Cylindrical thrust mute linear lock

Abstract

The invention discloses a cylindrical thrust silent linear lock which comprises a handle, a bottom plate and a shifting fork, the handle and the shifting fork are arranged on the two sides of the bottom plate respectively, the handle can slide relative to the bottom plate, the shifting fork and the handle move synchronously, and the cylindrical thrust silent linear lock is characterized in that the side, facing the bottom plate, of the handle and the side, facing the handle, of the bottom plate are each provided with a strip-shaped mounting groove; the length direction of the strip-shaped installation grooves is parallel to the sliding direction of the handle, a strip-shaped rubber mat is arranged in each strip-shaped installation groove, a gap is reserved between the two strip-shaped rubber mats, arc-shaped shallow grooves which are continuously distributed are formed in the opposite sides of the two strip-shaped rubber mats respectively, and limiting protrusions are formed between the adjacent arc-shaped shallow grooves. A cylindrical roller is arranged between the two arc-shaped shallow grooves which are oppositely arranged, and the axes of the arc-shaped shallow grooves and the axis of the cylindrical roller are all perpendicular to the sliding direction of the handle. The technical effects are achieved as follows: rolling friction is used for replacing traditional sliding friction, and 90% of mechanical noise is reduced; the double rubber cushion layers absorb residual vibration; millimeter-level braking is achieved through the micro-gap positioning technology. The industrial pain point of spring abnormal sound of a traditional lock is eliminated; and the device is particularly suitable for mom and baby rooms / studies and other scenes with mute requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical locks, in particular to a cylindrical thrust silent single-stroke lock. Background Art

[0002] In the field of mechanical locks, the single-key lock is a common sliding lock, widely used in situations where doors, windows, cabinets, boxes, and other applications require easy opening and locking. The handle drives the fork, which in turn moves the lock tongue, causing it to retract and extend, thus completing the locking or unlocking operation.

[0003] However, in actual use, existing single-key locks generally have a problem of loud noise when the handle moves (from the locking pin position to the unlocking position, or from the unlocking position to the locking pin position), and one always needs to be very careful when using them late at night. Research has found that the main reasons for the loud noise are: 1. There are structures such as springs or elastic picks. After the handle slides, the internal components move rapidly under the action of the springs, colliding with the "entity" at the target position, producing a noticeable impact sound; 2. The friction between the handle and the guide rail or fixed parts inside the lock body is large, resulting in a noticeable friction sound when sliding. The noise problem is more prominent when sliding quickly or when the lock is worn out after a period of use; 3. The sliding mechanism of some locks uses hard metal materials for direct contact, resulting in the ineffective absorption of vibration energy during the sliding process, thereby amplifying the noise; 4. When used frequently or with insufficient lubrication, the wear of the sliding parts will further aggravate the noise problem.

[0004] In summary, developing a single-key lock with optimized structure and significant noise reduction has become a key requirement for improving user experience and product market competitiveness. Summary of the Invention

[0005] To this end, the present invention provides a cylindrical thrust silent single-stroke lock to solve the technical problem that the existing single-stroke lock has an obvious impact sound when opening and closing.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A cylindrical thrust silent single-word lock, comprising a handle, a base plate, a shift fork, two strip rubber pads and a plurality of cylindrical rollers, the handle and the shift fork being respectively arranged on both sides of the base plate, the handle being able to slide relative to the base plate, the shift fork moving synchronously with the handle, a strip mounting groove being respectively provided on the side of the handle facing the base plate and the side of the base plate facing the handle, the length direction of the strip mounting groove being parallel to the sliding direction of the handle, a strip rubber pad being respectively provided in each of the strip mounting grooves, a spacing being left between the two strip rubber pads, a continuously distributed arc-shaped shallow groove being respectively provided on the facing sides of the two strip rubber pads, a limiting protrusion being formed between adjacent arc-shaped shallow grooves, a cylindrical roller being provided between the two oppositely arranged arc-shaped shallow grooves, the axes of the arc-shaped shallow grooves and the cylindrical rollers being perpendicular to the sliding direction of the handle.

[0008] Furthermore, the handle has an I-shaped cross section and includes an integrally formed sliding plate, a connecting plate, and a handle plate, wherein the width of the sliding plate is greater than that of the handle plate.

[0009] Furthermore, two threaded holes are provided on the side of the handle facing the base plate, and the two threaded holes are respectively located near the two ends of the handle. Two strip holes are provided on the base plate at positions corresponding to the threaded holes, and the length direction of the strip holes is consistent with the sliding direction of the handle. A through hole is provided in the middle of the main body of the fork, and one end of the handle is slidably connected to one end of the base plate through a screw that passes through a strip hole and screws into a threaded hole, and the other end of the handle is slidably connected to the other end of the base plate and fixedly connected to the fork through a screw that passes through the through hole, another strip hole and screws into another threaded hole.

[0010] Furthermore, a strip groove for slidingly mounting the shift fork is provided on a side of the bottom plate away from the handle.

[0011] Furthermore, a plug-in board is provided at one end of the base plate which is away from the handle, and a fixing installation hole which penetrates the thickness is provided at the other end of the base plate.

[0012] Furthermore, open and close lock icons are respectively provided at both ends of the bottom plate on the side facing the handle.

[0013] Furthermore, the strip rubber pad is made of rubber, and the cylindrical roller is made of bearing-grade stainless steel.

[0014] Furthermore, the diameter of the cylindrical roller is 3 mm, and the center distance between adjacent arc-shaped shallow grooves is 6.1 mm.

[0015] The present invention has the following advantages:

[0016] When no sliding force is applied to the handle, the handle can stop at any position (because the movement of the handle needs to overcome the restriction of the limiting protrusion on the cylindrical roller); through this limiting form, there is no need to use springs or elastic picks, etc., so no obvious impact sound will be generated; in the process of the handle moving relative to the base plate, the rolling properties of the cylindrical roller are used to change the sliding friction into rolling friction, further reducing the noise; each time the multiple cylindrical rollers move one unit, they need to break through multiple limiting protrusions, which has a good anti-fall function; when the cylindrical roller breaks through the restriction of the limiting protrusion, the limiting protrusion is elastically deformed, and the strip rubber pad can absorb vibration, further reducing noise; the center distance of the arc-shaped shallow groove and the diameter of the cylindrical roller are both in the millimeter level, realizing micro-gap positioning and millimeter-level braking.

[0017] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes should still fall within the scope of the technical contents disclosed in the present invention without affecting the efficacy and objectives that can be achieved by the present invention.

[0020] Figure 1 A schematic structural diagram of a cylindrical thrust silent lock provided by an embodiment of the present invention;

[0021] Figure 2 A schematic cross-sectional view of a cylindrical thrust silent lock provided in an embodiment of the present invention;

[0022] Figure 3 A schematic cross-sectional view of a handle of a cylindrical thrust silent lock provided by an embodiment of the present invention;

[0023] Figure 4 A schematic cross-sectional view of a bottom plate of a cylindrical thrust silent lock provided by an embodiment of the present invention;

[0024] Figure 5 A schematic cross-sectional view of a shift fork of a cylindrical thrust silent lock provided by an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of a strip rubber pad and a cylindrical roller of a cylindrical thrust silent lock provided in an embodiment of the present invention.

[0026] In the figure: 1. Handle; 2. Bottom plate; 3. Fork; 4. Strip rubber pad; 5. Cylindrical roller; 6. Strip mounting groove; 7. Arc-shaped shallow groove; 8. Limiting protrusion; 9. Threaded hole; 10. Strip hole; 11. Through hole; 12. Strip groove; 13. Plug-in plate; 14. Tightening mounting hole. DETAILED DESCRIPTION

[0027] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0028] like Figure 1-6 As shown, this embodiment provides a cylindrical thrust silent lock, comprising a handle 1, a base plate 2, a shift fork 3, two strip rubber pads 4, and a plurality of cylindrical rollers 5. The handle 1 and the shift fork 3 are respectively arranged on either side of the base plate 2. The handle 1 can slide relative to the base plate 2, and the shift fork 3 moves synchronously with the handle 1. A strip mounting groove 6 is provided on the side of the handle 1 facing the base plate 2 and on the side of the base plate 2 facing the handle 1. The length direction of the strip mounting groove 6 is parallel to the sliding direction of the handle 1. A strip rubber pad 4 is provided in each strip mounting groove 6, with a spacing between the two strip rubber pads 4. The facing sides of the two strip rubber pads 4 are respectively provided with continuously distributed arc-shaped shallow grooves 7, with a limiting protrusion 8 formed between adjacent arc-shaped shallow grooves 7. A cylindrical roller 5 is provided between the two oppositely arranged arc-shaped shallow grooves 7. The axes of the arc-shaped shallow grooves 7 and the cylindrical roller 5 are both perpendicular to the sliding direction of the handle 1. Typically, the cylindrical roller 5 is provided with multiple, but not all, arcuate shallow grooves 7, ensuring that the cylindrical roller 5 can roll into arcuate shallow grooves 7 at different locations when the handle 1 moves. Preferably, the strip rubber pad 4 is made of rubber, and the cylindrical roller 5 is made of bearing-grade stainless steel. Preferably, the diameter of the cylindrical roller 5 is 3 mm, and the center-to-center distance between adjacent arcuate shallow grooves 7 is 6.1 mm.

[0029] The cylindrical thrust silent single-piece lock provided in this embodiment is "silent" in that the noise is greatly reduced compared with the prior art, but it is not completely silent.

[0030] When the handle 1 slides along the base plate 2, the two strip rubber pads 4 produce relative displacement, and the two originally opposite arc-shaped shallow grooves 7 also produce relative displacement. The cylindrical roller 5 installed between the two opposite arc-shaped shallow grooves 7 will squeeze the limiting protrusion 8 of one of the strip rubber pads 4, break through the original limit, and enter the new limiting space formed by the two opposite arc-shaped shallow grooves 7. Therefore, when no sliding force is applied to the handle 1, the handle 1 can stop at any position (because the movement of the handle 1 needs to overcome the restriction of the limiting protrusion 8 on the cylindrical roller 5); through this limiting form, there is no need to use springs or elastic picks, etc., so no obvious impact sound will be generated; in the process of the handle 1 moving relative to the base plate 2, the rolling properties of the cylindrical roller 5 are used to change the sliding friction into rolling friction, further reducing the noise; each time the multiple cylindrical rollers 5 move one unit, they need to break through multiple limiting protrusions 8, which has a better anti-fall function; when the cylindrical roller 5 breaks through the restriction of the limiting protrusion 8, the limiting protrusion 8 is elastically deformed, and the strip rubber pad 4 can absorb vibration, further reducing noise; the center distance of the arc-shaped shallow groove 7 and the diameter of the cylindrical roller 5 are both in the millimeter level, realizing micro-gap positioning and millimeter-level braking.

[0031] In this embodiment, the handle 1 has an I-shaped cross-section and consists of an integrally formed sliding plate, connecting plate, and handle plate. The sliding plate is wider than the handle plate. The I-shaped handle 1 is easier for the user to grasp; the relatively wide sliding plate enhances the overall aesthetic. Generally, the edges of the handle 1 are rounded to prevent injury while also creating a smooth, aesthetically pleasing design.

[0032] In this embodiment, two threaded holes 9 are provided on the side of the handle 1 facing the base plate 2. The two threaded holes 9 are respectively located near the two ends of the handle 1; two strip holes 10 are provided at positions on the base plate 2 corresponding to the threaded holes 9, and the length direction of the strip holes 10 is consistent with the sliding direction of the handle 1; a through hole 11 is provided in the middle of the main body of the fork 3. The handle 1, the base plate 2 and the fork 3 are connected by screws. Specifically, one screw passes through the lower strip hole 10 and is screwed into the lower threaded hole 9. The size of the screw cap is larger than the width of the strip hole 10. The other screw passes through the through hole 11 and the upper strip hole 10 of the fork 3 in sequence and is screwed into the upper threaded hole 9. In this way, the handle 1 is slidably connected to the base plate 2, and the fork 3 is moved synchronously with the handle 1 (relatively fixed connection). A strip groove 12 for slidingly installing the fork 3 is provided on the side of the base plate 2 facing away from the handle 1. The length direction of the strip groove 12 is consistent with the sliding direction of the handle 1. The main body of the fork 3 slides in the strip groove 12, and the fork legs of the fork 3 extend toward the side away from the base plate 2.

[0033] In this embodiment, a plug-in plate 13 is provided at the upper end of the base plate 2, facing away from the handle 1. A through-the-thickness mounting hole 14 is provided at the lower end of the base plate 2. During installation, the plug-in plate 13 is inserted into a slot provided in the door or the remaining portion of the lock. The lower end of the base plate 2 is secured to the door via screws inserted through the mounting hole 14, completing the installation of the base plate 2. Typically, the handle 1, base plate 2, shift fork 3, strip rubber pad 4, and cylindrical roller 5 are assembled into a single unit before the base plate 2 is secured to the door. Therefore, the mounting hole 14 cannot be obstructed by the handle 1.

[0034] In this embodiment, the two ends of the bottom plate 2 facing the handle 1 are respectively provided with an open and close lock icon. Generally, after locking, the handle 1 covers the close lock icon; after unlocking, the handle 1 covers the open lock icon.

[0035] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A cylindrical thrust silent lock, comprising a handle (1), a base plate (2) and a shift fork (3), wherein the handle (1) and the shift fork (3) are respectively arranged on both sides of the base plate (2), the handle (1) can slide relative to the base plate (2), and the shift fork (3) moves synchronously with the handle (1), characterized in that: A strip mounting groove (6) is provided on one side of the handle (1) facing the base plate (2) and on one side of the base plate (2) facing the handle (1), the length direction of the strip mounting groove (6) is parallel to the sliding direction of the handle (1), a strip rubber pad (4) is provided in each strip mounting groove (6), a spacing is left between the two strip rubber pads (4), and continuously distributed arc-shaped shallow grooves (7) are provided on the opposite sides of the two strip rubber pads (4), and a limiting protrusion (8) is formed between adjacent arc-shaped shallow grooves (7), and a cylindrical roller (5) is provided between the two oppositely arranged arc-shaped shallow grooves (7), and the axes of the arc-shaped shallow grooves (7) and the cylindrical roller (5) are perpendicular to the sliding direction of the handle (1).

2. The cylindrical thrust silent lock according to claim 1, characterized in that: The handle (1) has an I-shaped cross section and comprises an integrally formed sliding plate, a connecting plate and a handle plate, wherein the width of the sliding plate is greater than the width of the handle plate.

3. The cylindrical thrust silent lock according to claim 1, characterized in that: Two threaded holes (9) are provided on the side of the handle (1) facing the base plate (2), and the two threaded holes (9) are respectively located near the two ends of the handle (1). Two strip holes (10) are provided on the base plate (2) at positions corresponding to the threaded holes (9), and the length direction of the strip holes (10) is consistent with the sliding direction of the handle (1). A through hole (11) is provided in the middle of the main body of the fork (3). One end of the handle (1) is slidably connected to one end of the base plate (2) through a screw rod that passes through a strip hole (10) and is screwed into a threaded hole (9), and the other end of the handle (1) is slidably connected to the other end of the base plate (2) and fixedly connected to the fork (3) through a screw rod that passes through the through hole (11), another strip hole (10) and is screwed into another threaded hole (9).

4. The cylindrical thrust silent lock according to claim 1, characterized in that: A strip-shaped groove (12) for slidingly mounting the shift fork (3) is provided on a side of the bottom plate (2) facing away from the handle (1).

5. The cylindrical thrust silent lock according to claim 1, characterized in that: A plug-in board (13) is provided at one end of the base plate (2) facing away from the handle (1), and a fixing installation hole (14) penetrating the thickness is provided at the other end of the base plate (2).

6. The cylindrical thrust silent lock according to claim 1, characterized in that: Open and close lock icons are respectively provided at both ends of the bottom plate (2) on the side facing the handle (1).

7. The cylindrical thrust silent lock according to claim 1, characterized in that: The strip-shaped rubber pad (4) is made of rubber, and the cylindrical roller (5) is made of bearing-grade stainless steel.

8. The cylindrical thrust silent lock according to claim 1, characterized in that: The diameter of the cylindrical roller (5) is 3 mm, and the center distance between adjacent arc-shaped shallow grooves (7) is 6.1 mm.

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