CN113700723A - High-strength automobile engine fastener - Google Patents
High-strength automobile engine fastener Download PDFInfo
- Publication number
- CN113700723A CN113700723A CN202110889729.9A CN202110889729A CN113700723A CN 113700723 A CN113700723 A CN 113700723A CN 202110889729 A CN202110889729 A CN 202110889729A CN 113700723 A CN113700723 A CN 113700723A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- screw rod
- screw body
- mounting head
- rod body
- 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.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 26
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 16
- 239000010410 layer Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F16B33/00—Features common to bolt and nut
- F16B33/004—Sealing; Insulation
-
- 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/065—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting the screw, nail or the like
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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
- F16B33/00—Features common to bolt and nut
- F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a high-strength automobile engine fastener, which comprises a first screw body, wherein the top end of the first screw body is fixedly connected with a first mounting head, a communicated inner thread groove is formed between the interior of the first screw body and the first mounting head, the interior of the inner thread groove is in threaded connection with a second screw body, the top end of the second screw body is fixedly connected with a second mounting head, the bottom end of the second screw body is fixedly connected with a first raised head, the outer surface of the first screw body is provided with a plurality of limiting grooves communicated with the inner thread groove, the inner part of each limiting groove is slidably clamped by a column, the bottom end of the first screw body is provided with an inner expansion groove communicated with the inner thread groove, the inner part of each inner expansion groove is slidably connected with an extrusion column, the outer surface of the lower part of the first screw body is provided with a plurality of expansion openings, and the fastener is fixed by three layers, can avoid the fastener to become flexible, fixed effectual.
Description
Technical Field
The invention relates to the technical field of automobile engine fasteners, in particular to a high-strength automobile engine fastener.
Background
An automotive engine is a machine that can convert other forms of energy into mechanical energy, including, for example, internal combustion engines, external combustion engines, electric motors, and the like. In the field of automobile engines, the engine needs to generate a power supply effect for an automobile by adding engine oil for combined action, wherein the engine oil can play roles of lubrication, wear reduction, auxiliary cooling, temperature reduction, sealing, leakage prevention, rust prevention, corrosion prevention, shock absorption, buffering and the like for the engine.
The automobile engine can vibrate during operation, certain displacement deviation can be generated between the cylinder body and the cylinder cover, so that the bolt is loosened, the firmness degree of the joint of the cylinder body and the cylinder cover is reduced, the operation of the engine is influenced, the oil and water leakage condition is generated, and the engine is even damaged.
Disclosure of Invention
The invention aims to provide a high-strength automobile engine fastener to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-strength automobile engine fastener comprises a first screw body, wherein a first mounting head is fixedly connected to the top end of the first screw body, a communicated inner thread groove is formed between the interior of the first screw body and the first mounting head, a second screw body is in threaded connection with the interior of the inner thread groove, a second mounting head is fixedly connected to the top end of the second screw body, a first raised head is fixedly connected to the bottom end of the second screw body, a plurality of limiting grooves communicated with the inner thread groove are formed in the outer surface of the first screw body, a clamping column slides in the limiting grooves, a spring is sleeved on the outer surface of the clamping column, the inner side wall of the limiting groove at one end of the spring is fixedly connected, the other end of the spring is fixedly connected with one side of the outer surface of the clamping column, a second raised head is fixedly connected to one end of the clamping column, and an inserting column is fixedly connected to the other end of the clamping column, the bottom end of the first screw body is provided with an inner expansion groove communicated with the inner thread groove, the inner part of the inner expansion groove is connected with an extrusion column in a sliding mode, and the outer surface of the lower part of the first screw body is provided with a plurality of expansion openings.
Preferably, the inner aperture of the inner expansion groove is gradually reduced from top to bottom.
Preferably, the outer surface cover of first screw rod body is equipped with first sealing washer, the outer surface cover of second screw rod body is equipped with the second sealing washer.
Preferably, the bottom end face of the first mounting head is fixedly connected with a plurality of first anti-skid protrusions.
Preferably, a plurality of second anti-skid protrusions are fixedly connected to the bottom end face of the second mounting head.
Preferably, the first mounting head has a hexagonal cross section in plan view.
Preferably, the upper end surface of the second mounting head is provided with a hexagonal groove.
Preferably, the outer surface of the first screw body and the outer surface of the second screw body are both coated with teflon coatings.
Compared with the prior art, the invention has the beneficial effects that: the fastener is convenient to use, when in use, the first screw body is screwed into the inner aperture of the connecting piece to achieve a layer of fixing effect, then the second screw body is screwed into the inner thread groove, the first raised head is abutted against the second lug and moves towards the inner side of the limiting groove in the screwing process of the second screw body, the spring is compressed, the inserting column is contacted with the inner aperture of the connecting piece to limit the first screw body up and down, the fastening effect of the first screw body is improved, the second screw body is screwed downwards, the first raised head drives the extruding column to move downwards, the lower surface of the first screw body expands outwards when the extruding column moves downwards, so that the first screw body is tightly fixed in the inner aperture of the connecting piece to achieve the effect of third layer fixing, the fastener is fixed by three layers, so that the fastener can be prevented from loosening, and the fixing effect is good; the sealing effect of the fastener can be improved by matching the first sealing ring with the second sealing ring; the first anti-slip bulge can avoid the first sealing ring from slipping and loosening, so that the sealing effect of the first sealing ring can be enhanced; the second anti-skidding arch that sets up can avoid the second sealing washer to skid not hard up to can strengthen the sealed effect of second sealing washer.
Drawings
FIG. 1 is a schematic front cross-sectional view of a high strength automotive engine fastener body construction;
FIG. 2 is a schematic front view of a high strength automotive engine fastener body construction;
FIG. 3 is a top view of a first mounting head structure of a high strength automotive engine fastener.
In the figure: 1-a first screw body, 2-a second raised head, 3-an inserting column, 4-a second screw body, 5-a first sealing ring, 6-a first anti-skid projection, 7-a first mounting head, 8-a second mounting head, 9-a hexagonal groove, 10-a second anti-skid projection, 11-a second sealing ring, 12-a limiting groove, 13-a first raised head, 14-a spring, 15-a clamping column, 16-an internal thread groove, 17-an internal expansion groove, 18-an extruding column and 19-an expansion opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: a high-strength automobile engine fastener comprises a first screw body 1, wherein a first mounting head 7 is fixedly connected to the top end of the first screw body 1, a communicated internal thread groove 16 is formed between the interior of the first screw body 1 and the first mounting head 7, a second screw body 4 is in threaded connection with the interior of the internal thread groove 16, a second mounting head 8 is fixedly connected to the top end of the second screw body 4, a first raised head 13 is fixedly connected to the bottom end of the second screw body 4, a plurality of limiting grooves 12 communicated with the internal thread groove 16 are formed in the outer surface of the first screw body 1, a clamping column 15 slides in the limiting grooves 12, a spring 14 is sleeved on the outer surface of the clamping column 15, the inner side wall of the limiting groove 12 at one end of the spring 14 is fixedly connected, and the other end of the spring 14 is fixedly connected with one side of the outer surface of the clamping column 15, one end of the clamping column 15 is fixedly connected with a second raised head 2, the other end of the clamping column 15 is fixedly connected with an inserting column 3, an inner expansion groove 17 communicated with the inner thread groove 16 is formed in the bottom end of the first screw body 1, an extrusion column 18 is connected to the inner expansion groove 17 in a sliding mode, and a plurality of expansion openings 19 are formed in the outer surface of the lower portion of the first screw body 1.
When the screw is used, the first screw body 1 is firstly screwed into the inner aperture of the connecting piece to achieve a layer of fixing effect, then the second screw body 4 is screwed into the inner thread groove 16, in the screwing process of the second screw body 4, the first raised head 13 is abutted against the second lug 13 and enables the second lug 13 to move towards the inner side of the limiting groove 12, at the moment, the spring 14 is compressed, the inserting column 3 is contacted with the inner aperture of the connecting piece at the same time, so that the first screw body 1 can be limited by moving up and down, the fastening effect of the first screw body 1 is improved, the two-layer fixing effect is achieved, then the second screw body 4 is continuously screwed downwards, the first raised head 13 drives the extruding column 18 to move downwards, the lower surface of the first screw body 1 expands outwards when the extruding column 18 moves downwards, and the first screw body 1 is tightly fixed in the inner aperture of the connecting piece, therefore, the effect of fixing the third layer is achieved, the fastener is fixed through the three layers, looseness of the fastener can be avoided, and the fixing effect is good.
The inner diameter of the inner expansion groove 17 becomes smaller from top to bottom.
The outer surface cover of first screw rod body 1 is equipped with first sealing washer 5, the outer surface cover of second screw rod body 4 is equipped with second sealing washer 11.
The sealing effect of the fastener can be increased by matching the first sealing ring 5 with the second sealing ring 11.
The bottom end surface of the first mounting head 7 is fixedly connected with a plurality of first anti-skid bulges 6.
The first antiskid bulge 6 can avoid the first sealing ring 5 from slipping and loosening, thereby enhancing the sealing effect of the first sealing ring 5.
The bottom end surface of the second mounting head 8 is fixedly connected with a plurality of second anti-skid protrusions 10.
The second anti-slip bulge 10 can prevent the second sealing ring 11 from slipping and loosening, so that the sealing effect of the second sealing ring 11 can be enhanced.
The first mounting head 7 is of a hexagonal structure in plan view, and the first screw body 1 is conveniently mounted through a wrench.
The upper end surface of the second mounting head 8 is provided with a hexagonal groove 9, so that the second screw body 4 can be mounted conveniently by a screwdriver.
The outer surfaces of the first screw body 1 and the second screw body 4 are respectively coated with a Teflon coating layer for increasing the acid resistance, alkali resistance, corrosion resistance and wear resistance of the fastener.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a high strength automobile engine fastener, includes first screw body (1), its characterized in that: the screw rod comprises a first screw rod body (1), a first mounting head (7) is fixedly connected to the top end of the first screw rod body (1), a communicated inner thread groove (16) is formed between the interior of the first screw rod body (1) and the first mounting head (7), a second screw rod body (4) is in threaded connection with the interior of the inner thread groove (16), a second mounting head (8) is fixedly connected to the top end of the second screw rod body (4), a first raised head (13) is fixedly connected to the bottom end of the second screw rod body (4), a plurality of limiting grooves (12) communicated with the inner thread groove (16) are formed in the outer surface of the first screw rod body (1), a clamping column (15) slides in the limiting grooves (12), a spring (14) is sleeved on the outer surface of the clamping column (15), the inner side wall of the limiting groove (12) at one end of the spring (14) is fixedly connected, and the other end of the spring (14) is fixedly connected with one side of the outer surface of the clamping column (15), the novel screw rod is characterized in that a second raised head (2) is fixedly connected to one end of the clamping column (15), an inserting column (3) is fixedly connected to the other end of the clamping column (15), an inner expansion groove (17) communicated with an inner thread groove (16) is formed in the bottom end of the first screw rod body (1), an extrusion column (18) is connected to the inner portion of the inner expansion groove (17) in a sliding mode, and a plurality of expansion openings (19) are formed in the outer surface of the lower portion of the first screw rod body (1).
2. A high strength automotive engine fastener as defined in claim 1, wherein: the inner aperture of the inner expansion groove (17) is gradually reduced from top to bottom.
3. A high strength automotive engine fastener as defined in claim 2, wherein: the outer surface cover of first screw rod body (1) is equipped with first sealing washer (5), the outer surface cover of second screw rod body (4) is equipped with second sealing washer (11).
4. A high strength automotive engine fastener as defined in claim 3, wherein: the bottom end face of the first mounting head (7) is fixedly connected with a plurality of first anti-skid bulges (6).
5. The high strength automotive engine fastener of claim 4, wherein: the bottom end face of the second mounting head (8) is fixedly connected with a plurality of second anti-skid bulges (10).
6. A high strength automotive engine fastener as claimed in claim 5, wherein: the cross section of the first mounting head (7) in plan view is of a hexagonal structure.
7. The high strength automotive engine fastener of claim 6, wherein: and the upper end surface of the second mounting head (8) is provided with a hexagonal groove (9).
8. A high strength automotive engine fastener as claimed in claim 7, wherein: the outer surfaces of the first screw body (1) and the second screw body (4) are coated with Teflon coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110889729.9A CN113700723A (en) | 2021-08-04 | 2021-08-04 | High-strength automobile engine fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110889729.9A CN113700723A (en) | 2021-08-04 | 2021-08-04 | High-strength automobile engine fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113700723A true CN113700723A (en) | 2021-11-26 |
Family
ID=78651578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110889729.9A Pending CN113700723A (en) | 2021-08-04 | 2021-08-04 | High-strength automobile engine fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113700723A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587724A (en) * | 2004-08-02 | 2005-03-02 | 马庆友 | Hardware piece with expansion end and its matching spanners |
| US20120042502A1 (en) * | 2010-07-26 | 2012-02-23 | Kohler (China) Investment Co., Ltd. | Seat cover assembly |
| CN106481628A (en) * | 2016-12-21 | 2017-03-08 | 何志元 | A kind of setscrew |
| CN108916196A (en) * | 2018-08-03 | 2018-11-30 | 合肥岑遥新材料科技有限公司 | A kind of high intensity protection type fastening parts of automobiles |
| CN208546401U (en) * | 2018-06-05 | 2019-02-26 | 广州精益机械有限公司 | A kind of expansion tube combination subgroup |
| CN208702883U (en) * | 2018-07-24 | 2019-04-05 | 浙江天力机车部件有限公司 | A kind of automobile exhaust pipe fastening bolt |
-
2021
- 2021-08-04 CN CN202110889729.9A patent/CN113700723A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587724A (en) * | 2004-08-02 | 2005-03-02 | 马庆友 | Hardware piece with expansion end and its matching spanners |
| US20120042502A1 (en) * | 2010-07-26 | 2012-02-23 | Kohler (China) Investment Co., Ltd. | Seat cover assembly |
| CN106481628A (en) * | 2016-12-21 | 2017-03-08 | 何志元 | A kind of setscrew |
| CN208546401U (en) * | 2018-06-05 | 2019-02-26 | 广州精益机械有限公司 | A kind of expansion tube combination subgroup |
| CN208702883U (en) * | 2018-07-24 | 2019-04-05 | 浙江天力机车部件有限公司 | A kind of automobile exhaust pipe fastening bolt |
| CN108916196A (en) * | 2018-08-03 | 2018-11-30 | 合肥岑遥新材料科技有限公司 | A kind of high intensity protection type fastening parts of automobiles |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211126 |
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| RJ01 | Rejection of invention patent application after publication |