CN111469581A

CN111469581A - Rotary movement and pen

Info

Publication number: CN111469581A
Application number: CN202010524513.8A
Authority: CN
Inventors: 黄立群; 莫学华
Original assignee: Ningbo Sanzhiyuan Technology Co ltd
Current assignee: Ningbo Sanzhiyuan Technology Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-07-31

Abstract

The application provides rotation type core and pen, includes: a threaded rod assembly including an axial through bore, the through bore including internal threads; the rotary rod assembly is positioned in the through hole of the threaded rod assembly and is rotatably connected with the threaded rod assembly, wherein the rotary rod assembly comprises an object placing groove arranged along the axial direction of the rotary rod assembly; and the push-pull refill assembly comprises at least one sliding protrusion, the push-pull refill assembly is positioned in the storage groove of the rotating rod assembly, and the at least one sliding protrusion penetrates through the storage groove to be in threaded connection with the internal thread of the threaded rod assembly. Through above-mentioned structure, can realize the rotation and go out the core to the length of control going out the core at every turn makes and writes convenience, efficient, and uses the last remaining refill short, and the refill high-usage, simultaneously, push-and-pull refill subassembly can be applicable to thicker refill, thereby can be fit for the drawing and use, and the simple structure of rotation type core, manufacturing process is simple, and is with low costs.

Description

Rotary movement and pen

Technical Field

The application relates to the technical field of writing tools, in particular to a rotary type movement and a pen.

Background

At present, pencils are mainly divided into two types, namely wooden pencils and push-out pencils. Before the wooden pencil is used, a cutter is needed to cut the penholder into a conical shape to expose the lead core, and in order to make the written lines thinner, the thicker lead core is also cut into the conical shape, so that the wooden pencil is inconvenient to use; meanwhile, in order to keep the thickness of a writing line and the exposed length of a lead, the penholder and the lead are required to be repeatedly cut, so that the writing efficiency is influenced; in addition, when the wooden pencil is used for a relatively short time, the wooden pencil cannot be held for writing, so that the utilization rate of the wooden pencil is only seventy percent or so in general, and the utilization rate is low.

The press type lead-out pencil is internally provided with a core assembly, the movement of a lead is controlled by the core assembly, and due to the structural characteristics of the core assembly, the press type lead-out pencil is not suitable for the lead with a softer diameter and a larger diameter, the larger the diameter of the lead is, the larger the required lead clamping force and the lead moving step length are, the larger the manufacturing difficulty is, the existing press type lead-out pencil is only suitable for the lead with the diameter of 0.5 mm to 1.2 mm, the lead is easy to break during writing and is not suitable for drawing; when the thumb is pressed each time, the length of the lead which is stepped out from the tip sleeve must be a certain length, the length of the lead which is required to be exposed cannot be obtained, and finally the residual lead is very long, so that the waste of the lead is great; in addition, the parts of the movement assembly are more, the manufacturing process is complex, and the cost is high.

Disclosure of Invention

In view of this, the embodiment of the application provides a rotary type movement and a pen, which solves the problems that a wooden pencil is inconvenient to use, low in utilization rate and low in writing efficiency; and the problem that the manufacturing process of the push lead-out pencil is complex, the push lead-out pencil is suitable for being thin, and the lead-out length is fixed every time.

According to one aspect of the present application, there is provided a rotary cartridge in accordance with an embodiment of the present application, including: a threaded rod assembly including an axial through bore, the through bore including internal threads; the rotary rod assembly is positioned in the through hole of the threaded rod assembly and is rotatably connected with the threaded rod assembly, wherein the rotary rod assembly comprises an object placing groove arranged along the axial direction of the rotary rod assembly; and the push-pull refill assembly comprises at least one sliding protrusion, the push-pull refill assembly is positioned in the storage groove of the rotating rod assembly, and the at least one sliding protrusion penetrates through the storage groove to be in threaded connection with the internal thread of the threaded rod assembly.

In one embodiment, the at least one sliding protrusion includes a first sliding protrusion and a second sliding protrusion, and the push-pull cartridge assembly includes: the pen core seat comprises a pen core hole, a groove hole communicated with the pen core hole and the first sliding bulge; the refill ejector rod comprises a second sliding protrusion, the refill ejector rod is assembled in the slotted hole of the refill seat, and the second sliding protrusion penetrates through the slotted hole of the refill seat; and the first spring is sleeved on the refill ejector rod and assembled in the slot of the refill seat together with the refill ejector rod.

In one embodiment, one end of the storage groove of the rotary rod assembly includes a blocking surface, and the push-pull pen core assembly further includes: the second spring is assembled in the storage groove of the rotary rod assembly and is positioned between the refill seat and the blocking surface of the rotary rod assembly.

In one embodiment, the cartridge holder comprises at least one first reverse-buckling protrusion located at an entrance of the slot of the cartridge holder for abutting against the cartridge ejector pin after being mounted to the slot.

In an embodiment, the rotating rod assembly includes at least one second inverted protrusion located at an entrance of the storage slot of the rotating rod assembly, and configured to abut against the push-pull pen core assembly after the push-pull pen core assembly is mounted to the storage slot.

In one embodiment, the threaded rod assembly includes a first threaded rod and a second threaded rod, the first threaded rod and the second threaded rod being removably connected.

According to another aspect of the present application, there is provided a pen including: the penholder is sleeved on the outer side of the threaded rod assembly; a nib including a through-hole; and a rotary movement as described in any of the above embodiments; wherein the pen point is assembled at one end of the pen holder.

In one embodiment, the pen further comprises: the cap is tightly matched with one end of the rotary rod assembly and sleeved on the outer side of the threaded rod assembly.

In one embodiment, the pen further comprises: and the decorative ring is sleeved on the outer side of the threaded rod assembly.

In one embodiment, the pen further comprises: and the pen core is in interference fit with the push-pull pen core assembly.

The embodiment of the application provides a pair of rotation type core and pen, through the protruding internal thread spiro union cooperation that passes rotary rod component's slip and put thing groove and screw rod component that makes push-and-pull refill subassembly to make push-and-pull refill subassembly and rotary rod component form sliding fit, make push-and-pull refill subassembly and screw rod component form screw-thread fit, the accessible rotates rotary rod component and drives push-and-pull refill subassembly and slide along the thing groove of putting of rotary rod component, thereby realizes rotatory play core. Through rotatory the play core, the length accessible rotatory angle control of going out the core at every turn, consequently, it can be arbitrary length to go out core length, makes to write conveniently, writes efficiently, and uses to last remaining refill short, and the refill high-usage, simultaneously, push-and-pull refill subassembly can be applicable to thicker refill to can be fit for the drawing and use, and the simple structure of rotation type core, manufacturing process is simple, and is with low costs.

Drawings

Fig. 1 is a schematic structural diagram of a rotary movement according to an embodiment of the present application.

Figure 2 shows a schematic cross-sectional view of the rotary cartridge of figure 1 in the direction a-a.

Fig. 3 is a partially enlarged view of the rotary deck of fig. 2 at section B.

Fig. 4 is a schematic structural view of a push-pull pen core assembly according to another embodiment of the present application.

FIG. 5A is an isometric view of a cartridge holder according to another embodiment of the present application.

FIG. 5B is a front view of a cartridge holder according to another embodiment of the present application.

FIG. 5C shows a cross-sectional view of the cartridge holder of FIG. 5B in the direction C-C.

Fig. 6A is a perspective view of a cartridge plunger according to another embodiment of the present application.

Fig. 6B is a front view of a refill ejector pin according to another embodiment of the present application.

Fig. 7A is an isometric view of a rotary lever assembly provided in accordance with another embodiment of the present application.

Fig. 7B is a front view of a rotating lever assembly according to another embodiment of the present application.

Fig. 7C shows a cross-sectional view of the rotary rod assembly of fig. 7B in the direction F-F.

Fig. 7D is an enlarged partial view of the rotary lever assembly of fig. 7A at section D.

Fig. 7E is an enlarged partial view of the rotary lever assembly of fig. 7C at section E.

Fig. 8A is a front view of a threaded rod assembly according to another embodiment of the present application.

Fig. 8B is an enlarged partial view of the threaded rod assembly of fig. 8A at section H.

Fig. 8C is an enlarged partial view of the threaded rod assembly of fig. 8A at section I.

FIG. 8D shows a cross-sectional view of the threaded rod assembly of FIG. 8A in the direction G-G.

Fig. 8E is an isometric view of a first threaded rod provided in accordance with another embodiment of the present application.

Fig. 8F is an isometric view of a second threaded rod provided in accordance with another embodiment of the present application.

Fig. 8G is an enlarged partial view of the first threaded rod of fig. 8E at portion J.

Fig. 8H is an enlarged partial view of the second threaded rod of fig. 8F at portion K.

Fig. 9A is a front view of a pen according to another embodiment of the present application.

FIG. 9B shows a cross-sectional view of the pen of FIG. 9A in the direction M-M.

FIG. 9C is an enlarged partial schematic view of the pen of FIG. 9B at section L.

FIG. 9D is an enlarged partial view of the pen of FIG. 9B at section N.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic structural diagram of a rotary movement according to an embodiment of the present application. Figure 2 shows a schematic cross-sectional view of the rotary cartridge of figure 1 in the direction a-a. Fig. 3 is a partially enlarged view of the rotary deck of fig. 2 at section B. As shown in fig. 1, 2 and 3, the rotary movement includes: the threaded rod assembly 1 comprises an axial through hole, and the through hole comprises internal threads; the rotating rod assembly 2 is positioned in the through hole of the threaded rod assembly 1 and is rotatably connected with the threaded rod assembly 1, wherein the rotating rod assembly 2 comprises an article placing groove 21 arranged along the axial direction of the rotating rod assembly; and the push-pull pen core assembly 3 comprises a first sliding protrusion 312, the push-pull pen core assembly 3 is positioned in the storage groove 21 of the rotating rod assembly 2, and the first sliding protrusion 312 penetrates through the storage groove 21 to be in threaded connection with the internal thread of the threaded rod assembly 1.

Specifically, the first sliding protrusion 312 penetrates through the article holding groove 21 and is in threaded fit with the internal thread of the screw rod assembly, so that the push-pull pen core assembly 3 and the rotary rod assembly 2 form a sliding fit, and the push-pull pen core assembly 3 and the screw rod assembly 1 form a threaded fit.

When threaded rod subassembly 1 is fixed, when rotating rotary rod subassembly 2 around the center pin of rotary rod subassembly 2, it rotates with threaded rod subassembly 1 relatively along with rotary rod subassembly 2 to put thing groove 21, the lateral wall of putting thing groove 21 can give first sliding protrusion 312 thrust, make push-and-pull refill subassembly 3 rotate with threaded rod subassembly 1 relatively along with putting thing groove 21, and simultaneously, because first sliding protrusion 312 passes the internal thread spiro union cooperation of putting thing groove 21 and threaded rod subassembly, so push-and-pull refill subassembly 3 is when rotating with threaded rod subassembly 1 relatively, first sliding protrusion 312 on the push-and-pull refill subassembly 3 can receive threaded rod subassembly 1's internal thread thrust, make push-and-pull refill subassembly 3 slide along rotary rod subassembly 2's thing groove 21 of putting, thereby realize rotatory play core. When the pen core is exposed out of a proper length, the rotating rod assembly 2 stops rotating, and when writing, the pressure of writing on the pen core is transmitted to the first sliding protrusion 312 of the push-pull pen core assembly 3, so that the first sliding protrusion 312 is abutted against the internal thread of the threaded rod assembly 1, and the pen core does not retract when writing. Through rotatory the play core, the length accessible rotatory angle control of going out the core at every turn, consequently, it can be arbitrary length to go out core length, makes to write conveniently, writes efficiently, and uses to last remaining refill short, and the refill high-usage, simultaneously, push-and-pull refill subassembly can be applicable to thicker refill to can be fit for the drawing and use, and the simple structure of rotation type core, manufacturing process is simple, and is with low costs. When writing, the rotary rod assembly 2 is rotated reversely, the pen core is driven by the push-pull pen core assembly 3 to be screwed into the storage groove 21 of the rotary rod assembly 2 along with the push-pull pen core assembly 3, so that the pen core is not exposed, and the pen core is not worn when being carried and is convenient to carry. The existing wooden pencil has the advantages that the pencil core cannot retract, the pencil cap matched with the pencil core can be specially manufactured in order to protect the pencil core from abrasion when the pencil is not used, the wooden pencil and the pencil cap are separated, the problem that the pencil cap is easy to lose is solved, and accordingly the use and carrying are inconvenient. And the rotation type core of this application need not to make the pen cap alone, and through rotatory play core and the reverse rotation retraction refill, can control whether the refill exposes, and use and convenient to carry have improved user's use and have experienced.

Fig. 4 is a schematic structural view of a push-pull pen core assembly according to another embodiment of the present application. FIG. 5A is an isometric view of a cartridge holder according to another embodiment of the present application. FIG. 5B is a front view of a cartridge holder according to another embodiment of the present application. FIG. 5C shows a cross-sectional view of the cartridge holder of FIG. 5B in the direction C-C. Fig. 6A is a perspective view of a cartridge plunger according to another embodiment of the present application. Fig. 6B is a front view of a refill ejector pin according to another embodiment of the present application. Push-and-pull refill subassembly 3 includes: the refill seat 31, the refill seat 31 comprises a refill hole 311, a slot hole 313 communicated with the refill hole 311 and a first sliding projection 312; a cartridge push rod 32 including a second sliding protrusion 321 and a push rod 322, the cartridge push rod 32 being fitted in the slot hole 313 of the cartridge holder 31, the second sliding protrusion 321 passing through the slot hole 313 of the cartridge holder 31; and a first spring 33 fitted around the top bar 322 of the cartridge top bar 32 and fitted in the groove hole 313 of the cartridge holder 31 together with the cartridge top bar 31.

Specifically, the cartridge hole 311 is used for mounting the cartridge, and the diameter of the through hole 315 communicating the cartridge hole 311 and the slot hole 313 is smaller than that of the cartridge hole 311 and the slot hole 313, so that the cartridge can abut against the end surface of the cartridge hole 311 close to the through hole 315, and the first spring 33 can abut against the end surface of the slot hole 313 close to the through hole 315. The top rod 322 of the refill top rod 32 is sleeved with the first spring 33 and then is assembled in the groove hole 313 of the refill seat 31, the front end of the top rod 322 extends into the through hole 315 through the groove hole 313, one end of the first spring 33 abuts against the end surface of the groove hole 313 close to the through hole 315, and the other end abuts against the side surface of the second sliding protrusion 321 of the refill top rod 32. The second sliding protrusion 321 of the cartridge ejector 32 passes through the slot 313 to be screwed with the threaded rod assembly 1. That is, the first sliding projection 312 and the second sliding projection 321 are simultaneously screw-engaged with the screw bar assembly 1.

When the threaded rod component 1 is fixed, when the rotating rod component 2 is rotated around the central shaft of the rotating rod component 2, the storage groove 21 rotates relative to the threaded rod component 1 along with the rotating rod component 2, the side wall of the storage groove 21 can provide thrust for the first sliding protrusion 312 and the second sliding protrusion 321, so that the push-pull pen core component 3 rotates relative to the threaded rod component 1 along with the storage groove 21, meanwhile, the first sliding protrusion 312 and the second sliding protrusion 321 penetrate through the storage groove 21 to be matched with the threaded rod component in a threaded manner, when the push-pull pen core component 3 rotates relative to the threaded rod component 1, the first sliding protrusion 312 and the second sliding protrusion 321 on the push-pull pen core component 3 can receive the thrust of the internal threads of the threaded rod component 1, the push-pull pen core component 3 slides along the storage groove 21 of the rotating rod component 2, and accordingly rotary core. When the pen core is exposed out of a proper length, the rotating rod assembly 2 stops rotating, and when writing, the pressure of writing on the pen core is transmitted to the first sliding protrusion 312 and the second sliding protrusion 321 of the push-pull pen core assembly 3, so that the first sliding protrusion 312 and the second sliding protrusion 321 are abutted against the internal thread of the threaded rod assembly 1, and the pen core does not retract when writing. And the distance between the first sliding protrusion 312 and the second sliding protrusion 321 can be adjusted by the first spring 33, when the first sliding protrusion 312 and the second sliding protrusion 321 are both abutted against the internal thread of the threaded rod assembly 1, the first spring 33 is compressed by the end surface of the slot 313 of the refill seat 31 close to the through hole 315 and the second sliding protrusion 321, so that a tension force is generated between the first sliding protrusion 312 and the second sliding protrusion 321, and the force of the first sliding protrusion 312 and the second sliding protrusion 321 abutted against the internal thread of the threaded rod assembly 1 is further increased, so that the refill is more stable and is not easy to retract during writing.

In one embodiment, the cartridge holder 31 includes a first reverse-hooking protrusion 314 at an entrance of the slot 313 of the cartridge holder 31 for abutting the cartridge ejector 32 after being mounted to the slot 313. The first reverse protrusion 314 forms a bottleneck shape of the slot 313 at the entrance position, so that the pen core push rod 32 is supported by the first reverse protrusion 314 after being installed in the slot 313, and is not easy to slide out from the entrance position of the slot 313.

It should be understood that the first reversed protrusion 314 may be a symmetrical protrusion located on two side walls of the slot 313 as shown in fig. 5A, 5B and 5C, may be a protrusion located on one side wall of the slot 313, or may be a plurality of protrusions located on one or two side walls of the slot 313, and the position and number of the protrusions are not particularly limited in the present application as long as the slot 313 forms a bottleneck shape at the entrance position. It should also be understood that the shape of the first reversed protrusion 314 may be the shape shown in fig. 5A, 5B and 5C, or may be other shapes as long as the groove hole 313 forms a bottleneck shape at the entrance position.

In one embodiment, the sectional shapes of the first sliding protrusion 312 and the second sliding protrusion 321 in the sectional view shown in fig. 5C correspond to the shape of the internal thread of the threaded rod assembly 1, that is, when the internal thread of the threaded rod assembly 1 is a rectangular thread, the sectional shapes of the first sliding protrusion 312 and the second sliding protrusion 321 in the sectional view shown in fig. 5C are also rectangular, when the internal thread of the threaded rod assembly 1 is a triangular thread, the sectional shapes of the first sliding protrusion 312 and the second sliding protrusion 321 in the sectional view shown in fig. 5C are also triangular, when the internal thread of the threaded rod assembly 1 is a trapezoidal thread, the sectional shapes of the first sliding protrusion 312 and the second sliding protrusion 321 in the sectional view shown in fig. 5C are also trapezoidal, so that the screw fitting gap formed by the first sliding protrusion 312 and the second sliding protrusion 321 and the internal thread of the threaded rod assembly 1 is smaller, therefore, the screw connection matching formed by the first sliding protrusion 312 and the second sliding protrusion 321 and the internal thread of the screw rod assembly 1 is more stable, and the refill is more stably screwed out when the refill is rotated out.

Fig. 7A is an isometric view of a rotary lever assembly provided in accordance with another embodiment of the present application. Fig. 7B is a front view of a rotating lever assembly according to another embodiment of the present application. Fig. 7C shows a cross-sectional view of the rotary rod assembly of fig. 7B in the direction F-F. Fig. 7D is an enlarged partial view of the rotary lever assembly of fig. 7A at section D. Fig. 7E is an enlarged partial view of the rotary lever assembly of fig. 7C at section E. Fig. 8A is a front view of a threaded rod assembly according to another embodiment of the present application. Fig. 8B is an enlarged partial view of the threaded rod assembly of fig. 8A at section H. Fig. 8C is an enlarged partial view of the threaded rod assembly of fig. 8A at section I. FIG. 8D shows a cross-sectional view of the threaded rod assembly of FIG. 8A in the direction G-G. Fig. 8E is an isometric view of a first threaded rod provided in accordance with another embodiment of the present application. Fig. 8F is an isometric view of a second threaded rod provided in accordance with another embodiment of the present application. Fig. 8G is an enlarged partial view of the first threaded rod of fig. 8E at portion J. Fig. 8H is an enlarged partial view of the second threaded rod of fig. 8F at portion K.

In an embodiment, as shown in fig. 8E, 8F, 8G and 8H, both ends of the through hole of the screw rod assembly 1 may include a section without internal threads, when the rotating rod assembly 2 is rotated until the first sliding protrusion 312 and the second sliding protrusion 321 on the push-pull pen core assembly 3 are separated from the internal threads of the screw rod assembly 1 and enter the section without internal threads of the screw rod assembly 1, the rotating rod assembly 2 may still rotate, but the first sliding protrusion 312 and the second sliding protrusion 321 on the push-pull pen core assembly 3 can only be pushed by the side wall of the storage slot 21, so that the push-pull pen core assembly 3 rotates together with the storage slot 21 and relatively rotates with the screw rod assembly 1, but since the first sliding protrusion 312 and the second sliding protrusion 321 are separated from the internal threads of the screw rod assembly 1, the push-pull pen core assembly 3 cannot be pushed by the internal threads of the screw rod assembly 1, so that the push-pull pen core assembly 3 cannot slide along, therefore, the rotary rod component 2 can rotate infinitely, and the damage to parts in the rotary machine core caused by rotation limitation can be avoided.

In an embodiment, as shown in fig. 7C, 7E and 3, one end of the storage slot of the rotary rod assembly 2 includes a blocking surface 25, and the push-pull pen core assembly 3 further includes: and a second spring 34, wherein the second spring 34 is arranged in the storage groove 21 of the rotary rod component 2 and is positioned between the refill seat 31 and the blocking surface 25. When the first sliding protrusion 312 and the second sliding protrusion 321 are separated from the internal thread of the threaded rod assembly 1 and enter the first unthreaded section 111 and the second unthreaded section 121, the second spring 34 is compressed by the push-pull cartridge assembly 3, so that the push-pull cartridge assembly 3 is pushed by the second spring 34, the rotating rod assembly 2 is rotated reversely, the first sliding protrusion 312 and the second sliding protrusion 321 of the push-pull cartridge assembly 3 can smoothly screw into the internal thread of the threaded rod assembly 1 under the action of the pushing force of the second spring 34, and therefore the threaded connection rotation with the threaded rod assembly 1 is achieved.

In one embodiment, as shown in fig. 8E, 8F and 3, when the first sliding projection 312 and the second sliding projection 321 disengage from the internal threads of the threaded rod assembly 1, enter the third unthreaded section 112 and the fourth unthreaded section 122, the first spring 33 is further compressed by the refill seat 31 and the second sliding protrusion 321, so that the refill seat 31 and the second sliding protrusion 321 are pushed by the first spring 33 to reversely rotate the rotating rod assembly 2, the second sliding protrusion 321 of the push-pull refill assembly 3 can be smoothly screwed into the internal thread of the screw rod assembly 1 under the pushing force of the first spring 33, and the second sliding protrusion 321 is pressed against by the first inverse-buckling protrusion 314, the second sliding protrusion 321 can drive the first sliding protrusion 312 on the refill seat 31 to smoothly screw into the internal thread of the screw rod assembly 1, thereby achieving the screw-coupling rotation of the first and second sliding

protrusions

312 and 321 with the screw bar assembly 1. Meanwhile, when the first sliding protrusion 312 and the second sliding protrusion 321 are disengaged from the internal thread of the threaded rod assembly 1 and enter the third unthreaded section 112 and the fourth unthreaded section 122, and the first spring 33 is further compressed by the cartridge holder 31 and the second sliding protrusion 321, the top rod 322 of the cartridge top rod 32 passes through the through hole 315 to apply a pushing force to the cartridge fitted in the cartridge hole 311, so that the cartridge is separated from the rotary cartridge, thereby realizing that the cartridge is disengaged from the rotary cartridge just before use. Wherein, the refill to be used up is the residual refill. After remaining refill breaks away from the rotation type core, can pack into refill hole 311 of refill seat 31 with reserve refill in the position that remaining refill breaks away from the rotation type core, when the antiport swivel spindle assembly 2, reserve refill is under push-and-pull refill subassembly 3's drive, along with push-and-pull refill subassembly 3 together screw in the thing groove 21 of putting of swivel spindle assembly 2, accomplish the refill replacement, refill replacement process is simple and convenient, has improved user's use and has experienced.

In one embodiment, as shown in fig. 7A and 7D, the rotating rod assembly 2 includes a second reverse protrusion 22 at an entrance of the storage slot 21 of the rotating rod assembly 2 for abutting against the push-pull pen core assembly 3 after being mounted to the storage slot 21. The second reverse protrusion 22 forms a bottleneck shape at the entrance position of the storage slot 21, so that the push-pull pen core assembly 3 is supported by the second reverse protrusion 22 after being installed in the storage slot 21, and is not easy to slide out from the entrance position of the storage slot 21.

It should be understood that the second reversed protrusion 22 may be one protrusion located on one side wall of the storage slot 21 as shown in fig. 7A and 7D, may be a symmetrical protrusion located on two side walls of the storage slot 21, or may be a plurality of protrusions located on one or two side walls of the storage slot 21, and the position and number of the protrusions are not particularly limited in the present application as long as the storage slot 21 forms a bottleneck shape at the entrance position. It should be further understood that the shape of the second reverse-locking protrusion 22 may be the shape shown in fig. 7A and 7D, or may be other shapes as long as the storage compartment 21 is formed in a bottleneck shape at the entrance position.

In one embodiment, as shown in fig. 8A, the screw rod assembly 1 includes a first threaded rod 11 and a second threaded rod 12, the first threaded rod 11 and the second threaded rod 12 are detachably connected, and the internal thread of the first threaded rod 11 and the internal thread of the second threaded rod 12 can be combined into a complete internal thread. Through making threaded rod assembly 1 include first threaded rod 11 and second threaded rod 12, can make the internal thread processing of threaded rod assembly 1 simpler to simplify the processing technology of threaded rod assembly 1, improve process velocity and qualification rate.

In one embodiment, as shown in fig. 8D, 8G and 8H, the first threaded rod 11 includes a snap projection 112, the second threaded rod 12 includes a snap recess 122, and the snap projection 112 and the snap recess 122 are in interference fit, so that the first threaded rod 11 and the second threaded rod 12 are assembled into the threaded rod assembly 1.

It should be understood that the manner in which the first threaded rod 11 and the second threaded rod 12 are assembled into the threaded rod assembly 1 may also be gluing, welding, riveting, or the like, as long as the first threaded rod 11 and the second threaded rod 12 can be assembled into the threaded rod assembly 1, and the manner in which the first threaded rod 11 and the second threaded rod 12 are assembled into the threaded rod assembly 1 is not particularly limited in the present application.

In one embodiment, as shown in fig. 3, 7A, 7E, 8G and 8H, the rotating lever assembly 2 includes a ring groove 23, the first threaded rod 11 includes a first semi-annular protrusion 113, the second threaded rod 12 includes a second semi-annular protrusion 123, and the first semi-annular protrusion 113 and the second semi-annular protrusion 123 are combined into a single annular protrusion and are matched with the ring groove 23, so that the rotating lever assembly 2 and the rotating lever assembly 1 form a coaxial rotating fit. The coaxial rotating fit of the rotating rod component 2 and the threaded rod component 1 enables the rotating rod component 2 to rotate more stably and smoothly and not to be blocked easily.

Fig. 9A is a front view of a pen according to another embodiment of the present invention, fig. 9B is a cross-sectional view of the pen of fig. 9A taken along a direction M-M, fig. 9C is an enlarged partial view of the pen of fig. 9B taken along a line L, fig. 9D is an enlarged partial view of the pen of fig. 9B taken along a line N, and as shown in fig. 9A, 9B and 9C, the present invention further provides a pen according to an embodiment including a barrel 4 in which the barrel 4 is fitted around an outside of a screw rod assembly 1, and a nib 5 in which the nib 5 includes a through hole, wherein the nib 5 is fitted to an end of the barrel 4.

In particular, the writing tip 5 includes a through hole for passing through the cartridge, making the cartridge more stable when writing. One end of the pen point 5 comprises an external thread, and the position where the pen holder 4 and the pen point 5 are assembled comprises an internal thread, so that the pen point 5 and the pen holder 4 are in threaded connection.

It should be understood that the connection mode of the pen tip 5 and the pen holder 4 may be gluing, welding, riveting, etc., as long as the pen tip 5 and the pen holder 4 can form a fixed connection, and the connection mode of the pen tip 5 and the pen holder 4 is not particularly limited in the present application.

In one embodiment, as shown in fig. 8C and 9D, the inner side of the barrel 4 includes an annular protrusion 41, the first threaded rod 11 includes a first semi-annular groove 115, the second threaded rod 12 includes a second semi-annular groove 125, the first semi-annular groove 115 and the second semi-annular groove 125 are combined into an annular groove, and form an interference fit with the annular protrusion 41, so that the first threaded rod 11 and the second threaded rod 12 are further combined tightly, and the coaxiality of the first threaded rod 11 and the second threaded rod 12 is improved.

In one embodiment, as shown in fig. 8B and 9C, the pen further comprises: and the decorative ring 7 is sleeved on the outer side of the threaded rod assembly. The first threaded rod 11 comprises a third semi-annular bulge 114, the second threaded rod 12 comprises a fourth semi-annular bulge 124, the third semi-annular bulge 114 and the fourth semi-annular bulge 124 are spliced into an annular bulge and form interference fit with the decoration ring 7, so that the first threaded rod 11 and the second threaded rod 12 are further spliced tightly, and the coaxiality of the first threaded rod 11 and the second threaded rod 12 is further improved.

In one embodiment, as shown in fig. 7E and 9C, the pen further comprises: cap 6, cap 6 tight fit is in rotary rod assembly 2 one end to the suit is in the screw rod assembly 2 outside. The cap 6 comprises an annular projection 61 on the inside. One end of the rotating rod assembly 2 includes an annular groove 24. The annular protrusion 61 of the cap 6 forms an interference fit with the annular groove 24 of the rotary rod assembly 2, so that the cap 6 and the rotary rod assembly 2 are fixedly connected. When cap 6 is rotated, rotary lever assembly 2 rotates together with cap 6.

It should be understood that the connection manner of the rotary rod assembly 2 and the cap 6 may also be gluing, welding, riveting, etc. as long as the rotary rod assembly 2 and the cap 6 can form a fixed connection, and the connection manner of the rotary rod assembly 2 and the cap 6 is not particularly limited in this application.

In one embodiment the pen further comprises: and the pen core 8 is in interference fit with the push-pull pen core assembly 3.

Specifically, the refill 8 can be a pencil refill, or can be an eyebrow refill or other refills, and the type of the refill is not specifically limited in the present application.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A rotary movement, comprising:

a threaded rod assembly including an axial through bore, the through bore including internal threads;

the rotary rod assembly is positioned in the through hole of the threaded rod assembly and is rotatably connected with the threaded rod assembly, wherein the rotary rod assembly comprises an object placing groove arranged along the axial direction of the rotary rod assembly; and

the push-pull refill assembly comprises at least one sliding protrusion, the push-pull refill assembly is located in the storage groove of the rotary rod assembly, and the at least one sliding protrusion penetrates through the storage groove and is in threaded connection with the internal thread of the threaded rod assembly.

2. A rotary cartridge according to claim 1, wherein the at least one sliding projection comprises a first sliding projection and a second sliding projection, and wherein the push-pull cartridge assembly comprises:

the pen core seat comprises a pen core hole, a groove hole communicated with the pen core hole and the first sliding bulge;

the refill ejector rod comprises a second sliding protrusion, the refill ejector rod is assembled in the slotted hole of the refill seat, and the second sliding protrusion penetrates through the slotted hole of the refill seat; and

the first spring is sleeved on the refill ejector rod and assembled in the slot of the refill seat together with the refill ejector rod.

3. The rotary cartridge of claim 2, wherein the receptacle end of the rotary rod assembly includes a stop surface, the push-pull cartridge assembly further comprising: the second spring is assembled in the storage groove of the rotary rod assembly and is positioned between the refill seat and the blocking surface of the rotary rod assembly.

4. A rotary cartridge according to claim 2, wherein the cartridge holder comprises at least one first undercut projection at an entrance of the slot of the cartridge holder for abutting the cartridge ejector pin after it is mounted to the slot.

5. The rotary deck according to claim 1, wherein the rotary lever assembly includes at least one second reverse protrusion at an entrance of the storage slot of the rotary lever assembly for abutting against the push-pull cartridge assembly after the push-pull cartridge assembly is mounted to the storage slot.

6. A rotary movement according to claim 1, wherein the threaded rod assembly comprises a first threaded rod and a second threaded rod, the first threaded rod and the second threaded rod being releasably connectable.

7. A pen, comprising:

the penholder is sleeved on the outer side of the threaded rod assembly;

a nib including a through-hole; and

a rotary cartridge according to any one of claims 1 to 6;

wherein the pen point is assembled at one end of the pen holder.

8. The pen of claim 7, further comprising: the cap is tightly matched with one end of the rotary rod assembly and sleeved on the outer side of the threaded rod assembly.

9. The pen of claim 7, further comprising a decorative ring that fits over the threaded rod assembly.

10. The pen of claim 7, further comprising:

and the pen core is in interference fit with the push-pull pen core assembly.