CN105443559A - Magnetic anti-theft screw cap and dedicated wrench - Google Patents
Magnetic anti-theft screw cap and dedicated wrench Download PDFInfo
- Publication number
- CN105443559A CN105443559A CN201510994219.2A CN201510994219A CN105443559A CN 105443559 A CN105443559 A CN 105443559A CN 201510994219 A CN201510994219 A CN 201510994219A CN 105443559 A CN105443559 A CN 105443559A
- Authority
- CN
- China
- Prior art keywords
- radial
- screw cap
- cap
- axial limiting
- protective sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 59
- 239000007769 metal material Substances 0.000 claims abstract description 6
- 230000000452 restraining effect Effects 0.000 claims description 42
- 230000007547 defect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/485—Spanners; Wrenches for special purposes for theft-proof screws, bolts or nuts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a magnetic anti-theft screw cap and a dedicated wrench. The magnetic anti-theft screw cap comprises a screw cap body and a screw cap protective sleeve body, wherein the screw cap body is rotatably placed in the screw cap protective sleeve body through a clamping structure; a plurality of upper radial limiting grooves are formed at intervals in the lower end face of the screw cap body circumferentially; the outer side face of the screw cap protective sleeve body is in a shape of an equilateral polygon; a lower end port of the screw cap protective sleeve body extends axially in a protruding mode, so that a ring shoulder is formed; the ring shoulder is adjacent to the lower end face of the screw cap body; a plurality of lower radial limiting grooves are formed at intervals in the upper end face of the ring shoulder circumferentially; a radial limiting sliding block made from a magnetic metal material is embedded in each lower radial limiting groove; all the lower radial limiting grooves can correspond to the upper radial limiting grooves; the bottom of each radial limiting sliding block is connected with an elastic limiting device fixed on the ring shoulder; and the special wrench is applied to the magnetic anti-theft screw cap. The magnetic anti-theft screw cap and the wrench have an anti-theft function, can reduce the rate of parts of being stolen and overcome defects in the prior art.
Description
Technical field
The invention belongs to anti-theft screw cap technical field, in particular to a kind of magnetic type anti-theft screw cap and special spanner.
Background technique
In petroleum production, the oil well in oil field has and is a great deal ofly positioned at remoter and meagrely-populated place, for such oil well site, can not accomplish have people to guard in 24 hours, for dismountable facility at scene, little of valve handle, greatly to the equilibrium block in oil pumping unit, motor etc., time have robbery accident to occur.This type of event, not only causes the loss that stolen object itself is worth, and the more serious oil field that affects normally produces, and brings massive losses to country.
In addition, present automobile becomes the daily necessities of Chinese city common people gradually, but automobile tire belongs to unprotect state, is easy to dismounting, leaves opportunity, often occur the phenomenon that automobile tire is stolen to lawless person.
In view of this, the present inventor, according to the Production design experience being engaged in related domain and association area for many years, develops a kind of magnetic type anti-theft screw cap and special spanner, to solving prior art Problems existing.
Summary of the invention
The object of the invention is to be to provide a kind of magnetic type anti-theft screw cap and special spanner, there is anti-theft feature, the stolen rate of component can be reduced, overcome the defect of prior art.
For this reason, the present invention proposes a kind of magnetic type anti-theft screw cap, it includes a nut body and a cap nut protective sleeve main body, what described nut body can be rotated by an interface arrangment is positioned in described cap nut protective sleeve main body, its lower end surface circumferentially interval be provided with multiple radial restraining groove, the outer side surface of described cap nut protective sleeve main body is regular polygon, its lower end mouth place radially protrudes out and is formed with a ring shoulder, described ring shoulder is adjacent to the lower end surface of described nut body, its upper-end surface circumferentially interval be provided with multiple lower radial restraining groove, be embedded with one in described lower radial restraining groove to be magnetic the radial position limiting slide block that metallic material makes, each described lower radial restraining groove can be relative with each described radial restraining groove, the bottom and one of described radial position limiting slide block is fixed on the elastic limit device that described ring takes on and is connected.
Magnetic type anti-theft screw cap as above, wherein, described interface arrangment includes multiple axial limiting pawl and multiple axial limiting step, each described axial limiting pawl circumferentially and the outer periphery place being arranged at described nut body lower end at interval, on the inner side surface being arranged at described cap nut protective sleeve main body at each described axial limiting step circumferentially interval, the upper-end surface that described axial limiting step is takeed on adjacent to described ring, be formed with the conduit of the accommodating described axial limiting pawl of an energy between the two, an axially open passed through for described axial limiting pawl is formed between each adjacent described axial limiting step, the quantity of described axially open is identical with the quantity of described axial limiting pawl, described axial limiting pawl can corresponding be embedded in described conduit by described axially open.
Magnetic type anti-theft screw cap as above, wherein, the outer periphery of described nut body lower end are recessed is further formed with a ring portion, is formed with a shoulder between the upside of described ring portion and the outer side surface of described nut body, each described axial limiting pawl being circumferentially arranged in described ring portion of interval.
Magnetic type anti-theft screw cap as above; wherein; distance between described axial limiting pawl and described shoulder is not less than described axial limiting step at described cap nut protective sleeve body shaft width upwards; described axial limiting pawl is identical along the length of described cap nut protective sleeve main body radial direction with described axial limiting step along the length of described nut body radial direction, and is not more than the degree of depth of described ring portion.
Magnetic type anti-theft screw cap as above, wherein, the outer side surface of described nut body can contact with the inner side surface of described cap nut protective sleeve main body.
Magnetic type anti-theft screw cap as above, wherein, the quantity of described axial limiting pawl and described axial limiting step is all no less than 3, and circumference respectively along described nut body and described cap nut protective sleeve main body is uniform.
Magnetic type anti-theft screw cap as above, wherein, the quantity of described radial restraining groove and lower radial restraining groove is no less than 3, and the circumference of described nut body and described ring shoulder is uniform respectively.
Magnetic type anti-theft screw cap as above, wherein, described elastic limit device includes a radial limited screw and a radial limit spring, described limit spring is sheathed on the screw rod of described radial limited screw, the bottom land place of described lower radial restraining groove is provided with a through hole, the bottom of described radial position limiting slide block is provided with screw channel, described radial limited screw is mobile is arranged in described through hole, and be connected with the screw channel of described radial position limiting slide block, the nut of the two ends of described radial the limit spring then corresponding and described ring lower end surface of takeing on and described radial limited screw contacts.
Magnetic type anti-theft screw cap as above, wherein, the position that lower end surface is corresponding to described through hole of described ring shoulder is arranged with a circular groove, and described circular groove is arranged in coaxial with described through hole, and the nut of described radial limited screw is placed in described circular groove.
The present invention also proposes a kind of special spanner for above-mentioned magnetic type anti-theft screw cap; it is provided with one handle and is connected to the cap bag of described handle one end; the inner side surface of described cap bag is formed with the regular polygon matched with the outer side surface of described cap nut protective sleeve; its upper end-hole place is provided with one annular strong magnet; when described cap bag is sheathed on the outside of described cap nut protective sleeve main body; described annular strong magnet can be adjacent with the upper-end surface of described nut body, and can adsorb described radial position limiting slide block and move up.
The magnetic type anti-theft screw cap that the present invention proposes and special spanner, be provided with nut body and cap nut protective sleeve main body, by rotating relatively freely between nut body and cap nut protective sleeve main body, makes nut body cannot to be tightened dismounting; When carrying out operation; need to coordinate special spanner to use; cap bag by special spanner to be set in described cap nut protective sleeve main body and to rotate; to utilize magnetic force the upper end of radial position limiting slide block to move in upper radial restraining groove, nut body and cap nut protective sleeve main body are rotated together, thus carries out tightening or field-strip; thus; the present invention has anti-theft feature, can stop the object robbery accidents such as petroleum well field handwheel, equilibrium block, motor and occur, reduce the stolen incidence rate of vehicle tyre.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is the perspective exploded view of magnetic type anti-theft screw cap of the present invention.
Fig. 2 a is the stereogram of nut body in magnetic type anti-theft screw cap of the present invention.
Fig. 2 b is the worm's eye view of nut body in magnetic type anti-theft screw cap of the present invention.
Fig. 2 c is the side view of nut body in magnetic type anti-theft screw cap of the present invention.
Fig. 3 a is the stereogram of cap nut protective sleeve main body in magnetic type anti-theft screw cap of the present invention.
Fig. 3 b is the plan view of cap nut protective sleeve main body in magnetic type anti-theft screw cap of the present invention.
Fig. 3 c is the worm's eye view of cap nut protective sleeve main body in magnetic type anti-theft screw cap of the present invention.
Fig. 4 a is the stereogram of radial position limiting slide block in magnetic type anti-theft screw cap of the present invention.
Fig. 4 b is the worm's eye view of radial position limiting slide block in magnetic type anti-theft screw cap of the present invention.
Fig. 4 c is the plan view of radial position limiting slide block in magnetic type anti-theft screw cap of the present invention.
Fig. 5 is the structural representation of magnetic type anti-theft screw cap Elastic limit stoper of the present invention.
Fig. 6 a is the stereogram of special spanner of the present invention.
Fig. 6 b is the plan view of special spanner of the present invention.
Fig. 6 c is the worm's eye view of special spanner of the present invention.
Fig. 6 d is the side view of special spanner of the present invention.
Primary component label declaration:
1 nut body 101 ring portion
Radial restraining groove on 102 shoulders 11
12 axial limiting pawl 2 cap nut protective sleeve main bodys
21 rings take on 22 times radial restraining grooves
221 through hole 222 circular grooves
23 radial position limiting slide block 231 screw channels
The radial limited screw of 24 elastic limit device 241
242 radial limit spring 25 axial limiting steps
26 conduit 27 axially opens
3 special spanner 31 handles
The annular strong magnet of 32 cap bag 33
Embodiment
The present invention proposes a kind of magnetic type anti-theft screw cap, this magnetic type anti-theft screw cap includes a nut body and a cap nut protective sleeve main body, what described nut body can be rotated by an interface arrangment is positioned in described cap nut protective sleeve main body, its lower end surface circumferentially interval be provided with multiple radial restraining groove, the outer side surface of described cap nut protective sleeve main body is regular polygon, its lower end mouth place radially protrudes out and is formed with a ring shoulder, described ring shoulder is adjacent to the lower end surface of described nut body, its upper-end surface circumferentially interval be provided with multiple lower radial restraining groove, be embedded with one in described lower radial restraining groove to be magnetic the radial position limiting slide block that metallic material makes, each described lower radial restraining groove can be relative with each described radial restraining groove, the bottom and one of described radial position limiting slide block is fixed on the elastic limit device that described ring takes on and is connected.
The present invention also proposes a kind of special spanner for above-mentioned magnetic type anti-theft screw cap; it is provided with one handle and is connected to the cap bag of described handle one end; the inner side surface of described cap bag is formed with the regular polygon matched with the outer side surface of described cap nut protective sleeve; its upper end-hole place is provided with one annular strong magnet; when described cap bag is sheathed on the outside of described cap nut protective sleeve main body; described annular strong magnet can be adjacent with the upper-end surface of described nut body, and can adsorb described radial position limiting slide block and move up.
Magnetic type anti-theft screw cap of the present invention and special spanner, have anti-theft feature, can reduce the stolen rate of component, overcome the defect of prior art.
Have understanding clearly to technical characteristics of the present invention, object and effect, below in conjunction with accompanying drawing and preferred embodiment, the magnetic type anti-theft screw cap propose the present invention and the embodiment of special spanner, structure, feature and effect, be described in detail as follows.In addition, by the explanation of embodiment, when can to the present invention for the technological means reaching predetermined object and take and effect are goed deep into concrete understanding more, but institute's accompanying drawing be only to provide with reference to and use is described, is not used for being limited the present invention.
Fig. 1 is the perspective exploded view of magnetic type anti-theft screw cap of the present invention.Fig. 2 a is the stereogram of nut body in magnetic type anti-theft screw cap of the present invention.Fig. 2 b is the worm's eye view of nut body in magnetic type anti-theft screw cap of the present invention.Fig. 2 c is the side view of nut body in magnetic type anti-theft screw cap of the present invention.Fig. 3 a is the stereogram of cap nut protective sleeve main body in magnetic type anti-theft screw cap of the present invention.Fig. 3 b is the plan view of cap nut protective sleeve main body in magnetic type anti-theft screw cap of the present invention.Fig. 3 c is the worm's eye view of cap nut protective sleeve main body in magnetic type anti-theft screw cap of the present invention.Fig. 4 a is the stereogram of radial position limiting slide block in magnetic type anti-theft screw cap of the present invention.Fig. 4 b is the worm's eye view of radial position limiting slide block in magnetic type anti-theft screw cap of the present invention.Fig. 4 c is the plan view of radial position limiting slide block in magnetic type anti-theft screw cap of the present invention.Fig. 5 is the structural representation of magnetic type anti-theft screw cap Elastic limit stoper of the present invention.
As shown in Fig. 1 to Fig. 2 c, the magnetic type anti-theft screw cap that the present invention proposes, include nut body 1 and a cap nut protective sleeve main body 2, described nut body 1 preferably adopts magnetic metal material (as iron) to make, what it can be rotated by an interface arrangment is positioned in described cap nut protective sleeve main body 2, its lower end surface circumferentially interval be provided with multiple radial restraining groove 11, the outer side surface of described cap nut protective sleeve main body 2 is regular polygon, its lower end mouth place radially protrudes out and is formed with a ring shoulder 21, described ring shoulder 21 is adjacent to the lower end surface of described nut body 1, its upper-end surface circumferentially interval be provided with multiple lower radial restraining groove 22, be embedded with one in described lower radial restraining groove 22 to be magnetic the radial position limiting slide block 23 that metallic material (as iron) makes, in the process that described nut body 1 is rotated, each described lower radial restraining groove 22 can be relative with each described radial restraining groove 11, when position limiting slide block 23 radial described in attraction is up, the upper end of described radial position limiting slide block 23 can correspondingly embed in described radial restraining groove 11, described nut body 1 and described cap nut protective sleeve main body 2 are together rotated, wherein, the bottom and one of described radial position limiting slide block 23 is fixed on the elastic limit device 24 that described ring takes on 21 and is connected, after magnet is taken away, described elastic limit device 24 can drive radial position limiting slide block 23 to reset, again embed in described lower radial restraining groove 22.
Please also refer to Fig. 3 a to Fig. 3 c, described interface arrangment 3 includes multiple axial limiting pawl 12 and multiple axial limiting step 25, the outer periphery place being arranged at described nut body 1 lower end at each described axial limiting pawl 12 circumferentially interval, each described axial limiting step 25 circumferentially and interval the inner side surface being arranged at described cap nut protective sleeve main body 2 on, described axial limiting step 2 is adjacent to the upper-end surface of described ring shoulder 21, be formed with the conduit 26 of the accommodating described axial limiting pawl 12 of an energy between the two, an axially open 27 passed through for described axial limiting pawl is formed between each adjacent described axial limiting step 25, the quantity of described axially open 27 is identical with the quantity of described axial limiting pawl 12, described axial limiting pawl 12 can corresponding embed in described conduit 26 by described axially open 27, be connected in described cap nut protective sleeve main body 2 to make described nut body 1.
Wherein, the outer periphery of described nut body 1 lower end are recessed is further formed with a ring portion 101, a shoulder 102 is formed, each described axial limiting pawl 12 being circumferentially arranged in described ring portion 101 of interval between the upside of described ring portion 10 and the outer side surface of described nut body 1.
Preferably; distance between described axial limiting pawl 12 and described shoulder 102 is greater than described axial limiting step 25 at described cap nut protective sleeve main body 2 width axially; with the upside making described axial limiting step 25 relatively can be embedded at described axial limiting pawl 12; described axial limiting pawl 12 is identical along the length of described cap nut protective sleeve main body 2 radial direction with described axial limiting step 25 along the length of described nut body 1 radial direction, and is not more than the degree of depth of described ring portion 101.Thus, the clamping reliability between described nut body 1 and described cap nut protective sleeve main body 2 can be improved, the outer side surface of described nut body 1 can be contacted with the inner side surface of described cap nut protective sleeve main body 2.
In order to ensure structural stability, the quantity of preferred described axial limiting pawl 12 and described axial limiting step 25 is all no less than 3, and circumference respectively along described nut body 1 and described cap nut protective sleeve main body 2 is uniform.In the construction illustrated, preferred described axial limiting pawl 12 and axial limiting step 25 are respectively arranged with 3.
In addition, the quantity of described radial restraining groove 11 and lower radial restraining groove 22 is no less than 3, and the circumference of described nut body 1 and described ring shoulder 21 is uniform respectively.In the construction illustrated, preferred described radial restraining groove 11, lower radial restraining groove 22 are respectively arranged with 5.
As shown in Fig. 4 a to Fig. 5, described elastic limit device 24 includes radial limited screw 241 and a radial limit spring 242, described limit spring 242 is sheathed on the screw rod 2411 of described radial limited screw 241, the bottom land place of described lower radial restraining groove 22 is provided with a through hole 221, the bottom of described radial position limiting slide block 23 is provided with screw channel 231, described radial limited screw 241 is mobile is arranged in described through hole 221, and be connected with the screw channel 231 of described radial position limiting slide block 23, the two ends of described radial limit spring 242 are then corresponding takes on the lower end surface of 21 with described ring and the nut 2412 of described radial limited screw 241 contacts.
Further, the position that lower end surface is corresponding to described through hole 221 of described ring shoulder 21 is arranged with a circular groove 222, and described circular groove 222 is arranged in coaxial with described through hole 221, and the nut 2412 of described radial limited screw 241 is placed in described circular groove 222.
The magnetic type anti-theft screw cap that the present invention proposes, when reality uses, that described radial limit spring 242 is through on the screw rod 2411 of described radial limited screw 241, then the limited screw 241 be equipped with is loaded the through hole 221 of described ring shoulder 21 from the below of described cap nut protective sleeve main body 2, then described radial position limiting slide block 23 is loaded in described lower radial restraining groove 22, and by described radial limited screw 241 precession screw channel 231, the like, each described radial position limiting slide block 23 is installed one by one; After all described radial position limiting slide blocks 23 install; each axial limiting pawl 12 of described nut body 1 is imbedded each axially open 27 of cap nut protective sleeve main body 2; again described nut body 1 is reversed an orientation; each described axial limiting pawl 12 is made to rotate to each conduit 26; each described axial limiting step 25 is the position of correspondence between each described axial limiting pawl 12 and described shoulder 102 then; thus, magnetic type anti-theft screw cap of the present invention installs.
Fig. 6 a is the stereogram of special spanner of the present invention.Fig. 6 b is the plan view of special spanner of the present invention.Fig. 6 c is the worm's eye view of special spanner of the present invention.Fig. 6 d is the side view of special spanner of the present invention.
Please also refer to Fig. 6 a to Fig. 6 d, the present invention proposes also to propose a kind of special spanner 4, it is for above-mentioned magnetic type anti-theft screw cap hand, this special spanner 3 is provided with one handle 31 and is connected to the cap bag 32 of described handle 31 one end, the inner side surface of described cap bag 32 is formed with the regular polygon matched with the outer side surface of described cap nut protective sleeve 2, its upper end-hole place passes through clamping, the mode such as to be spirally connected is provided with an annular strong magnet (strong magnet and the strong magnetic of rare earth, namely refer to neodymium iron boron strong magnet) 33, when described cap bag 32 is sheathed on the outside of described cap nut protective sleeve main body 2, described annular strong magnet 33 can be adjacent with the upper-end surface of described nut body 1, and described radial position limiting slide block 23 can be adsorbed move up.
The magnetic type anti-theft screw cap that the present invention proposes and special spanner, when embody rule, the nut body 1 of described magnetic type anti-theft screw cap is positioned over accordingly to be tightened as on screw rod, and described special spanner 3 cap bag 32 is sheathed on the outside of described cap nut protective sleeve main body 2, then under the effect of magnetic force, described radial position limiting slide block 23 can be adsorbed and is resisted against the lower end surface with described nut body 1, simultaneously, the radial limited screw 241 of described elastic limit device 24 is stretched, and makes described radial limit spring 242 be in compressive state; Gripping handle 31 also rotates, rotate relative to described nut body 1 in the lump to drive described cap bag 32 and described cap nut protective sleeve main body 2, when described each described lower radial restraining groove 22 is relative with each described radial restraining groove 11, the upper end correspondence of described radial position limiting slide block 23 embeds in described radial restraining groove 11, described nut body 1 and described cap nut protective sleeve main body 2 are together rotated, then under the rotation of described special spanner, described nut body 1 can be tightened in be tightened place;
After operation completes; remove described special spanner 3; magnetic force disappears; described radial position limiting slide block 23 is under the elastic force effect of radial limit spring 242; leave the upper radial restraining groove 11 of described nut body 1, be again reset in described lower radial restraining groove 22, now; described cap nut protective sleeve main body 2 can rotate freely relative to described nut body 1, plays antitheft effect.
The foregoing is only the schematic embodiment of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (10)
1. a magnetic type anti-theft screw cap, it is characterized in that, described magnetic type anti-theft screw cap includes a nut body and a cap nut protective sleeve main body, what described nut body can be rotated by an interface arrangment is positioned in described cap nut protective sleeve main body, its lower end surface circumferentially interval be provided with multiple radial restraining groove, the outer side surface of described cap nut protective sleeve main body is regular polygon, its lower end mouth place radially protrudes out and is formed with a ring shoulder, described ring shoulder is adjacent to the lower end surface of described nut body, its upper-end surface circumferentially interval be provided with multiple lower radial restraining groove, be embedded with one in described lower radial restraining groove to be magnetic the radial position limiting slide block that metallic material makes, each described lower radial restraining groove can be relative with each described radial restraining groove, the bottom and one of described radial position limiting slide block is fixed on the elastic limit device that described ring takes on and is connected.
2. magnetic type anti-theft screw cap as claimed in claim 1, it is characterized in that, described interface arrangment includes multiple axial limiting pawl and multiple axial limiting step, each described axial limiting pawl circumferentially and the outer periphery place being arranged at described nut body lower end at interval, on the inner side surface being arranged at described cap nut protective sleeve main body at each described axial limiting step circumferentially interval, the upper-end surface that described axial limiting step is takeed on adjacent to described ring, be formed with the conduit of the accommodating described axial limiting pawl of an energy between the two, an axially open passed through for described axial limiting pawl is formed between each adjacent described axial limiting step, the quantity of described axially open is identical with the quantity of described axial limiting pawl, described axial limiting pawl can corresponding be embedded in described conduit by described axially open.
3. magnetic type anti-theft screw cap as claimed in claim 2, it is characterized in that, the outer periphery of described nut body lower end are recessed is further formed with a ring portion, a shoulder is formed with, each described axial limiting pawl being circumferentially arranged in described ring portion of interval between the upside of described ring portion and the outer side surface of described nut body.
4. magnetic type anti-theft screw cap as claimed in claim 3; it is characterized in that; distance between described axial limiting pawl and described shoulder is not less than described axial limiting step at described cap nut protective sleeve body shaft width upwards; described axial limiting pawl is identical along the length of described cap nut protective sleeve main body radial direction with described axial limiting step along the length of described nut body radial direction, and is not more than the degree of depth of described ring portion.
5. magnetic type anti-theft screw cap as claimed in claim 4, it is characterized in that, the outer side surface of described nut body can contact with the inner side surface of described cap nut protective sleeve main body.
6. the magnetic type anti-theft screw cap as described in any one of claim 2 to 5, is characterized in that, the quantity of described axial limiting pawl and described axial limiting step is all no less than 3, and circumference respectively along described nut body and described cap nut protective sleeve main body is uniform.
7. the magnetic type anti-theft screw cap as described in any one of claim 1 to 5, is characterized in that, the quantity of described radial restraining groove and lower radial restraining groove is no less than 3, and the circumference of described nut body and described ring shoulder is uniform respectively.
8. the magnetic type anti-theft screw cap as described in any one of claim 1 to 5, it is characterized in that, described elastic limit device includes a radial limited screw and a radial limit spring, described limit spring is sheathed on the screw rod of described radial limited screw, the bottom land place of described lower radial restraining groove is provided with a through hole, the bottom of described radial position limiting slide block is provided with screw channel, described radial limited screw is mobile is arranged in described through hole, and be connected with the screw channel of described radial position limiting slide block, the nut of the two ends of described radial the limit spring then corresponding and described ring lower end surface of takeing on and described radial limited screw contacts.
9. magnetic type anti-theft screw cap as claimed in claim 8, it is characterized in that, the position that lower end surface is corresponding to described through hole of described ring shoulder is arranged with a circular groove, and described circular groove is arranged in coaxial with described through hole, and the nut of described radial limited screw is placed in described circular groove.
10. the special spanner for the magnetic type anti-theft screw cap as described in any one of claim 1 to 9; it is characterized in that; described spanner is provided with one handle and is connected to the cap bag of described handle one end; the inner side surface of described cap bag is formed with the regular polygon matched with the outer side surface of described cap nut protective sleeve; its upper end-hole place is provided with one annular strong magnet; when described cap bag is sheathed on the outside of described cap nut protective sleeve main body; described annular strong magnet can be adjacent with the upper-end surface of described nut body, and can adsorb described radial position limiting slide block and move up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994219.2A CN105443559A (en) | 2015-12-25 | 2015-12-25 | Magnetic anti-theft screw cap and dedicated wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994219.2A CN105443559A (en) | 2015-12-25 | 2015-12-25 | Magnetic anti-theft screw cap and dedicated wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443559A true CN105443559A (en) | 2016-03-30 |
Family
ID=55554095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510994219.2A Pending CN105443559A (en) | 2015-12-25 | 2015-12-25 | Magnetic anti-theft screw cap and dedicated wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443559A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555812A (en) * | 2018-06-29 | 2018-09-21 | 国家电网公司 | Ball-type antitheft nut removal tool |
| CN109882493A (en) * | 2019-04-17 | 2019-06-14 | 广东电网有限责任公司 | A kind of nut screw anti-theft protective device |
| CN112283233A (en) * | 2020-09-10 | 2021-01-29 | 海能达通信股份有限公司 | Nut assembly, connecting mechanism and dismounting element |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2186544A1 (en) * | 2001-06-08 | 2003-05-01 | S R L Ag Ing | Security bolt activated by a magnetic key. |
| CN101733720A (en) * | 2008-11-21 | 2010-06-16 | 康佳集团股份有限公司 | Small space wrench |
| CN202560779U (en) * | 2012-05-11 | 2012-11-28 | 郭连华 | Positioning and anti-disassembly connection piece |
| CN203051885U (en) * | 2012-12-01 | 2013-07-10 | 卓旦春 | Vent valve |
| EP2980768A1 (en) * | 2014-08-02 | 2016-02-03 | Hekatron Vertriebs GmbH | Fire detector with locking and method for locking and unlocking a detector part from/to a base of a fire alarm |
| CN205298223U (en) * | 2015-12-25 | 2016-06-08 | 中国石油天然气股份有限公司 | Magnetic -type theftproof nut and special spanner |
-
2015
- 2015-12-25 CN CN201510994219.2A patent/CN105443559A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2186544A1 (en) * | 2001-06-08 | 2003-05-01 | S R L Ag Ing | Security bolt activated by a magnetic key. |
| CN101733720A (en) * | 2008-11-21 | 2010-06-16 | 康佳集团股份有限公司 | Small space wrench |
| CN202560779U (en) * | 2012-05-11 | 2012-11-28 | 郭连华 | Positioning and anti-disassembly connection piece |
| CN203051885U (en) * | 2012-12-01 | 2013-07-10 | 卓旦春 | Vent valve |
| EP2980768A1 (en) * | 2014-08-02 | 2016-02-03 | Hekatron Vertriebs GmbH | Fire detector with locking and method for locking and unlocking a detector part from/to a base of a fire alarm |
| CN205298223U (en) * | 2015-12-25 | 2016-06-08 | 中国石油天然气股份有限公司 | Magnetic -type theftproof nut and special spanner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555812A (en) * | 2018-06-29 | 2018-09-21 | 国家电网公司 | Ball-type antitheft nut removal tool |
| CN109882493A (en) * | 2019-04-17 | 2019-06-14 | 广东电网有限责任公司 | A kind of nut screw anti-theft protective device |
| CN109882493B (en) * | 2019-04-17 | 2024-04-30 | 广东电网有限责任公司 | Nut screw anti-theft protection device |
| CN112283233A (en) * | 2020-09-10 | 2021-01-29 | 海能达通信股份有限公司 | Nut assembly, connecting mechanism and dismounting element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105443559A (en) | Magnetic anti-theft screw cap and dedicated wrench | |
| CN205298223U (en) | Magnetic -type theftproof nut and special spanner | |
| US20140079574A1 (en) | Adjustable locking shaft-locating device | |
| WO2016060852A3 (en) | Up drill apparatus and method | |
| US9611968B2 (en) | Security lid | |
| WO2017112884A3 (en) | Expandable anchor sleeve | |
| CN104228453A (en) | Automotive hub lock | |
| CN202659199U (en) | Anti-theft device for oil producing wellhead | |
| CN204663479U (en) | A kind of nonmetal easy brill bridging plug | |
| CN204226408U (en) | Magnetic theft-proof lock jack panel and removal tool special | |
| CN205822260U (en) | There is the municipal Safety well cover of construction protection function | |
| WO2009137516A8 (en) | Tubular running devices and methods | |
| GB2577829A (en) | Electromechanical rotary pipe mill or hone and method | |
| CN203906993U (en) | Small-flow anti-theft ball valve | |
| CN103925275B (en) | Tamper nut and matching used dismantling tong thereof | |
| CN204591961U (en) | Anti-theft UT bolt | |
| CN201209355Y (en) | Embedding wheel nut anti-theft lock | |
| CN208184682U (en) | Tubing centrilizer | |
| WO2014179340A3 (en) | Methods and systems for chemically encoding high-resolution shapes in silicon nanowires | |
| CN203729841U (en) | Antitheft door viewer | |
| CN201875272U (en) | Permanent magnet zero-leakage pressure tapping mechanism capable of preventing petroleum from burglary | |
| CN2787908Y (en) | Backstop nut with strophoid slots | |
| CN2731222Y (en) | Illegal operation proof cover for handle wheel of valve | |
| CN201874011U (en) | Antitheft safety lock of manhole cover | |
| CN204646955U (en) | Circular anti-theft nut in a kind of outer prismatic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160330 |