CN105133926B - Anti-theft structure for door lock handle - Google Patents

Anti-theft structure for door lock handle Download PDF

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Publication number
CN105133926B
CN105133926B CN201510539200.9A CN201510539200A CN105133926B CN 105133926 B CN105133926 B CN 105133926B CN 201510539200 A CN201510539200 A CN 201510539200A CN 105133926 B CN105133926 B CN 105133926B
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China
Prior art keywords
clutch
handle
button
accommodating cavity
transmission rod
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CN201510539200.9A
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CN105133926A (en
Inventor
魏治锦
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Guangdong Mingmen Locks Industry Co Ltd
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Guangdong Mingmen Locks Industry Co Ltd
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Priority to CN201510539200.9A priority Critical patent/CN105133926B/en
Publication of CN105133926A publication Critical patent/CN105133926A/en
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Publication of CN105133926B publication Critical patent/CN105133926B/en
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Abstract

The invention relates to a structure of a theft-proof door lock, and provides a door lock handle theft-proof structure which can ensure quick unlocking and enhance a theft-proof function. The technical scheme is that the novel clutch comprises a button, a button reset spring, a handle body, a button riveting piece, a clutch buffer spring, a clutch, a reversing screw, a handle head, a positioning block, a transmission rod reset spring, a clutch reset spring and a transmission rod; the handle body is provided with a button accommodating cavity, a clutch accommodating cavity and a handle head accommodating cavity, the button is arranged in the button accommodating cavity, the clutch is arranged in the clutch accommodating cavity, the handle head is arranged in the handle head accommodating cavity, and the transmission rod penetrates through the handle head hole; the clutch reset spring separates the clutch from the transmission rod, so that the handle body idles to realize the anti-theft function, the button is pressed to clamp the clutch with the transmission rod, and meanwhile, the transmission rod can synchronously rotate with the handle body to realize door opening, so that the door opening device is simple, convenient and easy to use, and has reliable anti-theft performance.

Description

Anti-theft structure for door lock handle
Technical Field
The invention relates to a structure of a theft-proof door lock, in particular to a handle theft-proof structure of a door lock.
Technical Field
The most commonly used mechanical anti-theft door lock at present can be opened only by rotating a key to retract the dead bolt after the dead bolt (anti-theft lock tongue) is brought out by using the key outside the door, so that people in the door can not be opened rapidly under emergency situations. In order to ensure quick opening and safe escape under emergency conditions, an electronic anti-theft lock is basically adopted on a household anti-theft door, in particular to an electronic anti-theft lock, and the anti-theft lock can realize quick locking and quick opening. The quick lock is that the resident lifts the outer handle upwards outside the door after going out of the door, so that the dead bolt of the lock body extends out of the lock, and the lock is locked without rotating the key clockwise as the common lock; meanwhile, the handle in the door can be lifted and locked. The quick opening is that a user presses down the handle in the door, so that the inclined tongue, the dead tongue and the safety tongue can be retracted (opened) simultaneously, the anti-theft door is opened quickly, the function of safe escape is realized, and the lock body with the function is locked in the door without a lock core. However, the characteristic that the rear handle of the anti-theft door lock can be pressed down to directly open the door has a huge potential safety hazard. In the prior art, a door opening means is used for theft, namely a cat eye on the door is poked inwards firstly, then a bendable connecting rod is extended from the cat eye, and the door can be opened after the cat eye is propped against an inner handle and then is pressed down; if no cat eye exists on the door, the connecting rod can also extend into the door gap below the door, and the door can be opened by pulling down after the inner handle is taken.
In order to solve the above-mentioned potential safety hazard, some electronic anti-theft door locks on the market at present use the circuit to solve this problem, the common practice is: an electronic key is arranged on the rear panel of the lock, after the key is pressed, a control circuit in the lock body drives the clutch to act so as to enable the handle to be meshed with the square core, and the handle is rotated again to unlock, otherwise, the clutch cannot act, and the handle idles. This approach has two disadvantages: firstly, the use is inconvenient, the user needs to do two actions when opening the door, and firstly, the user presses a key and then rotates a handle, which is more troublesome than the traditional door opening mode; secondly, there is a greater potential safety hazard, the door is opened from the room and the clutch is controlled to act by a circuit, and once a fire disaster occurs or other reasons cause circuit faults, people cannot open the door from the room, serious safety accidents are easily caused, and the door is a quite serious design defect.
Disclosure of Invention
The invention aims to improve the important defects in the prior art and provides a door lock handle anti-theft structure which can ensure quick opening and enhance anti-theft function.
The invention adopts the technical scheme that the novel clutch is provided with a button reset spring, a button, a handle body, a button riveting piece, a clutch buffer spring, a clutch, a reversing screw, a handle head, a positioning block, a transmission rod reset spring, a clutch reset spring and a transmission rod; the button is provided with an inner cavity, a cylindrical table and a prismatic rod are arranged in the middle of the inner cavity, a riveting table is arranged at the front end of the prismatic rod, and a rotating groove is formed in the outer end face of the button; the front part of the handle body penetrates through, one end of the handle body is provided with a button accommodating cavity and a button guiding diamond hole, and the other end of the handle body is provided with a clutch accommodating cavity, a fixed spring accommodating cavity and a handle head accommodating cavity; four clutch guide grooves which are uniformly distributed are arranged on the inner side of the clutch accommodating cavity; a shifting arm limiting table, a shifting arm accommodating cavity right and a shifting arm accommodating cavity left are arranged in the fixed spring accommodating cavity; an inner lug notch, an inner lug and a limit notch are arranged on the inner side of the handle head accommodating cavity; four guide convex arms are arranged on the outer side of the clutch in a protruding mode, four clutch bosses are arranged on one end face of the clutch in a protruding mode, and a reset spring accommodating cavity is arranged in the center of the clutch; the center of the handle head is provided with a transmission rod through hole in a penetrating way, one end of the handle head is provided with a convex hanging lug, a convex notch and a convex lug groove, the other end of the handle head is provided with a universal handle mounting groove and a universal plectrum mounting groove, and the middle part of the handle head is provided with a positioning screw hole and a positioning groove; a limiting boss is convexly arranged on the positioning block; one end of the transmission rod is provided with a transmission shifting arm, a clutch groove, a spring containing cavity and a limiting ring, the middle part of the transmission rod is provided with a limiting groove, and the other end of the transmission rod is provided with a square core. The matching relation of the parts is as follows: the button is arranged in the button accommodating cavity of the handle body, the reset spring is arranged in the inner cavity of the button, the button riveting piece is arranged at the end part of the clutch accommodating cavity, the diamond rod penetrates through the button guide diamond hole and the button riveting piece, and the button riveting piece is riveted on the riveting table through the riveting process; the clutch buffer spring and the clutch are arranged in the clutch accommodating cavity, the clutch buffer spring is propped between the button riveting sheet and the clutch, and the guide convex arm is sleeved in the clutch guide groove; one end of the clutch reset spring is arranged in the reset spring accommodating cavity, and the other end of the clutch reset spring is inserted into the spring accommodating cavity at the end part of the transmission rod; the transmission rod reset spring is folded into a round shape and is placed into the fixed spring accommodating cavity, the transmission shifting arm of the transmission rod is inserted into the left shifting arm accommodating cavity (or the right shifting arm accommodating cavity), and two ends of the transmission rod reset spring are respectively propped against between the transmission shifting arm and the shifting arm limiting table; the handle head is sleeved on the transmission rod through hole, the lug notch penetrates through the inner lug until the inner lug reaches the lug groove, the convex hanging lug is inserted into the handle head accommodating cavity, then the handle head is rotated until the lug notch is aligned with the inner lug notch, the positioning block is inserted into the positioning groove and the inner lug notch from the side surface, and the limiting lug is clamped into the limiting notch; the reversing screw is screwed in the positioning screw hole, and the front end of the reversing screw is clamped in the limit groove on the transmission rod.
When the handle body is in a free state, the clutch boss of the clutch can be separated from the clutch groove of the transmission rod along the clutch guide groove under the action of the clutch reset spring, so that the clutch is separated from the transmission rod, at the moment, the handle body is rotated clockwise (pressed down), the clutch rotating along with the handle body cannot drive the transmission rod to rotate, and because the door opening moment of the lock body is larger than the moment of the transmission rod reset spring, the spring force of the transmission rod reset spring compressed by the shifting arm limiting table in the handle body cannot drive the transmission shifting arm to rotate, so that the handle body is pressed down to idle and cannot open the door; when the button is pressed down, the clutch buffer spring is pressed and transmitted to the clutch, and overcomes the elasticity of the clutch reset spring to enable the clutch to move towards the transmission rod end along the clutch guide groove, and the clutch buffer spring moves until the clutch boss is inserted into the clutch groove, so that the clamping of the transmission rod and the handle body is realized, at the moment, the handle body is pressed down, and the transmission rod synchronously rotates to realize door opening. When the button is released, the free state is restored.
When the handle body rotates anticlockwise (lifts up), the shifting arm limiting table can drive the transmission shifting arm to rotate, namely, the handle body is lifted up to drive the transmission rod to rotate, and the technical effect that the handle is lifted up on the common anti-theft lock body, namely, the door is locked is achieved. When the handle body returns to the initial position, the transmission shifting arm synchronously returns to the initial position due to the action of the reset elastic force of the reset spring of the transmission rod.
When the handle body is pressed down or lifted up to cause the clutch boss to be not aligned with the clutch groove, and then the button is pressed down, the clutch buffer spring is stressed and transmitted to the clutch, so that the clutch boss is flatly attached to the transmission rod, and when the clutch is blocked and can not move any more, the clutch buffer spring is stressed and compressed, so that buffer is realized; when the handle body is restored to the initial state, namely, the clutch boss is aligned with the clutch groove, the clutch overcomes the compression force of the clutch reset spring to enable the clutch to move along the clutch guide groove to the transmission rod until the clutch boss is inserted into the clutch groove, so that the clamping of the transmission rod and the handle body is realized, the handle body is pressed under the state that the button is kept to be pressed, and the transmission rod synchronously rotates to realize door opening.
The handle body transmission piece can be quickly changed, so that the handle body is not separated in the left-right direction when the door opening and locking functions are realized, and the door opening device can be suitable for all door opening occasions. The concrete explanation is as follows: the transmission shifting arm can be placed in the left shifting arm accommodating cavity or the right shifting arm accommodating cavity, when the shifting arm accommodating cavity is placed in the left shifting arm accommodating cavity, the handle body rotates clockwise, and the door opening moment of the lock body is larger than the moment of the transmission rod reset spring normally, so that the transmission shifting arm cannot rotate under external force, but the transmission rod reset spring is compressed, namely the handle body is pressed down to idle and cannot open the door; when the handle body is lifted upwards, the handle body rotates anticlockwise, the shifting arm limiting table can drive the transmission shifting arm to rotate, and the handle driving rod is lifted upwards to rotate, so that the technical effect that the handle is lifted on the common anti-theft lock body, namely the door is locked is achieved. The handle is provided with a left door and a right door, and when the door is required to be changed to the right direction, the transmission shifting arm is placed in the right cavity of the shifting arm in the same way. When the reversing screw is switched and placed, the reversing screw is loosened, the transmission rod is pulled out to the end part of the limiting ring to the end part of the convex hanging lug, the inserting position can be switched in a rotating mode, and after the position is determined, the reversing screw is pressed in and locked.
The free state idle running function of the handle body can be rapidly switched into a traditional mode that the handle body can be pressed down to open the door, when the button is pressed down to the bottommost part, the cylindrical table is sleeved on the button guide diamond hole, and the button can be locked and not reset through rotating the rotating groove by a certain angle.
The handle body adopts standard assembly size with the rear panel connector, is furnished with general handle mounting groove, general plectrum mounting groove on the handle, can replace traditional handle fast.
In summary, through the scheme, when the handle body is rotated to open the door when the button is pressed, the hand can hold the handle body and press the button with the thumb, so that the door opening action is finished at one time; the handle body is lifted and locked without pressing a button, so that the handle is simple, convenient and quick. After the door is opened, the button automatically pops up, so that the anti-theft performance of the door lock is effectively enhanced; the handle body transmission piece can be quickly changed, so that the handle body is not separated in the left-right direction when the door opening and locking functions are realized, and the door opening device can be suitable for all door opening occasions and has strong adaptability; the button can be locked or unlocked according to the user requirement, so that the usability of the door lock is enhanced.
Drawings
FIG. 1 is a perspective view of the invention in an exploded state;
FIG. 2 is a schematic view of the structure of the button according to the present invention (FIG. 2A is a front view, FIG. 2B is a schematic view of section A-A in FIG. 2A, and FIG. 2C is a left side view);
FIG. 3 is a perspective view of a handle body according to the present invention;
FIG. 4 is a schematic perspective view of a clutch of the present invention;
FIG. 5 is a schematic perspective view of a handle head according to the present invention;
FIG. 6 is a schematic perspective view of a drive rod according to the present invention;
fig. 7 is a schematic plan view of the assembled device according to the present invention (wherein fig. 7A is a schematic front view, fig. 7B is a schematic cross-sectional view of fig. 7A, fig. 7C is a schematic cross-sectional view of fig. 7B, and fig. 7D is a schematic cross-sectional view of fig. 7B and C).
The reference numerals in the figures are:
1-a button return spring;
2-buttons, 21-inner cavities, 22-cylinder platforms, 23-prismatic rods, 24-riveting platforms and 25-rotating grooves;
the novel handle comprises a 3-handle body, a 31-button accommodating cavity, a 32-button guiding diamond-shaped hole, a 33-clutch accommodating cavity, a 331-clutch guiding groove, a 34-fixed spring accommodating cavity, a 341-shifting arm limiting table, a 342-shifting arm accommodating cavity right, a 343-shifting arm accommodating cavity left, a 35-handle head accommodating cavity, a 351-inner lug notch, a 352-inner lug and a 353-limiting notch;
4-button riveting sheets;
5-a clutch buffer spring;
6-clutch, 61-guiding convex arm, 62-clutch boss, 63-reset spring cavity;
7-reversing screws;
8-handle heads, 81-convex lugs, 82-lug notches, 83-transmission rod through holes, 84-lug grooves, 85-positioning screw holes, 86-general handle mounting grooves, 87-general plectrum mounting grooves and 88-positioning grooves;
9-positioning blocks and 91-limiting bosses;
10-transmission rod reset spring
11-a clutch return spring;
12-transmission rods, 121-transmission shifting arms, 122-clutch grooves, 123-spring containing cavities, 124-limiting rings, 125-limiting grooves and 126-square cores.
Detailed Description
The invention can be implemented by the following modes:
as shown in fig. 1, the invention is provided with a button return spring 1, a button 2, a handle body 3, a button riveting piece 4, a clutch buffer spring 5, a clutch 6, a reversing screw 7, a handle head 8, a positioning block 9, a transmission rod return spring 10, a clutch return spring 11 and a transmission rod 12. The positioning block 9 is provided with a limiting boss 91 in a protruding mode.
As shown in fig. 2, the button 2 is provided with an inner cavity 21, a cylindrical stand 22 and a prismatic rod 23 are provided in the middle of the inner cavity 21, a caulking stand 24 is provided at the front end of the prismatic rod 23, and a rotation groove 25 is provided at the other end of the button 2.
As shown in fig. 3, the front part of the handle body 3 is penetrated, a button accommodating cavity 31 and a button guiding diamond-shaped hole 32 are sequentially arranged, and the other end is provided with a clutch accommodating cavity 33, a fixed spring accommodating cavity 34 and a handle head accommodating cavity 35; four clutch guide grooves 331 which are uniformly distributed are arranged on the inner side of the clutch accommodating cavity 33; a shifting arm limiting table 341, a shifting arm accommodating cavity right 342 and a shifting arm accommodating cavity left 343 are arranged on the inner side of the fixed spring accommodating cavity 34; an inner lug notch 351, an inner lug 352 and a limit notch 353 are arranged on the inner side of the handle head accommodating cavity 35.
As shown in fig. 4, four guiding convex arms 61 are arranged on the outer side of the clutch 6 in a protruding way, four clutch bosses 62 are arranged on one end face in a protruding way, and a reset spring containing cavity 63 is arranged in the center.
As shown in fig. 5, the center of the handle head 8 is provided with a transmission rod through hole 83, one end is provided with a convex hanging lug 81, a convex notch 82 and a convex lug groove 84, the other end is provided with a universal handle mounting groove 86 and a universal plectrum mounting groove 87, and the middle part is provided with a positioning screw hole 85 and a positioning groove 88.
As shown in fig. 6, one end of the transmission rod 12 is provided with a transmission shifting arm 121, a clutch groove 122, a spring accommodating cavity 123 and a limiting ring 124, the middle part is provided with a limiting groove 125, and the other end is provided with a square core 126.
As shown in fig. 1 to 7, the matching relationship of the components of the present invention is: the button 2 is arranged in a button accommodating cavity 33 of the handle body 3, the button reset spring 1 is arranged in an inner cavity 21 of the button 2, the button riveting piece 4 is arranged at the end part of the clutch accommodating cavity 33, the diamond-shaped rod 13 penetrates through the button guide diamond-shaped hole 32 and the button riveting piece 4, and the button riveting piece 4 is riveted on the riveting table 24 through a riveting process; the clutch buffer spring 5 and the clutch 6 are arranged in the clutch accommodating cavity 33, the clutch buffer spring 5 is propped between the button riveting piece 4 and the clutch 6, and the guide convex arm 61 is sleeved in the clutch guide groove 331; one end of the clutch reset spring 11 is arranged in the reset spring accommodating cavity 63, and the other end of the clutch reset spring is inserted into the spring accommodating cavity 123 at the end part of the transmission rod 12; the transmission rod reset spring 10 is folded into a round shape and is placed into the fixed spring accommodating cavity 34, the transmission shifting arm 121 of the transmission rod 12 is inserted into the shifting arm accommodating cavity left 343 (or the shifting arm accommodating cavity right 342), and two ends of the transmission rod reset spring 10 are respectively propped against between the transmission shifting arm 121 and the shifting arm limiting table 341; the handle head 8 is sleeved on the transmission rod 12 through the transmission rod through hole 83, the lug notch 82 penetrates through the inner lug 352 until the inner lug 352 reaches the lug groove 84 and the convex hanging lug 81 is inserted into the handle head accommodating cavity 35, then the handle head is rotated until the lug notch 82 is aligned with the inner lug notch 351, the positioning block 9 is inserted into the positioning groove 88 and the inner lug notch 351 from the side, and the limiting boss 91 is clamped into the limiting notch 353; the reversing screw 7 is screwed in the positioning screw hole 85, and the front end of the reversing screw 7 is clamped in the limit groove 125 on the transmission rod 12.
As shown in fig. 1 to 7, when the handle body 3 is in a free state, the clutch boss 62 of the clutch 6 is separated from the clutch groove 122 of the transmission rod 12 along the clutch guide groove 331 under the action of the clutch return spring 11, that is, the clutch 6 is separated from the transmission rod 12, at this time, the handle body 3 is rotated clockwise (pressed down), the clutch 6 rotating along with the handle body 3 cannot drive the transmission rod 12 to rotate, because the opening moment of the lock body is larger than the moment of the transmission rod return spring 10, the spring force of the transmission rod return spring 10 cannot be driven to rotate by the toggle arm limiting table 341 in the handle body 3, so that the handle body 3 is only pressed down to idle, and the door cannot be opened; when the button 2 is pressed down, the clutch buffer spring 2 is pressed and transferred to the clutch 6, and overcomes the elasticity of the clutch return spring 11 to enable the clutch 6 to move towards the end of the transmission rod 12 along the clutch guide groove 331, and the clutch buffer spring moves until the clutch boss 62 is inserted into the clutch groove 122, so that the engagement between the transmission rod 12 and the handle body 3 is realized, and when the handle body 3 is pressed down, the transmission rod 12 synchronously rotates to realize door opening. When the button 2 is released, it returns to the free state.
When the handle body 3 rotates anticlockwise (lifts), the shifting arm limiting table 341 can drive the transmission shifting arm 121 to rotate, namely, the lifting of the handle body 3 to drive the transmission rod 12 to rotate is realized, and the technical effect that the handle is lifted on the common anti-theft lock body, namely, the door is locked is achieved. When the handle body 3 returns to the initial position, the transmission shifting arm 121 also synchronously returns to the initial position under the action of the reset elastic force of the transmission rod reset spring 10.
When the clutch boss 62 is not aligned with the clutch groove 122 after the handle body 3 is pressed down or lifted up, and then the button 2 is pressed, the clutch buffer spring 5 is stressed and transferred to the clutch 6, so that the clutch boss 62 is flatly attached to the transmission rod 12, and when the clutch 6 is blocked and can not move any more, the clutch buffer spring 5 is stressed and compressed, so that buffer is realized; at this time, when the handle body 3 is restored to the initial state, that is, the clutch boss 62 is aligned with the clutch groove 122, the clutch 6 overcomes the compression force of the clutch return spring 11, so that the clutch 6 moves along the clutch guide groove 331 toward the transmission rod 12 until the clutch boss 62 is inserted into the clutch groove 122, and the engagement between the transmission rod 12 and the handle body 3 is realized, and when the handle body 3 is pressed in the state that the button 2 is kept to be pressed, the transmission rod 12 synchronously rotates to realize door opening.
The transmission piece of the handle body 3 can be rapidly reversed, so that the handle body 3 is not separated in the left-right direction when the door opening and locking functions are realized, and the door opening device can be suitable for all door opening occasions. The concrete explanation is as follows: the transmission shifting arm 121 can be placed in the shifting arm accommodating cavity left 343 or the shifting arm accommodating cavity right 342, when the shifting arm accommodating cavity left 343 is placed, the handle body 3 rotates clockwise, and the door opening moment of the lock body is larger than the moment of the transmission rod reset spring 10 normally, so that the transmission shifting arm 121 cannot rotate under external force, but the transmission rod reset spring 10 is compressed, namely the handle body 3 is pressed down to idle and cannot open the door; when the handle body 3 is lifted upwards, namely the handle body 3 rotates anticlockwise, the shifting arm limiting table 341 can drive the transmission shifting arm 121 to rotate, namely the handle lifting transmission rod 12 is realized to rotate, and the technical effect that the handle is lifted on the common anti-theft lock body, namely the door is locked is achieved. The handle has a left-right door opening part, and when the handle is required to be changed into a right direction, the transmission shifting arm 121 is placed in the shifting arm accommodating cavity right 342 in the same way. When the reversing screw 7 is switched, the reversing screw 7 is loosened, the transmission rod 12 is pulled out to the end part of the limiting ring 124 to the end part of the convex hanging lug 81, the inserting position can be switched in a rotating mode, and after the position is determined, the reversing screw 7 is pressed in and locked.
The free state idle running function of the handle body 3 can be rapidly switched into a traditional mode that the handle body 3 can be pressed down to open the door, when the button 2 is pressed down to the bottommost part, the cylindrical table 22 is sleeved on the button guide diamond hole 32, and the button 2 can be locked and not reset through rotating the rotating groove 25 by a certain angle.
The handle body 3 adopts standard assembly size with the rear panel connector, is furnished with general handle mounting groove 86, general plectrum mounting groove 87 on handle head 8, can replace traditional handle fast.
In summary, through the scheme, when the handle body 3 is rotated to open the door when the button 2 is pressed, the hand can hold the handle body 3 and press the button 2 with the thumb, so that the door opening action is finished at one time; the handle body 3 is lifted and locked without pressing the button 2, so that the handle is simple, convenient and quick. After the door is opened, the button 2 automatically pops up, so that the anti-theft performance of the door lock is effectively enhanced; the transmission piece of the handle body 3 can be rapidly reversed, so that the handle body 3 is not separated in the left-right direction when the door opening and locking functions are realized, and the door opening device can be suitable for all door opening occasions and has strong adaptability; the button 2 can be locked or unlocked according to the user's requirement, so that the usability of the door lock is enhanced.

Claims (5)

1. The utility model provides a door lock handle theftproof structure, is equipped with a button reset spring, a button, a handle body, a button rivet piece, a separation and reunion buffering spring, a clutch, a reversing screw, a handle head, a locating piece, a transfer line reset spring, a separation and reunion reset spring and a transfer line, characterized by: the front part of the handle body penetrates through, one end of the handle body is provided with a button accommodating cavity and a button guiding diamond hole, and the other end of the handle body is provided with a clutch accommodating cavity, a fixed spring accommodating cavity and a handle head accommodating cavity; four clutch guide grooves which are uniformly distributed are arranged on the inner side of the clutch accommodating cavity; a shifting arm limiting table, a shifting arm accommodating cavity right and a shifting arm accommodating cavity left are arranged in the fixed spring accommodating cavity; an inner lug notch, an inner lug and a limit notch are arranged on the inner side of the handle head accommodating cavity; four guide convex arms are arranged on the outer side of the clutch in a protruding mode, four clutch bosses are arranged on one end face of the clutch in a protruding mode, and a reset spring accommodating cavity is arranged in the center of the clutch; the center of the handle head is provided with a transmission rod through hole in a penetrating way, and one end of the handle head is provided with a convex hanging lug, a convex notch and a convex lug groove; one end of the transmission rod is provided with a transmission shifting arm, a clutch groove, a spring containing cavity and a limiting ring, the middle part of the transmission rod is provided with a limiting groove, and the other end of the transmission rod is provided with a square core; the button is arranged in the button accommodating cavity of the handle body, the button riveting piece, the clutch buffer spring and the clutch are arranged in the clutch accommodating cavity of the handle body, and the clutch buffer spring is propped between the button riveting piece and the clutch; the button is provided with an inner cavity, a cylindrical table and a prismatic rod are arranged in the middle of the inner cavity, a riveting table is arranged at the front end of the prismatic rod, and a rotating groove is formed in the outer end face of the button; the button reset spring is placed in the inner cavity of the button, the button riveting piece is placed at the end part of the clutch cavity, the prismatic rod penetrates through the button guide diamond-shaped hole and the button riveting piece, and the button riveting piece is riveted on the riveting table; the guide convex arm of the clutch is sleeved in the clutch guide groove in the handle body; one end of the clutch reset spring is arranged in the reset spring containing cavity of the clutch, and the other end of the clutch reset spring is inserted into the spring containing cavity at the end part of the transmission rod; the transmission rod reset spring is folded into a round shape and is placed in a fixed spring containing cavity in the handle body, a transmission shifting arm of the transmission rod is inserted into the left of the shifting arm containing cavity, and two ends of the transmission rod reset spring are respectively pressed between the transmission shifting arm and the shifting arm limiting table; the handle head is sleeved on the transmission rod through hole, the lug notch penetrates through the inner lug until the inner lug reaches the lug groove, and the convex hanging lugs are inserted into the handle head accommodating cavity.
2. The door lock handle anti-theft construction according to claim 1, wherein: the transmission shifting arm of the transmission rod is inserted into the right of the shifting arm accommodating cavity.
3. The door lock handle anti-theft construction according to claim 1, wherein: a limiting boss is convexly arranged on the positioning block; the handle is characterized in that a positioning groove is formed in the middle of the handle head, a lug notch at the head end of the handle is aligned with an inner lug notch in the handle accommodating cavity, and the positioning block is inserted into the positioning groove of the handle head and the inner lug notch in the handle accommodating cavity from the side face and is clamped into the limiting notch.
4. The door lock handle anti-theft construction according to claim 1, wherein: the middle part of the handle head is provided with a positioning screw hole, the reversing screw is screwed in the positioning screw hole, and the front end of the reversing screw is clamped in a limiting groove on the transmission rod.
5. The door lock handle anti-theft construction according to claim 1, wherein: the other end of the handle head is provided with a general handle mounting groove and a general plectrum mounting groove.
CN201510539200.9A 2015-08-29 2015-08-29 Anti-theft structure for door lock handle Active CN105133926B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510539200.9A CN105133926B (en) 2015-08-29 2015-08-29 Anti-theft structure for door lock handle

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Application Number Priority Date Filing Date Title
CN201510539200.9A CN105133926B (en) 2015-08-29 2015-08-29 Anti-theft structure for door lock handle

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CN105133926A CN105133926A (en) 2015-12-09
CN105133926B true CN105133926B (en) 2023-06-06

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