Handle lock with lock cylinder capable of being replaced quickly

Abstract

The utility model provides a handle lock with a lock cylinder capable of being rapidly replaced. The handle lock comprises a handle, the lock cylinder, a lock cylinder fixing ring, an elastic piece, an elastic piece fixing ring, an elastic limiting pin and a handle connecting base. A lock cylinder mounting groove is formed in the handle, and the lock cylinder is mounted in the lock cylinder mounting groove, so that the lock cylinder and the handle are relatively fixed in the rotating direction; the lock cylinder fixing ring is fixedly connected to an opening in one end of the lock cylinder mounting groove, so that the lock cylinder is axially fixed in the lock cylinder mounting groove; a limiting ring protruding in the radial direction is arranged on the outer side face of the middle of the handle connecting base, and the front end of the handle connecting base penetrates through the lock cylinder fixing ring, so that the lock cylinder fixing ring is clamped between the limiting ring of the handle connecting base and the elastic limiting pin. According to the handle lock with the lock cylinder capable of being rapidly replaced, rapid replacement of the lock cylinder is achieved through a simple structure, the lock cylinder replacement process is easy and convenient to operate, and high safety is achieved.

Description

Technical Field

[0001] This utility model relates to the field of door locks, specifically to a handle lock with a quick-change lock cylinder. Background Technology

[0002] Handle locks are a common type of lock. Turning the handle activates an internal linkage mechanism, which retracts the bolt to open the door. Handle locks typically have two handles: the inner handle contains a deadbolt mechanism for locking, while the outer handle contains a lock cylinder with a keyhole. Inserting a key into the keyhole and turning the lock cylinder disengages the deadbolt.

[0003] During the use of handle locks, it is often necessary to replace the lock cylinder to enhance security. While various replaceable lock cylinder structures exist in current technology, most are complex, some even requiring modifications to the lock's internal structure, and security is not guaranteed. More importantly, existing replaceable lock cylinder handle lock structures cannot be applied to more integrated smart locks, and their structures require optimization and improvement. Utility Model Content

[0004] In view of this, it is necessary to provide a handle lock that allows for quick replacement of the lock cylinder, addressing the problems existing in the prior art, and achieving quick replacement of the lock cylinder through a simple structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A handle lock with a quick-change lock cylinder includes a handle, a lock cylinder, a lock cylinder retaining ring, a spring, a spring retaining ring, a resilient limiting pin, and a handle connecting seat;

[0007] The handle is provided with a lock cylinder mounting groove, and the lock cylinder is installed in the lock cylinder mounting groove, so that the lock cylinder and the handle are relatively fixed in the rotation direction; the lock cylinder fixing ring is fixedly connected to the opening at one end of the lock cylinder mounting groove to fix the lock cylinder axially in the lock cylinder mounting groove.

[0008] The handle connector is provided with a handle connecting groove at the center of the front end of the handle connector. The spring retaining ring is nested in the handle connecting groove, and the spring is nested and connected in the spring retaining ring. The elastic limiting pin passes through the spring retaining ring and the handle connector in the radial direction. The inner end of the elastic limiting pin is connected to the spring. The spring is used to elastically push the elastic limiting pin outward in the radial direction, so that the outer end of the elastic limiting pin extends outward from the outer side of the front end of the handle connector.

[0009] The outer side of the middle part of the handle connector is provided with a radially protruding limiting ring. The front end of the handle connector passes through the lock cylinder fixing ring, so that the lock cylinder fixing ring is stuck between the limiting ring and the elastic limiting pin of the handle connector.

[0010] The handle has an unlocking through hole on the side of the lock cylinder mounting groove. The position of the unlocking through hole corresponds to the elastic limit pin, which is used to allow external tools to be inserted to press the elastic limit pin.

[0011] Furthermore, the lock cylinder mounting groove, the lock cylinder fixing ring, and the handle connecting seat are respectively provided with radially penetrating fixing holes at the same position on their sides. A fixing pin passes through the fixing holes on the sides of the lock cylinder mounting groove, the lock cylinder fixing ring, and the handle connecting seat from the outside to the inside in sequence to fix the three together.

[0012] Furthermore, the lock cylinder is a rotary telescopic lock cylinder, with a keyhole for inserting a key at one end and a rotary push rod at the other end. The rotary push rod has radially protruding protrusions on opposite sides at its end, making the cross-section of the rotary push rod end elongated.

[0013] The end of the rotary push rod extends axially into the spring retaining ring and is enclosed within the spring. When the lock cylinder is in the locked state, the protrusion at the end of the rotary push rod abuts against the spring at the inner end of the elastic limiting pin, preventing the elastic limiting pin from moving radially. When the lock cylinder is in the unlocked state, the rotary push rod rotates at a certain angle to remove the protrusion from the spring at the inner end of the elastic limiting pin, allowing the elastic limiting pin to move radially.

[0014] Furthermore, there are two elastic limiting pins, which are respectively disposed on the radially opposite sides of the spring fixing ring and the handle connecting seat; the inner ends of the two elastic limiting pins are respectively connected to the spring, and the outer ends of the two elastic limiting pins extend elastically from the radially opposite sides of the front outer side of the handle connecting seat.

[0015] This invention provides a handle lock with a quick-change lock cylinder. Its simple structure enables rapid lock cylinder replacement, facilitating production and assembly. During lock cylinder replacement, the panel and the lock body fixed inside the door panel do not need to be removed. The lock cylinder replacement process is simple and convenient, offers high security, and greatly enhances the user experience. Attached Figure Description

[0016] Figure 1 This is an exploded view of a handle lock with a quick-change lock cylinder provided in an embodiment of this utility model;

[0017] Figure 2 This is a connection structure diagram of the handle, lock cylinder, and lock cylinder fixing ring in an embodiment of this utility model;

[0018] Figure 3 This is an external structural diagram of the handle in an embodiment of this utility model;

[0019] Figure 4This is a cross-sectional view of an embodiment of the present invention in the locked state;

[0020] Figure 5 This is a cross-sectional view of an embodiment of the present invention in the unlocked state. Detailed Implementation

[0021] The technical solution of this utility model will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 5 As shown in the figure, the present invention provides a handle lock with quick lock cylinder replacement, including a handle 1, a lock cylinder 2, a lock cylinder fixing ring 3, a spring 5, a spring fixing ring 4, an elastic limiting pin 6, and a handle connecting seat 7.

[0023] The handle 1 is provided with a lock cylinder mounting groove, and the lock cylinder 2 is installed in the lock cylinder mounting groove, so that the lock cylinder 2 and the handle 1 are relatively fixed in the rotation direction; the lock cylinder fixing ring 3 is fixedly connected to the opening at one end of the lock cylinder mounting groove to fix the lock cylinder 2 axially in the lock cylinder mounting groove.

[0024] The handle connecting seat 7 has a handle connecting groove 70 at the center of its front end. The spring retaining ring 4 is nested in the handle connecting groove 70, and the spring 5 is nested in the spring retaining ring 4. The elastic limiting pin 6 passes through the spring retaining ring 4 and the handle connecting seat 7 radially. The inner end of the elastic limiting pin 6 is connected to the spring 5. The spring 5 is used to elastically push the elastic limiting pin 6 outward radially, so that the outer end of the elastic limiting pin 6 extends elastically from the outer side of the front end of the handle connecting seat 7.

[0025] The outer side of the middle part of the handle connecting seat 7 is provided with a radially protruding limiting ring 71. The front end of the handle connecting seat 7 passes through the lock cylinder fixing ring 3, so that the lock cylinder fixing ring 3 is stuck between the limiting ring 71 and the elastic limiting pin 6 of the handle connecting seat 7.

[0026] Furthermore, the lock cylinder mounting groove, the lock cylinder fixing ring 3, and the handle connecting seat 7 are respectively provided with radially penetrating fixing holes at the same position on their sides. A fixing pin 8 passes through the fixing holes on the sides of the lock cylinder mounting groove, the lock cylinder fixing ring 3, and the handle connecting seat 7 from the outside to the inside in order to fix the three together.

[0027] Furthermore, the lock cylinder 2 is a rotary telescopic lock cylinder, with a keyhole for inserting a key at one end and a rotary push rod 20 at the other end. Figure 2 As shown, the rotating push rod 20 has radially protruding protrusions on both sides of its end, making the cross-section of the end of the rotating push rod 20 elongated.

[0028] Combination Figure 4 and Figure 5As shown, the end of the rotating push rod 20 extends axially into the spring retaining ring 4 and is enclosed within the spring 5. When the lock cylinder 2 is in the locked state, the protrusion at the end of the rotating push rod 20 abuts against the spring 5 at the inner end of the elastic limiting pin 6, preventing the elastic limiting pin 6 from moving elastically in the radial direction. When the lock cylinder 2 is in the unlocked state, the rotating push rod 20 rotates at a certain angle to remove the protrusion from the spring 5 at the inner end of the elastic limiting pin 6, allowing the elastic limiting pin 6 to move elastically in the radial direction.

[0029] Combination Figure 3 As shown, the lock cylinder mounting groove on the handle 1 is provided with an unlocking through hole 10 on its side. The position of the unlocking through hole 10 corresponds to the elastic limiting pin 6, which is used to allow external tools to be inserted to press the elastic limiting pin 6.

[0030] As an improvement, this embodiment provides two elastic limiting pins 6, which are respectively located on the radially opposite sides of the spring retaining ring 4 and the handle connecting seat 7. Specifically, the inner ends of the two elastic limiting pins 6 are connected to the spring 5, and the outer ends of the two elastic limiting pins 6 extend elastically from the radially opposite sides of the outer front side of the handle connecting seat 7. The purpose of providing two elastic limiting pins 6 is mainly to facilitate changing the installation direction of the handle to meet the needs of different door opening directions.

[0031] Combination Figure 4 and Figure 5 As shown, the working principle of this utility model embodiment is as follows:

[0032] When in Figure 4 In the normally locked state shown, the protrusion at the end of the rotating push rod 20 abuts against the spring piece 5 at the inner end of the elastic limiting pin 6, preventing the elastic limiting pin 6 from moving radially. This causes the lock cylinder retaining ring 3 to be stuck between the limiting ring 71 of the handle connecting seat 7 and the elastic limiting pin 6, preventing axial movement; thus, the handle 1 and the handle connecting seat 7 cannot be separated. Furthermore, the handle 1 and the handle connecting seat 7 are further secured together by the fixing pin 8.

[0033] When in Figure 5In the unlocked state shown, inserting the key into the keyhole of the lock cylinder 2 and rotating the key causes the rotating push rod 20 of the lock cylinder 2 to extend axially, pushing the lock body (not shown in the figure) inside the door to unlock. Simultaneously, the rotating push rod 20 of the lock cylinder 2 rotates 90° to remove the protrusion from the spring piece 5 at the inner end of the elastic limiting pin 6, allowing the elastic limiting pin 6 to move radially elastically. At this point, by removing the fixing pin 8 and using a thin needle-like tool inserted into the unlocking through hole 10 to press the elastic limiting pin 6, the axial limiting effect of the elastic limiting pin 6 on the lock cylinder fixing ring 3 can be further released. Then, the handle 1 can be removed from the handle connecting seat 7, and the lock cylinder 2 can be quickly replaced simply by removing the lock cylinder fixing ring 3.

[0034] This invention provides a handle lock with a quick-change lock cylinder. Its simple structure enables rapid lock cylinder replacement, facilitating production and assembly. During lock cylinder replacement, the panel and the lock body fixed inside the door panel do not need to be removed. The lock cylinder replacement process is simple and convenient, offers high security, and greatly enhances the user experience.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A handle lock with a quick-change lock core, characterized in that: It includes a handle, a lock core, a lock core fixing ring, a spring, a spring fixing ring, an elastic limit pin and a handle connecting seat; The handle is provided with a lock core installation groove, and the lock core is installed in the lock core installation groove, so that the lock core and the handle are relatively fixed in the rotation direction; the lock core fixing ring is fixedly connected to the opening at one end of the lock core installation groove to axially fix the lock core in the lock core installation groove; A handle connection groove is provided at the axis center of the front end of the handle connection seat, the spring sheet fixing ring is nested in the handle connection groove, and the spring sheet is nested and connected in the spring sheet fixing ring; the elastic limit pin radially penetrates the spring sheet fixing ring and the handle connection seat, the inner end of the elastic limit pin is connected to the spring sheet, and the spring sheet is used to elastically push the elastic limit pin radially outward, so that the outer end of the elastic limit pin elastically extends from the outer side surface of the front end of the handle connection seat; A radially protruding limiting ring is provided on the outer side surface of the middle part of the handle connecting seat, and the front end of the handle connecting seat passes through the lock core fixing ring, so that the lock core fixing ring is stuck between the limiting ring of the handle connecting seat and the elastic limiting pin; An unlocking through hole is provided on the side of the lock core installation groove on the handle, and the position of the unlocking through hole corresponds to the elastic limiting pin, which is used for an external tool to extend into to press the elastic limiting pin.

2. The handle lock with a quick-change lock cylinder according to claim 1, characterized in that: The lock core installation groove, lock core fixing ring and handle connecting seat are respectively provided with fixing holes extending radially therethrough at the same position on the side surfaces thereof, and a fixing pin passes through the lock core installation groove, lock core fixing ring and the fixing holes on the side surfaces of the handle connecting seat in sequence from the outside to the inside to fix the three together.

3. The handle lock with a quick-change lock cylinder according to claim 1, characterized in that: The lock core is a rotary telescopic lock core, one end of the lock core is provided with a keyhole for inserting a key, and the other end of the lock core is provided with a rotary push rod, and opposite sides of the end of the rotary push rod have radially protruding protrusions, so that the cross section of the end of the rotary push rod is narrow and long; The end of the rotating push rod extends axially into the spring fixing ring and is covered by the spring; when the lock core is in a locked state, the protrusion at the end of the rotating push rod abuts against the spring at the inner end of the elastic limit pin, so that the elastic limit pin cannot move elastically in the radial direction; when the lock core is in an unlocked state, the rotating push rod rotates a certain angle to remove the protrusion from the spring at the inner end of the elastic limit pin, so that the elastic limit pin can move elastically in the radial direction.

4. The handle lock with a quick-change lock cylinder according to claim 1, characterized in that: There are two elastic limit pins, which are respectively arranged on the radially opposite sides of the spring fixing ring and the handle connecting seat; the inner ends of the two elastic limit pins are respectively connected to the springs, and the outer ends of the two elastic limit pins are elastically extended from the radially opposite sides of the outer side surface of the front end of the handle connecting seat.

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