A door lock cylinder

Abstract

The utility model relates to door lock cylinder technical field especially, it is a kind of door lock cylinder, solve the problem that multiple keys need additional space to store in prior art, need to replace lock to prevent stranger to open lock after losing key.A kind of door lock cylinder, including door panel, the surface of door panel is equipped with lock cylinder by mounting mechanism, the surface of lock cylinder is equipped with accommodating groove, the inside of accommodating groove is slidably connected with several separate rings, the inside of separate ring is equipped with locking mechanism, the top of lock cylinder is fixedly connected with two sliding blocks, one end of lock cylinder is rotatably connected with ring, the other end of lock cylinder is rotatably connected with bottom ring, the surface of ring is equipped with key.The utility model can open multiple door locks using a key, save the space where key is placed, and when key is lost, the position of separate ring in lock cylinder can be changed to make previous key unable to open new door, additional door lock is not needed, prevent lock cylinder internal high temperature deformation to cause door unable to open.

Description

Technical Field

[0001] This utility model relates to the field of door lock cylinder technology, and in particular to a door lock cylinder. Background Technology

[0002] The lock cylinder is the main component that controls the opening of the lock; it is the heart of the lock and refers to the core part that works with the key to rotate and drive the bolt.

[0003] Chinese Patent Publication No. CN206487243U discloses a door lock cylinder, including a fixed base, a transmission mechanism, a lock cylinder mechanism, and a first lever located within the fixed base. Both the lock cylinder mechanism and the first lever cooperate with the transmission mechanism. The door lock cylinder provided by this utility model, through the transmission mechanism, changes the relative position of the keyhole and the lock face, which is beneficial to the aesthetic layout of the door lock, enhances the concealment of the mechanical unlocking method, and improves the security of the door lock.

[0004] In practical use, existing door lock cylinders often require multiple keys to open multiple locks. Multiple keys require extra space for storage, and most keys look the same. If a key is lost, the user needs to copy another key if a spare key is available; otherwise, the entire lock must be replaced to prevent unauthorized access. Utility Model Content

[0005] The purpose of this utility model is to provide a door lock cylinder that solves the problem in the prior art that multiple keys require extra space to store, and that the lock needs to be replaced after the key is lost to prevent strangers from opening the lock.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A door lock cylinder includes a door panel. A lock cylinder is mounted on the surface of the door panel via an installation mechanism. A receiving groove is formed on the surface of the lock cylinder. Several split rings are slidably connected inside the receiving groove. A locking mechanism is provided inside the split rings. Two sliders are fixedly connected to the top of the lock cylinder. A ferrule is rotatably connected to one end of the lock cylinder. A bottom ring is rotatably connected to the other end of the lock cylinder. A key is provided on the surface of the ferrule.

[0008] Preferably, the installation mechanism includes four installation tubes passing through the surface of the door panel. The four installation tubes are fixedly connected to two protective shells by bolts. A side shell is provided between the two protective shells. Two installation tubes pass through the inside of the side shell. Two fireproof plates are fixedly connected inside the protective shell. The other two installation tubes pass through the surface of the fireproof plates.

[0009] Preferably, the locking mechanism includes a core ring slidably connected to the surface of the split ring, a lifting column fixedly connected to the top of the split ring, and a split drive pin elastically connected to the bottom of the lifting column by a compression spring. The split drive pin is located inside the core ring.

[0010] Preferably, grooves are provided on both sides of the slider and both sides of the dividing ring, and a top cover is slidably connected between the two grooves.

[0011] Preferably, the key includes a main shaft passing through the surface of the ferrule, the surface of the main shaft is fitted with a plurality of T-shaped locking sleeves, the top of the plurality of locking sleeves is fixedly connected with locking teeth of different heights, and one end of the main shaft is threadedly connected with a handle.

[0012] Preferably, the side shell has a door lock box inside, and the lock cylinder passes through the surface of the door lock box.

[0013] This utility model has the following beneficial effects:

[0014] When a lock needs to be opened, the arrangement of the key sleeve can be changed according to the layout of the internal rings of the lock cylinder, so that the lock teeth on the sleeve can correspond to the sequence of the rings, thus allowing the key to open the lock cylinder. In subsequent use, one key can be used to open multiple locks, saving key storage space. Furthermore, if the key is lost, the position of the internal rings of the lock cylinder can be changed so that the previous key cannot open a new door, without the need to replace the lock. When using the lock cylinder, it can be fixed to the door panel with a protective shell and a side shell, and a fireproof plate is used to protect the inside of the lock cylinder from fire, which can block heat conduction and prevent the high temperature deformation inside the lock cylinder from causing the door to become unopenable. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Side view of the key;

[0018] Figure 3 for Figure 1 Side view of the central locking cylinder;

[0019] Figure 4 for Figure 3 A schematic diagram of the unfolded shape;

[0020] Figure 5 for Figure 4 Side view of the locking mechanism.

[0021] In the diagram: 1. Door panel; 2. Mounting mechanism; 3. Lock cylinder; 4. Receiving groove; 5. Split ring; 6. Locking mechanism; 7. Slider; 8. Insert ring; 9. Bottom ring; 10. Key; 11. Slide groove; 12. Top cover; 201. Mounting tube; 202. Bolt; 203. Protective shell; 204. Side shell; 205. Fireproof plate; 206. Door lock box; 601. Core ring; 602. Lifting column; 603. Compression spring; 604. Split drive pin; 101. Main shaft; 102. Lock sleeve; 103. Lock tooth; 104. Handle. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Reference Figure 1-5 A door lock cylinder includes a door panel 1. A lock cylinder 3 is mounted on the surface of the door panel 1 via a mounting mechanism 2. The lock cylinder 3 is fixed to the door panel 1 via the mounting mechanism 2, facilitating the closing and use of the door panel 1. A receiving groove 4 is formed on the surface of the lock cylinder 3. Several slidable rings 5 ​​are connected inside the receiving groove 4. When it is necessary to adjust and arrange the slids 5 on the lock cylinder 3, the split drive pin 604 can engage with the lock teeth 103, so that the lock cylinder 3 can engage with several lock teeth 103 on the same handle 104 to unlock. A locking mechanism 6 is provided inside the slid rings 5. The locking mechanism 6 can prevent the slid rings 5 ​​from being opened without using the corresponding lock teeth 103. The top of the lock cylinder 3 is fixedly connected to... Two sliders 7 are connected, which can restrict the top of the split ring 5. One end of the lock cylinder 3 is rotatably connected to a plug ring 8, which allows the key 10 to be easily inserted into the lock cylinder 3 to open the locking mechanism 6 inside the split ring 5. The other end of the lock cylinder 3 is rotatably connected to a bottom ring 9, which can cooperate with the plug ring 8 to block both ends of the lock cylinder 3, and rotates after the locking mechanism 6 is opened, thereby driving the internal structure of the door lock box 206 to open the door panel 1. The surface of the plug ring 8 is provided with a key 10. When it is necessary to open the locking mechanism 6 of the split ring 5 inside the lock cylinder 3, the key 10 needs to be inserted into the split ring 5 inside the lock cylinder 3 through the plug ring, and then the locking mechanism 6 is opened by rotation.

[0024] Furthermore, the installation mechanism 2 includes four installation tubes 201 passing through the surface of the door panel 1. The four installation tubes 201 are fixedly connected to two protective shells 203 by bolts 202. A side shell 204 is provided between the two protective shells 203. Two installation tubes 201 pass through the inside of the side shell 204. Two fireproof plates 205 are fixedly connected inside the protective shells 203. The other two installation tubes 201 pass through the surface of the fireproof plates 205. When the lock cylinder 3 needs to be installed on the door panel 1, a groove needs to be opened on the door panel 1 first. Then, the installation tubes 201 are inserted into the inside of the door panel 1. After that, the protective shells 203 and the side shells 204 are fixed to the installation tubes 201 by bolts 202. The fireproof plates 205 are also fixed to the door panel 1, which provides fire protection and heat insulation for the inside of the door panel 1. This can protect the internal structure of the lock cylinder 3, so that the lock cylinder 3 will not easily deform due to high temperature during use, affecting the opening and closing of the door panel 1.

[0025] Furthermore, the locking mechanism 6 includes a core ring 601 slidably connected to the surface of the split ring 5. A lifting column 602 is fixedly connected to the top of the split ring. The bottom of the lifting column 602 is elastically connected to a split drive pin 604 via a compression spring 603. The split drive pin 604 is located inside the core ring 601 and consists of two parts: an upper cylindrical block elastically connected to the compression spring 603, and an insertion pin below the cylindrical block. The insertion pin is confined inside the core ring and will not disengage. After the top of the insertion pin aligns with the outer side of the core ring 601, a force can be applied to rotate the core ring 601, causing the insertion pin to disengage from the cylindrical block. After resetting, removing the key 10 causes the compression spring to re-align the top of the insertion pin with the outer side of the core ring 601, restricting the core ring 601 from rotating. When it is necessary to open the locking mechanism 6, the locking teeth 103 of different heights on the key 10 will enter the interior of the core ring 601. The split drive pin 604 inside the core ring 601 is pressed upward, causing it to rise. The compression spring 603 applies force to the split drive pin 604 through the lifting column 602. This ensures that the rotation of the core ring 601 is restricted when the locking teeth 103 are not pressing the split drive pin 604, preventing the bottom ring 9 from moving and ensuring the lock cannot be opened. When the corresponding locking teeth 103 press, they apply force to the split drive pin 604, causing it to rise and align the top of the insertion pin with the outer side of the core ring 601, facilitating the rotation of the core ring 601. The split drive pin 604 is locked by the elasticity of the compression spring 603 and the lifting column 602. When it encounters the corresponding locking teeth 103, the lock can be easily opened. The height of the split drive pins 604 on different split rings 5 ​​is different, which is why different locking teeth 103 are needed to open them.

[0026] Furthermore, both sides of the slider 7 and both sides of the split ring 5 are provided with grooves 11, and a top cover 12 is slidably connected between the two grooves 11. When the split ring 5 needs to be used, after the adjustment of the split ring 5 is completed, the top cover 12 can be slid into the inside of the two grooves 11, and the position of the split ring 5 can be easily fixed by the slider 7, so that the split ring 5 is restricted inside the locking cylinder 3, ensuring the normal use of the split ring 5.

[0027] Furthermore, the key 10 includes a main shaft 101 passing through the surface of the insert ring 8. Several T-shaped locking sleeves 102 are fitted onto the surface of the main shaft 101. The tops of the locking sleeves 102 are fixedly connected to locking teeth 103 of different heights. A handle 104 is threaded onto one end of the main shaft 101. When the key 10 needs to be used, the arrangement order of the locking sleeves 102 needs to be adjusted according to the arrangement order of the internal rings 5 ​​of the lock cylinder 3. Then, the locking sleeves 102 are sequentially fitted onto the main shaft 101. One end has a block that can be inserted into the bottom ring 9 to drive the bottom ring 9 to rotate. After the lock sleeve 102 is fitted onto the main shaft 101, it is threaded to one end of the main shaft 101 through the handle 104 to form a key 10. After the main shaft 101 inserts the insertion ring 8, the lock teeth 103 will push the corresponding split drive pin 604 upward, so that the cylindrical block in the split drive pin 604 no longer restricts the core ring 601 and can rotate the core ring 601, thereby driving the bottom ring 9 to rotate, so that the bottom ring 9 drives the door lock to open.

[0028] Furthermore, the side shell 204 has a door lock box 206 inside, and the lock cylinder 3 passes through the surface of the door lock box 206. The door lock box 206 is a structure for placing the lock cylinder of the existing door lock. After the structure inside the lock cylinder 3 is inserted into the door lock box 206, the core ring 601 inside the lock cylinder 3 is opened, and the bottom ring 9 can drive the structure inside the door lock box 206 to detach from the structure on the door frame, thereby opening the door panel 1.

[0029] In summary:

[0030] When it is necessary to open the door panel 1, the position of the lock sleeve 102 on the key 10 needs to be adjusted, and then the handle 104 is threadedly connected and fixed to the main shaft 101. After that, one end of the main shaft 101 is inserted into the interior of the lock cylinder 3 through the insertion ring 8. During this process, the lock teeth 103 of different heights on the lock sleeve 102 can press upward on the split drive pin 604 inside the core ring 601 in the corresponding split ring 5. The split drive pin 604 itself is kept inside the core ring 601 by the pressure of the lifting column 602 and the compression spring 603, which restricts the rotation of the core ring 601. When the split drive pin 604 rises, the insertion pin is aligned with the outside of the core ring 601, and it can rotate, so that the bottom ring 9 is driven to rotate. Thus, the bottom ring 9 can drive the structure inside the door lock box 206 to open the door panel 1. The door lock box 206 is fixed inside the door panel 1 by the side shell 204, and the side shell 204 is protected by the mounting tube 201 and the bolt 202. The protective shell 203 is fixed to the door panel 1, and a fireproof plate 205 is also fixed between the protective shell 203 and the door panel 1. The fireproof plate 205 protects the internal structure of the lock cylinder 3, preventing internal deformation due to high temperature and preventing the door from opening. When it is necessary to match the key 10 with the locating ring 5 inside the receiving slot 4, the lock sleeve 102 and the locating ring 5 can be aligned to ensure that the locking teeth 103 on the lock sleeve 102 can enter the corresponding locating ring 5. The split drive pins 604 inside the locating ring 5 have different heights, so the lock cannot be opened when the locking teeth 103 cannot correspond to the locating ring 5. With the above structure, when using the internal structure of the lock cylinder 3 to lock the door, the lock cylinder 3 can be easily opened by changing the locking teeth 103 on the key 10. One key 10 can open many doors, reducing storage needs and eliminating the need for duplicate keys 10. At the same time, security is enhanced by increasing the types of combinations, so that both security and convenience are guaranteed.

[0031] 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 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A door lock cylinder, comprising a door panel (1), characterized in that, The surface of the door panel (1) is provided with a lock cylinder (3) by the mounting mechanism (2). The surface of the lock cylinder (3) is provided with a receiving groove (4). Several row rings (5) are slidably connected inside the receiving groove (4). A locking mechanism (6) is provided inside the row rings (5). Two sliders (7) are fixedly connected to the top of the lock cylinder (3). One end of the lock cylinder (3) is rotatably connected with a plug ring (8). The other end of the lock cylinder (3) is rotatably connected with a bottom ring (9). A key (10) is provided on the surface of the plug ring (8).

2. A door lock cylinder according to claim 1, characterized in that, The installation mechanism (2) includes four installation tubes (201) passing through the surface of the door panel (1). The four installation tubes (201) are fixedly connected to two protective shells (203) by bolts (202). A side shell (204) is provided between the two protective shells (203). Two installation tubes (201) pass through the inside of the side shell (204). Two fireproof plates (205) are fixedly connected inside the protective shell (203). The other two installation tubes (201) pass through the surface of the fireproof plate (205).

3. A door lock cylinder according to claim 1, characterized in that, The locking mechanism (6) includes a core ring (601) slidably connected to the surface of the split ring (5), a lifting column (602) fixedly connected to the top of the split ring (5), and a split drive pin (604) elastically connected to the bottom of the lifting column (602) through a compression spring (603). The split drive pin (604) is located inside the core ring (601).

4. A door lock cylinder according to claim 1, characterized in that, Slide grooves (11) are provided on both sides of the slider (7) and on both sides of the split ring (5), and a top cover (12) is slidably connected between the two slide grooves (11).

5. A door lock cylinder according to claim 1, characterized in that, The key (10) includes a main shaft (101) passing through the surface of the insert ring (8). The surface of the main shaft (101) is fitted with a plurality of T-shaped lock sleeves (102). The top of the plurality of lock sleeves (102) is fixedly connected with lock teeth (103) of different heights. One end of the main shaft (101) is threadedly connected with a handle (104).

6. A door lock cylinder according to claim 2, characterized in that, The side shell (204) has a door lock box (206) inside, and the lock cylinder (3) passes through the surface of the door lock box (206).

Images