Door closing fixer

Abstract

The utility model discloses a door closing fixator which comprises a lock seat structure and a lock catch structure matched with the lock seat structure. The lock seat structure comprises a carrier plate, the carrier plate is arranged on the surface of one side of the mounting seat, a first constant-force volute spiral spring piece and a second constant-force volute spiral spring piece are arranged on the two sides of the carrier plate respectively, and a noise reduction assembly for reducing noise of the lock catch structure is further arranged in the middle of the carrier plate. The lock catch structure comprises a locking buckle, and a first positioning arc-shaped part and a second positioning arc-shaped part which correspond to the first constant-force volute spiral spring piece and the second constant-force volute spiral spring piece are arranged on the two sides of the locking buckle. The locking buckle can be effectively prevented from being deformed or damaged, the service life is prolonged, meanwhile, buffering and noise reduction are conducted on the locking buckle, the influence of noise on the environment is greatly reduced, and using is more silent and comfortable.

Description

Technical Field

[0001] This utility model belongs to the field of hardware parts technology, specifically relating to a door closing retainer. Background Technology

[0002] To prevent damage to the door panel from excessive impact when opening or closing, the common solution is to install a sliding rail in the door frame, with a slider inside the rail, and a door closer on the door panel. The door closer uses a main arm to form a pivot connection with the slider.

[0003] However, current door closers cannot buffer the impact force of the latch movement during use, which can easily cause the latch to deform and be damaged after long-term use. At the same time, they cannot eliminate the noise during closing, resulting in excessive noise that affects the use of the door. Therefore, we propose a door closer fixing device. Utility Model Content

[0004] The purpose of this utility model is to provide a door closer fixing device to solve the problems mentioned in the background art, such as the inability of current door closers to buffer the impact force of the latch movement during use, which can easily cause the latch to deform and be damaged after long-term use, and the inability to eliminate noise during closing, resulting in excessive noise and affecting use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a door closing device, comprising a lock seat structure and a latch structure that cooperates with the lock seat structure;

[0006] A lock seat structure, the lock seat structure includes a carrier plate, the carrier plate is disposed on one side surface of the mounting base, a first constant force spiral spring sheet and a second constant force spiral spring sheet are respectively disposed on both sides of the carrier plate, and a noise reduction component for reducing noise of the latch structure is also disposed in the middle of the carrier plate;

[0007] The locking structure includes a locking buckle, and the locking buckle has a first positioning arc-shaped part and a second positioning arc-shaped part on both sides, corresponding to the first constant force spiral spring sheet and the second constant force spiral spring sheet.

[0008] Preferably, the locking buckle is disposed at one end of the connecting seat, and the connecting seat is disposed on one side of the mounting plate.

[0009] The connecting seat facilitates the fixed installation of the locking buckle, while ensuring the engagement distance between the locking buckle and the first and second constant force spiral spring plates.

[0010] Preferably, a first arc-shaped guide portion is provided on one side of the locking buckle, and a second arc-shaped guide portion is provided on the other side of the locking buckle.

[0011] By setting up the arc-shaped inlet and the second arc-shaped inlet, the first constant force spiral spring sheet and the second constant force spiral spring sheet can be stretched simultaneously during the door closing operation.

[0012] Preferably, the noise reduction assembly includes a support plate, which is movably disposed within the mounting opening, which is located in the middle of the carrier plate, and an elastic buffer pad is also provided on one side of the support plate.

[0013] The elastic buffer pads can cushion the pressure of the locking buckle, thereby reducing the impact and achieving noise reduction.

[0014] Preferably, the mounting port is connected to the mounting base, and a shock-absorbing spring is also provided on one side of the mounting base, with one end of the shock-absorbing spring connected to the support plate.

[0015] By using shock-absorbing springs, the impact force of the locking latch can be completely absorbed, preventing noise from being generated during the closing process.

[0016] Preferably, the support plate is further provided with limiting sliders on both sides, one end of the limiting slider is slidably disposed in the limiting groove, and the limiting groove is symmetrically disposed on both sides of the mounting base.

[0017] The movement of the mounting plate can be guided by the setting of the limit slider.

[0018] Preferably, countersunk holes are provided on both sides of the carrier plate. The countersunk holes extend into and through the mounting base. The countersunk holes allow for the concealed installation of screws.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] (1) When the door is closed, this utility model can buffer the impact force of the lock buckle. When the door is closed, it can automatically lock and fix the lock buckle, which can effectively prevent the lock buckle from being deformed or damaged and extend its service life.

[0021] (2) This utility model can buffer and reduce noise when the locking latch is closed, greatly reducing the impact of noise on the environment and making it quieter and more comfortable to use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the split structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the lock seat in this utility model;

[0024] Figure 3 This is a half-sectional view of the lock seat structure in this utility model;

[0025] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0026] Figure 5 This is a schematic diagram of the locking structure in this utility model;

[0027] Figure 6 This is a schematic diagram of the lock seat structure and the latch structure in the engaged state of this utility model;

[0028] In the diagram: 1. Lock seat structure; 2. Locking structure; 11. First constant force spiral spring sheet; 12. Carrier plate; 13. Mounting base; 14. Noise-absorbing component; 15. Second constant force spiral spring sheet; 16. Countersunk hole; 21. Locking buckle; 22. First arc-shaped guide part; 23. First positioning arc-shaped part; 24. Mounting plate; 25. Connecting seat; 26. Second positioning arc-shaped part; 27. Second arc-shaped guide part; 141. Elastic buffer pad; 142. Groove; 143. Shock-absorbing spring; 144. Support plate; 145. Mounting port; 146. Limiting slider; 147. Limiting groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-6 This utility model provides a technical solution: a door closing device, including a lock seat structure 1 and a latch structure 2;

[0031] The lock seat structure 1 includes a carrier plate 12, which is disposed on one side surface of the mounting base 13. A first constant force spiral spring sheet 11 and a second constant force spiral spring sheet 15 are respectively disposed on both sides of the carrier plate 12.

[0032] The locking structure 2 includes a locking buckle 21, and a first positioning arc-shaped part 23 and a second positioning arc-shaped part 26 corresponding to the first constant force spiral spring plate 11 and the second constant force spiral spring plate 15 are provided on both sides of the locking buckle 21.

[0033] The locking buckle 21 is located at one end of the connecting seat 25, which is located on one side of the mounting plate 24. This facilitates the fixed installation of the locking buckle 21 and ensures the engagement distance between the locking buckle 21 and the first constant force spiral spring sheet 11 and the second constant force spiral spring sheet 15.

[0034] The locking buckle 21 has a first arc-shaped guide part 22 on one side and a second arc-shaped guide part 27 on the other side. When closing the door, it can simultaneously drive the first constant force spiral spring sheet 11 and the second constant force spiral spring sheet 15 to stretch.

[0035] In this application, the lock seat structure 1 is installed on the door frame, and the latch structure 2 is installed on the door body. When the door body moves on the slide rail, when the latch 21 contacts the first constant force spiral spring plate 11 and the second constant force spiral spring plate 15, the first arc-shaped guide part 22 and the second arc-shaped guide part 27 simultaneously drive the first constant force spiral spring plate 11 and the second constant force spiral spring plate 15 to stretch. The first constant force spiral spring plate 11 and the second constant force spiral spring plate 15 buffer the impact force on the latch 21. When the locking block is fully engaged, the first constant force spiral spring plate 11 and the second constant force spiral spring plate 15 reset and rewind, and engage in the first positioning arc-shaped part 23 and the second positioning arc-shaped part 26, automatically fixing the latch 21.

[0036] Please see Figure 3 as well as Figure 4 A sound-absorbing component 14 is also provided in the middle of the carrier plate 12. The sound-absorbing component 14 includes a support plate 144, which is movably disposed in the mounting port 145. The mounting port 145 is located in the middle of the carrier plate 12. An elastic buffer pad 141 is also provided on one side of the support plate 144, which can buffer the pressure of the locking buckle 21, thereby reducing the impact force and achieving the noise reduction function. The mounting port 145 is connected to the groove 142, which is disposed in the mounting base 13. A shock-absorbing spring 143 is also provided on one side of the groove 142. One end of the shock-absorbing spring 143 is connected to the support plate 144, which can completely absorb the impact force of the locking buckle 21 and avoid the generation of noise during the closing process.

[0037] When the locking buckle 21 is in contact with the elastic buffer pad 141, the elastic buffer pad 141 absorbs the impact force of the locking buckle 21 and reduces noise. At the same time, the elastic buffer pad 141 compresses the shock-absorbing spring 143 through the support plate 144, thereby achieving the effect of noise reduction.

[0038] Furthermore, limiting sliders 146 are also provided on both sides of the support plate 144. One end of the limiting slider 146 is slidably disposed in the limiting groove 147. The limiting groove 147 is symmetrically disposed on both sides of the mounting base 13. When the mounting plate 24 moves, it drives the limiting slider 146 to move in the limiting groove 147, which can guide the movement of the mounting plate 24.

[0039] Furthermore, countersunk holes 16 are provided on both sides of the carrier plate 12. The countersunk holes 16 extend into the mounting base 13 and penetrate through the mounting base 13. The countersunk holes 16 allow for the concealed installation of screws.

[0040] Working principle and usage process of this utility model:

[0041] First, the lock seat structure 1 is installed inside the door frame, and the latch structure 2 is installed on the door body. When the door body moves the latch structure 2, the locking latch 21 on the latch structure 2 contacts the first constant force spiral spring plate 11 and the second constant force spiral spring plate 15. At the same time, the first arc-shaped guide part 22 and the second arc-shaped guide part 27 simultaneously drive the first constant force spiral spring plate 11 and the second constant force spiral spring plate 15 to stretch. The first constant force spiral spring plate 11 and the second constant force spiral spring plate 15 buffer the impact force on the locking latch 21. When the locking block is fully engaged, the first constant force spiral spring plate 21... The first constant force spiral spring plate 11 and the second constant force spiral spring plate 15 are reset and wound up, and locked into the first positioning arc part 23 and the second positioning arc part 26 to automatically fix the locking buckle 21. At the same time, when the locking buckle 21 is in contact with the elastic buffer pad 141, the elastic buffer pad 141 absorbs the impact force of the locking buckle 21 and reduces noise. Meanwhile, the elastic buffer pad 141 moves through the support plate 144, and the support plate 144 moves to compress the shock-absorbing spring 143. The shock-absorbing spring 143 completely absorbs the pressure of the locking buckle 21, thereby achieving the effect of noise reduction.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A door closing retainer, characterized in that: It includes a lock base structure (1) and a latch structure (2) that cooperates with the lock base structure (1); The lock seat structure (1) includes a carrier plate (12), which is disposed on one side surface of the mounting base (13). A first constant force spiral spring sheet (11) and a second constant force spiral spring sheet (15) are respectively disposed on both sides of the carrier plate (12). A noise reduction component (14) for reducing noise in the latch structure (2) is also disposed in the middle of the carrier plate (12). The locking structure (2) includes a locking buckle (21), and the locking buckle (21) has a first positioning arc-shaped part (23) and a second positioning arc-shaped part (26) on both sides corresponding to the first constant force spiral spring sheet (11) and the second constant force spiral spring sheet (15).

2. The door closer as described in claim 1, characterized in that: The locking buckle (21) is located at one end of the connecting seat (25), and the connecting seat (25) is located on one side of the mounting plate (24).

3. A door closer retainer according to claim 2, characterized in that: The locking buckle (21) is provided with a first arc-shaped guide portion (22) on one side and a second arc-shaped guide portion (27) on the other side.

4. A door closer retainer according to claim 1, characterized in that: The noise reduction assembly (14) includes a support plate (144), which is movably disposed in the mounting port (145). The mounting port (145) is disposed in the middle of the carrier plate (12), and an elastic buffer pad (141) is also disposed on one side of the support plate (144).

5. A door closer as described in claim 4, characterized in that: The mounting port (145) is connected to the mounting base (13), and a shock-absorbing spring (143) is also provided on one side of the mounting base (13). One end of the shock-absorbing spring (143) is connected to the support plate (144).

6. A door closer retainer according to claim 5, characterized in that: The support plate (144) is also provided with limiting sliders (146) on both sides. One end of the limiting slider (146) is slidably disposed in the limiting groove (147), and the limiting groove (147) is symmetrically disposed on both sides of the mounting base (13).

7. A door closer retainer according to any one of claims 1-6, characterized in that: The carrier plate (12) is also provided with countersunk holes (16) on both sides, the countersunk holes (16) extend into the mounting base (13) and penetrate the mounting base (13).

Images