CN201460376U - Permanent iron tower anti-thief and anti-climbing device - Google Patents

Permanent iron tower anti-thief and anti-climbing device Download PDF

Info

Publication number
CN201460376U
CN201460376U CN200920087521XU CN200920087521U CN201460376U CN 201460376 U CN201460376 U CN 201460376U CN 200920087521X U CN200920087521X U CN 200920087521XU CN 200920087521 U CN200920087521 U CN 200920087521U CN 201460376 U CN201460376 U CN 201460376U
Authority
CN
China
Prior art keywords
sheet
rotating shaft
fan sheet
fan
fan blade
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.)
Expired - Fee Related
Application number
CN200920087521XU
Other languages
Chinese (zh)
Inventor
江忠旭
熊新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Qintang Science & Technology Development Co Ltd
Original Assignee
Wuhan Qintang Science & Technology Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Qintang Science & Technology Development Co Ltd filed Critical Wuhan Qintang Science & Technology Development Co Ltd
Priority to CN200920087521XU priority Critical patent/CN201460376U/en
Application granted granted Critical
Publication of CN201460376U publication Critical patent/CN201460376U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model provides a permanent iron tower anti-thief and anti-climbing device which comprises a maintenance tower pillar, a support column provided with a sheet cutter prick piece, an A fan blade rotating shaft, an A fan blade steel piece, an A fan blade stainless steel piece, a B fan blade steel piece, a B fan blade stainless steel piece, a lock head rotating shaft and a lock head rotating piece; sheet cutter prick belts are stuck on the outer surfaces of the tower pillar and the support column, and connected by a steel strip and an anti-thief bolt; a bracket of an extension anti-creep device is fixed on the outer surface of the maintenance tower pillar by a fastening anti-thief bolt, and a climbing channel arranged at the inner side of the device is closed by the support column provided with the sheet cutter prick piece; the A fan blade steel piece is riveted with the A fan blade stainless steel piece, and the A fan blade rotating shaft is connected on the bracket of the device; the B fan blade steel piece is riveted with the B fan blade stainless steel piece, and a B fan blade rotating shaft is connected on a bracket 6 of the device. The device is simple and practicable, safe and reliable, simple in construction and low in manufacturing cost, and does not influence examination and repair of repairmen who climbs up the tower as well as the whole structure and appearance of the iron tower.

Description

Antitheft, the anti-climbing device of permanent iron tower
Technical field
The utility model relates to the iron tower safety protection equipment, more specifically relates to antitheft, the anti-climbing device of a kind of iron tower.Be applicable to the antitheft, anti-climbing of the iron tower of industries such as electric power, communication, military affairs and shaft tower, building.
Background technology
Electric power, communication shaft tower are that electric power and signal are carried one of most important equipment, are in good state in order to guarantee it, and administrative department sends out the special messenger and makes an inspection tour and safeguard, spends many man power and materials.Yet still have a few peoples for selfish and ignorant idea, the assembly of theft iron tower damages iron tower on the one hand, causes very big threat to electric power safety, brings very big threat also on the other hand the personal safety of oneself.Also have a few peoples in addition by improper modes such as climbing shaft tower, bridge, high buildings, advocate the power of oneself, cause the waste of very big pressure and public resource to public safety.
1, according to relevant specification of country, electric force pole tower is provided with anti-theft measure below 8m, main at present use anti-theft screw carries out antitheft, but this mode has just solved the problem of theft pylon steel, do not possess and threaten function in advance, the possibility that may cause the thief can not steal to give vent to the anger and destroy.
2, some places adopt the way that the iron tower periphery is built protective screening, and construction drops into huge, and the land resources waste is serious, and cause the inconvenience of safeguarding and constructing, and have increased the maintenance cost of protective screening simultaneously again, can not use on a large scale.
3, consider constitutionally stable needs in the power communication iron tower design at present, relatively good climbing objectively utilizes to others easily, impacts for safe power supply and people's lives.
4, Bird's Nest is many on the shaft tower, often has some She Paganta in some mountain area and eats bird and cause line-to-earth fault.
Mainly antitheft, the anti-climbing measure of present domestic shaft tower has:
1, adopt the protection of fence formula, promptly around important pylon, the fence enclosure wall is set, but this mode one is the cost height, the 2nd, fence formula enclosure wall still is easy to cross, and protection effect is bad, and the 3rd, cause the waste of State owned land resource.
2, adopt the infrared exoelectron detecting instrument.This mode is to utilize ultrared sensing when having the people to climb shaft tower, promptly report to the police to Central Control Room, then by the central control room issue an order to the attendant to the scene.This mode is reacted slowly, is a kind of passive type protection, can only play the effect of the information of obtaining basically.And the electronic type device needs often to safeguard for a long time in outdoor application.
3, adopt anti-theft bolt.Promptly when the installing and fixing of iron tower, each support connects and adopts special anti-theft bolt.This bolt has certain effect for antitheft, but function singleness does not possess anti-climbing function.
Summary of the invention
The purpose of this utility model is to be to provide a kind of permanent iron tower antitheft, anti-climbing device.This apparatus structure is simple, and is easy to use, and the unrelated person that prevents that this device can be comprehensive, three-dimensional is climbed iron tower, adopts the anti-locking apparatus of the mounting means that directly is attached at iron tower king-post and pillar to be damaged, and provides access path for the related personnel simultaneously.This device is simple, and is safe and reliable, do not influence the structure and the outward appearance of iron tower.
In order to realize above-mentioned task, by the careful research to tower bar structure, the utility model adopts following technical measures:
A kind of permanent iron tower is antitheft, anti-climbing device. it comprises that iron tower king-post and pillar are provided with sheet shape lancination band, the maintenance king-post is provided with the outer anti-creep device of opening. and this device is by sheet shape lancination band, connect fastening steel bar, iron tower king-post and pillar, anti-theft bolt, the maintenance king-post, the outer anti-creep device support of opening, fastening anti-theft bolt, the pillar of sheet shape lancination sheet is installed, anti-theft bolt, the rotating shaft of A fan sheet, A fan sheet steel disc, A fan sheet stainless steel substrates, the rotating shaft of B fan sheet, B fan sheet steel disc, B fan sheet stainless steel substrates, the tapered end rotating shaft, lock post, the tapered end rotatable lamella, A fans sheet, B fan sheet is formed. and iron tower king-post and pillar are provided with sheet shape lancination band, the maintenance king-post is provided with the outer anti-creep device of opening, it is characterized in that: sheet shape lancination band is close to the external surface of king-post and pillar, by connecting steel bar, anti-theft bolt closely connects. open the anti-creep device support is anchored on the maintenance king-post by anti-theft bolt external surface outward, the outer anti-creep device inboard of opening is by being fixed with the inboard climbing of the pillar sealing passage of sheet shape lancination sheet. and A is passed through in the device outside, B fan sheet sealing outside climbing passage. the fan sheet is by steel disc, stainless steel substrates is formed by connecting by riveted joint, by rotating shaft, the rotating shaft of A.B fan sheet is connected on the outer anti-creep device support A, B fan sheet is respectively around the rotating shaft of A fan sheet, B fan sheet rotating shaft rotation opening and closing .A, the locking of B fan sheet and releasing locking are by the tapered end rotating shaft, lock post, the tapered end rotatable lamella is finished; With the rotating shaft of private key rotational lock head, the tapered end rotatable lamella rotates to the interlock of lock post phase around the tapered end rotating shaft, left side right flat-fan is in the position of locking, the outer passage sealing is by the sealing of A.B fan sheet. with the rotating shaft of private key rotational lock head, the tapered end rotatable lamella leaves lock post around tapered end rotating shaft rotation, and A, B fan sheet is in the position of removing locking, A, B fan sheet is opened outside the rotating shaft of A fan sheet, B fan sheet rotating shaft rotation respectively, and outer passage is opened fully.
Antitheft, the anti-climbing device of a kind of permanent iron tower, its structure and effect are as follows:
A, on the king-post of 6m to 8m at the bottom of the distance tower and pillar, attach sheet shape lancination band, and sheet shape lancination band is fixed on the front surface (except that the maintenance king-post) of king-post and pillar.Sheet shape lancination band adopts 1mm high-strength stainless steel steel disc directly to be stamped to form (the stainless steel steel disc adopts the ordinary skill punching press), and its width and king-post and strut width are suitable, and length cuts randomly, and can easily be installed in the tower body surface.
B, fixed form adopt L section steel bar and high-intensity steel wire, cooperate anti-theft screw, are difficult for cutting off, and also can not destroy sheet shape lancination band fully even cut off some.And sheet shape lancination band is owing to fit together with the tower body surface, and scissors inconvenience is used, and general purpose tool also is difficult to cut off.
C, maintenance king-post are provided with the outer anti-creep device of opening, and the device outside is by A.B fan sheet sealing outside climbing passage.The fan sheet combines by two.Fan sheet inner ring is stamped to form by the 5mm steel plate, and the outer ring then divides the direct riveting of levels on the inner ring steel plate by two 1mm steel discs.There is ratchet the steel disc outer ring, and anti-people touches.An outer anti-creep device just often two fan sheets connects together into an integral body, with a special-purpose lock locking, prevent to climb, and the outer ring gear piece is not thick, flexible, but preventing tool is broken folding off with the fingers and thumb.The inner ring fixed form can resist general hammering.When needing maintenance, lock is opened, two fan-shaped theft protection plates difference more than the half-twist, are reserved access path to the left and right.
D, no matter be the installation of sheet shape lancination band, still outer the fixing of anti-creep device of opening all adopts the mode of colligation and bolted on connection, not be used in perforate on the tower body, can not damage tower body surface and structure fully, installs and fixed form is all considered antitheft requirement.
The utility model compared with prior art has the following advantages and effect:
1, three-dimensional, omnibearing initiative: one, use sheet shape lancination band attach and are installed on king-post and the support, from visually giving a kind of sensation that threatens of people.Because the position that device is installed is in the pylon middle and lower part, even the people bases oneself upon difficulty in the above, tool using is just more difficult, can increase the deathwatch's difficulty in the reality in addition.Its three, institute spinosity sheet fixed form adopts anti-theft bolt and the fastening method of multiple spot, also increases difficulty to the thief, has really accomplished comprehensive, three-dimensional antitheft, anti-climbing.
2, economy: this antitheft anti-climbing designing material uses less, easy for installation, and material adopts stainless steel, and the once mounting Maintenance free can forever use.
3, convenience: the maintenance king-post is provided with the outer anti-creep device of opening, and antitheft during locking, anti-climbing, access path is opened during maintenance, and access path is unobstructed when guaranteeing maintenance.Whole simplicity of design, reliable, convenient.
4, safety: no matter be the installation of sheet shape lancination band, still outer the fixing of anti-creep device of opening all adopts the mode that steel bar and bolted on connection are installed, and not be used in perforate and welding on the tower body, can not damage tower body surface and structure fully, very little to the load influence of pylon.
5, aesthetic property: sheet shape lancination band is attached at the king-post of iron tower and pillar is installed, and opens anti-creep device outward and stretches out highly for a short time, does not influence the iron tower outward appearance, with the whole harmony of iron tower.
Description of drawings
Fig. 1 iron tower is antitheft, the sheet shape lancination band scheme of installation in the anti-climbing device
Fig. 2 iron tower is antitheft, anti-climbing device locking schematic diagram
Fig. 3 iron tower is antitheft, anti-climbing device is opened outward and opened schematic diagram
Wherein: 1, sheet shape lancination band; 2, connect fastening steel bar; 3, iron tower king-post and pillar; 4, anti-theft bolt; 5, maintenance king-post; 6, open the anti-creep device support outward; 7, fastening anti-theft bolt; 8, the pillar of sheet shape lancination sheet is installed; 9, anti-theft bolt; 10, A fan sheet rotating shaft; 11, A fan sheet steel disc; 12, A fan sheet stainless steel substrates; 13, B fan sheet rotating shaft; 14, B fan sheet steel disc; 15, B fan sheet stainless steel substrates; 16, tapered end rotating shaft; 17, lock post; 18, tapered end rotatable lamella; 19, A fan sheet; 20, B fan sheet.
The specific embodiment
According to Fig. 1, Fig. 2, Fig. 3 as can be known: the utility model comprises that iron tower king-post and pillar are provided with sheet type lancination band, and the maintenance king-post is provided with the outer anti-creep device of opening.
Antitheft, the anti-climbing device of a kind of permanent iron tower.It comprises that iron tower king-post and pillar are provided with sheet type lancination band, and access path is provided with the outer anti-creep device of opening.This device by sheet shape lancination band 1, connect fastening steel bar 2, iron tower king-post and pillar 3, anti-theft bolt 4, maintenance king-post 5, open anti-creep device support 6, fastening anti-theft bolt 7, the pillar 8 that sheet shape lancination sheet is installed, anti-theft bolt 9, A fan sheet rotating shaft 10, A fan sheet steel disc 11, A fan sheet stainless steel substrates 12, B fan sheet rotating shaft 13, B fan sheet steel disc 14, B fan sheet stainless steel substrates 15, tapered end rotating shaft 16, lock post 17 outward, tapered end rotatable lamella 18 is formed.Iron tower king-post and pillar are provided with sheet shape lancination band 1, it is characterized in that: sheet shape lancination band 1 is attached at the external surface of king-post and pillar 3, closely connects by connection steel bar 2, anti-theft bolt 4.
The maintenance king-post is provided with the outer anti-creep device of opening, and it is characterized in that: open anti-creep device support 6 outward and be anchored on the external surface that overhauls king-post 5 by fastening anti-theft bolt 7, the inboard inboard passage of climbing of pillar 8 sealings by sheet shape lancination sheet is installed of device.The device outside is by A fan sheet, B fan sheet sealing outside climbing passage.A fan sheet steel disc 11, A fan sheet stainless steel steel disc 12 are connected on the appliance stand 6 by A fan sheet rotating shaft 10 by the riveted joint connection, and A fan sheet is finished opening and closing around A fan sheet rotating shaft 10 rotations.B fan sheet steel disc 14, B fan sheet stainless steel steel disc 15 are connected on the appliance stand 6 by B fan sheet rotating shaft 13 by the riveted joint connection, and B fan sheet is finished opening and closing around B fan sheet rotating shaft 13 rotations.The locking and the releasing locking of A fan sheet, B fan sheet are finished by tapered end rotating shaft 16, lock post 17, tapered end rotatable lamella 18; With private key rotational lock head rotating shaft 16, tapered end rotatable lamella 18 rotates to lock post 17 phase interlocks around tapered end rotating shaft 16, and A fan sheet, B fan sheet are in the position of locking, and the outer passage sealing is sealed by left right flat-fan.With private key rotational lock head rotating shaft 16, tapered end rotatable lamella 18 leaves lock post 17 around tapered end rotating shaft 16 rotations, and A fan sheet, B fan sheet are in the position of removing locking, A fan sheet is opened outside fan sheet rotating shaft 13 rotations around A fan sheet rotating shaft 10, B fan sheet, and outer passage is opened fully.
According to Fig. 1, shown in Figure 2, on the king-post of 6m to 8m at the bottom of the distance tower and pillar, attach installation sheet shape lancination band, king-post in this altitude range and pillar 3 whole installation fixing piece shape lancination bands, the 7m place is provided with the outer anti-creep device of opening on the maintenance king-post, the outer anti-creep device of opening is by the outer anti-creep device support 6 of opening, fastening anti-theft bolt 7, the pillar 8 of sheet shape lancination sheet is installed, anti-theft bolt 9, A fan sheet rotating shaft 10, A fan sheet steel disc 11, A fan sheet stainless steel substrates 12, B fan sheet rotating shaft 13, B fan sheet steel disc 14, B fan sheet stainless steel substrates 15, tapered end rotating shaft 16, lock post 17, tapered end rotatable lamella 18 is formed. and its annexation is outer anti-creep device support 6 is anchored on maintenance king-post 5 by fastening anti-theft bolt 7 the external surface of opening, the inboard inboard climbing of the pillar 8 sealings passage of device by sheet shape lancination sheet is installed. the device outside is by A fan sheet, B fan sheet sealing outside climbing passage .A fan sheet steel disc 11, A fan sheet stainless steel steel disc 12 is by the riveted joint connection, be connected on the appliance stand 6 by A fan sheet rotating shaft 10, A fan sheet is around A fan sheet rotating shaft 10 rotations, finish opening and closing .B fan sheet steel disc 14, B fan sheet stainless steel steel disc 15 is by the riveted joint connection, be connected on the appliance stand 6 by B fan sheet rotating shaft 13, B fan sheet is finished opening and closing .A fan sheet around B fan sheet rotating shaft 13 rotations, the locking of B fan sheet and releasing locking are by tapered end rotating shaft 16, lock post 17, tapered end rotatable lamella 18 is finished; With private key rotational lock head rotating shaft 16, tapered end rotatable lamella 18 rotates to lock post 17 phase interlocks around tapered end rotating shaft 16, A fan sheet, B fan sheet are in the position of locking, the outer passage sealing is sealed by left right flat-fan. and the 6m of iron tower is in comprehensive, the three-dimensional protection to this one deck of 8m, unrelated person can't be climbed iron tower, reaching antitheft, anti-climbing purpose. sheet shape lancination band 1 is attached at the external surface of king-post and pillar 3, closely connect by connection steel bar 2, anti-theft bolt 4. attaching property height, be connected firmly, be difficult for destroyed, it is attractive in appearance not influence iron tower.
According to shown in Figure 1: open outward anti-creep device by outer open anti-creep device support 6, anti-theft bolt 7, the pillar 8 that sheet shape lancination sheet is installed, anti-theft bolt 9, A fan sheet rotating shaft 10, A fan sheet steel disc 11, A fan sheet stainless steel substrates 12, B fan sheet rotating shaft 13, B fan sheet steel disc 14, B fan sheet stainless steel substrates 15, tapered end rotating shaft 16, lock post 17, tapered end rotatable lamella 18 constitutes.
Its annexation is: open anti-creep device support 6 outward and be anchored on the external surface that overhauls king-post 5 by fastening anti-theft bolt 7, the inboard inboard passages of climbing of pillar 8 sealings by sheet shape lancination sheet is installed of device.The device outside is by A fan sheet, B fan sheet sealing outside climbing passage.A fan sheet steel disc 11, A fan sheet stainless steel steel disc 12 are connected on the appliance stand 6 by A fan sheet rotating shaft 10 by the riveted joint connection, and A fan sheet is finished opening and closing around A fan sheet rotating shaft 10 rotations.B fan sheet steel disc 14, B fan sheet stainless steel steel disc 15 are connected on the appliance stand 6 by B fan sheet rotating shaft 13 by the riveted joint connection, and B fan sheet is finished opening and closing around B fan sheet rotating shaft 13 rotations.The locking and the releasing locking of A fan sheet, B fan sheet are finished by tapered end rotating shaft 16, lock post 17, tapered end rotatable lamella 18; With private key rotational lock head rotating shaft 16, tapered end rotatable lamella 18 rotates to lock post 17 phase interlocks around tapered end rotating shaft 16, and A fan sheet, B fan sheet are in the position of locking, outer passage sealing.With private key rotational lock head rotating shaft 16, tapered end rotatable lamella 18 leaves lock post 17 around tapered end rotating shaft 16 rotations, and A fan sheet, B fan sheet are in the position of removing locking, A fan sheet is opened outside fan sheet rotating shaft 13 rotations around A fan sheet rotating shaft 10, B fan sheet, and outer passage is opened fully.
When this device is in lockup state, tapered end rotatable lamella 18, lock post 17 interlocks at this moment, A fan sheet, B fan sheet are in the position of locking.Access path is in locking and takes precautions against the position.
According to shown in Figure 3: rotate counterclockwise tapered end rotating shaft 16, drive tapered end rotatable lamella 18, leave the interlock of lock post 17, B is fanned sheet promote to be rotated counterclockwise 90 ° around B fan sheet rotating shaft 13; A is fanned sheet promote to turn clockwise 90 ° around A fan sheet rotating shaft 10, as seen from the figure, access path is opened fully, and the maintainer can step on the tower operation.

Claims (3)

1. a permanent iron tower is antitheft, anti-climbing device, it comprises maintenance king-post (5), the pillar (8) of sheet shape lancination sheet is installed, A fans sheet rotating shaft (10), A fans sheet steel disc (11), A fans sheet stainless steel steel disc (12), B fans sheet steel disc (14), B fans sheet stainless steel substrates (15), tapered end rotating shaft (16), tapered end rotatable lamella (18), it is characterized in that: sheet shape lancination band (1) is attached at the external surface of king-post and pillar (3), by steel bar (2), anti-theft bolt (4) connects, the outer anti-creep device support (6) of opening is fixed in the external surface that overhauls king-post (5) by fastening anti-theft bolt (7), and device is inboard by the inboard passage of climbing of pillar (8) sealing that sheet shape lancination sheet is installed.
2. antitheft, the anti-climbing device of a kind of permanent iron tower according to claim 1, it is characterized in that: described A fan sheet steel disc (11), A fan sheet stainless steel steel disc (12) connect by riveted joint, A fan sheet rotating shaft (10) is connected on the appliance stand (6), B fan sheet steel disc (14), B fan sheet stainless steel steel disc (15) connect by riveted joint, and B fan sheet rotating shaft (13) is connected on the appliance stand (6).
3. antitheft, the anti-climbing device of a kind of permanent iron tower according to claim 1 is characterized in that: described tapered end rotating shaft (16), tapered end rotatable lamella (18) rotate to lock post (17) phase interlock around tapered end rotating shaft (16).
CN200920087521XU 2009-07-24 2009-07-24 Permanent iron tower anti-thief and anti-climbing device Expired - Fee Related CN201460376U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920087521XU CN201460376U (en) 2009-07-24 2009-07-24 Permanent iron tower anti-thief and anti-climbing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920087521XU CN201460376U (en) 2009-07-24 2009-07-24 Permanent iron tower anti-thief and anti-climbing device

Publications (1)

Publication Number Publication Date
CN201460376U true CN201460376U (en) 2010-05-12

Family

ID=42387730

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920087521XU Expired - Fee Related CN201460376U (en) 2009-07-24 2009-07-24 Permanent iron tower anti-thief and anti-climbing device

Country Status (1)

Country Link
CN (1) CN201460376U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101619626B (en) * 2009-07-24 2011-07-27 武汉秦唐科技发展有限公司 Permanent anti-theft and anti-climbing device of iron tower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101619626B (en) * 2009-07-24 2011-07-27 武汉秦唐科技发展有限公司 Permanent anti-theft and anti-climbing device of iron tower

Similar Documents

Publication Publication Date Title
CN101619626B (en) Permanent anti-theft and anti-climbing device of iron tower
DK1925818T3 (en) Rotor for a wind power plant with a bulkhead
CN201306030Y (en) Anti-climbing and anti-theft device for pylon
RU2627011C2 (en) Wind turbine and wind turbine tower
US20060230695A1 (en) Window shutter system
CN201460376U (en) Permanent iron tower anti-thief and anti-climbing device
CN106374349A (en) Rainproof power distribution box capable of automatically warning
CN201679268U (en) Anti-theft device for power transmission tower
CN2833074Y (en) Automatic fireproof safety door
CN202300052U (en) Antitheft screen door and screen window
CN202273572U (en) Electromechanical integrated invisible protection system
CN201021591Y (en) Alarming rescue theft preventive mesh
CN208631969U (en) Tower crane anti-climbing combination device
CN2876290Y (en) Monitoring room door
CN201203641Y (en) Electronic type electric energy meter capable of avoiding fraudulent use of electricity
CN211598025U (en) High-safety workshop isolation fence
CN102392592B (en) Electromechanical integration invisible protective system
CN203550075U (en) Safety protective device of air-conditioning outdoor unit
CN108868507A (en) A kind of household equipment platform
CN112118425A (en) Protection device for traffic security equipment
CN201162463Y (en) Life-saving anti-theft window
CN211573243U (en) Anti-theft door capable of fast escaping
US20090072549A1 (en) Panic Exit and Enclosure Gate Method
CN214615554U (en) Novel environmental protection elevator plastics protection device
CN2823514Y (en) Anti-theft shutter window sashes

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100512

Termination date: 20110724