CN216579897U

CN216579897U - Pressing type compasses

Info

Publication number: CN216579897U
Application number: CN202120854743.0U
Authority: CN
Inventors: 孔佳万; 刘贵堂; 石晨青; 代修伟; 王宇骋
Original assignee: Shanghai M&G Stationery Inc
Current assignee: Shanghai M&G Stationery Inc
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-05-24
Anticipated expiration: 2031-04-23

Abstract

The utility model discloses a novel pressing type compass, which comprises a compass main body, a writing tool (1) and a pressing needle device, wherein the compass main body comprises a compass head (8) and two compass legs pivoted on the compass head (8), and the writing tool (1) and the pressing needle device are respectively arranged at the tail ends of the two compass legs; the pressing needle device comprises a needle tube mechanism (2) fixed at the tail end of the compass foot and a pressing positioning mechanism (3) assembled in the needle tube mechanism (2), wherein the pressing positioning mechanism (3) comprises a telescopic steel needle (43), and the pressing positioning mechanism (3) is arranged to be pressed by a user to stretch out or retract the steel needle (43) into the needle tube mechanism (2) for positioning.

Description

Pressing type compasses

Technical Field

The utility model relates to the field of stationery, in particular to compasses.

Background

The compasses are indispensable tools in drawing, are official working, study necessary instrument. The existing compasses are generally connected with a drawing tool by one support and a positioning needle by the other support. In the actual use process, because the pilot pin leaks for a long time, the use is easy to hurt people, and the phenomenon that the needle point is passivated and slides on the paper surface is easy to occur due to the fact that the pilot pin falls carelessly, so that the use experience of an operator and the circle drawing precision are influenced. At present, compasses with a protective sleeve have the function of protecting a positioning needle, but the protective sleeve is easy to lose and causes inconvenience for use.

Therefore, in order to improve the safety and operability of the compasses, a new type of compasses needs to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel pressing type compass for improving the safety and operability of the compass.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a kind of pressing type compasses, including compasses body, writing tool and pressing needle device, the said compasses body includes the head of the compasses and pivots to locate two compasses feet of the said compasses head, said writing tool and said pressing needle device are set up in the end of two said compasses feet separately; the pressing needle device comprises a needle tube mechanism fixed at the tail end of the compass foot and a pressing positioning mechanism assembled in the needle tube mechanism, wherein the pressing positioning mechanism comprises a telescopic steel needle, and the pressing positioning mechanism is arranged to extend or retract the steel needle to the needle tube mechanism for positioning through pressing of a user.

Further, the needle tube mechanism includes a needle tube and a set cap that restricts the pressing and positioning mechanism to the needle tube by fitting to an end of the needle tube.

Furthermore, the pressing and positioning mechanism comprises a pressing structure which can be inserted into the needle tube in a vertically movable manner and a positioning mechanism which is assembled outside the needle tube, and the pressing structure is matched with the positioning mechanism through a through hole which is formed in the side wall of the needle tube to realize the function of pressing, stretching and positioning the steel needle.

Furthermore, the pressing structure comprises a pressing rod, an elastic piece, a first driving block and a second driving block, wherein the pressing rod can be operated to press, the first driving block and the second driving block are arranged on the outer peripheral surface of the pressing rod at intervals, the steel needle is arranged below the pressing rod, and the elastic piece provides upward elastic force relative to the needle tube for the pressing rod all the time.

Furthermore, positioning mechanism includes the pivot mounting and the pivot is located location pivot on the pivot mounting, when pressing positioning mechanism and being pressed, the location pivot with first drive block with the cooperation of second drive block is restricted press positioning mechanism's relative position, thereby realize the flexible locate function of steel needle.

Furthermore, the positioning rotating shaft comprises a shaft body pivoted on the rotating shaft fixing piece, and a first convex block and a second convex block which are arranged on the outer peripheral surface of the shaft body and are opposite to the through hole, wherein the first convex block is provided with an upper sliding surface extending obliquely up and down around the shaft body, and a first side surface and a second side surface extending downwards from two opposite sides of the upper sliding surface respectively, the first side surface is provided with a first inclined surface connected with the upper sliding surface and extending obliquely downwards along the direction from the rotating shaft fixing piece to the pressing rod, and a first abutting surface connected with the first inclined surface and extending downwards, the second side surface is provided with a second abutting surface connected with the upper sliding surface and extending downwards, and a second inclined surface connected with the second abutting surface and extending obliquely downwards along the direction from the pressing rod to the rotating shaft fixing piece, and the bottom side of the first convex block is provided with a groove top surface extending obliquely upwards, and the second lug is positioned above the first lug and is provided with an auxiliary surface which is inclined up and down and the inclined direction of the auxiliary surface is opposite to the inclined direction of the upper sliding surface.

Further, the elastic member is a spring.

Further, the writing instrument is a mechanical pencil.

Furthermore, the writing tool comprises a pen rack fixed on the compass foot, a pen tube movably inserted in the pen rack, a pen core inserted at the tail end of the pen tube and a sleeve assembled on the outer peripheral surface of the pen tube, wherein the pen tube is locked on the pen rack through the sleeve.

Furthermore, the outer peripheral surface of the pen tube is provided with external threads, the inner peripheral surface of the sleeve is provided with internal threads, and the sleeve is in threaded connection with the pen tube.

The utility model has the technical effects that: the user can stretch out or retract up the steel needle to be positioned by pressing, and the operation is very convenient. When the steel needle is retracted in the needle tube, the steel needle can be prevented from being always exposed, so that the safety in use is improved, and the damage to the needle tip caused by the fact that the compasses drop carelessly is also avoided.

Drawings

The foregoing technical disclosure as well as the following detailed description of the present invention will be better understood when read in conjunction with the appended drawings. It is to be noted that the figures are only intended as examples of the claimed solution. In the drawings, like reference characters designate the same or similar elements.

FIG. 1 is a perspective view of the retractable compass in a retracted state according to an embodiment of the present invention;

FIG. 2 is a perspective view of the pressing compass in use according to one embodiment of the present invention;

FIG. 3 is an exploded view of a knock pin assembly in accordance with one embodiment of the present invention;

FIG. 4 is a perspective view of a positioning shaft according to an embodiment of the present invention;

FIG. 5-A is a longitudinal cross-sectional view of the push button positioning mechanism of one embodiment of the present invention moving from the storage state to the use state;

FIG. 5-B is a longitudinal cross-sectional view of the push button positioning mechanism of one embodiment of the present invention moving from the use position to the storage position;

FIG. 6-A is a cross-sectional view of a press detent mechanism according to an embodiment of the present invention in a stowed position;

FIG. 6-B is a cross-sectional view of a press detent mechanism according to an embodiment of the present invention in use;

FIG. 7 is a perspective view of another embodiment of the press-type compass of the present invention.

Wherein the reference numerals are as follows:

1 writing instrument

11 penholder

12 pen tube

121 external screw thread

13 Pen core

14 casing

141 internal thread

2 needle tube mechanism

20 through hole

21 needle tube

22 fixed cover

3 pressing and positioning mechanism

4 pressing structure

41 pressing rod

42 steel needle

43 elastic member

44 first drive block

45 second driving block

5 positioning mechanism

6 pivot mounting

61 first limit wall

62 second limiting wall

7 positioning rotating shaft

71 shaft body

72 first bump

73 second bump

731 auxiliary surface

74 upper sliding surface

75 first side surface

751 first inclined plane

752 first leaning surface

76 second side surface

761 second inclined plane

762 second abutting surface

77 groove top surface

78 stop surface

8 compasses head

Detailed Description

The detailed features and advantages of the utility model are described in the following detailed description, which is sufficient to enable one skilled in the art to understand the technical content of the utility model and to implement the utility model, and the related objects and advantages of the utility model can be easily understood by one skilled in the art from the description, the claims and the accompanying drawings.

As used herein, directional terms such as "upper", "lower", "top", "bottom", and the like are used with reference to the normal attitude of the compass.

In one embodiment, as shown in FIGS. 1-3, the knock-type compass includes a compass body, a writing instrument 1, and a knock needle assembly. The compasses main body comprises a compasses head 8 and two compasses feet which are pivoted on the compasses head 8, and the structure is basically the same as that of the traditional compasses. The writing instrument 1 and the knock pin device are respectively provided at the ends of two compass legs to pivotally swing around the compass head 8 along with the compass legs.

The writing instrument 1 in this embodiment is a conventional push-type mechanical pencil.

The pressing needle device comprises a needle tube structure 2 and a pressing positioning mechanism 3.

The needle tube mechanism 2 includes a needle tube 21 and a fixed cap 22 covering the needle tube 21. A circular hole is provided in the stationary cover 22 for the passage of the pressing structure 4. The needle tube 21 has a through hole 20 in the side wall.

The pushing and positioning mechanism 3 is provided in the syringe mechanism 2, and includes a pushing mechanism 4 and a positioning mechanism 5 which are inserted into the syringe 21 so as to be movable up and down.

The pressing structure 4 has a pressing rod 41 for pressing, an elastic member 43 installed between the needle tube 21 and the pressing rod 41, and a first driving block 44 and a second driving block 45 disposed at an interval in the vertical direction on the outer peripheral surface of the pressing rod 41 and exposed from the through hole 20 of the needle tube 21. The steel needle 42 is connected to the lower side of the pressing rod 41. The pressing rod 41 is a circular hole inserted into the needle tube 21 and penetrating upward out of the fixed cover 22. The elastic member 43 constantly provides an elastic force for moving the pressing rod 41 upward with respect to the needle tube 21. The positioning mechanism 5 has a rotating shaft fixing member 6 provided outside the needle tube 21, and a positioning rotating shaft 7 pivoted to the rotating shaft fixing member 6. The shaft fixing member 6 has a first limiting wall 61 and a second limiting wall 62 respectively located on two opposite sides of the positioning shaft 7 in the radial direction.

As shown in fig. 4, the positioning shaft 7 has a shaft body 71 pivotally disposed on the shaft fixing member 6, and a first protrusion 72 and a second protrusion 73 disposed on the outer peripheral surface of the shaft body 71 and opposite to the through hole 20. The first protrusion 72 has an upper sliding surface 74 extending obliquely up and down around the shaft body 71, and a first side surface 75 and a second side surface 76 extending downward from two opposite sides of the upper sliding surface 74. The first side surface 75 has a first inclined surface 751 connected to the upper sliding surface 74 and extending obliquely downward in a direction from the rotating shaft fixing member 6 to the pressing rod 41, and a first abutting surface 752 connected to the first inclined surface 751 and extending downward. The second side surface 76 has a second abutting surface 762 connected to the upper sliding surface 74 and extending downward, and a second inclined surface 761 connected to the second abutting surface 762 and extending obliquely downward along the direction from the pressing rod 41 to the rotating shaft fixing member 6. The bottom side of the first protrusion 72 has a slot top surface 77 extending obliquely upward and a stop surface 78 connected to the top end of the slot top surface 77 and extending downward. The second projection 73 is located above the first projection 72, and has an auxiliary surface 731 inclined upward and downward in a direction opposite to the direction in which the upper slide surface 74 is inclined.

As shown in fig. 5-a and 6-a, the user can press the pressing lever 41 to change the compass between a needle retracting state (accommodated state) in which a steel needle 42 is accommodated in the needle tube 21 and a needle discharging state (used state) in which the steel needle 42 protrudes downward from the needle tube 21. When the first embodiment is operated to change from the needle retracting state to the needle exiting state, the pressing rod 41 is pressed to move downward relative to the needle tube 21 and compress the elastic member 43, and the first driving block 44 is driven to abut against the upper sliding surface 74 of the first protrusion 72, so that the abutted first driving block 44 slides downward along the upper sliding surface 74 and drives the positioning rotating shaft 7 to pivot to a first deflection position elastically abutting against the first limiting wall 61, and therefore, the first driving block 44 can be changed from the bottom end of the upper sliding surface 74 to abut against the first side surface 75 and continuously move downward. In the process that the first driving block 44 slides to the first abutting surface 752 along the first inclined surface 751 of the first side surface 75, the first driving block 44 elastically abuts against the rotating shaft fixing member 6 to swing in the direction away from the needle tube 21 until the first driving block 44 leaves the first abutting surface 752 and is separated from the first protruding block 72 downward, the rotating shaft fixing member 6 rebounds in the direction of the needle tube 21, and the positioning rotating shaft 7 is elastically pivoted and reset from the first deflection position in a matched manner to limit the first driving block 44 in a needle discharging state, and the first driving block 44 is limited below the first protruding block 72 by the groove top surface 77 and the abutting surface 78 together, so that the compass can be stably limited in the needle discharging state.

As shown in fig. 5-B and 6-B, when the knock-type compass is operated to change from a needle-out state to a needle-in state, the pressing rod 41 is pressed downward to drive the second driving block 45 to abut against the auxiliary surface 731 of the second protrusion 73, the second driving block 45 slides downward along the auxiliary surface 731 and drives the positioning rotating shaft 7 to pivot to a second deflection position where the positioning rotating shaft elastically abuts against the second limiting wall 62, and then the pressing rod 41 is released to allow the pressing rod 41 to move upward by the elastic force of the elastic member 43 and drive the steel needle 42 to retract into the needle tube 21, and drive the first driving block 44 to slide upward along the second side surface 76. During the process that the first driving block 44 slides to the second abutting surface 762 along the second inclined surface 761, the rotating shaft fixing member 6 is elastically abutted and pushed to deflect in the direction away from the needle tube 21 until the first driving block 44 leaves the second abutting surface 762 and is separated from the first bump 72 upwards, the rotating shaft fixing member 6 rebounds in the direction of the needle tube 21, and the positioning rotating shaft 7 is matched to elastically pivot and reset from the second deflection position, so that the first bump 72 rotates to the position below the first driving block 44, and the compass is located in the needle retracting state.

Referring to FIG. 7, there is shown another embodiment of the present invention of a press-type compass, wherein the writing instrument 1 includes a pen holder 11 pivotally swinging with respect to the needle mechanism 2, a pen barrel 12 inserted into the pen holder 11, a pen core 13 inserted into the pen barrel 12, and two sleeves 14 screwed up and down on the outer peripheral surface of the pen barrel 12. The pen barrel 12 has an external thread 121 on its outer circumferential surface, and the sleeve 14 has an internal thread 141 on its inner circumferential surface. The user can adjust the position of the pen tube 12 relative to the pen holder 11 according to the requirement, and then the sleeve 14 is sleeved up and down and screwed on the pen tube 12, so as to lock the pen tube 12 on the pen holder 11.

In summary, by means of the arrangement of the pressing and positioning mechanism 3, when the compasses are used, the pressing rod 41 can be pressed to enable the steel needle 42 to protrude out of the needle tube 21, and after the compasses are used, the pressing rod 41 is pressed again to enable the steel needle 42 to be retracted into the needle tube 21, so that the steel needle 42 is prevented from being exposed out of the needle tube 21 all the time, and the compasses are convenient to operate and can improve the use safety.

The terms and expressions which have been employed are used as terms of description and not of limitation. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.

Also, it should be noted that although the present invention has been described with reference to the current specific embodiments, it should be understood by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes or substitutions may be made therein without departing from the spirit of the present invention, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit of the present invention shall fall within the scope of the appended claims.

Claims

1. A pressing type compasses is characterized in that the compasses comprises a compasses main body, a writing tool (1) and a pressing needle device,

the compass main body comprises a compass head (8) and two compass feet which are pivoted on the compass head (8),

the writing tool (1) and the pressing needle device are respectively arranged at the tail ends of the two compasses feet;

the pressing needle device comprises a needle tube mechanism (2) fixed at the tail end of the compass foot and a pressing positioning mechanism (3) assembled in the needle tube mechanism (2), wherein the pressing positioning mechanism (3) comprises a telescopic steel needle (42), and the pressing positioning mechanism (3) is arranged to be positioned by pressing the steel needle (42) to extend or retract the needle tube mechanism (2).

2. The press compass according to claim 1, wherein the needle tube mechanism (2) includes a needle tube (21) and a stationary cover (22), the stationary cover (22) restricting the press positioning mechanism (3) to the needle tube (21) by fitting to an end of the needle tube (21).

3. The pressing compass according to claim 2, wherein the pressing and positioning mechanism (3) comprises a pressing structure (4) inserted into the needle tube (21) in a vertically movable manner and a positioning mechanism (5) assembled outside the needle tube (21), and the pressing structure (4) cooperates with the positioning mechanism (5) through a through hole (20) formed in a sidewall of the needle tube (21) to realize the pressing and telescopic positioning function of the steel needle (42).

4. The press compass according to claim 3, wherein the pressing structure (4) comprises a pressing lever (41) for operation pressing, an elastic member (43), a first driving block (44) and a second driving block (45) which are provided at an upper and lower interval on an outer peripheral surface of the pressing lever (41),

the steel needle (42) is arranged below the pressing rod (41),

the elastic piece (43) always provides an upward elastic force for the pressing rod (41) relative to the needle tube (21).

5. The pressing compass according to claim 4, wherein the positioning mechanism (5) comprises a shaft holder (6) and a positioning shaft (7) pivotally mounted on the shaft holder (6),

when the pressing and positioning mechanism (3) is pressed, the positioning rotating shaft (7) is matched with the first driving block (44) and the second driving block (45) to limit the relative position of the pressing and positioning mechanism (3), so that the telescopic positioning function of the steel needle (42) is realized.

6. The press compass according to claim 5, wherein the positioning shaft (7) includes a shaft body (71) pivotally provided on the shaft holder (6), and a first protrusion (72) and a second protrusion (73) provided on an outer peripheral surface of the shaft body (71) and opposed to the through hole (20), the first protrusion (72) having an upper sliding surface (74) extending obliquely up and down around the shaft body (71), a first side surface (75) and a second side surface (76) extending downward from opposite sides of the upper sliding surface (74), respectively, the first side surface (75) having a first inclined surface (751) connected to the upper sliding surface (74) and extending obliquely downward in a direction from the shaft holder (6) toward the pressing bar (41), and a first abutting surface (752) connected to the first inclined surface (751) and extending downward, the second side surface (76) is provided with a second abutting surface (762) which is connected with the upper sliding surface (74) and extends downwards, a second inclined surface (761) which is connected with the second abutting surface (762) and extends obliquely downwards along the direction from the pressing rod (41) to the rotating shaft fixing part (6), the bottom side of the first convex block (72) is provided with a groove top surface (77) which extends obliquely upwards, and a blocking and abutting surface (78) which is connected with the top end of the groove top surface (77) and extends downwards, and the second convex block (73) is positioned above the first convex block (72) and is provided with an auxiliary surface (731) which inclines upwards and downwards and has the opposite inclination direction to the inclination direction of the upper sliding surface (74).

7. The press compass according to claim 4, wherein the elastic member (43) is a spring.

8. The press compass of claim 1, wherein the writing instrument is a mechanical pencil.

9. The press-type compass according to claim 1, wherein the writing instrument comprises a holder (11) fixed to the compass foot, a barrel (12) movably inserted into the holder (11), a cartridge (13) inserted into a distal end of the barrel (12), and a sleeve (14) fitted to an outer peripheral surface of the barrel (12), the barrel (12) being locked to the holder (11) by the sleeve (14).

10. The press-type compass according to claim 9, wherein the pen barrel (12) is provided on an outer peripheral surface thereof with an external thread (121), and the sleeve (14) is provided on an inner peripheral surface thereof with an internal thread (141), the sleeve being screwed to the pen barrel (12).