CN212389643U - Anti-theft combined nut and anti-theft combined bolt - Google Patents
Anti-theft combined nut and anti-theft combined bolt Download PDFInfo
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- CN212389643U CN212389643U CN202021850423.XU CN202021850423U CN212389643U CN 212389643 U CN212389643 U CN 212389643U CN 202021850423 U CN202021850423 U CN 202021850423U CN 212389643 U CN212389643 U CN 212389643U
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Abstract
The utility model discloses an anti-theft combined nut, which comprises a nut and a sleeve, wherein the nut is in a shape of a truncated cone or a circular arc bowl, and the outer side surface of the nut is provided with a groove or a bulge; the sleeve is sleeved on the nut, the shape of the inner hole of the sleeve is matched with the shape of the nut, and the side wall of the inner hole of the sleeve is provided with a bulge or a groove corresponding to the groove or the bulge on the nut. The utility model also discloses an anti-theft combination bolt, which comprises a bolt and a sleeve, wherein the head of the bolt is in a shape of a truncated cone or a circular arc bowl, and a groove or a bulge is arranged on the outer side surface of the head of the bolt; the sleeve is sleeved on the head of the bolt, the shape of the inner hole of the sleeve is matched with the shape of the head of the bolt, and the side wall of the inner hole of the sleeve is provided with a bulge or a groove corresponding to the groove or the bulge on the head of the bolt. The utility model discloses a theftproof combination nut and theftproof combination bolt simple structure, theftproof performance are good, with low costs, are fit for popularizing and applying.
Description
Technical Field
The utility model relates to a fastener technical field, especially a theftproof combination nut and theftproof combination bolt.
Background
Ordinary nut, bolt are as common fastener in the life, involve each field. Since a general nut bolt can be unscrewed using a conventional tool, it is very common that infrastructure or equipment parts are stolen by disassembling the nut bolt. In order to prevent theft, the existing anti-theft nuts and bolts usually adopt a structure which cannot be loosened after being welded or screwed, although the anti-theft nuts and bolts can prevent theft, the replacement or the maintenance of equipment parts is inconvenient, the practicability is poor, and some special anti-theft bolts and nuts are adopted, but the anti-theft bolts and nuts can be screwed only by being provided with special wrenches, and the anti-theft nuts and bolts have complex structures and high production cost, so that the further popularization is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a theftproof combination nut and theftproof combination bolt, it is with low costs, the theftproof nature is good, possesses the practicality.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
an anti-theft combined nut comprises a nut and a sleeve, wherein the nut is in a cone frustum shape or an arc bowl shape, and a groove or a bulge is arranged on the outer side surface of the nut; the sleeve is sleeved on the nut, the shape of the inner hole of the sleeve is matched with the shape of the nut, and the side wall of the inner hole of the sleeve is provided with a bulge or a groove corresponding to the groove or the bulge on the nut.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a theftproof combination nut, nut must just can twist under telescopic cooperation and move, screws up the back sleeve and take off, and the sleeve can adopt ordinary spanner just can twist to move, has reduced the expense that is equipped with special spanner, and simple structure, theftproof performance are good, are fit for popularizing and applying.
Furthermore, 3 grooves or bulges are uniformly distributed on the outer side surface of the nut.
Further, the length direction of the groove or the protrusion is consistent with the inclined height direction of the nut, and the length of the groove or the protrusion is smaller than the inclined height dimension of the nut.
Further, the periphery of the sleeve is a hexagonal surface.
Further, a handle is connected to the sleeve.
An anti-theft combination bolt comprises a bolt and a sleeve, wherein the head of the bolt is in a shape of a truncated cone or an arc bowl, and a groove or a bulge is arranged on the outer side surface of the head of the bolt; the sleeve is sleeved on the head of the bolt, the shape of the inner hole of the sleeve is matched with the shape of the head of the bolt, and the side wall of the inner hole of the sleeve is provided with a bulge or a groove corresponding to the groove or the bulge on the head of the bolt.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a theftproof assembling bolt, bolt must just can twist under telescopic cooperation and move, screws up the back sleeve and take off, and the sleeve can adopt ordinary spanner just can twist to move, has reduced the expense that is equipped with special spanner, and simple structure, theftproof performance are good, are fit for popularizing and applying.
Further, 3 grooves or bulges are uniformly distributed on the outer side surface of the head of the bolt.
Further, the length direction of the groove or the protrusion is consistent with the inclined height direction of the bolt head, and the length of the groove or the protrusion is smaller than the inclined height dimension of the bolt head.
Further, the periphery of the sleeve is a hexagonal surface.
Further, a handle is connected to the sleeve.
Drawings
Fig. 1 is a schematic structural view of the nut and the sleeve of embodiment 1 of the present invention before assembly.
Fig. 2 is a schematic structural view of the nut and the sleeve in embodiment 1 of the present invention after assembly.
Fig. 3 is a schematic structural view of the nut and the sleeve of embodiment 2 of the present invention before assembly.
Fig. 4 is a schematic structural view of the nut in embodiment 3 of the present invention.
Fig. 5 is a schematic structural view of the nut and the sleeve of embodiment 4 of the present invention before assembly.
Fig. 6 is a schematic structural view of a nut in embodiment 5 of the present invention.
Fig. 7 is a schematic structural view of the nut and the sleeve according to embodiment 6 of the present invention after assembly.
Fig. 8 is a schematic structural view of the bolt and the sleeve of embodiment 7 of the present invention before assembly.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The anti-theft combination nut is described in detail below with reference to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 1 and 2, the present embodiment provides an anti-theft combination nut, which includes a nut 1 and a sleeve 2. Nut 1 is the circular cone frustum shape, evenly is provided with 3 recesses 3a on the 1 lateral surface of nut, and 2 covers on nut 1 of sleeve, 2 hole shapes of sleeve and 1 appearance shape phase-matches of nut, are equipped with 3 archs 3b that correspond with 3 recesses 3a on the 1 nut on the 2 hole lateral walls of sleeve. The length direction of the groove 3a is consistent with the inclined height direction of the nut 1, and the length of the groove 3a is smaller than the inclined height dimension of the nut 1. The periphery of the sleeve 2 is a hexagonal surface.
Example 2
Referring to fig. 3, the rest is the same as embodiment 1, except that 3 protrusions 4b are uniformly disposed on the outer side surface of the nut 1 in this embodiment, and 3 grooves 4a corresponding to the 3 protrusions 4b on the nut 1 are disposed on the side wall of the inner hole of the sleeve 2.
Example 3
Referring to fig. 4, the rest is the same as embodiment 1, except that the length of the groove 5a in this embodiment is equal to the height of the nut 1, i.e. the groove 5a extends to the top and bottom of the outer side of the nut 1.
Example 4
Referring to fig. 5, the rest is the same as embodiment 3, except that 4 grooves 5a are uniformly formed on the outer side surface of the nut 1 in this embodiment, 4 protrusions 5b corresponding to the 4 grooves 5a on the nut 1 are formed on the side wall of the inner hole of the sleeve 2, and the height of the sleeve 2 is higher than that of the nut 1.
Example 5
Referring to fig. 6, the rest is the same as embodiment 1, except that in this embodiment, the nut 1 is in the shape of an arc bowl, the sleeve 2 is sleeved on the nut 1, and the shape of the inner hole of the sleeve 2 is matched with the shape of the nut 1.
Example 6
Referring to fig. 7, the rest is the same as embodiment 1, except that a handle 6 is connected to the sleeve 2 in this embodiment, and the sleeve can be screwed by directly holding the handle with hands.
The changes that may be made with respect to the above-described embodiments are described and further explained as follows:
(1) in the above embodiments, the outer side surface of the nut 1 is provided with 3 or 4 grooves or protrusions, and actually, 1, 2 or more than 4 grooves or protrusions are also possible as long as the grooves or protrusions are actually arranged.
(2) In the above embodiment, the outer side surface of the nut 1 may also be provided with a groove and a protrusion in a matching manner, and the corresponding sleeve 2 is also provided with a protrusion in a matching manner with a groove. That is to say, the outer side surface of the nut 1 has both a groove and a protrusion, and at this time, the corresponding inner hole side wall of the sleeve 2 has both a protrusion and a groove.
(3) In the above embodiment, the height of the sleeve 2 is higher than or equal to the height of the nut 1, and in fact, it is also feasible that the height of the sleeve 2 is smaller than the height of the nut 1, as long as the protrusions and the grooves on the side wall of the inner hole of the sleeve 2 and the grooves and the protrusions on the outer side surface of the nut 1 can be mutually clamped, and the nut 1 can be detached by screwing the sleeve 2.
(4) In the above embodiments, the outer periphery of the sleeve 2 is a hexagonal surface, or a four-corner surface, a five-corner surface, a seven-corner surface, an octagonal surface, or the like, and can be screwed by a common wrench or sleeved on an electric screwing tool.
To sum up, the embodiment of the utility model provides a theftproof combination nut screws up 1 operation of nut and finishes, unloads sleeve 2 back, and nut 1 only can twist under sleeve 2's the commentaries on classics and move, can't unscrew nut 1 with general instrument, therefore the theftproof performance is good, and sleeve 2 can adopt ordinary spanner moreover, has saved special spanner's cost.
The anti-theft combination bolt is described in detail below with reference to the accompanying drawings and specific embodiments.
Example 7
Referring to fig. 8, the present embodiment provides an anti-theft combination bolt, which includes a bolt 7 and a sleeve 8, wherein the head of the bolt 7 is in a truncated cone shape or an arc bowl shape, and 3 grooves 7a are uniformly formed on the outer side surface of the head of the bolt 7; the sleeve 8 is sleeved on the head of the bolt 7, the shape of the inner hole of the sleeve 8 is matched with the shape of the head of the bolt 7, and 3 bulges 7b corresponding to 3 grooves 7a on the head of the bolt 7 are arranged on the side wall of the inner hole of the sleeve 8. The length direction of the groove 7a is consistent with the inclined height direction of the head of the bolt 7, and the length of the groove 7a is smaller than the inclined height dimension of the head of the bolt 7. The periphery of the sleeve 8 is a hexagonal surface.
The changes that may be made with respect to the above-described embodiments are described and further explained as follows:
(1) in the above embodiment, the outer side surface of the head of the bolt 7 is provided with 3 grooves, and actually, 1, 2 or more than 4 grooves are also possible as long as the grooves are actually arranged.
(2) In the above embodiment, the outer side surface of the head of the bolt 7 may also be provided with a protrusion or a groove and protrusion matching arrangement, and the corresponding sleeve 8 may also be provided with a groove or a protrusion and groove matching arrangement. The arrangement of the protrusion and the groove in a matched manner means that the outer side surface of the head of the bolt 7 is provided with the groove and the protrusion, and at the moment, the inner hole side wall of the corresponding sleeve 8 is provided with the protrusion and the groove. In addition, the length of the groove or the protrusion may be equal to the inclined height of the outer side surface of the head of the bolt 7.
(3) In the above embodiment, the height of the sleeve 8 may be the same as or different from the height of the head of the bolt 7, as long as it is ensured that the protrusion or the groove on the side wall of the inner hole of the sleeve 8 and the groove or the protrusion on the outer side surface of the head of the bolt 7 can be mutually clamped, and the bolt 7 can be detached by screwing the sleeve 8.
(4) In the above embodiments, the outer periphery of the sleeve 8 is a hexagonal surface, or a four-corner surface, a five-corner surface, a seven-corner surface, an octagonal surface, or the like, and can be screwed by a common wrench, a handle can be arranged on the sleeve 8, and the sleeve can also be sleeved on an electric screwing tool for use.
To sum up, the embodiment of the utility model provides a theftproof assembling bolt screws up 7 operations and finishes, unloads sleeve 8 back, and bolt 7 only can twist under sleeve 8's the commentaries on classics and move, can't unscrew bolt 7 with general instrument, and consequently the theftproof performance is good, and sleeve 8 can adopt ordinary spanner moreover, has saved special spanner's cost.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. An anti-theft combined nut comprises a nut and a sleeve, and is characterized in that the nut is in a shape of a truncated cone or an arc bowl, and a groove or a bulge is arranged on the outer side surface of the nut; the sleeve is sleeved on the nut, the shape of the inner hole of the sleeve is matched with the shape of the nut, and the side wall of the inner hole of the sleeve is provided with a bulge or a groove corresponding to the groove or the bulge on the nut.
2. The antitheft combination nut of claim 1, wherein 3 grooves or protrusions are evenly distributed on the outer side surface of the nut.
3. The antitheft combination nut of claim 1, wherein the length direction of the groove or protrusion coincides with the direction of the nut's slant height, and the length of the groove or protrusion is smaller than the size of the nut's slant height.
4. The antitheft combination nut of claim 1, wherein the sleeve periphery is hexagonal.
5. The antitheft composite nut of claim 4 wherein a handle is attached to the sleeve.
6. An anti-theft combination bolt comprises a bolt and a sleeve, and is characterized in that the head of the bolt is in a shape of a truncated cone or an arc bowl, and a groove or a bulge is arranged on the outer side surface of the head of the bolt; the sleeve is sleeved on the head of the bolt, the shape of the inner hole of the sleeve is matched with the shape of the head of the bolt, and the side wall of the inner hole of the sleeve is provided with a bulge or a groove corresponding to the groove or the bulge on the head of the bolt.
7. The anti-theft combination bolt according to claim 6, characterized in that 3 grooves or protrusions are evenly distributed on the outer side surface of the head of the bolt.
8. The anti-theft combination bolt according to claim 6, wherein the length direction of the groove or the protrusion is the same as the slant height direction of the bolt head, and the length of the groove or the protrusion is smaller than the slant height dimension of the bolt head.
9. The antitheft combination bolt of claim 6, wherein the sleeve periphery is hexagonal.
10. The anti-theft compound bolt according to claim 9, wherein a handle is attached to the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021850423.XU CN212389643U (en) | 2020-08-31 | 2020-08-31 | Anti-theft combined nut and anti-theft combined bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021850423.XU CN212389643U (en) | 2020-08-31 | 2020-08-31 | Anti-theft combined nut and anti-theft combined bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212389643U true CN212389643U (en) | 2021-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021850423.XU Active CN212389643U (en) | 2020-08-31 | 2020-08-31 | Anti-theft combined nut and anti-theft combined bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212389643U (en) |
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2020
- 2020-08-31 CN CN202021850423.XU patent/CN212389643U/en active Active
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