CN114593128A - Embedded nut for light corrugated sandwich board - Google Patents
Embedded nut for light corrugated sandwich board Download PDFInfo
- Publication number
- CN114593128A CN114593128A CN202210144717.8A CN202210144717A CN114593128A CN 114593128 A CN114593128 A CN 114593128A CN 202210144717 A CN202210144717 A CN 202210144717A CN 114593128 A CN114593128 A CN 114593128A
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- Prior art keywords
- hole
- eccentric wheel
- nut
- base part
- circular
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- 239000000463 material Substances 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000012792 core layer Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002344 surface layer Substances 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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/041—Releasable devices
- F16B37/042—Releasable devices locking by rotation
Abstract
The invention discloses an embedded nut for a light corrugated sandwich board, which comprises a base part, a pillar part and an eccentric wheel arranged on the pillar part. The base part comprises a groove hole and a positioning ring, the support part comprises a support part main body, a connecting through hole, a mounting hole, a material saving hole and a reinforcing edge protruding around the periphery of the outer surface of the support part. The eccentric wheel comprises a circular arc-shaped bulge outside the cross-shaped notch of the eccentric wheel main body. The eccentric wheel is fixed by the positioning circular ring of the support column part, so that the eccentric wheel is enabled to rotate in the nut and not to vertically deviate. And the joint of the connecting through hole and the column part is provided with a surrounding reinforcing edge for improving the bonding strength of the nut in the corrugated sandwich board. The embedded nut solves the problem that the existing nut cannot be used for high-strength detachable connection of the light corrugated sandwich board.
Description
Technical Field
The invention mainly relates to the technical field of hardware structures, in particular to the field of three-in-one hardware connecting pieces for connecting light corrugated sandwich boards.
Background
At present, the corrugated sandwich board has wide application prospect in the fields of furniture, wooden doors and the like due to the advantages of light weight, recoverability, high customization and the like, and has important significance for constructing a green low-carbon circulating furniture industry system. But the corrugated sandwich board has poor bearing performance due to the hole structure of the micropore small wall, and the existing nut can not be directly used for dismounting. The existing nut is difficult to realize the general performance requirement on the hardware connection strength in a corrugated core layer, and is easy to deform until a laminate falls off after being installed on a corrugated sandwich board and sheared by the hollow corrugated structure and the weight of a bearing interlayer of the sandwich board. It is therefore necessary to design a nut for corrugated sandwich panels that is embedded in the face sheet.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the special nut which is convenient for the connection of the corrugated sandwich plates, has a simple structure, is convenient to disassemble and assemble, has a firm structure and can meet the joint performance and the appearance concealment among the corrugated sandwich plates.
In order to solve the technical problems, the invention adopts the following technical scheme:
an embedded nut for connecting light corrugated sandwich board furniture is characterized by comprising a base part, a support part and an eccentric wheel arranged in the support part. The base part is plane and the profile is circular, a circular groove hole is formed in the position, far away from the pillar part, of the center of the base part, the eccentric wheel comprises an eccentric wheel main body and a circular arc-shaped bulge surrounding the outer diameter of a cross-shaped notch of the eccentric wheel, and the eccentric wheel and the circular groove hole are assembled into a whole. The base part is a cylinder with the height of 1-2mm and the diameter of 15-21.5mm, the notch of the groove hole of the base part is in a ladder shape, the groove hole is provided with a round hole with the diameter of 8mm on the surface of the base part, the recess distance is 0-1mm, the round hole with the diameter of 7-7.5mm is arranged on the surface far away from the base part, the surface far away from the base part is provided with a positioning ring, the diameter of the inner through hole is 7-7.5mm, the outer diameter is 13-14mm, and the height is 3.5-4 mm. The eccentric wheel is conveniently fixed by the positioning circular ring of the support column part and is conveniently in interference fit with the circular arc-shaped protrusion surrounded by the outer ring of the cross-shaped notch of the eccentric wheel, the interference value is 0.1-1mm, and the eccentric wheel enters the groove hole for mutual buckling through press fitting. The wall thickness of the main body of the strut part is 1-5mm, so that the strut part is ensured to be embedded into the corrugated sandwich board, and a supporting force is provided. The side wall of the support column part is provided with a circular connecting through hole, the inside of the main body of the support column part is provided with a mounting hole, and the support column part is provided with a material saving hole which is positioned on the plane where the mounting hole is positioned and is close to the outer diameter area and is used for saving materials on the premise of ensuring the integral strength, wherein the support column part is crescent, the wide part is 1.5-2mm, the narrow part is 0-1mm, and the depth is 1-5 mm. The outer surface of the pillar part surrounds the reinforcing ridge which is not closed and protruded, the cross section is triangular, the distance from the outer surface of the pillar part to the base part is 0-2mm, the outer diameter from the bottom to the top of the pillar part is 0-2mm, the height of a single tooth is 0.5-1mm, the distance is 1-2mm, and the outer diameter is 15-22 mm. The side wall of the pillar part main body is provided with a circular connecting through hole for connecting a screw rod of M6, the distance between the circular connecting through hole and the screw rod is 0.5-2mm from the base part, the distance between the circular connecting through hole and the screw rod is 1-2mm from the top surface of the pillar part, the diameter is 5-7.5mm, the lead is 5-7mm, and the circular connecting through hole is sunk in the side wall of the pillar part cylindrical main body by 0.5-1 mm. The mounting hole in the pillar part main body is a circular through hole with the diameter of 14mm and is used for mounting the eccentric wheel in the pillar part. The outer edge of the mounting through hole has a distance of 1-5mm from the columnar surface of the pillar part. The outer edge of a circular arc bulge surrounded by the outer diameter of a cross notch of the eccentric wheel main body is 0.1-0.5mm of a circular arc where the cross notch is located, and the height is 0.1-1 mm.
In conclusion, if the nut is utilized to benefit, the problem that the existing nut is difficult to stably and efficiently connect on the corrugated sandwich board is solved, the blank of paper-based furniture in the field of hardware connection is filled, and technical support is provided for realizing high-strength connection of the corrugated sandwich board.
1. The barb-shaped clamping grooves of the strut parts of the nuts in the corrugated sandwich board provide anti-pull-out static friction stability for fixing the nuts.
2. The nut effectively avoids the technical difficulty that a core layer hole structure of the corrugated sandwich board is difficult to stabilize the nut, is connected from the inside of a plate, effectively utilizes the anti-peeling strength of a surface layer board and the corrugated core layer, and ensures the tightness of the nut in the corrugated board.
3. The base part of the nut is provided with a stepped concave clamping groove which is embedded with the circular arc bulge outside the cross groove of the eccentric wheel in an interference fit manner, and the load is transferred by virtue of the friction force generated by pressing the eccentric wheel, so that the eccentric part is ensured to bear external couple moment, and the positioning disc is fixed in the support part of the nut.
Drawings
FIG. 1 is a schematic structural view of a nut of embodiment 1 of the embedded nut, which comprises an eccentric wheel;
fig. 2 is a schematic structural view of a nut according to embodiment 1 of the present embedded nut;
fig. 3 is a schematic structural view of a pillar portion included in the embedded nut embodiment 1;
fig. 4 is a schematic structural view of an eccentric wheel included in the embedded nut of embodiment 1;
FIG. 5 is a schematic view of the present insert nut of embodiment 1 connected to an existing external screw;
fig. 6 is a schematic view of the installation of the present insert nut embodiment 1 in a corrugated sandwich panel;
fig. 7 is a schematic view of the installation of the present insert nut embodiment 2 in a corrugated sandwich panel;
the reference numerals in the figures denote: 1. a base part; 11. a circular groove hole; 12. positioning the circular ring; 2. a pillar section; 21 a reinforcing rib; 22 connecting the through holes; 23. mounting holes; 24. a material saving hole; 3. an eccentric wheel; 31. a circular arc-shaped bulge; 4. an M6 screw; 5. corrugated sandwich board
Detailed Description
In order to make the technical problems to be solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention will be further described below by referring to the drawings in the new implementation and through specific embodiments.
Example 1
Fig. 1 to 6 show a first embodiment of the insert nut for corrugated sandwich board connection of the present invention, which comprises a base part (1), a post part (2) and an eccentric (3) mounted inside the post part. The center of the base part is far away from the connecting port of the support column part, a circular groove hole (11) is formed in the notch of the groove hole of the base part, the groove hole is in a step shape, a round hole with the diameter of 8mm is formed in the surface of the base part of the groove hole, the sunken distance is 0.5mm, the round hole with the diameter of 7.4mm is formed in the surface of the base part of the groove hole, a positioning ring (12) is formed in the surface of the base part of the groove hole, the diameter of an inner through hole is 7.4mm, the outer diameter is 14mm, and the height is 3.9 mm. The eccentric wheel is fixed by a positioning ring of the support part conveniently, a reinforcing edge (21) which surrounds the non-closed protrusion is arranged on the outer surface of the support part, the height of each tooth is 0.9mm, the distance between every two teeth is 1.5mm, and the outer diameter of each tooth is 20.8 mm. The side wall of the pillar part main body is provided with a connecting through hole (22) which has the diameter of 7mm and the depth of 4.3mm and is used for connecting an M6 screw. The side wall of the pillar part main body is provided with a circular connecting through hole (22) with the diameter of 14mm, and the diameter of the circular through hole is 7 mm. The lateral wall thickness of pillar portion main part is close to connect through-hole (22) thickest department 4mm, keeps away from connect through-hole (22) department 1mm, for pillar portion embedding flute battenboard inside provides the holding power, and the pillar portion has province material hole (24) near the external diameter region for save materials under the prerequisite of guaranteeing bulk strength, the crescent moon shape, wide department 1.9mm, narrow department 0.7mm, dark 4 mm. The column part main body comprises an eccentric wheel main body (30) and a circular arc bulge (31) in a cross-shaped notch of the eccentric wheel, wherein the circular arc is expanded by 0.2mm and the height is 0.5 mm. The eccentric wheel and the circular groove hole are assembled into a whole. The corrugated sandwich board (5) is composed of a top board, a bottom board and a corrugated paper core layer laminated with the vertical board. When the eccentric wheel is specifically implemented, the support part (2) and the eccentric wheel (30) are assembled, the eccentric wheel is inserted into the support part mounting hole (23), and the circular arc-shaped bulge surrounded by the outer diameter of the cross-shaped notch of the eccentric wheel is in interference fit with the circular groove hole (11) of the base part by a difference value of 0.5 mm. The circular arc-shaped bulge (31) of the cross-shaped notch of the eccentric wheel is clamped and fixed, and the eccentric wheel is fixed at the position of the positioning ring (12) of the base part to form a complete connecting piece. And embedding the support column part (2) into a mounting hole drilled on a laminate of the corrugated sandwich board. And is connected with an external equipment connecting rod (4) through a connecting through hole (22) of the support part, a screwdriver of tool equipment is inserted into the cross-shaped notch of the eccentric wheel, and the screwdriver is rotated to drive the eccentric wheel (30) to rotate so as to clamp the screw (4) of the tool equipment M6 in the connecting through hole (22). Until the head of the connecting rod is locked in the pillar part (2), the nut is fixedly embedded in the corrugated sandwich board.
Example 2
Figure 7 shows a second embodiment of the embedded nut for corrugated sandwich board connection of the present invention, in which one end of the nut is the same as the first embodiment except that the base part is extended by an arc of 47.5mm and has a hollow cylinder with a height of 9mm at 1mm from the end, an outer diameter of 12.5mm and a thickness of 1.5mm, constituting a reinforcing base (6). Four ring teeth are arranged outside the column body in a surrounding mode, the tooth height is 0.5mm, the tooth space is 1.2mm, and the outer diameter is 15 mm. Two mounting holes need to be drilled in the corrugated sandwich board (5) in the mounting process, the front hole is used for embedding the support column part of the nut, and the rear hole is used for fixing the hollow column body to ensure that the nut is fixedly connected with the corrugated sandwich board. The remaining mounting techniques require the same requirements as in example 1.
Claims (6)
1. An embedded nut for connecting light corrugated sandwich board furniture is characterized by comprising a base part (1), a support part (2) and an eccentric wheel (3) arranged in the support part. The base part (1) is a plane and the outer contour is circular, a circular groove hole (11) is formed in the surface of the base part, and a positioning circular ring (12) is arranged on the base part. The outer surface of the pillar part (2) is provided with a reinforcing rib (21) which surrounds the non-closed protrusion, the side wall of the pillar part main body is provided with a connecting through hole (22), and the interior of the pillar part main body is provided with a mounting hole (23) and a material saving hole (24). The eccentric wheel comprises an eccentric wheel main body (30) and an arc-shaped bulge (31) surrounding the outer ring of the cross-shaped notch of the eccentric wheel, and the eccentric wheel and the mounting hole are assembled into a detachable whole.
2. The embedded nut for connecting light corrugated sandwich board furniture as claimed in claim 1, characterized in that the base part (1) is a cylinder with thickness of 1-2mm and diameter of 15-21.5mm, the center of the circular groove hole (11) of the base part is located at a position away from the connecting direction and deviated from the central axis of the support part (2) by 1-3mm, the notches are arranged in a ladder shape, the groove hole has a circular hole with diameter of 8mm on the surface of the base part, the recess distance is 0-1mm, and the circular hole with diameter of 7-7.5mm on the surface away from the base part is convenient for interference fit with the circular arc protrusion (31) surrounded by the outer ring of the cross-shaped notch of the eccentric wheel, the interference value is 0.1-1mm, and the circular groove hole (11) is mutually buckled by pressing the eccentric wheel. The surface far away from the base part is provided with a positioning ring (12), the diameter of the inner through hole is 7-7.5mm, the outer diameter is 13-14mm, and the height is 3.5-4 mm. The function of the nut is to ensure that the eccentric wheel rotates in the nut and is not vertically offset.
3. The insert nut for lightweight corrugated sandwich panel furniture coupling as claimed in claim 1, wherein the main body has a wall thickness of 1-5mm, ensuring that the post portion is embedded inside the corrugated sandwich panel, providing a supporting force. The section of a circumferential non-closed surrounding protrusion reinforcing rib (21) on the outer surface of the strut part is triangular, the distance from the outer surface of the strut part to the base part (1) is 0-2mm, the distance from the outer surface of the strut part to the top surface of the strut part is 0-2mm, the outer diameters of the strut part from the bottom to the top are uniform, the height of a single tooth is 0.5-1mm, the distance from the single tooth to the top is 1-2mm, and the outer diameter of the single tooth is 15-22 mm. The support post part is provided with a material saving hole (24) in the area close to the outer diameter of the plane where the mounting hole (23) is located, so that the material is saved on the premise of ensuring the integral strength, and the support post part is crescent-shaped, 1.5-2mm in wide part, 0-1mm in narrow part and 1-5mm in depth.
4. The insert nut for lightweight corrugated sandwich panel furniture joint as claimed in claim 1, wherein the side wall of the post portion has a connecting through hole (22) for connecting a screw of M6, which is spaced 0.5-2mm from the base portion (1), 1-2mm from the top surface of the post portion, 5-7.5mm in diameter, 5-7mm in lead, and 0.5-1mm from the side wall of the cylindrical body of the invaginated post portion.
5. The drop nut for lightweight corrugated sandwich panel furniture coupling as claimed in claim 1 wherein the mounting hole (23) inside the post body is a circular through hole of 7mm diameter for securing the eccentric (3) in the post internally rotating eccentric (3). The outer edge of the mounting through hole has a distance of 1-5mm from the columnar surface of the pillar part.
6. The insert nut for lightweight corrugated sandwich panel furniture connection as claimed in claim 1, wherein the circular arc protrusion (31) surrounded by the outer diameter of the eccentric cross-shaped notch of the eccentric body (30) is 0.1-0.5mm in height and 0.1-1mm in outer edge of the circular arc in which the cross-shaped notch is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210144717.8A CN114593128A (en) | 2022-02-18 | 2022-02-18 | Embedded nut for light corrugated sandwich board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210144717.8A CN114593128A (en) | 2022-02-18 | 2022-02-18 | Embedded nut for light corrugated sandwich board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114593128A true CN114593128A (en) | 2022-06-07 |
Family
ID=81806114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210144717.8A Pending CN114593128A (en) | 2022-02-18 | 2022-02-18 | Embedded nut for light corrugated sandwich board |
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| Country | Link |
|---|---|
| CN (1) | CN114593128A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062775A (en) * | 2007-09-07 | 2009-03-26 | Akihiro Yamamoto | Method of connecting and fixing wooden building members to each other |
| CN107165907A (en) * | 2017-05-05 | 2017-09-15 | 中南林业科技大学 | Special hardware-joint for hollow honeycomb board furniture |
| US20180023612A1 (en) * | 2016-07-20 | 2018-01-25 | Newfrey Llc | Blind nut, a blind nut assembly and mounting structure thereof |
| CN113048130A (en) * | 2021-04-20 | 2021-06-29 | 中南林业科技大学 | Double-thread embedded screw for light corrugated sandwich board |
| CN213940201U (en) * | 2020-11-30 | 2021-08-13 | 嘉善嘉瑞精密五金科技股份有限公司 | Three-in-one laminated plate support with high strength and convenience |
-
2022
- 2022-02-18 CN CN202210144717.8A patent/CN114593128A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062775A (en) * | 2007-09-07 | 2009-03-26 | Akihiro Yamamoto | Method of connecting and fixing wooden building members to each other |
| US20180023612A1 (en) * | 2016-07-20 | 2018-01-25 | Newfrey Llc | Blind nut, a blind nut assembly and mounting structure thereof |
| CN107165907A (en) * | 2017-05-05 | 2017-09-15 | 中南林业科技大学 | Special hardware-joint for hollow honeycomb board furniture |
| CN213940201U (en) * | 2020-11-30 | 2021-08-13 | 嘉善嘉瑞精密五金科技股份有限公司 | Three-in-one laminated plate support with high strength and convenience |
| CN113048130A (en) * | 2021-04-20 | 2021-06-29 | 中南林业科技大学 | Double-thread embedded screw for light corrugated sandwich board |
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