CN221096150U - Pin lock - Google Patents

Abstract

The utility model provides a latch lock, which comprises a buckle plate, a connecting rod assembly and a latch head assembly, wherein the buckle plate is provided with a first through hole; the connecting rod component is movably arranged at one side of the buckle plate; the bolt head assembly is movably arranged at the end part of the connecting rod assembly, the bolt head assembly comprises a bolt housing, a bolt tongue and a first elastic piece, the bolt tongue movably penetrates through the bolt housing and abuts against the bolt housing, a fixing hole is formed in the side wall of the bolt housing, and the first elastic piece abuts between the connecting rod assembly and the bolt tongue to drive the bolt tongue to push the bolt housing to move, so that the fixing hole is correspondingly communicated with the first through hole. According to the latch lock provided by the utility model, the first elastic piece is abutted between the connecting rod assembly and the latch tongue, so that the first elastic piece can push the latch shell to move, the fixing hole is correspondingly communicated with the first through hole, the latch head assembly is conveniently locked on the buckle plate in a subsequent manner, a foundation is provided for the correct assembly of the latch head assembly, and the assembly efficiency of the latch lock is improved.

Description

Pin lock

Technical Field

The utility model relates to the technical field of locks, in particular to a bolt lock.

Background

The split door is also called a double door, and refers to a door with two door leaves, in actual use, one door is usually in a closed state, and can be opened only when large furniture or household appliances need to be carried in some specific cases, for example, the split door is called a secondary door or a fixed door, and the other door is normally opened or closed, and is called a main door. The extension or retraction of the latch head is controlled by a central control latch to control the opening or closing of the fixed door.

In the assembly process of the traditional central control bolt, the position of the bolt head needs to be adjusted back and forth, so that the bolt head can be correctly assembled on the buckle plate, and the assembly efficiency of the central control bolt is low.

Disclosure of utility model

An object of an embodiment of the present utility model is to provide a latch lock to solve the above-mentioned problems. The embodiment of the utility model realizes the aim through the following technical scheme.

The utility model provides a latch lock comprising:

the buckle plate is provided with a first through hole;

The connecting rod assembly is movably arranged on one side of the pinch plate; and

The bolt head assembly is movably arranged at the end part of the connecting rod assembly, the bolt head assembly comprises a bolt housing, a bolt tongue and a first elastic piece, the bolt tongue movably penetrates through the bolt housing and abuts against the bolt housing, a fixing hole is formed in the side wall of the bolt housing, and the first elastic piece abuts against between the connecting rod assembly and the bolt tongue to drive the bolt tongue to push the bolt housing to move, so that the fixing hole is correspondingly communicated with the first through hole.

In one embodiment, the latch tongue includes a tongue body and a connecting rod, where the tongue body is disposed through the latch housing and abuts against an inner wall of the latch housing, the connecting rod is disposed through the connecting rod assembly, and the first elastic element is wound around the connecting rod.

In one embodiment, the latch tongue further comprises a limiting part, the limiting part is connected to one side, away from the tongue body, of the connecting rod, the cross section area of the limiting part is larger than that of the connecting rod, a stop part is arranged on the inner wall of the connecting rod assembly, and the limiting part abuts against the stop part.

In one embodiment, the latch head assembly further includes a second elastic member disposed in the latch housing and abutting between an inner wall of the latch housing and the latch tongue to provide a force with which the latch tongue protrudes out of the latch housing.

In one embodiment, the connecting rod assembly is arranged on the bolt housing in a penetrating manner, the first elastic piece is abutted between the end part of the connecting rod assembly and the bolt tongue, and the second elastic piece is sleeved on the peripheries of the connecting rod assembly and the first elastic piece.

In one embodiment, the clip is adapted to be secured to a door frame profile and conceal a side channel defined in the door frame profile to mount the latch head assembly and the link assembly within the door frame profile.

In one embodiment, the latch lock further comprises a support member and a fastener, the support member is disposed between the latch housing and the buckle plate, the support member abuts against the latch housing, the support member is provided with a second through hole, and the fastener penetrates through the first through hole and the second through hole and is matched with the fixing hole.

In one embodiment, the support member includes a support plate, an abutment portion and a sliding portion, the abutment portion and the sliding portion being disposed on the same side of the support plate, the abutment portion being in abutment with the latch housing, the sliding portion extending outwardly from the support plate, the sliding portion being capable of sliding engagement with the door frame profile.

In one embodiment, the outer surface of the latch housing is provided with a boss, the fixing hole is provided in the boss, and the boss abuts against the support plate.

In one embodiment, the latch lock further comprises a shield disposed on a side of the latch housing facing away from the link assembly, the shield being disposed over the latch tongue.

The utility model provides a latch lock which comprises a buckle plate, a connecting rod assembly and a latch head assembly, wherein the connecting rod assembly is movably arranged at one side of the buckle plate; the bolt head assembly is movably arranged at the end part of the connecting rod assembly, the bolt head assembly comprises a bolt shell, a bolt tongue and a first elastic piece, the bolt tongue is movably arranged on the bolt shell in a penetrating mode and abuts against the bolt shell, the first elastic piece abuts against between the connecting rod assembly and the bolt tongue to drive the bolt tongue to push the bolt shell to move, and a fixing hole formed in the bolt shell is correspondingly communicated with a first through hole formed in the buckle plate. So, be convenient for follow-up through the fastener wear to locate first through-hole and with the fixed orifices cooperation to lock the latch head subassembly in the buckle, provide the basis for the correct assembly of latch head subassembly, promoted the assembly efficiency of latch lock, and reduced the assembly degree of difficulty of latch lock.

These and other aspects of the utility model will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the structure of a deadbolt lock provided by the present utility model.

Fig. 2 is an exploded view of the deadbolt shown in fig. 1.

Fig. 3 is a schematic view of a partial structure of the latch lock shown in fig. 1 after being mounted on a door frame profile.

Fig. 4 is a schematic view of the latch lock of fig. 1 with the shield removed.

Fig. 5 is a cross-sectional view of fig. 4 taken along A-A.

Fig. 6 is a partial enlarged view of fig. 5 at B.

Fig. 7 is an exploded view of the bolt head assembly and the bolt link of the latch of fig. 1.

Fig. 8 is a schematic view of the structure of the support of the latch lock of fig. 1.

Detailed Description

In order to facilitate an understanding of the embodiments of the present utility model, the embodiments of the present utility model will be described more fully below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the examples of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The inventor of the present utility model has found that some of the commercial latch locks are side-mounted, i.e., the center control latch lock and the latch head assembly are typically secured to the striker plate to form a unitary structure, which is then side-mounted to the door frame. For the side-mounted latch lock, the position of the latch head assembly relative to the buckle plate needs to be adjusted back and forth in the assembly process of the conventional latch lock, so that the latch head is assembled at a proper position on the buckle plate, and the assembly efficiency of the central control latch is caused.

In order to improve at least part of the above problems, the present utility model provides a latch lock, wherein a first elastic member is abutted between a connecting rod assembly and a latch tongue, so that the first elastic member can push a latch housing to move, and a fixing hole is correspondingly communicated with a first through hole, so that a latch head assembly can be conveniently locked to a buckle plate subsequently, a foundation is provided for correct assembly of the latch head assembly, and assembly efficiency of the latch lock is improved. The latch lock according to the present utility model will be described in detail with reference to the following embodiments and accompanying drawings.

Referring to fig. 1 to 8, the present utility model provides a latch lock 1, wherein the latch lock 1 includes a buckle plate 10, a link assembly 20 and a latch head assembly 40, and the buckle plate 10 is provided with a first through hole 12; the connecting rod assembly 20 is movably arranged at one side of the buckle plate 10; the latch head assembly 40 is movably disposed at an end of the link assembly 20, the latch head assembly 40 includes a latch housing 42, a latch tongue 44 and a first elastic member 46, the latch tongue 44 movably penetrates the latch housing 42 and abuts against the latch housing 42, a fixing hole 421 is disposed on a side wall of the latch housing 42, and the first elastic member 46 abuts between the link assembly 20 and the latch tongue 44 to drive the latch tongue 44 to push the latch housing 42 to move, so that the fixing hole 421 is correspondingly communicated with the first through hole 12.

Specifically, the buckle plate 10 has a substantially elongated structure. In this embodiment, the cross section of the buckle plate 10 is "U" shaped, i.e., the buckle plate 10 has a substantially U-shaped plate-like structure. In one embodiment, the gusset 10 may also be "L" shaped in cross-section, i.e., the gusset 10 may be generally "L" shaped plate-like structure. In another embodiment, the gusset 10 may also be a rectangular plate-like structure. The buckle plate 10 may be used to mount the linkage assembly 20 and the latch head assembly 40 to form an integral mechanism.

Referring to fig. 2 and 3, the buckle plate 10 is adapted to be fixedly connected with the door frame profile 2, wherein the door frame profile 2 is mounted on a door frame, and the door frame profile 2 may be made of metal, alloy or other materials. The pinch plate 10 shields a side groove (not shown) formed in the door frame section bar 2 so as to assemble the latch head assembly 40 and the connecting rod assembly 20 in the door frame section bar 2, thereby realizing side assembly of the latch lock 1 and greatly reducing the difficulty of assembling the latch lock 1 in the door frame section bar 2. In this embodiment, the side groove is formed on the side edge of the door frame section bar 2, so that the door frame section bar 2 has a substantially U-shaped plate structure, so as to form a space for accommodating the latch lock 1.

Referring to fig. 4, the buckle plate 10 is provided with a first through hole 12. The first through hole 12 corresponds to the position of the latch head assembly 40. In the present embodiment, the number of the first through holes 12 is two, and the number of the pin head assemblies 40 and the link assemblies 20 is two, and each set of the first through holes 12 corresponds to one pin head assembly 40. Each group of the first through holes 12 includes two first through holes 12 arranged at intervals along the length direction of the buckle plate 10, that is, the number of the first through holes 12 is 4. In this embodiment, the first through hole 12 is a tapered hole, and the hole diameter of the first through hole 12 gradually decreases from the outer surface of the buckle plate 10 to the inner surface of the buckle plate 10, wherein the inner surface of the buckle plate 10 is an unexposed surface, i.e. a surface close to the connecting rod assembly 20. In other embodiments, the first through hole 12 may be a circular hole, a square hole or another hole, which may be specifically set according to practical situations.

The linkage assembly 20 is movably disposed at one side of the buckle plate 10, for example, the linkage assembly 20 is movably disposed at an inner surface of the buckle plate 10. In this embodiment, the link assembly 20 is disposed through the latch housing 42 and partially disposed within the latch housing 42, and the link assembly 20 is movable relative to the latch housing 42.

Referring to fig. 2 and 6, the connecting rod assembly 20 includes a latch connecting rod 21, a connecting screw 23 and a connecting piece 25 sequentially connected, wherein the latch connecting rod 21 is penetrated through the latch housing 42, the connecting screw 23 is in threaded connection with the latch connecting rod 21, the connecting piece 25 is fixedly connected with the connecting screw 23 and is connected with a top pin and a bottom pin of the central lock, so that the central lock can drive the connecting piece 25 to move, and the connecting piece 25 sequentially drives the connecting screw 23 and the latch connecting rod 21 to move, thereby driving the latch head assembly 40 to extend or retract relative to the buckle plate 10. Wherein, the latch head assembly 40 extends out relative to the buckle plate 10 to lock the latch 1, and the latch head assembly 40 retracts relative to the buckle plate 10 to unlock the latch 1.

The inner wall of the link assembly 20 is provided with a stopper 212, specifically, the latch link 21 is of a substantially hollow structure, and the inner cavity of the latch link 21 is provided with the stopper 212 to stop the movement of the latch tongue 44 to prevent the latch tongue 44 from being separated from the latch link 21 during the movement. In the present embodiment, the stopper 212 is a stopper protruding from the inner wall of the latch link 21. In other embodiments, the stopper 212 may be a groove structure recessed in the inner wall of the latch link 21, so long as the stopper can stop the movement of the latch tongue 44.

The latch head assembly 40 is movably disposed at an end of the link assembly 20, and the latch head assembly 40 can move along a length direction of the buckle 10 relative to the link assembly 20, so that a fixing hole 421 formed on the latch housing 42 is correspondingly communicated with the first through hole 12 formed on the buckle 10, and the latch head assembly 40 is conveniently assembled on the buckle 10.

The latch housing 42 is of generally hollow rectangular parallelepiped configuration. The side wall of the latch housing 42 is provided with a fixing hole 421, and the fixing hole 421 is configured to cooperate with the first through hole 12, so that the latch head assembly 40 can be fixed to the buckle plate 10, for example, a fastener is threaded into the fixing hole 421 after passing through the first through hole 12, so as to achieve connection between the latch head assembly 40 and the buckle plate 10. In the present application, the number of the fixing holes 421 is the same as the number of the first through holes 12, that is, the number of the fixing holes 421 is also 4, and each fixing hole 421 may correspond to one first through hole 12.

Referring to fig. 5 to 7, the boss 423 is disposed on the outer surface of the latch housing 42, and the fixing hole 421 is disposed on the boss 423, so that the fixing hole 421 can be prevented from being formed on the side wall of the latch housing 42, thereby avoiding the excessive thickness of the side wall of the latch housing 42, and realizing the light weight of the latch lock 1. In the present embodiment, the fixing hole 421 is a through hole, that is, the fixing hole 421 communicates with the inner cavity of the latch housing 42. In other embodiments, the fixing hole 421 may be a blind hole, so long as the purpose of matching with the fastener is satisfied.

The latch tongue 44 is movably disposed through the latch housing 42 and abuts against the latch housing 42, specifically, an end surface of the latch tongue 44 abuts against an inner surface of the latch housing 42. The latch bolt 44 can extend or retract relative to the latch housing 42, and when the latch bolt 44 extends relative to the latch housing 42, the latch bolt 1 can be locked; unlocking of the deadbolt lock 1 can be achieved when the deadbolt tongue 44 is retracted relative to the deadbolt housing 42.

The latch tongue 44 includes a tongue body 441 and a connecting rod 443, where the tongue body 441 is disposed through the latch housing 42 and abuts against the inner wall of the latch housing 42. The end surface of the tongue body 441 facing away from the connecting rod 443 is an inclined surface, so that the latch tongue 44 can be extruded by the door frame to retract relative to the latch casing 42, the latch lock 1 does not need to be independently operated, and the operation process of the latch lock 1 is simplified. The connecting rod 443 is inserted into the connecting rod assembly 20, for example, the connecting rod 443 is accommodated in an inner cavity of the latch link 21 and is movable along a length direction of the latch link 21. The first elastic member 46 is wound around the connecting rod 443, so that the first elastic member 46 can be limited, and the first elastic member 46 is prevented from being separated from the latch head assembly 40 during the moving process of the latch head assembly 40.

The latch tongue 44 further includes a limiting member 445, where the limiting member 445 is connected to a side of the connecting rod 443 facing away from the tongue 441, and the cross-sectional area of the limiting member 445 is larger than that of the connecting rod 443, and the limiting member 445 abuts against the stop portion 212, so as to prevent the latch tongue 44 and the latch housing 42 from being separated from the connecting rod assembly 20 under the abutting action of the first elastic member 46. In this embodiment, the limiter 445 is a substantially rectangular plate-like structure. In other embodiments, the limiting member 445 may be circular, oval, triangular, or other shapes, as long as the connecting rod 443 is able to move along the length direction of the latch connecting rod 21 and abuts against the stop portion 212 during the movement.

The first elastic member 46 abuts between the connecting rod assembly 20 and the latch tongue 44, so as to drive the latch tongue 44 to push the latch housing 42 to move, and the fixing hole 421 is correspondingly communicated with the first through hole 12. Specifically, the first resilient member 46 abuts between the end of the linkage assembly 20 and the latch tongue 44. Thus, the bolt head assembly 40 is conveniently and subsequently penetrated through the first through hole 12 through the fastener and matched with the fixing hole 421 so as to be locked on the buckle plate 10, a foundation is provided for the correct assembly of the bolt head assembly 40, the assembly efficiency of the bolt lock 1 is improved, and the assembly difficulty of the bolt lock 1 is reduced. In the present application, the first elastic member 46 is a compression spring. In other embodiments, the first elastic member 46 may also be an elastic structure made of rubber or silicone.

The latch head assembly 40 further includes a second resilient member 48 disposed within the latch housing 42 and abutting between the inner wall of the latch housing 42 and the latch tongue 44 to provide a force with which the latch tongue 44 extends out of the latch housing 42. Specifically, the latch tongue 44 is retracted relative to the latch housing 42 under the abutting action of the door frame, so that the second elastic member 48 is compressed, and when the abutting action of the door frame is removed, the second elastic member 48 returns, and the latch tongue 44 is pushed to extend relative to the latch housing 42 by the elastic force generated by the second elastic member 48, so as to lock the latch lock 1. The second elastic member 48 is also a compression spring.

The second elastic member 48 is sleeved on the outer circumferences of the connecting rod assembly 20 and the first elastic member 46, specifically, the second elastic member 48 is sleeved on the outer circumferential surface of the latch connecting rod 21, so that the latch connecting rod 21 can limit the second elastic member 48, the second elastic member 48 can only deform along the length direction of the latch connecting rod 21, radial component force is avoided, and sufficient axial force is ensured to be used for pushing the latch tongue 44 to move. The second elastic member 48 is sleeved on the outer periphery of the first elastic member 46, and can also limit the first elastic member 46.

Referring to fig. 6 and 8, the latch lock 1 further includes a support member 50 and a fastener (not shown), wherein the support member 50 is disposed between the latch housing 42 and the buckle plate 10, and the support member 50 abuts against the latch housing 42 to support the latch head assembly 40 and fill the gap between the buckle plate 10 and the latch head assembly 40, so as to avoid deformation of the buckle plate 10 when the fastener locks the latch head assembly 40 and the buckle plate 10 due to excessive gap. The support 50 is provided with a second through hole 512, and a fastener is inserted through the first through hole 12 and the second through hole 512 and cooperates with the fixing hole 421 to fix the support 50 and the latch head assembly 40 to the buckle plate 10. The fastener may be a fastening screw.

The support 50 includes a support plate 51, an abutment portion 53, and a sliding portion 55, the support plate 51 abuts against the boss 423, so that the boss 423 can support the support plate 51, avoiding deformation of the support plate 51. The abutting portion 53 and the sliding portion 55 are provided on the same side of the support plate 51, and the abutting portion 53 abuts against the plug housing 42 to support the plug housing 42. The sliding part 55 extends outwards from the support plate 51, and the sliding part 55 can be in sliding fit with the door frame section bar 2, for example, the door frame section bar 2 can be provided with a guide groove formed along the length direction of the door frame section bar 2, and the sliding part 55 is accommodated in the guide groove and can move along the extending direction of the guide groove, so that the support piece 50 can be slidably pushed into the door frame section bar 2, and the assembly difficulty of the support piece 50 is reduced. In this embodiment, the number of support members 50 is two, each support member 50 cooperating with one latch head assembly 40.

With continued reference to fig. 1 and 2, the latch lock 1 further includes a shielding member 60, where the shielding member 60 is disposed on a side of the latch housing 42 facing away from the link assembly 20, and the shielding member 60 is sleeved on the latch tongue 44 to shield the latch housing 42 from exposure of the latch housing 42, so as to promote the uniformity of appearance of the latch lock 1. In this embodiment, the shield 60 may be a plastic piece. The shutter 60 may be embedded in the door frame profile 2.

Latch lock 1 further includes a center control lock 80, wherein center control lock 80 is coupled to an end of linkage assembly 20 facing away from latch head assembly 40 such that user operation of center control lock 80 controls the extension or retraction of latch head assembly 40 relative to striker plate 10. The specific structure of the center control lock 80 may refer to the prior art, and will not be described herein.

In this embodiment, the opposite ends of the central lock 80 are connected to one link assembly 20, and each link assembly 20 is connected to one latch head assembly 40, so that the central lock 80 can control the movement of both the upper and lower latch head assemblies 40.

The installation process of the latch lock 1 provided by the utility model is as follows:

Firstly, the bolt head assembly 40, the connecting rod assembly 20 and the central control lock 80 are sequentially connected with the buckle plate 10 to form an integral structure, then the integral structure is pushed into the door frame section 2 from the side edge of the door frame section 2, the supporting piece 50 is pushed into the door frame section 2, so that the supporting piece 50 is positioned between the bolt head assembly 40 and the buckle plate 10, the bolt head assembly 40 and the supporting piece 50 are locked with the buckle plate 20 through the fastening pieces, and finally the limiting piece 445 is sleeved on the periphery of the bolt tongue 44, so that the assembly of the bolt lock 1 is completed.

In summary, the latch lock 1 provided by the present utility model includes a buckle plate 10, a link assembly 20 and a latch head assembly 40, wherein the link assembly 20 is movably disposed at one side of the buckle plate 10; the latch head assembly 40 is movably disposed at an end of the link assembly 20, the latch head assembly 40 includes a latch housing 42, a latch tongue 44 and a first elastic member 46, the latch tongue 44 movably penetrates the latch housing 42 and abuts against the latch housing 42, and the first elastic member 46 abuts between the link assembly 20 and the latch tongue 44 to drive the latch tongue 44 to push the latch housing 42 to move, so that a fixing hole 421 formed in the latch housing 42 is correspondingly communicated with the first through hole 12 formed in the buckle 10. Thus, the bolt head assembly 40 is conveniently and subsequently penetrated through the first through hole 12 through the fastener and matched with the fixing hole 421 so as to be locked on the buckle plate 10, a foundation is provided for the correct assembly of the bolt head assembly 40, the assembly efficiency of the bolt lock 1 is improved, and the assembly difficulty of the bolt lock 1 is reduced.

In the present invention, the term "assembled" and the like should be construed broadly unless explicitly stated or limited otherwise. For example, the connection can be fixed connection, detachable connection or integral connection; may be a mechanical connection; the connection may be direct, indirect, or internal, or may be surface contact only, or may be surface contact via an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as a specific or particular structure. The description of the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present invention, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples of the present invention and features of various embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A deadbolt lock, comprising:

the buckle plate is provided with a first through hole;

The connecting rod assembly is movably arranged on one side of the pinch plate; and

The bolt head assembly is movably arranged at the end part of the connecting rod assembly, the bolt head assembly comprises a bolt housing, a bolt tongue and a first elastic piece, the bolt tongue movably penetrates through the bolt housing and abuts against the bolt housing, a fixing hole is formed in the side wall of the bolt housing, and the first elastic piece abuts against between the connecting rod assembly and the bolt tongue to drive the bolt tongue to push the bolt housing to move, so that the fixing hole is correspondingly communicated with the first through hole.

2. The latch lock of claim 1 wherein said latch tongue includes a tongue body and a connecting rod connected thereto, said tongue body extending through said latch housing and abutting against an inner wall of said latch housing, said connecting rod extending through said connecting rod assembly, said first resilient member being disposed about said connecting rod.

3. The latch lock according to claim 2, wherein the latch tongue further comprises a limiting member, the limiting member is connected to a side of the connecting rod facing away from the tongue body, a cross-sectional area of the limiting member is larger than that of the connecting rod, a stop portion is provided on an inner wall of the connecting rod assembly, and the limiting member abuts against the stop portion.

4. The deadbolt lock of claim 1, wherein said deadbolt head assembly further comprises a second resilient member disposed within said deadbolt housing and abutting between an inner wall of said deadbolt housing and said deadbolt tongue to provide a force with which said deadbolt tongue extends out of said deadbolt housing.

5. The deadbolt lock of claim 4, wherein said link assembly is disposed through said deadbolt housing, said first resilient member is disposed in abutment between an end of said link assembly and said deadbolt tongue, and said second resilient member is disposed around an outer periphery of said link assembly and said first resilient member.

6. The latch lock of claim 1, wherein said gusset is adapted to be secured to a door frame profile and conceal side slots defined in said door frame profile to fit said latch head assembly and said link assembly within said door frame profile.

7. The deadbolt lock of claim 6, further comprising a support member disposed between said deadbolt housing and said pinch plate, said support member being in abutment with said deadbolt housing, said support member being provided with a second through hole, and a fastener disposed through said first and second through holes and engaging said securing hole.

8. The deadbolt lock of claim 7, wherein said support member includes a support plate, an abutment portion and a sliding portion, said abutment portion and said sliding portion being disposed on a same side of said support plate, said abutment portion abutting said deadbolt housing, said sliding portion extending outwardly from said support plate, said sliding portion being capable of sliding engagement with said door frame profile.

9. The latch lock of claim 8 wherein said outer surface of said latch housing is provided with a boss, said securing aperture being provided in said boss, said boss abutting said support plate.

10. The deadbolt lock of any of claims 1-9, further comprising a shield disposed on a side of the deadbolt housing facing away from the linkage assembly, the shield being disposed over the deadbolt tongue.