A door hinge system with rebound door opening function

Abstract

A box door hinge system with rebound door opening function, comprising a main door hinge A and a secondary door hinge B, which are respectively installed on both sides of a box body and a box door, and play the role of connecting the box door and the box body; wherein the main door hinge A and the secondary door hinge B both comprise a main body and a trigger hingedly installed thereon through a hinge shaft, and the trigger rotates around the hinge shaft between the main body to realize the opening and closing of the box door; the beneficial effect of the utility model is that the box door hinge system design of the utility model includes a unique spring mechanism, which allows the box door to automatically rebound to a certain angle after being unlocked. This automatic door opening function greatly reduces the burden of user operation, especially when the hand movement is limited or the box contents need to be quickly accessed, providing great convenience.

Description

Technical Field

[0001] The utility model relates to a hardware hinge, in particular to a box door hinge system with a rebound door opening function. Background Art

[0002] In modern mechanical design and manufacturing, the door hinge system is a key component commonly used in various cabinets such as lockers and electrical enclosures. It is responsible for connecting the door to the cabinet and realizing the opening and closing of the door. Traditional door hinge systems are mainly composed of hinges and connectors. The operation of these systems usually relies on users to push and pull the door manually.

[0003] However, the existing cabinet door hinge design generally has a significant shortcoming: the lack of automatic or semi-automatic door opening function. In the current technology, the user usually needs to manually pull the cabinet door to open after unlocking the cabinet door, which not only increases the inconvenience of operation, but also limits the flexibility of design. More specifically, in order to enable the cabinet door to be opened manually, almost all cabinet door designs must be equipped with a handle on the visible surface or side of the door. These handles often need to protrude from the surface of the cabinet door, which not only affects the overall appearance of the product, but may also cause safety issues in certain application scenarios, such as being easily hooked or collided in a small space.

[0004] In addition, the protruding handle also limits the aesthetics and modernity of the door in terms of design, especially in products that pursue minimalist and modern design, any irregularities on the surface may be regarded as a design defect. Therefore, how to eliminate the exposed handle while ensuring the easy operation of the door and improve the overall appearance of the product, it is necessary to make further improvements. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a door hinge system with a simple structure, easy to use, which can automatically or semi-automatically push open the door after the user unlocks it, thereby eliminating the need to manually open the door, and also makes the design more concise, and no longer needs to be equipped with a traditional protruding handle for the door.

[0006] The purpose of the utility model is achieved in the following way: a box door hinge system with rebound door opening function, which includes a main door hinge A and a secondary door hinge B, which are respectively installed on both sides of the box body and the box door, and play the role of connecting the box door and the box body;

[0007] Wherein, the main door hinge A and the auxiliary door hinge B both include a main body and a trigger hingedly mounted thereon via a hinge shaft, the trigger rotates around the hinge shaft between the main body to realize the opening and closing of the box door; the main body is a groove-shaped structure, a push spring frame is arranged in the groove, a mounting hole is arranged on the push spring frame, and also includes a shift fork, one end of the shift fork is slidably inserted into the mounting hole, and the other end is installed with a guide wheel via a sliding shaft, and both ends of the sliding shaft are inserted in the guide groove located on the main body and slide back and forth, and a spring is also arranged between the push spring frame and the main body, and the spring pushes the guide wheel to always move in the direction of the trigger through the push spring frame, and causes the guide wheel to slide on the side wall of the trigger, thereby generating a thrust to push the trigger to open;

[0008] A pulling arm is also installed in the main body, one end of the pulling arm is hinged to the trigger, and the other end of the pulling arm is installed with a guide shaft, which slides in the pulling arm slot on the main body;

[0009] In the auxiliary door hinge B, a first tension spring is also installed on the main body, and the first tension spring is connected to the guide shaft on the pull arm to generate power to pull the trigger to close;

[0010] In the main door hinge A, a linkage plate is also slidably installed in the main body, one end of the linkage plate is hinged to the guide shaft, and the other end of the linkage plate is provided with a limiting groove. A linkage shaft installed in the pull arm groove is inserted in the limiting groove. A second tension spring is also installed on the main body, and the second tension spring is connected to the linkage shaft. When the main door hinge A is opened to a set angle, the limiting groove acts on the linkage shaft to produce an elastic damping effect on the opening of the hinge.

[0011] Furthermore, the spring is sleeved outside the push spring frame, one end of the spring is pressed on the push spring frame, and the other end is pressed on the sliding shaft.

[0012] Furthermore: an air avoidance groove is provided on the pulling arm corresponding to the position of the sliding shaft and the guide wheel.

[0013] Furthermore: the limiting groove is a waist-shaped groove arranged on the linkage plate.

[0014] Furthermore, two linkage plates are provided, which respectively cover the two side ends of the pulling arm.

[0015] Furthermore, the tail of the main body is provided with a plurality of adjustment holes, the tension spring shaft is inserted into the installation hole, and the tail of the first tension spring or the second tension spring is connected to the tension spring shaft.

[0016] The beneficial effects of the utility model are: 1. Simple structure, low production cost and improved market competitiveness.

[0017] 2. The door hinge system design of the utility model includes a unique spring mechanism that allows the door to automatically open to a certain angle after being unlocked. This automatic door opening function greatly reduces the burden of user operation, especially when the hand movement is limited or the box contents need to be accessed quickly, providing great convenience.

[0018] 3. Due to the automatic pop-up feature of this system, the door can be easily opened without an exposed handle. This not only simplifies the overall design of the door, enhances the aesthetics and modernity of the product, but also avoids safety hazards caused by protruding handles, such as the risk of collision in a narrow space.

[0019] 4. The design of the utility model includes multiple springs and adjustable linkage mechanisms, so that the power and angle of the door opening can be adjusted according to different application requirements. This flexibility allows the hinge system to be applicable to doors of different sizes and weights, meeting a wider range of industrial and consumer product needs.

[0020] 5. When the door is opened to the set angle, the limit groove in the main door hinge acts on the linkage shaft, producing an elastic damping effect on the opening of the hinge, thereby avoiding impact caused by rapid opening of the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 , 2 This is the general assembly drawing of the utility model structure.

[0022] Figure 3 This is the structural assembly drawing of the utility model.

[0023] Figure 4 This is the assembly diagram of the main hinge structure in the utility model.

[0024] Figure 5 This is a cross-sectional view of the main hinge structure in the utility model.

[0025] Explanation of the reference numerals: 1 - main body; 11 - guide groove; 12 - pull arm groove; 13 - adjustment hole; 14 - tension spring shaft; 2 - trigger; 3 - hinge shaft; 4 - push spring frame; 41 - mounting hole; 5 - shift fork; 51 - sliding shaft; 52 - guide wheel; 53 - spring; 6 - pull arm; 61 - guide shaft; 62 - avoidance groove; 7 - first tension spring; 8 - linkage plate; 81 - limit groove; 82 - linkage shaft; 83 - second tension spring; A - main door hinge; B - auxiliary door hinge. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings. A door hinge system with a rebound door opening function, comprising a main door hinge A and a secondary door hinge B, which are respectively installed on both sides of a box body and a door, and play the role of connecting the door and the box body;

[0027] Wherein, the main door hinge A and the auxiliary door hinge B both include a main body 1 and a trigger 2 hingedly mounted thereon via a hinge shaft 3, the trigger 2 rotates around the hinge shaft 3 between the main body 1 to realize the opening and closing of the box door; the main body 1 is a groove-shaped structure, a push spring frame 4 is arranged in its groove, a mounting hole 41 is arranged on the push spring frame 4, and also includes a shift fork 5, one end of the shift fork 5 is slidably inserted into the mounting hole 41, and the other end is installed with a guide wheel 52 via a sliding shaft 51, and both ends of the sliding shaft 51 are inserted in the guide groove 11 located on the main body 1 and slide back and forth, and a spring 53 is also arranged between the push spring frame 4 and the main body 1, and the spring 53 pushes the guide wheel 52 to always move in the direction of the trigger 2 through the push spring frame 4, and makes the guide wheel 52 slide on the side wall of the trigger 2, thereby generating a thrust to push the trigger 2 to open;

[0028] The main body 1 is also provided with a pulling arm 6, one end of which is hinged to the trigger 2, and the other end of which is provided with a guide shaft 61, which slides in the pulling arm slot 12 on the main body 1;

[0029] In the auxiliary door hinge B, a first tension spring 7 is also installed on the main body 1, and the first tension spring 7 is connected to the guide shaft 61 on the pull arm 6 to generate power to pull the trigger 2 to close;

[0030] In the main door hinge A, a linkage plate 8 is also slidably installed in the main body 1. One end of the linkage plate 8 is hinged to the guide shaft 61, and the other end of the linkage plate 8 is provided with a limiting groove 81. A linkage shaft 82 installed in the pull arm groove 12 is inserted in the limiting groove 81. A second tension spring 83 is also installed on the main body 1, and the second tension spring 83 is connected to the linkage shaft 82. When the main door hinge A is opened to a set angle, the limiting groove 81 acts on the linkage shaft 82 to produce an elastic damping effect on the opening of the hinge.

[0031] In one embodiment, the spring 53 is sleeved outside the spring push frame 4 , one end of the spring 53 is pressed on the spring push frame 4 , and the other end of the spring 53 is pressed on the sliding shaft 51 .

[0032] In one embodiment, a clearance groove 62 is formed on the pulling arm 6 at positions corresponding to the sliding shaft 51 and the guide wheel 52 .

[0033] In one example, the limiting groove 81 is a waist-shaped groove provided on the linkage plate 8 .

[0034] In one embodiment, two linkage plates 8 are provided, covering both side ends of the pulling arm 6 respectively.

[0035] In one embodiment, a plurality of adjustment holes 13 are provided at the tail of the main body 1 , a tension spring shaft 14 is inserted into the mounting hole 41 , and the tail of the first tension spring 7 or the second tension spring 83 is connected to the tension spring shaft 14 .

[0036] Working principle: The hinge system in this case consists of two sets of devices, namely the main door hinge A and the auxiliary door hinge B, which have similar structures. Each hinge includes a main body 1, which has a groove structure and provides a platform for installing and supporting other components. The trigger is connected to the main body 1 through the hinge shaft 3. The trigger rotates around the hinge shaft and is directly responsible for guiding the opening and closing of the door.

[0037] A push spring is mounted in the groove of the main body and has at least one mounting hole 41 for positioning the fork. The design of the fork allows one end to slide in the mounting hole, while the other end is connected to the guide wheel 52 through the sliding shaft 51. This layout allows the fork to slide back and forth in the guide groove 11 of the main body, thereby effectively converting the pressure of the spring 53 into the force to push or pull the trigger.

[0038] It should be noted that the spring is located between the push spring frame and the main body, and it is the key to the rebound door opening mechanism. When the door is closed, the spring is compressed and accumulates energy. When the user unlocks the door, the spring is released, and the energy helps push the guide wheel toward the trigger, prompting the trigger to push the door open to a certain angle, thereby achieving the rebound opening effect.

[0039] In order to prevent the box door from falling down quickly under the action of gravity after opening and hitting the limit component or the table, a pull arm 6 is also provided in the main body in this case, one end of which is hingedly connected to the trigger 2, and the other end slides in the pull arm slot 12 of the main body 1 through the guide shaft 61. The first tension spring 7 installed on the secondary door hinge B is used to provide an elastic tension for the box door after closing and opening, so as to prevent it from opening too quickly.

[0040] Furthermore: as the opening angle of the door increases, when the acceleration and gravity of the door are greater than the tension of the first tension spring 7, the door will inevitably open too fast. Blindly increasing the tension of the first tension spring 7 will cause the tension to be too large in the initial stage of the door opening, which will make it difficult to rebound and open. Therefore, in this case, the adjustment function of the linkage plate 8 and the limit groove 81 is set. The linkage plate 8 slides inside the main body. It controls the opening angle and speed of the door through the interaction between the limit groove 81 on the linkage plate and the linkage shaft 82. When the door drives the hinge to open to the set angle, the trigger pulls the linkage plate through the pull arm, so that the limit groove on the linkage plate contacts the linkage shaft, thereby transmitting the tension to the second tension spring 83. The first tension spring and the second tension spring are simultaneously stressed to provide a buffer tension for the door to balance the gravity and acceleration impact force when the door is opened to a large angle. Finally, the door is opened smoothly.

[0041] Furthermore: In order to adapt to the weight of the door of different products, this case also has an adjustment hole at the rear of the main body, allowing the user to adjust the position and tension of the tension spring according to specific needs. This can not only customize the opening and closing force of the door, but also adjust the system response according to usage habits and environmental conditions.

[0042] In summary, this door hinge system achieves efficient and convenient door control function through clever mechanical design and precise component matching. This system not only improves user experience, but also extends the service life of the product by reducing physical wear, so it can be widely promoted and used.

[0043] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the scope of protection of the claims created by the utility model.

Claims

1. A door hinge system with rebound door opening function, characterized in that: It includes a main door hinge (A) and a secondary door hinge (B), which are installed on both sides of the box body and the box door respectively, and play the role of connecting the box door and the box body; The main door hinge (A) and the auxiliary door hinge (B) each comprise a main body (1) and a trigger (2) hingedly mounted thereon via a hinge shaft (3), wherein the trigger (2) rotates around the hinge shaft (3) between the main body (1) to realize the opening and closing of the door; the main body (1) is in a groove-shaped structure, wherein a push spring frame (4) is arranged in the groove, wherein the push spring frame (4) is provided with a mounting hole (41), and further comprises a shift fork (5), wherein one end of the shift fork (5) is slidably inserted into the mounting hole (41). ), and a guide wheel (52) is installed at the other end through a sliding shaft (51). Both ends of the sliding shaft (51) are inserted into the guide groove (11) located on the main body (1) to slide back and forth. A spring (53) is also arranged between the push spring frame (4) and the main body (1). The spring (53) pushes the guide wheel (52) to always move in the direction of the trigger (2) through the push spring frame (4), and makes the guide wheel (52) slide on the side wall of the trigger (2), thereby generating a thrust to push the trigger (2) to open; A pulling arm (6) is also installed in the main body (1), one end of the pulling arm (6) is hinged to the trigger (2), and a guide shaft (61) is installed at the other end of the pulling arm (6), and the guide shaft (61) is located in a pulling arm slot (12) on the main body (1) and slides; In the auxiliary door hinge (B), a first tension spring (7) is also installed on the main body (1), and the first tension spring (7) is connected to the guide shaft (61) on the pull arm (6) to generate power for pulling the trigger (2) to close; In the main door hinge (A), a linkage plate (8) is also slidably installed in the main body (1), one end of the linkage plate (8) is hinged to the guide shaft (61), and the other end of the linkage plate (8) is provided with a limit groove (81), a linkage shaft (82) installed in the pull arm groove (12) is inserted in the limit groove (81), and a second tension spring (83) is also installed on the main body (1), and the second tension spring (83) is connected to the linkage shaft (82). When the main door hinge (A) is opened to a set angle, the limit groove (81) acts on the linkage shaft (82) to generate an elastic damping effect on the opening of the hinge.

2. The door hinge system with rebound door opening function according to claim 1, characterized in that: The spring (53) is sleeved outside the push spring frame (4), one end of the spring (53) is pressed on the push spring frame (4), and the other end is pressed on the sliding shaft (51).

3. The door hinge system with rebound door opening function according to claim 1, characterized in that: The pulling arm (6) is provided with a clearance groove (62) at positions corresponding to the sliding shaft (51) and the guide wheel (52).

4. The door hinge system with rebound door opening function according to claim 1, characterized in that: The limiting groove (81) is a waist-shaped groove provided on the linkage plate (8).

5. The door hinge system with rebound door opening function according to claim 1, characterized in that: The linkage plates (8) are provided in two pieces, respectively covering the two side ends of the pulling arm (6).

6. The door hinge system with rebound door opening function according to claim 1, characterized in that: The tail of the main body (1) is provided with a plurality of adjustment holes (13), a tension spring shaft (14) is inserted into the mounting hole (41), and the tail of the first tension spring (7) or the second tension spring (83) is connected to the tension spring shaft (14).

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