CN114776689B - Novel anti-drop bolt and use method thereof - Google Patents
Novel anti-drop bolt and use method thereof Download PDFInfo
- Publication number
- CN114776689B CN114776689B CN202210530667.7A CN202210530667A CN114776689B CN 114776689 B CN114776689 B CN 114776689B CN 202210530667 A CN202210530667 A CN 202210530667A CN 114776689 B CN114776689 B CN 114776689B
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- Prior art keywords
- bolt
- main body
- falling
- drop
- shaft
- 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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- 238000000034 method Methods 0.000 title claims description 12
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000013011 mating Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000036512 infertility Effects 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
-
- 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
- F16B39/06—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 with a pin or staple parallel to the bolt axis
-
- 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
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
The invention relates to a novel anti-drop bolt, which comprises a connecting component and an anti-drop component; the connecting component comprises a bolt main body, a sealing cover and a matching main body and is used for realizing the installation and locking of the working piece; the anti-falling assembly comprises an anti-falling main body, an anti-falling shaft, a first reset spring and a second reset spring, and is used for limiting the loosening stroke of the bolt main body and playing a role in preventing falling integrally. The bolt realizes the function of preventing the bolt from falling off from the mounting hole due to the screwing of the bolt when the surgical instruments fixed together are loosened, and ensures the sterility of the instruments in the surgical environment.
Description
Technical Field
The invention relates to a connecting structure, in particular to a bolt connecting structure of a surgical instrument, and particularly relates to a novel anti-drop bolt.
Background
At present, two parts are generally connected through bolts on the surgical instrument to form a complete product capable of realizing functions. The existing scheme is that one part is provided with a common threaded hole, the other part is provided with a threaded through hole, a bolt penetrates through the through hole and then is screwed into the threaded hole, and the two parts are fastened.
When a doctor needs to adjust or replace parts of the connecting apparatus in the use process, as the common bolt does not have the anti-falling function, the bolt possibly falls out of the hole in the process of loosening the bolt, and the part is polluted by falling on the ground with bacteria, so that the part cannot be used continuously.
The invention comprises the following steps:
in order to solve the problems in the background art, the invention provides a novel anti-falling bolt, which realizes the function that the bolt cannot fall off from a mounting hole due to screwing when a fixed surgical instrument is loosened, and ensures the sterility of the instrument in a surgical environment.
The technical scheme of the invention is as follows: a novel anti-drop bolt comprises a connecting component and an anti-drop component; the connecting component comprises a bolt main body, a sealing cover and a matching main body and is used for realizing the installation and locking of the working piece; the anti-falling assembly comprises an anti-falling main body, an anti-falling shaft, a first reset spring and a second reset spring, and is used for limiting the loosening stroke of the bolt main body and playing a role in preventing falling integrally.
Preferably, the bolt main body is a hexagon head bolt, a section of smooth cylindrical surface is arranged below the bolt main body, and a blind hole is formed in the bolt main body and used for accommodating the anti-drop assembly; the side face is provided with a special-shaped guide hole for guiding the anti-falling assembly.
Further, the sealing cover is a thin disc with a hole at the center and is used for fixing the anti-falling assembly.
Further, the matching main body is a working piece with a related structure, the related structure is a threaded hole matched with the bolt main body, and a small section of cylindrical cavity with the diameter slightly larger than that of the threaded hole is formed in the bottom of the threaded hole and used for providing a working space of the anti-falling assembly.
Further, the anti-drop main body is a two-section round table; the upper section is of a disc structure and is used for being matched with the anti-drop shaft; the lower section is a special-shaped cylinder and is used for penetrating through the special-shaped guide hole of the bolt main body.
Further, the anti-falling shaft is a cylinder with different diameters, and one section of the anti-falling shaft is provided with a plane disc; the other end is provided with a cone-like body which is matched with the anti-falling main body to provide the displacement required by the anti-falling main body; two ends of the disc are respectively provided with a section of straight rod, and the straight rod at one end of the disc is used for being matched with the bolt main body to provide guidance; the straight rod at the other end passes through the sealing cover and extends out of the bolt main body.
Further, the first return spring is perpendicular to the axis of the bolt main body, one end of the first return spring is matched with the anti-falling main body, and the other end of the first return spring is matched with the bolt main body and is used for providing a movement trend that the anti-falling main body is contracted into the bolt main body.
Further, the second return spring is parallel to the axis of the bolt main body, one end of the second return spring is matched with the anti-falling shaft, and the other end of the second return spring is matched with the bolt main body to provide a movement trend of the anti-falling shaft extending out of the bolt main body.
The invention also provides a second technical scheme: the using method of the anti-drop bolt comprises the following steps: the anti-falling bolt firstly passes through the through hole on the working piece and then is screwed into the matching main body through threads, and in the process that the bolt continuously enters the threads, the exposed part of the anti-falling shaft firstly contacts the bottom of the threaded hole of the matching main body; with the increase of the screwing quantity, the anti-falling shaft is extruded into the bolt main body, the conical surface of the anti-falling shaft moves upwards to push the anti-falling main body to move outwards until the conical surface passes over the anti-falling main body, and meanwhile, the anti-falling shaft and the anti-falling main body are clamped by the diameter difference between the conical surface and the exposed straight rod; at this time, the anti-falling main body extends out of the bolt main body, and the maximum circumscribed circle formed by the anti-falling main body is larger than the inner diameter of the threaded hole, and if the anti-falling bolt is continuously loosened, the anti-falling main body can interfere with the threaded section of the matched main body to prevent the outward movement of the bolt.
Compared with the prior art, the novel anti-drop screw has the advantages that: 1. when the working piece is installed, the working piece is only required to be aligned with a slot of the matching main body, a bolt is used to pass through a through hole on the working piece, then the matching main body is screwed in through threads, in the process that the bolt continuously enters the threads, the exposed part of the anti-falling shaft is firstly contacted with the bottom of a threaded hole of the matching main body, the anti-falling shaft is extruded into the inside of the bolt main body along with the increase of the screwing quantity, the conical surface of the anti-falling shaft moves upwards to push the anti-falling main body to move outwards until the conical surface passes over the anti-falling main body, and meanwhile, the diameter difference between the conical surface and the exposed straight rod clamps the anti-falling shaft and the anti-falling main body until the working piece is completely installed in place; 2. in the loosening process of the bolt, the anti-falling main body extends out of the bolt main body, and the maximum circumscribed circle formed by the anti-falling main body is larger than the inner diameter of the threaded hole. If the anti-drop bolt is continuously loosened, the anti-drop main body can interfere with the threaded section of the matched main body to prevent the outward movement of the bolt, and meanwhile, the anti-drop main body and the threaded section of the matched main body have a certain gap, so that the bolt loosening can be successfully completed.
Drawings
Features, advantages, and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is an exploded view of an embodiment of the present invention at an angle;
FIG. 2 is a combined view of an embodiment of the invention at an angle;
FIG. 3 is a front view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along the direction A-A of the view of FIG. 3 in accordance with the present invention;
FIG. 5 is a front view of the mating body of the present invention;
fig. 6 is a cross-sectional view taken along A-A of the view of fig. 5 in accordance with the present invention.
Reference numerals illustrate: 1. a bolt body; 2. a cover; 3. an anti-falling main body; 4. an anti-drop shaft; 5. a first return spring; 6. a second return spring; 7. a mating body; 71. a mating body; 71. cylindrical cavity.
Detailed Description
The following detailed description of embodiments of the invention and the accompanying drawings are provided to illustrate the principles of the invention and not to limit the scope of the invention, i.e. the invention is not limited to the described examples.
In the description of the present invention, it should be noted that, unless otherwise indicated, the meaning of "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present invention and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "assembled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
For a better understanding of the present invention, the following describes in detail the connection device of the embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the invention provides a novel anti-drop bolt, which comprises a connecting component and an anti-drop component; the connecting component comprises a bolt main body 1, a sealing cover 2 and a matching main body 7, and is used for realizing the installation and locking of an operation piece; the anti-falling assembly comprises an anti-falling main body 3, an anti-falling shaft 4, a first reset spring 5 and a second reset spring 6, and is used for limiting the loosening stroke of the bolt main body and playing a role in preventing falling integrally.
As an alternative embodiment, the bolt main body 1 is a hexagon head bolt, a section of smooth cylindrical surface is arranged below the bolt main body, and a blind hole is formed in the bolt main body and is used for accommodating the anti-drop assembly; the side face is provided with a special-shaped guide hole for guiding the anti-falling assembly.
As an alternative embodiment, as shown in fig. 4, the matching body 7 is a working member with a related structure, and the related structure is a threaded hole 71 matched with the bolt body, and a small section of cylindrical cavity 72 with a diameter slightly larger than that of the threaded hole is formed at the bottom of the threaded hole, so as to provide a working space of the anti-drop assembly.
The anti-drop main body 3 is a two-section round table; the upper section is a wafer with large diameter and small thickness and is used for being matched with the anti-drop shaft; the lower section is a thinner special-shaped cylinder and is used for penetrating through the special-shaped guide hole of the bolt main body.
The anti-drop shaft 4 is a cylinder with different diameters, and one section of the anti-drop shaft is provided with a plane disc; the other end is provided with a cone-like body which is matched with the anti-falling main body to provide the displacement required by the anti-falling main body; two ends of the disc are respectively provided with a section of straight rod, and the straight rod at one end of the disc is used for being matched with the bolt main body to provide guidance; the straight rod at the other end passes through the sealing cover and extends out of the bolt main body.
The first return spring 6 is perpendicular to the axis of the bolt main body, one end of the first return spring is matched with the anti-falling main body, and the other end of the first return spring is matched with the bolt main body and is used for providing a movement trend that the anti-falling main body contracts into the bolt main body.
The second return spring 5 is parallel to the axis of the bolt main body, one end of the second return spring is matched with the anti-falling shaft, and the other end of the second return spring is matched with the bolt main body to provide a movement trend of the anti-falling shaft extending out of the bolt main body.
According to the application method of the novel anti-drop bolt, the anti-drop bolt firstly penetrates through the through hole in the working piece and then is screwed into the matching main body through the threads, and in the process that the bolt continuously enters the threads, the exposed part of the anti-drop shaft firstly contacts the bottom of the threaded hole of the matching main body; with the increase of the screwing quantity, the anti-falling shaft is extruded into the bolt main body, the conical surface of the anti-falling shaft moves upwards to push the anti-falling main body to move outwards until the conical surface passes over the anti-falling main body, and meanwhile, the anti-falling shaft and the anti-falling main body are clamped by the diameter difference between the conical surface and the exposed straight rod; at this time, the anti-falling main body extends out of the bolt main body, and the maximum circumscribed circle formed by the anti-falling main body is larger than the inner diameter of the threaded hole, and if the anti-falling bolt is continuously loosened, the anti-falling main body can interfere with the threaded section of the matched main body to prevent the outward movement of the bolt.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (7)
1. The novel anti-drop bolt is characterized by comprising a connecting component and an anti-drop component; the connecting component comprises a bolt main body (1), a sealing cover (2) and a matching main body (7), wherein the matching main body (7) is a working piece with a related structure, the related structure is provided with a threaded hole (71) matched with the bolt main body, the bottom of the threaded hole is provided with a cylindrical cavity (72) with a small section of diameter slightly larger than that of the threaded hole, and the connecting component is used for realizing the installation and locking of the working piece;
the anti-falling assembly comprises an anti-falling main body (3), an anti-falling shaft (4), a first reset spring (6) and a second reset spring (5), wherein the anti-falling shaft (4) is a cylinder with different diameters, one end of the anti-falling shaft is provided with a plane disc, the other end of the anti-falling shaft is provided with a cone-like body, and the cone-like body is matched with the anti-falling main body to provide the displacement required by the anti-falling main body; two ends of the disc are respectively provided with a section of straight rod, and the straight rod at one end of the disc is used for being matched with the bolt main body to provide guidance; the straight rod at the other end penetrates through the sealing cover and extends out of the bolt main body to achieve the integral anti-falling function, and the anti-falling component is used for limiting the loosening stroke of the bolt main body.
2. The novel anti-drop bolt according to claim 1, wherein the bolt main body (1) is a hexagon head bolt, a section of smooth cylindrical surface is arranged below the bolt main body, a blind hole is formed in the bolt main body, and the blind hole is used for accommodating the anti-drop component; the side face is provided with a special-shaped guide hole for guiding the anti-falling assembly.
3. A novel anti-drop bolt according to claim 1, characterized in that the cover (2) is a thin disc with a central opening for securing the anti-drop assembly.
4. The novel anti-drop bolt according to claim 1, wherein the anti-drop main body (3) is a two-section round table; the upper section is of a disc structure and is used for being matched with the anti-drop shaft; the lower section is a special-shaped cylinder and is used for penetrating through the special-shaped guide hole of the bolt main body.
5. A novel anti-drop bolt according to claim 1, characterized in that the first return spring (6) is perpendicular to the axis of the bolt body, one end of which cooperates with the anti-drop body and the other end cooperates with the bolt body for providing a movement tendency for the anti-drop body to retract into the bolt body.
6. A novel anti-drop bolt according to claim 1, characterized in that the second return spring (5) is parallel to the axis of the bolt body, one end of which is fitted to the anti-drop shaft and the other end of which is fitted to the bolt body for providing a movement tendency of the anti-drop shaft out of the bolt body.
7. A method of using a novel anti-slip bolt according to any one of claims 1 to 6, wherein the anti-slip bolt first passes through a through hole in the work piece and then is screwed into the mating body by a thread, and during the process of the bolt continuously entering the thread, the exposed part of the anti-slip shaft first contacts the bottom of the threaded hole of the mating body; with the increase of the screwing quantity, the anti-falling shaft is extruded into the bolt main body, the conical surface of the anti-falling shaft moves upwards to push the anti-falling main body to move outwards until the conical surface passes over the anti-falling main body, and meanwhile, the anti-falling shaft and the anti-falling main body are clamped by the diameter difference between the conical surface and the exposed straight rod; at this time, the anti-falling main body extends out of the bolt main body, and the maximum circumscribed circle formed by the anti-falling main body is larger than the inner diameter of the threaded hole, and if the anti-falling bolt is continuously loosened, the anti-falling main body can interfere with the threaded section of the matched main body to prevent the outward movement of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530667.7A CN114776689B (en) | 2022-05-16 | 2022-05-16 | Novel anti-drop bolt and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530667.7A CN114776689B (en) | 2022-05-16 | 2022-05-16 | Novel anti-drop bolt and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114776689A CN114776689A (en) | 2022-07-22 |
| CN114776689B true CN114776689B (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210530667.7A Active CN114776689B (en) | 2022-05-16 | 2022-05-16 | Novel anti-drop bolt and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114776689B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154097A (en) * | 2014-07-15 | 2014-11-19 | 天津达人社金属制品有限公司 | Anti-loose set screw |
| CN205895848U (en) * | 2016-08-04 | 2017-01-18 | 上海爱瑞德五金有限公司 | Locking shockproof hexagon socket head cap screw of high strength |
| CN110778591A (en) * | 2019-09-24 | 2020-02-11 | 江苏永昊高强度螺栓有限公司 | Bolt anti-loosening structure |
| CN210769753U (en) * | 2019-06-21 | 2020-06-16 | 浙江高强度紧固件有限公司 | Locking bolt assembly that moves |
| CN213575104U (en) * | 2020-09-30 | 2021-06-29 | 苏州昭伍亿精密五金有限公司 | Anti-theft bolt |
-
2022
- 2022-05-16 CN CN202210530667.7A patent/CN114776689B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154097A (en) * | 2014-07-15 | 2014-11-19 | 天津达人社金属制品有限公司 | Anti-loose set screw |
| CN205895848U (en) * | 2016-08-04 | 2017-01-18 | 上海爱瑞德五金有限公司 | Locking shockproof hexagon socket head cap screw of high strength |
| CN210769753U (en) * | 2019-06-21 | 2020-06-16 | 浙江高强度紧固件有限公司 | Locking bolt assembly that moves |
| CN110778591A (en) * | 2019-09-24 | 2020-02-11 | 江苏永昊高强度螺栓有限公司 | Bolt anti-loosening structure |
| CN213575104U (en) * | 2020-09-30 | 2021-06-29 | 苏州昭伍亿精密五金有限公司 | Anti-theft bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114776689A (en) | 2022-07-22 |
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