CN210970460U - Anti-accidental injury compasses - Google Patents
Anti-accidental injury compasses Download PDFInfo
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- CN210970460U CN210970460U CN201921723911.1U CN201921723911U CN210970460U CN 210970460 U CN210970460 U CN 210970460U CN 201921723911 U CN201921723911 U CN 201921723911U CN 210970460 U CN210970460 U CN 210970460U
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Abstract
The embodiment of the application discloses an anti-accidental-injury compasses, which comprises a positioning foot and a drawing foot; the upper end of the positioning pin is provided with a hand-held part; the hand-held part is provided with a square hole; a cavity with an opening at the lower end is arranged in the positioning foot; a spring and a connecting rod are arranged in the cavity; one end of the spring is fixed at the upper end of the cavity, and the other end of the spring is fixedly connected with one end of the connecting rod; the other end of the connecting rod is provided with a positioning needle; a connecting rod assembly is also arranged between the connecting rod and one end of the cavity and comprises a first connecting rod and a second connecting rod; the first connecting rod and the second connecting rod extend out of the square hole and are in rotary connection with each other; when the spring is in a natural state, the positioning needle is completely positioned in the cavity. The application provides a compasses passes through link assembly and provides effort and the holding power that the pilot pin exposes to make the compasses get back to in the cavity automatically when no user carries out drawing operation through the spring, thereby avoid the user because of the injured condition that carelessly leads to in the use.
Description
Technical Field
The utility model relates to a stationery technical field, in particular to prevent accidentally injuring type compasses.
Background
Compasses are a common drawing tool and can be used for drawing circles, curved edges, strings, point taking and the like. General compasses mainly including the location foot that is equipped with the steel needle and with the location foot between can angle regulation's the drawing foot, be provided with the drawing pen or can fix external drawing pen on the foot of drawing, fix a little at the paper through the steel needle on the location foot, will draw the foot and carry out clockwise or anticlockwise rotation around the location foot again, and then accomplish the drawing operation.
The steel needle of the traditional compasses is usually in an exposed structure, so that accidents such as hand pricking and the like are easily caused when a user is a child or a student of a lower grade. In order to solve the problem, the recent compasses products are provided with a structure capable of stretching a steel needle, so that the compasses can be retracted into a protective cavity through manual adjustment when not in use, for example, patent CN204278861 provides a structure for realizing the stretching, locking and retraction of a centering needle by poking a hand push rod, and for example, patent CN202106758 provides a structure for realizing the stretching and retraction of a fixing needle through a clamping nut, and the scheme avoids personal injury of the steel needle to a user to a certain extent.
However, the prior art still has the problem of low safety during use, and the reason is that the adjustment of the position of the centering needle is manually adjusted by people, namely, when a user wants to use the compasses, the user needs to set the state that the centering needle is kept extending out, and the state cannot be changed during use, and if the compasses are in a normal working state at the moment, the danger of pricking legs and feet cannot be avoided because the user carelessly drops the compasses; on the other hand, if the user need use the compasses many times, if guarantee the security and adjust centering needle repeatedly and certainly lead to work efficiency's decline, and do not adjust centering needle, when placing the compasses on the table and wait, can have the user to bump it carelessly again and lead to the problem of stabbing equally.
SUMMERY OF THE UTILITY MODEL
The application provides a prevent accidentally injuring type compasses to solve in the compasses use of prior art because the problem of incident appears easily exposing of centering needle.
The application provides an anti-accidental-injury compasses, which comprises a positioning foot and a drawing foot;
the upper end of the drawing foot is connected with the outer side of the upper part of the positioning foot, and the drawing foot can rotate relative to the positioning foot so as to adjust the size of an included angle between the drawing foot and the positioning foot;
the upper end of the positioning pin is provided with a handheld part; the handheld part is provided with a square hole;
a cavity with an opening at the lower end is arranged in the positioning foot;
a spring and a connecting rod are arranged in the cavity; one end of the spring is fixed at the upper end of the cavity, and the other end of the spring is fixedly connected with one end of the connecting rod; the other end of the connecting rod is provided with a positioning needle;
a connecting rod assembly is further arranged between the connecting rod and one end of the cavity, and the connecting rod assembly comprises a first connecting rod and a second connecting rod; one end of the first connecting rod is rotatably connected with the upper end of the cavity; one end of the second connecting rod is rotatably connected with the upper end of the connecting rod; the first connecting rod and the second connecting rod extend out of the square hole and are in rotary connection with each other;
when the spring is in a natural state, the positioning needle is completely positioned in the cavity.
Optionally, the connecting rod assemblies are provided with multiple groups, each group of connecting rod assemblies corresponds to one square hole, and the square holes are uniformly distributed along the circumferential direction of the positioning pin.
Optionally, a rubber sleeve is arranged outside the square hole.
Optionally, the sum of the lengths of the first link and the second link is 1.2 to 1.5 times the length of the spring.
Optionally, the lower end of the drawing foot is provided with a universal adjusting wheel, and the universal adjusting wheel is connected with a fixing plate; and one side of the fixing plate is provided with a fastening screw for fixing the drawing pen.
The application provides a compasses passes through link assembly and provides effort and the holding power that the pilot pin exposes to make the compasses get back to in the cavity automatically when no user carries out drawing operation through the spring, thereby avoid the user because of the injured condition that carelessly leads to in the use.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a schematic structural view of an anti-accidental-injury compass provided by the present application;
FIG. 2 is a cross-sectional view of FIG. 1;
in the figure, 1-positioning foot, 11-handheld part, 12-square hole, 13-cavity, 14-spring, 15-connecting rod, 16-positioning needle, 17-first connecting rod, 18-second connecting rod, 19-rubber sleeve, 2-drawing foot, 21-universal adjusting wheel, 22-fixing plate, 23-drawing pen and 24-fastening screw.
Detailed Description
Referring to fig. 1, a schematic structural diagram of the anti-accidental-injury compass is provided in the present application;
FIG. 2 is a cross-sectional view of FIG. 1;
as shown in fig. 1 and 2, the application provides an anti-accidental-injury compasses, which comprises a positioning foot 1 and a drawing foot 2; in this embodiment, the material and specific shape of the positioning pin 1 and the drawing pin 2 are not limited, for example, the positioning pin and the drawing pin are made of a material with high structural strength, and the geometric shape may be a cylinder, a square, or the like.
The upper end of the drawing foot 2 is connected with the outer side of the upper part of the positioning foot 1, and the drawing foot 2 can rotate relative to the positioning foot 1 so as to adjust the size of an included angle between the drawing foot 2 and the positioning foot 1; specifically, the rotating shaft can be arranged at the outer side of the positioning pin 1, so that the rotating part of the rotating shaft is connected with the upper end of the drawing pin 2, and the rotation of the rotating shaft can drive the drawing pin 2 to rotate, so as to adjust the included angle between the two, and draw the graph to be drawn; it should be noted that, in this embodiment, the positioning positions of the two are not limited, and the connection near the upper portion can obtain a larger angle variation range and a larger drawing range;
the upper end of the positioning pin 1 is provided with a handheld part 11; the hand-held part 11 is provided with a square hole 12; the handheld part 11 in the embodiment refers to a position that a user holds when the compass is used for drawing, and is not a position that the user always holds, in practical use, the user can conveniently rotate the compass by holding the upper end of the compass, and the shielding of the sight line is reduced as much as possible, and when the user does not use the compass for drawing, the user does not need to hold the position and only needs to hold the middle part of the compass; in addition, the square hole 12 in the present embodiment is not limited to be rectangular, and may be configured to be shuttle-shaped, oval-shaped or other shapes according to actual needs, and when drawing with the compass, at least one finger of the user needs to be located at a position covering the square hole, so as to provide a supporting force for extending the positioning pin 16.
A cavity 13 with an opening at the lower end is arranged in the positioning foot 1; the cavity 13 provides a space for exposing and hiding the positioning pin 16, thereby protecting the positioning pin 16.
A spring 14 and a connecting rod 15 are arranged in the cavity 13; one end of the spring 14 is fixed at the upper end of the cavity 13, and the other end of the spring 14 is fixedly connected with one end of the connecting rod 15; the other end of the connecting rod 15 is provided with a positioning needle 16;
a connecting rod assembly is further arranged between the connecting rod 15 and one end of the cavity 13, and comprises a first connecting rod 17 and a second connecting rod 18; one end of the first connecting rod 17 is rotatably connected with the upper end of the cavity 13; one end of the second connecting rod 18 is rotatably connected with the upper end of the connecting rod 15; the first connecting rod 17 and the second connecting rod 18 both extend out of the square hole 12 and are rotatably connected with each other; when the connecting rod assembly is in the initial position (the compasses do not work state), the connecting position of the first connecting rod 17 and the second connecting rod 18 is positioned outside the square hole 12, and when the connecting position of the two connecting rods is pushed to move inwards by external force, the connecting rod 15 is pushed downwards due to the structural relationship of the two connecting rods and other components in the cavity 13, so that the positioning needle 16 moves downwards.
When the spring 14 is in its natural state, the positioning pin 16 is entirely located in the cavity 13. The natural state of the spring is the state when no stretching or compression exists, at the moment, if inward force is applied to the first connecting rod and the second connecting rod, the connecting rod 15 drives the positioning needle 16 to move downwards, the positioning needle 16 extends out of the cavity 13, meanwhile, as the spring 14 is stretched, the connecting rod 15 is always under the elastic action of the spring 14, when the user finishes drawing, after the hand loosens the clamping of the handheld part 11, the positioning needle 16 is automatically pulled back into the cavity 13 due to the elastic action.
According to the technical scheme, the compass provided by the application has the use process that: when the compasses are needed to be used, a user clamps the hand-holding part 11 through fingers, clamping force is provided through the fingers to enable the connecting rod assembly to enter the cavity 13, the positioning needle 16 extends out of the cavity 13, the corresponding central point can be corresponding to the corresponding paper surface, then the radius needing to be drawn is adjusted through the drawing foot 2, drawing can be conducted through rotating the compasses, the hand-holding position is kept in the rotating process to provide pressure of the connecting rod assembly all the time, drawing is known to be completed, and after the compasses are placed, the positioning needle 16 automatically returns to the cavity 13 under the action of elastic force due to the fact that the pressure of the connecting rod assembly is not provided by the hand any more.
The scheme that this application provided is owing to enable 16 automatic resilience of pilot pin, and when the user was drawn, even the hand does not take steady compasses like this, makes the compasses drop, owing to just will lose the hand to its effort when the compasses leave the hand, will make the pilot pin 16 just get back to in the cavity 13 before the whereabouts to the injury to the user in the use has been avoided.
Furthermore, the connecting rod assemblies are provided with a plurality of groups, each group of connecting rod assemblies corresponds to one square hole 12, and the square holes 12 are uniformly distributed along the circumferential direction of the positioning pin 1. In order to facilitate the operation of the user, square holes, for example, four square holes, may be formed in each direction of the handle portion 11, so that the positioning pin 16 may be immediately extended without specially finding the position of the square hole when the compass is held, and at least one square hole may be covered by a finger no matter how the compass is rotated, and as long as one square hole is covered, it means that a group of link assemblies is pressed into the cavity, and downward pressure is maintained on the positioning pin 16.
Further, a rubber sleeve 19 is arranged outside the square hole 12; the rubber sleeve 19 can improve hand feeling on one hand and avoid discomfort of hands caused by high local pressure; on the other hand, foreign matters can be prevented from entering the cavity 13, and the service life of the compasses is prolonged.
Further, the sum of the lengths of the first connecting rod 17 and the second connecting rod 18 is 1.2-1.5 times of the length of the spring 14, so that when the connecting part is pressed into a cavity, the extending length of the positioning needle 16 can be proper, and the drawing is not influenced by too short or too long.
Further, the lower end of the drawing foot 2 is provided with a universal adjusting wheel 21, and the universal adjusting wheel 21 is connected with a fixing plate 22; a fastening screw 24 for fixing the drawing pen 23 is arranged on one side of the fixing plate 22. The universal adjusting wheel can enable the drawing pen to be adjusted in multiple directions, and the drawing pen is suitable for multiple drawing positions and drawing environments.
According to the technical scheme, the application provides the anti-accidental-injury compasses, which comprise positioning feet and drawing feet; the upper end of the drawing foot is connected with the outer side of the upper part of the positioning foot, and the drawing foot can rotate relative to the positioning foot so as to adjust the size of an included angle between the drawing foot and the positioning foot; the upper end of the positioning pin is provided with a handheld part; the handheld part is provided with a square hole; a cavity with an opening at the lower end is arranged in the positioning foot; a spring and a connecting rod are arranged in the cavity; one end of the spring is fixed at the upper end of the cavity, and the other end of the spring is fixedly connected with one end of the connecting rod; the other end of the connecting rod is provided with a positioning needle; a connecting rod assembly is further arranged between the connecting rod and one end of the cavity, and the connecting rod assembly comprises a first connecting rod and a second connecting rod; one end of the first connecting rod is rotatably connected with the upper end of the cavity; one end of the second connecting rod is rotatably connected with the upper end of the connecting rod; the first connecting rod and the second connecting rod extend out of the square hole and are in rotary connection with each other; when the spring is in a natural state, the positioning needle is completely positioned in the cavity. The application provides a compasses passes through link assembly and provides effort and the holding power that the pilot pin exposes to make the compasses get back to in the cavity automatically when no user carries out drawing operation through the spring, thereby avoid the user because of the injured condition that carelessly leads to in the use.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (5)
1. The anti-accidental injury compasses are characterized by comprising a positioning foot (1) and a drawing foot (2);
the upper end of the drawing foot (2) is connected with the outer side of the upper part of the positioning foot (1), and the drawing foot (2) can rotate relative to the positioning foot (1) so as to adjust the size of an included angle between the drawing foot and the positioning foot (1);
the upper end of the positioning foot (1) is provided with a handheld part (11); the handheld part (11) is provided with a square hole (12);
a cavity (13) with an opening at the lower end is arranged in the positioning foot (1);
a spring (14) and a connecting rod (15) are arranged in the cavity (13); one end of the spring (14) is fixed at the upper end of the cavity (13), and the other end of the spring (14) is fixedly connected with one end of the connecting rod (15); the other end of the connecting rod (15) is provided with a positioning needle (16);
a connecting rod assembly is further arranged between the connecting rod (15) and one end of the cavity (13), and the connecting rod assembly comprises a first connecting rod (17) and a second connecting rod (18); one end of the first connecting rod (17) is rotatably connected with the upper end of the cavity (13); one end of the second connecting rod (18) is rotatably connected with the upper end of the connecting rod (15); the first connecting rod (17) and the second connecting rod (18) extend out of the square hole (12) and are connected with each other in a rotating mode;
when the spring (14) is in a natural state, the positioning pin (16) is entirely located in the cavity (13).
2. The compasses of claim 1, wherein said connecting rod assemblies are provided with a plurality of sets, each set corresponding to a square hole (12), and a plurality of said square holes (12) are uniformly distributed along the circumference of said positioning foot (1).
3. An anti-accidental injury compasses according to claim 1 or 2, wherein a rubber sleeve (19) is provided outside said square hole (12).
4. An anti-accidental injury compass according to claim 1, wherein the sum of the lengths of the first link (17) and the second link (18) is 1.2-1.5 times the length of the spring (14).
5. The error injury prevention compasses of claim 1, wherein a universal adjusting wheel (21) is arranged at the lower end of said drawing foot (2), said universal adjusting wheel (21) is connected with a fixing plate (22); and one side of the fixing plate (22) is provided with a fastening screw (24) for fixing the drawing pen (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723911.1U CN210970460U (en) | 2019-10-15 | 2019-10-15 | Anti-accidental injury compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723911.1U CN210970460U (en) | 2019-10-15 | 2019-10-15 | Anti-accidental injury compasses |
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| Publication Number | Publication Date |
|---|---|
| CN210970460U true CN210970460U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921723911.1U Active CN210970460U (en) | 2019-10-15 | 2019-10-15 | Anti-accidental injury compasses |
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| CN (1) | CN210970460U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113942332A (en) * | 2020-07-15 | 2022-01-18 | 可慈王株式会社 | Compasses |
| CN115257216A (en) * | 2022-09-07 | 2022-11-01 | 广州市悟生文具有限公司 | Press compasses |
-
2019
- 2019-10-15 CN CN201921723911.1U patent/CN210970460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113942332A (en) * | 2020-07-15 | 2022-01-18 | 可慈王株式会社 | Compasses |
| CN115257216A (en) * | 2022-09-07 | 2022-11-01 | 广州市悟生文具有限公司 | Press compasses |
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