CN203943609U - A kind of paper towel box - Google Patents

A kind of paper towel box Download PDF

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Publication number
CN203943609U
CN203943609U CN201420403337.2U CN201420403337U CN203943609U CN 203943609 U CN203943609 U CN 203943609U CN 201420403337 U CN201420403337 U CN 201420403337U CN 203943609 U CN203943609 U CN 203943609U
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CN
China
Prior art keywords
lifter plate
box body
pushing block
interconnecting piece
paper towel
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.)
Withdrawn - After Issue
Application number
CN201420403337.2U
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Chinese (zh)
Inventor
陈庆强
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Individual
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Individual
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Publication date
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Priority to CN201420403337.2U priority Critical patent/CN203943609U/en
Application granted granted Critical
Publication of CN203943609U publication Critical patent/CN203943609U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of paper towel box, especially a kind of paper towel box that is applicable to stacked paper towels.A kind of paper towel box of the utility model, comprise that box body, described box body bottom are uncovered, in described box body, be provided with lifter plate, at described box body lateral wall, be provided with pushing block, location tooth bar, gathering sill, described pushing block can move up and down along gathering sill, by locating fixedly pushing block position of tooth bar, lifter plate is by pushing block support limit.The utility model paper towel box consists of the positioning track that moves up and down of pushing block gathering sill, location tooth bar, by the height of pushing block being regulated to change paper towel box inner space height, when the utility model can effectively prevent that paper handkerchief is few, paper handkerchief falls back in box, paper extraction is convenient, also cocoa repeatedly reuses, and simple in structure.

Description

A kind of paper towel box
Technical field
The utility model relates to a kind of paper towel box, especially a kind of paper towel box that is applicable to stacked paper towels.
Background technology
In the modern life, paper handkerchief conveniently extracts because of it, clean hygiene, and be widely used in family and work, paper towel box used mostly is directly and paper handkerchief tie-in sale at present, its material is many to be made by papery and plastics, and this class paper towel box is disposable use, cannot reuse, therefore cause larger waste, meanwhile, this class paper towel box is thinner, flat the collapsing of paper towel box meeting when paper handkerchief is not enough, neither extraction attractive in appearance is also inconvenient.Also there is in the market the plastics paper towel box that can repeatedly reuse, but this class paper towel box in use can be along with the minimizing of paper handkerchief, and paper handkerchief can fall back in paper towel box, because paper towel box is higher, when next paper handkerchief, even if stretching into, finger in paper towel box, is also inconvenient to extract paper handkerchief.
Utility model content
Technical problem to be solved in the utility model is that paper towel box can not reuse, paper towel box that thin paper or thin plastic sheeting are made into is flat collapse and paper handkerchief to fall the paper extraction that paper towel box etc. causes after rise inconvenient.
The utility model provides a kind of paper towel box to address the above problem, a kind of paper towel box, comprise that box body, described box body bottom are uncovered, in described box body, be provided with lifter plate, at described box body lateral wall, be provided with pushing block, location tooth bar, gathering sill, described pushing block can move up and down along gathering sill, and by locating fixedly pushing block position of tooth bar, lifter plate is by pushing block support limit.
Further, described pushing block comprises guide pad, location hook, spring, is provided with for supporting the lifter plate bracket of lifter plate in guide pad inner side, is provided with the bracing frame of supporting and location hook in guide pad outside, described location hook is installed on bracing frame, and described spring fitting is between location hook and guide pad.
Further, described pushing block comprises guide pad, in guide pad inner side, is provided with for supporting the lifter plate bracket of lifter plate, in guide pad both sides, is respectively equipped with elasticity location hook, and described elasticity location hook outer end elastic compression joint is on the tooth bar of location.
Further, described pushing block comprises locating piece and interconnecting piece, and described locating piece is positioned at box body outside, and described interconnecting piece is positioned at box body, and one side of interconnecting piece is connected with lifter plate, and the another side of interconnecting piece is fixedly connected with locating piece.
Further, described box body outside is provided with tooth bar, and tooth bar both sides are provided with gathering sill, and described locating piece inner side is provided with resilient barb, and locating piece is arranged on tooth bar, and locating piece is installed and is connected in gathering sill with interconnecting piece.
Further, described box body outside is provided with groove, the sidewall of groove is provided with tooth bar, the both sides of described groove are provided with gathering sill, described locating piece inner side is provided with protruding elastic ring, locating piece is arranged on groove, and elastic ring snaps in groove, and locating piece is installed and is connected in gathering sill with interconnecting piece.
Further, described box body is overall structure, at box body top, be provided with paper drawing mouth, the junction of described interconnecting piece and lifter plate is provided with connecting axle, interconnecting piece is connected with the lifter plate that is provided with the collar by connecting axle, and one section of described connecting axle is cylindrical, and one section is square column type, the circular hole of one section of the collar endoporus of described lifter plate for adapting with aforementioned cylinder, one section of square opening for adapting with aforementioned square column.
Further, described box body is overall structure, at box body top, be provided with paper drawing mouth, the junction of described interconnecting piece and lifter plate is provided with connecting axle, interconnecting piece is connected with the lifter plate that is provided with the collar by connecting axle, described connecting axle is roller gear, and the collar endoporus on lifter plate is provided with the internal tooth adapting with aforementioned roller gear, and the described collar is being axially arranged with the open slot of perforation.
Further, described box body is overall structure, at box body top, is provided with paper drawing mouth, and described interconnecting piece rear portion is provided with a straight-bar, straight-bar and interconnecting piece chain connection, and straight-bar can rotate around tie point in the plane parallel with lifter plate.
Further, described box body is overall structure, at box body top, be provided with paper drawing mouth, described lifter plate bottom surface is provided with shifting part, shifting part is provided with sliding bar, described sliding bar is arranged in the sliding tray of lifter plate bottom, and mobile shifting part makes the front end of shifting part push against interconnecting piece or departs from interconnecting piece.
Paper towel box described in the utility model is at inner added lifting plate, at lower box body lateral wall, set up location tooth bar, pushing block and pushing block gathering sill, pushing block moves up and down along location tooth bar, pass through gathering sill, make the pushing block supporting lifter plate of lateral wall, the height of lifter plate changes with the change in location of pushing block, therefore can regulate at any time the height of lifter plate, when preventing that paper handkerchief is few, paper handkerchief falls back in box, simultaneously, paper towel box can flatly not collapsed, and paper extraction is convenient, goes back cocoa and repeatedly reuses, easy to operate, simple in structure.
Accompanying drawing explanation
Fig. 1 is the cutaway view of embodiment 1;
Fig. 2 is the lifter plate structural representation of embodiment 1;
Fig. 3 is the pushing block structural representation of embodiment 1;
Fig. 4 is the cutaway view of embodiment 2;
Fig. 5 is embodiment 2 lifter plate structural representations;
Fig. 6 is embodiment 2 pushing block structural representations;
Fig. 7 is embodiment 2 partial sectional views;
Fig. 8 is the pushing block structural representation of two location tooth bar;
Fig. 9 is the pushing block structural representation of one-sided pushing block gathering sill;
Figure 10 is the pushing block structural representation of one-sided stationary rack;
Figure 11 is the pushing block structural representation of one-sided stationary rack;
Figure 12 is the structural representation of embodiment 3;
Figure 13 is the explosive view of embodiment 3;
Figure 14 is embodiment 3 interconnecting piece structural representations;
Figure 15 is the rearview of embodiment 3 locating pieces;
Figure 16 is the explosive view of embodiment 4;
Figure 17 is embodiment 4 positioning block structure schematic diagrames;
Figure 18 is embodiment 4 interconnecting piece structural representations
Figure 19 is embodiment 4 interconnecting pieces and lifter plate connection diagram;
Figure 20 is embodiment 4 bindiny mechanisms and lifter plate connection diagram;
Figure 21 is embodiment 4 interconnecting pieces and lifter plate connection diagram;
Figure 22 is embodiment 4 interconnecting pieces and lifter plate connection diagram.
The specific embodiment
Embodiment 1
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, a kind of paper towel box of the utility model, comprise box body and lifter plate 3, box body bottom is provided with uncovered, by upper cover 1, lower box body 2, formed, lifter plate 3 is arranged in lower box body 2, two madial walls of lower box body 2 are provided with pushing block 4, location tooth bar 21, pushing block gathering sill 22, gathering sill 24, gathering sill 24 is arranged in pushing block gathering sill 22, pushing block 4 moves up and down along pushing block gathering sill 22 and gathering sill 24, by locating fixedly pushing block 4 positions of tooth bar 21, lifter plate 3 is positioned in lower box body 2, by pushing block 4 support limit.
Pushing block 4 comprises guide pad 42, location hook 43, spring 45, guide pad 42 is installed in pushing block gathering sill 22, and guide pad 42 bottoms are provided with lifter plate bracket 41, bracing frame 44, and lifter plate bracket 41 stretches into lower box body 2 inside by gathering sill 24, supporting elevation plate 3, location hook 43 is installed on bracing frame 44, and location hook 43 is chain connection with bracing frame 44, and spring 45 is installed between location hook 43 and guide pad 42.
Location tooth bar 21 is arranged on lower box body 2 outer side wall surface, can be formed by outer side wall surface processing casting, or have the rear fixed installation of other tooth bar processing, and the present embodiment location tooth bar 21 is arranged on lower box body 2 outer side wall surface of pushing block gathering sill 22 both sides.
Lower box body 2 inwalls are also provided with 4 lifter plate gathering sills 23, are also provided with corresponding 4 projections 31 on the lifter plate 3 matching with it.
In the utility model, paper handkerchief is placed on the lifter plate 3 of lower box body 2, use along with paper handkerchief, in paper handkerchief, the distance of upper cover 1 becomes large, paper handkerchief easily falls lower box body 3 after rise, at this moment we only need to externally press location hook 43 ends on pushing block 4, spring-compressed, 43 front end of location hook departs from location tooth bar 21, while pushing away location hook 43 or pushing block 4 on us, can promote lifter plate 3 up moves along lifter plate gathering sill, lifter plate bracket 41 supporting lifter plates 3 up move, when its position is appropriate, stop promoting location hook 43 or pushing block 4, loosen location hook simultaneously, make its spring 45 returns, location hook 43 hooks location tooth bar 21, now, pushing block 4 can not fall, lifter plate 3 is also just fixedly in the proper place.The position of lifter plate 3 raises, and can effectively prevent that the paper handkerchief in paper towel box from falling after rise.
Embodiment 2
As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, the difference of the present embodiment and embodiment 1 is pushing block 4 structures, lower box body 2 structure settings.Pushing block 4 in the present embodiment comprises guide pad 42, catch means 46, and guide pad 42 is provided with lifter plate bracket 41, elasticity location hook 43.Elasticity location hook 43 is 7 fonts, and 2 elasticity location hooks 43 are back to being arranged at guide pad 42 lower ends, and the dorsal part of elasticity location hook 43 is respectively provided with 2 projections 464, and elasticity location hook 43 elastic compression joints are on the tooth bar 21 of location.In catch means 46, be provided with pushing block 461, guide post 462, stop lock dog 463, guide post 462 is installed in the gathering sill 421 of guide pad 42 both sides, and guide post 461 ends are provided with projection 465.In the present embodiment, a lower box body 2 wherein lateral wall is provided with location tooth bar 21, pushing block gathering sill 22, gathering sill 24, and location tooth bar 21 is arranged on the both sides sidewall of pushing block gathering sill 22.Lower box body is provided with 2 lifter plate gathering sills 23 at another madial wall,, a lifter plate 3 wherein side is provided with 2 projections.
In the present embodiment, from outside, promote catch means 46 or promote guide pad 42, only lock dog 46 in catch means is moved between the projection 464 at location hook 43 back sides, the projection 465 of guide post 462 ends is blocked guide pad 42, catch means 46 can not fall, lifter plate bracket 41 on guide pad 42 just can support lifter plate 3 and rise along lifter plate gathering sill, when lifter plate 3 position suitable, can stop promoting catch means 46 or promote guide pad 42, now the location hook 43 of guide pad 42 ends hooks location tooth bar 21, depress locking device 46 more afterwards, only lock dog 463 snaps between the projection 464 at location hook 43 back sides, now guide pad 42 is fixed on this position completely, can not move down by lifter plate 3 because paper handkerchief is overweight.
In embodiment 1 of the present utility model, also the location tooth bar 21 of lower box body 2 lateral walls can be arranged to the two side of pushing block gathering sill 22 as shown in Figure 9.
The both sides of only having described pushing block gathering sill 22 in the utility model are equipped with the embodiment of location tooth bar 21, as shown in Figure 10, Figure 11, and can be only at the one-sided location tooth bar 21 that is provided with of pushing block gathering sill 22 in embodiment 1 and embodiment 2.
Embodiment 3
As shown in Figure 12, Figure 13, Figure 14, Figure 15, in the present embodiment, a kind of paper towel box, comprises box body, lifter plate 3, described box body bottom is uncovered, it comprises upper cover 1, lower box body 2, and lower box body 2 lateral walls are provided with pushing block 4, location tooth bar 21, guide groove 24, and pushing block 4 can move up and down along guide groove 24, guide groove 24 is positioned at the both sides of location tooth bar 21, pushing block 4 is arranged on the tooth bar 21 of location, and by locating fixedly pushing block 4 positions of tooth bar 21, lifter plate 3 is by pushing block 4 support limit.
Pushing block 4 comprises locating piece 41, interconnecting piece 42, and described locating piece 41 both sides are provided with through hole 43, and centre is provided with the first barb 44, and described the first barb 44 front ends are provided with projection 441; Interconnecting piece 42 front part sides are provided with two cylinders 421, cylinder 421 is with the second barb 422 and along being provided with groove 423 in diametric(al), interconnecting piece 42 is connected with locating piece 41 by cylinder 421, and interconnecting piece 42 rear portions are fixedly connected with the lifter plate 3 that is provided with the collar by connecting axle 423.
In the present embodiment, stirring up and down projection 441 can make to move or separating tooth on the first barb 44, mobile locating piece 41, the interconnecting pieces 42 etc. of driving of the first barb 44 are mobile, lifter plate 3 height change with the change in location of projection 441, in the present embodiment, can stir up and down the height that projection 441 can change lifter plate 3 by shirtsleeve operation, simple operation, simple in structure.
Embodiment 4
In Figure 16, Figure 17, Figure 18, the present embodiment, a kind of paper towel box, comprises box body 1, lifter plate 3, and described box opening, is provided with paper drawing mouth at its top down, and box body 1 lateral wall is provided with pushing block 4, guide groove 24, groove 25.Pushing block 4 can move up and down along guide groove 24, and guide groove 24 is positioned at the both sides of groove 25, and tooth bar 21 is arranged on the sidewall of groove 25.Pushing block 4 is arranged on the tooth bar 21 of location, and by locating fixedly pushing block 4 positions of tooth bar 21, lifter plate 3 is by pushing block 4 support limit.
Pushing block 4 comprises locating piece 41, interconnecting piece 42, described locating piece 41 both sides are provided with through hole 43, are recessed into cambered surface in centre, and inner side is provided with elliptoid elastic ring 44, elastic ring 44 forms with protruding arc spring by 2, and arc spring two ends are fixed on locating piece 41; Interconnecting piece 42 front part sides are provided with two cylinders 421, cylinder 421 is with barb 422 and along being provided with groove 423 in diametric(al), interconnecting piece 42 is connected with locating piece 41 by cylinder 421, and interconnecting piece 42 rear portions are fixedly connected with the lifter plate 3 that is provided with the collar 31 by connecting axle 423.
In the present embodiment, elastic ring 44 is arranged in groove 25, projection on elastic ring 44, snap in the location tooth bar 21 of groove 25 sidewalls, elastic ring 44 is clamped, also with regard to pushing block 4, clamped, by external force, promote locating piece 41, elastic reaction due to elastic ring 44, the projection of elastic ring 44 is toward middle retraction, locating piece 41 just can up or move down, the movement of locating piece 41 changes the position of lifter plate 3, lifter plate 3 height change with the change in location of pushing block 4 or locating piece 41, in the present embodiment, can promote up and down the height that locating piece 41 can change lifter plate 3 by shirtsleeve operation, simple operation, simple in structure.
In the present embodiment, lifter plate 3 need to down overturn, and just can pack paper handkerchief into, needs a fixedly structure for lifter plate 3 after upset.
As shown in figure 18, one and the hinged straight-bar 45 of interconnecting piece 42 can be set at the rear portion of interconnecting piece 42 in the present embodiment, straight-bar 45 can rotate around tie point at horizontal plane, pack into after paper handkerchief, lifter plate 3 is turned into level angle, retell straight-bar 45 and rotate to below lifter plate 3, straight-bar 45 just can supporting elevation plate 3 maintenance levels.
As shown in figure 19, interconnecting piece 42 is provided with connecting axle 423 with the junction of lifter plate 3, interconnecting piece 42 is connected with the lifter plate 3 that is provided with the collar 31 by connecting axle 423,423 1 sections of connecting axles are cylindrical connecting axle 425, one section is square column type connecting axle 424, one section of the collar 31 endoporus of described lifter plate 3 is 312, one sections of the circular hole collars that adapt with the aforementioned cylinder square opening collar 311 for adapting with aforementioned square column.When the collar 31 of lifter plate 3 moves to square column connecting axle 423, lifter plate 3 becomes and can not overturn, and while retracting cylinder connecting axle 423, just can spin upside down, and can carry out the work that packs into of paper handkerchief.
As shown in figure 20, also can connecting axle 423 be set for roller gear, the collar 32 endoporus on lifter plate 3 are provided with the internal tooth adapting with aforementioned roller gear, and the collar 31 is being axially arranged with the open slot of perforation.Rotate lifter plate 3, there is elastic deformation in the collar 31, when being turned to enough angles down, lifter plate 3 just can carry out packing into or taking-up work of paper handkerchief, online turning lifting plate 3 again after packing into, the close contact of lifter plate 3 roller gears and ring gear, need certain power just can make the collar 31 elastic deformations, make lifter plate 3 upsets.
As Figure 21, shown in Figure 22, at the back of interconnecting piece 42, be provided with a cushion block 426, the collar 31 of described lifter plate 3 is provided with limited block 32, cushion block 426 and limited block 32 engagement limits lifter plates 3 angle that raises up, described lifter plate 3 bottom surfaces are provided with shifting part 5, described shifting part 5 is provided with mobile jib 51 and is horizontally installed on the sliding bar 52 on mobile jib, backstay 53, sliding bar 52 is arranged in the sliding tray 33 of lifter plate 3 bottoms, on the reinforcement on sliding tray 33 both sides, be provided with projection 34, backstay 53 outer rims are provided with inner recess 54 with matching, can make by moving left and right shifting part 5 front end of shifting part push against or depart from interconnecting piece 42.Turning lifting plate 3, after the limited block 32 on lifter plate 3 is encountered cushion block 426, the flip angle of lifter plate 3 is defined.Move left and right shifting part 5 and lock the angle of untiing lifter plate 3, when shifting part 5 front ends push against interconnecting piece 42 back, the flip angle of lifter plate 3 is locked, mobile shifting part 5, make shifting part 5 shift out interconnecting piece 42 backs, now lifter plate 3 can freely overturn, and can carry out the work that packs into of paper handkerchief.
Below be only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (10)

1. a paper towel box, comprise that box body, described box body bottom are uncovered, it is characterized in that, in described box body, be provided with lifter plate, at described box body lateral wall, be provided with pushing block, location tooth bar, gathering sill, described pushing block can move up and down along gathering sill, and by locating fixedly pushing block position of tooth bar, lifter plate is by pushing block support limit.
2. a kind of paper towel box as claimed in claim 1, it is characterized in that, described pushing block comprises guide pad, location hook, spring, is provided with for supporting the lifter plate bracket of lifter plate in guide pad inner side, is provided with the bracing frame of supporting and location hook in guide pad outside, described location hook is installed on bracing frame, and described spring fitting is between location hook and guide pad.
3. a kind of paper towel box as claimed in claim 1, it is characterized in that, described pushing block comprises guide pad, in guide pad inner side, is provided with for supporting the lifter plate bracket of lifter plate, in guide pad both sides, be respectively equipped with elasticity location hook, described elasticity location hook outer end elastic compression joint is on the tooth bar of location.
4. a kind of paper towel box as claimed in claim 1, is characterized in that, described pushing block comprises locating piece and interconnecting piece, described locating piece is positioned at box body outside, described interconnecting piece is positioned at box body, and one side of interconnecting piece is connected with lifter plate, and the another side of interconnecting piece is fixedly connected with locating piece.
5. a kind of paper towel box as claimed in claim 4, is characterized in that, described box body outside is provided with tooth bar, tooth bar both sides are provided with gathering sill, described locating piece inner side is provided with resilient barb, and locating piece is arranged on tooth bar, and locating piece is installed and is connected in gathering sill with interconnecting piece.
6. a kind of paper towel box as claimed in claim 4, it is characterized in that, described box body outside is provided with groove, the sidewall of groove is provided with tooth bar, the both sides of described groove are provided with gathering sill, and described locating piece inner side is provided with protruding elastic ring, and locating piece is arranged on groove, elastic ring snaps in groove, and locating piece is installed and is connected in gathering sill with interconnecting piece.
7. a kind of paper towel box as claimed in claim 4, it is characterized in that, described box body is overall structure, at box body top, be provided with paper drawing mouth, the junction of described interconnecting piece and lifter plate is provided with connecting axle, and interconnecting piece is connected with the lifter plate that is provided with the collar by connecting axle, one section of described connecting axle is cylindrical, one section is square column type, one section of the collar endoporus of the described lifter plate circular hole for adapting with aforementioned cylinder, one section of square opening for adapting with aforementioned square column.
8. a kind of paper towel box as claimed in claim 4, it is characterized in that, described box body is overall structure, at box body top, be provided with paper drawing mouth, the junction of described interconnecting piece and lifter plate is provided with connecting axle, and interconnecting piece is connected with the lifter plate that is provided with the collar by connecting axle, and described connecting axle is roller gear, collar endoporus on lifter plate is provided with the internal tooth adapting with aforementioned roller gear, and the described collar is being axially arranged with the open slot of perforation.
9. a kind of paper towel box as claimed in claim 4, is characterized in that, described box body is overall structure, at box body top, be provided with paper drawing mouth, described interconnecting piece rear portion is provided with a straight-bar, straight-bar and interconnecting piece chain connection, and straight-bar can rotate around tie point in the plane parallel with lifter plate.
10. a kind of paper towel box as claimed in claim 4, it is characterized in that, described box body is overall structure, at box body top, be provided with paper drawing mouth, described lifter plate bottom surface is provided with shifting part, shifting part is provided with sliding bar, and described sliding bar is arranged in the sliding tray of lifter plate bottom, and mobile shifting part makes the front end of shifting part push against interconnecting piece or departs from interconnecting piece.
CN201420403337.2U 2014-07-21 2014-07-21 A kind of paper towel box Withdrawn - After Issue CN203943609U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420403337.2U CN203943609U (en) 2014-07-21 2014-07-21 A kind of paper towel box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420403337.2U CN203943609U (en) 2014-07-21 2014-07-21 A kind of paper towel box

Publications (1)

Publication Number Publication Date
CN203943609U true CN203943609U (en) 2014-11-19

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CN201420403337.2U Withdrawn - After Issue CN203943609U (en) 2014-07-21 2014-07-21 A kind of paper towel box

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104068778A (en) * 2014-07-21 2014-10-01 陈庆强 Tissue box
CN107591077A (en) * 2017-10-23 2018-01-16 东北师范大学 A kind of soil monolith preservation and display dual-purpose device
CN110652243A (en) * 2019-10-18 2020-01-07 佛山科学技术学院 Paper extraction box

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104068778A (en) * 2014-07-21 2014-10-01 陈庆强 Tissue box
CN104068778B (en) * 2014-07-21 2016-09-07 陈庆强 Paper towel box
CN107591077A (en) * 2017-10-23 2018-01-16 东北师范大学 A kind of soil monolith preservation and display dual-purpose device
CN110652243A (en) * 2019-10-18 2020-01-07 佛山科学技术学院 Paper extraction box

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20141119

Effective date of abandoning: 20160907

C25 Abandonment of patent right or utility model to avoid double patenting