CN210859515U - Anti-theft bolt - Google Patents
Anti-theft bolt Download PDFInfo
- Publication number
- CN210859515U CN210859515U CN201921096406.9U CN201921096406U CN210859515U CN 210859515 U CN210859515 U CN 210859515U CN 201921096406 U CN201921096406 U CN 201921096406U CN 210859515 U CN210859515 U CN 210859515U
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- groove
- theft
- ring
- wall
- nut
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- 210000000225 synapse Anatomy 0.000 claims description 24
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 208000031361 Hiccup Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model discloses an anti-theft bolt, which comprises a nut and a screw rod, wherein the nut is provided with a mounting groove, the center of the screw rod is provided with a force applying channel, the upper end of the force applying channel is provided with a separation blade, one side of the separation blade is hinged with the side wall of the force applying channel, the side wall of the upper end of the force applying channel is provided with a hidden groove, a torsional spring is arranged in the hidden groove, one end of the torsional spring is fixedly connected with the side wall of the hidden groove, the other end of the torsional spring is fixedly connected with the lower end of the separation blade, the outer wall of the nut is provided with an outer anti-theft ring, and the outer anti-theft ring is matched with the nut in a rotating way. The anti-theft function is realized.
Description
Technical Field
The utility model relates to a bolt technical field, in particular to theftproof bolt.
Background
At present, a plurality of municipal and shared facilities and equipment are often stolen, stolen and damaged, such as manhole covers, transformers, street lamp facilities, cables and the like. If effective anti-theft measures are not adopted or only simple locks are used for preventing theft during installation of the facilities and the equipment, the equipment and the facilities are easily damaged and stolen, and thus huge loss is brought to the country; the existing anti-theft bolt with higher safety has higher production cost and low input-output ratio, and is not suitable for being used in a large range, so the anti-theft effect of the existing anti-theft bolt is not perfect.
Chinese patent publication No. CN103573787A discloses an anti-theft bolt and a method for manufacturing the same, wherein one end of a screw is connected with a bolt head with an end surface in a circular arc shape or a conical shape, the bolt head is provided with an inverted cone groove facing the inside of the bolt head, the bottom of the inverted cone groove is provided with a limiting cone facing the outside of the bolt head, and the wall of the inverted cone groove is provided with a bayonet groove, so that when the anti-theft bolt is opened or screwed, the anti-theft bolt can be opened only by inserting a special tool corresponding to the bolt head into the inverted cone groove to rotate, thereby effectively preventing the anti-theft bolt from being illegally disassembled and playing a role of anti-theft; compared with the prior art, the invention has the advantages of simple structure, safety and reliability, ingenious design, small volume, firmness and durability, easy processing and production, low cost, effective theft prevention, reliable safety guarantee for outdoor equipment and special equipment and the like, and can be opened only by using a special tool when being opened or locked.
However, when the anti-theft bolt is used, the bolt can be taken out of the threaded hole by a common tool such as pliers, so that the anti-theft capability of the bolt is poor. In view of the above problems, a solution is proposed as follows.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an anti-theft bolt has and sheathes the outer anti-theft ring with nut normal running fit in the outside of nut, makes the advantage that the thief can't twist out the nut through ordinary instrument.
The above technical purpose of the present invention can be achieved by the following technical solutions:
an anti-theft bolt comprises a nut and a screw rod, and is characterized in that the screw rod is positioned at the lower end of the nut, the upper end of the screw rod is fixedly connected with the lower end face of the nut, a round mounting groove is arranged on the nut, a force applying channel is arranged at the center of the screw rod, the upper end of the force applying channel penetrates through the bottom wall of the mounting groove and is communicated with the mounting groove, a separation blade is arranged at the upper end of the force applying channel, one side of the separation blade is hinged with the side wall of the force applying channel, a hidden groove is arranged on the side wall of the upper end of the force applying channel, a torsion spring is arranged in the hidden groove, one end of the torsion spring is fixedly connected with the side wall of the hidden groove, the other end of the torsion spring is fixedly connected with the lower end of the separation blade, a rotary groove is arranged on the bottom surface of the mounting groove, the fixing piece is located the fixed slot, and with fixed slot normal running fit, the diameter of revolving groove is greater than the diameter that the power of exerting oneself was said, the upper end that the power of exerting oneself was said is located one side of terminal surface under the revolving groove, and communicates with each other with the revolving groove, be equipped with outer anti-theft ring on the outer wall of nut, the outer fringe of outer anti-theft ring is regular hexagon, the inner edge of outer anti-theft ring is circular, the inner edge cover of outer anti-theft ring is established on the outer wall of nut, and with nut normal running fit.
Adopt above-mentioned technical scheme, stretch into in the application of force way through the special instrument that corresponds, rotate special instrument, special instrument can drive screw rod and nut and rotate, make the screw rod can fix the threaded hole to the external world, when not having corresponding special instrument, if adopt the pliers will outer anti-theft ring tight, when rotating the pliers, outer anti-theft ring can rotate round the nut, make the unable mode rotation nut that passes through the clamping nut outside of thief, the stationary blade can rotate round the fixed slot, make the thief unable pole through having the edges and corners drive the nut and rotate, one side of torsional spring supports the separation blade in the upper end of application of force way, make the separation blade hide the application of force way, thereby make the thief be difficult for discovering the application of force way, thereby make screw rod and nut can realize the theftproof function.
Preferably, two positioning synapses I are symmetrically and fixedly arranged on the inner edge of the outer anti-theft ring, each positioning synapse I is hemispherical, a circle of positioning ring groove I is arranged on the outer wall of the nut, and one end, far away from the outer anti-theft ring, of each positioning synapse I is located in the corresponding positioning ring groove I and is in sliding fit with the corresponding positioning ring groove I.
By adopting the technical scheme, the first positioning synapse is positioned in the first positioning ring groove, the outer anti-theft ring is fixed on the nut, and when the outer anti-theft ring rotates, the first positioning synapse is driven to rotate, so that the first positioning synapse can rotate in the first positioning ring groove.
As preferred, be equipped with annular interior anti-theft ring of round on the inner wall of mounting groove, the outer fringe of interior anti-theft ring pastes mutually with the inner wall of mounting groove, and with mounting groove normal running fit, on the outer wall of interior anti-theft ring the symmetry be equipped with two location synapses two, be equipped with round location annular two on the inner wall of mounting groove, the one end that interior anti-theft ring was kept away from to location synapse two is located location annular two, and with two sliding fit of location annular.
By adopting the technical scheme, the second positioning synapse is clamped in the second positioning ring groove, and when the inner anti-theft ring rotates, the second positioning synapse can move along the second positioning ring groove, so that the nut cannot be driven to rotate when the inner anti-theft ring rotates, a thief is prevented from screwing the screw through the side wall of the clamping mounting groove, and the anti-theft effect of the screw is enhanced.
Preferably, the upper end of the outer anti-theft ring is higher than the height of the nut, an anti-theft piece is arranged in the outer anti-theft ring, one side of the anti-theft piece is hinged with the inner wall of the outer anti-theft ring, an L-shaped inserting rod is fixedly arranged on the lower end face of one side, away from the hinged part, of the outer anti-theft ring, a circle of annular slot is formed in the inner wall of the inner anti-theft ring, the inserting rod is in sliding fit with the annular slot, a passing groove is formed in one side of the annular slot, and the lower end of the passing groove is communicated with the side wall of the.
Adopt above-mentioned technical scheme, the one end of inserted bar passes in the groove of passing through moves the slot to with slot sliding fit, the theftproof piece can hide the mounting groove, make the mounting groove can be more secret, when outer theftproof ring rotates, outer theftproof ring can drive the theftproof piece and rotate, makes the inserted bar keep away from the position in the groove of passing through, thereby makes the theftproof piece be difficult for being opened, reinforcing theftproof effect.
Preferably, the bottom wall of the mounting groove is provided with a hiding sheet, and the hiding sheet is in sliding fit with the mounting groove.
Adopt above-mentioned technical scheme, hide the piece and place at mounting groove hiccup, and with the mounting groove cooperation, can hide the rotary tank to make the application of force say more hidden, reinforcing theftproof effect.
Preferably, the force applying channels are in the shape of a regular hexagon.
By adopting the technical scheme, the force applying channel of the regular hexagon can enable the force applying channel to be more easily stressed, so that the screw can be screwed more tightly by a special tool.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
fig. 2 is a sectional view of the embodiment.
Reference numerals: 1. a nut; 2. a screw; 3. mounting grooves; 4. applying force; 41. a baffle plate; 42. a torsion spring; 5. rotating the sheet; 51. a fixing sheet; 6. an outer anti-theft ring; 61. positioning a first synapse; 7. an inner anti-theft ring; 71. positioning a synapse II; 8. an anti-theft sheet; 81. inserting a rod; 82. a slot; 83. a passage groove; 9. and (4) hiding the sheet.
Detailed Description
The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.
As shown in fig. 1 and 2, the anti-theft bolt comprises a nut 1 and a screw rod 2, wherein the screw rod 2 is located at the lower end of the nut 1, and the upper end of the screw rod 2 is fixedly connected with the lower end face of the nut 1. Be equipped with circular shape mounting groove 3 on the nut 1, the center department of screw rod 2 is equipped with regular hexagon's application of force way 4, and the diapire of mounting groove 3 is run through to the upper end that application of force said 4, and communicates with each other with mounting groove 3.
As shown in fig. 1 and 2, a blocking piece 41 is disposed at the upper end of the force application channel 4, and one side of the blocking piece 41 is hinged with the side wall of the force application channel 4. The side wall of the upper end of the force application channel 4 is provided with a hidden groove, a torsion spring 42 is arranged in the hidden groove, one end of the torsion spring 42 is fixedly connected with the side wall of the hidden groove, and the other end of the torsion spring 42 is fixedly connected with the lower end of the baffle plate 41.
The corresponding special tool is provided with a regular hexagon long rod, one end of the long rod can push the baffle plate 41 downwards, the baffle plate 41 compresses the torsion spring 42, and then the long rod can enter the force application channel 4. The stock rotates, and the stock can drive regular hexagon's application of force way 4 and rotate to make screw rod 2 and nut 1 rotate, in screw rod 2 can shift over to external thread groove, and fixed with external thread groove, the realization is fixed to the bolt.
After the long rod is pulled out from the force applying channel 4, the stopper 41 returns to the upper end of the force applying channel 4 by the elastic force of the compressed torsion spring 42 to the stopper 41, and the upper end of the force applying channel 4 is hidden, so that the existence of the force applying channel 4 is not easy to be found by a thief.
As shown in fig. 2, a rotary groove is provided on the bottom surface of the mounting groove 3, an annular rotary plate 5 is provided in the rotary groove, a ring of fixing plates 51 is provided on the outer wall of the rotary plate 5, a fixing groove is provided on the side wall of the rotary groove, and the fixing plates 51 are located in the fixing groove and are rotatably engaged with the fixing groove. The diameter of the rotary groove is larger than that of the force applying channel 4, and the upper end of the force applying channel 4 is positioned on one side of the lower end surface of the rotary groove and is communicated with the rotary groove. Be equipped with hidden piece 9 on the diapire of mounting groove 3, hidden piece 9 and mounting groove 3 sliding fit.
The hidden piece 9 is positioned at the bottom of the mounting groove 3, and hides the rotary groove, so that the rotary groove is not easy to find, and the effect is enhanced. If the concealment flap 9 is removed, the flap 5 and the chute are exposed to the eye of the thief. A thief will insert into the rotor 5 using a tool corresponding to the inner wall of the rotor 5. When a thief rotates the tool, the tool will rotate the rotor 5. When the rotor 5 rotates, the fixing piece 51 is driven to rotate in the fixing groove, so that the rotor 5 cannot drive the rotor to rotate, and a thief cannot screw the nut 1, and cannot screw out the screw.
The force applying channel 4 and the rotary groove are not concentric circles, so that the exposure probability of the force applying channel 4 is smaller after the rotary groove is found, the stealing difficulty is increased, and the anti-theft effect is enhanced.
As shown in fig. 2, a ring of annular inner anti-theft ring 7 is arranged on the inner wall of the mounting groove 3, and the outer edge of the inner anti-theft ring 7 is attached to the inner wall of the mounting groove 3 and is in running fit with the mounting groove 3. Two positioning synapses II 71 are symmetrically arranged on the outer wall of the inner anti-theft ring 7, a circle of positioning ring groove II is arranged on the inner wall of the mounting groove 3, and one end, away from the inner anti-theft ring 7, of the positioning synapse II 71 is located in the positioning ring groove II and is in sliding fit with the positioning ring groove II.
When a thief wants to screw the nut 1 against the inner wall of the mounting groove 3. The tool used by the thief can abut against the inner wall of the inner anti-theft ring 7, when the tool is rotated, the tool can drive the inner anti-theft ring 7 to rotate, the inner anti-theft ring 7 can drive the two positioning synapse II 71 to move along the positioning ring groove II, the inner anti-theft ring 7 can not drive the mounting groove 3 to rotate, and therefore the nut 1 can not be screwed in a mode of abutting against the inner wall of the mounting groove 3.
As shown in fig. 1 and 2, an outer anti-theft ring 6 is disposed on an outer wall of the nut 1, an outer edge of the outer anti-theft ring 6 is regular hexagon, an inner edge of the outer anti-theft ring 6 is circular, and an inner edge of the outer anti-theft ring 6 is sleeved on the outer wall of the nut 1. Two positioning synapses I61 are symmetrically and fixedly arranged on the inner edge of the outer anti-theft ring 6, and the positioning synapses I61 are hemispherical. The outer wall of the screw cap 1 is provided with a circle of first positioning ring grooves, and one end of the first positioning synapse 61, which is far away from the outer anti-theft ring 6, is positioned in the first positioning ring grooves and is in sliding fit with the first positioning ring grooves.
When a thief wants to screw the nut 1 by clamping the outer side of the nut 1, a tool used by the thief clamps the outer wall of the outer anti-theft ring 6, and when the tool is rotated, the tool drives the outer anti-theft ring 6 to rotate. The outer anti-theft ring 6 drives the two anti-theft synapses to move along the positioning ring grooves, so that when the outer anti-theft ring 6 rotates, the nut 1 is not driven to rotate, and a thief cannot screw the nut 1 by clamping the outer side of the nut 1.
As shown in fig. 2, the upper end of the outer anti-theft ring 6 is higher than the nut 1, an anti-theft plate 8 is arranged in the outer anti-theft ring 6, and one side of the anti-theft plate 8 is hinged with the inner wall of the outer anti-theft ring 6. The lower end face of one side, far away from the hinged part, of the outer anti-theft ring 6 is fixedly provided with an L-shaped inserting rod 81, the inner wall of the inner anti-theft ring 7 is provided with a circle of annular slot 82, and the inserting rod 81 is in sliding fit with the annular slot 82. One side of the annular slot 82 is provided with a through groove 83, and the lower end of the through groove 83 is communicated with the side wall of the annular slot 82.
The insertion rod 81 can enter the insertion groove 82 along the passing groove 83, so that the opening of the installation groove 3 is hidden by the anti-theft sheet 8, a thief cannot easily find the installation groove 3, and the anti-theft effect is enhanced.
After one end of the inserting rod 81 enters the inserting groove 82, the outer anti-theft ring 6 is rotated, the outer anti-theft ring 6 drives the inserting rod 81 to move, the inserting rod 81 is moved away from the passing groove 83, the anti-theft sheet 8 is not easy to open, and the anti-theft effect is enhanced.
Claims (6)
1. The anti-theft bolt comprises a nut (1) and a screw rod (2), and is characterized in that the screw rod (2) is located at the lower end of the nut (1), the upper end of the screw rod (2) is fixedly connected with the lower end face of the nut (1), a round mounting groove (3) is arranged on the nut (1), a force applying channel (4) is arranged at the center of the screw rod (2), the upper end of the force applying channel (4) penetrates through the bottom wall of the mounting groove (3) and is communicated with the mounting groove (3), a blocking piece (41) is arranged at the upper end of the force applying channel (4), one side of the blocking piece (41) is hinged with the side wall of the force applying channel (4), a hidden groove is arranged on the side wall of the upper end of the force applying channel (4), a torsion spring (42) is arranged in the hidden groove, one end of the torsion spring (42) is fixedly connected with the side wall of the hidden groove, and the other end of the torsion spring (, the anti-theft nut is characterized in that a rotary groove is formed in the bottom surface of the mounting groove (3), an annular rotary piece (5) is arranged in the rotary groove, a circle of fixing piece (51) is arranged on the outer wall of the rotary piece (5), a fixing groove is formed in the side wall of the rotary groove, the fixing piece (51) is located in the fixing groove and is in running fit with the fixing groove, the diameter of the rotary groove is larger than that of the force application channel (4), the upper end of the force application channel (4) is located on one side of the lower end face of the rotary groove and is communicated with the rotary groove, an outer anti-theft ring (6) is arranged on the outer wall of the nut (1), the outer edge of the outer anti-theft ring (6) is in a regular hexagon shape, the inner edge of the outer anti-theft ring (6) is in a circular shape, and the inner edge of the outer.
2. The anti-theft bolt according to claim 1, characterized in that two positioning synapses one (61) are symmetrically and fixedly arranged on the inner edge of the outer anti-theft ring (6), the positioning synapses one (61) are hemispherical, a circle of positioning ring groove one is arranged on the outer wall of the nut (1), one end of the positioning synapse one (61) far away from the outer anti-theft ring (6) is positioned in the positioning ring groove one and is in sliding fit with the positioning ring groove one.
3. The anti-theft bolt according to claim 1, characterized in that a ring of annular inner anti-theft ring (7) is arranged on the inner wall of the mounting groove (3), the outer edge of the inner anti-theft ring (7) is attached to the inner wall of the mounting groove (3) and is in running fit with the mounting groove (3), two positioning synapse two (71) are symmetrically arranged on the outer wall of the inner anti-theft ring (7), a ring of positioning ring groove two is arranged on the inner wall of the mounting groove (3), and one end of the positioning synapse two (71) far away from the inner anti-theft ring (7) is located in the positioning ring groove two and is in sliding fit with the positioning ring groove two.
4. The anti-theft bolt according to claim 3, characterized in that the upper end of the outer anti-theft ring (6) is higher than the height of the nut (1), an anti-theft plate (8) is arranged in the outer anti-theft ring (6), one side of the anti-theft plate (8) is hinged with the inner wall of the outer anti-theft ring (6), an L-shaped inserting rod (81) is fixedly arranged on the lower end face of one side of the outer anti-theft ring (6) away from the hinged part, a circle of annular slot (82) is arranged on the inner wall of the inner anti-theft ring (7), the inserting rod (81) is in sliding fit with the annular slot (82), a through groove (83) is arranged on one side of the annular slot (82), and the lower end of the through groove (83) is communicated with the side wall of the annular slot (82).
5. An antitheft bolt according to claim 1 wherein the bottom wall of the mounting groove (3) is provided with a concealing sheet (9), said concealing sheet (9) being in sliding engagement with the mounting groove (3).
6. An antitheft bolt according to claim 1 wherein said force applying channel (4) is of regular hexagonal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921096406.9U CN210859515U (en) | 2019-07-13 | 2019-07-13 | Anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921096406.9U CN210859515U (en) | 2019-07-13 | 2019-07-13 | Anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210859515U true CN210859515U (en) | 2020-06-26 |
Family
ID=71304739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921096406.9U Withdrawn - After Issue CN210859515U (en) | 2019-07-13 | 2019-07-13 | Anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210859515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332212A (en) * | 2019-07-13 | 2019-10-15 | 海盐县机械有限公司 | A kind of anti-theft bolt |
-
2019
- 2019-07-13 CN CN201921096406.9U patent/CN210859515U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332212A (en) * | 2019-07-13 | 2019-10-15 | 海盐县机械有限公司 | A kind of anti-theft bolt |
| CN110332212B (en) * | 2019-07-13 | 2024-04-30 | 海盐县机械有限公司 | Antitheft bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200626 Effective date of abandoning: 20240430 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200626 Effective date of abandoning: 20240430 |