CN115451005A - Combination bolt with quick automatic locking function - Google Patents
Combination bolt with quick automatic locking function Download PDFInfo
- Publication number
- CN115451005A CN115451005A CN202211157483.7A CN202211157483A CN115451005A CN 115451005 A CN115451005 A CN 115451005A CN 202211157483 A CN202211157483 A CN 202211157483A CN 115451005 A CN115451005 A CN 115451005A
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- China
- Prior art keywords
- bolt
- nut
- inner nut
- movable cavity
- head
- 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
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 11
- 230000007246 mechanism Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F16B37/00—Nuts or like thread-engaging members
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a combined bolt with a quick automatic locking function, which comprises a bolt and a nut, wherein the nut comprises an outer nut and an inner nut movably arranged in the outer nut, the inner nut is internally provided with an internal thread matched with the bolt, and the bolt can penetrate through the outer nut and the inner nut; the inner nut is conical, and the diameter of the inner nut is gradually increased in the direction away from the head of the bolt; a hollow movable cavity is arranged in the outer nut, the movable cavity is conical, and the diameter of the movable cavity is gradually increased in the direction away from the head of the bolt; a spring which is contacted with the inner nut is arranged on one side of the movable cavity, which is far away from the head part of the bolt; the inner nut is detachable and comprises at least two nut sheets which are enclosed; the bolt and the nut are improved, so that the bolt and the nut are fastened not only in a screwing mode but also in a pressing mode during assembly, the assembly time is greatly shortened, the assembly process is more time-saving and labor-saving, and the assembly efficiency is improved.
Description
Technical Field
The invention relates to the technical field of bolts, in particular to a combined bolt with a quick automatic locking function.
Background
The bolt is used as a mechanical part and is matched with a cylindrical threaded fastener of a nut. A fastener consisting of a head and a screw is matched with a nut and used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection. The traditional bolt can only be fastened in a screwing mode, if the thread of the bolt is long, a large amount of time is consumed for fastening, and the screwing process is time-consuming and labor-consuming.
The applicant is dedicated to the research of the structure of firearms, and applies for a connecting cradle head with publication number CN217383977U in 2022, wherein the connecting cradle head comprises a U-shaped base, the base comprises a bottom plate, a first side plate fixedly connected to one side of the top of the bottom plate, a second side plate movably connected to the other side of the top of the bottom plate, and a power mechanism arranged on the bottom plate; a notch is formed in the bottom plate, and the second side plate is movably arranged in the notch; the bottom of the bottom plate is provided with a first threaded hole which is used for being connected with a quick mounting plate bolt of a tripod; the power mechanism is used for driving the first side plate to move towards the second side plate, and the power mechanism can continuously adjust the distance between the first side plate and the second side plate. However, in actual use, the applicant found: because the traditional bolt is adopted to fasten the firearms, the fastening process is time-consuming and labor-consuming, and good opportunities are easily missed in case of urban extreme events.
Disclosure of Invention
To traditional bolt revolve twist the technical problem that fastening part process wastes time and energy, the utility model provides a combination bolt with quick automatic locking function.
The technical scheme adopted by the invention is as follows: the combined bolt with the rapid automatic locking function comprises a bolt and a nut, wherein the nut comprises an outer nut and an inner nut movably arranged in the outer nut, an inner thread matched with the bolt is arranged in the inner nut, and the bolt can penetrate through the outer nut and the inner nut; the inner nut is conical, and the diameter of the inner nut is gradually increased in the direction away from the head of the bolt; a hollow movable cavity is arranged in the outer nut, the movable cavity is conical, and the diameter of the movable cavity is gradually increased in the direction far away from the head of the bolt; the inner nut is arranged in the movable cavity and can move randomly along the axial direction of the movable cavity in the movable cavity; a spring which is contacted with the inner nut is arranged on one side of the movable cavity away from the head part of the bolt; the inner nut is detachable and comprises at least two nut pieces.
Compared with the traditional bolt and nut fastener, the bolt and nut fastener is improved, so that the bolt and the nut are not fastened by only screwing during assembly, the assembly time is greatly reduced, the assembly process is more time-saving and labor-saving, and the assembly efficiency is improved. The specific principle is as follows: because the inner nut is split and is conical, the inner nut can be folded into a complete bolt in the movable cavity and can also be unfolded in the movable cavity; when the bolt penetrates through the inner nut, when the external force applied by a person is greater than the acting force of the spring, the spring is compressed, the bolt extrudes the inner nut, the inner nut is expanded, the bolt can continuously penetrate through the inner nut in a pressing mode, after the distance between the head of the bolt and the outer nut is consistent with the distance between the head of the bolt and the fixed piece, the bolt is stopped being pressed, under the acting force of the spring, the spring applies an acting force towards the head of the bolt to the inner nut, the nut piece is driven to surround the bolt to form a complete inner nut, and the fixed piece is fixed; and the spring continuously supports against the inner nut, so that the problem of looseness of the inner nut can be solved, and multiple purposes can be achieved. Compared with the traditional bolt fastening mode, the bolt and the nut are fastened in a pressing mode, so that the assembling time is greatly shortened, the assembling process is more time-saving and labor-saving, and the assembling efficiency is improved. The bolt is loosened in the same way as the traditional way by screwing.
Furthermore, a guide block is arranged on the nut piece, and a guide groove matched with the guide block is arranged on the outer nut. When the nut piece moves in the movable cavity, the guide block moves along the guide groove, namely, the nut piece can only move axially but not move radially, the inner nut is limited radially, and the phenomenon that the inner nut slips when moving radially in the outer nut is avoided.
Furthermore, the guide block is perpendicular to the bolt, so that the sliding between the inner nut and the outer nut is smoother.
Further, the guide block and the nut piece are integrally formed, and the connection stability of the guide block and the nut piece is guaranteed.
Furthermore, one side of the thread tooth form of the bolt, which is close to the head of the bolt, is a plane, and the side of the thread tooth form, which is far away from the head of the bolt, is a conical inclined plane. The thread form of the bolt of the invention is different from that of the traditional bolt, which is one of the important innovation points of the invention. Both sides of a thread form of the traditional bolt are inclined planes which are common threads. The side of the thread tooth form, which is close to the bolt head, is a plane, and the side of the thread tooth form, which is far away from the bolt head, is a conical inclined plane. When the bolt is inserted into the inner nut, the conical inclined surface can effectively reduce the friction force between the bolt and the inner nut, so that the bolt can be pressed into the inner nut more easily, and after the bolt and the inner nut are assembled, the thread profile of the plane of the bolt and the thread of the inner nut can be meshed more tightly, thereby preventing the bolt from loosening.
Furthermore, the spring is an alloy spring and has the advantages of high strength, good toughness, corrosion resistance, long service life and the like.
Further, the spring is a nickel-titanium alloy spring.
Furthermore, the inner nut comprises three nut pieces, and from the practical use condition, the nut pieces cannot be arranged too much, so that the area of the nut pieces is small and the nut pieces can slide out of the outer nut; too few nut pieces are arranged, so that the assembly between the bolt and the inner nut is difficult; for this reason, the present invention preferably has three nut pieces.
The invention has the beneficial effects that:
1. the bolt and the nut are improved, so that the bolt and the nut are fastened not only in a screwing mode but also in a pressing mode during assembly, the assembly time is greatly shortened, the assembly process is more time-saving and labor-saving, and the assembly efficiency is improved.
2. The nut piece can only axially move but not radially move in the outer nut through the guide block, and the inner nut is limited in the radial direction, so that the phenomenon that the inner nut slips when radially moving in the outer nut is avoided.
3. One side of the thread tooth form, which is close to the head of the bolt, is a plane, and the side, which is far away from the head of the bolt, is a conical inclined plane; when the bolt is inserted into the inner nut, the friction force between the bolt and the inner nut can be effectively reduced, so that the bolt can be pressed into the inner nut more easily, and after the bolt and the inner nut are assembled, the thread profile of the plane of the bolt and the thread of the inner nut can be meshed more tightly, so that the problem of bolt looseness is solved.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 2.
Fig. 4 is a sectional view of B-B in fig. 2.
Fig. 5 is a schematic view of the structure of the bolt.
Fig. 6 is a schematic structural view of the inner nut.
Labeled in the figure as:
1. a bolt; 2. a nut; 3. an outer nut; 4. an inner nut;
301. a movable cavity; 302. a spring; 303. a guide groove; 401. a nut slice; 402. a guide block;
Detailed Description
In the description of the present invention, it should be noted that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is further described below with reference to the accompanying drawings.
Example one
Referring to fig. 1 to 6, the combined bolt with the quick automatic locking function of the invention comprises a bolt 1 and a nut 2, wherein the nut 2 comprises an outer nut 3 and an inner nut 4 movably arranged in the outer nut 3, an inner thread matched with the bolt 1 is arranged in the inner nut 4, and the bolt 1 can penetrate through the outer nut 3 and the inner nut 4; the inner nut 4 is conical, and the diameter of the inner nut 4 is gradually increased in the direction away from the head of the bolt; a hollow movable cavity 301 is formed in the outer nut 3, the movable cavity 301 is conical, and the diameter of the movable cavity 301 is gradually increased in the direction away from the head of the bolt; the inner nut 4 is arranged in the movable cavity 301, and the inner nut 4 can move freely in the movable cavity 301 along the axial direction of the movable cavity; a spring 302 which is contacted with the inner nut 4 is arranged on one side of the movable cavity 301 away from the head part of the bolt; the inner nut 4 is detachable and comprises three nut pieces 401 which are enclosed. Compared with the traditional bolt and nut fastener, the bolt and nut fastener is improved, so that the bolt and the nut are not fastened only in a screwing mode during assembly, the assembly time is greatly shortened, the assembly process is more time-saving and labor-saving, and the assembly efficiency is improved. The specific principle is as follows: because the inner nut is split and conical, the inner nut can be folded into a complete bolt in the movable cavity and can also be unfolded in the movable cavity; when the bolt penetrates through the inner nut, when the external force applied by a person is greater than the acting force of the spring, the spring is compressed, the bolt extrudes the inner nut, the inner nut is expanded, the bolt can continuously penetrate through the inner nut in a pressing mode, after the distance between the head of the bolt and the outer nut is consistent with the distance between the head of the bolt and the fixed piece, the bolt is stopped being pressed, under the acting force of the spring, the spring applies an acting force towards the head of the bolt to the inner nut, the nut piece is driven to surround the bolt to form a complete inner nut, and the fixed piece is fixed; and the spring continuously supports against the inner nut, so that the problem of looseness of the inner nut can be solved, and multiple purposes can be achieved. Compared with the traditional bolt fastening mode, the bolt and the nut are fastened in a pressing mode, so that the assembling time is greatly shortened, the assembling process is more time-saving and labor-saving, and the assembling efficiency is improved. The bolt is loosened in the same way as the traditional way and is also loosened in a screwing way.
Referring to fig. 4 and 6, in the present embodiment, a guide block 402 is provided on the nut piece 401, and a guide groove 303 matching the guide block 402 is provided on the outer nut 3. When the nut piece moves in the movable cavity, the guide block moves along the guide groove, namely, the nut piece can only move axially but not move radially, the inner nut is limited radially, and the phenomenon that the inner nut slips when moving radially in the outer nut is avoided.
Referring to fig. 6, the guide block 402 of the present embodiment is perpendicular to the bolt 1, so that the sliding between the inner nut and the outer nut is smoother.
The guide block 402 and the nut piece 401 of the embodiment are integrally formed, so that the connection stability of the guide block and the nut piece is ensured.
The spring 302 of the embodiment is a nickel-titanium alloy spring, and has the advantages of high strength, good toughness, corrosion resistance, long service life and the like.
Example two
Referring to fig. 5, on the basis of the first embodiment, the present embodiment improves the thread of the bolt 1, in which the side of the thread profile of the bolt 1 close to the bolt head is a flat surface, and the side away from the bolt head is a tapered inclined surface. The thread form of the bolt of the invention is different from that of the traditional bolt, which is one of the important innovation points of the invention. Both sides of a thread form of the traditional bolt are inclined planes which are common threads. The side of the thread tooth form, which is close to the bolt head, is a plane, and the side of the thread tooth form, which is far away from the bolt head, is a conical inclined plane. When the bolt is inserted into the inner nut, the conical inclined surface can effectively reduce the friction force between the bolt and the inner nut, plays a role in guiding, enables the bolt to be pressed into the inner nut more easily, and after the bolt and the inner nut are assembled, the thread profile of the plane of the bolt and the thread of the inner nut can be meshed more tightly, and the problem of preventing the bolt from loosening is solved.
EXAMPLE III
The outer nut 3 of the present invention can be made into different shapes according to different situations of use on site. In this embodiment, taking the connecting pan/tilt head disclosed in chinese patent CN217383977U (hereinafter referred to as "patent one") as an example, the outer nut 3 is designed as the second side plate in patent one, the inner nut 4 is disposed in the second side plate, and the bolt in patent one adopts the bolt 1 of the present invention. When fixing the firearms in the patent one, adjust the distance between second curb plate and the first curb plate earlier, can accomplish the fixed of bolt and second curb plate through pressing the bolt, the assemble duration that has significantly reduced makes assembling process labour saving and time saving more, has improved assembly efficiency. An efficient assembly process would not miss opportunities in the event of urban extremes.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The combined bolt with the rapid automatic locking function comprises a bolt (1) and a nut (2), and is characterized in that the nut (2) comprises an outer nut (3) and an inner nut (4) movably arranged in the outer nut (3), an internal thread matched with the bolt (1) is arranged in the inner nut (4), and the bolt (1) can penetrate through the outer nut (3) and the inner nut (4);
the inner nut (4) is conical, and the diameter of the inner nut (4) is gradually increased in the direction away from the head of the bolt;
a hollow movable cavity (301) is arranged in the outer nut (3), the movable cavity (301) is conical, and the diameter of the movable cavity (301) is gradually increased in the direction away from the head of the bolt; the inner nut (4) is arranged in the movable cavity (301), and the inner nut (4) can move randomly along the axial direction of the movable cavity in the movable cavity (301); a spring (302) which is contacted with the inner nut (4) is arranged on one side of the movable cavity (301) away from the head part of the bolt;
the inner nut (4) is detachable and comprises at least two nut pieces (401) which are enclosed.
2. A jack bolt with a quick automatic lock function according to claim 1 wherein the nut piece (401) is provided with a guide piece (402) and the outer nut (3) is provided with a guide groove (303) matching the guide piece (402).
3. Combination bolt with quick automatic locking according to claim 2, characterised in that the guide block (402) is perpendicular to the bolt (1).
4. A jack bolt with a snap-action auto-lock function according to claim 2 wherein said guide piece (402) is formed integrally with the nut piece (401).
5. Combination bolt with rapid automatic locking function according to claim 1, characterized in that the side of the thread profile of the bolt (1) close to the head of the bolt is a plane, and the side far away from the head of the bolt is a tapered bevel.
6. Combination bolt with quick automatic locking function according to claim 1, characterized in that the spring (302) is an alloy spring.
7. Combination bolt with quick self-locking function according to claim 6, characterized in that the spring (302) is a nitinol spring.
8. Combination bolt with quick automatic locking according to claim 1, characterised in that the inner nut (4) comprises three nut pieces (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211157483.7A CN115451005A (en) | 2022-09-22 | 2022-09-22 | Combination bolt with quick automatic locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211157483.7A CN115451005A (en) | 2022-09-22 | 2022-09-22 | Combination bolt with quick automatic locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115451005A true CN115451005A (en) | 2022-12-09 |
Family
ID=84306919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211157483.7A Pending CN115451005A (en) | 2022-09-22 | 2022-09-22 | Combination bolt with quick automatic locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115451005A (en) |
-
2022
- 2022-09-22 CN CN202211157483.7A patent/CN115451005A/en active Pending
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