Lock with convenient single and double pull switching

Abstract

The utility model discloses a lock convenient for single-pull and double-pull switching, which comprises a lock shell, a limiting piece, a lock cylinder, a row piece and a first elastic piece, and at least two accommodating grooves are arranged on the inner side wall of the installation cavity in a spaced manner, when the key needs to be pulled out, the lock cylinder needs to be rotated to the position, and the row piece is allowed to be popped into the corresponding accommodating groove, when the single-pull structure needs to be used, the limiting piece only needs to be installed into the accommodating groove, the limiting piece prevents the row piece from being popped into the corresponding accommodating groove after unlocking, the key cannot be pulled out, and the key can be smoothly pulled out only when the lock cylinder drives the row piece to rotate to the position of the accommodating groove in the locking position, when the double-pull structure needs to be used, the limiting piece only needs to be taken out, the row piece in the locking position and the unlocking position can be popped into the corresponding accommodating groove, and the key can be smoothly pulled out. Different molds do not need to be opened, the cost of the mold is effectively reduced, and the existing machining demand can be met.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a lock that facilitates switching between single and double pulls. Background Technology

[0002] Locks are devices that serve a sealing function, including locks, keys, and their accessories. They are generally defined as "sealing devices that can only be opened with a key." Besides keys, locks can also be opened using light, electricity, magnetism, sound, and fingerprint signals. Locks are an integral part of people's daily lives; every household needs different types of locks.

[0003] Locks are classified into single-pull and double-pull types based on the key's position. In a single-pull lock, the key can only be removed when the lock is locked, while in a double-pull lock, the key can be removed in both locked and unlocked states. Because the lock housing structures of single-pull and double-pull locks are completely different, two different sets of molds are required for their manufacturing, resulting in high mold costs and failing to meet current manufacturing needs. Therefore, it is necessary to further improve the existing lock structure. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a lock that facilitates switching between single-push and double-push operation. This effectively solves the problems of requiring different molds for processing single-push and double-push locks, high mold costs, and inability to meet current processing requirements.

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

[0006] A lock for convenient single-push / double-push switching includes a lock shell, a limiting member, a lock cylinder, plates, and a first elastic member. The lock shell has a mounting cavity, and the inner sidewall of the mounting cavity is recessed with at least two spaced clearance grooves. The limiting member is detachably disposed in one of the clearance grooves. The lock cylinder is rotatably disposed in the mounting cavity and has a keyhole for inserting an external key. The plates are arranged in multiple spaced rows, each plate being radially movable back and forth in the lock cylinder and rotating with the lock cylinder. The outer end of the plate extends outward from the lock cylinder and extends inward into the corresponding clearance groove as the lock cylinder rotates. The plate has a guide portion that engages with the external key and extends into the keyhole. The first elastic member is sandwiched between the lock cylinder and the plates and causes the plates to move outward toward the outside of the lock cylinder.

[0007] As a preferred embodiment, the clearance grooves are four arranged at equal angles, and the two ends of the plate extend outward from the two side walls of the lock cylinder and into the two symmetrically arranged clearance grooves.

[0008] As a preferred embodiment, each row of plates is provided with a limiting groove, the limiting groove extending in the same direction as the movement direction of the plates, and a limiting rod that cooperates with the limiting groove is provided in the lock cylinder, the limiting rod passing through the limiting groove of each row of plates in sequence.

[0009] As a preferred embodiment, the inner end of the lock cylinder is provided with a mounting base. The inner side of the mounting base is recessed and has a mounting groove extending forward and backward. The mounting groove is provided with a contact foot and a second elastic element. The contact foot is movably disposed in the mounting groove along the extension direction of the mounting groove and rotates back and forth with the mounting base. The outer side of the contact foot abuts against the external battery cell mounting part. The second elastic element is clamped between the inner sidewall of the mounting groove and the contact foot and causes the contact foot to move outward.

[0010] As a preferred embodiment, the mounting base has two symmetrically arranged fixing grooves recessed inward on the end facing the lock cylinder, and the end facing the lock cylinder extends outward with two fixing feet that cooperate with the fixing grooves.

[0011] As a preferred embodiment, a protective cover and a third elastic element are provided on the inner side of the opening of the lock hole. The protective cover is radially movable in the lock hole and covers the opening of the lock hole. The third elastic element is sandwiched between the inner wall of the lock hole and the protective cover and causes the protective cover to cover the opening of the lock hole.

[0012] As a preferred embodiment, the outer wall of the protective cover is provided with a guide surface that engages with an external key.

[0013] As a preferred embodiment, the outer periphery of the lock housing is provided with threads for external installation.

[0014] As a preferred embodiment, the slide block extends outward with a pressing portion, one end of the first elastic member abuts against the inner wall of the lock hole, and the other end of the first elastic member abuts against the pressing portion and causes the slide block to move towards the outside of the lock cylinder.

[0015] As a preferred embodiment, the first elastic element is a spring.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] The mounting cavity has at least two recessed grooves arranged at intervals along its inner sidewall. The outer end of the key plate extends outward from the lock cylinder and extends inward into the corresponding recessed groove as the lock cylinder rotates. When the key needs to be removed, the lock cylinder must be rotated to the correct position, causing the key plate to spring into the corresponding recessed groove. A limiting component is detachably installed in one of the recessed grooves. For a single-pull mechanism, the limiting component is simply inserted into the recessed groove to prevent the key from being removed after unlocking. The key can only be removed when the lock cylinder rotates the key plate to the locking position. For a double-pull mechanism, the limiting component is removed, allowing the key plate to spring into the corresponding recessed groove in both the locking and unlocking positions, enabling the key to be removed smoothly. This design eliminates the need for different molds, effectively reducing mold costs and meeting existing processing requirements.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention in use.

[0020] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention;

[0022] Figure 4 This is a partial assembly diagram of a preferred embodiment of the present invention.

[0023] Explanation of reference numerals in the attached diagram:

[0024] 10. Lock case 101. Mounting cavity

[0025] 102. Leaning groove; 11. Thread.

[0026] 20. Limiting component; 30. Lock cylinder

[0027] 301, Lock hole; 302, Mounting slot

[0028] 303, Fixing groove 31, Limiting rod

[0029] 32. Mounting base; 33. Contact foot

[0030] 34. Second elastic element; 35. Fixed foot

[0031] 36. Protective cover; 361. Guide surface

[0032] 37. Third elastic element; 40. Arrangement of pieces.

[0033] 401, Limiting groove

[0034] 41. Guide section 42. Extrusion section

[0035] 50. First elastic element; 60. Key. Detailed Implementation

[0036] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, which includes a lock housing 10, a limiting member 20, a lock cylinder 30, a plate 40, and a first elastic member 50.

[0037] The lock housing 10 has a mounting cavity 101, and the inner sidewall of the mounting cavity 101 is recessed with at least two spaced relief grooves 102; in this embodiment, there are four relief grooves 102 arranged at equal angles. The outer periphery of the lock housing 10 is provided with threads 11 for external mounting.

[0038] The limiting member 20 is detachably disposed in one of the relief grooves 102.

[0039] The lock cylinder 30 is rotatably disposed in the mounting cavity 101, and a lock hole 301 for inserting an external key 60 is provided in the lock cylinder 30. In this embodiment, a mounting base 32 is provided at the inner end of the lock cylinder 30. The inner side of the mounting base 32 is recessed with a mounting groove 302 extending back and forth. A contact foot 33 and a second elastic member 34 are provided in the mounting groove 302. The contact foot 33 is movably disposed in the mounting groove 302 along the extension direction of the mounting groove 302 and rotates back and forth with the mounting base 32. The outer side of the contact foot 33 abuts against the external battery cell mounting part, thereby realizing the circuit opening and closing, and thus realizing the unlocking and locking process. The second elastic member 34 is clamped between the inner side wall of the mounting groove 302 and the contact foot 33 and causes the contact foot 33 to move outward. The second elastic member 34 is used to ensure the stability of the contact foot 33 in contact with the outside. The mounting base 32 has two symmetrically arranged fixing grooves 303 recessed inward on the end facing the lock cylinder 30. The lock cylinder 30 has two fixing feet 35 extending outward from the end facing the mounting base 32, which mate with the fixing grooves 303. The mounting base 32 is inserted into the fixing grooves 303 via the fixing feet 35 and rotated back and forth by the lock cylinder 30. During unlocking, the lock cylinder 30 drives the mounting base 32 to rotate, which in turn drives the contact feet 33 to rotate. The rotation of the contact feet 33 then switches the circuit on and off, thus achieving both unlocking and locking.

[0040] A protective cover 36 and a third elastic element 37 are provided on the inner side of the opening of the keyhole 301. The protective cover 36 is radially movable in the keyhole 301 and covers the opening of the keyhole 301. The third elastic element 37 is sandwiched between the inner wall of the keyhole 301 and the protective cover 36, causing the protective cover 36 to cover the opening of the keyhole 301. The protective cover 36 is used to seal the opening of the keyhole 301 when the key 60 is not inserted, preventing external dust from entering and affecting the unlocking process. The outer wall of the protective cover 36 is provided with a guide surface 361 that cooperates with the external key 60. The guide surface 361 is designed to push the protective cover 36 to one side when the key 60 is inserted, ensuring the insertion process of the key 60.

[0041] The number of plates 40 is arranged in a series with a back-to-back spacing. Each plate 40 is radially movable in the lock cylinder 30 and rotates back and forth with the lock cylinder 30. The outer end of the plate 40 extends outward from the lock cylinder 30 and extends inward into the corresponding clearance groove 102 as the lock cylinder 30 rotates. The plate 40 is provided with a guide part 41 that cooperates with the external key 60. The guide part 41 extends into the lock hole 301. In this embodiment, the two ends of the plate 40 extend outward from the two side walls of the lock cylinder 30 and extend into two symmetrically arranged clearance grooves 102. Each row of plates 40 is provided with a limiting groove 401, the extending direction of which is the same as the moving direction of the row of plates 40; the lock cylinder 30 is provided with a limiting rod 31 that cooperates with the limiting groove 401, the limiting rod 31 passes through the limiting groove 401 of each row of plates 40 in sequence, and the movement range of the row of plates 40 is guided and limited by the cooperation between the limiting rod 31 and the limiting groove 401. The row of plates 40 integrally extends outward with a pressing part 42.

[0042] The first elastic element 50 is sandwiched between the lock cylinder 30 and the plate 40, causing the plate 40 to move outward toward the outside of the lock cylinder 30. In this embodiment, one end of the first elastic element 50 abuts against the inner wall of the lock hole 301, and the other end of the first elastic element 50 abuts against the pressing part 42, causing the plate 40 to move outward toward the outside of the lock cylinder 30. The first elastic element 50 is a spring.

[0043] The key design feature of this invention is as follows: At least two recessed grooves are recessed inwards on the inner wall of the mounting cavity, spaced apart. The outer end of the key plate extends outwards from the lock cylinder and, as the lock cylinder rotates, extends inwards into the corresponding recessed groove. When the key needs to be removed, the lock cylinder must be rotated to the correct position, causing the key plate to spring into the corresponding recessed groove. A limiting member is detachably installed in one of the recessed grooves. For a single-pull mechanism, the limiting member is simply inserted into the recessed groove, preventing the key from being removed after unlocking. The key can only be removed when the lock cylinder rotates the key plate to the locking position within the recessed groove. For a double-pull mechanism, the limiting member is removed, allowing the key plate to spring into the corresponding recessed groove in both the locking and unlocking positions, enabling the key to be removed smoothly. This design eliminates the need for different molds, effectively reducing mold costs and meeting existing processing requirements.

[0044] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A lock that facilitates single-push and double-push switching, characterized in that: The lock includes a lock housing, a limiting member, a lock cylinder, a set of plates, and a first elastic member. The lock housing has a mounting cavity, and the inner sidewall of the mounting cavity is recessed with at least two spaced clearance grooves. The limiting member is detachably disposed in one of the clearance grooves. The lock cylinder is rotatably disposed in the mounting cavity and has a keyhole for inserting an external key. The set of plates consists of multiple plates arranged at intervals, each set of plates being radially movable back and forth in the lock cylinder and rotating with the lock cylinder. The outer end of each set of plates extends outward from the lock cylinder and extends inward into the corresponding clearance groove as the lock cylinder rotates. Each set of plates has a guide portion that engages with an external key and extends into the keyhole. The first elastic member is sandwiched between the lock cylinder and the set of plates and causes the set of plates to move outward toward the outside of the lock cylinder.

2. The lock with convenient single-pickup / double-pickup switching according to claim 1, characterized in that: The four clearance slots are arranged at equal angles, and the two ends of the plate extend outward from the two side walls of the lock cylinder and into the two symmetrically arranged clearance slots.

3. The lock with convenient single-pickup / double-pickup switching according to claim 1, characterized in that: Each row of plates is provided with a limiting groove, the extending direction of which is the same as the moving direction of the plates. The lock cylinder is provided with a limiting rod that cooperates with the limiting groove, and the limiting rod passes through the limiting groove of each row of plates in sequence.

4. The lock with convenient single-pickup / double-pickup switching according to claim 1, characterized in that: The inner end of the lock cylinder is provided with a mounting base. The inner side of the mounting base is recessed and has a mounting groove extending forward and backward. The mounting groove is provided with a contact foot and a second elastic element. The contact foot is movably disposed in the mounting groove along the extension direction of the mounting groove and rotates back and forth with the mounting base. The outer side of the contact foot abuts against the external battery cell mounting part. The second elastic element is clamped between the inner sidewall of the mounting groove and the contact foot and causes the contact foot to move outward.

5. The lock with convenient single-pickup / double-pickup switching according to claim 4, characterized in that: The mounting base has two symmetrically arranged fixing grooves recessed inward on the end facing the lock cylinder, and the end facing the lock cylinder extends outward with two fixing feet that cooperate with the fixing grooves.

6. The lock for convenient single-pickup / double-pickup switching according to claim 1, characterized in that: A protective cover and a third elastic element are provided on the inner side of the opening of the lock hole. The protective cover is radially movable in the lock hole and covers the opening of the lock hole. The third elastic element is sandwiched between the inner wall of the lock hole and the protective cover and causes the protective cover to cover the opening of the lock hole.

7. The lock for convenient single-pickup / double-pickup switching according to claim 6, characterized in that: The outer wall of the protective cover is provided with a guide surface that engages with an external key.

8. The lock for convenient single-pickup / double-pickup switching according to claim 1, characterized in that: The outer periphery of the lock housing is provided with threads for external installation.

9. The lock for convenient single / double pull switching according to claim 1, characterized in that: The slide block extends outward with a pressing part. One end of the first elastic member abuts against the inner wall of the lock hole, and the other end of the first elastic member abuts against the pressing part and causes the slide block to move towards the outside of the lock cylinder.

10. The lock with convenient single-pick / double-pick switching according to claim 1, characterized in that: The first elastic element is a spring.

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