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CN-224213961-U - U-shaped lock with protection function

CN224213961UCN 224213961 UCN224213961 UCN 224213961UCN-224213961-U

Abstract

The utility model discloses a U-shaped lock with a protection function, and particularly relates to the technical field of U-shaped locks, comprising a lock ring and a lock core, wherein the lock ring is inserted below the lock core, a protection shell mechanism is arranged at the periphery of the lock core, and a protection mechanism is arranged in the protection shell mechanism; the protection shell mechanism comprises a round-corner triangular middle shell and round-corner triangular side shells with center symmetry at two ends of the round-corner triangular middle shell. According to the utility model, through the cooperative design of the protective shell mechanism and the protective mechanism, the staggered closing channel and the eyelet of the sliding type protective mechanism are realized, a double protective system is formed by combining a dustproof plug driven by a spring, rainwater and dust are effectively prevented from invading the lock core, the service life of the lock is prolonged, the waterproof and dustproof defects of the traditional U-shaped lock are overcome, the middle shell and the side shell of the round corner triangle are more in accordance with an ergonomic structure, the surface grooves are antiskid, the round corners are transited to avoid scratches, and the knob design at the end part of the shaft lever supports the free-hand operation of the protective mechanism to displace and reset, so that the use complexity is greatly reduced.

Inventors

  • HONG YU
  • HONG HAOLUN
  • Chen Naiguo

Assignees

  • 温州市安德力五金机械有限公司

Dates

Publication Date
20260508
Application Date
20250515

Claims (7)

  1. 1. The U-shaped lock with the protection function comprises a lock ring (1) and a lock cylinder (2), and is characterized in that the lock ring (1) is inserted below the lock cylinder (2), a protection shell mechanism (3) is arranged at the periphery of the lock cylinder (2), and a protection mechanism (4) is arranged in the protection shell mechanism (3); The protection shell mechanism (3) comprises a round-corner triangular middle shell (34) and round-corner triangular side shells (31) which are symmetrical at the centers of two ends of the round-corner triangular middle shell (34), wherein the round-corner triangular side shells (31) are fixedly connected with butt joint clamping plates (32) close to the round-corner triangular middle shell (34), and the butt joint clamping plates (32) are positioned on two sides of the round-corner triangular middle shell (34); The protection mechanism (4) comprises a waterproof plate (41) and a sliding bottom plate (44) fixedly connected below the waterproof plate (41), a transmission assembly (48) is arranged between the waterproof plate (41) and the sliding bottom plate (44), a dustproof plug (47) is connected in an up-down sliding mode, two limit columns (45) are fixedly connected above the sliding bottom plate (44), and a spring (46) is arranged above the limit columns (45); The bottom ends of the two butt-joint clamping plates (32) are contacted with each other, and the upper ends of the butt-joint clamping plates (32) are close to two sides of the sliding bottom plate (44).
  2. 2. The U-shaped lock with a protection function according to claim 1, wherein a sliding cavity (33) is formed in one side, close to a round-corner triangular middle shell (34), of the round-corner triangular side shell (31), a sliding groove (35) is formed in the inner side of the round-corner triangular middle shell (34), two ends of the sliding groove (35) are aligned with the sliding cavity (33), and the waterproof plate (41) and the sliding bottom plate (44) are connected to the inner sides of the sliding cavity (33) and the sliding groove (35) in a left-right sliding mode.
  3. 3. A U-shaped lock with a protection function according to claim 1, wherein a keyhole (36) is formed above the round triangular middle shell (34), a channel (43) is connected between the waterproof plate (41) and the sliding bottom plate (44), the keyhole (36) is vertically aligned with the key hole (21), and the channel (43) is matched with the keyhole (36) and the key hole (21).
  4. 4. The U-shaped lock with a protection function according to claim 1, wherein limiting side sliding blocks (42) are fixedly connected to two sides of the waterproof plate (41), limiting side grooves (37) are formed in two sides of the upper end of the round-angle triangular middle shell (34), and the limiting side sliding blocks (42) are slidably connected to the inner sides of the limiting side grooves (37).
  5. 5. The U-shaped lock with a protection function according to claim 1, wherein the transmission assembly (48) comprises a plugging abutting block (481) and a shaft lever (483), the shaft lever (483) is connected with the waterproof plate (41) and the limiting side sliding block (42) in a penetrating and rotating mode, a rack (482) is fixedly connected below one end of the plugging abutting block (481), and the rack (482) is connected above the sliding bottom plate (44) in a sliding mode.
  6. 6. The U-shaped lock with a protection function according to claim 5, wherein a gear (484) is connected above one end of the rack (482) in a meshed manner, the gear (484) is penetrated and fixed by a shaft rod (483), and the shaft rod (483) is penetrated and rotatably connected with the waterproof plate (41) and the limiting side sliding block (42).
  7. 7. The U-shaped lock with a protection function according to claim 1, wherein a jack (471) is formed in one side of the dustproof plug (47), an avoidance opening (473) is formed in the other side of the dustproof plug, two limiting cavities (472) are formed in the dustproof plug (47), the top ends of the springs (46) are slidably connected in the limiting cavities (472), and the springs (46) are located in the limiting cavities (472).

Description

U-shaped lock with protection function Technical Field The utility model relates to the technical field of U-shaped locks, in particular to a U-shaped lock with a protection function. Background U-shaped locks are a common type of mechanical locks, known by the letter "U" in shape, and are generally made of hard metal (e.g., steel or alloy) with two ends connected by a lock core to form a closed structure. The lock is designed for preventing theft, is commonly used in the scenes of bicycles, motorcycles, doors and windows and the like, and prevents movement or illegal opening by clamping a fixed object on the lock body. The lock cylinder is a core component, and most of the lock cylinders adopt round keys or complex structures, and the safety depends on the lock cylinder grade (such as C-grade lock cylinders have stronger technical unlocking prevention capability). The U-shaped lock has the advantages of simple structure, firmness and durability, and can resist prying and shearing to a certain extent. The inventor finds that at least the following problems exist in the prior art: The existing U-shaped lock is not protected at the lock hole, so that rainwater can permeate through the protective shell in rainy weather to wet the lock core, rust in the lock core can be caused for a long time, and the service life of the U-shaped lock is limited; In addition, although some U-shaped locks with waterproof plates can shield the buttonhole through the sliding plate, the sliding plate has a certain gradient with the lock hole at the protection shell, so that dust can enter, and the waterproof sliding plate can not slide any more after long-time use. Therefore, the scheme provides the U-shaped lock with the protection function so as to solve the problem. Disclosure of utility model The utility model aims to provide a U-shaped lock with a protection function, which solves the problem that the buttonhole of a shell of the U-shaped lock cannot be waterproof and dustproof in the prior art. In order to solve the technical problems, the basic technical scheme provided by the utility model is as follows: The U-shaped lock with the protection function comprises a lock ring and a lock core, wherein the lock ring is inserted below the lock core, a protection shell mechanism is arranged on the periphery of the lock core, a protection mechanism is arranged in the protection shell mechanism, the protection shell mechanism comprises a round-corner triangular middle shell and round-corner triangular side shells with two symmetrical ends, the round-corner triangular side shells are fixedly connected with butt-joint clamping plates at positions close to the round-corner triangular middle shell, the butt-joint clamping plates are located on two sides of the round-corner triangular middle shell, the protection mechanism comprises a waterproof plate and a sliding bottom plate fixedly connected below the waterproof plate, a transmission assembly is arranged between the waterproof plate and the sliding bottom plate, dust-proof plugs are connected between the waterproof plate and the sliding bottom plate in an up-down sliding mode, two limiting columns are fixedly connected above the sliding bottom plate, springs are arranged above the limiting columns, the bottom ends of the two butt-joint clamping plates are in contact with each other, and the upper ends of the butt-joint clamping plates are close to two sides of the sliding bottom plate. Preferably, a sliding cavity is formed in one side, close to the middle round triangle shell, of the side round triangle shell, a sliding groove is formed in the inner side of the middle round triangle shell, two ends of the sliding groove are aligned with the sliding cavity, and the waterproof plate is connected with the sliding bottom plate in a left-right sliding mode on the inner side of the sliding cavity and the inner side of the sliding groove. Preferably, a keyhole is arranged above the middle shell of the round triangle, a channel is connected between the waterproof plate and the sliding bottom plate, the keyhole is vertically aligned with the key hole, and the channel is matched with the keyhole and the key hole. Preferably, the two sides of the waterproof board are fixedly connected with limiting side sliding blocks, the two sides of the upper end of the middle shell of the round corner triangle are provided with limiting side grooves, and the limiting side sliding blocks are slidably connected to the inner sides of the limiting side grooves. Preferably, the transmission assembly comprises a plugging block and a shaft rod, the shaft rod penetrates through and is rotationally connected with the waterproof plate and the limiting side sliding block, a rack is fixedly connected below one end of the plugging block, and the rack is slidably connected above the sliding bottom plate. Preferably, a gear is connected above one end of the rack in a meshed manner, the gear is penetrated and fixed by a sh