Noise reduction lock

Abstract

The utility model relates to the technical field of locksets, and discloses a noise reduction lockset which comprises a shell. The first spring bolt is arranged in the shell in a sliding manner; the first buffer part is arranged in the shell; the shifting peach is rotationally arranged in the shell and is in linkage with the first spring bolt, an abutting part is formed on one side of the shifting peach, and when the shifting peach rotates by a preset angle, the abutting part abuts against the first buffering piece. According to the noise reduction lock, the first buffer part is arranged in the shell and can be matched with the abutting part on the shifting peach, after the shifting peach rotates by the preset angle, the abutting part abuts against the first buffer part, compared with direct collision with other limiting structures, noise can be remarkably reduced, and it is ensured that the noise reduction lock is not prone to falling off when used daily. And no large noise is generated inside.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, and in particular to a noise reduction lock. Background Art

[0002] When the lock is in use, the collision and friction between its components will produce a certain amount of noise. Utility Model Content

[0003] The utility model is made to solve the above technical problems, and one of its purposes is to provide a noise reduction lock that can reduce the noise generated by the operation of its internal structure.

[0004] According to one embodiment of the utility model, a noise reduction lock is provided, comprising: a shell; a first locking tongue slidably arranged in the shell; a first buffer member arranged in the shell; a paddle rotatably arranged in the shell and linked with the first locking tongue, with an abutment portion formed on one side, wherein when the paddle rotates by a preset angle, the abutment portion abuts against the first buffer member.

[0005] As an embodiment, the first buffer member has a concave buffer groove; the abutment portion extends into the buffer groove, and when the shifting disk rotates by a preset angle, the abutment portion abuts against a side surface of the buffer groove.

[0006] As an embodiment, a buffer plate located between the abutting portion and the inner wall of the shell is formed at one end of the buffer groove.

[0007] As an embodiment, at least two collision surfaces are formed in the buffer groove, and when the paddle is rotated forwards and backwards by a preset angle, two sides of the abutment portion respectively abut against the collision surfaces.

[0008] As an embodiment, the first buffer member is rotatably mounted on the housing, and a side away from the first locking tongue abuts against an inner wall of the housing.

[0009] As an embodiment, a first slide groove is formed on the first locking tongue; a sliding shaft slidingly arranged in the first slide groove is formed on the other side of the paddle; wherein when the paddle rotates, the sliding shaft abuts against the side of the first slide groove, driving the first locking tongue to slide into or out of the shell.

[0010] As an embodiment, it further includes: a second buffer member, which is arranged at two ends of the first sliding groove.

[0011] As an embodiment, the second buffer is an arc-shaped structure having the same shape as the end surface of the first slide groove; the end surface of the second buffer is formed with a connecting portion extending toward the periphery and connected to the side wall of the first lock tongue.

[0012] As an embodiment, the first buffer member is opposite to the inner end of the first locking tongue, and when the first locking tongue slides into the housing, the inner end abuts against the inner wall of the buffer groove.

[0013] As an embodiment, it further includes: a second locking tongue, which is slidably arranged in the shell, and a protruding buffer strip is arranged on the collision surface of the second locking tongue.

[0014] According to the above description and practice, the noise reduction lock described in the utility model is provided with a first buffer member in the shell, which can cooperate with the abutment part on the peach. When the peach is rotated by a preset angle, the abutment part abuts against the first buffer member. Compared with direct collision with other limiting structures, the noise can be significantly reduced, ensuring that the noise reduction lock will not have loud noise inside during daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a three-dimensional structural schematic diagram of a noise reduction lock involved in one embodiment of the utility model.

[0016] Figure 2 The figure is a schematic diagram of the internal structure of a noise reduction lock in a locked state according to an embodiment of the present utility model.

[0017] Figure 3 The figure is a schematic diagram of the internal structure of a noise reduction lock in an unlocked state according to an embodiment of the present utility model.

[0018] Figure 4a and Figure 4b The present invention is a schematic structural diagram of a first buffer member in a noise reduction lock according to an embodiment of the present invention at two different viewing angles.

[0019] The reference numerals in the figure are:

[0020] 1. Shell 2. First lock tongue

[0021] 3. First buffer 4. Peach

[0022] 5. Second buffer 6. Second lock tongue

[0023] 7. Buffer strip 11. Column

[0024] 21. First chute 22. Second chute

[0025] 31. Buffer slot 32. Buffer plate

[0026] 41. abutment portion 42. sliding shaft DETAILED DESCRIPTION

[0027] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0028] In addition, the accompanying drawings are only schematic diagrams of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated descriptions will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc.; the terms "first", "second", etc. are only used as marks, and are not restrictions on the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] In this embodiment, a noise reduction lock is disclosed. Please refer to Figures 1 to 4b The noise reduction lock in this embodiment mainly includes a housing 1, a first locking tongue 2, a first buffer 3 and a nut 4. The housing 1 is formed by buckling two half shells, and is used to accommodate the first locking tongue 2, the first buffer 3 and the nut 4. A locking tongue hole is provided on one side of the housing 1 for the first locking tongue 2 to pass through. The first locking tongue 2 is slidably arranged in the housing 1, and its left end can extend out of the housing 1 or retract into the housing 1 through the locking tongue hole to achieve locking and unlocking.

[0031] The first buffer member 3 is disposed in the housing 1. The peach 4 is rotatably disposed in the housing 1, and is linked with the first locking tongue 2. When the peach 4 rotates, the first locking tongue 2 can be driven to extend out of the housing 1 or retract into the housing 1 through the locking tongue hole. An abutment portion 41 is formed on one side of the peach 4, wherein when the peach 4 rotates by a preset angle, the abutment portion 41 abuts against the first buffer member 3. For example, when the peach 4 is rotated forward and the first locking tongue 2 is retracted into the housing 1, one side of the abutment portion 41 abuts against one side of the first buffer member 3, which can reduce the noise generated by the collision.

[0032] Furthermore, a concave buffer groove 31 is formed on the first buffer member 3, and the abutment portion 41 extends into the buffer groove 31. When the peach 4 is rotated by a preset angle, the abutment portion 41 abuts against the side of the buffer groove 31. For example, when the peach 4 is rotated forward and the first locking tongue 2 is retracted into the shell 1, one side of the abutment portion 41 abuts against one side of the buffer groove 31, which can reduce the noise generated by the collision; for another example, when the peach 4 is rotated backward and the first locking tongue 2 is extended out of the shell 1, the other side of the abutment portion 41 abuts against the other side of the buffer groove 31, which can reduce the noise generated by the collision. By providing the buffer groove 31, the collision noise can be reduced in both directions.

[0033] In a conventional lock, after the peach 4 rotates to a preset angle, it will be restricted by structures such as a lock tongue or a stop block to stop rotating, but there is collision noise in the process. The noise reduction lock in the utility model is provided with a first buffer member 3 in the housing 1, which can cooperate with the abutment portion 41 on the peach 4. When the peach 4 rotates to a preset angle, the abutment portion 41 abuts against the side wall of the buffer groove 31 in the first buffer member 3. Compared with direct collision with other limit structures, the noise can be significantly reduced, ensuring that the noise reduction lock will not have a large noise inside during daily use.

[0034] Furthermore, in this embodiment, a buffer plate 32 is formed at one end of the buffer groove 31 and is located between the abutment portion 41 and the inner wall of the housing 1. Figure 1 and Figure 4a As shown, a buffer plate 32 is formed at the inner end of the first buffer member 3 to close the inner end of the buffer groove 31. When the peach 4 rotates, the abutment portion 41 moves in the buffer groove 31. Due to the existence of the buffer plate 32, the inner side surface of the abutment portion 41 does not directly rub against the inner wall of the housing 1, but rubs against the buffer plate 32. Compared with the abutment portion 41 directly rubbing against the inner wall of the housing 1, the friction noise can be significantly reduced after the buffer plate 32 is provided.

[0035] As an embodiment, at least two collision surfaces are formed in the buffer groove 31, and when the disc 4 rotates forward and backward by a preset angle, the two sides of the abutment portion 41 respectively abut against the collision surfaces, thereby reducing collision noise in both directions.

[0036] As an embodiment, the first buffer member 3 is opposite to the inner end of the first locking tongue 2. When the first locking tongue 2 slides into the housing 1, the inner end abuts against the inner wall of the buffer groove 31, so as to reduce the collision noise generated when the first locking tongue 2 is retracted into the housing 1. Figure 1 As shown, the first buffer 3 is arranged in the housing 1 at a position opposite to the first locking tongue 2. When the first locking tongue 2 moves into the housing 1, the end surface abuts against the first buffer 3, which can also reduce noise compared to direct collision with other limiting structures. Figure 1 In the embodiment, the first buffer member 3 is arranged at the right end of the first locking tongue 2. When unlocking, the right end surface of the first locking tongue 2 collides with the first buffer member 3. In other embodiments, the first buffer member 3 may also be arranged at the upper right or lower right of the first locking tongue 2 to ensure that the two can contact when unlocking to achieve the purpose of reducing noise.

[0037] Furthermore, the first buffer member 3 is rotatably disposed on the housing 1, and a side thereof away from the first locking tongue 2 abuts against the inner wall of the housing 1. Figure 2 and Figure 3 As shown, the upper end of the first buffer 3 is rotatably installed in the housing 1 through the rotating shaft, and the right side surface abuts against the right side wall of the housing 1. When the abutting portion 41 or the first locking tongue 2 moves to the right side and abuts against the first buffer 3, the position of the first buffer 3 will not move while playing a role in buffering and noise reduction. When the peach 4 rotates clockwise and the abutting portion 41 abuts against the lower left side of the buffer groove 31, the first buffer 3 will rotate at a certain angle, which can improve the buffering effect.

[0038] As an embodiment, the utility model also discloses a linkage mode between the shift peach 4 and the first locking tongue 2. Specifically, a first sliding groove 21 is formed on the first locking tongue 2, and a sliding shaft 42 is formed on the other side of the shift peach 4 to slide in the first sliding groove 21; when the shift peach 4 rotates, the sliding shaft 42 abuts against the side of the first sliding groove 21, driving the first locking tongue 2 to slide into or outside the housing 1. Figures 1 to 3 As shown, a first slide groove 21 is formed on the first lock tongue 2, and its length direction is different from the sliding direction of the first lock tongue 2. The paddle 4 is rotatably arranged in the housing 1, and a slide shaft 42 is formed on one side of the paddle 4. The slide shaft 42 is slidably assembled in the first slide groove 21. When the paddle 4 rotates, the slide shaft 42 abuts against the side of the first slide groove 21, driving the first lock tongue 2 to slide into or out of the housing 1. For example, the paddle 4 moves along the Figure 3 When the first locking bolt 2 is rotated clockwise, the sliding shaft 42 moves upward, and the side surface abuts against the left side of the first sliding groove 21, so as to push the first locking bolt 2 to move leftward and extend out of the housing 1 to complete the locking; Figure 2 The paddle 4 is rotated counterclockwise, the slide shaft 42 moves downward, and the side surface abuts against the right side surface of the first slide groove 21, which can push the first lock tongue 2 to move rightward and retract into the housing 1, thereby completing the unlocking.

[0039] When the paddle 4 is rotated to unlock or close the lock, the slide shaft 42 will touch the two ends of the first slide groove 21, generating some noise, so the second buffer 5 is provided at the two ends of the first slide groove 21. When the paddle 4 is rotated forward or reverse to the end, the slide shaft 42 will abut against the second buffer 5, and the noise can be significantly reduced compared to the direct collision with the first slide groove 21, ensuring that the lock will not have a large noise inside during daily use.

[0040] Please combine Figure 1 and Figure 3 In this embodiment, the two ends of the first slide groove 21 are arc-shaped, and the slide shaft 42 can approach and stay at this position relatively smoothly. Accordingly, the second buffer member 5 is set to an arc-shaped structure with the same shape as the end surface of the first slide groove 21, which can better fit the slide shaft 42 and further reduce the noise generated when the slide shaft 42 moves to the two ends of the first slide groove 21.

[0041] As an embodiment, the second buffer 5 and the first lock tongue 2 can be connected together by static friction, or can be clamped together, or adhesive can be applied to the contact surface to bond the two together. In this embodiment, the end surface of the second buffer 5 is formed with a connecting portion extending toward the periphery and connected to the side wall of the first lock tongue 2. By providing the connecting portion, the contact area between the second buffer 5 and the first lock tongue 2 can be increased, the firmness of the connection between the two can be improved, and the second buffer 5 can be prevented from falling off from the first slide groove 21 under the long-term collision of the sliding shaft 42.

[0042] As an implementation mode, in this embodiment, the peach 4 is rotatably arranged on the column 11 in the housing 1, and a second slide groove 22 having the same length direction as the sliding direction of the first lock tongue 2 is formed on the first lock tongue 2, and the second slide groove 22 is sleeved on the column 11. Under this structural form, the first lock tongue 2 is slidably connected with the rotation center axis of the peach 4, which can prevent the first lock tongue 2 from being displaced outside the preset direction when the peach 4 rotates, thereby improving the stability of the linkage between the peach 4 and the first lock tongue. Further, a third buffer is provided at both ends of the second slide groove 22. The third buffer can adopt the structural form of the second buffer 5, which can reduce the noise generated by the contact between the two ends of the column 11 and the second slide groove 22.

[0043] As an implementation method, Figures 1 to 3 As shown, in this embodiment, a second lock tongue 6 is also slidably arranged in the shell 1, and an outwardly protruding buffer strip 7 is provided on the collision surface of the second lock tongue 6. By providing the buffer strip 7, the direct contact between the buckle box in the door frame and the second lock tongue 6 is changed to direct contact between the buckle box and the buffer strip 7, which then drives the second lock tongue 6 to move, and can significantly reduce the noise generated by the collision contact between the second lock tongue 6 and the buckle box.

[0044] It should be noted that the buffer structures of the first buffer member 3, the second buffer member 5 and the buffer strip 7 are made of flexible materials, such as sponge, rubber, plastic, silicone, etc. When they collide or rub against other structures, no obvious noise will be generated. Compared with the case where the buffer structures are not provided, the noise reduction lock can significantly reduce the noise generated during operation.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A noise reduction lock, characterized in that: include: case; A first locking tongue, slidably disposed in the housing; A first buffer member, disposed in the housing; The paddle is rotatably arranged in the housing and linked with the first locking tongue, and an abutment portion is formed on one side, wherein when the paddle is rotated by a preset angle, the abutment portion abuts against the first buffer member.

2. The noise reduction lock according to claim 1, characterized in that: The first buffer member has a concave buffer groove; The abutment portion extends into the buffer groove, and when the paddle is rotated by a preset angle, the abutment portion abuts against a side surface of the buffer groove.

3. The noise reduction lock according to claim 2, characterized in that: A buffer plate located between the abutting portion and the inner wall of the shell is formed at one end of the buffer groove.

4. The noise reduction lock according to claim 2, characterized in that: At least two collision surfaces are formed in the buffer groove, and when the paddle is rotated forwards and backwards by a preset angle, two sides of the abutment portion abut against the collision surfaces respectively.

5. The noise reduction lock according to claim 2, characterized in that: The first buffer is rotatably mounted on the housing, and a side of the first buffer away from the first locking tongue abuts against an inner wall of the housing.

6. The noise reduction lock according to claim 1, characterized in that: The first locking tongue is formed with a first sliding groove; the other side of the shifting disc is formed with a sliding shaft slidably arranged in the first sliding groove; wherein When the peach rotates, the sliding shaft abuts against the side surface of the first sliding groove, driving the first locking tongue to slide into or out of the housing.

7. The noise reduction lock according to claim 6, characterized in that: Also includes: The second buffer is arranged at two ends of the first sliding groove.

8. The noise reduction lock according to claim 7, characterized in that: The second buffer is an arc-shaped structure with the same shape as the end surface of the first slide groove; A connecting portion extending toward the outer periphery and connected to the side wall of the first locking tongue is formed on the end surface of the second buffer member.

9. The noise reduction lock according to claim 2, characterized in that: The first buffer component is opposite to the inner end of the first locking tongue. When the first locking tongue slides into the housing, the inner end abuts against the inner side wall of the buffer groove.

10. The noise reduction lock according to claim 1, characterized in that: Also includes: The second locking tongue is slidably arranged in the housing, and a protruding buffer strip is arranged on the collision surface of the second locking tongue.

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