Lock body capable of locking rotation of handle
By setting a reset mechanism and a handle locking mechanism in the lock body, the problem of the handle being able to rotate freely after locking is solved, which enhances the safety and user experience of the lock body, ensures that the handle cannot rotate in a locked state, and improves the anti-destructive ability of the lock body.
Patent Information
- Application Number
- CN202422271093.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The existing plug-in door lock can still rotate freely after being locked, resulting in an increase in the psychological burden of users and a safety hazard, especially among the user groups with high safety requirements.
A lock body that locks the rotating hand handle is designed. By connecting the reset mechanism at the lower end of the hand handle assembly and setting the hand handle locking mechanism, it ensures that the hand handle assembly cannot rotate in a locked state, and provides an additional safe locking function in combination with the safety tongue assembly.
Effective locking of the hand-holding assembly enhances the safety and user experience of the lock body, reduces unnecessary worries, prevents the hand-holding from being easily rotated and destroyed by external forces, and improves the anti-destruction ability of the lock body.
Smart Images
Figure CN223089077U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door locks, and particularly relates to a lock body for locking the rotation of a door handle. Background Art
[0002] At present, with the development of social economy and the improvement of people's living standards, the requirements for the safety of residential and commercial spaces are also getting higher and higher. As one of the important safety protection devices, door locks not only undertake the task of protecting property safety, but also are directly related to the personal safety of residents. Mortise door locks are widely favored because of their advantages such as convenient installation, simple operation, and low maintenance cost, and have become one of the most common types of door locks in modern buildings.
[0003] However, there is a common problem in the design of existing mortise door locks, that is, after the door is locked, although the door lock itself is in the locked state, the door handle can still rotate freely. Although this phenomenon does not directly affect the function of the door lock, it will bring a certain psychological burden to users. Users may worry that the door lock is not properly closed due to the free rotation of the door handle, especially at night when it is quiet, this concern will be more obvious.
[0004] In addition, the free rotation of the door handle may also become a potential safety hazard and does not play a certain role in explosion prevention. In the case of malicious damage by illegal elements, they may use the rotation of the door handle to test the state of the door lock, or even try to find a way to enter, or try to damage it by twisting the door handle forcefully. This situation is particularly prominent among some user groups with higher requirements for safety, such as users in Australia and other places. Such users have higher expectations for the reliability and safety of door locks.
[0005] Therefore, how to overcome the above existing defects has become an important issue that needs to be solved urgently by those skilled in the art. Content of the Utility Model
[0006] The utility model overcomes the above technical deficiencies and provides a lock body for locking the rotation of a door handle.
[0007] To achieve the above object, the utility model adopts the following technical solutions:
[0008] A lock body for locking the rotation of a handle, comprising a lock case and a lock case cover covering the lock case. A main lock tongue assembly, a safety lock tongue assembly above the main lock tongue assembly, and a handle pick component below the main lock tongue assembly are installed in the lock case. The upper end of the handle pick component is connected to the main lock tongue assembly to drive the main lock tongue assembly to retract relative to the lock case, and the lower end is connected with a reset mechanism that can automatically reset after the handle pick component rotates. The safety lock tongue assembly is connected to the main lock tongue assembly to lock / unlock the main lock tongue assembly. A handle locking mechanism is arranged on the right side of the handle pick component, which is connected to the lock case and can slide up and down along the lock case to restrict / remove the restriction on the rotation of the handle pick component.
[0009] Further, a first pin shaft is arranged on the lock case. The handle locking mechanism includes a push rod slidably connected to the lock case and a first ball cooperating with the first pin shaft to enable the push rod to slide up and down and limit the push rod. The left side of the push rod abuts against the first pin shaft, and the right side abuts against the inner side wall of the lock case. A first installation hole is opened on the left side wall of the push rod, and the first ball is installed in the first installation hole through a first spring. When the push rod slides up and down, the first ball can protrude / retract into the push rod under the extrusion of the first pin shaft.
[0010] Further, a second pin shaft above the push rod and a third pin shaft below the push rod are also arranged on the lock case.
[0011] Further, the handle locking mechanism further includes two symmetrically arranged chutes inside and outside on the push rod and located at the lower end of the push rod. A locking block is arranged in the chute, and the locking block is connected to the lock case through an adjusting component to realize up and down adjustment in the chute.
[0012] Further, the adjusting component includes a plurality of first through holes arranged on the right side wall of the push rod and second balls connected to the locking block through a second spring. The first through holes are located on the right side of the chute. A second installation hole is opened on the locking block, and the second spring and the second balls are arranged in the second installation hole. The other end of the second ball is pressed and arranged in the first through hole. A limit pin is arranged in the chute, and a protrusion is also arranged on the locking block. Slide holes for the protrusion to pass through and slide therein are symmetrically arranged on the lock case and the lock case cover, and indication marks are arranged on the outer side walls of the lock case and the lock case cover on one side of the slide holes.
[0013] Further, a lock core installation hole is provided on the lock case, which is located on the left side of the push rod and at the upper end of the main lock tongue assembly. The push rod further includes an opening groove provided on the left side of the upper end of the push rod, an avoidance groove located below the opening groove, and a positioning pin with adjustable height installed in the avoidance groove. A third installation hole is provided in the avoidance groove, and the positioning pin is installed in the third installation hole. A fourth installation hole is provided on the left side wall of the third installation hole, and a third spring and a third ball exposed outside the fourth installation hole and arranged on the left side of the third spring are installed in the fourth installation hole.
[0014] Further, the main lock tongue assembly includes an oblique tongue that can extend / retract relative to the lock case, a pull rod with one end connected to the oblique tongue, and a pull rod bracket connected to the other end of the pull rod. A fourth spring is sleeved on the pull rod. The upper end of the pull rod bracket abuts against the push rod, and the handle dial component abuts against the lower end of the pull rod bracket.
[0015] Further, the handle dial component includes two handle dials symmetrically arranged inside and outside, and a spacer installed between the two handle dials. The handle dial includes a first dial piece, a second dial piece, and a third dial piece. The first dial piece and the second dial piece are arranged upward, and the second dial piece is located on the right side of the first dial piece. The third dial piece is arranged downward. The first dial piece abuts against the left side of the pull rod bracket, and the third dial piece abuts against the right side of the reset mechanism. A first limit post is provided on the lock case on the left side of the first dial piece; when the handle dial component is in the locked state, the first dial piece abuts against the right side of the first limit post, and the second dial piece abuts against the left side of the locking block. When the handle dial component is in the unlocked state, the second dial piece abuts against the left side of the third pin shaft. The handle dial further includes a handle installation hole.
[0016] Further, the reset mechanism includes a fixed seat provided on the lock case, a reset piece movably arranged on the fixed seat, and a fifth spring sleeved on the reset piece. The reset piece includes a limit portion. One end of the fifth spring abuts against the right side of the fixed seat, and the other end abuts against the left side of the limit portion. A second through hole is provided on the fixed seat, and the reset piece is inserted into the second through hole. A fourth pin shaft is further provided on the lock case on the right side of the third dial piece. The third dial piece abuts against the right side of the limit portion and is limited between the fourth pin shaft and the limit portion.
[0017] Further, a fifth pin shaft and a sixth pin shaft are also provided on the lock housing. The insurance tongue assembly includes a triangular tongue that can extend / retract relative to the lock housing, a first linkage plate whose upper end is rotatably connected to the lock housing through the fifth pin shaft, and a second linkage plate that is rotatably connected to the lock housing through the sixth pin shaft. A first torsion spring is sleeved on the fifth pin shaft, and a second torsion spring is sleeved on the sixth pin shaft. The middle part of the first linkage plate is clamped on the triangular tongue to drive the triangular tongue to move. The second linkage plate includes a limiting convex block. When the triangular tongue is in a state of extending out of the lock housing, the lower end of the first linkage plate abuts against the limiting convex block to limit the movement of the second linkage plate. The upper end of the pull rod frame abuts against the second linkage plate and can drive the second linkage plate to move. A second limiting post is also provided on the lock housing above the sixth pin shaft. One end of the first torsion spring abuts against the upper side wall of the lock housing, and the other end is connected to the triangular tongue. One end of the second torsion spring is connected to the second linkage plate, and the other end abuts against the second limiting post.
[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0019] The present invention provides a lock body for locking the rotation of the handle, and a reset mechanism is connected to the lower end of the handle peach assembly. By setting the reset mechanism, it is ensured that the handle peach assembly can return to the predetermined position after each operation, which not only makes the door look neater, but also provides a unified starting point for the next operation, facilitates user operation, and improves the consistency of operation and user experience. In the present invention, the safety tongue assembly is connected to the main lock tongue assembly to achieve locking / unlocking of the main lock tongue assembly. The setting of the safety tongue assembly is used to provide an additional safety locking function for the lock body of the present invention. When the lock body is in a locked state, the safety tongue assembly can further lock the main lock tongue assembly to prevent unauthorized opening, for example, to prevent criminals from inserting thin and long objects such as cards into the main lock tongue assembly for illegal unlocking. In the present invention, a handle locking mechanism is provided on the right side of the handle peach assembly, which is connected to the lock shell and can slide up and down along the lock shell to limit / unrestrict the rotation of the handle peach assembly. The handle locking mechanism of the present invention can slide up and down in the lock shell, and the rotation of the handle peach assembly is limited / unrestricted by sliding the handle locking mechanism up and down. When the handle locking mechanism slides down, it abuts against the inner and outer handle peach assemblies, thereby locking the handle peach assemblies to prevent the handle peach assemblies from rotating; when unlocking is required, the handle locking mechanism is driven to slide up, and at this time the handle locking mechanism no longer abuts against the handle peach assemblies, and the handle peach assemblies can rotate. In this case, by setting the handle locking mechanism, the user can set the handle locking mechanism as needed, so as to limit the rotation of the handle peach assembly when the main lock tongue assembly is in the locked state, thereby effectively locking / unlocking the handle peach assembly. In this way, when the door is in a locked state, the handle peach assembly cannot be rotated at will, which enhances the safety and user experience of the lock body of this case. Allowing users to intuitively feel the safety status of the lock body after the lock body is closed, reducing unnecessary worries. Through the action of the handle locking mechanism, the handle can be locked in the closed state of the lock body, so that it cannot be rotated at will, preventing the handle from being easily rotated and damaged by external forces, and increasing the anti-destruction ability of the lock body. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is an exploded view of the overall structure of the lock body in this case.
[0021] Figure 2 This is a side view of the lock body with the lock shell cover hidden.
[0022] Figure 3 This is one of the overall structural exploded views of the handle locking mechanism in this case.
[0023] Figure 4 This is the second exploded view of the overall structure of the handle locking mechanism in this case.
[0024] Figure 5 This is a front view of the lock body in the locked state after the lock shell cover is hidden.
[0025] Figure 6 It is the front view of the lock body of this case in the unlocked state after hiding the lock shell cover.
[0026] Figure 7 It is the front view of the lock body of this case in the locked state after hiding the lock shell.
[0027] Figure 8 It is the front view of the lock body of this case in the unlocked state after hiding the lock shell.
[0028] Figure 9 It is the disassembled view of the handle dial component of this case.
[0029] Figure 10 It is about this case Figure 2 The enlarged view at position A in. Specific implementation manner
[0030] The features of the present utility model and other related features are further described in detail through the following embodiments for the understanding of those skilled in the same industry:
[0031] Regarding the descriptions of the positional relationships of components such as front, back, top, bottom, left, right, inside, and outside in this case, please refer to Figure 1 、 Figure 5 The orientations shown in.
[0032] Such as Figures 1 to 10As shown in the figure, this case provides a lock body that locks the rotation of the handle, including a lock housing 100 and a lock housing cover 200 covering the lock housing 100. The lock housing 100 is the basic structure of the entire lock body, used to accommodate all internal components, and is enclosed by the lock housing cover 200 to form a complete outer shell to protect the internal components from the external environment. Specifically, in implementation, the lock housing 100 and the lock housing cover 200 are common squares in the art, and the two are fixedly connected by bolts. Inside the lock housing 100, a main lock tongue assembly 1, a safety tongue assembly 2 located above the main lock tongue assembly 1, and a handle dial component 3 located below the main lock tongue assembly 1 are installed. Specifically, in implementation, the main lock tongue assembly 1 is arranged at the central position inside the lock housing 100, responsible for the basic locking function of the lock body. The safety tongue assembly 2 is provided to provide an additional safety locking function. When the lock body is in the locked state, the safety tongue assembly 2 can further lock the main lock tongue assembly 1 to prevent unauthorized opening, such as an illegal person using a card to unlock the lock illegally. The upper end of the handle dial component 3 is connected to the main lock tongue assembly 1 to drive the main lock tongue assembly 1 to retract relative to the lock housing 100, and the lower end is connected to a reset mechanism 4 that can automatically reset the handle dial component 3 after rotation. Through the connection of the upper end of the handle dial component 3 to it, when the handle rotates, the handle dial component 3 will drive the main lock tongue assembly 1 to extend outwards or retract inwards, realizing the locking or unlocking of the door. The handle dial component 3 is located below the main lock tongue assembly 1 and is connected to the main lock tongue assembly 1 through the upper end to realize the main operation of the lock body. Its lower end is connected to the reset mechanism 4 to ensure that after each operation, the handle dial component 3 can automatically return to its original position, ensuring the consistent operation of the handle. The safety tongue assembly 2 is connected to the main lock tongue assembly 1 to realize the locking / unlocking of the main lock tongue assembly 1. On the right side of the handle dial component 3, a handle locking mechanism 5 is provided, which is connected to the lock housing 100 and can slide up and down along the lock housing 100 to limit / remove the limitation of the rotation of the handle dial component 3. By setting the handle locking mechanism 5, when the lock body is in the closed state, the handle dial component 3 cannot be rotated randomly, enhancing the safety and user experience of the lock body. By reducing the meaningless rotation of the handle dial component, it helps to reduce the wear of the internal mechanical components of the lock body and extend the service life of the lock body.
[0033] Specifically, as Figures 1 - 5As shown in the figure, a first pin shaft 101 is provided on the lock case 100. The first pin shaft 101 is fixedly installed on the lock case 100. The handle locking mechanism 5 of this case includes a push rod 51 slidably connected to the lock case 100, and a first ball 52 that cooperates with the first pin shaft 101 to slide the push rod 51 up and down and limit the position of the push rod 51. The left side of the push rod 51 abuts against the first pin shaft 101, and the right side abuts against the inner wall of the lock case 100. The push rod 51 is slidably connected to the lock case 100. The up and down sliding of the push rod 51 is realized through the cooperation of the first pin shaft 101 and the first ball 52, and at the same time, the position of the push rod 51 is limited to accurately lock the handle dial cam assembly 3. A first mounting hole 511 is formed on the left side wall of the push rod 51. The first ball 52 is installed in the first mounting hole 511 through a first spring 53. When the push rod 51 slides up and down, the first ball 52 can extend / retract into the push rod 51 under the extrusion of the first pin shaft 101. The first spring 53 is used to provide elastic force so that the first ball 52 can maintain an extended state when not affected by external forces. At the same time, the first spring 53 provides support for the first ball 52, enabling the push rod 51 to move smoothly during the sliding process and reducing the resistance during operation. The cooperation design of the first ball 52 and the first pin shaft 101 enables the push rod 51 to be accurately positioned when sliding up and down, ensuring that it can accurately reach the position when the handle dial cam assembly 3 needs to be locked. The handle locking mechanism with this structural setting in this case adopts the cooperation design of the first ball 52 and the first pin shaft 101, making the locking and unlocking processes simple and fast, and improving the user experience.
[0034] Further, as Figure 1 , Figure 2 , Figure 5 shown, in order to limit the stroke distance of the push rod 51 sliding up and down relative to the lock case 100, a second pin shaft 102 is further provided on the lock case 100 above the push rod 51 and a third pin shaft 103 is provided below the push rod 51. The setting of the second pin shaft 102 is used to limit the maximum upward sliding position of the push rod 51 to prevent the push rod 51 from moving upward excessively, resulting in locking failure or damage. The setting of the third pin shaft 103 is used to limit the maximum downward sliding position of the push rod 51 to ensure that the push rod 51 can accurately lock the handle dial cam assembly 3 when it is completely lowered. Through the combined setting of the second pin shaft 102 and the third pin shaft 103, the up and down sliding range of the push rod 51 can be accurately controlled, avoiding mechanical failures or malfunctions that may be caused by excessive movement, and ensuring that the push rod 51 can accurately reach the specified position during the locking and unlocking processes.
[0035] Further, as Figures 1 - 5As shown, the handle locking mechanism 5 further includes chutes 512 provided on the push rod 51 and located at the lower end of the push rod 51. There are two chutes 512 symmetrically arranged inside and outside, and a locking block 54 is arranged in the chutes 512. The chutes 512 are provided to accommodate the locking block 54 and at the same time play a role in guiding the locking block 54 to slide up and down in the chutes 512. The two inner and outer locking blocks 54 respectively correspond to the two inner and outer handle pick peaches 31 of the handle pick peach assembly 3, so that both the inner and outer handle pick peach assemblies 31 can be effectively locked, ensuring that the inner and outer handles of the lock body cannot rotate in the locked state. The locking block 54 is connected to the lock case 100 through an adjusting assembly to achieve up and down adjustment in the chute 512. Through the setting of the adjusting assembly, the locking block 54 can be adjusted up and down in the chute 512, so that the handle locking mechanism 5 can adapt to different types of handle pick peach assemblies 3. Users can adjust according to different models of handle pick peach assemblies 3 to ensure the best locking effect, improving the versatility and flexibility of the system.
[0036] Specifically, as Figure 3 , Figure 4As shown in the figure, the adjustment component of this case includes several first through holes 513 provided on the right side wall of the push rod 51, and a second ball 56 connected to the locking block 54 through a second spring 55. The first through holes 513 are located on the right side of the sliding groove 512. The first through holes 513 are provided to guide the sliding of the locking block 54 and provide positioning holes required for adjusting the position of the locking block 54. After adjusting the corresponding position, the first through holes 513 position and limit the locking block 54. A second mounting hole 541 is provided on the locking block 54. The second spring 55 and the second ball 56 are arranged in the second mounting hole 541, and the other end of the second ball 56 is pressed and arranged in the first through hole 513. The second ball 56 is connected to the second mounting hole 541 on the locking block 54 through the second spring 55 and is pressed and arranged in the first through hole 513. Through this connection method of this structure, the locking block 54 is connected and fixed to the push rod 51. A limit pin 57 is provided in the sliding groove 512 to limit the sliding range of the locking block 54 and prevent it from slipping out of the sliding groove 512. A protrusion 542 is also provided on the locking block 54. Symmetrically arranged on the lock case 100 and the lock case cover 200 are sliding holes 300 through which the protrusion 542 passes and can slide therein. The cooperation of the protrusion 542 and the sliding holes 300 enables the user to adjust the position of the locking block 54 from the outside of the lock body of this case when installing the lock body, realizing the locking of the handle dial component 3, and at the same time, the user can also choose whether to install the function of locking the handle dial component 3 to meet different customer requirements. Indication marks 400 are provided on the outer side walls of the lock case 100 and the lock case cover 200 on one side of the sliding holes 300. In specific implementation, the indication marks 400 include corresponding indication words and arrows to prompt the user to lock and unlock. Specifically, it prompts the user to select whether to implement the function of locking the handle dial component 3 by adjusting the protrusion 542 and the adjustment component. The combined design of the indication marks 400 and the sliding holes 300 enables the user to intuitively see the position of the locking block 54, facilitating adjustment.
[0037] Furthermore, as Figures 1 - 10As shown, a lock core mounting hole 107 is provided on the lock housing 100, which is located on the left side of the push rod 51 and on the upper end of the main lock tongue assembly 1. In specific implementation, a lock core assembly is installed in the lock core mounting hole 107, and the user can control the up and down sliding of the push rod 51 through the lock core assembly to achieve locking and unlocking of the lock body of this case. The push rod 51 also includes an opening groove 58 arranged on the left side of the upper end of the push rod 51, an escape groove 59 located below the opening groove 58, and a positioning pin 60 with adjustable height installed in the escape groove 59. The setting of the opening groove 58 makes it convenient for the user to move the opening groove 58 through the lock core assembly, thereby driving the push rod 51 to slide up and down along the lock housing 100, thereby achieving locking / unlocking of the handle peach assembly 3. The setting of the avoidance groove 59 facilitates the main lock tongue assembly 1 to avoid the locking / unlocking of the handle and peach assembly 3 when the push rod 51 is driven to slide up and down. The setting of the positioning pin 60 facilitates the main lock tongue assembly 1 to press the positioning pin 60 to drive the push rod 51 to slide upward to achieve unlocking. When installing the lock body of this case, the user can select and install the corresponding lock core assembly according to the needs to achieve different door opening methods, which provides users with more choices and conveniences and has good practicality. A third mounting hole 591 is provided in the avoidance groove 59, and the positioning pin 60 is installed in the third mounting hole 591. A fourth mounting hole 5911 is provided on the left side wall of the third mounting hole 591. A third spring 5912 is installed in the fourth mounting hole 5911, and a third ball 5913 is provided on the left side of the third spring 5912 and exposed in the fourth mounting hole 5911. The third ball 5913 is pressed and arranged at the opening of the fourth mounting hole 5911, and the third spring 5912 provides elastic support for the third ball 5913, so that the third ball 5913 can remain in an extended state when not subjected to external force, thereby achieving the pressing and fixing of the positioning pin 60. At the same time, when installing the lock body of this case, the user can adjust the height of the positioning pin 60 relative to the push rod 51 by adjusting the third ball 5913 and the third spring 5912. When the user needs to unlock the door by driving the main lock tongue assembly 1 through the lock core assembly and then driving the positioning pin 60 to drive the push rod 51 to slide upward, the positioning pin 60 needs to be arranged to extend upward in the avoidance groove 90 so as to facilitate the main lock tongue assembly 1 to press against it. When the user does not need this door opening method, the positioning pin 60 only needs to be sunk into the third mounting hole 591, and its upper end is parallel to the bottom of the avoidance groove 90, so that it will not interfere with the main lock tongue assembly 1. By adjusting the height of the positioning pin 60, the user can choose different unlocking methods according to actual needs, which increases the flexibility of the lock body. When the user does not need a specific unlocking method, the position of the positioning pin 60 can be simply adjusted so that the main lock tongue assembly 1 and other components will not be interfered with, thereby improving the compatibility and versatility of the entire lock body.
[0038] Specifically, Figure 1 , Figure 2 , Figures 5 - 8As shown in the figure, the main lock tongue assembly 1 of this case includes a bevel tongue 11 that can extend / retract relative to the lock housing 100, a pull rod 12 with one end connected to the bevel tongue 11, and a pull rod bracket 13 connected to the other end of the pull rod 12. A fourth spring 14 is sleeved on the pull rod 12. The upper end of the pull rod bracket 13 abuts against the push rod 51, and the handle dial component 3 abuts against the lower end of the pull rod bracket 13. Specifically in implementation, the upper end of the pull rod bracket 13 abuts against the left side of the push rod 51, and during movement, it can slide in the avoidance groove 90, and the avoidance groove 90 can avoid the pull rod bracket 13 to prevent interference. The lower end of the pull rod bracket 13 abuts against the right side of the handle dial component 3, so as to drive the pull rod bracket 13 to move through the rotation of the handle dial component 3, thereby driving the bevel tongue 11 to retract / extend relative to the lock housing 100 to achieve locking and unlocking. Other structures of the main lock tongue assembly 1 are general technologies in this field and are not the focus of this case, so they will not be elaborated here.
[0039] Specifically, as Figure 1 , Figure 2 , Figures 5 - 9 shown, the handle dial component 3 includes two handle dials 31 symmetrically arranged inside and outside, and a spacer 32 installed between the two handle dials 31. The inner and outer handle dials 31 are respectively used to connect the inner and outer door handles when installing the lock body of this case. The setting of the spacer 32 is used to isolate the door handles installed by the inner and outer handle dials 31 to prevent the inner and outer door handles from extending too far during installation, causing installation difficulties or inability to install. The handle dial 31 includes a first dial 311, a second dial 312, and a third dial 313. The handle dial 31 is integrally formed. The first dial 311 and the second dial 312 are arranged upward, and the second dial 312 is located on the right side of the first dial 311. The third dial 313 is arranged downward. The first dial 311 abuts against the left side of the pull rod bracket 13. When the handle dial 31 is rotated, power is transmitted to the pull rod bracket 13 through the first dial 311, thereby driving the bevel tongue 11 to move. The third dial 313 abuts against the right side of the reset mechanism 4, and the automatic reset of the handle dial 31 is achieved through the reset mechanism 4. A first limit post 108 is provided on the lock housing 100 on the left side of the first dial 311; when the handle dial component 3 is in the locked state, the first dial 311 abuts against the right side of the first limit post 108, and the second dial 312 abuts against the left side of the locking block 54. When the handle dial component 3 is in the unlocked state, the second dial 312 abuts against the left side of the third pin shaft 103. Through the cooperation of the locking block 54 and the second dial 312, the fixation of the handle dial component 3 in the locked state is achieved; through the cooperation of the third pin shaft 103 and the second dial 312, the position fixation in the unlocked state is achieved. The design of the first limit post 108 and the third pin shaft 103 ensures the position fixation of the handle dial component 3 in the locked and unlocked states, preventing failures caused by excessive rotation. The handle dial 31 also includes a handle installation hole 34 for installing the door handle.
[0040] As Figure 2 , Figure 5 , Figure 10 shown, specifically, the reset mechanism 4 of this case includes a fixed seat 41 arranged on the lock housing 100, a reset piece 42 movably arranged on the fixed seat 41, and a fifth spring 43 sleeved on the reset piece 42. The fixed seat 41 is fixedly installed on the lock housing 100, preferably integrally formed with the lock housing 100, and is used to fix the reset piece 42 and provide support for the fifth spring 43. The reset piece 42 includes a limiting portion 421, and the limiting portion 421 is used to cooperate with the fifth spring 43 and limit the moving range of the reset piece 42. The reset piece 42 pushes the handle dial component 3 to reset under the elastic force of the fifth spring 43. One end of the fifth spring 43 abuts against the right side of the fixed seat 41, and the other end abuts against the left side of the limiting portion 421. A second through hole 411 is formed on the fixed seat 41, and the reset piece 42 is inserted into the second through hole 411 to ensure that the reset piece 42 can move stably within the fixed seat 41.
[0041] A fourth pin shaft 104 is further arranged on the lock housing 100 on the right side of the third dial 313, and is used to limit the moving range of the third dial 313 to the right, so as to limit the rotation angle of the handle dial 31. The third dial 313 abuts against the right side of the limiting portion 421 and is limited between the fourth pin shaft 104 and the limiting portion 421 to limit the moving range of the third dial 313 and prevent unnecessary deviation or jamming during the reset process.
[0042] Specifically, as Figure 1 , Figure 2 , Figures 5 - 8As shown in the figure, a fifth pin shaft 105 and a sixth pin shaft 106 are further provided on the lock case 100 of this case. The safety tongue assembly 2 includes a triangular tongue 21 that can protrude / retract relative to the lock case 100, a first linkage piece 22 whose upper end is rotatably connected to the lock case 100 through the fifth pin shaft 105, and a second linkage piece 23 that is rotatably connected to the lock case 100 through the sixth pin shaft 106. A first torsion spring 6 is sleeved on the fifth pin shaft 105, and a second torsion spring 7 is sleeved on the sixth pin shaft 106. The middle part of the first linkage piece 22 is clamped on the triangular tongue 21 to drive the triangular tongue 21 to move. The second linkage piece 23 includes a limit protrusion 231. When the triangular tongue 21 is in the state of protruding from the lock case 100, the lower end of the first linkage piece 22 abuts against the limit protrusion 231 to limit the movement of the second linkage piece 23, and the upper end of the pull rod frame 13 abuts against the second linkage piece 23 and can drive the second linkage piece 23 to move. A second limit post 109 is further provided on the lock case 100 above the sixth pin shaft 106. One end of the first torsion spring 6 abuts against the upper side wall of the lock case 100, and the other end is connected to the triangular tongue 21. The first torsion spring 6 is used to provide torque support so that the triangular tongue 21 can remain in a preset position without external force. One end of the second torsion spring 7 is connected to the second linkage piece 23, and the other end abuts against the second limit post 109. The second torsion spring 7 is used to provide torque support so that the second linkage piece 23 can remain in a preset position without external force. In this case, the first linkage piece 22 and the second linkage piece 23 are respectively connected to the lock case 100 through the fifth pin shaft 105 and the sixth pin shaft 106, and respectively provide torque support through the first torsion spring 6 and the second torsion spring 7, forming a linkage structure with each other, making the protrusion and retraction movements of the triangular tongue 21 smoother. During specific implementation, as the triangular tongue 21 gradually retracts into the lock case 100, the first linkage piece 22 gradually moves away from the limit protrusion 231, thereby releasing the restriction on the second linkage piece 23. At this time, the second linkage piece 23 moves downward under the action of the torque of the second torsion spring 7, and its front end abuts against the oblique tongue 11, thereby locking the oblique tongue 11 to prevent criminals from opening the door lock by inserting a card or other means.
[0043] The working principle of this case is described below:
[0044] 1. As shown in Figure 5 、 Figure 7As shown in the figure, after the lock body of this case is installed, when closing the door, the triangular tongue 21 retracts into the lock shell 100 after hitting the door frame. While the triangular tongue 21 retracts, it drives the first linkage piece 22 to move to the right. The first linkage piece 22 releases the restriction on the upper limit convex block 231 of the second linkage piece 23. Under the torque action of the second torsion spring 7, the front end of the second linkage piece 23 naturally moves downward to abut against the inclined tongue 11, thus locking the inclined tongue 11. After closing the door, the inclined tongue 11 drives the pull rod 12 to pop out and reset together under the elastic force of the fourth spring 14; the triangular tongue 21 stops after hitting the door frame; then the user can move the push rod 51 downward by dialing the lock core assembly installed in the lock core installation hole 107, so that the inner and outer locking blocks 54 respectively abut against the inner and outer handle dial peaches 31, thereby realizing the locking of the locked handle dial peach assembly 3.
[0045] 2. As Figure 6 , Figure 8 shown in the figure, when opening the door, the user can move the push rod 51 upward by dialing the lock core assembly installed in the lock core installation hole 107 inside or outside the door, releasing the abutting state between the inner and outer locking blocks 54 and the inner and outer handle dial peaches 31. Then turn the handle inside or outside the door, drive the pull rod frame 13 to move to the right through the handle dial peach 31. Then the pull rod frame 13 drives the second linkage piece 23 to rotate. After the front end of the second linkage piece 23 leaves the inclined tongue 11, it is unlocked. Continue to turn the handle dial peach 31 until the inclined tongue 11 is completely retracted and the door is unlocked.
[0046] As above, what this case protects is a lock body that locks the rotation of the handle. All technical solutions identical or similar to this case should be regarded as falling within the protection scope of this case.
Claims
1. A lock body for locking the rotation of a handle, comprising a lock housing (100) and a lock housing cover (200) covering the lock housing (100). A main lock tongue assembly (1), a safety tongue assembly (2) located above the main lock tongue assembly (1), and a handle dial cam assembly (3) located below the main lock tongue assembly (1) are installed in the lock housing (100), and it is characterized in that: The upper end of the handle dial cam assembly (3) is connected to the main locking tongue assembly (1) to drive the main locking tongue assembly (1) to retract relative to the lock housing (100), and the lower end is connected with a reset mechanism (4) that can automatically reset the handle dial cam assembly (3) after rotation. The safety tongue assembly (2) is connected to the main locking tongue assembly (1) to lock / unlock the main locking tongue assembly (1). On the right side of the handle dial cam assembly (3), there is a handle locking mechanism (5) connected to the lock housing (100) and capable of sliding up and down along the lock housing (100), thereby restricting / releasing the rotation of the handle dial cam assembly (3).
2. The lock body for locking the rotation of the handle, as described in claim 1, is characterized in that: A first pin shaft (101) is provided on the lock housing (100). The handle locking mechanism (5) includes a push rod (51) slidably connected to the lock housing (100), and a first ball (52) that cooperates with the first pin shaft (101) to enable the push rod (51) to slide up and down and limit the push rod (51). The left side of the push rod (51) abuts against the first pin shaft (101), and the right side abuts against the inner side wall of the lock housing (100). A first mounting hole (511) is formed on the left side wall of the push rod (51). The first ball (52) is installed in the first mounting hole (511) through a first spring (53). When the push rod (51) slides up and down, the first ball (52) can extend / retract into the push rod (51) under the extrusion of the first pin shaft (101).
3. A lock body for locking the rotation of a handle, characterized in that: A second pin shaft (102) is further provided on the lock housing (100) above the push rod (51), and a third pin shaft (103) is provided below the push rod (51).
4. A lock body for locking the rotation of a handle, characterized in that: The handle locking mechanism (5) further includes two symmetrically arranged chutes (512) on the inner and outer sides of the push rod (51) and located at the lower end of the push rod (51). A locking block (54) is arranged in the chutes (512). The locking block (54) is connected to the lock housing (100) through an adjusting assembly to enable vertical adjustment in the chutes (512).
5. A lock body for locking the rotation of a handle, characterized in that: The adjusting assembly includes a number of first through holes (513) arranged on the right side wall of the push rod (51), and a second ball (56) connected to the locking block (54) through a second spring (55). The first through holes (513) are located on the right side of the chutes (512). A second mounting hole (541) is formed on the locking block (54). The second spring (55) and the second ball (56) are arranged in the second mounting hole (541). The other end of the second ball (56) is pressed and arranged in the first through holes (513). A limit pin (57) is arranged in the chutes (512). A protrusion (542) is further provided on the locking block (54). Symmetrically arranged sliding holes (300) for the protrusion (542) to pass through and slide therein are provided on the lock housing (100) and the lock housing cover (200). Indication marks (400) are provided on the outer side walls of the lock housing (100) and the lock housing cover (200) on one side of the sliding holes (300).
6. A lock body for locking the rotation of a handle, characterized in that: A lock core mounting hole (107) is formed in the lock case (100) on the left side of the push rod (51) and at the upper end of the main lock tongue assembly (1). The push rod (51) further includes an opening groove (58) provided on the left side of the upper end of the push rod (51), an avoidance groove (59) located below the opening groove (58), and a height-adjustable positioning pin (60) installed in the avoidance groove (59). A third mounting hole (591) is formed in the avoidance groove (59), the positioning pin (60) is installed in the third mounting hole (591), a fourth mounting hole (5911) is formed in the left side wall of the third mounting hole (591), a third spring (5912) is installed in the fourth mounting hole (5911), and a third ball (5913) exposed outside the fourth mounting hole (5911) is provided on the left side of the third spring (5912).
7. The lock body for locking the rotation of the handle, as claimed in claim 6, wherein: The main lock tongue assembly (1) includes an oblique tongue (11) that can extend / retract relative to the lock case (100), a pull rod (12) with one end connected to the oblique tongue (11), and a pull rod bracket (13) connected to the other end of the pull rod (12). A fourth spring (14) is sleeved on the pull rod (12). The upper end of the pull rod bracket (13) abuts against the push rod (51), and the handle dial component (3) abuts against the lower end of the pull rod bracket (13).
8. A lock body for locking the rotation of a handle, characterized in that: The handle dial component (3) includes two handle dials (31) symmetrically arranged inside and outside, and a spacer (32) installed between the two handle dials (31). The handle dial (31) includes a first dial (311), a second dial (312), and a third dial (313). The first dial (311) and the second dial (312) are arranged upward, and the second dial (312) is located on the right side of the first dial (311). The third dial (313) is arranged downward. The first dial (311) abuts against the left side of the pull rod bracket (13), and the third dial (313) abuts against the right side of the reset mechanism (4). A first limit post (108) is provided on the lock case (100) on the left side of the first dial (311); when the handle dial component (3) is in the locked state, the first dial (311) abuts against the right side of the first limit post (108), and the second dial (312) abuts against the left side of the locking block (54). When the handle dial component (3) is in the unlocked state, the second dial (312) abuts against the left side of the third pin shaft (103). The handle dial (31) further includes a handle mounting hole (34).
9. A lock body for locking the rotation of a handle, characterized in that: The reset mechanism (4) includes a fixed seat (41) provided on the lock case (100), a reset piece (42) movably provided on the fixed seat (41), and a fifth spring (43) sleeved on the reset piece (42). The reset piece (42) includes a limiting portion (421). One end of the fifth spring (43) abuts against the right side of the fixed seat (41), and the other end abuts against the left side of the limiting portion (421). A second through hole (411) is formed in the fixed seat (41), and the reset piece (42) is inserted into the second through hole (411). A fourth pin shaft (104) is further provided on the lock case (100) on the right side of the third dial piece (313). The third dial piece (313) abuts against the right side of the limiting portion (421) and is limited between the fourth pin shaft (104) and the limiting portion (421).
10. A lock body for locking the rotation of a handle, characterized in that: A fifth pin shaft (105) and a sixth pin shaft (106) are further provided on the lock case (100). The safety tongue assembly (2) includes a triangular tongue (21) that can extend / retract relative to the lock case (100), a first linkage piece (22) whose upper end is rotatably connected to the lock case (100) through the fifth pin shaft (105), and a second linkage piece (23) that is rotatably connected to the lock case (100) through the sixth pin shaft (106). A first torsion spring (6) is sleeved on the fifth pin shaft (105), and a second torsion spring (7) is sleeved on the sixth pin shaft (106). The middle of the first linkage piece (22) is clamped on the triangular tongue (21) to drive the triangular tongue (21) to move. The second linkage piece (23) includes a limiting bump (231). When the triangular tongue (21) is in a state of extending out of the lock case (100), the lower end of the first linkage piece (22) abuts against the limiting bump (231) to limit the movement of the second linkage piece (23). The upper end of the pull rod frame (13) abuts against the second linkage piece (23) and can drive the second linkage piece (23) to move. A second limiting column (109) is further provided on the lock case (100) above the sixth pin shaft (106). One end of the first torsion spring (6) abuts against the upper side wall of the lock case (100), and the other end is connected to the triangular tongue (21). One end of the second torsion spring (7) is connected to the second linkage piece (23), and the other end abuts against the second limiting column (109).