Hinge structure for doors and windows based on the engagement of a bar

Abstract

The utility model relates to door and window hinge structure technical field, especially is based on the door and window hinge structure of strip tooth engagement technology, including hinge plate, rotating mechanism and door body, the rotating mechanism includes first mounting panel and second mounting panel, be equipped with strip tooth and three supporting blocks between first mounting panel and second mounting panel, two the sliding axle is connected with corresponding first strip hole, second strip hole sliding respectively, be equipped with apron between hinge plate and first mounting panel, first mounting panel is equipped with oil hole, the sealing rubber plug is inserted in the oil hole inner wall, the utility model discloses can hide in the inside of wall body or threshold, switch door not with right side wall body or threshold scratch, can achieve the function of hiding. Through the apron that sets up, can cover first strip hole, avoid the transmission member in this door and window hinge to expose outside, avoid dust to adhere on transmission member.

Description

Technical Field

[0001] This utility model relates to the field of door and window hinge structure technology, and in particular to door and window hinge structure based on strip tooth meshing technology. Background Technology

[0002] Hinges are usually bi-fold, consisting of a pair of metal or non-metal blades connected by a pivot pin. They are components that connect two parts of an object and enable them to move.

[0003] For example, the authorization notice number "CN202767705U" is named a type of door hinge, which is manufactured by simultaneously rolling...

[0004] Adding damping silicone grease inside the shaft ensures noiseless and zero-wear contact between the hinge and the roller, improving product lifespan and vertical load-bearing capacity. However, to achieve a concealed door effect, it is often necessary to hide the door hinges, which cannot be done in this way.

[0005] For example, the authorization announcement number "CN220365450 U" describes a type of door and window hinge. It utilizes a first gear connector and a second gear connector that mesh between a first hinge seat and a second hinge seat. The resulting double-gear transmission mechanism ensures that multiple door and window hinges maintain a uniform opening angle when the door or window is opened, making opening smoother. However, the internal transmission components of this hinge are exposed, making them susceptible to dust accumulation. Dust adheres to the transmission components (first gear connector, first tooth portion, second gear connector, and second tooth portion), thus affecting the normal opening of the door or window. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a door and window hinge structure based on strip tooth meshing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] The design includes a door and window hinge structure based on strip tooth meshing technology, comprising a hinge plate, a rotating mechanism, and a door body. The rotating mechanism includes a first mounting plate and a second mounting plate. A strip tooth and three support blocks are provided between the first and second mounting plates. Connecting blocks are provided on both the upper and lower surfaces of the strip tooth. The strip tooth, the two connecting blocks, the three support blocks, the first mounting plate, and the second mounting plate are fixed to the upper surface of the door body by multiple long bolts. A gear shaft meshes with the right side of the strip tooth. A first strip hole is provided on the surface of the first mounting plate, and a second strip hole is provided on the surface of the second mounting plate. Sliding shafts are provided at both the upper and lower ends of the gear shaft. The two sliding shafts are slidably connected to the corresponding first and second strip holes, respectively. A cover plate is provided between the hinge plate and the first mounting plate. The hinge plate and the cover plate are threadedly connected to the sliding shafts by fixing bolts. The first mounting plate is provided with an oil injection hole, and a sealing plug is inserted into the inner wall of the oil injection hole.

[0009] Preferably, the lower surface of the cover plate is provided with a wear-resistant pad, which is made of polyvinyl chloride.

[0010] Preferably, each of the two connecting blocks has a first protrusion on one side surface facing each other, and the upper and lower surfaces of the strip tooth have a first groove, with the two first protrusions respectively inserted into the corresponding first groove.

[0011] Preferably, each of the two connecting blocks has a second protrusion on one of its opposite sides, and a second groove is formed on the lower surface of the first mounting plate and the upper surface of the second mounting plate, with the two second protrusions respectively inserted into the corresponding second groove.

[0012] Preferably, the upper and lower surfaces of the plurality of support blocks are provided with third protrusions, and the lower surface of the first mounting plate and the upper surface of the second mounting plate are provided with third grooves, and the two third protrusions are respectively inserted into the corresponding third grooves.

[0013] Preferably, the upper sliding shaft is rotatably connected to a first rotating wheel, and the lower sliding shaft is rotatably connected to a second rotating wheel.

[0014] The door and window hinge structure based on strip tooth meshing technology proposed in this utility model has the following advantages: This hinge structure can be concealed inside the wall or threshold, preventing the door from rubbing against the right wall or threshold when opening and closing. The small gap between the door and the right wall or threshold allows the door to function as a concealed door, and the hinge structure itself is not exposed, achieving a hidden function. The cover plate can cover the first strip hole, preventing the transmission components (gear shaft and strip teeth) inside the hinge from being exposed, thus preventing dust from entering and adhering to the transmission components, ensuring normal opening and closing of the door and window. By removing the sealing plug and injecting lubricating oil into the rotating mechanism through the oil injection hole, the gear shaft and strip teeth are lubricated, extending the service life of this hinge structure. Attached Figure Description

[0015] Figure 1 This is a top view of the door in the closed state of this utility model.

[0016] Figure 2 This is a top view of the door of this utility model in the open state.

[0017] Figure 3 This is an exploded view of the structure of this utility model;

[0018] Figure 4 This is a front sectional view of the present invention;

[0019] Figure 5 This is an enlarged view of position A in this utility model;

[0020] Figure 6 This is an enlarged view of position B in this utility model;

[0021] Figure 7 This is an enlarged view of position C of this utility model;

[0022] Figure 8 This is an enlarged view of position D of this utility model.

[0023] In the diagram: 1. Hinge plate; 2. Door body; 3. First mounting plate; 4. Second mounting plate; 5. Strip tooth; 6. Support block; 7. Long bolt; 8. Gear shaft; 9. First strip hole; 10. Second strip hole; 11. Sliding shaft; 12. Cover plate; 13. Fixing bolt; 14. Oil injection hole; 15. Sealing plug; 16. Wear-resistant pad; 17. Connecting block; 18. First protrusion; 19. First groove; 20. Second protrusion; 21. Second groove; 22. Third protrusion; 23. Third groove; 24. First rotating wheel; 25. Second rotating wheel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-8A door and window hinge structure based on strip tooth meshing technology includes a hinge plate 1, a rotating mechanism, and a door body 2. The hinge plate 1 is fixedly connected to the wall or door frame. The rotating mechanism includes a first mounting plate 3 and a second mounting plate 4. A strip tooth 5 and three support blocks 6 are provided between the first mounting plate 3 and the second mounting plate 4. Connecting blocks 17 are provided on both the upper and lower surfaces of the strip tooth 5. The strip tooth 5, the two connecting blocks 17, the three support blocks 6, the first mounting plate 3, and the second mounting plate 4 are fixed to the upper surface of the door body 2 by multiple long bolts 7. The right side of the strip tooth 5... The meshing transmission includes a gear shaft 8. A first strip hole 9 is provided on the surface of the first mounting plate 3, and a second strip hole 10 is provided on the surface of the second mounting plate 4. Sliding shafts 11 are provided at both the upper and lower ends of the gear shaft 8. The two sliding shafts 11 are slidably connected to the corresponding first strip hole 9 and second strip hole 10, respectively. A cover plate 12 is provided between the hinge plate 1 and the first mounting plate 3. The hinge plate 1 and the cover plate 12 are threadedly connected to the sliding shafts 11 by fixing bolts 13. The first mounting plate 3 is provided with an oil injection hole 14, and a sealing rubber plug 15 is inserted into the inner wall of the oil injection hole 14.

[0026] The lower surface of the cover plate 12 is provided with a wear-resistant pad 16. The wear-resistant pad 16 is made of polyvinyl chloride. Polyvinyl chloride has strong wear resistance. By setting the wear-resistant pad 16, the cover plate 12 can be prevented from being worn and the service life of the cover plate 12 can be extended.

[0027] Each of the two connecting blocks 17 has a first protrusion 18 on its facing side surface, and a first groove 19 on both the upper and lower surfaces of the strip tooth 5. The two first protrusions 18 are respectively inserted into the corresponding first grooves 19. Each of the two connecting blocks 17 has a second protrusion 20 on its opposing side surface, and a second groove 21 on both the lower surface of the first mounting plate 3 and the upper surface of the second mounting plate 4. The two second protrusions 20 are respectively inserted into the corresponding second grooves 21. By having the first protrusions 18 extend into the first grooves 19 and the second protrusions 20 extend into the second grooves 21, the upper connecting block 17 can be quickly positioned with the first mounting plate 3 and the strip tooth 5, respectively, while increasing the tightness of the connection between the upper connecting block 17 and the first mounting plate 3 and the strip tooth 5. At the same time, it also facilitates the quick positioning of the lower connecting block 17 with the second mounting plate 4 and the strip tooth 5, while increasing the tightness of the connection between the lower connecting block 17 and the second mounting plate 4 and the strip tooth 5, respectively.

[0028] Each of the upper and lower surfaces of the multiple support blocks 6 is provided with a third protrusion 22, and the lower surface of the first mounting plate 3 and the upper surface of the second mounting plate 4 are provided with a third groove 23. The two third protrusions 22 are respectively inserted into the corresponding third grooves 23. By having the third protrusions 22 extend into the third grooves 23, it is easy to quickly position the support blocks 6 with the first mounting plate 3 and the second mounting plate 4, and at the same time increase the tightness of the connection between the support blocks 6 and the first mounting plate 3 and the second mounting plate 4.

[0029] The upper sliding shaft 11 is rotatably connected to a first rotating wheel 24, and the lower sliding shaft 11 is rotatably connected to a second rotating wheel 25. The first rotating wheel 24 can roll within the first slotted hole 9 to reduce friction, and the second rotating wheel 25 can roll within the second slotted hole 10 to reduce friction.

[0030] Working principle: During the opening process, the door body 2 rotates around the gear shaft 8, rotating counterclockwise relative to the wall or door frame. Simultaneously, the meshing point between the strip tooth 5 and the gear shaft 8 changes continuously, causing the strip tooth 5 to move relative to the gear shaft 8. This is a combined motion of relative rotation and movement of the strip tooth 5 relative to the gear shaft 8. The positions of the first mounting plate 3, the second mounting plate 4, and the strip tooth 5 within them are fixed relative to the door body 2 by the connection of the long bolt 7. The position of the gear shaft 8 relative to the wall or door frame is also fixed. Therefore, the first strip hole 9 of the first mounting plate 3 and the second strip hole 10 of the second mounting plate 4 can slide relative to the gear shaft 8. That is, when the door body 2 is closed, the left side of the first strip hole 9 and the second strip hole 10 is closer to the gear shaft 8. Figure 1 As the door 2 rotates, the right sides of the first strip hole 9 and the second strip hole 10 slowly slide closer to the gear shaft 8, as... Figure 2 In summary, this hinge structure can be concealed within a wall or threshold, preventing the door from rubbing against the right-side wall or threshold when opening and closing. The small gap between door 2 and the right-side wall or threshold allows door 2 to function as a concealed door, and the hinge structure itself is not exposed, achieving a hidden function. The cover plate 12 covers the first strip-shaped hole 9, preventing the internal transmission components (gear shaft 8 and rack teeth 5) from being exposed, thus preventing dust from entering and adhering to the transmission components, ensuring normal opening and closing of the door and window. By removing the sealing plug 15 and injecting lubricating oil into the rotating mechanism through the oil injection hole 14, the gear shaft 8 and rack teeth 5 are lubricated, extending the service life of this hinge structure.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A door and window hinge structure based on strip tooth meshing technology, comprising a hinge plate (1), a rotating mechanism, and a door body (2), characterized in that, The rotating mechanism includes a first mounting plate (3) and a second mounting plate (4). A strip tooth (5) and three support blocks (6) are provided between the first mounting plate (3) and the second mounting plate (4). Connecting blocks (17) are provided on both the upper and lower surfaces of the strip tooth (5). The strip tooth (5), the two connecting blocks (17), the three support blocks (6), the first mounting plate (3) and the second mounting plate (4) are fixed to the upper surface of the door body (2) by multiple long bolts (7). A gear shaft (8) meshes with the right side of the strip tooth (5). A first strip hole is opened on the surface of the first mounting plate (3). 9) The second mounting plate (4) has a second strip hole (10) on its surface. The gear shaft (8) has sliding shafts (11) at both ends. The two sliding shafts (11) are slidably connected to the corresponding first strip hole (9) and second strip hole (10). A cover plate (12) is provided between the hinge plate (1) and the first mounting plate (3). The hinge plate (1) and the cover plate (12) are threadedly connected to the sliding shaft (11) by a fixing bolt (13). The first mounting plate (3) has an oil injection hole (14). A sealing plug (15) is inserted into the inner wall of the oil injection hole (14).

2. The door and window hinge structure based on strip tooth meshing technology according to claim 1, characterized in that, The lower surface of the cover plate (12) is provided with a wear-resistant pad (16), which is made of polyvinyl chloride.

3. The door and window hinge structure based on strip tooth meshing technology according to claim 1, characterized in that, The two connecting blocks (17) are provided with a first protrusion (18) on one side of their opposing surfaces. The upper and lower surfaces of the strip tooth (5) are provided with a first groove (19). The two first protrusions (18) are respectively inserted into the corresponding first grooves (19).

4. The door and window hinge structure based on strip tooth meshing technology according to claim 1, characterized in that, The two connecting blocks (17) are provided with a second protrusion (20) on the opposite side surface. The lower surface of the first mounting plate (3) and the upper surface of the second mounting plate (4) are provided with a second groove (21). The two second protrusions (20) are respectively inserted into the corresponding second grooves (21).

5. The door and window hinge structure based on strip tooth meshing technology according to claim 1, characterized in that, Each of the support blocks (6) has a third protrusion (22) on its upper and lower surfaces. The lower surface of the first mounting plate (3) and the upper surface of the second mounting plate (4) are provided with a third groove (23). The two third protrusions (22) are respectively inserted into the corresponding third grooves (23).

6. The door and window hinge structure based on strip tooth meshing technology according to claim 1, characterized in that, The upper sliding shaft (11) is rotatably connected to a first rotating wheel (24), and the lower sliding shaft (11) is rotatably connected to a second rotating wheel (25).

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