CN210087003U

CN210087003U - Plunger latch assembly

Info

Publication number: CN210087003U
Application number: CN201920247618.6U
Authority: CN
Inventors: 谢向君; 刘娟
Original assignee: Jiangsu Hongji Metalwork Co Ltd
Current assignee: Jiangsu Hongji Metalwork Co Ltd
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2020-02-18
Anticipated expiration: 2029-02-27

Abstract

The utility model discloses a plunger latch subassembly, its lock body and locked groove including relative setting, the lock body in be equipped with spring bolt, position sleeve, plane spiral spring, connecting rod, fixed block, slide bar and locking mechanism, operating personnel when in-service use, only need close the door after, make the lock body just right with the locked groove, then stimulate the slide bar, make the slide bar pull the limit of spring bolt roll-off, can with locking groove and the locking mechanism butt joint locking on the connecting rod, plane spiral spring also can consequently the crimple, and when needing to open the door, only need remove the butt joint with locking groove with locking mechanism, like the handle that is located the lock body of pulling locking mechanism, make it pull the pull rod and drive the locking piece and break away from the locked groove, plane spiral spring diastole this moment, make the connection rope pulling connecting rod drive the automatic withdrawal of spring bolt, make lock body and locked groove remove the lock and attach, this scheme is simple structure not only, Convenient operation, low cost and reliable use.

Description

Plunger latch assembly

Technical Field

The utility model belongs to the technical field of the hasp and specifically relates to a hasp subassembly.

Background

The existing lock latch is mostly in a structural form capable of automatically popping out the lock tongue, the structure of the automatic retraction lock tongue is rare, in actual use, the lock latch structure capable of automatically popping out frequently causes noise due to the fact that the lock latch or a door frame is impacted when the door is closed, manual back locking is usually needed to enter in public places such as toilets and independent nursing rooms, the automatic lock tongue retracts when the door is out, and people outside can be guaranteed to know whether people are in the public places and the door can be locked more conveniently.

SUMMERY OF THE UTILITY MODEL

To the situation of the prior art, the utility model aims to provide a simple structure, convenient operation and spring bolt can automatic withdrawal's hasp subassembly

In order to realize the technical purpose, the utility model discloses a technical scheme does:

a lock latch assembly comprises a lock body and a lock groove which are oppositely arranged, wherein a lock tongue, a positioning sleeve, a planar spiral spring, a connecting rod, a fixed block, a sliding rod and a locking mechanism are arranged in the lock body, an opening for the lock tongue to penetrate out is formed in one side, opposite to the lock groove, of the lock body, the positioning sleeve is arranged in the lock body and is positioned on one side of the opening, the lock tongue is arranged between the opening and the positioning sleeve, one end of the connecting rod penetrates through the positioning sleeve and is fixedly connected with the lock tongue, the fixed block is arranged on one side, far away from the lock tongue, in the lock body, one end of the planar spiral spring is connected with the fixed block, the other end of the planar spiral spring is fixedly connected with the other end of the connecting rod through a connecting rope, the expansion or contraction of the lock tongue is driven by the expansion or contraction of the planar spiral spring, the locking mechanism is arranged on one side of, the one end and the connecting rod fixed connection of slide bar, the other end of slide bar is worn out the lock body and is located the lock body outside, the position that the lock body corresponds the slide bar and wears out is equipped with the sliding tray along spring bolt slip direction, when setting up the side along the sliding tray and pulling the slide bar and make the spring bolt insert the locked tray, locking mechanism and the fixed in locking groove butt joint restraint on the connecting rod, the flat spiral spring crimps this moment, when locking mechanism removes and docks with the locking tray, the expansion of flat spiral spring and pulling connection rope draw the connecting rod to drive the spring bolt withdrawal, make the slide bar reset.

Furthermore, a guide pulley is arranged between the connecting rod and the flat spiral spring, and after one end of the connecting rope is connected with the flat spiral spring, the other end of the connecting rope bypasses the guide pulley and is connected with the connecting rod.

Further, locking mechanism include locking piece, pull rod, spring, handle and snap ring, the one end of pull rod is worn in the lock body and is connected with the locking piece, the spring housing is located the pull rod and is located the pole portion in the lock body, the snap ring joint be located the outer other end of lock body in the pull rod, and this end is connected with the handle, when the spring was in natural state, locking piece butt was equipped with on the side in locking groove at the connecting rod.

Preferably, one side of the locking block, which is far away from the lock tongue, is of an inclined plane structure, and the locking groove is an imitated groove which is matched with the inclined plane structure.

Furthermore, the periphery side of the flat spiral spring is also provided with an annular sleeve, and the annular sleeve is correspondingly provided with a hole groove for the connection rope or the end part of the flat spiral spring to penetrate out.

By adopting the technical scheme, when an operator is actually used, the operator only needs to close the door, the lock body is just right opposite to the lock groove, then the sliding rod is pulled, the sliding rod is pulled to the limit of the sliding out of the lock tongue, the lock groove on the connecting rod and the locking mechanism can be butted and locked, the planar spiral spring can be curled, when the door needs to be opened, the lock mechanism and the lock groove only need to be undone and butted, if the handle of the lock mechanism, which is positioned outside the lock body, is pulled, the pulling rod drives the lock block to be disengaged from the lock groove, the planar spiral spring expands, the connecting rope pulls the connecting rod to drive the lock tongue to automatically retract, and the lock body and the lock groove are unlocked.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic sectional view of one of the implementation states of the present invention, in which the latch bolt is in an extended state;

fig. 2 is a schematic view of the external structure of the lock body and the lock groove corresponding to the embodiment shown in fig. 1;

fig. 3 is a schematic sectional view of the second embodiment of the present invention, in which the latch is in a retracted state;

figure 4 is a schematic view of the external structure of the lock body and the lock slot corresponding to the embodiment shown in figure 3;

fig. 5 is a schematic view of an external view structure of the present invention.

Illustration of the drawings:

1. a lock body; 2. locking the groove; 3. a latch bolt; 31. a connecting rod; 311. a locking groove; 32. a positioning sleeve; 33. a slide bar; 34. a sliding handle; 35. a sliding groove; 4. a flat spiral spring; 41. a fixed block; 42. an annular sleeve; 421. a hole groove; 5. a locking block; 51. a pull rod; 52. a spring; 53. a handle; 54. a snap ring; 6. a guide pulley; 7. and connecting ropes.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

As shown in one of fig. 1 to 5, the present invention includes a lock body 1 and a lock groove 2, which are oppositely disposed, a lock tongue 3, a positioning sleeve 32, a flat spiral spring 4, a connecting rod 31, a fixing block 41, a sliding rod 33 and a locking mechanism are disposed in the lock body 1, an opening for the lock tongue 3 to pass through is disposed on one side of the lock body 1 opposite to the lock groove 2, the positioning sleeve 32 is fixedly disposed in the lock body 1 and located on one side of the opening, the lock tongue 3 is disposed between the opening and the positioning sleeve 32, one end of the connecting rod 31 passes through the positioning sleeve 32 and is fixedly connected to the lock tongue 3, the fixing block 41 is disposed on one side of the lock body 1 away from the lock tongue 3, one end of the flat spiral spring 4 is connected to the fixing block 41, and the other end thereof is fixedly connected to the other end of the connecting rod 31 through a connecting rope 7, and the expansion or contraction of the, the locking mechanism is arranged on one side of the connecting rod 31, a locking groove 311 matched with the locking mechanism is arranged on the connecting rod 31, the locking groove 311 is used for butt-joint matching with the locking mechanism, one end of the sliding rod 33 is fixedly connected with the connecting rod 31, the other end of the sliding rod 33 penetrates through the lock body 1 and is positioned outside the lock body 1, a sliding groove 35 is arranged at the position of the lock body 1 corresponding to the penetrating part of the sliding rod 33 along the sliding direction of the bolt 3, when the sliding rod 33 is pulled along the side of the lock groove 2 to insert the lock tongue 3 into the lock groove 2, the locking mechanism is in butt joint with the locking groove 311 on the connecting rod 31 to be restrained and fixed, at the moment, the flat spiral spring 4 is curled, when the locking mechanism is released from the butt joint with the locking groove 311, the flat spiral spring 4 expands and pulls the connecting rope 7 to pull the connecting rod 31 to drive the locking tongue 3 to retract, so that the sliding rod 33 is reset, and preferably, a sliding handle 34 can be arranged at the end of the sliding rod 33, which is positioned outside the lock body 1.

Further, a guide pulley 6 is further arranged between the connecting rod 31 and the flat spiral spring 4, and after one end of the connecting rope 6 is connected with the flat spiral spring 4, the other end of the connecting rope bypasses the guide pulley 6 and is then connected with the connecting rod 31.

The locking mechanism comprises a locking block 5, a pull rod 51, a spring 52, a handle 53 and a snap ring 54, wherein one end of the pull rod 51 penetrates into the lock body 1 and is connected with the locking block 5, the spring 52 is sleeved on the rod part of the pull rod 51 positioned in the lock body 1, the snap ring 54 is clamped at the other end of the pull rod 51 positioned outside the lock body 1, the tail end of the end; preferably, one side of the locking block 5, which is far away from the locking tongue 3, is of an inclined surface structure, and the locking groove 311 is an arc-shaped groove adapted to the inclined surface structure.

Furthermore, an annular sleeve 42 is further disposed on the outer periphery of the flat spiral spring 4, and the annular sleeve 42 is correspondingly provided with a hole 421 for the connection rope 7 or the end of the flat spiral spring to pass through.

The utility model discloses an foretell technical scheme, operating personnel is when the in-service use, only need close the back with the door, it is just right to make lock body 1 and locked groove 2, then pulling slide bar 33, make slide bar 33 pull the limit of 3 roll-offs of spring bolt, can with locking groove 311 and the locking mechanism butt joint locking on the connecting rod 31, and plane spiral spring 4 also can consequently the crimple, and when needing to open the door, only need to relieve the butt joint with locking mechanism and locking groove 311, handle 53 outside being located lock body 1 like pulling locking mechanism, make it pull rod 51 drive locking piece 5 break away from locking groove 311, plane spiral spring 4 diastole this moment, make connecting rope 7 pulling connecting rod 31 drive the automatic withdrawal of spring bolt 3, make lock body 1 and locked groove 2 relieve the lock and attach, this scheme is simple structure not only, the operation is convenient, and with low costs, use reliably.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A latch assembly, characterized by: the lock comprises a lock body (1) and a lock groove (2) which are oppositely arranged, wherein a lock tongue (3), a positioning sleeve (32), a planar spiral spring (4), a connecting rod (31), a fixed block (41), a sliding rod (33) and a locking mechanism are arranged in the lock body (1), an opening through which the lock tongue (3) penetrates is arranged on one side of the lock body (1) opposite to the lock groove (2), the positioning sleeve (32) is arranged in the lock body (1) and positioned on one side of the opening, the lock tongue (3) is arranged between the opening and the positioning sleeve (32), one end of the connecting rod (31) penetrates through the positioning sleeve (32) and is fixedly connected with the lock tongue (3), the fixed block (41) is arranged on one side of the lock body (1) far away from the lock tongue (3), one end of the planar spiral spring (4) is connected with the fixed block (41), and the other end of the planar spiral spring is fixedly connected with the other end of the connecting rod (31) through, the extension and contraction of the lock tongue (3) are driven by the expansion or contraction of the flat spiral spring (4), the locking mechanism is arranged on one side of the connecting rod (31), the connecting rod (31) is provided with a locking groove (311) matched with the locking mechanism, the locking groove (311) is used for being in butt joint and matching with the locking mechanism, one end of the sliding rod (33) is fixedly connected with the connecting rod (31), the other end of the sliding rod (33) penetrates out of the lock body (1) and is positioned on the outer side of the lock body (1), the part, corresponding to the part, where the sliding rod (33) penetrates out, of the lock body (1) is provided with a sliding groove (35) along the sliding direction of the lock tongue (3), when the sliding rod (33) is pulled along the locking groove (2) to enable the lock tongue (3) to be inserted into the locking groove (2), the locking mechanism is in butt joint and constraint with the locking groove (311) on the connecting rod (31), at the moment, the flat spiral spring, the plane spiral spring (4) expands and pulls the connecting rope (7) to pull the connecting rod (31) to drive the bolt (3) to retract, so that the sliding rod (33) resets.

2. The latch assembly of claim 1, wherein: a guide pulley (6) is further arranged between the connecting rod (31) and the flat spiral spring (4), one end of the connecting rope (7) is connected with the flat spiral spring (4), and the other end of the connecting rope bypasses the guide pulley (6) and is then connected with the connecting rod (31).

3. The latch assembly of claim 1, wherein: locking mechanism include locking piece (5), pull rod (51), spring (52), handle (53) and snap ring (54), the one end of pull rod (51) penetrates in lock body (1) and is connected with locking piece (5), the spring housing is located pull rod (51) and is located the pole portion of lock body (1), snap ring (54) joint be located the outer other end of lock body (1) in pull rod (51), and this end is connected with handle (53), when the spring is in natural state, locking piece (5) butt is equipped with on the side of locking groove (311) in connecting rod (31).

4. A latch assembly according to claim 3, wherein: one side of the locking block (5) far away from the lock tongue (3) is of an inclined plane structure, and the locking groove (311) is an imitated groove matched with the inclined plane structure.

5. The latch assembly of claim 1, wherein: an annular sleeve (42) is further arranged on the outer peripheral side of the flat spiral spring (4), and a hole groove (421) for the connecting rope (7) or the end of the flat spiral spring (4) to penetrate through is correspondingly formed in the annular sleeve (42).