CN111677373A - A blade anti-theft lock cylinder - Google Patents

Abstract

The invention discloses a blade anti-theft lock cylinder, comprising a lock shell, a lock cylinder and a side post. The lock cylinder is provided with a plurality of lock cylinder blade through grooves, and each lock cylinder blade through groove is provided with an outer blade, Inner leaf and leaf spring, the outer leaf includes an upper outer leaf and a lower outer leaf, the inner leaf includes an upper inner leaf and a lower inner leaf, the leaf spring includes an upper leaf spring and a lower leaf spring, the upper outer leaf , The lower inner blade and the upper blade spring form the first blade group, the lower outer blade, the upper inner blade and the lower blade spring form the second blade group, and the first blade group and the second blade group are in the through groove of the lock cylinder blade form a whole. The above technical solution solves the defect of the existing three blades or four blades sharing a spring and some of the blades are floating and unforced when unlocking. Safe, reliable and practical.

Description

A blade anti-theft lock cylinder

technical field

The invention relates to the technical field of lock cylinders, in particular to a blade anti-theft lock cylinder.

Background technique

Locks are items that people cannot leave in daily life. Humans have been using locks since ancient times to keep important items so that their belongings will not be stolen by others. The core anti-theft part of the lock is the lock cylinder, and the performance of the lock cylinder directly affects the anti-theft performance of the entire lock. At present, there are many kinds of lock cylinders. The traditional mechanical marble locks and blade lock cylinders have been circulating in the market for many years, and the unlocking tools developed for them can be seen everywhere, and the performance of the lock cylinders has long failed to meet the anti-theft requirements.

In recent years, manufacturers have developed many lock cylinders with good performance in response to this phenomenon. The most representative structure is the side post lock cylinder, especially the blade side post lock cylinder. The advantage of the blade side post lock cylinder compared with the marble side post lock cylinder is that the key quantity of the same lock cylinder length is much higher. The initial blade side post lock cylinder has only one blade in the lock cylinder blade slot (blade storage bin), and later increased to two or three. Among them, the more reasonable design is that the blade spring force is on the opposite blades. , moving one of the leaves and the rest of the leaves will move at the same time. Among them, the typical structure is that three leaves share a leaf spring; but this structure also has a disadvantage: only two leaves are affected by the leaf spring when unlocking. In addition, the remaining blades will be in an unsprung state, and the unsprung blades are easily opened to each other, which affects the anti-technical opening performance, and has certain quality and safety hazards.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a safe and reliable blade anti-theft lock cylinder with reasonable structure design, increased technical opening difficulty, increased key amount, and reduced mutual opening rate.

In order to achieve the above purpose, the present invention provides the following technical solutions: a blade anti-theft lock cylinder, including a lock shell, a lock cylinder and a side post, the lock cylinder is provided with a number of lock cylinder blade through grooves, each lock cylinder blade An outer blade, an inner blade and a blade spring are arranged in the through groove, the outer blade includes an upper outer blade and a lower outer blade, the inner blade includes an upper inner blade and a lower inner blade, and the blade spring includes an upper blade spring and a lower inner blade. The lower leaf spring, the upper outer leaf, the lower inner leaf and the upper leaf spring form a first leaf group, the lower outer leaf, the upper inner leaf and the lower leaf spring form a second leaf group, the first leaf group and the first leaf spring The two-blade group forms a whole in the straight-through groove of the lock cylinder blade.

The present invention is further provided as follows: when any one of the blades in the first blade group and the second blade group is moved, the other three blades and the blade spring are simultaneously moved as a whole.

The present invention is further provided that: the side pillars are square side pillars or V-shaped side pillars.

The present invention is further provided that: the upper outer blade and the lower outer blade both comprise outer blade bodies, the outer blade body is provided with an outer blade key socket, and the outer blade key socket is provided with an outer tooth flower matching boss One end of the outer blade body is integrally provided with an outer blade compression spring boss, and the other end of the outer blade body is provided with an outer blade notch and an outer blade side post start-up oblique edge.

The present invention is further provided that: the upper inner blade and the lower inner blade both include inner blade bodies, the inner blade body is provided with an inner blade key socket, one end of the inner blade body is integrally provided with an inner blade compression spring boss, and the inner blade The other end of the body is provided with an inner blade password slot.

The present invention is further provided as follows: one end of the lock cylinder is provided with a key, and the key is provided with an upper outer tooth flower, an upper inner tooth flower, a lower outer tooth flower and a lower inner tooth flower, the upper outer tooth flower and the upper tooth flower are arranged on the key. The outer leaves are matched, the upper inner teeth are matched with the upper inner leaves, the lower outer teeth are matched with the lower outer leaves, and the lower inner teeth are matched with the lower inner leaves.

The present invention is further provided that: when the key is not inserted, one end of the upper leaf spring is abutted against the outer leaf compression spring boss of the upper outer leaf, and the other end is abutted against the inner leaf compression spring boss of the lower inner leaf; The inner blade compression spring boss of the upper inner blade is abutted against, and the other end is abutted against the outer blade compression spring boss of the lower outer blade.

The present invention is further provided as follows: when the key is inserted, the upper outer blade compresses the upper blade spring downward to move, and at the same time the lower inner blade compresses the upper blade spring upward to move; the upper inner blade compresses the lower blade spring downward to move, and simultaneously the lower outer blade moves upward Compression lower leaf spring moves.

The advantages of the present invention are: compared with the prior art, the structure of the present invention is more reasonable. Since the lock cylinder blade groove is a straight-through groove, when any blade in the first blade group and the second blade group is moved, the other three Both the leaf and leaf spring move as a whole at the same time. The advantage of this design is that each leaf has a spring force when unlocking, which solves the problem that some of the leaves are floating and unforced when the existing three leaves or four leaves share a spring when unlocking. The defect of the lock cylinder greatly improves the reliability of the anti-theft performance of the lock cylinder and the product quality; the structure design is reasonable, the technical opening difficulty is increased, the key amount is increased, the mutual opening rate is reduced, and it is safe and reliable, and has good practicability.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments of the description.

Description of drawings

1 is an exploded schematic diagram of Embodiment 1 of the present invention;

2 is a schematic diagram of the assembly of an outer blade, an inner blade and a blade spring according to Embodiment 1 of the present invention;

3 is a schematic structural diagram of a soft-start outer blade according to an embodiment of the present invention;

4 is a schematic structural diagram of a two-way activation type outer blade according to an embodiment of the present invention;

5 is a schematic structural diagram of a hard-start type outer blade according to an embodiment of the present invention;

6 is a schematic structural diagram of an inner blade in Embodiment 1 of the present invention;

7 is a schematic structural diagram of the blade state when the key is not inserted in Embodiment 1 of the present invention;

8 is a schematic structural diagram of the principle of blade movement when a key is inserted according to Embodiment 1 of the present invention;

9 is a schematic structural diagram of a key according to Embodiment 1 of the present invention;

10 is a schematic diagram of the position matching between the key tooth flower and the blade according to Embodiment 1 of the present invention;

11 is a schematic structural diagram of a square side column according to an embodiment of the present invention;

12 is a schematic structural diagram of an outer blade according to Embodiment 2 of the present invention;

13 is a schematic structural diagram of an inner blade in Embodiment 2 of the present invention;

14 is a schematic structural diagram of the blade state when the key is not inserted in the second embodiment of the present invention;

15 is a schematic structural diagram of the blade movement principle when a key is inserted in Embodiment 2 of the present invention;

FIG. 16 is a schematic structural diagram of a V-shaped side column according to Embodiment 2 of the present invention.

Detailed ways

In the description of this embodiment, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", " "outside", "front", "rear", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that The device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third," as they appear, are for descriptive purposes only and should not be construed to indicate or imply relative importance.

Example 1

1 to 11, a blade anti-theft lock cylinder disclosed in the present invention includes a lock shell 1, a lock cylinder 2 and a side post 3. The lock cylinder 2 is provided with a plurality of lock cylinder blade through grooves 21. An outer blade, an inner blade and a blade spring are arranged in the core blade through groove 21. The outer blade includes an upper outer blade 4 and a lower outer blade 5, and the inner blade includes an upper inner blade 6 and a lower inner blade 7. The leaf spring includes an upper leaf spring 8 and a lower leaf spring 9, the upper outer leaf 4, the lower inner leaf 7 and the upper leaf spring 8 form a first leaf group, the lower outer leaf 5, the upper inner leaf 6 and the lower leaf spring 9 to form a second blade group, the first blade group and the second blade group form a whole in the through groove 21 of the lock cylinder blade.

Preferably, the lock cylinder 2 is provided with a side post groove that is the same as the lock cylinder blade through groove 21, the side post 3 is installed in the side post groove, and the lock shell 1 is provided with a lock cylinder cavity, so The lock cylinder 2 is embedded in the lock cylinder cavity. When any one leaf in the first leaf group and the second leaf group is moved, the other three leaves and the leaf springs move as a whole at the same time.

In order to make the structure arrangement of the present invention more reasonable, preferably, the side pillars 3 in this embodiment are square side pillars or V-shaped side pillars.

The upper outer blade 4 and the lower outer blade 5 both include an outer blade body 10, and an outer blade key socket 101 is arranged in the outer blade body 10, and an outer tooth flower matching boss 102 is arranged in the outer blade key socket 101. One end of the outer blade body 10 is integrally provided with an outer blade compression spring boss 103, and the other end of the outer blade body 10 is provided with an outer blade slot 104 and an outer blade side post start-up bevel 105.

The upper inner blade 6 and the lower inner blade 7 both include an inner blade body 11, an inner blade key socket 111 is arranged in the inner blade body 11, and an inner blade compression spring boss 112 is integrally provided at one end of the inner blade body 11. The other end of the body 11 is provided with an inner blade password slot 113 .

One end of the lock cylinder 2 is provided with a key 12, and the key 12 is provided with an upper outer tooth flower 121, an upper inner tooth flower 122, a lower outer tooth flower 123 and a lower inner tooth flower 124. The upper outer blade 4 is matched, the upper inner blade 122 is matched with the upper inner blade 6, the lower outer blade 123 is matched with the lower outer blade 5, and the lower inner blade 124 is matched with the lower inner blade 7. match.

When the key 12 is not inserted, one end of the upper leaf spring 8 is in contact with the outer leaf compression spring boss of the upper outer leaf 4, and the other end is abutted with the inner leaf compression spring boss of the lower inner leaf 7; one end of the lower leaf spring 9 is in contact with the upper inner leaf The inner blade compression spring boss of the blade 6 abuts against the other end of the outer blade compression spring boss of the lower outer blade 5 .

When the key 12 is inserted, the upper outer blade 4 compresses the upper blade spring 8 downward to move, while the lower inner blade 7 compresses the upper blade spring 8 upward to move; the upper inner blade 6 compresses the lower blade spring 9 downward to move, and at the same time the lower outer blade 5 The lower leaf spring 9 is moved upwardly compressed.

The side post 3 in this embodiment is a square side post, and the shape and size of the outer blade slot 104 and the inner blade password slot 113 match the square side post. In the process of pulling out the key, the side post on the blade is used to start the bevel and push the side post out of the side post groove first.

In practical application, since the lock cylinder blade slot is a straight-through slot, when any blade in the first blade group and the second blade group is moved, the other three blades and the blade spring move as a whole at the same time. The advantage of this design is that the lock is unlocked. Each blade has a spring force, which solves the defect that some of the blades are floating and not stressed when unlocking the existing three blades or four blades sharing a spring, which greatly improves the anti-theft performance of the lock cylinder and the reliability of product quality ; Reasonable structure design, increase the technical difficulty of opening and increase the amount of keys, reduce the mutual opening rate, safe and reliable, and good practicability.

Embodiment 2

Referring to FIGS. 12 to 16 , the second embodiment is a structural improvement on the basis of the above-mentioned embodiment. The side column 3 adopts a V-shaped side column. The shape is set to match the V-groove of the side post 3.

The specific description of the present invention in the above embodiments is only used to further illustrate the present invention, and should not be construed as a limitation on the protection scope of the present invention. Some non-essential improvements and adjustments made to the present invention by technical engineers in the field according to the content of the above invention are all within the scope of the present invention. into the protection scope of the present invention.

Claims (7)

1. A blade anti-theft lock cylinder, comprising a lock shell (1), a lock cylinder (2) and a side post (3), characterized in that: the lock cylinder (2) is provided with several lock cylinder blade straight-through grooves ( 21), each lock cylinder blade through groove (21) is provided with an outer blade, an inner blade and a leaf spring, the outer blade includes an upper outer blade (4) and a lower outer blade (5), and the inner blade includes The upper inner vane (6) and the lower inner vane (7), the leaf spring includes an upper leaf spring (8) and a lower leaf spring (9), the upper outer vane (4), the lower inner vane (7) and the upper The leaf spring (8) forms a first leaf group, the lower outer leaf (5), the upper inner leaf (6) and the lower leaf spring (9) form a second leaf set, the first leaf set and the second leaf set It forms a whole in the straight through groove (21) of the lock cylinder blade. 2. The blade anti-theft lock cylinder according to claim 1, wherein the side post (3) is a square side post or a V-shaped side post. 3. A blade anti-theft lock cylinder according to claim 2, characterized in that: the upper outer blade (4) and the lower outer blade (5) both comprise an outer blade body (10), and the outer blade body (10) An outer blade key insertion hole (101) is arranged inside, an outer tooth flower matching boss (102) is arranged in the outer blade key insertion hole (101), and an outer blade pressure is integrally provided at one end of the outer blade body (10). The spring boss (103), the other end of the outer blade body (10) is provided with an outer blade notch (104) and an outer blade side post start-up bevel (105). 4. A blade anti-theft lock cylinder according to claim 3, wherein the upper inner blade (6) and the lower inner blade (7) both comprise an inner blade body (11), an inner blade body (11) An inner blade key socket (111) is provided inside, one end of the inner blade body (11) is integrally provided with an inner blade compression spring boss (112), and the other end of the inner blade body (1) is provided with an inner blade password notch (113) . 5. A blade anti-theft lock cylinder according to claim 4, characterized in that: one end of the lock cylinder (2) is provided with a key (12), and an upper outer tooth flower (121) is provided on the key (12). ), the upper inner tooth flower (122), the lower outer tooth flower (123) and the lower inner tooth flower (124), the upper outer tooth flower (121) is matched with the upper outer leaf (4), and the upper inner tooth flower (121) is matched with the upper outer tooth flower (4). The flower (122) matches the upper inner leaf (6), the lower outer tooth flower (123) matches the lower outer leaf (5), and the lower inner tooth flower (124) matches the lower inner leaf (7). match. 6. A blade anti-theft lock cylinder according to claim 5, characterized in that: when the key (12) is not inserted, one end of the upper blade spring (8) and the outer blade compression spring boss of the upper outer blade (4) The other end of the lower blade spring (9) is in contact with the inner blade compression spring boss of the upper inner blade (6), and the other end is in contact with the lower outer blade ( 5) The outer leaf pressure spring bosses touch each other. 7. A blade anti-theft lock cylinder according to claim 6, characterized in that: when the key (12) is inserted, the upper outer blade (4) compresses the upper blade spring (8) downward to move, while the lower inner blade ( 7) Compress the upper leaf spring (8) upward to move; the upper inner leaf (6) compresses the lower leaf spring (9) downward to move, while the lower outer leaf (5) compresses the lower leaf spring (9) upward to move.

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