Folding lock

Abstract

The utility model discloses a folding lock, relates to lockset field, including lock body, lock cylinder and a plurality of mutually connected lock bar, lock body bottom is equipped with the mounting hole, the lowermost lock bar end portion is equipped with the rotatory piece that inserts into the mounting hole and rotatingly installs, the circumferential surface of rotatory piece middle position is equipped with the annular groove, and the annular groove is equipped with the lock cylinder. The lock body is provided with an insertion hole and a limiting piece inserted into the insertion hole and the annular groove at the position corresponding to the annular groove. The utility model has the advantages of simple structure and low processing cost.

Description

Technical Field

[0001] This utility model relates to the field of locks, specifically to a folding lock. Background Technology

[0002] As people increasingly value environmental protection and their own health, the number of cyclists is also gradually increasing. As consumers demand more personalized comfort from bicycles, and a good bicycle is not cheap, the problem of bicycle theft arises.

[0003] Existing folding locks, such as the bicycle folding lock disclosed in CN 211144081 U on July 31, 2020, have one end of the lock bar hinged to the lock body. However, this structure has too many parts and requires too many molds in the production process, resulting in high processing costs. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a folding lock with a simple structure and low processing cost.

[0005] The technical solution adopted by this utility model is as follows: a folding lock, including a lock body, a lock cylinder, and several lock bars connected to each other. The bottom of the lock body is provided with a mounting hole, and the bottommost end of the lock bar is provided with a rotating component that is inserted into the mounting hole and rotatably installed. The circumferential surface of the rotating component is provided with an annular groove. The lock body is provided with a insertion hole and a limiting component that is inserted into the insertion hole and the annular groove at the position corresponding to the annular groove.

[0006] The limiting component uses knurled pins that mate with the insertion hole.

[0007] The limiting component is a bolt that mates with the thread of the insertion hole.

[0008] The number of the insertion holes and the limiting members are both two, and they are symmetrically arranged on both sides of the annular groove.

[0009] The lock cylinder has an eccentrically positioned columnar body at its tail end. The lock body has a vertically sliding bolt. The columnar body is movably connected to the bolt and is used to drive the bolt up and down when the lock cylinder rotates. The uppermost end of the lock bar has a slot for the bolt to be inserted and pulled out.

[0010] The side wall of the latch is provided with a groove for the movable installation of the columnar body.

[0011] The lock cylinder and the lock bar are on the same straight line. The front surface of the lock body is provided with a groove, and a cover plate that is slidably installed in the groove and used to cover the lock cylinder is provided.

[0012] The side walls of the slide are provided with several stop grooves, and the cover plate is provided with elastic claws on both sides corresponding to the stop grooves.

[0013] It also includes a housing fitted over the lock body, the housing having a through hole for inserting a key into the lock cylinder, and a cover having a handle that passes through the through hole and is exposed to the outside.

[0014] The beneficial effects of this utility model are as follows: This technical solution provides a rotating component at the bottom end of the lock bar. After the rotating component is inserted into the insertion hole, it can achieve relative rotation between the rotating component and the lock body. In addition, an annular groove is provided on the rotating component, and a limiting component is inserted into the insertion hole so that the rotating component can only rotate within the lock body and will not be pulled out of the lock body. The whole structure is very simple and has the advantage of low processing cost. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the folding lock according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the disassembled structure of a folding lock.

[0017] Figure 3 This is a structural diagram of the lock cylinder and the bolt.

[0018] Figure 4 This is a schematic diagram of the lock body. Detailed Implementation

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0020] As shown in the figure, a folding lock includes a lock body 1, a lock cylinder 2, and several interconnected lock bars 3. The lock body 1 has a mounting hole 4 at its bottom. The lowermost lock bar 3 has a rotating component 5 that is inserted into the mounting hole 4 and rotatably mounted. The rotating component 5 has an annular groove 6 on its circumferential surface at its middle position. The lock body 1 has an insertion hole 7 at the position corresponding to the annular groove 6 and a limiting component 8 that is inserted into the insertion hole 7 and the annular groove 6. This technical solution sets a rotating component at the lowermost lock bar end, which can achieve relative rotation between the rotating component and the lock body after being inserted into the insertion hole. In addition, the annular groove is set on the rotating component, and the limiting component is inserted into the insertion hole, so that the rotating component can only rotate within the lock body and will not be pulled out of the lock body. The whole structure is very simple and has the advantage of low processing cost.

[0021] The cross-section of the part of the rotating component that is inserted into the lock body is I-shaped. After the limiting component is inserted, it can effectively limit the movement and prevent the rotating component from being pulled out by external force.

[0022] The limiting element in this embodiment has multiple embodiments;

[0023] In Example 1, the limiting component 8 is a knurled pin that is riveted to the insertion hole 7. Installation is completed by pressing the knurled pin into the insertion hole, which is convenient.

[0024] Example 2: The limiting member 8 is a bolt that is threaded to the insertion hole 7, which has the advantage of easy disassembly and assembly. This example is not shown.

[0025] The number of the insertion hole 7 and the limiting member 8 are both two, and they are symmetrically arranged on both sides of the annular groove 6 to ensure the working stability of the rotating part.

[0026] The lock cylinder 2 has an eccentrically positioned columnar body 9 at its tail end. The lock body 1 has a vertically sliding bolt 10 inside. The columnar body 9 is movably connected to the bolt 10, and the columnar body 9 drives the bolt 10 to move up and down when the lock cylinder 2 rotates. The uppermost end of the lock bar 3 has a slot 11 for the bolt 10 to be inserted into and removed. Because the columnar body is eccentrically positioned, its height changes when it is rotated by the lock cylinder. Therefore, the movable connection between the columnar body and the bolt can synchronously drive the bolt to move up and down within the lock body. When the bolt moves upward, it inserts into the slot of the lock bar, locking the two together. When the bolt moves downward, it disengages from the slot, separating the bolt from the lock bar. This design has the advantages of simple structure and good practicality.

[0027] The side wall of the latch 10 is provided with a groove 19 for the movable installation of the column 9. In this embodiment, the groove runs through both sides of the latch. The groove runs through both sides without restricting the movement of the column. The width of the groove is slightly larger than the outer diameter of the column, so that the column can move in the groove and drive the latch to move up and down.

[0028] The lock cylinder 2 and the lock bar 3 are on the same straight line. The front surface of the lock body 1 is provided with a groove 12. A cover plate 13 is provided in the groove 12 and is slidably installed to cover the lock cylinder 2. In this embodiment, the cover plate can cover the lock cylinder by sliding up and down to prevent foreign objects from entering the lock cylinder. After the lock cylinder is exposed, the key can be inserted.

[0029] The slide groove 12 has several gear slots 14 on both sides, and the cover plate 13 has elastic claws 15 on both sides corresponding to the gear slots 14. The elastic claws can be embedded in the gear slots to position the cover plate.

[0030] It also includes a housing 16 fitted outside the lock body 1. The housing 16 has a through hole 17 for inserting a key into the lock cylinder 2. The cover plate 13 has a handle 18 that passes through the through hole 17 and is exposed outside. The operator can use the handle to transmit force to the cover plate, causing it to slide up and down inside the lock body.

[0031] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

Claims

1. A folding lock, comprising a lock body (1), a lock cylinder (2), and a plurality of interconnected lock bars (3), characterized in that: The lock body (1) has a mounting hole (4) at the bottom, and the bottommost lock bar (3) has a rotating part (5) that is inserted into the mounting hole (4) and rotated. The rotating part (5) has an annular groove (6) on its circumferential surface at the middle position. The lock body (1) has a socket (7) at the position corresponding to the annular groove (6) and a limiting part (8) that is inserted into the socket (7) and the annular groove (6).

2. The folding lock according to claim 1, characterized in that: The limiting member (8) is made of knurled pins that are riveted to the insertion hole (7).

3. The folding lock according to claim 1, characterized in that: The limiting member (8) is made of a bolt that is threaded into the insertion hole (7).

4. The folding lock according to claim 1, characterized in that: The number of the insertion hole (7) and the limiting member (8) are both two, and they are symmetrically arranged on both sides of the annular groove (6).

5. The folding lock according to claim 1, characterized in that: The lock cylinder (2) has an eccentrically positioned columnar body (9) at its tail end. The lock body (1) has a vertically sliding bolt (10) inside. The columnar body (9) is movably connected to the bolt (10), and the columnar body (9) is used to drive the bolt (10) to move up and down when the lock cylinder (2) rotates. The uppermost lock bar (3) has a slot (11) for the bolt (10) to be inserted and pulled out.

6. The folding lock according to claim 5, characterized in that: The side wall of the latch (10) is provided with a groove (19) for the movable installation of the column (9).

7. The folding lock according to claim 1, characterized in that: The lock cylinder (2) and the lock bar (3) are on the same straight line. The front surface of the lock body (1) is provided with a groove (12), and a cover plate (13) is provided in the groove (12) for sliding installation and for covering the lock cylinder (2).

8. The folding lock according to claim 7, characterized in that: The slide (12) has several gear slots (14) on both sides, and the cover plate (13) has elastic claws (15) on both sides corresponding to the gear slots (14).

9. The folding lock according to claim 7, characterized in that: It also includes a housing (16) fitted over the lock body (1), the housing (16) having a through hole (17) for inserting a key into the lock cylinder (2), and the cover plate (13) having a handle (18) that passes through the through hole (17) and is exposed to the outside.

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