Cylindrical push-to-open silent mortise lock

Abstract

The utility model discloses a cylindrical thrust mute straight line lock, including handle, bottom plate and prong, handle and prong set up respectively at the both sides of bottom plate, handle can slide relative to bottom plate, prong and handle synchronous movement, its characterized in that handle's side to bottom plate and bottom plate's side to handle are provided with a strip mounting groove respectively, the length direction of strip mounting groove is parallel with the sliding direction of handle, each strip mounting groove is provided with a strip rubber pad respectively, and the spacing is left between two strip rubber pads, and the opposite side of two strip rubber pads is provided with the continuous distribution arc shallow groove respectively, and the limiting protrusion is formed between adjacent arc shallow grooves, and the cylindrical roller is arranged between two oppositely arranged arc shallow grooves, and the axis of arc shallow groove and cylindrical roller is perpendicular to the sliding direction of handle. Technical effect: with rolling friction to replace traditional sliding friction, reduce 90% mechanical noise, double rubber pad layer, absorb the remaining vibration, millimeter level brake is realized to micro gap positioning technology, eliminate traditional lock " spring abnormal sound " industry pain point of the bottom, especially suitable for the scene with mute demand such as maternity house / study room.

Description

Technical Field

[0001] This utility model relates to the field of mechanical lock technology, specifically to a cylindrical thrust silent single-cylinder lock. Background Technology

[0002] In the field of mechanical locks, the single-cylinder lock, as a common sliding lock, is widely used in scenarios such as doors, windows, cabinets, and boxes that require easy opening and locking. By pulling a handle, the fork moves, which in turn moves the bolt, extending or retracting the bolt to complete the locking or unlocking operation.

[0003] However, existing single-cylinder locks generally produce significant noise when the handle is moved (from the locking pin position to the unlocked position, or from the unlocked position to the locking pin position) during actual use, requiring extra caution when using them late at night. Research has found that the main reason for the excessive noise is that the lock incorporates springs or elastic levers. When the handle slides, the internal components move rapidly under the action of the spring, colliding with the "solid" object at the target position and producing a noticeable impact sound.

[0004] In summary, developing a single-bar lock with optimized structure and significantly reduced noise has become a key requirement for improving user experience and product market competitiveness. Utility Model Content

[0005] Therefore, this utility model provides a cylindrical thrust silent single-cylinder lock to solve the technical problem that existing single-cylinder locks have obvious impact noise when opening and closing.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cylindrical thrust silent single-lock includes a handle, a base plate, a shift fork, two strip-shaped rubber pads, and several cylindrical rollers. The handle and shift fork are respectively disposed on both sides of the base plate. The handle can slide relative to the base plate, and the shift fork moves synchronously with the handle. A strip-shaped mounting groove is 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-shaped mounting groove is parallel to the sliding direction of the handle. A strip-shaped rubber pad is disposed in each strip-shaped mounting groove, and a gap is left between two strip-shaped rubber pads. A continuously distributed arc-shaped shallow groove is provided on the opposite side of two strip-shaped rubber pads, and a limiting protrusion is formed between adjacent arc-shaped shallow grooves. A cylindrical roller is disposed between two opposite arc-shaped shallow grooves. The axes of the arc-shaped shallow grooves and the cylindrical rollers are 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 the width of the handle plate.

[0009] Furthermore, the handle has two threaded holes on the side facing the base plate, with the two threaded holes located near both ends of the handle. The base plate has two strip-shaped holes corresponding to the threaded holes, with the length direction of the strip-shaped holes aligned with the sliding direction of the handle. The fork has a through hole in its center. One end of the handle is slidably connected to one end of the base plate via a screw that passes through one strip-shaped hole and is screwed into one threaded hole. The other end of the handle is slidably connected to the other end of the base plate and fixedly connected to the fork via a screw that passes through the through hole, the other strip-shaped hole, and is screwed into the other threaded hole.

[0010] Furthermore, the base plate has a strip-shaped groove on the side opposite to the handle for slidingly mounting the shift fork.

[0011] Furthermore, a plug-in plate is provided at one end of the base plate opposite to the handle, and a locking mounting hole with a thickness extending through is provided at the other end of the base plate.

[0012] Furthermore, the bottom plate has open and close icons on both ends of the side facing the handle.

[0013] Furthermore, the strip-shaped 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 3mm, and the center distance between adjacent arc-shaped shallow grooves is 6.1mm.

[0015] This utility model has the following advantages:

[0016] When no sliding force is applied to the handle, it can stop at any position (because the handle's movement needs to overcome the restriction of the cylindrical rollers by the limiting protrusions); through this limiting method, there is no need to use springs or elastic paddles, so no obvious impact noise is produced; during the movement of the handle relative to the base plate, the rolling property of the cylindrical rollers is used to change sliding friction into rolling friction, further reducing noise; each time the multiple cylindrical rollers move one unit, they need to overcome multiple limiting protrusions, which has a good anti-fall function; when the cylindrical rollers overcome the restriction of the limiting protrusions, the limiting protrusions undergo elastic deformation, and the strip rubber pads can absorb vibration, further reducing noise; the center distance of the arc-shaped shallow grooves and the diameter of the cylindrical rollers are all in the millimeter range, realizing micro-gap positioning and millimeter-level braking.

[0017] The above overview 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 this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 A schematic diagram of the structure of a cylindrical thrust silent single-pin lock provided for an embodiment of this utility model;

[0021] Figure 2 A cross-sectional view of a cylindrical thrust silent one-piece lock provided for an embodiment of this utility model;

[0022] Figure 3 A cross-sectional view of the handle of a cylindrical thrust silent single-pin lock provided for an embodiment of this utility model;

[0023] Figure 4 A cross-sectional structural schematic diagram of the base plate of a cylindrical thrust silent one-piece lock provided for an embodiment of this utility model;

[0024] Figure 5 A cross-sectional view of the shift fork of a cylindrical thrust silent one-piece lock provided for an embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of a strip rubber pad and a cylindrical roller for a cylindrical thrust silent one-piece lock provided in an embodiment of the present utility model.

[0026] In the diagram: 1. Handle; 2. Base plate; 3. Shift 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. Connecting plate; 14. Set mounting hole. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] like Figure 1-6 As shown, this embodiment provides a cylindrical thrust silent single-lock, including a handle 1, a base plate 2, a shift fork 3, two strip-shaped rubber pads 4, and several cylindrical rollers 5. The handle 1 and the shift fork 3 are respectively disposed 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. A strip-shaped mounting groove 6 is provided on the side of the handle 1 facing the base plate 2 and the side of the base plate 2 facing the handle 1, respectively. The length direction of the strip-shaped mounting groove 6 is parallel to the sliding direction of the handle 1. A strip-shaped rubber pad 4 is disposed in each strip-shaped mounting groove 6. A gap is left between two strip-shaped rubber pads 4. A continuously distributed arc-shaped shallow groove 7 is provided on the opposite side of the two strip-shaped rubber pads 4, and a limiting protrusion 8 is formed between adjacent arc-shaped shallow grooves 7. A cylindrical roller 5 is disposed between two oppositely disposed arc-shaped shallow grooves 7. The axes of the arc-shaped shallow grooves 7 and the cylindrical roller 5 are perpendicular to the sliding direction of the handle 1. Generally, the cylindrical roller 5 has multiple, but not all, arc-shaped shallow grooves 7, so as to ensure that the cylindrical roller 5 can roll into different positions of the arc-shaped shallow grooves 7 when the handle 1 moves. Preferably, the strip-shaped 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 3mm, and the center distance between adjacent arc-shaped shallow grooves 7 is 6.1mm.

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

[0030] When the handle 1 slides along the base plate 2, the two strip rubber pads 4 are displaced relative to each other, and the two originally opposite arc-shaped shallow grooves 7 are also displaced relative to each other. 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 method, there is no need to use springs or elastic paddles, so no obvious impact noise is generated; during the movement of the handle 1 relative to the base plate 2, the rolling property of the cylindrical roller 5 is used to change the sliding friction to rolling friction, further reducing noise; each time the multiple cylindrical rollers 5 move one unit, they need to break through multiple limiting protrusions 8, which has a good anti-fall function; when the cylindrical roller 5 breaks through the restriction of the limiting protrusion 8, the limiting protrusion 8 undergoes elastic deformation, 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 range, realizing micro-gap positioning and millimeter-level braking.

[0031] In this embodiment, the handle 1 has an I-shaped cross-section and includes an integrally formed sliding plate, a connecting plate, and a handle plate. The width of the sliding plate is greater than the width of the handle plate. The I-shaped handle 1 makes it easier for users to grip; the relatively wide sliding plate makes the overall design more aesthetically pleasing. Generally, the edges of the handle 1 are rounded to prevent injury and for a smoother, more attractive appearance.

[0032] In this embodiment, the handle 1 has two threaded holes 9 on the side facing the base plate 2, located near both ends of the handle 1. The base plate 2 has two strip holes 10 corresponding to the threaded holes 9, with the length of the strip holes 10 aligned with the sliding direction of the handle 1. The fork 3 has a through hole 11 in its center. The handle 1, base plate 2, and fork 3 are connected by screws. Specifically, one screw passes through the lower strip hole 10 and engages with the lower threaded hole 9, with the screw cap 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, and engages with the upper threaded hole 9. This allows the handle 1 to slide smoothly against the base plate 2, and the fork 3 to move synchronously with the handle 1 (relatively fixed connection). A strip groove 12 for sliding installation of the shift fork 3 is provided on the side of the base plate 2 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 shift fork 3 slides in the strip groove 12, and the fork legs of the shift fork 3 extend away from the base plate 2.

[0033] In this embodiment, a connector plate 13 is provided at the upper end of the side of the base plate 2 opposite to the handle 1, and a through-thickness fixing hole 14 is provided at the lower end of the base plate 2. During installation, the connector plate 13 is inserted into the slot provided in the door or the remaining part of the lock, and the lower end of the base plate 2 is fixed to the door by screws passing through the fixing hole 14, thus completing the installation of the base plate 2. Generally, the handle 1, base plate 2, fork 3, strip rubber pad 4, and cylindrical roller 5 are first assembled into a whole, and then the base plate 2 is fixed to the door. Therefore, the fixing hole 14 cannot be blocked by the handle 1.

[0034] In this embodiment, the bottom plate 2 has open and close icons on both ends of the side facing the handle 1. Generally, when locked, the handle 1 covers the close icon; when unlocked, the handle 1 covers the open icon.

[0035] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A cylindrical thrust silent single-bar 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 disposed on both sides of the base plate (2), the handle (1) is slidable relative to the base plate (2), and the shift fork (3) moves synchronously with the handle (1), characterized in that, A strip-shaped mounting groove (6) is provided on the side of the handle (1) facing the base plate (2) and the side of the base plate (2) facing the handle (1). The length direction of the strip-shaped mounting groove (6) is parallel to the sliding direction of the handle (1). A strip-shaped rubber pad (4) is provided in each strip-shaped mounting groove (6). There is a gap between two strip-shaped rubber pads (4). A continuously distributed arc-shaped shallow groove (7) is provided on the opposite side of the two strip-shaped rubber pads (4). A limiting protrusion (8) is formed between adjacent arc-shaped shallow grooves (7). A cylindrical roller (5) is provided between two opposite arc-shaped shallow grooves (7). 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 single-pin lock according to claim 1, characterized in that, The handle (1) has an I-shaped cross-section and includes an integrally formed sliding plate, a connecting plate, and a handle plate. The width of the sliding plate is greater than the width of the handle plate.

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

4. The cylindrical thrust silent single-pin lock according to claim 1, characterized in that, The base plate (2) has a strip groove (12) on the side opposite to the handle (1) for slidingly mounting the fork (3).

5. The cylindrical thrust silent single-pin lock according to claim 1, characterized in that, A plug plate (13) is provided at one end of the base plate (2) opposite to the handle (1), and a fixing hole (14) with a thickness through is provided at the other end of the base plate (2).

6. The cylindrical thrust silent single-pin lock according to claim 1, characterized in that, The base plate (2) has open and close icons on both ends of the side facing the handle (1).

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

8. The cylindrical thrust silent single-pin 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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