CN2390970Y - Locking apparatus - Google Patents

Abstract

The utility model provides a locking apparatus which comprises a groove-shaped locking casing, a locking tongue which extends out of the side wall of the locking casing and a key, wherein, the bottom of the locking casing is provided with through holes. An upper sleeve and a lower sleeve are orderly arranged at the opening end of the locking casing and the space of the through holes at the bottom of the locking casing from top to bottom, and are mutually matched by rotating correspondingly. An upper locking groove and a lower locking groove are respectively arranged on the upper sleeve and the lower sleeve, and middle through holes which correspond to the through holes at the bottom of the locking casing are arranged on the upper sleeve and the lower sleeve. The outer side wall of the lower sleeve is fixed with a shifting fork which extends outward. The shifting fork drives the locking tongue to move in a linear mode by a pin. The locking apparatus can avoid corrosion which results from sludge deposit, and can have the advantages of burliness, durability, simple structure, no easy deformation and effective theft protection.

Description

Locking device

The utility model relates to a kind of locking device, particularly a kind of locking device that is used for the door of well lid or various sealing usefulness.

At present, the door of manhole that various underground pipelines are set or various sealing usefulness generally all is directly well lid to be covered on well head or with closing door to shut, and does not have locking device.Like this, facility in well lid and the well such as electricity cable etc. are easy to stolen and lose, the also easy pressure well lid of automobile, not only caused property loss to a certain degree, and well lid is lost the back if in time do not find and fill, then can cause hazards to the road surface, influence traffic, particularly when light is bad, the personal safety that this manhole that does not have a well lid is also jeopardizing the pedestrian largely; And, there is not locking device, the inoperative personnel enter in the well easily, to some communal facilitys, arbitrarily carry out switch as heating or Water supply switch valve etc., or make the interior facility of well cause damage, influence the normal use of these facilities, therefore, this do not have the well lid of locking device and closing door can not satisfy instructions for use.The patent No. is that the Chinese utility model patent of ZL94231189.2 discloses a kind of well lid blocking device, as shown in Figure 1, below locking fixed head 92 back side lockholes 91 that have a lockhole 91, the flute profile lock plate 93 that an opening makes progress is housed fixedly, a tubular rotating shaft 95 is contained on the hole of being opened at the bottom of the lock plate, there is locked groove rotating shaft 95 upper ends, a driving lever 94 fixedly is equipped with at the middle part, the rotation of rotating shaft 95 can drive driving lever and rotate together, one locking bar also fixedly is housed on fixed head 92, locking bar can be moved forward and backward, its front end extends fixed head 92 edges, the rear end is withstood by a limiting plate fixing on fixed head, the pin card is housed on locking bar, and the termination card of driving lever makes the rotation of driving lever can drive moving forward and backward of locking bar thereon.This well lid blocking device can utilize the well lid shadoof to pin or open well lid as key, but, adopt this structure, because the upper end of tubular rotating shaft is provided with locked groove, the shadoof jack of locked groove and well lid has a segment distance at vertical direction, thereby a segment distance arranged between tubular rotating shaft and the well lid, like this, the ponding on ground, mud directly enters the flute profile lock plate that opening makes progress by shadoof jack and corresponding with it lockhole, a part is gone in the well by the orifice flow in the tubular rotating shaft, flow on the base of flute profile lock plate but also have greatly, afterwards, mud can be deposited on the base of flute profile lock plate, easily makes tubular rotating shaft and flute profile lock plate generation corrosion, even make tubular rotating shaft and flute profile lock plate rust cause the tubular rotating shaft in the hole on the flute profile lock plate base, to rotate together, thereby cause the well lid blocking device to damage, can't open well lid again, therefore, the well lid blocking device of this structure is not durable in actual use, can not satisfy instructions for use.In addition, this well lid blocking device also fixedly is equipped with the locking bar that can move forward and backward on fixed head, and the termination of driving lever is stuck on the pin card set on the locking bar, and the rotation of rotating shaft drives driving lever and rotates together, moves forward and backward thereby drive locking bar.Like this, need to fixedly mount parts such as locking bar on fixed head, structure is complicated.Simultaneously, this well lid blocking device is a key with general well lid shadoof, though can unify to use same key, also just because this, this general shadoof key is easy to be copied, thereby can not play good antitheft effect; And when the lock plate of this structure bottom placed ground, the bottom easily was out of shape because of bump, and the tubular rotating shaft is offset, and caused the shadoof lockhole to depart from the tubular rotating shaft and shadoof can't be inserted locked groove and open well lid.

The purpose of this utility model is to overcome above-mentioned defective, and a kind of locking device is provided, and can avoid the accumulation of mud and the corrosion that causes damages, and is durable, simple in structure, not yielding, and can be effectively antitheft.

To achieve these goals, the utility model provides a kind of locking device, the lock housing that comprises a flute profile, one stretches out the dead bolt and a key of this lock housing sidewall, the bottom surface of this lock housing is provided with through hole, cover and one is trapped between the through hole of the openend that from top to bottom places lock housing successively and lock housing bottom surface and is cooperated rotatably each other on one, should go up cover and this time puts and is respectively equipped with locked groove with following locked groove and be provided with and the corresponding intermediate throughholes of the through hole of lock housing bottom surface, the lateral wall of trapping is fixed with an outwardly directed shift fork, and this shift fork drives this dead bolt straight line by a pin and moves.

The utility model also can further comprise following technical characterictic: be inserted in this traps the lower end of going up cover, on overlap and trap between the openend and lock housing bottom surface that is resisted against lock housing.

Following locked groove can be locked groove under two " L " shapes, and level height difference but direction are located on the sidewall of trapping in the same manner; Last locked groove be two can with two following locked grooves corresponding respectively communicate be located at groove on the cover sidewall.

Be provided with two projectioies that can match on the key with two last locked grooves and following locked groove.

Shift fork is provided with cotter slot, the upper end of pin is arranged in this cotter slot, and the cotter slot on the shift fork is stretched out in the lower end of pin, passes the pin-and-hole on the dead bolt, insert in the set guide groove in corresponding position on the lock housing inner bottom surface, this guide groove along the switch direction of dead bolt along the straight line setting.

The upper surface of last cover can be provided with sealing device; The lower surface of trapping can be provided with sealing device.

Locking device also can comprise a Z-shaped deck.

The upper surface of lock housing can be blocked and established a cover plate, and this cover plate is provided with and the corresponding hole of through hole, lock housing bottom surface; This cover plate and on put and can be provided with stopping means; This stopping means comprises: on overlap protruding two place's cross bars on the sidewall, stretch out corresponding two pins on the cover plate respectively downwards, what two positions that pin is forward and reverse to block cross bar when rotating corresponded respectively to this locking device opens position and off-position.

Can be marked with butter in the cavity of lock housing.

Operating principle of the present utility model and effect are as follows: will trap, dead bolt, pin, after internal constructions such as last cover assemble, lock housing is fixed in the back side of various manholes or closing door, during use, the upper surface that the last locked groove of key insertion is moved downward to down locked groove is stopped by this upper surface, because last locked groove can communicate in a certain position is corresponding with following locked groove, therefore, screw key, thereby locked groove drives and goes up and then rotation of cover in the drive, key drives when upward locked groove rotates to the position corresponding with following locked groove, key continues to lower slider along following locked groove, until the base that slides into down locked groove, then, continue screw key, driving down, thereby locked groove drives the and then rotation of trapping, be fixed in the also and then rotation of shift fork that puts down, again because the pin upper end is positioned at cotter slot set on the shift fork, therefore the rotating band untie-sell of shift fork nail moves, the lock housing bottom surface is provided with line channel, insert in the guide groove after passing pin hole on the dead bolt pin lower end, therefore pin can only move as straight line, also promptly trap and the rotating band untie-sell of shift fork nail moves as straight line in guide groove, thereby driving dead bolt moves as straight line, guide groove is provided with along the switch direction of dead bolt, and therefore, rotation is trapped, can make dead bolt stretch out the closing door edge forward and with it pinning, perhaps withdrawal is untied the lock of closing door backward.After treating that sealing is pinned, key upwards is drawn to breaks away from down locked groove and still in last locked groove the time, screw key overlaps in drives and rotates, and with last locked groove whiz and the corresponding position that communicates of following locked groove, extracts key then out, can be with the closing door locking.In the time of need opening, the position that the locked groove correspondence communicates about still by aforesaid operations key being rotated to is that rotatable trapping makes the dead bolt withdrawal then, opens locking device again.

When locking device of the present utility model is used for well lid, this locking device is fixed in the side at the well lid back side, the opposite side at the well lid back side is fixed " Z " shape deck, and the well lid back side is fixed in the upper end of " Z " shape deck, and the well lid edge is stretched out in its lower end.During use, the Z that is fixed with well lid " end of shape deck puts into well head earlier; and make Z " base of shape deck is stuck on the well seat, then well lid is fixed with an end cap of locking device at well head, key is pressed the aforesaid operations method insert upward locked groove and following locked groove, screw key makes in the dead bolt withdrawal well lid edge, well lid can be covered well head, then, screw key extend out to outside the well lid edge dead bolt, key is drawn to the last locked groove whiz and the corresponding position that communicates of following locked groove that will go up cover under breaking away from behind the locked groove, well lid promptly is lockable again; In the time of need opening well lid, key inserted locked groove as stated above and by screw key and last cover with the locked groove correspondence is communicated, continue screw key then and make the and then rotation of trapping, drive dead bolt and move as straight line, withdrawal backward, locking device is promptly untied, an end that well lid is fixed with locking device lifts then, with the well lid translation, the lower end of " Z " shape deck is broken away from and seat again, can mention whole well lid then.

Because last cover and the upper surface and the bottom surface of trapping and being resisted against lock housing, and, on overlap, trap and lock housing between also can be provided with sealing device, as sealing mat etc., also can in the lock housing cavity, annotate butter in addition, like this, water can only flow into along the through hole of last cover and through hole of trapping and lock housing bottom surface in the well, and can not enter the cavity of lock housing, therefore, mud can not be deposited in the flute profile lock housing, can prevent locking device generation corrosion and cause locking device to damage, therefore, locking device of the present utility model is durable in actual use, and the life-span is long.In addition, drive dead bolt and move thereby locking device of the present utility model directly drives pin by shift fork, and needn't fixedly mount parts such as locking bar more in addition, therefore, structure is simpler.Simultaneously, the key of locking device of the present utility model has the determining positions of locked groove, it can be made general structure, also can change the position and the height of locked groove, thereby change the key that matches with it, it is made the form one to one of the corresponding locking device of a key, like this, key is difficult for being copied, thereby can play good antitheft effect; And the lock housing bottom all places lock housing inside for plane and upper and lower sleeve in the locking device of the present utility model, when placing ground, can not make it distortion.

Below in conjunction with drawings and Examples the utility model is elaborated:

Fig. 1 is existing well lid locking schematic representation of apparatus;

Fig. 2 is the sectional drawing of a kind of embodiment of locking device of the present utility model;

Fig. 3 is the vertical view of middle lock housing embodiment illustrated in fig. 2;

Fig. 4 is a part three-dimensional exploded view embodiment illustrated in fig. 2;

Fig. 5 is an A-A sectional view embodiment illustrated in fig. 2;

Fig. 6 is the schematic diagram of " Z " shape deck in the locking device of the present utility model.

Referring to Fig. 2 and Fig. 4, a kind of locking device, the lock housing 1 that comprises a flute profile, one stretches out the dead bolt 7 and a key of this lock housing 1 sidewall, the bottom surface of this lock housing 1 is provided with through hole 2, cover 6 and one is trapped and 4 is from top to bottom placed between the through hole 2 of the openend of lock housing 1 and lock housing 1 bottom surface successively and cooperate rotatably each other on one, should go up cover 6 and this traps and is respectively equipped with locked groove 61 on 4,62 and following locked groove 41,42 and be provided with through hole 2 corresponding intermediate throughholes 63 and 43 with lock housing 1 bottom surface, 4 the lateral wall of trapping is fixed with an outwardly directed shift fork 3, and this shift fork 3 drives these dead bolt 7 straight lines by a pin 5 and moves.

In the present embodiment, on overlap 6 lower end and be inserted in this and trap in 4, on overlap 6 and trap and 4 be resisted against between the openend and lock housing 1 bottom surface of lock housing 1, as shown in Figure 2.

Following locked groove 41,42 is a locked groove under two " L " shapes, and level height difference but direction are located on 4 the sidewall of trapping in the same manner; Last locked groove 61,62 be two can with two following locked grooves 41,42 corresponding respectively communicate be located at groove on cover 6 sidewalls.

Be provided with two projectioies that can match on the key with two last locked grooves 61,62 and following locked groove 41,42.

Referring to Fig. 2, Fig. 3 and Fig. 4, shift fork 3 is provided with cotter slot 31, the upper end of pin 5 is arranged in this cotter slot 31, the cotter slot 31 on the shift fork 3 is stretched out in the lower end of pin 5, pass the pin-and-hole 71 on the dead bolt 7, insert in the set guide groove 64 in corresponding position on lock housing 1 inner bottom surface, this guide groove 64 along the switch direction of dead bolt 7 along the straight line setting.

The upper surface of last cover 6 is provided with sealing device 85; Trap 4 lower surface is provided with sealing device 84.

Locking device also can comprise a Z-shaped deck 83, as shown in Figure 6.

The upper surface of lock housing 1 is arranged with a cover plate 8, and this cover plate 8 is provided with and lock housing 1 bottom surface through hole 2 corresponding holes 81; Can be provided with stopping means on this cover plate 8 and the last cover 6; This stopping means comprises: on overlap protruding two place's cross bars 65 on 6 sidewalls, stretch out corresponding two pins 83 on the cover plate 8 respectively downwards, what two positions that pin 83 is forward and reverse to block cross bar 65 when rotating corresponded respectively to this locking device opens position and off-position.

Be marked with butter in the cavity 82 of lock housing 1.

The lock housing 1 of locking device of the present utility model can adopt cast iron, makes it to have corrosion resistance preferably.

As Fig. 2, shown in Figure 4, to trap 4, dead bolt 7, pin 5, on overlap after internal constructions such as 6 assemble, lock housing 1 is fixed in the back side of various manholes or closing door, dead bolt 7 is protruding from the hole 66 on lock housing 1 sidewall, during use, because down locked groove 41,42 is a locked groove under two " L " shapes, level height difference but direction are located on 4 the sidewall of trapping in the same manner; And go up locked groove 61,62 be two can with two following locked grooves 41,42 corresponding respectively communicate be located at the groove that overlaps on 6 sidewalls, in the present embodiment, the external diameter of upper end that can make locked groove 61,62 is greater than trapping 4 internal diameter, as shown in Figure 5, thus make the locked groove 61,62 can be respectively and following locked groove 41,42 corresponding communicating; Key is inserted upward locked groove 61,62 are moved downward to down locked groove 41,42 upper surface is stopped by this upper surface, because last locked groove 61,62 with following locked groove 41,42 can communicate in a certain position correspondence, therefore, screw key, locked groove 61 in the drive, thereby 62 drive upward and then rotation of cover 6, key drives goes up locked groove 61,62 rotate to and following locked groove 41, during the position of 42 correspondences, key is along following locked groove 41,42 continue to lower slider, until sliding into down locked groove 41,42 base, then, continue screw key, drive locked groove 41 down, thereby 42 drive the 4 and then rotations of trapping, be fixed in and descend to put 4 also and then rotation of shift fork 3, again because pin 5 upper ends are positioned at cotter slot set on the shift fork 3 31, therefore the rotating band untie-sell of shift fork 3 nail 5 moves, lock housing 1 bottom surface is provided with line channel 64, insert in the guide groove 64 pin hole 71 backs that pin 5 lower ends are passed on the dead bolt 7, therefore pin 5 can only move as straight line, also promptly trap 4 and the rotating band untie-sell of shift fork 3 nail 5 in guide groove 64, move as straight line, thereby driving dead bolt 7 moves as straight line, guide groove 64 is provided with along the switch direction of dead bolt 7, therefore, rotation traps 4, can make dead bolt 7 stretch out the closing door edge forward and with it pinning, perhaps withdrawal is untied the lock of closing door backward.After treating that sealing is pinned, key upwards is drawn to breaks away from down locked groove 41,42 and still in last locked groove 61,62 time, screw key, cover 6 rotations in the drive, with last locked groove 61,62 whizs and following locked groove 41, the 42 corresponding positions that communicate, extract key then out, can be with the closing door locking.In the time of need opening, still by aforesaid operations key being rotated to the position that locked groove 41,42 correspondences up and down communicate, is that rotatable trapping 4 makes the dead bolt withdrawal then again, opens locking device.In the present embodiment, cover plate 8 and last cover 6 are provided with stopping means; This stopping means comprises: on overlap protruding two place's cross bars 65 on 6 sidewalls, stretch out corresponding two pins 83 on the cover plate 8 respectively downwards, what two positions that pin 83 is forward and reverse to block cross bar 65 when rotating corresponded respectively to this locking device opens position and off-position; Like this, when going to, key makes locked groove 61,62 and following locked groove 41, when 42 correspondences communicate, when also promptly going to the opening of this locking device, pin 83 is just in time blocked by cross bar 65, cover 6 is no longer rotated, determine the position of opening of this locking device when being convenient to operate like this, also promptly go up locked groove 61,62 and following locked groove 41, the position that 42 correspondences communicate, only need work as that cover is blocked and be to go up locked groove 61 can not rotate the time, 62 and following locked groove 41, the position that 42 correspondences communicate, and do not need to align locked groove 61 exploratoryly, 62 and following locked groove 41,42, equally, during reverse rotation, when last cover is blocked and can not rotates, be the best fastening position of this locking device.Pin 83 and cross bar 65 can adopt hard metal material to make, and make it to be difficult for deformed damaged.

When locking device of the present utility model is used for well lid, this locking device is fixed in the side at the well lid back side, and the opposite side at the well lid back side is fixed " Z " shape deck 83, as shown in Figure 6, the well lid back side is fixed in the upper end of " Z " shape deck 83, and the well lid edge is stretched out in its lower end.During use, the Z that is fixed with well lid " end of shape deck 83 puts into well head earlier; and make Z " base of shape deck 83 is stuck on the well seat, then well lid is fixed with an end cap of locking device at well head, key is pressed the aforesaid operations method insert upward locked groove 61,62 and following locked groove 41,42, screw key makes in the dead bolt 7 withdrawal well lid edges, well lid can be covered well head, then, screw key extend out to outside the well lid edge dead bolt 7, again key is drawn to and breaks away from locked groove 41 down, to go up the last locked groove 61 of cover after 42,62 whizs and following locked groove 41, the position that 42 correspondences communicate, well lid promptly is lockable; In the time of need opening well lid, with key insert as stated above locked groove 61,62 and by screw key and on overlap and locked groove 41,42 correspondences communicated, continue screw key then and make the and then rotation of trapping, drive dead bolt and move as straight line, withdrawal backward, locking device is promptly untied, an end that well lid is fixed with locking device lifts then, with the well lid translation, make the lower end of " Z " shape deck break away from the well seat again, can mention whole well lid then.

Because the last cover 6 and 4 upper surface and the bottom surfaces that are resisted against lock housing 1 of trapping, and, last cover 6, trap 4 and lock housing 1 between also can be provided with sealing device 85 and 84, as sealing mat etc., also can in lock housing 1 cavity 82, annotate butter in addition, like this, water can only be along last cover 6 and 4 the through hole 63 of trapping, 43 and the through hole 2 of lock housing 1 bottom surface flow in the wells, and can not enter the cavity of lock housing 1, therefore, mud can not be deposited in the flute profile lock housing 1, can prevent locking device generation corrosion and causes locking device to damage, therefore, locking device of the present utility model is durable in actual use, and the life-span is long.In addition, drive dead bolts 7 and move thereby locking device of the present utility model directly drives pins 5 by shift fork 3, and needn't fixedly mount parts such as locking bar more in addition, therefore, structure is simpler.Simultaneously, the key of locking device of the present utility model has the determining positions of locked groove, it can be made general structure, also can change the position and the height of locked groove, thereby change the key that matches with it, it is made the form one to one of the corresponding locking device of a key, like this, key is difficult for being copied, thereby can play good antitheft effect; And lock housing 1 bottom is that plane and upper and lower sleeve all place lock housing 1 inside in the locking device of the present utility model, when placing ground, can not make it distortion and the damage locking device.

In sum, the utility model locking device can be avoided the accumulation of mud and the corrosion that causes damages, and is durable, simple in structure, not yielding, and can be antitheft effectively.

Claims (10)

1, a kind of locking device, the lock housing that comprises a flute profile, one stretches out the dead bolt and a key of this lock housing sidewall, the bottom surface of this lock housing is provided with through hole, it is characterized in that: cover and is trapped between the through hole of the openend that from top to bottom places described lock housing successively and described lock housing bottom surface and is cooperated rotatably each other on one, should go up cover and this time puts and is respectively equipped with locked groove and following locked groove and is provided with the corresponding intermediate throughholes of through hole with described lock housing bottom surface, described lateral wall of trapping is fixed with an outwardly directed shift fork, and this shift fork drives this dead bolt straight line by a pin and moves.

2, locking device according to claim 1 is characterized in that: be inserted in this traps described lower end of going up cover, overlaps on described and trap between the openend and described lock housing bottom surface that is resisted against described lock housing.

3, locking device according to claim 1 and 2 is characterized in that: described down locked groove is a locked groove under two " L " shapes, and level height difference but direction are located on the described sidewall of trapping in the same manner; Described go up locked groove be two can with described two following locked grooves corresponding respectively communicate be located at the described groove that overlaps on the sidewall of going up.

4, locking device according to claim 3 is characterized in that: describedly be provided with two on the key and can go up the projectioies that locked grooves and following locked groove match with described two.

5, locking device according to claim 1, it is characterized in that: described shift fork is provided with cotter slot, the upper end of described pin is arranged in this cotter slot, the cotter slot on the described shift fork is stretched out in the lower end of described pin, pass the pin-and-hole on the described dead bolt, insert in the set guide groove in corresponding position on the described lock housing inner bottom surface, this guide groove along the switch direction of described dead bolt along the straight line setting.

6, locking device according to claim 1 is characterized in that: described upper surface of going up cover is provided with sealing device; Described lower surface of trapping is provided with sealing device.

7, locking device according to claim 1 is characterized in that: described locking device also comprises a Z-shaped deck.

8, locking device according to claim 1 is characterized in that: the upper surface of described lock housing is arranged with a cover plate, and this cover plate is provided with and the corresponding hole of through hole, described lock housing bottom surface; This cover plate and described on put and be provided with stopping means.

9, locking device according to claim 8, it is characterized in that: described stopping means comprises: described going up overlapped protruding two place's cross bars on the sidewall, stretch out corresponding two pins on the described cover plate respectively downwards, what two positions that pin is forward and reverse to block cross bar when rotating corresponded respectively to this locking device opens position and off-position.

10, locking device according to claim 1 is characterized in that: be marked with butter in the cavity of described lock housing.

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