CN214465505U - Anti-theft nut, anti-theft fastener and mounting fixture - Google Patents
Anti-theft nut, anti-theft fastener and mounting fixture Download PDFInfo
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- CN214465505U CN214465505U CN202120595846.XU CN202120595846U CN214465505U CN 214465505 U CN214465505 U CN 214465505U CN 202120595846 U CN202120595846 U CN 202120595846U CN 214465505 U CN214465505 U CN 214465505U
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Abstract
The utility model discloses a theftproof nut, theftproof fastener and sectional fixture, this theftproof nut include interior nut, outer nut, interior nut cover establish in outer nut and be provided with in the interior nut and be used for the screw rod screw hole of being connected with the bolt cooperation. The utility model is used for need consider the equipment fastening installation of safety and theftproof function in the open air, the theftproof performance is good, and ordinary instrument can't be dismantled under the condition that does not have special fixture, and more traditional theftproof screw reliability is high.
Description
Technical Field
The utility model belongs to the technical field of the antitheft nut, concretely relates to antitheft nut, theftproof fastener and sectional fixture.
Background
The anti-theft nut is the latest product with excellent anti-theft performance in the twenty-first century, and is mainly used for preventing looseness and theft of a connection fastening part of a mechanical component; the property and personal safety loss of public facilities can reach more than one hundred million yuan each year because of the looseness or the artificial theft and damage of the component connection parts in the mechanical department in China, and great influence is brought to the healthy operation of national economy.
The existing antitheft nut is mainly characterized in that a nut with a special structure is arranged at one end of the nut, and the nut is assembled and disassembled by butting an abnormal-shaped structure between the nut and a key, so that the nut is easy to be assembled and disassembled by a common tool, and the nut is frequently used or the abnormal-shaped structure is damaged by too much force, so that the nut and the key cannot be disassembled by slipping.
When the nut is rotated clockwise, the ball rolls along the arc-shaped blind groove, the plastic inner bushing of the nut automatically falls off, and when the nut is unscrewed anticlockwise, the radial size of the blind groove is gradually reduced, the ball is clamped in the thread, and the nut cannot be unscrewed, so that the anti-theft effect is achieved. The anti-theft nut is generally disposable, and no special tool is used for disassembling the anti-theft nut, so that certain difficulty is caused in maintenance of equipment.
SUMMERY OF THE UTILITY MODEL
In view of this, the main object of the present invention is to provide an anti-theft nut, an anti-theft fastener and a mounting fixture.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an embodiment of the utility model provides a theftproof nut, this theftproof nut include interior nut, outer nut, interior nut cover is established in outer nut and be provided with in the interior nut and be used for the screw rod screw hole of being connected with the bolt fit.
In the above scheme, the inner nut is a cone, the outer nut is cylindrical, and the inner circumference of the outer nut is provided with a conical surface matched with the inner nut.
In the above scheme, the outside downside of outer nut is provided with and is used for with mounting fixture complex a plurality of draw-in groove.
The embodiment of the utility model provides a still provide an anti-theft fastener, its characterized in that, this anti-theft fastener include according to any one in above-mentioned scheme theftproof nut, bolt, the bolt is connected with the cooperation of theftproof nut.
The embodiment of the utility model provides a still provide an installation fixture, this installation fixture includes fixed disk, centre gripping subassembly, fastening component, set up two at least centre gripping subassemblies on the fixed disk and two at least centre gripping subassemblies are used for the fixed antitheft nut of centre gripping, fastening component runs through the fixed disk center and is connected with the antitheft nut cooperation and be used for driving the antitheft nut clockwise or anticlockwise rotation.
In the above-mentioned scheme, the centre gripping subassembly includes the clamp, the upper end of clamp slides and sets up at the fixed disk at the bar inslot that sets up along radial direction, the lower extreme of clamp is provided with the lug that matches with external nut's draw-in groove.
In the above scheme, the fastening assembly comprises a fastening bolt and a sleeve, the fastening bolt penetrates through a threaded hole in the center of the fixed disc, the lower end of the fastening bolt is connected with the upper half part of the sleeve in a matched mode, the lower bottom surface of the sleeve is provided with a friction tooth surface, and the lower bottom surface of the sleeve abuts against the end surface of the inner nut of the anti-theft nut.
In the above scheme, the screw thread hole at the center of the fixed disk is a positive screw, the mounting fixture is used for screwing the anti-theft nut, the screw thread hole at the center of the fixed disk is a reverse screw, and the mounting fixture is used for dismounting the anti-theft nut.
In the scheme, the sleeve is a cylinder, and the upper half part of the sleeve is provided with a fixing pin hole which is used for being matched and connected with a sleeve pin at the lower end of the fastening bolt; the lower half portion of the sleeve is provided with a screw rod preformed hole for the rod body portion extends into the screw rod preformed hole after the bolt is screwed down.
In the above scheme, at least one locking mechanism is arranged on the circumference of the fixed disk, and the locking mechanism is used for locking the fixed disk; the locking mechanism comprises a fixing hole and a locking push rod, the fixing hole is formed in the circumference of the fixing disc, and one end of the locking push rod is inserted into the fixing hole.
Compared with the prior art, the utility model is used for need consider the equipment fastening installation of safety and theftproof function in the open air, the theftproof performance is good, and ordinary instrument can't be dismantled under the condition that does not have special fixture, and more traditional theftproof screw reliability is high.
Drawings
The accompanying drawings, which are described herein, serve to disclose a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are used to explain the invention and not to constitute an undue limitation on the invention. In the drawings:
fig. 1 is a schematic structural view of an anti-theft nut according to an embodiment of the present invention;
fig. 2 is an exploded view of an anti-theft nut according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an anti-theft fastener according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mounting fixture according to an embodiment of the present invention;
fig. 5 is a schematic view of an angle of a sleeve in a mounting fixture according to an embodiment of the present invention;
fig. 6 is a schematic structural view of another angle of the sleeve in the installation fixture according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides an anti-theft nut, as shown in fig. 1, 2, this anti-theft nut 1 includes interior nut 11, outer nut 12, interior nut 11 cover is established in outer nut 12 and be provided with in the interior nut 11 and be used for cooperating the screw rod screw hole 111 of being connected with bolt 2.
The inner nut 11 is a cone, the outer nut 12 is cylindrical, and the inner circumference of the outer nut is provided with a conical surface matched with the inner nut 11.
The outer lower side of the outer nut 12 is provided with a plurality of clamping grooves 121 used for being matched with a mounting fixture.
After the anti-theft nut 1 is connected with the bolt 2, because the outer circumference of the outer nut 12 is a smooth curved surface, and the inner nut 11 is completely separated from the outer nut 12, if no clamp is installed, the anti-theft nut 1 cannot be clamped and fixed by a common tool, and thus the anti-theft nut 1 cannot be screwed up or unscrewed from the bolt 2.
The embodiment of the utility model provides a still provide an anti-theft fastener, as shown in fig. 3, this anti-theft fastener includes antitheft nut 1, bolt 2 is connected with the cooperation of antitheft nut 1.
As shown in fig. 1 and 2, the antitheft nut 1 includes an inner nut 11 and an outer nut 12, the inner nut 11 is sleeved in the outer nut 12, and a screw hole 111 for being in fit connection with the bolt 2 is provided in the inner nut 11.
The inner nut 11 is a cone, the outer nut 12 is cylindrical, and the inner circumference of the outer nut is provided with a conical surface matched with the inner nut 11.
The outer lower side of the outer nut 12 is provided with a plurality of clamping grooves 121 used for being matched with a mounting fixture.
After the anti-theft nut 1 is connected with the bolt 2, because the outer circumference of the outer nut 12 is a smooth curved surface, and the inner nut 11 is completely separated from the outer nut 12, if no clamp is installed, the anti-theft nut 1 cannot be clamped and fixed by a common tool, and thus the anti-theft nut 1 cannot be screwed up or unscrewed from the bolt 2.
The embodiment of the utility model provides a still provide an installation fixture, as shown in fig. 4, this installation fixture includes fixed disk 3, centre gripping subassembly 4, fastening component 5, set up two at least centre gripping subassemblies 4 on the fixed disk 3 and two at least centre gripping subassemblies 4 are used for the fixed antitheft nut of centre gripping 1, fastening component 5 runs through fixed disk 3 center and is connected with the cooperation of antitheft nut 1 and is used for driving antitheft nut 1 clockwise or anticlockwise rotation.
The clamping assembly 4 comprises a clamp 41, the upper end of the clamp 41 is slidably arranged in a strip-shaped groove 31 formed in the fixed disc 3 along the radial direction, and the lower end of the clamp 41 is provided with a projection 411 matched with a clamping groove 121 of the outer nut 12.
In some embodiments, there are three clamping assemblies 4, and thus there are three corresponding slots 121 of the outer nut 12.
The fastening assembly 5 comprises a fastening bolt 51 and a sleeve 52, wherein the fastening bolt 51 penetrates through a threaded hole in the center of the fixed plate 3, the lower end of the fastening bolt is in fit connection with the upper half part of the sleeve 52, and the lower bottom surface of the sleeve 52 abuts against the end surface of the inner nut 11 of the antitheft nut 1.
The screw thread hole at the center of the fixed disk 3 is a positive screw, the mounting fixture is used for screwing the antitheft nut 1, the screw thread hole at the center of the fixed disk 3 is a reverse screw, and the mounting fixture is used for dismounting the antitheft nut 1.
As shown in fig. 5 and 6, the sleeve 52 is a cylinder, and the upper half portion of the sleeve 52 is provided with a fixing pin hole 521 for being matched and connected with a sleeve pin 511 at the lower end of the fastening bolt 51; the lower half of the sleeve 52 is provided with a screw prepared hole 522 for the shaft portion to extend into the screw prepared hole 522 after the bolt 2 is tightened.
In the process of screwing the bolt 2, the part of the bolt 2 after penetrating the inner nut 11 is positioned in the bolt preformed hole 522 of the lower half part of the sleeve 52, and the screwing process of the bolt 2 is not influenced.
The lower bottom surface of the sleeve 52 is provided with a friction tooth surface 523 for increasing the friction force between the lower bottom surface of the sleeve 52 and the end surface of the inner nut 11.
At least one locking mechanism 6 is arranged on the circumference of the fixed disc 3, and the locking mechanism 6 is used for locking the fixed disc 3; the locking mechanism 6 comprises a fixing hole 61 and a locking push rod 62, the fixing hole 61 is arranged on the circumference of the fixed disc 3, and one end of the locking push rod 62 is inserted into the fixing hole 61.
The fixing disc 3 can be fixedly locked by holding the locking push rod 62 by an operator, and the fixing disc 3 is prevented from rotating and moving up and down when the fastening bolt 51 rotates.
The utility model discloses a working process:
when screwing down: by using the mounting fixture with the threaded hole in the center of the fixed disk 3 as the positive thread, all the hoops 41 are adjusted in the position of the strip-shaped groove 31 according to the size of the outer nut 12 until the protrusions 411 of the hoops 41 are positioned in the clamping grooves 121 of the outer nut 12, and at this time, the operator holds the locking push rod 62 to move downwards along the hoops 41, so that the lower end surface of the sleeve 52 is tightly abutted to the inner nut 11, the fixed disk 3 is kept stable, and the fixed disk 3 is locked.
Then, the fastening bolt 51 is continuously screwed clockwise by a tool such as a wrench to continuously drive the inner nut 11 to rotate clockwise, so that the inner nut 11 and the bolt 2 are gradually connected until the connection and the fixation are complete, and meanwhile, in the process of screwing the fastening bolt 51 clockwise, the upper end of the hoop 41 and the strip-shaped groove 31 of the fixed disc 3 are gradually close to and tightly connected;
finally, the whole mounting fixture can be removed by slightly rotating the fastening bolt 51 counterclockwise so that there is a gap between the protrusion 411 of the yoke 41 and the slot 121.
When the disassembly is carried out: by using the mounting fixture with the threaded hole in the center of the fixed disk 3 as the reverse thread, all the hoops 41 are adjusted in the position of the strip-shaped groove 31 according to the size of the outer nut 12 until the protrusions 411 of the hoops 41 are positioned in the clamping grooves 121 of the outer nut 12, and at this time, the operator holds the locking push rod 62 to move downwards along the hoops 41, so that the lower end surface of the sleeve 52 is tightly abutted to the inner nut 11, the fixed disk 3 is kept stable, and the fixed disk 3 is locked.
Then, the fastening bolt 51 is continuously screwed along the counterclockwise direction by a tool such as a wrench and the like to continuously drive the inner nut 11 to rotate along the counterclockwise direction, so that the inner nut 11 and the bolt 2 are gradually separated until the inner nut and the bolt are completely separated, and meanwhile, in the process of screwing the fastening bolt 51 along the counterclockwise direction, the upper end of the hoop 41 and the strip-shaped groove 31 of the fixed disk 3 are gradually close to and tightly connected;
finally, the whole mounting fixture can be removed by slightly rotating the fastening bolt 51 clockwise so that there is a gap between the protrusion 411 of the yoke 41 and the slot 121.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplified description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. The anti-theft nut is characterized by comprising an inner nut and an outer nut, wherein the inner nut is sleeved in the outer nut, and a screw hole used for being connected with a bolt in a matched mode is formed in the inner nut.
2. The antitheft nut of claim 1, wherein said inner nut is a cone, said outer nut is cylindrical and has an inner circumference provided with a tapered surface matching the inner nut.
3. Antitheft nut according to claim 1 or 2, characterized in that the external lower side of said external nut is provided with a plurality of snap grooves for cooperating with a mounting clamp.
4. An antitheft fastener comprising an antitheft nut, bolt according to any of claims 1 to 3, said bolt being in mating connection with the antitheft nut.
5. The mounting fixture is characterized by comprising a fixed disc, clamping components and a fastening component, wherein at least two clamping components are arranged on the fixed disc and are used for clamping and fixing an anti-theft nut, and the fastening component penetrates through the center of the fixed disc and is connected with the anti-theft nut in a matched mode and used for driving the anti-theft nut to rotate clockwise or anticlockwise.
6. The installation jig of claim 5, wherein the clamping assembly comprises a clamping band, the upper end of the clamping band is slidably arranged in a strip-shaped groove arranged in the radial direction of the fixed disc, and the lower end of the clamping band is provided with a projection matched with the clamping groove of the outer nut.
7. The installation jig of claim 5 or 6, wherein the fastening assembly comprises a fastening bolt and a sleeve, the fastening bolt penetrates through a threaded hole in the center of the fixing plate, the lower end of the fastening bolt is in fit connection with the upper half part of the sleeve, the lower bottom surface of the sleeve is provided with a friction tooth surface, and the lower bottom surface of the sleeve abuts against the inner nut end surface of the antitheft nut.
8. The installation fixture of claim 7, wherein the threaded hole in the center of the fixed disk is a positive thread, the installation fixture is used for screwing the anti-theft nut, the threaded hole in the center of the fixed disk is a negative thread, and the installation fixture is used for detaching the anti-theft nut.
9. The mounting fixture of claim 8, wherein the sleeve is a cylinder, and the upper half of the sleeve is provided with a fixing pin hole for being in fit connection with a sleeve pin at the lower end of the fastening bolt; the lower half portion of the sleeve is provided with a screw rod preformed hole for the rod body portion extends into the screw rod preformed hole after the bolt is screwed down.
10. The mounting clip of claim 9, wherein the retention disk is circumferentially provided with at least one locking mechanism for locking the retention disk; the locking mechanism comprises a fixing hole and a locking push rod, the fixing hole is formed in the circumference of the fixing disc, and one end of the locking push rod is inserted into the fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120595846.XU CN214465505U (en) | 2021-03-24 | 2021-03-24 | Anti-theft nut, anti-theft fastener and mounting fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120595846.XU CN214465505U (en) | 2021-03-24 | 2021-03-24 | Anti-theft nut, anti-theft fastener and mounting fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214465505U true CN214465505U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120595846.XU Active CN214465505U (en) | 2021-03-24 | 2021-03-24 | Anti-theft nut, anti-theft fastener and mounting fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214465505U (en) |
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2021
- 2021-03-24 CN CN202120595846.XU patent/CN214465505U/en active Active
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