CN217969003U

CN217969003U - Loose-leaf notebook

Info

Publication number: CN217969003U
Application number: CN202220394386.9U
Authority: CN
Inventors: 吴潇雄; 娄亚彬
Original assignee: Deli Group Co Ltd
Current assignee: Deli Group Co Ltd
Priority date: 2021-12-13
Filing date: 2022-02-25
Publication date: 2022-12-06
Anticipated expiration: 2032-02-25
Also published as: CN217347279U; CN114789619A; CN218197627U; CN217969002U; CN114750532A; CN217969001U

Abstract

The utility model discloses a loose-leaf notebook, which comprises a cover, a loose-leaf binder and loose-leaf paper, wherein the loose-leaf binder comprises a base, the base is fixedly connected in the cover, a first supporting bulge (11) and a second supporting bulge (12) are respectively arranged at two sides of the base (6), and the heights of the supporting surfaces of the first supporting bulge (11) and the second supporting bulge (12) are both lower than the height of the upper plane of the base (6); a first binding half ring (401) is arranged on the supporting surface of the first supporting bulge, a second binding half ring (402) is arranged on the second supporting bulge, and the first binding half ring and the second binding half ring are spliced to form a binding ring (4); the loose-leaf pages (5) are bound on the binding ring (4), and the binding edges of the loose-leaf pages can be lapped on the supporting surface of the first supporting bulge (11) or the supporting surface of the second supporting bulge (12). This loose-leaf notebook can reduce the difference in height of paper left end and paper face greatly for the user does not press the hand when writing, and the user writes experience and feels better.

Description

Loose-leaf notebook

Technical Field

The utility model relates to the technical field of stationery, more precisely relate to a loose-leaf notebook.

Background

The loose-leaf notebook is a common stationery, also called loose-leaf notebook and loose-leaf notebook, and is composed of a cover, a loose-leaf binder (or coil) and paper, pages in the notebook can be freely taken down and added, compared with the common notebook, the loose-leaf notebook is more flexible to use, the paper can be freely detached, replaced and combined, and is convenient to arrange, and a user can also use the DIY according to own preferences. The loose-leaf notebook can be used for writing notes, keeping a record of events, making drafts and the like.

As shown in fig. 1, although the types and the number of loose-leaf notebooks on the market are very large, the loose-leaf notebooks of the prior art have the following defects: paper passes behind the ring on the clip can be arranged in to the paper left end, and the left end that leads to the paper can the perk comes, is higher than the paper a lot, unsettled under the paper left end for the user more presses against the hand when writing, writes to experience and feels relatively poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a loose-leaf notebook, this loose-leaf notebook can reduce the difference in height of paper left end and paper face greatly for the user does not press against the hand when writing, and the user writes to experience and feels better.

The technical solution of the utility model is to provide a loose-leaf notebook with the following structure, including front cover, loose-leaf binder and loose-leaf paper, the loose-leaf binder include the base, the base fixed connection in the front cover, both sides of the base be equipped with first support arch and second support arch respectively, the height of the support surface of first support arch and second support arch all be less than the height of the upper plane of the base; the first binding half ring is arranged on the supporting surface of the first supporting bulge, the second binding half ring is arranged on the second supporting bulge, and the first binding half ring and the second binding half ring are spliced to form a binding ring; the loose-leaf paper is bound on the binding ring, and the binding edge of the loose-leaf paper can be lapped on the supporting surface of the first supporting bulge or the supporting surface of the second supporting bulge.

After the structure more than adopting, the utility model discloses a loose-leaf notebook compares with prior art, has following advantage:

because the utility model discloses a both sides of loose-leaf notebook's base are equipped with first supporting protrusion and second supporting protrusion respectively, first supporting protrusion and second supporting protrusion's holding surface highly all be less than the base on planar height, when opening or fold the loose-leaf notebook, the binding edge of loose-leaf paper is taken on first supporting protrusion's holding surface or second supporting protrusion's holding surface, greatly reduced loose-leaf paper binding edge's height, can reduce the difference in height of loose-leaf paper left end yoshino face greatly for the user does not press the hand when writing, the user writes experience and feels better.

As an improvement, the binder further comprises a first bottom plate, a second bottom plate and an opening and closing assembly, wherein the first bottom plate and the second bottom plate are in sliding fit with two sides of the base; the first supporting bulge is formed between the first bottom plate and the base, and the second supporting bulge is formed between the second bottom plate and the base; the opening and closing assembly is arranged on the base and used for driving the first bottom plate and the second bottom plate to be opened or closed so as to drive the first stapling half ring and the second stapling half ring to be opened or closed. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, a first bulge and a first groove are arranged on one side of the first bottom plate close to the second bottom plate, and a second groove corresponding to the first bulge and a second bulge corresponding to the first groove are arranged on one side of the second bottom plate close to the first bottom plate; when the first bottom plate and the second bottom plate are folded, the first protrusion is embedded in the second groove, and the second protrusion is embedded in the first groove. After the structure is adopted, the loose-leaf binder has a compact structure, and can effectively reduce the width of the loose-leaf book, thereby effectively controlling the size of the loose-leaf book.

As an improvement, a space is reserved between the base and the cover, and the first bottom plate and the second bottom plate are movably arranged in the space. After the structure is adopted, the first bottom plate and the second bottom plate can move flexibly, the loose-leaf notebook can be opened and closed smoothly, and the use experience of a user is good.

As an improvement, supporting legs are arranged on the lower sides of the two ends of the base and are fixedly connected in the cover; the height of the supporting feet corresponds to the height of the space. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, the supporting legs are provided with backing plates at one sides close to the first bottom plate and the second bottom plate, and the backing plates are positioned at the lower side of the base; the two ends of the first bottom plate are respectively provided with a first sliding plate, and the first sliding plates are in sliding fit between the corresponding base plates and the base; and second sliding plates are respectively arranged at two ends of the second bottom plate and are in sliding fit between the corresponding base plates and the base. After adopting this kind of structure, the backing plate has the effect of supporting first bottom plate and second bottom plate, also enables to leave certain free distance between first bottom plate and the front cover with second bottom plate for first bottom plate and the activity of second bottom plate are more smooth and easy.

As an improvement, the first bottom plate is provided with a first plug connector, the side wall of the base is provided with a first lug, the first lug is provided with a first jack, and the first plug connector is inserted into the first jack. After adopting this kind of structure, through the cooperation of first plug connector and first jack, can inject the slip direction of first bottom plate, simple structure and stability, the equipment is convenient.

As an improvement, a second plug connector is arranged on the second base plate, a second lug is arranged on the side wall of the base, a second jack is arranged on the second lug, and the second plug connector is inserted into the second jack. After adopting this kind of structure, through the cooperation of second plug connector and second jack, can inject the slip direction of second bottom plate, simple structure and stability, the equipment is convenient.

As an improvement, the opening and closing assembly comprises a driving piece, a slide way is arranged on the base, and the driving piece is in sliding fit with the slide way; the first bottom plate is provided with a first slide rail, the second bottom plate is provided with a second slide rail, the driving piece is provided with a first driving pin and a second driving pin, the first driving pin is in sliding fit with the first slide rail, the second driving pin is in sliding fit with the second slide rail, and the driving piece is pulled to drive the first bottom plate and the second bottom plate to slide relatively or reversely. After adopting this kind of structure, drive first bottom plate and second bottom plate relative slip or reverse slip through first drive round pin and first slide rail cooperation and second drive round pin and second slide rail cooperation, simple structure, operation and equipment are all more convenient.

As an improvement, sliding grooves are formed in one side, close to the first bottom plate and the second bottom plate, of the base, the first bottom plate and the second bottom plate are movably matched at openings of the sliding grooves, and the sliding ways are formed between the sliding grooves and the first bottom plate and between the sliding grooves and the second bottom plate. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, one end of the driving piece is exposed out of the chute of the base; the end of the driving piece is provided with a handle. After adopting this kind of structure, holding the handle just can pull the driving piece, it is more convenient to operate.

As an improvement, a limiting bulge is arranged at the bottom of the sliding groove, and a limiting hole is arranged on the driving piece; the limiting bulge is in sliding fit in the limiting hole. After adopting this kind of structure, the structure in spacing arch and spacing hole can restrict the driving piece slide in the slide, simple structure, spacing effectual.

As an improvement, supporting legs are arranged at two ends of the base and at two sides of the sliding groove; the position of the driving piece, which is close to the handle, is provided with a limiting step, and the limiting step is limited on the inner side of the supporting leg. After adopting this kind of structure, spacing step's structure can slide driving piece spacing in the slide, simple structure, spacing effectual.

As an improvement, a first slot and a second slot are arranged on the base; the first bulge is inserted in the first slot, and the second bulge is inserted in the second slot. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, a supporting block is arranged at the bottom of the sliding groove of the base and between the first protrusion and the second protrusion, a first step is arranged at one side of the supporting block close to the first protrusion, and a first slot is formed between the first step and the bottom of the sliding groove; and a second step is arranged on one side of the supporting block close to the second bulge, and a second slot is formed between the second step and the bottom of the sliding groove. After adopting this kind of structure, first slot and second slot simple structure, it is more convenient with equipment between first arch and the second arch respectively.

As an improvement, the driving piece is provided with an avoiding hole for avoiding the supporting block, and the driving piece is sleeved outside the supporting block. After adopting this kind of structure, simple structure, the driving piece cover in the supporting shoe outside, the supporting shoe has spacing effect to the driving piece, the structure is more reliable and more stable.

Drawings

Fig. 1 is a schematic perspective view of a loose-leaf notebook according to the prior art.

Fig. 2 is a schematic perspective view of a loose-leaf notebook according to a first embodiment of the present invention.

Fig. 3 is an enlarged structural view of a portion a in fig. 2.

Fig. 4 is a schematic perspective view a of a binder of a loose-leaf notebook according to a first embodiment of the present invention.

Fig. 5 is a schematic perspective view B of a binder of a loose-leaf notebook according to a first embodiment of the present invention.

Fig. 6 is a schematic perspective view a showing an open state of a binder of a loose-leaf notebook according to a first embodiment of the present invention.

Fig. 7 is a schematic perspective view B of an opened state of a binder of a loose-leaf notebook according to a first embodiment of the present invention.

Fig. 8 is an exploded schematic view a of a binder of a loose-leaf notebook according to a first embodiment of the present invention.

Fig. 9 is an exploded schematic view B of a binder of a loose-leaf notebook according to a first embodiment of the present invention.

Fig. 10 is a schematic perspective view a of a binder of a loose-leaf notebook according to a second embodiment of the present invention.

Fig. 11 is a schematic perspective view B of a binder of a loose-leaf notebook according to a second embodiment of the present invention.

Fig. 12 is a schematic diagram of a partially exploded structure of a binder of a loose-leaf notebook according to a second embodiment of the present invention.

Fig. 13 is an assembly structure diagram of a first bottom plate and a base of a binder of a loose-leaf notebook according to a second embodiment of the present invention.

Fig. 14 is an enlarged structural view of a portion B in fig. 14.

Shown in the figure: 1. front cover, 2, back cover, 3, spine, 4, binding ring, 401, first binding half ring, 402, second binding half ring, 5, loose-leaf paper, 501, binding hole, 6, base, 601, sliding slot, 602, limiting protrusion, 603, first lug, 604, first insertion hole, 605, second lug, 606, second insertion hole, 7, first bottom plate, 701, first sliding plate, 702, first sliding rail, 703, first plug connector, 704, first protrusion, 705, first groove, 8, second bottom plate, 801, second sliding plate, 802, second sliding rail, 803, second plug connector, 804, second groove, 805, second protrusion, 9, supporting leg, 901, backing plate, 10, driving piece, 1001, first driving pin, 1002, second driving pin, 1003, handle, 1004, limiting hole, 1005, limiting step, 11, first supporting protrusion, 12, second supporting protrusion, 13, supporting block, 14, first step, 15, first step, 16, second slot, 18, avoiding slot.

Detailed Description

In order that the present application may be better understood, various aspects of the present application will be described in greater detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "has," "including," "contains" and/or "containing," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Example one

As shown in fig. 2, the present embodiment discloses a loose-leaf notebook, which includes a cover, a binder, and loose-leaf paper 5. The cover comprises a front cover 1, a back cover 2 and a spine 3, wherein the spine 3 is connected between the front cover 1 and the back cover 2. The binder is fixedly connected to the back cover 2. The loose-leaf binder is provided with a plurality of binding rings 4 along the length direction, binding holes 501 matched with the binding rings 4 are arranged on the binding edges of the loose-leaf papers 5, the loose-leaf papers 5 are bound on the binding rings 4, and the binding rings 4 penetrate through the binding holes 501 of the loose-leaf papers 5.

As shown in fig. 3 to 9, the binder includes a base 6, a first bottom plate 7, a second bottom plate 8, and an opening and closing assembly. The two ends of the base 6 are provided with supporting legs 9, and the supporting legs 9 are fixedly connected to the inner side of the back cover 2. A space is left between the base 6 and the back cover 2. The first bottom plate 7 and the second bottom plate 8 are in sliding fit with two sides of the base 6; the first bottom plate 7 and the second bottom plate 8 are arranged in the space. One side of the base 6, which is close to the first bottom plate 7 and the second bottom plate 8, is provided with a sliding groove 601, the first bottom plate 7 and the second bottom plate 8 penetrate through the space and are movably connected at the opening of the sliding groove 601, and the bottom of the sliding groove 601 and the first bottom plate 7 and the second bottom plate 8 form the slideway therebetween. The two ends of the base 6 are provided with the supporting legs 9 at the two sides of the sliding groove 601.

Backing plates 901 are arranged on the supporting feet 9 close to the first bottom plate 7 and the second bottom plate 8, the backing plates 901 are positioned on the lower side of the base 6, and a height difference exists between the backing plates 901 and the lower side of the base 6; two ends of the first bottom plate 7 are respectively provided with a first sliding plate 701, and the first sliding plates 701 are in sliding fit between the corresponding base plates 901 and the base 6; two ends of the second bottom plate 8 are respectively provided with a second sliding plate 801, and the second sliding plates 801 are in sliding fit between the corresponding base plate 901 and the base 6.

A first protrusion 704 and a first groove 705 are arranged on one side of the first bottom plate 7 close to the second bottom plate 8, in this embodiment, two first protrusions 704 and two first grooves 705 are arranged; one side of the second bottom plate 8 close to the first bottom plate 7 is provided with a second groove 804 corresponding to the first protrusion 704 and a second protrusion 805 corresponding to the first groove 705, and correspondingly, two second grooves 804 and two second protrusions 805 are also provided. The first bottom plate 7 is provided with a first plug connector 703, and one end of the first plug connector 703 is connected to the bottom of the first groove 705. The side wall of the base 6 is provided with a first lug 603, the first lug 603 is provided with a first insertion hole 604, and the first plug connector 703 is inserted into the first insertion hole 604. The second bottom plate 8 is provided with a second connector 803, and one end of the second connector 803 is connected to the bottom of the second groove 804. The side wall of the base 6 is provided with a second lug 605, the second lug 605 is provided with a second insertion hole 606, and the second plug connector 803 is inserted into the second insertion hole 606.

The opening and closing assembly comprises a driving piece 10, and the driving piece 10 is in sliding fit in the slide way. The first bottom plate 7 is provided with a first slide rail 702, and the first slide rail 702 is arranged on the first protrusion 704. The second bottom plate 8 is provided with a second slide rail 802, and the second slide rail 802 is arranged on the second protrusion 805. The driving member 10 is provided with a first driving pin 1001 and a second driving pin 1002, the first driving pin 1001 is slidably fitted in the first slide rail 702, and the second driving pin 1002 is slidably fitted in the second slide rail 802, so as to pull the driving member 10 to drive the first bottom plate 7 and the second bottom plate 8 to relatively slide or reversely slide.

The first bottom plate 7 is provided with a first stapling half ring 401, the second bottom plate 8 is provided with a second stapling half ring 402, and the first stapling half ring 401 and the second stapling half ring 402 can be spliced to form the stapling ring 4. When the first bottom plate 7 and the second bottom plate 8 slide relatively, the first bottom plate 7 and the second bottom plate 8 slowly close to drive the first stapling half ring 401 and the second stapling half ring 402 to close, when the first bottom plate 7 and the second bottom plate 8 close, the first protrusion 704 is embedded in the second groove 804, and the second protrusion 805 is embedded in the first groove 705. When the first bottom plate 7 and the second bottom plate 8 slide in opposite directions, the first bottom plate 7 and the second bottom plate 8 slowly open to drive the first stapling half ring 401 and the second stapling half ring 402 to open, when the first bottom plate 7 and the second bottom plate 8 open, the first protrusion 704 is disengaged from the second groove 804, and the second protrusion 805 is disengaged from the first groove 705.

When the first bottom plate 7 and the second bottom plate 8 are folded, the first supporting protrusion 11 is formed between the first bottom plate 7 and the base 6, that is, the portion of the first bottom plate 7 protruding out of the side wall of the base 6 is the first supporting protrusion 11, one end of the first binding half ring 401 is fixedly connected to the supporting surface of the first supporting protrusion 11, and when the loose-leaf notebook is used, one side of the loose-leaf paper bound by the binding ring 4 can be lapped on the supporting surface of the first supporting protrusion 11. The second supporting protrusion 12 is formed between the second bottom plate 8 and the base 6, that is, the portion of the second bottom plate 8 protruding out of the side wall of the base is the second supporting protrusion 12, one end of the second binding half ring 402 is fixedly connected to the supporting surface of the second supporting protrusion 12, and when the loose-leaf notebook is used, one side of the loose-leaf paper 5 bound by the binding ring can be lapped on the supporting surface of the second supporting protrusion 12. But above structure greatly reduced loose-leaf paper bind marginal height, can reduce the difference in height of 5 left ends of loose-leaf paper and paper greatly for the user does not press the hand when writing, and the user writes experience and feels better.

Two ends of the sliding chute 601 are also provided with openings, one end of the driving part 10 penetrates through the opening at one end of the sliding chute 601 and is exposed outside the sliding chute 601, and the end of the driving part 10 is provided with a handle 1003. The bottom of the sliding groove 601 is provided with a limiting protrusion 602, the driving member 10 is provided with a limiting hole 1004, and the limiting protrusion 602 is slidably fitted in the limiting hole 1004. A position of the driving member 10 close to the handle 1003 is provided with a limiting step 1005, and the limiting step 1005 is limited at the inner side of the supporting foot 9.

In this embodiment, when the driving member 10 is pulled outward, the first bottom plate 7 and the second bottom plate 8 are separated, and the binding ring is opened, so that loose-leaf pages can be bound; when the driving piece 10 is pushed inwards, the first bottom plate 7 and the second bottom plate 8 are folded, the binding rings are folded, and the loose-leaf paper binding is completed.

Example two

As shown in fig. 10 to 14, this specific embodiment discloses a loose-leaf notebook, and compared with the loose-leaf notebook disclosed in the first embodiment, the connection structure between the first bottom plate 7 and the base 6 and the connection structure between the second bottom plate 8 and the base 6 in this embodiment are different from those in the first embodiment. In this embodiment, the base 6 is provided with a first slot 15 and a second slot 17, the first protrusion 704 of the first bottom plate 7 is inserted into the first slot 15, and the second protrusion 805 of the second bottom plate 8 is inserted into the second slot 17. A supporting block 13 is arranged at the bottom of the sliding groove 601 of the base 6 and between the first protrusion 704 and the second protrusion 805, a first step 14 is arranged at one side of the supporting block 13 close to the first protrusion 704, and a first slot 15 is formed between the first step 14 and the bottom of the sliding groove 601; a second step 16 is arranged on one side of the supporting block 13 close to the second protrusion 805, and a second slot 17 is formed between the second step 16 and the bottom of the sliding groove 601.

The driving member structure of the present embodiment is different from that of the first embodiment. In this embodiment, the driving member 10 is further provided with avoidance holes 18 for avoiding the supporting blocks 13, and the number of the avoidance holes 18 corresponds to the number of the supporting blocks 13. The driving member 10 is not provided with a limiting step 1005.

The connection structure between the support foot 9 and the first and

second bottom plates

7 and 8 of the present embodiment is different from that of the first embodiment. In this embodiment, the cushion block 901 of the supporting foot 9 is connected to the base 6, and there is no height difference between the cushion block 901 and the base 6. The first sliding plate 701 at the end of the first bottom plate 7 is padded at the lower side of the corresponding cushion block 901; the second sliding plate 801 at the end of the second bottom plate 8 is arranged at the lower side of the corresponding cushion block 901, and by adopting the structure, the matching size between the first bottom plate 7 and the base 6, the second bottom plate 8 and the base 6 is more accurate, and the movement is more stable.

Claims

1. The utility model provides a loose-leaf notebook, includes front cover, loose-leaf binder and loose-leaf paper (5), its characterized in that: the loose-leaf binder comprises a base (6), the base (6) is fixedly connected in the cover, a first supporting protrusion (11) and a second supporting protrusion (12) are respectively arranged on two sides of the base (6), and the height of the supporting surface of each of the first supporting protrusion (11) and the second supporting protrusion (12) is lower than that of the upper plane of the base (6); a first binding half ring (401) is arranged on the supporting surface of the first supporting protrusion (11), a second binding half ring (402) is arranged on the second supporting protrusion (12), and the first binding half ring (401) and the second binding half ring (402) are spliced to form a binding ring (4); the loose-leaf paper (5) is bound on the binding ring (4), and the binding edge of the loose-leaf paper (5) can be lapped on the supporting surface of the first supporting bulge (11) or the supporting surface of the second supporting bulge (12).

2. A loose-leaf notebook according to claim 1, wherein: the loose-leaf binder also comprises a first bottom plate (7), a second bottom plate (8) and an opening and closing assembly, wherein the first bottom plate (7) and the second bottom plate (8) are in sliding fit with two sides of the base (6); the first supporting bulge (11) is formed between the first bottom plate (7) and the base (6), and the second supporting bulge (12) is formed between the second bottom plate (8) and the base (6); the opening and closing component is arranged on the base (6) and is used for driving the first bottom plate (7) and the second bottom plate (8) to open or close so as to drive the first stapling semi-ring and the second stapling semi-ring to open or close.

3. A loose-leaf notebook according to claim 2, wherein: a first bulge (704) and a first groove (705) are arranged on one side, close to the second bottom plate (8), of the first bottom plate (7), and a second groove (804) corresponding to the first bulge (704) and a second bulge (805) corresponding to the first groove (705) are arranged on one side, close to the first bottom plate (7), of the second bottom plate (8); when the first bottom plate (7) is folded with the second bottom plate (8), the first protrusion (704) is embedded in the second groove (804), and the second protrusion (805) is embedded in the first groove (705).

4. A loose-leaf notebook according to claim 3, wherein: base (6) with the front cover between leave the space, first bottom plate (7) and second bottom plate (8) movable mounting in the space.

5. A loose-leaf notebook according to claim 4, wherein: supporting legs (9) are arranged on the lower sides of the two ends of the base (6), and the supporting legs (9) are fixedly connected in the cover; the height of the supporting feet (9) corresponds to the height of the space.

6. A loose-leaf notebook according to claim 5, wherein: one side of each supporting leg (9) close to the first bottom plate (7) and one side of each supporting leg close to the second bottom plate (8) are respectively provided with a base plate (901), and the base plates (901) are positioned on the lower side of the base (6); two ends of the first bottom plate (7) are respectively provided with a first sliding plate (701), and the first sliding plates (701) are in sliding fit between the corresponding base plates (901) and the base (6); two ends of the second bottom plate (8) are respectively provided with a second sliding plate (801), and the second sliding plates (801) are in sliding fit between the corresponding base plates (901) and the base (6).

7. A loose-leaf notebook according to claim 4, wherein: the base is characterized in that a first plug connector (703) is arranged on the first bottom plate (7), a first lug (603) is arranged on the side wall of the base (6), a first jack (604) is arranged on the first lug (603), and the first plug connector (703) is inserted into the first jack (604).

8. A loose-leaf notebook according to claim 7, wherein: the second bottom plate (8) is provided with a second plug connector (803), the side wall of the base (6) is provided with a second lug (605), the second lug (605) is provided with a second jack (606), and the second plug connector (803) is inserted into the second jack (606).

9. A loose-leaf notebook according to claim 4, wherein: the opening and closing assembly comprises a driving piece (10), a slide way is arranged on the base (6), and the driving piece (10) is in sliding fit with the slide way; first bottom plate (7) on be equipped with first slide rail (702), second bottom plate (8) on be equipped with second slide rail (802), driving piece (10) on be equipped with first drive round (1001) and second drive round (1002), first drive round (1001) sliding fit in first slide rail (702), second drive round (1002) sliding fit in second slide rail (802), the pulling driving piece (10) can drive first bottom plate (7) and second bottom plate (8) relative slip or reverse slip.

10. A loose-leaf notebook according to claim 9, wherein: base (6) be close to one side of first bottom plate (7) and second bottom plate (8) be equipped with spout (601), first bottom plate (7) and second bottom plate (8) clearance fit be in the opening part of spout (601), spout (601) with first bottom plate (7) and second bottom plate (8) between form the slide.

11. A loose-leaf notebook according to claim 10, wherein: one end of the driving piece (10) is exposed out of the sliding groove (601) of the base (6); the end of the driving piece (10) is provided with a handle (1003).

12. A loose-leaf notebook according to claim 11, wherein: a limiting bulge (602) is arranged at the bottom of the sliding groove (601), and a limiting hole (1004) is arranged on the driving piece (10); the limiting protrusion (602) is in sliding fit in the limiting hole (1004).

13. A loose-leaf notebook according to claim 11, wherein: supporting legs (9) are arranged at two ends of the base (6) and at two sides of the sliding groove (601); the position of the driving piece (10) close to the handle (1003) is provided with a limiting step (1005), and the limiting step (1005) is limited on the inner side of the supporting foot (9).

14. A loose-leaf notebook according to claim 9, wherein: a first slot (15) and a second slot (17) are arranged on the base (6); the first bulge (704) is inserted in the first slot (15), and the second bulge (805) is inserted in the second slot (17).

15. A loose-leaf notebook according to claim 14, wherein: a supporting block (13) is arranged at the bottom of the sliding groove (601) of the base (6) and between the first protrusion (704) and the second protrusion (805), a first step (14) is arranged on one side, close to the first protrusion (704), of the supporting block (13), and a first slot (15) is formed between the first step (14) and the bottom of the sliding groove (601); a second step (16) is arranged on one side of the supporting block (13) close to the second protrusion (805), and a second slot (17) is formed between the second step (16) and the bottom of the sliding groove (601).

16. A loose-leaf notebook according to claim 15, wherein: the driving piece (10) is provided with an avoiding hole (18) for avoiding the supporting block (13), and the driving piece (10) is sleeved outside the supporting block (13).