CN2789317Y - Antitheft manhole cover and manhole cover key - Google Patents
Antitheft manhole cover and manhole cover key Download PDFInfo
- Publication number
- CN2789317Y CN2789317Y CN 200520030549 CN200520030549U CN2789317Y CN 2789317 Y CN2789317 Y CN 2789317Y CN 200520030549 CN200520030549 CN 200520030549 CN 200520030549 U CN200520030549 U CN 200520030549U CN 2789317 Y CN2789317 Y CN 2789317Y
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- CN
- China
- Prior art keywords
- key
- manhole cover
- plug
- bayonet lock
- guide rod
- 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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Abstract
The utility model belonging to the field of antitheft manhole covers, and relates to an antitheft manhole cover whose middle is provided with a key jack whose lower side is provided with a pressed plate which is connected with the inner end of a movable clamping pin movably arranged in a movable clamping pin barrel in a transmission mode. The outer end of the movable clamping pin extends out of the manhole cover, and the inner end of the movable clamping pin is elastically connected with the inner side of the movable clamping pin barrel. The utility model provides a manhole cover key matched with the antitheft manhole cover, which comprises a casing, a manual hydraulic pump, a guide rod, a spring, a key plug and a clamping board, wherein the lower end of the casing is provided with the barrel-shaped key plug. The guide rod which can move up and down is arranged in the key plug and is matched with the hydraulic pump in a transmission mode. The top end of the plug is provided with the clamping board whose shape is matched with a key jack. The lower end of the guide rod is elastically connected with the lower end of the casing. The utility model has the advantages of simple structure, low manufacturing cost, convenient use and good antitheft performance.
Description
Technical field
The utility model belongs to anti-stealing manhole cover tool field, particularly a kind of anti-stealing manhole cover and inspection shaft lid key.
Background technology
The inspection shaft lid that uses on the street does not at present have anti-theft feature; substantially all be that flat the seat is arranged on the pedestal; do not need the much strength of expense just can directly remove; therefore this inspection shaft lid is often stolen; form " road trap " one by one, the child who not only plays, passerby and pedestrian by bike fall into these crisis-ridden traps easily, and automobile also may fall into the inside; even cause serious traffic accident, seriously influence people's life security.
The utility model content
The utility model purpose is to provide a kind of inspection shaft lid tool that can be antitheft.
To achieve these goals, the utility model adopts following technical scheme: a kind of anti-stealing manhole cover, be provided with key hole in the middle of the well lid, the key hole downside is provided with stressed pressing plate, stressed pressing plate is in transmission connection with the movable bayonet lock the inner that is slidingly arranged in the movable bayonet lock tube, and well lid is stretched out in the outer end of movable bayonet lock, inner segment is connected with the inboard elasticity of movable bayonet lock letter.
Described key hole is a slot.
Described stressed pressing plate and movable bayonet lock the inner are in transmission connection by cable wire.
The inspection shaft lid key that a kind of and anti-stealing manhole cover is supporting, it comprises housing, hydraulic hand-pump, guide rod, spring, key plug, clamp, the housing lower end is provided with the tubular key plug, moving up and down being arranged in the key plug and with the hydraulic pump transmission of guide rod cooperates, the top of plug is provided with shape and the adaptive clamp of key hole, and the lower end of guide rod is connected with housing lower end elasticity.
Described key plug is a cylindrical shape, and its diameter is smaller or equal to the width of key hole.
The utility model is relatively simple for structure, and cost is cheaper, and is very convenient to use, and theftproof performance is better.
Description of drawings
Fig. 1 is the structural representation of anti-stealing manhole cover;
Fig. 2 is the schematic cross-section of anti-stealing manhole cover;
Fig. 3 is the schematic cross-section of inspection shaft lid key.
The specific embodiment
Embodiment: be provided with key hole 2 in the middle of the anti-stealing manhole cover shown in Fig. 1-2, key hole 2 downsides are provided with stressed pressing plate 8, and stressed pressing plate 8 is in transmission connection by cable wire 6 with movable bayonet lock 4 the inners, and movable bayonet lock 4 is slidingly arranged in the movable bayonet lock tube 3.Movable bayonet lock 4 is cylindrical, and is divided into outer section and thinner inner segment, and inner segment and outer section directly form step, and at inner segment string shock mount 5, spring 5 other ends lean on movable bayonet lock tube 3 inner end plates inboards.Well lid 1 is stretched out in the outer end of movable bayonet lock 4 outer sections, and key hole 2 is a slot.
As shown in Figure 3 with the supporting inspection shaft lid key of anti-stealing manhole cover 1, it comprises housing 10, hydraulic hand-pump 11, guide rod 12, spring 13, key plug 14, clamp 15, housing 10 lower ends are provided with key plug 14, guide rod 12 moving up and down being arranged in the key plug 14 and with hydraulic hand-pump 11 transmissions cooperate, the top of key plug 14 is provided with the adaptive clamp 15 of shape and key hole 2, and the lower end of guide rod 12 is connected by spring 13 elasticity with housing 10 lower ends.
Key plug 14 is cylindrical, and its diameter is smaller or equal to the width of key hole 14.Key plug 14 can be separately parts, then by screw on housing 10, also can be directly and housing 10 be made of one.
When opening the inspection shaft lid, the key hole 2 that the clamp 15 of key plug 14 front ends of inspection shaft lid key is aimed at well lids 1 inserts and revolves and turn 90 degrees, key hole 2 positive downsides are stressed pressing plate 8, the downside of well lid 1 middle part is provided with the circular groove of a diameter more than or equal to clamp 15 catercorner lengths, because key plug 14 is less than or equal to the width of key hole 2, can drives clamp 15 behind the insertion key hole 2 and in groove, rotate freely.Because the clamp 15 of key plug 14 front ends is a rectangle, its length is greater than the width of key hole 2, when inserting key hole 2 and revolving when turning 90 degrees, clamp 15 just can lock together with well lid 1, hold handle 9 and operate hydraulic hand-pump 11 drive guide rods 12 and move down, the spring 13 of compression lower end, the stressed pressing plate 8 that can withstand well lid 1 that moves down of guide rod 12 moves downward, the movable bayonet lock 4 that movable bayonet lock tube is 3 li is in transmission connection by cable wire 6 with stressed pressing plate 8, can drive activity bayonet lock 4 move and compress spring 5 to center of circle direction, well lid 1 inboard also is provided with cable wire guide wheel 7.Thereby can upwards mention inspection shaft lid key after the part of stretching out well lid 1 when movable bayonet lock 4 outer ends is fully retracted and open well lid 1.
Directly the well lid of opening above 1 is put on the well lid pedestal when laying well lid 1, open hydraulic hand-pump 11 valves, stressed pressing plate 8 moves up under the gearing of spring 5, movable bayonet lock 4 moves outward and stretches out well lid 1, finish lock well lid 1, then inspection shaft lid key is revolved and turn 90 degrees and to extract.
Make stressed pressing plate 8 need certain power just can move down by selection, manually can't move it, promptly manually can't open well lid 1 spring 5.
The back side of well lid 1 evenly distributes four movable bayonet locks 4 is set, the tail end of four movable bayonet locks is connected with stressed pressing plate 8 with cable wire, 50 kilograms of the spring forces of each spring detent, 4 spring forces and be 200 kilograms, that is to say on stressed pressing plate, must apply and just can open inspection shaft lid greater than 200 kilograms pressure.It is inspection shaft lid key that per 50 or 100 well lids are joined a special opening instrument.
In the manufacturing process, movable bayonet lock 4, movable bayonet lock tube 3, spring 5, stressed pressing plate 8 need carry out zinc-plated, very easily get rusty because of these parts are installed in the more abominable place of environment.
Claims (5)
1, a kind of anti-stealing manhole cover, it is characterized in that: be provided with key hole in the middle of the well lid, the key hole downside is provided with stressed pressing plate, stressed pressing plate is in transmission connection with the movable bayonet lock the inner that is slidingly arranged in the movable bayonet lock tube, and well lid is stretched out in the outer end of movable bayonet lock, inner segment is connected with the inboard elasticity of movable bayonet lock tube.
2, anti-stealing manhole cover according to claim 1 is characterized in that: described key hole is a slot.
3, anti-stealing manhole cover according to claim 1 and 2 is characterized in that: described stressed pressing plate and movable bayonet lock the inner are in transmission connection by cable wire.
4, the supporting inspection shaft lid key of a kind of and anti-stealing manhole cover, it is characterized in that: it comprises housing, hydraulic hand-pump, guide rod, spring, key plug, clamp, the housing lower end is provided with the tubular key plug, moving up and down being arranged in the key plug and with the hydraulic pump transmission of guide rod cooperates, the top of plug is provided with shape and the adaptive clamp of key hole, and the lower end of guide rod is connected with housing lower end elasticity.
5, the inspection shaft lid key of stating according to claim 4, it is characterized in that: described key plug is a cylindrical shape, and its diameter is smaller or equal to the width of key hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030549 CN2789317Y (en) | 2005-04-25 | 2005-04-25 | Antitheft manhole cover and manhole cover key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030549 CN2789317Y (en) | 2005-04-25 | 2005-04-25 | Antitheft manhole cover and manhole cover key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789317Y true CN2789317Y (en) | 2006-06-21 |
Family
ID=36789649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030549 Expired - Fee Related CN2789317Y (en) | 2005-04-25 | 2005-04-25 | Antitheft manhole cover and manhole cover key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789317Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991655A (en) * | 2014-05-28 | 2014-08-20 | 顾开明 | Manhole cover liner plate with heat preservation performance |
| CN107090857A (en) * | 2017-03-07 | 2017-08-25 | 广州犀鸟工业设计有限公司 | A kind of mining of groundwater well closure construction |
| CN107460892A (en) * | 2017-03-07 | 2017-12-12 | 广州犀鸟工业设计有限公司 | A kind of mining of groundwater well capping apparatus |
| CN107460893A (en) * | 2017-03-07 | 2017-12-12 | 广州犀鸟工业设计有限公司 | A kind of simple closure construction of mining of groundwater well |
| CN112064634A (en) * | 2020-09-01 | 2020-12-11 | 广东汇晟建设有限公司 | Bridge pile foundation structure and construction method thereof |
-
2005
- 2005-04-25 CN CN 200520030549 patent/CN2789317Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991655A (en) * | 2014-05-28 | 2014-08-20 | 顾开明 | Manhole cover liner plate with heat preservation performance |
| CN107090857A (en) * | 2017-03-07 | 2017-08-25 | 广州犀鸟工业设计有限公司 | A kind of mining of groundwater well closure construction |
| CN107460892A (en) * | 2017-03-07 | 2017-12-12 | 广州犀鸟工业设计有限公司 | A kind of mining of groundwater well capping apparatus |
| CN107460893A (en) * | 2017-03-07 | 2017-12-12 | 广州犀鸟工业设计有限公司 | A kind of simple closure construction of mining of groundwater well |
| CN112064634A (en) * | 2020-09-01 | 2020-12-11 | 广东汇晟建设有限公司 | Bridge pile foundation structure 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 |