Spring bolt pressing mechanism and lock
By setting the lock tongue receiving cavity and friction shaft on the fixing seat of the lock, the problem of easy deformation of the compression structure in the existing lock is solved, extending the life of the fixing seat and reducing maintenance costs.
Patent Information
- Application Number
- CN202421878393.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-05
AI Technical Summary
In existing locks, the hard pressing method of the compression structure and the lock tongue can easily lead to deformation at the joint of the fixing seat and the lock tongue, resulting in failure of the compression structure, reducing the service life and safety of the lock.
A lock tongue compression mechanism is designed. By setting a lock tongue receiving cavity on the fixed seat and a rotating shaft that can rub with the lock tongue in the receiving cavity, the friction between the lock tongue and the rotating shaft is used to generate a pressing effect, reducing the loss of the fixed seat.
The design converts the hard contact compression force into the pressure generated by the lock tongue compression, reducing the direct contact between the lock tongue and the fixing seat, extending the service life of the fixing seat, and without changing the entire fixing seat when the shaft is worn, just changing the rotating shaft, reducing maintenance costs.
Smart Images
Figure CN222962634U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of door locks, and relates to a lock catch and a lock, in particular to a lock tongue pressing mechanism and a lock. Background Art
[0002] For a lock, see Figure 1 , which includes a lock tongue installed on a door and a pressing structure (also called a lock catch) installed on a door frame. The two cooperate with each other to finally realize the function of locking or unlocking. The existing pressing structure uses hard extrusion between the lock tongue and a fixed seat, as shown in Figure 1 and Figure 2 , so as to achieve a pressing effect. Although it can play a role in pressing the lock tongue, this method is likely to cause deformation and failure at the joint between the pressing structure and the lock tongue, reducing the service life of the pressing structure and lowering the use safety of the lock. Content of the Utility Model
[0003] In order to solve the above technical problems in the background art, the utility model provides a lock tongue pressing mechanism and a lock that can reduce the loss of the fixed seat, extend the service life of the lock, and facilitate maintenance.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A lock tongue pressing mechanism, characterized in that: the lock tongue pressing mechanism includes a fixed seat, and a lock tongue receiving cavity is arranged on the fixed seat; a rotating shaft that can rub against the lock tongue is arranged in the lock tongue receiving cavity.
[0006] The above-mentioned lock tongue receiving cavity is a U-shaped groove extending from the outer surface of the side part of the fixed seat to the center of the fixed seat; the rotating shaft straddles the U-shaped groove.
[0007] The above-mentioned U-shaped groove includes a first side wall and a second side wall opposite to the first side wall; the rotating shaft straddles the first side wall and the second side wall.
[0008] A through hole penetrating the side wall is arranged on the first side wall, and a counterbore is arranged on the second side wall; one end of the rotating shaft is placed in the through hole of the first side wall, and the other end is placed in the counterbore of the second side wall.
[0009] Through holes penetrating the side walls are arranged on both the first side wall and the second side wall, and both ends of the rotating shaft are respectively placed in the through hole of the first side wall and the through hole of the second side wall.
[0010] The above-mentioned rotating shaft includes a connecting shaft and a limiting member arranged at the end of the connecting shaft; the limiting member is a bolt or an elastic retaining ring.
[0011] The above-mentioned tongue pressing mechanism further includes a rolling bearing disposed on the U-shaped groove; the rotating shaft straddles the U-shaped groove through the rolling bearing; the rolling bearing is one group or multiple groups.
[0012] A lock, characterized in that: the lock includes a lock tongue and the above-mentioned tongue pressing mechanism; the position of the lock tongue corresponds to the position of the tongue pressing mechanism; the lock tongue is placed in the tongue receiving cavity of the tongue pressing mechanism.
[0013] The end of the above-mentioned lock tongue is placed in the tongue receiving cavity of the tongue pressing mechanism after friction with the rotating shaft of the tongue pressing mechanism.
[0014] The end of the above-mentioned lock tongue is in linear contact with the rotating shaft of the tongue pressing mechanism.
[0015] The advantages of the present utility model are:
[0016] The present utility model provides a tongue pressing mechanism, including a fixed seat, and a tongue receiving cavity is arranged on the fixed seat; a rotating shaft capable of frictional contact with the lock tongue is arranged in the tongue receiving cavity. The present utility model converts the hard contact pressing force into the pressure generated by pressing the lock tongue, thereby driving the rotation of the rotating shaft on the fixed seat. The frictional force generated by the contact between the rotating shaft and the lock tongue offsets part of the lock tongue pressure during pressing, thus reducing the loss of the pressing connecting piece, improving the service life of the fixed seat. At the same time, when the rotating shaft is worn or deformed, there is no need to replace the entire fixed seat, only the rotating shaft needs to be replaced. Moreover, the rotating shaft is convenient to disassemble and the replacement cost is low. Description of the Drawings
[0017] Figure 1 is a schematic structural diagram of a tongue pressing mechanism adopted in the prior art;
[0018] Figure 2 is a usage scenario diagram of a tongue pressing mechanism adopted in the prior art;
[0019] Figure 3 is a schematic diagram of the cooperation state between the tongue pressing mechanism provided by the present utility model and the lock tongue;
[0020] Figure 4 is a schematic structural diagram of the tongue pressing mechanism provided by the present utility model;
[0021] Figure 5 is a schematic cross-sectional structural diagram of the tongue pressing mechanism provided by the present utility model;
[0022] Wherein:
[0023] 1 - tongue pressing mechanism; 101 - fixed seat; 102 - rolling bearing; 103 - rotating shaft; 2 - lock tongue. Detailed Embodiments
[0024] SeeFigure 4 and Figure 5 , the present utility model provides a lock tongue pressing mechanism, which includes a fixed seat 101, and a lock tongue receiving cavity is provided on the fixed seat 101; a rotating shaft 103 that can rub against the lock tongue is provided in the lock tongue receiving cavity. When the lock tongue pressing device provided by the present utility model is working specifically, the lock tongue contacts the rotating shaft 103, and after squeezing the rotating shaft 103, the rotating shaft 103 is driven to rotate until the lock tongue completely extends into the lock tongue receiving cavity. Finally, the lock tongue is blocked and limited by the rotating shaft 103 and is pressed by the rotating shaft 103. When the lock tongue squeezes the rotating shaft 103 to rotate, the frictional force generated between the lock tongue and the rotating shaft 103 offsets part of the lock tongue pressure during pressing, the pressure received by the fixed seat 101 is reduced, and the deformation at the pressing part of the rotating shaft 103 and the lock tongue is reduced accordingly, thereby reducing the loss of the fixed seat rotating shaft.
[0025] See Figure 4 , the lock tongue receiving cavity is a U-shaped groove formed by extending from the outer surface of the side part of the fixed seat 101 towards the center of the fixed seat 101; the rotating shaft 103 straddles the U-shaped groove. The U-shaped groove includes a first side wall and a second side wall opposite to the first side wall; the rotating shaft 103 straddles the first side wall and the second side wall.
[0026] Among them, the rotating shaft 103 straddling the two side walls can be two different structures:
[0027] For the first structure, a through hole penetrating the side wall is provided on the first side wall, and a counterbore is provided on the second side wall; one end of the rotating shaft 103 is placed in the through hole of the first side wall, and the other end is placed in the counterbore of the second side wall. That is, the rotating shaft 103 extends into from the through hole of the first side wall and finally stops in the counterbore of the second side wall. The aperture of the through hole and the aperture of the counterbore can be slightly larger than or larger than the outer diameter of the rotating shaft 103. Of course, a limiting member, such as a T-shaped bolt or a snap ring coaxial with the rotating shaft 103, is provided at the end of the rotating shaft 103 to prevent the rotating shaft 103 from popping out of the through hole of the first side wall and improve stability. Exemplarily, see Figure 5 , the through hole can be a stepped hole, and the connecting bolt provided at the end of the rotating shaft 103 is stuck on the side wall of the stepped hole to play a stabilizing role. Exemplarily, when the limiting member is a bolt, the bolt is threadedly connected to the rotating shaft.
[0028] For the second structure, through holes penetrating the side walls are provided on both the first side wall and the second side wall, and both ends of the rotating shaft 103 are respectively placed in the through hole of the first side wall and the through hole of the second side wall, as shown in Figure 5 . Through holes are provided on both sides. On the one hand, it is convenient for processing. On the other hand, it is convenient to act on both ends of the rotating shaft 103 at the same time, and it is more convenient for maintenance or replacement. In this structure, the structure of the through hole and the limiting member that may be provided in the through hole for limiting the rotating shaft 103 are the same as those adopted in the first structure, and will not be elaborated here.
[0029] Regardless of the aforementioned structure, when the rotating shaft 103 is worn or deformed, it is not necessary to replace the entire fixed seat. Only the limiting member provided at the end of the rotating shaft 103 needs to be disassembled, and the rotating shaft 103 can be pulled out to complete the replacement of the rotating shaft 103.
[0030] See Figure 5 , to facilitate the rotation of the rotating shaft 103, the tongue pressing mechanism provided by the present utility model further includes a rolling bearing 102 provided on the U-shaped groove; the rotating shaft 103 is provided in the tongue receiving cavity through the rolling bearing 102. Exemplarily, the rolling bearing 102 can be one group or multiple groups. Taking Figure 5 as an example, the rolling bearing 102 is two groups, which are respectively provided in the stepped holes on opposite sides of the fixed seat 101.
[0031] See Figure 3 , while providing the tongue pressing mechanism, the present utility model also provides a lock based on the tongue pressing mechanism. The lock includes a tongue 2 and a tongue pressing mechanism 1; the position of the tongue 2 corresponds to the position of the tongue pressing mechanism 1; the tongue 2 is placed in the tongue receiving cavity of the tongue pressing mechanism 1. The end of the tongue 2 is placed in the tongue receiving cavity of the tongue pressing mechanism 1 after rubbing against the rotating shaft 103 of the tongue pressing mechanism 1. The end of the tongue 2 is in linear contact with the rotating shaft 103 of the tongue pressing mechanism 1. Exemplarily, the tongue 2 can be the tongue of any lock and can cooperate with the tongue pressing mechanism 1 provided by the present utility model. For example, a lever-type tongue can be used. Exemplarily, the tongue pressing mechanism provided by the present utility model can be directly used on a 3D forming device, especially at the door of the forming chamber of a 3D forming device. For example, when closing the door, it can be buckled through the present utility model. Due to the structural change of the present utility model, the tongue 2 slides into the tongue receiving cavity by rubbing, and the tongue pressing mechanism 1 presses the tongue 2, rather than entering the tongue receiving cavity in a hard contact or hard extrusion manner. Therefore, the vibration generated by collision can be significantly reduced for the tongue pressing mechanism 1, which can not only reduce the loss of the sealing door, but also provide a relatively stable forming environment and further improve the forming quality.
Claims
1. A locking tongue pressing mechanism, characterized in that: The lock tongue pressing mechanism comprises a fixing seat (101), a lock tongue accommodating cavity is arranged on the fixing seat (101), and a rotating shaft (103) capable of rubbing against the lock tongue is arranged in the lock tongue accommodating cavity.
2. The locking tongue pressing mechanism according to claim 1, characterized in that: The locking tongue accommodating cavity is a U-shaped groove extending from the outer surface of the side of the fixing seat (101) toward the center of the fixing seat (101); the rotating shaft (103) spans the U-shaped groove.
3. The locking tongue pressing mechanism according to claim 2, characterized in that: The U-shaped groove comprises a first side wall and a second side wall opposite to the first side wall; the rotating shaft (103) spans the first side wall and the second side wall.
4. The locking tongue pressing mechanism according to claim 3, characterized in that: The first side wall is provided with a through hole penetrating the side wall, and the second side wall is provided with a countersunk hole; one end of the rotating shaft (103) is placed in the through hole of the first side wall, and the other end is placed in the countersunk hole of the second side wall.
5. The locking tongue pressing mechanism according to claim 3, characterized in that: The first side wall and the second side wall are both provided with through holes penetrating the side walls, and two ends of the rotating shaft (103) are respectively placed in the through hole of the first side wall and the through hole of the second side wall.
6. The locking tongue pressing mechanism according to any one of claims 2 to 5, characterized in that: The rotating shaft (103) comprises a connecting shaft and a limiting member arranged at the end of the connecting shaft; the limiting member is a bolt or an elastic retaining ring.
7. The locking tongue pressing mechanism according to claim 6, characterized in that: The locking tongue pressing mechanism further comprises a rolling bearing (102) arranged on the U-shaped groove; the rotating shaft (103) spans over the U-shaped groove via the rolling bearing (102); the rolling bearing (102) is one group or multiple groups.
8. A lock, characterized in that: The lock comprises a lock tongue (2) and a lock tongue pressing mechanism (1) as described in any one of claims 1 to 7; the position of the lock tongue (2) corresponds to the position of the lock tongue pressing mechanism (1); the lock tongue (2) is placed in a lock tongue accommodating cavity of the lock tongue pressing mechanism (1).
9. The lock according to claim 8, characterized in that: The end of the lock tongue (2) is placed in the lock tongue accommodating cavity of the lock tongue pressing mechanism (1) after rubbing against the rotating shaft (103) of the lock tongue pressing mechanism (1).
10. The lock according to claim 8 or 9, characterized in that: The end of the lock tongue (2) is in linear contact with the rotating shaft (103) of the lock tongue pressing mechanism (1).