Door lock cylinder assembly

Abstract

The door lock cylinder assembly comprises a lock sleeve, a lock cylinder body and a swing arm, the lock sleeve is inserted in the lock cylinder body, the swing arm is located on the rear side of the lock cylinder body and is in linkage with the lock cylinder body, the lock cylinder body comprises a locating column protruding backwards and a lock shell located on the front side of the locating column, and the swing arm is provided with a locating hole corresponding to the locating column. A positioning insertion block is arranged on the rear side of the swing arm in a protruding mode, a positioning insertion groove is formed in the position, corresponding to the positioning insertion block, of the lock shell, and the swing arm abuts against the lock sleeve. By the adoption of the scheme, the door lock cylinder assembly has the advantages that the positioning insertion block is inserted into the positioning insertion groove, and therefore convenience is provided for assembling of the swing arm and the lock cylinder body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a door lock cylinder assembly. BACKGROUND

[0002] The door lock cylinder assembly comprises a lock cylinder body and a swing arm, after a correct key is inserted, rotating the key will make the inner core in the lock cylinder body rotate, further drive the swing arm connected at the end of the lock cylinder, further trigger the action of the locking mechanism, realize the opening or closing of the lock.

[0003] Since the lock cylinder body and the swing arm are linked, the lock cylinder body and the swing arm need to be connected together, and the common connection mode is screw fixing, buckle connection, pin / plunger connection and the like, and the lock cylinder body and the swing arm are usually aligned in position to provide convenience for the fixing of the lock cylinder body and the swing arm.

[0004] Therefore, how to efficiently realize the relative position determination of the lock cylinder body and the swing arm becomes a problem to be solved by the person skilled in the art. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a door lock cylinder assembly which inserts a positioning plug into a positioning slot to provide convenience for the assembly of the swing arm and the lock cylinder body.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: comprising a lock sleeve, a lock cylinder body and a swing arm, the lock cylinder body is inserted into the lock sleeve, the swing arm is located at the back side of the lock cylinder body and is linked with the lock cylinder body, the lock cylinder body comprises a positioning column protruding backward and a lock shell located at the front side of the positioning column, the swing arm is provided with a positioning hole corresponding to the positioning column, the swing arm is provided with a positioning plug protruding at the back side, the lock shell is provided with a positioning slot corresponding to the positioning plug, and the swing arm is in abutment with the lock sleeve.

[0007] The utility model is further provided as follows: the cross section of the positioning plug is triangular with the front being narrow and the back being wide.

[0008] The utility model is further provided as follows: the positioning column comprises a connecting section and a mounting section, a plurality of connecting plugs are arranged on the connecting section at intervals, and the swing arm is provided with a connecting slot corresponding to each connecting plug.

[0009] The utility model is further provided as follows: further comprising a check ring, the positioning column is provided with a limiting section at the back side of the mounting section, the check ring is made of a material capable of being deformed easily and is sleeved around the mounting section in the circumferential direction, the diameter of the limiting section is greater than that of the mounting section, and the back end surface of the limiting section is in abutment with the front end surface of the check ring, and the back end surface of the swing arm is in abutment with the front end surface of the check ring.

[0010] The utility model further sets up: still include first torsional spring, first torsional spring is located in the positioning slot and is set the lock core body, first torsional spring includes the supporting leg, the lock shell is located in the one side of positioning slot and is provided with the loading entrance, the supporting leg is inserted and sets up the loading entrance and the lock shell is located below the supporting leg and is provided with the limit block.

[0011] The utility model further sets up: still include dustproof seat and second torsional spring, the lock core body is provided with the lock hole, the projection of lock hole falls on dustproof seat towards the front, dustproof plate is movably installed on dustproof seat, second torsional spring is located in dustproof seat and one side is fixedly connected with dustproof plate.

[0012] The utility model further sets up: lock piece is movably installed to the lock core body in the circumference of lock hole, and the lock sleeve is provided with the buckling block corresponding lock piece.

[0013] Through adopting above-mentioned technical scheme, since the lock core body is provided with the positioning column towards the back, and the positioning hole is provided to the swing arm corresponding positioning column, therefore, after swing arm is loaded into the back of lock core, at this moment, along with the limit block of swing arm is loaded into the positioning slot of lock shell, at this moment, the relative position of swing arm and lock shell can be determined to provide the convenience for the fixation of lock shell and swing arm. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only is some embodiments of the utility model, and for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0015] Figure 1 It is the perspective view of the specific embodiment of the utility model;

[0016] Figure 2 It is the explosion view of the utility model from the front to the rear view;

[0017] Figure 3 It is the explosion view of the utility model from the rear to the front view;

[0018] Figure 4 It is the explosion view of the lock core body and the lock sleeve in the utility model;

[0019] Figure 5 It is Figure 3 the enlarged view of A in the middle;

[0020] Figure 6 It is Figure 4 the enlarged view of B in the middle.

[0021] In the diagram: 1-locking sleeve, 11-fastening block;

[0022] 2-Lock cylinder body, 21-Positioning pin, 211-Connecting section, 2111-Connecting block, 212-Mounting section, 213-Limiting section, 22-Lock shell, 221-Positioning slot, 222-Installation entrance, 223-Limiting block, 24-Lock hole, 25-Lock plate;

[0023] 3-Swing arm, 31-Positioning hole, 32-Positioning block, 33-Connecting slot;

[0024] 4-Retaining ring;

[0025] 5-First torsion spring, 51-Support leg;

[0026] 6-Dustproof base, 61-Dustproof plate;

[0027] 7-Second torsion spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-6 As shown, this utility model discloses a door lock cylinder assembly, including a lock sleeve 1, a lock cylinder body 2, and a swing arm 3. The lock cylinder body 2 is inserted into the lock sleeve 1, and the swing arm 3 is located on the rear side of the lock cylinder body 2 and is linked with the lock cylinder body 2. Therefore, after the door lock cylinder assembly is installed on the door, when it is necessary to open the door, inserting the key will cause the lock cylinder body 2 to rotate relative to the lock sleeve 1 and drive the swing arm 3 to rotate synchronously, thereby opening the door (this is prior art and will not be described in detail here). The lock cylinder body 2 includes a rearward protruding positioning post 21 and a lock shell 22 located on the front side of the positioning post 21. The swing arm... Positioning holes 31 are provided for the positioning pin 21, and positioning blocks 32 are provided for the rear side of the swing arm 3. Positioning slots 221 are provided for the lock housing 22 corresponding to the positioning blocks 32. The swing arm 3 abuts against the lock sleeve 1. Since the positioning pin 21 is provided for the rearward protrusion of the lock cylinder body 2, and the positioning holes 31 are provided for the swing arm 3 corresponding to the positioning pin 21, after the swing arm 3 is installed behind the lock cylinder, the positioning blocks 32 on the swing arm 3 are installed into the positioning slots 221 of the lock housing 22. At this time, the relative position of the swing arm 3 and the lock housing 22 can be determined, which facilitates the subsequent fixing of the lock housing 22 and the swing arm 3.

[0030] Preferably, the positioning plug 32 is triangular in cross-section, with the front narrower than the back. As the positioning plug 32 is triangular in cross-section, with the front narrower than the back, during the process of inserting the positioning plug 32 into the positioning slot 221 of the lock shell 22, the last side of the positioning plug 32, which is the narrowest part, enters the positioning slot 221 first, thereby facilitating the alignment of the positioning plug 32 with the positioning slot 221.

[0031] The positioning column 21 comprises a connecting section 211 and a mounting section 212. The connecting section 211 is provided with a plurality of connecting plugs 2111 at intervals. The swing arm 3 is provided with a connecting slot 33 corresponding to each connecting plug 2111. When the positioning plug 32 is inserted into the positioning slot 221, the connecting plug 2111 located on the circumference of the connecting section 211 of the positioning column 21 can fall into the corresponding connecting slot 33 of the swing arm 3, thereby preventing the lock cylinder body 2 from rotating relative to the swing arm 3, and further facilitating the fixed connection of the swing arm 3 and the lock cylinder body 2.

[0032] In addition, the lock also comprises a stop ring 4. The positioning column 21 is provided with a limiting section 213 on the rear side of the mounting section 212. The stop ring 4 is made of spring steel, stainless steel, or other materials that can easily deform, and is sleeved around the circumference of the mounting section 212. The diameter of the limiting section 213 is greater than that of the mounting section 212, and the rear end surface of the limiting section 213 abuts against the front end surface of the stop ring 4. The rear end surface of the swing arm 3 abuts against the front end surface of the stop ring 4. Since the stop ring 4 is made of a material that can easily deform, it needs to be deformed during the process of sleeving it around the circumference of the mounting section 212, and then it can be stably positioned on the mounting section 212 after the hand is released. At this time, since the stop ring 4 is located between the limiting section 213 and the swing arm 3, and abuts against the limiting section 213 and the swing arm 3 on both sides, the stop ring 4 prevents the positioning column 21 and the swing arm 3 from moving axially, thereby further improving the connection stability of the swing arm 3 on the lock cylinder body 2.

[0033] The lock also comprises a first torsional spring 5. The first torsional spring 5 is located in the positioning slot 221 and is sleeved around the lock cylinder body 2. The first torsional spring 5 comprises a leg 51. The lock shell 22 is provided with a mounting hole 222 on one side of the positioning slot 221. The leg 51 is inserted into the mounting hole 222, and the lock shell 22 is provided with a limiting plug 223 below the leg 51. Since the lock shell 22 is provided with the limiting plug 223 below the leg 51, when the first torsional spring 5 is inserted into the positioning slot 221 and is sleeved around the lock cylinder body 2, the limiting plug 223 can guide the placement of the first torsional spring 5. When the door is closed, the elastic force of the first torsional spring 5 can drive the lock cylinder body 2 to reset, thereby achieving the locking of the door.

[0034] The lock core body 2 is provided with a lock hole 24, and the projection of the lock hole 24 towards the front falls on the dustproof seat 6; the dustproof plate 61 is movably installed on the dustproof seat 6; the second torsion spring 7 is located in the dustproof seat 6 and is fixedly connected with the dustproof plate 61 on one side by welding or the like; since the second torsion spring 7 is fixedly connected with the dustproof plate 61, when the key is not inserted, the dustproof plate 61 is located in front of the lock hole 24, so that the dust from the outside is difficult to enter the lock hole 24; when the key is inserted to realize unlocking, the key contacts the dustproof plate 61 before being inserted into the lock hole 24, so that the dustproof plate 61 is rotated to realize door opening; when the key is taken out of the lock hole 24 of the lock core body 2, the dustproof plate 61 is reset to be located in front of the lock hole 24 to realize dust prevention due to the elastic force of the second torsion spring 7.

[0035] The lock core body 2 is movably installed around the lock hole 24 with a lock piece 25; the lock sleeve 1 is provided with a buckling block 11 corresponding to the lock piece 25; when the correct key is inserted into the lock hole 24, the key can drive the lock piece 25 on the lock core body 2 to move, so that the buckling block 11 and the lock piece 25 change the cooperation relationship (this is the prior art, which will not be specifically described here), so that the key can drive the lock core body 2 and the swing arm 3 to rotate.

[0036] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A door lock cylinder assembly, comprising a lock housing, a lock cylinder body and a swing arm, the lock cylinder body is inserted into the lock housing, the swing arm is located at the back side of the lock cylinder body and is linked with the lock cylinder body, characterized in that: The lock core body comprises a positioning column protruding rearward and a lock shell located at the front side of the positioning column, the swing arm is provided with a positioning hole corresponding to the positioning column, the rear side of the swing arm is provided with a positioning plug block protruding, the lock shell is provided with a positioning slot corresponding to the positioning plug block, and the swing arm is in abutment with the lock sleeve.

2. A door lock cylinder assembly according to claim 1, characterized in that: The cross section of the positioning plug block is triangular with the front being narrow and the rear being wide.

3. A door lock cylinder assembly according to claim 1 or 2, characterized in that: The positioning column comprises a connecting section and a mounting section, a plurality of connecting plug blocks are arranged on the connecting section at intervals, and the swing arm is provided with a connecting slot corresponding to each connecting plug block.

4. A door lock cylinder assembly according to claim 3 wherein: A stop ring is further included, the positioning column is provided with a limiting section at the rear side of the mounting section, the stop ring is made of a material capable of being deformed easily and is sleeved around the mounting section, the diameter of the limiting section is greater than that of the mounting section, and the rear end surface of the limiting section is in abutment with the front end surface of the stop ring, the rear end surface of the swing arm is in abutment with the front end surface of the stop ring.

5. A door lock cylinder assembly according to claim 3 wherein: A first torsional spring is further included, the first torsional spring is located in the positioning slot and is sleeved around the lock core body, the first torsional spring comprises a leg, the lock shell is provided with a mounting hole penetrating through one side of the positioning slot, the leg is inserted into the mounting hole, and the lock shell is located below the leg and is provided with a limiting plug block.

6. A door lock cylinder assembly according to claim 1, characterized in that: A dustproof seat and a second torsional spring are further included, the lock core body is provided with a lock hole, the projection of the lock hole towards the front falls on the dustproof seat, a dustproof plate is movably mounted on the dustproof seat, and the second torsional spring is located in the dustproof seat and is fixedly connected with the dustproof plate on one side.

7. A door lock cylinder assembly according to either claim 1 or claim 6, wherein: The lock core body is movably mounted with a lock piece around the lock hole, and the lock sleeve is provided with a buckling block corresponding to the lock piece.

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