A latch

Abstract

The application provides a mute lock, which comprises a shell, a lock body arranged in the shell, a button arranged at an opening end of the shell, a first spring, a connecting block, a lock hook and a second spring. The button has a pressing side and a connecting side which are opposite to each other, and the connecting side is provided with a connecting structure and an abutting end. The connecting block is rotatably arranged on a bolt shaft of the lock body and has a first side and a second side which are opposite to each other. The first spring is connected between the first side of the connecting block and the connecting structure. The lock hook is rotatably arranged on the lock body and has an abutting part, a locking part and a connecting part. The connecting part is arranged at a rear end of the lock hook and movably connected to the lock body, and a part of the connecting part can contact with the ejecting block. The abutting part is arranged at a front end of the lock hook and abuts against the connecting block. The locking part is arranged close to the abutting part, and the abutting part and the locking part swing under the driving of the connecting part.

Description

Technical Field

[0001] This application relates to the field of seat belt buckle technology, specifically to a silent buckle. Background Technology

[0002] With the increasing popularity of automobiles, vehicle safety has become a major concern for users. Existing seatbelt buckles can effectively ensure seatbelt safety. Generally, when fastening a seatbelt, with the passenger seated, after pulling the seatbelt to wrap around the user's body, the seatbelt is inserted into the buckle device located on the opposite side of the seatbelt's mounting part to secure it and prevent it from unfastening.

[0003] However, existing locks produce a sound when used, such as when pressing the button to unlock, which affects the user experience.

[0004] Therefore, how to reduce the sound of pressing the button when using the latch has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] This application provides a silent latch to solve the problem in the prior art of how to reduce the sound of pressing the button when using the latch.

[0006] This application provides a silent latch, including a housing and a lock body disposed inside the housing, and further comprising: A button is located at the open end of the housing; the button has a pressing side and a connecting side facing away from each other, and the connecting side is provided with a connecting structure and an abutting end; The adapter block is rotatably mounted on the bolt shaft of the lock body, and the adapter block has a first side and a second side that are opposite to each other; A first spring is connected between the first side of the adapter block and the connecting structure; A locking hook is rotatably mounted on the lock body. The locking hook has an abutment part, a locking part, and a connecting part. The connecting part is located at the rear end of the locking hook and is movably connected to the lock body. A portion of the connecting part can contact the ejector block. The abutment part is located at the front end of the locking hook and abuts against the adapter block. The locking part is located close to the abutment part. The abutment part and the locking part can swing under the action of the connecting part. The silent latch is configured as follows: When the latch is not inserted, the ejector block is in the first position near the opening end of the housing. The ejector block pushes up the end of the locking part. The abutment part contacts the second side of the adapter block and drives the adapter block to rotate and is then limited. At the same time, the first spring is compressed. The button is held in place by the compression of the first spring. When the button is pressed, the button slides by compressing the first spring, and the sliding sound of the button is reduced. When the latch is inserted, the push block is pushed to slide to a second position away from the opening end of the housing, and the connecting part of the lock hook is pushed to swing and at the same time the abutting part of the lock hook is rotated and pressed down. When the locking part is inserted into the locking position, the adapter block rotates and presses down on the abutting part of the lock hook.

[0007] Optionally, the adapter block includes a connecting hole, a first contact portion, a second contact portion, a third contact portion, a fourth contact portion, and a connecting limiting portion disposed on the main body; The connecting hole extends through the main body along the width direction of the lock body; The first contact portion is located at the upper part of the main body, and the first contact portion can contact the rear part of the abutment end when the locking tongue is inserted; The second contact portion is located at the upper part of the main body and at a preset angle on the side of the first contact portion. The second contact portion can contact the front part of the abutment end when the latch is not inserted. The third contact portion is located at the lower part of the main body and is opposite to the first contact portion. The contact surface of the third contact portion is arc-shaped. When the locking portion is inserted into the locking position, the third contact portion presses against the abutment portion of the locking hook. The fourth contact portion is formed between the second contact portion and the third contact portion, and is located on the second side of the adapter block. The abutment portion contacts the fourth contact portion and drives the adapter block to rotate before being limited.

[0008] The connecting limiting part is located on the first side of the adapter block, and the first end of the first spring is fixedly connected to the connecting limiting part.

[0009] Optionally, the connecting limiting part is integrally formed with the main body of the adapter block; or The connecting limiting part is detachably connected to the main body of the adapter block.

[0010] Optionally, the connecting limiting part includes at least an integrally formed support block, a limiting slot, and a limiting rib; The support block protrudes from the first side of the adapter block; the first end of the first spring is fitted onto the support block. The limiting slot is formed at the connection between the support block and the adapter block, and the first end of the first spring can be engaged in the limiting slot; The limiting rib protrudes from the outer peripheral surface of the support block to support and limit the first end of the first spring.

[0011] Optionally, the connecting portion is disposed on both sides of the rear end of the lock hook along the width direction of the lock hook. The connecting portion includes a rotating end and a contact end, the rotating end and the contact end are arranged perpendicularly, the rotating end is movably connected to the lock body in the horizontal direction, and the contact end is disposed on the inner side of the lock body in the vertical direction, and the contact end can contact the ejector block.

[0012] Optionally, the abutting portion includes horizontal protrusions, which are disposed on both sides of the front end of the locking hook along the width direction of the locking hook, and the horizontal protrusions are distributed in a horizontal direction.

[0013] Optionally, the locking part includes a vertical block, which is disposed between the horizontal protrusions and is distributed along the vertical direction.

[0014] Optionally, the connection structure includes a supporting limiting protrusion and a limiting baffle; The support limiting protrusion is provided on the connecting side, and the second end of the first spring is fitted onto the support limiting protrusion; The limiting baffle is located on the connecting side and is arranged around the supporting limiting protrusion, and the second end of the first spring is limited by the limiting baffle.

[0015] Compared with the prior art, this application has the following advantages: This application provides a silent latch, including a housing and a lock body disposed inside the housing, and further including: a button disposed at the open end of the housing. The button has a pressing side and a connecting side facing away from each other, and the connecting side is provided with a connecting structure and abutting end. A transition block is rotatably disposed on the bolt shaft of the lock body, and the transition block has a first side and a second side facing away from each other. A first spring is connected between the first side of the transition block and the connecting structure. A lock hook is rotatably mounted on the lock body, and the lock hook has an abutting part, a locking part and a connecting part. The connecting part is disposed at the rear end of the lock hook, and the connecting part is movably connected to the lock body, and a portion of the connecting part can contact the ejector block; the abutting part is disposed at the front end of the lock hook, and the abutting part abuts against the transition block; the locking part is disposed close to the abutting part, and the abutting part and the locking part swing under the drive of the connecting part. The silent latch is configured as follows: When the latch is not inserted, the ejector block is in a first position near the opening end of the housing. The ejector block pushes up the end of the locking part, and the abutment part contacts the second side of the adapter block and drives the adapter block to rotate before being limited. At the same time, the first spring is compressed. The button is held in place by the compressed first spring. When the button is pressed, the button compresses the first spring and slides, reducing the sliding sound of the button. When the latch is inserted, the ejector block is pushed to slide to a second position away from the opening end of the housing, and the connecting part of the lock hook swings and simultaneously drives the abutment part of the lock hook to rotate and press down. When the locking part is inserted in the locked position, the adapter block rotates and presses down on the abutment part of the lock hook.

[0016] This application's silent latch can be understood as follows: by providing a connecting structure on the button's connecting side, a rotatable adapter block on the latch shaft, and a first spring between the first side of the adapter block and the connecting structure, the button is held in place by the spring, preventing loosening or abnormal noise. Furthermore, when the button is pressed, only the button compresses the first spring and slides; other parts do not participate in the movement. This results in a very quiet button operation, thus reducing noise and improving the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a silent lock provided in an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the structure of the locking hook provided in the embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the adapter block provided in this application embodiment at one angle.

[0020] Figure 4 This is a schematic diagram of the adapter block provided in the embodiment of this application from another angle.

[0021] Figure 5 This is a schematic diagram of the button structure provided in the embodiments of this application.

[0022] Figure 6 This is a schematic diagram of the lock tongue not being inserted, provided in an embodiment of this application.

[0023] Figure 7 This is a schematic diagram of the locking tongue insertion state provided in the embodiments of this application.

[0024] Figure label: Housing 10, open end 101, lock body 20, button 30, pressing side 40, connecting side 50, connecting structure 1, support limiting protrusion 11, limiting baffle 12, abutting end 2, front part 21, rear part 22, adapter block 3, connecting hole 31, first contact part 32, second contact part 33, third contact part 34, fourth contact part 35, connecting limiting part 36, support block 361, limiting slot 362, limiting rib 363, bolt shaft 60, first spring 4, lock hook 5, abutting part 51, locking part 52, connecting part 53, rotating end 531, contact end 532, ejecting block 70, second spring 80, locking tongue 90. Detailed Implementation

[0025] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] With the increasing popularity of automobiles, vehicle safety has become a major concern for users. Existing seatbelt buckles can effectively ensure seatbelt safety. Generally, when fastening a seatbelt, with the passenger seated, after pulling the seatbelt to wrap around the user's body, the seatbelt is inserted into the buckle device located on the opposite side of the seatbelt's mounting part to secure it and prevent it from unfastening.

[0029] However, existing locks produce a sound when used, such as when pressing button 30 to unlock, which affects the user experience.

[0030] Accordingly, this application provides a silent latch, including a housing and a lock body disposed inside the housing, and further including: a button disposed at the open end of the housing. The button has a pressing side and a connecting side facing away from each other, and the connecting side is provided with a connecting structure and a contact end. A transition block is rotatably disposed on the bolt shaft of the lock body, and the transition block has a first side and a second side facing away from each other. A first spring is connected between the first side of the transition block and the connecting structure. A lock hook is rotatably mounted on the lock body, and the lock hook has a contact part, a locking part and a connecting part. The connecting part is disposed at the rear end of the lock hook, and the connecting part is movably connected to the lock body, and a portion of the connecting part can contact the ejector block; the contact part is disposed at the front end of the lock hook, and the contact part abuts against the transition block; the locking part is disposed close to the contact part, and the contact part and the locking part swing under the drive of the connecting part. The silent latch is configured as follows: When the latch is not inserted, the ejector block is in a first position near the opening end of the housing. The ejector block pushes up the end of the locking part, and the abutment part contacts the second side of the adapter block and drives the adapter block to rotate before being limited. At the same time, the first spring is compressed. The button is held in place by the compressed first spring. When the button is pressed, the button compresses the first spring and slides, reducing the sliding sound of the button. When the latch is inserted, the ejector block is pushed to slide to a second position away from the opening end of the housing, and the connecting part of the lock hook swings and simultaneously drives the abutment part of the lock hook to rotate and press down. When the locking part is inserted in the locked position, the adapter block rotates and presses down on the abutment part of the lock hook.

[0031] This application's silent latch can be understood as follows: by providing a connecting structure on the button's connecting side, a rotatable adapter block on the latch shaft, and a first spring between the first side of the adapter block and the connecting structure, the button is held in place by the spring, preventing loosening or abnormal noise. Furthermore, when the button is pressed, only the button compresses the first spring and slides; other parts do not participate in the movement. This results in a very quiet button operation, thus reducing noise and improving the user experience.

[0032] Next, the silent locking latch provided in this application will be described in detail with reference to the accompanying drawings. Among them, Figure 1 This is a schematic diagram of the structure of a silent lock provided in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the locking hook provided in the embodiment of this application. Figure 3 This is a schematic diagram of the adapter block provided in this application embodiment at one angle. Figure 4 This is a schematic diagram of the adapter block provided in the embodiment of this application from another angle. Figure 5 This is a schematic diagram of the button structure provided in the embodiments of this application. Figure 6This is a schematic diagram of the lock tongue not being inserted, provided in an embodiment of this application. Figure 7 This is a schematic diagram of the locking tongue insertion state provided in the embodiments of this application.

[0033] like Figures 1 to 7 As shown, this application provides a silent latch, including a housing 10 and a lock body 20 disposed inside the housing 10, and further including: a button 30 disposed at the open end 101 of the housing 10. The button 30 has a pressing side 40 and a connecting side 50 facing away from each other, and the connecting side 50 is provided with a connecting structure 1 and an abutting end 2. A transition block 3 is rotatably disposed on the latch shaft 60 of the lock body 20, and the transition block 3 has a first side and a second side facing away from each other. A first spring 4 is connected between the first side of the transition block 3 and the connecting structure 1. The locking hook 5 is rotatably mounted on the lock body 20. The locking hook 5 has an abutment part 51, a locking part 52 and a connecting part 53. The connecting part 53 is located at the rear end of the locking hook 5 and is movably connected to the lock body 20. A portion of the connecting part 53 can contact the ejector block 70. The abutment part 51 is located at the front end of the locking hook 5 and abuts against the adapter block 3. The locking part 52 is located close to the abutment part 51. The abutment part 51 and the locking part 52 swing under the drive of the connecting part 53. The silent latch is configured as follows: When the latch 90 is not inserted, the ejector block 70 is in a first position near the opening end 101 of the housing 10. The ejector block 70 pushes up the end of the locking part 52, and the abutment part 51 contacts the second side of the adapter block 3 and drives the adapter block 3 to rotate and be limited. At the same time, the first spring 4 is compressed. The button 30 is held in place by the compressed state of the first spring 4. When the button 30 is pressed, the button 30 compresses the first spring 4 and slides, reducing the sliding sound of the button 30. When the latch 90 is inserted, the ejector block 70 is pushed to slide to a second position away from the opening end 101 of the housing 10, and the connecting part 53 of the lock hook 5 is pushed to swing and at the same time, the abutment part 51 of the lock hook 5 is rotated and pressed down. When the locking part 52 is inserted in the locking position, the adapter block 3 rotates and presses down on the abutment part 51 of the lock hook 5.

[0034] In addition, in this embodiment, the other components of the silent latch are as follows: the housing 10 is provided with a button 30, a locking hook 5, a lock body 20, a bolt shaft 60, a first spring 4, a connecting block 3, an ejector block 70, and a second spring 80. The lock body 20 is installed in the housing 10, the second spring 80 is limited in a groove at the bottom of the lock body 20, and the ejector block 70 is slidably disposed between the bottom of the lock body 20 and the lower housing 10. One end of the second spring 80 is connected to the ejector block 70, and its compression shape can be changed during the movement of the ejector block 70. The locking hook 5 is rotatably mounted on the lock body 20. The bolt shaft 60 is installed on the lock body 20 along the width direction of the lock body 20, the connecting block 3 is rotatably disposed on the bolt shaft 60, the button 30 is disposed at the open end 101 of the housing 10, and the first spring 4 is connected between the first side of the connecting block 3 and the connecting structure 1 of the button 30.

[0035] Specifically, in this embodiment, the housing 10 includes an upper housing and a lower housing, and the lock body 20 is installed between the upper housing and the lower housing and is limited therebetween. The lock hook 5 is rotatably mounted on the lock body 20. Specifically, in one example, the lock hook 5 has an abutment portion 51, a locking portion 52, and a connecting portion 53. The connecting portion 53 is located at the rear end of the lock hook 5, is movably connected to the lock body 20, and a portion of the connecting portion 53 can contact the ejector block 70. The abutment portion 51 is located at the front end of the lock hook 5, abutting against the adapter block 3. The locking portion 52 is located close to the abutment portion 51, and the abutment portion 51 and the locking portion 52 swing under the influence of the connecting portion 53. In this embodiment, the front end of the lock hook 5 refers to the end of the lock hook 5 close to the opening end 101 of the housing 10, and conversely, the rear end of the lock hook 5 refers to the end of the lock hook 5 away from the opening end 101 of the housing 10. The directions of the front and rear ends of the lock hook 5 are defined as the length direction of the lock hook 5.

[0036] Furthermore, in one example, the connecting portion 53 is disposed on both sides of the rear end of the lock hook 5 along the width direction of the lock hook 5. Specifically, the connecting portion 53 includes a rotating end 531 and a contact end 532, and the rotating end 531 and the contact end 532 are arranged vertically. The rotating end 531 is movably connected in the first groove of the lock body 20 in the horizontal direction. In one example, the rotating end 531 includes a first rotating end 531 and a second rotating end 531, which are movably connected in the first grooves of the lock walls on both sides of the lock body 20 in the horizontal direction, respectively. The contact end 532 is disposed on the inner side of the lock body 20 in the vertical direction, and the contact end 532 can contact the ejector block 70. Specifically, in one example, the contact end 532 includes a first contact end 532 and a second contact end 532, which are respectively disposed on the inner sides of the lock walls on both sides of the lock body 20. The first rotating end 531 is positioned close to the first contact end 532, and the first rotating end 531 and the first contact end 532 are perpendicular to each other. The second contact end 532 is positioned close to the second contact end 532, and the second rotating end 531 and the second contact end 532 are perpendicular to each other. The first contact end 532 and the second contact end 532, the second rotating end 531 and the second contact end 532 cooperate with each other to achieve rotation and limit the movement at the same time.

[0037] In one example, the abutment portion 51 includes horizontal protrusions, which are disposed on both sides of the front end of the locking hook 5 along the width direction of the hook 5, and are distributed horizontally. In another example, the horizontal protrusions include a first horizontal protrusion and a second horizontal protrusion, which are respectively disposed on both sides of the front end of the locking hook 5 along the width direction of the hook 5. The locking portion 52 includes vertical blocks disposed between the horizontal protrusions, specifically between the first and second horizontal protrusions. The vertical blocks are distributed vertically.

[0038] The adapter block 3 is rotatably mounted on the bolt shaft 60 of the lock body 20. The adapter block 3 has a first side and a second side that are opposite to each other. The first side of the adapter block 3 is the side closest to the opening end 101 of the housing 10, and conversely, the first side of the adapter block 3 is the side closest to the lock hook 5. Specifically, in one example, the adapter block 3 includes a connecting hole 31, a first contact portion 32, a second contact portion 33, a third contact portion 34, a fourth contact portion 35, and a connecting limiting portion 36, all located in the main body. The connecting hole 31 extends through the main body along the width direction of the lock body 20, and the bolt shaft 60 can be inserted into the connecting hole 31 so that the adapter block 3 is rotatably connected to the bolt shaft 60 through the connecting hole 31. In one example, the main structure of the connecting hole 31 is cylindrical, and the connecting hole 31 extends through the axis of the cylindrical main body. The first contact portion 32 is located at the upper part of the main body. The first contact portion 32 can contact the rear part 22 of the abutment end 2 when the latch 90 is inserted. In one example, the first contact portion 32 protrudes along the tangent direction of the cylindrical main body that forms the connecting hole 31. The second contact portion 33 is located at the upper part of the main body and at a preset angle next to the first contact portion 32. The second contact portion 33 can contact the front part 21 of the abutment end 2 when the latch 90 is not inserted. In one example, the second contact portion 33 protrudes from the circumferential surface of the cylindrical main body that forms the connecting hole 31. The third contact portion 34 is located at the lower part of the main body and opposite the first contact portion 32. The contact surface of the third contact portion 34 is arc-shaped. When the locking part 52 is inserted in the locked position, the third contact portion 34 presses against the abutment part 51 of the lock hook 5. In one example, the third contact portion 34 is configured as a block structure, and the end contact surface of the block structure is arc-shaped. When the locking portion 52 is inserted into the locking position, the contact surface of the third contact portion 34 presses against the abutment portion 51 of the locking hook 5. The fourth contact portion 35 is formed between the second contact portion 33 and the third contact portion 34, and is located on the second side of the adapter block 3. The abutment portion 51 contacts the fourth contact portion 35 and drives the adapter block 3 to rotate before being limited. In one example, the fourth contact portion 35 has a concave arc on the second side of the adapter block 3, and the abutment portion 51 can be limited within this concave arc.

[0039] A connecting limiting part 36 is disposed on the first side of the adapter block 3, and the first end of the first spring 4 is fixedly connected to the connecting limiting part 36. In one example, the connecting limiting part 36 is integrally formed with the main body of the adapter block 3. Alternatively, the connecting limiting part 36 is detachably connected to the main body of the adapter block 3. Further, in one example, the connecting limiting part 36 includes at least an integrally formed support block 361, a limiting groove 362, and a limiting rib 363. The support block 361 protrudes from the first side of the adapter block 3, the first end of the first spring 4 is fitted onto the support block 361, the limiting groove 362 is formed at the connection between the support block 361 and the adapter block 3, and the first end of the first spring 4 can be engaged in the limiting groove 362. In one example, the limiting groove 362 is disposed on the horizontal left and right sides of the support block 361. The limiting rib 363 protrudes from the outer peripheral surface of the support block 361 to support and limit the first end of the first spring 4. In one example, the limiting rib 363 has an inclination that increases from low to high along the insertion direction of the latch 90.

[0040] In this embodiment, to facilitate the connection of the second end of the first spring 4 to the connecting side 50 of the button 30, a connecting structure 1 is also provided on the connecting side 50. The connecting side 50 of the button 30 refers to the side away from the external pressing side 40 of the button 30. Specifically, the connecting structure 1 includes a supporting limiting protrusion 11 and a limiting baffle 12. The supporting limiting protrusion 11 protrudes from the connecting side 50, and the second end of the first spring 4 is fitted onto the supporting limiting protrusion 11. In one example, the supporting limiting protrusion 11 has an arrow-shaped structure. The limiting baffle 12 is provided on the connecting side 50 and surrounds the supporting limiting protrusion 11, limiting the second end of the first spring 4. In one example, the limiting baffle 12 is provided on both the left and right sides of the supporting limiting protrusion 11.

[0041] In this embodiment, the abutting end 2 of the connecting side 50 includes a front part 21 and a rear part 22. The connecting side 50 of the button 30 is provided with a support frame for the button 30. The support frame can be connected to the lock body 20 to connect the button 30 to the lock body 20. The front wall and the rear wall that constitute the support frame can serve as the front part 21 and the rear part 22 of the abutting end 2. The front part 21 is the part of the abutting end 2 away from the opening end 101 of the housing 10. Conversely, the rear part 22 is the part of the abutting end 2 close to the opening end 101 of the housing 10. When the first contact portion 32 and the second contact portion 33 of the adapter block 3 are housed in the accommodating space of the main support frame, the first contact portion 32 and the second contact portion 33 can swing in the accommodating space of the main support frame, and the first contact portion 32 can contact the rear portion 22 of the abutting end 2 when the locking tongue 90 is inserted, and the second contact portion 33 can contact the front portion 21 of the abutting end 2 when the locking tongue 90 is not inserted.

[0042] This application provides a silent latch, including a housing 10 and a lock body 20 disposed inside the housing 10, and further including: a button 30 disposed at the open end 101 of the housing 10. The button 30 has a pressing side 40 and a connecting side 50 facing away from each other, the connecting side 50 having a connecting structure 1 and an abutting end 2. A transition block 3 is rotatably disposed on the latch shaft 60 of the lock body 20, and the transition block 3 has a first side and a second side facing away from each other. A first spring 4 is connected between the first side of the transition block 3 and the connecting structure 1. The locking hook 5 is rotatably mounted on the lock body 20. The locking hook 5 has an abutment part 51, a locking part 52 and a connecting part 53. The connecting part 53 is located at the rear end of the locking hook 5 and is movably connected to the lock body 20. A portion of the connecting part 53 can contact the ejector block 70. The abutment part 51 is located at the front end of the locking hook 5 and abuts against the adapter block 3. The locking part 52 is located close to the abutment part 51. The abutment part 51 and the locking part 52 swing under the drive of the connecting part 53. The silent latch is configured as follows: When the latch 90 is not inserted, the ejector block 70 is in a first position near the opening end 101 of the housing 10. The ejector block 70 pushes up the end of the locking part 52, and the abutment part 51 contacts the second side of the adapter block 3 and drives the adapter block 3 to rotate and be limited. At the same time, the first spring 4 is compressed. The button 30 is held in place by the compressed state of the first spring 4. When the button 30 is pressed, the button 30 compresses the first spring 4 and slides, reducing the sliding sound of the button 30. When the latch 90 is inserted, the ejector block 70 is pushed to slide to a second position away from the opening end 101 of the housing 10, and the connecting part 53 of the lock hook 5 is pushed to swing and at the same time, the abutment part 51 of the lock hook 5 is rotated and pressed down. When the locking part 52 is inserted in the locking position, the adapter block 3 rotates and presses down on the abutment part 51 of the lock hook 5.

[0043] This application's silent latch can be understood as follows: A connecting structure 1 is provided on the connecting side 50 of the button 30; a rotatable adapter block 3 is provided on the bolt shaft 60; and a first spring 4 is provided between the first side of the adapter block 3 and the connecting structure 1. This allows the button 30 to be held in place by the spring, preventing loosening and abnormal noise. Furthermore, when the button 30 is pressed, only the button 30 compresses the first spring 4 and slides; other parts do not participate in the movement. At this time, the button 30 will be very quiet, thus reducing the noise when operating the button 30 and improving the user experience.

[0044] It should be noted that although several structures, components, or units for implementing the relevant functions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the specific embodiments of this application, the features and functions of two or more structures, components, or units described above can be embodied in one structure, component, or unit. Conversely, the features and functions of one structure, component, or unit described above can be further divided and embodied by multiple components, structures, or units.

[0045] Furthermore, although the various components of the components or apparatus in this application and the mounting arrangements between them are described in a specific order in the accompanying drawings, this does not require or imply that the components or apparatus must be designed according to that specific component or mounting arrangement, or that all the components shown must be included to achieve the desired result. Additional or alternative components may be omitted, multiple components may be combined into one component to achieve the corresponding function, and / or a component may be decomposed into multiple components to achieve the corresponding function, etc.

[0046] Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.

Claims

1. A silent latch, comprising a housing and a lock body disposed inside the housing, characterized in that, Also includes: A button is located at the open end of the housing; the button has a pressing side and a connecting side facing away from each other, and the connecting side is provided with a connecting structure and an abutting end; The adapter block is rotatably mounted on the bolt shaft of the lock body, and the adapter block has a first side and a second side that are opposite to each other; A first spring is connected between the first side of the adapter block and the connecting structure; A locking hook is rotatably mounted on the lock body. The locking hook has an abutment part, a locking part, and a connecting part. The connecting part is located at the rear end of the locking hook and is movably connected to the lock body. A portion of the connecting part can contact the ejector block. The abutment part is located at the front end of the locking hook and abuts against the adapter block. The locking part is located close to the abutment part. The abutment part and the locking part can swing under the action of the connecting part. The silent latch is configured as follows: When the latch is not inserted, the ejector block is in the first position near the opening end of the housing. The ejector block pushes up the end of the locking part. The abutment part contacts the second side of the adapter block and drives the adapter block to rotate and is then limited. At the same time, the first spring is compressed. The button is held in place by the first spring under compression. When the button is pressed, the button slides by compressing the first spring, and the sliding sound of the button is reduced. When the latch is inserted, the push block is pushed to slide to a second position away from the opening end of the housing, and the connecting part of the lock hook is pushed to swing and at the same time the abutting part of the lock hook is rotated and pressed down. When the locking part is inserted into the locking position, the adapter block rotates and presses down on the abutting part of the lock hook.

2. The silent locking latch according to claim 1, characterized in that, The adapter block includes a connecting hole, a first contact portion, a second contact portion, a third contact portion, a fourth contact portion, and a connecting limiting portion disposed on the main body; The connecting hole extends through the main body along the width direction of the lock body; The first contact portion is located at the upper part of the main body, and the first contact portion can contact the rear part of the abutment end when the locking tongue is inserted; The second contact portion is located at the upper part of the main body and at a preset angle on the side of the first contact portion. The second contact portion can contact the front part of the abutment end when the latch is not inserted. The third contact portion is located at the lower part of the main body and is opposite to the first contact portion. The contact surface of the third contact portion is arc-shaped. When the locking portion is inserted into the locking position, the third contact portion presses against the abutment portion of the locking hook. The fourth contact portion is formed between the second contact portion and the third contact portion, and is located on the second side of the adapter block. The abutment portion contacts the fourth contact portion and drives the adapter block to rotate before being limited. The connecting limiting part is located on the first side of the adapter block, and the first end of the first spring is fixedly connected to the connecting limiting part.

3. The silent locking latch according to claim 1, characterized in that, The connecting limiting part is integrally formed with the main body of the adapter block; or The connecting limiting part is detachably connected to the main body of the adapter block.

4. The silent locking latch according to claim 1, characterized in that, The connecting and limiting part includes at least an integrally formed support block, a limiting slot, and a limiting rib; The support block protrudes from the first side of the adapter block; the first end of the first spring is fitted onto the support block. The limiting slot is formed at the connection between the support block and the adapter block, and the first end of the first spring can be engaged in the limiting slot; The limiting rib protrudes from the outer peripheral surface of the support block to support and limit the first end of the first spring.

5. The silent locking latch according to claim 1, characterized in that, The connecting part is disposed on both sides of the rear end of the lock hook along the width direction of the lock hook. The connecting part includes a rotating end and a contact end. The rotating end and the contact end are arranged perpendicularly. The rotating end is movably connected to the lock body in the horizontal direction. The contact end is disposed on the inner side of the lock body in the vertical direction. The contact end can contact the ejector block.

6. The silent locking latch according to claim 1, characterized in that, The abutting part includes horizontal protrusions, which are arranged on both sides of the front end of the locking hook along the width direction of the locking hook, and the horizontal protrusions are distributed in a horizontal direction.

7. The silent locking latch according to claim 6, characterized in that, The locking part includes vertical blocks, which are disposed between the horizontal protrusions and are distributed along the vertical direction.

8. The silent locking latch according to claim 1, characterized in that, The connection structure includes a supporting and limiting protrusion and a limiting baffle; The support limiting protrusion is provided on the connecting side, and the second end of the first spring is fitted onto the support limiting protrusion; The limiting baffle is located on the connecting side and is arranged around the supporting limiting protrusion, and the second end of the first spring is limited by the limiting baffle.

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