CN2721825Y - Safety lock and special key of manhole cover - Google Patents
Safety lock and special key of manhole cover Download PDFInfo
- Publication number
- CN2721825Y CN2721825Y CN 200420025899 CN200420025899U CN2721825Y CN 2721825 Y CN2721825 Y CN 2721825Y CN 200420025899 CN200420025899 CN 200420025899 CN 200420025899 U CN200420025899 U CN 200420025899U CN 2721825 Y CN2721825 Y CN 2721825Y
- Authority
- CN
- China
- Prior art keywords
- lock
- fixed
- steel wire
- irregular
- inspection well
- 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
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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a safety lock and special key of manhole cover. The safety lock is characterized in that the lower end of the lock cylinder of the safety lock of a manhole cover is provided with a fixing bracket of an anti-picking ring. The lower end of the fixing bracket of the anti-picking ring is provided with a multi-ripple stamped rotary lock core with an irregular external taper. The both sides of the connecting ring of a lock nut and the multi-ripple stamped rotating lock core with the irregular external taper are respectively provided with steel wire draw rings and the resetting tension springs of the lock nut through two steel wires, and the lock cylinder is fixed on the manhole cover by the fastening helicoid of the lock cylinder. The special key of the manhole cover is provided with the external quincunx screw head for opening a dustproof cover at one end of a cross rod, and the other end is provided with a cover opening hook; the middle part of the cross rod is fixed with one end of a vertical rod, and the other end of the vertical rod is fixed with a multi-ripple special stamped head with an irregular internal taper. A gland is fixed in the vertical rod, and a pressurizing spring is sheathed in the vertical rod below the gland. The utility model has the advantages of simple structure and convenient opening and can practically and reliably prevent the manhole covers being stolen.
Description
Technical field
The utility model relates to well cover antitheft device, particularly relates to anti-theft lock for inspection well cover and private key thereof.
Background technology
Be used for the well lid that pipeline, sewage, tap water or cable shaft use at present and mostly do not have anti-theft device, its structure great majority are that symmetric arrays has two slotted holes on lid, need only during unlatching and just well lid can be mentioned, so well lid is often easily lost with two T-shape handgrips.After well lid is lost, facility often is damaged in the well, influence plant produced and people's normal life, and particularly normal losing because of the well lid on the road caused the car wound of speaking sarcastically, even the accident that adult or child fall in the sink hole also often takes place, and causes the consequence of the wounded or disabled and property loss of human body.
Summary of the invention
The purpose of this utility model is to provide a kind of anti-theft lock for inspection well cover and private key thereof, and it can practicality prevent that reliably inspection shaft lid robber from losing, and just can conveniently open with private key, reaches the effect of pick-proof.
The purpose of this utility model is achieved in that anti-theft lock for inspection well cover is that upper end by lock tube is equipped with dust seal cover, the water-tight circle is installed below the dust seal cover, and the outer locknut connecting ring that is equipped with of lock tube is formed; Also the end by steel wire draw ring line is connected with the steel wire draw ring by the wire directive wheel, the other end be connected with tapered end tie-bar in the spring tapered end form, the lower end of lock tube is equipped with pick-proof ring analog bracket, pick-proof ring analog bracket lower end is equipped with the irregular many ripples mold pressing of cylindrical taper rotary locking cylinder, and locknut connecting ring and the irregular many ripples mold pressing of cylindrical taper rotary locking cylinder both sides are installed steel wire draw ring and locknut reset tension spring respectively and will be locked tube with the fastening bung flange of lock tube by two steel wire sliding sleeves and are fixed on the well lid; Have the quincunx dust cap of Nei Wujiao above the described dust seal cover and open screw; Described spring tapered end end is fixed with the anti-bounce-back of tapered end safety fastener; Be provided with 5 to 8 safety grooves in the described lock tube.
The anti-theft lock for inspection well cover private key is that a end at cross bar is equipped with the quincunx dust cap of Wai Wujiao and opens the spiral shell head, and the other end is equipped with the opening hook; Fixedly connected with an end of montant in the middle part of cross bar, the other end of montant is fixedlyed connected with the special pattern pressure head of the irregular many ripples of inner conical; Be fixed with gland in the montant, be with pressurized spring in the montant of gland below.
The utility model compared with prior art, can prevent effectively well lid stolen, lose, stolen and destroyed with facilities such as true cables.The utility model is simple in structure, and its practicality prevents that reliably inspection shaft from covering the robber and losing, and it is convenient to open again, is convenient to installation, use, maintenance, very easily promotes the use.Protect vehicle and walk safety, can also prevent effectively that facility such as underground communication cable from being stolen and destroying.The utility model is simple in structure, and its practicality prevents that reliably inspection shaft from covering the robber and losing, and it is convenient to open again, is convenient to installation, use, maintenance, very easily promotes the use.
Below in conjunction with accompanying drawing, the utility model is specifically described (but be not to scope of the present utility model restriction).
Description of drawings
Fig. 1 is the structural representation of the utility model anti-theft lock for inspection well cover.
Fig. 2 is the structural representation of the utility model anti-theft lock for inspection well cover private key.
The specific embodiment
As shown in Figure 1, the utility model anti-theft lock for inspection well cover is that the upper end by lock tube (1) is equipped with dust seal cover (9), water-tight circle (11) is installed below the dust seal cover (9), and the outer locknut connecting ring (2) that is equipped with of lock tube (1) is formed; Also the end by steel wire draw ring line (15) is connected with steel wire draw ring (7) by wire directive wheel (14), the other end be connected with tapered end tie-bar (13) in the spring tapered end (12) form, the lower end of lock tube (1) is equipped with pick-proof ring analog bracket (3), pick-proof ring analog bracket (3) lower end is equipped with the irregular many ripples mold pressing of cylindrical taper rotary locking cylinder (4), and locknut connecting ring (2) is installed steel wire draw ring (7) and locknut reset tension spring (8) respectively and will be locked tube (1) with the lock fastening bung flange of tube (5) by two steel wire sliding sleeves (6) with the irregular many ripples mold pressing of cylindrical taper rotary locking cylinder (4) both sides and is fixed on the well lid; Have the quincunx dust cap of Nei Wujiao above the described dust seal cover (9) and open screw (10); Described spring tapered end (12) end is fixed with the anti-bounce-back of tapered end safety fastener (16); Be provided with 5 to 8 safety grooves in the described lock tube (1).
As shown in Figure 2, anti-theft lock for inspection well cover private key of the present utility model is that a end at cross bar (2) is equipped with the quincunx dust cap of Wai Wujiao and opens spiral shell head (1), and the other end is equipped with opening hook (4); Fixedly connected with an end of montant (3) in the middle part of cross bar (2), the other end of montant (3) is fixedlyed connected with the irregular special pattern pressure heads of many ripples of inner conical (7); Be fixed with gland (5) in the montant (3), be with pressurized spring (6) in the montant (3) of gland (5) below.
When uncapping, the quincunx dust cap of Wai Wujiao in the private key of anti-theft lock for inspection well cover is opened spiral shell head (1), five jiaos of quincunx dust caps are opened in the screw (10) in inserting, be rotated counterclockwise, dust seal cover (9) is opened, again the irregular special pattern pressure heads of many ripples of the inner conical in the private key (7) are inserted in the lock tube (1), the irregular ripple of key and lock core is coincide naturally, simultaneously stationary gland (5) rotation is fixed on the lock tube (1), make pressurized spring (6) produce pressure, to the key pressurization, make it not can and lock core between skid, be integrated, with the rotation of key clockwise direction, by steel wire draw ring line (15) tapered end tie-bar (13) is pulled out, spring tapered end (12) is opened, and automatically tapered end anti-bounce-back safety fastener (16) is opened, just can open the inspection shaft lid.
Claims (5)
1, a kind of anti-theft lock for inspection well cover is characterized in that by the upper end of lock tube (1) dust seal cover (9) being installed, and water-tight circle (11) is installed below the dust seal cover (9), and the outer locknut connecting ring (2) that is equipped with of lock tube (1) is formed; Also the end by steel wire draw ring line (15) is connected with steel wire draw ring (7) by wire directive wheel (14), the other end be connected with tapered end tie-bar (13) in the spring tapered end (12) form, the lower end that it is characterized in that lock tube (1) is equipped with pick-proof ring analog bracket (3), pick-proof ring analog bracket (3) lower end is equipped with the irregular many ripples mold pressing of cylindrical taper rotary locking cylinder (4), and locknut connecting ring (2) is installed steel wire draw ring (7) and locknut reset tension spring (8) respectively and will be locked tube (1) with the lock fastening bung flange of tube (5) by two steel wire sliding sleeves (6) with the irregular many ripples mold pressing of cylindrical taper rotary locking cylinder (4) both sides and is fixed on the well lid.
2, a kind of anti-theft lock for inspection well cover private key is characterized in that at an end of cross bar (2) the quincunx dust cap unlatching of Wai Wujiao spiral shell head (1) being installed, and the other end is equipped with opening hook (4); Fixedly connected with an end of montant (3) in the middle part of cross bar (2), the other end of montant (3) is fixedlyed connected with the irregular special pattern pressure heads of many ripples of inner conical (7); Be fixed with gland (5) in the montant (3), be with pressurized spring (6) in the montant (3) of gland (5) below.
3, require 1 described anti-theft lock for inspection well cover according to power, it is characterized in that having above the described dust seal cover (9) the quincunx dust cap of Nei Wujiao and open screw (10).
4, require 1 described anti-theft lock for inspection well cover according to power, it is characterized in that described spring tapered end (12) end is fixed with the anti-bounce-back of tapered end safety fastener (16).
5, require 1 described anti-theft lock for inspection well cover according to power, it is characterized in that being provided with 5 to 8 safety grooves in the described lock tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025899 CN2721825Y (en) | 2004-03-28 | 2004-03-28 | Safety lock and special key of manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025899 CN2721825Y (en) | 2004-03-28 | 2004-03-28 | Safety lock and special key of manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2721825Y true CN2721825Y (en) | 2005-08-31 |
Family
ID=35012197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420025899 Expired - Fee Related CN2721825Y (en) | 2004-03-28 | 2004-03-28 | Safety lock and special key of manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2721825Y (en) |
-
2004
- 2004-03-28 CN CN 200420025899 patent/CN2721825Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |