CN210858247U - Structure of children's safe type fast-assembling lock - Google Patents

Abstract

The utility model discloses a structure of children's safety type fast-assembling door lock, including back lock body, back lock body apron, door shield, preceding lock body, compression spring and transmission post, preceding lock body includes outer panel casing, apron, handle, return plectrum, driving gear, jump ring and drive gear, wherein, the ring cover of outer panel casing is connected with the handle, the ring cover is connected with drive gear's cylinder, the "one" word draw-in head in the middle of the round hole of driving gear is connected with the "one" word opening of handle, the driving gear is connected with drive gear, the apron is connected with outer panel casing, compression spring places between the transmission post and the fillet rectangular hole of handle; the through-hole of back lock body apron is connected to the interior panel casing of back lock body, the recess of bolt connection door shield, inhales the magnet knocker and connects the magnet subassembly of door shield, and the small cylinder portion of the middle-end of transmission post is connected with the fillet rectangular hole of the drive gear of preceding lock body, and the fillet rectangular portion of front end is connected with the fillet rectangular shrinkage pool of the handle of back lock body.

Description

Structure of children's safe type fast-assembling lock

Technical Field

The utility model relates to a technical field of lock, concretely relates to structure of children's safety type fast-assembling lock.

Background

The applicant originally mentioned a patent document of a quick-assembly type door lock structure, application number: 201910419083.0, it discloses a fast-assembling door lock structure, including a lock body, a back cover plate and a door stop, the lock body includes an inner panel shell, a handle, a return plectrum, a gasket, a snap spring, a spring, an arc bolt and a magnetic door lock, the circular ring sleeve of the inner panel shell of the lock body is connected with the handle, the arc sleeve is connected with a compression spring, the arc groove is connected with the arc bolt, the threaded blind hole is connected with the magnetic door lock through a screw; the threaded blind hole of the inner panel shell of the lock body is connected with the rear cover plate, the arc-shaped bolt is connected with the groove of the door shield, and the magnetic absorption door catch is connected with the magnet assembly of the door shield. The door leaf of the quick-assembly door lock structure can be closed without using a key lock, and can be reversely locked indoors, and the door leaf does not need to be provided with side holes and through holes during installation, is simple and convenient to install, and has a compact and attractive structure.

However, the door lock structure is not perfect: because the door can not be opened outside the room after being locked, the door is unsafe when being used in a children room with immature mind.

In view of the above, a technical problem to be solved by those skilled in the art is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a door leaf uses magnet to close, indoor can the anti-lock, when installing, the door leaf only needs a square strip through hole, installation simple and convenient, the safe type fast-assembling lock structure of children that can open again when needs simultaneously.

In order to achieve the above object, the utility model adopts the following technical scheme:

a structure of a child safety type fast-assembling door lock comprises a rear lock body, a rear lock body cover plate, a door stop, a front lock body, a compression spring and a transmission column, and is characterized in that the front lock body comprises an outer panel shell, a cover plate, a handle, a return shifting piece, a driving gear, a clamp spring and a transmission gear, wherein a circular ring sleeve of the outer panel shell is connected with the handle, the circular ring sleeve is connected with a cylinder of the transmission gear, a straight clamping head in the middle of a circular hole of the driving gear is connected with a straight opening of the handle, the driving gear is connected with the transmission gear, the cover plate is connected with the outer panel shell, and the compression spring is placed between the transmission column and a round rectangular hole of the handle; the through-hole of back lock body apron is connected to the interior panel casing of back lock body, and the recess of bolt connection door shield inhales the magnet door lock and detains the magnet subassembly of connecting the door shield, the small circle post portion of the middle-end of transmission post is connected with the fillet rectangular hole of the drive gear of preceding lock body, and the fillet rectangular portion of front end is connected with the fillet rectangular shrinkage pool of the handle of back lock body, and the fillet rectangular portion of rear end is connected with the small circle ring cover of outer panel casing.

Furthermore, the rear lock body comprises an inner panel shell, a handle, a return shifting piece, a gasket, a clamp spring, a bolt and a magnetic door catch;

the middle of the inner surface of the inner panel shell is provided with a circular sleeve which is used for being connected with a handle; the outer part of the circular ring sleeve is provided with three sections of arc sleeves with the same center of circle, and the arc sleeves are used for connecting the compression spring; the upper part of the arc-shaped sleeve is provided with an oblong column which is used for connecting an oblong through hole of the bolt; the upright post is provided with a threaded blind hole for connecting a through hole of the rear cover plate through a screw; the lower part and the side edge of the arc-shaped sleeve are respectively provided with a cylinder which is used for connecting a notch through hole of the magnetic door catch; the cylinder is provided with a threaded blind hole for connecting a through hole of the rear cover plate through a screw; the upper part and the lower part of the inner surface of the inner panel shell are respectively provided with a partition bulge which is used for connecting two ends of the rear cover plate to form a closed space, and the partition bulge at the upper part simultaneously plays a role in limiting the plug pin; the upper end and the lower end of the inner surface of the inner panel shell are respectively provided with a through hole for connecting with a door leaf through a screw, and the upper part of the side edge of the surrounding edge of the inner panel shell is provided with a rectangular hole for penetrating through a bolt; the lower part of the side edge of the surrounding edge of the inner panel shell is provided with a long rectangular hole for passing through the magnetic door catch;

the rear part of the handle is provided with a cylindrical handle, the front part of the cylindrical handle is provided with a round-angle rectangular concave hole, a straight-line-shaped opening and a clamping groove, the round-angle rectangular concave hole is used for connecting a transmission column, and the straight-line-shaped opening and the clamping groove are respectively used for connecting a straight-line-shaped clamping head and a clamping spring of the return shifting piece;

the middle of the return shifting piece is provided with a round hole which is used for being connected with a cylinder of a handle, the middle of the round hole is provided with a linear clamping head which is used for being connected with a linear opening of the handle, the bottom of the return shifting piece is provided with two protruding steps which are used for being connected with a compression spring, and the upper part of the return shifting piece is provided with a round head shifting piece which is used for shifting a bolt to enable the bolt to horizontally move;

the bolt is provided with a long round through hole in the middle for connecting the stand column of the inner panel shell, the front end of the long round through hole is an extending part, the bottom of the long round through hole is provided with a front rectangular column and a rear rectangular column, the extending part is connected with a groove of the door stop when the round head shifting piece of the return shifting piece shifts the front rectangular column, and the extending part is separated from the groove of the door stop when the round head shifting piece of the return shifting piece shifts the rear rectangular column.

The front part of the magnetic door catch is provided with a rectangular step for being adsorbed on a magnet assembly of a door shield, so that a door leaf can be fixed on a door frame, and the rear part of the magnetic door catch is provided with two notch through holes for being connected with a cylinder of an inner panel shell. The ring sleeve of the inner panel shell of the lock body is connected with the handle, the stand column is connected with the long round through hole of the bolt, and the cylinder on the inner surface of the inner panel shell is connected with the notch through hole of the magnetic door catch.

Furthermore, the main body of the rear lock body cover plate is a thin sheet, and a large through hole is formed in the middle of the rear lock body cover plate and used for penetrating through the transmission column; the middle of the inner panel shell is provided with a through hole towards the two ends respectively, and the through holes are used for being connected with the threaded blind holes of the inner panel shell through screws.

Further, the door shield comprises a door shield shell, a magnet assembly and an elastic body;

the magnetic door shield comprises a door shield shell and is characterized in that a groove is formed in the upper portion of the back of the door shield shell and used for connecting a bolt, a cavity is formed in the lower portion of the back of the door shield shell and used for connecting a magnet assembly, a shallow groove is formed in the front face of the door shield shell opposite to the cavity and used for accommodating a rectangular step of a magnetic door catch, through holes are formed in the two ends of the door shield shell and used for being connected with a door frame through screws, the magnet assembly consists of magnets on the two sides and an interlayer in the middle of the magnet assembly and used for being magnetically attracted to connect the magnetic door catch, the elastic body is a rubber sheet and used for sealing the bottom of the cavity of the door shield shell and playing a buffering role when the.

Furthermore, the front lock body comprises an outer panel shell, a cover plate, a handle, a return shifting piece, a driving gear, a spring and a transmission gear;

the middle of the inner surface of the outer panel shell is provided with a ring sleeve, the middle of the inner surface of the outer panel shell is used for being connected with a handle, the periphery of the outer surface of the outer panel shell is used for being connected with a compression spring, three sections of concentric arc sleeves are arranged outside the ring sleeve and used for positioning the compression spring, a small ring sleeve is arranged beside the arc sleeves and used for being connected with a small cylindrical part of a transmission column, a small circular hole is arranged in the middle of the small ring sleeve and used for being inserted into the small cylinder from the outside to push the transmission column to move when the door needs to be unlocked from the outside so that the circular rectangular part of the transmission column is connected with a circular rectangular hole in the transmission gear to realize transmission, the upper part and the lower part of the outer panel shell are respectively provided with a screw hole which is used for being connected;

the main body of the cover plate is a thin sheet, and a through hole is formed in the middle of one side of the cover plate and used for penetrating through the transmission column. The four corners are respectively provided with a small through hole which is used for being in threaded connection with the blind hole of the outer panel shell through a screw;

the middle of the return shifting piece is provided with a round hole which is used for being connected with a cylinder of the handle, and the middle of the round hole is provided with a straight clamping head which is used for being connected with a straight opening of the handle; the bottom of the return shifting piece is provided with two protruding steps for connecting a compression spring;

the middle of the driving gear is provided with a round hole which is used for being connected with a cylinder of a handle, the middle of the round hole is provided with a straight-line-shaped chuck which is used for being connected with a straight-line-shaped opening of the handle, and the excircle or one side of the driving gear is provided with transmission teeth which are used for being in transmission connection with a transmission gear;

the transmission gear is provided with a round-corner rectangular hole in the middle and is used for being connected with the round-corner rectangular part of the transmission column, the round-corner rectangular hole at the rear part of the middle is externally provided with a cylinder and is used for being connected with a small circular ring sleeve of the outer panel shell, and the outer circle or one side of the transmission gear is provided with transmission teeth and is used for being in transmission connection with the driving gear;

the spring is a compressed spring wound by a steel wire and has resilience, is placed between the transmission column and the round-corner rectangular hole of the handle, has the same outer diameter as the transmission column, and is used for extruding the transmission column to ensure that the small column part of the transmission column is separated from the round-corner rectangular hole of the transmission gear;

the round ring cover of outer panel casing is connected with the handle, and small circle ring cover is connected with drive gear's cylinder, the round hole of return plectrum is connected with the cylinder of handle, and "one" word opening of handle is connected to "one" word chuck in the middle of the round hole, the round hole of driving gear is connected with the cylinder of handle, and "one" word opening of handle is connected to "one" word chuck in the middle of the round hole, driving gear connection drive gear, the little through-hole of apron passes through the screw and is connected with the blind hole of outer panel casing, the spring is placed between transmission post and handle fillet rectangular hole.

Furthermore, the front part and the rear part of the transmission column are in a round corner rectangle and are used for transmission, and the middle end of the transmission column is in a small round column part and is used for playing a clutch role.

The utility model discloses beneficial effect:

the structure of the safe quick-assembly door lock for children comprises a rear lock body, a rear lock body cover plate, a door stop, a front lock body, a compression spring and a transmission column, wherein the front lock body comprises an outer panel shell, a cover plate, a handle, a return shifting piece, a driving gear, a clamp spring and a transmission gear; the through-hole of back lock body apron is connected to the interior panel casing of back lock body, and the recess of bolt connection door shield inhales the magnet door lock and detains the magnet subassembly of connecting the door shield, the small circle post portion of the middle-end of transmission post is connected with the fillet rectangular hole of the drive gear of preceding lock body, and the fillet rectangular portion of front end is connected with the fillet rectangular shrinkage pool of the handle of back lock body, and the fillet rectangular portion of rear end is connected with the small circle ring cover of outer panel casing.

After the scheme above the adoption, the beneficial effects of the utility model are that the door leaf uses magnet to close, indoor can the back lock, when installing the door leaf need not open side opening and through hole, installation simple and convenient, can open again when needs simultaneously.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of a combination of the present invention;

fig. 2 is a schematic view of the rear part of the door lock composed of the rear lock body, the rear lock body cover plate and the door stop of the present invention;

fig. 3 is a perspective structure diagram of the rear part of the door lock composed of the rear lock body, the rear lock body cover plate and the door stop of the present invention;

fig. 4 is a schematic view of the rear lock body of the present invention;

fig. 5 is a schematic view of the lock body of the present invention;

FIG. 6 is a schematic view of the inner panel housing of the present invention;

fig. 7 is a schematic view of the handle of the present invention;

fig. 8 is a schematic view of the return paddle of the present invention.

Figure 9 is a schematic view of the latch of the present invention;

FIG. 10 is a schematic view of the magnetic door latch of the present invention;

fig. 11 is a schematic view of the rear cover plate of the present invention;

fig. 12 is a schematic view of the door shield of the present invention;

fig. 13 is a schematic view of the door shield of the present invention;

FIG. 13-1 is a schematic view of a door shield housing of the present invention;

fig. 13-2 is a schematic view of the magnet assembly of the present invention;

fig. 14 is a perspective schematic view of the front lock body of the present invention;

fig. 15 is a perspective schematic view of the front lock body of the present invention;

fig. 16 is a schematic view of the outer panel housing of the present invention;

fig. 17 is a schematic view of the cover plate of the present invention;

fig. 18 is a schematic view of the return finger of the front lock body of the present invention.

Fig. 19 is a schematic view of a drive gear of the present invention;

fig. 20 is a schematic view of the drive gear of the present invention;

figure 21 is a schematic view of the compression spring of the present invention;

figure 22 is a schematic view of the drive column of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the structure of the child-resistant fast-assembling door lock provided in this embodiment includes a rear lock body 10, a rear lock body cover plate 20, a door stop 30, a front lock body 40, a compression spring 61, and a transmission column 50, and a rear portion of the door lock, which is composed of the rear lock body 10, the rear lock body cover plate 20, and the door stop 30, is as shown in fig. 2 and fig. 3.

After adopting following scheme, this child's safe type fast-assembling lock's structure's beneficial effect is that the door leaf uses magnet to close, indoor can the back lock, the door leaf need not open side opening and through hole, installation simple and convenient when the installation, can open again when needs simultaneously.

As shown in fig. 15 and 16, the front lock body 40 includes an outer panel casing 41, a cover plate 42, a handle 43, a return pulling piece 44, a driving gear 45, a snap spring 46 and a transmission gear 47; obviously, as in the prior art, a compression spring is required to be connected under the return finger 44. As the compression spring is not visible in the figures, outlined.

The circular sleeve 411 of the outer panel shell 41 is connected with the handle 43, the circular sleeve 411 is connected with a cylinder of the transmission gear 47, a straight clamping head 452 in the middle of a circular hole 451 of the driving gear 45 is connected with a straight opening of the handle 43, the driving gear 45 is connected with the transmission gear 47, the cover plate 42 is connected with the outer panel shell 41, and the compression spring 61 is placed between the transmission column 50 and a round rectangular hole of the handle 43; the through-hole of back lock body apron 20 is connected to the interior panel casing 11 of back lock body 10, the recess 311 of door shield 30 is connected to bolt 16, inhale magnet knocker 17 and connect the magnet subassembly 32 of door shield 30, the small circle post 52 part of the middle-end of transmission post 50 is connected with the fillet rectangle hole 471 of the drive gear 47 of preceding lock body 40, the fillet rectangle 51 part of front end is connected with the fillet rectangle shrinkage pool of the handle of back lock body 10, the fillet rectangle 51 part of rear end is connected with the small circle ring cover 413 of outer panel casing 41.

As shown in fig. 4, 5 and 6, the rear lock body 10 of fig. 2 includes an inner panel shell 11, a lever handle 12, a return pick 13, a spacer 14, a snap spring 15, a bolt 16 and a magnetic door catch 17; as in the prior art, the compression spring 61 is connected to the bottom of the return poke piece 13. The spacer 14 and the circlip 15 are conventional components, outlined.

The middle of the inner surface of the inner panel shell 11 is provided with a circular sleeve 111 which is used for being connected with a handle 12; three concentric arc sleeves 112 are arranged outside the circular ring sleeve 111 and are used for connecting compression springs; the upper part of the arc-shaped sleeve 112 is provided with an oblong upright post 113 which is used for connecting an oblong through hole 161 of the bolt 16; the upright post 113 is provided with a threaded blind hole 114 for connecting a through hole of the rear cover plate through a screw; the lower part and the side edge of the arc-shaped sleeve 112 are respectively provided with a cylinder 115 which is used for connecting a notch through hole 172 of the magnetic door catch 17; the cylinder 115 is provided with a threaded blind hole for connecting a through hole of the rear cover plate through a screw; the upper part and the lower part of the inner surface of the inner panel shell 11 are respectively provided with a partition bulge 116 which is used for connecting two ends of the rear cover plate to form a closed space, and the partition bulge 116 at the upper part simultaneously plays a role in limiting the bolt 16; the upper and lower ends (outside the partition protrusion 116) of the inner surface of the inner panel shell 11 are respectively provided with a through hole 117 for connecting with the door leaf through a screw, and the upper part of the side edge of the surrounding edge of the inner panel shell 11 is provided with a rectangular hole 118 for passing through the bolt 16; the lower part of the side edge of the surrounding edge of the inner panel shell 11 is provided with a long rectangular hole 119 for passing through the magnetic door catch 17;

as shown in fig. 7, the handle 121 is arranged at the rear part of the handle 12, the cylinder 122 is arranged at the front part of the handle 121, the round-corner rectangular concave hole, the straight opening 123 and the clamping groove 124 are arranged at the front end of the cylinder 122, the round-corner rectangular concave hole is used for connecting the transmission column 50, and the straight opening 123 and the clamping groove 124 are respectively used for connecting the straight clamping head 132 and the clamping spring 15 of the return pulling piece 13;

as shown in fig. 8, the middle of the return shifting piece 13 is a circular hole 131 for connecting with the cylinder 122 of the handle 12, the middle of the circular hole 131 is a "one" shaped clamping head 132 for connecting with the "one" shaped opening 123 of the handle 12, the bottom of the return shifting piece 13 is provided with two protruding steps 133 for connecting with a compression spring, and the upper part of the return shifting piece 13 is provided with a round head shifting piece 134 for shifting the bolt 16 to make it move horizontally;

as shown in fig. 9, the bolt 16 has a long through hole 161 in the middle thereof for connecting the upright post 113 of the inner panel housing 11, the front end of the long through hole 161 is an extension 162, the bottom of the long through hole 161 is provided with a front rectangular post 163 and a rear rectangular post 164, the extension 162 is connected with the groove 311 of the door stopper 30 when the round-head toggle piece 134 of the return toggle piece 13 toggles the front rectangular post 163, and the extension 162 is separated from the groove 311 of the door stopper 30 when the round-head toggle piece 134 of the return toggle piece 13 toggles the rear rectangular post 164.

As shown in fig. 10, the magnetic door latch 17 has a rectangular step 171 at the front for attaching to the magnet assembly 32 of the door stop 30 to fix the door to the door frame, and two through holes 172 at the rear for connecting the cylinders 113 of the inner panel housing 11.

The circular sleeve 111 of the inner panel shell 11 of the rear lock body 10 is connected with the handle 12, the upright post 113 is connected with the long round through hole 161 of the bolt 16, and the cylinder 115 on the inner surface of the inner panel shell 11 is connected with the notch through hole 172 of the magnetic door catch 17.

Figure 11 shows the rear lock cover plate 20 which is a thin plate with a large through hole 21 in the middle for passing through the transmission post 50; and a through hole 23 is formed in the middle towards both ends for connecting with the threaded blind hole 114 of the inner panel shell 11 through a screw.

As shown in fig. 12 to 13-2, the door shield 30 includes a door shield case 31, a magnet assembly 32, and an elastic body 33;

the upper portion of the back of the door shield shell 31 is provided with a groove 311 for connecting the bolt 16, the lower portion of the back is provided with a cavity 312 for connecting the magnet assembly 32, the front of the door shield shell 31 opposite to the cavity 312 is provided with a shallow groove 313 for accommodating the rectangular step 171 of the magnetic door catch 17, two ends of the door shield shell 31 are respectively provided with a through hole 314 for connecting with a door frame through screws, the magnet assembly 32 is composed of magnets 321 on two sides and an interlayer 322 in the middle for magnetically connecting the magnetic door catch 17, the elastic body 33 is a rubber sheet for sealing the bottom of the cavity of the door shield shell 31 and playing a role of buffering when the door is closed, and the cavity 312 of the door shield shell 31 is connected with the magnet assembly 32 and the elastic body 33.

Fig. 14 and 15 show a front lock body 40, which includes an outer panel casing 41, a cover plate 42, a handle 43, a return pulling piece 44, a driving gear 45, a snap spring 46 and a transmission gear 47; as in the prior art, a compression spring is required to be connected below the return shifting piece 44. As the compression spring is not visible in the figures, outlined.

Fig. 16 shows that, the outer panel shell 41 has a circular ring sleeve 411 in the middle of its inner surface, the middle is used for connecting with the handle 43, the periphery is used for connecting with the compression spring, three concentric arc sleeves 412 are provided outside the circular ring sleeve 411 for positioning the compression spring, a small circular ring sleeve 413 is provided beside the arc sleeve 412 for connecting with the small circular cylinder 52 part of the transmission column 50, a small circular hole 414 is provided in the middle of the small circular ring sleeve 413 for inserting the small circular cylinder 52 from outside to push the transmission column 50 to move so that the circular rectangular 51 part is connected with the circular rectangular hole 471 inside the transmission gear 47 to realize transmission when the lock needs to be unlocked from outside, the upper and lower of the outer panel shell 41 are respectively provided with a screw hole 415 for connecting with the door leaf by screws, and the four corners of the outer panel shell 41 are respectively provided with a blind hole 416 for connecting with the cover plate 42 by screws;

referring to fig. 17, the cover plate 42 is a thin plate having a through hole in the middle of one side for passing through the driving post 50. Each of the four corners is provided with a small through hole 422 for screw connection with the blind hole of the outer panel shell 41;

as shown in fig. 18, the return shifting piece 44 has a circular hole 441 in the middle thereof for connecting with the cylinder of the handle 43, and a "one" shaped clamping head 442 in the middle of the circular hole 441 for connecting with the "one" shaped opening of the handle 43; the bottom of the return shifting piece 44 is provided with two protruding steps 443 for connecting a compression spring;

as shown in fig. 19, the driving gear 45 is provided with a circular hole 451 in the middle for connecting with the cylinder of the handle 43, the circular hole 451 is provided with a straight clamping head 452 in the middle for connecting with the straight opening of the handle 43, and the driving gear 45 is provided with a transmission gear 453 on the outer circle or one side for transmission connection with the transmission gear 47;

as shown in fig. 20, the transmission gear 47 has a rounded rectangular hole 471 at the center thereof for connecting with the rounded rectangular part 51 of the transmission column 50, the rounded rectangular hole 471 at the rear of the center thereof is externally provided with a cylinder (472, 473) for connecting with the small circular ring sleeve 413 of the outer panel housing 41, and the transmission gear 47 has a transmission tooth 474 at the outer circle or one side thereof for transmission connecting with the driving gear 45;

as shown in fig. 21, the compression spring 61 is a spring wound by a steel wire and having a resilience after being compressed, and is placed between the transmission column 50 and the rounded rectangular hole of the handle, and has an outer diameter the same as the transmission column 50, and is used for extruding the transmission column 50, so that the small column 52 of the transmission column 50 is partially separated from the rounded rectangular hole of the transmission gear;

the round-ring sleeve 411 of the outer panel shell 41 is connected with the handle 43, the small round-ring sleeve 413 is connected with the cylinder 472 of the transmission gear 47, the round hole 441 of the return shifting piece 44 is connected with the cylinder of the handle 43, the straight clamping head 442 in the middle of the round hole 441 is connected with the straight opening of the handle 43, the round hole 451 of the driving gear 45 is connected with the cylinder of the handle 43, the straight clamping head 452 in the middle of the round hole 451 is connected with the straight opening of the handle 43, the driving gear 45 is connected with the transmission gear 47, the small through hole 422 of the 42 cover plate is connected with the blind hole 416 of the outer panel shell 41 through a screw, and the compression spring 61 is placed between the transmission column 50 and the round rectangular hole of the handle 43.

In fig. 22, the drive column 50 is shown with rounded rectangles 51 at the front and rear for driving and a small cylinder 52 at the end for clutching.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The invention is not limited to the embodiments described herein, but is capable of other embodiments with obvious modifications and variations, including those shown in the drawings and described herein. Therefore, the equivalent changes made according to the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.

Claims (6)

1. A structure of a child safety type fast-assembling door lock comprises a rear lock body, a rear lock body cover plate, a door stop, a front lock body, a compression spring and a transmission column, and is characterized in that the front lock body comprises an outer panel shell, a cover plate, a handle, a return shifting piece, a driving gear, a clamp spring and a transmission gear, wherein a circular ring sleeve of the outer panel shell is connected with the handle, the circular ring sleeve is connected with a cylinder of the transmission gear, a straight clamping head in the middle of a circular hole of the driving gear is connected with a straight opening of the handle, the driving gear is connected with the transmission gear, the cover plate is connected with the outer panel shell, and the compression spring is placed between the transmission column and a round rectangular hole of the handle; the through-hole of back lock body apron is connected to the interior panel casing of back lock body, and the recess of bolt connection door shield inhales the magnet door lock and detains the magnet subassembly of connecting the door shield, the small circle post portion of the middle-end of transmission post is connected with the fillet rectangular hole of the drive gear of preceding lock body, and the fillet rectangular portion of front end is connected with the fillet rectangular shrinkage pool of the handle of back lock body, and the fillet rectangular portion of rear end is connected with the small circle ring cover of outer panel casing.

2. The structure of the child safety type fast-assembling door lock according to claim 1, wherein the rear lock body comprises an inner panel shell, a handle, a return shifting piece, a gasket, a clamp spring, a bolt and a magnetic door catch;

the middle of the inner surface of the inner panel shell is provided with a circular sleeve which is used for being connected with a handle; the outer part of the circular ring sleeve is provided with three sections of arc sleeves with the same center of circle, and the arc sleeves are used for connecting the compression spring; the upper part of the arc-shaped sleeve is provided with an oblong column which is used for connecting an oblong through hole of the bolt; the upright post is provided with a threaded blind hole for connecting a through hole of the rear cover plate through a screw; the lower part and the side edge of the arc-shaped sleeve are respectively provided with a cylinder which is used for connecting a notch through hole of the magnetic door catch; the cylinder is provided with a threaded blind hole for connecting a through hole of the rear cover plate through a screw; the upper part and the lower part of the inner surface of the inner panel shell are respectively provided with a partition bulge which is used for connecting two ends of the rear cover plate to form a closed space, and the partition bulge at the upper part simultaneously plays a role in limiting the plug pin; the upper end and the lower end of the inner surface of the inner panel shell are respectively provided with a through hole for connecting with a door leaf through a screw, and the upper part of the side edge of the surrounding edge of the inner panel shell is provided with a rectangular hole for penetrating through a bolt; the lower part of the side edge of the surrounding edge of the inner panel shell is provided with a long rectangular hole for passing through the magnetic door catch;

the rear part of the handle is provided with a cylindrical handle, the front part of the cylindrical handle is provided with a round-angle rectangular concave hole, a straight-line-shaped opening and a clamping groove, the round-angle rectangular concave hole is used for connecting a transmission column, and the straight-line-shaped opening and the clamping groove are respectively used for connecting a straight-line-shaped clamping head and a clamping spring of the return shifting piece;

the middle of the return shifting piece is provided with a round hole which is used for being connected with a cylinder of a handle, the middle of the round hole is provided with a linear clamping head which is used for being connected with a linear opening of the handle, the bottom of the return shifting piece is provided with two protruding steps which are used for being connected with a compression spring, and the upper part of the return shifting piece is provided with a round head shifting piece which is used for shifting a bolt to enable the bolt to horizontally move;

the bolt is provided with a long round through hole in the middle for connecting the upright post of the inner panel shell, the front end of the long round through hole is provided with a protruding part, the bottom of the long round through hole is provided with a front rectangular post and a rear rectangular post, the protruding part is connected with the groove of the door stop when the round head shifting piece of the return shifting piece shifts the front rectangular post, the protruding part is separated from the groove of the door stop when the round head shifting piece of the return shifting piece shifts the rear rectangular post,

inhale magnetism knocker, its front portion is a rectangle step for adsorb on the magnet subassembly of door shield, make the door leaf can fix on the door frame, its rear portion has two breach through-holes for connect the cylinder of interior panel casing, the ring cover of the interior panel casing of lock body is connected with the handle, the long round through-hole of stand connecting bolt, the cylinder of interior panel casing inner face is connected with the breach through-hole of inhaling magnetism knocker.

3. The structure of the child-resistant quick-assembling door lock as claimed in claim 1, wherein the rear lock body cover plate is a thin plate with a large through hole in the middle for passing through the transmission post; the middle of the inner panel shell is provided with a through hole towards the two ends respectively, and the through holes are used for being connected with the threaded blind holes of the inner panel shell through screws.

4. The structure of the child-resistant quick-assembling door lock of claim 1, wherein the door stop comprises a door stop housing, a magnet assembly and an elastic body;

the magnetic door shield comprises a door shield shell and is characterized in that a groove is formed in the upper portion of the back of the door shield shell and used for connecting a bolt, a cavity is formed in the lower portion of the back of the door shield shell and used for connecting a magnet assembly, a shallow groove is formed in the front face of the door shield shell opposite to the cavity and used for accommodating a rectangular step of a magnetic door catch, through holes are formed in the two ends of the door shield shell and used for being connected with a door frame through screws, the magnet assembly consists of magnets on the two sides and an interlayer in the middle of the magnet assembly and used for being magnetically attracted to connect the magnetic door catch, the elastic body is a rubber sheet and used for sealing the bottom of the cavity of the door shield shell and playing a buffering role when the.

5. The structure of the child safety type fast-assembling door lock according to claim 1, wherein the front lock body comprises an outer panel shell, a cover plate, a handle, a return shifting piece, a driving gear, a spring and a transmission gear;

the middle of the inner surface of the outer panel shell is provided with a ring sleeve, the middle of the inner surface of the outer panel shell is used for being connected with a handle, the periphery of the outer surface of the outer panel shell is used for being connected with a compression spring, three sections of concentric arc sleeves are arranged outside the ring sleeve and used for positioning the compression spring, a small ring sleeve is arranged beside the arc sleeves and used for being connected with a small cylindrical part of a transmission column, a small circular hole is arranged in the middle of the small ring sleeve and used for being inserted into the small cylinder from the outside to push the transmission column to move when the door needs to be unlocked from the outside so that the circular rectangular part of the transmission column is connected with a circular rectangular hole in the transmission gear to realize transmission, the upper part and the lower part of the outer panel shell are respectively provided with a screw hole which is used for being connected;

the main body of the cover plate is a thin sheet, a through hole is formed in the middle of one side of the cover plate and used for penetrating through the transmission column, and small through holes are formed in four corners of the cover plate and used for being in threaded connection with the blind hole of the outer panel shell through screws;

the middle of the return shifting piece is provided with a round hole which is used for being connected with a cylinder of the handle, and the middle of the round hole is provided with a straight clamping head which is used for being connected with a straight opening of the handle; the bottom of the return shifting piece is provided with two protruding steps for connecting a compression spring;

the middle of the driving gear is provided with a round hole which is used for being connected with a cylinder of a handle, the middle of the round hole is provided with a straight-line-shaped chuck which is used for being connected with a straight-line-shaped opening of the handle, and the excircle or one side of the driving gear is provided with transmission teeth which are used for being in transmission connection with a transmission gear;

the transmission gear is provided with a round-corner rectangular hole in the middle and is used for being connected with the round-corner rectangular part of the transmission column, the round-corner rectangular hole at the rear part of the middle is externally provided with a cylinder and is used for being connected with a small circular ring sleeve of the outer panel shell, and the outer circle or one side of the transmission gear is provided with transmission teeth and is used for being in transmission connection with the driving gear;

the spring is a compressed spring wound by a steel wire and has resilience, is placed between the transmission column and the round-corner rectangular hole of the handle, has the same outer diameter as the transmission column, and is used for extruding the transmission column to ensure that the small column part of the transmission column is separated from the round-corner rectangular hole of the transmission gear;

the round ring cover of outer panel casing is connected with the handle, and small circle ring cover is connected with drive gear's cylinder, the round hole of return plectrum is connected with the cylinder of handle, and "one" word opening of handle is connected to "one" word chuck in the middle of the round hole, the round hole of driving gear is connected with the cylinder of handle, and "one" word opening of handle is connected to "one" word chuck in the middle of the round hole, driving gear connection drive gear, the little through-hole of apron passes through the screw and is connected with the blind hole of outer panel casing, the spring is placed between transmission post and handle fillet rectangular hole.

6. The child-resistant quick-assembling door lock structure as claimed in claim 1, wherein the driving post has rounded rectangular front and rear portions for driving, and a small cylindrical portion at its one end for engaging and disengaging.

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