicated, increases the complexity of installation, consequently needs to improve.
Disclosure of Invention
The utility model provides a two-stage expansion sleeve for connecting laminate plates, which has a simple structure, and the first expansion part, the second expansion part and two wood plates are firmly and reliably connected; the hidden installation is very beautiful for furniture; the installation is simple and quick, the installation and the disassembly are easy, and the disassembly and the assembly can be repeated for a plurality of times.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a two-stage expansion external member for plywood is connected, including expansion sleeve and connecting rod, expansion sleeve one end is first expansion portion, and the other end is second expansion portion, there is a first longitudinal cut on first expansion portion and the second expansion portion at least, the connecting rod has toper end and link, the link of connecting rod extends to in the expansion sleeve, and the toper end can imbed in the first expansion portion, can make first expansion portion expand, still includes the adapter sleeve that is the toper and the shrink portion that is the sphere, the adapter sleeve imbeds in the second expansion portion and the link looks spiro union of connecting rod, is provided with at least one sand grip corresponding with first longitudinal cut on the outer wall of adapter sleeve, can make second expansion portion expand and the adapter sleeve is fixed in the second expansion portion and does not drop, the shrink portion sets up the middle part position at expansion sleeve, still be provided with the location medium on the connecting rod, the location medium is located the shrink portion and can move in the shrink portion.
Preferably, the expansion sleeve is of a detachable structure and is formed by mutually clamping the buckle components.
Preferably, external threads for locking the laminate are arranged on the outer surfaces of the first expansion part and the second expansion part.
Preferably, the inner holes of the first expansion part and the second expansion part are multi-step conical holes, and the multi-step conical holes are matched with the conical ends of the connecting rods and the connecting sleeves.
Preferably, the conical end of the connecting rod is further provided with a limiting medium for preventing the connecting rod from being excessively locked during installation.
Preferably, the conical end of the connecting rod is provided with a mounting hole for facilitating screwing of the connecting rod.
Preferably, the contraction part is further provided with at least two second longitudinal cuts, so that the contraction part can more easily play a role in contraction.
Compared with the prior art, the utility model has the beneficial effects that the structure is simple, and the first expansion part and the second expansion part are firmly and reliably connected with two wood boards; the hidden installation is very beautiful for furniture; the installation is simple and quick, the installation and the disassembly are easy, and the assembly and the disassembly can be repeatedly carried out for multiple times.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
fig. 2 is a schematic exploded view of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
It is noted that when a component/feature is referred to as being "disposed on" another component/feature, it can be disposed directly on the other component/feature or intervening components/features may also be present. When a component/feature is referred to as being "connected/coupled" to another component/feature, it may be directly connected/coupled to the other component/feature or intervening components/features may also be present. The term "connected/coupled" as used herein may include electrical and/or mechanical physical connections/couplings. The term "comprises/comprising" when used herein means the presence of a feature, step or component/part, but does not exclude the presence or addition of one or more other features, steps or components/parts. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely for descriptive purposes and to distinguish between similar objects, and there is no order of precedence between the two, nor should it be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Referring to fig. 1 and 2, a two-stage expansion sleeve for laminate connection includes an expansion sleeve 1 and a connecting rod 2, wherein one end of the expansion sleeve 1 is provided with a first expansion part 11, the other end is provided with a second expansion part 12, the diameter of the first expansion part 11 is larger than that of the second expansion part 12, the first expansion part 11 and the second expansion part 12 can be used as a limit in terms of direction when being installed, at least one first longitudinal notch 4 is arranged on the first expansion part 11 and the second expansion part 12, the connecting rod 2 is provided with a conical end 21 and a connecting end 22, the connecting end 22 extends into the expansion sleeve 1, and the conical end 21 can be embedded into the first expansion part 11 to expand the first expansion part 11.
The connecting sleeve 3 is embedded in the second expansion part 12 and is in threaded connection with the connecting end 22 of the connecting rod 2, at least one raised line 31 corresponding to the first longitudinal notch 4 is arranged on the outer wall of the connecting sleeve 3, the connecting sleeve 3 can not rotate along with the continuous threaded connection when the connecting rod 2 is screwed, the connecting rod 2 and the connecting sleeve 3 are mutually closed along with continuous threaded connection, the connecting sleeve 3 can expand the second expansion part 12, the connecting sleeve 3 is fixed in the second expansion part 12 and does not fall, the contraction part 13 is arranged in the middle position of the expansion sleeve 1, the connecting rod 2 is further provided with a positioning medium 23, and the positioning medium 23 is positioned in the contraction part 13 and can move in the contraction part 13, so that the connecting rod 2 can not be easily separated from the expansion sleeve 1 even in repeated disassembly.
The expansion sleeve 1 is of a detachable two-in-one structure, the expansion sleeve is formed by mutually clamping the clamping buckle components 7, external threads 6 for locking the laminate are arranged on the outer surfaces of the first expansion part 11 and the second expansion part 12, the external threads 6 are all unidirectional reverse buckling dents, the directions of the dents of the first expansion part 11 and the second expansion part 12 are opposite, the threads are all arranged according to the installation direction, and the unidirectional reverse buckling dents are arranged so that the expansion sleeve 1 cannot follow rotation and is convenient to install when being installed in the laminate for screwing. The inner bores of the first expansion part 11 and the second expansion part 12 are multi-step conical bores, which are matched with the conical end 21 of the connecting rod 2 and the connecting sleeve 3, so that the expansion effect is not point expansion but surface expansion when expanding.
The conical end 21 of the connecting rod 2 is further provided with a limiting medium 24 for preventing the connecting rod 2 from being excessively locked during installation. The conical end 24 of the connecting rod 2 is provided with a mounting hole 25 for facilitating screwing the connecting rod, the mounting hole 25 can be matched with a rod-shaped tool, the cross-sectional shape of the outer contour of the rod-shaped tool is matched with that of the mounting hole 25, preferably, the mounting hole 25 is hexagonal, the rod-shaped tool is also hexagonal, the cross-sectional shape of the rod-shaped tool is matched with that of the mounting hole 25, and the outer contour cross-sections of the mounting hole 25 and the rod-shaped tool can be designed into other polygons, star shapes, rice shapes or the like as long as the connecting rod 2 can be screwed. At least two second longitudinal cuts 5 are also provided on the constriction 13, so that the constriction 13 can more easily perform a constriction.
The utility model has simple structure, and the first expansion part 11, the second expansion part 12 and the two wood boards are firmly and reliably connected; the hidden installation is very beautiful for furniture; the installation is simple and quick, the installation and the disassembly are easy, and the assembly and the disassembly can be repeatedly carried out for multiple times.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a two-stage expansion external member for plywood is connected, includes expansion sleeve and connecting rod, expansion sleeve one end is first expansion portion, and the other end is second expansion portion, there is a first longitudinal cut in first expansion portion and the second expansion portion at least, the connecting rod has toper end and link, the link of connecting rod extends to in the expansion sleeve, and the toper end can imbed in the first expansion portion, can make first expansion portion take place the inflation, and its characterized in that still includes the adapter sleeve that is the toper and takes place the constriction part that is the sphere, the adapter sleeve imbeds in the second expansion portion and with the link looks spiro union of connecting rod, be provided with at least one sand grip corresponding with first longitudinal cut on the outer wall of adapter sleeve, can make the expansion of second expansion portion take place and the adapter sleeve is fixed and not drop in the second expansion portion, the constriction part sets up the middle part position at expansion sleeve, still be provided with the location medium on the connecting rod, the location medium is located the constriction part and can move in the constriction part.
2. The secondary expansion kit for ply-bonding according to claim 1, wherein said expansion shells are of detachable construction and are formed by snap-fit engagement with each other.
3. The secondary expansion kit for ply connection of claim 2, wherein the first expansion portion and the second expansion portion each have external threads on an outer surface thereof for locking the ply.
4. A secondary expansion kit for ply-bonding according to claim 3 and wherein said first and second expansion portions have inner bores which are multi-step tapered bores which mate with the tapered ends of the connecting rod and the connecting sleeve.
5. The secondary expansion kit for ply-bonding according to claim 4, wherein the tapered end of the connecting rod is further provided with a spacing medium for preventing the connecting rod from being excessively locked during installation.
6. The secondary expansion kit for ply-bonding according to claim 5, wherein the tapered end of the connecting rod is provided with a mounting hole for facilitating screwing of the connecting rod.
7. The secondary expansion kit for ply bonding according to claim 1, wherein said constriction is further provided with at least two second longitudinal cuts to facilitate the constriction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322275394.9U CN220706150U (en) | 2023-08-23 | 2023-08-23 | A two-stage expansion external member for plywood is connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322275394.9U CN220706150U (en) | 2023-08-23 | 2023-08-23 | A two-stage expansion external member for plywood is connected |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220706150U true CN220706150U (en) | 2024-04-02 |
Family
ID=90449010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322275394.9U Active CN220706150U (en) | 2023-08-23 | 2023-08-23 | A two-stage expansion external member for plywood is connected |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220706150U (en) |
-
2023
- 2023-08-23 CN CN202322275394.9U patent/CN220706150U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |