CN212825935U - Prevent plywood that ftractures - Google Patents
Prevent plywood that ftractures Download PDFInfo
- Publication number
- CN212825935U CN212825935U CN202021152231.1U CN202021152231U CN212825935U CN 212825935 U CN212825935 U CN 212825935U CN 202021152231 U CN202021152231 U CN 202021152231U CN 212825935 U CN212825935 U CN 212825935U
- Authority
- CN
- China
- Prior art keywords
- groove
- angle
- trapezoidal groove
- layer plate
- upper right
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011120 plywood Substances 0.000 title claims abstract description 21
- 238000005336 cracking Methods 0.000 claims abstract description 6
- 229920001821 foam rubber Polymers 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 13
- 238000010008 shearing Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The utility model belongs to the technical field of panel processing, concretely relates to cracking-proof plywood, which comprises an upper layer plate, a middle layer plate and a lower layer plate which are arranged in sequence from top to bottom, wherein an upper right-angled trapezoidal groove is arranged in the concave surface of the upper surface of the middle layer plate, a lower right-angled trapezoidal groove which is staggered with the upper right-angled trapezoidal groove is arranged on the lower surface of the middle layer plate, and the inclined plane of the upper right-angled trapezoidal groove is parallel to and adjacent to the inclined plane of the lower right-angled trapezoidal groove; the inclined plane of the upper right-angle trapezoidal groove and the inclined plane of the lower right-angle trapezoidal groove are both provided with a clamping groove in an inwards concave manner; the upper layer plate is provided with an upper right-angle trapezoid protrusion matched with the upper right-angle trapezoid groove, and the lower layer plate is provided with a lower right-angle trapezoid protrusion matched with the lower right-angle trapezoid groove; and the inclined planes of the upper right-angle trapezoid protrusion and the lower right-angle trapezoid protrusion are provided with clamping strips embedded into the clamping grooves. The utility model discloses have good cracking resistance ability.
Description
Technical Field
The utility model relates to a panel processing technology field, concretely relates to prevent plywood that ftractures.
Background
The plywood is a three-layer or multi-layer plate material formed by rotary cutting wood sections into single boards or slicing wood squares into thin wood and then gluing the thin wood with an adhesive.
However, the existing plywood has poor pressure resistance, is easy to crack when stressed, and simultaneously, after long-time use, the water in the plywood is lost and is also easy to crack, so that improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prevent plywood that ftractures to improve the prevent cracking ability of plywood, promote the life of plywood.
In order to solve the technical problem, the utility model provides an anti-cracking plywood, including top plate, well plywood and the lower plywood that from the top down set gradually, the upper surface indent of well plywood is provided with the right trapezoid groove, the lower surface of well plywood is provided with the lower right trapezoid groove that misplaces with last right trapezoid groove to
The inclined plane of the upper right-angle trapezoidal groove is parallel to and adjacent to the inclined plane of the lower right-angle trapezoidal groove;
the inclined plane of the upper right-angle trapezoidal groove and the inclined plane of the lower right-angle trapezoidal groove are both provided with a clamping groove in an inwards concave manner;
the upper layer plate is provided with an upper right-angle trapezoid protrusion matched with the upper right-angle trapezoid groove, and the lower layer plate is provided with a lower right-angle trapezoid protrusion matched with the lower right-angle trapezoid groove; and is
The inclined planes of the upper right-angle trapezoid protrusion and the lower right-angle trapezoid protrusion are provided with clamping strips embedded into the clamping grooves.
The longitudinal section of the clamping groove is semicircular.
Wherein, the clamping groove is filled with a foam adhesive layer, and
the thickness of the foam rubber layer is one third of the depth of the clamping groove.
And waterproof glue layers are coated on the peripheries of the upper layer plate and the lower layer plate.
The utility model has the advantages that:
1. the upper right-angled trapezoidal groove is formed in the upper surface of the middle plate, the lower right-angled trapezoidal groove staggered with the upper right-angled trapezoidal groove is formed in the surface of the middle plate, the inclined surface of the right-angled trapezoidal groove is utilized to prevent the upper plate or the lower plate from being stressed and cracked in the transverse shearing direction, and the performance of preventing the upper plate or the lower plate from being cracked due to transverse shearing force is improved;
2. through draw-in groove and the card strip that sets up on the inclined plane, prevent the fracture of panel vertical direction atress and two directions of horizontal atress to through filling the foam glue film between draw-in groove and card strip, have certain softness and elasticity characteristics, slow down the pressure of all directions, keep the stability after the pressurized.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a front view of the plywood of the present invention;
fig. 2 is a perspective view of the middle laminate.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and 2, the present embodiment 1 provides a cracking-proof plywood, which includes an upper board 1, a middle board 2 and a lower board 3, which are sequentially arranged from top to bottom, wherein an upper rectangular trapezoid groove 21 is concavely arranged on an upper surface of the middle board 2, a lower rectangular trapezoid groove 22 which is staggered from the upper rectangular trapezoid groove 21 is arranged on a lower surface of the middle board 2, an inclined surface of the upper rectangular trapezoid groove 21 is parallel to and adjacent to an inclined surface of the lower rectangular trapezoid groove 22, the upper board 1 is provided with an upper rectangular trapezoid protrusion 11 which is matched with the upper rectangular trapezoid groove 21, the lower board 3 is provided with a lower rectangular trapezoid protrusion 31 which is matched with the lower rectangular trapezoid groove 22, and the inclined surface of the rectangular trapezoid groove is used for preventing the transverse shearing direction of the upper board 1 or the lower board 2 from cracking, and improving the performance of cracking due to the transverse shearing force;
the inclined surface of the upper right-angle trapezoidal groove 21 and the inclined surface of the lower right-angle trapezoidal groove 22 are both provided with a clamping groove 211 in a concave manner; go up right trapezoid protrusion 11 and the protruding 31 inclined plane of right trapezoid and all be provided with the card strip 111 of embedding in the draw-in groove 211, through draw-in groove 211 and the card strip 111 that sets up on the inclined plane, prevent the fracture of two directions of panel vertical direction atress and horizontal atress, improve the atress of panel all directions, further promote preventing of panel ability of ftracturing.
The longitudinal section of the clamping groove 211 is semicircular, and the semicircular structure enables the connection strength of the clamping surface to be good.
The clamping groove 211 is filled with a foam rubber layer, the thickness of the foam rubber layer is one third of the depth of the clamping groove 211, the foam rubber layer is filled between the clamping groove 211 and the clamping strip 111, the foam rubber layer has certain soft and elastic characteristics, pressure in all directions is relieved, and stability after compression is kept.
Waterproof glue layers are coated on the peripheries of the upper plate 1 and the lower plate 3, so that the end faces of the spliced plates are prevented from being damped, and the internal structural strength is reduced.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The anti-cracking plywood comprises an upper layer board, a middle layer board and a lower layer board which are arranged from top to bottom in sequence, and is characterized in that the upper layer board, the middle layer board and the lower layer board are arranged in sequence;
the upper surface of the middle layer plate is concavely provided with an upper right-angled trapezoidal groove, the lower surface of the middle layer plate is provided with a lower right-angled trapezoidal groove staggered with the upper right-angled trapezoidal groove, and
the inclined plane of the upper right-angle trapezoidal groove is parallel to and adjacent to the inclined plane of the lower right-angle trapezoidal groove;
the inclined plane of the upper right-angle trapezoidal groove and the inclined plane of the lower right-angle trapezoidal groove are both provided with a clamping groove in an inwards concave manner;
the upper layer plate is provided with an upper right-angle trapezoid protrusion matched with the upper right-angle trapezoid groove, and the lower layer plate is provided with a lower right-angle trapezoid protrusion matched with the lower right-angle trapezoid groove; and is
The inclined planes of the upper right-angle trapezoid protrusion and the lower right-angle trapezoid protrusion are provided with clamping strips embedded into the clamping grooves.
2. The split-resistant plywood of claim 1, wherein;
the longitudinal section of the clamping groove is semicircular.
3. The split-resistant plywood of claim 1, wherein;
the clamping groove is filled with a foam glue layer, and
the thickness of the foam rubber layer is one third of the depth of the clamping groove.
4. The split-resistant plywood of claim 1, wherein;
and waterproof glue layers are coated on the peripheries of the upper layer plate and the lower layer plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021152231.1U CN212825935U (en) | 2020-06-19 | 2020-06-19 | Prevent plywood that ftractures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021152231.1U CN212825935U (en) | 2020-06-19 | 2020-06-19 | Prevent plywood that ftractures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212825935U true CN212825935U (en) | 2021-03-30 |
Family
ID=75175377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021152231.1U Expired - Fee Related CN212825935U (en) | 2020-06-19 | 2020-06-19 | Prevent plywood that ftractures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212825935U (en) |
-
2020
- 2020-06-19 CN CN202021152231.1U patent/CN212825935U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230418 Address after: No. 968 Danshui Hong Road, Cixi Binhai Economic Development Zone, Ningbo City, Zhejiang Province, 315000 Patentee after: Ningbo Chuangcheng Plate Co.,Ltd. Address before: 223600 Suqian Town, Shuyang County, Jiangsu Province Patentee before: Shuyang Chenghe wood products factory |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |