CN114165510B - Antitheft self-locking integrated combined bolt fastener - Google Patents
Antitheft self-locking integrated combined bolt fastener Download PDFInfo
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- CN114165510B CN114165510B CN202111551412.0A CN202111551412A CN114165510B CN 114165510 B CN114165510 B CN 114165510B CN 202111551412 A CN202111551412 A CN 202111551412A CN 114165510 B CN114165510 B CN 114165510B
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- locking
- nut
- theft
- inner nut
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- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 230000002265 prevention Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
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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
- F16B37/00—Nuts or like thread-engaging members
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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
- F16B39/02—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
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses an anti-theft self-locking integrated combined bolt fastener, and belongs to the field of fasteners. The combined bolt fastener comprises a bolt, a locking gasket and an anti-theft nut component, wherein the anti-theft nut component comprises an inner nut, an outer screwing cap, a retainer ring spring and a connecting bolt, the connecting bolt is used for transmitting torque between the outer screwing cap and the inner nut, so that the anti-theft nut and the bolt are conveniently fastened and connected, the outer screwing cap and the inner nut can freely rotate after the anti-theft nut is fastened and the connecting bolt is disassembled, and the connecting bolt cannot be reinstalled after being disassembled. By adopting the design, the locking gasket is utilized to prevent the fastener from loosening after locking, meanwhile, the ingenious anti-theft nut design is utilized, the outer screwing cap is separated from the inner nut by dismantling the connecting bolt after locking the nut, and meanwhile, the check ring is utilized to block the connecting hole matched with the connecting bolt on the inner nut, so that the anti-theft and self-locking functions of the bolt fastener are realized, and the locking nut locking device has the advantages of being simple and ingenious in structure, simple and convenient to operate and the like.
Description
Technical Field
The invention relates to a fastener, in particular to an anti-theft self-locking integrated combined bolt fastener.
Background
The bolt is a fastener which is widely applied, is generally matched with a nut for use, and has the characteristics of simple structure, convenient manufacture, convenient fastening and the like. The common bolt-nut fastener is usually screwed or disassembled by using tools such as a spanner, so that the common bolt-nut fastener has the characteristic of easy disassembly.
In some applications with motion or vibration, such as automobiles, railways, airplanes, and various mechanical devices, it is often desirable that the bolt-and-nut fastener have a self-locking function to prevent the nut from loosening due to vibration. Therefore, many self-locking bolts, such as an "automatic locking and loosening self-locking bolt" disclosed in chinese patent No. ZL201120457337.7 and a "self-locking bolt" disclosed in chinese patent application No. 201510462312.9, are also appeared on the market, and the locking bolts are mostly realized in a manner of expanding and locking the fastening end, so that locking actions are relatively more.
In addition, in some special occasions, such as the infrastructures of railways, bridges, power transmission towers and the like arranged in the wild, the phenomenon that the infrastructures are possibly stolen or damaged by lawbreakers exists, and the infrastructures are extremely unsafe hidden danger or are directly damaged. Therefore, the bolt-nut fastener for these use cases is also required to have an antitheft function. The existing anti-theft bolts in the market generally comprise permanent fixing type protective cover anti-screwing type bolts, bolt anti-disassembling type bolts, special-shaped screwing groove type bolts and the like. The permanently fixed anti-theft bolt is welded and the like to permanently fix the bolt and the nut together, so as to achieve the aim of preventing disassembly; the anti-screwing type anti-theft bolt with the protection cover adopts the protection cover to cover the bolt cap head or the nut, so that screwing acting force cannot be applied to tools such as a spanner; the bolt anti-disassembly type anti-theft bolt adopts a bolt design which is not easy to disassemble to prevent the bolt from being disassembled; the special-shaped screwing groove type anti-theft bolt is provided with a screwing groove with a specific shape, and a special spanner is required to be used for disassembling, so that the anti-theft purpose is achieved.
The existing self-locking bolt and anti-theft bolt solve the problems of looseness prevention and theft prevention of the bolt to a certain extent, but more or less have the defects of excessively complex structural design, complicated fastening operation process, single looseness prevention or theft prevention function and the like. In view of the above-mentioned problems with existing anti-theft bolt fasteners, in combination with market demands, there is a need for further improvements to existing anti-theft bolt fasteners.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to provide an anti-theft self-locking integrated combined bolt fastener, which solves the problems of complex structure, complex operation, single function and the like of the traditional anti-theft bolt fastener.
2. Technical proposal
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the invention relates to an anti-theft self-locking integrated combined bolt fastener which comprises a bolt, an anti-loosening gasket and an anti-theft nut component, wherein the anti-loosening gasket is sleeved on a screw rod of the bolt, the anti-loosening nut component is matched with the screw rod of the bolt in a threaded manner, and a rotation stopping structure is arranged between the anti-loosening gasket and the screw rod of the bolt; the anti-theft nut assembly comprises an inner nut, an outer screwing cap, a retainer ring spring and a connecting bolt, wherein the inner nut is provided with an inner thread matched with a screw rod of a bolt, the outer screwing cap is sleeved on the outer side of the inner nut and can axially and freely rotate relative to the inner nut, and the outer screwing cap is provided with a screwing structure capable of being matched with a tool; the connecting bolt is laterally and detachably arranged between the inner nut and the outer screwing cap and used for realizing torque transmission between the outer screwing cap and the inner nut, the check ring is arranged on the inner side of the outer screwing cap and sleeved on one side of the inner nut, and the check ring spring is arranged between the check ring and the outer screwing cap; after the connecting bolt is disassembled, the check ring can axially move relative to the inner nut under the action of the check ring spring so as to block the connecting hole on the inner nut matched with the connecting bolt.
Still further, the anti-loosening structure between the anti-loosening gasket and the screw of the bolt comprises a slot arranged on the screw of the bolt and a plugboard arranged on the anti-loosening gasket, wherein the anti-loosening gasket is axially sleeved on the screw of the bolt, and the plugboard is axially inserted in the slot of the screw.
Furthermore, the connecting bolt adopts a locking screw, a lateral threaded hole in threaded connection with the locking screw is formed in the side face of the inner nut, a lateral through hole corresponding to the lateral threaded hole is formed in the side face of the outer screwing cap, and the locking screw penetrates through the lateral through hole to be screwed into the lateral threaded hole of the inner nut.
Further, at least two locking screws are arranged in the circumferential direction of the inner nut.
Furthermore, the front end of the inner nut is provided with a limit step, the front end of the outer screwing cap is provided with an inner flanging clamped with the limit step, and the front end face of the inner nut can extend out of the inner flanging of the outer screwing cap to be propped against the anti-loose gasket.
Further, the screwing structure of the outer screwing cap is an outer hexagon structure.
Furthermore, one end of the screw rod of the bolt is provided with an outer hexagonal or an inner hexagonal cap head.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) The invention relates to an anti-theft self-locking integrated combined bolt fastener which comprises a bolt, an anti-loosening gasket and an anti-theft nut component, wherein a rotation stopping structure is arranged between the anti-loosening gasket and a screw rod of the bolt; by adopting the design, the locking gasket is utilized to prevent the fastener from loosening after locking, meanwhile, the ingenious anti-theft nut design is utilized, the outer screwing cap is separated from the inner nut by dismantling the connecting bolt after locking the nut, the inner nut cannot be driven to rotate by rotating the outer screwing cap, and meanwhile, the connecting hole matched with the connecting bolt on the inner nut is blocked by the check ring, so that the connecting bolt cannot be reinstalled, the anti-theft and self-locking functions of the bolt fastener are realized, and the anti-theft nut locking device has the advantages of being simple and ingenious in structure, simple and convenient to operate and the like;
(2) The anti-theft self-locking integrated combined bolt fastener comprises an inserting groove arranged on a screw rod of a bolt and an inserting plate arranged on the anti-theft gasket, wherein the anti-theft gasket is axially sleeved on the screw rod of the bolt, and the inserting plate is axially inserted in the inserting groove of the screw rod;
(3) The invention relates to an anti-theft self-locking integrated combined bolt fastener, wherein a connecting bolt adopts a locking screw, the side surface of an inner nut is provided with a lateral threaded hole in threaded connection with the locking screw, the side surface of an outer screwing cap is provided with a lateral through hole corresponding to the lateral threaded hole, and the locking screw passes through the lateral through hole and is screwed into the lateral threaded hole of the inner nut; the locking screw is used as the connecting bolt, and can be stably connected with the inner nut, so that the screwing torque can be better transmitted, the anti-theft nut is not easy to fall off, the anti-theft function is triggered when the anti-theft nut is not screwed down, and the combined bolt fastener is more stable and reliable to use;
(4) According to the anti-theft self-locking integrated type combined bolt fastener, at least two locking screws are arranged in the circumferential direction of the inner nut, and a plurality of locking screws are adopted, so that the reliability of connection between the outer screw cap and the inner nut can be ensured, larger torque can be transmitted, and further, the bolt fastener can be ensured to be locked more firmly;
(5) According to the anti-theft self-locking integrated combined bolt fastener, the front end of the inner nut is provided with the limiting step, the front end of the outer screwing cap is provided with the inner flanging clamped with the limiting step, the front end face of the inner nut can extend out of the inner flanging of the outer screwing cap to be abutted against the anti-loosening gasket, on one hand, the limiting step is matched with the inner flanging to axially limit the outer screwing cap, and meanwhile, the locking effect of the inner nut can be directly acted on the anti-loosening gasket, so that the bolt is more firm and stable after self-locking and is not easy to loosen;
(6) The anti-theft self-locking integrated combined bolt fastener has the advantages that the screwing structure of the external screwing cap is of an external hexagonal structure, one end of a screw rod of a bolt is provided with the external hexagonal or internal hexagonal cap head, the anti-theft self-locking integrated combined bolt fastener is convenient to match with tools such as an existing wrench, and the use is simple and convenient.
Drawings
FIG. 1 is a schematic perspective view of an anti-theft self-locking integrated combination bolt fastener of the invention;
FIG. 2 is a schematic diagram of a split structure of an anti-theft self-locking integrated composite bolt fastener of the invention;
FIG. 3 is a schematic cross-sectional view of an anti-theft self-locking integrated composite bolt fastener of the present invention;
FIG. 4 is a schematic cross-sectional view of an anti-theft self-locking integrated combination bolt fastener of the present invention after removal of a connecting bolt;
fig. 5 is a schematic cross-sectional view of an anti-theft nut assembly in an anti-theft self-locking integrated composite bolt fastener of the invention.
Reference numerals in the schematic drawings illustrate:
1. a bolt; 1-1, a slot; 2. a locking gasket; 2-1, inserting plates; 3. an anti-theft nut assembly; 3-1, an inner nut; 3-1a, lateral threaded holes; 3-1b, limiting steps; 3-2, an external screw cap; 3-2a, lateral through holes; 3-2b, inner flanging; 3-3, locking the screw; 3-4, check ring; 3-5, a retainer ring spring.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings and examples.
Examples (example)
Referring to fig. 1 to 5, an anti-theft self-locking integrated bolt fastener of the present embodiment includes a bolt 1, an anti-loose washer 2 and an anti-theft nut component 3, wherein the anti-loose washer 2 is sleeved on a screw of the bolt 1, and the anti-theft nut component 3 is in threaded fit with the screw of the bolt 1. A rotation stopping structure is arranged between the anti-loosening gasket 2 and the screw of the bolt 1, and the anti-loosening gasket 2 cannot rotate relative to the bolt 1 by utilizing the rotation stopping structure, so that the anti-loosening structure can play a role in self locking and loosening. The anti-theft nut component 3 comprises an inner nut 3-1, an outer screwing cap 3-2, a retainer ring 3-4, a retainer ring spring 3-5 and a connecting bolt, wherein the inner nut 3-1 is provided with an inner thread matched with a screw rod of a bolt 1, the outer screwing cap 3-2 is sleeved outside the inner nut 3-1, the outer screwing cap 3-2 can freely rotate axially relative to the inner nut 3-1, and the outer screwing cap 3-2 is provided with a screwing structure capable of being matched with a tool; the connecting bolt is laterally and detachably arranged between the inner nut 3-1 and the outer screwing cap 3-2 and is used for realizing torque transmission between the outer screwing cap 3-2 and the inner nut 3-1, the retainer ring 3-4 is arranged on the inner side of the outer screwing cap 3-2 and sleeved on one side of the inner nut 3-1, and the retainer ring spring 3-5 is arranged between the retainer ring 3-4 and the outer screwing cap 3-2; after the connecting bolt is disassembled, the retainer ring 3-4 can axially move relative to the inner nut 3-1 under the action of the retainer ring spring 3-5 so as to block a connecting hole on the inner nut 3-1, which is matched with the connecting bolt. The condition of the bolt fastener when not in use is as shown in fig. 2, with the connecting bolt in the anti-theft nut assembly 3. Fig. 3 is a cross-sectional view of a screwed state of a bolt fastener, fig. 4 is a cross-sectional view of an anti-theft state of the bolt fastener, when the anti-theft device is used, a bolt 1 is penetrated into a connecting hole of a connected piece, a locking washer 2 and an anti-theft nut component 3 are installed on one side of a screw end of the bolt 1, since the connecting bolt connects an inner nut 3-1 and an outer screwing cap 3-2 together (as shown in fig. 3) at the moment, a retainer ring 3-4 is positioned on one side of the connecting bolt, and the inner nut 3-1 can be synchronously driven to rotate together by rotating a screwing structure of the outer screwing cap 3-2 through a tool, so that the fastening of the anti-theft nut can be realized, and the self-locking function is realized by matching with the design of the locking washer 2; after the anti-theft nut is locked, the connecting bolt is detached (which is equivalent to the safety bolt for removing the anti-theft nut component 3), at the moment, the retainer ring 3-4 moves axially along the inner nut 3-1 under the action of the retainer ring spring 3-5, and the bolt hole connected with the connecting bolt at the outer side of the inner nut 3-1 is blocked, so that the connecting bolt cannot be installed again, the state shown in fig. 4 is formed, at the moment, the connecting effect of the connecting bolt is lost between the inner nut 3-1 and the outer screwing cap 3-2, and the inner nut 3-1 cannot be driven to rotate any more when the outer screwing cap 3-2 is rotated by using tools, so that the aim that the inner nut 3-1 cannot be detached by conventional technical means is fulfilled, and the anti-theft function of the fastener is realized.
As shown in fig. 2, 3 and 4, in the present embodiment, the anti-rotation structure between the anti-loosening pad 2 and the screw of the bolt 1 includes a slot 1-1 provided on the screw of the bolt 1 and a plugboard 2-1 provided on the anti-loosening pad 2, the slot 1-1 extends axially from the screw end of the bolt 1, the plugboard 2-1 is located inside the central hole of the anti-loosening pad 2 and extends axially, and when the anti-loosening pad 2 is axially sleeved on the screw of the bolt 1, the plugboard 2-1 is axially inserted into the slot 1-1 of the screw. In the process of locking the nut, the insert plate 2-1 extending in the axial direction is used as a filling slot 1-1 on the screw rod, so that the screw rod is not easy to shrink and deform backwards, the locking firmness and reliability of the nut and the screw rod can be guaranteed, and meanwhile, the anti-loosening gasket 2 can only move along the axial direction and cannot rotate, so that the gasket cannot be driven to rotate by the backward extrusion of the connecting piece to the anti-loosening gasket 2 to loosen the nut, a stable anti-loosening effect is achieved, a self-locking function is realized after the anti-theft nut and the bolt are screwed, and the locking firmness is further improved.
The connecting bolt has the characteristics of being capable of disassembling and transmitting the torque between the outer screwing cap 3-2 and the inner nut 3-1, and the parts meeting the two conditions can be used as the connecting bolt, such as the existing bolts and the like. In this embodiment, the above-mentioned connecting bolt preferably adopts a locking screw 3-3, a lateral threaded hole 3-1a in threaded connection with the locking screw 3-3 is provided on the side surface of the inner nut 3-1, a lateral through hole 3-2a corresponding to the above-mentioned lateral threaded hole 3-1a is provided on the side surface of the outer screw cap 3-2, the aperture of the lateral through hole 3-2a is adapted to the outer diameter of the locking screw 3-3, and the locking screw 3-3 passes through the lateral through hole 3-2a and is screwed into the lateral threaded hole 3-1a of the inner nut 3-1. The locking screw 3-3 is used as a connecting bolt and can be stably connected with the inner nut 3-1, so that screwing torque can be better transmitted, the locking screw 3-3 is not easy to fall off, the anti-theft function is prevented from being triggered when the anti-theft nut is not screwed, and the combined bolt fastener is more stable and reliable to use. The lateral threaded hole 3-1a can be designed as a through hole or a blind hole, and when the through hole is adopted, the end part of the main locking screw 3-3 can not extend into the internal threaded hole of the internal nut 3-1, so that the internal nut 3-1 is prevented from being normally screwed on a screw rod. Further, the locking screws 3-3 are at least two in the circumferential direction of the inner nut 3-1, and the plurality of locking screws 3-3 are adopted, so that the connection reliability of the outer screwing cap 3-2 and the inner nut 3-1 can be ensured, larger torque can be transmitted, and further, the locking of the bolt fastener can be ensured to be firmer. The retainer ring 3-4 is preferably made of hard opaque materials, so as to prevent illegal personnel from damaging the retainer ring; the retainer spring 3-5 is also preferably made of a material which is not easy to rust, so that the service life of the retainer spring 3-5 is prolonged.
In addition, as shown in fig. 5, in the present embodiment, the front end of the inner nut 3-1 is provided with a limiting step 3-1b, the front end of the outer screw cap 3-2 is provided with an inner flange 3-2b that is clamped with the limiting step 3-1b, and the front end surface of the inner nut 3-1 can extend out of the inner flange 3-2b of the outer screw cap 3-2 to abut against the anti-loose gasket 2. On the one hand, the limit step 3-1b and the inward flanging 3-2b are matched to axially limit the outward screwing cap 3-2, and meanwhile, the locking effect of the inner nut 3-1 can be directly acted on the anti-loosening gasket 2, so that the bolt is more firm and stable after self-locking, and is not easy to loosen.
In order to facilitate the screwing operation of the fastener, the screwing structure of the external screwing cap 3-2 is an external hexagonal structure, one end of the screw rod of the bolt 1 is provided with an external hexagonal or internal hexagonal cap head, and the external hexagonal or internal hexagonal cap head is convenient to be matched with tools such as an existing wrench and the like, and is simple and convenient to use. The outer screw cap 3-2 is preferably made of a hard material such as stainless steel or the like to ensure sufficient structural strength to exert sufficient screwing torque.
When the anti-theft self-locking integrated combined bolt fastener is used, a bolt 1 penetrates into a connecting hole of a connected piece from the screw end of the bolt 1, a locking gasket 2 and an anti-theft nut component 3 are arranged on the screw end of the bolt 1, and an external screwing cap 3-2 is screwed by a tool, so that an internal nut 3-1 is firmly locked; the set screw 3-3 is then removed, at which point the outer nut 3-2 and the inner nut 3-1 no longer transmit axial rotational forces, and the removal of the fastener is no longer possible by counter-rotating the outer nut 3-2.
According to the anti-theft self-locking integrated combined bolt fastener, the anti-loosening gasket is utilized to prevent the fastener from loosening after locking, meanwhile, the ingenious anti-theft nut design is utilized, the outer screwing cap is separated from the inner nut by removing the connecting bolt after locking, the inner nut cannot be driven to rotate by rotating the outer screwing cap, meanwhile, the connecting hole matched with the connecting bolt on the inner nut is blocked by the retaining ring, so that the connecting bolt cannot be reinstalled, the anti-theft and self-locking functions of the bolt fastener are realized, and the anti-theft self-locking integrated bolt fastener has the advantages of being simple and ingenious in structure, simple and convenient to operate and the like.
The invention and its embodiments have been described above schematically, without limitation, and the actual construction is not limited to this, as it is shown in the drawings, which are only one of the embodiments of the invention. Therefore, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical scheme are not creatively devised without departing from the gist of the present invention, and all the structural manners and the embodiments belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides an anti-theft self-locking integral type combination bolt fastener, includes bolt (1), locking gasket (2) and theftproof nut subassembly (3), locking gasket (2) cover establish on the screw rod of bolt (1), theftproof nut subassembly (3) and the screw rod screw thread fit of bolt (1), its characterized in that: a rotation stopping structure is arranged between the anti-loose gasket (2) and the screw rod of the bolt (1); the anti-theft nut assembly (3) comprises an inner nut (3-1), an outer screwing cap (3-2), a retainer ring (3-4), a retainer ring spring (3-5) and a connecting bolt, wherein the inner nut (3-1) is provided with an inner thread matched with a screw rod of the bolt (1), the outer screwing cap (3-2) is sleeved on the outer side of the inner nut (3-1), the outer screwing cap (3-2) can axially and freely rotate relative to the inner nut (3-1), and the outer screwing cap (3-2) is provided with a screwing structure matched with a tool; the connecting bolt is laterally and detachably arranged between the inner nut (3-1) and the outer screwing cap (3-2) and is used for realizing torque transmission between the outer screwing cap (3-2) and the inner nut (3-1), the check ring (3-4) is arranged on the inner side of the outer screwing cap (3-2) and sleeved on one side of the inner nut (3-1), and the check ring spring (3-5) is arranged between the check ring (3-4) and the outer screwing cap (3-2); after the connecting bolt is disassembled, the retainer ring (3-4) can axially move relative to the inner nut (3-1) under the action of the retainer ring spring (3-5) so as to block a connecting hole on the inner nut (3-1) matched with the connecting bolt.
2. The antitheft self-locking integrated combination bolt fastener of claim 1, wherein: the anti-loosening structure between the anti-loosening gasket (2) and the screw of the bolt (1) comprises a slot (1-1) arranged on the screw of the bolt (1) and an inserting plate (2-1) arranged on the anti-loosening gasket (2), wherein the anti-loosening gasket (2) is axially sleeved on the screw of the bolt (1), and the inserting plate (2-1) is axially inserted in the slot (1-1) of the screw.
3. An anti-theft self-locking integrated combination bolt fastener according to claim 1 or 2, characterized in that: the connecting bolt adopts a locking screw (3-3), a lateral threaded hole (3-1 a) in threaded connection with the locking screw (3-3) is formed in the side face of the inner nut (3-1), a lateral through hole (3-2 a) corresponding to the lateral threaded hole (3-1 a) is formed in the side face of the outer screwing cap (3-2), and the locking screw (3-3) penetrates through the lateral through hole (3-2 a) and is screwed into the lateral threaded hole (3-1 a) of the inner nut (3-1).
4. A theft-proof self-locking integrated combination bolt fastener as defined in claim 3, wherein: at least two locking screws (3-3) are arranged on the circumference of the inner nut (3-1).
5. The antitheft self-locking integrated combination bolt fastener of claim 1, wherein: the front end of the inner nut (3-1) is provided with a limit step (3-1 b), the front end of the outer screwing cap (3-2) is provided with an inner flanging (3-2 b) which is clamped with the limit step (3-1 b), and the front end face of the inner nut (3-1) can extend out of the inner flanging (3-2 b) of the outer screwing cap (3-2) to be propped against the anti-loose gasket (2).
6. The antitheft self-locking integrated combination bolt fastener of claim 1, wherein: the screwing structure of the external screwing cap (3-2) is an external hexagonal structure.
7. The antitheft self-locking integrated combination bolt fastener of claim 1, wherein: one end of the screw rod of the bolt (1) is provided with an outer hexagonal or an inner hexagonal cap head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111551412.0A CN114165510B (en) | 2021-12-17 | 2021-12-17 | Antitheft self-locking integrated combined bolt fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111551412.0A CN114165510B (en) | 2021-12-17 | 2021-12-17 | Antitheft self-locking integrated combined bolt fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114165510A CN114165510A (en) | 2022-03-11 |
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| CN202111551412.0A Active CN114165510B (en) | 2021-12-17 | 2021-12-17 | Antitheft self-locking integrated combined bolt fastener |
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| CN114635909B (en) * | 2022-04-11 | 2024-04-12 | 海盐汇联通用配件有限公司 | Antitheft nut |
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| CN111173825A (en) * | 2020-02-08 | 2020-05-19 | 新昌县诚隆轴承厂 | Outer hexagonal screw rod device of aviation anti-disassembly |
| CN210637360U (en) * | 2019-10-31 | 2020-05-29 | 颜昌景 | Can realize from anti vibration check bolt subassembly of locking-type |
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| WO2004061316A1 (en) * | 2002-12-26 | 2004-07-22 | Nishioka Byoura Co., Ltd. | Tightened part disconnection preventing device |
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| GB1492206A (en) * | 1974-11-15 | 1977-11-16 | Sibe | Screw devices for carburettor adjustment |
| GB2082711A (en) * | 1980-08-02 | 1982-03-10 | Rolls Royce Motors Ltd | Tamper resistant arrangement |
| US6146070A (en) * | 1998-03-09 | 2000-11-14 | Mts Co. Ltd. | Bolt/nut unfastening preventing structure |
| JPH11336736A (en) * | 1998-05-26 | 1999-12-07 | Shouwa Ec:Kk | Tightening nut locking device |
| JP2000087944A (en) * | 1998-09-10 | 2000-03-28 | Nagaki Seiki:Kk | Protection device for fastening part |
| JP2002039146A (en) * | 2000-07-19 | 2002-02-06 | Nishioka Byora Kk | Bolt guard |
| CN2473375Y (en) * | 2001-03-16 | 2002-01-23 | 刘志平 | Anti-theft self locking bolt, nut member capable of regulating article and non-dismantling |
| CN2620126Y (en) * | 2003-04-03 | 2004-06-09 | 赵保现 | Anti-loosening anti-theft nut |
| WO2006041282A1 (en) * | 2004-10-15 | 2006-04-20 | Notermans Ernest Gerardus Hube | Connecting element comprising an inner sleeve and an outer sleeve interconnected to the inner |
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| CN103874907A (en) * | 2011-11-07 | 2014-06-18 | Delta株式会社 | Sealing device for meter cover or coupling bolt of terminal box |
| JP3175390U (en) * | 2012-02-21 | 2012-05-10 | 協永産業株式会社 | Lock nut |
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| CN210637360U (en) * | 2019-10-31 | 2020-05-29 | 颜昌景 | Can realize from anti vibration check bolt subassembly of locking-type |
| CN111173825A (en) * | 2020-02-08 | 2020-05-19 | 新昌县诚隆轴承厂 | Outer hexagonal screw rod device of aviation anti-disassembly |
Also Published As
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| CN114165510A (en) | 2022-03-11 |
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