CN207392909U - A kind of door lock - Google Patents

Abstract

The utility model is related to a kind of door locks, its latch bolt outer end is equipped with one piece or more the tongue piece that can be horizontally rotated, the tongue piece is stretched out from the inclined-plane of latch bolt, and in collide rotation, the driving of door closing procedure and buckle latch bolt is made to bounce back in lock body, while tongue piece is bounced back in lock body together in the gradual retraction latch bolt of this rotation process and with latch bolt.So, the impact force between buckle can effectively be buffered, and the active force with the pull rod axis parallel of latch bolt is dexterously converted into, latch bolt is made more swimmingly to bounce back into lock body, existing door lock is effectively solved and collides in latch bolt at closing time and buckle so as to cause latch bolt damage, latch performance is more stable, more reliable, service life is longer, and simple in structure, ingenious, and production and processing is easy, at low cost, the upgrading to existing door lock is also beneficial to, is conducive to produce in enormous quantities.

Description

A kind of door lock

Technical field

The utility model belongs to lock technology field, more particularly to a kind of door lock.

Background technology

At present, on the market all it is that it is made by the collision of direct buckle in its latch bolt at closing time after door lock is mounted on a door It bounces back in lock body, door is closed to realize.But the door lock skew bolt of this traditional structure be subject to when being collided with buckle one perpendicular to The active force of latch bolt pull rod, so as to which it be forced to bounce back into lock body, after long-time impact several times, usually occur latch bolt be damaged, Latch bolt is connected the problems such as loosening with pull rod, has some setbacks so as to cause latch bolt stretching, retraction, performance is unstable, unreliable, uses the longevity It orders short.

Utility model content

For solve the above-mentioned problems in the prior art, the utility model provide it is a kind of using gear drive structure come Realize the locking reconciliation lock control of Lock Lee, stability and reliability are greatly improved, also effectively prolonged the service life, and structure letter It is single, assemble and install very convenient, efficient lockset.

In order to solve the above technical problems, the utility model adopts the following technical solution：

A kind of door lock, latch bolt outer end are equipped with one piece or more the tongue piece that can be horizontally rotated, and the tongue piece is from the inclined-plane of latch bolt It stretches out, and in collide rotation, the driving of door closing procedure and buckle latch bolt is made to bounce back in lock body, while tongue piece rotated herein Journey is by tapering into latch bolt and bounced back to together in lock body with latch bolt.

Further, the outer end of the latch bolt is equipped with connection inclined-plane and plane is horizontally mounted slot；The tongue piece is outer end Sharp inner end is big and inner end is arc-shaped flat drops, and inner end is rotatably mounted at by lock shaft and is horizontally mounted in slot, and The hook portion being horizontally mounted towards stretching of the one side on inclined-plane equipped with protrusion outside slot；During assembling, the outer end of the latch bolt and tongue piece is stretched Go out outside the fixed baffle of lock body, the hook portion catches on the inside of fixed baffle.

Further, set in the latch bolt there are one slot and one piece of tongue piece is horizontally mounted, the tongue piece is rotatably mounted It is being horizontally mounted in slot, and is being located at the axle center of the pull rod of latch bolt in same level.

Further, set in the latch bolt there are two slot and two pieces of tongue pieces is horizontally mounted, two pieces of tongue pieces are one to one Two are installed in rotation on to be horizontally mounted in slot, and two pieces of tongue pieces with the axle center of the pull rod of latch bolt apart from equal.

The beneficial effects of the utility model are：

The utility model is through the above technical solutions, the impact force between buckle can effectively be buffered, and dexterously turn It changes the active force with the pull rod axis parallel of latch bolt into, latch bolt is made more swimmingly to bounce back into lock body, effectively solve existing door lock It collides in latch bolt at closing time and buckle and is damaged so as to cause latch bolt, latch performance is more stable, more reliable, and service life is more Long and simple in structure, ingenious, production and processing is easy, at low cost, is also beneficial to the upgrading to existing door lock, is conducive to Produce in enormous quantities.

Description of the drawings

Fig. 1 is a kind of structure diagram of door lock embodiment described in the utility model；

Fig. 2 is the structure diagram of latch bolt component in a kind of door lock embodiment described in the utility model；

Fig. 3 is the configuration schematic diagram of latch bolt component in a kind of door lock embodiment described in the utility model.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining this Utility model is not used to limit the utility model.

As shown in Figure 1 to Figure 3：

Door lock described in the utility model embodiment, 2 outer end of latch bolt are equipped with one piece or more the tongue piece 3 that can be horizontally rotated, The tongue piece 3 is stretched out from the inclined-plane of latch bolt 2 21, and bounces back to latch bolt 2 in collide rotation, the driving of door closing procedure and buckle In lock body 1, while tongue piece 3 bounces back in the gradual retraction latch bolt 2 of this rotation process and with latch bolt 2 in lock body 1 together.

Concrete structure can be：The outer end of the latch bolt 2 is equipped with connection inclined-plane 21 and one of plane 22 is horizontally mounted slot 23, one piece of tongue piece 3 is additionally provided in latch bolt 2, the tongue piece 3 is that outer end point inner end is big and inner end is arc-shaped flat drops, Its inner end is installed in rotation on by lock shaft 31 and is horizontally mounted in slot 23, and is located at same water with the axle center of the pull rod 4 of latch bolt 2 In plane, and it is equipped with the stretching of protrusion towards the one side on inclined-plane 21 and is horizontally mounted hook portion 32 outside slot 23；During assembling, the latch bolt 2 and tongue piece 3 outer end stretch out lock body 1 fixed baffle 11 outside, the hook portion 32 catches on the inside of fixed baffle 11.

Door lock described in the utility model is installed on door, in the process of shutdown, tongue piece 3 can first be sent out with the buckle on doorframe Raw collision, while the hook portion 32 of tongue piece 3 catches on fixed baffle 11, and tongue piece 3 is made to have the axis parallel of one and pull rod 4 in latch bolt 2 Active force, latch bolt 2 is driven to bounce back into lock body 1, tongue piece 3 rotates, in gradual retraction latch bolt 2 (being horizontally mounted slot 23) at this time, Until latch bolt 2 is avoided buckle, is buckled into keeper.

In this way, Spring lock described in the utility model can effectively buffer the impact force between buckle by tongue piece 3, and it is skilful The active force with 4 axis parallel of the pull rod of latch bolt 2 is converted into wonderfully, latch bolt 2 is made more swimmingly to bounce back into lock body 1, is effectively solved Certainly existing door lock collides in latch bolt at closing time and buckle and is damaged so as to cause latch bolt, and latch performance is more stable, more reliable, makes With longer life expectancy, and it is simple in structure, ingenious, and production and processing is easy, at low cost, is also beneficial to change the upgrading of existing door lock It makes, is conducive to produce in enormous quantities.

Certainly, it can also be set in the latch bolt 2 and slot 23 and two pieces of tongue pieces 3 are horizontally mounted there are two described in, described two Block tongue piece 3 is installed in rotation on two and is horizontally mounted in slot 23 one to one, and the axis of two pieces of tongue pieces 3 and the pull rod 4 of latch bolt 2 The heart is apart from equal.In this way, also can effectively buffer the impact force between buckle, and dexterously it is converted into and 4 axis of the pull rod of latch bolt 2 The parallel active force of the heart, makes latch bolt 2 more swimmingly bounce back into lock body 1, solves existing door lock and is sent out in latch bolt at closing time and buckle Raw collision damages so as to cause latch bolt, and performance is equally stablized, is reliable, and service life is longer.

The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these are improved and profit Decorations are also considered as the scope of protection of the utility model.

Claims (4)

1. a kind of door lock, it is characterised in that：Its latch bolt (2) outer end is equipped with one piece or more the tongue piece (3) that can be horizontally rotated, the tongue Piece (3) is stretched out from the inclined-plane of latch bolt (2) (21), and in collide rotation, the driving of door closing procedure and buckle latch bolt (2) is made to bounce back In to lock body (1), while tongue piece (3) bounces back to lock together in the gradual retraction latch bolt (2) of this rotation process and with latch bolt (2) In body (1).

2. door lock according to claim 1, it is characterised in that：The outer end of the latch bolt (2) is equipped with connection inclined-plane (21) peace Face (22) is horizontally mounted slot (23)；The tongue piece (3) is that outer end point inner end is big and inner end is arc-shaped flat drops, Inner end is rotatably mounted at by lock shaft (31) to be horizontally mounted in slot (23), and is equipped with stretching for protrusion towards the one side of inclined-plane (21) The hook portion (32) of water outlet safety tankage (23) outside；During assembling, consolidating for lock body (1) is stretched out in the outer end of the latch bolt (2) and tongue piece (3) Determine baffle (11) outside, the hook portion (32) catches on the inside of fixed baffle (11).

3. door lock according to claim 2, it is characterised in that：Set on the latch bolt (2) there are one be horizontally mounted slot (23) and One piece of tongue piece (3), the tongue piece (3), which is installed in rotation on, to be horizontally mounted in slot (23), and with the pull rod (4) of latch bolt (2) Axle center is located in same level.

4. door lock according to claim 1 or claim 2, it is characterised in that：Slot (23) is horizontally mounted there are two being set on the latch bolt (2) With two pieces of tongue pieces (3), two pieces of tongue pieces (3) are installed in rotation on two and are horizontally mounted in slot (23) one to one, and two Block tongue piece (3) is with the axle center of the pull rod (4) of latch bolt (2) apart from equal.