CN211764537U - Middle turning compasses - Google Patents
Middle turning compasses Download PDFInfo
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- CN211764537U CN211764537U CN201921771605.5U CN201921771605U CN211764537U CN 211764537 U CN211764537 U CN 211764537U CN 201921771605 U CN201921771605 U CN 201921771605U CN 211764537 U CN211764537 U CN 211764537U
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Abstract
The utility model discloses a well car compasses, including the compasses head, first connecting pin, the foot is connected to the second, the stitch, the pencil foot, adjusting roller and adjusting screw, first arc mounting groove internalization is provided with first rotary joint, wear to be equipped with first connecting bolt on the first rotary joint, first rotary joint is connected with the stitch, first lock nut connects the one end that first connecting bolt is located the first connecting pin outside, second arc mounting groove internalization is provided with second rotary joint, wear to be equipped with second connecting bolt on the second rotary joint, second rotary joint is connected with the pencil foot, the one end in the second connecting bolt is located the second and connects the foot outside is connected to the second lock nut, the utility model discloses need not to rotate whole compasses when adjusting, keep the posture of original pulling open can accomplish the regulation, it is more convenient to use.
Description
Technical Field
The utility model relates to a stationery field especially relates to a well car compasses.
Background
At present, current well car compasses generally have the compasses head, the stitch, the pencil foot, adjusting roller, adjusting screw and two connection feet, stitch and pencil foot are connected respectively to two connection feet, when well car compasses found immediately, stitch and pencil foot one side of orientation each other are inboard, stitch and pencil foot one side of keeping away from each other are the outside, be front side and rear side with inboard and outside mutually perpendicular's both sides on the horizontal direction, be provided with the lock nut who is used for locking stitch and pencil foot on two front sides or the rear side of connecting the foot respectively, above-mentioned structure has more obvious shortcoming: when current well car compasses were used, the user was earlier both hands and is held between the fingers two respectively and is connected the foot, pulls open two and connects the foot, then inwards bends certain angle with pencil foot and stitch, adjusts lock nut again after buckling and adjusts the position of stitch and pencil foot, because lock nut sets up the front side or the rear side at the connection foot, consequently all need rotate certain angle with well car compasses and still vacate a hand and adjust lock nut simultaneously when adjusting lock nut every time, it is comparatively inconvenient to use.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a convenient to use's well car compasses.
In order to achieve the above purpose, the solution of the present invention is:
a middle turning compass comprises a compass head, a first connecting pin, a second connecting pin, a stitch, a pencil pin, an adjusting roller and an adjusting screw rod, wherein one end of the first connecting pin and one end of the second connecting pin are rotatably arranged in the compass head, the first connecting pin and the second connecting pin are arranged oppositely, one side of the first connecting pin and one side of the second connecting pin, which face each other, are arranged as an inner side, one side of the first connecting pin and one side of the second connecting pin, which are far away from each other, are arranged as an outer side, one end of the first connecting pin and one end of the second connecting pin, which are close to the compass head, are arranged as an upper end, one end of the first connecting pin and one end of the second connecting pin, which are far away from the compass head, are arranged as a lower end, the stitch is detachably arranged on the first connecting pin, the pencil pin is detachably arranged on the second connecting pin, the adjusting roller is fixed in the center of the adjusting screw, the body of rod of adjusting screw with first connecting pin with second connecting pin screwed connection, its characterized in that:
the lower end of the first connecting pin is provided with a first arc-shaped mounting groove, the notch of the first arc-shaped mounting groove is opened towards the inner side, the lower end of the first connecting pin is provided with an arc-shaped end surface, the arc-shaped end surface is provided with a first mounting through hole communicated with the first arc-shaped mounting groove, the bottom of the first arc-shaped mounting groove is provided with a first strip-shaped hole, the cross section of the first strip-shaped hole is arranged along the length direction of the first connecting pin, the first arc-shaped mounting groove is opened along the length direction of the first connecting pin, a first rotary joint matched with the first arc-shaped mounting groove is movably arranged in the first arc-shaped mounting groove, a first connecting bolt is arranged on the first rotary joint in a penetrating manner, the bolt head of the first connecting bolt is positioned on the first rotary joint, and the bolt tail of the first connecting bolt passes through the first strip-shaped hole, the bolt tail of the first connecting bolt is positioned on the outer side of the first connecting pin, the bolt tail of the first connecting bolt is in threaded connection with a first locking nut, and the pin penetrates through the first mounting through hole to be connected with the first rotary joint;
the lower end of the second connecting pin is provided with a second arc-shaped mounting groove, the notch of the second arc-shaped mounting groove is opened towards the inner side, the lower end of the second connecting pin is provided with an arc-shaped end surface, the arc-shaped end surface is provided with a second mounting through hole communicated with the second arc-shaped mounting groove, the bottom of the second arc-shaped mounting groove is provided with a second strip-shaped hole, the cross section of the second strip-shaped hole is arranged along the length direction of the second connecting pin, the second arc-shaped mounting groove is opened along the length direction of the second connecting pin, a second rotary joint matched with the second arc-shaped mounting groove is movably arranged in the second arc-shaped mounting groove, a second connecting bolt is arranged on the second rotary joint in a penetrating manner, the bolt head of the second connecting bolt is positioned on the second rotary joint, and the bolt tail of the second connecting bolt passes through the second strip-shaped hole, the bolt tail of the second connecting bolt is located on the outer side of the second connecting foot, the bolt tail of the second connecting bolt is spirally connected with a second locking nut, and the pencil foot penetrates through the first mounting through hole and is connected with the first rotary joint.
Furthermore, a first connecting hole is formed in the first rotary joint, a first connecting block matched with the first connecting hole is arranged on the pin, the first connecting block is clamped in the first connecting hole, a second connecting hole is formed in the second rotary joint, and a second connecting block matched with the second connecting hole is arranged on the lead pen foot.
Further, the first connecting hole intersects with the first connecting bolt, and the second connecting hole intersects with the second connecting bolt.
Furthermore, a first through groove is formed in the first connecting block, and a second through groove is formed in the second connecting block.
After the structure is adopted, the utility model relates to a well car compasses have following beneficial effect: first lock nut and second lock nut are located the outside of first connecting foot and second connecting foot respectively, during the operation, only need to grasp first lock nut and the outside application of force of second lock nut and can pull open the stitch and the pencil foot of compasses, it can rotate first lock nut and second lock nut and accomplish the regulation to first lock nut and second lock nut to keep original posture, need not to rotate whole compasses and vacate another hand, it can accomplish the regulation to keep the posture of original pulling open the compasses, it is more convenient to use.
Drawings
FIG. 1 is an exploded view of the middle compasses of the present invention;
FIG. 2 is a schematic side view of the first connecting pin and the pin of the middle compass of the present invention;
FIG. 3 is a schematic side view of the second connecting leg and the pencil leg of the middle turning compass of the present invention;
FIG. 4 is a schematic view of a view angle of a first rotary joint of the middle compasses;
FIG. 5 is a schematic view of a view angle of a second rotary joint of the middle compasses;
FIG. 6 is a schematic structural view of another view angle of the first rotary joint of the middle compasses;
FIG. 7 is a schematic structural view of another view angle of the second rotary joint of the middle compasses;
in the figure: 1. the pencil head comprises a compasses head, 21, a first connecting pin, 211, a first arc-shaped mounting groove, 212, a first mounting through hole, 213, a first strip-shaped hole, 22, a pin, 221, a first connecting block, 231, a first connecting hole, 232, a first connecting bolt mounting hole, 233, a first rotary joint main body, 234, a first locking block, 24, a first connecting bolt, 25, a first locking nut, 31, a second connecting pin, 311, a second arc-shaped mounting groove, 312, a second mounting through hole, 313, a second strip-shaped hole, 32, a pencil pin, 321, a second connecting block, 331, a second connecting hole, 332, a second connecting bolt mounting hole, 333, a second rotary joint main body, 334, a second locking block, 34, a second connecting bolt, 35, a second locking nut, 4, an adjusting roller, 5, an adjusting screw rod, 6, a needle head and 7 a pencil head.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
The compasses for middle turning shown in figures 1-7 comprise a compasses head 1, a first connecting pin 21, a pin 22, a second connecting pin 31, a pencil pin 32, an adjusting roller 4 and an adjusting screw 5, wherein one side of the first connecting pin 21 and the second connecting pin 31 facing each other is arranged as an inner side, one side of the first connecting pin 21 and the second connecting pin 31 far away from each other is arranged as an outer side, one end of the first connecting pin 21 and the second connecting pin 31 near the compasses head 1 is arranged as an upper end, and one end of the first connecting pin 21 and the second connecting pin 31 far away from the compasses head 1 is arranged as a lower end.
The one end of foot 31 is connected to the one end of first connecting foot 21 and second all rotates and sets up in compasses head 1, first connecting foot 21 and the relative setting of second connecting foot 31, adjusting roller 4 fixed cover is established at adjusting screw 5 central authorities, adjusting screw 5's the body of rod is worn to establish on first connecting foot 21 and second connecting foot 31, and is specific, the internal thread hole has all been seted up on first connecting foot 21 and second connecting foot 31, adjusting screw 5 is connected foot 31 screwed connection with first connecting foot 21 and second, compasses head 1, first connecting foot 21, foot 31 is connected to the second, the connected mode of adjusting roller 4 and adjusting screw 5 is unanimous with current well car compasses, here is no longer repeated.
The lower end of the first connecting pin 21 is provided with a first arc-shaped mounting groove 211, the notch of the first arc-shaped mounting groove 211 faces the inner side, the lower end of the first connecting pin 21 is provided with an arc-shaped end face, the arc-shaped end face is provided with a first mounting through hole 212 communicated with the first arc-shaped mounting groove 211, the bottom of the first arc-shaped mounting groove 211 is provided with a first strip-shaped hole 213, the first strip-shaped hole 213 is a through hole, the cross section of the first strip-shaped hole 213 is arranged along the length direction of the first connecting pin, the first arc-shaped mounting groove 211 is arranged along the length direction of the first connecting pin 21, a first rotary joint matched with the first arc-shaped mounting groove 211 is movably arranged in the first arc-shaped mounting groove 211, the cross section of the first rotary joint is a sector face, the first rotary joint is provided with an arc-shaped face matched with the bottom of the first arc-shaped mounting groove 211 and a plane oppositely, specifically, the first rotary joint is provided with a first connection hole 231 and a first connection bolt installation hole 232, the first connection hole 231 is formed along the length direction of the plane on the first rotary joint, the first connection bolt installation hole 232 is communicated with the first connection hole 231 along the first and second connection bolt installation holes 232, the first connection bolt 24 is inserted into the first connection bolt installation hole 232, the first connection bolt 24 is provided with a bolt head and a bolt tail, the bolt head of the first connection bolt 24 is positioned on the first rotary joint, the bolt tail of the first connection bolt 24 passes through the first strip-shaped hole 213, the bolt tail of the first connection bolt 24 is positioned outside the first connection pin 21, the bolt tail of the first connection bolt 24 is sleeved with the first locking nut 25, the pin 22 passes through the first installation through hole 212 to be connected with the first rotary joint, the pin 22 is provided with a first connection block 221 matched with the first connection hole 231, the lower end of the pin 22 is provided with a needle 6 for a conventional compass.
The lower end of the second connecting pin 31 is provided with a second arc-shaped mounting groove 311, the notch of the second arc-shaped mounting groove 311 faces the inner side, the lower end of the second connecting pin 31 is provided with an arc-shaped end surface, the arc-shaped end surface is provided with a second mounting through hole 312 communicated with the second arc-shaped mounting groove 311, the bottom of the second arc-shaped mounting groove 311 is provided with a second strip-shaped hole 313, the second strip-shaped hole 313 is a through hole, the section of the second strip-shaped hole 313 is arranged along the length direction of the second connecting pin 31, the second arc-shaped mounting groove 311 is arranged along the length direction of the second connecting pin 31, a second rotary joint matched with the second arc-shaped mounting groove 311 is movably arranged in the second arc-shaped mounting groove 311, the cross section of the second rotary joint is a sector surface, the second rotary joint is provided with an arc-shaped surface matched with the bottom of the second arc-, the second rotary joint is provided with a second connecting bolt 34 in a penetrating manner, specifically, the second rotary joint is provided with a second connecting hole 331 and a second connecting bolt mounting hole 332, the second connecting hole 331 is formed along the length direction of the rectangular surface on the second rotary joint, the second connecting bolt mounting hole 332 is orthogonally arranged along the rectangular surface on the second rotary joint, the second connecting bolt mounting hole 332 is communicated with the second connecting hole 331, the second connecting bolt 34 is arranged in the second connecting bolt mounting hole 332 in a penetrating manner, the second connecting bolt 34 is provided with a bolt head and a bolt tail, the bolt head of the second connecting bolt 34 is positioned on the second rotary joint, the bolt tail of the second connecting bolt 34 passes through the second strip-shaped hole 313, the bolt tail of the second connecting bolt 34 is positioned on the outer side of the second connecting pin 31, and a second locking nut 35 is sleeved on the bolt tail of the second connecting bolt 34, the pencil foot 32 penetrates through the second mounting through hole 312 to be connected with the second rotary joint, a second connecting block 321 matched with the second connecting hole 331 is arranged on the pencil foot 32, and a pencil head 7 for conventional compasses is arranged at the lower end of the pencil foot 32.
Preferably, the first connection hole 231 intersects with the first connection bolt 24, the first connection block 221 is provided with a first through groove, when the first connection block 221 is clamped in the first connection hole 231, the first connection bolt 24 passes through the first through groove, and the first connection block 221 is not limited by the first connection bolt 24 due to the design of the first through groove, so that the pins 22 can be directly inserted and pulled out conveniently.
Preferably, the second connecting hole 331 is intersected with the second connecting bolt 34, a second through groove is formed in the second connecting block 321, when the second connecting block 321 is embedded in the second connecting hole 331 in a clamping manner, the second connecting bolt 34 penetrates through the second through groove, and the second connecting block 321 is not limited by the second connecting bolt 34 due to the design of the second through groove, so that the lead pen foot 32 can be directly inserted and pulled out conveniently.
Preferably, the first rotary joint includes a first joint main body 233 and a first locking block 234 assembled together, the first joint main body 233 is provided with a first locking block mounting groove for mounting the first locking block 234, the first locking block mounting groove is communicated with the first connection hole 231, the first locking block 234 has a first protrusion at one side, the first locking block 234 is provided with a first locking through hole, the aperture of the first locking through hole is slightly smaller than the diameter of the bolt head of the first connecting bolt, the first convex part faces the first locking block mounting groove, when the pin 22 is mounted on the first rotary joint and the first rotary joint is mounted in the first rotary joint mounting groove 211, the first locking nut lock 25 locks the first connecting bolt 24, and the first protrusion of the first locking piece 234 abuts against the first connecting piece 221 to lock the pin 22.
Preferably, the second rotary joint comprises a second joint body 333 and a second locking block 334 assembled together, the second joint body 333 is provided with a second locking block mounting groove for mounting the second locking block 334, the second locking block installation groove is communicated with the second connection hole 331, the second locking block 334 has the second protrusion at one side, the second locking block 334 is provided with a second locking through hole, the diameter of the second locking through hole is slightly smaller than the diameter of the bolt head of the second connecting bolt 34, when the pencil pin 32 is installed on the second rotary joint and the second rotary joint is installed in the second rotary joint installation groove 311, the second locking nut lock 35 locks the second connecting bolt 34, and the second locking block 334 abuts against the second connecting block 321 to lock the pencil pin 32.
The above embodiments and drawings do not limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be considered as departing from the scope of the present invention.
Claims (4)
1. A middle turning compass comprises a compass head, a first connecting pin, a second connecting pin, a stitch, a pencil pin, an adjusting roller and an adjusting screw rod, wherein one end of the first connecting pin and one end of the second connecting pin are rotatably arranged in the compass head, the first connecting pin and the second connecting pin are arranged oppositely, one side of the first connecting pin and one side of the second connecting pin, which face each other, are arranged as an inner side, one side of the first connecting pin and one side of the second connecting pin, which are far away from each other, are arranged as an outer side, one end of the first connecting pin and one end of the second connecting pin, which are close to the compass head, are arranged as an upper end, one end of the first connecting pin and one end of the second connecting pin, which are far away from the compass head, are arranged as a lower end, the stitch is detachably arranged on the first connecting pin, the pencil pin is detachably arranged on the second connecting pin, the adjusting roller is fixed in the center of the adjusting screw, the body of rod of adjusting screw with first connecting pin with second connecting pin screwed connection, its characterized in that:
the lower end of the first connecting pin is provided with a first arc-shaped mounting groove, the notch of the first arc-shaped mounting groove is opened towards the inner side, the lower end of the first connecting pin is provided with an arc-shaped end surface, the arc-shaped end surface is provided with a first mounting through hole communicated with the first arc-shaped mounting groove, the bottom of the first arc-shaped mounting groove is provided with a first strip-shaped hole, the cross section of the first strip-shaped hole is arranged along the length direction of the first connecting pin, the first arc-shaped mounting groove is opened along the length direction of the first connecting pin, a first rotary joint matched with the first arc-shaped mounting groove is movably arranged in the first arc-shaped mounting groove, a first connecting bolt is arranged on the first rotary joint in a penetrating manner, the bolt head of the first connecting bolt is positioned on the first rotary joint, and the bolt tail of the first connecting bolt passes through the first strip-shaped, the bolt tail of the first connecting bolt is positioned on the outer side of the first connecting pin, the bolt tail of the first connecting bolt is in threaded connection with a first locking nut, and the pin penetrates through the first mounting through hole to be connected with the first rotary joint;
the lower end of the second connecting pin is provided with a second arc-shaped mounting groove, the notch of the second arc-shaped mounting groove is opened towards the inner side, the lower end of the second connecting pin is provided with an arc-shaped end surface, the arc-shaped end surface is provided with a second mounting through hole communicated with the second arc-shaped mounting groove, the bottom of the second arc-shaped mounting groove is provided with a second strip-shaped hole, the cross section of the second strip-shaped hole is arranged along the length direction of the second connecting pin, the second arc-shaped mounting groove is opened along the length direction of the second connecting pin, a second rotary joint matched with the second arc-shaped mounting groove is movably arranged in the second arc-shaped mounting groove, a second connecting bolt is arranged on the second rotary joint in a penetrating manner, the bolt head of the second connecting bolt is positioned on the second rotary joint, and the bolt tail of the second connecting bolt passes through the second strip-shaped hole, the bolt tail of the second connecting bolt is located on the outer side of the second connecting foot, the bolt tail of the second connecting bolt is spirally connected with a second locking nut, and the pencil foot penetrates through the first mounting through hole and is connected with the first rotary joint.
2. The center turning compass as claimed in claim 1, wherein: the pencil lead is characterized in that a first connecting hole is formed in the first rotary joint, a first connecting block matched with the first connecting hole is arranged on the pin, the first connecting block is clamped and embedded in the first connecting hole, a second connecting hole is formed in the second rotary joint, and a second connecting block matched with the second connecting hole is arranged on the pencil lead.
3. A center turning compass according to claim 2, wherein: the first connecting hole intersects with the first connecting bolt, and the second connecting hole intersects with the second connecting bolt.
4. A center turning compass according to claim 2, wherein: the first connecting block is provided with a first through groove, and the second connecting block is provided with a second through groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921771605.5U CN211764537U (en) | 2019-10-22 | 2019-10-22 | Middle turning compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921771605.5U CN211764537U (en) | 2019-10-22 | 2019-10-22 | Middle turning compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211764537U true CN211764537U (en) | 2020-10-27 |
Family
ID=72934377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921771605.5U Active CN211764537U (en) | 2019-10-22 | 2019-10-22 | Middle turning compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211764537U (en) |
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2019
- 2019-10-22 CN CN201921771605.5U patent/CN211764537U/en active Active
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