Primary-secondary hinge with reinforcing ribs

Abstract

The utility model relates to the technical field of primary and secondary hinges, and discloses a primary and secondary hinge with reinforcing ribs, which comprises a main hinge sheet, a main shaft is rotatably connected in the main hinge sheet, an auxiliary hinge sheet is rotatably connected on the outer wall of the main shaft, and first fixing teeth which are symmetrical left and right are rotatably connected in the main shaft. The outer wall of the first fixing tooth is slidably connected with a first fixing ring, the outer wall of the first fixing tooth on the right side is fixedly connected with a limiting block, a first spring is arranged in the main shaft, second fixing teeth which are symmetrical left and right are arranged in the main shaft, and a sleeve rod is fixedly connected in the second fixing tooth on the left side. According to the utility model, the tail cover is pressed to drive the second fixing teeth to be buckled with the first fixing teeth, then the top cover is rotated to drive the sleeve rod to rotate on the surface of the insertion rod, and due to the limitation of the second fixing teeth and the first fixing teeth, the sleeve rod and the insertion rod can be mutually unscrewed; the problem that most of existing primary and secondary hinges cannot be detached and combined independently is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of parent-child hinges, in particular to a parent-child hinge with reinforcing ribs. Background Art

[0002] The mother-and-child hinge is a hinge installed on interior doors. The mother-and-child hinge is a figurative name. The reason why it was called this at the time was because of the special structure of this hinge, which consists of two pieces, inside and outside, just like a mother and a child, which is very figurative, so it is called a mother-and-child hinge.

[0003] A Chinese patent document with the search announcement number CN208024156U discloses a sub-hinge, including a first leaf and a second leaf, the first leaf and the second leaf are installed on the same core shaft via a shaft sleeve, the first leaf surrounds the second leaf or the first leaf and the second leaf are arranged up and down, and the thickness of the first leaf and the second leaf decreases from one end close to the core shaft to the end away from the core shaft. The hinge has an adjustment function, and even for a door frame with a skewed side, the door leaf can be completely closed with the door frame, which brings convenience to use. However, in this solution, the sub-leaf and the main leaf are an integrated structure, and the two leaves cannot be disassembled separately, so when the sub-hinge is damaged, it is not convenient to repair the hinge. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a parent-child hinge with reinforcing ribs, aiming to improve the problem that most of the existing parent-child hinges are of one-piece design and the parent-child leaf pieces cannot be disassembled and assembled separately.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mother-and-child hinge with reinforcing ribs, comprising a main sheet, a main sheet rotatably connected to the interior of the main sheet, a secondary sheet rotatably connected to the outer wall of the main sheet, a left-right symmetrical first fixed tooth rotatably connected to the interior of the main sheet, a first fixed ring slidably connected to the outer wall of the first fixed tooth, a limited block fixedly connected to the outer wall of the first fixed tooth on the right side, a first spring is arranged inside the main sheet, a left-right symmetrical second fixed tooth is arranged inside the main sheet, a sleeve rod is fixedly connected to the interior of the second fixed tooth on the left side, and a plug rod is fixedly connected to the interior of the second fixed tooth on the right side, the outer wall of the plug rod is threadedly connected to the interior of the sleeve rod, the sleeve rod and the outer wall of the plug rod are both rotatably connected to the second fixed ring, a second spring is arranged inside the main sheet, a top cover is fixedly connected to the outer wall of the sleeve rod, a tail cover is slidably connected to the outer wall of the plug rod, the outer wall of the top cover is threadedly connected to the interior of the main sheet, the outer wall of the tail cover is slidably connected to the interior of the main sheet, and a positioning component is arranged on the lower surface of the main sheet.

[0006] Furthermore, the positioning assembly includes a positioning rod, and an outer wall of the positioning rod is fixedly connected to the lower surface of the main sheet.

[0007] Furthermore, both ends of the first spring are fixedly connected to the outer wall of the first fixing ring, and both ends of the second spring are fixedly connected to the outer wall of the second fixing ring.

[0008] Furthermore, mounting holes are provided inside the main page and the auxiliary page.

[0009] Furthermore, the main page and the auxiliary page are both threadedly connected with mounting bolts, and the top of the outer wall of the mounting bolt is fixedly connected with a knob.

[0010] Furthermore, the outer wall of the mounting bolt is rotatably connected with a fixing sleeve, the outer wall of the fixing sleeve is fixedly connected to the lower surface of the main page, and the outer wall of the fixing sleeve is fixedly connected to the lower surface of the auxiliary page.

[0011] Furthermore, a push plate is slidably connected inside the fixing sleeve, and an outer wall of the mounting bolt is threadedly connected inside the push plate.

[0012] Furthermore, a third spring is arranged inside the fixing sleeve, one end of the third spring is fixedly connected to the inside of the fixing sleeve, and the other end of the third spring is fixedly connected to the lower surface of the push plate.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the second fixed tooth is driven to be interlocked with the first fixed tooth by pressing the tail cover, and then the top cover is rotated to drive the sleeve rod to rotate on the surface of the insertion rod. Due to the restriction of the second fixed tooth and the first fixed tooth, the sleeve rod and the insertion rod can be unscrewed from each other, so as to achieve the effect of individually disassembling the parent-child hinges, which solves the problem that most of the existing parent-child hinges are of one-piece design and the parent-child leaf pieces cannot be disassembled and assembled individually, thereby improving the practicality of the parent-child hinges and ensuring the safety of the parent-child hinges.

[0015] 2. In the utility model, the push plate is driven to rotate by installing bolts, and the third spring is continuously compressed so that the third spring can push back the installing bolts, thereby achieving the effect of stably installing the parent-child hinge, solving the problem that most of the existing parent-child hinges are directly installed by bolts, which is prone to shaking, improving the stability of the parent-child hinge and extending the service life of the letter hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a parent-child hinge with reinforcing ribs proposed by the utility model;

[0017] Figure 2This is a schematic diagram of the main shaft structure of a hinge with reinforcing ribs proposed by the utility model;

[0018] Figure 3 The utility model is provided with a cross-sectional view of the internal structure of a fixing sleeve of a hinge with reinforcing ribs.

[0019] Legend:

[0020] 1. Home page; 2. Second page; 3. Main shaft; 4. First fixed tooth; 5. First fixed ring; 6. First spring; 7. Second fixed tooth; 8. Second fixed ring; 9. Second spring; 10. Sleeve rod; 11. Top cover; 12. Insert rod; 13. Tail cover; 14. Positioning rod; 15. Mounting hole; 16. Mounting bolt; 17. Knob; 18. Fixed sleeve; 19. Push plate; 20. Third spring; 21. Limit block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a mother-and-child hinge with reinforcing ribs, comprising a main sheet 1, a main shaft 3 is rotatably connected inside the main sheet 1, a secondary sheet 2 is rotatably connected to the outer wall of the main shaft 3, a left-right symmetrical first fixed tooth 4 is rotatably connected inside the main shaft 3, a first fixed ring 5 is slidably connected to the outer wall of the first fixed tooth 4, a limiting block 21 is fixedly connected to the outer wall of the right first fixed tooth 4, a first spring 6 is arranged inside the main shaft 3, a left-right symmetrical second fixed tooth 7 is arranged inside the main shaft 3, and a left-right symmetrical second fixed tooth 7 is arranged on the left side. A sleeve rod 10 is fixedly connected inside, an insertion rod 12 is fixedly connected inside the second fixed tooth 7 on the right side, the outer wall of the insertion rod 12 is threadedly connected inside the sleeve rod 10, and the outer walls of the sleeve rod 10 and the insertion rod 12 are rotatably connected with a second fixing ring 8, a second spring 9 is arranged inside the main shaft 3, a top cover 11 is fixedly connected to the outer wall of the sleeve rod 10, a tail cover 13 is slidably connected to the outer wall of the insertion rod 12, the outer wall of the top cover 11 is threadedly connected inside the main shaft 3, and the outer wall of the tail cover 13 is slidably connected inside the main shaft 3, and a positioning component is arranged on the lower surface of the main plate 1;

[0023] Specifically, when the hinge needs to be disassembled, the tail cover 13 is pressed. At this time, the second fixing ring 8 and the second spring 9 on the right side will push the second fixing tooth 7 to engage with the first fixing tooth 4. Subsequently, the sleeve rod 10 is driven to rotate on the outer wall of the insertion rod 12 by rotating the top cover 11. Since the limiting block 21 of the first fixing tooth 4 is fixed inside the main shaft 3 and cannot rotate, it limits the movement range of the second fixing tooth 7, so that the insertion rod 12 can be rotated out from the inside of the sleeve rod 10. During this process, when the second fixing tooth 7 slides outward, the first spring 6 will push the first fixing ring 5 to keep the first fixing tooth 4 and the second fixing tooth 7 in close fit. In this way, the separate disassembly of the parent-child hinge is realized, which not only improves the practicability of the parent-child hinge, but also ensures its safe use. The hinge can be disassembled quickly and reliably, making maintenance and replacement work more convenient.

[0024] Reference Figure 1 and Figure 3 The positioning assembly includes a positioning rod 14, the outer wall of which is fixedly connected to the lower surface of the main page 1; both ends of the first spring 6 are fixedly connected to the outer wall of the first fixing ring 5, and both ends of the second spring 9 are fixedly connected to the outer wall of the second fixing ring 8; mounting holes 15 are provided inside the main page 1 and the auxiliary page 2; the main page 1 and the auxiliary page 2 are both threadedly connected with mounting bolts 16, and the top of the outer wall of the mounting bolt 16 is fixedly connected with a knob 17; the outer wall of the mounting bolt 16 is rotatably connected with a fixing sleeve 18, the outer wall of the fixing sleeve 18 is fixedly connected to the lower surface of the main page 1, and the outer wall of the fixing sleeve 18 is fixedly connected to the lower surface of the auxiliary page 2; a push plate 19 is slidably connected inside the fixing sleeve 18, and the outer wall of the mounting bolt 16 is threadedly connected to the inside of the push plate 19; a third spring 20 is arranged inside the fixing sleeve 18, one end of the third spring 20 is fixedly connected to the inside of the fixing sleeve 18, and the other end of the third spring 20 is fixedly connected to the lower surface of the push plate 19;

[0025] Specifically, when the hinge needs to be installed firmly, the main page 1 and the auxiliary page 2 are fixed to the mounting plate by turning the knob 17. At the same time, the mounting bolt 16 will drive the push plate 19 to slide inside the fixing sleeve 18 while rotating, which will compress the third spring 20. When the mounting bolt 16 is completely rotated into the mounting plate, the third spring 20 will rebound quickly and push the push plate 19. In this way, the push plate 19 will increase the friction between the mounting bolt 16 and it, which ensures the firm installation of the parent-child hinge. By increasing the friction, the hinge can be effectively prevented from loosening during use, thereby improving the stability of the parent-child hinge and extending its service life, effectively ensuring the function and performance of the hinge.

[0026] Working principle: when the hinge needs to be disassembled, the tail cover 13 is pressed to drive the second fixing ring 8 and the second spring 9 on the right side to push the second fixing tooth 7, so that the second fixing tooth 7 can be buckled with the first fixing tooth 4, and then the top cover 11 is rotated to drive the sleeve rod 10 to rotate on the outer wall of the insertion rod 12. Since the first fixing tooth 4 is fixed by the limit block 21 and restricted inside the main shaft 3 and cannot rotate, the first fixing tooth 4 can restrict the second fixing tooth 7, so that the insertion rod 12 can be rotated out from the inside of the sleeve rod 10. When the second fixing tooth 7 slides outward, the first spring 6 will push the first fixing ring 5 so that the first fixing tooth 4 can continue to fit on the surface of the second fixing tooth 7. The surface is formed, thereby achieving the effect of separately disassembling the parent-child hinges, improving the practicability of the parent-child hinges, and ensuring the safe use of the parent-child hinges. When the hinges need to be firmly installed, the main page 1 and the auxiliary page 2 are fixed to the mounting plate by turning the knob 17. At the same time, the mounting bolt 16 drives the push plate 19 to slide inside the fixing sleeve 18 while rotating, thereby compressing the third spring 20. When the mounting bolt 16 is completely rotated into the mounting plate, the third spring 20 will rebound and push the push plate 19 to increase the friction between the mounting bolt 16 and the push plate 19, thereby achieving the effect of firmly installing the parent-child hinge, improving the stability of the parent-child hinge, and extending the service life of the letter hinge.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hinge with reinforcing ribs, comprising a main hinge (1), characterized in that: The main plate (1) is rotatably connected to a main shaft (3) inside, the outer wall of the main shaft (3) is rotatably connected to a secondary plate (2), the main shaft (3) is rotatably connected to a left-right symmetrical first fixed tooth (4) inside, the outer wall of the first fixed tooth (4) is slidably connected to a first fixed ring (5), the outer wall of the first fixed tooth (4) on the right side is fixedly connected to a limiting block (21), a first spring (6) is arranged inside the main shaft (3), a left-right symmetrical second fixed tooth (7) is arranged inside the main shaft (3), the second fixed tooth (7) on the left side is fixedly connected to a sleeve rod (10), the second fixed tooth (7) on the right side is fixedly connected to a sleeve rod (10), The main shaft (1) is fixedly connected to an insertion rod (12), the outer wall of the insertion rod (12) is threadedly connected to the inside of the sleeve rod (10), the outer walls of the sleeve rod (10) and the insertion rod (12) are both rotatably connected to a second fixing ring (8), a second spring (9) is arranged inside the main shaft (3), the outer wall of the sleeve rod (10) is fixedly connected to a top cover (11), the outer wall of the insertion rod (12) is slidably connected to a tail cover (13), the outer wall of the top cover (11) is threadedly connected to the inside of the main shaft (3), the outer wall of the tail cover (13) is slidably connected to the inside of the main shaft (3), and a positioning component is arranged on the lower surface of the main plate (1).

2. The hinge with reinforcing ribs according to claim 1, characterized in that: The positioning assembly comprises a positioning rod (14), the outer wall of the positioning rod (14) being fixedly connected to the lower surface of the main plate (1).

3. The hinge with reinforcing ribs according to claim 2, characterized in that: Both ends of the first spring (6) are fixedly connected to the outer wall of the first fixing ring (5), and both ends of the second spring (9) are fixedly connected to the outer wall of the second fixing ring (8).

4. The hinge with reinforcing ribs according to claim 3, characterized in that: The main page (1) and the secondary page (2) are both provided with mounting holes (15) therein.

5. The hinge with reinforcing ribs according to claim 4, characterized in that: The main page (1) and the auxiliary page (2) are both threadedly connected with mounting bolts (16) inside, and a knob (17) is fixedly connected to the top of the outer wall of the mounting bolt (16).

6. The hinge with reinforcing ribs according to claim 5, characterized in that: The outer wall of the mounting bolt (16) is rotatably connected to a fixing sleeve (18), the outer wall of the fixing sleeve (18) is fixedly connected to the lower surface of the main page (1), and the outer wall of the fixing sleeve (18) is fixedly connected to the lower surface of the auxiliary page (2).

7. The hinge with reinforcing ribs according to claim 6, characterized in that: A push plate (19) is slidably connected inside the fixing sleeve (18), and an outer wall of the mounting bolt (16) is threadedly connected inside the push plate (19).

8. The hinge with reinforcing ribs according to claim 7, characterized in that: A third spring (20) is arranged inside the fixing sleeve (18), one end of the third spring (20) is fixedly connected to the inside of the fixing sleeve (18), and the other end of the third spring (20) is fixedly connected to the lower surface of the push plate (19).

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