Damping hinge of box body support with anti-closing function

Abstract

The utility model relates to the field of mechanical engineering and structural members, in particular to a damping hinge of a box support with an anti-closing function, which comprises a mounting plate I and the like. The mounting plate I is fixedly mounted on an upper shell of the box body, the mounting plate II is fixedly mounted on a lower shell of the box body, mounting blocks are arranged on the side surface of the lower shell of the box body, the rotating shaft is rotationally mounted on the two mounting blocks, and the rotating shaft penetrates through and is fixedly connected to the mounting plate I. The rotating speed of the upper shell and the lower shell can be slowed down through the magnetic damping effect between the magnetic plate on the rotating shaft and the copper sleeve, the opening and closing process is more stable, it is guaranteed that when the upper shell and the lower shell are opened, the rotating shaft is locked through cooperation of the ratchet wheel and the ratchets, the rotating shaft is prevented from rotating freely to be reset and closed, and the use safety is improved; and the risk of accidental closing is avoided.

Description

Technical Field

[0001] This utility model relates to the fields of mechanical engineering and structural components, and in particular to a damping hinge for a box bracket with anti-lock function. Background Technology

[0002] As people's living standards improve and their demands for home comfort increase, furniture and home appliance designs are paying more and more attention to detail and humanization. Traditional hinges may generate noise or cause impact to items when closed, especially when there are children or elderly people in the family. The emergence of damping hinges is precisely to meet these needs. They not only improve the safety and service life of products, but also increase the convenience and comfort of use.

[0003] Patent publication number CN221194700U discloses an anti-closing hinge for an aluminum box. Its structure includes a box body and a lid for closing the box. The structure also includes two hinge shafts. Two right hinges are integrally formed on the box body, and two left hinges are integrally formed on the lid. The two hinge shafts connect the two left and right hinges in series. This anti-closing hinge restricts the hinge movement of the left and right hinges through the cooperation of a left and right limiting surface, thus preventing the lid from falling directly and closing the box. Although this device can prevent the lid from closing suddenly, it still has shortcomings in practical application. During use, the left and right limiting surfaces need to cooperate to restrict hinge movement. This method always requires precise cooperation of the two locking blocks to work effectively. If one limiting surface malfunctions, it may cause rapid closing in case of accidental disengagement, still posing a safety hazard. Utility Model Content

[0004] In order to overcome the shortcomings of existing anti-closing hinges that rely on the precise matching of the limiting surfaces on both sides to achieve the anti-closing effect, which are cumbersome to operate and prone to single-point failure, this utility model provides a damping hinge for a box bracket with anti-closing function.

[0005] The technical implementation scheme of this utility model is as follows: a damping hinge for a box bracket with anti-closing function, comprising a mounting plate I, a mounting plate II, and a rotating shaft. The mounting plate I is fixedly mounted on the upper shell of the box, and the mounting plate II is fixedly mounted on the lower shell of the box. A mounting block is provided on the side of the lower shell of the box. The rotating shaft is rotatably mounted on the two mounting blocks, wherein the rotating shaft passes through and is fixedly connected to the mounting plate I; it also includes: a copper sleeve, fixedly connected to one end of the mounting plate II near the rotating shaft, the rotating shaft passing through the copper sleeve and rotatably contacting each other; a magnetic plate, disposed at the location of the rotating shaft at the copper sleeve; and a torsion spring I, disposed between the mounting block and the mounting plate I. A torsion spring I is also provided between the mounting block and the mounting plate I, and the torsion spring I is used to reset the rotating shaft; the mounting cylinder I is fixed to the side of the lower housing, and the mounting cylinder I is located at one end of the rotating shaft; the locking assembly is provided inside the mounting cylinder I, and the locking assembly is used to lock the rotating shaft. When the upper housing and the lower housing are rotated open, when the rotating shaft drives the magnetic plate on it to rotate, a magnetic damping effect will be generated between the copper sleeve and the magnetic plate, thereby slowing down the rotation speed of the upper housing and the lower housing. At the same time, the locking assembly locks the rotating shaft, so that the rotating shaft between the mounting plate I and the mounting plate II cannot rotate, thus preventing the upper housing and the lower housing from arbitrarily rotating and resetting to close when in the open state.

[0006] More preferably, the locking assembly includes: a fixing block, fixedly connected to the upper part of the inner wall of the mounting cylinder I; a ratchet, rotatably mounted on the fixing block via a rotating shaft; a ratchet tooth, fixedly sleeved on the rotating shaft, the ratchet and the ratchet tooth being adapted to each other, and the direction in which the ratchet freely rotates on the ratchet tooth is consistent with the direction in which the upper housing rotates open; and a lever, disposed on the ratchet tooth, with a sliding groove formed on the wall of the mounting cylinder I, and the lever located within the sliding groove of the mounting cylinder I.

[0007] More preferably, a torsion spring II is provided on the pivot between the fixing block and the ratchet. The torsion spring II can act on the ratchet, so that the ratchet is always in close contact with the ratchet, thereby improving the stability of the ratchet and ratchet latching and improving the self-locking reliability of the hinge.

[0008] More preferably, it also includes a fixing plate, a mounting cylinder II, and a retaining strip. The fixing plate is fixed to the end of the rotating shaft away from the mounting cylinder I. The fixing plate is circular. The mounting cylinder II is provided on the side of the upper housing away from the mounting cylinder I. The fixing plate is located inside the mounting cylinder II. The retaining teeth are slidably disposed at the diameter position on the side of the fixing plate. One end of the retaining strip has a protruding, offset design. The end of the retaining strip is provided with a rubber block. The retaining strip can contact the inner wall of the mounting cylinder II and decelerate the rotating shaft on the fixing plate, preventing the upper and lower housings from driving the rotating shaft to rotate abnormally.

[0009] More preferably, the curved inner wall of the mounting cylinder II is uniformly provided with spaced grooves. The grooves in the mounting cylinder II further impede the rotation of the upper housing of the rotating shaft by slowing down the rotation speed of the clamping strip and the fixing plate. When the rotating shaft drives the clamping strip to rotate through the fixing plate, if the rotating shaft rotates at an abnormally high speed, the clamping strip can slide to the side of its bias under the centrifugal force of the fixing plate, so that the rubber block at the end of the clamping strip can slide into the groove. This causes the clamping strip on the fixing plate to be subjected to greater resistance from the inner wall of the mounting cylinder II, thereby further slowing down the rotation of the rotating shaft.

[0010] More preferably, the locking teeth are detachably and circumferentially mounted on the curved inner wall of the mounting cylinder II. The locking teeth can be selectively mounted on the curved inner wall of the mounting cylinder II as needed. The locking teeth are used to directly engage the offset locking strip. After the locking teeth are installed in the mounting cylinder II, in the event of an unexpected situation where the magnetic damping between the copper sleeve and the magnetic plate weakens or fails, the offset locking strip will be inserted between the two locking teeth and directly lock the rotating shaft through the fixing plate, so that in the event of an emergency, the mounting plate I and the mounting plate II cannot continue to drive the upper and lower housings to close abnormally.

[0011] The present invention has the following advantages: 1. The present invention can slow down the rotation speed of the upper and lower housings by means of the magnetic damping effect between the magnetic plate on the rotating shaft and the copper sleeve, making the opening and closing process smoother. The ratchet and ratchet teeth ensure that the rotating shaft is locked when the upper and lower housings are opened, preventing it from rotating arbitrarily to reset and close, improving the safety of use and avoiding the risk of accidental closure.

[0012] 2. This utility model uses the groove on the inner wall of the mounting cylinder II to hinder the rotation of the rotating shaft. When the rotating shaft rotates at an abnormally high speed, the locking strip will slide into the groove under the action of centrifugal force, increasing the resistance and thus further slowing down the rotation of the rotating shaft.

[0013] 3. The locking teeth of this utility model can be selectively installed according to the needs of use, providing additional safety protection. After the locking strip is offset, it will be inserted between the two locking teeth to directly lock the rotating shaft and prevent abnormal closing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the mounting plate II, rotating shaft, magnetic plate, and torsion spring I of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the torsion spring I, mounting cylinder I, and ratchet of this utility model.

[0017] Figure 4 for Figure 3Enlarged view of point A in the middle.

[0018] Figure 5 This is a three-dimensional structural diagram of the fixing plate, mounting cylinder II, locking teeth, and locking strip of this utility model.

[0019] The meanings of the reference numerals in the figure are as follows: 1. Upper housing, 2. Lower housing, 21. Mounting block, 3. Mounting plate I, 4. Mounting plate II, 41. Copper sleeve, 5. Rotating shaft, 6. Magnetic plate, 7. Torsion spring I, 8. Mounting cylinder I, 81. Fixing block, 9. Ratchet, 10. Ratchet tooth, 11. Torsion spring II, 12. Lever, 13. Fixing plate, 14. Mounting cylinder II, 15. Clamping tooth, 16. Clamping strip. Detailed Implementation

[0020] 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.

[0021] Example: A damping hinge for a box-type support with anti-closing function, such as... Figures 1-3 As shown, the device includes mounting plate I3, mounting plate II4, and rotating shaft 5. Mounting plate I3 is fixedly mounted on the upper shell 1 of the box, and mounting plate II4 is fixedly mounted on the lower shell 2 of the box. Mounting blocks 21 are provided on the side of the lower shell 2 of the box. The rotating shaft 5 is rotatably mounted on the two mounting blocks 21, and the rotating shaft 5 passes through and is fixedly connected to mounting plate I3. The device also includes: a copper sleeve 41, fixedly connected to the end of mounting plate II4 near the rotating shaft 5, with the rotating shaft 5 passing through the copper sleeve 41 and rotating in contact with it; a magnetic plate 6, located at the location of the rotating shaft 5 on the copper sleeve 41; and a torsion spring I7, located between the mounting blocks 21 and mounting plate I3. A torsion spring I is also provided between the mounting blocks 21 and mounting plate I3. 7. Torsion spring I7 is used to reset the rotating shaft 5; mounting cylinder I8 is fixed to the side of the lower housing 2 and is located at one end of the rotating shaft 5; locking assembly is set inside the mounting cylinder I8. The locking assembly is used to lock the rotating shaft 5. When the upper housing 1 and the lower housing 2 are rotated open, the rotating shaft 5 drives the magnetic plate 6 on it to rotate. The copper sleeve 41 and the magnetic plate 6 will generate magnetic damping effect, thereby slowing down the rotation speed of the upper housing 1 and the lower housing 2. At the same time, the locking assembly locks the rotating shaft 5, so that the rotating shaft 5 between the mounting plate I3 and the mounting plate II4 cannot rotate, thus avoiding the situation where the upper housing 1 and the lower housing 2 rotate arbitrarily to reset and close when in the open state.

[0022] like Figures 2-4As shown, the locking assembly includes: a fixing block 81, fixedly attached to the upper part of the inner wall of the mounting cylinder I 8; a ratchet 9, rotatably mounted on the fixing block 81 via a rotating shaft; a ratchet 10, fixedly sleeved on the rotating shaft 5, the ratchet 9 and the ratchet 10 being compatible, and the direction in which the ratchet 9 rotates freely on the ratchet 10 is consistent with the direction in which the upper housing 1 rotates open; a lever 12, disposed on the ratchet 10, with a groove on the cylinder wall of the mounting cylinder I 8, the lever 12 being located in the groove of the mounting cylinder I 8; a torsion spring II 11 is disposed on the rotating shaft between the fixing block 81 and the ratchet 10, the torsion spring II 11 acting on the ratchet 10, so that the ratchet 10 is always tightly attached to the ratchet 9, improving the stability of the latching fit between the ratchet 9 and the ratchet 10, and improving the self-locking reliability of this hinge.

[0023] like Figure 1 and Figure 5 As shown, it also includes a fixing plate 13, a mounting cylinder II 14, and a retaining strip 16. The fixing plate 13 is fixed to the end of the rotating shaft 5 away from the mounting cylinder I 8. The fixing plate 13 is circular. The mounting cylinder II 14 is located on the side of the upper housing 1 away from the mounting cylinder I 8. The fixing plate 13 is located inside the mounting cylinder II 14. The retaining teeth 15 are slidably disposed at the diameter position on the side of the fixing plate 13. One end of the retaining strip 16 has a protruding offset design. The end of the retaining strip 16 is provided with a rubber block. The retaining strip 16 can contact the inner wall of the mounting cylinder II 14 and decelerate the rotating shaft 5 on the fixing plate 13, preventing the upper housing 1 and the lower housing 2 from rotating. The shaft 5 rotates abnormally; the curved inner wall of the mounting cylinder II 14 is uniformly provided with grooves at intervals. The grooves of the mounting cylinder II 14 further hinder the rotation of the upper housing 1 of the rotating shaft 5 by slowing down the rotation speed of the locking strip 16 and the fixing plate 13. When the rotating shaft 5 drives the locking strip 16 to rotate through the fixing plate 13, when the rotating shaft 5 rotates abnormally at high speed, the locking strip 16 can slide to the side of its bias under the centrifugal force of the fixing plate 13, so that the rubber block at the end of the locking strip 16 can slide into the groove, so that the locking strip 16 on the fixing plate 13 is subjected to greater resistance from the inner wall of the mounting cylinder II 14, thereby further slowing down the rotation of the rotating shaft 5.

[0024] like Figure 5 As shown, a ring of teeth 15 is detachably circumferentially installed on the curved inner wall of the mounting cylinder II 14. The teeth 15 can be selectively installed on the curved inner wall of the mounting cylinder II 14 as needed. The teeth 15 are used to directly engage the offset locking strip 16. After the teeth 15 are installed on the mounting cylinder II 14, if the magnetic damping between the copper sleeve 41 and the magnetic plate 6 is weakened or fails unexpectedly, the locking strip 16 will be inserted between the two teeth 15 after offset, and the rotating shaft 5 will be directly locked by the fixing plate 13, so that in case of an emergency, the mounting plate I 3 and the mounting plate II 4 cannot continue to drive the upper housing 1 and the lower housing 2 to close abnormally.

[0025] When using this damping hinge, when the user manually rotates the upper housing 1 from the lower housing 2 to open it, the upper housing 1 drives the rotating shaft 5 to rotate. The rotating shaft 5 rotates the compression torsion spring I7. At this time, the magnetic plate 6 on the rotating shaft 5 and the copper sleeve 41 on its outer side generate a magnetic damping effect, which slows down the rotation speed of the upper housing 1 and the lower housing 2, making the opening process smoother. As the rotating shaft 5 rotates, the ratchet 10 also rotates. The ratchet 10 is adapted to the ratchet 9. Since the direction of free rotation of the ratchet 9 on the ratchet 10 is... When the upper housing 1 rotates and opens in the same direction, the ratchet 9 will not prevent the ratchet 10 from rotating. When the upper housing 1 and the lower housing 2 are fully open, the rotating shaft 5 stops rotating. With the cooperation of the ratchet 9 and the ratchet 10, the rotating shaft 5 cannot rotate in the opposite direction. Furthermore, the ratchet 10 is always tightly pressed against the ratchet 9 under the action of the torsion spring II 11, improving the reliability of the self-locking mechanism. When abnormal rotation occurs between the upper housing 1 and the lower housing 2, the upper housing 1 will drive the rotating shaft 5 to rotate abnormally at high speed through the mounting plate I 3, causing the locking strip 16 to be fixed in place. Under the centrifugal force of the fixed plate 13, it slides into the groove of the mounting cylinder II 14, increasing resistance and further slowing down the rotation speed of the rotating shaft 5 to prevent abnormal closure. If the magnetic damping between the copper sleeve 41 and the magnetic plate 6 weakens or fails, the user can directly assemble the locking teeth 15 into the mounting cylinder II 14. When the abnormally high-speed rotating shaft 5 drives the fixed plate 13 to rotate, the locking strip 16 slides in the direction of the bias and inserts between the two locking teeth 15, directly locking the rotating shaft 5, thereby urgently stopping the upper housing 1 and the lower housing 2. The high-speed rotation between the upper housing 1 and the lower housing 2 allows the user to disengage the ratchet 10 from the ratchet 9 by moving the lever 12 when it is necessary to close the upper housing 1 and the lower housing 2. Once the ratchet 10 and the ratchet 9 are disengaged, the torsion spring I7 releases the stored energy to drive the rotating shaft 5 to rotate in the opposite direction, causing the upper housing 1 and the lower housing 2 to close slowly. At this time, the slow closing of the rotating shaft 5 will not trigger the locking strip 16 to deviate on the fixed plate 13. During the closing process, the magnetic damping between the magnetic plate 6 and the copper sleeve 41 continues to play a role, ensuring a smooth closing process.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A damping hinge for a box bracket with anti-closing function, comprising mounting plate I (3), mounting plate II (4) and rotating shaft (5), wherein mounting plate I (3) is fixedly mounted on the upper shell (1) of the box, mounting plate II (4) is fixedly mounted on the lower shell (2) of the box, mounting blocks (21) are provided on the side of the lower shell (2), and the rotating shaft (5) is rotatably mounted on the two mounting blocks (21), wherein the rotating shaft (5) passes through and is fixedly connected to the mounting plate I (3); Its characteristics are, It also includes: A copper sleeve (41) is fixed to one end of the mounting plate II (4) near the rotating shaft (5), the rotating shaft (5) passes through the copper sleeve (41) and rotates in contact with it; A magnetic plate (6) is disposed at the location of the rotating shaft (5) on the copper sleeve (41); Torsion spring I (7) is disposed between the mounting block (21) and the mounting plate I (3). Torsion spring I (7) is also disposed between the mounting block (21) and the mounting plate I (3). Torsion spring I (7) is used to rotate the shaft (5) for resetting. Mounting cylinder I (8) is fixed to the side of the lower housing (2), and the mounting cylinder I (8) is located at one end of the rotating shaft (5); A locking component is disposed inside the mounting cylinder I (8), and the locking component is used to lock the rotating shaft (5).

2. A damping hinge for a box-type support with anti-closing function as described in claim 1, characterized in that, The locking component includes: The fixing block (81) is fixed to the upper part of the inner wall of the mounting cylinder I (8); A ratchet (9) is rotatably mounted on the fixed block (81) via a rotating shaft; The ratchet (10) is fixedly sleeved on the rotating shaft (5). The ratchet (9) and the ratchet (10) are adapted to each other, and the direction in which the ratchet (9) rotates freely on the ratchet (10) is consistent with the direction in which the upper housing (1) rotates and opens. A lever (12) is mounted on the ratchet (10). A groove is provided on the wall of the mounting cylinder I (8), and the lever (12) is located in the groove of the mounting cylinder I (8).

3. A damping hinge for a box-type support with anti-closing function according to claim 2, characterized in that, A torsion spring II (11) is provided on the shaft between the fixed block (81) and the ratchet (10).

4. A damping hinge for a box bracket with anti-closing function according to claim 3, characterized in that, It also includes a fixing plate (13), a mounting cylinder II (14), a locking tooth (15), and a locking strip (16). The fixing plate (13) is fixed to the end of the rotating shaft (5) away from the mounting cylinder I (8). The fixing plate (13) is circular. The mounting cylinder II (14) is provided on the side of the upper housing (1) away from the mounting cylinder I (8). The fixing plate (13) is located inside the mounting cylinder II (14). The locking tooth (15) is slidably disposed at the diameter position on the side of the fixing plate (13). One end of the locking strip (16) is a protruding biased design. The end of the locking strip (16) is provided with a rubber block.

5. A damping hinge for a box bracket with anti-closing function according to claim 4, characterized in that, The inner wall of the mounting cylinder II (14) is uniformly provided with grooves at intervals. The grooves of the mounting cylinder II (14) can slow down the rotation speed of the clamping strip (16) and the fixing plate (13).

6. A damping hinge for a box bracket with anti-closing function according to claim 5, characterized in that, The locking teeth (15) are detachably circumferentially mounted on the curved inner wall of the mounting cylinder II (14). The locking teeth (15) can be selectively mounted on the curved inner wall of the mounting cylinder II (14) according to the use needs. The locking teeth (15) are used to directly engage the offset locking strip (16).

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