CN109403718B - Quick-mounting door lock without replacing lock body and mounting method thereof - Google Patents

Abstract

The invention provides the rapid installation door lock without replacing the lock body and the installation method thereof, which are rapid and convenient to install, do not need to replace the original lock body, reduce the installation complexity and reduce the maintenance cost. After the square rod hole of the front bottom plate is aligned with the square hole on the lock body, the screw sleeve component penetrates into the guide groove of the front bottom plate, and then the screw sleeve component penetrates into the mounting hole on the door leaf; after the square rod holes of the rear bottom plate are aligned with the square holes on the lock body, the bottom plate screws penetrate into the guide grooves of the rear bottom plate, then after the bottom plate screws penetrate into the mounting holes on the door leaf, the bottom plate screws are connected with the screw sleeve assembly, and the front bottom plate and the rear bottom plate are fixed on the door leaf; the front decorative plate and the front bottom plate are installed together, and the rear decorative plate and the rear bottom plate are installed together; the square rod of the front handle assembly passes through the square rod hole of the front bottom plate and then passes through the square hole on the lock body, and the front cover plate is installed into the front cover plate hole; mounting a back cover plate of the back handle assembly into the back cover plate hole, and enabling a square rod to pass through the square rod hole, wherein the square rod is linked with the back driving plate; the handle screw is connected with a threaded hole at one end of the square rod.

Description

Quick-mounting door lock without replacing lock body and mounting method thereof

Technical Field

The invention relates to an intelligent door lock, in particular to a quick-mounting door lock without changing a lock body and a mounting method thereof.

Background

The lock of the door comprises a lock body and a door lock. The prior art door lock is shown in the chinese patent application No. 200920148560.6. If the door lock needs to be replaced due to maintenance or upgrading, a user needs to combine the door lock body size to select a proper door lock before purchasing the door lock, the door lock is complex to install, the user cannot install quickly, the door lock needs to be installed by a professional door-on service, and the use cost is increased undoubtedly.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides the rapid installation door lock with reasonable structural design and without replacing the lock body and the installation method thereof, which are rapid and convenient to install, do not need to replace the original lock body, reduce the installation complexity and reduce the maintenance cost.

The invention solves the problems by adopting the following technical scheme: a quick install door lock without replacement of the lock body includes a front handle assembly, a rear handle assembly, a front panel assembly and a rear panel assembly; the front handle assembly comprises a front handle, a front cover plate, a square rod, a clutch shaft and a front cover plate; the front handle is rotatably arranged on the front cover plate; the front cover plate is fixed on the front cover plate; the clutch shaft is rotatably arranged in the front handle; the rear handle assembly comprises a rear handle, a rear cover plate and a rear cover plate; the rear handle is rotatably arranged on the rear cover plate; the back cover plate is fixed on the back cover plate; the front panel assembly includes a front fascia; the rear panel assembly includes a rear fascia; the method is characterized in that: the rear handle assembly further comprises a handle screw; the front handle assembly further comprises a front bearing, the clutch shaft is provided with a front extrusion part, and the front bearing is arranged on the clutch shaft and is positioned between the front extrusion part and the front cover plate; one end of the square rod is arranged on the clutch shaft, and the other end of the square rod is provided with a threaded hole which is matched with the handle screw; the rear handle assembly further comprises a rear bearing, a rear extrusion part is arranged on the rear handle, and the rear bearing is arranged on the rear handle and is positioned between the rear cover plate and the rear extrusion part; the rear handle is provided with a square rod hole which is matched with the square rod; the front panel assembly also comprises a screw sleeve assembly and a front bottom plate; front bottom plate guide grooves are formed in the upper end and the lower end of the front bottom plate, and the screw sleeve assembly is matched with the front bottom plate guide grooves; the front bottom plate is provided with a front bottom plate square rod hole, and the front bottom plate square rod hole is matched with the square rod; the front decorative plate is matched with the front bottom plate, a front cover plate hole is formed in the front decorative plate, and the front cover plate hole is matched with the front cover plate; the rear panel assembly comprises a bottom plate screw and a rear bottom plate; rear bottom plate guide grooves are formed in the upper end and the lower end of the rear bottom plate; the rear bottom plate is provided with a rear bottom plate square rod hole which is matched with the square rod; the bottom plate screw is matched with the rear bottom plate guide groove and the screw sleeve component; the back plaque is provided with the backplate hole on the back plaque and cooperates with the backplate.

The front panel component of the invention also comprises a protective cover; the protective cover is positioned between the front decorative plate and the front bottom plate; the protective cover is welded and fixed on the front bottom plate and shields the front bottom plate guide groove; an accommodating cavity is arranged between the protective cover and the front bottom plate guide groove.

The front bearing and the rear bearing are thrust bearings.

The screw sleeve assembly comprises a square neck screw, a screw sleeve and a sliding sleeve; the sliding sleeve is square and is fixedly sleeved on the square neck of the square neck screw; the sliding sleeve is provided with a boss, the head of the boss protrudes from the surface of the sliding sleeve, and a gap is reserved between the bottom of the boss and the square neck.

The front panel assembly of the invention further comprises a front lock cylinder cover; the front bottom plate is also provided with a front bottom plate lock cylinder hole, the front decorative plate is provided with a front decorative plate lock cylinder hole, and the front lock cylinder cover is matched with the front decorative plate lock cylinder hole and the front bottom plate lock cylinder hole.

The rear panel assembly of the present invention further includes a rear cylinder cover; the rear bottom plate is provided with a rear bottom plate lock cylinder hole, the rear ornamental plate is provided with a rear ornamental plate lock cylinder hole, and the rear lock cylinder cover is matched with the rear ornamental plate lock cylinder hole and the rear bottom plate lock cylinder hole.

The back panel assembly of the invention also comprises a back locking knob assembly; the back lock knob assembly comprises a back lock knob, a knob cutting sleeve and a back lock shifting piece; the knob clamping sleeve is rotatably arranged on the rear bottom plate; the back locking knob is fixed with the knob cutting sleeve; the knob cutting sleeve is provided with a plectrum groove, and the tail part of the anti-lock plectrum is arranged in the anti-lock knob plectrum groove; the tail part of the anti-lock plectrum is provided with a plectrum clamping groove, the knob clamping sleeve is provided with a plectrum buckle, and the plectrum clamping groove is clamped with the plectrum buckle; the number of the plectrum clamping grooves is multiple, and the plectrum clamping grooves are sequentially arranged along the axial direction of the anti-lock plectrum.

The front bottom plate is provided with a front bottom plate positioning hole, the front cover plate is provided with a front cover plate positioning block, and the front cover plate positioning block is matched with the front bottom plate positioning hole; the back plate is provided with a back plate positioning hole, the back plate is provided with a back plate positioning block, and the back plate positioning hole is matched with the back plate positioning block.

The front panel component of the invention also comprises a protective cover; the protective cover is positioned between the front decorative plate and the front bottom plate; the protective cover is welded and fixed on the front bottom plate and shields the front bottom plate guide groove; an accommodating cavity is arranged between the protective cover and the front bottom plate guide groove.

The installation method of the quick installation door lock without replacing the lock body is characterized by comprising the following steps of: the method comprises the following steps:

(1) After aligning the square rod hole of the front bottom plate with the square hole on the lock body, penetrating the screw sleeve component into the guide groove of the front bottom plate, adjusting the position of the screw sleeve component up and down, and penetrating the screw sleeve component into the mounting hole on the door leaf; after aligning the square rod hole of the rear bottom plate with the square hole on the lock body, penetrating a bottom plate screw into the guide groove of the rear bottom plate, adjusting the position of the bottom plate screw up and down, penetrating the bottom plate screw into the mounting hole on the door leaf, connecting the bottom plate screw with the screw sleeve assembly, and fixing the front bottom plate and the rear bottom plate on the door leaf;

(2) Mounting the front decorative plate and the front bottom plate together, and mounting the rear decorative plate and the rear bottom plate together;

(3) The square rod of the front handle assembly passes through the square rod hole of the front bottom plate and then passes through the square hole on the lock body, and the front cover plate is installed into the front cover plate hole; mounting a back cover plate of the back handle assembly into the back cover plate hole, and enabling a square rod to pass through the square rod hole, wherein the square rod is linked with the back driving plate; the handle screw is connected with a threaded hole at one end of the square rod, the square rod and the rear handle are fixed together, at the moment, the handle screw pulls the square rod outwards, and the handle screw presses the rear handle inwards; the pulling force of the square rod is transmitted to the clutch shaft, so that the front extrusion part is pressed on the front bearing, and the front bearing is pressed on the front cover plate, so that the front cover plate is tightly fixed on the front bottom plate; the pressure of the rear handle presses the rear extrusion part on the rear bearing, and the rear bearing presses the rear cover plate, so that the rear cover plate is tightly fixed on the rear bottom plate.

Compared with the prior art, the invention has the following advantages and effects: 1. the installation is swift convenient, need not to change former lock body, reduces the installation complexity, reduces cost of maintenance. 2. The front handle assembly and the rear handle assembly are mounted on the door leaf through the cooperation fixation of the handle screw, the square shaft, the front bearing, the rear bearing and the like, and the square shaft, the front bearing and the rear bearing are preset in the front handle assembly and the rear handle assembly when leaving the factory, and the front panel assembly and the rear panel assembly can be fixed only by mounting the handle screw again when mounting. 3. The specifications of the mounting holes of the locks with different specifications on the door leaf are different, and the guide grooves on the front panel component and the rear panel component are arranged, so that the invention is suitable for the mounting holes with different specifications.

Drawings

Fig. 1 is a schematic view of an exploded structure of an embodiment of the present invention when installed on a door leaf.

Fig. 2 is a schematic side view of an embodiment of the present invention.

Fig. 3 is a schematic perspective view showing a front handle assembly and a rear handle assembly to be mounted on a door leaf according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of an embodiment of the invention when it has been installed on a door leaf.

FIG. 5 is a schematic view of an exploded view of an embodiment of the present invention.

FIG. 6 is a schematic cross-sectional view of an embodiment of the present invention.

Fig. 7 is a schematic view of an exploded construction of a screw sleeve assembly according to an embodiment of the present invention.

Fig. 8 is a schematic view showing the structure of the screw sleeve assembly connected with the guide groove of the front bottom plate according to the embodiment of the present invention.

Fig. 9 is a schematic view of an exploded construction of the front floor, front fascia and protective cover assembly of an embodiment of the invention.

Fig. 10 is a schematic partial structure of fig. 4 according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.

Referring to fig. 1 to 10, the front handle assembly 1, the rear handle assembly 2, the front panel assembly 5 and the rear panel assembly 6 according to the embodiment of the present invention.

The front handle assembly 1 includes a front handle 11, a front cover plate 12, a square bar 13, a square bar screw 14, a clutch shaft 15, a front bearing 16, a front dial 17, a front torsion spring 18, and a front cover plate 19.

The front handle 11 is rotatably mounted on the front cover plate 12, and the front handle 11 and the front cover plate 12 are rotatable relative to each other.

The cowl panel 12 is provided with a cowl panel positioning block 121.

The front dial 17 is mounted on the front handle 11 using a snap spring.

The front torsion spring 18 is disposed between the front plate 12 and the front dial 17, and the front handle 11 and the front plate 12 can be reset by the front torsion spring 18 after rotating relatively.

The front cover plate 19 is fixed to the front cover plate 12 using screws.

The clutch shaft 15 is rotatably installed in the front handle 11 and can rotate 360 degrees. The clutch shaft 15 has a stepped shaft shape, and a front pressing portion 4 is provided thereon. The front bearing 16 is mounted on the clutch shaft 15 using a snap spring and is located between the front press section 4 and the front cover plate 19. The front bearing 16 is a thrust bearing.

One end of a square rod 13 is arranged on a clutch shaft 15 by using a square rod screw 14, and the square rod 13 is linked with the clutch shaft 15; the other end of the square bar 13 is provided with a threaded hole which is matched with a handle screw 28 for connecting the handle screw 28 when the invention is installed on the door leaf 3.

As a conventional technology of the intelligent door lock in the art, a power supply, a clutch and a recognition module are further arranged in the front handle assembly 1, the power supply is connected with the clutch and the recognition module, and the clutch is connected with the recognition module and the clutch shaft 15. Before the recognition module does not recognize the effective information, the clutch is closed, the front handle 11 is not linked with the square rod 13, and the front handle 11 is in a free rotation state. When the recognition module recognizes the effective information, the clutch is opened, the front handle 11 is linked with the square rod 13, the front handle 11 is rotated, and the lock body oblique tongue and the main tongue are opened.

The rear handle assembly 2 includes a rear handle 21, a rear housing plate 22, a rear bearing 23, a rear dial 24, a rear torsion spring 25, a rear cover plate 26 and handle screws 28.

The rear handle 21 is rotatably mounted on the rear cover plate 22, and the rear handle 21 and the rear cover plate 22 are rotatable with respect to each other.

The backplate 22 is provided with a backplate positioning block 221.

The rear dial 24 is mounted on the rear handle 21 using a snap spring.

The rear torsion spring 25 is provided between the rear cover plate 22 and the rear dial 24, and the rear handle 21 and the rear cover plate 22 can be reset by the rear torsion spring 25 after being rotated relative to each other.

The back cover plate 26 is secured to the back cover plate 22 using screws.

The rear grip 21 is provided with a rear pressing portion 27. The rear bearing 23 is mounted on the rear handle 21 and is located between the rear housing plate 22 and the rear pressing portion 27. The rear bearing 23 is a thrust bearing.

The rear handle 21 is provided with a square rod hole which is matched with the square rod 13, the square rod hole is used for penetrating the square rod 13 when the door leaf 3 is installed, then the rear handle 21 and the square rod 13 are always in a linkage state, and the rear handle 21 is rotated to open the inclined tongue and the main tongue.

The front panel assembly 5 includes a sleeve assembly 51, a front floor 52, a front fascia 53, a front cylinder cover 54, and a protective cover 514.

Front floor guide grooves 55 are formed in the upper end and the lower end of the front floor 52, and the front floor guide grooves 55 are arranged vertically. The front bottom plate 52 is provided with a front bottom plate square rod hole 56 and a front bottom plate lock core hole 57, and the front bottom plate square rod hole 56 is matched with the square rod 13. The front chassis 52 is provided with front chassis positioning holes, and the front cover plate positioning block 121 is fitted with the front chassis positioning holes.

The screw sleeve assembly 51 mates with the front floor guide 55.

The screw sleeve assembly 51 includes a lag screw 510, a sliding sleeve 511, and a screw sleeve 512.

The square neck screw and the screw sleeve 512 are fixedly connected in a threaded manner.

The sliding sleeve 511 is square, and is fixedly sleeved on the square neck 5101 of the square neck screw 510. The sliding sleeve 511 is provided with a boss 5111, the head of the boss 5111 protrudes from the surface of the sliding sleeve 511, and a gap is formed between the bottom of the boss 5111 and the square neck 5101. The sliding sleeve 511 is made of rubber or plastic so that the sliding sleeve 511 has a certain elasticity. The number of the bosses 5111 is plural, and the bosses 5111 are arranged along the circumferential direction of the sliding sleeve 511, so that the damping effect of the bosses 5111 is better. In this embodiment, the number of the bosses 5111 is four, and the bosses are respectively disposed on four sides of the sliding sleeve 511, so that the damping effect can be generated on the four sides of the sliding sleeve 511, and thus, the screw sleeve assembly 51 is installed into the front bottom plate guide groove 55 without directional installation.

After the screw sleeve assembly 51 is installed in the front bottom plate guide groove 55, the square neck 5101 moves along the front bottom plate guide groove 55, and as a gap is reserved between the bottom of the boss 5111 and the square neck 5101, the groove wall of the front bottom plate guide groove 55 can inwards squeeze the boss 5111, the sliding sleeve 511 is in surface contact with the front bottom plate guide groove 55 so that the square neck screw 510 can only move but cannot rotate, and sliding friction exists between the boss 5111 and the front bottom plate guide groove 55 to generate damping, so that the square neck screw 510 can stop at any position of the front bottom plate guide groove 55 and cannot fall off, and the screw sleeve assembly is convenient and quick to install.

The front trim 53 is mated with the front floor 52, and the front trim 53 is provided with a front trim lock core hole 58 and a front shroud plate hole 59, and the front shroud plate hole 59 mates with the front shroud plate 12.

The front lock cylinder cover 54 mates with the front fascia lock cylinder aperture 58 and the front floor lock cylinder aperture 57.

The protective cover 514 is located between the front fascia 53 and the front floor 52. The protective cover 514 is welded to the front floor 52 and shields the front floor channel 55. A receiving cavity for receiving the head of the square neck screw 510 is provided between the protective cover 514 and the front floor guide 55.

The protective cover 514 is provided with the locating buckle 5141, the front bottom plate 52 is provided with the locating groove 515, the locating buckle 5141 is connected with the locating groove 515, and the protective cover 514 is located on the front bottom plate 52, so that the welding position of the protective cover 514 is accurate.

The number of the protective covers 514 is two, and the protective covers are arranged up and down and cover the upper front bottom plate guide groove 55 and the lower front bottom plate guide groove 55 of the front bottom plate 52 respectively.

After the screw sleeve assembly 51 is installed in the front bottom plate guide groove 55, the head of the square neck screw 510 is positioned in the accommodating cavity between the protective cover 514 and the front bottom plate guide groove 55, and the protective cover 514 shields the front bottom plate guide groove 55, so that the screw sleeve assembly 51 cannot be damaged from the front.

The rear panel assembly 6 includes a floor screw 61, a rear floor 62, a rear fascia 63, a rear cylinder cover 64, and a back lock knob assembly 69.

Rear floor guide grooves 65 are formed in the upper end and the lower end of the rear floor 62, and the rear floor guide grooves 65 are arranged vertically. The rear floor 62 is provided with rear floor square bar holes and rear floor lock cylinder holes 66 which mate with the square bars 13. The rear chassis 62 is provided with rear chassis positioning holes, which are fitted with the rear cover plate positioning blocks 221.

The floor screw 61 mates with the rear floor channel 65 and the swivel nut assembly 51.

The rear trim 63 mates with the rear floor 62, and the rear trim 63 is provided with a rear trim lock cylinder aperture 67 and a rear housing plate aperture 68, and the rear housing plate aperture 68 mates with the rear housing plate 22.

The rear lock cylinder cover 64 mates with the rear fascia lock cylinder aperture 67 and the rear floor lock cylinder aperture 66.

A back lock knob assembly 69 is rotatably mounted to the rear floor 62. The anti-lock knob assembly 69 includes an anti-lock knob 691, a knob clip 692, and an anti-lock paddle 693.

The knob collar 692 is rotatably mounted to the rear floor 62.

The anti-lock knob 691 is provided with an anti-lock knob clamping groove 6911, the knob clamping sleeve 692 is provided with a knob clamping sleeve buckle 6921, and the anti-lock knob clamping groove 6911 is connected with the knob clamping sleeve buckle 6921 in a clamping way, so that the anti-lock knob 691 and the knob clamping sleeve 692 are fixed.

The knob clip sleeve 692 is provided with a plectrum slot 6923, and the tail of the anti-lock plectrum 693 is mounted in the plectrum slot 6923. The rear part of the anti-lock plectrum 693 is provided with a plectrum clamping groove 6931, a plectrum buckle 6922 is arranged on the knob clamping sleeve 692, and the plectrum clamping groove 6931 is connected with the plectrum buckle 6922 in a clamping way, so that the rear part of the anti-lock plectrum 693 is arranged in the plectrum groove 6923. The plectrum draw-in groove 6931 is a plurality of, sets gradually along the axial of anti-locking plectrum 693, and when plectrum buckle 6922 and plectrum draw-in groove 6931 joint in different positions like this, anti-locking plectrum 693 exposes outside knob cutting ferrule 692 part (i.e. effective length) length is different, realizes that anti-locking plectrum 693 is multistage flexible, under the condition of not changing former lock body, anti-locking plectrum 693 effective length is changeable to reach the different door thickness of adaptation, and anti-locking plectrum 693 need not need use the instrument to cut like prior art just can reach the purpose of adaptation different door thickness like this.

The number of the shifting piece buckles 6922 is two, and the shifting piece buckles are oppositely arranged; the number of the pulling piece clamping grooves 6931 is multiple, two pulling piece clamping grooves 6931 are arranged in a group, the two pulling piece clamping grooves 6931 in the group are respectively connected with the two pulling piece buckles 6922 in a clamping mode. This construction allows the tail of the anti-lock tab 693 to be more securely mounted within the tab slot 6923.

The method for installing the door lock quickly without replacing the lock body comprises the following steps:

1. after aligning the front bottom plate square rod hole 56 with the square hole 41 on the lock body 4 and the front bottom plate lock cylinder hole 57 with the lock cylinder hole on the door leaf 3, penetrating the screw sleeve assembly 51 into the front bottom plate guide groove 55, adjusting the position of the screw sleeve assembly 51 up and down, and penetrating the screw sleeve assembly 51 into the mounting hole on the door leaf 3; after aligning the square rod hole of the rear bottom plate with the square hole 41 on the lock body 4 and the lock core hole 66 of the rear bottom plate with the lock core hole on the door leaf 3, the back locking pulling piece 610 stretches into the back locking hole 42 on the lock body 4, then the bottom plate screw 61 penetrates into the back bottom plate guide groove 65, the position of the bottom plate screw 61 is adjusted up and down, then the bottom plate screw 61 penetrates into the mounting hole on the door leaf 3, and then the bottom plate screw 61 is connected with the screw sleeve 512 of the screw sleeve assembly 51, so that the front bottom plate 52 and the rear bottom plate 62 are fixed on the door leaf 3.

2. The front lock core cover 54 is clamped into the front decorative plate lock core hole 58, then the front decorative plate 53 and the front bottom plate 52 are installed together, the front decorative plate 53 clamps and fixes the front lock core cover 54, and the front lock core cover 54 covers the front bottom plate lock core hole 57; the rear lock core cover 64 is clamped into the rear plaque lock core hole 67, then the rear plaque 63 and the rear bottom plate 62 are mounted together, the rear plaque 63 clamps and fixes the rear lock core cover 64, and the rear lock core cover 64 covers the rear bottom plate lock core hole 66.

3. After passing through the square rod hole 56 of the front bottom plate, the square rod 13 of the front handle assembly 1 passes through the square hole 41 on the lock body 4 and is linked with each other, the front cover plate 12 is arranged in the front cover plate hole 59, and the front cover plate positioning block 121 and the front bottom plate positioning hole are connected to play a positioning role; mounting the back plate 22 of the back handle assembly 2 into the back plate hole 68, connecting the back plate positioning hole with the back plate positioning block 221 for positioning, and passing the square rod 13 through the square rod hole, wherein the square rod 13 is linked with the back driving plate 24; the handle screw 28 is connected with a threaded hole at one end of the square rod 13 to fix the square rod 13 and the rear handle 21 together, at this time, the handle screw 28 pulls the square rod 13 outwards, and the handle screw 28 presses the rear handle 21 inwards; the pulling force of the square rod 13 is transmitted to the clutch shaft 15, so that the front extrusion part 4 is pressed on the front bearing 16, and the front bearing 16 is pressed on the front cover plate 19, so that the front cover plate 19 is tightly fixed on the front bottom plate 52; the pressure of the rear handle 21 presses the rear pressing portion 27 against the rear bearing 23, and the rear bearing 23 presses against the rear cover plate 22, so that the rear cover plate 22 is tightly fixed to the rear base plate 62; through the above structure, the front handle assembly 1 and the rear handle assembly 2 are firmly installed on the door leaf 3, and the front bearing 16 and the rear bearing 23 not only play a role in transmitting pressure, but also enable the clutch shaft 15 and the rear handle 21 to normally rotate under the condition of receiving axial force.

4. In the above process, if the door lock still requires a key, the front cylinder cover 54 and the rear cylinder cover 64 are not installed, and the cylinder hole on the door leaf 3 is exposed.

In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present invention. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.

Claims (9)

1. A quick install door lock without replacement of the lock body includes a front handle assembly, a rear handle assembly, a front panel assembly and a rear panel assembly; the front handle assembly comprises a front handle, a front cover plate, a square rod, a clutch shaft and a front cover plate; the front handle is rotatably arranged on the front cover plate; the front cover plate is fixed on the front cover plate; the clutch shaft is rotatably arranged in the front handle; the rear handle assembly comprises a rear handle, a rear cover plate and a rear cover plate; the rear handle is rotatably arranged on the rear cover plate; the back cover plate is fixed on the back cover plate; the front panel assembly includes a front fascia; the rear panel assembly includes a rear fascia; the method is characterized in that: the rear handle assembly further comprises a handle screw; the front handle assembly further comprises a front bearing, the clutch shaft is provided with a front extrusion part, and the front bearing is arranged on the clutch shaft and is positioned between the front extrusion part and the front cover plate; one end of the square rod is arranged on the clutch shaft, and the other end of the square rod is provided with a threaded hole which is matched with the handle screw; the rear handle assembly further comprises a rear bearing, a rear extrusion part is arranged on the rear handle, and the rear bearing is arranged on the rear handle and is positioned between the rear cover plate and the rear extrusion part; the rear handle is provided with a square rod hole which is matched with the square rod; the front panel assembly also comprises a screw sleeve assembly and a front bottom plate; front bottom plate guide grooves are formed in the upper end and the lower end of the front bottom plate, and the screw sleeve assembly is matched with the front bottom plate guide grooves; the front bottom plate is provided with a front bottom plate square rod hole, and the front bottom plate square rod hole is matched with the square rod; the front decorative plate is matched with the front bottom plate, a front cover plate hole is formed in the front decorative plate, and the front cover plate hole is matched with the front cover plate; the rear panel assembly comprises a bottom plate screw and a rear bottom plate; rear bottom plate guide grooves are formed in the upper end and the lower end of the rear bottom plate; the rear bottom plate is provided with a rear bottom plate square rod hole which is matched with the square rod; the bottom plate screw is matched with the rear bottom plate guide groove and the screw sleeve component; the rear decorative plate is matched with the rear bottom plate, a rear cover plate hole is formed in the rear decorative plate, and the rear cover plate hole is matched with the rear cover plate; the back panel assembly also comprises a back locking knob assembly; the back lock knob assembly comprises a back lock knob, a knob cutting sleeve and a back lock shifting piece; the knob clamping sleeve is rotatably arranged on the rear bottom plate; the back locking knob is fixed with the knob cutting sleeve; the knob cutting sleeve is provided with a plectrum groove, and the tail part of the anti-lock plectrum is arranged in the anti-lock knob plectrum groove; the tail part of the anti-lock plectrum is provided with a plectrum clamping groove, the knob clamping sleeve is provided with a plectrum buckle, and the plectrum clamping groove is clamped with the plectrum buckle; the number of the plectrum clamping grooves is multiple, and the plectrum clamping grooves are sequentially arranged along the axial direction of the anti-lock plectrum.

2. The quick install door lock without replacement of the lock body as claimed in claim 1, wherein: the front panel assembly also comprises a protective cover; the protective cover is positioned between the front decorative plate and the front bottom plate; the protective cover is welded and fixed on the front bottom plate and shields the front bottom plate guide groove; an accommodating cavity is arranged between the protective cover and the front bottom plate guide groove.

3. The quick install door lock without replacement of the lock body as claimed in claim 1, wherein: the front bearing and the rear bearing are thrust bearings.

4. The quick install door lock without replacement of the lock body as claimed in claim 1, wherein: the screw sleeve assembly comprises a square neck screw, a screw sleeve and a sliding sleeve; the sliding sleeve is square and is fixedly sleeved on the square neck of the square neck screw; the sliding sleeve is provided with a boss, the head of the boss protrudes from the surface of the sliding sleeve, and a gap is reserved between the bottom of the boss and the square neck.

5. The quick install door lock without replacement of the lock body as claimed in claim 1, wherein: the front panel assembly also comprises a front lock cylinder cover; the front bottom plate is also provided with a front bottom plate lock cylinder hole, the front decorative plate is provided with a front decorative plate lock cylinder hole, and the front lock cylinder cover is matched with the front decorative plate lock cylinder hole and the front bottom plate lock cylinder hole.

6. The quick install door lock without replacement of the lock body as claimed in claim 1, wherein: the rear panel assembly further comprises a rear lock cylinder cover; the rear bottom plate is provided with a rear bottom plate lock cylinder hole, the rear ornamental plate is provided with a rear ornamental plate lock cylinder hole, and the rear lock cylinder cover is matched with the rear ornamental plate lock cylinder hole and the rear bottom plate lock cylinder hole.

7. The quick install door lock without replacement of the lock body as claimed in claim 1, wherein: the front bottom plate is provided with a front bottom plate positioning hole, the front cover plate is provided with a front cover plate positioning block, and the front cover plate positioning block is matched with the front bottom plate positioning hole; the back plate is provided with a back plate positioning hole, the back plate is provided with a back plate positioning block, and the back plate positioning hole is matched with the back plate positioning block.

8. The quick install door lock without replacement of the lock body as claimed in claim 1, wherein: the front panel assembly also comprises a protective cover; the protective cover is positioned between the front decorative plate and the front bottom plate; the protective cover is welded and fixed on the front bottom plate and shields the front bottom plate guide groove; an accommodating cavity is arranged between the protective cover and the front bottom plate guide groove.

9. A method of installing a quick install door lock without replacement of the lock body as claimed in any one of claims 1 to 8, wherein:

(1) After aligning the square rod hole of the front bottom plate with the square hole on the lock body, penetrating the screw sleeve component into the guide groove of the front bottom plate, adjusting the position of the screw sleeve component up and down, and penetrating the screw sleeve component into the mounting hole on the door leaf; after aligning the square rod hole of the rear bottom plate with the square hole on the lock body, penetrating a bottom plate screw into the guide groove of the rear bottom plate, adjusting the position of the bottom plate screw up and down, penetrating the bottom plate screw into the mounting hole on the door leaf, connecting the bottom plate screw with the screw sleeve assembly, and fixing the front bottom plate and the rear bottom plate on the door leaf;

(2) Mounting the front decorative plate and the front bottom plate together, and mounting the rear decorative plate and the rear bottom plate together;

(3) The square rod of the front handle assembly passes through the square rod hole of the front bottom plate and then passes through the square hole on the lock body, and the front cover plate is installed into the front cover plate hole; mounting a back cover plate of the back handle assembly into the back cover plate hole, and enabling a square rod to pass through the square rod hole, wherein the square rod is linked with the back driving plate; the handle screw is connected with a threaded hole at one end of the square rod, the square rod and the rear handle are fixed together, at the moment, the handle screw pulls the square rod outwards, and the handle screw presses the rear handle inwards; the pulling force of the square rod is transmitted to the clutch shaft, so that the front extrusion part is pressed on the front bearing, and the front bearing is pressed on the front cover plate, so that the front cover plate is tightly fixed on the front bottom plate; the pressure of the rear handle presses the rear extrusion part on the rear bearing, and the rear bearing presses the rear cover plate, so that the rear cover plate is tightly fixed on the rear bottom plate.