CN210622571U

CN210622571U - Novel stable damping door hinge

Info

Publication number: CN210622571U
Application number: CN201920812195.8U
Authority: CN
Inventors: 严晓杰
Original assignee: Tian Si Li Plastics Co ltd
Current assignee: Tian Si Li Plastics Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-05-26
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a novel stable form damping hinge, include: the damping device comprises a first hinge, a second hinge, a damping fin, a locking mechanism, an unlocking mechanism and a buffer mechanism, wherein the first hinge is hinged with the second hinge, the damping fin is arranged on the first hinge, the locking mechanism is arranged on the second hinge, the locking mechanism corresponds to the damping fin, the unlocking mechanism is arranged on one side of the locking mechanism, and the buffer mechanism is arranged in the second hinge; the device also comprises an adjusting mechanism; the hinge is locked by using the self-locking mechanism, so that the door leaf is prevented from being automatically closed; meanwhile, the rotation of the hinge is buffered, so that the door is slowly closed, the impact force generated when the door leaf is closed is greatly relieved, and the mute degree and the safety of the door leaf are improved; on the other hand, the door can be automatically closed, the door can be stopped after being opened to a certain degree, the door stop angle is adjustable, and the practicability is high.

Description

Novel stable damping door hinge

Technical Field

The utility model belongs to the activity adapting unit field, in particular to novel stable form damping hinge.

Background

A door hinge is a device that allows a door to be naturally and smoothly rotated to be opened and closed. The hinge is required to be used as a rotating part in the installation of the existing door, so the excellent degree of the hinge directly influences the quality and the service life of the whole door.

The existing door hinge generally has no damping effect, a door leaf is easy to move, impact and noise are caused, and meanwhile, potential safety hazards exist in the door leaf which is easy to move; meanwhile, the door leaf is easily influenced by inertia in the moving process, the speed is high, impact is easily generated, and the using effect of the door leaf is influenced. Accordingly, the present application has made innovations and improvements to the door hinge with respect to the above problems.

The existing door hinge mainly has the following problems:

1. the existing door hinge can not realize the locking function mostly, the door leaf is easy to move, impact and noise are caused, and meanwhile, potential safety hazards exist in the door leaf which is easy to move.

2. Most of the existing door hinges are easily influenced by inertia in the moving process, are high in speed and easy to generate impact, and influence the use effect of door leaves.

3. Most of the existing door hinges can only be opened or closed, the door stop cannot be realized, the door stop angle cannot be actively adjusted, and the practicability is poor.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects, the utility model aims to provide a novel stable damping door hinge which utilizes a self-locking mechanism to lock the hinge and prevent the door leaf from being automatically closed; meanwhile, the rotation of the hinge is buffered, so that the door is slowly closed, the impact force generated when the door leaf is closed is greatly relieved, and the mute degree and the safety of the door leaf are improved; on the other hand, the door can be automatically closed, the door can be stopped after being opened to a certain degree, the door stop angle is adjustable, and the practicability is high.

The technical scheme is as follows: in order to achieve the above object, the utility model provides a novel stable form damping hinge, include: first hinge, second hinge, damping fin, locking mechanism, release mechanism and buffer gear, first hinge is "concave" font, the second hinge is "protruding" font, first hinge is articulated with the second hinge, be provided with the damping fin on the first hinge, the damping fin is the arc, be provided with locking mechanism on the second hinge, locking mechanism corresponds with the damping fin, locking mechanism one side is provided with release mechanism, the inside buffer gear that is provided with of second hinge.

The locking mechanism in the utility model comprises a slider, a sliding sleeve, a compression roller, an elastic friction plate and a U-shaped bracket, wherein a gap is arranged in the slider, the gap corresponds to a damping sheet, a roller groove is arranged in the middle section of the slider, the roller groove is arranged on two sides of the gap, the compression roller is arranged in the roller groove, the compression roller protrudes out of the gap, the sliding sleeve is arranged outside the slider, the sliding sleeve is fixed on a second hinge, the slider is connected with the sliding sleeve in a sliding manner, one side of the sliding sleeve, which is close to the slider, is provided with a wedge surface, and the wedge surface can enable the compression roller to be folded when; the U-shaped support is arranged at one end of the sliding block and arranged on the second hinge, elastic friction plates are arranged on the inner side of the U-shaped support and are arranged in a plurality of numbers, the elastic friction plates are enclosed to form a notch, and the notch corresponds to the gap in the sliding block.

The utility model discloses in locking mechanism's setting, it utilizes self-locking mechanism to lock the hinge, prevents door leaf self-closing.

The utility model discloses in release mechanism include first wedge, second wedge, limiting plate and act as go-between, first wedge rigid coupling is on U type support, U type support slides with the second hinge and sets up, the one end and the slider contact of first wedge are kept away from to U type support, first wedge one side is provided with the second wedge, second wedge both sides are provided with the limiting plate, the limiting plate is fixed in on the second hinge, second wedge and limiting plate sliding connection, second wedge one end is provided with acts as go-between.

The utility model discloses in release mechanism's setting can the unblock fast, conveniently closes the door.

The utility model discloses in the second wedge keep away from the one end of acting as go-between and be provided with reset spring, reset spring one end sets up on the limiting plate.

The utility model discloses in first hinge on be provided with the rotating part, the rotating part is articulated with the second hinge, the rotating part is semi-oval, the one end shape and the rotating part cooperation that the second hinge is close to the rotating part.

The utility model discloses in buffer gear include movable part, fixed part and return spring, the inside fixed part that is provided with of second hinge, the inside return spring that is provided with of fixed part, return spring one end is provided with the movable part, movable part and fixed part sliding connection, return spring's one end and rotating part contact are kept away from to the movable part.

The utility model discloses in buffer gear's setting has cushioned the rotation of hinge, has realized slowly closing the door, has alleviated the impact force that produces when the door leaf is closed greatly, has improved the silence degree and the security of door leaf.

In the utility model, an adjusting mechanism is arranged between a first hinge and a second hinge, the adjusting mechanism comprises a damping device and a spring device, the damping device comprises a spring, a door closing speed adjusting screw, a ball base, a speed adjusting shaft, a first bearing, a one-way valve core, a piston, a throttling hole marble and a hydraulic cylinder cavity, the first bearing is fixed between the first hinge and the second hinge, the speed adjusting shaft is arranged in the first bearing, the speed adjusting shaft is hollow, the spring is arranged in the speed adjusting shaft, the door closing speed adjusting screw is arranged at one end of the spring, the door closing speed adjusting screw is arranged in the speed adjusting shaft, the door closing speed adjusting screw penetrates out of the top end of the speed adjusting shaft, the ball base is sleeved outside the speed adjusting shaft, the piston is arranged at the bottom of the speed adjusting shaft, the one-way valve core is arranged in the piston, the valve core of the one-way valve is arranged at the bottom of the speed regulating shaft, the valve core of the one-way valve is inserted into the piston, the bottom of the piston is provided with a throttling hole marble, and the outer side of the piston is provided with a hydraulic cylinder cavity; the spring device comprises a rotating shaft, a clutch sleeve, a torsion spring, a positioning pin, an adjusting pin and a second bearing, wherein the second bearing is fixed between the first hinge and the second hinge, the rotating shaft is arranged inside the second bearing, the rotating shaft is connected with the second hinge through the clutch sleeve, the clutch sleeve is provided with the positioning pin, the positioning pin is inserted into the clutch sleeve, the clutch sleeve is connected with the second hinge through the positioning pin, the torsion spring is arranged outside the rotating shaft, and the adjusting pin is arranged at the top of the rotating shaft.

The utility model discloses in adjustment mechanism's setting, it can still have the effect that the door stopped after the door is opened to the certain degree with door self-closing, and the door stops angularly adjustable moreover, and the practicality is high.

The utility model discloses in piston and pneumatic cylinder cavity pass through screw-thread fit.

When the door is closed, the two hinges form an angle of 180 degrees, the spring has no deformation, and the door is in a stable closing state; when the door is opened, the hinge is driven to rotate by the force of pushing the door, the spring is twisted and deformed, and meanwhile, the damping device matched with the spring device starts to operate; when the door is opened, the volume of the upper cavity of the hydraulic cylinder is reduced, and the volume of the lower cavity is increased, so that the pressure intensity of the upper cavity is increased, and the pressure intensity of the lower cavity is reduced. Because the total amount of hydraulic oil in the upper cavity and the lower cavity is constant, the hydraulic oil can flow from the upper cavity to the lower cavity under the driving of pressure difference, but at the moment, the valve core of the one-way valve blocks the orifice at the center of the bottom of the piston, and the orifice marble at the bottom of the small hole at the non-central position of the bottom of the piston is separated from the bottom of the piston under the pressure action of the hydraulic oil.

When the door is completely opened, the spring is completely compressed, the two hinges form a certain angle (the angle can be set by adjusting the clutch sleeve of the spring device according to needs), at the moment, the rotating shaft of the spring device is separated from the clutch sleeve, the hinge can not continue to rotate, the door leaf is in a stable state of complete opening, and the potential energy of the spring is maximum.

When the door is opened to a certain degree but does not reach the door stop position, or slightly pushes the door leaf from the door stop position to enable the door leaf to rotate by a certain angle, the clutch sleeve of the spring device is connected with the rotating shaft, the spring releases potential energy to drive the hinge and the door to rotate, and the effect of automatically closing the door is achieved. The door leaf and the door frame rotate relatively to drive the damping device to rotate relatively between the first hinge and the second hinge to drive the piston to move axially in the cavity, and the upper hinge and the lower hinge are fixed and the speed regulating part and the cavity matched with the upper hinge and the lower hinge are fixed, so that the speed regulating part and the piston only move relatively. Because the total amount of hydraulic oil in the upper cavity and the lower cavity is certain, the hydraulic oil can flow from the lower cavity to the upper cavity under the driving of the pressure difference. The hydraulic oil flows from the lower cavity to the upper cavity and has two oil paths, wherein the oil flows out through the bottom of the piston and the matching conical surface of the valve core of the one-way valve, and the oil flows through the throttling hole in the non-central position of the bottom of the piston. At the moment, the valve core of the one-way valve plugs the orifice in the center of the bottom of the piston, and simultaneously, under the action of oil pressure, steel balls on a channel in the non-central position of the bottom of the piston on the contact surface of the piston and the lower cavity are also pressed on the orifice in the bottom of the piston, so that hydraulic oil can only pass through the channel in the central position of the bottom of the piston, but certain conditions are required for the hydraulic oil to pass through. Under the action of oil pressure, the valve core of the one-way valve is pushed away, so that hydraulic oil can flow into the upper cavity from the lower cavity, and the aim of buffering is fulfilled. The flow rate can be controlled by adjusting the position of the valve core. When the door closing speed needs to be relatively slow, the door closing speed adjusting screw positioned on the upper hinge part can be adjusted by a screwdriver, so that the pretightening force of the spring connected with the valve core is increased, the acting force between the valve core and the bottom of the piston is increased, and the position of the valve core is lowered.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:

1. the utility model discloses in a novel stable form damping hinge, it utilizes self-locking mechanism to lock the hinge, prevents door leaf self-closing.

2. The utility model discloses in a novel stable form damping hinge, the rotation to the hinge has cushioned, has realized slowly closing the door, the impact force that produces when having alleviated the door leaf closure greatly has improved the silence degree and the security of door leaf.

3. The utility model discloses in a novel stable form damping hinge, it can still have the effect that the door stopped after the door is opened to a certain degree with door self-closing, the door stops angularly adjustable moreover, the practicality is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the locking mechanism and the unlocking mechanism of the present invention;

FIG. 3 is an enlarged schematic view of the locking mechanism of the present invention;

FIG. 4 is a side view of the overall structure of the present invention;

fig. 5 is a schematic structural view of the damping device of the adjusting mechanism of the present invention;

fig. 6 is a schematic structural view of the spring device of the adjusting mechanism of the present invention;

in the figure: a first hinge-1, a rotating part-11, a second hinge-2, a damping sheet-3, a locking mechanism-4, a sliding block-41, a sliding sleeve-42, a press roller-43, an elastic friction sheet-44, a U-shaped bracket-45, an unlocking mechanism-5, a first wedge-shaped block-51, a second wedge-shaped block-52, a limiting plate-53, a pull wire-54, a return spring-55, a buffer mechanism-6, a movable part-61, a fixed part-62, a return spring-63, an adjusting mechanism-7, a spring-71, a door closing speed adjusting screw-72, a ball base-73, a speed adjusting shaft-74, a first bearing-75, a one-way valve core-76, a piston-77, a throttling hole marble-78, a hydraulic cylinder cavity-79, a hydraulic cylinder, A rotating shaft-710, a clutch sleeve-711, a torsion spring-712, a positioning pin-713, an adjusting pin-714 and a second bearing-715.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

A novel stable damped door hinge, as shown in figures 1 and 4, includes: first hinge 1, second hinge 2, damping fin 3, locking mechanism 4, release mechanism 5 and buffer gear 6, first hinge 1 is "concave" font, second hinge 2 is "protruding" font, first hinge 1 is articulated with second hinge 2, be provided with damping fin 3 on the first hinge 1, damping fin 3 is the arc, be provided with locking mechanism 4 on the second hinge 2, locking mechanism 4 corresponds with damping fin 3, locking mechanism 4 one side is provided with release mechanism 5, the inside buffer gear 6 that is provided with of second hinge 2.

The locking mechanism 4 in this embodiment includes a slider 41, a sliding sleeve 42, a pressing roller 43, an elastic friction plate 44, and a U-shaped bracket 45, wherein a gap is provided in the slider 41, the gap corresponds to the damping plate 3, a roller groove is provided in the middle section of the slider 41, the roller groove is provided on both sides of the gap, the pressing roller 43 is provided in the roller groove, the pressing roller 43 protrudes out of the gap, the sliding sleeve 42 is provided on the outer side of the slider 41, the sliding sleeve 42 is fixed on the second hinge 2, the slider 41 is slidably connected to the sliding sleeve 42, an inclined wedge surface is provided on one side of the sliding sleeve 42 close to the slider 41, and the inclined wedge surface can enable the pressing roller 43 to be; one end of the sliding block 41 is provided with a U-shaped support 45, the U-shaped support 45 is arranged on the second hinge 2, an elastic friction plate 44 is arranged on the inner side of the U-shaped support 45, the elastic friction plates 44 are arranged in a plurality of numbers, the elastic friction plates 44 are enclosed to form a notch, and the notch corresponds to the gap in the sliding block 41.

In this embodiment, the unlocking mechanism 5 includes first wedge 51, second wedge 52, limiting plate 53 and acts as go-between 54, first wedge 51 rigid coupling is on U type support 45, U type support 45 slides with second hinge 2 and sets up, the one end and the slider 41 contact of first wedge 51 are kept away from to U type support 45, first wedge 51 one side is provided with second wedge 52, second wedge 52 both sides are provided with limiting plate 53, limiting plate 53 is fixed in on the second hinge 2, second wedge 52 and limiting plate 53 sliding connection, second wedge 52 one end is provided with acts as go-between 54.

In this embodiment, a return spring 55 is disposed at an end of the second wedge block 52 away from the pull wire 54, and an end of the return spring 55 is disposed on the limit plate 53.

In this embodiment, the first hinge 1 is provided with the rotating portion 11, the rotating portion 11 is hinged to the second hinge 2, the rotating portion 11 is semi-elliptical, and one end of the second hinge 2 close to the rotating portion 11 is shaped to be matched with the rotating portion 11.

The buffer mechanism 6 in this embodiment includes a movable portion 61, a fixed portion 62, and a return spring 63, the fixed portion 62 is provided inside the second hinge 2, the return spring 63 is provided inside the fixed portion 62, the movable portion 61 is provided at one end of the return spring 63, the movable portion 61 is slidably connected to the fixed portion 62, and one end of the movable portion 61, which is far away from the return spring 63, contacts the rotating portion 11.

In this embodiment, an adjusting mechanism 7 is disposed between the first hinge 1 and the second hinge 2, the adjusting mechanism 7 includes a damping device and a spring device, the damping device includes a spring 71, a door closing speed adjusting screw 72, a ball base 73, a speed adjusting shaft 74, a first bearing 75, a check valve spool 76, a piston 77, a throttling hole marble 78 and a hydraulic cylinder cavity 79, the first bearing 75 is fixed between the first hinge 1 and the second hinge 2, the speed adjusting shaft 74 is disposed inside the first bearing 75, the speed adjusting shaft 74 is hollow, the spring 71 is disposed inside the speed adjusting shaft 74, the door closing speed adjusting screw 72 is disposed at one end of the spring 71, the door closing speed adjusting screw 72 is disposed inside the speed adjusting shaft 74, the door closing speed adjusting screw 72 penetrates through the top end of the speed adjusting shaft 74, the ball base 73 is sleeved outside the speed adjusting shaft 74, a piston 77 is arranged at the bottom of the speed regulation shaft 74, a check valve core 76 is arranged in the piston 77, the check valve core 76 is arranged at the bottom of the speed regulation shaft 74, the check valve core 76 is inserted into the piston 77, a throttling hole marble 78 is arranged at the bottom of the piston 77, and a hydraulic cylinder cavity 79 is arranged outside the piston 77; the spring device comprises a rotating shaft 710, a clutch sleeve 711, a torsion spring 712, a positioning pin 713, an adjusting pin 714 and a second bearing 715, wherein the second bearing 715 is fixed between the first hinge 1 and the second hinge 2, the rotating shaft 710 is arranged inside the second bearing 715, the rotating shaft 710 is connected with the second hinge 2 through the clutch sleeve 711, the clutch sleeve 711 is provided with the positioning pin 713, the positioning pin 713 is inserted into the clutch sleeve 711, the clutch sleeve 711 is connected with the second hinge 2 through the positioning pin 713, the torsion spring 712 is arranged on the outer side of the rotating shaft 710, and the adjusting pin 714 is arranged at the top of the rotating shaft 710.

The piston 77 is shown in this embodiment as being threaded into the cylinder chamber 79.

Example 2

A novel stable damped door hinge, as shown in figures 2 and 3, includes: first hinge 1, second hinge 2, damping fin 3, locking mechanism 4, release mechanism 5 and buffer gear 6, first hinge 1 is "concave" font, second hinge 2 is "protruding" font, first hinge 1 is articulated with second hinge 2, be provided with damping fin 3 on the first hinge 1, damping fin 3 is the arc, be provided with locking mechanism 4 on the second hinge 2, locking mechanism 4 corresponds with damping fin 3, locking mechanism 4 one side is provided with release mechanism 5, the inside buffer gear 6 that is provided with of second hinge 2.

Example 3

A novel stable damped door hinge as shown in fig. 2, comprising: first hinge 1, second hinge 2, damping fin 3, locking mechanism 4, release mechanism 5 and buffer gear 6, first hinge 1 is "concave" font, second hinge 2 is "protruding" font, first hinge 1 is articulated with second hinge 2, be provided with damping fin 3 on the first hinge 1, damping fin 3 is the arc, be provided with locking mechanism 4 on the second hinge 2, locking mechanism 4 corresponds with damping fin 3, locking mechanism 4 one side is provided with release mechanism 5, the inside buffer gear 6 that is provided with of second hinge 2.

Example 4

A novel stable damped door hinge as shown in fig. 4, comprising: first hinge 1, second hinge 2, damping fin 3, locking mechanism 4, release mechanism 5 and buffer gear 6, first hinge 1 is "concave" font, second hinge 2 is "protruding" font, first hinge 1 is articulated with second hinge 2, be provided with damping fin 3 on the first hinge 1, damping fin 3 is the arc, be provided with locking mechanism 4 on the second hinge 2, locking mechanism 4 corresponds with damping fin 3, locking mechanism 4 one side is provided with release mechanism 5, the inside buffer gear 6 that is provided with of second hinge 2.

Example 5

A novel stable damped door hinge, as shown in figures 5 and 6, includes: first hinge 1, second hinge 2, damping fin 3, locking mechanism 4, release mechanism 5 and buffer gear 6, first hinge 1 is "concave" font, second hinge 2 is "protruding" font, first hinge 1 is articulated with second hinge 2, be provided with damping fin 3 on the first hinge 1, damping fin 3 is the arc, be provided with locking mechanism 4 on the second hinge 2, locking mechanism 4 corresponds with damping fin 3, locking mechanism 4 one side is provided with release mechanism 5, the inside buffer gear 6 that is provided with of second hinge 2.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel stable form damping door hinge which characterized in that: the method comprises the following steps: first hinge (1), second hinge (2), damping fin (3), locking mechanism (4), release mechanism (5) and buffer gear (6), first hinge (1) is "concave" font, second hinge (2) is "protruding" font, first hinge (1) is articulated with second hinge (2), be provided with damping fin (3) on first hinge (1), damping fin (3) are the arc, be provided with locking mechanism (4) on second hinge (2), locking mechanism (4) correspond with damping fin (3), locking mechanism (4) one side is provided with release mechanism (5), second hinge (2) inside is provided with buffer gear (6).

2. A novel stable form damped door hinge according to claim 1, wherein: the locking mechanism (4) comprises a sliding block (41), a sliding sleeve (42), a pressing roller (43), an elastic friction plate (44) and a U-shaped support (45), a gap is formed in the sliding block (41), the gap corresponds to the damping sheet (3), a roller groove is formed in the middle section of the sliding block (41), the roller groove is formed in two sides of the gap, the pressing roller (43) is arranged in the roller groove, the pressing roller (43) protrudes out of the gap, the sliding sleeve (42) is arranged on the outer side of the sliding block (41), the sliding sleeve (42) is fixed on the second hinge (2), the sliding block (41) is connected with the sliding sleeve (42) in a sliding mode, an inclined wedge surface is arranged on one side, close to the sliding block (41), of the sliding sleeve (42), and the inclined wedge surface can enable the pressing roller (43; slider (41) one end is provided with U type support (45), U type support (45) set up on second hinge (2), U type support (45) inboard is provided with elastic friction piece (44), elastic friction piece (44) are provided with a plurality ofly, elastic friction piece (44) enclose and form the notch, the notch corresponds with the gap in slider (41).

3. A novel stable form damped door hinge according to claim 2, wherein: unlocking mechanism (5) include first wedge (51), second wedge (52), limiting plate (53) and act as go-between (54), first wedge (51) rigid coupling is on U type support (45), U type support (45) slide with second hinge (2) and set up, the one end and the slider (41) contact of first wedge (51) are kept away from in U type support (45), first wedge (51) one side is provided with second wedge (52), second wedge (52) both sides are provided with limiting plate (53), limiting plate (53) are fixed in on second hinge (2), second wedge (52) and limiting plate (53) sliding connection, second wedge (52) one end is provided with act as go-between (54).

4. A novel stable form damped door hinge according to claim 3, wherein: one end, far away from the pull wire (54), of the second wedge-shaped block (52) is provided with a return spring (55), and one end of the return spring (55) is arranged on the limiting plate (53).

5. A novel stable form damped door hinge according to claim 1, wherein: first hinge (1) on be provided with rotating part (11), rotating part (11) are articulated with second hinge (2), rotating part (11) are semi-ellipse, one end shape and rotating part (11) cooperation that second hinge (2) are close to rotating part (11).

6. A novel stable form damped door hinge according to claim 5, characterized in that: buffer gear (6) including movable part (61), fixed part (62) and return spring (63), inside fixed part (62) that is provided with of second hinge (2), inside return spring (63) that is provided with of fixed part (62), return spring (63) one end is provided with movable part (61), movable part (61) and fixed part (62) sliding connection, the one end and the rotating part (11) contact that return spring (63) were kept away from in movable part (61).

7. A novel stable form damped door hinge according to claim 1, wherein: the door closing mechanism is characterized in that an adjusting mechanism (7) is arranged between the first hinge (1) and the second hinge (2), the adjusting mechanism (7) comprises a damping device and a spring device, the damping device comprises a spring (71), a door closing speed adjusting screw (72), a ball base (73), a speed adjusting shaft (74), a first bearing (75), a one-way valve spool (76), a piston (77), a throttling hole marble (78) and a hydraulic cylinder cavity (79), the first bearing (75) is fixed between the first hinge (1) and the second hinge (2), the speed adjusting shaft (74) is arranged inside the first bearing (75), the speed adjusting shaft (74) is hollow, the spring (71) is arranged inside the speed adjusting shaft (74), the door closing speed adjusting screw (72) is arranged at one end of the spring (71), and the door closing speed adjusting screw (72) is arranged inside the speed adjusting shaft (74), the door closing speed adjusting screw (72) penetrates through the top end of the speed regulating shaft (74), a ball base (73) is sleeved on the outer side of the speed regulating shaft (74), a piston (77) is arranged at the bottom of the speed regulating shaft (74), a one-way valve core (76) is arranged inside the piston (77), the one-way valve core (76) is arranged at the bottom of the speed regulating shaft (74), the one-way valve core (76) is inserted into the piston (77), a throttling hole marble (78) is arranged at the bottom of the piston (77), and a hydraulic cylinder cavity (79) is arranged on the outer side of the piston (77); the spring device comprises a rotating shaft (710), a clutch sleeve (711), a torsion spring (712), a positioning pin (713), an adjusting pin (714) and a second bearing (715), wherein the second bearing (715) is fixed between the first hinge (1) and the second hinge (2), the rotating shaft (710) is arranged inside the second bearing (715), the rotating shaft (710) is connected with the second hinge (2) through the clutch sleeve (711), the positioning pin (713) is arranged on the clutch sleeve (711), the positioning pin (713) is inserted into the clutch sleeve (711), the clutch sleeve (711) is connected with the second hinge (2) through the positioning pin (713), the torsion spring (712) is arranged on the outer side of the rotating shaft (710), and the adjusting pin (714) is arranged at the top of the rotating shaft (710).

8. A novel stable form damped door hinge according to claim 7, characterized in that: the piston (77) is matched with the hydraulic cylinder cavity (79) through threads.