CN114889360A

CN114889360A - Compasses

Info

Publication number: CN114889360A
Application number: CN202210580256.9A
Authority: CN
Inventors: 应海宁
Original assignee: Ningbo Haiwen Stationery Co ltd
Current assignee: Ningbo Haiwen Stationery Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-08-12

Abstract

The invention provides a compasses, which comprises a pen stand body and a stitch body which are mutually hinged and connected, wherein the pen stand body is connected with a pen cap, the inner side wall of the pen cap is movably sleeved with a sleeve lock catch suitable for mounting a pen, and the sleeve lock catch deforms through relative movement with the pen cap to lock or unlock the pen; the stitch body is connected with a needle shell, a needle body and a guide head are installed in the needle shell, the needle body comprises a needle head, the guide head is provided with a guide hole for installing the needle head, and part of the needle head extends out of the guide hole during drawing. According to the invention, the sleeve lock catch capable of mounting the pen is arranged in the pen sleeve of the pen foot body, so that the contact surface between the sleeve lock catch and the pen is large when the pen is locked, the pen is prevented from shifting or shaking during drawing, the guide head is arranged between the needle body and the needle shell of the pin body, the needle head is wrapped by the guide head during drawing, the situation that the needle body shakes during drawing can be prevented, the pin and the pen foot with the structure can jointly increase the stability during drawing, and the drawing precision is improved.

Description

Compasses

Technical Field

The invention relates to the technical field of stationery, in particular to compasses.

Background

The compasses generally comprise a pen foot for drawing circles or arcs and a pin for positioning on paper, the compasses on the existing market are used for drawing by installing a pen on the pen foot, the pen foot is generally used for locking the pen in the pen foot by screwing a screw, the screw is contacted with the local position of the pen during locking, the pen is easy to shift or shake during drawing, in addition, the needle head of the pin of the compasses on the existing market is also generally locked by the screw, and the shake is easy to occur during drawing.

Disclosure of Invention

In order to solve at least one of the problems, the invention provides a compass, which comprises a pen foot body and a stitch body which are mutually hinged, wherein the pen foot body is connected with a pen cap, the inner side wall of the pen cap is movably sleeved with a sleeve lock catch suitable for installing a pen, the sleeve lock catch deforms through relative movement with the pen cap to lock or unlock the pen, and the outer wall of the pen is abutted against the inner wall of the sleeve lock catch during locking; the stitch body is connected with the needle shell, install needle body and direction head in the needle shell, the needle body includes the syringe needle, the direction head is equipped with the confession the guiding hole of syringe needle installation, the needle shell is equipped with supplies part direction head and part the syringe needle stretches out the export of needle shell, during the drawing, part the syringe needle stretch out in the guiding hole.

Optionally, the guiding head is movably connected with the needle shell in the up-down direction, when drawing, the guiding head contacts the paper and moves upwards relative to the needle shell to enable the needle head to protrude from the guiding hole, and the guiding head moves upwards relative to the needle shell to have a limit position so as to limit the depth of the needle head inserted into the paper.

Optionally, the needle body further comprises a needle tail connected to the upper end of the needle head, and the needle tail is connected with the needle shell.

Optionally, the needle further comprises a return spring sleeved outside the needle head, and the upper end and the lower end of the return spring are respectively abutted to the needle tail and the guide head.

Optionally, first fixture blocks are arranged on two sides of the outer wall of the needle tail, and the needle shell is provided with clamping holes matched with the first fixture blocks.

Optionally, still include with the joint piece that the needle shell is connected, the backshank be equipped with joint piece complex recess, the recess inner wall is equipped with the second fixture block, the backshank be equipped with second fixture block complex draw-in groove.

Optionally, the sleeve lock catch is rotatably connected with the pen cap, and an outer side wall of the sleeve lock catch is connected with an inner side wall of the pen cap in an abutting manner.

Optionally, the radius of curvature of the inner side wall of the pen cap gradually decreases in the rotational locking direction of the sleeve lock.

Optionally, the size range of the inner hole of the sleeve lock catch is 7.3 mm-8.3 mm.

Optionally, the outer wall of the sleeve lock catch is provided with a shifting piece for driving the sleeve lock catch to rotate relative to the pen cap, and a window for moving the shifting piece is formed in the side wall of the pen cap.

Compared with the prior art, the compasses provided by the invention have the advantages that the sleeve lock catch capable of mounting the pen is arranged in the pen cap of the pen foot body, so that the contact surface between the sleeve lock catch and the pen is large when the pen is locked, the pen is prevented from shifting or shaking during drawing, the guide head is arranged between the needle body and the needle shell of the needle foot body, the needle head is wrapped by the guide head during drawing, the shaking condition of the needle body can be prevented during drawing, the stability during drawing can be jointly increased by the needle foot and the pen foot of the structure, the drawing precision is improved, the pen can be fixed by the sleeve lock catch, the damage mark generated at the local part of the pen can be prevented, and the problem that the hand pain occurs when the locking force of a user is caused by the locking of a screw structure for the conventional compasses can be solved.

Drawings

FIG. 1 is a view showing the construction of a compass according to an embodiment of the present invention;

FIG. 2 is a structural diagram of a stitch of the compass when not in use according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view of a stitch of the compass according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a stitch of the compass according to the embodiment of the present invention;

FIG. 5 is a first structural diagram of a pen foot of the compass according to the embodiment of the present invention;

fig. 6 is a second structural diagram of the compasses pen foot of the embodiment of the invention.

Description of reference numerals:

1. a stitch body; 2. a needle shell; 21. an outlet; 22. a clamping hole; 23. a positioning table; 3. a needle body; 31. a needle head; 32. needle tail; 321. a first clamping block; 322. a groove; 323. a second fixture block; 4. a guide head; 41. a guide hole; 5. a return spring; 6. a clamping block; 61. a card slot; 62. positioning plates; 7. a pen foot body; 8. a pen cap; 81. a first limit table; 82. a window; 9. locking the sleeve; 91. a second limit table; 92. a shifting sheet; 93. and (4) opening.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the normal use of a product.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The embodiment of the invention provides a compass, which is shown by combining fig. 1 to 6 and comprises a pen stand body 7 and a pin body 1 which are mutually hinged and connected, wherein the pen stand body 7 is connected with a pen cap 8, a sleeve lock catch 9 suitable for installing a pen is movably sleeved on the inner side wall of the pen cap 8, the sleeve lock catch 9 deforms through relative movement with the pen cap 8 to lock or unlock the pen, and the outer wall of the pen is abutted against the inner wall of the sleeve lock catch 9 during locking; stitch body 1 is connected with needle shell 2, install needle body 3 and direction head 4 in the needle shell 2, needle body 3 includes syringe needle 31, direction head 4 is equipped with the confession the guiding hole 41 of syringe needle 31 installation, needle shell 2 is equipped with the confession part direction head 4 and part syringe needle 31 stretches out the export 21 of needle shell 2, during the drawing, part syringe needle 31 stretch out in guiding hole 41.

The sleeve lock catch 9 can be locked by deformation through rotation or by deformation through up-and-down movement in the pen cap 8; the pen can be locked on the pen foot when the sleeve lock catch 9 is locked, and the pen foot can be unlocked when the sleeve lock catch 9 is unlocked, so that the pen can be taken down; the sleeve lock catch 9 can deform under the action of external force, and when the relative position of the sleeve lock catch 9 and the pen cap 8 changes, the pen cap 8 can extrude the sleeve lock catch 9, so that the inner diameter of the sleeve lock catch 9 is reduced, and the pen is clamped; the sleeve lock catch 9 is provided with an opening 93 on the ring direction, when the sleeve lock catch 9 is unlocked, the size of the opening 93 is larger, the inner diameter of the sleeve lock catch 9 is larger, when the sleeve lock catch 9 is locked, the size of the opening 93 is smaller, and the inner diameter of the sleeve lock catch 9 is smaller; the inner wall of the sleeve lock catch 9 is a circular arc surface, and the contact surface between the inner wall of the sleeve lock catch 9 and the outer wall of the pen is large during locking, so that the pen is not easily crushed; the sleeve lock catch 9 is communicated up and down so as to facilitate the installation of pens with various lengths and ensure the universality.

During drawing, the outer wall of the guide head 4 is abutted against the inner wall of the outlet 21 or the gap between the outer wall and the inner wall of the guide hole 41 is very small, and the outer wall of the needle head 31 is abutted against the inner wall of the guide hole 41 or the gap between the outer wall and the inner wall of the guide hole is very small, so that the shaking of the needle body 3 can be effectively prevented.

The compasses in this embodiment, set up the sleeve hasp 9 that can install the pen in the pen socket 8 of foot of a writing brush body 7, make the contact surface between sleeve hasp 9 and the pen when locking the pen big, the pen aversion or the shake when preventing to draw, set up direction head 4 between needle body 3 of stitch body 1 and needle shell 2, direction head 4 wraps syringe needle 31 during drawing, the condition of needle body 3 shake appears when preventing to draw, the stitch of this kind of structure and the stationarity when foot can increase the drawing jointly, improve the precision of drawing, sleeve hasp 9 fixed pen can also prevent to produce the scar at a local, also can solve the painful condition of hand appears when conventional compasses are locked with screw structure and lead to user locking power.

Optionally, the pen cap 8 and the pen stand body 7 are integrally formed by injection molding of a plastic part or by die casting of a metal part, the integrally formed design enables the pen cap 8 to be firmly connected to the pen stand body 7, installation steps are saved, and production efficiency is improved; needle shell 2 sets up with stitch body 1 integrated into one piece, and needle shell 2 and stitch body 1 are by the integrative injection moulding of working of plastics or by the integrative die-casting of metalwork shaping, and integrated into one piece's design makes needle shell 2 can firmly connect in stitch body 1, and practices thrift the installation step, improves production efficiency.

Optionally, as shown in fig. 1, 2, 3, and 4, the guiding head 4 is movably connected to the needle housing 2 in the up-down direction, in the drawing, the guiding head 4 contacts the paper and moves upward relative to the needle housing 2 to protrude the needle 31 from the guiding hole 41, and the guiding head 4 moves upward relative to the needle housing 2 has a limit position to limit the depth of the needle 31 inserted into the paper.

Wherein, the up-down direction refers to a direction consistent with the length direction of the needle body 3; the limit position of the guide head 4 moving upwards relative to the needle shell 2 can be limited by arranging a limit table in the needle shell 2 to limit the maximum position of the guide head 4 moving upwards, or the limit table is arranged on the needle body 3 to limit the maximum position of the guide head 4 moving upwards, or an independent limit block is arranged between the guide head 4 and the needle shell 2 or the needle body 3 to limit the maximum position of the guide head 4 moving upwards; the guide head 4 is always abutted with the paper surface in the drawing process; the needle shell 2, the guide head 4 and the needle body 3 are coaxially arranged, so that the guide head 4 can smoothly move vertically and vertically.

When the needle is not used, the guide head 4 moves downwards under the action of external force or self gravity, so that the needle body 3 can be hidden in the guide head 4, and the sharp corner of the needle head 31 is prevented from injuring a user; during drawing, the guide head 4 firstly contacts the paper, then the guide head 4 is stressed to move upwards, the larger the force of a user pressing the compasses downwards, the larger the distance of the upward movement of the guide head 4 is, namely the different upward movement distances of the guide head 4 are determined by the different pressures, and the extending length of the needle head 31 is also determined, and the maximum length of the needle head 31 which can extend out of the guide head 4 is the maximum position of the upward movement of the guide head 4 to the top.

In the compasses in the embodiment, the distance of the needle head 31 of the needle body 3 extending out of the guide head 4 is controlled by the up-and-down movement of the guide head 4, and the limit position of the upward movement of the guide head 4 is set, so that the extending length of the needle head 31 can be effectively controlled, the compasses can be operated by a user under a large pressure during drawing, and the diameter of a hole formed in a paper surface and twisted by the needle head 31 can be controlled within a certain size due to the limited extending length of the needle head 31, and the phenomenon that the hole is too large is prevented; in addition, the extending and extending operation of the needle head 31 is realized by changing the position between the guide head 4 and the needle shell 2, the whole process is completely silent, and the special attention is promoted.

Alternatively, as shown in fig. 2 and 3, when not in use, the needle 31 is hidden in the guide hole 41.

The guide head 4 can be pushed downwards by the force of a spring to reset and can also reset by the gravity of the guide head. When not using, guide head 4 moves down and resets, can hide syringe needle 31 in guiding hole 41 completely, and hidden syringe needle 31 can not stab the user, has the function of preventing the hand protector, and the security performance is high.

Optionally, as shown in fig. 4, the maximum depth of the needle 31 inserted into the paper surface is 0.5mm, that is, the maximum length of the needle 31 extending out of the guide head 4 is 0.5mm, and by setting this length, it is possible to ensure that the hole formed by twisting the needle 31 on the paper surface is very small, so as to achieve the purpose of not damaging the paper, and it is also possible to ensure that the needle 31 is firmly fixed on the paper surface, thereby ensuring stable drawing; no matter how strong the user uses, the needle head 31 can only extend out 0.5mm at most, so the diameter of the hole penetrating out of the paper is very small, the hole is not easy to be seen, the hole is very small, the paper is not damaged, and the coil surface can be ensured to be neat during examination.

Optionally, as shown in fig. 1, fig. 2 and fig. 3, the needle body 3 further includes a needle tail 32 connected to the upper end of the needle head 31, and the needle tail 32 is connected to the needle housing 2; the needle body 3 is connected to the needle housing 2 via the needle tail 32, so that the guide head 4 has a movable gap between the needle head 31 and the needle housing 2.

Optionally, as shown in fig. 3, the needle guide device further includes a return spring 5 sleeved outside the needle 31, and upper and lower ends of the return spring 5 are respectively abutted to the needle tail 32 and the guide head 4.

The reset spring 5 can push the guide head 4 to reset, so that the guide head 4 can automatically reset, and the safety is higher; when the needle is not used, the guide head 4 moves downwards under the action of the spring force of the reset spring 5, so that the needle body 3 is hidden in the guide head 4; during drawing, the guide head 4 is firstly contacted with paper, then the guide head 4 moves upwards, and the needle head 31 is exposed from the guide head 4 and inserted into the paper for positioning.

Optionally, as shown in fig. 3, first stoppers 321 are disposed on two sides of an outer wall of the needle tail 32, and the needle housing 2 is provided with a stopper hole 22 engaged with the first stoppers 321.

Wherein, the needle body 3 and the needle shell 2 realize the joint through the cooperation of first fixture block 321 with card hole 22 and are connected, firm in connection, and the card hole 22 that runs through 2 walls of needle shell can conveniently dismantle needle body 3 to external force acts on first fixture block 321, makes first fixture block 321 break away from in card hole 22, thereby makes things convenient for the change of needle body 3.

Optionally, as shown in fig. 2 and fig. 3, the needle device further includes a clamping block 6 connected to the needle housing 2, the needle tail 32 is provided with a groove 322 engaged with the clamping block 6, a second clamping block 323 is provided on an inner wall of the groove 322, and the needle tail 32 is provided with a clamping groove 61 engaged with the second clamping block 323.

Wherein, recess 322 sets up the middle part position at backshank 32, and recess 322 and the cooperation of joint piece 6 to mutually support through second fixture block 323 and draw-in groove 61, in order to ensure the straightness that hangs down of needle body 3 in needle shell 2, also further play the fixed action to needle body 3, prevent drawing in-process needle body 3 off tracking, ensure drawing stability and the degree of accuracy.

Optionally, as shown in fig. 3, a positioning plate 62 is disposed on the top of the clamping block 6, and the needle housing 2 is provided with a positioning table 23 abutting against the positioning plate 62.

The positioning piece 62 is in a circular sheet shape, the positioning table 23 is in a circular ring shape, and the positioning piece 62 can be abutted against the positioning table 23 arranged on the inner wall of the needle shell 2 when being embedded into the needle shell 2 from the upper end, so that the clamping block 6 is prevented from moving down to be sunk into the needle shell 2 when being assembled, the needle body 3 can be further ensured to be firmly connected with the needle shell 2, and the position of the needle body 3 in the needle shell 2 can be limited; the needle body 3 has a play space in the up-down direction relative to the needle housing 2 to prevent the stitch structure from being locked.

Optionally, as shown in fig. 1, 5, and 6, the sleeve lock 9 is rotatably connected to the pen cap 8, and an outer side wall of the sleeve lock 9 is connected to an inner side wall of the pen cap 8 in an abutting manner; the size of the whole inner hole of the sleeve lock catch 9 is changed through the operation of rotating the sleeve lock catch 9, the inner side wall of the pen cap 8 is always in contact with the outer side wall of the sleeve lock catch 9, the clamping surface acting on the pen is ensured to be as large as possible, the structure is more compact, the pen cap 8 does not need to be long, and the pen can be stably clamped.

Optionally, as shown in fig. 5, the arc radius of the inner side wall of the pen cap 8 gradually decreases in the rotational locking direction of the sleeve lock 9; the inner hole of the pen cap 8 is not a perfect circle, the arc line of the inner hole is in an involute shape, and the size of the inner hole of the sleeve lock catch 9 is gradually reduced under the extrusion of the pen cap 8 in the process that the sleeve lock catch 9 rotates in the rotation locking direction until the pen is locked; when the sleeve lock catch 9 is rotated reversely, the size of the inner hole of the sleeve lock catch 9 is gradually increased until the unlocking is finished, and the pen can be taken out from the sleeve lock catch 9.

Optionally, as shown in fig. 5, a first limiting table 81 is disposed on an inner side wall of the pen cap 8, and a second limiting table 91 is disposed on an outer side wall of the sleeve lock 9, where when the second limiting table 91 is matched with the first limiting table 81, an inner hole of the sleeve lock 9 is largest in size; the first limiting table 81 and the second limiting table 91 which are matched with each other are arranged, so that the locking direction of the sleeve lock catch 9 is unique, the sleeve lock catch 9 is prevented from rotating over the head, and the stability of locking and unlocking operation is ensured.

Optionally, the size range of the inner hole of the sleeve lock catch 9 is 7.3 mm-8.3 mm, that is, the maximum outer diameter of the pen that can be placed is 8.3mm, and the minimum outer diameter of the pen that can be placed is 7.3mm, and the shape of the pen is not limited, that is, the shape of the pen can be a cylindrical or hexagonal lamp, and the universality of the pen foot is high.

Optionally, as shown in fig. 1, fig. 5, and fig. 6, a poking piece 92 for driving the sleeve lock 9 to rotate relative to the pen cap 8 is disposed on an outer wall of the sleeve lock 9, and a window 82 for moving the poking piece 92 is formed in a side wall of the pen cap 8.

The length direction of the shifting piece 92 is consistent with the axial direction of the sleeve lock catch 9, so that a user can apply force on the sleeve lock catch 9 to drive the sleeve lock catch 9 to rotate; the edge walls of the windows 82 on the upper and lower surfaces of the poking piece 92 in the axial direction are abutted to play a role in positioning the sleeve lock catch 9 and the pen cap 8 in the axial direction, so that the sleeve lock catch 9 is prevented from falling out of the pen cap 8; the poking sheet 92 is convenient for a user to easily drive the sleeve lock catch 9 to rotate, so that the pen can be easily locked or unlocked; specifically, after the poking piece 92 is poked along the locking direction, the two side walls of the opening 93 of the sleeve lock catch 9 are close to each other in the rotating direction, so that the diameter of the whole inner hole of the sleeve lock catch 9 is reduced, then the pen is clamped, the problem that the conventional compasses are locked by using a screw structure, and the hand pain of a user caused by locking force is solved.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims

1. The compasses are characterized by comprising a pen foot body (7) and a pin body (1) which are hinged with each other, wherein the pen foot body (7) is connected with a pen cap (8), the inner side wall of the pen cap (8) is movably sleeved with a sleeve lock catch (9) suitable for mounting a pen, the sleeve lock catch (9) deforms through relative movement with the pen cap (8) to lock or unlock the pen, and the outer wall of the pen is abutted against the inner wall of the sleeve lock catch (9) during locking; stitch body (1) is connected with needle shell (2), install needle body (3) and direction head (4) in needle shell (2), needle body (3) include syringe needle (31), direction head (4) are equipped with the confession guiding hole (41) of syringe needle (31) installation, needle shell (2) are equipped with the confession part direction head (4) and part syringe needle (31) stretch out export (21) of needle shell (2), during the drawing, part syringe needle (31) stretch out in guiding hole (41).

2. The compass according to claim 1, wherein the guide head (4) is movably connected to the needle housing (2) in a vertical direction, and when drawing, the guide head (4) contacts the paper and moves upward relative to the needle housing (2) to protrude the needle (31) from the guide hole (41), and the guide head (4) moves upward relative to the needle housing (2) to have a limit position to limit the depth of insertion of the needle (31) into the paper.

3. The compass according to claim 2, wherein the needle body (3) further comprises a needle tail (32) connected to the upper end of the needle head (31), the needle tail (32) being connected to the needle housing (2).

4. The compasses of claim 3, further comprising a return spring (5) sleeved outside the needle (31), wherein the upper and lower ends of the return spring (5) are respectively abutted against the needle tail (32) and the guide head (4).

5. The compasses of claim 3, wherein both sides of the outer wall of said needle tail (32) are provided with first stoppers (321), and said needle housing (2) is provided with a stopper hole (22) engaged with said first stoppers (321).

6. The compasses of claim 5, further comprising a clamping block (6) connected with said needle housing (2), said needle tail (32) is provided with a groove (322) matched with said clamping block (6), the inner wall of said groove (322) is provided with a second clamping block (323), said needle tail (32) is provided with a clamping groove (61) matched with said second clamping block (323).

7. The compasses of any of claims 1 to 6, wherein said sleeve catch (9) is rotatably connected to said pen holder (8), the outer side wall of said sleeve catch (9) being in abutting connection with the inner side wall of said pen holder (8).

8. The compasses of claim 7, wherein the inner side wall arc radius of said pen holder (8) decreases gradually in the rotational locking direction of said sleeve catch (9).

9. The compasses of claim 8, wherein the internal bore of the sleeve catch (9) ranges from 7.3mm to 8.3 mm.

10. The compasses of claim 7, wherein the outer wall of said sleeve lock catch (9) is provided with a poking piece (92) for driving said sleeve lock catch (9) to rotate relative to said pen cap (8), and a window (82) for moving said poking piece (92) is opened on the side wall of said pen cap (8).