CN202965691U - Compasses capable of avoiding damaging paper - Google Patents
Compasses capable of avoiding damaging paper Download PDFInfo
- Publication number
- CN202965691U CN202965691U CN 201220737565 CN201220737565U CN202965691U CN 202965691 U CN202965691 U CN 202965691U CN 201220737565 CN201220737565 CN 201220737565 CN 201220737565 U CN201220737565 U CN 201220737565U CN 202965691 U CN202965691 U CN 202965691U
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- China
- Prior art keywords
- main body
- compasses
- body bar
- backstay
- sleeve
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- Expired - Fee Related
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Abstract
The utility model discloses compasses capable of avoiding damaging paper. The compasses comprise a main body rod, a positioning rod, a positioning seat, a handle, a spring, a connecting sleeve, a pressing bolt, a main scale, a slide caliper and a compasses supporting leg. The main body rod is sleeved on the positioning rod, and the bottom end of the positioning rod extends out of the main body rod and is fixed with the positioning seat. The positioning seat is a transparent seat, the bottom surface of the positioning seat is provided with criss-cross check lines, and the handle is sleeved on the main body rod. The connecting sleeve is connected with the top end of the main body rod, and the spring is arranged in the connecting sleeve and supplies compressive pre-stress on the positioning rod. The main scale is perpendicular to the main body rod, the slide caliper is arranged on the main scale and can slide along the main scale, and the compasses supporting leg is fixed on the slide caliper and parallel with the positioning rod. According to the compasses capable of avoiding damaging the paper, a criss-cross point on the bottom surface of the positioning seat is used for determining the center of a circle, and therefore the contact area of the compasses and graph paper is enlarged, and the trouble that the graph paper is damaged in the process of plotting can be eliminated; the spring is used for adjusting pressure supplied on the compasses supporting leg, and therefore a line-drawing leg can be evenly stressed, and a drawn line can be continuous and even in thickness and can not be dislocated.
Description
Technical field
The utility model relates to a kind of schooling apparatus, relates in particular to a kind of compasses of avoiding brlken paper.
Background technology
Present compasses all have two compasses legs, and the upper end of these two compasses legs is hinged, and the lower end can arbitrarily separate or close up, to adjust the size of the arc radius of being painted.The end of a compasses leg is needle point, the setting-out pin of the end of another compasses leg for packing into and painting pencil line.That compasses leg with draw point is fixed in circle centre position, then can rotary disk, select to have that compasses leg of suitable lead for retractable pencil, and loose bolts can be regulated the position of lead for retractable pencil, until during the radius that needs, tighting a bolt just can be used for having drawn.
With regard to present compasses, mainly have following deficiency: one, the end due to that compasses leg of centering is needle point, and in drawing course, the tip easily causes drawing damaged; Two, in the process of drawing, hand is uneven to that compasses leg application of force of setting-out, and the lines that are prone to the picture circle are discontinuous, and line weight is uneven; Three, in drawing the circle process, the gradient of compasses leg is constantly being found variation, easily makes the lines dislocation between two-end-point at the whole story.
The utility model content
For the deficiencies in the prior art part, the utility model provides a kind of can effectively avoid brlken paper, and setting-out is continuous, and line weight is even, and avoids the compasses of avoiding brlken paper of lines dislocation.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
Avoid the compasses of brlken paper, comprise main body bar, backstay, positioning seat, handle, rocking bar, spring, adapter sleeve, hold-down bolt, main scale, slide measure and compasses leg;
Described main body bar is hollow structure, and the main body bar is enclosed within on backstay and with backstay and is slidably matched, and the bottom of described backstay is stretched out the main body bar and is fixedly connected with positioning seat; Described positioning seat is transparent block, and the bottom surface of positioning seat has the right-angled intersection stria, and the crosspoint of right-angled intersection stria is positioned on the axis of backstay, and described handle is hollow structure, and handle sleeve is slidably matched on the main body bar and with the main body bar;
One end of described adapter sleeve is connected with the top of main body bar, and hold-down bolt screws in the other end of adapter sleeve; Described spring is arranged in adapter sleeve, and a side pressure of spring is at the top of backstay, and the other end of spring is pressed on hold-down bolt; Rocking bar is fixedly connected with adapter sleeve;
Described main scale is vertical with the main body bar, and an end of main scale is connected with the main body bar and can be along the endwisely slipping of main body bar, and described slide measure is arranged on main scale and can slides along main scale; Described compasses leg is fixed on slide measure and is parallel with backstay, and the end of compasses leg is the setting-out pin of the pencil-lead of can packing into.
As a kind of preferred version of the present utility model, an end of described spring is fixedly connected on the top of backstay, and the external diameter of spring is greater than the internal diameter of main body bar.
As another kind of preferred version of the present utility model, the top of described backstay has a lateral dimension greater than the limited block of the internal diameter of main body bar, one end of described spring is pressed in the top of backstay by the steel ball I, the other end of spring is pressed on hold-down bolt by the steel ball II.
As a kind of improvement project of the present utility model, the bottom surface circumference of described positioning seat is provided with rubber ring, and the crosspoint of described right-angled intersection stria is positioned at the center of rubber ring.
As another kind of improvement project of the present utility model, also comprise the sleeve I, described sleeve I is enclosed within on the main body bar and with the main body bar and is slidably matched, and described sleeve I is fixed on the main body bar by the clamping screw I, and an end of main scale is fixedly connected with the sleeve I.
As another improvement project of the present utility model, also comprise the sleeve II, described sleeve II is enclosed within on adapter sleeve and with adapter sleeve and is slidably matched, and the sleeve II is fixed on adapter sleeve by the clamping screw II, and rocking bar is fixed on the sleeve II.
As the further improvement of the utility model scheme, an end of described adapter sleeve is connected to the top of main body bar by the mode of threaded engagement.
As further improvement project more of the present utility model, described slide measure is bolted on main scale by adjustment.
Compared with prior art, the utlity model has following advantage:
1, the utility model arranges transparent positioning seat in the bottom of backstay, utilize the crosspoint of the right-angled intersection stria on the positioning seat bottom surface to determine the center of circle, replace the cusp in existing compasses, increase and the drawing contact area, can eliminate the broken puzzlement that can't bear of drawing when completing of drawing fully.
2, one holds handle, and the another hand only needs rotating rocker just can draw circle, utilizes spring to regulate the exerting pressure of compasses leg, and the setting-out pin is stressed evenly, and the lines that draw are continuous, even thickness.
3, backstay remains vertical by positioning seat with the picture paper, and the compasses leg is also vertical with the picture paper all the time in the setting-out process, and the lines that draw can not misplace.
4, by the position of adjusting slide measure on main scale, just drawn radius of a circle can be regulated, just drawn radius of a circle value can be directly read by the scale on main scale.
Description of drawings
Fig. 1 is the structural representation of avoiding the compasses of brlken paper;
Fig. 2 is the upward view of positioning seat;
Fig. 3 is that the two ends of spring are pressed in structural representation on backstay and hold-down bolt by steel ball respectively.
In accompanying drawing: 1-main body bar; 2-backstay; 3-positioning seat; 4-handle; 5-rocking bar; 6-spring; 7-adapter sleeve; 8-hold-down bolt; 9-main scale; 10-slide measure; 11-compasses leg; 12-limited block; 13-steel ball I; 14-steel ball II; 15-rubber ring; 16-sleeve I; 17-sleeve II; 18-clamping screw II; 19-adjustment bolt.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, 2, avoid the compasses of brlken paper, comprise main body bar 1, backstay 2, positioning seat 3, handle 4, rocking bar 5, spring 6, adapter sleeve 7, hold-down bolt 8, main scale 9, slide measure 10, compasses leg 11, sleeve I 16, sleeve II 17 and adjust bolt 19.
Wherein, main body bar 1 is hollow structure, and main body bar 1 is enclosed within on backstay 2 and with backstay 2 and is slidably matched, and the bottom of backstay 2 is stretched out main body bar 1 and is fixedly connected with positioning seat 3.Positioning seat 3 is transparent block, in the present embodiment, the cylinder that positioning seat 3 is made by transparent material, the bottom surface of positioning seat 3 has the right-angled intersection stria, the crosspoint of right-angled intersection stria is positioned on the axis of backstay 2, the right-angled intersection stria can adopt coloured line, and the crosspoint of being convenient to the right-angled intersection stria overlaps with the center of circle, also is convenient to observe simultaneously the position in the center of circle.Handle 4 is hollow structure, and handle 4 is enclosed within on main body bar 1 and with main body bar 1 and is slidably matched.
The top of main body bar 1 arranges external screw thread, and the inwall of adapter sleeve 7 arranges internal thread, and the bottom rotation set of adapter sleeve 7 is on the top of main body bar 1, and hold-down bolt 8 screws in the top of adapter sleeve 7.Spring 6 is arranged in adapter sleeve 7, and the external diameter of spring 6 is greater than the internal diameter of main body bar 1, and an end of spring 6 is fixedly connected on the top of backstay 2 and is pressed in the top of backstay 2, and the other end of spring 6 is pressed on hold-down bolt 8, and backstay 2 is applied compressive pre-stress.Sleeve II 17 is enclosed within on adapter sleeve 7 and with adapter sleeve 7 and is slidably matched, sleeve II 17 is provided with bolt hole, clamping screw II 18 screws in bolt hole and withstands on adapter sleeve 7, and sleeve II 17 is fixed on adapter sleeve 7 by clamping screw II 18, and rocking bar 5 is fixedly connected on sleeve II 17.
Sleeve I 16 is enclosed within on main body bar 1 and with main body bar 1 and is slidably matched, be provided with bolt hole on sleeve I 16, the clamping screw I screws in bolt hole and withstands on main body bar 1, and sleeve I 16 is fixed on main body bar 1 by the clamping screw I, and an end of main scale 9 is fixedly connected with sleeve I 16.Main scale 9 is vertical with main body bar 1.Slide measure 10 is arranged on main scale 9 and can slides along main scale 9, slide measure 10 is fixed on main scale 9 by adjusting bolt 19, unscrew and adjust bolt 19, the position of capable of regulating slide measure 10 on main scale 9 screws and adjusts bolt 19 and the position of slide measure 10 on main scale 9 can be fixed.Compasses leg 11 is fixed on slide measure 10 and is parallel with backstay 2, and the end of compasses leg 11 is the setting-out pin of the pencil-lead of can packing into.
In this enforcement, the bottom surface circumference of positioning seat 3 is provided with rubber ring 15, and the crosspoint of right-angled intersection stria is positioned at the center of rubber ring 15.Behind the location, the underrun rubber ring 15 of positioning seat 3 contacts with the picture paper, and increasing friction force in the process of drawing, can effectively avoid positioning seat 3 to be moved on the picture paper.
Matching relationship for backstay 2, adapter sleeve 7, spring 6 and hold-down bolt 8, also can adopt structure shown in Figure 3, the top of backstay 2 has a lateral dimension greater than the limited block 12 of the internal diameter of main body bar 1, the bottom of spring 6 is pressed in the top of backstay 2 by steel ball I 13, the top of spring 6 is pressed on hold-down bolt 8 by steel ball II 14, the two ends of spring 6 are pressed in respectively the top of hold-down bolt 8 and backstay 2 by steel ball, the two ends that can avoid spring 6 directly contacts with the top of hold-down bolt 8 with backstay 2, and reduction rubs.
When using the compasses that this is avoided brlken paper, at first adjust the position height of main scale 9 on main body bar 1 by the clamping screw II, adjust the compressive pre-stress of spring 6 by hold-down bolt 8, adjust compasses supporting leg 11 apart from the distance between backstay 2 by adjusting bolt 19, and then adjust drawn radius of a circle; Then one holds handle 4, utilizes the crosspoint of the right-angled intersection stria on positioning seat 3 bottom surfaces to determine that the center of circle, another hand only need rotating rocker 5 just can draw circle, and the lines that draw are continuous, even thickness, and can not misplace.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (8)
1. avoid the compasses of brlken paper, it is characterized in that: comprise main body bar (1), backstay (2), positioning seat (3), handle (4), rocking bar (5), spring (6), adapter sleeve (7), hold-down bolt (8), main scale (9), slide measure (10) and compasses leg (11);
Described main body bar (1) is hollow structure, and main body bar (1) is enclosed within backstay (2) upward and is slidably matched with backstay (2), and the bottom of described backstay (2) is stretched out main body bar (1) and is fixedly connected with positioning seat (3); Described positioning seat (3) is transparent block, the bottom surface of positioning seat (3) has the right-angled intersection stria, the crosspoint of right-angled intersection stria is positioned on the axis of backstay (2), and described handle (4) is hollow structure, and handle (4) is enclosed within main body bar (1) upward and is slidably matched with main body bar (1);
One end of described adapter sleeve (7) is connected with the top of main body bar (1), and hold-down bolt (8) screws in the other end of adapter sleeve (7); Described spring (6) is arranged in adapter sleeve (7), and a side pressure of spring (6) is at the top of backstay (2), and the other end of spring (6) is pressed on hold-down bolt (8); Rocking bar (5) is fixedly connected with adapter sleeve;
Described main scale (9) is vertical with main body bar (1), and an end of main scale (9) is connected with main body bar (1) and can be along the endwisely slipping of main body bar (1), and it is upper and can slide along main scale (9) that described slide measure (10) is arranged on main scale (9); It is upper and parallel with backstay (2) that described compasses leg (11) is fixed on slide measure (10), and the end of compasses leg (11) is the setting-out pin of the pencil-lead of can packing into.
2. the compasses of avoiding brlken paper according to claim 1, it is characterized in that: an end of described spring (6) is fixedly connected on the top of backstay (2), and the external diameter of spring (6) is greater than the internal diameter of main body bar (1).
3. the compasses of avoiding brlken paper according to claim 1, it is characterized in that: the top of described backstay (2) has a lateral dimension greater than the limited block (12) of the internal diameter of main body bar (1), one end of described spring (6) is pressed in the top of backstay (2) by steel ball I (13), the other end of spring (6) is pressed on hold-down bolt (8) by steel ball II (14).
4. the according to claim 2 or 3 described compasses of avoiding brlken paper, it is characterized in that: the bottom surface circumference of described positioning seat (3) is provided with rubber ring (15), and the crosspoint of described right-angled intersection stria is positioned at the center of rubber ring (15).
5. the according to claim 2 or 3 described compasses of avoiding brlken paper, it is characterized in that: also comprise sleeve I (16), described sleeve I (16) is enclosed within main body bar (1) upward and is slidably matched with main body bar (1), described sleeve I (16) is fixed on main body bar (1) by the clamping screw I, and an end of main scale (9) is fixedly connected with sleeve I (16).
6. the according to claim 2 or 3 described compasses of avoiding brlken paper, it is characterized in that: also comprise sleeve II (17), described sleeve II (17) is enclosed within adapter sleeve (7) upward and is slidably matched with adapter sleeve (7), sleeve II (17) is fixed on adapter sleeve (7) by clamping screw II (18), and rocking bar (5) is fixed on sleeve II (17).
7. the according to claim 2 or 3 described compasses of avoiding brlken paper, it is characterized in that: an end of described adapter sleeve (7) is connected to the top of main body bar (1) by the mode of threaded engagement.
8. the according to claim 2 or 3 described compasses of avoiding brlken paper is characterized in that: described slide measure (10) is fixed on main scale (9) by adjusting bolt (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737565 CN202965691U (en) | 2012-12-28 | 2012-12-28 | Compasses capable of avoiding damaging paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737565 CN202965691U (en) | 2012-12-28 | 2012-12-28 | Compasses capable of avoiding damaging paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202965691U true CN202965691U (en) | 2013-06-05 |
Family
ID=48506811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737565 Expired - Fee Related CN202965691U (en) | 2012-12-28 | 2012-12-28 | Compasses capable of avoiding damaging paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202965691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009885A (en) * | 2012-12-28 | 2013-04-03 | 重庆大学 | Hand-operated type compass without sharp point |
-
2012
- 2012-12-28 CN CN 201220737565 patent/CN202965691U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009885A (en) * | 2012-12-28 | 2013-04-03 | 重庆大学 | Hand-operated type compass without sharp point |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141228 |
|
| EXPY | Termination of patent right or utility model |