Latch bolt mute structure of mute lock body

Abstract

The utility model relates to an inclined tongue muting structure of a muting lock body, which comprises a shell, an inclined tongue component and an axis component, the inclined tongue component comprises a muting inclined tongue, a connecting rod, a return spring, a connecting rod silencing piece, a connecting rod silencing baffle plate and a buffer spring, one end of the connecting rod is connected with the muting inclined tongue, and the other end of the connecting rod is provided with a spring step; the connecting rod silencing piece and the connecting rod silencing blocking piece are arranged on the connecting rod in a sleeved mode, a connecting gap used for being connected with a transmission foot of a shifting piece of the axis assembly is formed between the connecting rod silencing piece and the connecting rod silencing blocking piece, and the return spring is arranged on the portion, between the silencing inclined tongue and the connecting rod silencing piece, of the connecting rod in a sleeved mode. And the buffer spring is sleeved on the connecting rod between the connecting rod silencing baffle sheet and the spring step. By introducing the design of the connecting rod noise reduction blocking piece and the buffer spring, the transmission foot is connected to the connecting gap between the connecting rod noise reduction piece and the connecting rod noise reduction blocking piece, and therefore when the axis assembly rotates, impact force generated in the moving process of the transmission foot of the axis assembly can be effectively absorbed and buffered, and noise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to an inclined tongue component of an inclined tongue silent structure of a silent lock body. Background Art

[0002] With the development of science and technology and the progress of society, people's requirements for quality of life are constantly increasing. Especially in terms of living environment, quietness has become one of the important criteria for measuring a good living environment. Traditional mechanical locks often make loud noises during the opening and closing process, which not only affects the user experience, but also may interfere with the surrounding environment. Especially at night or in an environment that needs to be quiet, such noise problems are more prominent.

[0003] In recent years, silent locks have been favored by more and more consumers for their convenience and safety. However, in actual applications, it is found that although silent locks provide many convenient functions, certain design deficiencies still cause unnecessary noise during operation. Especially when it comes to the interaction between the oblique tongue assembly and the axis assembly, due to the lack of an effective buffering mechanism in the traditional design, the axis assembly directly hits the fixed part (such as the spring step) during rotation or rebound, resulting in more obvious noise. For example, our company's previous application, application number 2020108161505, disclosed an ultra-quiet telescopic structure of the main lock tongue of the lock body. When the transmission foot of the axis assembly moves, it will directly collide with the spring step at the end of the connecting rod, making obvious noise.

[0004] In view of the above problems, the present application proposes a new type of silent lock body with an inclined tongue silent structure. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides a silent structure of an inclined tongue of a silent lock body.

[0006] The technical solution adopted by the utility model is: a silent structure of a silent latch bolt of a silent lock body, comprising a shell, a latch bolt assembly and an axis assembly, the latch bolt assembly comprising a silent latch bolt, a connecting rod, a return spring, a connecting rod silencer, a connecting rod silencer baffle and a buffer spring, one end of the connecting rod is connected to the silent latch bolt, and the other end is provided with a spring step, the connecting rod silencer and the connecting rod silencer baffle are sleeved on the connecting rod, a connecting gap is formed between the connecting rod silencer and the connecting rod silencer baffle for connecting with the transmission foot of the paddle of the axis assembly, the return spring is sleeved on the connecting rod between the silent latch bolt and the connecting rod silencer, and the buffer spring is sleeved on the connecting rod between the connecting rod silencer baffle and the spring step.

[0007] Furthermore, the connecting rod silencer is provided with a protruding foot on one side of the connecting rod silencer baffle.

[0008] Further, through holes for the connecting rod to pass through are provided on the connecting rod sound insulation member and the connecting rod sound insulation baffle.

[0009] Further, the buffer spring includes a connecting rod sound insulation spring and a limiting spring sleeved inside the connecting rod sound insulation spring.

[0010] Further, the silent inclined tongue includes an arc-shaped inclined tongue and silent inserts located on both sides of the arc-shaped inclined tongue. "T"-shaped steps are provided on both sides of the arc-shaped inclined tongue, and "T"-shaped grooves engaged with the above-mentioned "T"-shaped steps are provided on the silent inserts.

[0011] Further, a rebound limit post is provided on the outer housing on one side of the shaft center assembly, and a rebound sound insulation sleeve is sleeved on the rebound limit post.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. Noise reduction: By adding a connecting rod sound insulation member and a connecting rod sound insulation baffle to the connecting rod and cooperating with the design of the buffer spring, when the transmission foot of the shaft center assembly rebounds, it no longer directly impacts the spring step, but first contacts the connecting rod sound insulation baffle, and then the buffer spring absorbs and releases energy, thereby greatly reducing the noise generated by the collision.

[0014] 2. Improvement of user experience: Since the sound level during the unlocking or locking process is effectively controlled, users can enjoy an almost silent operation experience even in situations where a quiet environment needs to be maintained (such as at night, in a hospital or a library, etc.), greatly improving user satisfaction and comfort.

[0015] 3. Enhancement of product competitiveness: Compared with existing similar products on the market, the silent feature provided by this application has become a major highlight. For consumers pursuing a high-quality life, such a product that can provide better silent performance is undoubtedly more attractive, helping to expand the market share and improve brand awareness.

[0016] In addition to the purposes, features, and advantages described above, the present utility model has other purposes, features, and advantages.

[0017] Next, the present utility model will be described in further detail with reference to the accompanying drawings. Description of the Drawings

[0018] Figure 1 is a structural schematic diagram of the present utility model.

[0019] Figure 2 is an exploded schematic diagram of the inclined tongue assembly.

[0020] Figure 1-2In the Chinese version: 1. Outer shell; 3. Axis component; 4. Silent inclined tongue; 5. Connecting rod; 6. Return spring; 7. Connecting rod sound insulation part; 8. Connecting rod sound insulation baffle; 9. Buffer spring; 10. Spring step; 11. Driving foot; 12. Connecting gap; 13. Convex foot; 14. Through hole; 15. Connecting rod sound insulation spring; 16. Limit spring; 17. Arc-shaped inclined tongue; 18. Silent insert; 19. "T"-shaped step; 20. "T"-shaped groove; 21. Rebound limit post; 22. Rebound sound insulation sleeve; 23. Paddle. Detailed implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0023] The present invention provides a silent structure for the inclined tongue of a silent lock body.

[0024] In this embodiment, referring to Figure 1-2 , the silent structure of the inclined tongue of the silent lock body includes an outer shell 1, an inclined tongue assembly and an axis component 3. The inclined tongue assembly includes a silent inclined tongue 4, a connecting rod 5, a return spring 6, a connecting rod sound insulation part 7, a connecting rod sound insulation baffle 8 and a buffer spring 9. One end of the connecting rod 5 is connected to the silent inclined tongue, and the other end is provided with a spring step 10. The connecting rod sound insulation part 7 and the connecting rod sound insulation baffle 8 are sleeved on the connecting rod. A connecting gap 12 is formed between the connecting rod sound insulation part and the connecting rod sound insulation baffle for connecting with the driving foot 11 of the paddle 23 of the axis component. The return spring is sleeved on the connecting rod 5 between the silent inclined tongue and the connecting rod sound insulation part, and the buffer spring 9 is sleeved on the connecting rod between the connecting rod sound insulation baffle and the spring step 10.

[0025] Based on the original design, the present application, through the design of introducing the connecting rod sound insulation baffle and the buffer spring, connects the driving foot in the connecting gap between the connecting rod sound insulation part and the connecting rod sound insulation baffle. Thus, when the axis component rotates, the impact force generated during the movement of the driving foot of the axis component can be effectively absorbed and buffered, thereby greatly reducing the generation of noise.

[0026] Specifically, a convex foot 13 is provided on one side of the connecting rod sound insulation member located on the connecting rod sound insulation flap.

[0027] As can be seen from the prior application (application number 2020108161505), there are two paddles 23 (push bar paddle and inclined tongue paddle) in the shaft center assembly. By setting the convex foot in this application, the transmission feet on the two paddles can be separated and positioned, which helps to improve the stability of the accessory assembly.

[0028] Specifically, through holes 14 for the connecting rod to pass through are provided on the connecting rod sound insulation member and the connecting rod sound insulation flap.

[0029] In this embodiment, the through holes allow the connecting rod to pass through smoothly and are used for sleeve assembly with the connecting rod.

[0030] Specifically, the buffer spring 9 includes a connecting rod sound insulation spring 15 and a limit spring 16 sleeved inside the connecting rod sound insulation spring.

[0031] In this embodiment, the double-layer spring structure not only provides a better buffering effect but also enhances the control ability of the connecting rod movement. The function of the limit spring is to limit the maximum compression amount of the connecting rod sound insulation spring to avoid performance degradation or damage caused by excessive compression.

[0032] Specifically, the silent inclined tongue includes an arc-shaped inclined tongue 17 and silent inserts 18 located on both sides of the arc-shaped inclined tongue 17. "T"-shaped steps 19 are provided on both sides of the arc-shaped inclined tongue, and "T"-shaped grooves 20 that fit with the above-mentioned "T"-shaped steps 19 are provided on the silent inserts.

[0033] In this embodiment, the matching design of the "T"-shaped steps and the "T"-shaped grooves enables the silent inserts to be firmly fixed on the arc-shaped inclined tongue, reducing the possible frictional sound between the two. At the same time, this structure also helps to improve the overall strength and durability of the lock tongue.

[0034] Specifically, a rebound limit post 21 is provided on the outer housing on one side of the shaft center assembly, and a rebound sound insulation sleeve 22 is sleeved on the rebound limit post 21.

[0035] In this embodiment, the rebound limit post is mainly used to limit the rotation angle of the paddle. The rebound sound insulation sleeve on the rebound limit post can provide additional buffering when the shaft center assembly rotates to the limit position, reducing the impact sound caused by hard contact and achieving a silent effect.

[0036] All technicians should note that although the present utility model has been described according to the above specific embodiments, the idea of the present utility model is not limited to this utility model only. Any modification using the idea of the present utility model will be included in the scope of protection of this patent right.

Claims

1. The mute structure of the inclined tongue of a mute lock body, comprising a housing, an inclined tongue assembly and an axis assembly, is characterized in that: The inclined tongue assembly includes a silent inclined tongue, a connecting rod, a return spring, a connecting rod sound insulation member, a connecting rod sound insulation flap, and a buffer spring. One end of the connecting rod is connected to the silent inclined tongue, and the other end is provided with a spring step. The connecting rod sound insulation member and the connecting rod sound insulation flap are sleeved on the connecting rod, and a connecting gap is formed between the connecting rod sound insulation member and the connecting rod sound insulation flap for connecting with the transmission foot of the paddle of the shaft center assembly. The return spring is sleeved on the connecting rod between the silent inclined tongue and the connecting rod sound insulation member, and the buffer spring is sleeved on the connecting rod between the connecting rod sound insulation flap and the spring step.

2. The anti-noise structure of the bevel tongue of the silent lock body according to claim 1, characterized in that: The connecting rod sound insulation member is provided with a convex foot on one side of the connecting rod sound insulation flap.

3. The mute structure of the oblique tongue of the mute lock body according to claim 1, characterized in that: The connecting rod sound insulation member and the connecting rod sound insulation flap are provided with through holes through which the connecting rod passes.

4. The mute structure of the oblique tongue of the mute lock body according to claim 1, characterized in that: The buffer spring includes a connecting rod sound insulation spring and a limit spring sleeved inside the connecting rod sound insulation spring.

5. The mute structure of the oblique tongue of the mute lock body according to claim 1, characterized in that: The silent inclined tongue includes an arc-shaped inclined tongue and silent inserts located on both sides of the arc-shaped inclined tongue. "T"-shaped steps are provided on both sides of the arc-shaped inclined tongue, and "T"-shaped grooves are provided on the silent inserts to be fitted with the above-mentioned "T"-shaped steps.

6. The anti-noise structure of the deadbolt of the silent lock body according to any one of claims 1-5, characterized in that: A return limit post is provided on the outer housing on one side of the shaft center assembly, and a return sound insulation sleeve is sleeved on the return limit post.

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