A door closer

Abstract

The utility model relates to door stop technology field discloses a door stop, including with the installation frame of door frame, the inside of installation frame is provided with the rotating plate, the rear side of installation frame is provided with magnetism ware, the rear side of rotating plate is provided with the suction block, the outside of magnetism ware is provided with magnetic force board, the front side fixed connection of magnetism ware and suction block has the snap -fit assembly for quick installation, the inside of installation frame and rotating plate all are provided with two cavities, the inside fixed connection of cavity has the fixed axle, the outside of fixed axle is equipped with the spring, the outside sliding connection of fixed axle has the sliding block. In the utility model, through the installation plate of snap -fit assembly drives the insertion board to slide into the cavity of installation frame or rotating plate, cooperation insertion board extrusion snap -fit board makes spring compression, when spring pushes sliding block reset when snap -fit groove and snap -fit board correspond, let snap -fit board snap into snap -fit groove, realized the quick installation of magnetism ware and installation frame, suction block and rotating plate.

Description

Technical Field

[0001] This utility model relates to the field of door catches, and more particularly to a door catcher. Background Technology

[0002] In fields such as construction and equipment manufacturing, the closing and positioning of doors, such as interior doors and industrial equipment doors, relies on door catch sensors to ensure that the door remains stable after closing, preventing accidental shaking or unauthorized opening, and ensuring safety and convenience. The core of a door catch sensor is to achieve door positioning through the attraction of magnetic components, and the installation stability of these magnetic components directly affects the positioning accuracy.

[0003] However, existing door sensor installations often use traditional methods such as bolting and welding to connect the magnet to the mounting frame, and the suction block to the rotating plate. These methods are cumbersome, require tools, and result in significant installation time, thus reducing installation efficiency and failing to meet the need for rapid door assembly.

[0004] Therefore, a door catcher is proposed to address the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a door catcher, which aims to improve the problem of cumbersome installation of door catcher sensors in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A door catch includes a mounting frame for installation on a door frame. A rotating plate is disposed inside the mounting frame. A magnet is disposed on the rear side of the mounting frame. A suction block is disposed on the rear side of the rotating plate. A magnetic plate is disposed outside the magnet. A locking assembly for quick installation is fixedly connected to the front sides of the magnet and the suction block. Two cavities are formed inside both the mounting frame and the rotating plate. A fixed shaft is fixedly connected inside each cavity. A spring is sleeved on the outside of the fixed shaft. A sliding block is slidably connected to the outside of the fixed shaft. A locking plate is fixedly connected to the outside of the sliding block. A handle is fixedly connected to the outside of the rotating plate.

[0008] As a further description of the above technical solution:

[0009] The engaging assembly includes a mounting plate, the rear sides of the two mounting plates are respectively fixedly connected to the front sides of the magnet and the engaging block, and the front side of the mounting plate is fixedly connected to two insertion plates, the outer side of the insertion plates having engaging grooves;

[0010] As a further description of the above technical solution:

[0011] One end of the spring is fixedly connected to the outside of the sliding block, and the other end of the spring is fixedly connected to the inner wall of the cavity;

[0012] As a further description of the above technical solution:

[0013] The sliding block is externally slidably connected to the inside of the cavity, and the locking plate is externally slidably connected to the inside of the cavity;

[0014] As a further description of the above technical solution:

[0015] The exterior of one of the mounting plates is in contact with the exterior of the rotating plate, and the exterior of the other mounting plate is in contact with the exterior of the mounting frame;

[0016] As a further description of the above technical solution:

[0017] One side of the locking plate engages with the inside of the locking groove, and the outside of the insertion plate is slidably connected to the inside of the cavity;

[0018] As a further description of the above technical solution:

[0019] The magnet and the attraction block are arranged opposite to each other, and the two are magnetically attracted to achieve the positioning of the rotating plate. The magnetic plate is attached to the outside of the magnet to enhance the attraction force between the magnet and the attraction block.

[0020] As a further description of the above technical solution:

[0021] The handle provides a point of force for opening the rotating plate, making it convenient for the operator to pull the rotating plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the mounting plate of the locking assembly drives the insertion plate to slide into the cavity of the mounting frame or rotating plate. The insertion plate, in conjunction with the locking plate, compresses the spring. When the locking groove corresponds to the locking plate, the spring pushes the sliding block to reset, allowing the locking plate to engage with the locking groove. This achieves rapid installation of the magnet and the mounting frame, and the suction block and the rotating plate, while ensuring the stability of the magnet and the suction block, thus laying a solid structural foundation for the subsequent adsorption and positioning of the door.

[0024] 2. In this utility model, the magnetic plate outside the magnet enhances the adsorption force, so that the suction block and the magnet are magnetically attracted to each other when the rotating plate is closed. Combined with the locking plate and locking groove of the locking assembly, and the spring and sliding block, the magnet and suction block are stabilized, achieving precise positioning after the rotating plate is closed, effectively preventing the rotating plate from accidentally shaking or opening on its own, and ensuring the stability of the door in the closed state. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a door catch proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a magnetic door catcher proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A;

[0028] Figure 4 This is a schematic diagram of the structure of the insertion plate of a door catch according to the present invention.

[0029] Legend:

[0030] 1. Mounting frame; 2. Rotating plate; 3. Magnet; 4. Suction block; 5. Magnetic plate; 6. Mounting plate; 7. Handle; 8. Cavity; 9. Fixed shaft; 10. Spring; 11. Sliding block; 12. Clamping plate; 13. Insertion plate; 14. Clamping groove. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 4This utility model provides an embodiment of a door catcher, including a mounting frame 1, which serves as the basic mounting carrier for a door catcher sensor, providing mounting space and support structure for components such as a rotating plate 2 and a magnet 3, ensuring the orderly layout of each component, and forming the framework of the entire device. The rotating plate 2 is disposed inside the mounting frame 1, serving as a movable door part. Through its cooperation with the mounting frame 1, it realizes the opening and closing action of the door and is the direct object of the door catcher sensor. Its closed state is positioned by the attraction between the magnet 3 and the suction block 4. A magnet 3 is disposed on the rear side of the mounting frame 1 to maintain the attraction when the door is closed. The magnetic source provided by the rotating plate 2, in conjunction with the suction block 4, generates an adsorption force and is one of the core magnetic components for achieving stable door closure. The suction block 4 is provided on the rear side of the rotating plate 2, corresponding to the magnet 3. During the closing process of the rotating plate 2, it approaches the magnet 3 and attracts the magnet 3 with the magnet, thereby achieving the positioning of the rotating plate 2 and ensuring that the door remains stable after closing. A magnetic plate 5 is provided on the outside of the magnet 3, which is attached to the outside of the magnet 3. It can enhance the magnetic strength of the magnet 3 itself, thereby increasing the adsorption force between the magnet 3 and the suction block 4, making the adsorption positioning after the door is closed more firmly.

[0033] The front sides of the magnet 3 and the suction block 4 are fixedly connected to a snap-fit ​​assembly for quick installation. This provides a fast and stable installation structure for the connection between the magnet 3 and the mounting frame 1, and between the suction block 4 and the rotating plate 2. Assembly can be completed without complicated tools, improving installation efficiency and component connection stability. The snap-fit ​​assembly includes a mounting plate 6, which serves as a connection medium between the magnet 3, the suction block 4 and the mounting frame 1 and the rotating plate 2. Through its contact with the mounting frame 1 and the rotating plate 2 and the cooperation with the insertion plate 13, the magnet 3 and the suction block 4 are quickly installed and fixed, ensuring the structural stability of subsequent adsorption and positioning. The rear sides of the two mounting plates 6 are respectively fixedly connected to the front sides of the magnet 3 and the suction block 4, fixing the mounting plates 6 to the magnet 3 and the suction block 4. This allows the mounting plates 6 to drive the magnet 3 and the suction block 4 to perform synchronous installation operations, providing a structural basis for the subsequent cooperation between the insertion plate 13 and the cavity 8.

[0034] One of the mounting plates 6 has its outer surface in contact with the outer surface of the rotating plate 2, and the other mounting plate 6 has its outer surface in contact with the outer surface of the mounting frame 1. Through the contact between the mounting plate 6 and the rotating plate 2 and mounting frame 1, the installation positions of the magnet 3 and the suction block 4 are initially positioned, ensuring that the insertion plate 13 can be accurately aligned with the cavity 8, providing a positional reference for subsequent rapid installation. Two insertion plates 13 are fixedly connected to the front side of the mounting plate 6 for insertion into the cavity 8 inside the mounting frame 1 or the rotating plate 2. This is a key structure for achieving rapid installation of the locking assembly. Installation and fixation are completed through cooperation with the cavity 8 and the locking plate 12. The outer surface of the insertion plate 13 is slidably connected to the inside of the cavity 8. The insertion plate 13 can... The cavity 8 slides inside, providing movement space for the clamping plate 12 to be squeezed and engaged with the clamping groove 14 during installation. This is the basic movement for achieving rapid installation. The insertion plate 13 has a clamping groove 14 on its outside, providing a space structure for the clamping plate 12 to engage. When the clamping plate 12 engages with the clamping groove 14, it can fix the insertion plate 13 inside the cavity 8, thereby achieving stable installation of the magnet 3 or the attraction block 4. One side of the clamping plate 12 engages with the inside of the clamping groove 14. Through the engagement with the clamping groove 14, the position of the insertion plate 13 inside the cavity 8 is restricted, making it difficult for the insertion plate 13 to slide out easily. This stably fixes the magnet 3 or the attraction block 4 on the mounting frame 1 or the rotating plate 2.

[0035] Both the mounting frame 1 and the rotating plate 2 have two cavities 8 inside, providing space for the insertion plate 13 to be accommodated and slid. This provides the spatial basis for the quick installation of the locking assembly. The components are installed by cooperating with the cavity 8, the insertion plate 13, and the locking plate 12. A fixed shaft 9 is fixedly connected inside the cavity 8, providing a support structure for the installation and movement of the sliding block 11 and the spring 10, constraining the movement trajectory of the sliding block 11, and ensuring that the sliding block 11 slides stably along the direction of the fixed shaft 9. A spring is sleeved on the outside of the fixed shaft 9. Spring 10, through its own elastic deformation, is compressed and stores elastic potential energy when the insert plate 13 presses against the locking plate 12. When the locking groove 14 corresponds to the locking plate 12, the potential energy is released to push the sliding block 11 to reset, so that the locking plate 12 is locked into the locking groove 14, realizing automatic locking and fixing. The external sliding connection of the fixed shaft 9 is the sliding block 11, which can slide along the fixed shaft 9 and drive the locking plate 12 to move synchronously. It is a key component for transmitting the elastic force of spring 10 and the squeezing force of insert plate 13, realizing the engagement or separation of locking plate 12 and locking groove 14.

[0036] One end of the spring 10 is fixedly connected to the outside of the sliding block 11, and the other end of the spring 10 is fixedly connected to the inner wall of the cavity 8. By fixing both ends of the spring 10 to the sliding block 11 and the inner wall of the cavity 8 respectively, the elastic force of the spring 10 can be effectively transmitted to the sliding block 11, ensuring that the spring 10 can drive the sliding block 11 to move precisely when compressed and reset. A locking plate 12 is fixedly connected to the outside of the sliding block 11 and moves synchronously with the sliding block 11. By engaging or disengaging with the locking groove 14, the insertion plate 13 is fixed or released, thus completing the quick installation of the locking assembly. The core actuator, the sliding block 11, is externally slidably connected to the inside of the cavity 8. The sliding block 11 slides inside the cavity 8, providing movement space for the engagement of the locking plate 12 and the locking groove 14. At the same time, the constraint of the cavity 8 ensures the stability of the movement direction of the sliding block 11. The locking plate 12 is externally slidably connected to the inside of the cavity 8. The locking plate 12 slides inside the cavity 8, and can retract into the cavity 8 under the pressure of the insertion plate 13, or extend and engage in the locking groove 14 under the push of the spring 10, realizing the switching of the engagement state and ensuring the convenience and stability of installation.

[0037] A handle 7 is fixedly connected to the outside of the rotating plate 2, providing a force point for the operator to open the rotating plate 2. This allows the operator to pull the rotating plate 2, separating the suction block 4 from the magnet 3, thus enabling the door to open smoothly. The magnet 3 and the suction block 4 are arranged opposite each other, and they achieve the positioning of the rotating plate 2 through magnetic attraction. When the rotating plate 2 is closed, the magnet 3 and the suction block 4 are arranged opposite each other, and they attract each other magnetically, providing a positioning force for the rotating plate 2 after closing, ensuring that the door remains closed. The magnetic plate 5 is attached to the outside of the magnet 3. The handle 7 is used to enhance the attraction between the magnet 3 and the suction block 4. It is attached to the outer surface of the magnet 3 to improve the magnetic effect of the magnet 3 and make the attraction between the magnet 3 and the suction block 4 stronger. This makes the positioning of the rotating plate 2 more stable after it is closed, preventing the door from shaking or opening accidentally. The handle 7 is used to provide a force application point for opening the rotating plate 2, making it convenient for the operator to pull the rotating plate 2. It provides a structure that makes it easy for the operator to apply force, so that the operator can easily pull the rotating plate 2 to overcome the attraction between the magnet 3 and the suction block 4 and realize the opening operation of the door.

[0038] Working Principle: When installing the magnet 3 and the suction block 4, the operator aligns the mounting plate 6 of the locking assembly with the rotating plate 2 and the mounting frame 1, ensuring that the insertion plate 13 on the front side of the mounting plate 6 is aligned with the cavity 8 inside the mounting frame 1 or the rotating plate 2. Then, the insertion plate 13 is pushed into the cavity 8. During this sliding process, the insertion plate 13 presses against the locking plate 12. The locking plate, pushed by the insertion plate 13, causes the sliding block 11 to slide along the fixed shaft 9, simultaneously compressing the spring 10 sleeved on the outside of the fixed shaft 9. When the locking groove 14 on the insertion plate 13 moves to the position corresponding to the locking plate 12, the spring 10 releases its elastic potential energy, pushing the sliding block 11 back to its original position. This causes the locking plate 12 to engage with the locking groove 14, completing the rapid installation of the magnet 3 with the mounting frame 1 and the suction block 4 with the rotating plate 2. This ensures the stability of the positions of the magnet 3 and the suction block 4, providing a structural foundation for the subsequent adsorption and positioning of the door.

[0039] When the operator pushes the rotating plate 2 towards the mounting frame 1 using handle 7 to close it, the suction block 4 on the rear side of the rotating plate 2 gradually approaches the magnet 3 on the rear side of the mounting frame 1. Since the magnet 3 has a magnetic plate 5 attached to its exterior, the magnetic plate 5 enhances the attraction force of the magnet 3, allowing the suction block 4 and the magnet 3 to attract each other magnetically as they approach, achieving initial positioning of the rotating plate 2. Simultaneously, the locking assembly, through the engagement of the insertion plate 13 and the locking plate 12, secures the magnet 3 and the suction block 4 to the mounting frame 1 and the rotating plate 2 respectively, preventing positioning deviations due to loose components during attraction, ensuring the rotating plate 2 remains stable after closing, and preventing accidental shaking or self-opening.

[0040] When the rotating plate 2 needs to be opened, the magnet 3 is first turned off. Then, the operator pulls the handle 7, which provides a force point for opening the rotating plate 2, making it easy for the operator to apply force. This causes the suction block 4 to gradually move away from the magnet 3, thus opening the door. During this process, the engagement structure of the engagement plate 12 and engagement groove 14 of the engagement assembly, as well as the elastic support of the spring 10 and sliding block 11 on the engagement plate 12, effectively prevent the magnet 3 or the suction block 4 from accidentally falling off due to the vibration of the door movement.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A door closer, comprising a mounting frame (1) for mounting to a door frame, characterized in that: The mounting frame (1) has a rotating plate (2) inside, a magnet (3) on the rear side of the mounting frame (1), a suction block (4) on the rear side of the rotating plate (2), and a magnetic plate (5) on the outside of the magnet (3). A snap-fit ​​assembly for quick installation is fixedly connected to the front sides of the magnet (3) and the suction block (4). The snap-fit ​​assembly includes a mounting plate (6). The rear sides of the two mounting plates (6) are respectively fixedly connected to the front sides of the magnet (3) and the suction block (4). Two insertion plates (13) are fixedly connected to the front side. The insertion plates (13) have a locking groove (14) on the outside. The mounting frame (1) and the rotating plate (2) each have two cavities (8). A fixed shaft (9) is fixedly connected inside the cavity (8). A spring (10) is sleeved on the outside of the fixed shaft (9). A sliding block (11) is slidably connected to the outside of the fixed shaft (9). A locking plate (12) is fixedly connected to the outside of the sliding block (11). A handle (7) is fixedly connected to the outside of the rotating plate (2).

2. A door catch according to claim 1, characterized in that: One end of the spring (10) is fixedly connected to the outside of the sliding block (11), and the other end of the spring (10) is fixedly connected to the inner wall of the cavity (8).

3. A door catch according to claim 1, characterized in that: The external sliding block (11) is slidably connected to the inside of the cavity (8), and the external sliding plate (12) is slidably connected to the inside of the cavity (8).

4. A door catch according to claim 1, characterized in that: One of the mounting plates (6) has its exterior in contact with the exterior of the rotating plate (2), and the other mounting plate (6) has its exterior in contact with the exterior of the mounting frame (1).

5. A door catch according to claim 1, characterized in that: One side of the locking plate (12) engages with the inside of the locking groove (14), and the outside of the insertion plate (13) is slidably connected to the inside of the cavity (8).

6. A door catch according to claim 1, characterized in that: The magnet (3) and the suction block (4) are arranged opposite to each other. The two are magnetically attracted to achieve the positioning of the rotating plate (2). The magnetic plate (5) is attached to the outside of the magnet (3) to enhance the attraction between the magnet (3) and the suction block (4).

7. A door catch according to claim 1, characterized in that: The handle (7) is used to provide a force point for opening the rotating plate (2), making it convenient for the operator to pull the rotating plate (2).

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