CN106829159A - A kind of reinforced rotational moulding casing - Google Patents
A kind of reinforced rotational moulding casing Download PDFInfo
- Publication number
- CN106829159A CN106829159A CN201710233315.4A CN201710233315A CN106829159A CN 106829159 A CN106829159 A CN 106829159A CN 201710233315 A CN201710233315 A CN 201710233315A CN 106829159 A CN106829159 A CN 106829159A
- Authority
- CN
- China
- Prior art keywords
- base plate
- hole
- rotational moulding
- fixed block
- moulding casing
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/20—External fittings
- B65D25/24—External fittings for spacing bases of containers from supporting surfaces, e.g. legs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of reinforced rotational moulding casing, including box-like body, it is embedded in the fixed block and castor of box-like body bottom, the fixed block includes base plate and is arranged at several fixed seats for being connected castor of base plate lower surface, the base plate is provided with the through hole of at least one insertion base plate upper and lower surface, and the upper surface of the base plate is provided with some projections.Simple structure of the present invention, is capable of achieving the firm connection of castor and casing main body, while improving its shock resistance.
Description
Technical field
The present invention relates to a kind of reinforced rotational moulding casing.
Background technology
People are easy to use in order to chest, it will usually install castor in the bottom of chest.Existing rotational moulding casing passes through
Built-in metal inserts (i.e. the fixed block) in mould so that metal insert is integrally formed in rotational molding technique with casing main body, most
Castor is fixedly connected with metal insert afterwards, realizes the installation of castor.
As shown in Fig. 1 the fixed block axonometric drawing of existing rotational moulding casing, as shown in Fig. 2 existing rotational moulding casing fix
The sectional view in block region, this kind of castor fixed form pole is built on the sand：
1st, because liquid plastic flow resistance is big, the thickness of bottom plastic layer H1 is excessively thin, and generally 5mm, intensity is weaker；
2nd, plastics and metal are two kinds of entirely different materials, it is impossible to perfect to bond, thus fixed block 4 is easy to and case
Phosphor bodies 3 get loose, as shown in Fig. 2 the casing main body 3 of its installation region has actually been separated into two-layer by fixed block 4, from
And the intensity in the region is greatly lowered, once fixed block is released with box-like body, easily there is breakage in the region, cause solid
Determine coming off for block, have a strong impact on the service life of casing.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of reinforced rotational moulding casing.
To achieve the above object, the present invention uses following technical scheme：
A kind of reinforced rotational moulding casing, including box-like body, the fixed block and castor of box-like body bottom are embedded in, institute
Stating fixed block includes base plate and several fixed seats for being connected castor for being arranged at base plate lower surface, and the base plate is provided with
The through hole of at least one insertion base plate upper and lower surface.
Preferably, the quantity of the through hole is one, and the through hole is located at the middle part of base plate.
Preferably, the through hole is circular hole or elliptical aperture.
Preferably, the outward flange of the base plate is the curl to the through hole central concave.
Preferably, each curl and the minimum spacing at the edge of the through hole are 4-6mm.
Preferably, the upper surface of the base plate is provided with several projections.
Preferably, the projection is equal with the quantity of fixed seat, and the projection is the part of fixed seat.
Preferably, the quantity of the fixed seat is 4, is distributed in four corners of base plate.
After adopting the above technical scheme, the present invention is compared with background technology, have the following advantages that：
1st, the base plate of fixed block is provided with through hole, and when being integrally formed, the liquid plastic of flowing is filled to through hole, because
And, there is layering in the box-like body around fixed block, remainder is completely only in the very small region of fixed block edge
Entirety, drastically increase intensity of the box-like body in fixed block installation region, improve the service life of rotational moulding casing；
2nd, via design is circular hole or elliptical aperture, and the edge designs of fixed block are the curl to through hole central concave, favorably
The flowing of liquid plastic when rotation molding, so that more liquid plastics flow to bottom base plate, greatly increases bottom base plate
Plastic thickness, realize to the preferable covered effect of fixed block, and be designed so that the midpoint at each edge of fixed block is width
Most narrow point, further prevents loosening of the fixed block in rotational moulding casing, further improves the service life of rotational moulding casing；
3rd, the upper surface of base plate is provided with projection, and raised the design with fixed seat is integrated, not only beneficial to fixed seat
Positioning, more cause to form difference in height between raised and plate upper surface during rotation molding, accelerate the flowing of liquid plastic, to increase
Plus the plastic thickness of bottom base plate.
Brief description of the drawings
Fig. 1 is the fixed block axonometric drawing of existing rotational moulding casing；
Fig. 2 is the sectional view in existing rotational moulding casing fixed block region, and cutting direction is along the center line of fixed block；
Fig. 3 is fixed block axonometric drawing of the present invention；
Fig. 4 is the another visual angle axonometric drawing of fixed block of the present invention；
Fig. 5 is the sectional view in fixed block region of the present invention, along fixed block shown in Fig. 3 " A-A " direction cutting；
Fig. 6 is the another sectional view in fixed block region of the present invention, along fixed block shown in Fig. 3 " B-B " direction cutting；
Fig. 7 is axonometric drawing of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment
As shown in Fig. 3-Fig. 7, a kind of reinforced rotational moulding casing, including box-like body 1, it is embedded in the bottom of box-like body 1
Fixed block 2 and castor 3.Wherein, fixed block 2 includes base plate 21, and four edges of base plate 21 are welded with one with interior
The fixed seat 22 of screwed hole.After the rotation molding of casing main body 1, castor 3 is fixed on fixed seat 22 by corresponding bolt assembly 5
On, realize its installation on box-like body 1.
In the present embodiment, the middle part of base plate 21 processes a through hole 211 for the upper and lower surface of insertion base plate 21, and through hole 211 can
What is set is as big as possible, can so make during rotational molding technique, and liquid plastic can faster flow to the bottom of base plate 21, increases
The plastic layer of the bottom of base plate 21.
In the present embodiment, some raised 23 are provided with the upper surface of base plate 21.These projections 23 are equipped with and fixed seat 22
The consistent internal thread hole of specification, and these internal thread holes are coaxial with internal thread hole in fixed seat 22 so that raised 23 with it is fixed
Seat 22 forms an entirety.Raised 23 are disposed in rotational molding technique so that the liquid plastic for flowing to the bottom of base plate 21 has
Individual difference in height, accelerates it to flow, so as to the plastic layer of the bottom of base plate 21 can be increased.
Certainly, raised 23 position on base plate 21 is not necessarily corresponding with the position of fixed seat 22.But this implementation
Ingenious setting that both unite two into one in example, one increased the effective length of internal thread hole, can with improve the connection of castor 3
By property, two come in the case where the area of base plate 21 is certain so that the aperture of through hole 211 reaches maximum, preferably realize the present invention
Purpose.
In the present embodiment, the through hole is set to oval poroid or circular hole, and the four edges of the base plate 21 are to logical
The curl of the central concave of hole 211, each curl is 4-6mm with the minimum spacing at the edge of the through hole, both ensure that necessary strong
Degree, reduces the gross area of base plate 21 again, so as to base plate 21 can be reduced during rotational molding technique to flowing to the liquid of the bottom of base plate 11
The obstruction of state plastics.Using equal rotational moulding condition, the thickness of H1 is about 5mm in Fig. 2, and the thickness of H2 is about 10mm in Fig. 5.
Above-mentioned fixed block 2 is embedded in mould, is integrally formed by rotational molding technique and casing main body 1.Through hole 221 and convex
Play 23 setting so that during rotational molding technique, there are more liquid plastics to flow to the bottom of base plate 21, considerably increase base plate
The plastic thickness of 21 bottoms so that castor 3 is further strengthened with the connectivity robustness of casing main body 1, while its impact resilience
Can be also obviously improved.
The above, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any ripe
Know those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (8)
1. a kind of reinforced rotational moulding casing, including box-like body, the fixed block and castor that are embedded in box-like body bottom, it is special
Levy and be：The fixed block includes base plate and is arranged at several fixed seats for being connected castor of base plate lower surface, described
Base plate is provided with the through hole of at least one insertion base plate upper and lower surface.
2. a kind of reinforced rotational moulding casing according to claim 1, it is characterised in that：The quantity of the through hole is one,
And the through hole is located at the middle part of base plate.
3. a kind of reinforced rotational moulding casing according to claim 2, it is characterised in that：The through hole is circular hole or ellipse
Hole.
4. a kind of reinforced rotational moulding casing according to claim 3, it is characterised in that：The outward flange of the base plate be to
The curl of the through hole central concave.
5. a kind of reinforced rotational moulding casing according to claim 4, it is characterised in that：Each curl and the through hole
The minimum spacing at edge is 4-6mm.
6. a kind of reinforced rotational moulding casing according to claim 1, it is characterised in that：If the upper surface of the base plate is provided with
Dry raised.
7. a kind of reinforced rotational moulding casing according to claim 6, it is characterised in that：The raised quantity with fixed seat
It is equal, and the projection is the part of fixed seat.
8. a kind of reinforced rotational moulding casing according to claim 7, it is characterised in that：The quantity of the fixed seat is 4,
It is distributed in four corners of base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233315.4A CN106829159B (en) | 2017-04-11 | 2017-04-11 | A kind of reinforced rotational moulding cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233315.4A CN106829159B (en) | 2017-04-11 | 2017-04-11 | A kind of reinforced rotational moulding cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106829159A true CN106829159A (en) | 2017-06-13 |
| CN106829159B CN106829159B (en) | 2019-05-24 |
Family
ID=59147614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710233315.4A Active CN106829159B (en) | 2017-04-11 | 2017-04-11 | A kind of reinforced rotational moulding cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106829159B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4357293A (en) * | 1979-10-22 | 1982-11-02 | Williamson Jr James H | Method for molding a mounting member in place |
| US5454477A (en) * | 1992-09-04 | 1995-10-03 | Vari-Lite, Inc. | Storage and transporatation trunk for lighting equipment |
| CN102259559A (en) * | 2010-05-27 | 2011-11-30 | 鸿富锦精密工业（深圳）有限公司 | Castor assembly |
| CN203496210U (en) * | 2013-06-26 | 2014-03-26 | 张毅 | Integrated insert |
| CN206679506U (en) * | 2017-04-11 | 2017-11-28 | 厦门迈勒滚塑有限公司 | A kind of reinforced rotational moulding casing |
-
2017
- 2017-04-11 CN CN201710233315.4A patent/CN106829159B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4357293A (en) * | 1979-10-22 | 1982-11-02 | Williamson Jr James H | Method for molding a mounting member in place |
| US5454477A (en) * | 1992-09-04 | 1995-10-03 | Vari-Lite, Inc. | Storage and transporatation trunk for lighting equipment |
| CN102259559A (en) * | 2010-05-27 | 2011-11-30 | 鸿富锦精密工业（深圳）有限公司 | Castor assembly |
| CN203496210U (en) * | 2013-06-26 | 2014-03-26 | 张毅 | Integrated insert |
| CN206679506U (en) * | 2017-04-11 | 2017-11-28 | 厦门迈勒滚塑有限公司 | A kind of reinforced rotational moulding casing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106829159B (en) | 2019-05-24 |
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