Mechanical lock cylinder with good safety

Abstract

The utility model discloses a mechanical lock cylinder with good safety, and relates to the technical field of lock cylinders, the mechanical lock cylinder comprises a lock shell, a fixing hole is formed in the inner surface of the lock shell, a limiting groove is formed in the inner surface of the lock shell, the upper end of the lock shell is fixedly connected with a connecting and fixing mechanism, the inner surface of the lock shell is rotatably connected with an anti-theft cylinder mechanism, and the anti-theft cylinder mechanism comprises a cylinder body; a plurality of sliding holes are formed in the two sides of the core body, marble heads are slidably connected to the inner surfaces of the sliding holes, marble rods are in contact connection with one ends of the marble heads, the outer surfaces of the marble rods are slidably connected with the fixing holes, springs are fixedly connected to the ends, away from the marble heads, of the marble rods, and six limiting blocks are fixedly connected to the outer surface of the core body. The outer surfaces of the six limiting blocks are rotationally connected with the limiting grooves, the twelve sliding holes are formed in total and distributed in two rows, and the lock hole is formed in the middle of the cylinder body. According to the mechanical lock cylinder, the anti-theft effect of the mechanical lock cylinder can be improved, and the function of better preventing illegal persons can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical lock cores, and in particular to a mechanical lock core with good safety. Background Art

[0002] Although the appearance of various existing mechanical lock cylinders varies, ordinary pin lock cylinders have a simple structure and a high market share. They are mainly composed of a lock shell, a lock cylinder body, a key and other components, supplemented by pins and pin springs of varying lengths, which together form the locking and opening functions of the lock cylinder.

[0003] According to the announcement number: CN219316664U, a mechanical lock core with good security is disclosed. This technology discloses "including a lock body, a lock core is arranged inside the lock body, a keyhole is opened inside the lock core, a key is slidably inserted inside the keyhole, circular grooves are opened at equal intervals inside the lock body, a No. 1 spring is fixedly connected inside the circular groove, and a bullet is fixedly connected to the lower end of the No. 1 spring, etc., which has the effect of increasing the difficulty of opening the lock core."

[0004] With regard to the above-mentioned related technologies, the inventor believes that the mechanical lock core has only one group of pins, and the single-row mechanical lock core does not have a very strong anti-theft effect and cannot prevent illegal personnel. Moreover, the mechanical lock core is integrated, and when the pins in the lock core undergo oxidation reaction, they cannot be replaced, affecting normal use. Utility Model Content

[0005] The purpose of this application is to provide a mechanical lock core with good security, so as to improve the problem that the anti-theft effect of the mechanical lock core with a single row of pins is not very strong and cannot prevent illegal personnel, and when the pins in the lock core undergo oxidation reaction, they cannot be replaced, affecting normal use.

[0006] The mechanical lock cylinder with good security provided by the present application adopts the following technical solution:

[0007] A mechanical lock core with good security comprises a lock shell, a fixing hole is provided on the inner surface of the lock shell, a limiting groove is provided on the inner surface of the lock shell, a connecting and fixing mechanism is fixedly connected to the upper end of the lock shell, the inner surface of the lock shell is rotatably connected to an anti-theft core mechanism, the anti-theft core mechanism comprises a core body, a plurality of sliding holes are provided on both sides of the core body, a plurality of inner surfaces of the sliding holes are slidably connected with pin heads, one end of the pin head is contacted and connected with a pin rod, and the outer surface of the pin rod is slidably connected to the fixing hole, and the end of the pin rod away from the pin head is fixedly connected with a spring.

[0008] By adopting the above technical solution, the core body and the lock shell can be fixedly locked together.

[0009] Optionally, the connecting and fixing mechanism includes two shell covers, the lower ends of the two shell covers are detachably connected to the lock shell, the upper ends of the two shell covers and the lock shell are provided with a plurality of connecting holes, the inner surfaces of the plurality of connecting holes are fixedly connected with threads, the outer surfaces of the threads are meshedly connected with bolts, and the upper ends of the bolts are fixedly connected with a cross groove.

[0010] By adopting the above technical solution, it is convenient to disassemble the shell cover and replace the marbles inside it.

[0011] Optionally, six limit blocks are fixedly connected to the outer surface of the core body, and the outer surfaces of the six limit blocks are rotatably connected to the limit grooves.

[0012] By adopting the above technical solution, a limit can be provided when the core body is rotated to unlock.

[0013] Optionally, there are twelve sliding holes in total, and the twelve sliding holes are distributed in two rows, and a locking hole is provided in the middle of the core body.

[0014] The above technical solution is adopted mainly to enable the key to be inserted into the lock cylinder.

[0015] Optionally, buckle hooks are fixedly connected to both sides of the two shell covers, inner surfaces of the buckle hooks are contact-connected with buckle rings, one side of the buckle ring is rotatably connected to a fixing seat, and one side of the fixing seat is fixedly connected to the lock shell.

[0016] By adopting the above technical solution, the shell cover and the lock shell can be auxiliary fixedly connected.

[0017] Optionally, there are four connection holes in total, and the four connection holes are distributed in a rectangular array.

[0018] By adopting the above technical solution, the shell cover can be fixed on the lock shell more firmly.

[0019] Optionally, one end of the lock housing is rotatably connected to a paddle shaft, and an outer surface of the paddle shaft is fixedly connected to two paddle pins.

[0020] By adopting the above technical solution, an auxiliary effect is exerted on the door lock mechanism.

[0021] Optionally, both ends of the paddle shaft pass through the lock shell to form insertion holes, and the insertion holes are used in conjunction with the lock hole.

[0022] By adopting the above technical solution, the key can drive the paddle shaft to rotate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The utility model is provided with an anti-theft core mechanism, in which the core body, the pin head, the pin rod, the spring and the limit block can improve the anti-theft effect of the mechanical lock core and better prevent illegal personnel;

[0025] 2. The utility model provides a connecting and fixing mechanism, wherein the shell cover, connecting hole, thread, bolt and hook can realize the function that when the marble undergoes oxidation reaction, it can be replaced to avoid affecting normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the anti-theft core mechanism of the utility model.

[0028] Figure 3 It is a schematic diagram of the core part of the utility model.

[0029] Figure 4 It is a schematic diagram of the connection and fixing mechanism of the utility model.

[0030] Figure 5 For this utility model Figure 4 A magnified view of the structure in the middle.

[0031] In the figure, 1. lock shell; 11. fixing hole; 12. limiting groove; 2. anti-theft core mechanism; 21. core body; 22. sliding hole; 23. pin head; 24. pin rod; 25. spring; 26. limiting block; 27. lock hole; 3. connecting and fixing mechanism; 31. shell cover; 32. connecting hole; 33. thread; 34. bolt; 35. cross groove; 36. fixing seat; 37. buckle; 38. hook; 4. pick shaft; 41. pick pin; 42. insertion hole. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0033] Example 1

[0034] Mechanical lock cylinder with good security, refer to Figure 1 and reference Figure 2, including a lock shell 1, characterized in that: a fixing hole 11 is opened on the inner surface of the lock shell 1, a limiting groove 12 is opened on the inner surface of the lock shell 1, the upper end of the lock shell 1 is fixedly connected with a connecting and fixing mechanism 3, the inner surface of the lock shell 1 is rotatably connected with an anti-theft core mechanism 2, the anti-theft core mechanism 2 includes a core body 21, a plurality of sliding holes 22 are opened on both sides of the core body 21, and a plurality of inner surfaces of the sliding holes 22 are slidably connected with a pin head 23, one end of the pin head 23 is in contact with a pin rod 24, and the outer surface of the pin rod 24 is slidably connected to the fixing hole 11, and the end of the pin rod 24 away from the pin head 23 is fixedly connected with a spring 25.

[0035] Reference Figure 3 Six limit blocks 26 are fixedly connected to the outer surface of the core body 21 , and the outer surfaces of the six limit blocks 26 are rotatably connected to the limit grooves 12 .

[0036] Reference Figure 3 There are twelve sliding holes 22 in total, and the twelve sliding holes 22 are distributed in two rows. A locking hole 27 is opened in the middle of the core body 21.

[0037] Reference Figure 1 One end of the lock housing 1 is rotatably connected to a paddle shaft 4 , and the outer surface of the paddle shaft 4 is fixedly connected to two paddle pins 41 .

[0038] Reference Figure 2 Both ends of the paddle shaft 4 penetrate the lock housing 1 to form insertion holes 42 , and the insertion holes 42 are used in conjunction with the lock hole 27 .

[0039] The implementation principle of the embodiment of the present application is as follows: insert the key into the lock hole 27 on the core body 21 and insert one end of the key into the insertion hole 42. When inserting the key into the lock hole 27, the key patterns on both sides of the key squeeze the pin head 23, so that the pin head 23 moves in the sliding hole 22. The movement of the pin head 23 drives the pin rod 24 to move in the fixing hole 11 under the action of the spring 25. When all the connections between the pin heads 23 and the pin rods 24 are flush, turn the key. The key drives the core body 21 to rotate along the limit groove 12 under the action of the limit block 26, and at the same time drives the paddle shaft 4 to rotate. The rotation of the paddle shaft 4 drives the paddle pin 41 to rotate, and then the lock is opened.

[0040] Example 2

[0041] The difference between this embodiment and embodiment 1 is that:

[0042] Reference Figure 3 and reference Figure 4The connecting and fixing mechanism 3 includes two shell covers 31, the lower ends of the two shell covers 31 are detachably connected to the lock shell 1, and the upper ends of the two shell covers 31 and the lock shell 1 are provided with a plurality of connecting holes 32, the inner surfaces of the plurality of connecting holes 32 are fixedly connected with threads 33, the outer surfaces of the threads 33 are meshedly connected with bolts 34, and the upper ends of the bolts 34 are fixedly connected with cross slots 35, and a cross screwdriver is inserted into the cross slot 35 and rotated, and the rotation of the cross slot 35 drives the threads 33 of the bolts 34 in the connecting holes 32 to be turned out, and then the shell cover 31 is separated from the lock shell 1.

[0043] Reference Figure 4 The two sides of the two shell covers 31 are fixedly connected with hooks 38, and the inner surface of the hooks 38 is contacted with a buckle ring 37, one side of the buckle ring 37 is rotatably connected to a fixing seat 36, and one side of the fixing seat 36 is fixedly connected to the lock shell 1, so that the buckle ring 37 rotates on the fixing seat 36 to separate the buckle ring 37 from the hooks 38.

[0044] Reference Figure 5 There are four connecting holes 32 in total, and the four connecting holes 32 are distributed in a rectangular array. All the bolts 34 in the four connecting holes 32 are removed.

[0045] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mechanical lock core with good safety, comprising a lock housing (1), characterized in that: The inner surface of the lock shell (1) is provided with a fixing hole (11), the inner surface of the lock shell (1) is provided with a limiting groove (12), the upper end of the lock shell (1) is fixedly connected with a connecting and fixing mechanism (3), and the inner surface of the lock shell (1) is rotatably connected to the anti-theft core mechanism (2); The anti-theft core mechanism (2) comprises a core body (21), a plurality of sliding holes (22) are provided on both sides of the core body (21), the inner surfaces of the plurality of sliding holes (22) are slidably connected with pin heads (23), one end of the pin head (23) is contact-connected with a pin rod (24), and the outer surface of the pin rod (24) is slidably connected with the fixing hole (11), and one end of the pin rod (24) away from the pin head (23) is fixedly connected with a spring (25).

2. The mechanical lock cylinder with good security according to claim 1, characterized in that: The connecting and fixing mechanism (3) comprises two shell covers (31), the lower ends of the two shell covers (31) are detachably connected to the lock shell (1), the upper ends of the two shell covers (31) and the lock shell (1) are provided with a plurality of connecting holes (32), the inner surfaces of the plurality of connecting holes (32) are fixedly connected with threads (33), the outer surfaces of the threads (33) are meshedly connected with bolts (34), and the upper ends of the bolts (34) are fixedly connected with cross grooves (35).

3. The mechanical lock cylinder with good security according to claim 1, characterized in that: Six limit blocks (26) are fixedly connected to the outer surface of the core body (21), and the outer surfaces of the six limit blocks (26) are rotatably connected to the limit grooves (12).

4. The mechanical lock cylinder with good security according to claim 1, characterized in that: A total of twelve of the sliding holes (22) are provided, and the twelve sliding holes (22) are distributed in two rows. A locking hole (27) is provided in the middle of the core body (21).

5. The mechanical lock cylinder with good security according to claim 2, characterized in that: The two sides of the two shell covers (31) are fixedly connected with hooks (38), the inner surfaces of the hooks (38) are contact-connected with buckles (37), one side of the buckle ring (37) is rotatably connected with a fixing seat (36), and one side of the fixing seat (36) is fixedly connected to the lock shell (1).

6. The mechanical lock cylinder with good security according to claim 2, characterized in that: There are four connection holes (32) in total, and the four connection holes (32) are distributed in a rectangular array.

7. The mechanical lock cylinder with good security according to claim 1, characterized in that: One end of the lock housing (1) is rotatably connected to a paddle shaft (4), and the outer surface of the paddle shaft (4) is fixedly connected to two paddle pins (41).

8. The mechanical lock cylinder with good security according to claim 7, characterized in that: Both ends of the paddle shaft (4) penetrate the lock housing (1) to form insertion holes (42), and the insertion holes (42) are used in conjunction with the lock hole (27).

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