CN108679069B - Anti-falling bolt, anti-falling bolt assembly and using method of anti-falling bolt and anti-falling bolt assembly - Google Patents
Anti-falling bolt, anti-falling bolt assembly and using method of anti-falling bolt and anti-falling bolt assembly Download PDFInfo
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- CN108679069B CN108679069B CN201810431818.7A CN201810431818A CN108679069B CN 108679069 B CN108679069 B CN 108679069B CN 201810431818 A CN201810431818 A CN 201810431818A CN 108679069 B CN108679069 B CN 108679069B
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- groove
- screw
- limiting
- screw rod
- bolt
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
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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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to an anti-drop bolt, an anti-drop bolt assembly and a using method thereof, wherein the anti-drop bolt assembly comprises the following steps: the bolt body comprises a screw rod with threads and a screw rod head fixed at the first end of the screw rod, wherein a second end of the screw rod, which is opposite to the first end, is provided with an accommodating groove along the length direction of the screw rod and a limiting groove which is arranged along the circumferential direction of the screw rod and is communicated with the accommodating groove; and the rotatable limit structure who locates the screw rod of inlaying, limit structure is rotatable to the surface that the spacing groove was located to the card, and protruding the screw rod of stretching out, or limit structure is rotatable to packing up in the storage tank to prevent that the nut from holding from droing from the second, guarantee the security of mechanical construction, prolong machinery life to a certain extent, improve the security and the life of machinery. Simple structure, convenient operation and easy realization.
Description
Technical Field
The invention relates to the field of building construction, in particular to an anti-falling bolt, an anti-falling bolt assembly and a using method of the anti-falling bolt and the anti-falling bolt assembly.
Background
In the building construction process, the use of various machines is indispensable. Bolt assemblies are commonly used to secure two or more parts that need to be secured together. The bolt assembly includes a bolt and a nut. The bolt comprises a bolt head and a bolt rod connected with the bolt head, and threads are arranged on the bolt rod. In use, the bolt rod is inserted through the through holes of the two or more parts, and the nut is screwed on the screw rod in a matching way, so that the two or more parts are fastened together.
However, when the machine is used for a long time due to vibration, the nut can slowly loosen from the bolt rod, so that each part is loosened and even falls off, and the safety and the service life of the machine are greatly influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an anti-falling bolt, an anti-falling bolt assembly and a using method thereof, and solves the problem that a bolt and a nut in the prior art are easy to loosen and separate after being used for a long time.
The technical scheme for realizing the purpose is as follows:
the invention provides an anti-drop bolt, comprising:
the bolt body comprises a threaded screw and a screw head fixed at a first end of the threaded screw, wherein a second end of the threaded screw, which is opposite to the first end, is provided with an accommodating groove along the length direction of the threaded screw and a limiting groove which is arranged along the circumferential direction of the threaded screw and is communicated with the accommodating groove; and
the limiting structure is rotatably embedded in the joint of the accommodating groove and the limiting groove, can be accommodated in the accommodating groove, can be rotated out of the accommodating groove and then clamped in the limiting groove, and partially protrudes out of the screw rod when the limiting structure is clamped in the limiting groove.
The anti-drop bolt of the invention is further improved in that the limit structure comprises:
the ball body is rotatably embedded at the joint of the accommodating groove and the limiting groove; and
the clamping pin is fixed on the ball body, the clamping pin can be contained in the containing groove along with the rotation of the ball body, and can also be rotated out of the containing groove along with the rotation of the ball body so as to be clamped into the limiting groove, and when the clamping pin is clamped into the limiting groove, part of the clamping pin protrudes out of the screw rod.
The anti-drop bolt is further improved in that a groove for arranging the ball body is formed at the intersection of the accommodating groove and the limiting groove in the screw rod.
The anti-falling bolt is further improved in that the width of the accommodating groove and the limiting groove is smaller than the diameter of the ball body.
The anti-drop bolt is further improved in that when the clamping pin is accommodated in the accommodating groove, the end part of the clamping pin protrudes out of the second end face of the screw rod.
The anti-drop bolt is further improved in that the limiting groove is a sector groove arranged in the circumferential direction of the screw.
The invention also discloses an anti-drop bolt assembly, which comprises:
the anti-falling bolt comprises a bolt body and a bolt head, wherein the bolt body comprises a threaded screw and a screw head fixed at a first end of the screw, a second end of the screw, which is opposite to the first end, is provided with an accommodating groove along the length direction of the screw and a limiting groove which is arranged along the circumferential direction of the screw and is communicated with the accommodating groove; the limiting structure is rotatably embedded at the joint of the accommodating groove and the limiting groove, can be accommodated in the accommodating groove, and can also be rotated out of the accommodating groove to be clamped in the limiting groove, and when the limiting structure is clamped in the limiting groove, part of the limiting structure protrudes out of the screw rod; and
the nut is screwed on the screw rod, and the limiting structure is clamped in the limiting groove and protrudes out of the surface of the screw rod by rotating, so that the nut is prevented from falling off.
The invention also discloses a use method of the anti-drop bolt, which comprises the following steps:
rotating the limiting structure to be received in the accommodating groove of the screw rod;
the screw rod is arranged in the part to be fastened in a penetrating way;
threadably securing a nut to the screw from the second end of the screw; and
and rotating the limiting structure to be clamped in the limiting groove and protrude out of the surface of the screw rod, so that the nut is prevented from falling off from the second end.
The anti-drop bolt, the anti-drop bolt assembly and the use method thereof have the beneficial effects that:
according to the bolt, the limiting structure is arranged on the bolt body, the limiting structure is rotated to be clamped in the limiting groove and protrude out of the screw rod, and the second end of the screw rod is limited, so that the nut cannot be separated from the second end, namely the screw rod and the nut are prevented from being separated, the safety of mechanical construction is finally guaranteed, the service life of the machine is prolonged to a certain extent, the problem that the bolt and the nut are easy to loosen and separate after being used for a long time in the prior art is solved, and the safety and the service life of the machine are improved. Simple structure, convenient operation and easy realization.
Drawings
Fig. 1 is a schematic view illustrating an opened state of a limit structure of an anti-drop bolt assembly according to the present invention.
Fig. 2 is a schematic view of a retracted state of the anti-drop bolt limiting structure of the present invention.
Fig. 3 is an enlarged schematic view of a of fig. 1.
Fig. 4 is an enlarged schematic view of B of fig. 2.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, a schematic view of the open state of the limiting structure of the anti-drop bolt assembly of the present invention is shown. Fig. 2 is a schematic view of a retracted state of the anti-drop bolt limiting structure of the present invention. As shown in fig. 1 and 2, the anti-drop bolt of the present invention includes: the bolt body comprises a screw 10 with threads and a screw head 20 fixed at a first end of the screw 10, wherein a second end, opposite to the first end, of the screw 10 is provided with an accommodating groove along the length direction of the screw 10 and a limiting groove which is arranged along the circumferential direction of the screw and is communicated with the accommodating groove; and the limiting structure 30 is rotatably embedded at the joint of the accommodating groove and the limiting groove, the limiting structure 30 can be accommodated in the accommodating groove and can also be rotated out of the accommodating groove and then clamped in the limiting groove, and when the limiting structure 30 is clamped in the limiting groove, the limiting structure partially protrudes out of the screw 10. According to the bolt, the limiting structure is arranged on the bolt body, the limiting structure is rotated to be clamped in the limiting groove and protrude out of the screw rod, and the second end of the screw rod is limited, so that the nut cannot be separated from the second end, namely the screw rod and the nut are prevented from being separated, the safety of mechanical construction is finally guaranteed, the service life of the machine is prolonged to a certain extent, the problem that the bolt and the nut are easy to loosen and separate after being used for a long time in the prior art is solved, and the safety and the service life of the machine are improved. Simple structure, convenient operation and easy realization.
As a preferred embodiment of the anti-falling bolt of the present invention, refer to fig. 3, which is an enlarged schematic view of a in fig. 1. Fig. 4 is an enlarged schematic view of B of fig. 2. As shown in fig. 1 to 4, the limiting structure 30 includes: the ball body 31 is rotatably embedded at the joint of the accommodating groove and the limiting groove; and a bayonet 32 fixed on the sphere 31, the bayonet can be accommodated in the accommodating groove along with the rotation of the sphere 31, and can also be rotated out of the accommodating groove along with the rotation of the sphere 31 to be clamped in the limiting groove, and when the bayonet is clamped in the limiting groove, part of the bayonet protrudes out of the screw 10.
As a preferred embodiment of the anti-falling bolt of the present invention, a groove for disposing the ball is disposed at an intersection of the receiving groove and the limiting groove in the screw. In particular, the ball 31 is embedded in the second end so as to be able to rotate freely, similar to a hinged connection. The click pin 32 fixed to the ball 31 rotates with the rotation of the ball 31. The width of the accommodating groove and the limiting groove is smaller than the diameter of the ball 31, so that the ball cannot be separated from the screw 10 from the accommodating groove and the limiting groove. Due to the existence of the accommodating groove and the limiting groove, the bayonet 32 can only rotate within the range of the accommodating groove and the limiting groove.
When the detent 32 is rotated to be disposed in the receiving groove, i.e., the direction of the detent 32 is consistent with the length direction of the screw 10, the nut 40 can be screwed onto the screw 10 from the second end, or the nut 40 can be separated from the screw 10 from the second end of the screw 10.
When the detent 32 is rotated to be caught in the stopper groove and protruded out of the surface of the screw 10 so that the nut 40 is separated from the screw 10 at the second end of the screw 10, the detent 32 catches the nut 40 so that the nut 40 cannot be separated from the screw 10 at the second end of the screw 10. The detent 32 acts as a stop.
As a preferred embodiment of the anti-falling bolt of the present invention, when the bayonet 32 is rotatably received in the receiving groove, the end of the bayonet 32 protrudes out of the second end face of the screw 10, so that the bayonet 32 can be conveniently adjusted.
As a preferred embodiment of the anti-drop bolt of the present invention, the limiting groove is a sector groove partially opened in the circumferential direction of the screw 10. The limiting groove is small in area, damage to the screw 10 is small, and overall strength is guaranteed.
The present invention also provides an anti-drop bolt assembly, including: the anti-falling bolt comprises a bolt body, a bolt head and a bolt body, wherein the bolt body comprises a screw 10 provided with threads and a screw head 20 fixed at a first end of the screw 10, a second end, opposite to the first end, of the screw 10 is provided with an accommodating groove along the length direction of the screw 10 and a limiting groove which is arranged along the circumferential direction of the screw and is communicated with the accommodating groove; the limiting structure 30 is rotatably embedded at the joint of the accommodating groove and the limiting groove, the limiting structure 30 can be accommodated in the accommodating groove and can also be rotated out of the accommodating groove and then clamped in the limiting groove, and when the limiting structure 30 is clamped in the limiting groove, the limiting structure partially protrudes out of the screw 10; and
the nut 40 screwed on the screw 10 is prevented from falling off by rotating the limiting structure 30 to the surface which is clamped in the limiting groove and protrudes out of the screw 10.
The invention also provides a use method of the anti-falling bolt assembly, which comprises the following steps:
rotating the limiting structure 30 to be received in the receiving groove of the screw 10;
the screw rod 10 is arranged on the part to be fastened in a penetrating way;
screwing and fastening the nut 40 to the screw 10 from the second end of the screw 10; and
the limiting structure 30 is rotated to be clamped in the limiting groove and protrude out of the surface of the screw 10, so that the nut 40 is prevented from falling off from the second end.
The anti-falling bolt, the anti-falling bolt assembly and the use method thereof have the beneficial effects that:
according to the bolt, the limiting structure is arranged on the bolt body, the limiting structure is rotated to be clamped in the limiting groove and protrude out of the screw rod, and the second end of the screw rod is limited, so that the nut cannot be separated from the second end, namely the screw rod and the nut are prevented from being separated, the safety of mechanical construction is finally guaranteed, the service life of the machine is prolonged to a certain extent, the problem that the bolt and the nut are easy to loosen and separate after being used for a long time in the prior art is solved, and the safety and the service life of the machine are improved. Simple structure, convenient operation and easy realization.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (6)
1. A drop-preventing bolt, comprising:
the bolt body comprises a threaded screw and a screw head fixed at a first end of the threaded screw, wherein a second end of the threaded screw, which is opposite to the first end, is provided with an accommodating groove along the length direction of the threaded screw and a limiting groove which is arranged along the circumferential direction of the threaded screw and is communicated with the accommodating groove; and
the limiting structure is rotatably embedded at the joint of the accommodating groove and the limiting groove, can be accommodated in the accommodating groove, and can also be rotated out of the accommodating groove to be clamped in the limiting groove, and when the limiting structure is clamped in the limiting groove, part of the limiting structure protrudes out of the screw rod;
the limit structure comprises:
the ball body is rotatably embedded at the joint of the accommodating groove and the limiting groove; and
the clamping pin is fixed on the ball body, can be accommodated in the accommodating groove along with the rotation of the ball body, can rotate out of the accommodating groove along with the rotation of the ball body and then is clamped in the limiting groove, and when the clamping pin is clamped in the limiting groove, part of the clamping pin protrudes out of the screw rod;
the limiting groove is a fan-shaped groove arranged in the circumferential direction of the screw rod.
2. An anti-drop bolt as defined in claim 1, wherein a groove for disposing said ball is provided at the intersection of said receiving groove and said limiting groove in said screw.
3. A drop preventing bolt according to claim 1, wherein the width of the receiving groove and the stopper groove is smaller than the diameter of the ball.
4. The anti-drop bolt as claimed in claim 1, wherein when said locking pin is received in said receiving groove, an end portion of said locking pin protrudes out of a second end face of said screw.
5. A drop-off preventing bolt assembly, comprising:
the anti-falling bolt comprises a bolt body and a bolt head, wherein the bolt body comprises a threaded screw and a screw head fixed at a first end of the screw, a second end of the screw, which is opposite to the first end, is provided with an accommodating groove along the length direction of the screw and a limiting groove which is arranged along the circumferential direction of the screw and is communicated with the accommodating groove; the limiting structure is rotatably embedded at the joint of the accommodating groove and the limiting groove, can be accommodated in the accommodating groove, and can also be rotated out of the accommodating groove to be clamped in the limiting groove, and when the limiting structure is clamped in the limiting groove, part of the limiting structure protrudes out of the screw rod; and
the nut is screwed on the screw rod, and the nut is prevented from falling off by rotating the limiting structure to be clamped in the limiting groove and protrude out of the screw rod;
the limit structure comprises:
the ball body is rotatably embedded at the joint of the accommodating groove and the limiting groove; and
the clamping pin is fixed on the ball body, can be accommodated in the accommodating groove along with the rotation of the ball body, can rotate out of the accommodating groove along with the rotation of the ball body and then is clamped in the limiting groove, and when the clamping pin is clamped in the limiting groove, part of the clamping pin protrudes out of the screw rod;
the limiting groove is a fan-shaped groove arranged in the circumferential direction of the screw rod.
6. The method for using an anti-drop bolt assembly according to claim 5, comprising the steps of:
rotating the limiting structure to be received in the accommodating groove of the screw rod;
the screw rod is arranged in the part to be fastened in a penetrating way;
threading a nut from the second end of the screw and engaging the nut with the screw to clamp the component; and
and rotating the limiting structure to be clamped in the limiting groove and protrude out of the surface of the screw rod, so that the nut is prevented from falling off from the second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810431818.7A CN108679069B (en) | 2018-05-08 | 2018-05-08 | Anti-falling bolt, anti-falling bolt assembly and using method of anti-falling bolt and anti-falling bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810431818.7A CN108679069B (en) | 2018-05-08 | 2018-05-08 | Anti-falling bolt, anti-falling bolt assembly and using method of anti-falling bolt and anti-falling bolt assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108679069A CN108679069A (en) | 2018-10-19 |
| CN108679069B true CN108679069B (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810431818.7A Active CN108679069B (en) | 2018-05-08 | 2018-05-08 | Anti-falling bolt, anti-falling bolt assembly and using method of anti-falling bolt and anti-falling bolt assembly |
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| CN (1) | CN108679069B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641320A (en) * | 2019-09-29 | 2020-01-03 | 攀钢集团西昌钢钒有限公司 | Jumper wire, track circuit and jumper wire installation method |
| CN112099581A (en) * | 2020-09-08 | 2020-12-18 | 福建中信网安信息科技有限公司 | All-in-one machine based on super-fusion storage system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091814A (en) * | 1992-10-28 | 1994-09-07 | 小野辰雄 | Connecting pin |
| CN105889277A (en) * | 2014-12-05 | 2016-08-24 | 安顺市晶英科技研发有限责任公司 | Novel automatic disengagement-preventing bolt |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033468B (en) * | 2014-06-19 | 2015-12-02 | 宁波浩渤工贸有限公司 | A kind of Anti-extrusion bolt |
| CN105889288A (en) * | 2014-12-19 | 2016-08-24 | 遵义勤乐五金建材加工厂 | Anti-falling bolt component |
| CN204985269U (en) * | 2015-04-02 | 2016-01-20 | 温州市鑫泰紧固件有限公司 | Anticreep bolt for high -speed railway |
| CN204828216U (en) * | 2015-08-12 | 2015-12-02 | 温州金宇紧固件有限公司 | Bolt assembly |
| CN205298212U (en) * | 2015-11-10 | 2016-06-08 | 山东科技大学 | Buckle formula anti -drop fastening bolt |
-
2018
- 2018-05-08 CN CN201810431818.7A patent/CN108679069B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091814A (en) * | 1992-10-28 | 1994-09-07 | 小野辰雄 | Connecting pin |
| CN105889277A (en) * | 2014-12-05 | 2016-08-24 | 安顺市晶英科技研发有限责任公司 | Novel automatic disengagement-preventing bolt |
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| Publication number | Publication date |
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| CN108679069A (en) | 2018-10-19 |
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