CN219366547U - Fastening anti-drop bolt - Google Patents
Fastening anti-drop bolt Download PDFInfo
- Publication number
- CN219366547U CN219366547U CN202223253140.9U CN202223253140U CN219366547U CN 219366547 U CN219366547 U CN 219366547U CN 202223253140 U CN202223253140 U CN 202223253140U CN 219366547 U CN219366547 U CN 219366547U
- Authority
- CN
- China
- Prior art keywords
- bolt
- screw
- protective sleeve
- counter bore
- drop
- 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.)
- Active
Links
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000002023 wood Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 35
- 230000000694 effects Effects 0.000 abstract description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a fastening anti-drop bolt, which comprises a stud, an outer nut and an inner nut, wherein the stud comprises a rectangular end part and a screw, the screw is provided with an outer thread, the end part of the stud is provided with an annular counter bore, the depth of the counter bore is two thirds of the length of the stud, the inner wall of the counter bore close to the end part is provided with an inner thread, the inner thread is annular and is in threaded connection with the inner thread of the stud through the outer thread of the inner thread, the annular counter bore is internally provided with a filler, and the bottom of the screw is provided with an outer nut anti-drop part; the annular counter bore is filled with rubber or a wood plug, so that the effect of reducing the bolt weight while avoiding excessive hollowness and reducing the bolt strength is achieved; the filler can play the effect of absorbing moisture, absorbs a certain moisture volume and expands to generate pressure on the inner wall of the bolt, plays the fastening effect, and the top end is sealed by using an inner nut.
Description
Technical Field
The utility model belongs to the field of connecting members, and particularly relates to a fastening anti-drop bolt.
Background
The existing bolts used for the steel bridge are required to be considered to be rust-proof and fall-proof, reduce dead weight of the bolts, reduce cost and the like.
The first and existing bolt weight reduction methods generally adopt light metal materials, but the light metal materials reduce the weight of the bolt and increase the cost for manufacturing the bolt.
Secondly, the bolt is in the use, and the bolt is easy to take place the displacement or lead to the nut to become flexible easily under various exogenic actions for a long time, drops even from the bolt, produces very big potential safety hazard.
Thirdly, the bolts are always in the windy and sunny environment, corrosion and rust can be generated, and certain potential safety hazards can be brought in long-term use.
The patent number CN114439840A discloses an anti-drop bolt protection cover and an installation method thereof, wherein the anti-drop bolt adopts a protection cover, the protection cover of the bolt is a cuboid without a cover and is in threaded connection with a gasket to fix the protection cover, the shape of the protection cover and the fixing mode thereof depend on the nut to fix the gasket and the threaded connection between the protection cover and the gasket, and after the nut is dropped or the threaded connection between the protection cover and the gasket is loosened, the anti-drop and anti-rust effects of the whole bolt are completely failed.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a fastening anti-drop bolt capable of preventing rust and drop.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a fastening anticreep bolt, includes double-screw bolt, outer nut and interior nut, and the double-screw bolt includes rectangular tip and screw rod, is provided with the external screw thread on the screw rod, the double-screw bolt tip is provided with annular counter bore, and the degree of depth of counter bore is two-thirds of the double-screw bolt length, and the inner wall that the counter bore is close to the tip is provided with the internal screw thread, and the internal screw thread is the ring-shaped and forms threaded connection with the internal screw thread of double-screw bolt through self external screw thread, is provided with the filler in the annular counter bore, and the screw rod bottom is provided with outer nut anticreep portion.
The utility model discloses a fastening anti-drop bolt, wherein an outer nut anti-drop part comprises a protective sleeve and a fixing bolt, threaded holes are formed in the center of the bottom of the protective sleeve and the corresponding position of the bottom of a screw rod, and the protective sleeve is fixedly connected with the screw rod through the fixing bolt in a threaded manner.
By the above arrangement: the outer nut anti-falling part mainly plays a role in delaying the falling time of the nut, and the small bolt with the hole at the bottom is fastened to prevent the outer nut from falling off.
The utility model discloses a fastening anti-drop bolt, which comprises a protective sleeve upper part and a protective sleeve lower part, wherein the protective sleeve upper part is fixedly connected with the protective sleeve lower part by adopting threads.
The utility model discloses a fastening anti-drop bolt, wherein the bottom of a screw is I-shaped, a protective sleeve is matched with the bottom of the I-shaped screw in shape, and the protective sleeve is clamped with the bottom of the I-shaped screw and then is fixedly connected with the bottom of the screw through threads by using a fixing bolt.
The utility model discloses a fastening anti-drop bolt, wherein a protective sleeve is in threaded connection with a screw rod.
By the above arrangement: further fasten the connection between protection casing and the screw rod, prevent that outer nut from droing.
The utility model discloses a fastening anti-drop bolt, wherein the filler is rubber or a wood plug.
By the above arrangement: the bolt part filler plays a role in absorbing moisture, and in order to lighten the bolt, the material absorbs a certain moisture volume and expands, so that the effect of increasing the pressure of the inner wall of the bolt is achieved, and the effects of rust resistance and falling resistance are achieved.
Compared with the prior art, the scheme of the utility model has the following beneficial effects:
the annular counter bore is filled with rubber or a wood plug, so that the effect of reducing the bolt weight while avoiding excessive hollowness and reducing the bolt strength is achieved; the filler can absorb water, a certain water volume is absorbed to expand to generate pressure on the inner wall of the bolt, the fastening effect is achieved, and the top end is sealed by using an inner nut;
the outer nut anti-drop device at the bottom of the bolt is divided into an upper part and a lower part, a half thread of the upper part is connected with the screw rod, and a half thread of the upper part is connected with the lower block device. The outer side threads of the lower part device are connected with the upper half device, the inner side threads are connected with the screw rod, and the bottom is provided with a threaded hole for fixing;
the anti-falling device is fastened by adding the anti-falling device through multiple connection, so that the effectiveness of the anti-falling device is ensured, and the falling possibility of the outer nut is reduced.
The utility model will be described in more detail below with reference to the drawings and examples.
Drawings
The contents and the marks in the drawings expressed in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic illustration of the present utility model;
marked in the figure as: 1. a stud; 2. an inner nut; 3. a screw; 4. a filler; 5. a protective cover; 51. the upper part of the protective sleeve; 52. the lower part of the protective sleeve; 6. a fixing bolt; 7. a threaded hole; 8. an external thread; 9. and (5) an internal thread.
Detailed Description
The following detailed description of the embodiments of the present utility model, such as the shape and construction of the components, the mutual positions and connection relationships between the components, the roles and working principles of the components, the manufacturing process and the operation and use method, etc., will be given by way of example only to assist those skilled in the art in a more complete, accurate and thorough understanding of the present utility model.
The fastening anti-drop bolt shown in fig. 1 comprises a stud 1, an outer nut and an inner nut 2, wherein the stud 1 comprises a rectangular end part and a screw 3, an outer thread 8 is arranged on the screw 3, an annular counter bore is formed in the end part of the stud 1, the depth of the counter bore is two thirds of the length of the stud 1, an inner thread 9 is arranged on the inner wall of the counter bore, which is close to the end part, the inner nut 2 is annular and is in threaded connection with the inner thread 9 of the stud 1 through the outer thread 8, a filler 4 is arranged in the annular counter bore, and an outer nut anti-drop part is arranged at the bottom of the screw 3; the outer nut anti-falling part comprises a protective sleeve 5 and a fixing bolt 6, threaded holes 7 are formed in the corresponding positions of the bottom center of the protective sleeve 5 and the bottom of the screw 3, and the protective sleeve 5 is fixedly connected with the screw 3 through the fixing bolt 6 in a threaded manner; the protective sleeve comprises a protective sleeve upper part 51 and a protective sleeve lower part 52, and the protective sleeve upper part 51 and the protective sleeve lower part 52 are fixedly connected by adopting threads; the bottom of the screw rod 3 is I-shaped, the shape of the protective sleeve 5 is matched with the bottom of the I-shaped screw rod 3, and the protective sleeve 5 is clamped with the bottom of the I-shaped screw rod 3 and then is fixedly connected with the bottom of the screw rod 3 through threads by using the fixing bolt 6; the protective sleeve 5 is in threaded connection with the screw 3; the filler 4 is rubber or wood plug.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the utility model are adopted, all within the scope of the utility model.
Claims (6)
1. The utility model provides a fastening anticreep bolt, includes double-screw bolt (1), external nut and interior nut (2), and double-screw bolt (1) are including rectangular tip and screw rod (3), are provided with external screw thread (8) on screw rod (3), a serial communication port, double-screw bolt (1) tip is provided with annular counter bore, and the degree of depth of counter bore is two-thirds of double-screw bolt (1) length, and the inner wall that the counter bore is close to the tip is provided with internal screw thread (9), and interior nut (2) are the ring form and form threaded connection with internal screw thread (9) of double-screw bolt through self external screw thread (8), are provided with filler (4) in the annular counter bore, and screw rod (3) bottom is provided with external nut anticreep portion.
2. The fastening anti-drop bolt according to claim 1, wherein the outer nut anti-drop portion comprises a protective sleeve (5) and a fixing bolt (6), threaded holes (7) are formed in corresponding positions of the bottom center of the protective sleeve (5) and the bottom of the screw (3), and the protective sleeve (5) is fixedly connected with the screw (3) through the fixing bolt (6) in a threaded mode.
3. The fastening anti-drop bolt according to claim 2, wherein the protective sleeve comprises an upper protective sleeve part (51) and a lower protective sleeve part (52), and the upper protective sleeve part (51) and the lower protective sleeve part (52) are fixedly connected through threads.
4. The fastening anti-drop bolt according to claim 2, wherein the bottom of the screw rod (3) is in an I shape, the protective sleeve (5) is matched with the bottom of the I-shaped screw rod (3), and the protective sleeve (5) is fixedly connected with the bottom of the screw rod (3) through threads by using the fixing bolt (6) after being clamped with the bottom of the I-shaped screw rod (3).
5. A fastening anti-drop bolt according to claim 2, characterized in that the protective sleeve (5) is in threaded connection with the screw (3).
6. A fastening and anti-drop bolt according to claim 1, characterized in that the filler (4) is rubber or wood plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223253140.9U CN219366547U (en) | 2022-12-06 | 2022-12-06 | Fastening anti-drop bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223253140.9U CN219366547U (en) | 2022-12-06 | 2022-12-06 | Fastening anti-drop bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219366547U true CN219366547U (en) | 2023-07-18 |
Family
ID=87148783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223253140.9U Active CN219366547U (en) | 2022-12-06 | 2022-12-06 | Fastening anti-drop bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219366547U (en) |
-
2022
- 2022-12-06 CN CN202223253140.9U patent/CN219366547U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |