CN210889646U - Embrace card formula fastening nut device - Google Patents
Embrace card formula fastening nut device Download PDFInfo
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- CN210889646U CN210889646U CN201921770318.2U CN201921770318U CN210889646U CN 210889646 U CN210889646 U CN 210889646U CN 201921770318 U CN201921770318 U CN 201921770318U CN 210889646 U CN210889646 U CN 210889646U
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Abstract
The utility model discloses a clasping type fastening nut device, which comprises a handle, a locking rotating ring, a guiding slip ring, a guiding pin, a bolt, a split stretching nut and a spring, wherein the handle is fixedly connected with the guiding slip 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 utility model discloses a embrace the mode of card, when meshing with the main bolt, only need will embrace card formula fastening nut device nestification on the main bolt, then promote the pushing hands gently and can screw the nut, saved the strength of the nut of screwing widely. Because the utility model discloses a mode of embracing the card, when meshing with the king bolt, no matter the length of king bolt salient, nested time is the same basically, can save the time of the nut of screwing greatly.
Description
Technical Field
The utility model relates to a tensile nut, especially a embrace card formula fastening nut device.
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.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem that prior art exists, the utility model discloses a simple to operate swiftly saves time the formula of embracing the tensile nut of card.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
a clamping type fastening nut device comprises a handle, a locking rotating ring, a guide sliding ring, a guide pin, a bolt, a split stretching nut and a spring, wherein the handle is fixedly connected with the guide 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 prior rotating nut, the utility model discloses following beneficial effect has:
1. because the utility model discloses a embrace the mode of card, when meshing with the main bolt, only need will embrace card formula fastening nut device nestification on the main bolt, then promote the pushing hands gently and can screw the nut, saved the strength of the nut of screwing widely.
2. Because the utility model discloses a mode of embracing the card, when meshing with the king bolt, no matter the length of king bolt salient, nested time is the same basically, can save the time of the nut of screwing greatly.
3. Because the utility model discloses need not to use and revolve wrong instrument, also be particularly suitable for the restricted occasion of installation space.
Drawings
Fig. 1 is a schematic structural diagram 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 fastening nut device comprises a handle 1, a locking rotary ring 2, a guide sliding ring 3, a guide pin 4, a bolt 5, a split stretching nut and a spring 7, wherein the handle 1 is fixedly connected with the guide sliding 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 utility model discloses an assembly method 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 utility model discloses a use method 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 concept or change within the technical scope of the present invention is all listed as the protection scope of the present invention.
Claims (10)
1. The utility model provides an embrace card formula fastening nut device which characterized in that: the locking device comprises a handle (1), a locking rotating ring (2), a guide sliding ring (3), a guide pin (4), a split stretching nut and a spring (7), wherein the handle (1) is fixedly connected with the guide sliding ring (3); the split stretching nut consists of N pieces of nut clamping jaws (6), two adjacent pieces of nut clamping jaws (6) are connected through springs (7), and the nut clamping jaws (6) of each piece are identical in structure; n guide pins (4) are arranged and fixedly connected with the guide sliding ring (3); 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 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;
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);
and 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.
2. A clasping type fastening nut device as claimed in claim 1, characterized in that: the handle (1) is fixedly connected with the guide sliding ring (3) through a bolt (5).
3. A clasping type fastening nut device as claimed in claim 1, characterized in that: the guide pins (4) are uniformly distributed along the inner side of the guide sliding ring (3), and the axial direction of the guide pins (4) is the radial direction of the split stretching nut.
4. A clasping type fastening nut device as claimed in claim 1, characterized in that: the guide sliding ring (3) is of a circular ring structure, N radial 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).
5. A clasping type fastening nut device as claimed in claim 1, characterized in that: 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).
6. A clasping type fastening nut device as claimed in claim 1, characterized in that: 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).
7. A clasping type fastening nut device as claimed in claim 1, characterized in that: 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).
8. A clasping type fastening nut device as claimed in claim 1, characterized in that: 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.
9. A clasping type fastening nut device as claimed in claim 1, characterized in that: the N is 2-5.
10. A clasping type fastening nut device as claimed in claim 1, characterized in that: and N is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921770318.2U CN210889646U (en) | 2019-10-22 | 2019-10-22 | Embrace card formula fastening nut device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921770318.2U CN210889646U (en) | 2019-10-22 | 2019-10-22 | Embrace card formula fastening nut device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889646U true CN210889646U (en) | 2020-06-30 |
Family
ID=71324110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921770318.2U Active CN210889646U (en) | 2019-10-22 | 2019-10-22 | Embrace card formula fastening nut device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210889646U (en) |
-
2019
- 2019-10-22 CN CN201921770318.2U patent/CN210889646U/en active Active
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