CN106481643B - A kind of communication pipe anti-theft blocking device and its installation tool - Google Patents
A kind of communication pipe anti-theft blocking device and its installation tool Download PDFInfo
- Publication number
- CN106481643B CN106481643B CN201510526958.9A CN201510526958A CN106481643B CN 106481643 B CN106481643 B CN 106481643B CN 201510526958 A CN201510526958 A CN 201510526958A CN 106481643 B CN106481643 B CN 106481643B
- Authority
- CN
- China
- Prior art keywords
- theft
- communication pipe
- fixing clamp
- blocking device
- center
- 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.)
- Active
Links
Landscapes
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of communication pipe anti-theft blocking devices, comprising: the first fixing clamp；The second fixing clamp being coaxially disposed with the first fixing clamp；The rubber ring being placed coaxially between the first fixing clamp and the second fixing clamp may expand under the action of clamping force；The anti-theft bolt passed through from the first fixing clamp, rubber ring and the second fixing clamp, screw rod lower end have external screw thread, and upper end is equipped with head；And it is fastened on the stop nut on the screw rod of anti-theft bolt；The head is equipped with center counterbore, and the head and the center counterbore constitute the theft-prevention structure for dismounting the communication pipe anti-theft blocking device.The invention also discloses the installation tools of communication pipe anti-theft blocking device.
Description
Technical field
The present invention relates to the blocking device of communication pipe, in particular to a kind of communication pipe anti-theft blocking device and its peace
Holding tool.
Background technique
With the continuous acceleration of domestic city construction process and communication construction demand, communication infrastructure resource becomes increasingly
It is rare and valuable.Communication pipe is most important basic resource in transmission network, and the underground for being mainly used for optical cable is laid.City road
After the completion of the construction once of road, it will be difficult to carry out municipal administration excavation again and pipeline is laid with, the pipeline and pipe for being laid with early period or having reserved
Hole resource is of great rarity, it is necessary to carry out effective resource management to it.
The pore resource shortage of communication pipe is effectively managed at present and salvo, there are biggish resource managements
The case where risk, pipeline is occupied and usurps, is commonplace.Most common to the management of pipeline pore is exactly on pipeline manhole lid
The mode of locking is taken, for such mode there are still stolen risk, owner is not available reserved pipeline resource, causes wave
Take, business growth is also needed to increase and be invested.
Summary of the invention
In order to evade above-mentioned risk, the invention proposes a kind of higher solutions of safety, are blocked by pore and are filled
It sets, carries out the management of pore resource, only specific tool could open blocking device through the invention.
According to an aspect of the present invention, a kind of communication pipe anti-theft blocking device is proposed, comprising:
First fixing clamp；
Second fixing clamp, second fixing clamp are coaxially disposed with first fixing clamp；
Rubber ring, the rubber ring are placed coaxially between first fixing clamp and second fixing clamp, and
It is expanded under the action of clamping force；
Anti-theft bolt, the anti-theft bolt from first fixing clamp, the rubber ring and second fixing clamp sequence
It passes through, screw rod lower end has external screw thread, and upper end is equipped with head；
Stop nut, the stop nut are anchored on the screw rod；It is characterized in that,
The head is equipped with center counterbore, and the head and the center counterbore, which are constituted, dismounts the communication pipe anti-theft
The theft-prevention structure of blocking device.
Communication pipe anti-theft blocking device of the invention also includes the following features:
In the theft-prevention structure, the center counterbore has internal screw thread, and the head has outer profile, the outer profile
Cross section is odd-shaped cross section；
Or preferably, in the theft-prevention structure, the head is equipped with push-and-pull card slot and device is puted forth effort in turn, and the center is heavy
The longitudinal sectional shape in hole be it is inverse-T-shaped, the push-and-pull card slot constitutes the inverse-T-shaped bottom, and device is puted forth effort in the turn
For the block above the push-and-pull card slot is arranged in, center counterbore base center is equipped with the hemisphere of protrusion；
The anti-theft bolt upper end is equipped with shoulder, and first fixing clamp upper surface is interior from center bore to being outwards equipped with
Recessed structure is matched with the shoulder of the anti-theft bolt；
Second fixing clamp upper surface is set from center bore to recess portion, the lower end surface of the rubber ring is outwards provided with
Have and the mutually matched flanged structure of the recess portion；The lower end surface of second fixing clamp is equipped be engaged into for stop nut in
Recessed structure；
According to another aspect of the invention, it is proposed that a kind of installation tool of communication pipe anti-theft blocking device, comprising: hand
Handle, connecting rod and dismounting matching piece；Wherein,
The upper end of the installation tool is arranged in the handle；
The lower end of the installation tool, the dismounting matching piece and communication pipe above-mentioned is arranged in the dismounting matching piece
Theft-prevention structure shape cooperation in anti-theft blocking device；
The connecting rod connects the upper end and the lower end of the installation tool.
The installation tool of communication pipe anti-theft blocking device of the invention also includes the following features:
The connecting rod includes center bolt and outer loop bar, and the outer loop bar is penetrated for the center bolt；Wherein, described
The lower end of center bolt has an external screw thread for the center counterbore that can screw in the theft-prevention structure, the lower end of the outer loop bar be equipped with
The inner hole of the head outer profile complementary fit of the theft-prevention structure, the external screw thread and the inner hole constitute the dismounting cooperation
Part；
The installation tool further includes rotary mount, and the rotary mount is fixed on the center by stop nut
The top of screw rod；
Or preferably, it includes: cross bar and concave groove that the dismounting matching piece, which includes: the dismounting matching piece,；Wherein, described
The hemisphere mates of the head protrusions of concave groove and the theft-prevention structure, the cross bar are heavy from the center of the theft-prevention structure
It is rotated after the insertion of hole, is fastened at push-and-pull card slot and is puted forth effort by turn the blocking of device；
It further include communication pipe pore end cap.
By applying the present invention, using pore is filled up after rubber extruded, passing through rubber and pipe using the principle of expansion bolt
Frictional force between wall, plays the role of pipeline obstruction.In addition, installation tool uses unique design, can not simply utilize
Conventional tool is dismantled, and is not easy to be replicated, and ensure that communication pipe is not stolen, and manages simple and easy, saving
Cost.
Detailed description of the invention
Fig. 1 is the main view of communication pipe anti-theft blocking device in the embodiment of the present invention 1；
Fig. 2 is the A-A cross section view of blocking device shown in FIG. 1；
Fig. 3 is the perspective view of blocking device shown in FIG. 1；
Fig. 4 is the cross sectional enlarged view on anti-theft bolt head in the embodiment of the present invention 1；
Fig. 5 is the main view of installation tool in the embodiment of the present invention 1；
Fig. 6 is the A-A cross section view of installation tool shown in fig. 5；
Fig. 7 is the perspective view of installation tool shown in fig. 5；
Fig. 8 is the inner hole cross sectional enlarged view of the main external member lower end of installation tool shown in fig. 5；
Fig. 9 is when installing communication pipe anti-theft blocking device of the invention using the installation tool of the embodiment of the present invention 1
Perspective view；
The longitudinal cross section of device when Figure 10 is installation shown in Fig. 9；
Figure 11 is the longitudinal cross section of communication pipe anti-theft blocking device in the embodiment of the present invention 2；
Figure 12 is the longitudinal cross section in the embodiment of the present invention 2 after the installation of communication pipe anti-theft blocking device；
Figure 13 is the top view of anti-theft bolt in the embodiment of the present invention 2；
Figure 14 is the basic block diagram of installation tool in the embodiment of the present invention 2；
Figure 15 is the longitudinal cross section of end cap in an example of the invention；
Figure 16 is the bottom view of end cap in an example of the invention.
Specific embodiment
In order to which the technical features, objects and effects of the invention are more clearly understood, below by embodiment and combine
Attached drawing, the technical solutions of the present invention will be further described.
Embodiment 1
Anti-theft blocking device
Fig. 1-4 is the communication pipe anti-theft blocking device of the embodiment of the present invention 1.Referring specifically to Fig. 2, anti-theft obstruction dress
It sets including the first fixing clamp 1 and the second fixing clamp 2, two fixing clamps 1,2 are coaxially disposed, and rubber ring 3 is arranged co-axially in two
Between a fixing clamp 1 and 2, anti-theft bolt 4 is sequentially worn from the centre bore of the first fixing clamp 1, rubber ring 3 and the second fixing clamp 2
It crosses, the screw rod 6 of anti-theft bolt 4 is equipped with external screw thread, and stop nut 5 is anchored on the screw rod 6 of anti-theft bolt 4 by the external screw thread,
Stop nut 5 is usually the hex nut of standard.Anti-theft bolt 4 includes shoulder 7, in order to enable between blocking device all parts
Engage even closer, 1 upper surface of the first fixing clamp is from center bore to outwards equipped with concave inward structure 8, the lower end surface of shoulder 7
It is matched with the concave inward structure 8；Second fixing clamp, 2 upper surface is from center bore to being outwards provided with recess portion, under rubber ring 3
End face can be equipped with the mutually matched flanged structure 9 of recess portion with 2 upper surface of the second fixing clamp, and this male-female engagement is simultaneously non-limiting
, it can also be mutually matched other arbitrary shapes, such as zigzag or waveform etc.；In addition, the lower end surface of the second fixing clamp 2
Equipped with the concave inward structure 10 being engaged into for hexagonal stop nut 5.As shown in Figures 3 and 4, the head 12 of anti-theft bolt 4 is square along longitudinal direction
To tool internal thread center counterbore 11 is equipped with, is screwed in for the lower end of the center bolt 21 of installation tool, play fixed installation work
The effect (will be described in detail below) of tool；The head 12 of anti-theft bolt 4 has an outer profile, with the main housing 22 of tool
Lower end 23 Internal periphery (referring specifically to Fig. 8) complementary fit with realize the rotation to 4 both direction of anti-theft bolt (i.e. realize installation and
Disassembly).The outer profile cross section on 4 head 12 of anti-theft bolt is odd-shaped cross section, can not be dismantled to it with existing installation tool,
To realize antitheft effect.Preferably, as shown in figure 4, the odd-shaped cross section be specially it is similar "T"-shaped but have certain radian and in
The shaped cross-section of portion's protrusion；Certainly, relevant technical staff in the field is appreciated that shaped cross-section as shown in Figure 4
And unrestricted, other arbitrary shapes of any non-standard mode, such as the figure of eight or irregular polygon etc., it can fit
With in an embodiment of the present invention, as long as the dismounting matching piece of installation tool is arranged to be complementary the shape of cooperation.
Installation tool
As Fig. 5-8 shows the installation tool of the embodiment of the present invention 1, including center bolt 21 and outer loop bar 22.Center spiral shell
The lower end of bar 21 has external screw thread, and during installation, it is anti-by the external screw thread precession of its lower end that center bolt 21 pierces into outer loop bar 22
In the center counterbore 11 for stealing the head 12 of bolt 4, so that tool is fixedly mounted and antitheft blocking device is sent into the appropriate of pipeline
Position.The upper end of center bolt 21 has rotary mount 24, is fixed in the upper of the 21 of center bolt by stop nut 23
End.Outer loop bar 22 is hollow tubulose, is passed through therebetween for center bolt 21.The upper end of outer loop bar 22 is equipped with handle 26, lower end 23
Bore design be, specific cross sectional shape such as Fig. 8 institute complementary with the outer profile on head 12 of anti-theft bolt 4 of Anti-chock device
Show.For the rotation of control centre's screw rod 21, it is preferable that be fixed with spring 25 in the lower end of rotary mount 24.
Referring to Fig. 9 and 10, during installation, center bolt 21 is inserted into outer loop bar 22, by the company of outer 22 lower end 23 of loop bar
The head for connecing the anti-theft bolt 4 that hole is directed at antitheft blocking device is connected, connect in outer loop bar 22 with antitheft blocking device
Afterwards, the rotary mount 4 for rotating clockwise 21 upper end of center bolt makes the center on 21 precession anti-theft bolt of center bolt, 4 head
In counterbore 11, it is fixed on blocking device on outer loop bar 22.Loop bar 22 outside tool after fixation and antitheft blocking device are inserted into
The designated position in the communication pipe of (or reserved) is not had to temporarily, the depth of insertion guarantees that the handle of outer 22 upper end of loop bar of tool is set
It stays in pipeline outer end.After fixed device is pushed into designated position, the handle 26 of outer 22 upper end of loop bar is rotated clockwise, until
It is unable to rotation position, rubber ring 3 is expanded under the action of two fixing clamps 1 and 2, is bonded on securely with the tube wall of communication pipe
Together.Removing installation tool now can be completed installation, i.e. rotation center screw rod counterclockwise 21 up to being separated with blocking device, this
When outer loop bar 22 keep in situ.Take out center bolt 21 after, then by outer loop bar 22 along communication pipe extract, then complete obstruction
The installation of device.
When needing using reserved communication pipe, only installation tool need to be inserted into communication pipe, by the center of installation tool
Screw rod screws in the head 12 of anti-theft bolt 4 clockwise, realizes the fixation of installation tool and blocking device, rotating handle counterclockwise
26, so that the rubber ring 3 of expansion is restored to the original state, installation tool is taken out from communication pipe together with blocking device.Installation is anti-
After stealing blocking device, the pore of communication pipe can install end cap, on the one hand can on the other hand play the work of warning sign with waterproof
With.
Embodiment 2
Anti-theft blocking device
Figure 11-13 is the communication pipe anti-theft blocking device of the embodiment of the present invention 2.Referring specifically to Figure 11, anti-theft resistance
Plug device includes the first fixing clamp 1, the second fixing clamp 2, rubber ring 3, anti-theft bolt 4 and stop nut 5；Its basic structure and peace
Dress mode is same as Example 1, i.e., anti-theft bolt 4 is suitable from the centre bore of the first fixing clamp 1, rubber ring 3 and the second fixing clamp 2
Sequence passes through, and the screw rod 6 of anti-theft bolt 4 is equipped with external screw thread, and stop nut 5 is anchored on the screw rod 6 of anti-theft bolt 4 by the external screw thread
On.It is other be so that the concave-convex fit structure for engaging even closer between blocking device all parts is also similar to that embodiment 1,
Details are not described herein.
Slightly distinguishing with embodiment 1 to be, in the embodiment of the present invention 2,12 structure of head of anti-theft bolt 4 is using different
Set-up mode.Specifically, referring to Figure 11-13, in the embodiment of the present invention 2, the head 12 of anti-theft bolt 4 is equipped with push-and-pull card slot 13
Put forth effort device 14 with turn.In Figure 11, the longitudinal sectional shape of 12 center counterbore of head is inverse-T-shaped, the push-and-pull composition of card slot 13
The inverse-T-shaped bottom, it is the block that 13 top of push-and-pull card slot is arranged in that turn, which puts forth effort device 14 then,；In addition, center counterbore
Bottom centre is additionally provided with the hemisphere of protrusion.Figure 13 is the top view of anti-theft bolt 4 in the embodiment of the present invention 2, it can be seen that center
Counterbore is in the figure of eight substantially, pushes and pulls card slot 13 and the gabarit that device 14 constitutes the figure of eight waist is puted forth effort in turn, raised
Hemisphere 15 is arranged at the figure of eight center.Mainly with installation tool cooperating, specifically match on the head 12 of anti-theft bolt 4
The description as detailed below to installation tool of conjunction mode.
Pass through after the communication pipe anti-theft blocking device of the embodiment of the present invention 2 is placed into installation site referring to Figure 12
Stop nut 5 is screwed, rubber ring 3 is expanded under the action of two fixing clamps 1 and 2, engaged securely with the tube wall of communication pipe
Together.
Installation tool
As Figure 14 shows the installation tool of the embodiment of the present invention 2, including T-type hand handle 27, cross bar 28 and concave groove 29；Its
In, (herein and following upper and lower side is corresponding with embodiment 1, can rotate Figure 14 for the upper end of the composition installation tool of T-type hand handle 27
Determined after 180 degree), for holding and rotation is had an effect；Cross bar 28 and concave groove 29 are located at the column lower end of installation tool.Concave groove
29 match with the hemisphere 15 of 4 head of anti-theft bolt, 12 protrusions, are limited by hemisphere 15 and stop common "T"-shaped portion
The insertion (for antitheft, avoiding being dismantled by common shape component) of part；After cross bar 28 is inserted into from the both ends of the center counterbore figure of eight
Rotation is fastened at push-and-pull card slot 13 and is puted forth effort by turn the blocking of device 14；Rotation T-type hand handle 27 is continued thereafter with, by cross
Bar 28 puts forth effort device 14 to turn and applies pressure, drives anti-theft bolt 4 to rotate in clockwise and counterclockwise directions, to realize resistance
The installation and removal of plug device.
After installing antitheft blocking device, the pore of communication pipe can install end cap, and Figure 15-16 illustrates a kind of exemplary
End cover structure.Wherein, end cover surface diameter is greater than pipe diameter, and end cover body is slightly less than internal diameter of the pipeline, by end cover body
It will be inserted into pipeline, the annular projection of main body outer rim can increase the frictional force of end cap and pipeline, not easily to fall off.End cover surface is writeable
On the one hand warning poster reduces the contact surface of end cap rubber and water, preferably waterproof and extension equipment life；On the other hand it rises
It is acted on to anti-theft warning sign.
The antitheft blocking device structure of communication pipe of the present invention is simple, installation and it is convenient to remove, installation and taking-up need using
The tool of special shape, plays anti-theft function, has effectively saved underground piping resource,
The embodiment of the present invention is described with above attached drawing, but invention is not limited to above-mentioned specific reality
Mode is applied, previously described embodiment is only schematical, rather than limiting the invention, the ordinary skill of this field
Personnel under the inspiration of the present invention, in the case where not departing from present inventive concept and scope of the claimed protection, allow to do
A variety of modifications out, all belong to the scope of protection of the present invention within.
Claims (10)
1. a kind of communication pipe anti-theft blocking device, which is characterized in that the communication pipe anti-theft blocking device includes:
First fixing clamp；
Second fixing clamp, second fixing clamp are coaxially disposed with first fixing clamp；
Rubber ring, the rubber ring is placed coaxially between first fixing clamp and second fixing clamp, and is being clamped
It is expanded under the action of power；
Anti-theft bolt, the anti-theft bolt are passed through from first fixing clamp, the rubber ring and second fixing clamp,
Its screw rod lower end has external screw thread, and upper end is equipped with head；
Stop nut, the stop nut are anchored on the screw rod；
The head is equipped with center counterbore, and the head and the center counterbore, which are constituted, dismounts the communication pipe anti-theft obstruction
The theft-prevention structure of device.
2. communication pipe anti-theft blocking device according to claim 1, which is characterized in that in the theft-prevention structure, institute
Center counterbore is stated with internal screw thread, the head has outer profile, and the cross section of the outer profile is odd-shaped cross section.
3. communication pipe anti-theft blocking device according to claim 1, which is characterized in that in the theft-prevention structure, institute
It states head and puts forth effort device equipped with push-and-pull card slot and turn, the longitudinal sectional shape of the center counterbore is inverse-T-shaped, the push-and-pull
Card slot constitutes the inverse-T-shaped bottom, and it is the block being arranged in above the push-and-pull card slot that device is puted forth effort in the turn, described
Center counterbore base center is equipped with the hemisphere of protrusion.
4. communication pipe anti-theft blocking device according to claim 1, which is characterized in that the anti-theft bolt upper end is set
There is shoulder, first fixing clamp upper surface is from center bore to the shoulder outwards equipped with concave inward structure, with the anti-theft bolt
Portion matches.
5. communication pipe anti-theft blocking device according to claim 1, which is characterized in that second fixing clamp upper end
Face is equipped with and the mutually matched flange of the recess portion from center bore to recess portion, the lower end surface of the rubber ring is outwards provided with
Structure；The lower end surface of second fixing clamp is equipped with the concave inward structure being engaged into for stop nut.
6. a kind of installation tool of communication pipe anti-theft blocking device, which is characterized in that the installation tool includes: handle,
Connecting rod and dismounting matching piece；Wherein,
The upper end of the installation tool is arranged in the handle；
The dismounting matching piece is arranged in the lower end of the installation tool, the dismounting matching piece with it is any in claim 1-5
Theft-prevention structure shape cooperation in communication pipe anti-theft blocking device described in；
The connecting rod connects the upper end and the lower end of the installation tool.
7. the installation tool of communication pipe anti-theft blocking device according to claim 6, which is characterized in that the connection
Bar includes center bolt and outer loop bar, and the outer loop bar is penetrated for the center bolt；Wherein,
The lower end of the center bolt has the external screw thread for the center counterbore that can screw in the theft-prevention structure, under the outer loop bar
End is equipped with the inner hole with the head outer profile complementary fit of the theft-prevention structure, tears open described in the external screw thread and inner hole composition
Assemble component.
8. the installation tool of communication pipe anti-theft blocking device according to claim 7, which is characterized in that the installation
Tool further includes rotary mount, and the rotary mount is fixed on the top of the center bolt by stop nut.
9. the installation tool of communication pipe anti-theft blocking device according to claim 6, which is characterized in that the dismounting
Matching piece includes: cross bar and concave groove；Wherein, the hemisphere of the head protrusions of the concave groove and the theft-prevention structure matches
It closes, the cross bar rotates after the insertion of the center counterbore of the theft-prevention structure, is fastened at push-and-pull card slot and is puted forth effort by turn
The blocking of device.
10. according to the installation tool of the described in any item communication pipe anti-theft blocking devices of claim 6 to 9, feature exists
In further including communication pipe pore end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510526958.9A CN106481643B (en) | 2015-08-25 | 2015-08-25 | A kind of communication pipe anti-theft blocking device and its installation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510526958.9A CN106481643B (en) | 2015-08-25 | 2015-08-25 | A kind of communication pipe anti-theft blocking device and its installation tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106481643A CN106481643A (en) | 2017-03-08 |
| CN106481643B true CN106481643B (en) | 2018-12-07 |
Family
ID=58234001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510526958.9A Active CN106481643B (en) | 2015-08-25 | 2015-08-25 | A kind of communication pipe anti-theft blocking device and its installation tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106481643B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542747B (en) * | 2017-09-01 | 2019-05-07 | 宁波正宇紧固件有限公司 | A kind of high-strength vehicle fastener |
| CN109838447B (en) * | 2019-01-30 | 2021-02-09 | 胡伟明 | Multifunctional integrated device based on communication pipeline anti-theft |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068937A1 (en) * | 2005-12-16 | 2007-06-21 | Airbus Uk Limited | A fastener assembly |
| WO2010034633A1 (en) * | 2008-09-26 | 2010-04-01 | Areva Np | Connecting device for connecting a guide tube to a lower end nozzle in a nuclear fuel assembly |
| CN201507534U (en) * | 2009-08-31 | 2010-06-16 | 孙政 | Detachable anti-theft fastening assembly |
| CN203906514U (en) * | 2014-06-10 | 2014-10-29 | 刘海燕 | Screw of anti-theft fixing device |
| CN204458773U (en) * | 2015-02-05 | 2015-07-08 | 聂万利 | Anti-theft protective jacket |
| CN205064532U (en) * | 2015-08-25 | 2016-03-02 | 中国移动通信集团贵州有限公司 | Communication pipe theftproof is with blocking device and mounting tool thereof |
-
2015
- 2015-08-25 CN CN201510526958.9A patent/CN106481643B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068937A1 (en) * | 2005-12-16 | 2007-06-21 | Airbus Uk Limited | A fastener assembly |
| WO2010034633A1 (en) * | 2008-09-26 | 2010-04-01 | Areva Np | Connecting device for connecting a guide tube to a lower end nozzle in a nuclear fuel assembly |
| CN201507534U (en) * | 2009-08-31 | 2010-06-16 | 孙政 | Detachable anti-theft fastening assembly |
| CN203906514U (en) * | 2014-06-10 | 2014-10-29 | 刘海燕 | Screw of anti-theft fixing device |
| CN204458773U (en) * | 2015-02-05 | 2015-07-08 | 聂万利 | Anti-theft protective jacket |
| CN205064532U (en) * | 2015-08-25 | 2016-03-02 | 中国移动通信集团贵州有限公司 | Communication pipe theftproof is with blocking device and mounting tool thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106481643A (en) | 2017-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106481643B (en) | A kind of communication pipe anti-theft blocking device and its installation tool | |
| US9121243B1 (en) | Multifunction well plug dual locking elements | |
| US9890566B1 (en) | Theft proof ground vault and locking lid | |
| US20130269399A1 (en) | Storm Grate Lock Device and Method of Use | |
| CN205064532U (en) | Communication pipe theftproof is with blocking device and mounting tool thereof | |
| WO2008154568A1 (en) | Semi-permanent bollard | |
| US6209370B1 (en) | Non damaging key lock | |
| CN100422573C (en) | Locking device and method for catch basin and manhole covers | |
| US20150345658A1 (en) | Tamper resistant fittings | |
| CN207603000U (en) | A kind of distribution electric installation | |
| CN203488527U (en) | Anti-theft nut | |
| GB2297781A (en) | Retractable post assembly | |
| CN205478784U (en) | Antitheft screw and special screwdriver thereof | |
| CN201786902U (en) | Theftproof bolt | |
| CN218294132U (en) | Nut with anti-theft function | |
| JPH0660651B2 (en) | Iron lid mounting device for iron frame | |
| CN2372497Y (en) | Theft-proof nut and complete set of tool | |
| CN204715409U (en) | Reinforced inspection well cover | |
| CN103074896B (en) | Road holding device | |
| CN201355761Y (en) | Pipeline buried cable alarm | |
| US20110277597A1 (en) | Piercing cap drive socket | |
| JP2008075296A (en) | Scaffolding bolt unit | |
| CN210716243U (en) | Anti-theft gate for petroleum equipment | |
| CN213774866U (en) | Lockset for underground switch equipment of coal mine | |
| KR100919283B1 (en) | Manhole fastening apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |