CN107269667A - A kind of electrical machinery theft-proof bolt and its removal tool - Google Patents
A kind of electrical machinery theft-proof bolt and its removal tool Download PDFInfo
- Publication number
- CN107269667A CN107269667A CN201710564987.3A CN201710564987A CN107269667A CN 107269667 A CN107269667 A CN 107269667A CN 201710564987 A CN201710564987 A CN 201710564987A CN 107269667 A CN107269667 A CN 107269667A
- Authority
- CN
- China
- Prior art keywords
- hole
- dismounting
- locking
- locking cap
- screw rod
- 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.)
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Closures For Containers (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides a kind of electrical machinery theft-proof bolt and its removal tool, belong to technical field of the electromechanical equipment.It solve existing motor inner core it is easily stolen steal etc. technical problem.A kind of electrical machinery theft-proof bolt, the outer end of connecting screw rod has a dismounting head, dismount the dismounting hole in head with outer end opening, the cross section for dismounting hole is square, a locking hole is offered respectively on four inwalls of mounting hole, T-shaped solution locking plug is inserted with locking hole, dismounting the outer end in hole has a location division, this removal tool includes pull bar and the fixed cover being set in outside pull bar, it is connected between fixed cover and pull bar by bearing, this removal tool also includes the connecting rod of four c-types, one end of connecting rod is hinged on pull bar, the middle part of connecting rod has chute, it is fixedly installed on fixed cover and the one-to-one alignment pin of chute, alignment pin is plugged in corresponding chute.The present invention has the advantages that simple in construction, antitheft coefficient is high.
Description
Technical field
The invention belongs to technical field of the electromechanical equipment, it is related to a kind of electrical machinery theft-proof bolt and its removal tool.
Background technology
Large-size machine is heavy due to housing, and criminal wishes, by removing motor housing, to obtain motor internal copper core, with
Seek exorbitant profit.
As the motor of public place electromechanical equipment, it is inevitable test and requirement that its is antitheft.
The content of the invention
The purpose of the present invention be for existing technology exist above mentioned problem there is provided a kind of electrical machinery theft-proof bolt, this hair
Bright technical problem to be solved is, how by the design of bolt, to reach the effect of anti-dismounting.
The purpose of the present invention can be realized by following technical proposal：A kind of electrical machinery theft-proof bolt, it is characterised in that including
Connecting screw rod, the outer end of the connecting screw rod has the dismounting hole in a dismounting head, the dismounting head with outer end opening, institute
The cross section for stating dismounting hole is square, and a locking hole, the locking hole are offered respectively on four inwalls of the mounting hole
T-shaped solution locking plug is inside inserted with, the inner of the solution locking plug is at an acute angle between the axis of connecting screw rod with one
Unblock inclined-plane, the outer end in the dismounting hole has a location division, and the aperture in the aperture ratio dismounting hole of the location division is big, described
Dismounting head on be arranged with a locking cap, the inwall of the locking cap have with the positioning convex of location division one-to-one four,
The positioning convex is plugged in corresponding location division, and a tamper baffle plate, the tamper baffle plate are arranged with the connecting screw rod
It is upper that there is the back-up ring that the opening of the locking cap is blocked and is located on the outside of locking cap, the outer wall of the back-up ring and the locking cap
Between have more than positioning convex thickness gap；A through hole is offered on the lateral surface of the locking cap.
For stationary cover and the connecting screw rod of body, under the parcel of locking cap, it is impossible to opened easily, and locking cap
It is fixed on by the cooperation of positioning convex and location division on the dismounting head of connecting screw rod outer end, it is desirable to open connecting screw rod,
Locking cap is switched on, opening locking cap must be by inserting the specific purpose tool in dismounting hole by four solution locking plug ejection sides
Can.
There is the dismounting being located on the inside of locking hole in a kind of above-mentioned electrical machinery theft-proof bolt, on the inwall in the dismounting hole
Interior hexagonal.
In a kind of above-mentioned electrical machinery theft-proof bolt, longitudinal register hole is offered in the connecting screw rod, the longitudinal direction is determined
The opening in position hole is towards the dismounting hole, with retaining spring in the longitudinal register hole.
In a kind of above-mentioned electrical machinery theft-proof bolt, there is a circumferentially positioned hole on the lateral wall of the locking cap, it is described
Have one to weaken annular groove on the madial wall of locking cap.Weaken annular groove and open amplitude for increasing the elasticity of locking cap outer end.
Second object of the present invention be for existing technology exist above mentioned problem there is provided a kind of electrical machinery theft-proof bolt
Removal tool, how the technical problems to be solved by the invention are by the light dismounting anti-theft bolt of specific purpose tool.
A kind of removal tool of electrical machinery theft-proof bolt, it is characterised in that this removal tool includes pull bar and is set in pull bar
Outside fixed cover, be connected between the fixed cover and the pull bar by bearing, this removal tool also includes the company of four c-types
Bar, one end of the connecting rod is hinged on pull bar, the middle part of the connecting rod have be fixedly installed on chute, the fixed cover with
The one-to-one alignment pin of chute, the alignment pin is plugged in corresponding chute.
In a kind of removal tool of above-mentioned electrical machinery theft-proof bolt, a limiting plate, institute are fixedly installed on the pull bar
State on pull bar and a backplate is connected with by spline, a holddown spring, the fixed cover are connected between the limiting plate and backplate
Outside end face on offer to be provided with some axially position holes, the backplate and can be plugged in determining in axially position hole
It is connected with position post, the fixed plate by spline on a circumferentially positioned plate, the circumferentially positioned plate and is provided with a positioning block.
Pull bar and fixed cover insertion through hole do not have, and pull bar insertion longitudinal register hole rotates fixed cover, connecting rod is stretched out fixed cover
Outside, backplate is pulled, locating dowel is inserted in positioning hole, outer drawing fixed cover is driven using the outer end of connecting rod and moved outside solution locking plug,
Locking cap can be removed.
Wherein, longitudinal register hole can be positioned to pull bar, and retaining spring can provide power-assisted for pull bar, it is ensured that connecting rod
Impaction state is between solution locking plug, will not be relaxed.
Solution locking plug can prevent from directly using die nut to open hexagonal in dismounting, so as to be broken to hexagonal in dismounting
It is bad.
Alternatively：
A kind of removal tool of electrical machinery theft-proof bolt, it is characterised in that this removal tool includes four presser feets and a drawing
Pipe, is connected, the presser feet, trombone slide and elastic portion are formed integrally, described between the trombone slide and four presser feets by an elastic portion
The outer end of presser feet is stretched out laterally is inserted with a support bar in a riser, the trombone slide, one end of the support bar is fixedly installed
There is a supporting plate, the supporting plate is located at the inner side of four presser feets.
Support bar is pulled outwardly, riser is located at the inner side of presser feet, presser feet presser feet is protruded into through hole, rotation to solution
The alternate position of locking plug, presser feet is stretched into and leads side within solution locking plug, promotes support bar to make supporting plate support presser feet not inside
Side shrink, it is ensured that the position of presser feet not be unlocked latch compression position, elastic portion be one at trombone slide to presser feet side
Indent, to the raised curved in trombone slide side, direct pull supporting plate drives elastic portion to tend to be straight, the outer end tool of presser feet
There is outside tension force, it is ensured that be in impaction state between riser and solution locking plug, can be directly by locking after being moved outside solution locking plug
Cap is extracted.
Brief description of the drawings
Fig. 1 is schematic view of the mounting position of the electrical machinery theft-proof bolt in motor.
Fig. 2 is to turn distribution structure schematic diagram in the middle of electrical machinery theft-proof bolt and removal tool in embodiment one.
Fig. 3 is the structural representation of removal tool in embodiment one.
Fig. 4 is the structural representation of electrical machinery theft-proof bolt in embodiment one.
Fig. 5 is structural representation of the connecting rod under contraction state in embodiment one.
Fig. 6 is structural representation of the connecting rod under open configuration in embodiment one.
Fig. 7 is the sectional view on A directions in Fig. 3.
Fig. 8 is the structural representation of removal tool in embodiment two.
In figure, 1, connecting screw rod；2nd, head is dismounted；21st, hole is dismounted；22nd, locking hole；23rd, locking plug is solved；24th, inclined-plane is unlocked；
25th, location division；26th, locking cap；27th, positioning convex；28th, tamper baffle plate；29th, back-up ring；31st, through hole；32nd, hexagonal in dismounting；41、
Longitudinal register hole；42nd, retaining spring；43rd, circumferentially positioned hole；44th, annular groove is weakened；45th, pull bar；46th, fixed cover；47th, connecting rod；
48th, chute；49th, alignment pin；51st, limiting plate；52nd, backplate；53rd, holddown spring；54th, axially position hole；55th, locating dowel；56th, it is all
To location-plate；57th, locating piece；61st, presser feet；62nd, trombone slide；63rd, elastic portion；64th, riser；65th, support bar；66th, supporting plate.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one
As shown in Figure 1, Figure 2 with shown in 4, electrical machinery theft-proof bolt includes connecting screw rod 1, and the outer end of connecting screw rod 1 has one to tear open
Dress first 2, dismounts the dismounting hole 21 in first 2 with outer end opening, and the cross section for dismounting hole 21 is square, in four of mounting hole
Offered respectively on wall and T-shaped solution locking plug 23 is inserted with a locking hole 22, locking hole 22, the inner tool of solution locking plug 23
There is unblock inclined-plane 24 at an acute angle between one and the axis of connecting screw rod 1, the outer end in dismounting hole 21 has a location division 25, fixed
The aperture in the aperture ratio dismounting hole 21 in position portion 25 is big, and being arranged with dismounting first 2 on a locking cap 26, the inwall of locking cap 26 has
With the positioning convex 27 of location division 25 one-to-one four, positioning convex 27 is plugged in corresponding location division 25, connecting screw rod 1
On be arranged with to have on a tamper baffle plate 28, tamper baffle plate 28 and block the opening of locking cap 26 and on the outside of locking cap 26
There is the gap of the thickness more than positioning convex 27 between the outer wall of back-up ring 29, back-up ring 29 and locking cap 26；Outside locking cap 26
A through hole 31 is offered on side；For stationary cover and the connecting screw rod of body 1, under the parcel of locking cap 26, it is impossible to quilt
Open easily, and locking cap 26 is fixed on tearing open for the outer end of connecting screw rod 1 by the cooperation of positioning convex 27 and location division 25
On dress first 2, it is desirable to open connecting screw rod 1, it is necessary to open locking cap 26, opening locking cap 26 must be by inserting in dismounting hole 21
Specific purpose tool by four solution locking plugs 23 ejection can.
Dismount to have on the inwall in hole 21 and be located at hexagonal 32 in the dismounting of the inner side of locking hole 22；Offered in connecting screw rod 1
Longitudinal register hole 41, the opening in longitudinal register hole 41 is towards dismounting hole 21, and longitudinal register hole 41 is interior to have retaining spring 42；Locking
Having on the lateral wall of cap 26 on a circumferentially positioned hole 43, the madial wall of locking cap 26 has one to weaken annular groove 44；Weaken annular groove
44 elasticity for being used to increase the outer end of locking cap 26 open amplitude.
As shown in Fig. 2, Fig. 3, Fig. 5, Fig. 6 and Fig. 7, this removal tool includes pull bar 45 and is set in consolidating outside pull bar 45
Surely 46 are covered, is connected between fixed cover 46 and pull bar 45 by bearing, this removal tool also includes the connecting rod 47 of four c-types, connecting rod
47 one end is hinged on pull bar 45, and the middle part of connecting rod 47 has to be fixedly installed and chute 48 1 on chute 48, fixed cover 46
One corresponding alignment pin 49, alignment pin 49 is plugged in corresponding chute 48.
It is fixedly installed on pull bar 45 on a limiting plate 51, pull bar 45 and a backplate 52, limiting plate 51 is connected with by spline
It is connected between backplate 52 on a holddown spring 53, the end face in the outside of fixed cover 46 and offers some axially position holes 54,
It is provided with backplate 52 in the locating dowel 55 that can be plugged in axially position hole 54, fixed plate and is connected with one circumferentially by spline
A positioning block 57 is provided with location-plate 56, circumferentially positioned plate 56；Pull bar 45 and the insertion through hole 31 of fixed cover 46 do not have, and pull bar 45 is inserted
Enter longitudinal register hole 41, rotate fixed cover 46, connecting rod 47 is stretched out outside fixed cover 46, pull backplate 52, insert locating dowel 55
Enter in positioning hole, outer drawing fixed cover 46 drives solution locking plug 23 is outer to move, can remove locking cap 26 using the outer end of connecting rod 47
Remove.
Wherein, longitudinal register hole 41 can be positioned to pull bar 45, and retaining spring 42 can provide power-assisted for pull bar 45,
Ensure to be in impaction state between connecting rod 47 and solution locking plug 23, will not relax；Solution locking plug 23 can prevent from directly using six
Angle spanner opens hexagonal 32 in dismounting, so as to be destroyed to hexagonal 32 in dismounting.
Embodiment two
The present embodiment content is substantially identical with embodiment one, except that：
This removal tool includes four presser feets 61 and a trombone slide 62, passes through an elasticity between trombone slide 62 and four presser feets 61
Portion 63 is connected, and presser feet 61, trombone slide 62 and elastic portion 63 are formed integrally, and a riser 64, trombone slide are stretched out in the outer end of presser feet 61 laterally
A support bar 65 is inserted with 62, one end of support bar 65 is fixedly installed a supporting plate 66, and supporting plate 66 is located at four presser feets
61 inner side；Support bar 65 is pulled outwardly, riser 64 is located at the inner side of presser feet 61, the presser feet 61 of presser feet 61 protrudes into through hole
In 31, presser feet 61 is stretched into the inner side for leading solution locking plug 23, promotes support bar 65 to make by rotation to the alternate position of solution locking plug 23
The support presser feet 61 of supporting plate 66 does not shrink to inner side, it is ensured that the position of presser feet 61 be not unlocked the position of the compression of latch 23, bullet
Property portion 63 be one at trombone slide 62 to the side indent of presser feet 61, to the raised curved in the side of trombone slide 62, direct pull branch
Fagging 66, drives elastic portion 63 to tend to be straight, and the outer end of presser feet 61 has outside tension force, it is ensured that riser 64 and solution locking plug 23
Between be in impaction state, will solution locking plug 23 is outer move after directly locking cap 26 can be extracted.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (7)
1. a kind of electrical machinery theft-proof bolt, it is characterised in that including connecting screw rod (1), the outer end of the connecting screw rod (1) has
There is the dismounting hole (21) of outer end opening, the cross section of the dismounting hole (21) is in one dismounting head (2), the dismounting head (2)
Offer and be inserted with a locking hole (22), the locking hole (22) in T respectively on square, four inwalls of the mounting hole
The solution locking plug (23) of type, the inner of the solution locking plug (23) is with an acute angle between one and the axis of connecting screw rod (1)
Unblock inclined-plane (24), the outer end of the dismounting hole (21) has a location division (25), and the aperture ratio of the location division (25) is torn open
The aperture for filling hole (21) is big, and being arranged with the dismounting head (2) on a locking cap (26), the inwall of the locking cap (26) has
With location division (25) one-to-one four positioning convex (27), the positioning convex (27) is plugged in corresponding location division (25)
Interior, being arranged with the connecting screw rod (1) on a tamper baffle plate (28), the tamper baffle plate (28) has the locking cap
(26) opening is blocked and the back-up ring (29) on the outside of locking cap (26), and the back-up ring (29) is outer with the locking cap (26)
There is the gap of the thickness more than positioning convex (27) between wall；A through hole is offered on the lateral surface of the locking cap (26)
(31)。
2. a kind of electrical machinery theft-proof bolt according to claim 1, it is characterised in that have on the inwall of the dismounting hole (21)
The hexagonal (32) in the dismounting on the inside of locking hole (22).
3. a kind of electrical machinery theft-proof bolt according to claim 2, it is characterised in that offered on the connecting screw rod (1) vertical
To positioning hole (41), the opening of the longitudinal register hole (41) is towards the dismounting hole (21), and the longitudinal register hole (41) is interior
With retaining spring (42).
4. a kind of electrical machinery theft-proof bolt according to claim 3, it is characterised in that have on the lateral wall of the locking cap (26)
Having on a circumferentially positioned hole (43), the madial wall of the locking cap (26) has one to weaken annular groove (44).
5. a kind of removal tool of electrical machinery theft-proof bolt, it is characterised in that electrical machinery theft-proof bolt includes connecting screw rod (1), described
The outer end of connecting screw rod (1) has the dismounting hole (21) in a dismounting head (2), the dismounting head (2) with outer end opening, institute
The cross section for stating dismounting hole (21) is square, and a locking hole (22), institute are offered respectively on four inwalls of the mounting hole
State and T-shaped solution locking plug (23) is inserted with locking hole (22), the inner of the solution locking plug (23) has one with being connected
Unblock inclined-plane (24) at an acute angle between the axis of screw rod (1), the outer end of the dismounting hole (21) has a location division (25), institute
The aperture for stating aperture ratio dismounting hole (21) of location division (25) is big, and a locking cap (26) is arranged with the dismounting head (2), described
Have and location division (25) one-to-one four positioning convex (27), the positioning convex (27) on the inwall of locking cap (26)
It is plugged in corresponding location division (25), a tamper baffle plate (28), the tamper baffle plate is arranged with the connecting screw rod (1)
(28) have on and block the opening of the locking cap (26) and the back-up ring (29) on the outside of locking cap (26), the back-up ring
(29) there is the gap of the thickness more than positioning convex (27) between the outer wall of the locking cap (26)；The locking cap (26)
Lateral surface on offer a through hole (31)；There is the dismounting being located on the inside of locking hole (22) on the inwall of the dismounting hole (21)
Interior hexagonal (32)；Longitudinal register hole (41), the opening direction of the longitudinal register hole (41) are offered on the connecting screw rod (1)
There is retaining spring (42) in the dismounting hole (21), the longitudinal register hole (41)；On the lateral wall of the locking cap (26)
With a circumferentially positioned hole (43), have one to weaken annular groove (44) on the madial wall of the locking cap (26)；This removal tool bag
The fixed cover (46) for including pull bar (45) and being set in outside pull bar (45), the fixed cover (46) can be plugged in the through hole
(31) in, it is connected between the fixed cover (46) and the pull bar (45) by bearing, this removal tool also includes four and institute
The one-to-one C-shaped connecting rod (47) of solution locking plug (23) is stated, one end of the connecting rod (47) is hinged on pull bar (45), institute
State the middle part of connecting rod (47) have be fixedly installed on chute (48), the fixed cover (46) it is fixed correspondingly with chute (48)
Position pin (49), the alignment pin (49) is plugged in corresponding chute (48).
6. the removal tool of a kind of electrical machinery theft-proof bolt according to claim 5, it is characterised in that on the pull bar (45)
It is fixedly installed on a limiting plate (51), the pull bar (45) and a backplate (52), the limiting plate (51) is connected with by spline
It is connected between backplate (52) on a holddown spring (53), the end face in the outside of the fixed cover (46) and offers some axial directions
The locating dowel (55) that can be plugged in axially position hole (54) is provided with positioning hole (54), the backplate (52), it is described solid
It is connected with fixed board by spline on a circumferentially positioned plate (56), the circumferentially positioned plate (56) and is provided with a positioning block (57).
7. a kind of removal tool of electrical machinery theft-proof bolt, it is characterised in that electrical machinery theft-proof bolt includes connecting screw rod (1), described
The outer end of connecting screw rod (1) has the dismounting hole (21) in a dismounting head (2), the dismounting head (2) with outer end opening, institute
The cross section for stating dismounting hole (21) is square, and a locking hole (22), institute are offered respectively on four inwalls of the mounting hole
State and T-shaped solution locking plug (23) is inserted with locking hole (22), the inner of the solution locking plug (23) has one with being connected
Unblock inclined-plane (24) at an acute angle between the axis of screw rod (1), the outer end of the dismounting hole (21) has a location division (25), institute
The aperture for stating aperture ratio dismounting hole (21) of location division (25) is big, and a locking cap (26) is arranged with the dismounting head (2), described
Have and location division (25) one-to-one four positioning convex (27), the positioning convex (27) on the inwall of locking cap (26)
It is plugged in corresponding location division (25), a tamper baffle plate (28), the tamper baffle plate is arranged with the connecting screw rod (1)
(28) have on and block the opening of the locking cap (26) and the back-up ring (29) on the outside of locking cap (26), the back-up ring
(29) there is the gap of the thickness more than positioning convex (27) between the outer wall of the locking cap (26)；The locking cap (26)
Lateral surface on offer a through hole (31)；This removal tool includes four and the one-to-one presser feet (61) of solution locking plug (23)
With a trombone slide (62), the trombone slide (62) is inserted into the through hole (31), the trombone slide (62) and four presser feets (61)
Between by an elastic portion (63) be connected, the presser feet (61), trombone slide (62) and elastic portion (63) are formed integrally, the presser feet
(61) outer end is stretched out in a riser (64), the trombone slide (62) laterally is inserted with a support bar (65), the support bar
(65) one end is fixedly installed a supporting plate (66), and the supporting plate (66) is located at the inner side of four presser feets (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564987.3A CN107269667B (en) | 2017-07-12 | 2017-07-12 | Motor anti-theft bolt and dismantling tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564987.3A CN107269667B (en) | 2017-07-12 | 2017-07-12 | Motor anti-theft bolt and dismantling tool thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107269667A true CN107269667A (en) | 2017-10-20 |
| CN107269667B CN107269667B (en) | 2022-09-23 |
Family
ID=60072010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710564987.3A Active CN107269667B (en) | 2017-07-12 | 2017-07-12 | Motor anti-theft bolt and dismantling tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107269667B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296619A (en) * | 2018-12-07 | 2019-02-01 | 浙江盛世瑞金紧固件有限公司 | A kind of loosing and theft preventing bolt easy to use |
| CN109340238A (en) * | 2018-12-07 | 2019-02-15 | 浙江盛世瑞金紧固件有限公司 | A kind of anti-theft bolt |
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| CN207033955U (en) * | 2017-07-12 | 2018-02-23 | 湖北二电电气有限公司 | A kind of tripper of electrical machinery theft-proof bolt |
| CN207027391U (en) * | 2017-07-12 | 2018-02-23 | 湖北二电电气有限公司 | A kind of removal tool of electrical machinery theft-proof bolt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296619A (en) * | 2018-12-07 | 2019-02-01 | 浙江盛世瑞金紧固件有限公司 | A kind of loosing and theft preventing bolt easy to use |
| CN109340238A (en) * | 2018-12-07 | 2019-02-15 | 浙江盛世瑞金紧固件有限公司 | A kind of anti-theft bolt |
| CN109340238B (en) * | 2018-12-07 | 2024-05-07 | 浙江盛世瑞金紧固件股份有限公司 | Antitheft bolt |
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| CN107269667B (en) | 2022-09-23 |
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