CN2780842Y - Self-locking anti-theft manhole cover - Google Patents
Self-locking anti-theft manhole cover Download PDFInfo
- Publication number
- CN2780842Y CN2780842Y CN 200520095361 CN200520095361U CN2780842Y CN 2780842 Y CN2780842 Y CN 2780842Y CN 200520095361 CN200520095361 CN 200520095361 CN 200520095361 U CN200520095361 U CN 200520095361U CN 2780842 Y CN2780842 Y CN 2780842Y
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- CN
- China
- Prior art keywords
- self
- manhole cover
- well lid
- inspection shaft
- truncated cone
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- 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.)
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Abstract
The utility model relates to a self-locking type anti-theft manhole cover, which belongs to the technical field of the manhole cover. The utility model primarily solves the problem that the existing manhole cover and a manhole cover support seat are in two body separate-type and make the manhole cover easy to be stolen. The self-locking type anti-theft manhole cover is characterized in that the utility model comprises the manhole cover support seat and the manhole cover. The inner surface of the manhole cover is provided with a truncated cone body. The manhole cover support seat is provided with a spacer sleeve which is loose fitted with the truncated cone body. The top end of the spacer sleeve is provided with screw bolt penetrating bores. A ball joint screw bolt which passes through the penetrating bores and is coupled with the truncated cone body is also composed. The bolt nut of the ball joint screw bolt is in a hemisphere-body shape, and additionally, the outer end of the penetrating bores of the spacer sleeve is provided with a matching opening in a spherical face shape. The utility model is mainly used for a closing device of the manhole cover of an inspection manhole of urban sewers, telecommunications, electric cables, etc.
Description
Technical field
The utility model relates to the manhole lid device of manholes such as a kind of municipal sewage system, telecommunication, cable, particularly a kind of self-locking antitheft inspection shaft lid.Belong to inspection shaft lid technical field.
Background technology
At present, the Cover of inspection well and the well lid bearing of most of cities uses are two body separate types.Though advantages such as simple in structure, easy to operate and price that it has is lower singly can meet the demands fully from use angle, but exist fatal shortcoming.Because well lid and well lid bearing are two bodies, so that well lid is easy to is stolen, thereby open well head causes a lot of injury accidents, jeopardizes people's security of the lives and property.
At above situation, occurred on the market much such as adopting anti-stealing manhole covers such as built-in lock locking formula, special hinge formula, chain type or rod-type chain type.For built-in lock locking formula well lid, locking makes stifled, the corrosion of lock ash easily, does not open; If adopt universal latch, the person also can be fitted on key diligently and steal steathily; For special hinge formula well lid, also easily stifled, the corrosion of ash makes troubles for the work of driving a well, and the also available hammering of hinge fraction breaks, and is dangerous; For chain type and rod member chain type well lid, antitheft exposure can sawing, carve and cut, and be dangerous.More than several anti-stealing manhole covers, under the situation that present two body separate type well lids are stolen easily, perhaps be not the main object of stealing, in case two body separate type well lids reduce, it will become the main target of hunting taker.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of Cover of inspection well and well lid bearing movable connection at above-mentioned weak point, and combines as a whole, the self-locking antitheft inspection shaft lid of good anti-theft effect.
Technical solution of the present utility model is: a kind of self-locking antitheft inspection shaft lid, comprise well lid bearing and well lid, and it is characterized in that: on the well lid inner surface, be provided with a truncated cone; Be provided with the interstage sleeve with this truncated cone loose fit on the well lid bearing, the top of this interstage sleeve is provided with bolt and passes through the hole; Comprise that also passing this passes through the ball-joint bolt that the hole connects with truncated cone, the nuts of this ball-joint bolt is the hemisphere bodily form, and passes through the sphere shape mouth that outer end of hole is provided with cooperation on the interstage sleeve.
Well lid described in the utility model technical solution can be dome structure.
Well lid upper surface described in the utility model technical solution can be provided with the anti-skid design of projection, and the upper end of this anti-skid design is concordant with the well lid centre.
Can be with the anti-cutting cover on the shank of bolt of the ball-joint bolt described in the utility model technical solution.
Can be provided with radial reinforcing rib on the well lid inner surface described in the utility model technical solution.
The surface of the ball-joint bolt described in the utility model technical solution can be provided with antirust coat.
The bottom of the interstage sleeve described in the utility model technical solution can be provided with the prolongation protective sleeve.
The sidepiece of the truncated cone described in the utility model technical solution can be provided with backing-up screw.
The utility model is owing to be provided with truncated cone on well lid, on the well lid bearing, be provided with the interstage sleeve that cooperates with it, thereby, before the well lid bearing not being imbedded well head, earlier passing interstage sleeve with bolt passes through the hole and screws on the truncated cone, can make between well lid and the well lid bearing movablely to connect and become one, again the well lid bearing is fastened on the well head during installation.After well lid covered, well lid fell in the well lid bearing seat ring, at this moment was fixed on bolt tail on the well lid not in interstage sleeve.If in the time of need opening well lid and go into the well work, only need well lid is risen to design height vertically upward, and then rotate to an angle, well lid is shelved on the ground, well head is exposed, the work of can going into the well.The utility model anti-theft feature is achieved in that when well lid upwards promotes, is fastened to bolt on the truncated cone also along with rising, and afterbody must enter in the interstage sleeve mouth, bolt shank is promptly blocked by interstage sleeve, demounting bolt is become have no way of doing it, no origin of force.At this moment, well lid and well lid bearing are in a kind of self-locking state of can be movable and can not taking away by Bolt Connection, thereby have reached antitheft purpose.Because the nuts of ball-joint bolt is the hemisphere bodily form, interstage sleeve passes through the sphere shape mouth of outer end of hole for cooperating with it, thereby degree of freedom is big, particularly in the lifting, turn, dilatory process of heavy well lid, can prevent the bending of ball-joint bolt at well lid effectively.Because the fit clearance between truncated cone and the interstage sleeve is more loose spacious, and the slit is horn-like, thereby is convenient to leak, leak ash, is difficult for corrosion.The utility model is owing to be designed to dome structure with well lid, thereby more sturdy and durable than traditional well lid.In addition dome well lid upper surface be provided with its centre with high protruding anti-skid design, thereby can make its upper surface keep the flat top surface state, be convenient to normal walking of people and vehicle and steadily pass through.The utility model also is provided with the anti-cutting cover on shank of bolt, thereby when well lid is in the lifting state, can prevent that shank of bolt is by sawing.The utility model is mainly used in the well head locking device of manholes such as municipal sewage system, telecommunication, cable.
Description of drawings
Fig. 1 is the structural representation of the utility model closed condition; Fig. 2 is the structural representation of the utility model open mode; Fig. 3 is the plan structure schematic diagram of well lid among Fig. 1, well lid bearing.
The specific embodiment
As shown in Figure 1 to Figure 3.The utility model is not assembled before imbedding well head.Side at well lid bearing 1 is fixing with interstage sleeve 4 with interstage sleeve set bolt 7, also interstage sleeve 4 and bearing 1 can be cast as one.Then the truncated cone on the well lid 23 is inserted in the interstage sleeve 4, and after putting anti-cutting cover 8 with ball-joint bolt 5 interstage sleeve 4 and well lid 2 are set on together, and lift well lid, screw in backing-up screw 6 at the sidepiece of truncated cone 3, make ball-joint bolt 5 fixing can not rotations, whole device assembling can finish.
Sphere bolt 5 nuts are the hemisphere bodily form, match with the sphere shape mouth that passes through outer end of hole of interstage sleeve 4, after well lid 2 promoted, hemisphere bodily form nuts just entered in this sphere shape mouth, can avoid well lid to make the shank of bolt bending effectively in lifting, rotation, dilatory process.
Well lid 2 is a dome structure.Its external surface is provided with the anti-skid design 9 of projection, and the upper surface of the anti-skid design 9 of projection is concordant with well lid 2 centres, thereby makes whole well lid 2 external surfaces smooth, and it is steadily current to be convenient to people's walking and vehicle.Its inner surface is provided with reinforcing rib 10 radially, can make well lid 2 more sturdy and durable like this.
Anti-cutting cover 8 is enclosed within on the screw rod of ball-joint bolt 5, and can rotate relative to screw rod, thereby when well lid 2 is in the lifting state, because no origin of force, and the purpose of sawing shank of bolt is cannot succeed.
Fa Lan is carried out on ball-joint bolt 5 surfaces or blackout is handled, and forms topping, can carry out corrosion protection.
For avoiding being provided with the prolongation protective sleeve in the bottom of interstage sleeve 4 at down-hole demounting bolt 5, be about to the bottom lengthening of interstage sleeve 4, make well lid 2 when closing, also bolt 5 afterbodys can be blocked.
Trip bolt 6 gets in the well head ball-joint bolt 5 and then steal well lid 2 and be provided with of unscrewing, dismantle for preventing the someone, and in fact this situation may exist hardly.
The utility model is equally applicable to the drain cover (being commonly called as the water flaw) that the road limit is provided with.
Claims (10)
1, a kind of self-locking antitheft inspection shaft lid comprises well lid bearing (1) and well lid (2), it is characterized in that: be provided with a truncated cone (3) on well lid (2) inner surface; Be provided with the interstage sleeve (4) with this truncated cone (3) loose fit on well lid bearing (1), the top of this interstage sleeve (4) is provided with bolt and passes through the hole; Comprise that also passing this passes through the ball-joint bolt (5) that the hole connects with truncated cone (3), the nuts of this ball-joint bolt (5) is the hemisphere bodily form, and passes through the sphere shape mouth that outer end of hole is provided with cooperation on the interstage sleeve (4).
2, a kind of self-locking antitheft inspection shaft lid according to claim 1, it is characterized in that: described well lid (2) is a dome structure.
3, a kind of self-locking antitheft inspection shaft lid according to claim 2, it is characterized in that: described well lid (2) upper surface is provided with the anti-skid design (9) of projection, and the upper end of this anti-skid design (9) is concordant with well lid (2) centre.
4, a kind of self-locking antitheft inspection shaft lid according to claim 1 and 2 is characterized in that: be with anti-cutting cover (8) on the shank of bolt of described ball-joint bolt (5).
5, according to claim 2 or 3 described a kind of self-locking antitheft inspection shaft lids, it is characterized in that: described well lid (2) inner surface is provided with radial reinforcing rib (10).
6, a kind of self-locking antitheft inspection shaft lid according to claim 1 and 2, it is characterized in that: described ball-joint bolt (5) surface is provided with antirust coat.
7, a kind of self-locking antitheft inspection shaft lid according to claim 4, it is characterized in that: the surface of described ball-joint bolt (5) is provided with antirust coat.
8, a kind of self-locking antitheft inspection shaft lid according to claim 1 and 2, it is characterized in that: the bottom of described interstage sleeve is provided with the prolongation protective sleeve.
9, a kind of self-locking antitheft inspection shaft lid according to claim 4, it is characterized in that: the bottom of described interstage sleeve is provided with the prolongation protective sleeve.
10, a kind of self-locking antitheft inspection shaft lid according to claim 1 and 2, it is characterized in that: the sidepiece of described truncated cone (3) is provided with backing-up screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520095361 CN2780842Y (en) | 2005-02-28 | 2005-02-28 | Self-locking anti-theft manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520095361 CN2780842Y (en) | 2005-02-28 | 2005-02-28 | Self-locking anti-theft manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2780842Y true CN2780842Y (en) | 2006-05-17 |
Family
ID=36762043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520095361 Expired - Fee Related CN2780842Y (en) | 2005-02-28 | 2005-02-28 | Self-locking anti-theft manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2780842Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922156A (en) * | 2010-09-20 | 2010-12-22 | 黄武昌 | Anti-theft safe cover system with safe net frame |
| WO2017197032A1 (en) * | 2016-05-10 | 2017-11-16 | TiteLids, Inc. | Closure systems, debris caps, holder devices, and related technologies |
| CN110158661A (en) * | 2019-06-21 | 2019-08-23 | 徐靖洋 | The dedicated interim cladding system of well lid |
| CN110656659A (en) * | 2019-09-17 | 2020-01-07 | 中建泓泰通信工程有限公司 | Communication optical cable well and construction method thereof |
-
2005
- 2005-02-28 CN CN 200520095361 patent/CN2780842Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922156A (en) * | 2010-09-20 | 2010-12-22 | 黄武昌 | Anti-theft safe cover system with safe net frame |
| WO2017197032A1 (en) * | 2016-05-10 | 2017-11-16 | TiteLids, Inc. | Closure systems, debris caps, holder devices, and related technologies |
| US10344447B2 (en) | 2016-05-10 | 2019-07-09 | TiteLids, Inc. | Closure systems, debris caps, holder devices, and related technologies |
| CN110158661A (en) * | 2019-06-21 | 2019-08-23 | 徐靖洋 | The dedicated interim cladding system of well lid |
| CN110656659A (en) * | 2019-09-17 | 2020-01-07 | 中建泓泰通信工程有限公司 | Communication optical cable well and construction method thereof |
| CN110656659B (en) * | 2019-09-17 | 2021-04-30 | 中建泓泰通信工程有限公司 | Communication optical cable well and construction method thereof |
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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 |