Lock cylinder mounting structure

Abstract

The utility model discloses a lock cylinder installation structure which comprises a lock cylinder and two lock shells arranged on the inner side and the outer side of a door respectively, at least one lock shell is internally provided with a set of gap adjusting mechanism, and the gap adjusting mechanism comprises a transmission piece installed in the lock shell in a sliding mode and an adjusting piece matched with the transmission piece. The transmission piece is in inserted fit with the end of the lock cylinder. The adjusting piece penetrates through the wall of the lock shell, the operating end of the adjusting piece is located outside, and the driving end is connected with the transmission piece. By operating the adjusting piece, the transmission piece can be driven to slide, so that the lock cylinder is driven to move axially, the assembly gap between the front end panel of the lock cylinder and the door frame is eliminated, and the installation perpendicularity is corrected. According to the utility model, the problems of lock cylinder deflection, abnormal sound and unsmooth operation caused by gaps in the traditional mounting mode are effectively solved, and the mounting precision and the use reliability are improved.

Description

Technical Field

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

[0002] Currently, lock cylinders are typically installed on doors using the following method: the lock cylinder is inserted into a pre-drilled hole on one side of the door frame, and then connected to the lock cylinder on both the inner and outer sides of the door via lock seats. The two lock seats are then secured together with bolts. However, this structure has certain drawbacks: during installation, if the front panel of the lock cylinder fails to fully align with the door frame, assembly gaps can easily occur, causing the lock cylinder to lose its perpendicularity to the door frame. Due to the lack of precise adjustment of the lock cylinder's posture during installation, the lock cylinder may be tilted or subjected to uneven stress after the lock seats are tightened. When the user subsequently turns the handle, the lock cylinder may deflect, resulting in abnormal noise or operational resistance, affecting the user experience and the long-term stability of the lock. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a lock cylinder installation structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lock cylinder mounting structure, including a lock cylinder and two lock seats disposed on the inner and outer sides of a door, at least one of the lock seats being provided with a gap adjustment mechanism; the gap adjustment mechanism includes a transmission component slidably mounted in the lock seat and an adjustment component cooperating with the transmission component; the transmission component is inserted into the lock cylinder; the adjustment component passes through the wall of the lock seat, and the adjustment component includes an operating end located outside the lock seat and a driving end connected to the transmission component; by operating the adjustment component, the transmission component can be driven to slide within the lock seat to move the lock cylinder.

[0005] As a preferred embodiment of this utility model, the adjusting component is a screw, with the operating end being the screw head and the driving end being the screw rod; the transmission component is provided with a threaded hole that is threadedly engaged with the screw rod; a compression spring is sleeved on the screw rod, and the compression spring is located between the inner wall of the transmission component and the lock seat.

[0006] As a preferred embodiment of this utility model, the lock seat is provided with a through hole for the adjusting member to pass through, and the diameter of the through hole is smaller than the size of the screw head so as to axially limit the adjusting member.

[0007] As a preferred embodiment of the present invention, the transmission component includes at least one insertion part, and the end of the lock cylinder is provided with a slot for the insertion part to be inserted.

[0008] As a preferred embodiment of this utility model, the transmission component includes a U-shaped connecting part and a plug-in part respectively perpendicularly disposed at its two free ends; the lock cylinder end is symmetrically provided with two slots that cooperate with the plug-in part.

[0009] As a preferred embodiment of this utility model, the lock seat is provided with a movable groove, the width of which is adapted to the width of the U-shaped connecting part, so as to guide the sliding of the transmission component.

[0010] As a preferred embodiment of this utility model, one lock seat is provided with a connecting post with internal threads, and the other lock seat is provided with a connecting hole; the lock cylinder is provided with a clearance hole or clearance groove for the connecting post to pass through; the connecting post extends to the connecting hole after passing through the clearance hole or clearance groove, and is fastened to the connecting hole by fasteners.

[0011] As a preferred technical solution of this utility model, the lock cylinder outer sleeve is provided with a positioning sleeve, the inner wall of the positioning sleeve is provided with a ratchet protrusion, and the outer wall of the lock cylinder is provided with a ratchet bar that meshes with the ratchet protrusion, so that the positioning sleeve can move unidirectionally from the rear end of the lock cylinder toward the panel.

[0012] As a preferred technical solution of this utility model, the positioning sleeve is provided with at least one elastic positioning strip at one end near the lock cylinder panel.

[0013] As a preferred embodiment of this utility model, the elastic positioning strip is inclinedly disposed on the positioning sleeve, and two elastic positioning strips are provided and symmetrically arranged on both sides of the positioning sleeve.

[0014] Compared with existing technologies, the advantages of this invention are as follows: By setting a gap adjustment mechanism consisting of an adjusting component and a transmission component inside the lock housing, the installer can directly operate from the outside of the door (e.g., by rotating a screw) to drive the transmission component to slide, thereby precisely controlling the movement of the lock cylinder to the pre-installed position. This effectively eliminates the assembly gap between the front panel of the lock cylinder and the door frame, ensuring that the lock cylinder is installed vertically on the door frame, fundamentally avoiding subsequent loosening or abnormal noise problems caused by gaps, and improving the reliability of use. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the lock cylinder in its installed state;

[0016] Figure 2 This is a schematic diagram of the structure of the lock cylinder and lock seat in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the lock cylinder and lock seat in this utility model;

[0018] Figure 4This is a schematic diagram of the gap adjustment mechanism in this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of one of the lock seats of this utility model;

[0020] Figure 6 This is a schematic diagram of another lock base of this utility model;

[0021] Figure 7 This is a schematic diagram of the lock cylinder structure in this utility model;

[0022] Figure 8 This is a schematic diagram of the positioning sleeve in this utility model.

[0023] Reference numerals: 1. Lock cylinder; 2. Lock seat; 3. Gap adjustment mechanism; 4. Transmission component; 5. Adjustment component; 6. Operating end; 7. Drive end; 8. Threaded hole; 9. Compression spring; 10. Through hole; 11. Insertion part; 12. Slot; 13. U-shaped connection part; 14. Movable groove; 15. Connecting post; 16. Connecting hole; 17. Positioning sleeve; 18. Racket protrusion; 19. Racket rack; 20. Elastic positioning strip; 21. Aluminum door frame; 22. Glass door leaf. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0026] like Figure 1-8 The lock cylinder mounting structure shown includes a lock cylinder 1 and two lock seats 2 located on the inner and outer sides of the door. At least one of the lock seats 2 is provided with a gap adjustment mechanism 3. The gap adjustment mechanism 3 includes a transmission component 4 slidably installed in the lock seat 2 and an adjustment component 5 cooperating with the transmission component 4. The transmission component 4 is inserted into the lock cylinder 1. The adjustment component 5 passes through the wall (i.e., the outer wall) of the lock seat 2. The adjustment component 5 includes an operating end 6 located outside the lock seat 2 and a driving end 7 connected to the transmission component 4. By operating the adjustment component 5, the transmission component 4 can be driven to slide within the lock seat 2 to move the lock cylinder 1.

[0027] By incorporating a gap adjustment mechanism 3 consisting of an adjusting component 5 and a transmission component 4 inside the lock housing, installers can directly operate from the outside of the door (e.g., by rotating a screw) to drive the transmission component 4 to slide, thereby precisely controlling the movement of the lock cylinder 1 to the pre-installed position. This effectively eliminates the assembly gap between the front panel of the lock cylinder 1 and the door frame, ensuring that the lock cylinder 1 is installed vertically on the door frame. This fundamentally avoids subsequent loosening or abnormal noise problems caused by gaps, improving the reliability of use.

[0028] like Figure 1 As shown, for example, taking an aluminum-glass door as an example, it typically includes an aluminum door frame 21 and a glass door leaf 22. During installation, the lock cylinder 1 must first be inserted into the pre-set mounting hole from the front side of the aluminum profile door frame, then the glass door leaf 22 is installed, and finally the lock shell is installed on the inner and outer sides of the glass door leaf 22. The lock cylinder 1 installation structure of this application is particularly suitable for scenarios with step-by-step installation and precise requirements for the initial installation position of the lock cylinder 1. However, it should be understood that the application scenarios of this application are not limited to aluminum-glass doors. Any door structure that has similar requirements for fine-tuning of installation gaps and verticality correction, such as wooden doors, metal doors, and composite material doors, falls within the protection scope of this application. By fine-tuning the horizontal position of the lock cylinder 1, this application can make the lock cylinder 1 reach the pre-installed position, avoid gaps that cause the lock cylinder 1 to tilt, and ensure that it is ultimately installed perpendicular to the door frame, which greatly improves the installation accuracy.

[0029] The adjusting component 5 is a screw, with its operating end 6 being the screw head and its driving end 7 being the screw rod. The transmission component 4 has a threaded hole 8 that mates with the screw rod. A compression spring 9 is fitted over the screw rod, and this compression spring 9 is positioned between the transmission component 4 and the inner wall of the lock seat 2. The compression spring 9, fitted onto the adjusting screw, continuously provides preload to the transmission component 4, ensuring that the adjusted position remains stable automatically. This effectively prevents loosening or retraction that may occur during use due to vibration or frequent operation, ensuring long-term reliability. This structure allows for fine-tuning of the depth and orientation of the lock cylinder 1 before or after final tightening of the lock seat 2, simplifying the installation process, reducing reliance on the experience and skill level of the installers, and improving the success rate and efficiency of installation.

[0030] The lock seat 2 is provided with a through hole 10 for the adjusting member 5 to pass through. The diameter of the through hole 10 is smaller than the size of the screw head so as to axially limit the adjusting member 5.

[0031] The transmission component 4 includes at least one insertion part 11, and the end of the lock cylinder 1 is provided with a slot 12 for the insertion part 11 to be inserted; the transmission component 4 includes a U-shaped connecting part 13 and insertion parts 11 respectively perpendicularly disposed at its two free ends; the end of the lock cylinder 1 is symmetrically provided with two slots 12 that cooperate with the insertion parts 11.

[0032] The lock seat 2 is provided with a movable groove 14, the width of which is adapted to the width of the U-shaped connecting part 13, so as to guide the sliding of the transmission member 4.

[0033] One of the lock bases 2 has a connecting post 15 with internal threads, and the other lock base 2 has a connecting hole 16. The lock cylinder 1 has a clearance hole or clearance groove for the connecting post 15 to pass through. After passing through the clearance hole or clearance groove, the connecting post 15 extends to the connecting hole 16 and is fastened to the connecting hole 16 by fasteners.

[0034] The lock cylinder 1 is fitted with a positioning sleeve 17. The inner wall of the positioning sleeve 17 is provided with a ratchet protrusion 18. The outer wall of the lock cylinder 1 is provided with a ratchet bar 19 (or ratchet groove) that meshes with the ratchet protrusion 18, so that the positioning sleeve 17 can move unidirectionally from the rear end of the lock cylinder 1 toward the panel.

[0035] At least one elastic positioning strip 20 is provided at one end of the positioning sleeve 17 near the panel of the lock cylinder 1. The elastic positioning strip 20 is inclinedly positioned on the positioning sleeve 17, and two elastic positioning strips 20 are symmetrically arranged on both sides of the positioning sleeve 17. When inserting the lock cylinder 1 into the mounting hole from the front side of the door frame, the installer can first slide the positioning sleeve 17 backward to allow the lock cylinder 1 to be smoothly inserted. After releasing, under the meshing action of the ratchet protrusion 18 and the ratchet rack 19, the positioning sleeve 17 moves forward in one direction and automatically locks itself onto the inner wall of the door frame, thereby achieving quick and temporary pre-fixation of the lock cylinder 1. This prevents the lock cylinder 1 from falling out of the hole due to gravity or operational vibration during subsequent steps such as installing the lock housing, greatly facilitating single-person installation.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A lock cylinder mounting structure, comprising a lock cylinder (1) and two lock seats (2) respectively disposed on the inner and outer sides of a door, characterized in that: At least one of the lock bases (2) is provided with a gap adjustment mechanism (3); the gap adjustment mechanism (3) includes a transmission member (4) slidably installed in the lock base (2) and an adjustment member (5) cooperating with the transmission member (4); the transmission member (4) is inserted into the lock cylinder (1); the adjustment member (5) passes through the wall of the lock base (2), and the adjustment member (5) includes an operating end (6) located outside the lock base (2) and a driving end (7) connected to the transmission member (4); by operating the adjustment member (5), the transmission member (4) can be driven to slide in the lock base (2) to drive the lock cylinder (1) to move.

2. The lock cylinder mounting structure according to claim 1, characterized in that: The adjusting component (5) is a screw, with its operating end (6) being the screw head and its driving end (7) being the screw rod. The transmission component (4) is provided with a threaded hole (8) that is threadedly engaged with the screw rod. The screw rod is fitted with a compression spring (9), which is located between the transmission component (4) and the inner wall of the lock seat (2).

3. The lock cylinder mounting structure according to claim 2, characterized in that: The lock seat (2) is provided with a through hole (10) for the adjusting member (5) to pass through. The diameter of the through hole (10) is smaller than the size of the screw head so as to axially limit the adjusting member (5).

4. The lock cylinder mounting structure according to claim 1, characterized in that: The transmission component (4) includes at least one plug-in portion (11), and the end of the lock cylinder (1) is provided with a slot (12) for the plug-in portion (11) to be inserted.

5. The lock cylinder mounting structure according to claim 4, characterized in that: The transmission component (4) includes a U-shaped connecting part (13) and a plug-in part (11) respectively perpendicularly disposed at its two free ends; the lock cylinder (1) has two slots (12) symmetrically disposed at its end that cooperate with the plug-in part (11).

6. The lock cylinder mounting structure according to claim 5, characterized in that: The lock seat (2) is provided with a movable groove (14), the width of which is adapted to the width of the U-shaped connecting part (13) to guide the sliding of the transmission member (4).

7. The lock cylinder mounting structure according to claim 1, characterized in that: One of the lock seats (2) is provided with a connecting post (15) with internal threads, and the other lock seat (2) is provided with a connecting hole (16); the lock cylinder (1) is provided with a clearance hole or clearance groove for the connecting post (15) to pass through; the connecting post (15) extends to the connecting hole (16) after passing through the clearance hole or clearance groove, and is fastened to the connecting hole (16) by fasteners.

8. The lock cylinder mounting structure according to claim 1, characterized in that: The lock cylinder (1) is fitted with a positioning sleeve (17), the inner wall of the positioning sleeve (17) is provided with a ratchet protrusion (18), and the outer wall of the lock cylinder (1) is provided with a ratchet bar (19) that meshes with the ratchet protrusion (18), so that the positioning sleeve (17) can move unidirectionally from the rear end of the lock cylinder (1) toward the panel.

9. The lock cylinder mounting structure according to claim 8, characterized in that: The positioning sleeve (17) has at least one elastic positioning strip (20) at one end near the lock cylinder (1) panel.

10. The lock cylinder mounting structure according to claim 9, characterized in that: The elastic positioning strip (20) is inclinedly disposed on the positioning sleeve (17), and there are two elastic positioning strips (20) symmetrically arranged on both sides of the positioning sleeve (17).

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