CN201116409Y

CN201116409Y - Lock bolt structure

Info

Publication number: CN201116409Y
Application number: CNU2007201532237U
Authority: CN
Inventors: 刘建忠; 董连坤
Original assignee: Tong Lung Metal Industry Co Ltd
Current assignee: Stanley Security Solutions Taiwan Ltd
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2008-09-17
Anticipated expiration: 2017-07-20

Abstract

A latch structure can be installed on a door panel and can be driven by a lock body, the latch structure comprises a casing, a latch head, a hole and a driving mechanism, wherein the latch head can be placed inside the casing, the front end of the latch head is provided with at least one inclined face, the latch head can be enabled to open the door panel when the latch head does not completely retract into the casing, the inclined face of the latch head can be pushed against the edge of a containing hole of the latch head to enable the latch head to retract into the casing, thereby allowing to open the door, the lateral face of the latch head is provided with the hole for containing a ball, the ball portion projects outside the lateral face of the latch head, the driving mechanism can be installed inside the casing for driving the latch head portion to project outside the casing and retract into the casing alternately.

Description

Latch structure

Technical field

The utility model is a kind of latch structure, is meant a kind of latch structure that is applied to auxiliary lock, and it is smooth and easy that it can make plunger latch head slide.

Background technology

According to known auxiliary lock lock bolt such as U.S. Pat 6364382, this lock bolt comprises the ccontaining plunger latch head of an enclosure interior, and connect a panel in its front end, can be locked in an edge, the ccontaining driver plate in the vertical rear end of this housing, one driving element and a location spring, and the plunger latch head rear end connects driver plate, this driver plate can be accepted the promotion of driving element, make plunger latch head at part extending panel or mobile between the retraction panel fully, during right plunger latch head mobile between extending panel or retraction panel, because the frictional force between plunger latch head and the housing is very big, can produce slides has some setbacks, maybe when being subjected to lateral force when bump, be easy to generate plunger latch head and housing is stuck, can't relative motion; Moreover owing between each element of lock bolt the relation of clearance is arranged, when release, in the time of can causing driving element to drive driver plate pulling lock bolt, plunger latch head within the retraction panel, makes door leaf to open fully.

In view of this, the utility model is to do improvement at the shortcoming of preceding taking off bolt structure, produces a new latch structure.

The utility model content

Main purpose of the present utility model provides a kind of friction little, and the plunger latch head slip is latch structure more smoothly, during release, even if plunger latch head is not if in certain retraction panel, can have influence on the unlatching of door yet.

For reaching above-mentioned purpose, the utility model adopts following structure: a kind of latch structure includes a housing; One plunger latch head is placed in this housing, and this plunger latch head front end has at least one inclined-plane, when this plunger latch head if fully in this housing of retraction the time, open door-plate, the inclined-plane of this plunger latch head can push against the edge of a plunger latch head containing hole, makes in this this housing of plunger latch head retraction, opens the door allowing; And the side of this plunger latch head has a hole, and this hole can a ccontaining ball, and this ball is the side of outstanding this plunger latch head partly; One driving mechanism is installed in the housing, connects and driving plunger latch head shift reciprocately.

This ball is replaceable to be a roller bearing.

This inclined-plane can be arranged at intervals at this plunger latch head front end two sides respectively.

This hole can be arranged at intervals at the two sides of this plunger latch head respectively.

Adopt the said structure scheme, the utlity model has following advantage:

1, the utility model plunger latch head front end is made as the inclined-plane, and if plunger latch head is fully in the retraction housing time, and the inclined-plane of this plunger latch head can push against the edge of plunger latch head containing hole, makes in the plunger latch head retraction housing, and can not have influence on the unlatching of door.

2, the side of the utility model plunger latch head has the hole, and this hole can ccontaining ball or roller bearing, and ball or roller bearing be the side of outstanding plunger latch head partly, and plunger latch head contacts with lock crossbar box by ball or roller bearing, can reduce friction, and makes slip more smooth and easy.

Description of drawings

Fig. 1 is the part exploded perspective view of the utility model latch structure;

Fig. 2 is the outer three-dimensional combination figure of plunger latch head part extending panel of the utility model latch structure;

Fig. 3 is the outer plan view of plunger latch head part extending panel of the utility model latch structure;

Fig. 4 is the outer side view of plunger latch head part extending panel of the utility model latch structure;

Fig. 5 is the sectional drawing of the 5-5 hatching of the utility model latch structure Fig. 3;

Fig. 6 is the outer part sectioned view of plunger latch head part extending panel of the utility model latch structure;

Fig. 7 is the plunger latch head sectional drawing of the outer and plunger latch head containing hole of extending panel slightly of the utility model latch structure;

Fig. 8 is the part exploded perspective view of another specific embodiment of the utility model latch structure.

The critical element symbol description

1 housing, 11 lock crossbar boxs, 12 first junction plates

121 first bending sides, 122 second bending sides 123 the 3rd bending side

124 lugs, 125 prelocalization holes, 126 back locating holes

127 portion's 128 shaft holes, 129 seating surfaces of extending

130 supported holes, 13 second junction plates, 131 holes

Back, 132 prelocalization holes 133 locating holes 134 portion that extends

135 shaft holes, 136 seating surfaces

22 holes, 2 plunger latch heads, 21 inclined-planes

22 ' oblong aperture, 23 balls, 23 ' roller bearing

3 panels, 5 driver plates, 52 rectangle slotted eyes

Transmission wall 522 back transmission walls 523 convex surfaces before 521

524 end faces, 53 sliding surfaces

6 driving elements, 60 projections, 61 through holes

Ejection part 64 first location divisions, ejection part 63 back before 62

65 second location divisions

7 retainer springs, 71 supports, 72 kinks

8 plunger latch head containing holes, 81 edges

The specific embodiment

Elaborate by following preferred embodiment and conjunction with figs..

At first consult Fig. 1 to shown in Figure 3, it is the driving that a kind of latch structure of the present utility model can be accepted a lock body (not shown), this lock bolt comprises a housing 1, the hollow chamber that is formed by a lock crossbar box 11 and first junction plate 12 and second junction plate 13, these lock crossbar box 11 inner ccontaining plunger latch heads 2, and connect a panel 3 in front end, can be for being locked in an edge (not shown), this ccontaining transmission mechanism in housing 1 vertical rear end, this transmission mechanism comprises: a driver plate 5, a driving element 6 and a location spring 7.

The front end of described first junction plate 12 and second junction plate 13 stretches in the aforementioned lock crossbar box 11 and positioning combination, these first junction plate, 12 leading sections have first bending side 121 and second bending side 122, and the rear end has the 3rd bending side 123, extend to form two lugs 124 on the 3rd bending side 123, being consolidated in two holes 131 of second junction plate, 13 rear ends, and be combined into one; This first junction plate 12 and second junction plate 13 through hole that has several to arrange according to the order of sequence again, be respectively prelocalization hole 125,132, back locating hole 126,133 and inwardly concaves the portion that extends 127,134 of shaping, this portion 127,134 that extends has a shaft hole 128,135 and forms seating surface 129,136, and this seating surface 129,136 can be for the support of sliding of a driver plate 5.

Described driver plate 5, front end are placed in the lock crossbar box 11, in order to link this plunger latch head 2; And the rear end has rectangle slotted eye 52 and the central authorities below has sliding surface 53, the perisporium of this rectangle slotted eye 52 forms can be for preceding transmission wall 521, back transmission wall 522 and the convex surface 523 of pushing and pressing, described convex surface 523 has an end face 524, when outside plunger latch head 2 extending panels 3, the end face 524 of this driver plate 5 can face first bending side 121 that is against first junction plate 12, in order to the length of restriction plunger latch head 2 extending panels 3, this sliding surface 53 is positioned on the seating surface 129,136 of housing 1 and slides.

Described driving element 6, it roughly is the flat board of a suitable appearance, this flat board is provided with column type projection 60 at interval, this projection 60 is provided with cross through hole 61 and can passes for the rotating shaft (not shown) of lockset, and before the side that the two ends and the plate body of plate body is orthogonal is provided with ejection position 62, pusher top bit 63 and one first location division 64, second location division 65.

Described retainer spring 7 is a long strip-board shape, and an end has support 71, and the other end has a kink 72, can hook the supported hole 130 of first junction plate 12; Aforementioned content is roughly to practise structure, only underdraws.

As Fig. 1, Fig. 4 and shown in Figure 6, principal character of the present utility model is, plunger latch head 2 front ends form two inclined-planes 21 that are provided with at interval, and have two holes 22 that are provided with at interval on the side, rear end of this plunger latch head 2, can distinguish ccontaining ball 23, and ball 23 can partly protrude in the side of plunger latch head 2, when making plunger latch head 2 be installed on lock crossbar box 11 inside, this plunger latch head 2 contacts with lock crossbar box 11 by ball 23, can reduce friction, and it is comparatively smooth and easy to slide, and when outside the plunger latch head 2 part extending panels 3, if when being subjected to the lateral force bump, driving element 6 also can drive driver plate 5 and drive plunger latch head 2 retractions in panel 3, and it is equally smooth and easy to slide.

As Fig. 1, Fig. 4 and shown in Figure 5, when entire combination, the front end of driver plate 5 and plunger latch head 2 combine, and ball 23 is placed in the hole 22 of plunger latch head 2, and be installed in lock crossbar box 11 together, panel 3, in first junction plate 12 and second junction plate, the 13 formed chamber interior, the sliding surface 53 of this driver plate 5 abuts in the seating surface 129 of first junction plate 12 and second junction plate 13, on 136, and removable mounting is between first junction plate 12 and second junction plate 13, make driver plate 5 can be in housing 1 moving linearly, this driving element 6 is inserted in the shaft hole 128 of first junction plate 12 and second junction plate 13 respectively with the projection 60 that is provided with at interval, in 135, and driving element 6 has preceding ejection part 62 and back ejection part 63, in order to preceding transmission wall 521 and the back transmission wall 522 that promotes driver plate 5, and an end of driving element 6 has first location division 64 and second location division 65 optionally against the plate body of retainer spring 7; The support 71 of this retainer spring 7 abuts against on second bending side 122 of first junction plate 12, kink 72 then is hooked on the supported hole 130 of first junction plate 12, make and form an elasticity position between support 71 and the kink 72, and the plate face of retainer spring 7 can be close to first location division 64 or second location division 65 of driving element 6, so that the operation location of driving element 6 to be provided.

As Fig. 1 and shown in Figure 7, when release, if rotation driving element 6 is when the rear end of housing 1, the pusher top bit 63 of driving element 6, the back transmission wall 522 of driver plate 5 in ejection, driver plate 5 is promoted backward, in order to order about plunger latch head 2 towards lock crossbar box 11 inner retractions, and must door be opened for people, but sometimes because each part of lock bolt has the relation of clearance, after driving element 6 rotates to the precalculated position, and can't be with in the plunger latch head 2 complete retraction panels 3, and make plunger latch head 2 protrude in panel 3 outer (as shown in Figure 7) slightly, so when opening the door, just need utilize the inclined-plane 21 of plunger latch head 2 front ends, be subjected to the pushing and pressing at the edge 81 of plunger latch head containing hole 8, and make in the plunger latch head 2 retraction panels 3, opened door leaf.

The hole 22 and also variable another specific embodiment more as shown in Figure 8 of ball 23 that is installed on hole 22 of plunger latch head 2 sides shown in Figure 1 in addition of the present utility model, wherein the side of plunger latch head 2 has oblong aperture 22 ', this oblong aperture 22 ' can a ccontaining roller bearing 23 ', and other structure is with before to take off embodiment roughly the same.

Only above-mentioned each joint, it only is preferred embodiment of the present utility model, non-in order to limit enforcement of the present utility model, according to the described structural feature of following claim and spirit thereof and for it the equivalence of other simple change is implemented generally, all should be included in the utility model claim.

Claims

1. a latch structure is installed on the door-plate, is subjected to the driving of a lock body, it is characterized in that: include,

One housing;

One plunger latch head is placed in this housing, and this plunger latch head front end has at least one inclined-plane, when this plunger latch head is interior as if complete this housing of retraction, open door-plate, the inclined-plane of this plunger latch head can push against the edge of a plunger latch head containing hole, makes in this this housing of plunger latch head retraction, opens the door allowing; And the side of this plunger latch head has a hole, and this pore volume is put a ball, and this ball is the side of outstanding this plunger latch head partly;

One driving mechanism is installed in the housing, connects and driving plunger latch head shift reciprocately.

2. latch structure as claimed in claim 1 is characterized in that: this ball is replaceable to be a roller bearing.

3. latch structure as claimed in claim 1 is characterized in that: this inclined-plane can be arranged at intervals at this plunger latch head front end two sides respectively.

4. latch structure as claimed in claim 1 is characterized in that: this hole can be arranged at intervals at the two sides of this plunger latch head respectively.