Automatic compensation type pencil
By designing an automatic compensation pencil with a moving mechanism and limiting components, and using springs and clips to automatically adjust the lead length, the problem of repeatedly pressing the keycap in existing mechanical pencils is solved, achieving convenient and continuous writing and lead protection.
Patent Information
- Application Number
- CN202520312216.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Current mechanical pencils require repeated pressing of the keycap to adjust the tip length when the lead is short, which affects the smoothness of writing.
An automatic compensation pencil was designed. Through the cooperation of a moving mechanism and a limiting component, the lead length is automatically adjusted to avoid repeated pressing of the keycap.
It achieves automatic compensation of pen lead length in short periods of time to maintain writing continuity. The structure is simple and convenient, prevents pen lead breakage, and is suitable for ballpoint pen refills.
Smart Images
Figure CN223877771U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to writing tool technical field, specifically relates to a kind of automatic compensation formula pencil. BACKGROUND
[0002] Automatic pencil, i.e. after pressing pressure release, spring restores original position pencil. Ordinary automatic pencil adopts pencil core pipe and the lead sending movable assembly for conveying and clamping pencil core inside fixed side, the key cap of pressing automatic pencil end, can the length of lead head of pencil tip position be adjusted to the length of easy to use, the key cap of existing automatic pencil end needs to be pressed repeatedly after short core, so that pencil core extends pencil tip, influence the coherence of user's writing, thus need a kind of automatic compensation formula pencil, when pencil core is shorter, automatically compensate pencil core, need not press key cap repeatedly. SUMMARY
[0003] The summary portion of the present application is used to introduce the concept in a brief form, which will be described in detail in the following specific embodiment portion. The summary portion of the present application is not intended to identify key features or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0004] In order to solve the technical problems mentioned in the background part, some embodiments of the present application provide an automatic compensation formula pencil, which comprises a pencil core pipe, a pencil head mechanism arranged on the pencil core pipe, a first mounting slot fixedly arranged on the pencil core pipe, a guide pipe fixedly arranged on the first mounting slot, a movable mechanism arranged on the pencil core pipe and the first mounting slot, and a pencil core penetratingly arranged on the guide pipe, the movable mechanism and the pencil head mechanism. The pencil head mechanism comprises a pencil head body, a second mounting slot fixedly arranged on the pencil head, a silica gel damping block fixedly arranged on the second mounting slot, a first through hole fixedly arranged on the pencil head body, a second through hole fixedly arranged on the silica gel damping block, a first guide slot fixedly arranged on the silica gel damping block, and a first limiting component fixedly arranged on the pencil core pipe and the pencil head body.
[0005] Specifically, the first limiting component comprises a first sliding groove fixedly arranged on the pencil head body, a second sliding groove fixedly arranged on the pencil head body, a first limiting ring fixedly arranged on the pencil head body, and a second limiting ring fixedly arranged on the pencil core pipe.
[0006] Specifically, the movable mechanism comprises a first spring having one end fixedly arranged on the pencil head body, a first clamping piece fixedly arranged on the other end of the first spring, a second clamping piece fixedly arranged on the other end of the first spring and symmetrically arranged with the first clamping piece, a second guide slot fixedly arranged on the first clamping piece, a third guide slot fixedly arranged on the second clamping piece, and a second limiting component fixedly arranged on the pencil core pipe, the first clamping piece and the second clamping piece.
[0007] Specific, the second limiting component includes fixedly arranged on the first clamping piece first clamping groove, fixedly arranged on the first clamping piece first half ball groove, fixedly arranged on the second clamping piece second clamping groove, fixedly arranged on the second clamping piece second half ball groove, fixedly arranged on the refill tube third limiting ring, rolling in the first half ball groove and with the inner wall of the refill tube contact first ball, rolling in the second half ball groove and with the inner wall of the refill tube contact second ball.
[0008] Specific, the pen head body is provided with first inclined plane and second inclined plane.
[0009] Specific, the first clamping piece and the second clamping piece exist gap.
[0010] Specific, the first spring is a compression spring.
[0011] The beneficial effects of the utility model are:
[0012] (1) the utility model discloses simple structure, convenient to use, does not need user to press key cap continuously, when the refill is shorter, paper will contact the second inclined plane of pen head body, paper will exert force to pen head body, makes pen head body move to the tail of refill tube direction, first limiting ring is away from second limiting ring simultaneously, and second limiting ring and second sliding groove are opposite to slide, and pen head body sliding will continue to extrude first spring, and the elasticity of first spring increases, and then the clamping force of first clamping piece and second clamping piece to refill is greater, and the friction between first clamping piece and second clamping piece and refill is greater than the friction between silica gel damping block and refill, so the refill will not move, and pen head body and silica gel damping block will slide relative to refill, and the front end of refill will partially extend pen head body, and because pen head will often lift and contact paper during writing, so when pen head body and paper are in contact, first spring will push pen head body reset, first limiting ring and second limiting ring contact, and in the process of resetting, because the compression degree of first spring reduces, and the elasticity reduces, so the clamping force of first clamping piece and second clamping piece to refill also reduces, and the friction between silica gel damping block and refill is greater than the friction between first clamping piece and second clamping piece and refill, and pen head body and silica gel damping block move will drive refill to move together, realize the function of automatic compensation.
[0013] (2) be provided with first guide groove and second guide groove, and refill is inserted conveniently.
[0014] (3) pen head body and silica gel damping block are respectively provided with first through hole and second through hole, and first through hole and second through hole are connected head to tail, and when refill passes through first through hole and second through hole, pen head body and silica gel damping block can limit refill, prevent refill from breaking under stress. BRIEF DESCRIPTION OF DRAWINGS
[0015] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The illustrations, together with the description, serve to explain the application, but are not intended to limit the application in any way.
[0016] In addition, throughout the drawings, same or similar reference numerals are used to denote same or similar elements. It should be understood that the drawings are schematic, and elements and elements are not necessarily drawn in proportion.
[0017] In the drawings:
[0018] Figure 1 is a front view of the utility model;
[0019] Figure 2 is Figure 1 is a line section view of A-A in the middle;
[0020] Figure 3 is Figure 2 is a line section view of B-B in the middle;
[0021] Figure 4 is Figure 3 is a local enlarged view of C in the middle;
[0022] Figure 5 is Figure 3 is a local enlarged view of D in the middle;
[0023] Figure 6 is Figure 3 is a local enlarged view of E in the middle. DETAILED DESCRIPTION
[0024] Embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the scope of protection of the present disclosure.
[0025] It should also be noted that, for ease of description, only parts related to the utility model are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.
[0026] It should be noted that the "first", "second", and the like concepts mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.
[0027] It should be noted that the modification of "one", "a plurality of" mentioned in the present disclosure is illustrative but not restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".
[0028] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.
[0029] Referring to Figures 1-6 The utility model discloses an automatic compensation type pencil, including the pencil core pipe 1, the pencil head mechanism 2 of being established on the pencil core pipe, the first installation slot 3 of being fixed in the pencil core pipe, the guide pipe 4 of being fixed in the first installation slot, the movable mechanism 5 of being established on the pencil core pipe and the first installation slot, the pencil core 6 of being established in the guide pipe and movable mechanism and the pencil head mechanism, the pencil head mechanism includes the sliding of the pencil head body 21, the second installation slot 22 of being fixed in the pencil head, the silica gel damping block 23 of being fixed in the second installation slot, the first through -hole 24 of being fixed in the pencil head body, the second through -hole 25 of being fixed in the silica gel damping block, the first guide slot 26 of being fixed in the silica gel damping block, the first limit component 27 of being fixed in the pencil core pipe and the pencil head body, the pencil core pipe is cylindrical, the first installation slot is cylindrical through slot, and the pencil core pipe is penetrated, and the guide pipe is fixed in the first installation slot, and is fixedly connected with the inner wall of the pencil core pipe, and the guide pipe is equipped with the through -hole, and the diameter is slightly larger than the pencil core diameter, can reduce the shaking amplitude of pencil core, prevents the pencil core from shaking and breaking greatly, the movable mechanism is used for clamping the pencil core, and is matched with the pencil head mechanism, realizes the automatic compensation function of pencil core, the pencil head body is conical, and the pencil core passes through the first through -hole and the second through -hole, and the silica gel damping block has greater friction with the pencil core, and the first through -hole and the second through -hole are connected head to tail, when the pencil core passes through the first through -hole and the second through -hole, the pencil head body and the silica gel damping block can limit the pencil core, prevent the pencil core from breaking under stress, the first guide slot is conical slot, and the diameter of the side close to the pencil head body is smaller, and the diameter of the side of the pencil head body is larger, can be conveniently inserted into the pencil core, and the first limit component is used to limit the moving distance of the pencil head body.
[0030] Specifically, the first limit component includes the first sliding groove 271 fixed on the pencil head body, the second sliding groove 272 fixed on the pencil head body, the first limit ring 273 fixed on the pencil head body, and the second limit ring 274 fixed on the pencil core tube. The first sliding groove and the second sliding groove are connected head to tail to form a stepped sliding groove with the pencil head body. The first sliding groove is attached to the inner wall of the pencil core tube, and the second sliding groove is attached to the second limit ring. In the initial state, the first limit ring is in contact with one side of the second limit ring. When the pencil head body is pushed, the pencil core tube slides relative to the first sliding groove, and the second limit ring slides relative to the second sliding groove. The first limit ring moves away from the second limit ring. When the connection between the second sliding groove and the first sliding groove moves to one side of the second limit ring, the pencil head body is limited and cannot continue to move.
[0031] Specifically, the moving mechanism comprises a first spring 51 fixed at one end on the pen head body, a first clamping piece 52 fixed at the other end of the first spring, a second clamping piece 53 fixed at the other end of the first spring and symmetrical to the first clamping piece, a second guide groove 54 fixed on the first clamping piece, a third guide groove 55 fixed on the second clamping piece, and a second limiting assembly 56 fixed on the first clamping piece, the second clamping piece and the refill tube; the first spring is a compression spring and is always in a compressed state; the first clamping piece and the second clamping piece are used for clamping the refill; the second guide groove and the third guide groove are both semicircular conical grooves and can form a complete conical groove after being combined; the second guide groove and the third guide groove are relatively long, facilitating the insertion of the refill; the second limiting assembly is used for limiting the movement of the second clamping piece and the third clamping piece and cooperating with the first spring and the pen head body to clamp and release the refill, thereby realizing the function of automatically compensating the refill.
[0032] Specifically, the second limiting assembly comprises a first clamping groove 561 fixed on the first clamping piece, a first semispherical groove 562 fixed on the first clamping piece, a second clamping groove 563 fixed on the second clamping piece, a second semispherical groove 564 fixed on the second clamping piece, a third limiting ring 565 fixed on the refill tube, a first rolling ball 566 rolling in the first semispherical groove and in contact with the inner wall of the refill tube, and a second rolling ball 567 rolling in the second semispherical groove and in contact with the inner wall of the refill tube; the first clamping groove and the second clamping groove are both half polygonal grooves; and a complete polygonal groove is formed after being combined.
[0033] Specifically, the pen head body is provided with a first inclined surface 211 and a second inclined surface 212.
[0034] Specifically, a gap exists between the first clamping piece and the second clamping piece.
[0035] Specifically, the first spring is a compression spring.
[0036] Working principle: in the initial state, the first spring is in a pre-compressed state, the first limiting ring on the pen head body is in contact with the second limiting ring, and the first spring exerts force on the first and second clamping pieces, so that the first and second clamping pieces move towards the tail of the ink tube, the movement of the first and second clamping pieces drives the first and second balls to move along the inclined surface of the third limiting groove, and the third limiting groove pushes the first and second balls to move towards the ink core axis, that is, the first and second clamping pieces clamp the ink core, and the silica gel damping block can prevent the ink core from retracting into the pen head body when writing, at this time, the friction between the first and second clamping pieces and the ink core is smaller than the friction between the silica gel damping block and the ink core, and when the part of the ink core extending out of the pen head body is used up during writing, the paper will contact the second inclined surface of the pen head body, and the paper will exert force on the pen head body, so that the pen head body moves towards the tail of the ink tube, at this time, the first limiting ring moves away from the second limiting ring, and the second limiting ring slides relative to the second sliding groove, and the sliding of the pen head body continues to press the first spring, so that the elastic force of the first spring increases, and the clamping force of the first and second clamping pieces on the ink core is greater, at this time, the friction between the first and second clamping pieces and the ink core is greater than the friction between the silica gel damping block and the ink core, so the ink core does not move, and the pen head body and the silica gel damping block slide relative to the ink core, and the front end of the ink core extends out of the pen head body, and because the pen head is often lifted during writing and is not in contact with the paper, the first spring pushes the pen head body to reset when the pen head body is not in contact with the paper, the first limiting ring and the second limiting ring are in contact, and during the resetting process, the compression degree of the first spring decreases, the elastic force decreases, and the clamping force of the first and second clamping pieces on the ink core also decreases, so the friction between the silica gel damping block and the ink core is greater than the friction between the first and second clamping pieces and the ink core, and the movement of the pen head body and the silica gel damping block drives the ink core to move, thereby realizing the function of automatic compensation.
[0037] Meanwhile, the structure of the utility model can be made into the specification of d1 ink core, and used as a refill of a ball pen.
[0038] The above description is only some preferred embodiments of the present disclosure and a description of the technical principles applied. Those skilled in the art should understand that the utility model range involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the utility model concept. For example, the above features and the technical features disclosed in the embodiments of the present disclosure (but not limited to) with similar functions are replaced with each other to form a technical solution.
Claims
1. A self-compensating pencil, characterized by: The utility model provides a refill pen head mechanism, including refill pipe (1), the pen head mechanism (2) of being located on refill pipe, first installation slot (3) is fixed in refill pipe, guide pipe (4) is fixed in first installation slot, the movable mechanism (5) of being located on refill pipe and first installation slot, refill (6) is equipped with in guide pipe and movable mechanism and pen head mechanism, the pen head mechanism includes slidingly being located in pen head body (21), second installation slot (22) is fixed in pen head, silica gel damping block (23) is fixed in second installation slot, first through -hole (24) is fixed in pen head body, second through -hole (25) is fixed in silica gel damping block, first guide slot (26) is fixed in silica gel damping block, first limit component (27) is fixed in refill pipe and pen head body.
2. A self-compensating pencil according to claim 1, characterized in that: The first limit component includes first sliding groove (271) fixed in pen head body, second sliding groove (272) fixed in pen head body, first limit ring (273) fixed in pen head body, second limit ring (274) fixed in refill pipe.
3. A self-compensating pencil according to claim 1, characterized in that: The movable mechanism includes first spring (51) one end fixed in pen head body, first clamping piece (52) fixed in the other end of first spring, second clamping piece (53) fixed in the other end of first spring and symmetric with first clamping piece, second guide slot (54) fixed in first clamping piece, third guide slot (55) fixed in second clamping piece, second limit component (56) fixed in refill pipe and first clamping piece and second clamping piece.
4. A self-compensating pencil according to claim 3, characterized in that: The second limit component includes first clamping groove (561) fixed in first clamping piece, first half ball groove (562) fixed in first clamping piece, second clamping groove (563) fixed in second clamping piece, second half ball groove (564) fixed in second clamping piece, third limit ring (565) fixed in refill pipe, first ball (566) rollingly being located in first half ball groove and being in contact with the inner wall of refill pipe, second ball (567) rollingly being located in second half ball groove and being in contact with the inner wall of refill pipe.
5. A self-compensating pencil according to claim 1, wherein: The pen head body is equipped with first inclined plane (211) and second inclined plane (212).
6. A self-compensating pencil according to claim 3, wherein: The first clamping piece and the second clamping piece have a gap.
7. A self-compensating pencil according to claim 3, wherein: The first spring is a compression spring.