CN111350747B - Self-locking anti-drop nut - Google Patents
Self-locking anti-drop nut Download PDFInfo
- Publication number
- CN111350747B CN111350747B CN202010173065.1A CN202010173065A CN111350747B CN 111350747 B CN111350747 B CN 111350747B CN 202010173065 A CN202010173065 A CN 202010173065A CN 111350747 B CN111350747 B CN 111350747B
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- CN
- China
- Prior art keywords
- self
- locking
- nut body
- nut
- lock pad
- 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
- 230000001788 irregular Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 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
- 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
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
-
- 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
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
- F16B39/286—Locking by means of elastic deformation caused by saw cuts
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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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention discloses a self-locking anti-drop nut which comprises a nut body, wherein an anti-drop belt is integrally arranged at one end of the nut body, a self-locking groove is axially arranged on the anti-drop belt, and a self-locking conical surface is integrally arranged at the end, close to the nut body, of the anti-drop belt; the anti-falling belt is sleeved with a lock pad, the middle part of the lock pad is axially provided with a lock pad through hole, the end of the lock pad, which is back to the nut body, is axially provided with a positioning groove, and the positioning groove is communicated with the lock pad through hole; when the nut body is locked, the nut body is locked through the matching of the lock pad and the self-locking conical surface. Above-mentioned technical scheme, structural design is reasonable, simple structure, simple to operate, connect reliably, anticreep performance is good, the theftproof is effectual and the practicality is good.
Description
Technical Field
The invention relates to the technical field of nuts, in particular to a self-locking anti-falling nut.
Background
The existing nut has the following defects: 1. the nylon nut can resist the temperature of 120 ℃ and 250 ℃, and the locking function is lost when the temperature is exceeded; 2. the anti-theft nut adopts a steel ball anti-back structure, a plastic sleeve is required to be assembled in the nut when the anti-theft nut is installed, the purpose is to prevent the steel ball in the triangular groove in the threaded hole from falling out, but the installation is very inconvenient, and the nut can only advance and can not be back at the beginning. 3. Metal locking plate nuts and metal flattened (pressure point) nuts. The above 3 nuts have a common disadvantage that: the nut and the bolt are matched to generate a large amount of friction force at the beginning of installation, and the nut and the bolt are not easy to screw in; and along with the increase of distance the cooperation surplus of nut and bolt diminishes thereupon, drops a big iron fillings even, connects unreliable, and the practicality is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the self-locking anti-falling nut which is reasonable in structural design, simple in structure, convenient to install, reliable in connection, good in anti-falling performance, good in anti-theft effect and good in practicability.
In order to achieve the purpose, the invention provides the following technical scheme: a self-locking anti-drop nut comprises a nut body, wherein an anti-drop belt is integrally arranged at one end of the nut body, a self-locking groove is axially arranged on the anti-drop belt, and a self-locking conical surface is integrally arranged at the end, close to the nut body, of the anti-drop belt; the anti-falling belt is sleeved with a lock pad, the middle part of the lock pad is axially provided with a lock pad through hole, the end of the lock pad, which is back to the nut body, is axially provided with a positioning groove, and the positioning groove is communicated with the lock pad through hole; when the nut body is locked, the nut body is locked through the matching of the lock pad and the self-locking conical surface.
The invention is further configured to: the taper of the self-locking conical surface is 28 degrees.
The invention is further configured to: the anti-falling belt of the nut body is stressed and compressed and then twisted to form an irregular anti-falling ring, and the local position of the anti-falling belt is embedded into the positioning groove.
The invention is further configured to: the lock pad is made of 45 steel materials, and the quenching hardness of the lock pad is 35-38 HRC.
The invention is further configured to: the inner wall surface of the lock pad through hole of the lock pad is matched with the self-locking conical surface, so that the distance of the self-locking groove is reduced, the sizes of the large diameter, the middle diameter and the small diameter of the thread at the slotting part of the nut body are integrally reduced, and the anti-falling belt is gradually compressed at the bottom to form an irregular convex ring, namely the anti-falling ring.
The invention is further configured to: the nut body is locked through the locking pad and the self-locking conical surface, so that the threads, the anti-falling belt and the anti-falling ring of the upper part and the lower part of the self-locking groove lock the bolt.
The invention has the advantages that: compared with the prior art, the structure of the invention is more reasonable, after the nut body is screwed to the bottom, the self-locking distance between the lock pad and the nut body is gradually reduced to be tightly matched, and two changes are generated between the self-locking distance and the self-locking distance:
1. the self-locking conical surface is matched with the inner wall surface of the through hole of the lock pad, so that the distance between the upper half part and the lower single part of the anti-falling belt self-locking groove is reduced, and the anti-falling belt locking bolt of the nut body is locked;
2. the anti-falling belt on the nut is gradually compressed, and when the anti-falling belt is compressed and twisted, an irregular anti-falling ring is formed at the bottom; the anti-theft lock is convenient to install, can be screwed to a position by hands, and can play the aims of preventing falling and theft after being fastened.
The self-locking anti-falling nut has the advantages of reasonable structural design, simple structure, convenience in installation, reliability in connection, good anti-falling performance, good anti-theft effect and good practicability.
The invention is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a nut body according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a lock pad according to an embodiment of the invention.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, 2 and 3, the self-locking anti-drop nut disclosed by the invention comprises a nut body 1, wherein an anti-drop belt 11 is integrally arranged at one end of the nut body 1, a self-locking groove 111 is axially arranged on the anti-drop belt 11, and a self-locking conical surface 112 is integrally arranged at the end, close to the nut body, of the anti-drop belt 11; the anti-falling belt 11 is sleeved with a lock pad 2, the middle part of the lock pad 2 is axially provided with a lock pad through hole 21, the end, away from the nut body, of the lock pad 2 is axially provided with a positioning groove 22, and the positioning groove 22 is communicated with the lock pad through hole 21; when the nut body 1 is locked, the locking cushion 2 and the self-locking conical surface 112 are matched and locked.
Preferably, the taper of the self-locking taper surface 112 is 28 degrees.
The anti-drop belt 11 of the nut body 1 is stressed and compressed and then twisted to form an irregular anti-drop ring 113, and the local position of the anti-drop belt 11 is embedded into the positioning groove 22.
The lock pad 2 is made of 45 steel (45#) material, and the quenching hardness of the lock pad 2 is 35-38 HRC. Preferably, the lock pad 2 has a ring-shaped configuration.
The inner wall surface of the lock pad through hole 21 of the lock pad 2 is matched with the self-locking conical surface 112, so that the distance between the self-locking grooves 111 is reduced, the large diameter, the middle diameter and the small diameter of the thread at the slotting part of the nut body are integrally reduced, and the anti-falling belt 11 is gradually compressed at the bottom to form an irregular convex ring, namely the anti-falling ring 113.
The nut body 1 is provided with a bolt in the nut through hole, and the bolt is locked by the threads of the upper and lower parts of the self-locking groove 111, the anti-drop belt 11 and the anti-drop ring 113 after the nut body 1 is locked by the lock pad 2 and the self-locking conical surface 112.
During practical application, the nut body is twisted to the end after, makes the auto-lock interval between lock pad and the nut body diminish to closely cooperating hard gradually, has taken place two changes between this:
1. the self-locking conical surface is matched with the inner wall surface of the through hole of the lock pad, so that the distance between the upper half part and the lower half part of the self-locking groove is reduced, the sizes of the large diameter, the middle diameter and the small diameter of the thread are reduced, and the nut body locks the bolt;
2. the anti-falling belt on the nut is gradually compressed, when the anti-falling belt is compressed and twisted, an irregular anti-falling ring is formed at the bottom, and part of the anti-falling belt and the anti-falling ring lock the bolt; the anti-theft lock is convenient to install, can be screwed to a position by hands, and can play the aims of preventing falling and theft after being fastened.
The self-locking anti-falling nut has the advantages of reasonable structural design, simple structure, convenience in installation, reliability in connection, good anti-falling performance, good anti-theft effect and good practicability.
The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.
Claims (4)
1. The utility model provides a self-locking anticreep nut, includes nut body (1), its characterized in that: an anti-release belt (11) is integrally arranged at one end of the nut body (1), a self-locking groove (111) is axially arranged on the anti-release belt (11), and a self-locking conical surface (112) is integrally arranged at the end, close to the nut body, of the anti-release belt (11); the anti-falling belt (11) is sleeved with a lock pad (2), the middle part of the lock pad (2) is axially provided with a lock pad through hole (21), the end, deviating from the nut body, of the lock pad (2) is axially provided with a positioning groove (22), and the positioning groove (22) is communicated with the lock pad through hole (21); when the nut body (1) is locked, the nut body is locked through the matching of the lock pad (2) and the self-locking conical surface (112); the taper of the self-locking conical surface (112) is 28 degrees;
the anti-falling ring is characterized in that the anti-falling belt (11) of the nut body (1) is stressed and compressed and then is twisted to form an irregular anti-falling ring (113), and the local position of the anti-falling belt (11) is embedded into the positioning groove (22).
2. The self-locking anti-drop nut of claim 1, wherein: the lock pad (2) is made of 45 steel materials, and the quenching hardness of the lock pad (2) is 35-38 HRC.
3. The self-locking anti-drop nut of claim 2, wherein: the inner wall surface of a lock pad through hole (21) of the lock pad (2) is matched with the self-locking conical surface (112), so that the distance of the self-locking groove (111) is reduced, the sizes of the large diameter, the middle diameter and the small diameter of the thread at the slotting part of the nut body (1) are integrally reduced, and the anti-falling belt (11) is gradually compressed at the bottom to form an irregular anti-falling ring (113).
4. The self-locking anti-drop nut of claim 3, wherein: the nut is characterized in that a bolt penetrates through a nut through hole of the nut body (1), and the nut body (1) is locked through the locking pad (2) and the self-locking conical surface (112) in a matched mode, so that the bolt is locked through threads of the upper portion and the lower portion of the self-locking groove, the anti-falling belt (11) and the anti-falling ring (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010173065.1A CN111350747B (en) | 2020-03-13 | 2020-03-13 | Self-locking anti-drop nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010173065.1A CN111350747B (en) | 2020-03-13 | 2020-03-13 | Self-locking anti-drop nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111350747A CN111350747A (en) | 2020-06-30 |
| CN111350747B true CN111350747B (en) | 2021-07-27 |
Family
ID=71190713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010173065.1A Active CN111350747B (en) | 2020-03-13 | 2020-03-13 | Self-locking anti-drop nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111350747B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2042251A2 (en) * | 2007-09-29 | 2009-04-01 | GESIPA Blindniettechnik GmbH | Method for manufacturing a bolt of the swaged-on locking collar type and swaged-on locking collar type bolt |
| CN204458762U (en) * | 2015-01-31 | 2015-07-08 | 庄树镇 | A kind of new type nut |
| CN105626660A (en) * | 2016-03-25 | 2016-06-01 | 罗灿 | Independent controllable elastic sleeve lock nut |
| CN105745458A (en) * | 2013-11-22 | 2016-07-06 | 纽弗雷公司 | Riveting collar and self-locking nut |
| CN207814176U (en) * | 2017-12-27 | 2018-09-04 | 朗福紧固科技（西安）有限公司 | Combined nut |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090142155A1 (en) * | 2007-12-03 | 2009-06-04 | Tu-Global Co., Ltd. | Anti-loosening unit |
-
2020
- 2020-03-13 CN CN202010173065.1A patent/CN111350747B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2042251A2 (en) * | 2007-09-29 | 2009-04-01 | GESIPA Blindniettechnik GmbH | Method for manufacturing a bolt of the swaged-on locking collar type and swaged-on locking collar type bolt |
| CN105745458A (en) * | 2013-11-22 | 2016-07-06 | 纽弗雷公司 | Riveting collar and self-locking nut |
| CN204458762U (en) * | 2015-01-31 | 2015-07-08 | 庄树镇 | A kind of new type nut |
| CN105626660A (en) * | 2016-03-25 | 2016-06-01 | 罗灿 | Independent controllable elastic sleeve lock nut |
| CN207814176U (en) * | 2017-12-27 | 2018-09-04 | 朗福紧固科技（西安）有限公司 | Combined nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111350747A (en) | 2020-06-30 |
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