CN110792675B - Embrace tensile nut mechanism of card formula - Google Patents
Embrace tensile nut mechanism of card formula Download PDFInfo
- Publication number
- CN110792675B CN110792675B CN201911003178.0A CN201911003178A CN110792675B CN 110792675 B CN110792675 B CN 110792675B CN 201911003178 A CN201911003178 A CN 201911003178A CN 110792675 B CN110792675 B CN 110792675B
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- ring
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- 210000000078 claw Anatomy 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/08—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
- F16B37/0807—Nuts engaged from the end of the bolt, e.g. axially slidable nuts
- F16B37/0857—Nuts engaged from the end of the bolt, e.g. axially slidable nuts with the threaded portions of the nut engaging the thread of the bolt by the action of one or more springs or resilient retaining members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention discloses a clamping type stretching nut mechanism which comprises a handle, a locking rotating ring, a guiding sliding ring, a guiding pin, a bolt, a split stretching nut and a spring, wherein the handle is fixedly connected with the guiding sliding ring through the bolt; the split stretching nut consists of N pieces of nut jaws, and two adjacent pieces of nut jaws are connected through a spring; the guide pins are uniformly distributed along the inner side of the guide sliding ring, and the other ends of the guide pins penetrate through the guide holes of the nut jaws and are in clearance fit with the nut jaws. Because the invention adopts the holding and clamping mode, when the nut is meshed with the main bolt, the holding and clamping type nut stretching mechanism is nested on the main bolt, and then the nut can be screwed by slightly pushing the push handle, thereby greatly saving the force for screwing the nut. Because the invention adopts the holding and clamping mode, when the nut is meshed with the main bolt, the nesting time is basically the same no matter the length of the protruding part of the main bolt, and the time for screwing the nut can be greatly saved.
Description
Technical Field
The invention relates to a stretching nut, in particular to a clamping type stretching nut mechanism.
Background
At present, screw nuts are used in bolt fastening. However, such a screw nut has the following problems:
when the screwing nut is used, the screwing nut needs to be screwed downwards to a joint plane from the top of the bolt, due to different working conditions, the bolt can stretch out of the flange face for a long distance under some working conditions, and at the moment, when the traditional screwing nut is used for fastening, long time can be consumed, and meanwhile, manpower is wasted.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a clamping type stretching nut which is convenient and quick to install and saves time and labor.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a clamping type stretching nut mechanism comprises a handle, a locking rotating ring, a guiding sliding ring, a guiding pin, a bolt, a split stretching nut and a spring, wherein the handle is fixedly connected with the guiding sliding ring through the bolt; the split stretching nut consists of N pieces of nut jaws, two adjacent pieces of nut jaws are connected through a spring, and the nut jaws of each piece are identical in structure; n guide pins are uniformly distributed along the inner side of the guide sliding ring and fixedly connected with the guide sliding ring, and the axial direction of each guide pin is the radial direction of the split stretching nut; the other end of the guide pin penetrates through the guide hole of the nut jaw and is in clearance fit with the nut jaw;
the inner ring surface of the nut claw is provided with threads matched with the main bolt, the outer ring surface is of a step structure, the lower part of the outer ring surface is a large circular ring surface, the middle part of the outer ring surface is an S-shaped cambered surface, and the upper part of the outer ring surface is a small circular ring surface;
n bosses are uniformly distributed on the inner side of the locking rotating ring, and the inner side surface of each boss is tangent to the S-shaped cambered surface in the middle of the corresponding nut jaw;
a gap is formed between the lower end face of the guide slip ring and the upper end face of the locking rotating ring, and the guide slip ring has a relative rotation function;
the guiding slip ring controls the nut jaws to move outwards or inwards at the same time through the guiding pin;
the spring provides thrust for the nut jaws to move separately, so that the nut jaws move separately along the annular direction at the same time.
Furthermore, the guide slip ring is of a circular ring structure, N radial pin holes are uniformly distributed in the side face, N axial bolt through holes are uniformly distributed in the top face, and the guide pins are in interference fit with the pin holes.
Furthermore, the locking rotating ring is of a circular ring structure, and a door type pushing handle is arranged on the upper end face of the circular ring structure.
Furthermore, two radial side surfaces of the nut jaw are respectively provided with two spring holes, and the spring holes on the two sides are symmetrical about the radial central line of the nut jaw; and two ends of the spring are respectively and fixedly arranged in the spring holes corresponding to the two adjacent nut jaws.
Furthermore, the handle is of a three-ring structure, the cross section of the upper ring is circular, the cross sections of the middle ring and the lower ring are both rectangular, the upper ring is fixedly connected with the middle ring through a connecting rod, and the lower end face of the middle ring is fixedly connected with the upper end face of the lower ring; the outer diameters of the three circular rings are the same, the inner diameter of the middle circular ring is smaller than that of the lower circular ring, the inner diameter of the lower circular ring is the same as the outer diameter of the guide slip ring, and the lower circular ring is nested on the outer side of the guide slip ring; n bolt through holes are uniformly distributed in the middle ring along the circumferential direction, and the positions and the sizes of the bolt through holes are matched with the bolt holes in the upper end face of the guide sliding ring.
Furthermore, the S-shaped arc surface of the nut jaw consists of three sections of circular arc surfaces, the radius R1 of the first section of arc surface is larger than the radius of the small circular ring surface and smaller than the radius of the large circular ring surface, and the circle center is concentric with the large circular ring surface; the radius R2 of the second section of arc surface is smaller than the radius R1 of the first section of arc surface, the joint is tangent with the first section of arc surface, and the circle center is positioned at the inner side; the radius R3 of the third section of arc surface is smaller than the radius R2 of the second section of arc surface, the joint is tangent with the second section of arc surface, and the circle center is positioned at the outer side; the joint of the third section of arc surface and the second section of arc surface is positioned on the small circular ring surface.
Further, the bolt is an M3 bolt.
Further, the N is 2-5.
Further, N is 3.
Compared with the existing rotating nut, the invention has the following beneficial effects:
1. because the invention adopts the holding and clamping mode, when the nut is meshed with the main bolt, the holding and clamping type nut stretching mechanism is nested on the main bolt, and then the nut can be screwed by slightly pushing the push handle, thereby greatly saving the force for screwing the nut.
2. Because the invention adopts the holding and clamping mode, when the nut is meshed with the main bolt, the nesting time is basically the same no matter the length of the protruding part of the main bolt, and the time for screwing the nut can be greatly saved.
3. The invention is particularly suitable for occasions with limited installation space because the invention does not need to use a screwing tool.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a longitudinal sectional view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic view of the structure of the locking rotary ring.
Fig. 5 is a schematic view of the structure of the guiding slip ring.
Fig. 6 is a schematic view of a nut jaw structure.
Fig. 7 is a schematic view of the structure of the handle.
In the figure: 1. the handle, 2, the locking rotating ring, 3, the guide sliding ring, 4, the guide pin, 5, the bolt, 6, the nut jaw, 7, the spring, 8, the main bolt, 9, the pushing handle, 10, the boss, 11, the pin hole, 12, the bolt hole, 13 and the spring hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings. As shown in fig. 1-7, a clasping type stretching nut mechanism comprises a handle 1, a locking rotary ring 2, a guiding slip ring 3, a guiding pin 4, a bolt 5, a split stretching nut and a spring 7, wherein the handle 1 is fixedly connected with the guiding slip ring 3 through the bolt 5; the split stretching nut consists of N pieces of nut jaws 6, two adjacent pieces of nut jaws 6 are connected through a spring 7, and the nut jaws 6 of each piece are identical in structure; n guide pins 4 are uniformly distributed along the inner side of the guide sliding ring 3 and fixedly connected with the guide sliding ring 3, and the axial direction of each guide pin 4 is the radial direction of the split stretching nut; the other end of the guide pin 4 penetrates through a guide hole of the nut jaw 6 and is in clearance fit with the nut jaw 6;
the inner ring surface of the nut claw 6 is provided with threads matched with the main bolt 8, the outer ring surface is of a step structure, the lower part of the outer ring surface is a large circular ring surface, the middle part of the outer ring surface is an S-shaped cambered surface, and the upper part of the outer ring surface is a small circular ring surface;
a gap is formed between the lower end face of the guide slip ring 3 and the upper end face of the locking rotating ring 2, and the guide slip ring has a relative rotation function;
the guiding slip ring 3 controls the nut jaws 6 to move outwards or inwards simultaneously through the guiding pins 4;
the spring 7 provides thrust for the nut jaws 6 to separate, so that the nut jaws 6 simultaneously move in the annular direction.
Furthermore, the guide slip ring 3 is of a circular ring structure, N radial pin holes 11 are uniformly distributed on the side surface, N axial bolt through holes are uniformly distributed on the top surface, and the guide pin 4 is in interference fit with the pin holes 11.
Furthermore, the locking rotating ring 2 is of a circular ring structure, and a door type pushing handle 9 is arranged on the upper end face of the circular ring structure.
Furthermore, two radial side surfaces of the nut jaw 6 are respectively provided with two spring holes 13, and the spring holes 13 on the two sides are symmetrical about the radial central line of the nut jaw 6; two ends of the spring 7 are respectively and fixedly arranged in the spring holes 13 corresponding to the two adjacent nut jaws 6.
Further, the handle 1 is a three-ring structure, the cross section of the upper ring is circular, the cross sections of the middle and lower rings are both rectangular, the upper ring is fixedly connected with the middle ring through a connecting rod, and the lower end surface of the middle ring is fixedly connected with the upper end surface of the lower ring; the outer diameters of the three circular rings are the same, the inner diameter of the middle circular ring is smaller than that of the lower circular ring, the inner diameter of the lower circular ring is the same as the outer diameter of the guide slip ring 3, and the lower circular ring is nested on the outer side of the guide slip ring 3; n bolt through holes are uniformly distributed in the middle ring along the circumferential direction, and the positions and the sizes of the bolt through holes are matched with the bolt holes 12 on the upper end face of the guide sliding ring 3.
Furthermore, the S-shaped arc surface of the nut jaw 6 consists of three sections of circular arc surfaces, the radius R1 of the first section of arc surface is larger than the radius of the small circular ring surface and smaller than the radius of the large circular ring surface, and the circle center is concentric with the large circular ring surface; the radius R2 of the second section of arc surface is smaller than the radius R1 of the first section of arc surface, the joint is tangent with the first section of arc surface, and the circle center is positioned at the inner side; the radius R3 of the third section of arc surface is smaller than the radius R2 of the second section of arc surface, the joint is tangent with the second section of arc surface, and the circle center is positioned at the outer side; the joint of the third section of arc surface and the second section of arc surface is positioned on the small circular ring surface.
Further, the bolt 5 is an M3 bolt.
Further, the N is 2-5.
Further, N is 3.
The assembly method of the invention is as follows:
A. inserting two ends of the spring 7 into corresponding spring holes 13 of two adjacent nut jaws 6 respectively;
B. sleeving the locking rotating ring 2 on a middle ring of the nut jaw 6 and enabling the locking rotating ring to be tangent to the S-shaped cambered surface;
C. sleeving the guide sliding ring 3 on an upper ring of the nut jaw 6, and enabling the guide pin 4 to penetrate through a pin hole 11 on the nut jaw 6 and be fixed in the pin hole 11 of the guide sliding ring 3;
D. the handle 1 is fixed to the bolt hole 12 of the guide slip ring 3 by the bolt 5.
The using method of the invention is as follows:
A. one hand holds the handle 1, and the other hand pushes the locking rotating ring 2 to rotate anticlockwise; the boss 10 is driven to slide from the first section of arc surface of the S-shaped arc surface to the connection part of the second section of arc surface and the third section of arc surface; during the sliding process, the spring 7 arranged between the nut jaws 6 can push the nut jaws 6 to move outwards simultaneously;
B. the clamping type stretching nut penetrates through the main bolt 8 and is placed on the binding surface;
C. one hand holds the handle 1, and the other hand pushes the locking rotating ring 2 to rotate clockwise relative to the handle 1; the boss 10 is driven to slide to the first section of arc surface from the connection part of the second section of arc surface and the third section of arc surface of the S-shaped arc surface; in the sliding process, the nut claws 6 enable the N-clack nut claws 6 to simultaneously clamp the main bolt 8 under the guiding action of the guide pin 4.
The present invention is not limited to the embodiment, and any equivalent idea or change within the technical scope of the present invention is to be regarded as the protection scope of the present invention.
Claims (6)
1. A clamping type stretching nut mechanism comprises a handle (1), a locking rotating ring (2), a bolt (5), split stretching nuts and springs (7), wherein each split stretching nut consists of N nut jaws (6), two adjacent nut jaws (6) are connected through the springs (7), and the nut jaws (6) of each split are identical in structure; the handle (1) is fixedly connected with the guide sliding ring (3) through a bolt (5); n guide pins (4) are uniformly distributed on the inner side of the guide sliding ring (3), the N guide pins (4) are fixedly connected with the guide sliding ring (3), and the axial direction of each guide pin (4) is the radial direction of the split stretching nut; the other end of the guide pin (4) penetrates through a guide hole of the nut jaw (6) and is in clearance fit with the nut jaw (6);
the method is characterized in that: the inner ring surface of the nut claw (6) is provided with a thread matched with the main bolt (8), the outer ring surface is of a step structure, the lower part of the outer ring surface is a large circular ring surface, the middle part of the outer ring surface is an S-shaped cambered surface, and the upper part of the outer ring surface is a small circular ring surface; the S-shaped arc surface of the nut jaw (6) consists of three sections of circular arc surfaces, the radius R1 of the first section of arc surface is larger than the radius of the small circular ring surface and smaller than the radius of the large circular ring surface, and the circle center is concentric with the large circular ring surface; the radius R2 of the second section of arc surface is smaller than the radius R1 of the first section of arc surface, the joint is tangent with the first section of arc surface, and the circle center is positioned at the inner side of the small circular ring surface; the radius R3 of the third section of arc surface is smaller than the radius R2 of the second section of arc surface, the joint is tangent with the second section of arc surface, and the circle center is positioned at the outer side of the small circular ring surface; the joint of the third section of arc surface and the second section of arc surface is positioned on the small circular ring surface;
n bosses (10) are uniformly distributed on the inner side of the locking rotating ring (2), and the inner side surface of each boss (10) is tangent to the S-shaped cambered surface in the middle of the corresponding nut jaw (6);
a gap is formed between the lower end surface of the guide slip ring (3) and the upper end surface of the locking rotating ring (2) and the guide slip ring has a relative rotation function;
the guiding slip ring (3) controls the nut jaws (6) to move outwards or inwards simultaneously through the guiding pin (4);
the spring (7) provides thrust for the nut jaws (6) to move separately, so that the nut jaws (6) move separately in the annular direction simultaneously;
the locking rotating ring (2) is of a circular ring structure, and the upper end face of the circular ring structure is provided with a door type pushing handle (9);
the handle (1) is of a three-ring structure, the cross section of the upper ring is circular, the cross sections of the middle ring and the lower ring are both rectangular, the upper ring is fixedly connected with the middle ring through a connecting rod, and the lower end face of the middle ring is fixedly connected with the upper end face of the lower ring; the outer diameters of the three circular rings are the same, the inner diameter of the middle circular ring is smaller than that of the lower circular ring, the inner diameter of the lower circular ring is the same as the outer diameter of the guide sliding ring (3), and the lower circular ring is nested on the outer side of the guide sliding ring (3); n bolt through holes are uniformly distributed in the middle ring along the circumferential direction, and the positions and the sizes of the bolt through holes are matched with the bolt holes (12) in the upper end face of the guide sliding ring (3).
2. A cradle clamp type pull nut mechanism as set forth in claim 1, wherein: the guide sliding ring (3) is of a circular ring structure, N pin holes (11) are uniformly distributed in the side surface, N axial bolt through holes are uniformly distributed in the top surface, and the guide pins (4) are in interference fit with the pin holes (11).
3. A cradle clamp type pull nut mechanism as set forth in claim 1, wherein: two radial side surfaces of the nut jaw (6) are respectively provided with two spring holes (13), and the spring holes (13) on the two sides are symmetrical about the radial central line of the nut jaw (6); and two ends of the spring (7) are respectively and fixedly arranged in the spring holes (13) corresponding to the two adjacent nut jaws (6).
4. A cradle clamp type pull nut mechanism as set forth in claim 1, wherein: the bolt (5) is an M3 bolt.
5. A cradle clamp type pull nut mechanism as set forth in claim 1, wherein: the N is 2-5.
6. A cradle clamp type pull nut mechanism as set forth in claim 1, wherein: and N is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003178.0A CN110792675B (en) | 2019-10-22 | 2019-10-22 | Embrace tensile nut mechanism of card formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003178.0A CN110792675B (en) | 2019-10-22 | 2019-10-22 | Embrace tensile nut mechanism of card formula |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110792675A CN110792675A (en) | 2020-02-14 |
| CN110792675B true CN110792675B (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911003178.0A Active CN110792675B (en) | 2019-10-22 | 2019-10-22 | Embrace tensile nut mechanism of card formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110792675B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618792B (en) * | 2020-05-20 | 2024-06-04 | 大连泰凯工业有限公司 | Immersed type quick clamping and stretching nut mechanism and use method thereof |
| CN115231003B (en) * | 2022-09-20 | 2023-03-10 | 北京宇航系统工程研究所 | Satellite-rocket connecting and separating mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1343136A1 (en) * | 1986-02-25 | 1987-10-07 | Предприятие П/Я М-5554 | Quick-acting nut |
| US4930961A (en) * | 1988-12-23 | 1990-06-05 | Weis Charles W | Quick lock and release fastener |
| DE4011414A1 (en) * | 1990-04-09 | 1991-02-21 | Herbert Hummel | Metal or plastic threaded nut in two threaded half shells - has a sleeve surrounding its inner thread, and flexible hinge strip, and cylindrical pin |
| AU2015367298B2 (en) * | 2014-12-19 | 2020-04-09 | Engentus Pty Ltd | Segmented nut |
| CN207261427U (en) * | 2017-10-13 | 2018-04-20 | 襄阳五二五泵业有限公司 | One kind point half formula handling nut |
-
2019
- 2019-10-22 CN CN201911003178.0A patent/CN110792675B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110792675A (en) | 2020-02-14 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A clamping type stretching nut mechanism Effective date of registration: 20230323 Granted publication date: 20210326 Pledgee: China Construction Bank Corporation Dalian Free Trade Zone sub branch Pledgor: DALIAN TECHTENSION INDUSTRIAL Co.,Ltd. Registration number: Y2023210000051 |
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