CN212027446U - Clutch control mechanism for lock fork and anti-theft lock - Google Patents

Abstract

The utility model discloses a clutch control mechanism of a shifting fork for a lock and an anti-theft lock thereof, which comprises a latch bolt component, a dead bolt component, an upper hook, a lower hook, a lock core shifting, a lock body shell, a shifting fork device arranged in the lock body shell and a shifting device forming a shifting connection relationship between the shifting fork device and the dead bolt component; when the door is locked inside and outside the door, a square shifting peach of the shifting fork device rotates anticlockwise to drive the main gear and the transmission gear to rotate, the transmission gear is controlled to drive the square bolt assembly to extend out of the lock body shell to lock the door through a middle shifting fork of the shifting device, and the middle shifting fork of the shifting device can also be directly driven anticlockwise to drive the square bolt assembly to extend out of the lock body shell to lock the door through the lock cylinder shifting; the lock shell is also internally provided with a mechanism for realizing the simultaneous rotation or separation of the middle shift block and the lower shift block by inserting a clutch pin of the middle shift block on the electric control shift fork device into the central rotating block, so as to control the retraction of the square bolt assembly and also realize the function of opening the door.

Description

Clutch control mechanism for lock fork and anti-theft lock

【Technical field】

The utility model relates to the lock industry, in particular to a clutch control mechanism for a lock fork and an anti-theft lock thereof.

【Background technique】

At present, most of the anti-theft locks on the market have complex processes, high costs and single performance. The finished products produced by the manufacturer have been completely finalized, and the non-key manual unlocking and key unlocking have been determined; if the user installs or uses it, If you want to change the direction of manual unlocking according to the characteristics of your own room, you can either remove the lock body from the door and replace the different fork components, or buy a new lock and install it again, which is not only very difficult to operate, but also takes a lot of time. , and requires professionals to be able to complete it.

In addition, the clutch control part of the existing lock fork device needs to start the control device to control the stroke after the linkage unlocking of the handle is completed, which cannot be automatically reset, resulting in the complex structure of the entire interlocking control device, and it is often used for a long time. Maintenance is required, resulting in poor safety and reliability of the entire product.

【Content of utility model】

The utility model provides a clutch control mechanism and an anti-theft lock for a lock fork, which has the advantages of simple process, low cost, adjustable manual unlocking direction and high reliability, and can quickly open the door lock in one step even if the door is locked.

The technical scheme adopted by the utility model to solve its technical problems is:

A clutch control mechanism for a locking fork, comprising a main gear, an upper shifting peach, a reversing fixing screw, a middle shifting peach and a lower shifting peach, the reversing fixing screw is fixed on the upper side or the lower side of the middle shifting peach, and the main gear The concentric sleeve is set on the upper side of the upper dial peach;

The center of the middle peach is sleeved with a central rotating block that is flush with the upper and lower end surfaces and connected to a certain angle in a cylindrical shape, and the upper peach and the lower peach are respectively coaxially sleeved on the center of the middle peach. On the upper and lower sides of the rotating block, there are respectively square handle holes in the center of the upper dial, the center rotating block and the lower dial, which are superimposed in layers and concentrically, respectively, which are convenient for installation and connection with each other;

The outer edge side of the middle dial peach is provided with a clutch pin inserted into or out of the center rotating block, the outer edge of the corresponding middle dial peach is radially provided with a guide hole for inserting the clutch pin into the outer side of the middle dial peach, and the center rotating block is radially provided with a guide hole. There is a rotation limit groove that cooperates with the end of the clutch pin inserted from the guide hole to drive the rotation of the central rotating block. The guide hole is also installed with a sleeve that is sleeved on the clutch pin and pushes the end of the clutch pin to rotate away from the center under normal conditions. The self-tensioning spring in the limit groove of the block, the outer edge of the middle of the clutch pin is provided with a step limit ring that limits the self-tensioning spring in the guide hole, and the outer port of the corresponding guide hole is installed and fixed to facilitate the passage of the clutch pin. A sealing piece that extends freely and limits the clutch pin and the self-tensioning spring to the guide hole through the step limit ring;

The clutch pin is inserted into the center rotating block under the push of external force to synchronously rotate the middle dial, the upper dial and the lower dial. Free rotation.

Further, the outer edge of the central rotating block is provided with a convex block that protrudes radially outward, and the inner wall of the center hole corresponding to the middle dial peach that is matched with the central rotating block is radially recessed inward and is provided with a convex block. The arc-shaped deflection limit slot is used to limit the deflection angle of the central rotating block.

Further, the outer edge in the opposite direction of the rotation limiting groove on the central rotating block is provided with a convex block that protrudes radially outward, and the inner wall of the center hole corresponding to the middle dial peach and the central rotating block is recessed radially inward. There is an arc-shaped deflection limit slot that cooperates with the convex block and is used to limit the deflection angle of the central rotating block.

Further, the outer edge of the middle dial peach is also extended with a dial extension plate that contacts the rear end of the oblique tongue assembly in the lock and is used to control the extension and retraction of the oblique bolt assembly.

An anti-theft lock with a lock fork clutch control mechanism, comprising a slanted tongue assembly, a square tongue assembly, an upper and lower hook, a lock core pick, a lock body shell, and a shift fork arranged in the lock body shell device, and a toggle device that forms a toggle connection between the fork device and the square tongue assembly. The upper and lower heaven and earth hooks are installed on the rear side of the lock body shell and are driven by the square tongue assembly to extend together or be stored in the lock. body shell; characterized in that,

The shifting fork device includes a main gear, an upper shifting stud, a reversing fixing screw, a middle shifting stud and a lower shifting stud, the reversing fixing screw is fixed on the upper side or the lower side of the middle shifting stud, and the main gear is coaxially sleeved. On the upper side of the upper dial peach; the center of the middle dial peach is provided with a central rotating block that is flush with the upper and lower end faces and is connected by a certain angle in a cylindrical shape, and the upper dial peach and the lower dial peach are respectively coaxial. The set is placed on the upper and lower sides of the center rotating block of the middle peach, and the center of the upper peach, the center rotating block and the lower peach, which are stacked concentrically in layers, are respectively provided with square handle holes for easy installation and connection with each other;

The outer edge side of the middle dial peach is provided with a clutch pin inserted into or out of the center rotating block, the outer edge of the corresponding middle dial peach is radially provided with a guide hole for inserting the clutch pin into the outer side of the middle dial peach, and the center rotating block is radially provided with a guide hole. There is a rotation limit groove that cooperates with the end of the clutch pin inserted from the guide hole to drive the rotation of the central rotating block. The guide hole is also installed with a sleeve that is sleeved on the clutch pin and pushes the end of the clutch pin to rotate away from the center under normal conditions. The self-tensioning spring in the rotation limit groove of the block, the outer edge of the middle of the clutch pin is provided with a step limit ring that limits the self-tensioning spring in the guide hole, and the outer port of the corresponding guide hole is installed and fixed to facilitate the passage of the clutch pin. It is a sealing piece that extends freely, and the clutch pin and the self-expanding spring are limited and fixed in the guide hole by the step limit ring; Control the extension and retraction of the oblique tongue assembly; the clutch pin is inserted into the center rotating block under the push of external force to synchronously rotate the middle dial peach, the upper dial peach and the lower dial peach, and the clutch pin rotates away from the center After the block, the upper peach and the lower peach rotate freely;

The shifting device includes a middle shifting fork and a transmission gear. The middle shifting fork and the transmission gear are superimposed and fixed and rotate synchronously. The transmission gear meshes with the main gear of the shifting fork device. Or retract the push-pull arm of the lock body shell, the main gear of the fork device drives the middle fork that rotates synchronously with the transmission gear to control the extension and retraction of the square tongue assembly;

When the door is locked inside the door, the upper dial of the shifting fork device rotates counterclockwise to drive the main gear and the transmission gear to rotate, and the control transmission gear drives the square tongue assembly to extend out of the lock body shell through the middle shifting fork of the shifting device to lock the door; When locking the door, the middle fork of the toggle device is directly driven counterclockwise by the pick of the lock cylinder to drive the square tongue assembly to extend out of the lock body to lock the door; and regardless of the inside or outside of the door, the handle is used to drive the upper or lower peach to reverse. Turn to drive the square tongue assembly to stick out to lock the door;

When the door is opened, turn the upper dial of the fork device clockwise downwards. When the reversing fixing screw is fixed on the upper side of the middle dial, the upper dial will push the middle dial through the downward protruding part of the reversing fixing screw. Rotating, the middle dial peach drives the main gear and the transmission gear to rotate, and drives the middle dial fork that rotates synchronously with the transmission gear to control the retraction of the square tongue assembly. When the middle dial peach rotates, it drives the oblique tongue assembly to retract inward to realize the square tongue The assembly and the tongue assembly retract the door at the same time;

The lock body shell is also provided with a motor and a clutch push plate, the screw shaft connected with the motor drives the clutch push plate to move left and right in a straight line, and a clutch pin is installed on the middle dial to move left and right under the push of the clutch push plate; , The information card equipped with the key of the lock gives a corresponding signal to the motor on the lock. After the motor receives the correct signal, it is energized and rotated, which drives the clutch push plate to move to the right, and the clutch push plate pushes the clutch pin along the guide hole of the middle dial to the right. Displacement, to control the coaxial linkage of the lower dial peach and the middle dial peach. When the lower dial peach rotates clockwise outside the door, the lower dial peach rotates and pushes the clutch pin blocked in its rotating track to drive the middle dial peach to rotate synchronously. , the rotation of the middle dial peach drives the main gear and the transmission gear to rotate, and drives the middle fork that rotates synchronously with the transmission gear to control the retraction of the square tongue assembly, which also realizes the function of opening the door; at the same time, if the lower dial peach is rotated counterclockwise outside the door, the center rotating block Synchronous reverse idling prevents misoperation when opening the door from excessive force and damage to the center dial, center rotating block, and clutch pin.

Further, a safety tongue assembly and a safety tongue pick are also arranged in the lock body shell, and the safety tongue pick controls the safety tongue assembly to extend or retract from the lock body shell.

Further, the lock body shell is also provided with a safety tongue assembly and a safety tongue pick, and the safety tongue pick controls the safety tongue assembly to extend or retract the lock body shell; There is also a push rod, a safety tongue link piece and a safety tongue toggle piece which are connected to each other by transmission between the middle pegs of the fork device. The left and right linear motion of the push rod pushes the deflection movement of the safety tongue toggle piece centered on the fulcrum. The lower side of the push rod is provided with a convex head that cooperates with the pick of the lock cylinder; the safety tongue assembly, the square tongue assembly and the oblique tongue assembly all protrude When the door is closed, the lock cylinder is turned clockwise outside the door through the mortise lock cylinder, and the lock cylinder pick is driven by the push rod to rotate the middle dial peach, and the middle dial peach drives the main gear of the fork device to rotate. The transmission gear of the driving device drives the middle shift fork to rotate, pulls the square tongue assembly to retract, and at the same time the middle derailleur peach drives the oblique tongue assembly to retract, and the push rod pulls the safety tongue toggle piece, and the safety tongue toggle piece is linked through the safety tongue piece. Drive the safety tongue to deflect the peach, and pull the safety tongue assembly to retract, so that the door can be opened quickly outside the door.

The beneficial effects of the present utility model are:

In the lock corresponding to the present utility model, since the outer edge side of the middle derailleur is equipped with a clutch pin that is inserted into or separated from the central rotating block, the corresponding middle derailleur guide hole is also fitted with a clutch pin that is sleeved on the clutch pin and pushes the clutch pin under normal conditions. The end part is separated from the self-tensioning spring in the rotation limit groove of the central rotating block; the middle dial peach, the upper dial peach and the lower dial peach are driven to rotate synchronously, and the clutch pin is inserted into the central rotary block under the push of external force. After the pin is separated from the center rotating block, the upper and lower peach rotate freely.

In this way, when indoors, when the door is opened (the square tongue assembly is extended at this time), turn the fork device clockwise downward, and the door lock can be quickly opened through the fork device and the toggle device; when outdoors, the safety tongue When the components, the square tongue component and the oblique tongue component are all extended out of the closed door, the lock cylinder pick is rotated clockwise through the mortise lock outside the door, and the lock core pick is driven by the push rod to rotate the middle dial peach, and the middle dial peach drives the The main gear of the fork device rotates, and the main gear drives the middle fork to rotate through the transmission gear of the toggle device. When the square tongue assembly is pulled to retract, the middle dial peach drives the oblique tongue assembly to retract, and the push rod pulls the safety tongue to dial. The moving piece, the toggle piece of the safety tongue drives the peach of the safety tongue to deflect through the linking piece of the safety tongue, and the toggle piece of the safety tongue also retracts, so that the door can be opened quickly outside the door, and when there is danger in the room, the door can be opened quickly to escape. When opening the door with the motor signal outside the door, turn the lower dial counterclockwise, and the center rotating block synchronously rotates in the reverse direction to prevent the misoperation of the reverse force when opening the door from damaging the center dial, the center rotating block and the clutch pin.

In addition, the main gear can be directly moved by turning the upper or lower peach counterclockwise, and the clockwise rotation of the upper or lower peach can be linked to the middle peach through the reversing set screw or clutch pin, and the middle peach can only be moved. The main gear is driven; and regardless of the inside or outside of the door, the handle is used to drive the upper dial or the lower dial to reverse to drive the square tongue assembly to extend to lock the door. Moreover, the reversing fixing screw is on the side corresponding to the upper or lower peach, and the corresponding upper or lower peach can be linked with the middle peach, so that the left and right directions are reversed, and the upper or lower peach is not changed. To the side of the fixing screw, the clutch push plate can only be pushed by the motor, and the clutch push plate pushes the clutch pin in, so that the middle dial can be linked.

【Description of drawings】

Fig. 1 is the front view structure schematic diagram when the oblique tongue of the present utility model is extended;

Fig. 2 is the connection schematic diagram when the oblique tongue of the present invention is extended and the motor clutch is closed;

3 is a schematic diagram of the connection when the oblique tongue of the present invention is extended and the motor clutch is separated;

Figure 4 is a schematic diagram of a partial transfer connection relationship when the oblique tongue of the present invention is extended;

Figure 5 is a three-dimensional exploded enlarged view of the shifting fork device and the shifting device of the present invention;

6 is an exploded enlarged view of the right side of the shifting fork device of the present utility model;

FIG. 7 is an enlarged structural view of the assembly part of the clutch pin in the shifting fork device of the present invention;

8 is an enlarged view of the cross-sectional connection structure of the peach in the present utility model;

Fig. 9 is the partial three-dimensional structure schematic diagram of the present utility model;

Fig. 10 is the structural schematic diagram of the door opening state of the present invention;

11 is a schematic structural diagram of the closed door state of the present invention.

【Detailed ways】

An anti-theft lock with a lock fork clutch control mechanism, since the clutch control mechanism of the lock fork is a part of the anti-theft lock, in this embodiment, the entire lock is described as a whole, and is not described separately here; As shown in Figures 1 to 11, the anti-theft lock includes a slant tongue assembly 1, a square tongue assembly 2, a safety tongue assembly 3, a safety tongue pick 4, an upper heaven and earth hook 5, a lower heaven and earth hook 6, and a lock cylinder pick 7 , the lock body shell 8, the fork device 9 arranged in the lock body shell 8, and the toggle device 10 forming a toggle connection relationship between the fork device 9 and the square tongue assembly 2, the upper and lower hooks 5 and the lower The hook 6 is installed on the rear side of the lock body shell 8 and is driven by the square tongue assembly 2 to extend or be accommodated in the lock body shell 8 together.

As shown in Fig. 1, Fig. 5 to Fig. 11, the shifting fork device 9 includes a main gear 90, an upper shifting stud 91, a reversing fixing screw 92, a middle shifting stud 93 and a lower shifting stud 94, and the reversing fixing screw 92 can be fixed On the upper or lower side of the middle dial peach 93, the main gear 90 is coaxially sleeved on the upper side of the upper dial peach 91, the lower dial peach 94 is arranged on the inner side of the door, and the outer edge of the middle dial peach 93 also extends with a contact. A toggle extension plate connected to the rear end of the oblique bolt assembly 1 in the lock for controlling the extension and retraction of the oblique bolt assembly 1 .

As shown in Fig. 5 to Fig. 8, a center rotating block 930 which is arranged flush with the upper and lower end surfaces and is connected with a certain angle in a cylindrical shape is sleeved in the center of the middle peach 93. The upper peach 91 and the lower peach 94 are respectively the same as The shaft is set on the upper and lower sides of the central rotating block 930 of the middle dial 93, and the upper dial 91, the central rotating block 930 and the lower dial 94, which are stacked concentrically in layers, are respectively provided with each other for easy installation and connection. A clutch pin 931 is installed on the outer edge side of the middle dial peach 93, which is inserted into or removed from the center rotating block, and the outer edge of the corresponding middle dial peach 93 is radially provided with a clutch pin inserted into the outer edge of the middle dial peach 93. In the guide hole 932 of the 931, the center rotating block 930 is radially provided with a rotation limit slot 9300 which cooperates with the end of the clutch pin 931 inserted from the guide hole 932 to drive the center rotating block 930 to rotate, and is also installed in the guide hole 932. The self-tensioning spring 933 is sleeved on the clutch pin 931 and pushes the end of the clutch pin 931 away from the rotation limiting groove 9300 of the central rotating block 930 under normal conditions. The circular step limit ring 9310 in the guide hole 932 is installed and fixed at the outer port of the corresponding guide hole 932 so that the clutch pin 931 can pass through and freely protrude, and the clutch pin 931 and the self through the circular step limit ring 9310 are installed and fixed. The tension spring 933 is limited and fixed to the sealing piece 944 in the guide hole 932; the clutch pin 931 is inserted into the center rotating block 930 under the push of external force to synchronize the middle dial 93, the upper dial 91 and the lower dial 94. Rotating, the upper and lower peach rotate freely after the clutch pin is separated from the center rotating block;

As shown in Fig. 5, Fig. 6 and Fig. 8, a projection 9301 is provided on the outer edge of the rotation limiting groove 9300 in the opposite direction on the central rotating block 930 to protrude radially outwards, and the corresponding middle dial peach 93 rotates with the center The inner wall of the center hole in which the block 930 is matched is radially inwardly recessed with an arc-shaped deflection limiting groove 9302 that cooperates with the convex block 9301 and is used to limit the deflection angle of the central rotating block 930 .

As shown in FIG. 1 , FIG. 10 and FIG. 11 , the shifting device 10 includes a middle shifting fork 100 and a transmission gear 101 . The middle shifting fork 100 and the transmission gear 101 are superimposed and fixed and rotate synchronously. The transmission gear 101 and the shifting fork device 9 The main gear 90 of the fork device 9 is engaged, and the middle shift fork 100 is provided with a push-pull arm 1000 that pushes the square tongue assembly 2 to extend or retract the lock body shell 8. The main gear 90 of the shift fork device 9 drives through the transmission gear 101. The middle shift fork 100 is used to control the extension and retraction of the square tongue assembly 2 .

As shown in FIGS. 1 to 8 , when the door is locked inside the door, the upper dial 91 of the shifting fork device 9 rotates counterclockwise to drive the main gear 90 and the transmission gear 101 to rotate, and the transmission gear 101 is controlled to pass through the middle dial of the shifting device 10 . The fork 100 drives the square tongue assembly 2 to extend out of the lock body shell 8 to lock the door; when the door is locked outside the door, the middle fork 100 of the toggle device 10 is directly driven counterclockwise by the lock cylinder pick 7 to drive the square tongue assembly 2 to extend out of the lock body shell 8 Lock the door. And no matter inside or outside the door, the handle is used to drive the upper dial 91 or the lower dial 94 to reverse to drive the square tongue assembly 2 to extend to lock the door.

As shown in Figures 1 to 11, when the door is opened from the inside, the square tongue assembly 2 is extended, and the upper dial 91 of the fork device 9 is turned clockwise downward. When the reversing fixing screw 92 is fixed on the middle dial 93 When the upper dial 91 pushes the middle dial 93 to rotate through the reversing fixing screw 92, the middle dial 93 drives the main gear 90 and the transmission gear 101 to rotate, and drives the middle dial fork 100 that rotates synchronously with the transmission gear 101 to rotate. The retraction of the square tongue assembly 2 is controlled, and the middle dial peg 93 rotates while driving the oblique tongue assembly 1 to retract inward, so that the square tongue assembly 2 and the oblique tongue assembly 1 can be retracted to open the door at the same time.

As shown in Figures 1 to 4 and Figures 9 to 11, the lock body shell 8 is also provided with a motor 11 and a clutch push plate 12. The screw shaft of the motor connection 11 drives the clutch push plate 12 to move in a straight line left and right. When the door is opened outside , the information card equipped with the key of the lock gives a corresponding signal to the motor 11 on the lock. After the motor 11 receives the correct signal, it is energized and rotated, which drives the clutch push plate 12 to move to the right, and the clutch push plate 12 drives the clutch pin 931 along the middle dial. The guide hole 932 of 93 is displaced to the right to control the coaxial linkage between the lower dial 94 and the middle dial 93. When the lower dial 94 is rotated clockwise outside the door, the lower dial 94 rotates and pushes to block its rotation. The clutch pin 931 in the track drives the middle dial peach 93 to rotate synchronously, the middle dial peach 93 rotates to drive the main gear 90 and the transmission gear 101 to rotate, and drives the middle fork that rotates synchronously with the transmission gear to control the retraction of the square tongue assembly, which also realizes the door opening. Function. After closing the door, under normal circumstances, the clutch pin 931 in the clutch push plate 12 and the guide hole 932 of the middle dial 93 is outside the rotation track of the lower dial 94, that is to say, there is no correct signal for the motor 11 to rotate, only The lower dial Peach 94 was driven to idle, and the door could not be opened. At the same time, if the lower dial 94 is rotated counterclockwise outside the door, the center rotating block 930 will idling in the opposite direction synchronously, so as to prevent the wrong operation and excessive reverse force from damaging the center dial 93, the center rotating block 930, and the clutch pin 931 when opening the door.

In addition, as shown in FIG. 1 to FIG. 11 , between the safety tongue pick 4 in the lock body shell 8 and the middle dial 93 of the fork device 9 is also provided with a push rod 15 that is connected to each other by transmission, and the safety tongue is linked with each other. The sheet 16 and the safety tongue toggle piece 17, the safety tongue pick 4 is connected to the safety tongue toggle piece 17 through the safety tongue linking piece 16, and the push rod 15 moves in a straight line around the fulcrum to push the safety tongue toggle piece centered on the fulcrum 17 Deflection movement, the lower side of the push rod 15 is provided with a protruding head 150 that cooperates with the lock cylinder pick 7; when the safety tongue assembly 3, the square tongue assembly 2 and the oblique tongue assembly 1 are all extended and closed The lock cylinder pick 7 is rotated clockwise by the mortise cylinder, the lock cylinder pick 7 drives the middle dial peach 93 to rotate through the push rod, the middle dial peach 93 drives the main gear 90 of the fork device 9 to rotate, and the main gear 90 passes through the toggle device. The transmission gear 101 of 10 drives the middle shift fork 100 to rotate, pulls the square tongue assembly 2 to retract, while the middle shift peach 93 drives the oblique tongue assembly 1 to retract, and the push rod pulls the safety tongue toggle piece 17, the safety tongue toggle piece 17 The safety tongue is driven to deflect by the safety tongue linkage piece 16, and the safety tongue assembly 3 is pulled to retract, so that the door can be opened quickly outside the door.

In a word, when closing the door, turn the upper dial 91 or the lower dial 94 counterclockwise, the upper dial 91 or the lower dial 94 drives the main gear 90, and drives the linkage assembly of the square tongue assembly through gear transmission, and the connection of the square tongue assembly. The moving element assembly drives the square tongue assembly 2 to extend, and the door is locked at this time; the safety tongue pick 4 is rotated counterclockwise upward, and the safety tongue pick 4 drives the safety tongue assembly 3 to extend, and the door is locked and secured at this time.

When the square tongue assembly 2 is extended, the upper dial peach 91 or the lower dial peach 94 can be turned downward clockwise to drive the middle dial peach 93 to rotate, the middle dial peach 93 drives the main gear 90, and the main gear 90 drives the square tongue assembly through gear transmission The linkage of the square tongue assembly drives the square tongue assembly 2 to retract. At the same time, the upper dial 91 or the lower dial 94 is divided into the inside and outside of the door, and is driven by the reversing fixing screw 92. The function of driving the square tongue assembly 2 to retract can be realized in the door. When it is outside the door, the motor 11 and the clutch push plate are required. The clutch principle of 12, the clutch push plate 12 is driven by the motor 11 to push the clutch pin 931 to close the clutch pin 931 on the middle dial 93, and then the upper dial 91 or the lower dial 94 also drives the square tongue assembly 2 to retract. .

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. All equivalent changes made according to the shape, structure and principle of the present invention shall be included in the present invention. new type of protection.

Claims (7)

1. A clutch control mechanism for a locking fork, comprising a main gear, an upper dial, a reversing set screw, a middle dial and a lower dial, and the reversing set screw is fixed on the upper or lower side of the middle dial, The main gear is coaxially sleeved on the upper side of the upper dial peach; it is characterized in that, The center of the middle peach is sleeved with a central rotating block that is flush with the upper and lower end surfaces and connected to a certain angle in a cylindrical shape, and the upper peach and the lower peach are respectively coaxially sleeved on the center of the middle peach. On the upper and lower sides of the rotating block, there are respectively square handle holes in the center of the upper dial, the center rotating block and the lower dial, which are superimposed in layers and concentrically, respectively, which are convenient for installation and connection with each other; The outer edge side of the middle dial peach is provided with a clutch pin inserted into or out of the center rotating block, the outer edge of the corresponding middle dial peach is radially provided with a guide hole for inserting the clutch pin into the outer side of the middle dial peach, and the center rotating block is radially provided with a guide hole. There is a rotation limit groove that cooperates with the end of the clutch pin inserted from the guide hole to drive the rotation of the central rotating block. The guide hole is also installed with a sleeve that is sleeved on the clutch pin and pushes the end of the clutch pin to rotate away from the center under normal conditions. The self-tensioning spring in the rotation limit groove of the block, the outer edge of the middle of the clutch pin is provided with a step limit ring that limits the self-tensioning spring in the guide hole, and the outer port of the corresponding guide hole is installed and fixed to facilitate the passage of the clutch pin. A sealing piece that protrudes freely and limits the clutch pin and the self-tensioning spring to the guide hole through the step limit ring; The clutch pin is inserted into the center rotating block under the push of external force to synchronously rotate the middle dial, the upper dial and the lower dial. Free rotation. 2 . The clutch control mechanism of a lock fork according to claim 1 , wherein the outer edge of the central rotating block protrudes radially outward and is provided with a convex block, and the corresponding middle shift peach and The inner wall of the central hole in which the central rotating block is matched is radially inwardly recessed and provided with an arc-shaped deflection limiting groove that cooperates with the convex block and is used to limit the deflection angle of the central rotating block. 3 . The clutch control mechanism of a lock fork according to claim 1 , wherein the outer edge in the opposite direction of the rotation limit groove on the central rotating block is provided with a convex block protruding radially outward. 4 . The inner wall of the corresponding center hole where the middle dial is matched with the central rotating block is radially inwardly recessed and provided with an arc-shaped deflection limiting groove that cooperates with the convex block and is used to limit the deflection angle of the central rotating block. 4 . The clutch control mechanism of a lock fork according to claim 1 , wherein the outer edge of the middle fork also extends to contact the rear end of the oblique tongue assembly in the lock for controlling the oblique tongue. 5 . Toggle extension for extension and retraction of components. 5. An anti-theft lock with a lock fork clutch control mechanism, comprising a slanted tongue assembly, a square tongue assembly, an upper and lower hook, a lock cylinder pick, a lock body shell, and a lock body disposed in the lock body shell. Fork device and toggle device forming a toggle connection between the fork device and the square tongue assembly, the upper and lower heaven and earth hooks are installed on the rear side of the lock body shell and are driven by the square tongue assembly to extend or store together in the lock body shell; it is characterized in that, The shifting fork device includes a main gear, an upper shifting stud, a reversing fixing screw, a middle shifting stud and a lower shifting stud, the reversing fixing screw is fixed on the upper side or the lower side of the middle shifting stud, and the main gear is coaxially sleeved. On the upper side of the upper dial peach; the center of the middle dial peach is provided with a central rotating block that is flush with the upper and lower end faces and is connected by a certain angle in a cylindrical shape, and the upper dial peach and the lower dial peach are respectively coaxial. The set is placed on the upper and lower sides of the center rotating block of the middle peach, and the center of the upper peach, the center rotating block and the lower peach, which are stacked concentrically in layers, are respectively provided with square handle holes for easy installation and connection with each other; The outer edge side of the middle dial peach is provided with a clutch pin inserted into or out of the center rotating block, the outer edge of the corresponding middle dial peach is radially provided with a guide hole for inserting the clutch pin into the outer side of the middle dial peach, and the center rotating block is radially provided with a guide hole. There is a rotation limit groove that cooperates with the end of the clutch pin inserted from the guide hole to drive the rotation of the central rotating block. The guide hole is also installed with a sleeve that is sleeved on the clutch pin and pushes the end of the clutch pin to rotate away from the center under normal conditions. The self-tensioning spring in the rotation limit groove of the block, the outer edge of the middle of the clutch pin is provided with a step limit ring that limits the self-tensioning spring in the guide hole, and the outer port of the corresponding guide hole is installed and fixed to facilitate the passage of the clutch pin. It is a sealing piece that extends freely, and the clutch pin and the self-expanding spring are limited and fixed in the guide hole by the step limit ring; Control the extension and retraction of the oblique tongue assembly; the clutch pin is inserted into the center rotating block under the push of external force to synchronously rotate the middle dial peach, the upper dial peach and the lower dial peach, and the clutch pin rotates away from the center After the block, the upper peach and the lower peach rotate freely; The shifting device includes a middle shifting fork and a transmission gear. The middle shifting fork and the transmission gear are superimposed and fixed and rotate synchronously. The transmission gear meshes with the main gear of the shifting fork device. Or retract the push-pull arm of the lock body shell, the main gear of the fork device drives the middle fork that rotates synchronously with the transmission gear to control the extension and retraction of the square tongue assembly; When the door is locked inside the door, the upper dial of the shifting fork device rotates counterclockwise to drive the main gear and the transmission gear to rotate, and the control transmission gear drives the square tongue assembly to extend out of the lock body shell through the middle shifting fork of the shifting device to lock the door; When locking the door, the middle fork of the toggle device is directly driven counterclockwise by the pick of the lock cylinder to drive the square tongue assembly to extend out of the lock body to lock the door; and regardless of the inside or outside of the door, the handle is used to drive the upper or lower peach to reverse. Turn to drive the square tongue assembly to stick out to lock the door; When the door is opened, turn the upper dial of the fork device clockwise downwards. When the reversing fixing screw is fixed on the upper side of the middle dial, the upper dial will push the middle dial through the downward protruding part of the reversing fixing screw. Rotating, the middle dial peach drives the main gear and the transmission gear to rotate, and drives the middle dial fork that rotates synchronously with the transmission gear to control the retraction of the square tongue assembly. When the middle dial peach rotates, it drives the oblique tongue assembly to retract inward to realize the square tongue The assembly and the tongue assembly retract the door at the same time; The lock body shell is also provided with a motor and a clutch push plate, the screw shaft connected with the motor drives the clutch push plate to move left and right in a straight line, and a clutch pin is installed on the middle dial to move left and right under the push of the clutch push plate; , The information card equipped with the key of the lock gives a corresponding signal to the motor on the lock. After the motor receives the correct signal, it is energized and rotated, which drives the clutch push plate to move to the right, and the clutch push plate pushes the clutch pin along the guide hole of the middle dial to the right. Displacement, to control the coaxial linkage of the lower dial peach and the middle dial peach. When the lower dial peach rotates clockwise outside the door, the lower dial peach rotates and pushes the clutch pin blocked in its rotating track to drive the middle dial peach to rotate synchronously. , the rotation of the middle dial peach drives the main gear and the transmission gear to rotate, and drives the middle fork that rotates synchronously with the transmission gear to control the retraction of the square tongue assembly, which also realizes the function of opening the door; at the same time, the lower dial peach is rotated counterclockwise outside the door, and the center rotating block is synchronized. Reverse idle. 6 . The anti-theft lock with a lock fork clutch control mechanism according to claim 5 , wherein the lock body shell is further provided with a safety tongue assembly and a safety tongue pick, and the safety tongue pick controls 6 . The safety tongue assembly extends or retracts into the lock housing. 7. An anti-theft lock with a lock fork clutch control mechanism according to claim 5, wherein the lock body shell is further provided with a safety tongue assembly and a safety tongue pick, and the safety tongue pick controls The safety tongue assembly extends or retracts from the lock body shell; a push rod, a safety tongue interlocking piece and a safety tongue are also provided between the lock cylinder pick in the lock body shell and the middle dial of the fork device. The toggle piece, the toggle piece of the safety tongue is toggled and connected to the toggle piece of the safety tongue through the link piece of the safety tongue, and the left and right linear motion of the push rod pushes the deflection movement of the toggle piece of the safety tongue with the fulcrum as the center. The protruding head for the lock cylinder pick; when the safety tongue component, the square tongue component and the oblique tongue component are all extended out of the closed door, the lock core pick is rotated clockwise through the mortise lock outside the door, and the lock core pick passes through The push rod drives the middle shift peach to rotate, the middle shift peach drives the main gear of the shift fork device to rotate, the main gear drives the middle shift fork to rotate through the transmission gear of the toggle device, pulls the square tongue assembly to retract, and at the same time the middle shift peach drives the oblique tongue assembly Retract, and the push rod pulls the toggle piece of the safety tongue, the toggle piece of the safety tongue drives the peg of the safety tongue to deflect through the linking piece of the safety tongue, and the toggle of the safety tongue assembly retracts to realize the quick door opening outside the door.

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