Three-dimensional adjustable automatic door closing hinge
By designing a three-dimensional adjustable automatic door closing hinge, and utilizing a combination of a rotating cylinder and a liquid chamber, the problem of traditional door hinges being unable to close automatically is solved, achieving stable opening and automatic closing of the door leaf, and providing buffering and noise reduction effects.
Patent Information
- Application Number
- CN202423265984.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional door hinges, which cannot achieve automatic closing, are prone to door movement or detachment during use, and cannot provide effective cushioning or noise reduction.
A three-dimensional adjustable automatic door closing hinge was designed. By setting multiple rotating cylinder seats and liquid chambers in the hinge body, the automatic door closing function is achieved by using the cooperation of buffer solution and return spring.
It enables stable opening and automatic closing of the door, avoids impact damage, provides cushioning and noise reduction, and allows for adjustable closing speed.
Smart Images
Figure CN223647604U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge technology, and in particular to a three-dimensional adjustable automatic door closing hinge. Background Technology
[0002] Door hinges are used to fix the door leaf to the door frame and have the functions of opening and closing. They provide a buffer when the door leaf is closed, reducing noise and friction, and also ensuring the stability and security of the door, effectively preventing the door leaf from shifting or falling off during use. Traditional door hinges achieve the function of opening and closing the door by simply rotating the upper hinge around the main axis. Springs compensate for the wear of the sliding pair friction surfaces and provide appropriate preload for buffering the opening and closing of the door leaf. However, their structure and function are limited and cannot achieve automatic door closing. Utility Model Content
[0003] To address the aforementioned problems, this invention proposes a three-dimensional adjustable automatic door closing hinge, which more accurately solves the problems described above.
[0004] This utility model is achieved through the following technical solution:
[0005] This utility model proposes a three-dimensional adjustable automatic door closing hinge, including a hinge body. The hinge body includes a first rotating cylinder seat, a second rotating cylinder seat, and a third rotating cylinder seat. A second mounting plate is integrally formed on one side of the first rotating cylinder seat, and a first mounting plate is integrally formed on one side of the second and third rotating cylinder seats. The second, first, and third rotating cylinder seats are connected by a mating and inserting shaft core. A cylinder seat top cover for assembling and removing the shaft core is connected to the top of the second rotating cylinder seat. A first liquid chamber is provided inside the second rotating cylinder seat, and a second liquid chamber is provided inside the third rotating cylinder seat. Both the first and second liquid chambers are filled with buffer solution. The shaft core has a slow-release channel inside. The upper and lower ends of the shaft core have liquid holes that communicate with the slow-release channel. The liquid hole at the upper end of the shaft core communicates with the first liquid chamber, and the liquid hole at the lower end of the shaft core communicates with the second liquid chamber. A first pressure block is slidably connected in the cavity of the first liquid chamber. A first return spring is provided between the bottom of the cylinder top cover and the first pressure block. Two spiral guide strips are integrally formed on the inner wall of the first liquid chamber. Two spiral guide grooves that cooperate with and slide in the outer wall of the first pressure block are provided.
[0006] Furthermore, a pair of limiting screws are screwed along the outer wall of the first rotating cylinder seat, and a limiting hole is opened on the outer wall of the middle part of the shaft core at the position corresponding to the limiting screw, and the inner end of the limiting screw is inserted into the limiting hole opened on the shaft core.
[0007] Furthermore, the first pressure block is slidably connected to the upper part of the shaft core, the upper outer wall of the shaft core is integrally formed with a sliding key, and the middle part of the first pressure block is provided with a sliding key groove that is slidably connected with the sliding key.
[0008] Furthermore, a third liquid chamber is provided inside the third rotating cylinder seat. The top of the third liquid chamber is connected to the bottom of the second liquid chamber through a liquid channel. A second pressure block and a third pressure block are slidably connected in the inner cavity of the third liquid chamber, and a second return spring is provided between the second pressure block and the third pressure block.
[0009] Furthermore, a liquid adjusting bolt is screwed along the bottom of the third rotating cylinder seat, and the inner end of the liquid adjusting bolt abuts against the bottom of the third pressure block.
[0010] Furthermore, the second and third rotating cylinder seats are provided with nylon sealing rings at the insertion points of the shaft core, and the nylon sealing rings are in close contact with the outer wall of the shaft core.
[0011] The beneficial effects of this utility model are:
[0012] 1. When the door is opened, the second and third rotating cylinder seats deviate from the first rotating cylinder seat in terms of rotation angle. At this time, the shaft core drives the first pressure block and the first liquid chamber to rotate under the action of the sliding key. Under the guidance of the spiral guide groove on the outer wall of the first pressure block and the spiral guide strip on the inner wall of the first liquid chamber, the first pressure block rises and moves, thereby introducing the buffer solution in the inner cavity of the first liquid chamber into the second liquid chamber through the slow liquid channel inside the shaft core. During the opening process, the buffer solution flows and moves, which can keep the door opening stable and avoid the door being damaged by impact due to opening too fast.
[0013] 2. When the force applied to the door is released, the buffer solution inside the second liquid chamber is compressed when the door is opened, and the first liquid block moves downward under the action of the first reset spring inside the first liquid chamber, thereby driving the rotation angle of the first rotating cylinder seat, the second rotating cylinder seat, and the third rotating cylinder seat to reset, thus realizing the automatic door closing function.
[0014] 3. This utility model has a third liquid chamber inside the third rotating cylinder seat that communicates with the second liquid chamber. A second pressure block and a third pressure block are slidably connected inside the third liquid chamber, and a second return spring is provided between the second and third pressure blocks. The second return spring is compressed when the buffer solution is pressed into the second liquid chamber to store the buffer solution exported from the first liquid chamber. When the door is closed, the second return spring is reset, which helps to press the buffer solution in the second and third liquid chambers back into the first liquid chamber and assists in closing the door. Furthermore, by rotating the adjusting bolt, the adjusting bolt presses against the third pressure block, thereby changing the upper limit of the buffer solution pressure in the third liquid chamber and thus changing the closing speed. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0016] Figure 2 This is a first partial sectional view of the three-dimensional structure of this utility model;
[0017] Figure 3 This is a second partial sectional view of the three-dimensional structure of this utility model;
[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0019] Figure 5 This is a front sectional view of the structure of this utility model.
[0020] In the diagram: 1. Hinge body; 101. First rotating cylinder seat; 102. Second rotating cylinder seat; 1021. First liquid chamber; 1022. First pressure block; 1023. First return spring; 1024. Spiral guide slide; 1025. Spiral guide groove; 103. Third rotating cylinder seat; 1031. Second liquid chamber; 1032. Third liquid chamber; 1033. Liquid channel; 1034. Second pressure block; 1035. Third pressure block; 1036. Second return spring; 1037. Adjusting bolt; 104. Shaft core; 1041. Limiting screw; 1042. Slow liquid channel; 1043. Liquid hole; 1044. Slide key; 105. First mounting plate; 106. Second mounting plate; 107. Cylinder seat top cover; 108. Nylon sealing ring. Detailed Implementation
[0021] 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.
[0022] Example 1
[0023] A three-dimensional adjustable automatic door closing hinge, comprising a hinge body 1, combined with... Figure 1 and Figure 2As shown, the hinge body 1 includes a first rotating cylinder seat 101, a second rotating cylinder seat 102, and a third rotating cylinder seat 103. A second mounting plate 106 is integrally formed on one side of the first rotating cylinder seat 101, which is used to connect to the door frame. A first mounting plate 105 is integrally formed on one side of the second rotating cylinder seat 102 and the third rotating cylinder seat 103, which is used to connect to the door leaf. The second rotating cylinder seat 102, the first rotating cylinder seat 101, and the third rotating cylinder seat 103 are connected in the middle by a mating and inserting shaft core 104. A cylinder seat top cover 107 for assembling and removing the shaft core 104 is connected to the top of the second rotating cylinder seat 102, thereby forming a traditional door leaf hinge structure.
[0024] Combination Figure 2 , Figure 3 and Figure 4As shown, the second rotating cylinder seat 102 has a first liquid chamber 1021 inside, and the third rotating cylinder seat 103 has a second liquid chamber 1031 inside. Both the first liquid chamber 1021 and the second liquid chamber 1031 are filled with buffer solution. The shaft core 104 has a buffer channel 1042 inside. The upper and lower ends of the shaft core 104 have liquid holes 1043 that communicate with the buffer channel 1042. The liquid hole 1043 at the upper end of the shaft core 104 communicates with the first liquid chamber 1021, and the liquid hole 1043 at the lower end of the shaft core 104 communicates with the second liquid chamber 1031. A first pressure block 1022 is slidably connected in the cavity of the first liquid chamber 1021, and a first return spring 102 is provided between the bottom of the cylinder seat top cover 107 and the first pressure block 1022. 3. Two spiral guide strips 1024 are integrally formed on the inner wall of the first liquid chamber 1021. Two spiral guide grooves 1025 are provided on the outer wall of the first liquid pressing block 1022 to cooperate and slide with the spiral guide strips 1024. A pair of limiting screws 1041 are screwed along the outer wall of the first rotating cylinder seat 101. A limiting hole is provided on the outer wall of the middle part of the shaft core 104 at the position corresponding to the limiting screw 1041. The inner end of the limiting screw 1041 is inserted into the limiting hole provided on the shaft core 104. The first liquid pressing block 1022 is slidably connected to the upper part of the shaft core 104. A sliding key 1044 is integrally formed on the upper outer wall of the shaft core 104. A sliding key groove is provided in the middle part of the first liquid pressing block 1022 to cooperate and slide with the sliding key 1044. When the door is opened, a rotational angle deviation occurs between the second rotating cylinder seat 102, the third rotating cylinder seat 103, and the first rotating cylinder seat 101. At this time, under the action of the sliding key 1044, the shaft core 104 drives the first liquid-pressing block 1022 to rotate relative to the first liquid chamber 1021. Guided by the spiral guide groove 1025 on the outer wall of the first liquid-pressing block 1022 and the spiral guide strip 1024 on the inner wall of the first liquid chamber 1021, the first liquid-pressing block 1022 rises, thereby pushing the buffer solution inside the first liquid chamber 1021 through the shaft core 104. The buffer solution 1042 is introduced into the second liquid chamber 1031. During the opening process, the buffer solution flows and keeps the door stable, avoiding damage caused by the door opening too fast. When the force on the door is released, the buffer solution inside the second liquid chamber 1031 is compressed during the opening process. Under the action of the first reset spring 1023 inside the first liquid chamber 1021, the first pressure block 1022 moves downward, thereby driving the rotation angle of the first rotating cylinder seat 101, the second rotating cylinder seat 102, and the third rotating cylinder seat 103 to reset, thus realizing the automatic door closing function.
[0025] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: When the door is opened, the second rotating cylinder seat 102, the third rotating cylinder seat 103 and the first rotating cylinder seat 101 have a rotational angle deviation. At this time, the shaft core 104 drives the first pressure block 1022 and the first liquid chamber 1021 to have a rotational deviation under the action of the slide key 1044. Under the guidance of the spiral guide groove 1025 on the outer wall of the first pressure block 1022 and the spiral guide strip 1024 on the inner wall of the first liquid chamber 1021, the first pressure block 1022 rises and runs, thereby introducing the buffer solution in the cavity of the first liquid chamber 1021 into the second liquid chamber 1031 through the slow liquid channel 1042 inside the shaft core 104. During the opening process, the buffer solution flows and runs, which can keep the door opening stable and avoid the door being damaged by impact due to opening too fast.
[0026] When the force applied to the door is released, the buffer solution inside the second liquid chamber 1031 is compressed when the door is opened, and under the action of the first reset spring 1023 inside the first liquid chamber 1021, the first pressure block 1022 moves downward, thereby driving the rotation angle of the first rotating cylinder seat 101, the second rotating cylinder seat 102, and the third rotating cylinder seat 103 to reset, thus realizing the automatic door closing function.
[0027] Example 2
[0028] Combination Figure 3 and Figure 5 As shown, a third liquid chamber 1032 is provided inside the third rotating cylinder 103. The top of the third liquid chamber 1032 is connected to the bottom of the second liquid chamber 1031 through a liquid channel 1033. A second liquid-pressing block 1034 and a third liquid-pressing block 1035 are slidably connected inside the third liquid chamber 1032. A second return spring 1036 is provided between the second liquid-pressing block 1034 and the third liquid-pressing block 1035. The second return spring 1036 is compressed when the buffer solution is pressed into the second liquid chamber 1031 to store the buffer solution discharged from the first liquid chamber 1021. When the door is closed, the second return spring 1036 is reset, assisting in the connection between the second liquid chamber 1031 and the third liquid chamber 1021. The buffer solution in chamber 032 is re-pressed into the first liquid chamber 1021 to assist in closing the door. A liquid adjustment bolt 1037 is screwed along the bottom of the third rotating cylinder seat 103, and the inner end of the liquid adjustment bolt 1037 abuts against the bottom of the third pressure block 1035. The second rotating cylinder seat 102 and the third rotating cylinder seat 103 are provided with nylon sealing rings 108 at the intersection of the shaft core 104, and the nylon sealing rings 108 are in close contact with the outer wall of the shaft core 104. By rotating the liquid adjustment bolt 1037, the liquid adjustment bolt 1037 presses against the third pressure block 1035, thereby changing the upper limit of the buffer solution pressure in the third liquid chamber 1032, and thus changing the closing speed.
[0029] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: The present invention provides a third liquid chamber 1032 connected to the second liquid chamber 1031 inside the third rotating cylinder seat 103. A second liquid-pressing block 1034 and a third liquid-pressing block 1035 are slidably connected within the third liquid chamber 1032. A second return spring 1036 is provided between the second liquid-pressing block 1034 and the third liquid-pressing block 1035. The second return spring 1036 presses the buffer solution into the second liquid chamber. The buffer solution inside 1031 is compressed to store the buffer solution exported from the first liquid chamber 1021. When the door is closed, the second reset spring 1036 resets, assisting in pressing the buffer solution in the second liquid chamber 1031 and the third liquid chamber 1032 back into the first liquid chamber 1021, thus assisting in closing the door. Furthermore, by rotating the adjusting bolt 1037, the adjusting bolt 1037 presses against the third pressure block 1035, thereby changing the upper limit of the buffer solution pressure in the third liquid chamber 1032, and thus changing the closing speed.
[0030] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.
Claims
1. A three-dimensional adjustable automatic door closing hinge, comprising a hinge body (1), characterized in that, The hinge body (1) includes a first rotating cylinder seat (101), a second rotating cylinder seat (102), and a third rotating cylinder seat (103). A second mounting plate (106) is integrally formed on one side of the first rotating cylinder seat (101), and a first mounting plate (105) is integrally formed on one side of the second rotating cylinder seat (102) and the third rotating cylinder seat (103). The second rotating cylinder seat (102), the first rotating cylinder seat (101), and the third rotating cylinder seat (103) are connected by a mating insert shaft core (104). A cylinder seat top cover (107) for assembling and removing the shaft core (104) is connected to the top of the second rotating cylinder seat (102). A first liquid chamber (1021) is provided inside the second rotating cylinder seat (102), and a second liquid chamber (1031) is provided inside the third rotating cylinder seat (103). Both the first liquid chamber (1021) and the second liquid chamber (1031) are filled with buffer solution. The shaft core (104) has a slow-flow channel (1042) inside. Liquid holes (1043) communicating with the slow-flow channel (1042) are opened at both the upper and lower ends of the shaft core (104). The liquid hole (1043) at the upper end of the shaft core (104) communicates with the first liquid chamber (1021), and the liquid hole (1043) at the lower end of the shaft core (104) communicates with the second liquid chamber (1031). The first liquid chamber (1021) contains... A first liquid-pressing block (1022) is slidably connected to the first liquid-pressing block (1022), and a first return spring (1023) is provided between the bottom of the cylinder top cover (107) and the first liquid-pressing block (1022). Two spiral guide strips (1024) are integrally formed on the inner wall of the first liquid chamber (1021), and two spiral guide grooves (1025) are provided on the outer wall of the first liquid-pressing block (1022) to cooperate with and slide in contact with the spiral guide strips (1024).
2. The three-dimensional adjustable automatic door closing hinge according to claim 1, characterized in that, A pair of limiting screws (1041) are screwed along the outer wall of the first rotating cylinder seat (101). A limiting hole is opened on the outer wall of the middle part of the shaft core (104) at the position corresponding to the limiting screws (1041), and the inner end of the limiting screws (1041) is inserted into the limiting hole opened in the shaft core (104).
3. The three-dimensional adjustable automatic door closing hinge according to claim 1, characterized in that, The first pressure block (1022) is slidably connected to the upper part of the shaft core (104). The upper outer wall of the shaft core (104) is integrally formed with a sliding key (1044). The middle part of the first pressure block (1022) is provided with a sliding key groove that is slidably connected to the sliding key (1044).
4. The three-dimensional adjustable automatic door closing hinge according to claim 1, characterized in that, The third rotating cylinder seat (103) has a third liquid chamber (1032) inside. The top of the third liquid chamber (1032) is connected to the bottom of the second liquid chamber (1031) through a liquid channel (1033). The third liquid chamber (1032) has a second liquid block (1034) and a third liquid block (1035) slidably connected in the inner cavity of the third liquid chamber (1032). A second return spring (1036) is provided between the second liquid block (1034) and the third liquid block (1035).
5. A three-dimensional adjustable automatic door closing hinge according to claim 4, characterized in that, A liquid adjusting bolt (1037) is screwed along the bottom of the third rotating cylinder seat (103), and the inner end of the liquid adjusting bolt (1037) abuts against the bottom of the third pressure block (1035).
6. A three-dimensional adjustable automatic door closing hinge according to claim 1, characterized in that, The second rotating cylinder seat (102) and the third rotating cylinder seat (103) are provided with nylon sealing rings (108) at the insertion points of the shaft core (104), and the nylon sealing rings (108) are in close contact with the outer wall of the shaft core (104).