阅读说明：本技术 一种卷筒纸 (Roll paper ) 是由 刘光辉 何磊 于 2020-05-11 设计创作，主要内容包括：本发明属于日常用品技术领域,具体的说是一种卷筒纸,包括卷纸本体与卷筒管；所述卷筒管外部设有卷筒腔,所述卷筒腔由外腔体与内腔体组成,所述外腔体与内腔体的侧面上分别设置有出纸槽；所述内腔体与外腔体相对应的外端面上分别固连有支撑台,所述内腔体的外端面与其所在的支撑台中部滑动连接有调节杆,且所述调节杆内端与外腔体内部所在的支撑台端部螺纹相连,所述卷筒腔两侧设有两安装架；本发明通过将配合卷筒纸使用的卷筒腔设置成能够自由分离与调节的外腔体与内腔体的形式,大大提高了卷筒腔对不同宽度规格的卷筒纸的适应能力,同时有效的降低了卷筒纸在使用时发生的随意晃动,从而大大提高了卷筒纸的使用体验。(The invention belongs to the technical field of daily supplies, and particularly relates to roll paper, which comprises a roll paper body and a roll paper pipe; a reel cavity is arranged outside the reel pipe and consists of an outer cavity and an inner cavity, and paper outlet grooves are respectively formed in the side surfaces of the outer cavity and the inner cavity; the outer end faces of the inner cavity and the outer cavity corresponding to each other are fixedly connected with a supporting table respectively, the outer end face of the inner cavity and the middle part of the supporting table where the inner end face is located are connected with an adjusting rod in a sliding mode, the inner end of the adjusting rod is connected with the end part of the supporting table where the inner part of the outer cavity is located in a threaded mode, and two mounting frames are arranged on two sides of the winding drum cavity; according to the invention, the reel cavity matched with the roll paper is set into the form of the outer cavity body and the inner cavity body which can be freely separated and adjusted, so that the adaptability of the reel cavity to the roll paper with different width specifications is greatly improved, and meanwhile, the random shaking of the roll paper during use is effectively reduced, thereby greatly improving the use experience of the roll paper.)

1. A roll paper comprises a roll paper body (1) and an annular roll pipe (11), wherein the roll paper body (1) is wound on the outer surface of the roll pipe (11); the method is characterized in that: the winding drum is characterized in that an annular winding drum cavity (2) capable of wrapping the winding drum is arranged outside the winding drum pipe (11), the winding drum cavity (2) is composed of an outer cavity (21) and an inner cavity (22) with the outer diameter smaller than the inner diameter of the outer cavity (21), the outer cavity (21) and the inner cavity (22) can be sleeved together to form a cavity for accommodating the winding drum body (1), two end faces, close to each other, of the outer cavity (21) and the inner cavity (22) are arranged to be open ends, and paper outlet grooves (23) which are matched with each other and have the same size and shape are respectively arranged on the side faces of the outer cavity (21) and the inner cavity (22); interior cavity (22) and outer cavity (21) corresponding outer terminal surface have linked firmly brace table (24) respectively, the outer terminal surface of interior cavity (22) has regulation pole (25) rather than brace table (24) middle part sliding connection at place, just it links to each other with brace table (24) tip screw thread at the inside place of outer cavity (21) to adjust pole (25) inner, be connected with a locking platform (26) on the outer terminal surface of regulation pole (25) outer end and outer cavity (21) respectively, the outer terminal surface middle part of a locking platform (26) is provided with locking groove (27) respectively, the equal swing joint in locking groove (27) inside has mounting bracket (3), just reel chamber (2) can freely be installed between two mounting brackets (3).

2. A web as recited in claim 1 wherein: the notch cross-sectional shape of locking groove (27) all sets to the cross, just mounting bracket (3) are connected with No. two locking platforms (31) with locking groove (27) matched with one end, the other end of No. two locking platforms (31) all is connected with and locks groove (27) matched with cross latch segment (32).

3. A web as recited in claim 2 wherein: no. two locking platform (31) comprise the sliding table (33) of inner and fixed station (34) of outer end, be provided with spout (35) on the terminal surface of fixed station (34), be provided with slide bar (36) on sliding table (33) and the corresponding terminal surface of spout (35), slide bar (36) are located inside spout (35) and can freely slide at its inside, link to each other with spring (37) between sliding table (33) and fixed station (34).

4. A web as recited in claim 1 wherein: the outer cavity is characterized in that an axial limiting strip (4) is arranged on the outer side face of the inner cavity (22), and a limiting groove (41) matched with the inner side face of the outer cavity (21) is arranged at a position corresponding to the limiting strip (4).

5. A web as claimed in claim 4, wherein: elastic protective layers (5) are respectively arranged on the outer end faces of the inner cavity (22) and the outer cavity (21), and the length of the winding drum pipe (11) in the axial direction is 1-2mm greater than the width of the winding drum body (1).

6. A web as claimed in claim 5, wherein: the outer edge of the side face of the inner cavity (22) and the outer cavity (21) is provided with a transparent face (6), and the transparent face (6) is annularly arranged on the outer side face of the inner cavity (22) and the outer cavity (21).

Technical Field

The invention belongs to the technical field of daily supplies, and particularly relates to roll paper.

Background

The roll paper is a widely used daily living article, and when the roll paper is used, people usually pull out a central shaft of the roll paper, place the roll paper in a paper cylinder or a paper box, and draw out the paper through a paper extraction hole, wherein the drawn-out paper is rolled and needs to be unfolded for use.

Because roll paper is often placed in the reel chamber and is used, and the length in traditional reel chamber often is fixed, when using the roll paper of different width specifications, often need change the reel chamber rather than width phase adaptation, and when the length in reel chamber is great for the width of roll paper, lie in the roll paper of reel chamber inside this moment and produce unstable the rocking when using easily to influence the use experience of roll paper.

In view of the above, the invention provides a roll paper, and the roll paper cavity used in cooperation with the roll paper is set to be the form of the outer cavity and the inner cavity which can be freely separated and adjusted, so that the adaptability of the roll paper cavity to roll paper with different width specifications is greatly improved, and meanwhile, the random shaking of the roll paper during use is effectively reduced, and the use experience of the roll paper is greatly improved.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides the roll paper, the roll paper cavity matched with the roll paper is set into the form of the outer cavity body and the inner cavity body which can be freely separated and adjusted, so that the adaptability of the roll paper cavity to the roll paper with different width specifications is greatly improved, and meanwhile, the random shaking of the roll paper in use is effectively reduced, and the use experience of the roll paper is greatly improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the roll paper comprises a roll paper body and an annular roll paper tube, wherein the roll paper body is wound on the outer surface of the roll paper tube; the winding drum comprises a winding drum pipe and is characterized in that an annular winding drum cavity capable of wrapping the winding drum pipe is arranged outside the winding drum pipe, the winding drum cavity consists of an outer cavity and an inner cavity of which the outer diameter is smaller than the inner diameter of the outer cavity, the outer cavity and the inner cavity can be sleeved together to form a cavity for accommodating a winding drum body, two end faces, close to each other, of the outer cavity and the inner cavity are arranged to be open ends, and paper outlet grooves which are matched with each other and have the same size and shape are respectively arranged on the side faces of the outer cavity and the inner cavity; the outer end faces of the inner cavity and the outer cavity corresponding to each other are fixedly connected with a support table respectively, the outer end face of the inner cavity and the middle of the support table where the outer end face of the inner cavity is located are connected with an adjusting rod in a sliding mode, the inner end of the adjusting rod is connected with the end portion of the support table where the inner cavity is located in a threaded mode, the outer end of the adjusting rod and the outer end face of the outer cavity are connected with a first locking table respectively, the middle of the outer end face of the first locking table is provided with a locking groove respectively, mounting frames are movably connected inside the locking grooves, and the reel cavity can; when the device works, roll paper is often placed in the roll cavity for use, the length of the traditional roll cavity is often fixed, the roll cavity which is adaptive to the width of the roll paper is often required to be replaced when roll paper with different width specifications is used, and when the length of the roll cavity is larger than the width of the roll paper, the roll paper positioned in the roll cavity is easy to generate unstable shaking during use, so that the use experience of the roll paper is influenced; when the winding drum cavity is used, the winding drum cavity is set into a form of an outer cavity body and an inner cavity body which can be freely separated, when roll paper with different width specifications needs to be replaced, one end of the roll paper is firstly inserted into a supporting table in the outer cavity body from the opening end of the outer cavity body, then the opening end of the inner cavity body is aligned with the opening end of the outer cavity body, paper outlet grooves in the side surfaces of the two cavity bodies are positioned on the same axis, then the inner cavity body is pushed to slowly slide into the inner cavity body, when the inner cavity body drives the end part of an adjusting rod in the inner cavity body to move to the end surface of a supporting table at the outer cavity body, a first locking table at the outer end of the adjusting rod is screwed to enable the inner end of the adjusting rod to be in threaded connection with the supporting table at the outer cavity body and to be gradually screwed into the supporting table, and the first locking table at the outer end of the adjusting rod extrudes the outer end surface of the inner, thereby make the inside cavity width of two cavitys can carry out convenient and swift regulation again according to the width of roll web, align the locking platform of reel chamber both sides with the mounting bracket of both sides afterwards, make the mounting bracket tip can insert the locking inslot portion of a locking platform tip and support and install the reel chamber through the mounting bracket, improved the adaptability of reel chamber to the roll web of different width specifications greatly, the effectual roll web of having alleviated when using condition emergence of rocking at will of while, thereby the use experience of roll web has been improved greatly.

Preferably, the cross-sectional shapes of the notches of the locking grooves are all arranged in a cross shape, one end, matched with the locking groove, of the mounting frame is connected with a second locking table, and the other end of the second locking table is connected with a cross-shaped locking block matched with the locking groove; the during operation, although the mounting bracket can insert to the locking inslot portion, but the relative rotation takes place easily when receiving external effort interference for a locking platform of locking groove department, thereby make the reel chamber between two mounting brackets can not be stable fix, shape through setting up the locking groove this moment, No. two locking platforms on the mounting bracket set up matched with latch segment with it simultaneously, it is spacing to carry out radial ascending rotation to inserting its inside cross latch segment in feasible cross locking groove, thereby it leads to the inconvenient emergence of roll web use because of external force random rotation to reduce the reel chamber of installing between two mounting brackets, the stability of reel chamber when using has been improved greatly.

Preferably, the second locking platform consists of a sliding platform at the inner end and a fixed platform at the outer end, a sliding groove is formed in the end face of the fixed platform, a sliding rod is arranged on the end face of the sliding platform corresponding to the sliding groove, the sliding rod is located in the sliding groove and can freely slide in the sliding groove, and the sliding platform is connected with the fixed platform through a spring; the during operation, through setting the form of sliding stand and fixed station swing joint to the locking platform No. two, make the distance between two mounting bracket tip can make corresponding regulation according to the length in reel chamber, simultaneously at locking platform and sliding stand complex in-process, locking platform makes the sliding stand drive the slide bar and slide in the spout of fixed station and compress the spring between the two through exerting the effort to the sliding stand, the spring exerts reverse effort to a locking platform of effect under the effect of self rebound force this moment, thereby make two mounting brackets can play the tight effect of clamp to the reel chamber in its middle part, reduce the reel chamber and break away from between two mounting brackets, thereby further improved the stability of reel chamber when using.

Preferably, an axial limiting strip is arranged on the outer side surface of the inner cavity, and a limiting groove matched with the inner side surface of the outer cavity is arranged at the position corresponding to the limiting strip; the during operation, because interior cavity is swing joint with outer cavity, make interior cavity take place relative rotation with outer cavity easily under the external force interference, the play paper slot that two cavitys department was aligned takes place the skew and influences the roll web and take out smoothly from going out the inside of paper slot this moment, this moment through including set up spacing and spacing groove on cavity and the outer cavity side respectively, when carrying out the assembly of two cavitys, through inserting spacing to the spacing inslot portion, make spacing and the spacing groove of mutually supporting can carry on spacingly to the radial ascending relative rotation of two cavitys, thereby the stability of reel chamber when using has further been improved.

Preferably, the outer end faces of the inner cavity and the outer cavity are respectively provided with an elastic protective layer, and the length of the winding drum pipe in the axial direction is 1-2mm greater than the width of the winding drum body; the during operation, when interior cavity receives external powerful interference, cavity atress is inside to the outer cavity easily this moment, thereby make two cavities that draw close each other extrude its inside roll paper and lead to its terminal surface edge to produce the indentation damage, this moment through including cavity and outer cavity's outer terminal surface department set up the inoxidizing coating respectively, make the inoxidizing coating that sets up can carry out effectual protection to the both ends of roll paper, and through setting up the form of protrusion to roll paper body outer end with the reel pipe tip, when making interior cavity and outer cavity extrude the roll paper in its middle part, two cavity terminal surfaces at first with the reel pipe contact pressfitting of roll paper body outer end, reduce the damage that two cavities are direct and roll paper body terminal surface contact extrusion lead to, thereby the effectual use quality who improves the roll paper.

Preferably, the outer edges of the side surfaces of the inner cavity and the outer cavity are provided with transparent surfaces, and the transparent surfaces are annularly arranged on the outer side surfaces of the inner cavity and the outer cavity; the during operation sets up annular transparent surface through the side outward flange department with interior cavity and outer cavity for two cavitys can see through the transparent surface and observe the distance between its inside roll web terminal surface and two cavity terminal surfaces when carrying out the regulation of inside cavity, thereby can carry out accuracy and reasonable regulation with the cavity that two cavitys are constituteed, the transparent surface that sets up simultaneously also can convenient and fast observe and in time change the paper quantity of roll web, thereby convenience and practicality when having improved the reel chamber greatly and using.

The invention has the following beneficial effects:

1. according to the invention, the reel cavity matched with the roll paper is set into the form of the outer cavity body and the inner cavity body which can be freely separated and adjusted, so that the adaptability of the reel cavity to the roll paper with different width specifications is greatly improved, and meanwhile, the random shaking of the roll paper during use is effectively reduced, thereby greatly improving the use experience of the roll paper.

2. According to the invention, through arranging the locking structure between the first locking platform and the mounting frames, the occurrence of inconvenience in use of roll paper caused by random rotation of the roll cavity arranged between the two mounting frames due to external force is effectively reduced, so that the stability of the roll cavity in use is greatly improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the half-section of the spool chamber and mounting bracket assembly of the present invention;

FIG. 3 is a schematic partial exploded view of the spool chamber and mounting bracket of the present invention;

FIG. 4 is an enlarged view at A in FIG. 3;

in the figure: the paper roll comprises a paper roll body 1, a roll tube 11, a roll cavity 2, an outer cavity 21, an inner cavity 22, a paper outlet groove 23, a support table 24, an adjusting rod 25, a first locking table 26, a locking groove 27, an installation frame 3, a second locking table 31, a locking block 32, a sliding table 33, a fixed table 34, a sliding groove 35, a sliding rod 36, a spring 37, a limiting strip 4, a limiting groove 41, a protective layer 5 and a transparent surface 6.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in fig. 1-4, the roll paper of the present invention includes a roll paper body 1 and an annular roll tube 11, wherein the roll paper body 1 is wound on the outer surface of the roll tube 11; the winding drum comprises a winding drum pipe 11 and is characterized in that an annular winding drum cavity 2 capable of wrapping the winding drum pipe is arranged outside the winding drum pipe 11, the winding drum cavity 2 is composed of an outer cavity 21 and an inner cavity 22, the outer diameter of the inner cavity is smaller than the inner diameter of the outer cavity 21, the outer cavity 21 and the inner cavity 22 can be sleeved together to form a cavity for containing a winding drum body 1, two end faces, close to each other, of the outer cavity 21 and the inner cavity 22 are arranged to be open ends, and paper outlet grooves 23 which are matched with each other and have the same size and shape are respectively arranged on the side faces of the outer cavity 21; the outer end faces, corresponding to the inner cavity 22 and the outer cavity 21, are fixedly connected with supporting tables 24 respectively, the outer end face of the inner cavity 22 and the middle part of the supporting table 24 where the outer end face is located are connected with adjusting rods 25 in a sliding mode, the inner ends of the adjusting rods 25 are connected with the end part of the supporting table 24 where the inner part of the outer cavity 21 is located in a threaded mode, the outer end of each adjusting rod 25 and the outer end face of the outer cavity 21 are connected with a first locking table 26 respectively, the middle part of the outer end face of each first locking table 26 is provided with a locking groove 27 respectively, the inner parts of the locking grooves 27 are movably connected with mounting frames 3 respectively, and the reel; when the device works, roll paper is often placed in the roll cavity 2 for use, the length of the traditional roll cavity 2 is often fixed, when roll paper with different width specifications is used, the roll cavity 2 adapting to the width of the roll paper is often required to be replaced, and when the length of the roll cavity 2 is larger than the width of the roll paper, the roll paper positioned in the roll cavity 2 is easy to generate unstable shake during use, so that the use experience of the roll paper is influenced; when the drum cavity 2 in the invention is used, the drum cavity 2 is set into the form of the outer cavity 21 and the inner cavity 22 which can be freely separated, when roll paper with different width specifications needs to be replaced, one end of the roll paper is firstly inserted into the support table 24 in the outer cavity 21 from the open end of the outer cavity 21, then the open end of the inner cavity 22 is aligned with the open end of the outer cavity 21, the paper outlet grooves 23 on the side surfaces of the two cavities are positioned on the same axis, then the inner cavity 22 is pushed to slowly slide into the outer cavity 21, when the inner cavity 22 drives the end of the adjusting rod 25 in the inner cavity to move to the end surface of the support table 24 in the outer cavity 21, the inner end of the adjusting rod 25 is in threaded connection with the support table 24 in the outer cavity 21 and is gradually screwed into the support table 24 by screwing the first locking table 26 at the outer end of the adjusting rod 25, and the first locking table 26 at the outer end of the adjusting rod 25 moves towards the direction of the outer cavity 21 and simultaneously faces the The terminal surface extrudees and makes it slowly slide in to outer cavity 21 inside, thereby make the inside cavity width of two cavitys can carry out convenient and swift regulation again according to the width of roll web, align the locking platform 26 of 2 both sides in reel chamber with the mounting bracket 3 of both sides afterwards, make the 3 tip of mounting bracket can insert to the locking groove 27 of 26 tip of a locking platform inside and support and install reel chamber 2 through mounting bracket 3, the adaptability of reel chamber 2 to the roll web of different width specifications has been improved greatly, simultaneously the effectual condition of having alleviated the roll web and rocking at will when using takes place, thereby the use experience of roll web has been improved greatly.

As an embodiment of the present invention, the cross-sectional shapes of the notches of the locking grooves 27 are all set to be cross-shaped, and one end of the mounting frame 3, which is matched with the locking grooves 27, is connected with a second locking table 31, and the other end of the second locking table 31 is connected with a cross-shaped locking block 32, which is matched with the locking grooves 27; during operation, although the mounting bracket 3 can insert inside locking groove 27, but locking platform 26 of locking groove 27 department takes place relative rotation easily when receiving external effort interference, thereby make reel chamber 2 between two mounting brackets 3 can not be stable fix, shape through setting up locking groove 27 this moment, No. two locking platforms 31 on mounting bracket 3 set up matched with latch segment 32 with it simultaneously, it is spacing to make crisscross locking groove 27 can carry out radial ascending rotation to inserting its inside cross latch segment 32, thereby it leads to the inconvenient emergence of roll paper use to reduce to install reel chamber 2 between two mounting brackets 3 because of external force rotates at will, the stability of reel chamber 2 when using has been improved greatly.

As an embodiment of the present invention, the second locking stage 31 is composed of a sliding stage 33 at the inner end and a fixed stage 34 at the outer end, a sliding slot 35 is arranged on the end surface of the fixed stage 34, a sliding rod 36 is arranged on the end surface of the sliding stage 33 corresponding to the sliding slot 35, the sliding rod 36 is located inside the sliding slot 35 and can freely slide inside the sliding slot 35, and the sliding stage 33 is connected with the fixed stage 34 by a spring 37; during operation, through setting No. two locking platforms 31 to the form of sliding stand 33 and fixed station 34 swing joint, make the distance between two mounting bracket 3 tip can make corresponding regulation according to the length in reel chamber 2, simultaneously at a locking platform 26 and the complex in-process of sliding stand 33, a locking platform 26 makes sliding stand 33 drive slide bar 36 slide in the spout 35 of fixed station 34 and compress spring 37 between the two through exerting the effort to sliding stand 33, spring 37 exerts reverse effort to a locking platform 26 of effect under the effect of self bounce-force this moment, thereby make two mounting brackets 3 can play the tight effect of clamp to reel chamber 2 at its middle part, reduce reel chamber 2 and break away from between two mounting brackets 3, thereby further improved the stability of reel chamber 2 when using.

As an embodiment of the present invention, an axial limiting strip 4 is disposed on an outer side surface of the inner cavity 22, and a limiting groove 41 matched with the inner side surface of the outer cavity 21 is disposed at a position corresponding to the limiting strip 4; during operation, because interior cavity 22 is swing joint with outer cavity 21, make interior cavity 22 take place relative rotation with outer cavity 21 easily under external force interference, the play paper slot 23 that two cavitys department aligns takes place the skew and influences the roll web and take out from going out the smooth of paper slot 23 inside this moment, cavity 22 and outer cavity 21 side set up spacing 4 and spacing groove 41 respectively through including this moment, when carrying out the assembly of two cavitys, through inserting spacing 4 inside spacing groove 41, make spacing 4 and the spacing groove 41 of mutually supporting can be spacing to the radial ascending relative rotation of two cavitys, thereby further improved the stability of reel chamber 2 when using.

As an embodiment of the invention, the outer end surfaces of the inner cavity 22 and the outer cavity 21 are respectively provided with an elastic protective layer 5, and the length of the reel pipe 11 in the axial direction thereof is 1-2mm greater than the width of the reel body 1; when the roll paper rolling machine is in operation, when the inner cavity 22 is subjected to external powerful interference, the inner cavity 22 is easy to be stressed to slide towards the inside of the outer cavity 21 at the moment, so that two cavities which are close to each other extrude roll paper in the inner cavity to cause indentation damage to the edge of the end face of the inner cavity, at the moment, the protective layers 5 are respectively arranged at the outer end faces of the inner cavity 22 and the outer cavity 21, the set protective layers 5 can effectively protect the two ends of the roll paper, the end part of the roll paper pipe 11 is arranged to be protruded to the outer end of the roll paper body 1, when the inner cavity 22 and the outer cavity 21 extrude the roll paper in the middle of the inner cavity, the end faces of the two cavities are firstly in contact and press fit with the roll paper pipe 11 at the outer end of the roll paper body 1, the damage caused by direct contact and extrusion of.

As an embodiment of the present invention, the outer edges of the side surfaces of the inner cavity 22 and the outer cavity 21 are provided with transparent surfaces 6, and the transparent surfaces 6 are annularly arranged on the outer side surfaces of the inner cavity 22 and the outer cavity 21; the during operation, through setting up annular transparency 6 with the side outward flange department of interior cavity 22 and outer cavity 21, make two cavitys can see through the transparency 6 and observe the distance between its inside roll web terminal surface and two cavity terminal surfaces when carrying out the regulation of inside cavity, thereby can carry out accuracy and reasonable regulation with the cavity that two cavitys are constituteed, the transparency 6 that sets up simultaneously also can convenient and fast observe and in time change the paper quantity of roll web, thereby convenience and practicality when having improved reel chamber 2 greatly.

When the roll paper changing machine works, the roll paper cavity 2 is set to be the form of the outer cavity 21 and the inner cavity 22 which can be freely separated, when roll paper with different width specifications needs to be changed, one end of the roll paper is firstly inserted into the support table 24 in the outer cavity 21 from the opening end of the outer cavity 21, then the opening end of the inner cavity 22 is aligned with the opening end of the outer cavity 21, the paper outlet grooves 23 on the side surfaces of the two cavities are positioned on the same axis, then the inner cavity 22 is pushed to slowly slide into the outer cavity 21, when the inner cavity 22 drives the end part of the adjusting rod 25 in the inner cavity to move to the end surface of the support table 24 in the outer cavity 21, the inner end of the adjusting rod 25 is in threaded connection with the support table 24 in the outer cavity 21 and is gradually screwed into the support table 24 by screwing the first locking table 26 at the outer end of the adjusting rod 25, and at the same time the first locking table 26 at the outer end of the adjusting rod 25 extrudes the outer end surface of the inner Slide in to outer cavity 21 inside, thereby make the inside cavity width of two cavities can carry out convenient and swift regulation again according to the width of roll web, align the locking platform 26 of 2 both sides in reel chamber with the mounting bracket 3 of both sides afterwards, make the 3 tip of mounting bracket can insert to the locking groove 27 of 26 tip of a locking platform inside and support and install reel chamber 2 through mounting bracket 3, the adaptability of 2 roll webs to different width specifications of reel chamber is greatly improved, simultaneously the effectual condition of having alleviated the roll web and rocking at will when using takes place, thereby the use experience of roll web has been greatly improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.