CN2921212Y - Permanent magnetic manhole cover lock - Google Patents
Permanent magnetic manhole cover lock Download PDFInfo
- Publication number
- CN2921212Y CN2921212Y CN 200620117957 CN200620117957U CN2921212Y CN 2921212 Y CN2921212 Y CN 2921212Y CN 200620117957 CN200620117957 CN 200620117957 CN 200620117957 U CN200620117957 U CN 200620117957U CN 2921212 Y CN2921212 Y CN 2921212Y
- Authority
- CN
- China
- Prior art keywords
- lock
- runner
- stainless steel
- permanent magnetic
- steel sleeve
- 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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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to a permanent magnetic manhole cover lock, which comprises a lock barrel, a lock sheath, a lock cover, a fixed bolt and a lock-tongue. The lock barrel consists of a permanent magnetic disk, a runner and an annulet. A keyhole is arranged on the centre of the lock barrel and provided with a stainless steel sleeve in which the size and shape match those of the keyhole. A runner is jacketed outside the stainless steel sleeve. An annular groove is provided along the arc in the medial of the runner axis. The magnetic disk is fixed inside the groove, in which one half is pole N and the other half id pole S. The sealed connection is among the stainless steel sleeve, the lock sheath and the lock cover. The rotatable annulet fixed in the medial of runner circumference is in linear motion through the lock-tongue driven by a key and a spring. The hole for the lock-tongue in-and-out is provided on the lock sheath bottom. With the adoption of the matching annulet of steel structure, the utility model is with small friction and unlocking force so that the unlocking is easy. The steel pieces are connected and in the making of the permanent magnet of high magnetic field, with great magnetic force, high reliability, permanent non-demagnetization and long life.
Description
Technical field
The utility model relates to a kind of permanent magnetic pattern manhole cover lock, belongs to road equipment, maintenance field.
Background technology
Because constantly extend in the city, make underground utilities more and more grow (comprising communication, electric power, municipal administration, natural gas, tap water, cable television etc.), therefore the manhole well lid device that is absolutely necessary, along with being on the increase of well lid quantity, but the well lid loss situation is also serious day by day, and serious threat is to people's life and safety.In order to prevent losing of well lid, the pattern manhole cover lock that has occurred multiple model on the market, mainly contain mechanical type, magnetic-type two big classifications, mechanical type is owing to considering to do too simply at underground reason key such as get rusty, copied and opened easily, simultaneously unlocking force is big, and labour intensity is big, to antitheft be not very effective.The structure of magnetic-type lock is reasonable inadequately, every the magnetic weak effect, and the magnet demagnetization, magnetic force diminishes, and can not unblank, and makes troubles to the user.
The utility model content
The purpose of this utility model is to overcome problems of the prior art, and a kind of permanent magnetic pattern manhole cover lock is provided, this pattern manhole cover lock effective every magnetic, good anti-theft effect.
The technical scheme that its technical problem that solves the utility model adopts is as follows: permanent magnetic pattern manhole cover lock of the present utility model, comprise lock core, lock tube, locking closure, set bolt, dead bolt, lock core comprises permanent magnetic sheet, runner and steamboat, middle part at lock core is provided with keyhole, the keyhole place is provided with stainless steel sleeve big or small and that shape matches with it, outside stainless steel sleeve, be with runner, the intracardiac side of runner shaft has an annular groove along arc, magnetic sheet is fixed in the groove, half of magnetic sheet be the N utmost point half be the S utmost point, stainless steel sleeve, be to be tightly connected between lock tube and locking closure, inside circumference at runner is fixed with rotatable steamboat, steamboat drives the dead bolt moving linearly by key and spring, is provided with the hole of coming in and going out for dead bolt in the bottom of lock tube.
What described magnetic sheet was fixed on the interior employing of groove is that fluid sealant carries out adhering and sealing.
Being tightly connected between described stainless steel sleeve, lock tube and locking closure is the fluid sealant sealing of adopting.
It is to fix or screw by rivet that the inside circumference of described runner is fixed with rotatable steamboat.
The utility model is the key insertion keyhole with band magnetic, utilize the S utmost point and the N utmost point in the cylindrical permanent magnet, under the effect of magnetic force, produce torsion, the S utmost point and the N utmost point that drive in the permanent magnet in the runner groove move in a circle, change 90 ° clockwise or counterclockwise, the dead bolt moving linearly stretches out from the hole or withdraws, thereby has realized the switch of lock.
The beneficial effects of the utility model:
1 the utility model adopts steel work to cooperate steamboat, and frictional force is little, and unlocking force is little, unblanks easily.
Adopt the fluid sealant welding around 2 magnets and between the runner, steel part is connected to form the permanent magnet of highfield, and magnetic force is big, reliability height, never demagnetization, and the life-span is long.
3 keys size and length are held comfort design according to human body, good looking appearance, suitable.
Description of drawings
Fig. 1 is the utility model assembly structure schematic diagram;
Fig. 2 is a trivial cored structure schematic diagram of the present utility model;
Fig. 3 shuts view for the utility model;
Fig. 4 is the utility model unlocking condition schematic diagram;
The schematic diagram that Fig. 5 locks together well lid and walling crib for this lock.
Below in conjunction with accompanying drawing the utility model is further described.
The specific embodiment
Referring to figs. 1 through Fig. 4 is a specific embodiment of the utility model permanent magnetic pattern manhole cover lock, comprise lock core, lock tube 1, locking closure 5, set bolt 8, dead bolt 3, lock core comprises permanent magnetic sheet 7, runner 6 and steamboat 9, be provided with keyhole 10 at the middle part of lock core, keyhole 10 places are provided with stainless steel sleeve 2 big or small and that shape matches with it, outside stainless steel sleeve 2, be with runner 6, there is an annular groove inboard, runner 6 axle center along arc, magnetic sheet 7 is fixed in the groove, half of magnetic sheet 7 be the N utmost point half be the S utmost point, stainless steel sleeve 2, adopt fluid sealant to connect between lock tube 1 and the locking closure 5, inside circumference at runner 6 is provided with the steamboat 9 that fixes with runner 6, steamboat 9 makes dead bolt 3 motions by key and spring 4, is provided with the hole 11 of coming in and going out for dead bolt 3 in the bottom of lock tube 1.
The key of band magnetic is inserted keyhole 10, utilize the S utmost point and the N utmost point in the cylindrical permanent magnet, under the effect of magnetic force, produce torsion, the S utmost point and the N utmost point that drive in the permanent magnetic sheet 7 in runner 6 grooves move in a circle, change 90 ° clockwise or counterclockwise, dead bolt 3 moving linearlies stretch out from hole 11 or withdraw, thereby have realized the switch of lock.
With reference to Fig. 5 is that the permanent magnetic lock that this use is novel is installed on the well lid 12 by screw, and well lid 12 and walling crib 13 are locked together.
Claims (4)
1, a kind of permanent magnetic pattern manhole cover lock, comprise lock core, lock tube, locking closure, set bolt, dead bolt, it is characterized in that: lock core comprises permanent magnetic sheet, runner and steamboat, middle part at lock core is provided with keyhole, the keyhole place is provided with stainless steel sleeve big or small and that shape matches with it, outside stainless steel sleeve, be with runner, the intracardiac side of runner shaft has an annular groove along arc, magnetic sheet is fixed in the groove, half of magnetic sheet be the N utmost point half be the S utmost point, stainless steel sleeve, be to be tightly connected between lock tube and the locking closure, be fixed with rotatable steamboat in the inside circumference of runner, steamboat drives the dead bolt moving linearly by key and spring, is provided with the hole of coming in and going out for dead bolt in the bottom of lock tube.
2, permanent magnetic pattern manhole cover lock as claimed in claim 1 is characterized in that: what described magnetic sheet was fixed on the interior employing of groove is that fluid sealant carries out adhering and sealing.
3, permanent magnetic pattern manhole cover lock as claimed in claim 1 is characterized in that: being tightly connected between described stainless steel sleeve, lock tube and locking closure is the fluid sealant sealing of adopting.
4, permanent magnetic pattern manhole cover lock as claimed in claim 1 is characterized in that: it is to fix or screw by rivet that the inside circumference of described runner is fixed with rotatable steamboat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620117957 CN2921212Y (en) | 2006-05-31 | 2006-05-31 | Permanent magnetic manhole cover lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620117957 CN2921212Y (en) | 2006-05-31 | 2006-05-31 | Permanent magnetic manhole cover lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921212Y true CN2921212Y (en) | 2007-07-11 |
Family
ID=38253691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620117957 Expired - Fee Related CN2921212Y (en) | 2006-05-31 | 2006-05-31 | Permanent magnetic manhole cover lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921212Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009122203A1 (en) * | 2008-04-05 | 2009-10-08 | Well Ops Uk Ltd | Method of creating an underwater cutting zone, and related plugging devices and methods |
| CN105862926A (en) * | 2016-06-12 | 2016-08-17 | 北京市光环电信设备铸造有限责任公司 | Totally-closed lateral-rotation antitheft novel well cover |
-
2006
- 2006-05-31 CN CN 200620117957 patent/CN2921212Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009122203A1 (en) * | 2008-04-05 | 2009-10-08 | Well Ops Uk Ltd | Method of creating an underwater cutting zone, and related plugging devices and methods |
| CN105862926A (en) * | 2016-06-12 | 2016-08-17 | 北京市光环电信设备铸造有限责任公司 | Totally-closed lateral-rotation antitheft novel well cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20140531 |