CN2481763Y - Strong theftproof sealed manhole cover device - Google Patents

Abstract

A strong theftproof sealed manhole cover device comprises a manhole cover frame, a manhole and an easing device, wherein, a fixing cover board is fixed on the manhole cover frame, the wall surface of the inner side of the fixing cover board and the inner wall of the manhole cover frame are in an extending way provided with a closed lug boss, the manhole is covered on the closed lug boss, the easing device comprises a worm wheel, a worm, a principal shaft, two levers, two inner arms and two outer arms, the principal shaft meshes with the worm wheel, one end of each inner arm is fixed on the principal shaft, the other end of each inner arm is fixed on a cross rod of stress application, one end of each outer arm is fixed on the principal shaft, and the other end of each outer arm is connected with the manhole through a gimbal. The utility model has the advantages of a simple structure, labor-saving opening, safety and theftproof property.

Description

A kind of reinforce anti-theft sealing device for manhole

The utility model relates to a kind of well lid, particularly relates to a kind of reinforce anti-theft sealing device for manhole.

Smooth, clean and tidy, unimpeded road is one of important symbol of modern city, also is the important behave of national economy high speed development.Since the reform and opening-up, though our urban construction has obtained developing by leaps and bounds of attracting people's attention, the sewer well lid on the road and the ventilation of underground installation, maintenance well lid are still and adopt traditional well lid, and this well lid is not owing to there is anti-theft device, not only often lose, cause economic loss, and be prone to traffic accident, even the pernicious thing of making of injures and deaths occurs, well lid is because long-term motionless the rust extremely, be difficult to open, in order to open well lid, have to smash well lid sometimes.In addition, because well lid does not have waterproof and sand prevention device, usually make down-hole silt alluvial, cause sewer to stop up, surface gathered water behind the rain is obstructed traffic, also gives the maintenance underground installation simultaneously, brings inconvenience as various cables, pipe network etc.Have, this kind well lid does not meet environmental requirement yet again, and during the broiling summer, the bad smell in the sewer often distributes in air, causes environment pollution.

The purpose of this utility model, provide a kind of can be antitheft, waterproof and dustproof, can prevent from again that sewer is counter to distinguish the flavor of, and open convenient and strength-saving anti-theft sealing wellhead assembly.

The purpose of this utility model realizes by following technical scheme, that is:

A kind of reinforce anti-theft sealing device for manhole comprises well head frame, well lid and opening device.The well head frame is installed in the upper end of well body, and a side of well head frame upper port is installed with a securing cover plate, is arranged with a boss on the inwall of well head frame, is arranged with sealed groove on the boss, is equiped with sealing ring in the sealed groove, and the well lid buckle closure is being equipped with on the boss of sealing ring.Securing cover plate is provided with a perforation.Opening device comprises worm gear, worm screw, main shaft, two levers and two interior arms and two outer arms.Wherein worm gear and worm screw are installed in the box body, box body is fixed on the inwall of well head frame, main shaft passes two sidewalls of box body and is meshed with worm gear in the box body, worm screw extends moving axis bar together outside box body, the end, upper end of starting axostylus axostyle is located in the perforation on the securing cover plate, the upper end end face of starting axostylus axostyle is provided with the groove for the spanner turn, be installed with two axle beds that have axis hole respectively with corresponding section, main shaft two ends on the sidewall of well head frame, the two ends of main shaft penetrate respectively in the axis hole of two axle beds.Symmetry is installed with two interior arms and two outer arms on the main shaft, and the front end of two interior arms is fixedlyed connected with an afterburning cross bar, and the front end of two outer arms is connected by universal joint and well lid respectively.The opposite side relative with main shaft fixed two bearings on the well lid bottom surface, two levers are coupling respectively on two bearings, one end of two levers is the force side, the other end is the jack-up end, the force side of two levers is plugged between cover plate bottom surface and the afterburning cross bar, the jack-up end of two levers extends to the boss place of well head frame inwall, and holds corresponding position to be installed with two projections with two lever jack-up on the boss inside wall, and the jack-up end of two levers can be distinguished roof pressure on two projections.

Be concaved with an annular groove on the inwall of above-mentioned perforation upper end, be equiped with sealing mat in the annular groove, be nested with a seal receptacle that sealing mat is housed on the top of starting handle near the securing cover plate place, seal receptacle is fixed on the bottom surface of cover plate.

Be equiped with two poles on the above-mentioned afterburning transverse slat.

During operation, spanner is inserted in the groove above the starting handle, the turn-knob starting handle, the stressed back of starting handle drives worm screw and rotates, and worm screw drives worm gear and rotates, the worm gear drives main shaft rotates, main shaft drives inside and outside arm motion, and the universal joint on two outer arms holds up well lid, two levers of afterburning cross bar promotion on two interior arms, two levers are fulcrum with two bearings on the well lid bottom surface respectively, and the universal joint of its jack-up end and two outer arm drives is simultaneously with the horizontal jack-up of well lid.If desire to cover well lid, opposite spin starting handle then, starting handle drives each parts and resets, and then well lid is pressed on the convex platform that sealing ring is housed.

The utility model utilizes the huge torsion of worm and gear, the active force that adds upper lever, power that need only be very little just can make well lid open under any condition, for example freezing, get rusty and be out of shape all and can achieve the above object, no any hole on the well lid of the present utility model, and between well lid and well head frame, be provided with sealing ring, thereby fundamentally solved the problem of shaft bottom silt alluvial, sealing ring can also play the effect of buffering simultaneously, be coupled as one by universal joint and well head frame owing to cover plate in addition, and after well lid and well head frame fasten, there is not special tool to be difficult to open, the utlity model has safe antitheft, simple in structure, cost is low, open laborsaving, advantages such as sand prevention waterproof.

Fig. 1 is the structural representation of a kind of embodiment of the present utility model.Fig. 2 is the A-A sectional view of Fig. 1.Fig. 3 is a vertical view of the present utility model.The utility model is described in further detail below in conjunction with accompanying drawing: a kind of reinforce anti-theft sealing device for manhole comprises well head frame 1, well lid 2 and opening device.Well head frame 1 is a tubular, the securing cover plate 3 of the solid crescent of one face down bonding of its upper port, be drilled with a perforation 8 on the securing cover plate 3, well head frame 1 inwall upper end is arranged with boss 4, solid welding has two projections 5 on the inside wall of boss 4, projection has boss 21 on the inner side end of securing cover plate 3, and boss 21 is corresponding with the boss 4 on well head frame 1 inwall, and the closed boss of composition, on the boss 21 of boss 4 and securing cover plate inboard, be arranged with a closing seam groove 6, sealing ring 7 is housed in the sealed groove, and well lid 2 buckle closures are on convex platform 4 that sealing ring 7 is housed and boss 21.Opening device comprises worm gear 9, worm screw 10, main shaft 11, two levers 12 and two interior arms 13 and two outer arms 14.Wherein worm gear 9 and worm screw 10 are contained in the box body 27, and box body 27 is by being bolted to the top of well head frame 1 inwall; Main shaft 11 passes two sidewalls of box body 27 and is meshed with worm gear 9 in the box body 27, and worm screw 10 extends to box body 27 outside and moves bar 15 together, and the end, upper end of starting handle 15 penetrates in the perforation 8 on the securing cover plate 3.The upper end end face of starting handle 15 is provided with a triangular groove 16 for the spanner turn.Starting handle 15 is nested with a seal receptacle 18 that sealing mat 17 is housed near place, securing cover plate 3 bottom surfaces, and seal receptacle 18 is fixed on securing cover plate 3 bottom surfaces by screw.On the inwall of perforation end, 8 upper end, be arranged with an annular groove 19, sealing mat 20 is housed in the annular groove.Be fixed with the axle bed 22 in a tape spool hole on the inwall of well head frame 1 respectively with corresponding section, main shaft 11 two ends, the two ends of main shaft 11 penetrate respectively in the axis hole of pairing axle bed 22.The front end that is symmetrically fixed with two interior arms 13 and 14, two interior arms 13 of two outer arms on the main shaft 11 is fixedlyed connected with an afterburning cross bar 23, works to support well lid 2 when 24, two poles 24 of two poles are housed on the afterburning cross bar 23 in operation.The front end of two outer arms 14 links by universal joint 26 and well lid 2 respectively, opposite side relative with main shaft 11 on the bottom surface of well lid 2 is fixed with two bearings 25, two levers 12 are coupling respectively on two bearings 25, one end of two levers 12 is the force side, the other end is the jack-up end, the force side of two levers 12 is plugged between well lid 2 bottom surfaces and the afterburning cross bar 23, the jack-up end of two levers 12 extends to boss 4 places on well head frame 1 inwall, and when lever 12 application of forces, the jack-up of two levers 12 end can be distinguished roof pressure on two projections 5.

Claims (4)

1, a kind of reinforce anti-theft sealing device for manhole comprises well head frame (1), well lid (2) and opening device; Well head frame (1) is installed in the upper end of well body, it is characterized in that on the inwall of well head frame (1) upper end, being installed with a securing cover plate (3), securing cover plate (3) is provided with a perforation (8), the top ring of well head frame (1) inwall is around convexing with boss (4), be installed with two projections (5) on the inside wall of boss (4), convex with boss (21) on securing cover plate (3) inner side end, and boss (21) boss (4) is corresponding, on the upper end end face of boss (4) and boss (21), be arranged with closed groove (6), be equiped with sealing ring (7) in the groove (6), well lid (2) buckle closure is on boss that sealing ring (7) are housed (4) and boss (21); Opening device comprises worm gear (9), worm screw (10), main shaft (11), two levers (12) and two interior arms (13) and two outer arms (14); Worm gear (9) and worm screw (10) are installed in the box body (27), box body (27) is fixed on the inwall of well head frame (1), main shaft (11) is meshed with worm gear (9), worm screw (10) has extended a starting handle (15), the end, upper end of starting handle (15) penetrates in the perforation (8) on the securing cover plate (3), the upper end end face of starting handle (15) is provided with the groove (16) for the spanner turn, on the inwall of well head frame (1), be fixed with the axle bed (22) in a tape spool hole respectively with main shaft (11) corresponding section, two ends, the two ends of main shaft (11) penetrate respectively in the axis hole on the pairing axle bed (22), one end of two interior arms (13) is fixed on the main shaft (11), the other end of two interior arms (13) is fixedlyed connected with an afterburning cross bar (23), one end of two outer arms (14) is fixed on the main shaft (11), the other end of two outer arms (14) is connected with well lid (2) by universal joint (26) respectively, the front end of two outer arms (14) links by universal joint (26) and well lid (2) respectively, opposite side relative with main shaft (11) on the bottom surface of well lid (2) is fixed with two bearings (25), two levers (12) are coupling on two bearings (25), one end of two levers (12) is arranged between well lid (2) bottom surface and the afterburning cross bar (23), and the boss (4) that the other end of two levers (12) extends on well head frame (1) inwall is located.

2, a kind of reinforce anti-theft sealing device for manhole according to claim 1 is characterized in that being concaved with closed groove (6) on the upper surface of boss (4) and boss (21), is equiped with the sealing ring (7) that is used for damping and waterproof in the groove (6).

3, a kind of reinforce anti-theft sealing device for manhole according to claim 1 is characterized in that being concaved with an annular groove (19), annular groove (19) on the inwall of perforation (8) upper end.In sealing mat (20) is housed, locate to be nested with one on the top of starting handle (15) near securing cover plate (3) seal receptacle (18) of sealing mat (17) be housed, seal receptacle (18) is installed on the bottom surface of cover plate (3).

4, a kind of reinforce anti-theft sealing device for manhole according to claim 1 is characterized in that being equiped with two poles (24) that are used to support well lid (2) on afterburning cross bar (23).

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