CN205064532U - Communication pipe theftproof is with blocking device and mounting tool thereof - Google Patents
Communication pipe theftproof is with blocking device and mounting tool thereof Download PDFInfo
- Publication number
- CN205064532U CN205064532U CN201520645472.2U CN201520645472U CN205064532U CN 205064532 U CN205064532 U CN 205064532U CN 201520645472 U CN201520645472 U CN 201520645472U CN 205064532 U CN205064532 U CN 205064532U
- Authority
- CN
- China
- Prior art keywords
- communication pipe
- blocking device
- theft
- center
- fixing clamp
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses a communication pipe theftproof is with blocking the device, include: first fixation clamp, the second fixation clamp that sets up coaxially with first fixation clamp, set up the rubber circle between first fixation clamp and second fixation clamp coaxially, it is the expandable under the effect of clamp force, from the theftproof bolt that first fixation clamp, rubber circle and second fixation clamp passed in proper order, its screw rod lower extreme has the external screw thread, and the upper end is equipped with the head, and the stop nut of fastening on the screw rod of theftproof bolt, the head is equipped with central counter bore, the head with the center counter bore constitutes the dismouting the communication pipe theftproof is with the theftproof structure of blocking the device. The utility model also discloses a communication pipe theftproof is with the mounting tool that blocks the device.
Description
Technical field
The utility model relates to the blocking device of communication pipe, and particularly a kind of communication pipe is anti-usurps blocking device and setting tool thereof.
Background technique
Along with the continuous acceleration of domestic city construction process and communication construction demand, communication infrastructure resource becomes day by day rare and valuable.Communication pipe is most important basic resource in transmission network, and the underground being mainly used in optical cable is laid.Urban road construction, once after completing, carries out municipal administration excavation and pipe laying again by being difficult to, and the pipeline laid early stage or reserved and pore resource are of great rarity, and are necessary to carry out effective resource management to it.
Pore resource shortage at present for communication pipe effectively manages and salvo, there is larger resource management risk, and pipeline is occupied and situation that is that usurp is commonplace.To the modal mode taking to lock exactly on pipeline manhole lid of the management of pipeline pore, still there is stolen risk in this kind of mode, owner cannot use reserved conduit resource, causes waste, and business increases also to be needed to increase investment.
Model utility content
In order to evade above-mentioned risk, the utility model proposes the solution that a kind of Security is higher, by pore blocking device, carry out the management of pore resource, can blocking device be opened just only have by the specific instrument of the utility model.
According to an aspect of the present utility model, propose a kind of communication pipe and prevent usurping blocking device, comprising:
First fixing clamp;
Second fixing clamp, described second fixing clamp and described first fixing clamp are arranged coaxially;
Rubber ring, described rubber ring is arranged between described first fixing clamp and described second fixing clamp coaxially, and expands under the effect of clamping force;
Anti-theft bolt, described anti-theft bolt passes through from described first fixing clamp, described rubber ring and described second fixing clamp, and its screw rod lower end has outside thread, and upper end is provided with head;
Stop nut, described stop nut is anchored on described screw rod; It is characterized in that,
Described head is provided with center counterbore, and described head and described center counterbore form communication pipe described in dismounting and prevent the theft-prevention structure usurping blocking device.
Communication pipe of the present utility model prevents that usurping blocking device also comprises following feature:
In described theft-prevention structure, described center counterbore has internal thread, and described head has external frame, and the cross section of described external frame is odd-shaped cross section;
Or preferably, in described theft-prevention structure, described head is provided with push-and-pull draw-in groove and power apparatus in turn, the longitudinal sectional shape of described center counterbore is inverse-T-shaped, described push-and-pull draw-in groove forms described inverse-T-shaped bottom, it is be arranged on the block above described push-and-pull draw-in groove that power apparatus in described turn, and counterbore base center, described center is provided with protruding hemisphere;
Described anti-theft bolt upper end is provided with shoulder, and described first fixing clamp upper-end surface is provided with concave inward structure radially outwardly from center hole, matches with the shoulder of described anti-theft bolt;
Described second fixing clamp upper-end surface is provided with recess radially outwardly from center hole, and the lower end surface of described rubber ring is provided with the flanged structure cooperatively interacted with described recess; The lower end surface of described second fixing clamp is provided with the concave inward structure be engaged into for stop nut;
According to another aspect of the present utility model, propose the setting tool that a kind of communication pipe prevents usurping blocking device, model utility comprises: handle, connecting rod and dismounting counterpart; Wherein,
Described handle is arranged on the upper end of described setting tool;
Described dismounting counterpart is arranged on the lower end of described setting tool, and described dismounting counterpart and aforesaid communication pipe prevent the theft-prevention structure form fit usurped in blocking device;
Described connecting rod connects the described upper end of described setting tool and described lower end.
Communication pipe of the present utility model prevents that the setting tool usurping blocking device also comprises following feature:
Described connecting rod comprises center bolt and outer loop bar, and described outer loop bar penetrates for described center bolt; Wherein, the lower end of described center bolt has the outside thread of the center counterbore that can screw in described theft-prevention structure, the lower end of described outer loop bar is provided with the endoporus with the head external frame complementary fit of described theft-prevention structure, and described outside thread and described endoporus form described dismounting counterpart;
Described setting tool also comprises rotary mount, and described rotary mount is fixed on the top of described center bolt by lock nut;
Or preferably, described dismounting counterpart comprises: described dismounting counterpart comprises: cross bar and concave groove; Wherein, described concave groove matches with the hemisphere of the head protrusions of described theft-prevention structure, and described cross bar rotates after the center counterbore of described theft-prevention structure inserts, and is fastened on push-and-pull draw-in groove place and is subject to the stop that power apparatus in turn;
Also comprise communication pipe pore end cap.
By implementing the utility model, adopting the principle of EXPANSION ANCHOR BOLTS, filling up pore after utilizing rubber extruded, by the frictional force between rubber and tube wall, play the effect of pipeline obstruction.In addition, setting tool adopts unique design, cannot simply utilize conventional tool to dismantle, and be not easy to be replicated, ensure that communication pipe is not stolen, manage simple, saved cost.
Accompanying drawing explanation
Fig. 1 is the plan view that in the utility model embodiment 1, communication pipe prevents usurping blocking device;
The A-A cross section view that Fig. 2 is the blocking device shown in Fig. 1;
Fig. 3 is the stereogram of the blocking device shown in Fig. 1;
Fig. 4 is the cross sectional enlarged view of anti-theft bolt head in the utility model embodiment 1;
Fig. 5 is the plan view of setting tool in the utility model embodiment 1;
The A-A cross section view that Fig. 6 is the setting tool shown in Fig. 5;
Fig. 7 is the stereogram of the setting tool shown in Fig. 5;
The endoporus cross sectional enlarged view of the main external member lower end that Fig. 8 is the setting tool shown in Fig. 5;
Fig. 9 is the stereogram using the setting tool of the utility model embodiment 1 to install communication pipe of the present utility model to prevent when usurping blocking device;
Figure 10 is the longitudinal cross section of the installation timer shown in Fig. 9;
Figure 11 is the longitudinal cross section that in the utility model embodiment 2, communication pipe prevents usurping blocking device;
Figure 12 is that in the utility model embodiment 2, communication pipe prevents the longitudinal cross section after usurping blocking device installation;
Figure 13 is the plan view of anti-theft bolt in the utility model embodiment 2;
Figure 14 is the basic block diagram of setting tool in the utility model embodiment 2;
Figure 15 is the longitudinal cross section of end cap in an example of the present utility model;
Figure 16 is the worm's eye view of end cap in an example of the present utility model.
Embodiment
In order to the understanding clearly of technical characteristics of the present utility model, object and effect, below by embodiment also by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1
Prevent usurping blocking device
Fig. 1-4 is that the communication pipe of the utility model embodiment 1 is prevented usurping blocking device.Specifically see Fig. 2, prevent that usurping blocking device comprises the first fixing clamp 1 and the second fixing clamp 2, two fixing clamps 1,2 are arranged coaxially, rubber ring 3 is coaxially arranged between two fixing clamps 1 and 2, and anti-theft bolt 4 passes through from the center hole of the first fixing clamp 1, rubber ring 3 and the second fixing clamp 2, and the screw rod 6 of anti-theft bolt 4 is provided with outside thread, stop nut 5 is anchored on the screw rod 6 of anti-theft bolt 4 by this outside thread, and stop nut 5 is generally the hexagon nut of standard.Anti-theft bolt 4 comprises shoulder 7, and in order to make to engage tightr between blocking device all parts, the first fixing clamp 1 upper-end surface is provided with concave inward structure 8 radially outwardly from center hole, matches with this concave inward structure 8 in the lower end surface of shoulder 7; Second fixing clamp 2 upper-end surface is provided with recess radially outwardly from center hole, the lower end surface of rubber ring 3 can be provided with the flanged structure 9 cooperatively interacted with the recess of the second fixing clamp 2 upper-end surface, this male-female engagement is also nonrestrictive, also can be other arbitrary shape cooperatively interacted, such as zigzag fashion or waveform etc.; In addition, the lower end surface of the second fixing clamp 2 is provided with the concave inward structure 10 be engaged into for hexagonal stop nut 5.As shown in Figures 3 and 4, the head 12 of anti-theft bolt 4 is provided with tool female center counterbore 11 along the longitudinal direction, and the lower end for the center bolt 21 of setting tool screws in, and plays the effect (will be described in detail later) of fixed installation instrument; The head 12 of anti-theft bolt 4 has an external frame, with lower end 23 Internal periphery (specifically see Fig. 8) complementary fit of the main overcoat 22 of instrument to realize the rotation (namely realizing mounting and dismounting) to anti-theft bolt 4 both direction.The external frame cross section of anti-theft bolt 4 head 12 is odd-shaped cross section, cannot dismantle with existing setting tool to it, to realize antitheft effect.Preferably, as shown in Figure 4, this odd-shaped cross section be specially similar "T"-shaped but there is certain radian and middle part protrude shaped cross-section; Certainly, relevant technical staff in the field is appreciated that, shaped cross-section is as shown in Figure 4 also nonrestrictive, other arbitrary shape of any non-standard mode, the such as figure of eight or irregular polygon etc., all be applicable in embodiment of the present utility model, as long as the shape with its complementary fit is arranged to by the dismounting counterpart of setting tool.
Setting tool
As Fig. 5-8 shows the setting tool of the utility model embodiment 1, comprise center bolt 21 and outer loop bar 22.The lower end of center bolt 21 has outside thread, when mounted, center bolt 21 pierces in the center counterbore 11 of outer loop bar 22 by the head 12 of the outside thread precession anti-theft bolt 4 of its lower end, to fixedly mount instrument and antitheft blocking device to be sent into the appropriate location of pipeline.The upper end of center bolt 21 has rotary mount 24, is fixed in the upper end of 21 of center bolt by lock nut 23.Outer loop bar 22 is the tubulose of hollow, passes therebetween for center bolt 21.The upper end of outer loop bar 22 is provided with handle 26, and the bore design of lower end 23 is complementary with the external frame of the head 12 of the anti-theft bolt 4 of Anti-chock device, and concrete sectional shape as shown in Figure 8.In order to the rotation of control centre's screw rod 21, preferably, spring 25 is fixed with in the lower end of rotary mount 24.
See Fig. 9 and 10, when mounted, center bolt 21 is inserted in outer loop bar 22, the head attachment hole of outer loop bar 22 lower end 23 being aimed at the anti-theft bolt 4 of antitheft blocking device is attached thereto and connects, after loop bar 22 is connected with antitheft blocking device outside, rotate clockwise the rotary mount 4 of center bolt 21 upper end, make, in the center counterbore 11 of center bolt 21 precession anti-theft bolt 4 head, blocking device to be fixed on outer loop bar 22.The outer loop bar 22 of instrument after fixing and antitheft blocking device being inserted temporarily need not specified position in the communication pipe of (or reserved), and the degree of depth of insertion ensures that the handle of loop bar 22 upper end outside instrument is put and stays in pipeline outer end.After stationary device is pushed into specified position, the handle 26 of outer loop bar 22 upper end that turns clockwise, until can not rotational position, rubber ring 3 expands under the effect of two fixing clamps 1 and 2, is bonded together securely with the tube wall of communication pipe.Present dismounting setting tool can complete installation, is namely rotated counterclockwise center bolt 21 until be separated with blocking device, and now outer loop bar 22 keeps original position.After taking out center bolt 21, outer loop bar 22 is extracted along communication pipe, then complete the installation of blocking device.
When needing to use reserved communication pipe, only setting tool need be inserted communication pipe, the center bolt of setting tool is screwed in clockwise the head 12 of anti-theft bolt 4, realize the fixing of setting tool and blocking device, be rotated counterclockwise handle 26, the rubber ring 3 of expansion is restored to the original state, setting tool is taken out together with blocking device from communication pipe.After installing antitheft blocking device, the pore of communication pipe can install end cap, on the one hand can waterproof, plays the effect of warning sign on the other hand.
Embodiment 2
Prevent usurping blocking device
Figure 11-13 is that the communication pipe of the utility model embodiment 2 is prevented usurping blocking device.Specifically see Figure 11, prevent that usurping blocking device comprises the first fixing clamp 1, second fixing clamp 2, rubber ring 3, anti-theft bolt 4 and stop nut 5; Its basic structure and mounting type identical with embodiment 1, namely anti-theft bolt 4 passes through from the center hole of the first fixing clamp 1, rubber ring 3 and the second fixing clamp 2, the screw rod 6 of anti-theft bolt 4 is provided with outside thread, and stop nut 5 is anchored on the screw rod 6 of anti-theft bolt 4 by this outside thread.Other for make to engage between blocking device all parts more closely concave-convex fit structure be also similar to embodiment 1, do not repeat them here.
Slightly distinguishing with embodiment 1, in the utility model embodiment 2, head 12 structure of anti-theft bolt 4 adopts different set-up modes.Particularly, see Figure 11-13, in the utility model embodiment 2, the head 12 of anti-theft bolt 4 is provided with push-and-pull draw-in groove 13 and power apparatus 14 in turn.In Figure 11, the longitudinal sectional shape of head 12 center counterbore is inverse-T-shaped, and push-and-pull draw-in groove 13 forms described inverse-T-shaped bottom, and it is be arranged on the block above push-and-pull draw-in groove 13 that power apparatus 14 in turn; In addition, counterbore base center in center is also provided with protruding hemisphere.Figure 13 is the plan view of anti-theft bolt 4 in the utility model embodiment 2, can find out that center counterbore is the figure of eight substantially, the gabarit that power apparatus 14 forms described figure of eight waist in push-and-pull draw-in groove 13 and turn, and protruding hemisphere 15 is arranged on described figure of eight center.Main and the setting tool cooperating of the head 12 of anti-theft bolt 4, concrete fit system refers to hereafter to the description of setting tool.
See Figure 12, after the communication pipe of the utility model embodiment 2 prevents that usurping blocking device is placed into mounting point, by screwing stop nut 5, rubber ring 3 expands under the effect of two fixing clamps 1 and 2, is bonded together securely with the tube wall of communication pipe.
Setting tool
As Figure 14 shows the setting tool of the utility model embodiment 2, comprise T-shaped hand 27, cross bar 28 and concave groove 29; Wherein, T-shaped hand forms the upper end (upper and lower end and is hereinafter corresponding with embodiment 1, determines after Figure 14 can being revolved turnback) of setting tool herein 27, has an effect for gripping and rotation; Cross bar 28 and concave groove 29 are positioned at the column lower end of setting tool.Concave groove 29 matches with the hemisphere 15 of anti-theft bolt 4 head 12 protrusions, is undertaken spacing and stop the insertion (for antitheft, avoiding being dismantled by common shape parts) of common "T"-shaped parts by hemisphere 15; Cross bar 28 rotates after inserting from the two ends of the center counterbore figure of eight, is fastened on push-and-pull draw-in groove 13 place and is subject to the stop that power apparatus 14 in turn; Continue subsequently to rotate T-shaped hand 27, power apparatus 14 by cross bar 28 to turn and apply pressure, drive anti-theft bolt 4 to rotate clockwise or counterclockwise, thus realize the installation and removal of blocking 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, end cover body will be inserted in pipeline, and the annular projection of main body outer rim can increase the frictional force of end cap and pipeline, difficult drop-off.End cover surface can write warning poster, reduces the surface of contact of end cap rubber and water on the one hand, waterproof and the extension device life-span better; Play on the other hand and prevent usurping warning sign effect.
The antitheft blocking device structure of the utility model communication pipe is simple, installs and convenient to remove, installs and takes out the instrument needing use special shape, playing anti-theft function, effectively saved under ground piping resource,
By reference to the accompanying drawings embodiment of the present utility model is described above; but model utility is not limited to above-mentioned embodiment; previously described mode of execution is only schematic; instead of to restriction of the present utility model; those of ordinary skill in the art is under enlightenment of the present utility model; when not departing from the scope that the utility model aim and claim are protected, allowing to make multiple modification, all belonging within protection domain of the present utility model.
Claims (10)
1. communication pipe is anti-usurps a blocking device, and it is characterized in that, described communication pipe prevents that usurping blocking device comprises:
First fixing clamp;
Second fixing clamp, described second fixing clamp and described first fixing clamp are arranged coaxially;
Rubber ring, described rubber ring is arranged between described first fixing clamp and described second fixing clamp coaxially, and expands under the effect of clamping force;
Anti-theft bolt, described anti-theft bolt passes through from described first fixing clamp, described rubber ring and described second fixing clamp, and its screw rod lower end has outside thread, and upper end is provided with head;
Stop nut, described stop nut is anchored on described screw rod;
Described head is provided with center counterbore, and described head and described center counterbore form communication pipe described in dismounting and prevent the theft-prevention structure usurping blocking device.
2. communication pipe according to claim 1 is anti-usurps blocking device, and it is characterized in that, in described theft-prevention structure, described center counterbore has internal thread, and described head has external frame, and the cross section of described external frame is odd-shaped cross section.
3. communication pipe according to claim 1 is anti-usurps blocking device, it is characterized in that, in described theft-prevention structure, described head is provided with push-and-pull draw-in groove and power apparatus in turn, the longitudinal sectional shape of described center counterbore is inverse-T-shaped, described push-and-pull draw-in groove forms described inverse-T-shaped bottom, and it is be arranged on the block above described push-and-pull draw-in groove that power apparatus in described turn, and counterbore base center, described center is provided with protruding hemisphere.
4. communication pipe according to claim 1 is anti-usurps blocking device, and it is characterized in that, described anti-theft bolt upper end is provided with shoulder, and described first fixing clamp upper-end surface is provided with concave inward structure radially outwardly from center hole, matches with the shoulder of described anti-theft bolt.
5. communication pipe according to claim 1 is anti-usurps blocking device, and it is characterized in that, described second fixing clamp upper-end surface is provided with recess radially outwardly from center hole, and the lower end surface of described rubber ring is provided with the flanged structure cooperatively interacted with described recess; The lower end surface of described second fixing clamp is provided with the concave inward structure be engaged into for stop nut.
6. communication pipe prevents the setting tool usurping blocking device, it is characterized in that, described setting tool comprises: handle, connecting rod and dismounting counterpart; Wherein,
Described handle is arranged on the upper end of described setting tool;
Described dismounting counterpart is arranged on the lower end of described setting tool, and described dismounting counterpart and the communication pipe according to any one of claim 1-5 prevent the theft-prevention structure form fit usurped in blocking device;
Described connecting rod connects the described upper end of described setting tool and described lower end.
7. communication pipe according to claim 6 prevents the setting tool usurping blocking device, it is characterized in that, described connecting rod comprises center bolt and outer loop bar, and described outer loop bar penetrates for described center bolt; Wherein,
The lower end of described center bolt has the outside thread of the center counterbore that can screw in described theft-prevention structure, the lower end of described outer loop bar is provided with the endoporus with the head external frame complementary fit of described theft-prevention structure, and described outside thread and described endoporus form described dismounting counterpart.
8. communication pipe according to claim 7 prevents the setting tool usurping blocking device, it is characterized in that, described setting tool also comprises rotary mount, and described rotary mount is fixed on the top of described center bolt by lock nut.
9. communication pipe according to claim 6 prevents the setting tool usurping blocking device, it is characterized in that, described dismounting counterpart comprises: cross bar and concave groove; Wherein, described concave groove matches with the hemisphere of the head protrusions of described theft-prevention structure, and described cross bar rotates after the center counterbore of described theft-prevention structure inserts, and is fastened on push-and-pull draw-in groove place and is subject to the stop that power apparatus in turn.
10. the communication pipe according to any one of claim 6 to 9 prevents the setting tool usurping blocking device, it is characterized in that, also comprises communication pipe pore end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645472.2U CN205064532U (en) | 2015-08-25 | 2015-08-25 | Communication pipe theftproof is with blocking device and mounting tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645472.2U CN205064532U (en) | 2015-08-25 | 2015-08-25 | Communication pipe theftproof is with blocking device and mounting tool thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064532U true CN205064532U (en) | 2016-03-02 |
Family
ID=55391094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520645472.2U Withdrawn - After Issue CN205064532U (en) | 2015-08-25 | 2015-08-25 | Communication pipe theftproof is with blocking device and mounting tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481643A (en) * | 2015-08-25 | 2017-03-08 | 中国移动通信集团贵州有限公司 | A kind of communication pipe tamper-proof blocking device and its installation tool |
-
2015
- 2015-08-25 CN CN201520645472.2U patent/CN205064532U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481643A (en) * | 2015-08-25 | 2017-03-08 | 中国移动通信集团贵州有限公司 | A kind of communication pipe tamper-proof blocking device and its installation tool |
| CN106481643B (en) * | 2015-08-25 | 2018-12-07 | 中国移动通信集团贵州有限公司 | A kind of communication pipe anti-theft blocking device and its installation tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205064532U (en) | Communication pipe theftproof is with blocking device and mounting tool thereof | |
| CN201292538Y (en) | Underground piping anti-stealing manhole cover | |
| CN104480968B (en) | Well lid messaging switch warning system and alarm method | |
| CN106481643B (en) | A kind of communication pipe anti-theft blocking device and its installation tool | |
| CN207194025U (en) | A kind of anti-stealing manhole cover | |
| CN102086711B (en) | Safety device for preventing people from climbing up electric concrete poles by mistake | |
| CN202659199U (en) | Anti-theft device for oil producing wellhead | |
| CN202582514U (en) | Surrounding rock bed separation displacement monitor | |
| CN109826236B (en) | Adjustable protection well lid arranged in well | |
| CN201517548U (en) | Anti-theft fastening device | |
| CN211648755U (en) | Novel anti-theft bolt | |
| CN207714372U (en) | Pre-embedded bolt, the pre-buried prefabricated piping lane for hanging nail | |
| JP4974625B2 (en) | Scaffolding bolt unit | |
| CN109838447B (en) | Multifunctional integrated device based on communication pipeline anti-theft | |
| CN204982954U (en) | Screw locking's theftproof well lid | |
| CN201355761Y (en) | Pipeline buried cable alarm | |
| CN202395064U (en) | Anti-theft alarm for storage battery | |
| JP3730608B2 (en) | Single tube mounting lamp | |
| CN215807113U (en) | Urban pipe gallery construction seismic support with high stability performance | |
| CN218521918U (en) | Municipal administration sewage well lid | |
| CN217651777U (en) | Preset anchoring structure convenient to disassemble | |
| CN207215670U (en) | The impervious detection means in section of jurisdiction | |
| CN220469543U (en) | Traffic engineering construction protector | |
| CN213452069U (en) | Municipal water supply and drainage energy-saving mounting structure | |
| CN210716243U (en) | Anti-theft gate for petroleum equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20181207 |