CN111692190B - Check bolt structure - Google Patents
Check bolt structure Download PDFInfo
- Publication number
- CN111692190B CN111692190B CN202010410840.0A CN202010410840A CN111692190B CN 111692190 B CN111692190 B CN 111692190B CN 202010410840 A CN202010410840 A CN 202010410840A CN 111692190 B CN111692190 B CN 111692190B
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- China
- Prior art keywords
- bolt
- rod part
- ring
- thin rod
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007423 decrease Effects 0.000 claims description 3
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Images
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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
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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
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
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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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses an anti-loosening bolt structure which comprises a bolt main body, wherein the bolt main body comprises a bolt thick rod part and a bolt thin rod part, the bolt thick rod part is positioned below the bolt thin rod part, the rod bodies surrounding the bolt thick rod part and the bolt thin rod part are provided with external threads, an anti-loosening sleeve is sleeved on the rod body of the bolt thin rod part, and a fastening nut is arranged on the bolt thin rod part above the anti-loosening sleeve; the anti-loosening sleeve comprises a bottom ring, a top ring and a connecting pipe used for connecting the bottom ring and the top ring, a plastic sleeve is sleeved outside the connecting pipe, the diameter of the bottom ring is equal to that of the thick rod part of the bolt, and a plastic part is further arranged between the lower part of the bottom ring and the thin rod part of the bolt above the thick rod part of the bolt. The anti-loosening bolt structure provided by the invention is convenient to install, high in anti-loosening precision, and capable of effectively preventing the bolt connecting structure from loosening and ensuring the reliability of the bolt connecting structure.
Description
Technical Field
The invention relates to a locking bolt structure, and belongs to the field of bolt locking.
Background
Bolt connection is one of the most common mechanical connection modes of mechanical structures, but for a bolt connection structure bearing dynamic load or impact load, the bolt connection structure is easily loosened under the influence of the dynamic load or the impact load in the service process, for example, a base fixing bolt of an engine is easily loosened under the influence of vibration load in the working process of the engine. Once the bolt connecting structure is loosened, the connected part is loosened or cracked, and the connected structure cannot work normally. In order to improve the reliability of the bolt connection structure, various anti-loosening measures are usually adopted to realize the locking of the bolt connection structure, but the traditional anti-loosening mode is difficult to play an effective anti-loosening role in the bolt structure.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the anti-loosening bolt structure which is convenient to install, high in anti-loosening precision, capable of effectively preventing the bolt connecting structure from loosening and capable of ensuring the reliability of the bolt connecting structure.
The technical scheme adopted by the invention is as follows:
a check bolt structure comprises a bolt main body, wherein the bolt main body comprises a bolt thick rod part and a bolt thin rod part, the bolt thick rod part is positioned below the bolt thin rod part, the rod bodies surrounding the bolt thick rod part and the bolt thin rod part are provided with external threads, an anti-loosening sleeve is sleeved on the rod body of the bolt thin rod part, and a fastening nut is arranged on the bolt thin rod part above the anti-loosening sleeve; the anti-loosening sleeve comprises a bottom ring, a top ring and a connecting pipe used for connecting the bottom ring and the top ring, the connecting pipe is in threaded connection with the bolt thin rod part, a plastic sleeve is sleeved outside the connecting pipe, the diameter of the bottom ring is equal to that of the bolt thick rod part, and a plastic part is further arranged between the bottom ring below and the bolt thin rod part above the bolt thick rod part.
Preferably, the diameter of the plastic sleeve body decreases progressively from top to bottom, the diameter of the top of the plastic sleeve is larger than that of the bottom ring, and the diameter of the bottom of the plastic sleeve is smaller than that of the bottom ring.
Preferably, a locking washer is sleeved outside the connecting pipe below the top ring, a beveled tooth surface is formed around the top of the locking washer, and a beveled tooth surface matched with the beveled tooth surface at the top of the locking washer is formed at the bottom of the top ring.
Further preferably, the bottom of the lock washer is formed with a thread turn from inside to outside.
Preferably, a groove is formed in the center of the top ring, a through hole in the center of the groove is inserted into the top of the thin rod part of the bolt, an internal thread is formed on the inner ring surface of the groove body of the groove, and a thread ring matched with the internal thread on the inner ring surface of the groove is arranged on the outer ring body of the fastening nut.
Further preferably, the external thread on the body of the thick shank of the bolt is opposite to the external thread on the body of the thin shank of the bolt.
Further preferably, the top ring has a regular tetragonal structure or a regular hexagonal structure.
Further preferably, the top of the bolt thin rod part is provided with a cross spiral groove.
The invention has the beneficial effects that:
through screwing the anti-loosening sleeve, make plastic part and plastic cover laminate with screw hole inside, and be formed with the oblique flank of tooth that agrees with the oblique flank of tooth in lock washer top and lock washer's bottom from inside to outside at the bottom of apical ring and be formed with the fillet of screw, at the in-process that the anti-loosening sleeve was screwed, the oblique flank of tooth agrees with the oblique flank of tooth and rotates and make the fillet of screw and the top laminating by the connecting piece, it is convenient to install, locking precision is high, effectually prevent bolted connection structure pine and take off, guarantee bolted connection structure's reliability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the main reference numerals in the figures have the following meanings:
1. bolt main part, 2, the thick pole portion of bolt, 3, the thin pole portion of bolt, 4, the locking cover, 5, fastening nut, 6, bottom ring, 7, apical ring, 8, connecting pipe, 9, the plastic cover, 10, the plastic part, 11, lock washer, 12, recess.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1: the embodiment is a check bolt structure, which comprises a bolt main body 1, wherein the bolt main body 1 comprises a bolt thick rod part 2 and a bolt thin rod part 3, the bolt thick rod part 2 is positioned below the bolt thin rod part 3, the rod bodies surrounding the bolt thick rod part 2 and the bolt thin rod part 3 are provided with external threads, the rod body of the bolt thin rod part 3 is sleeved with a check sleeve 4, and a fastening nut 5 is arranged on the bolt thin rod part 3 above the check sleeve 4; the anti-loosening sleeve 4 comprises a bottom ring 6, a top ring 7 and a connecting pipe 8 used for connecting the bottom ring 6 and the top ring 7, the connecting pipe 8 is in threaded connection with the bolt thin rod part 3, a plastic sleeve 9 is sleeved outside the connecting pipe 8, the diameter of the bottom ring 6 is equal to that of the bolt thick rod part 2, and a plastic part 10 is further arranged between the bottom ring 6 and the bolt thin rod part 3 above the bolt thick rod part 2.
In this embodiment, the diameter of the plastic sleeve 9 decreases progressively from top to bottom, and the diameter of the top of the plastic sleeve 9 is greater than the diameter of the bottom ring 6, and the diameter of the bottom of the plastic sleeve 9 is less than the diameter of the bottom ring 6.
Referring to fig. 1, a lock washer 11 is further sleeved outside the connecting pipe 8 below the top ring 7, a sloped tooth surface is formed around the top of the lock washer 11, and a sloped tooth surface matched with the sloped tooth surface at the top of the lock washer 11 is formed at the bottom of the top ring 7.
In this embodiment, the bottom of the lock washer 11 is formed with a thread turn from inside to outside.
Referring to fig. 1, a groove 12 is formed in the center of the top ring 7, the top of the bolt thin rod part 3 penetrates through a through hole in the center of the groove 12, an internal thread is formed on the inner annular surface of the groove body of the groove 12, and a thread ring matched with the internal thread on the inner annular surface of the groove 12 is arranged on the outer annular body of the fastening nut 5.
In this embodiment, the external thread on the body of the bolt thick rod part 2 is opposite to the external thread on the body of the bolt thin rod part 3.
In this embodiment, the top ring 7 has a regular quadrilateral structure, and in practical application, the top ring 7 may also have a regular hexagonal structure.
In this embodiment, the top of the bolt slender rod part 3 is provided with a cross spiral groove.
In the practical application of the invention, the anti-loose washer 11 is placed at the threaded hole, then the bolt main body 1 and the anti-loose sleeve 4 pass through the anti-loose washer 11, the thick rod part 3 of the bolt is screwed into the space between two connected piece bodies through the cross spiral groove at the top of the thin rod part 3 of the bolt by using the screw rod, then the top ring 7 of the anti-loose sleeve 4 is screwed, the inclined tooth surface at the bottom of the top ring 7 is matched with the inclined tooth surface at the top of the anti-loose washer 11 and synchronously rotates and presses downwards, the plastic piece 10 deforms and expands outwards under the extrusion of the anti-loose sleeve 4 and is tightly matched with the inside of the threaded hole of the connected piece, the diameter of the plastic sleeve 9 from top to bottom is gradually reduced, when the anti-loose sleeve 4 rotates downwards, the sleeve body at the upper part of the plastic sleeve 9 is tightly matched with the internal threaded hole of the connected piece, after the anti-loose sleeve 4 is screwed, the threaded ring formed, then the fastening screw cap 5 is screwed; if the connected piece below is a through hole, the bottom of the bolt thick rod part 3 is screwed with a locknut.
The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.
Claims (8)
1. The utility model provides a check bolt structure which characterized in that: the bolt comprises a bolt main body (1), wherein the bolt main body (1) comprises a bolt thick rod part (2) and a bolt thin rod part (3), the bolt thick rod part (2) is positioned below the bolt thin rod part (3), the rod bodies surrounding the bolt thick rod part (2) and the bolt thin rod part (3) are provided with external threads, an anti-loosening sleeve (4) is sleeved on the rod body of the bolt thin rod part (3), and a fastening nut (5) is arranged on the bolt thin rod part (3) above the anti-loosening sleeve (4); prevent loose cover (4) including end ring (6), apical ring (7) and connecting pipe (8) that are used for connecting end ring (6) and apical ring (7), connecting pipe (8) and bolt thin rod portion (3) threaded connection the outside cover of connecting pipe (8) is equipped with plastic cover (9), the diameter of end ring (6) equals the diameter of bolt thick rod portion (2), still is provided with plastic part (10) between the bolt thin rod portion (3) of end ring (6) below and bolt thick rod portion (2) top.
2. The anti-loose bolt structure as claimed in claim 1, wherein the diameter of the plastic sleeve (9) decreases from top to bottom, the diameter of the top of the plastic sleeve (9) is larger than the diameter of the bottom ring (6), and the diameter of the bottom of the plastic sleeve (9) is smaller than the diameter of the bottom ring (6).
3. The lockbolt structure as claimed in claim 1, characterized in that a lockwasher (11) is further sleeved on the outside of the connecting pipe (8) below the top ring (7), a beveled tooth surface is formed around the top of the lockwasher (11), and a beveled tooth surface which is matched with the beveled tooth surface on the top of the lockwasher (11) is formed on the bottom of the top ring (7).
4. A lock bolt structure according to claim 3, characterized in that the bottom of the lock washer (11) is formed with a thread turn from inside to outside.
5. The anti-loose bolt structure according to claim 1, characterized in that a groove (12) is formed in the center of the top ring (7), the top of the bolt thin rod part (3) penetrates through a central through hole of the groove (12), an internal thread is formed on the inner ring surface of the groove body of the groove (12), and a thread ring matched with the internal thread on the inner ring surface of the groove (12) is arranged on the outer ring body of the fastening nut (5).
6. A lock bolt structure according to claim 1, characterized in that the external thread on the shank of the bolt thick shank (2) is opposite to the external thread on the shank of the bolt thin shank (3).
7. A lock bolt structure according to claim 1, characterized in that the top ring (7) is of a regular tetragonal or hexagonal configuration.
8. A lock bolt structure according to claim 1, characterized in that the top of the bolt shank (3) is provided with a cross-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010410840.0A CN111692190B (en) | 2020-05-15 | 2020-05-15 | Check bolt structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010410840.0A CN111692190B (en) | 2020-05-15 | 2020-05-15 | Check bolt structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111692190A CN111692190A (en) | 2020-09-22 |
| CN111692190B true CN111692190B (en) | 2021-07-16 |
Family
ID=72477757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010410840.0A Active CN111692190B (en) | 2020-05-15 | 2020-05-15 | Check bolt structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111692190B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163633B (en) * | 2022-07-19 | 2023-09-19 | 靖江市飞天紧固件制造有限公司 | Locking bolt structure that moves |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0170886A1 (en) * | 1984-07-06 | 1986-02-12 | Böllhoff & Co, GmbH & Co KG | Compound element consisting of a plastic supporting element and a screw bolt |
| JP2003042124A (en) * | 2001-07-24 | 2003-02-13 | Wakai & Co Ltd | Manufacturing method of anchor bolt for board |
| US6758646B1 (en) * | 2000-05-19 | 2004-07-06 | Eisuke Ishida | Structure for preventing loosening of threaded fasteners |
| CN102937148A (en) * | 2012-11-16 | 2013-02-20 | 张新辉 | Tensioning connection sleeve for rod shearing machine |
| CN104179779A (en) * | 2013-05-21 | 2014-12-03 | 完美动力科技有限公司 | Fastening combination part |
| CN206439276U (en) * | 2017-01-17 | 2017-08-25 | 江苏滨盛石化机械有限公司 | A kind of anti-loosening connector |
| CN207728704U (en) * | 2018-01-02 | 2018-08-14 | 福建泉州市金正机械有限公司 | A kind of novel Rudge nut |
| CN108999871A (en) * | 2018-08-28 | 2018-12-14 | 宁波市镇海甬鼎紧固件制造有限公司 | It is a kind of to expand locking anti-theft bolt |
-
2020
- 2020-05-15 CN CN202010410840.0A patent/CN111692190B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0170886A1 (en) * | 1984-07-06 | 1986-02-12 | Böllhoff & Co, GmbH & Co KG | Compound element consisting of a plastic supporting element and a screw bolt |
| US6758646B1 (en) * | 2000-05-19 | 2004-07-06 | Eisuke Ishida | Structure for preventing loosening of threaded fasteners |
| JP2003042124A (en) * | 2001-07-24 | 2003-02-13 | Wakai & Co Ltd | Manufacturing method of anchor bolt for board |
| CN102937148A (en) * | 2012-11-16 | 2013-02-20 | 张新辉 | Tensioning connection sleeve for rod shearing machine |
| CN104179779A (en) * | 2013-05-21 | 2014-12-03 | 完美动力科技有限公司 | Fastening combination part |
| CN206439276U (en) * | 2017-01-17 | 2017-08-25 | 江苏滨盛石化机械有限公司 | A kind of anti-loosening connector |
| CN207728704U (en) * | 2018-01-02 | 2018-08-14 | 福建泉州市金正机械有限公司 | A kind of novel Rudge nut |
| CN108999871A (en) * | 2018-08-28 | 2018-12-14 | 宁波市镇海甬鼎紧固件制造有限公司 | It is a kind of to expand locking anti-theft bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111692190A (en) | 2020-09-22 |
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