A two-stage torsion cushion hinge

Abstract

A two-stage torsion buffering hinge, comprising a first hinge part and a second hinge part which are pivotally connected with each other, a transmission member is connected to the first hinge part, and a first force receiving part and a second force receiving part are directly or indirectly connected to the second hinge part; the transmission member is located between the first force receiving part and the second force receiving part; a first elastic member and a second elastic member are respectively arranged between the first force receiving part and the second force receiving part and the transmission member; when the first hinge part and the second hinge part rotate relative to each other, the first elastic member and the second elastic member are driven to elastically deform in sequence or simultaneously through the interaction between the force receiving parts and the transmission member. When the utility model is applied, the position of the first hinge plate can be more stable by adjusting the angle of the first hinge part and making the first hinge plate surface fit, and the connection between the wall surface and the door surface at different positions and different angles can be more convenient and effective.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a two-stage torque buffer hinge. Background Technology

[0002] A hinge, also known as a hinge, is usually composed of a first hinge section and a second hinge section that are pivotally connected to each other. One of the first hinge section and the second hinge section is fixed to the wall, while the other is used to connect to a door or window to enable the door or window to open and close.

[0003] Existing soft-close hinges typically use only one elastic element (such as a single torsion spring or hydraulic rod), which can only provide a fixed or gently varying buffering force throughout the opening and closing process. As the door opens and closes, especially when it is close to the fully open or fully closed position, it is prone to violent impacts, rebounds, or shaking, resulting in noise, damage, and a poor user experience. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a two-stage torque buffer hinge.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A two-section torque-buffered hinge includes a first hinge portion and a second hinge portion pivotally connected to each other. A transmission member is connected to the first hinge portion, and a first force-receiving portion and a second force-receiving portion are directly or indirectly connected to the second hinge portion at intervals. The transmission member is located between the first force-receiving portion and the second force-receiving portion. A first elastic member and a second elastic member are respectively provided between the first force-receiving portion and the second force-receiving portion and the transmission member. When the first hinge portion and the second hinge portion rotate relative to each other, the interaction between the force-receiving portion and the transmission member drives the first elastic member and the second elastic member to undergo elastic deformation sequentially or simultaneously.

[0007] Furthermore, the first force-bearing part is a self-tightening adjustment device, which includes a base connected to the second hinge part. An adjustment member is inserted into the lower part of the base. The bottom of the adjustment member is connected to the first elastic member, and an adjustment groove is provided on its top. A first inclined adjustment protrusion extends from the outer peripheral surface of the adjustment member toward the base in the axial direction. A second inclined adjustment protrusion that matches the first inclined adjustment protrusion is provided below the base.

[0008] Furthermore, the second force-bearing part is a fixing member, the fixing member is provided with a receiving groove, the receiving groove is provided with a limiting protrusion, the first end of the transmission member is provided with a first slot, the second end of the transmission member is provided with a second slot, the adjusting member is provided with a third slot, the two ends of the first elastic member are respectively engaged in the second slot and the third slot, the first end of the second elastic member is engaged in the first slot, and the second end abuts against the limiting protrusion.

[0009] Furthermore, the first hinge portion includes a first hinge plate and a first base attached to the first hinge plate, and the second hinge portion includes a second hinge plate and a second base attached to the second hinge plate. The first hinge plate is provided with a first pivot block, and the second hinge plate is provided with a second pivot block. The first pivot block and the second pivot block are pivotally connected to each other so that the first hinge plate and the second hinge plate can rotate relative to each other.

[0010] Furthermore, the first pivot block and the second pivot block are provided with coaxial through holes, and the first force-receiving part, the second force-receiving part and the transmission component are installed in the through holes.

[0011] Furthermore, the second hinge plate is provided with a first mounting groove, and the second base is provided with an opening communicating with the first mounting groove, and a buffer device is provided in the first mounting groove; the first hinge plate is provided with an abutment portion, and when the first hinge plate is closed, the abutment portion abuts against the buffer device through the opening.

[0012] Furthermore, the buffer device includes a reset device, which is fitted with a sliding seat. The sliding seat is provided with a first guide wheel, which is used to abut against the abutment portion.

[0013] Furthermore, the abutting part abuts against one side of the first guide wheel, which is a guide slope.

[0014] Furthermore, the sliding seat is also provided with a second guide wheel, which rolls against the side wall of the first mounting groove.

[0015] Furthermore, the first mounting groove is provided with a first guide groove and a second guide groove along the movement direction of the sliding seat, the sliding seat is provided with a guide protrusion, the second guide wheel is adapted to the first guide groove, and the guide protrusion is adapted to the second guide groove.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model proposes a two-stage torque-buffered hinge. By setting elastic buffer components on two independent force-bearing parts, a two-stage buffer mechanism is constructed. When the hinge parts rotate relative to each other, the two elastic components can be driven sequentially or simultaneously, thereby providing differentiated buffer torques at different opening and closing angles. This achieves a smooth transition effect with relatively light start-up and significantly enhanced buffer force in the middle and later stages. It effectively avoids the linear torque change of traditional single-torsion-spring hinges throughout the entire movement, which cannot balance the contradiction between easy opening and proper buffering. This greatly improves the sense of sophistication, safety, and user experience of opening and closing equipment (such as furniture and appliance doors).

[0018] 2. The present invention proposes a two-stage torque buffer hinge, which realizes stepless or segmented adjustment of the preload of the first elastic element by setting a self-tightening adjustment device with mutually cooperating inclined protrusions. The buffering force of the hinge can be precisely adjusted according to actual needs during production assembly or after-sales service to meet the personalized needs of different application scenarios.

[0019] 3. This utility model proposes a two-section torque-buffered hinge, employing a connection method combining a first slot, a second slot, and a limiting protrusion. This provides a fixing and force transmission path for the elastic elements, ensuring that the force is efficiently and smoothly transmitted to the two elastic elements during hinge rotation. This makes their deformation controllable and consistent, avoiding problems such as abnormal noise, energy loss, and unstable buffering caused by loose or misaligned connection points. Simultaneously, this modular connection design simplifies the assembly process and improves production efficiency and product consistency.

[0020] 4. The present invention proposes a two-stage torque buffer hinge, which uses a buffer device to slow down the closing speed of the first hinge part. The buffer device includes a first guide wheel and a second guide wheel. When the hinge device is closed, the guide slope of the abutment part abuts against the first guide wheel, and the second guide wheel abuts against the second hinge plate. The friction between the abutment part and the buffer device, as well as between the buffer device and the second hinge plate, is reduced by the first guide wheel and the second guide wheel.

[0021] 5. The present invention proposes a two-section torque buffer hinge, wherein the buffer device is provided with a guide protrusion, and the second hinge plate is provided with a first mounting groove for installing the buffer device. The first mounting groove is provided with a first guide groove and a second guide groove along the axial direction of the base, so that the second guide wheel and the guide protrusion are respectively adapted to the first guide groove and the second guide groove, ensuring that the buffer device moves along the axial direction of the second base. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a two-stage torsion buffer hinge according to the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the perspective from direction A;

[0025] Figure 3 This is one of the exploded views of a two-section torque buffer hinge according to this utility model;

[0026] Figure 4 This is the second exploded view of a two-section torsion buffer hinge according to the present invention.

[0027] Figure 5 This is a schematic diagram of an adjusting component for a two-stage torque buffer hinge according to the present invention.

[0028] Figure 6 This is a schematic diagram of a fixing component for a two-section torque buffer hinge according to the present invention.

[0029] Figure 7 This is a schematic diagram of the first hinge plate of a two-section torque buffer hinge according to the present invention.

[0030] Figure 8 This is a schematic diagram of the second hinge plate of a two-section torque buffer hinge according to the present invention;

[0031] Figure 9 This is a top view of a buffer device for a two-section torsion buffer hinge according to the present invention.

[0032] Figure 10 for Figure 9 BB-direction sectional view.

[0033] In the figure, 10 is the first hinge plate; 101 is the first base; 102 is the first pivot block; 103 is the abutment part; 104 is the guide slope; 20 is the second hinge plate; 201 is the second base; 2011 is the opening; 202 is the first mounting groove; 2021 is the first guide groove; 2022 is the second guide groove; 203 is the second pivot block; 301 is the base; 3011 is the first slope adjustment protrusion; 302 is the adjustment component; 3021 is the second slope adjustment protrusion; 303 is the transmission. Components; 3031, First slot; 3032, Second slot; 304, Fixing component; 305, First elastic component; 306, Second elastic component; 3041, Receiving groove; 3022, Third slot; 3023, Adjustment groove; 3042, Limiting protrusion; 40, Connecting column; 50, Buffer device; 501, Reset device; 502, Sliding seat; 5021, Second mounting groove; 503, First guide wheel; 504, Second guide wheel; 505, Guide protrusion; 60, Clamping plate. Detailed Implementation

[0034] The following is combined with Figures 1-10 This utility model will be described in detail.

[0035] A two-stage torque-damping hinge, such as Figure 1 As shown, the hinge includes a first hinge portion and a second hinge portion that are pivotally connected to each other. A transmission member 303 is connected to the first hinge portion, and a first force-receiving portion and a second force-receiving portion that are directly or indirectly connected to the second hinge portion. The transmission member 303 is located between the first force-receiving portion and the second force-receiving portion. A first elastic member 305 and a second elastic member 306 are respectively provided between the first force-receiving portion and the second force-receiving portion and the transmission member 303. When the first hinge portion and the second hinge portion rotate relative to each other, the interaction between the force-receiving portion and the transmission member 303 drives the first elastic member 305 and the second elastic member 306 to undergo elastic deformation sequentially or simultaneously.

[0036] Specifically, a transmission component 303 is fixedly connected to the first hinge portion, while two spatially spaced force-bearing portions, namely the first force-bearing portion and the second force-bearing portion, are fixedly connected to the second hinge portion. The transmission component 303 is located precisely between these two force-bearing portions. A first elastic element 305, which is a first torsion spring, is installed between the first force-bearing portion and the transmission component 303, and a second elastic element 306, which is a second torsion spring, is installed between the second force-bearing portion and the transmission component 303. When the first and second hinge portions rotate relative to each other, the transmission component 303 is forced to move relative to the two force-bearing portions, thereby sequentially or simultaneously compressing or twisting the first elastic element 305 and the second elastic element 306, causing them to undergo elastic deformation. These two elastic elements provide differentiated buffering torques at different stages of rotation, achieving a two-stage effect of smooth start-up and buffering at the final position.

[0037] In this embodiment, as Figure 4-5 As shown, the first force-bearing part is a self-tightening adjustment device, which includes a base 301. The base 301 is connected to the second hinge part. An adjustment member 302 is inserted into the lower part of the base 301. The bottom of the adjustment member 302 is connected to the first elastic member 305. An adjustment groove 3023 is opened on its top. A first inclined adjustment protrusion 3011 extends from the outer peripheral surface of the adjustment member 302 toward the base 301 in the axial direction. A second inclined adjustment protrusion 3021 that matches the first inclined adjustment protrusion 3011 is provided below the base 301.

[0038] Specifically, a movable adjusting member 302 is inserted below the base 301, and the bottom of the adjusting member 302 is directly connected to the first elastic member 305. To achieve the adjustment function, the top of the adjusting member 302 has an adjusting groove 3023 for operation with a tool, and its outer circumferential surface is designed with a first inclined adjusting protrusion 3011 extending axially. Correspondingly, a second inclined adjusting protrusion 3021 matching the first inclined protrusion is provided below the base 301. By rotating the adjusting member 302 with a tool, the interaction of the two sets of inclined protrusions allows the adjusting member 302 to produce a slight axial displacement relative to the base 301, thereby changing the preload of the first elastic member 305, achieving adjustment of the buffer force and compensation for gaps caused by wear. The top surface of the adjusting member 302 is also engraved with numbers corresponding to different settings along its circumference.

[0039] In this embodiment, as Figure 4 and Figure 6 As shown, the second force-bearing part is a fixing member 304, which is provided with a receiving groove 3041 and a limiting protrusion 3042. The first end of the transmission member 303 is provided with a first slot 3031 and its second end is provided with a second slot 3032. The adjusting member 302 is provided with a third slot 3022. The two ends of the first elastic member 305 are respectively engaged in the second slot 3032 and the third slot 3022. The first end of the second elastic member 306 is engaged in the first slot 3031 and its second end abuts against the limiting protrusion 3042.

[0040] The fixing member 304 has an internal receiving groove 3041, within which a limiting protrusion 3042 is formed. The transmission member 303 has a first slot 3031 at its first end and a second slot 3032 at its second end. The adjusting member 302 has a third slot 3022. The two ends of the first elastic member 305 are respectively engaged in the second slot 3032 of the transmission member 303 and the third slot 3022 of the adjusting member 302. One end of the second elastic member 306 is engaged in the first slot 3031 of the transmission member 303, and the other end abuts against the limiting protrusion 3042 of the fixing member 304. This combination of engagement and abutment ensures that torque can be efficiently and reliably transmitted to the two elastic members and limits their ineffective movement.

[0041] In this embodiment, as Figure 7 and Figure 8 As shown, the first hinge portion includes a first hinge plate 10 and a first base 101 spliced ​​to the first hinge plate 10, and the second hinge portion includes a second hinge plate 20 and a second base 201 spliced ​​to the second hinge plate 20. The first hinge plate 10 is provided with a first pivot block 102, and the second hinge plate 20 is provided with a second pivot block 203. The first pivot block 102 and the second pivot block 203 are pivotally connected to each other so that the first hinge plate 10 and the second hinge plate 20 can rotate relative to each other.

[0042] In this embodiment, the first pivot block 102 and the second pivot block 203 are provided with coaxial through holes, and the first force-bearing part, the second force-bearing part, and the transmission component 303 are installed in the through holes. The self-tightening adjustment device, the fixing component 304, and the transmission component 303 can all be accommodated and installed inside this through hole. This design completely integrates the core buffer module into the pivot shaft, making the hinge appearance cleaner and more compact, the overall structural strength higher, and the space effectively utilized.

[0043] In this embodiment, the second hinge plate 20 is provided with a first mounting groove 202, and the second base 201 is provided with an opening 2011 communicating with the first mounting groove 202. A buffer device 50 is provided in the first mounting groove 202. The first hinge plate 10 is provided with an abutment portion 103. When the first hinge plate 10 is closed, the abutment portion 103 abuts against the buffer device 50 through the opening 2011.

[0044] Specifically, the first hinge plate 10 is provided with a rotating groove on the side facing the base and has a gap space with the base to facilitate the rotation of the first hinge plate 10 through the second pivot. The first hinge plate 10 is also provided with a positioning through hole for fixing the wall surface or other panels.

[0045] The aforementioned first and second hinge portions include connecting posts 40 respectively disposed on the first hinge plate 10 and the second hinge plate 20. The top of the connecting post 40 is provided with a threaded groove, and the door panel is fixed to the first or second hinge portion via the threaded groove of the connecting post 40 and fasteners such as screws. Alternatively, the second hinge portion further includes a clamping plate 60 for holding the door panel. The clamping plate 60 is mounted on the connecting post 40, and the clamping plate 60 and the mounting plate clamp together to fix the door panel, such as a glass door. Gaskets are provided on the clamping plate 60 and the mounting plate to increase the friction when holding the door panel.

[0046] In this embodiment, as Figures 9 to 10 As shown, the buffer device 50 includes a reset device 501, which is fitted with a sliding seat 502. The sliding seat 502 is provided with a first guide wheel 503, which abuts against the abutting part 103. Further, the abutting part 103 abuts against one side of the first guide wheel 503, which is a guide slope 104. Further, the sliding seat 502 is also provided with a second guide wheel 504, which rolls against the side wall of the first mounting groove 202. Further, the first mounting groove 202 has a first guide groove 2021 and a second guide groove 2022 along the axial direction of the base. The sliding seat 502 has a guide protrusion 505 along the movement direction of the sliding seat 502. The second guide wheel 504 is adapted to the first guide groove 2021, and the guide protrusion 505 is adapted to the second guide groove 2022.

[0047] Specifically, the aforementioned buffer device 50 is provided with a second mounting groove 5021, and the reset device 501 is slidably connected in the second mounting groove 5021. The reset device 501 is preferably a damper. The aforementioned first guide wheel 503 has two parts, and the aforementioned second guide wheel 504 has one part. The rolling surface of the first guide wheel 503 is provided with a rolling protrusion that is adapted to the first guide groove 2021.

[0048] During the rotation of the first hinge plate 10 and the second hinge plate 20, the guide slope 104 and the second guide wheel 504 press against each other, causing the buffer device 50 to continuously press against the damper. That is, the guide slope 104 rotates laterally as a whole. During the mutual pressing process of the guide slope 104 and the second guide wheel 504, the buffer device 50 is ensured to move along the axial direction of the base, and the friction between the buffer device 50 and the first base 101 is reduced.

[0049] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A two-stage torque-damping hinge, comprising a first hinge portion and a second hinge portion pivotally connected to each other, characterized in that, A transmission member is connected to the first hinge portion, and a first force-receiving portion and a second force-receiving portion are spaced apart on the second hinge portion; the transmission member is located between the first force-receiving portion and the second force-receiving portion; a first elastic member and a second elastic member are respectively provided between the first force-receiving portion and the second force-receiving portion and the transmission member; when the first hinge portion and the second hinge portion rotate relative to each other, the interaction between the force-receiving portion and the transmission member drives the first elastic member and the second elastic member to undergo elastic deformation sequentially or simultaneously.

2. The two-stage torsion buffer hinge as described in claim 1, characterized in that, The first force-bearing part includes a base, which is connected to the second hinge part. An adjusting member is inserted into the lower part of the base. The bottom of the adjusting member is connected to the first elastic member, and an adjusting groove is provided on its top. A first inclined adjusting protrusion extends from the outer peripheral surface of the adjusting member toward the base in the axial direction. A second inclined adjusting protrusion that matches the first inclined adjusting protrusion is provided below the base.

3. A two-stage torque-buffered hinge as described in claim 2, characterized in that, The second force-bearing part is a fixing member, the fixing member is provided with a receiving groove, the receiving groove is provided with a limiting protrusion, the first end of the transmission member is provided with a first slot, the second end of the transmission member is provided with a second slot, the adjusting member is provided with a third slot, the two ends of the first elastic member are respectively engaged in the second slot and the third slot, the first end of the second elastic member is engaged in the first slot, and the second end abuts against the limiting protrusion.

4. A two-stage torsion-buffered hinge as described in claim 1, characterized in that, The first hinge portion includes a first hinge plate and a first base attached to the first hinge plate. The second hinge portion includes a second hinge plate and a second base attached to the second hinge plate. The first hinge plate is provided with a first pivot block. The first hinge plate is provided with a first pivot block, and the second hinge plate is provided with a second pivot block. The first pivot block and the second pivot block are pivotally connected to each other so that the first hinge plate and the second hinge plate can rotate relative to each other.

5. A two-stage torque-buffered hinge as described in claim 4, characterized in that, The first pivot block and the second pivot block are provided with coaxial through holes, and the first force-receiving part, the second force-receiving part and the transmission component are installed in the through holes.

6. A two-stage torsion-buffered hinge as described in claim 5, characterized in that, The second hinge plate is provided with a first mounting groove, and the second base is provided with an opening communicating with the first mounting groove. A buffer device is provided in the first mounting groove. The outer surface of the first pivot block of the first hinge plate is provided with an abutment portion. When the first hinge plate is closed, the abutment portion abuts against the buffer device through the opening.

7. A two-stage torsion-buffered hinge as described in claim 6, characterized in that, The buffer device includes a reset device, which is fitted with a sliding seat. The sliding seat is provided with a first guide wheel, which is used to abut against the abutting part.

8. A two-stage torsion-buffered hinge as described in claim 7, characterized in that, The abutting part abuts against one side of the first guide wheel, which is a guide slope.

9. A two-stage torsion-buffered hinge as described in claim 7, characterized in that, The sliding seat is also provided with a second guide wheel, which rolls against the side wall of the first mounting groove.

10. A two-stage torsion-buffered hinge as described in claim 9, characterized in that, The first mounting groove is provided with a first guide groove and a second guide groove along the movement direction of the sliding seat. The sliding seat is provided with a guide protrusion. The second guide wheel is adapted to the first guide groove, and the guide protrusion is adapted to the second guide groove.

Images