CN208870907U - A kind of one-directional rotation nut and its loose-proof screw - Google Patents
A kind of one-directional rotation nut and its loose-proof screw Download PDFInfo
- Publication number
- CN208870907U CN208870907U CN201821504460.8U CN201821504460U CN208870907U CN 208870907 U CN208870907 U CN 208870907U CN 201821504460 U CN201821504460 U CN 201821504460U CN 208870907 U CN208870907 U CN 208870907U
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- Prior art keywords
- nut
- retaining
- lead screw
- directional rotation
- single direction
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Abstract
The utility model discloses a kind of one-directional rotation nut and its loose-proof screws, belong to machine components technical field, solve the problems, such as that normal screws are easy to appear loosening；Loose-proof screw includes one-directional rotation nut and fluting lead screw, one-directionally rotating nut includes slotted nut, rotating cylinder, single direction rotation ring and locking card, retaining teeth are installed in the pilot hole of single direction rotation ring, the outer end side of retaining teeth is equipped with oblique angle, the other side is equipped with right angle, the oblique angle of retaining teeth is in contact with the oblique angle of one-directional rotation tooth, locking card is connected with single direction rotation ring, structure is simple, it is easy to assembly, rotation locking card II is caught in the retaining sliding slot on fluting lead screw, when slotted nut reversely rotates, one-directional rotation tooth is engaged with retaining teeth thereon, so that slotted nut can not rotate backward, realize the retaining of slotted nut；Locking card II is taken out out of back skating slot, nut assembly is rotated integrally and moves backward and can be removed from fluting lead screw, it is easy to operate.
Description
Technical field
The utility model relates to machine component field, it is specifically related to a kind of one-directional rotation nut and its loose-proof screw.
Background technique
With the rapid development of industry, we are consequently increased the demand and requirement to the fastening between workpiece, and screw is made
It is industrial necessity indispensable in daily life for most common fastener, especially in the automobile manufacture industries such as also
In, it needing for various components to be installed together, this is just needed using a large amount of screw, and normal screws are easy to appear loosening,
It needs that components are installed with loose-proof screw, existing loose-proof screw needs to use locking glue in use
Cooperate screw to prevent from loosening, increases the production cost of loose-proof screw, reduce working efficiency, make the installation of screw more
Trouble, wastes plenty of time and the energy of user.
Chinese patent CN207145418U discloses a kind of loose-proof screw, including bolt, nut and cap card, bolt and spiral shell
Cap thread is cooperatively connected, and opens up upwards in bolt axle fluted, radially offers through-hole in nut, cap card includes middle empty calorie
Set, card needle, spring and baffle, hollow cutting ferrule are embedded in through-hole, and spring one end is fixed on the end cap of hollow cutting ferrule, the other end and position
In the baffle connection in hollow cutting ferrule, after card needle inner end passes through hollow cutting ferrule and through-hole, it is inserted into groove.In the utility model
In, when nut is rotated in place it is rear when, under the action of the spring, the inner end of card needle is tightly withstood in bolt indentation card needle, make nut,
Bolt cannot all rotate, and effectively prevent nut, bolt looseness, but this loose-proof screw is in operation, needs volume
The outer installation for carrying out card needle, it is inconvenient for operation, during tightening, it can not accomplish real-time retaining, it can only be after screwing
The problem of carrying out retaining operation, being unable to alignment indentation there is also card needle, therefore we provide a kind of loose-proof screw, it is intended to it solves
Above-mentioned problem.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of one-directional rotation nut and its preventing
Unscrewed screw, to solve the problems in above-mentioned background technique.
To achieve the above object, the utility model provides the following technical solutions:
A kind of one-directional rotation nut, including slotted nut, rotating cylinder, single direction rotation ring and locking card, the slotted nut
Lead screw nut is bolted to connection with one-directional rotation tooth lower end, and the slotted nut side connects rotating cylinder, outside rotating cylinder
The slotted nut side wall of side is equipped with several one-directional rotation teeth, is assembled with single direction rotation ring on the outside of rotating cylinder, single direction rotation ring
Retaining teeth are installed, retaining teeth are in contact with one-directional rotation tooth, and locking card is connected with single direction rotation ring in pilot hole.
As further program of the utility model, the slotted nut is outer-hexagonal nut, slotted nut and rotating cylinder
Integral molding.
As further program of the utility model, the one-directional rotation tooth is same along the slotted nut on the outside of rotating cylinder
Circumferential equidistantly distributed one-directionally rotates the same of tooth and is equipped with oblique angle on one side, and another side is right angle, one-directionally rotates the oblique of same one side of tooth
Angle is 45 °, and the outer end side of retaining teeth is equipped with oblique angle, and the other side is equipped with right angle, and the oblique angle of the outer end side of retaining teeth is
45 °, the oblique angle of retaining teeth is in contact with the oblique angle of one-directional rotation tooth.
As further program of the utility model, the same of one-directional rotation tooth is equipped with circular arc on one side, and another side is straight
Angle, the outer end side of retaining teeth are equipped with circular arc, and the other side is equipped with right angle, the circular arc of retaining teeth and the circular arc of one-directional rotation tooth
It is in contact.
As further program of the utility model, the single direction rotation ring is opposite with tooth is one-directionally rotated on slotted nut
Side offers pilot hole, and retaining teeth are equipped in pilot hole, are equipped with spring in the pilot hole of retaining teeth one end, assembly
The quantity in hole is 3 and is equipped with the baffle of retaining teeth on the outside of the same circumferential equidistantly distributed of single direction rotation ring, pilot hole.
As further program of the utility model, retaining ring is offered on the rotating cylinder of the other side of the single direction rotation ring
Card slot is equipped with retaining ring in retaining ring card slot.
As further program of the utility model, the locking card includes locking card I, articulated shaft and locking card II, list
It is connected with locking card I to the other side of rotating ring, single direction rotation ring and one end of locking card I for welding or are clamped, locking card I
The other end is hinged by one end of articulated shaft and locking card II.
A kind of loose-proof screw, including one-directional rotation nut further include fluting lead screw, one end welding of the fluting lead screw
There is lead screw nut, the side of the other end for lead screw of slotting offers retaining sliding slot, is equipped with inside the slotted nut and rotating cylinder
Lead screw through-hole, fluting lead screw are threaded through in lead screw through-hole, and slotted nut and rotating cylinder inner wall are equipped with internal screw thread, internal screw thread with open
External screw thread is mutually engaged on slot lead screw.
As further program of the utility model, the quantity of the retaining sliding slot is at least 1, the width of locking card II
It is equal with the width of retaining sliding slot.
As further program of the utility model, locking tooth is not limited to inclination, or arc-shaped or other shapes
Shape.
In conclusion the utility model has the advantages that compared with prior art
The utility model structure is simple, easy to assembly, when needing cross-notching nut driving retaining, need to only rotate locking card
II be caught in fluting lead screw on retaining sliding slot in, nut assembly integrally moves forward, locking card II along retaining sliding slot forward
Sliding；When slotted nut reversely rotates, tooth is one-directionally rotated thereon and is engaged with retaining teeth, so that slotted nut can not reversely turn
It is dynamic, realize the retaining of slotted nut；When needing to screw down slotted nut, locking card II need to only be taken out out of back skating slot,
The nut assembly that integral-rotation slotted nut, single direction rotation ring, locking card I and retaining ring form moves backward can be from fluting lead screw
On remove, it is easy to operate.
For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair
The utility model is described in detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of loose-proof screw.
Fig. 2 is that the embodiment 1 of loose-proof screw stops the structural schematic diagram of back skating slot.
Fig. 3 is that the embodiment 2 of loose-proof screw stops the structural schematic diagram of back skating slot.
Fig. 4 is the distribution schematic diagram of retaining sliding slot on the fluting lead screw of loose-proof screw.
Fig. 5 is the structural schematic diagram of slotted nut in loose-proof screw.
Fig. 6 is the top view of slotted nut in loose-proof screw.
Fig. 7 is the main view of slotted nut in loose-proof screw.
Fig. 8 is the structural schematic diagram of single direction rotation ring in loose-proof screw.
Fig. 9 is the top view of single direction rotation ring in loose-proof screw.
Figure 10 is the main view of single direction rotation ring in loose-proof screw.
Figure 11 is the structural schematic diagram of retaining teeth in loose-proof screw.
Figure 12 is the structural schematic diagram of loose-proof screw guide ring.
Appended drawing reference: 1- fluting lead screw, 2- lead screw nut, 3- retaining sliding slot, 4- slotted nut, 5- one-directionally rotate tooth, 6-
Single direction rotation ring, 7- retaining teeth, 8- retaining ring, 9- locking card I, 10- articulated shaft, 11- locking card II, 12- retaining ring card slot, 13-
Rotating cylinder, 14- internal screw thread, 15- lead screw through-hole, 16- pilot hole.
Specific embodiment
The technical solution of the utility model is described further in the following with reference to the drawings and specific embodiments.
Embodiment 1
Referring to Fig. 1, in the utility model embodiment 1, a kind of loose-proof screw, including fluting lead screw 1 and slotted nut 4,
One end of the fluting lead screw 1 is welded with lead screw nut 2, and the side of the other end for lead screw 1 of slotting offers retaining sliding slot 3, only
The quantity of back skating slot 3 is 2, and the length of retaining sliding slot 3 is determined according to the length of fluting lead screw 1 and the depth length of retaining sliding slot 3
Fixed, referring to fig. 2, in the present embodiment, the length of the retaining sliding slot 3 is the 1/3 of fluting 1 length of lead screw.
In order to facilitate the torquing operations of slotted nut 4, in the present embodiment, the slotted nut 4 is outer-hexagonal nut.
Fig. 5~Fig. 7,4 side of slotted nut connect rotating cylinder 13, slotted nut 4 and 13 integral molding of rotating cylinder,
4 side wall of slotted nut in 13 outside of rotating cylinder is equipped with several one-directional rotation teeth 5, and one-directional rotation tooth 5 is right angle on one side, preferably
, in the present embodiment, one-directional rotation tooth 5 same circumferential equidistantly distributed along the slotted nut 4 in 13 outside of rotating cylinder, unidirectionally
The same of turning gear 5 is equipped with 45 ° of oblique angles on one side, and another side is right angle.
Figure 10~Figure 12, is assembled with single direction rotation ring 6 on the outside of the rotating cylinder 13, on single direction rotation ring 6 and slotted nut 4
The opposite side of one-directional rotation tooth 5 offers pilot hole 16, in order to improve the retaining effect of single direction rotation ring 6 to greatest extent,
The quantity of pilot hole 16 is The more the better, and in the present embodiment, the quantity of pilot hole 16 is 6 and along the same of single direction rotation ring 6
Circumferential equidistantly distributed is equipped with retaining teeth 7 in the pilot hole 16, is equipped in the pilot hole 16 of 7 one end of retaining teeth
Spring, spring are connected with retaining teeth 7 and play the function of buffering and pop up to retaining teeth 7.
In order to avoid retaining teeth 7 are slipped out of pilot hole 16, the gear of retaining teeth 7 is equipped on the outside of the pilot hole 16
Piece.
The outer end side of the retaining teeth 7 is equipped with 45 ° of oblique angles, and the other side is equipped with right angle, 45 ° of oblique angles of retaining teeth 7
It is in contact with 45 ° of oblique angles of one-directional rotation tooth 5, when single direction rotation ring 6 and the relative rotation of slotted nut 4, retaining teeth 7 are played
The effect of retaining (unidirectional), slotted nut 4 can only rotate facing one direction relative to single direction rotation ring 6.
Retaining ring card slot 12, installation in retaining ring card slot 12 are offered on the rotating cylinder 13 of the other side of the single direction rotation ring 6
There is a retaining ring 8, the other side of the single direction rotation ring 6 is connected with locking card I 9, and one end of single direction rotation ring 6 and locking card I 9 is weldering
It connects, the other end of locking card I 9 is hinged by articulated shaft 10 and one end of locking card II 11, the width and retaining of locking card II 11
The width of sliding slot 3 is equal.
Lead screw through-hole 15 is equipped with inside the slotted nut 4 and rotating cylinder 13, fluting lead screw 1 is threaded through lead screw through-hole 15
Interior, slotted nut 4 and 13 inner wall of rotating cylinder are equipped with internal screw thread 14, and internal screw thread 14 is mutually engaged with external screw thread on fluting lead screw 1.
The working principle of the utility model is:
Before use, slotted nut 4, single direction rotation ring 6, locking card I 9 and retaining ring 8 are assembled in order, and by slotted nut
4 are screwed on fluting lead screw 1, and when needing cross-notching nut 4 to screw retaining, only need to rotate locking card II 11 is caught in fluting
In retaining sliding slot 3 on lead screw 1, when slotted nut 4 along fluting lead screw 1 screw depth when, slotted nut 4, single direction rotation ring 6,
The nut assembly that locking card I 9 and retaining ring 8 form integrally moves forward, and this used time, locking card II 11 along retaining sliding slot 3 forward
Sliding；When slotted nut 4 reversely rotates, tooth 5 is one-directionally rotated thereon and is engaged with retaining teeth 7, so that slotted nut 4 can not be anti-
To rotation, therefore, the retaining of slotted nut 4 is realized.
When needing to screw down slotted nut 4, locking card II 11 need to only be taken out out of back skating slot 3, integral-rotation is opened
The nut assembly that slot nut 4, single direction rotation ring 6, locking card I 9 and retaining ring 8 form, which moves backward, to be taken from fluting lead screw 1
Under, it is easy to operate.
Embodiment 2
Referring to Fig. 1, Fig. 3~Figure 12, in the utility model embodiment 2, a kind of loose-proof screw, including fluting 1 He of lead screw
One end of slotted nut 4, the fluting lead screw 1 is welded with lead screw nut 2, and the side of the other end for lead screw 1 of slotting offers only
Back skating slot 3, the quantity of retaining sliding slot 3 are 2, and the length of retaining sliding slot 3 is according to the length of fluting lead screw 1 and retaining sliding slot 3
Depth length determines that in the present embodiment, the length of the retaining sliding slot 3 is the 2/3 of fluting 1 length of lead screw.
In order to facilitate the torquing operations of slotted nut 4, in the present embodiment, the slotted nut 4 is outer-hexagonal nut.
4 side of slotted nut connects rotating cylinder 13, slotted nut 4 and 13 integral molding of rotating cylinder, rotating cylinder 13
4 side wall of slotted nut in outside is equipped with several one-directional rotation teeth 5, and one-directional rotation tooth 5 is on one side right angle, in the present embodiment
In, one-directional rotation tooth 5 same circumferential equidistantly distributed along the slotted nut 4 in 13 outside of rotating cylinder one-directionally rotates the same of tooth 5
Side is equipped with 45 ° of oblique angles, and another side is right angle.
It is assembled with single direction rotation ring 6 on the outside of the rotating cylinder 13, one-directionally rotates tooth 5 on single direction rotation ring 6 and slotted nut 4
Opposite side offers pilot hole 16, in order to improve the retaining effect of single direction rotation ring 6, the number of pilot hole 16 to greatest extent
Measure The more the better, in the present embodiment, the quantity of pilot hole 16 is 3 and equidistantly divides along the same circumferential direction of single direction rotation ring 6
Cloth is equipped with retaining teeth 7 in the pilot hole 16, is equipped with spring in the pilot hole 16 of 7 one end of retaining teeth, spring with only
Teeth 7 are moved back to be connected and play the function of buffering retaining teeth 7 and pop up.
In order to avoid retaining teeth 7 are slipped out of pilot hole 16, the gear of retaining teeth 7 is equipped on the outside of the pilot hole 16
Piece.
The outer end side of the retaining teeth 7 is equipped with 45 ° of oblique angles, and the other side is equipped with right angle, 45 ° of oblique angles of retaining teeth 7
It is in contact with 45 ° of oblique angles of one-directional rotation tooth 5, when single direction rotation ring 6 and the relative rotation of slotted nut 4, retaining teeth 7 are played
The effect of retaining (unidirectional), slotted nut 4 can only rotate facing one direction relative to single direction rotation ring 6.
Retaining ring card slot 12, installation in retaining ring card slot 12 are offered on the rotating cylinder 13 of the other side of the single direction rotation ring 6
There is a retaining ring 8, the other side of the single direction rotation ring 6 is connected with locking card I 9, and one end of single direction rotation ring 6 and locking card I 9 is card
It connects, the other end of locking card I 9 is hinged by articulated shaft 10 and one end of locking card II 11, the width and retaining of locking card II 11
The width of sliding slot 3 is equal.
Lead screw through-hole 15 is equipped with inside the slotted nut 4 and rotating cylinder 13, fluting lead screw 1 is threaded through lead screw through-hole 15
Interior, slotted nut 4 and 13 inner wall of rotating cylinder are equipped with internal screw thread 14, and internal screw thread 14 is mutually engaged with external screw thread on fluting lead screw 1.
The working principle of the utility model is:
Before use, slotted nut 4, single direction rotation ring 6, locking card I 9 and retaining ring 8 are assembled in order, and by slotted nut
4 are screwed on fluting lead screw 1, and when needing cross-notching nut 4 to screw retaining, only need to rotate locking card II 11 is caught in fluting
In retaining sliding slot 3 on lead screw 1, when slotted nut 4 along fluting lead screw 1 screw depth when, slotted nut 4, single direction rotation ring 6,
The nut assembly that locking card I 9 and retaining ring 8 form integrally moves forward, and this used time, locking card II 11 along retaining sliding slot 3 forward
Sliding；When slotted nut 4 reversely rotates, tooth 5 is one-directionally rotated thereon and is engaged with retaining teeth 7, so that slotted nut 4 can not be anti-
To rotation, therefore, the retaining of slotted nut 4 is realized.
When needing to screw down slotted nut 4, locking card II 11 need to only be taken out out of back skating slot 3, integral-rotation is opened
The nut assembly that slot nut 4, single direction rotation ring 6, locking card I 9 and retaining ring 8 form, which moves backward, to be taken from fluting lead screw 1
Under, it is easy to operate.
Embodiment 3
In the utility model embodiment 3, a kind of loose-proof screw, the outer end side of the retaining teeth 7 is circular arc, separately
Side is equipped with right angle, and the same of one-directional rotation tooth 5 is on one side circular arc, and another side is right angle, the circular arc and one-directional rotation of retaining teeth 7
The circular arc of tooth 5 is in contact, remaining structure division of embodiment 3 is same as Example 1, and 45 ° of oblique angles replace all with circle
Arc, the same effect for realizing single direction rotation.
Embodiment 4
In the utility model embodiment 4, a kind of loose-proof screw, the outer end side of the retaining teeth 7 is circular arc, separately
Side is equipped with right angle, and the same of one-directional rotation tooth 5 is on one side circular arc, and another side is right angle, the circular arc and one-directional rotation of retaining teeth 7
The circular arc of tooth 5 is in contact, remaining structure division of embodiment 4 is same as Example 2, and 45 ° of oblique angles replace all with circle
Arc, the same effect for realizing single direction rotation.
Technical principle of the utility model has been described above with reference to specific embodiments, is only the preferred implementation of the utility model
Mode.The protection scope of the utility model is not limited merely to above-described embodiment, technology belonging to the idea of the present invention
Scheme belongs to the protection scope of the utility model.Those skilled in the art, which does not need to pay for creative labor, to be associated
To other specific embodiments of the utility model, these modes are fallen within the protection scope of the utility model.
Claims (9)
1. a kind of one-directional rotation nut, including slotted nut (4), rotating cylinder (13), single direction rotation ring (6) and locking card, described
Slotted nut (4) and one-directional rotation tooth (5) lower end are bolted to connection lead screw nut (2), which is characterized in that the fluting
Nut (4) side connects rotating cylinder (13), and slotted nut (4) side wall on the outside of rotating cylinder (13) is equipped with several one-directional rotation teeth
(5), it is assembled with single direction rotation ring (6) on the outside of rotating cylinder (13), locking tooth is installed in the pilot hole (16) of single direction rotation ring (6)
Tooth (7), retaining teeth (7) are in contact with one-directional rotation tooth (5), and locking card is connected with single direction rotation ring (6).
2. a kind of one-directional rotation nut according to claim 1, which is characterized in that the slotted nut (4) is outer-hexagonal
Nut, slotted nut (4) and rotating cylinder (13) integral molding.
3. a kind of one-directional rotation nut according to claim 2, which is characterized in that the one-directional rotation tooth (5) is along rotation
Same circumferential equidistantly distributed, the same of one-directional rotation tooth (5) are equipped with oblique angle on one side on slotted nut (4) on the outside of cylinder (13), separately
It is on one side right angle, the oblique angle for one-directionally rotating the same one side of tooth (5) is 45 °, and the outer end side of retaining teeth (7) is equipped with oblique angle, separately
Side is equipped with right angle, and the oblique angle of the outer end side of retaining teeth (7) is 45 °, the oblique angle and one-directional rotation tooth of retaining teeth (7)
(5) oblique angle is in contact.
4. a kind of one-directional rotation nut according to claim 2, which is characterized in that described to one-directionally rotate the same of tooth (5)
Side is equipped with circular arc, and another side is right angle, and the outer end side of retaining teeth (7) is equipped with circular arc, and the other side is equipped with right angle, retaining teeth
(7) circular arc is in contact with the circular arc of one-directional rotation tooth (5).
5. a kind of one-directional rotation nut according to claim 1, which is characterized in that the single direction rotation ring (6) and fluting
Tooth (5) opposite side is one-directionally rotated on nut (4) to offer pilot hole (16), and retaining teeth are installed in pilot hole (16)
(7), spring is installed, the quantity of pilot hole (16) is 3 and along single direction rotation in the pilot hole (16) of retaining teeth (7) one end
The same circumferential equidistantly distributed of ring (6), pilot hole (16) outside is equipped with the baffle of retaining teeth (7).
6. a kind of one-directional rotation nut according to claim 5, which is characterized in that the single direction rotation ring (6) it is another
It is offered retaining ring card slot (12) on the rotating cylinder (13) of side, retaining ring (8) is installed in retaining ring card slot (12).
7. a kind of one-directional rotation nut according to claim 6, which is characterized in that the locking card includes locking card I
(9), articulated shaft (10) and locking card II (11), the other side of single direction rotation ring (6) are connected with locking card I (9), single direction rotation ring
It (6) is welding or clamping with one end of locking card I (9), the other end of locking card I (9) passes through articulated shaft (10) and locking card II
(11) one end is hinged.
8. a kind of loose-proof screw, including one-directional rotation nut as claimed in claim 1 further include fluting lead screw
(1), one end of fluting lead screw (1) is welded with lead screw nut (2), and the side of the other end of fluting lead screw (1) offers only
Back skating slot (3), which is characterized in that be equipped with lead screw through-hole (15) inside the slotted nut (4) and rotating cylinder (13), lead screw of slotting
(1) it is threaded through in lead screw through-hole (15), slotted nut (4) and rotating cylinder (13) inner wall are equipped with internal screw thread (14), internal screw thread
(14) it is mutually engaged with external screw thread on fluting lead screw (1).
9. a kind of loose-proof screw according to claim 8, which is characterized in that the quantity of the retaining sliding slot (3) is at least
It is 1, the width of locking card II (11) is equal with the width of retaining sliding slot (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821504460.8U CN208870907U (en) | 2018-09-14 | 2018-09-14 | A kind of one-directional rotation nut and its loose-proof screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821504460.8U CN208870907U (en) | 2018-09-14 | 2018-09-14 | A kind of one-directional rotation nut and its loose-proof screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870907U true CN208870907U (en) | 2019-05-17 |
Family
ID=66467694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821504460.8U Expired - Fee Related CN208870907U (en) | 2018-09-14 | 2018-09-14 | A kind of one-directional rotation nut and its loose-proof screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870907U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410412A (en) * | 2019-07-05 | 2019-11-05 | 国家电网有限公司 | A kind of electric power tower anti-drop bolt nut and its working method |
| CN111022477A (en) * | 2019-12-31 | 2020-04-17 | 广西玉柴机器股份有限公司 | Bolt anti-loosening clamp spring and manufacturing method thereof |
| CN111156241A (en) * | 2020-02-12 | 2020-05-15 | 天津大学 | Mechanical anti-loose bolt |
| CN112431842A (en) * | 2020-12-07 | 2021-03-02 | 杨磊 | Novel anti-loosening screw |
| CN115199032A (en) * | 2022-08-23 | 2022-10-18 | 中建三局集团有限公司 | Recyclable back-jacking device for large-span floor slab pouring and construction method thereof |
-
2018
- 2018-09-14 CN CN201821504460.8U patent/CN208870907U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410412A (en) * | 2019-07-05 | 2019-11-05 | 国家电网有限公司 | A kind of electric power tower anti-drop bolt nut and its working method |
| CN111022477A (en) * | 2019-12-31 | 2020-04-17 | 广西玉柴机器股份有限公司 | Bolt anti-loosening clamp spring and manufacturing method thereof |
| CN111156241A (en) * | 2020-02-12 | 2020-05-15 | 天津大学 | Mechanical anti-loose bolt |
| CN112431842A (en) * | 2020-12-07 | 2021-03-02 | 杨磊 | Novel anti-loosening screw |
| CN115199032A (en) * | 2022-08-23 | 2022-10-18 | 中建三局集团有限公司 | Recyclable back-jacking device for large-span floor slab pouring and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20200914 |