Mounting structure of a lock cylinder

Abstract

The utility model relates to a kind of installation structure of lock cylinder, including lock body and lock cylinder, the installation mouth for the installation of lock cylinder is equipped on lock body, the side surface of lock cylinder is opened with positioning hole, the pin shaft of connecting positioning hole is equipped in lock body, pin shaft can be slidable relative to lock body to insert or exit the positioning hole, the other end of pin shaft relative to positioning hole extends out of lock body, and hand-held part is equipped on the end of pin shaft extended out of lock body. By the cooperation of slidable pin shaft and the positioning hole of lock cylinder side surface, the long screw fixing mode of traditional need accurate alignment and screwing is replaced. When replacing lock cylinder, only need to pull pin shaft out of old lock cylinder by hand-held part, and after new lock cylinder is installed, release pin shaft to complete fixation, operation steps are greatly simplified, and the difficulty of screw alignment is avoided.

Description

Technical Field

[0001] This utility model relates to the field of door locks, and in particular to a lock cylinder mounting structure. Background Technology

[0002] In actual use, door lock cylinders often need to be replaced due to problems such as rust, lost keys, or broken keys. Replacing the lock cylinder requires removing the inner and outer door handles, unscrewing the fixing screws on the lock body, replacing the lock cylinder, and then tightening the fixing screws back in. However, this process is inconvenient because the fixing screws are relatively long and the lock body lacks a guiding structure, making alignment difficult. Furthermore, the new lock cylinder must be aligned with its screw holes before it can be secured, resulting in an inconvenient lock cylinder replacement process.

[0003] Therefore, it is necessary to make further improvements. Summary of the Invention The purpose of this invention is to overcome the above-mentioned problems and provide a lock cylinder installation structure that can solve the problem of lock cylinder being difficult to replace.

[0004] To achieve the above objectives, this utility model provides a lock cylinder mounting structure, including a lock body and a lock cylinder. The lock body is provided with an mounting port for mounting the lock cylinder. The lock cylinder has a positioning hole on its side. The lock body has a pin that connects to the positioning hole. The pin can slide relative to the lock body to insert into or exit the positioning hole. The other end of the pin relative to the positioning hole extends out of the lock body. A handle is provided on the end of the pin that extends out of the lock body.

[0005] In one or more embodiments, the lock body has a slide block inside, and the slide block has a hole for sliding connection with the pin.

[0006] In one or more embodiments, a return spring is sleeved on the pin, the return spring being used to provide elastic force to the pin for insertion into the positioning hole.

[0007] In one or more embodiments, the pin is provided with a force-bearing step, and the two ends of the return spring abut against the force-bearing step and the lock body, respectively.

[0008] In one or more embodiments, the lock cylinder has an arc-shaped guide surface around the perimeter of the positioning hole.

[0009] In one or more embodiments, the handle is a pull ring, and the pin has a pull ring hole for the pull ring to pass through.

[0010] In one or more embodiments, the pull ring hangs naturally under the influence of gravity and is close to the outer wall of the lock body.

[0011] Compared with the prior art, the advantages of this invention are: by using a sliding pin that engages with the positioning hole on the side of the lock cylinder, it replaces the traditional method of fixing with long screws that require precise alignment and screwing. When replacing the lock cylinder, simply pull the pin with the handle to remove the old lock cylinder, insert the new lock cylinder, and release the pin to complete the fixing. The operation steps are greatly simplified, avoiding the difficulty of screw alignment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the pin insertion into the positioning hole in this embodiment; Figure 2 This is a schematic diagram of the pin exiting the positioning hole in this embodiment. Detailed Implementation

[0013] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0014] Please refer to the appendix. Figure 1-2 This application provides a lock cylinder installation structure, including a lock body 1 and a lock cylinder 2. The lock body 1 has an installation port for installing the lock cylinder 2. The lock cylinder 2 has a positioning hole 3 on its side. The lock body 1 has a pin 4 connected to the positioning hole 3 inside. The pin 4 can slide relative to the lock body 1 to insert into or exit the positioning hole 3. The other end of the pin 4 relative to the positioning hole 3 extends out of the lock body 1, and a handle 5 is provided on the end of the pin 4 extending out of the lock body 1. This solution directly replaces the traditional long screw with a sliding pin, fundamentally solving the problem of the difficulty in aligning the fixing screw. When replacing the lock cylinder, the user pulls the pin 4 with the handle 5 to make the pin 4 exit the positioning hole 3. After replacing the lock cylinder, the user pushes the pin 4 back so that the pin 4 is against the side of the lock cylinder. The two hands coordinate with each other, feeling the sliding sensation between the pin 4 and the side of the lock cylinder during the process of pushing the lock cylinder. When the positioning hole 3 corresponds to the pin 4, there will be a feeling of sticking. At this time, the user only needs to forcefully insert the pin 4 into the positioning hole 3.

[0015] The lock body 1 is equipped with a slide block 6 inside, and the slide block 6 has holes for sliding connection with the pin 4. By setting the slide block 6, a dedicated guide and support structure is provided for the sliding of the pin 4. This ensures that the pin 4 maintains linear motion during reciprocating motion, preventing it from swaying, jamming, or wearing inside the lock body 1, thereby improving the smoothness, accuracy, and long-term reliability of the entire locking mechanism.

[0016] A return spring 7 is fitted on the pin 4. The return spring 7 is used to provide the pin 4 with the elastic force to insert into the positioning hole 3. With the return spring 7, the user can free one hand when changing the lock cylinder, and only needs to push the lock cylinder. When the positioning hole 3 and the pin 4 are aligned, the pin 4 can be directly inserted into the positioning hole 3 under the elastic force of the return spring 7.

[0017] The pin 4 is provided with a force-bearing step 8. The two ends of the return spring 7 abut against the force-bearing step 8 and the lock body 1 respectively. The force-bearing step 8 and the lock body 1 provide force support for the return spring 7 so that the return spring 7 can accurately apply the elastic force to the pin 4.

[0018] The lock cylinder 2 has an arc-shaped guide surface around the perimeter of the positioning hole 3. The arc-shaped surface can guide the end of the pin 4 to slide into the positioning hole 3, realizing "error-tolerant" alignment, further reducing the installation difficulty and improving the success rate and efficiency of replacement.

[0019] The handle 5 is a pull ring, and the pin 4 has a pull ring hole for the pull ring to pass through. The pull ring is easy to apply force with the fingers, making operation very convenient and effortless, and the structure is simple. Furthermore, the pull ring hangs down naturally under the action of gravity and is close to the outer wall of the lock body 1, preventing the pull ring from tilting up and affecting the use of the door lock.

[0020] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A lock cylinder mounting structure, comprising a lock body (1) and a lock cylinder (2), wherein the lock body (1) is provided with a mounting port for mounting the lock cylinder (2), characterized in that: The lock cylinder (2) has a positioning hole (3) on its side. The lock body (1) has a pin (4) that connects to the positioning hole (3). The pin (4) can slide relative to the lock body (1) to insert into or exit the positioning hole (3). The other end of the pin (4) extends out of the lock body (1) relative to the positioning hole (3). A handle (5) is provided on the end of the pin (4) that extends out of the lock body (1).

2. The installation structure of a lock cylinder according to claim 1, characterized in that: The lock body (1) is provided with a slide (6) inside, and the slide (6) is provided with a hole that is slidably connected to the pin (4).

3. The installation structure of a lock cylinder according to claim 1, characterized in that: A return spring (7) is fitted on the pin (4), and the return spring (7) is used to provide the pin (4) with the elastic force to insert into the positioning hole (3).

4. The installation structure of a lock cylinder according to claim 3, characterized in that: The pin (4) is provided with a force-bearing step (8), and the two ends of the return spring (7) abut against the force-bearing step (8) and the lock body (1) respectively.

5. The installation structure of a lock cylinder according to claim 1, characterized in that: The lock cylinder (2) has an arc-shaped guide surface around the perimeter of the positioning hole (3).

6. The installation structure of a lock cylinder according to claim 1, characterized in that: The hand-held part (5) is a pull ring, and the pin (4) has a pull ring hole for the pull ring to pass through.

7. The installation structure of a lock cylinder according to claim 6, characterized in that: The pull ring hangs down naturally under the action of gravity and is close to the outer wall of the lock body (1).

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