Handle lock convenient for back locking operation and used for portal

Abstract

A portal handle lock facilitating back locking operation comprises an outer door seat installed outside a door and an inner door seat installed inside the door, an outer handle is installed on the outer door seat in a rotating mode, an inner handle is installed on the inner door seat in a rotating mode, the outer handle and the inner handle are connected through a square rod, the square rod is connected with a lock cylinder, and the lock cylinder is connected with the inner door seat in a rotating mode. A counter locking mechanism is arranged between the outer door seat and the outer handle, and the counter locking mechanism can lock the outer handle and prevent the outer handle from rotating; the counter locking mechanism is connected with a counter locking seat arranged in the inner door seat through a counter locking piece, a driving disc is arranged on the counter locking seat, and a driving shaft deviating from the rotating circle center of the driving disc is arranged on the driving disc. A back locking groove is formed in the inner handle, a back locking handle is installed in the back locking groove in a sliding mode, a driving groove is formed in the back locking handle, the driving shaft is sleeved with the driving groove, a user pushes the back locking handle to slide, the driving disc and the back locking piece are pushed to rotate through the driving groove and the driving shaft, and back locking operation is achieved.

Description

Technical Field

[0001] This utility model relates to a door lock, specifically a door handle lock that is easy to lock from the inside. Background Technology

[0002] Existing door handle locks typically consist of an exterior handle and an interior handle, connected by a square rod that drives the lock cylinder for locking and unlocking operations. To enhance security, many handle locks are designed with a deadbolt function, allowing users to lock the handle by operating the deadbolt mechanism, thus preventing unauthorized opening from the outside.

[0003] However, existing deadbolt mechanisms have some shortcomings. Common deadbolt mechanisms often use a knob, typically located on the end face of the handle lock. To unlock or deadbolt, the user must first rotate the knob to switch the lock to the unlocked or deadbolted state before turning the handle to open or close the door. This design forces the user to perform multiple hand gestures during the unlocking process: first rotating the knob to unlock, then turning the handle to open. This not only increases the complexity of the operation but may also reduce efficiency due to the hand gesture switching. Especially in emergencies, such as when a quick escape is needed, this can delay unlocking time and cause inconvenience to the user. Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a door handle lock that can effectively simplify the deadbolt operation process, improve the convenience and intuitiveness of operation, and ensure the stability and security of the lock in various usage scenarios.

[0005] The purpose of this utility model is achieved through the following means: a door handle lock that is easy to lock, comprising an outer door seat installed outside the door, an outer handle rotatably installed on the outer door seat, and an inner door seat installed inside the door, an inner handle rotatably installed on the inner door seat, the outer handle and the inner handle being connected by a square rod, the square rod being connected to the lock cylinder, the outer handle and the inner handle driving the lock cylinder to move through the square rod to open the door, and a deadbolt mechanism being provided between the outer door seat and the outer handle, the deadbolt mechanism being able to lock the outer handle to prevent it from rotating;

[0006] The aforementioned anti-locking mechanism is connected to an anti-locking seat located inside the inner door seat via an anti-locking plate. The anti-locking seat is provided with a drive disc, and the drive disc is provided with a drive shaft offset from its rotation center.

[0007] The inner handle is provided with a deadbolt groove, and a deadbolt handle is slidably installed in the deadbolt groove. The deadbolt handle is provided with a drive groove, which is fitted onto a drive shaft. When the user pushes the deadbolt handle to slide, the drive groove and drive shaft drive the drive disc and deadbolt plate to rotate, thereby realizing the deadbolt operation.

[0008] Furthermore: the inner handle is provided with an operating groove on the inner side of the door body, the operating groove is connected to the deadbolt groove, and the deadbolt handle is provided with a drive part extending into the operating groove, the drive part protruding from the operating groove.

[0009] Furthermore, the drive disc is also provided with a limit baffle, which is located on one side of the drive shaft. When the drive disc rotates, the two ends of the limit baffle contact the side wall of the anti-lock handle to limit the maximum rotation angle of the drive disc.

[0010] Furthermore, the limiting baffle is arranged in an arc-shaped long waist with the rotation center of the drive disc as the center.

[0011] Furthermore, a central shaft is provided at the center point of the drive disk, and a central hole is provided on the inner handle, with the central shaft inserted into the central hole.

[0012] Furthermore, the central shaft, drive shaft, and limiting baffle are disposed on the same end face of the drive disk and are integrally formed with the drive disk.

[0013] Furthermore: the aforementioned deadbolt mechanism includes a deadbolt sleeve rotatably installed in the outer door seat, the deadbolt sleeve being connected to the square rod and the outer handle, and the outer handle driving the square rod to rotate through the deadbolt sleeve.

[0014] Furthermore, the aforementioned anti-locking mechanism also includes an anti-locking push seat rotatably installed inside the anti-locking sleeve. The cylindrical surface of the anti-locking push seat is recessed with an arc-shaped inclined push groove, and an anti-locking ball is installed in the inclined push groove. A guide groove is provided through the cylindrical surface of the anti-locking sleeve, and a locking groove is provided on the outer door seat. When the anti-locking push seat rotates, the inclined push groove pushes the anti-locking ball to move along the guide groove, so that part of the anti-locking ball passes through the guide groove and enters the locking groove, locking the relative rotation between the anti-locking sleeve and the outer door seat, thereby achieving anti-locking.

[0015] Furthermore: the square rod has a hollow interior forming a through hole, and the anti-locking plate is fitted inside the through hole. One end of the anti-locking plate is connected to the anti-locking push seat, and the other end is connected to the anti-locking seat.

[0016] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0017] 2. Traditional lever handle locks typically require users to first rotate the knob to unlock and then turn the handle to open the door. This invention, however, by incorporating a deadbolt groove and a sliding deadbolt handle within the inner handle, allows users to simply push the deadbolt handle while holding the inner handle. The engagement of the drive groove and drive shaft disengages the deadbolt and drives the lock cylinder to open the door, completing the operation in one step.

[0018] 3. This single-handed, single-action operation method significantly simplifies the door opening process, avoids the cumbersome multi-step operation in traditional designs, and greatly improves the convenience and efficiency of use.

[0019] 4. In emergencies such as fires and earthquakes, users need to quickly open the door to escape. This utility model allows users to quickly unlock the door and open it while holding the inner handle, avoiding the time delay caused by unlocking first and then opening the door in traditional designs, thus greatly improving safety in emergency situations.

[0020] 6. The sliding design of the deadbolt handle is intuitive and easy to understand. In an emergency, users do not need to think about complicated unlocking steps, reducing the possibility of operational errors due to panic.

[0021] 7. This utility model naturally combines the sliding operation of the deadbolt handle with the gripping action of the inner handle, allowing the user to push the deadbolt handle to unlock while holding the inner handle. This design conforms to the natural movement habits of the human body and reduces the complexity of hand movements.

[0022] 8. The operation process does not require significant adjustment of wrist posture or forceful rotation, reducing hand fatigue and improving overall comfort and user experience. Attached Figure Description

[0023] Figure 1 This is a diagram showing the final assembly and usage effect of this utility model.

[0024] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0025] Figure 3 This is an exploded view of the structure of this utility model.

[0026] Figure 4 This is a schematic diagram of the inner handle structure in this utility model.

[0027] Figure 5 This is a diagram illustrating the assembly and use of the deadbolt handle and drive disc in this utility model.

[0028] Figure 6 This is an exploded view of the deadbolt handle and drive disc in this utility model.

[0029] Figure 7-9 This is an exploded view of the locking mechanism in this utility model. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings. A door handle lock for easy deadbolt operation includes an outer door seat 1 installed outside the door, on which an outer handle 2 is rotatably mounted; and an inner door seat 3 installed inside the door, on which an inner handle 4 is rotatably mounted. The outer handle 2 and the inner handle 4 are connected by a square rod 5, which is connected to a lock cylinder. The outer handle 2 and the inner handle 4 drive the lock cylinder to move via the square rod 5, thereby opening the door. A deadbolt mechanism is provided between the outer door seat 1 and the outer handle 2, which can lock the outer handle 2 to prevent its rotation; the deadbolt mechanism... The locking mechanism is connected to the anti-locking seat 7 located in the inner door seat 3 via the anti-locking plate 6. The anti-locking seat 7 is provided with a drive disc 71, and the drive disc 71 is provided with a drive shaft 72 offset from its rotation center. The inner handle 4 is provided with an anti-locking groove 41, and an anti-locking handle 8 is slidably installed in the anti-locking groove 41. The anti-locking handle 8 is provided with a drive groove 81, which is fitted onto the drive shaft 72. When the user pushes the anti-locking handle 8 to slide, the drive groove 81 and the drive shaft 72 drive the drive disc 71 and the anti-locking plate 6 to rotate, thereby realizing the anti-locking operation.

[0031] In use, the user pushes the deadbolt handle 8 along the length of the deadbolt groove 41. The drive groove 81 on the deadbolt handle 8 is fitted onto the drive shaft 72. Since the drive shaft 72 is offset from the rotation center of the drive disc 71, when the deadbolt handle 8 slides, the drive groove 81 applies a thrust to the drive shaft 72, causing the drive disc 71 to rotate around its rotation center. The rotation of the drive disc 71 drives the deadbolt seat 7 connected to it, and then transmits the rotational force to the deadbolt mechanism through the deadbolt plate 6, ultimately locking the outer handle 2 and preventing its rotation, thereby realizing the deadbolt function.

[0032] Compared to traditional technologies, in this case, users can lock the lock simply by pushing the deadbolt handle 8, eliminating the need for complex actions such as rotating knobs, making the operation intuitive and efficient. Furthermore, the design that converts sliding motion into rotational motion breaks through the traditional deadbolt method of lever locks, improving the user experience. In addition, the deadbolt operation is completed quickly, facilitating rapid adjustment of the lock's status in emergency situations.

[0033] In one embodiment: the inner handle 4 is provided with an operation groove 42 on the inner side of the door body, the operation groove 42 is connected to the deadbolt groove 41, and the deadbolt handle 8 is provided with a drive part 82 extending into the operation groove 42, the drive part 82 protruding from the operation groove 42.

[0034] In this case, the operating groove 42 on the inner handle 4 is connected to the deadbolt groove 41. The drive part 82 of the deadbolt handle 8 extends from the deadbolt groove 41 to the operating groove 42 and protrudes outside the operating groove 42. The user pushes the drive part 82 in the operating groove 42 with his finger, causing the deadbolt handle 8 to slide along the deadbolt groove 41. The cooperation between the drive groove 81 and the drive shaft 72 drives the drive disc 71 and the deadbolt plate 6 to rotate, thereby realizing the deadbolt operation.

[0035] Compared to traditional technologies, this drive unit 82 protrudes from the operation slot 42, making it easier for users to quickly locate and operate, thus improving ease of use. Simultaneously, the operation slot 42 is located on the inner side of the inner handle 4, allowing users to naturally access the drive unit 82 while gripping the inner handle, conforming to hand movement habits.

[0036] In one embodiment, the drive disc 71 is further provided with a limit baffle 73, which is located on one side of the drive shaft 72. When the drive disc 71 rotates, the two ends of the limit baffle 73 contact the side wall of the anti-lock handle 8 to limit the maximum rotation angle of the drive disc 71.

[0037] In actual use, when the drive disc 71 is pushed and rotated by the deadbolt handle 8, the limiting baffle 73 on it rotates together with the drive disc 71. When it rotates to a certain angle, the two ends of the limiting baffle 73 will contact the side wall of the deadbolt handle 8, preventing the drive disc 71 from continuing to rotate, thereby limiting its maximum rotation range and ensuring that the deadbolt mechanism locks or unlocks at the preset position. Therefore, the limiting baffle 73 prevents the drive disc 71 from rotating excessively, avoiding damage to the mechanism or misoperation. In addition, by limiting the rotation angle, dead-angle locking is avoided, ensuring the precise action of the deadbolt mechanism and enhancing the stability of the lock.

[0038] In one embodiment, the limiting baffle 73 is arranged in an arc-shaped, elongated form with the rotation center of the drive disc 71 as its center. When the drive disc 71 rotates, the limiting baffle 73 moves along an arc trajectory, with its two ends contacting the side wall of the deadbolt handle 8 at a specific angle, thus limiting the rotation range. The arc shape ensures smooth contact with the deadbolt handle 8 during rotation, avoiding abrupt changes or jamming.

[0039] The rounded, elongated waist design matches the rotational motion, resulting in a smooth contact process and improved handling. Furthermore, this design reduces impact during stop operations, extending the lifespan of the components.

[0040] In one embodiment, a central shaft 74 is provided at the center point of the drive disk 71, and a central hole is provided on the inner handle 4, with the central shaft 74 inserted into the central hole.

[0041] During operation, the central shaft 74 of the drive disc 71 is inserted into the central hole of the inner handle 4, so that the drive disc 71 is fixed on the inner handle 4 with the central shaft 74 as the center of rotation. When the deadbolt handle 8 pushes the drive shaft 72, the drive disc 71 rotates around the central shaft 74, driving the deadbolt plate 6 to achieve the deadbolt operation.

[0042] In this embodiment, the fit between the central shaft 74 and the central hole ensures that the drive disk 71 is securely installed and not easily shifted during rotation. Meanwhile, the insert design simplifies the assembly process and improves production efficiency.

[0043] In one embodiment, the central shaft 74, drive shaft 72, and limiting baffle 73 are disposed on the same end face of the drive disk 71 and integrally formed with the drive disk 71. The central shaft 74, drive shaft 72, and limiting baffle 73 are all located on the same end face of the drive disk 71 and are manufactured using an integral molding process. When the locking handle 8 pushes the drive shaft 72, the drive disk 71 rotates around the central shaft 74, and the limiting baffle 73 simultaneously restricts the rotation angle; the entire process is completed by the integrally formed structure. The integral molding enhances the integrity of the drive disk 71, reduces the risk of loosening between components, and simultaneously reduces the number of parts and assembly steps, thereby lowering production costs.

[0044] In one embodiment, the deadbolt mechanism includes a deadbolt sleeve 9 rotatably installed in the outer door seat 1. The deadbolt sleeve 9 is connected to the square rod 5 and the outer handle 2. The outer handle 2 drives the square rod 5 to rotate through the deadbolt sleeve 9.

[0045] The deadbolt sleeve 9 is rotatably installed inside the outer door seat 1 and connected to the square rod 5 and the outer handle 2. During normal door opening, the outer handle 2 rotates, driving the deadbolt sleeve 9, which in turn drives the square rod 5 to rotate, thereby driving the lock cylinder to open the door. When the deadbolt mechanism is activated, the deadbolt sleeve 9 is locked, preventing the outer handle 2 from rotating.

[0046] In one embodiment, the anti-locking mechanism further includes an anti-locking push seat 91 rotatably installed inside the anti-locking sleeve 9. The cylindrical surface of the anti-locking push seat 91 is recessed with an arc-shaped inclined push groove 92, and an anti-locking ball 93 is installed in the inclined push groove 92. A guide groove 94 is provided through the cylindrical surface of the anti-locking sleeve 9, and a locking groove 11 is provided on the outer door seat 1. Under the push of the inclined push groove 92, the anti-locking ball 93 partially passes through the guide groove 94 and enters the locking groove 11, locking the relative rotation between the anti-locking sleeve 9 and the outer door seat 1, thereby achieving anti-locking.

[0047] During the deadbolt operation, the deadbolt pusher 91 rotates within the deadbolt sleeve 9, and its inclined push groove 92 pushes the deadbolt ball 93 along the guide groove 94 of the deadbolt sleeve 9. When the deadbolt pusher 91 rotates to a specific position, the deadbolt ball 93 is pushed to the point where the guide groove 94 coincides with the locking groove 11 of the outer door seat 1, partially entering the locking groove 11, locking the relative rotation of the deadbolt sleeve 9 and the outer door seat 1, thereby achieving deadbolt locking. The locking mechanism of the deadbolt ball 93 is reliable, ensuring that the outer handle 2 cannot rotate when deadbolted. When unlocking, the deadbolt ball 93 loses its support, and when the handle is rotated, it can be pushed back into the inclined push groove, achieving unlocking.

[0048] In one embodiment, the square rod 5 is hollow to form a through hole 51, and the anti-locking plate 6 is fitted into the through hole 51. One end of the anti-locking plate 6 is connected to the anti-locking push seat 91, and the other end is connected to the anti-locking seat 7.

[0049] The through hole 51 inside the square rod 5 accommodates the anti-locking plate 6. One end of the anti-locking plate 6 is connected to the anti-locking push seat 91, and the other end is connected to the anti-locking seat 7. When the anti-locking handle 8 pushes the drive disc 71 to rotate, the anti-locking seat 7 drives the anti-locking plate 6 to rotate. The anti-locking plate 6 transmits the rotation to the anti-locking push seat 91 through the through hole 51, triggering the locking action of the anti-locking ball 93.

[0050] In this embodiment, the anti-locking plate 6 is placed inside the through hole 51 of the square rod 5, saving space and resulting in a compact structure. Simultaneously, the anti-locking plate 6 connects the two ends, ensuring the reliability of the action transmission.

[0051] In summary, this utility model's door handle lock, through its innovative deadbolt mechanism design, allows the user to lock and close the door by pushing the deadbolt handle 8 while holding the inner handle 4, or to unlock and open the door. The entire process integrates deadbolt release and door opening into a single action, making it simple and efficient. Furthermore, this single-handed, single-action operation significantly simplifies the door opening and closing process, avoiding the cumbersome multi-step operations of traditional designs, and greatly improving ease of use and efficiency. Therefore, it can be widely promoted and used.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A door handle lock for easy deadbolt operation, comprising an outer door seat (1) installed outside the door, an outer handle (2) rotatably mounted on the outer door seat (1), and an inner door seat (3) installed inside the door, an inner handle (4) rotatably mounted on the inner door seat (3), wherein the outer handle (2) and the inner handle (4) are connected by a square rod (5), the square rod (5) is connected to the lock cylinder, and the outer handle (2) and the inner handle (4) drive the lock cylinder to move through the square rod (5) to open the door, characterized in that: A locking mechanism is provided between the outer door seat (1) and the outer handle (2), which can lock the outer handle (2) to prevent it from rotating; The anti-locking mechanism is connected to the anti-locking seat (7) provided in the inner door seat (3) via the anti-locking plate (6). The anti-locking seat (7) is provided with a drive disc (71), and the drive disc (71) is provided with a drive shaft (72) that is offset from its rotation center. The inner handle (4) is provided with a locking groove (41), and a locking handle (8) is slidably installed in the locking groove (41). A drive groove (81) is provided on the locking handle (8), and the drive groove (81) is fitted on the drive shaft (72). When the user pushes the locking handle (8) to slide, the drive disk (71) and the locking plate (6) are driven to rotate through the drive groove (81) and the drive shaft (72) to realize the locking operation.

2. A lever handle lock for doors facilitating reverse operation according to claim 1 wherein: The inner handle (4) is provided with an operation groove (42) on the inner side of the door body. The operation groove (42) is connected to the deadbolt groove (41). The deadbolt handle (8) is provided with a drive part (82) extending into the operation groove (42). The drive part (82) protrudes from the operation groove (42).

3. A lever handle lock for doors facilitating reverse operation as defined in claim 1, characterized in that: The drive disc (71) is also provided with a limit baffle (73). The limit baffle (73) is located on one side of the drive shaft (72). When the drive disc (71) rotates, the two ends of the limit baffle (73) contact the side wall of the anti-lock handle (8) to limit the maximum rotation angle of the drive disc (71).

4. A lever handle lock for doors facilitating reverse operation according to claim 3 wherein: The limiting baffle (73) is arranged in an arc-shaped long waist with the rotation center of the drive disc (71) as the center.

5. A lever handle lock for doors facilitating reverse operation according to claim 3 wherein: A central shaft (74) is also provided at the center point of the drive disk (71), and a central hole is provided on the inner handle (4), with the central shaft (74) inserted into the central hole.

6. A lever handle lock for doors facilitating reverse operation according to claim 5 wherein: The central shaft (74), drive shaft (72) and limiting baffle (73) are located on the same end face of the drive disk (71) and are integrally formed with the drive disk (71).

7. A lever handle lock for doors facilitating reverse operation as defined in claim 1, characterized in that: The locking mechanism includes a locking sleeve (9) that is rotatably installed in the outer door seat (1). The locking sleeve (9) is connected to the square rod (5) and the outer handle (2). The outer handle (2) drives the square rod (5) to rotate through the locking sleeve (9).

8. A lever handle lock for a door for facilitating a reverse operation according to claim 7, characterized in that: The locking mechanism further includes a locking push seat (91) rotatably installed inside the locking sleeve (9). The cylindrical surface of the locking push seat (91) is recessed with an arc-shaped inclined push groove (92), and a locking ball (93) is installed in the inclined push groove (92). A guide groove (94) is provided through the cylindrical surface of the locking sleeve (9), and a locking groove (11) is provided on the outer door seat (1). When the locking push seat (91) rotates, the inclined push groove (92) pushes the locking ball (93) to move along the guide groove (94), so that part of the locking ball (93) passes through the guide groove (94) and enters the locking groove (11), locking the relative rotation between the locking sleeve (9) and the outer door seat (1) to achieve locking.

9. A lever handle lock for a door facilitating a reverse action operation according to claim 8, characterized in that: The square rod (5) has a hollow interior forming a through hole (51). The anti-locking plate (6) is fitted inside the through hole (51). One end of the anti-locking plate (6) is connected to the anti-locking push seat (91), and the other end is connected to the anti-locking seat (7).

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