CN2595885Y

CN2595885Y - Anti-theft water-proof manhole cover

Info

Publication number: CN2595885Y
Application number: CN 02237366
Authority: CN
Inventors: 赵占山
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-26
Filing date: 2002-06-26
Publication date: 2003-12-31
Anticipated expiration: 2012-06-26

Abstract

The utility model discloses a theftproof and waterproof manhole cover, which comprises a manhole cover, a well seat, a theftproof device and a special key, wherein, the side edge of the lower side of the manhole cover is provided with the theftproof device, the theftproof device comprises a deflector rod, a latch bolt, a spring and two fixed seats fixed to the bottom surface of the manhole cover, wherein, the latch bolt is clamped with the lower edge of the well seat, and the other end of the latch bolt is connected with the deflector rod after penetrated through the spring between the fixed seats. The head part of the deflector rod is slightly extended out of the bottom surface of an accommodating chamber in an opening hole, the manhole cover is inwards provided with a lug boss, a groove is arranged on the lug boss, and a waterproof ring is arranged in the groove. The special key comprises a bending handle, a positioning table and a rectangular key head, and the bottom surface of the key head is provided with a clamping groove. The theftproof device can be opened when the special key is arranged in the opening hole and turned outwards 90 DEG according to the direction of the opening hole in use. The utility model overcomes the disadvantages of the existing manhole cover which is lost at times and has water leakage in a well.

Description

Antitheft, Waterproof well cover

Technical field

The utility model relates to the well lid that uses in a kind of urban construction, especially a kind of antitheft, Waterproof well cover.

Background technology

Existing municipal sewage system, telecommunication pipeline, water supply and sewerage pipeline, heating line etc. all are provided with well lid, but since original well lid antitheft, waterproof measure is ineffective, or anti-theft feature is too complicated, operation and maintenance is all inconvenient, or do not have water-proof function that anti-theft device is got rusty, cause well lid rust dead or can't antitheftly lose, thereby sewage is irritated well, facility damages in the well, and dangerous accident happens occasionally.

Summary of the invention

The purpose of this utility model provide a kind of simple in structure, easy to use, anti-theft feature is reliable, antitheft, Waterproof well cover, the shortcoming that it has overcome, and existing well lid is lost often, pour water in the well.

The purpose of this utility model is achieved in that it includes well lid, the well seat, anti-theft device and private key, avris is provided with anti-theft device below the described well lid, described anti-theft device includes driving lever, dead bolt, spring and two holders that are fixed on the well lid bottom surface, wherein dead bolt blocks the lower edge of well seat, the spring that the other end of dead bolt passes between holder and the holder is connected with driving lever, the head of described driving lever slightly stretches out the bottom surface of the accommodation chamber in the open hole, described well lid inwardly is provided with boss, boss is provided with groove, and water proof ring is housed in the groove.

The bottom of described driving lever is connected with dead bolt by cam.

Described private key includes curved handle, positioning table and rectangular key bit, and described key bit bottom surface is provided with draw-in groove.

Described open hole is a rectangular slot, is provided with the accommodation chamber with the key bit coupling in the groove.

Described water proof ring is made by rubber.

The curved handle of described private key, positioning table and rectangular key bit are formed by the metal integrally casting.

Because the utility model has adopted said structure, compared with prior art has the following advantages: rational in infrastructure, easy to use; Open the well lid handle of using and the key of unblanking and be structure as a whole, need not to open well lid with special tool again; Simple in structure, anti-theft feature is reliable; Be provided with water proof ring, can prevent sewage filling well.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 open hole schematic diagram of the present utility model;

Fig. 3 is the B-B sectional view of Fig. 2;

Fig. 4 is a well lid schematic diagram of the present utility model;

Fig. 5 is the utility model private key schematic diagram;

Fig. 6 is that the A of the key bit of Fig. 5 and positioning table is to view;

Fig. 7 is a cam schematic diagram of the present utility model.

Among the figure: 1. well lid; 2. well seat; 3. private key; 4. driving lever; 5. water proof ring; 6. dead bolt; 7. holder; 8. spring; 9. open hole; 10. boss; 11. groove; 12. anti-theft device; 13. curved; 14. positioning table; 15. key bit; 16. draw-in groove; 17. accommodation chamber; 18. cam.

The specific embodiment

As shown in the figure, the utility model includes well lid 1, well seat 2, anti-theft device 12 and private key 3, avris is provided with anti-theft device 12 below well lid 1, the dead bolt 6 of anti-theft device 12 blocks the lower edge of well seat 2, the spring 8 that the other end of dead bolt 6 passes between holder 7 and the holder 7 is connected by a cam 18 with driving lever 4, also can establish a shifting block herein, stir dead bolt 6 (also can utilize other existing machinery drive technology herein) about being used for.The head of driving lever 4 slightly stretches out the bottom surface of the accommodation chamber 17 in the open hole 9, and the head of driving lever 4 can snap in the draw-in groove 16 of key bit 15 bottom surfaces of private key 3 easily like this.Well lid 2 inwardly is provided with boss 10, and boss 10 is provided with groove 11, and water proof ring 5 is housed in the groove 11, can be pressed in after well lid 1 covers like this on the water proof ring 5 of well seat 2, makes the periphery of well seat 2 be added with rubber seal water proof ring 5, plays the function of waterproof.Private key 3 include curved 13, positioning table 14 and rectangular key bit 15, the bottom surface of key bit 15 is provided with draw-in groove 16.Open hole 9 is a rectangular slot, is provided with the accommodation chamber 17 with key bit 15 couplings in the groove.Water proof ring 5 is made by rubber, and well lid 1 and well seat 2 usefulness ductile iron, grey cast-iron etc. are cast.Private key 3 curved 13, positioning table 14 and rectangular key bit 15 form by the metal integrally casting.

During use, the rectangle key bit 15 of private key 3 is put the people in it according to the direction of open hole 9, this moment, the draw-in groove 16 of key bit 15 bottom surfaces was fastened in driving lever 4 heads, private key 3 is outwards changeed 90 °, the cam 18 of driving lever 4 bottoms rotates, driving dead bolt 6 and move inward, is that the head of dead bolt 6 breaks away from the lower edge of well seat 2, and well lid 1 anti-theft device 12 is in opening.Because private key 3 has rotated 90 °, its rectangle key bit 15 can snap in accommodation chamber 17 interior can not the taking-ups of open hole 9, so upwards carries and bending 13, and well lid 1 is taken out in well seat 2.Because of the dead bolt 6 that passes spring 8 is provided with steady pin, so can compress spring 8 when private key 3 rotates, after private key 3 was transferred to, dead bolt 6 stretched out forward under the restoring force effect of spring, the lower edge that makes the head of dead bolt 6 block well seat 2 again reaches antitheft function.Anti-theft device 12 can be located at a side of well lid 1 or the both sides that symmetry is located at well lid 1 as required.The utility model can be widely used in places such as motorway, speedway, sidewalk.

Claims

One kind antitheft, Waterproof well cover, include well lid (1), well seat (2), anti-theft device (12) and private key (3), it is characterized in that: avris is provided with anti-theft device (12) below the described well lid (1), described anti-theft device (12) includes driving lever (4), dead bolt (6), spring (8) and two holders (7) that are fixed on well lid (1) bottom surface, wherein dead bolt (6) blocks the lower edge of well seat (2), the spring (8) that the other end of dead bolt (6) passes between holder (7) and the holder (7) is connected with driving lever (4), the head of described driving lever (4) slightly stretches out the bottom surface of the accommodation chamber (17) in the open hole (9), described well lid (2) inwardly is provided with boss (10), boss (10) is provided with groove (11), and water proof ring (5) is housed in the groove (11).
2. antitheft, Waterproof well cover according to claim 1 is characterized in that: the bottom of described driving lever (4) is connected with dead bolt (6) by cam (18).
3. antitheft, Waterproof well cover according to claim 1 is characterized in that: described private key (3) includes curved (13), positioning table (14) and rectangular key bit (15), and described key bit (15) bottom surface is provided with draw-in groove (16).
4. according to claim 1,3 described antitheft, Waterproof well covers, it is characterized in that: described open hole (9) is a rectangular slot, is provided with the accommodation chamber (17) with key bit (15) coupling in the groove.
5. antitheft, Waterproof well cover according to claim 1 is characterized in that: described water proof ring (5) is made by rubber.
6. antitheft, Waterproof well cover according to claim 3 is characterized in that: the curved handle (13) of described private key (3), positioning table (14) and rectangular key bit (15) are formed by the metal integrally casting.