CN2157271Y - Theft lock for manhole cover - Google Patents
Theft lock for manhole cover Download PDFInfo
- Publication number
- CN2157271Y CN2157271Y CN 93215599 CN93215599U CN2157271Y CN 2157271 Y CN2157271 Y CN 2157271Y CN 93215599 CN93215599 CN 93215599 CN 93215599 U CN93215599 U CN 93215599U CN 2157271 Y CN2157271 Y CN 2157271Y
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- lock
- lock core
- slingshot
- pellet shot
- core
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- Expired - Lifetime
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Abstract
A lock of a theft lock for manhole cover core is composed of an astray bullet subgroup lock core and a plurality of ofgroups of dual fail-safe bullet sub-lock cores and a lock body is equipped with a lock core non-turning device that prevents empty locking, a longitudinal positioning device and a transverse positioning device of the lock core shaft, a spacing groove that prevents over rotation and a latch bolt pulling rope wire wrapping groove. The lock core opening is equipped with a swing type water and dirt retaining cover. The lock body is installed on a shaft cover frame through a column and a lock casing is installed on the bottom of the shaft cover through a fulcrum. When the shaft cover is placed to be plain, the lock casing is covered outside the lock body and the latch bolt is extruded into the lock casing and then locking is implemented. A handle of the key rotates and the latch bolt is made to depart from a latch bolt box and then the lock is unlocked. The lock can lock firm, the performances of theft protection and being anti-rust are good, the utility model can be used conveniently and suits for being installed on various present shaft covers.
Description
The utility model belongs to mechanical locking device, is applicable to the theftproof lock of installing and using on the various well lids.
Present domestic well lid, general configuration lock not, easily make the vehicle that drives fast hit from or stolen, casualties or traffic accident very easily take place, bring loss harm for national wealth and personal safety.
In order to solve the anti-problem of turning over of manhole cover anti-theft, prior art discloses a kind of anti-stealing manhole cover device (CN2104882U), manhole antitheft lock and its private key (CN2083616U) etc., the lid of its weak point lock core all is contained on the through hole of well lid external surface, as the lock the unlatching plush copper or lock shaft in the through hole of well lid, the lid Yi Beiren of lock core takes down, common people can both open locking device or lock with general tool, the antitheft anti-problem of turning over of well lid is not resolved fully, this class locking device exists theftproof performance poor, weak points such as the easy rust of lock core.
The goal of the invention of the utility model manhole antitheft lock, in order to overcome the prior art weak point, on existing general well lid and well lid frame, configuration one is manhole antitheft lock, and it is convenient that locking is opened, and locks solid and reliable, can antirust, waterproof and dustproof, anti-theft feature is strong, has the well lid managerial personnel only, just can open lock with specific supporting private key.
The objective of the invention is to realize, shown in accompanying drawing 1-8 by following technical scheme.
Fig. 1 is the general assembly cut-away view of the utility model manhole antitheft lock;
Fig. 2 is the lock body vertical view of the utility model manhole antitheft lock;
Fig. 3 is the dual fail-safe pellet shot from a slingshot core B-B cut-away view of the utility model manhole antitheft lock;
Fig. 4 is the figure of lock core shaft of the utility model manhole antitheft lock;
Fig. 5 is the swing type door cover front view of the utility model manhole antitheft lock;
Fig. 6 is the swing type door cover vertical view of the utility model manhole antitheft lock;
Fig. 7 is the key elevation of the utility model manhole antitheft lock;
Fig. 8 is the key upward view of the utility model manhole antitheft lock;
Table one, manhole antitheft lock component list
Lock body 1 lock housing 2 keys 3
Fore-set 7 supports 8 well lids 9
Well lid key port 10 well lid bottom surfaces 11 well lid framves 12
Lock body main body base 19 lock body bottoms 20 lock core shafts 21
Lock core port 22 positioning pipes 23 mudholes 24
Latch bolt spring 28 hold-down screws 29 horizontal pellets shot from a slingshot 30
The horizontal pellet shot from a slingshot 33 of horizontal pellet shot from a slingshot post 31 horizontal pellet shot from a slingshot spring 32 insurances
The vertical pellet shot from a slingshot 36 of horizontal pellet shot from a slingshot spring 35 insurances of insurance spreader 34 insurances
Vertical pellet shot from a slingshot spring 38 non-returns of vertical pillar 37 insurances of insurance change pellet shot from a slingshot 39
Non-return changes pellet shot from a slingshot spring 40 lock core spacer pins 41 vertical raised lines 42
Lock core shaft's outer wall 43 horizontal lock cylinder keyhole 44 insurance pellet shot from a slingshot core keyholes 45
One group of horizontal bullet groove 46 non-return changes bullet groove 47 lock core rotary spacing grooves 48
The horizontal bullet groove 51 of winding slot 49 locating holes, 50 insurances
The vertical bullet groove 52 of insurance is covered 53 Xiamen cover 54 to the doorstep
Describe the technical scheme and the architectural feature of this manhole antitheft lock in detail below in conjunction with embodiment and accompanying drawing.
Manhole antitheft lock mainly is made up of lock body (1), lock housing (2) and key (3) as shown in Figure 1.Lock body mainly comprises lock body main body base (19), lock body bottom (20), lock core shaft (21), lock core, dead bolt (25), latch bolt spring (28), lock core spacer pin (41) as shown in Figure 1, 2, it is characterized in that:
1, lock body (1) as shown in Figure 1.Lock core is made up of horizontal pellet shot from a slingshot group lock core and some groups of dual fail-safe lock cylinders.Lock body (1) is provided with lock core non-return rotary device--and the lock core non-return changes pellet shot from a slingshot (39), the lock core non-return changes pellet shot from a slingshot spring (40), and lock core shaft (21) is provided with corresponding non-return changes bullet groove (47); Being provided with the vertical, horizontal positioner of lock core shaft (21)--lock core shaft's positioning pipe (23) is made located lateral, lock core spacer pin (41) is made longitudinal register; Be provided with lock core rotary spacing groove (48) on pin mandrel (21), the angle range of rotation lock mandrel (21) avoids breaking dead bolt stay cord (26) during the control key unlocking; Lock body (1) bottom is provided with column (4) and is provided with draining mudhole (24), and lock body (1) is fixed on the well lid frame (12) with cross bar (58), tight loop (5), trip bolt (6) by column (4).
2, lock housing (2) as shown in Figure 1.Lock housing (2) top one side is provided with fore-set (7), and lock housing (2) is fixed on the well lid bottom surface (11) with some supports (8) by fore-set (7).Well lid (9) covers at ordinary times, and lock housing (2) is gone into lock body (1) cover in the lock housing (2).
3, on the lock body main body base (19) of lock body (1), dead bolt (25) is housed, dead bolt stay cord (26), dead bolt top spring (27), latch bolt spring (28) are equipped with in the root of the tongue place of dead bolt (25).Dead bolt top spring (27) is through on the dead bolt stay cord (26), and the other end of dead bolt stay cord (26) is fixed on the winding slot (49) of lock core shaft (21) with screw (29).The other end of dead bolt top spring (27), latch bolt spring (28) is fixed on the lock body main body base (19).
Well lid (9) is provided with and lock core port (22) corresponding key port hole (10), when unblanking, the hand key handgrip (14) of exerting oneself, key (3) turns an angle lock core shaft (21), this angle is spacing by lock core stopper slot (48), and dead bolt stay cord (a 26) part is on the winding slot of going into lock core shaft (21) (49), and dead bolt (25) leaves the dead bolt box (13) of lock housing (2), be withdrawn into lock body (1), lock is opened.Otherwise, have only counter-rotation key handgrip (14), dead bolt stay cord (26) is unclamped from winding slot (49), dead bolt (25) is under the elastic force effect of latch bolt spring (28) and dead bolt top spring (27), dead bolt (25) is stretched in the dead bolt box (13) of lock housing (2), lock locking.
In order to prevent that the sky lock from promptly missing lock, being provided with the lock core non-return on the lock core of lock body (1) changes pellet shot from a slingshot (39), non-return commentaries on classics pellet shot from a slingshot spring (40), and lock unlatching back key (3) still can not be extracted.Have only and firmly reverse handgrip (14), make lock core non-return pellet shot from a slingshot (39) suppress the lock core non-return and change pellet shot from a slingshot spring (40), lock core shaft (21) is discharged revolution, the idle position when just key (3) reverses go back to insertion lock core shaft (21), key this moment (3) could take out.Key (3) takes out from lock body (1), and expression dead bolt (25) has protruded in the dead bolt box (13), and link is extracted in the reversing of this key (3) revolution, prevents that the mistake lock from taking place, and promptly avoids occurring empty lock.
4, key (3) is shown in Fig. 7,8.Key body (16) bifurcated divides support body for several keys, establishes long handle (15) on the key body (16), and long handle (15) face is provided with vertical oil groove (17), key hanging hole (18), and long handle (15) upper end is furnished with movable handgrip (14).Key body (16) bifurcated key divides the number of support body to equate with the quantity of horizontal pellet shot from a slingshot group lock core and dual fail-safe lock cylinder.Lock core is set increases, the key that matches with it divides that support body is also corresponding to be increased, thereby the anti-theft feature of manhole antitheft lock strengthens.Each key divides the shape of support body to be complementary with the position of each lock core in the lock core shaft (21).
The shank of the key (15) is a cylindricality, after key (3) inserts lock core shaft (21), the shank of the key (15) should exceed the well lid face of well lid (9), so on the one hand handgrip (14) is inserted in the handle (15) easily, witness marker that again can be when putting well lid (9) on the other hand, simultaneously can indicating lock empty lock whether.Key body (16) divides the thickness of support body can not be thinner than 2mm.
5, the lock core of lock body (1) as shown in Figure 1, 2, 3.Lock core is the core of lock.General lock only is provided with horizontal pellet shot from a slingshot group lock core, and horizontal pellet shot from a slingshot group lock core is made up of horizontal pellet shot from a slingshot (30), horizontal pellet shot from a slingshot post (31), horizontal pellet shot from a slingshot spring (32).The utility model manhole antitheft lock except that being provided with horizontal pellet shot from a slingshot group lock core, is also set up some groups of dual fail-safe lock cylinders, and every group of dual fail-safe lock cylinder is to be intersected in length and breadth mutually by horizontal lock cylinder and vertical pellet shot from a slingshot core to constitute.Its horizontal stroke, vertical pellet shot from a slingshot head push up in lock core shaft (21) each other mutually.When unblanking, each fork branch support body of key body (16) is opened lock core separately respectively simultaneously, and lock just can be opened, thereby has increased theftproof performance.Especially dual fail-safe lock cylinder, the key supporting with this group lock core divides support body, must open the vertical pellet shot from a slingshot core of horizontal pellet shot from a slingshot core of insurance and insurance synchronously and could open, and played the dual fail-safe safety effect.
The horizontal pellet shot from a slingshot core of dual fail-safe is made up of insurance horizontal pellet shot from a slingshot (33), insurance spreader (34) and the horizontal pellet shot from a slingshot spring of insurance (35).The vertical pellet shot from a slingshot core of dual fail-safe is made up of the vertical pellet shot from a slingshot (36) of insurance, the vertical pillar (37) of insurance and the vertical pellet shot from a slingshot spring (38) of insurance.Horizontal, the vertical pellet shot from a slingshot (33) of insurance, (36) are contained in the lock core shaft (21), horizontal, the vertical pillar (34) of insurance, (37), horizontal, the vertical pellet shot from a slingshot spring (35) of insurance, (38), be arranged in proper order respectively separately on the lock body main body base (19), its position should horizontal with insurance, vertical pellet shot from a slingshot (33), (36) position in lock core shaft (21) is corresponding.Wherein the vertical pellet shot from a slingshot core of insurance is provided with cannelure, and the end opening of pod is towards main body base (19) bottom, in the long-pending hole of anti-sealing.
6, swing type shelves water shelves dust hood is shown in Fig. 1,5,6.Form by door cover, cover wall (55), top spring (56), turning cylinder (57).The door cover links to each other with cover wall (55) by turning cylinder (57) on one side, relies on top spring (56) to support.When unblanking, under the thrust of key (3), the door cover can feed in the lock core port of lock core shaft (21) key (3) to lower swing.The door cover can adopt single page door cover or doudle leaf door cover.
Be example explanation (seeing Fig. 1,5,6) with the doudle leaf door cover below: the setting height(from bottom) H of cover (53) is greater than the width L that covers (53) to the doorstep to the doorstep, the width L of cover (53) is greater than the diameter D of the top end face (60) of lock core shaft (21) to the doorstep, behind the bottom, Xiamen cover (54) width L1 is no more than the outmost turns of lock core port (22) and is advisable with Xiamen cover (54) in the installation site of Xiamen cover (54).To guarantee that key (3) can feed lock core port (22) smoothly.Be overlapped in Xiamen cover (54) in the middle of the cover (53) to the doorstep, the gross area of upper and lower door cover (53), (54) is not less than the twice of the gross area of lock core port (22).
If adopt single page door cover, then single page door cover setting height(from bottom) H is greater than door cover width L, and its width L is greater than the diameter D of the last top end face of lock core shaft, and the area of door cover is not less than the twice of the gross area of lock core port (22).
7, lock core shaft (21) as shown in the figure, key (3) is stirred each lock core by rotation lock mandrel (21), so lock core shaft (21) is provided with the key port hole that equates with the branch support body number of key body (16), as horizontal lock cylinder keyhole (44), dual fail-safe lock cylinder keyhole (45).In horizontal lock cylinder keyhole (44), also be provided with vertical raised line (42), prevent that horizontal pellet shot from a slingshot (30) from ejecting.Lock core shaft (21) top is provided with one group of horizontal bullet groove (46).Lock core shaft (21) bottom is provided with the horizontal stroke of several dual fail-safe lock cylinders, vertical bullet groove, as insures horizontal bullet groove (51), the vertical bullet groove (52) of insurance, positioning pipe installing hole (50).In addition on the axle outer wall (43) at lock core shaft (21) middle part, be provided with non-return bullet groove (47), lock core rotary spacing groove (48), dead bolt stay cord winding slot (49), the area of the last top end face (60) of lock core shaft (21) is greater than the area sum of each lock core key ingate.
For lock body (1) assembling needs, be provided with pilot hole (59) in addition, after lock body (1) assembling finishes lock body bottom (22) covered on pilot hole (59) in the bottom of lock body main body base (19).
Accompanying drawing 1-8 is the embodiment of the utility model manhole antitheft lock, and existing the present embodiment will be explained:
1, suitable for lock housing (2) is cooperated with lock body (1), lock core (1) is all cylinder iron made integral body with column (4) and lock housing (2) with fore-set (7).To guarantee the well lid face of the shaft centre line of lock core shaft (21) during installation perpendicular to well lid (9).Adjust fore-set (7) in the installation site of well lid (9), lock housing (2) can be covered on the lock body (1) at ordinary times smoothly when well lid (9) covers.When key (3) inserted the lock core port (22) of lock core shaft (21) from the key port hole (10) of well lid (9) after, key (3) can make that dead bolt (25) is unblocked in dead bolt box (13) to be stretched out or withdraw, and promptly locks or open lock.This explanation manhole antitheft lock is installed in the position suitable on well lid (9) and the well lid frame (12).
2), lock core shaft (21) can adopt metal or plastic material to make.
3), dead bolt stay cord (26) selects the good steel wire of flexible intensity for use, its radical can be according to the increase of lock core number and is suitably increased, and is generally the 2-3 root.
4), shelves water shelves dust hood has adopted the doudle leaf door cover.
The major advantage of the utility model manhole antitheft lock:
1, theftproof performance is strong, is provided with multiple anti-theft measure.As lock body (1) and lock housing (2) all in derrick, latent keeping away property is good, and for example lock core is a plurality of core bodys, particularly set up some groups and intersected each other the dual fail-safe lock core on top mutually in length and breadth, this lock core, nonspecific matched key, lock can not be opened, stronger insurance safety is arranged, be provided with lock core non-return rotary device for another example, can avoid empty lock etc.
2, easy to use.Put down on well lid frame (12) as well lid (9) lid, transfer to key (3), then automatic locking.When unblanking, key handgrip (14) is inserted in the shank of the key (15), key (3) is inserted lock core shaft (21) from the key port hole (10) of well lid (9), rotate handgrip (14) with hand and just can open by a lock.Pull out key handgrip (14) again, just well lid (9) can have been removed.During manhole cover (9), the available the shank of the key (15) that is inserted on the lock body (1) is done witness marker again, and flat well lid (9) lid easily, lock housing (2) covers on outside the lock body (1).
3, locking is firm, and is durable reliable: put in dead bolt box (13) as dead bolt (25), locking firmly.Key when unblanking (3) rotational angle has rotating limit device control, protection dead bolt stay cord (26), and a dead bolt stay cord of can avoiding overexerting is broken.Also be provided with the longitudinal and transverse positioner of lock core shaft, it is unblocked that key (3) is unblanked, reliable operation.
4, waterproof and dustproof, good antirust property are provided with various safeguard measures, can satisfy in outdoor derrick and use under the adverse circumstances.Cover on the lock body (1) as lock housing (2), lock core port (22) is provided with swing type shelves water shelves dust hood, and lock body main body base (19) bottom is provided with draining mudhole (24), and the shank of the key (15) is provided with the measures such as (17) of vertical oil groove.
5, can be applicable on the existing general various well lids and install and use, not need to redesign well lid and well lid frame, broad prospect for its application is arranged.
Claims (7)
1, manhole antitheft lock mainly is made up of lock body, lock housing and key, and lock body mainly comprises by lock body main body base, lock body bottom, lock core shaft, lock core, latch bolt spring, lock core spacer pin, it is characterized in that:
1), the lock core of lock body is made up of horizontal pellet shot from a slingshot group lock core and some groups of dual fail-safe lock cylinders, lock body is provided with lock core non-return rotary device, the vertical, horizontal positioner of lock core shaft, lock core shaft and is provided with lock core rotary spacing groove, dead bolt stay cord, dead bolt top spring are housed on the dead bolt, the dead bolt stay cord on the winding slot of lock core shaft around the people or unclamp, lock core port top is provided with a grade water shelves dust hood, the lock body bottom is provided with column, and is provided with the draining mudhole, and lock body is installed on the well lid frame by column;
2), lock housing top is provided with fore-set, lock housing is fixed on the well lid bottom surface with some pillars by fore-set, well lid covers at ordinary times, lock housing is gone into the lock body cover in the lock housing;
3), the key body of key is branched into the corresponding key of lock core number and divides support body, establishes long handle on the key body, and vertical oil groove is arranged on the handle face, the pommel head is furnished with movable handgrip.
2, manhole antitheft lock according to claim 1 is characterized in that the dual fail-safe lock cylinder is to be intersected in length and breadth mutually by vertical pellet shot from a slingshot core and horizontal pellet shot from a slingshot core to constitute, and the pellet shot from a slingshot head of longitudinal and transverse pellet shot from a slingshot core pushes up in lock core shaft each other mutually.
3, according to claim 1,2 described manhole antitheft locks, it is characterized in that longitudinal and transverse pellet shot from a slingshot core is made up of pellet shot from a slingshot, pillar and pellet shot from a slingshot spring, pellet shot from a slingshot is placed in the lock core shaft, and pillar, pellet shot from a slingshot spring are arranged on the lock body main body base in proper order, and its position should be corresponding with pellet shot from a slingshot position in the lock core shaft.
4, manhole antitheft lock according to claim 1 is characterized in that each key divides the shape of support body to be complementary with the position of each lock core in the lock core shaft.
5, manhole antitheft lock according to claim 1 is characterized in that lock core non-return rotary device, and being changes bullet groove by non-return commentaries on classics pellet shot from a slingshot core and non-return to constitute, respectively on the lock body main body base and in the lock core shaft.
6, manhole antitheft lock according to claim 1 is characterized in that the horizontal positioning device of lock core shaft, adopts hollow section to be installed on the bottom of lock body main body base, and the caliber of hollow section is connected with the draining mudhole of lock body main body base bottom.
7, manhole antitheft lock according to claim 1 is characterized in that the shelves water shelves dust hood on lock core port top, is made up of cover wall, door cover, top spring, turning cylinder, and covering can be to lower swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93215599 CN2157271Y (en) | 1993-06-08 | 1993-06-08 | Theft lock for manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93215599 CN2157271Y (en) | 1993-06-08 | 1993-06-08 | Theft lock for manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2157271Y true CN2157271Y (en) | 1994-02-23 |
Family
ID=33796033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93215599 Expired - Lifetime CN2157271Y (en) | 1993-06-08 | 1993-06-08 | Theft lock for manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2157271Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667492A (en) * | 2019-01-07 | 2019-04-23 | 厦门美科安防科技有限公司 | A kind of server cover board lock |
| CN109826236A (en) * | 2019-04-01 | 2019-05-31 | 河南传通电子科技有限公司 | A kind of adjustable protection well lid being arranged in hoistway |
-
1993
- 1993-06-08 CN CN 93215599 patent/CN2157271Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667492A (en) * | 2019-01-07 | 2019-04-23 | 厦门美科安防科技有限公司 | A kind of server cover board lock |
| CN109667492B (en) * | 2019-01-07 | 2023-09-05 | 厦门美科安防科技股份有限公司 | Server cover plate lock |
| CN109826236A (en) * | 2019-04-01 | 2019-05-31 | 河南传通电子科技有限公司 | A kind of adjustable protection well lid being arranged in hoistway |
| CN109826236B (en) * | 2019-04-01 | 2023-12-26 | 河南传通电子科技有限公司 | Adjustable protection well lid arranged in well |
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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 | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |