RU2656844C1 - Loop with damping effect and device supplied with such loop - Google Patents

Abstract

FIELD: manufacturing technology.

SUBSTANCE: damping effect loop comprising first component (12), second component (14), main spring (16), coupling part (18), damping component (200), coupling component (22) and locking spring (24) is provided. Second component (14) is hingedly connected to first component (12) and rigidly connected to the main body. Main spring (16) is connected to coupling part (18) located inside first component (12) and to first component (12). Coupling part (18) is connected to main spring (16) and to second component (14). Damping component (20) comprises damper body (200), telescopic rod (202), return spring (204), restraining piece (206), and third rotating shaft (208).

EFFECT: loop is proposed that creates a damping effect.

11 cl, 7 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a loop and, in particular, to a loop creating a shock-absorbing effect, and to a device having such a loop.

BACKGROUND OF THE INVENTION

The hinge used on the hinged door of the oven does not currently create the effect of automatically closing the door. That is, the user has to strongly push or pull the door throughout the entire process of opening or closing the door, which leads to poor closing of the door.

SUMMARY OF THE INVENTION

The present invention is directed to an oven hinge having good characteristics in order to improve at least one of the effects of operating the hinge in the art. Thus, the present invention is directed to the creation of a loop. capable of closing the door based on the elastic force of the hinge when the door body is closed to a certain extent, and capable of performing the process of automatic closing smoothly and silently with the help of a damper.

The present invention also provides a device having such a loop.

The damping loop according to a preferred embodiment of the first aspect of the present invention comprises a first assembly, a second assembly, a main spring, a connecting part, a damping assembly, a connecting assembly and a locking spring. The first node and the second node are adapted to be attached to the device body and to the hinged door, respectively, and are rotatably connected by the first shaft so that the hinged door can be extended by turning downward relative to the device body. The first node is made in the form of a rectangular case and contains a first end rotatably connected to the second node, and a second end opposite the first end. The first assembly has a first guide groove adjacent to the first end, and the second assembly has a cam portion. The main spring is located in the first node, and the first end of the main spring is rigidly fixed to the second end of the first node. The connecting part is provided with a top cover so as to be inserted into the first assembly to form a cavity, and the connecting part has a second guide groove. The damping assembly comprises a damper body, a retractable and retractable shaft, a return spring, a limiting position member and a third rotating shaft. The damper body is located in the cavity and has a third guide groove. The retractable and retractable rod extends from the damper body to the second node. The return spring is worn on a retractable and retractable rod and is located in the body of the damper. The limiting part is fixed in the first node and a retractable and retractable rod passes through it. A third rotating shaft connects the damper body to the connecting part. The third rotating shaft is rotatably and slidably mounted in the second guide groove and in the third guide groove. The connecting node is located between the second node and the retractable and retractable rod. The connecting unit is rigidly connected to a retractable and retractable rod. The connecting unit is connected to the connecting part by a fourth rotating shaft. The fourth rotating shaft is rotatably and slidable in the first guide groove. The connecting unit contains a driven roller. The locking spring is mounted on the retractable and retractable shaft and is located between the part limiting the position and the connecting unit so as to allow the driven roller to be in rotational contact with the cam section. The cam section has a balanced section, a critical section and a damped closing section during the rotation of the second node from the position in which the largest opening angle is formed between the first node and the second node, to the position of the first node when the cam section sequentially enters the driven roller with these sections . In a balanced area, the locking spring is in a compressed state and returns to its initial state, the return spring is in its natural state, the damper body is stationary in the cavity, the main spring is in a stretched state and goes into the initial state and the tension created by the main spring is balanced by the weight loop load. At the critical section, the locking spring is in a compressed state and returns to its initial state, the return spring is in its natural state, the damper body slides in the cavity toward the second end, the main spring is in a stretched state, and the tension force created by the main spring exceeds the weight loop load. In the damped closing area, the locking spring is in a compressed state and returns to its initial state, the return spring is in its natural state, the retractable and retractable rod is removed into the damper body, the main spring is in a stretched state, and goes into the initial state, the tension force created by the main the spring exceeds the weight load on the loop, and the damper body creates an inverse damping effect.

In the hinge of the embodiments of the present invention, since the main spring is used, the weight of the hinged door can be balanced when the hinged door is pulled down, thereby realizing the effects of stable opening and stable closing. Additionally, since the main spring and the damping unit are used, the hinged door can be closed automatically and slowly, thereby increasing usability.

In some embodiments, the first assembly comprises a bottom plate and side walls extending upward from two sides of the bottom plate. The first guide groove is formed in each of the two side walls and has an arcuate shape.

In some embodiments, the connecting piece comprises two side plates that are tightly attached to the side walls, respectively, and the top cover is connected to two side plates.

In some embodiments, the cavity has a rectangular shape, the damper body has a cylindrical shape, and the shapes of the damper body and the cavity are aligned with each other so that the damper body can slide in the cavity.

In some embodiments, the position limiting part is L-shaped and comprises a lower plate rigidly connected to the lower plate and a block plate extending upward from the bottom plate, with a retractable and retractable shaft extending through the block plate.

In some embodiments, the connecting unit comprises a connecting body rigidly connected to a retractable and retractable shaft, and the driven roller is located at the connecting body. The connecting body and the connecting part are connected by a fourth rotating shaft arranged to slide in the first guide groove. The connecting body has a fixed shaft, the driven roller has an annular shape and is worn on a fixed shaft, while the driven roller maintains a rotating connection with the cam section.

In some embodiments, in a balanced area, the hinged door is rotatable by 50 ° -70 °.

In some embodiments, at a critical site, the hinged door is rotatable 10 ° -15 °.

In some embodiments, in accordance with the damped closing portion, the hinged door is rotatable 10 ° -25 °.

The device according to a preferred embodiment of the second aspect of the present invention comprises a device body, a hinged door and a hinge having the configuration described above.

In the device according to the embodiments of the present invention, by using the main spring, the weight of the hinged door can be balanced when the hinged door is pulled down, thereby realizing the effects of stable opening and closing. Additionally, thanks to the use of a locking spring and a damping unit, the hinged door can be closed automatically and slowly, thereby increasing ease of use.

Additional aspects and advantages of the embodiments of the present invention will be apparent from the following description, will become apparent in part from the following description, or will be apparent from the implementation of embodiments of the present invention.

Brief Description of the Drawings

These and other aspects and advantages of embodiments of the present invention will be apparent from the following description with reference to the attached drawings.

FIG. 1 is a perspective view of a loop creating a damping effect according to an embodiment of the present invention.

FIG. 2 is an exploded view of a loop creating a damping effect according to an embodiment of the present invention.

FIG. 3 is a section through a loop creating a damping effect along line III-III of FIG. one.

FIG. 4 shows a perspective view of a first loop assembly creating a damping effect according to an embodiment of the present invention.

FIG. 5 is a perspective view of a stepped part of a loop creating a damping effect according to an embodiment of the present invention.

FIG. 6 is a perspective view of a connecting part of a loop creating a damping effect according to an embodiment of the present invention.

FIG. 7 is a perspective view of a connecting body of a loop creating a damping effect according to an embodiment of the present invention.

Detailed description

The following is a detailed description of the present invention and examples of its variants shown in the drawings, where the same or similar positions denote the same or similar elements, or elements with the same or similar functions. The options described with reference to the drawings are explanatory, illustrative and are used for a general understanding of the present invention. These options should not be construed as limiting the present invention.

It should be understood that the terms used in the description, such as "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear" , “Left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “internal”, “external”, “clockwise”, “counterclockwise” should be interpreted as referring to orientation, which is described or shown in the drawings. These relative terms are provided for convenience of description and do not require the construction or operation of the present invention in a specific orientation. Additionally, terms such as “first” and “second” are used for description purposes and do not define or imply relative importance or significance and do not imply the number of indicated technical features. Therefore, signs defined by the numerals “first” and “second” may contain one or more such signs. In the description of the present invention, the term “plurality” means two or more than two, unless otherwise indicated.

In the present description, unless otherwise indicated and defined otherwise, it should be understood that the terms “mounted”, “connected”, “attached”, etc., are used in a broad sense and may refer, for example, to fixed connections, detachable connections, or integral compounds; they can be electrical or mechanical connections, they can be direct or indirect connections through intermediate structures, they can be internal communications or the interaction of two elements, which is clear to specialists in accordance with a specific situation.

In the present description, unless otherwise indicated, a structure in which the first feature is “on” or “below” the second feature may have an option in which the first feature is in direct contact with the second feature, and may also have an option in which the first feature and the second feature are not in direct contact with each other, but are in contact through an additional feature formed between them. In addition, the first feature “on” the second feature, or “above” the second feature, or “on top” of the second feature, may have an option in which the first feature is directly or obliquely “on” the second feature, “above” the second feature ”or “On top” of the second attribute, or does it simply mean that the first attribute is at a height greater than the second attribute; whereas the structure in which the first feature is “below the second feature”, “below” the second feature or “at the bottom” of the second feature may comprise a variant in which the first feature is directly or obliquely “below” the second feature, “below” or “At the bottom” of the second sign, or does it simply mean that the first sign is at a height less than the second sign.

In the following description, various embodiments of various structures of the present invention are presented. To simplify the description, certain elements and settings will be described. However, such elements and settings are by way of example only and do not limit the present invention. Additionally, reference numerals may be repeated in various examples of the present invention. Such repetitions are intended to simplify the description and do not indicate the relationship between the various options and / or settings. The following description provides examples of various processes and materials. However, it should be understood by those skilled in the art that other processes and materials may also be used.

As shown in FIG. 1-3, a damping effect loop 10 according to a preferred embodiment of the present invention comprises a first assembly 12, a second assembly 14, a main spring 16, a connecting piece 18, a damping assembly 20, a connecting assembly 22 and a locking spring 24. The first assembly 12 and the second the assembly 14 is adapted to be attached to the housing of the device and to the hinged door, respectively, and are rotatably connected by the first rotating shaft 142 so that the hinged door can be rotated to pull down relative to the housing of the device. The first node 12 is a rectangular housing and has a first end 120 rotatably connected to the second node 14, and a second end 122 opposite the first end 120. The first node 12 has a first guide groove 124 adjacent to the first end 120, and the second node 14 has a cam portion 140. The main spring 16 is located in the first node 12 and has a first end rigidly attached to the second end 122. The connecting part 18 is connected to the second end of the main spring 16 and, further, rotatably connected to the second node 14 using the second rotating shaft 26. The connecting part 18 is provided with a top cover 180 that is inserted into the first assembly 12 to form a cavity 182, and a second guide groove 184 is made in the connecting part 184. The damping assembly 20 comprises a damper body 200, a retractable and retractable shaft 202 , a return spring 204, a position limiting part 206, and a third rotary shaft 208. The damper body 200 is located in the cavity 182 and has a third guide groove 20a. The retractable and retractable shaft 202 protrudes from the body of the damper 200 in the direction of the second node 14. The return spring 204 is worn on the retractable and retractable shaft 202 and is located in the body of the damper 200. The limiting position piece 206 is fixed in the first node 12 and the retractable and retractable passes through it the rod 202. A third rotating shaft 208 connects the body of the damper 200 to the connecting part 18. The third rotating shaft 208 is rotatably and slidable in the second guide groove 184 and the third guide channel 20a ke. The connecting unit 22 is located between the second node 14 and the retractable and retractable shaft 202. The connecting node 22 is rigidly connected to the retractable and retractable shaft 202. The connecting node 22 is connected to the connecting part 18 by a fourth rotating shaft 28. The fourth rotating shaft 28 is rotatably and sliding mounted. in the first guide groove 124. The connecting unit 22 includes a driven roller 220. The locking spring 24 is worn on the retractable and retractable shaft 202 and is located between the part 206, limiting position, and the connecting unit 22 so that the driven roller 220 can maintain rotational contact with the cam portion 140. The cam portion 140 has a balanced portion, a critical portion and a damped closing portion during rotation of the second node 14 from a position in which between the first node 12 and the second node 14 is formed the largest angle to the first node 12, and the cam section 140 sequentially interacts with the driven roller 220 of these sections. In a balanced area, the locking spring 24 is in a compressed state and returns to its initial state, the return spring 204 is in its natural state, the damper body 200 is stationary in the cavity 182, the main spring 16 is in a stretched state and goes into the initial state, and the tension force created by the main spring 16 is balanced by the weight load on the loop 10. At the critical section, the locking spring 24 is in a compressed state and the return spring 204 is in its initial state In its natural state, the body of the damper 200 slides in the cavity 182 towards the second end 122, the main spring is in a stretched state, and the tensile force created by the main spring 16 is greater than the weight load on the loop 10. In the damped closing portion, the locking spring 24 is compressed state and returns to its initial state, the return spring 204 is in its natural state, the retractable and retractable shaft 202 is removed in the body of the damper 200, the main spring 16 is in a stretched state and goes in the initial state, the tension force created by the main spring 16 is greater than the weight load on the loop 10, and the body of the damper 200 creates an inverse damping effect.

In the hinge of the preferred embodiment of the present invention, since the main spring 16 is used, the weight of the hinged door can be balanced by pulling the hinged door down, which leads to stable opening and stable closing. Additionally, since a locking spring 24 and a damping assembly 20 are used, the hinged door can be closed automatically and slowly, which increases usability.

As shown in FIG. 4, in the present embodiment, the first assembly 12 has a substantially rectangular shape. The first assembly 12 has a first end 120 and a second end 122 opposite the first end 120. The first assembly 12 further comprises a lower plate 126 and side walls 128 extending from two sides of the lower plate 126, respectively. A first guide groove 124 is formed in each of the two side walls 128, has an arcuate shape and extends substantially along the length direction of the first node 12. The first guide groove 124 contains a first endpoint 1240 and a second endpoint 1242 opposite the first endpoint 1240.

Thus, it is possible to create a path for the movement of the connecting node 22, using an arcuate guide groove 124.

As shown in FIG. 3, the main spring 16, the connecting part 18, the damping assembly 20, the connecting assembly 22 and the locking spring 24 are specifically located in the first assembly 12. The first assembly 12 has a groove 128a in the lower plate 126 adjacent to the first end 120, and the groove 128a runs parallel the axial direction of the first node 12. The groove 128a is U-shaped. The first node 12 and the second node 14 are connected by means of a first rotating shaft 142 at the first end 120. The first node 12 is rotatable relative to the second node 14 around the first rotating shaft 142, and also synchronously drive the connecting part 18. The second node 14 is made with the possibility of rotation in the groove 128a relative to the first node 12. The first node 12 is connected to the fifth rotating shaft 30 at the second end 122, and the fifth rotating shaft 30 runs parallel to the first rotating shaft 142. The rear end of the connecting part and 18, remote from the first end 120, is connected to the connecting shaft 32 parallel to the fifth rotating shaft 30. The main spring 16 is connected to the fifth rotating shaft 30 and the connecting shaft 32. The second node 14 is connected to the stepped part 36 by a sixth rotating shaft 34 parallel to the second rotary shaft 26. The stepped part 36 includes a fifth side 360 and a stiff side 362 opposite the fifth side 360. The second node 14 is located between the fifth side 360 and the sixth side 362. The sixth rotating shaft 34 passes through the fifth side 360 and the pole a side 362 for connecting to the second node 14. The fifth side 360 and the sixth side 362 are connected by a first step surface 364. Above the first step surface 364, the fifth side 360 and the sixth side 362 are connected by a second step surface 366. The step part 36 is U-shaped, and the first step surface 364 and the second step surface 366 form a step shape. The first stepped surface 364 is intended to be inserted into the groove 128a, and the second stepped surface 366 is designed to abut the bottom plate 126 of the first assembly 12.

As shown in FIG. 6, in the present embodiment, the connecting part 18 is located in the first node 12 and contains two side plates 186 and a top cover 180 connected to the two side plates 186. The two side plates 186 are tightly attached to the two side walls 128 of the first node 12, respectively. The upper cover 180 extends parallel to the lower plate 126 of the first assembly 12, and the upper cover 180 is inserted into the first assembly 12 to form a cavity 182, while the damper body 200 is slidable in the cavity 182. The second assembly 14 has the shape of a plate located in the connecting part 18, and extends into a groove 128a. The connecting part 18 and the second node 14 are connected by a second rotating shaft 26 parallel to the first rotating shaft 142. The connecting part 18 connects the main spring 16 to the second node 14 and the joint angles of the connecting part 18 and the second node 14 do not coincide with the first rotating shaft 142 of the second node 14 so that the second assembly 14 can drive the connecting part 18 when the second assembly 14 is rotated relative to the first assembly 12 so as to stretch the main spring 16.

Thus, the connecting part 18 provided with the top cover 180 limits the position of the body of the damper 200.

In the present embodiment, the cavity 182 has a rectangular shape, the body of the damper 200 has a cylindrical shape and the shape of the body of the damper 200 and the cavity 182 are aligned with each other so that the body of the damper 200 can slide in the cavity 182.

In the present embodiment, the position limiting part 206 is L-shaped and comprises a lower plate 206a rigidly connected to the lower plate 126 and a blocking plate 206b extending upward from the bottom plate 206a, with the retractable and retractable shaft 202 passing through the blocking plate 206b .

Thus, the position limiting part 206 limits the position of the damper body 200. The connecting part 18, the position limiting part 206 and the third rotary shaft 208 interact to determine the range of motion of the damper body 200, thereby creating a simple structure that is easy to assemble and disassemble.

More specifically, the connecting part 18, the position limiting part 206, and the third rotating shaft 208 located in the second guide groove 184 and in the third guide groove 20a determine the sliding path of the damper body 200. The position of the damper body 200 is limited by the connecting part 18, the limiting part 206 position and the third rotating shaft 208. The body of the damper 200 is arranged to move in the axial longitudinal direction of the third guide groove 20a linearly and reciprocally. When the hinged door is opened at the greatest angle, the third rotary shaft 208 is located on the right end of the third guide groove 20a. The retractable and retractable shaft 202 extends from the body of the damper 200, and the rear end of the retractable and retractable shaft 202 is attached to the connecting unit 22 by a threaded rod 38. The body of the damper 200 is designed as a hydraulic damper.

As shown in FIG. 7, in the present embodiment, the connecting unit 22 comprises a connecting body 222 and a driven roller 220 located at the connecting body 222, and the connecting body 222 is rigidly connected to the retractable and retractable shaft 202. The connecting body 222 and the connecting piece 18 are connected by a fourth rotating shaft 28 mounted can slide in the first guide groove 124. The connecting body 222 has a fixed shaft 2220, the driven roller 220 has an annular shape and is mounted above the fixed shaft 2220, while the driven roller 220 is stored makes permanent contact with the cam portion 140. The driven roller 220 can rotate using the fourth rotating shaft 28 as its axis and, thus, the driven roller is guaranteed to constantly contact the cam section 140. The connecting body 222 comprises a third side 2222, a fourth side 2224 opposite the third side 2222, and a blocking surface 2226 perpendicular to the third side 2222 and the fourth side 2224, and located between the third side 2222 and the fourth side 2224. A fixed shaft 2220 is formed between the third side 2222 and fourth side 2224. In the center of the blocking surface 2226, a hole 2228 is made into which the retractable and retractable shaft 202 can be inserted. The retractable and retractable shaft 202 directly passes through the hole 2228 and the threaded rod 38 mounted on the retractable and retractable shaft 202 blocks the blocking surface 2226. The connecting body 222 is integrally formed and the cam portion 140 has concave and convex portions in different ways in contact with the driven roller 220.

Accordingly, the connecting part 18 and the connecting unit 22 are connected by a fourth rotating shaft 28, and the fourth rotating shaft 28 is slidably mounted in the first guide groove 124. The connecting part 18 causes the fourth rotating shaft 28 to slide in the first guide groove 124.

The first node 12 is installed on the hinged door, and the second node 14 is installed on the device. When the loop 10 is operating, the position of the second node 14 remains constant, and the first node 12 can rotate around the first rotating shaft 142 by a certain angle, and drives the connecting part 18 connected to the second node 14 in synchronous motion so that the main spring 16 connected with connecting piece 18, could stretch out. Under the action of the main spring 16 and the damping unit 20, the hinged door can be closed automatically and slowly.

More specifically, the balanced portion represents the transition of the loop 10 from position n1 to position n2; the critical portion represents the transition of loop 10 from position n2 to position n3, and the damped closing portion represents the transition of loop 10 from position n3 to position n4. When the second node 14 is located in position n1 relative to the first node 12, the hinge 10 has the largest opening angle, and the hinged door is open at the largest angle. When the second node is in position n4 relative to the first node 12, the hinge 10 has the smallest opening angle and the door body is in the closed state.

When the second node 14 is in position n1 relative to the first node 12, the connecting part 18 pushes the fourth rotary shaft 28 to the first end point 1240, the third rotary shaft 208 is located on the right end of the third guide groove 20a, the main spring 16 is stretched by the connecting part 18 so that be in a stretched state, and the tension force of the main spring 16 is balanced by the weight load on the loop 10. When the loop 10 is rotated through an angle a, i.e. in a balanced state from position n1 to position n2, since the tension force of the main spring 16 is balanced by the weight load on the hinge 10, the hinged door can remain motionless in any position in this range, in which case it will require the use of force to close the hinged door.

When the second node 14 is in position n2 relative to the first node 12, the tension force of the main spring 16 is greater than the weight load on the loop 10. When the loop is opened at such an angle b, i.e. is at a critical distance from position n2 to position n3, the connecting part 18 connected to the main spring 16 slides towards the main spring 16 and therefore the damper body 200 slides so that the third rotating shaft is displaced to the left end of the third guide groove 20a, those. the hinge 10 can automatically drive the hinged door to rotate quickly in the closing direction, in which case the hinged door can be closed automatically without the application of external force.

When the second node 14 is in position n3 relative to the first node 12, the tension force of the main spring 16 is greater than the weight load on the loop 10, the third rotating shaft 208 is on the left end of the third guide groove 20a, and the return spring 204 restores its state from compressed to natural. When the loop 10 opens at an angle c, i.e. located on the damped closing portion, moving from position n3 to position n4, the connecting part 18 connected to the main spring 16 continues to slide towards the main spring 16, the retractable and retractable shaft 202 begins to retract into the body of the damper 200, and thus the damper body begins to generate a reverse damping force in order to slow down the speed of rotation of the door body, driven by the hinge 10, so that the door rotates slowly and evenly, in which case the hinged door can close automatically and seamlessly, not slam with a rebound.

When the second node 14 is in position n4 relative to the first node 12, the hinge 10 has the smallest opening angle and the door body is in the closed state. In this case, the main spring 16, the locking spring 24 and the return spring 204 are all in a natural state.

When the loop 10 is opened from position n4 to any position within the angle C under the action of an external force (which is usually exerted by a person), the body of the damper 200 slides towards the second node 14, and the return spring 204 applies a drag force to the body of the damper 200 to release hydraulic oil in the body of the damper 200, When the external force ceases to act, since the tension force of the main spring 16 is greater than the weight load on the loop 10, the hinged door rotates in the direction of the main spring 16, that is, the hinged door is closed tsya slowly and evenly, ie loop 10 returns to position n4.

In the present embodiment, in a balanced area, hinge 10 is between position n1 and position n2, and in this case, the tension created by the main spring 16 is balanced by the weight load on the hinge 10, and therefore the hinged door can be left in any position in the range of angle a. In a balanced area, the hinged door has the ability to rotate through an angle of 50 ° -70 °, i.e. the range of angle a is 50 ° -70 °.

In the present embodiment, in the critical section, loop 10 is between position n2 and position n3, and in this case, the tension created by the main spring 16 is greater than the weight load on loop 10, so the loop can quickly rotate from position n2 to position n3 in the range angle b. In a critical area, the hinged door can rotate at an angle of 10 ° -15 °, that is, the range of angle b is 10 ° -15 °.

In the present embodiment, in the damped closing portion, loop 10 is between position n3 and position n4, and in this case, the tension force of main spring 16 is greater than the weight load on loop 10, so the loop can slowly rotate from position n3 to position n4 in the range of angle c . In the damped closing area, the hinged door can be rotated through an angle of 10 ° -25 °, i.e. the angle range c is 10 ° -25 °.

Therefore, the hinged door can automatically and slowly close in a given range of angles, thereby increasing ease of use.

Of course, the numerical values given above are only examples to help illustrate the way in which hinge 10 implements automatic slow closing of the hinged door within a certain opening and closing angle, but such values do not limit the present invention.

A device in a preferred embodiment of the present invention comprises a device body and a hinged door. The device contains the hinge 10 described above. The first node 12 is rigidly attached to the hinged door, and the second node 14 is rigidly attached to the device body. Optional device is an oven. Of course, the oven is only an example, and does not limit the present invention. Thus, the hinged door of the device can be closed automatically and slowly, which prevents damage to the hinged door of the device as a result of sudden slamming.

The indications in the present description of “option”, “some options”, “illustrative option”, “example”, “concrete example”, or “some examples” mean that a particular feature, structure, material or characteristic described in connection with variant or example included in at least one variant or example of the present invention. In addition, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiment or example.

Although variants of the present invention have been described and shown above, those skilled in the art should understand that various changes, modifications, alternatives and variations are permissible without departing from the principles and objectives of the present invention. The scope of the present invention is determined by the attached formula or its equivalents.

Claims (26)

1. A loop creating a damping effect, comprising: the first node and the second node, the first node comprising a first end rotatably connected to the second node and a second end opposite the first end, the first node having a first guide groove adjacent to the first end, and the second node has a cam portion; the main spring located in the first node, while the first end of the main spring is rigidly connected to the second end of the first node; a connecting part located in the first node, connected to the second end of the main spring and also rotatably connected to the second node by a second rotating shaft, the connecting part comprising a top cover inserted into the first node to form a cavity; wherein the connecting part has a second guide groove; a damping assembly comprising: a damper body located in the cavity and having a third guide groove; a retractable and retractable rod extending from the damper body to the second node; a return spring worn on a retractable and retractable rod, and located in the body of the damper; a part limiting the position, fixed in the first node and through which passes the retractable and retractable rod; and a third rotating shaft connecting the damper body to the connecting part, and arranged to rotate and slide in the second guide groove and in the third guide groove; a connecting node located between the second node and the retractable and retractable rod, the connecting node being rigidly connected to the retractable and retractable rod, the connecting node being connected to the connecting part by a fourth rotating shaft, and the fourth rotating shaft is mounted for rotation and sliding in the first guide groove ; wherein the connecting unit comprises a driven roller; and a locking spring worn on a retractable and retractable shaft and located between the position limiting part and the connecting unit so that the driven roller maintains rotating contact with the cam portion, moreover, the cam section has a balanced section, a critical section and a damped closing section during the rotation of the second node from the position in which the largest angle is formed between the first node and the second node, and the cam section interacts with the driven roller in series with these sections; in a balanced area, the locking spring is in a compressed state and goes into its initial state, the return spring is in its natural state, the damper body is stationary in the cavity, the main spring is in a stretched state and goes into the initial state, and the tension force created by the main spring is balanced by the weight loop load; at the critical section, the locking spring is in a compressed state and returns to its initial state, the return spring is in its natural state, the damper body slides in the cavity toward the second end, the main spring is in a stretched state and the tension created by the main spring is greater than weight load on the loop; in the damped closing section, the locking spring is in a compressed state and returns to its initial state, the return spring is in its natural state, the retractable and retractable rod is removed into the damper body, the main spring is in a stretched state and goes into the initial state, the tension force created by the main spring more than the weight load on the loop, and the damper body generates an inverse damping effect. 2. The hinge of claim 1, wherein the first assembly comprises a lower plate and side walls extending upward from two sides of the lower plate, and a first guide groove is made in each of the two side walls and has an arcuate shape. 3. The hinge of claim 2, wherein the connecting piece comprises two side plates tightly attached to the side walls, respectively, and the top cover is connected to two side plates. 4. The loop according to claim 1, in which the cavity has a rectangular shape, the damper body has a cylindrical shape, and the shapes of the damper body and the cavity are aligned with each other so as to allow the damper body to slide in the cavity. 5. The hinge of claim 2, wherein the position limiting part is L-shaped, wherein the position limiting part comprises a lower plate rigidly connected to the lower plate and a blocking plate extending upward from the bottom plate and through the blocking the plate passes a retractable and retractable rod. 6. The loop according to claim 1, in which the connecting node comprises a connecting body rigidly connected to a retractable and retractable rod, and a driven roller located on the connecting body, while the connecting body and the connecting part are connected by a fourth rotating shaft that is slidably the first guide groove, wherein the connecting body has a fixed shaft, the driven roller has an annular shape and is mounted above the fixed shaft, and the driven roller maintains a rotating connection with the cam site. 7. The loop according to any one of paragraphs. 1-6, in which the hinged door is made with the possibility of rotation in a balanced area at an angle of 50 ° -70 °. 8. The loop according to any one of paragraphs. 1-6, in which the hinged door is made with the possibility of rotation in a critical area at an angle of 10 ° -15 °. 9. The loop according to any one of paragraphs. 1-6, in which the hinged door is made with the possibility of rotation in the area of the damped closing at an angle of 10 ° -25 °. 10. The loop according to claim 1, in which the first node is made as a rectangular case. 11. A device comprising a device body, a hinged door and a hinge according to any one of paragraphs. 1-10, while the first node and the second node of the hinge are adapted to be attached to the device body and to the hinged door, respectively, and are rotatably connected by the first rotating shaft so that the hinged door can be pulled down with rotation relative to the device body.

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