Locking height adjustable anti-loose tongue lock device

Abstract

This utility model discloses an adjustable locking height anti-loosening rotary latch device, relating to the field of rotary latch locks. The device includes a handle, a lock housing, a threaded locking plate, and a spring. The handle is rotatably connected to the top of the lock housing, and the threaded locking plate is threadedly connected to the bottom of the handle. The threaded locking plate is unlocked or locked by rotating the handle. The handle forcibly converts its rotational motion into the linear reciprocating motion and 90-degree rotation of the threaded locking plate. One end of the spring abuts against the handle, and the other end abuts against the threaded locking plate, preventing the threaded locking plate from slipping inside the handle. By threading the handle and the locking plate together, the device allows the handle to rotate the locking plate to the locking angle and then continue rotating, causing the threaded locking plate to move linearly for fine-tuning until it is firmly abutted against the cabinet latch, thus completing the locking process. This method solves the problems of not being able to lock and not locking tightly enough, making this rotary latch lock device suitable for assembled cabinet doors with different tolerances.

Description

Technical Field

[0001] This utility model relates to the field of rotary locks, and in particular to an anti-loosening rotary lock device with adjustable locking height. Background Technology

[0002] Currently, traditional rotary latch locks, widely used in equipment such as server racks and control boxes, rely on the lock, or lock plate, rotating at a fixed angle around its axis to lock and unlock the door. These structures typically use a manual knob or key to directly drive the latch, utilizing the mechanical interference between the latch and the latch on the door frame to achieve locking. The simplicity of this design and the small number of components are the main reasons for its widespread adoption.

[0003] However, traditional rotary latch locks of this type have significant technical limitations. Firstly, they have extremely poor adaptability to the assembly tolerances of cabinet doors. Because the rotation trajectory and final stopping position of the latch are fixed, any dimensional deviations between the door and cabinet due to manufacturing or assembly can easily lead to the latch failing to effectively engage the latch, resulting in problems such as "not locking" or "not locking tightly." Secondly, this structure struggles to meet the stringent sealing performance requirements of modern equipment. In cabinets requiring sealing strips to achieve dustproof and waterproof ratings, the fixed latch travel cannot compensate for the travel required to compress the sealing strip, resulting in insufficient pre-tightening force of the sealing strip after the cabinet door is closed, severely affecting the overall sealing rating of the cabinet. Furthermore, when equipment operates in a vibrating environment, traditional rotary latch locks generally lack effective anti-loosening designs, posing a risk of accidental loosening due to vibration. To address these issues, this invention provides an adjustable locking height anti-loosening rotary latch lock device to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable locking height anti-loosening rotary latch device, solving the problem of its extremely poor adaptability to assembly tolerances of cabinet doors. Because the rotation trajectory and final stopping position of the latch are fixed, any dimensional deviation between the door and cabinet due to manufacturing or assembly can easily lead to the latch failing to effectively engage with the latch, resulting in problems such as "not locking" or "not locking tightly." This structure is ill-suited to meeting the stringent sealing performance requirements of modern equipment. In cabinets requiring sealing strips to achieve dustproof and waterproof ratings, the fixed latch travel cannot compensate for the travel required to compress the sealing strip, resulting in insufficient pre-tightening force of the sealing strip after the cabinet door is closed, severely impacting the overall sealing rating of the cabinet.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable locking height anti-loosening rotary latch device, including a handle, a lock housing, a threaded locking plate, and a spring. The handle is rotatably connected to the top of the lock housing, and the threaded locking plate is threadedly connected to the bottom of the handle. The threaded locking plate is rotated to unlock or lock by rotating the handle. The handle forcibly converts its rotational motion into linear reciprocating motion and rotation within a 90-degree range of the threaded locking plate, allowing the threaded locking plate to slide linearly within the lock housing and tightly abut against the cabinet latch after rotational locking. One end of the spring abuts against the handle, and the other end abuts against the threaded locking plate. The spring prevents the threaded locking plate from slipping within the handle.

[0006] Preferably, the bottom end of the lock housing is provided with a vertical sliding groove and a horizontal sliding groove, which are connected. The threaded locking piece is slidably connected in the horizontal sliding groove and the vertical sliding groove. The vertical sliding groove is used to prevent the threaded locking piece from rotating and to limit its movement. When the threaded locking piece is in the horizontal sliding groove, it is in the unlocked state. When the threaded locking piece is in the vertical sliding groove, it is in the locked state.

[0007] Preferably, a handle insert is fixedly connected to the bottom end of the handle, the threaded locking plate is threadedly connected to the handle insert, an O-ring is fitted on the handle insert, and an indicator is provided at the top end of the handle to indicate the rotation direction for locking and unlocking.

[0008] Preferably, a flat washer is installed at the bottom of the transverse sliding groove, and an open retaining ring is also provided inside the lock housing. The open retaining ring is snapped onto the handle insert. There are two sets of open retaining rings. One set of open retaining rings is located between the flat washer and the threaded locking plate, and the other set of open retaining rings is located at the bottom of the lock housing. The two sets of open retaining rings are used to limit the handle insert inside the lock housing.

[0009] Preferably, the lock housing is provided with a rubber pad, and the lock housing is threaded with a hexagonal nut, which secures the rubber pad to the lock housing.

[0010] The technical effects and advantages of this utility model are as follows: This adjustable locking height anti-loosening rotary latch device uses a threaded connection between the handle and the threaded locking plate. After the handle rotates the locking plate to the locking angle, it can continue to rotate, causing the threaded locking plate to move linearly for fine adjustment until it is tightly abutted against the cabinet latch to complete the locking. This method solves the problems of not being able to lock and not locking tightly, making the latch device suitable for assembled cabinet doors with different tolerances. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram of the overall exploded structure of this utility model; Figure 3 This is a schematic diagram of the overall side structure of this utility model; Figure 4 This is a schematic diagram showing the overall detailed structure of this utility model; Figure 5 This is a top view of the overall structure of this utility model.

[0013] In the diagram: 1. Handle; 11. Handle insert; 12. O-ring; 13. Indicator; 2. Lock case; 21. Vertical sliding groove; 22. Horizontal sliding groove; 3. Threaded locking plate; 4. Spring; 5. Open retaining ring; 6. Flat washer; 7. Rubber pad; 8. Hex nut. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0016] This utility model discloses an adjustable locking height anti-loosening rotary lock device, according to the attached... Figures 1 to 2 As shown, the device includes a handle 1, a lock housing 2, a threaded locking plate 3, and a spring 4. The handle 1 is rotatably connected to the top of the lock housing 2, the threaded locking plate 3 is threadedly connected to the bottom of the handle 1, one end of the spring 4 abuts against the handle 1, and the other end of the spring 4 abuts against the threaded locking plate 3. The spring 4 is used to prevent the threaded locking plate 3 from slipping inside the handle 1.

[0017] In this embodiment, the threaded locking plate 3 is rotated to unlock or lock by rotating the handle 1. The handle 1 forces its own rotational motion into linear reciprocating motion and rotation within a 90-degree range of the threaded locking plate 3, so that the threaded locking plate 3 can slide linearly inside the lock housing 2 after completing the rotational locking and tightly abut against the cabinet latch.

[0018] According to the appendix Figures 2 to 4 As shown, further, the bottom end of the lock housing 2 is provided with a vertical sliding groove 21 and a horizontal sliding groove 22, which are connected. The threaded locking piece 3 is slidably connected in the horizontal sliding groove 22 and the vertical sliding groove 21. The vertical sliding groove 21 is used to limit the rotation of the threaded locking piece 3. When the threaded locking piece 3 is in the horizontal sliding groove 22, it is in the unlocked state. When the threaded locking piece 3 is in the vertical sliding groove 21, it is in the locked state. The bottom end of the handle 1 is fixedly connected to a handle insert 11. The threaded locking piece 3 is threadedly connected to the handle insert 11. An O-ring 12 is fitted on the handle insert 11. The top end of the handle 1 is provided with an indicator 13, which is used to indicate the rotation direction of locking and unlocking.

[0019] In this embodiment, when the threaded locking plate 3 is located in the vertical sliding groove 21, the threaded locking plate 3 rises under the rotation of the handle insert 11, converting the rotational force into an upward linear movement. The vertical sliding groove 21 prevents the threaded locking plate 3 from rotating to both ends. When the threaded locking plate 3 is located at the bottom of the vertical sliding groove 21, the threaded locking plate 3 rotates towards the horizontal sliding groove 22 under the rotation of the handle insert 11. At this time, one side of the vertical sliding groove 21 is empty, and the threaded locking plate 3 can rotate. Under the upward pull of the spring 4, the threaded groove between the threaded locking plate 3 and the handle insert 11 is prevented from slipping.

[0020] According to the appendix Figures 2 to 4 As shown, a flat washer 6 is installed at the bottom of the transverse sliding groove 22, and an open retaining ring 5 is also provided inside the lock housing 2. The open retaining ring 5 is snapped onto the handle insert 11. There are two sets of open retaining rings 5. One set of open retaining rings 5 ​​is located between the flat washer 6 and the threaded locking piece 3, and the other set of open retaining rings 5 ​​is located at the bottom of the lock housing 2. The two sets of open retaining rings 5 ​​are used to limit the handle insert 11 inside the lock housing 2.

[0021] According to the appendix Figures 2 to 4 As shown, it is particularly important to emphasize that the lock housing 2 is covered with a rubber pad 7, and the lock housing 2 is connected to a hexagonal nut 8 by external thread. The hexagonal nut 8 secures the rubber pad 7 to the lock housing 2.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable locking height anti-loosening rotary lock device, comprising a handle (1), characterized in that, The handle (1) also includes a lock case (2), a threaded lock plate (3), and a spring (4). The handle (1) is rotatably connected to the top of the lock housing (2), and the threaded locking plate (3) is threadedly connected to the bottom of the handle (1). The threaded locking plate (3) is rotated to unlock or lock by rotating the handle (1). The handle (1) forces its own rotational motion into the linear reciprocating motion and rotation within a 90-degree range of the threaded locking plate (3), so that the threaded locking plate (3) can slide linearly in the lock housing (2) after completing the rotational locking and tightly abut against the cabinet buckle. One end of the spring (4) abuts against the handle (1), and the other end of the spring (4) abuts against the threaded locking plate (3). The spring (4) is used to prevent the threaded locking plate (3) from slipping in the handle (1).

2. The adjustable locking height anti-loosening rotary lock device according to claim 1, characterized in that, The bottom end of the lock housing (2) is provided with a vertical sliding groove (21) and a horizontal sliding groove (22). The horizontal sliding groove (22) and the vertical sliding groove (21) are connected. The threaded locking piece (3) is slidably connected in the horizontal sliding groove (22) and the vertical sliding groove (21). The vertical sliding groove (21) is used to prevent the threaded locking piece (3) from rotating. When the threaded locking piece (3) is in the horizontal sliding groove (22), it is in the unlocked state. When the threaded locking piece (3) is in the vertical sliding groove (21), it is in the locked state.

3. The adjustable locking height anti-loosening rotary lock device according to claim 2, characterized in that, The bottom end of the handle (1) is fixedly connected to a handle insert (11), the threaded locking plate (3) is threadedly connected to the handle insert (11), an O-ring (12) is fitted on the handle insert (11), and an indicator (13) is provided at the top of the handle (1). The indicator (13) is used to indicate the rotation direction of locking and unlocking.

4. The adjustable locking height anti-loosening rotary lock device according to claim 3, characterized in that, A flat washer (6) is installed at the bottom of the transverse sliding groove (22). An open retaining ring (5) is also provided inside the lock housing (2). The open retaining ring (5) is snapped onto the handle insert (11). There are two sets of open retaining rings (5). One set of open retaining rings (5) is located between the flat washer (6) and the threaded locking piece (3). The other set of open retaining rings (5) is located at the bottom of the lock housing (2). The two sets of open retaining rings (5) are used to limit the handle insert (11) inside the lock housing (2).

5. The adjustable locking height anti-loosening rotary lock device according to claim 1, characterized in that, The lock housing (2) is covered with a rubber pad (7), and the lock housing (2) is threaded with a hexagonal nut (8), which secures the rubber pad (7) to the lock housing (2).

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