Pencil lead box

Abstract

The utility model provides a pencil lead box. The pencil lead box comprises a box body, a rotary cover and a sliding plate. The box body comprises a first hole and a limiting structure, and the first hole is formed in the first end of the box body and used for providing pencil leads; the limiting structure is arranged at the first end of the box body and avoids the first hole. The rotary cover is installed at the first end of the box body and comprises a second hole coaxial with the first hole and a driving groove, and the driving groove is formed in the surface, facing the box body, of the rotary cover. The sliding piece is arranged between the box body and the rotary cover and comprises a sliding plate and a sliding block, and the sliding plate moves on the limiting structure in a limited mode and can open and close the first hole. The sliding block is arranged on the sliding plate and can slide in the driving groove in a reciprocating mode so as to drive the sliding plate to move in a reciprocating mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of writing tools, in particular to a lead core box. BACKGROUND

[0002] The lead core box is a common pencil accessory for containing lead cores. The common lead core box is currently designed in a pull-off cap structure. When the lead core is taken out, the cap needs to be pulled off to take out the lead core. In the process of pulling off the cap, since the cap and the box body are respectively held by two hands, the lead core in the box is easily dropped out due to the improper force, causing damage to the lead core. In addition, the pull-off cap structure needs to separate the box body and the cap when the lead core is taken out, so that the lead cores in the box body are exposed, increasing the risk of damage to the lead core. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the present application is to provide a lead core box which is easy to operate and does not cause the lead core to drop out and be damaged when the lead core is taken out.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] According to one aspect of the present application, a lead core box is provided, comprising a box body, a rotating cap and a sliding member. The box body comprises: a first hole provided at a first end of the box body, the first hole being used to provide a lead core; and a limiting structure provided at the first end of the box body and avoiding the first hole. The rotating cap is installed at the first end of the box body, and comprises: a second hole coaxial with the first hole and allowing the lead core to pass through; and a driving groove provided on a surface of the rotating cap facing the box body. The sliding member is provided between the box body and the rotating cap, and comprises: a sliding plate limited to move in the limiting structure and capable of opening and closing the first hole; and a sliding block provided on the sliding plate and capable of reciprocating in the driving groove, thereby driving the sliding plate to reciprocate.

[0006] According to one embodiment of the present application, the driving groove comprises an opening end and a closing end, and the distance between the closing end and the axis of the second hole is less than the distance between the opening end and the axis of the second hole. When the sliding block moves to the opening end of the driving groove, the sliding plate completely opens the first hole; and when the sliding block moves to the closing end of the driving groove, the sliding plate completely closes the first hole.

[0007] According to one embodiment of the present application, the driving groove comprises a circular-arc-shaped groove, and the included angle between the line connecting the center line of the opening end and the axis of the second hole and the line connecting the center line of the closing end and the axis of the second hole is 30° to 150°.

[0008] According to one of the embodiments of the present application, the limiting structure comprises a limiting strip, which is protrudingly arranged on the surface of the box body facing the rotating cover, and the extending direction of the limiting strip is parallel to the moving direction of the sliding plate, for limiting the sliding plate.

[0009] According to one of the embodiments of the present application, the number of the limiting strips is two, and the two limiting strips are arranged in parallel and limit the sliding plate in the space between the two limiting strips.

[0010] According to one of the embodiments of the present application, the limiting structure comprises a limiting groove, and the sliding member further comprises a limiting block, which is arranged on the surface of the sliding plate away from the sliding block, and during the movement of the sliding plate, the limiting block is limited in the limiting groove.

[0011] According to one of the embodiments of the present application, the box body further comprises a rotation stopping block, the rotating cover is provided with an avoiding groove, the end of the avoiding groove is provided with a protrusion, the rotation stopping block is limited in the protrusion and can move in the avoiding groove by being separated from the protrusion.

[0012] According to one of the embodiments of the present application, the two ends of the avoiding groove are respectively provided with a protrusion, when the sliding plate is located at the position of opening the first hole, the rotation stopping block is limited in the protrusion of one end of the avoiding groove; when the sliding plate is located at the position of closing the first hole, the rotation stopping block is limited in the other protrusion of the other end of the avoiding groove.

[0013] According to one of the embodiments of the present application, the number of the sliding members is two, and the two sliding members are oppositely arranged and open and close the first hole by moving close to each other or moving away from each other.

[0014] According to one of the embodiments of the present application, the number of the driving grooves is two, one of the driving grooves drives one of the sliding members to slide, and the other driving groove drives the other sliding member to slide.

[0015] According to one of the embodiments of the present application, the driving groove comprises an opening end and a closing end, the distance between the closing end and the axis of the second hole is less than the distance between the opening end and the axis of the second hole; the line connecting the opening ends of the two driving grooves is perpendicular to the line connecting the closing ends of the two driving grooves.

[0016] According to one of the embodiments of the present application, the box body further comprises a cavity, the cavity is used for accommodating the lead core, the wall of the cavity at the first end of the box body is a tapered wall, and the tapered wall stops at the first hole.

[0017] According to one of the embodiments of the present application, a convex ring is arranged on the side wall of the rotating cover, and the first end of the box body is provided with an annular groove, the convex ring and the annular groove are matched and can move relative to each other in the circumferential direction.

[0018] According to one of the embodiments of the present application, the lead core box further comprises a box plug arranged at the second end of the box body, for supplementing the lead core to the box body.

[0019] From the above technical solution, the lead core box provided by the present application has the following advantages and positive effects:

[0020] The lead core box provided by the present application is provided with a first hole for providing lead core at the first end of the box body, and a sliding member is arranged between the box body and the rotating cover, which can open and close the first hole of the first end of the box body. By providing the lead core through the first hole, the excessive exposure of the lead core in the box body can be avoided, and the risk of damage caused by the falling of the lead core can be reduced.

[0021] The lead core box provided by the present application is provided with a driving groove on the rotating cover, when taking the lead core, the user only needs to rotate the rotating cover, the driving groove drives the sliding member to slide to open the first hole of the box body. After taking the core, the user reversely rotates the rotating cover, the driving groove drives the sliding member to slide to close the first hole of the box body. The operation of the user to take the lead core is simple, the user does not need to control the force, the damage of the lead core caused by excessive force will not occur, and the situation that the lead core cannot be taken caused by insufficient force will not occur.

[0022] The lead core box provided by the present application is provided with a limiting structure on the box body, which can limit the range of reciprocating movement of the sliding member, the sliding block of the sliding member can slide in the driving groove, so as to drive the sliding plate to move in the range of movement limited by the limiting structure, to open and close the first hole on the box body. When taking the lead core, the user does not need to separate the box body and the cover, and the damage caused by the falling of the lead core will not occur. BRIEF DESCRIPTION OF DRAWINGS

[0023] The various objectives, features and advantages of the present application will become more apparent by examining the following detailed description of preferred embodiments thereof taken in conjunction with the attached drawings. The drawings are merely schematic and are not drawn to scale. In the drawings, like reference numerals refer to like parts throughout the various views. Among others:

[0024] Figure 1 is a schematic view of the lead core box of the present application.

[0025] Figure 2 is a sectional view of Figure 1 .

[0026] Figure 3 is an enlarged view of I of Figure 2 .

[0027] Figure 4 is Figure 2 the enlarged view of II.

[0028] Figure 5 is a schematic view of the box body of the lead core box of the present application.

[0029] Figure 6 is Figure 5 a front view of the box body of the present application.

[0030] Figure 7 is Figure 6 a left view of the box body of the present application.

[0031] Figure 8 is Figure 7 a sectional view of the box body of the present application.

[0032] Figure 9 is a schematic view of the structure of the rotating cover of the present application.

[0033] Figure 10 is Figure 9 a schematic view of the rotating cover of the present application from another angle.

[0034] Figure 11 is Figure 9 a front view of the rotating cover of the present application.

[0035] Figure 12 is Figure 9 a top view of the rotating cover of the present application.

[0036] Figure 13 is Figure 9 an enlarged view of III.

[0037] Figure 14 is a schematic view of the structure of the sliding piece of the present application.

[0038] Figure 15 is Figure 14 a front view of the sliding piece of the present application.

[0039] Figure 16 is Figure 15 a top view of the sliding piece of the present application.

[0040] Figure 17 is Figure 15 a left view of the sliding piece of the present application.

[0041] Figure 18 is a schematic view of the structure of the box plug of the present application.

[0042] Figure 19 is Figure 18 a front view of the box plug of the present application.

[0043] Figure 20 is Figure 19 a sectional view of the box plug of the present application.

[0044] The reference signs are explained as follows:

[0045] 1 - lead core box

[0046] 10 - box body

[0047] 11 - first end

[0048] 12 - second end

[0049] 13 - recess

[0050] 20 - rotating cover

[0051] 21 - protrusion

[0052] 22 - containing space

[0053] 30 - sliding piece

[0054] 40 - box plug

[0055] 101 - first hole

[0056] 102 - limiting structure

[0057] 103 - rotation stopping block

[0058] 104 - cavity

[0059] 105 - tapered wall

[0060] 111 - annular groove

[0061] 121 - box protrusion ring

[0062] 201 - second hole

[0063] 202 - driving groove

[0064] 203 - avoiding groove

[0065] 204 - protrusion ring

[0066] 301 - sliding plate

[0067] 302 - sliding block

[0068] 303 - limiting block

[0069] 401 - plug protrusion ring

[0070] 402 - closed end

[0071] 403 - open end

[0072] 1021 - limiting strip

[0073] 1022 - limiting groove

[0074] 2021 - closed end;

[0075] 2022 - open end;

[0076] 2031 - protrusion;

[0077] 10211 - first limiting line;

[0078] 10212 - second limiting line;

[0079] 10221 - first limiting groove;

[0080] 10222 - second limiting groove. DETAILED DESCRIPTION

[0081] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art. Like reference numerals refer to like elements throughout the description. Detailed descriptions of structures, systems and steps are not necessary to understand the present disclosure, and therefore details of structures, systems and steps are not set forth herein in order to not obscure the disclosure.

[0082] In the following description of various example embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures, systems, and steps in which aspects of the present disclosure can be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps can be utilized and that structural and functional modifications can be made without departing from the scope of the present disclosure. Also, while the terms "over," "between," "inside" or the like can be used in the present description and claims to describe one aspect of the present disclosure relative to another, it is understood that such terms are intended to encompass different orientations of the example structures, systems, and steps described herein as shown in the figures. For example, in the figures, the example structures, systems, and steps can be inverted, so that for example, depending on the particular orientation, the example structures, systems, and steps described herein can be described as "over," "under," "between," "inside," etc., even though such regions can be oriented in different ways.

[0083] It is to be understood that the terms "including", "comprising", "consisting" and "having" and variations thereof when used in this specification and in the claims, shall not be construed as to be limiting in any way. For example, a process, method, system, product, or apparatus that comprises a list of steps or elements is not necessarily limited to those particular steps or elements but can include other steps or elements not expressly listed or inherent to such process, method, system, product, or apparatus.

[0084] Relative terms such as "lower" or "bottom" and "upper" or "top" can be used herein to describe one element's relationship to another element as illustrated in the Figures. It will be understood that relative terms are intended to include different orientations of the device in addition to the orientation depicted in the Figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. The exemplary term "lower" can therefore encompass both an orientation of "lower" and "upper," depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. The exemplary terms "below" or "beneath" can, therefore, encompass both an orientation of "below" and "above," depending on the particular orientation of the figure.

[0085] Referring to Figure 1 , Figure 2 and Figure 5 , the lead core box 1 of the present application comprises a box body 10, a rotating cover 20 and a sliding member 30 arranged between the box body 10 and the rotating cover 20. The box body 10 comprises a first hole 101 and a limiting structure 102, and has a first end 11 and a second end 12 arranged oppositely. The first hole 101 is arranged at the first end 11 of the box body 10, and is used to provide a lead core. The limiting structure 102 is arranged at the first end 11 of the box body 10, and avoids the first hole 101. The rotating cover 20 is installed at the first end 11 of the box body 10, and comprises a second hole 201 and a driving groove 202. The second hole 201 is coaxial with the first hole 101, and allows the lead core to pass through. The driving groove 202 is arranged on the surface of the rotating cover 20 facing the box body 10. The sliding member 30 comprises a sliding plate 301 and a sliding block 302. The sliding plate 301 is limited to move in the limiting structure 102, and can open and close the first hole 101. The sliding block 302 is arranged on the sliding plate 301, and can slide back and forth in the driving groove 202, thereby driving the sliding plate 301 to move back and forth.

[0086] The lead core box 1 of the present application is provided with a first hole 101 for providing lead cores at the first end 11 of the box body 10, and a sliding member 30 is arranged between the box body 10 and the rotating cover 20, which can open and close the first hole 101 at the first end 11 of the box body 10. The lead cores are provided through the first hole 101, which can avoid excessive exposure of the lead cores in the box body 10 and reduce the risk of damage caused by falling of the lead cores. The rotating cover 20 is provided with a driving groove 202, and the limiting structure 102 on the box body 10 can limit the range of reciprocating movement of the sliding member 30, and the sliding block 302 of the sliding member 30 can slide in the driving groove 202, thereby driving the sliding plate 301 to move within the range of movement limited by the limiting structure 102, so as to open and close the first hole 101 on the box body 10. When taking the lead cores, the user does not need to separate the box body 10 and the cover, but only needs to rotate the rotating cover 20, so that the driving groove 202 drives the sliding member 30 to slide to open the first hole 101 of the box body 10. After taking the lead cores, the user reversely rotates the rotating cover 20, so that the driving groove 202 drives the sliding member 30 to slide to close the first hole 101 of the box body 10. The lead core box 1 of the present application can avoid falling of the lead cores when taking the lead cores, and does not damage the lead cores.

[0087] In the present embodiment, the box body 10 further comprises a cavity 104 for accommodating the lead cores, and the wall of the cavity 104 at the first end 11 of the box body 10 is a tapered wall 105 which stops at the first hole 101. The cavity 104 for accommodating the lead cores is designed as the tapered wall 105 at the first end 11 of the box body 10, and the tapered wall 105 extends from the side wall of the cavity 104 to the first hole 101 and stops at the first hole 101, so that the lead cores in the cavity 104 of the box body 10 can move to the first hole 101 under the action of the tapered wall 105, and the lead cores can be poured out from the first hole 101 in time when the number of the lead cores in the cavity 104 is small. If the lead cores cannot be poured out from the first hole 101, it indicates that the lead cores in the cavity 104 of the box body 10 have been used up, and new lead cores need to be supplemented.

[0088] In the present embodiment, the lead core box 1 further comprises a plug 40 arranged at the second end 12 of the box body 10 for supplementing the lead cores to the box body 10. The second end 12 of the box body 10 is provided with a large opening and the plug 40 is arranged therein, so as to facilitate supplementing the lead cores and to realize that the cavity 104 of the box body 10 can accommodate as many lead cores as possible.

[0089] In the present embodiment, referring to Figure 3The side wall of the rotating cover 20 is provided with a convex ring 204, and the first end 11 of the box body 10 is provided with an annular groove 111, the convex ring 204 and the annular groove 111 are matched and can move relative to each other in the circumferential direction. The matching of the convex ring 204 and the annular groove 111 can make the rotating cover 20 rotate relative to the box body 10, and the annular groove 111 can limit the movement of the rotating cover 20 relative to the box body 10 in the axial direction of the box body 10 by limiting the movement of the convex ring 204 in the axial direction of the box body 10, so that the rotating cover 20 is easy and stable to operate when rotating relative to the box body 10 to open and close the first hole 101, and the lead core is further prevented from falling and being damaged.

[0090] In the embodiment, referring to Figure 4 , the outer side of the side wall of the box plug 40 is provided with a plug convex ring 401, and the inner side of the side wall of the second end 12 of the box body 10 is provided with a box convex ring 121, and the arc surface of the plug convex ring 401 and the arc surface of the box convex ring 121 are partially in contact to realize the installation of the box plug 40 on the second end 12 of the box body 10. When it is necessary to supplement the lead core, the plug convex ring 401 can pass over the box convex ring 121 due to the slight elasticity of the materials of the box plug 40 and the box body 10, so that the box plug 40 and the box body 10 are separated, and the lead core can be supplemented. In this way, when the lead core is supplemented, the box plug 40 can be smoothly installed on the box body 10, and after the box plug 40 is inserted into the box body 10, the box plug 40 can be firmly plugged on the second end 12 of the box body 10 during the use of the lead core box 1, and the problem of loose box plug 40 does not occur.

[0091] In the embodiment, the arc surface of the plug convex ring 401 and the arc surface of the box convex ring 121 are the same in shape. In some other embodiments, the arc surface of the plug convex ring 401 and the arc surface of the box convex ring 121 can also be different in shape, as long as they can be smoothly installed and fixed well.

[0092] In the embodiment, referring to Figures 5 to 8 , the limiting structure 102 includes a limiting strip 1021 which protrudes from the surface of the box body 10 facing the rotating cover 20, and the extending direction of the limiting strip 1021 is parallel to the movement direction of the sliding plate 301, and the limiting strip 1021 is used for limiting the sliding plate 301. Figure 2 The sliding member 30 is located between the box body 10 and the rotating cover 20, the sliding block 302 of the sliding member 30 is located in the driving groove 202 of the rotating cover 20, the sliding plate 301 can move in a plane perpendicular to the axis of the first hole 101, and the driving groove 202 drives the sliding block 302 to drive the sliding plate 301 to move towards or away from the first hole 101. In order to ensure that the sliding plate 301 moves in the predetermined plane in the predetermined direction, the limiting strip 1021 protrudes from the surface of the box body 10 to limit the sliding plate 301.

[0093] In the embodiment, the number of the limiting strips 1021 is two, and the two limiting strips 1021 are arranged in parallel and limit the slide plate 301 in the space between the two limiting strips 1021. The parallel arrangement of the two limiting strips 1021 can further limit the movement of the slide plate 301, and the limiting strips 1021 can also play a certain guiding role and guide the movement of the slide plate 301. The slide plate 301 moves in the space between the two limiting strips 1021, and the movement is smooth and accurate, and the slide plate 301 will not rotate, which can ensure the closing effect of the slide plate 301 on the first hole 101 and further avoid damage caused by the falling of the lead core.

[0094] In the embodiment, the limiting structure 102 further includes a limiting groove 1022, and the limiting block 303 is limited in the limiting groove 1022 during the movement of the slide plate 301. Figure 6 The limiting strip 1021 includes a first limiting strip 10211 and a second limiting strip 10212, and recesses 13 are arranged on both sides of the first limiting strip 10211 and the second limiting strip 10212. The first hole 101 is arranged between the first limiting strip 10211 and the second limiting strip 10212. The design of the recesses 13 can avoid the cooling shrinkage phenomenon caused by the local wall thickness during the injection molding of the product, thereby ensuring the surface quality of the product.

[0095] Figures 14 to 17 The structure of the slider 30 of the present application is shown, wherein the slider 30 includes, in addition to the slide plate 301 and the slide block 302 shown in Figure 2 The limiting block 303 is arranged on the surface of the slide plate 301 away from the slide block 302. In the embodiment, the orthogonal projection of the limiting block 303 on the surface of the slide plate 301 coincides with the orthogonal projection of the slide block 302 on the surface of the slide plate 301. In some other embodiments, the orthogonal projection of the limiting block 303 on the surface of the slide plate 301 can also partially overlap with the orthogonal projection of the slide block 302 on the surface of the slide plate 301. The orthogonal projection of the limiting block 303 on the surface of the slide plate 301 can also not coincide with or overlap with the orthogonal projection of the slide block 302 on the surface of the slide plate 301.

[0096] In the embodiment, the limiting structure 102 further includes a limiting groove 1022, and the limiting block 303 is limited in the limiting groove 1022 during the movement of the slide plate 301. Figures 5 to 8 In combination with Figures 14 to 17 During the movement of the slide plate 301, the limiting block 303 is limited in the limiting groove 1022. By limiting the limiting block 303 on the slider 30 through the limiting groove 1022 on the box body 10, the smooth movement of the slide plate 301 can be further ensured. In addition, the limiting groove 1022 can also play the role of a guide groove, and the limiting block 303 of the slider 30 can also play the role of a guide block. The guide block moves in the guide groove, thereby driving the movement of the slider 30 and realizing the opening and closing of the first hole 101.

[0097] In the embodiment, the limiting structure 102 further includes a limiting groove 1022, and the limiting block 303 is limited in the limiting groove 1022 during the movement of the slide plate 301. Figure 6The limiting groove 1022 includes a first limiting groove 10221 and a second limiting groove 10222, which are arranged between the two limiting strips 1021 and have the same center line along the length direction. The center lines of the first limiting groove 10221 and the second limiting groove 10222 both pass through the center of the first hole 101 and are respectively located at the upper and lower ends of the first hole 101. Figure 6 Therefore, the layout of the limiting strips 1021 and the limiting groove 1022 is symmetrical in the up-down direction and the left-right direction. Referring to Figure 6 The part where the first limiting groove 10221 is arranged can be referred to as the upper part, the part where the second limiting groove 10222 is arranged can be referred to as the lower part, the part where the first limiting strip 10211 is arranged can be referred to as the left part, and the part where the second limiting strip 10212 is arranged can be referred to as the right part.

[0098] In the embodiment, referring to Figures 9 to 13 The driving groove 202 includes an opening end 2022 and a closing end 2021. The distance between the closing end 2021 and the axis of the second hole 201 is less than the distance between the opening end 2022 and the axis of the second hole 201. When the slider 302 is located at the opening end 2022 of the driving groove 202, the sliding plate 301 completely opens the first hole 101; when the slider 302 is located at the closing end 2021 of the driving groove 202, the sliding plate 301 completely closes the first hole 101. In this way, when the rotating cover 20 rotates, the slider 302 of the sliding member 30 is driven in the driving groove 202, and the sliding plate 301 moves between the closing end 2021 and the opening end 2022, thereby realizing the opening and closing of the first hole 101 by the sliding member 30.

[0099] Referring to Figure 11 The space between the driving groove 202 and the convex ring 204 is the accommodation space 22 of the sliding member 30.

[0100] The rotating cover 20 further includes a convex block 21 arranged on the surface of the rotating cover 20 away from the box body 10. The surface of the convex block 21 can be designed as a concave curved surface connected to the second hole 201. The design of the concave curved surface can further prevent the lead core from being broken when the lead core is poured out of the second hole 201.

[0101] In the embodiment, the driving groove 202 includes a circular arc-shaped groove, which can make the slider 302 of the sliding member 30 move smoothly in the driving groove 202 without obstruction. The included angle between the line connecting the center line of the opening end 2022 and the axis of the second hole 201 and the line connecting the center line of the closing end 2021 and the axis of the second hole 201 is 30° to 150°, which can be 45°, 60°, 90°, 120°, etc. In the embodiment, the included angle between the line connecting the center line of the opening end 2022 and the axis of the second hole 201 and the line connecting the center line of the closing end 2021 and the axis of the second hole 201 is 90°.

[0102] In the embodiment, referring to Figure 6 , Figure 9 , Figure 12 and Figure 13 , the box body 10 further comprises a rotation-stopping block 103, the rotating cover 20 is provided with an avoiding slot 203, the end of the avoiding slot 203 is provided with a protrusion 2031, the rotation-stopping block 103 is limited to the protrusion 2031 and can be separated from the protrusion 2031 and reciprocate in the avoiding slot 203. The cooperation of the rotation-stopping block 103 and the protrusion 2031 can feedback the state of the first hole 101 being closed and opened, and the avoiding slot 203 reserves a certain space for the rotation of the rotation-stopping block 103.

[0103] In the embodiment, the two ends of the avoiding slot 203 are respectively provided with a protrusion 2031. When the sliding plate 301 is located at the position of opening the first hole 101, the rotation-stopping block 103 is limited to the protrusion 2031 at one end of the avoiding slot 203; when the sliding plate 301 is located at the position of closing the first hole 101, the rotation-stopping block 103 is limited to the other protrusion 2031 at the other end of the avoiding slot 203. The two ends of the avoiding slot 203 are provided with the protrusions 2031, which can ensure that the sliding member 30 is stable when it is at the position of opening or closing the first hole 101. That is, when the sliding member 30 is at the position of opening the first hole 101, the rotation-stopping block 103 is limited to the protrusion 2031 at one end of the avoiding slot 203, so that the automatic rotation of the rotating cover 20 can be avoided without external force. Similarly, when the sliding member 30 is at the position of closing the first hole 101, the rotation-stopping block 103 is limited to the protrusion 2031 at one end of the avoiding slot 203, so that the automatic rotation of the rotating cover 20 can be avoided without external force.

[0104] Among them, the number of avoiding slots 203 is two, and the number of rotation-stopping blocks 103 is one, so that the assembly is simple, and the rotation-stopping block 103 can be installed to any avoiding slot 203.

[0105] In the embodiment, referring to Figure 2 , the number of sliding members 30 is two, and the two sliding members 30 are oppositely arranged and open and close the first hole 101 by approaching or moving away from each other. Figure 2 It is shown that the two sliding members 30 contact each other and close the first hole 101. According to Figure 2 , the two sliding members 30 are respectively called upper sliding member 30 and lower sliding member 30. In combination with Figure 16 , the planar parts in the side walls of the sliding plates 301 of the two sliding members 30 contact each other, so that the sliding plates 301 of the upper and lower sliding members 30 respectively shield the upper and lower parts of the first hole 101, so that the sliding member 30 closes the first hole 101.

[0106] When the first hole 101 needs to be opened, the rotating cover 20 can be rotated, at this time, the driving groove 202 of the rotating cover 20 can drive the slider 302 of the sliding piece 30 to move in the direction away from each other, according to Figure 2 , the upper sliding piece 30 moves upward, and the lower sliding piece 30 moves downward, so as to realize the separation of the two sliding pieces 30, and open the first hole 101. At this time, the lead core can be poured out from the first hole 101 through the second hole 201.

[0107] In the embodiment, referring to Figure 2 , Figure 11 and Figure 12 , the number of the driving grooves 202 is two, one of the driving grooves 202 drives one of the sliding pieces 30 to slide, and the other driving groove 202 drives the other sliding piece 30 to slide. In cooperation with the sliding piece 30, two driving grooves 202 are designed, which can facilitate the movement of the sliding piece 30, and realize the opening and closing of the first hole 101.

[0108] In the embodiment, the line between the opening ends 2022 of the two driving grooves 202 is perpendicular to the line between the closing ends 2021 of the two driving grooves 202. In this way, the structure is simple, the design of the driving groove 202 is simple, and the driving effect can be good.

[0109] Figures 18 to 20 The structure of the box plug 40 of the present application is shown, wherein the box plug 40 has a closed end 402 and an open end 403, the cross-sectional area of the closed end 402 is larger than that of the open end 403, so that a bent side wall of the box plug 40 is formed, and the plug protrusion 2031 ring 401 is arranged at the position of the side wall close to the open end 403. Combined with Figure 2 , the outer diameter of the closed end 402 of the box plug 40 is substantially the same as the outer diameter of the box body 10, and the outer side surface of the open end 403 of the box plug 40 cooperates with the inner wall of the second end 12 of the box body 10.

[0110] The lead core box 1 of the present application also has a second embodiment, which has substantially the same structure as the lead core box 1 of the embodiment of Figures 1 to 20 in the basic structure. Therefore, in the following description of the second embodiment of the lead core box 1, the structures already described in the embodiment of Figures 1 to 20 will not be repeated. In addition, the same reference signs are marked for the structures which are the same as the structures of the lead core box 1 described in the embodiment of Figures 1 to 20 . Therefore, in the following description of the embodiment, mainly the differences between the lead core box 1 of the embodiment of Figures 1 to 20 will be described. Among them, the lead core box 1 of the second embodiment is mainly that the limiting structure 102 of the box body 10 of the lead core box 1 is different. Figures 1 to 20In one embodiment, the limiting structure 102 includes a limiting strip 1021 and a limiting groove 1022. In this second embodiment, only the limiting strip 1021 is provided, and the limiting groove 1022 is not provided, so the corresponding sliding member 30 does not have a limiting block 303. The sliding member 30 can move in the space between the two limiting strips 1021 under the drive of the driving groove 202, thereby opening and closing the first hole 101.

[0111] The lead core box 1 of this application also has a third embodiment, the lead core box 1 of the third embodiment and Figures 1 to 20 Compared to the lead core box 1 of the third embodiment, it has a substantially the same structure in its basic construction. Therefore, in the following description of the lead core box 1 of this third embodiment, the description will not be repeated. Figures 1 to 20 The structure has already been described in the implementation method. Additionally, regarding... Figures 1 to 20 The same reference numerals are used for structures with the same structure as the lead core box 1 described in the embodiments. Therefore, in the following description of this embodiment, the structure will be mainly described as similar to the lead core box 1. Figures 1 to 20 The differences between the lead core box 1 in this third embodiment and the previous one will be explained. The main difference in this third embodiment is the limiting structure 102 of the box body 10. Figures 1 to 20 In one embodiment, the limiting structure 102 includes a limiting strip 1021 and a limiting groove 1022. In this third embodiment, only the limiting groove 1022 is provided, and the limiting strip 1021 is not provided. The limiting block 303 of the sliding member 30 is limited in the limiting groove 1022, and the sliding member 30 can move under the drive of the driving groove 202, thereby realizing the opening and closing of the first hole 101.

[0112] The lead core box 1 of this application also has a fourth embodiment, the lead core box 1 of the fourth embodiment and Figures 1 to 20 Compared to the lead core box 1 of the previous embodiment, it has a substantially the same structure in its basic construction. Therefore, in the following description of the lead core box 1 of this fourth embodiment, the description will not be repeated. Figures 1 to 20 The structure has already been described in the implementation method. Additionally, regarding... Figures 1 to 20 The same reference numerals are used for structures with the same structure as the lead core box 1 described in the embodiments. Therefore, in the following description of this embodiment, the structure will be mainly described as similar to the lead core box 1. Figures 1 to 20 The differences between the lead core box 1 in this fourth embodiment and the previous one will be explained. The main difference in this fourth embodiment is the difference in the limiting structure 102 of the lead core box 1. Figures 1 to 20In one embodiment, the limiting structure 102 includes a limiting strip 1021 and a limiting groove 1022, with two limiting strips 1021 and two limiting grooves 1022. In this fourth embodiment, one limiting strip 1021 and one limiting groove 1022 can be provided. One slider 30 is limited by the limiting strip 1021, and the other slider 30 is limited by the limiting groove 1022. The slider 30 moves under the drive of the driving groove 202, thereby opening and closing the first hole 101.

[0113] The lead core box 1 of this application also has a fifth embodiment, the lead core box 1 of the fifth embodiment and Figures 1 to 20 Compared to the lead core box 1 of the previous embodiment, it has a substantially the same structure in its basic construction. Therefore, in the following description of the lead core box 1 of this fifth embodiment, the description will not be repeated. Figures 1 to 20 The structure has already been described in the implementation method. Additionally, regarding... Figures 1 to 20 The same reference numerals are used for structures with the same structure as the lead core box 1 described in the embodiments. Therefore, in the following description of this embodiment, the structure will be mainly described as similar to the lead core box 1. Figures 1 to 20 The differences between the lead core box 1 in this fifth embodiment and the previous one will be explained. The main difference in this fifth embodiment is the difference in the limiting structure 102 of the lead core box 1. Figures 1 to 20 In this embodiment, the limiting structure 102 includes a limiting strip 1021 and a limiting groove 1022, and both limiting strips 1021 can limit the movement of any one of the sliding members 30. In this fifth embodiment, the length of the limiting strip 1021 can be shortened so that one limiting strip 1021 restricts the movement of only one sliding member 30. For example, see... Figure 6 and Figure 2 The length of limiter 10211 is shortened, only the upper slider 30 is displayed; the length of limiter 2 10212 is shortened, only the lower slider 30 is restricted. In other words, Figure 6 Remove the lower half of limit switch 10211 and the upper half of limit switch 10212. Alternatively, you can... Figure 6 The upper half of the first limiter 10211 and the lower half of the second limiter 10212 are removed, so that the first limiter 10211 only displays the lower slider 30, and the second limiter 10212 only restricts the upper slider 30.

[0114] The lead core box 1 of this application also has a sixth embodiment, the lead core box 1 of the sixth embodiment and Figures 1 to 20 Compared to the lead core box 1 of the previous embodiment, it has a substantially the same structure in its basic construction. Therefore, in the following description of the lead core box 1 of this sixth embodiment, the description will not be repeated. Figures 1 to 20 The structure has already been described in the implementation method. Additionally, regarding... Figures 1 to 20The same structure of the lead core box 1 described in the embodiments is marked with the same reference signs. Therefore, in the following description of the embodiments, the differences between the lead core box 1 of the embodiments are mainly described. Figures 1 to 20 The lead core box 1 of the sixth embodiment is mainly different from the lead core box 1 of the fifth embodiment in the number of the sliding member 30 and the driving groove 202. In the fifth embodiment, the number of the sliding member 30 and the driving groove 202 is two, and each sliding member 30 covers only half of the first hole 101 when the sliding member 30 is in the position of closing the first hole 101. In the sixth embodiment, the number of the sliding member 30 and the driving groove 202 is one, and the sliding plate 301 of the sliding member 30 covers the whole first hole 101 when the sliding member 30 is in the position of closing the first hole 101. Figures 1 to 20 Figure 2 Figure 14 Figure 16 The sliding plate 301 of the sliding member 30 can be extended to cover the part of the first hole 101, so that one sliding member 30 can cover the whole first hole 101 when the sliding member 30 is in the position of closing the first hole 101.

[0115] The lead core box 1 of the seventh embodiment of the present application is basically the same as the lead core box 1 of the sixth embodiment in the basic structure. Therefore, in the following description of the lead core box 1 of the seventh embodiment, the structures that have been described in the description of the sixth embodiment will not be repeated. In addition, the same structure of the lead core box 1 described in the sixth embodiment is marked with the same reference signs. Therefore, in the following description of the embodiments, the differences between the lead core box 1 of the embodiments are mainly described. Figures 1 to 20 The lead core box 1 of the seventh embodiment is mainly different from the lead core box 1 of the sixth embodiment in the number of the avoiding groove 203. In the sixth embodiment, the number of the avoiding groove 203 is two. In the seventh embodiment, the number of the avoiding groove 203 is one. Figures 1 to 20 Figures 1 to 20 Figures 1 to 20 Figures 1 to 20

[0116] In summary, the lead core box of the present application comprises a box body, a rotating cover and a sliding member. The first hole for providing the lead core is arranged on the first section of the box body, and the sliding member is arranged between the box body and the rotating cover, which can open and close the first hole of the first end of the box body. The lead core is provided through the first hole, which avoids the excessive exposure of the lead core in the box body. The rotating cover is provided with a driving groove, and when the lead core is taken, the user only needs to rotate the rotating cover, and the driving groove drives the sliding member to slide to open the first hole of the box body. After the lead core is taken, the user reversely rotates the rotating cover, and the driving groove drives the sliding member to slide to close the first hole of the box body. The operation of the user to take the lead core is simple, and the user does not need to control the force, which will not cause the damage of the lead core due to the excessive force, and will not cause the situation that the lead core cannot be taken due to the insufficient force.

[0117] ​​​​​​​It can be understood that the various embodiments / embodiments provided by the utility model can be combined with each other without contradiction, which will not be illustrated one by one here.

[0118] In the above exemplary embodiments, the lead core box provided by the utility model is described by taking the application in writing tools as an example. Those skilled in the art can understand that various modifications, additions, substitutions, deletions or other changes can be made to the specific embodiments in order to apply the related designs of the utility model to other types of devices, and these changes are still within the scope of the principle of the lead core box provided by the utility model.

[0119] It should be noted that the lead core boxes shown in the drawings and described in the specification are only a few examples of many lead core boxes that can employ the principles of the utility model. It should be clearly understood that the principles of the utility model are by no means limited to any details or any components of the lead core boxes shown in the drawings or described in the specification.

[0120] In the embodiments of the utility model, the terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0121] In the description of the embodiments of the utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the utility model.

[0122] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "certain embodiments", and the like is intended to mean that the particular feature, structure, material, or characteristic being described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearance of the phrases "in one embodiment", "in some embodiments", "in certain embodiments", and the like in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the described particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0123] The above only is preferred embodiment of the application, and is not used to limit the application, for those skilled in the art, the application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A lead core box, characterized in that, include: The box body includes: A first hole is provided at the first end of the box body, and the first hole is used to provide a lead core; A limiting structure is provided at the first end of the box body and avoids the first hole; A rotating cover is mounted on the first end of the housing, the rotating cover comprising: The second hole is coaxial with the first hole and allows the lead core to pass through; A driving groove is disposed on the surface of the rotating cover facing the housing; a sliding member is disposed between the housing and the rotating cover, the sliding member comprising: The sliding plate is limited to the limiting structure and can open and close the first hole; A slider is disposed on the slide plate and can slide back and forth in the drive groove, thereby driving the slide plate to reciprocate.

2. The lead core box as described in claim 1, characterized in that, The driving groove includes an open end and a closed end, and the distance between the closed end and the axis of the second hole is less than the distance between the open end and the axis of the second hole; When the slider moves to the open end of the drive groove, the slide plate fully opens the first hole; when the slider moves to the closed end of the drive groove, the slide plate fully closes the first hole.

3. The lead core box as described in claim 2, characterized in that, The driving groove includes an arc-shaped groove, and the angle between the line connecting the center line of the open end and the axis of the second hole and the line connecting the center line of the closed end and the axis of the second hole is 30° to 150°.

4. The lead core box as described in claim 1, characterized in that, The limiting structure includes a limiting strip, which protrudes from the surface of the box body facing the rotating cover. The extending direction of the limiting strip is parallel to the movement direction of the slide plate, and is used to limit the slide plate.

5. The lead core box as described in claim 4, characterized in that, The number of limiting strips is two, and the two limiting strips are arranged in parallel, confining the slide plate in the space between the two limiting strips.

6. The lead core box as described in claim 1, characterized in that, The limiting structure includes a limiting groove, and the slider also includes a limiting block. The limiting block is disposed on the surface of the slide plate opposite to the slider, and during the movement of the slide plate, the limiting block is limited to the limiting groove.

7. The lead core box as described in claim 1, characterized in that, The box body also includes an anti-rotation block, the rotating cover is provided with a relief groove, the end of the relief groove is provided with a protrusion, the anti-rotation block is limited to the protrusion and can disengage from the protrusion to reciprocate in the relief groove.

8. The lead core box as described in claim 7, characterized in that, A protrusion is provided at each of the two ends of the clearance groove. When the slide is in the position where the first hole is open, the anti-rotation block is limited to a protrusion at one end of the clearance groove; When the slide is in the position where the first hole is closed, the anti-rotation block is limited to another protrusion at the other end of the clearance groove.

9. The lead core box as described in claim 1, characterized in that, The number of the two sliders is two, and the two sliders are arranged opposite each other, and the first hole is opened and closed by moving closer to each other or further away from each other.

10. The lead core box as described in claim 9, characterized in that, The number of driving grooves is two, one of which drives one of the sliders to slide, and the other driving groove drives the other slider to slide.

11. The lead core box as described in claim 10, characterized in that, The driving groove includes an open end and a closed end. The distance between the closed end and the axis of the second hole is less than the distance between the open end and the axis of the second hole. The line connecting the open ends of the two driving grooves is perpendicular to the line connecting the closed ends of the two driving grooves.

12. The lead core box as described in any one of claims 1 to 11, characterized in that, The box body also includes a cavity for accommodating the lead core. The wall of the cavity at the first end of the box body is a conical wall, which terminates at the first hole.

13. The lead core box as described in any one of claims 1 to 11, characterized in that, A raised ring is provided on the side wall of the rotating cover, and an annular groove is provided at the first end of the box body. The raised ring and the annular groove are adapted to each other and can move relative to each other in the circumferential direction.

14. The lead core box as described in any one of claims 1 to 11, characterized in that, It also includes a plug, which is disposed at the second end of the box body and is used to replenish the lead core into the box body.

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