CN107956312B - Strong anti-theft lock tongue assembly and lock body using same - Google Patents
Strong anti-theft lock tongue assembly and lock body using same Download PDFInfo
- Publication number
- CN107956312B CN107956312B CN201711168837.7A CN201711168837A CN107956312B CN 107956312 B CN107956312 B CN 107956312B CN 201711168837 A CN201711168837 A CN 201711168837A CN 107956312 B CN107956312 B CN 107956312B
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- Prior art keywords
- lock tongue
- main body
- lock
- bolt
- positioning column
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/146—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other locks with two or more bolts, each bolt itself being a tumbler
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention relates to a powerful anti-theft lock tongue assembly and a lock body applied by the same, comprising a lock tongue main body and a lock tongue supporting plate connected with the lock tongue main body; the bolt supporting plate is T-shaped and comprises a bolt driving plate arranged along the axial direction and an upright connecting plate body arranged along the transverse direction and positioned at the outer side end part of the bolt driving plate, and the outer side of the upright connecting plate body is also provided with a protruding positioning column protruding along the axial direction, and the bolt driving plate, the protruding positioning column and the upright connecting plate body are cast into an integrated structure; the center of the lock tongue main body is provided with a positioning hole which is adaptive to the protruding positioning column, the lock tongue main body is inserted onto the protruding positioning column through the positioning hole, the axis of the lock tongue main body is arranged along the axial direction, the lock tongue main body is in welded connection with the vertical connecting plate body, so that a welding point is arranged, and a space is arranged between the welding point and the protruding positioning column in the transverse direction. Thus, the structure and the manufacturing process of the lock tongue assembly are simplified, and the radial bearing capacity and the axial bearing capacity are greatly improved.
Description
Technical Field
The invention relates to a lock tongue assembly, in particular to a strong anti-theft lock tongue assembly and a lock body applying the lock tongue assembly.
Background
The lock body mainly comprises a lock body, a lock tongue and a lock core, wherein the lock tongue is a main stressed part, and the lock body is required to be very firm in structure and capable of preventing picking and pulling. The most common bolt structure at present is to connect the bolt main body and the bolt supporting plate together by riveting or welding. Referring specifically to the schematic structural views of the locking bolt shown in fig. 1, 2, 3 and 4, the locking bolt main body 2 includes 3 locking posts 21a, and an axially extending rivet 211 is disposed on an inner end surface of each locking post 21 a. The bolt supporting plate 1 comprises a bolt driving plate 11 and a connecting plate body 12a, the bolt driving plate 11 and the connecting plate body 12a are respectively formed by stamping cold-rolled plates, a riveting through hole 121a and a connecting square hole 122 which respectively correspond to the riveting head 211 are also punched on the connecting plate body 12a, and a connecting protrusion 110 which corresponds to the connecting square hole 122 is arranged at the outer end of the bolt driving plate 11. The bolt driving plate 11, the connecting plate body 12a and the bolt column 21a are all mutually independent components, when in assembly, the rivet joint 211 of the bolt column 21a is inserted into the rivet through hole 121a of the connecting plate body 12a and is riveted with a flanging so as to fix the bolt column 21a on the connecting plate body 12a, then the connecting protrusion 110 of the bolt driving plate 11 is inserted into the connecting square hole 122 of the connecting plate body 12a, and then a plurality of welding points (a and b) are arranged at the joint of the bolt driving plate 11 and the connecting plate body 12a so as to weld the welding points (a and b) together, and the welding points (a and b) are respectively arranged on the left side and the right side of the bolt driving plate 11. The bolt of this structure is complex in manufacturing process and very high in cost, and the biggest weakness is that the capacity of the bolt 21a to bear radial load is insufficient, mainly represented by the connection structure between the bolt 21a and the bolt driving plate 11, the bolt 21a is indirectly connected to the bolt driving plate 11 through the welding between the connecting plate body 12a and the bolt driving plate 11, and the welding points (a, b) are respectively arranged at two sides of the bolt driving plate 11 and very close to the central axis of the bolt 21a, so that only the connection function can be achieved and the radial support cannot be well provided for the bolt 21 a. The tongue 21a is easily deformed and even falls off from the web body 12a when subjected to radial load.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a powerful anti-theft lock tongue assembly which comprises a lock tongue main body and a lock tongue supporting plate connected with the lock tongue main body; the novel lock tongue support plate is characterized in that the lock tongue support plate is T-shaped and comprises a lock tongue driving plate arranged along the axial direction and an upright connecting plate body arranged along the transverse direction and positioned at the outer side end part of the lock tongue driving plate, the outer side of the upright connecting plate body is also provided with a convex positioning column protruding along the axial direction, and the lock tongue driving plate, the convex positioning column and the upright connecting plate body are cast and formed into an integrated structure; the center of the lock tongue main body is provided with a positioning hole which is adapted to the protruding positioning column, the lock tongue main body is inserted onto the protruding positioning column through the positioning hole, the axis of the lock tongue main body is arranged along the axial direction, the lock tongue main body is in welded connection with the vertical connecting plate body, so that a welding point is arranged, and a space is arranged between the welding point and the protruding positioning column in the transverse direction.
The lock tongue main body can stretch and retract at the side opening part of the lock shell and can enter the lock hole of the opposite door frame, so that the door leaf and the door frame are locked together. And the bolt supporting plate is a power transmission piece for driving the bolt main body to stretch and move. The direction of the telescopic movement of the lock tongue main body is defined as an axial direction, and the direction perpendicular to the axial direction is defined as a transverse direction.
The vertical connecting plate body is arranged along the transverse direction, namely the extending direction of the bolt driving plate in the whole is the axial direction, and the extending direction of the vertical connecting plate body in the whole is the transverse direction, and the vertical connecting plate body are integrally arranged; in this definition, it is not equivalent to said upstanding web body being a virtual transverse face only, which is a three-dimensional structural product, and likewise said tongue actuation plate being a virtual axial face only, which is a three-dimensional structural product. In addition, the upright connecting plate body is arranged vertically and transversely and the bolt driving plate is arranged horizontally and axially, so that the upright connecting plate body becomes a connecting platform arranged on the outer side end part of the bolt driving plate. The outboard end is the end of the latch bolt assembly that is relatively close to one end of the side opening when the latch bolt assembly is installed on the lock body.
Wherein, protruding reference column is along the protruding setting of axial. In this way, the axial forces experienced by the protruding locating stud can be transferred to and counteracted by the tongue actuation plate. It is of course preferred that the axis of the protruding locating stud overlaps the body of the tongue actuation plate.
The lock tongue driving plate, the protruding positioning column and the vertical connecting plate body are cast into an integrated structure. In this way, in the casting process of the bolt supporting plate, the bolt driving plate, the protruding positioning column and the vertical connecting plate body are naturally connected into a whole, so that the process of independently manufacturing the bolt driving plate, the protruding positioning column and the vertical connecting plate body can be omitted, the connecting structure and the assembling process between the bolt driving plate and the vertical connecting plate body can be omitted, more importantly, the connecting strength between the bolt driving plate and the protruding positioning column is enhanced, the structural strength of the bolt supporting plate is greatly enhanced, and the axial and radial bearing capacity of the bolt supporting plate is improved.
The lock tongue main body is inserted into the protruding positioning column through the positioning hole. In this way, the locking bolt body can be initially positioned onto the locking bolt carrier by means of a plug connection with the protruding locating stud. In addition, the axis of the tongue body is arranged in the axial direction. In this way, the axial force born by the lock tongue main body can be transmitted to the lock tongue supporting plate and offset by the lock tongue supporting plate, so that the axial bearing capacity of the lock tongue main body is improved.
The bolt body is further positioned on the vertical connecting plate body through the welding point, the bolt body is integrally connected with the vertical connecting plate body through the welding point, radial load and axial load born by the bolt body can be better transferred to the vertical connecting plate body, and then transferred to other parts of the bolt supporting plate to be offset together. In addition, a space is arranged between the welding point and the protruding positioning column in the transverse direction. In this way, the welding point is not arranged on the axis of the protruding locating column but is arranged at or near the outer edge position of the protruding locating column. The welding point not only can be a connecting point between the lock tongue main body and the vertical connecting plate body, but also can be a radial supporting point for providing radial support for the lock tongue main body, so that the radial bearing capacity of the lock tongue main body is further improved.
According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: compared with the combined bolt supporting plate manufactured by welding or riveting and other processes in the prior art, the integrated bolt supporting plate manufactured by adopting the casting process not only simplifies the structure and the manufacturing process, but also has excellent structural strength, thereby greatly improving the radial bearing capacity and the axial bearing capacity. In addition, the lock tongue main body is stably positioned by means of the welding point, and radial bearing capacity and axial bearing capacity are further improved, so that anti-picking and anti-pulling capacities of the lock tongue assembly are further improved.
Further technical scheme can also be that the locating hole of spring bolt main part with clearance fit links up between the protruding reference column. Therefore, the protruding positioning column can be inserted into the positioning hole of the lock tongue main body relatively easily, the matching precision between the protruding positioning column and the lock tongue main body can be reduced, and the protruding positioning column can still easily or slightly forcefully extend into the positioning hole of the lock tongue main body when the protruding positioning column is slightly bent and deformed. When the bolt main body bears radial load and is subjected to bending deformation and is leaned on the convex positioning column, the convex positioning column can be relied on to cooperatively bear the radial load, so that the radial bearing capacity can be improved.
Further technical scheme may be that a notch is provided at a plate edge position of the vertical connecting plate body, a projection area of the notch in an axial direction at least partially falls onto an inner side end face of the lock tongue main body, and the welding point is arranged in the notch. The projection area of the notch part in the axial direction at least partially falls onto the inner side end surface of the lock tongue main body means that the projection area of the notch part in the axial direction can completely fall onto the inner side end surface of the lock tongue main body or can partially fall onto the inner side end surface of the lock tongue main body. Therefore, before welding, the inner side end face of the lock tongue main body can be exposed through the notch part, so that the contact area between the welding point and the inner side end face of the lock tongue main body can be increased, and welding operation can be performed in the inner side space of the lock tongue main body. In addition, after the welding point is collected to the inner side end face of the lock tongue main body, the influence on the appearance of the lock tongue main body can be reduced.
Further, the outside end of the tongue driving plate may be provided with at least one pair of tongue bodies, and the pair of tongue bodies may be arranged side by side at intervals.
The invention also provides a strong anti-theft lock tongue assembly of another scheme, which comprises a lock tongue main body and a lock tongue supporting plate connected with the lock tongue main body; the novel lock tongue support plate is characterized in that the lock tongue support plate is T-shaped and comprises a lock tongue driving plate arranged along the axial direction and an upright connecting plate body arranged along the transverse direction and positioned at the outer side end part of the lock tongue driving plate, the outer side of the upright connecting plate body is also provided with a convex positioning column protruding along the axial direction, and the lock tongue driving plate, the convex positioning column and the upright connecting plate body are cast and formed into an integrated structure; the center of the lock tongue main body is provided with a positioning hole which is matched with the protruding positioning column, the positioning hole axially penetrates through the lock tongue main body, the bottom of the positioning hole is provided with a narrowed inner flange, the lock tongue main body is inserted onto the protruding positioning column through the positioning hole, the axis of the lock tongue main body is arranged along the axial direction, and the protruding positioning column is riveted onto the narrowed inner flange.
According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: compared with the combined bolt supporting plate manufactured by welding or riveting and other processes in the prior art, the integrated bolt supporting plate manufactured by adopting the casting process not only simplifies the structure and the manufacturing process, but also has excellent structural strength, thereby improving the axial bearing capacity. In addition, adopt the riveting structure between spring bolt main part with protruding reference column, make protruding reference column with the spring bolt main part links together, like this, the spring bolt main part not only can rely on protruding reference column links firmly on the spring bolt layer board, but also can transmit the radial effort that bears to on the protruding reference column, and pass through protruding reference column transmits to other positions of spring bolt layer board are offset jointly, thereby have strengthened the ability that the spring bolt main part bore radial load, and then improve the pick-proof, the anti-pulling ability of spring bolt subassembly.
Further technical scheme can also be that the plug body is further included, and the plug body is plugged at the top of the positioning hole. Thus, the locating hole can be covered by the plug body, and the appearance of the lock tongue main body is improved.
The invention also provides a lock body applying the lock tongue assembly, which comprises a lock shell with a side opening part and the lock tongue assembly arranged in the lock shell, wherein the lock tongue main body of the lock tongue assembly stretches and moves on the side opening part.
Further technical scheme may be that be provided with the guide way of axial extension on the spring bolt drive plate be provided with in the lock casing and stretch into the guide post in the guide way be provided with the pad cover between the spring bolt drive plate with the shell top plate of lock casing be provided with down the pad cover between the spring bolt drive plate with the shell bottom plate of lock casing, go up the pad cover with down the pad cover wears to overlap respectively on the guide post. Thus, when the bolt supporting plate bears radial load, the radial load can be transferred to the upper cushion sleeve or the lower cushion sleeve to be counteracted, and the bolt driving plate is positioned to reduce radial deflection of the bolt driving plate.
Because of the characteristics and advantages of the invention, the invention can be applied to a strong anti-theft lock tongue assembly and a lock body applied by the same.
Drawings
FIG. 1 is an exploded view of a prior art conventional latch bolt assembly;
FIG. 2 is a schematic cross-sectional view of a conventional structure for connecting a main body of a locking bolt to a connecting plate;
FIG. 3 is a schematic front view of a conventional latch bolt assembly;
FIG. 4 is a left side schematic view of the latch bolt assembly of FIG. 3;
FIG. 5 is a schematic perspective view of a latch bolt assembly embodying aspects of the present invention;
FIG. 6 is a schematic diagram of the front view of the latch bolt assembly of the present invention, with the latch bolt drive plate omitted for clarity of illustration of the latch bolt body and latch bolt carrier;
FIG. 7 is a schematic view of the cross-sectional structure in the direction A-A in FIG. 6;
fig. 8 is a schematic perspective view of a tongue supporting plate.
Fig. 9 is a schematic structural view of a latch bolt assembly according to another embodiment of the present invention, and further shows a cross-sectional structure of the latch bolt body and the protruding positioning column for clarity of the connection structure of the latch bolt body and the protruding positioning column.
Description of the embodiments
The structure of the latch bolt assembly applying the technical scheme of the invention is further described below with reference to the accompanying drawings.
As shown in fig. 5 to 8, the present invention proposes a strong anti-theft latch assembly 100, which includes three latch bodies (2, 2a and 2 b) arranged side by side at intervals (three latch bodies have the same structure, hereinafter collectively referred to as latch body 2) and a latch blade 1 connecting the latch bodies 2. The lock tongue main body 2 is a locking member which can be moved in a telescopic manner in a side opening portion of a lock case and can be inserted into a lock hole of a door frame facing the door frame, thereby locking a door leaf and the door frame together. In other embodiments, it is also possible to provide 1, 2 or even more of said bolt bodies 2. The bolt supporting plate 1 is a power transmission piece for driving the bolt main body 2 to stretch and retract. The bolt supporting plate 1 is T-shaped and comprises a bolt driving plate 11 arranged along the axial direction and an upright connecting plate body 12 arranged along the transverse direction and positioned at the outer side end part of the bolt driving plate 11. In this way, the standing connection plate body 12 stands in a lateral arrangement while the tongue driving plate 11 is arranged horizontally and axially, and the standing connection plate body 12 becomes a connection platform provided on an outer end portion of the tongue driving plate 11. Three protruding positioning posts (13, 13a, 13 b) protruding in the axial direction and arranged side by side at intervals are provided on the outer side of the standing connection plate body 12 (the three protruding positioning posts have the same structure and are collectively referred to as protruding positioning posts 13 hereinafter). In this way, the axial forces experienced by the protruding locating stud 13 can be transmitted to the bolt drive plate 11 and counteracted by means of the bolt drive plate 11. The lock tongue driving plate 11, the protruding positioning column 13 and the vertical connecting plate body 12 are cast and formed into an integrated structure. In this way, in the casting process of the bolt supporting plate 1, the bolt driving plate 11, the protruding locating column 13 and the vertical connecting plate body 12 are naturally connected integrally, so that not only the process of independently manufacturing them respectively, but also the connection structure and the assembly process between them can be omitted, and more importantly, the connection strength between them is enhanced, thereby greatly enhancing the structural strength of the bolt supporting plate 1, thereby being beneficial to improving the axial and radial bearing capacity of the bolt supporting plate 1.
A positioning hole 20 which is matched with the protruding positioning column 13 is arranged in the center of the lock tongue main body 2, and the lock tongue main body 2 is inserted onto the protruding positioning column 13 through the positioning hole 20. In this way, the bolt body 2 can be initially positioned on the bolt carrier 1 by means of a plug connection with the protruding locating stud 13. In addition, the axis of the tongue body 2 is arranged in the axial direction. In this way, the axial force born by the bolt body 2 can be transferred to the bolt supporting plate 1 and offset by the bolt supporting plate 1, so that the axial bearing capacity of the bolt body 2 is improved. In order to enable the bolt main body 2 to be easily inserted into the protruding positioning column 13, the inner diameter of the positioning hole 20 is slightly larger than the outer diameter of the protruding positioning column 13, the positioning hole of the bolt main body 2 is in clearance fit engagement with the protruding positioning column 13, so that the fit precision between the positioning hole and the protruding positioning column is reduced, and the bolt main body 2 can still be easily or slightly forcefully inserted into the positioning hole 20 of the bolt main body 2 when the protruding positioning column 13 is slightly bent and deformed. When the bolt main body 2 bears radial load and is subjected to bending deformation to be leaned on the convex positioning column 13, the convex positioning column 13 can be relied on to cooperatively bear radial load to improve radial bearing capacity.
As shown in fig. 5 and 8, notch parts (120, 121) are provided at the plate edge positions of the upright connecting plate body 12, the projection areas of the notch parts (120, 121) in the axial direction at least partially fall onto the inner end surface 21 of the lock tongue main body 2, and welding points (a, b) (6 welding points are shown in the figure, and a, b denote welding points separated on two sides of the protruding positioning column 13) are arranged in the notch parts (120, 121). The welding points (a, b) are used for welding the lock tongue main body 2 and the vertical connecting plate body 12. The welding points (a, b) and the protruding positioning column 13 are spaced apart from each other in the transverse direction. In this way, before the welding process, the inner end surface 21 of the latch main body 2 may be exposed through the notch parts (120, 121), so that the contact area between the welding points (a, b) and the inner end surface 21 of the latch main body 2 may be increased, and the welding operation may be performed from the inner side of the latch main body 2, thereby having a more abundant operation space. The welding points (a, b) are stored on the inner end surface 21 of the lock tongue main body 2, so that the influence on the appearance of the lock tongue main body 2 can be reduced. The bolt main body 2 is further positioned on the vertical connecting plate body 12 through the welding connection of the welding points (a and b), and the welding points (a and b) enable the bolt main body 2 to be connected with the vertical connecting plate body 12 into a whole, so that radial load and axial load born by the bolt main body 2 can be better transferred to the vertical connecting plate body 12, and then transferred to other parts of the bolt supporting plate 1 to be offset together. In addition, since the welding points (a, b) have a distance from the protruding positioning posts 13 in the lateral direction, the welding points (a, b) can not only serve as connection points between the bolt body 2 and the standing connection plate body 12, but also serve as radial support points for the bolt body 2, thereby further improving the radial support strength of the bolt body 2. The welding points (a, b) may be disposed at other positions than inside and outside the notch portions (120, 121) as long as the bolt body 2 and the standing connection plate body 12 can be connected together with a space therebetween in the lateral direction with respect to the protruding positioning column 13.
Further, a pair of guide bosses (111, 112) are provided on the upper side wall of the tongue driving plate 11, and the guide bosses (111, 112) and the tongue driving plate 11 are cast and formed into an integrated structure. The novel movable inclined tongue driving device is characterized by further comprising an inclined tongue driving plate 3 for driving the inclined tongue to move, wherein the inclined tongue driving plate 3 is sleeved on a pair of guide convex columns (111 and 112) in a sliding mode, and check rings (113 and 114) for preventing the inclined tongue driving plate 3 from falling off are fixedly connected to the guide convex columns (111 and 112).
As shown in fig. 9, the present invention also proposes another strong anti-theft bolt assembly 100', which is basically identical to the structure of the strong anti-theft bolt assembly 100 discussed above, and the main difference is the connection structure between the bolt body 2' and the bolt carrier 1 '. In this embodiment, the bolt body 2 'and the bolt carrier 1' are not welded, but are riveted. Specifically, a positioning hole 20' adapted to the protruding positioning post 13' is provided at the center of the bolt body 2', the positioning hole 20' penetrates the bolt body 2' axially, a narrowed inner flange 201' is provided at the bottom of the positioning hole 20', the bolt body 2' is inserted onto the protruding positioning post 13' through the positioning hole 20' and the axis of the bolt body 2' is arranged along the axial direction, and the protruding positioning post 13' is riveted onto the narrowed inner flange 201 '. Therefore, the bolt main body 2 'and the protruding positioning column 13' are connected together by adopting a riveting structure, so that the protruding positioning column 13 'and the bolt main body 2' can be fixedly connected to the bolt supporting plate 1 'by virtue of the protruding positioning column 13', and the borne radial acting force can be transferred to the protruding positioning column 13 'and is transmitted to other parts of the bolt supporting plate 1' by virtue of the protruding positioning column 13 'to be jointly offset, thereby strengthening the capability of bearing radial load of the bolt main body 2', and further improving the anti-prying and anti-pulling capabilities of the bolt assembly. Further, a plug body 4' is further included, and the plug body 4' is plugged at the top of the positioning hole 20 '. In this way, the positioning hole 20' can be covered by the plug body 4', improving the appearance of the latch main body 2 '.
The invention also proposes a lock body applying the lock tongue assembly (100 or 100') comprising a lock housing having a side opening and the lock tongue assembly disposed within the lock housing, the lock tongue body of the lock tongue assembly being telescopically movable over the side opening. The lock comprises a lock body, a lock bolt driving plate, a lock bottom plate, a guide groove, a guide post, an upper cushion sleeve and a lower cushion sleeve, wherein the guide groove is axially extended on the lock bottom plate, the guide post is arranged in the lock body and extends into the guide groove, the lock bottom plate is provided with a lower cushion sleeve between the lock bottom plate and the lock bottom plate, and the upper cushion sleeve and the lower cushion sleeve are respectively sleeved on the guide post. Thus, when the bolt supporting plate bears radial load, the radial load can be transferred to the upper cushion sleeve or the lower cushion sleeve to be counteracted, and the bolt driving plate is positioned to reduce radial deflection of the bolt driving plate.
Claims (8)
1. The strong anti-theft lock tongue assembly comprises a lock tongue main body and a lock tongue supporting plate connected with the lock tongue main body; the novel lock tongue support plate is characterized in that the lock tongue support plate is T-shaped and comprises a lock tongue driving plate arranged along the axial direction and an upright connecting plate body arranged along the transverse direction and positioned at the outer side end part of the lock tongue driving plate, the outer side of the upright connecting plate body is also provided with a convex positioning column protruding along the axial direction, and the lock tongue driving plate, the convex positioning column and the upright connecting plate body are cast and formed into an integrated structure; the center of the lock tongue main body is provided with a positioning hole which is adapted to the protruding positioning column, the lock tongue main body is inserted onto the protruding positioning column through the positioning hole, the axis of the lock tongue main body is arranged along the axial direction, the lock tongue main body is in welded connection with the vertical connecting plate body, so that a welding point is arranged, and a space is arranged between the welding point and the protruding positioning column in the transverse direction.
2. The deadbolt assembly of claim 1, wherein the locating hole of the deadbolt body is in clearance fit engagement with the protruding locating post.
3. A latch bolt assembly according to claim 1, wherein a notch is provided in the upstanding web at a panel edge location, the projection of the notch in the axial direction at least partially falling onto the inside face of the latch bolt body, the weld being disposed within the notch.
4. A latch bolt assembly according to claim 1, 2 or 3 wherein at least one pair of said latch bolt bodies is provided at an outboard end of said latch bolt drive plate, said pair of latch bolt bodies being spaced side by side.
5. The strong anti-theft lock tongue assembly comprises a lock tongue main body and a lock tongue supporting plate connected with the lock tongue main body; the novel lock tongue support plate is characterized in that the lock tongue support plate is T-shaped and comprises a lock tongue driving plate arranged along the axial direction and an upright connecting plate body arranged along the transverse direction and positioned at the outer side end part of the lock tongue driving plate, the outer side of the upright connecting plate body is also provided with a convex positioning column protruding along the axial direction, and the lock tongue driving plate, the convex positioning column and the upright connecting plate body are cast and formed into an integrated structure; the center of the lock tongue main body is provided with a positioning hole which is matched with the protruding positioning column, the positioning hole axially penetrates through the lock tongue main body, the bottom of the positioning hole is provided with a narrowed inner flange, the lock tongue main body is inserted onto the protruding positioning column through the positioning hole, the axis of the lock tongue main body is arranged along the axial direction, and the protruding positioning column is riveted onto the narrowed inner flange.
6. The deadbolt assembly of claim 5, further comprising a plug body that plugs at the top of said locating hole.
7. A lock body employing the latch bolt assembly of any one of claims 1 to 6, comprising a lock housing having a side opening portion and said latch bolt assembly disposed within said lock housing, said latch bolt body of said latch bolt assembly being telescopically movable over said side opening portion.
8. The lock according to claim 7, wherein an axially extending guide groove is provided on the lock tongue driving plate, a guide post extending into the guide groove is provided in the lock housing, an upper pad sleeve is provided between the lock tongue driving plate and a housing top plate of the lock housing, a lower pad sleeve is provided between the lock tongue driving plate and a housing bottom plate of the lock housing, and the upper pad sleeve and the lower pad sleeve are respectively sleeved on the guide post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711168837.7A CN107956312B (en) | 2017-11-21 | 2017-11-21 | Strong anti-theft lock tongue assembly and lock body using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711168837.7A CN107956312B (en) | 2017-11-21 | 2017-11-21 | Strong anti-theft lock tongue assembly and lock body using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107956312A CN107956312A (en) | 2018-04-24 |
| CN107956312B true CN107956312B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711168837.7A Active CN107956312B (en) | 2017-11-21 | 2017-11-21 | Strong anti-theft lock tongue assembly and lock body using same |
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| Country | Link |
|---|---|
| CN (1) | CN107956312B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284871A (en) * | 2006-04-12 | 2007-11-01 | Miwa Lock Co Ltd | Structure of dead bolt |
| WO2009008015A1 (en) * | 2007-07-12 | 2009-01-15 | Cisa S.P.A. | Lock for reinforced doors and the like |
| CN202544558U (en) * | 2012-03-20 | 2012-11-21 | 贾君鑫 | Lock body provided with spring bolt capable of rotating freely |
| CN203626405U (en) * | 2013-11-14 | 2014-06-04 | 管康法 | Lock bolt assembly provided with rotating lock bolts |
| CN206530158U (en) * | 2016-12-12 | 2017-09-29 | 庞飞 | A kind of cylinder dead bolt |
| CN207526245U (en) * | 2017-11-21 | 2018-06-22 | 曹汉添 | Strong theft-proof lock tongue component and its lock body of application |
-
2017
- 2017-11-21 CN CN201711168837.7A patent/CN107956312B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284871A (en) * | 2006-04-12 | 2007-11-01 | Miwa Lock Co Ltd | Structure of dead bolt |
| WO2009008015A1 (en) * | 2007-07-12 | 2009-01-15 | Cisa S.P.A. | Lock for reinforced doors and the like |
| CN202544558U (en) * | 2012-03-20 | 2012-11-21 | 贾君鑫 | Lock body provided with spring bolt capable of rotating freely |
| CN203626405U (en) * | 2013-11-14 | 2014-06-04 | 管康法 | Lock bolt assembly provided with rotating lock bolts |
| CN206530158U (en) * | 2016-12-12 | 2017-09-29 | 庞飞 | A kind of cylinder dead bolt |
| CN207526245U (en) * | 2017-11-21 | 2018-06-22 | 曹汉添 | Strong theft-proof lock tongue component and its lock body of application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107956312A (en) | 2018-04-24 |
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Effective date of registration: 20230718 Address after: 528231 Guangdong Yajie Hardware Co., Ltd., Changgang North Road, Changshan changhongling Industrial Park, Nanhai District, Foshan City, Guangdong Province Applicant after: Guangdong Archie Hardware Co.,Ltd. Address before: 528200 Guangdong Foshan Shishan Nanling Changhong Shishan Industrial Park, Long Gang North Road Guangdong Ya Jie Hardware Co., Ltd. Applicant before: Cao Hantian |
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