CN2605306Y

CN2605306Y - Antitheft manhole cover

Info

Publication number: CN2605306Y
Application number: CN 03212265
Authority: CN
Inventors: 刘祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-28
Filing date: 2003-03-28
Publication date: 2004-03-03
Anticipated expiration: 2013-03-28

Abstract

The utility model disclosing an anti-theft well mouth cover comprises a cover body, a key body, a gear, two same inserting rods, lifting lugs, a connecting plate, a supporting plate and a baffle, wherein, an inserting hole is arranged at the middle of the cover body surface and the key body is a normal triangular prism; being fixedly connected with the lower end surface of the key body, the gear and key body are in the same center; two parallel inserting rods are arranged between the two opposite side surfaces of the gear and the inner side end of the inserting rods are in engagement with the gear; the middle and back parts of the inserting rods are provided with two lifting lugs respectively and the external round surface of the inserting rods is inserted into the holes of the lifting lugs and the lifting lugs are fixedly connected with the lower surface of the cover body. The inserting rods in engagement with the gear can be pushed out when the well mouth key is sleeved on the prism surface of the key body and makes clockwise rotation, and the inserting rods can be retracted when the key body is turned in an anticlockwise direction, thus finishing the fixing and detaching work of the utility model. The utility model has the advantages of being simple in structure, reliable in work, not easy to lose and make anti-site movements.

Description

Antitheft hole cover

Technical field: the utility model relates to the following well on a kind of urban street or the hole cover of pipeline well.

Background technology: the hole cover of following well on the urban street or pipeline well exists the defective of losing easily and misplacing and moving easily at present, brought unsafe hidden danger for pedestrian and vehicle, though some antitheft hole covers successively also occurred, but complex structure often is not suitable for humidity, working environment that dust is big.

Utility model content:, provide a kind of mobile hole cover of can not at will dismantling and misplace in order to overcome the defective that existing hole cover is lost easily and misplaced and move.The utility model is achieved by following scheme: a kind of antitheft hole cover, it comprises lid 1, key body 2, gear 3, two identical inserted links 4, hanger 5, junction plate 8, base plate 6 and baffle plate 7, lid 1 lip-deep middle place has jack 1-1, on the soffit of lid 1 jack 1-1 around be provided with junction plate 8, the base plate 6 that is parallel to lid 1 is fixed on the lower surface of junction plate 8, have the hole 6-1 concentric on the surface of base plate 6 with jack 1-1, key body 2 is a regular triangular prism, the gear shaft 3-1 of the upper surface of gear 3 is inserted among the 6-1 of hole and with the lower surface of key body 2 fixedlys connected, gear 3 is concentric with key body 2, two relative places, side of gear 3 are provided with inserted link 4, two inserted links 4 are parallel to each other, have several equally distributed annular groove 4-1 on the external surface of the medial end of inserted link 4, annular groove 4-1 and gear 3 engagements, in the inserted link 4, the rear portion is respectively equipped with a hanger 5, the outer round surface of inserted link 4 is inserted among the hole 5-1 of hanger 5, hanger 5 is fixedlyed connected with the soffit of lid 1, be connected with a baffle plate 7 on two lower surfaces near the hanger 5 of gear 3, have hole 7-1 on the surface of baffle plate 7, hole 7-1 is enclosed within on the gear shaft 3-1 of gear 3 lower surfaces.The well head key cover is turned clockwise on the prismatic surface of key body 2, can be extrapolated with the inserted link 4 of gear 3 engagements, be rotated counterclockwise key body 2 and just inserted link 4 can be withdrawn, thereby finish fixing and dismounting of the present utility model.The utlity model has simple in structure, reliable operation, mobile advantage is not easy to lose and is not easy to misplace.

Description of drawings: Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the B-B sectional view of Fig. 1, and Fig. 3 is the structural representation of the annular groove 4-1 of inserted link 4 in the embodiment one, and Fig. 4 is the A-A sectional view of Fig. 1.

The specific embodiment one: specify present embodiment below in conjunction with Fig. 1, Fig. 2 and Fig. 3.It is by lid 1, key body 2, gear 3, two identical inserted links 4, hanger 5, junction plate 8, base plate 6 and baffle plate 7 are formed, lid 1 lip-deep middle place has jack 1-1, on the soffit of lid 1 jack 1-1 around be provided with junction plate 8, the base plate 6 that is parallel to lid 1 is fixed on the lower surface of junction plate 8, have the hole 6-1 concentric on the surface of base plate 6 with jack 1-1, key body 2 is a regular triangular prism, the gear shaft 3-1 of the upper surface of gear 3 is inserted among the 6-1 of hole and with the lower surface of key body 2 fixedlys connected, gear 3 is concentric with key body 2, two relative places, side of gear 3 are provided with inserted link 4, two inserted links 4 are parallel to each other, have several equally distributed annular groove 4-1 on the external surface of the medial end of inserted link 4, annular groove 4-1 and gear 3 engagements, in the inserted link 4, the rear portion is respectively equipped with a hanger 5, the outer round surface of inserted link 4 is inserted among the hole 5-1 of hanger 5, hanger 5 is fixedlyed connected with the soffit of lid 1, be connected with a baffle plate 7 on two lower surfaces near the hanger 5 of gear 3, have hole 7-1 on the surface of baffle plate 7, hole 7-1 is enclosed within on the gear shaft 3-1 of gear 3 lower surfaces.Have on the surface of junction plate 8 and let out dirty hole 8-1.People can disclose following going by letting out dirty hole 8-1 with the dirt that falls into hole 1-1 when preparing dismounting lid 1.

The specific embodiment two: specify present embodiment below in conjunction with Fig. 1 and Fig. 2.The difference of present embodiment and embodiment one is: stud with plastic sheath 9 among the hole 6-1 of base plate 6 and the hole 7-1 of baffle plate 7, plastic sheath 9 is slidingly connected with gear shaft 3-1, studs with plastic sheath 10 among the hole 5-1 of hanger 5, and plastic sheath 10 is slidingly connected with inserted link 4.Other composition is identical with embodiment one with annexation.Plastic sheath 9 and plastic sheath 10 can be avoided can not rotating because of the bonding of getting rusty between tumbler.

Claims

1, a kind of antitheft hole cover, it comprises lid (1), it is characterized in that it also comprises key body (2), gear (3), two identical inserted links (4), hanger (5), junction plate (8), base plate (6) and baffle plate (7), the place had jack (1-1) in the middle of lid (1) was lip-deep, on the soffit of lid (1) jack (1-1) around be provided with junction plate (8), the base plate (6) that is parallel to lid (1) is fixed on the lower surface of junction plate (8), have the hole (6-1) concentric on the surface of base plate (6) with jack (1-1), key body (2) is a regular triangular prism, the gear shaft (3-1) of the upper surface of gear (3) is inserted in the hole (6-1) and with the lower surface of key body (2) fixedlys connected, gear (3) is concentric with key body (2), two relative places, side of gear (3) are provided with inserted link (4), two inserted links (4) are parallel to each other, have several equally distributed annular grooves (4-1) on the external surface of the medial end of inserted link (4), annular groove (4-1) and gear (3) engagement, in the inserted link (4), the rear portion is respectively equipped with a hanger (5), the outer round surface of inserted link (4) is inserted in the hole (5-1) of hanger (5), hanger (5) is fixedlyed connected with the soffit of lid (1), be connected with a baffle plate (7) on two lower surfaces near the hanger (5) of gear (3), have hole (7-1) on the surface of baffle plate (7), hole (7-1) is enclosed within on the gear shaft (3-1) of gear (3) lower surface.

2, antitheft hole cover according to claim 1 is characterized in that having on the surface of junction plate (8) and lets out dirty hole (8-1).

3, antitheft hole cover according to claim 1, it is characterized in that studding with plastic sheath (9) in the hole (7-1) of the hole (6-1) of base plate (6) and baffle plate (7), plastic sheath (9) is slidingly connected with gear shaft (3-1), stud with plastic sheath (10) in the hole (5-1) of hanger (5), plastic sheath (10) is slidingly connected with inserted link (4).