CN201326333Y

CN201326333Y - Hinge

Info

Publication number: CN201326333Y
Application number: CNU2008201831572U
Authority: CN
Inventors: 沈锡鹤
Original assignee: Zhejiang Henghui Metal Products Co Ltd
Current assignee: Zhejiang Henghui Metal Products Co Ltd
Priority date: 2008-12-19
Filing date: 2008-12-19
Publication date: 2009-10-14
Anticipated expiration: 2018-12-19

Abstract

The utility model relates to a hinge, which comprises a fixed hinge part which is fixedly arranged on a fixed object close to the lower parts or the upper parts of doors and windows and a movable hinge part which is fixedly arranged on the doors and the windows, and also comprises a hinge axis and a damper, wherein one end of the hinge axis is rotatably connected with the fixed hinge part, and the other end thereof is fixedly connected with the movable hinge part; the damper is used for allowing the doors and windows to be closed automatically and slowly, and the damper is provided with a cylindrical body and a relatively-telescopic push-pull rod extending from one end of the cylindrical body; the two ends of the damper are respectively formed by the free ends of the cylindrical body and the push-pull rod, and one end of the damper is hinged with a relatively-fixed part of the fixed hinge part; and the other end of the damper is hinged with an extended force arm perpendicular to the axial line of the hinge axis on the hinge axis. The utility model provides a hinge which is suitable for being installed above and / or below the doors and windows, and can adjust and control the closing speed of the windows and the doors, so that the doors and the windows can be closed automatically, slowly, gently and humanizedly.

Description

A kind of hinge

Technical field

The utility model relates to a kind of hinge.Specifically a kind of hinge that has damper that is adapted to be mounted to the top and/or the below of bar.

Background technology

In the prior art, the widespread usage hinge is easy to open or closes the doors and windows, general hinge is installed on a side of door and window, be the left side or the right side of door and window, its basic structure comprises moving hinge, decides hinge and hinge axis, decide hinge and be fixedly installed on doorframe and window frame or other fixed object, moving hinge is fixedly mounted on the bar, moving hinge with decide hinge and be connected rotationally by hinge axis.But in some cases, the left side of some door and windows and right side do not have doorframe and window frame or other to be used to install the fixed object of deciding hinge, and must be installed on hinge the upper end and/or the lower end of door and window this moment, and above-mentioned in this case hinge just can not use.For example, the plug-type frameless glass door of installing and using for places such as company, market or bathrooms, usually be not have doorframe or other that fixed object of hinge can be installed in the left and right sides of glass door, the consideration of use and safety durable for convenience, generally hinge is installed respectively in the top and bottom of door, Chinese patent literature CN2416202Y for example also has hinge only is installed in the upper end of door, for example Chinese patent literature CN2773275Y.But when needs were shut door and window, these were installed on the upper end of door and window and/or the hinge of lower end can not make door and window close automaticly, slow.At this moment, do not produce noise when making that door and window is closed, speed is clashed into too soon when avoiding door and window to close; Usually a way of taking is that a door closer is installed on hinged basis again, can control the speed that door and window is closed like this; But the door closer of increase installing makes that installation difficulty strengthens, installation steps increase, and door closer takies bigger space, also can increase customer's cost simultaneously.

The utility model content

For this reason, technical problem to be solved in the utility model is to provide a kind of hinge that is adapted to be mounted within the top and/or the below of door and window, can regulate and control the speed that door and window is closed, make door and window can be slow, soft when needs are closed and hommization ground close automatically.

For solving the problems of the technologies described above, the utility model is achieved by the following technical solution: a kind of hinge, and it comprises and being fixedly installed near deciding hinge fraction and being fixedly installed in moving hinge fraction on the door and window on the fixed object of one of door and window below or top; It is characterized in that, also comprise:

A hinge axis, the one end decides with described that hinge fraction is rotationally connected, the other end is fixedlyed connected with described moving hinge fraction;

One is used to damper that the door and window automatic slowly is closed, described damper has a cylindrical body and stretches out from described cylindrical body one end, can relative flexible pull bar, the free end of described cylindrical body and described pull bar constitutes the two ends of described damper respectively; One end of described damper and described to decide the relatively-stationary parts of hinge fraction hinged, the arm of force that stretches out perpendicular to the axis of described hinge axis (23) on the other end and the described hinge axis is hinged.

Above-mentioned hinge, the described arm of force is in the position over against described damper when door leaf cuts out.

Above-mentioned hinge also comprises making described hinge axis arrive certain position and static hinge axis detent mechanism.

Above-mentioned hinge, described hinge axis detent mechanism comprises:

With integrated one or two the symmetrically arranged fin of described hinge axis;

Take shape in and describedly decide to take shape in the described chamber of deciding on the hinge fraction with described fin cooperating on the hinge fraction, be arranged on block and the elastomeric element between described chamber inner wall and described block in the described chamber, the part of described block is suitable for stretching out to cooperate with described fin from described chamber.

Above-mentioned hinge is describedly decided hinge fraction and is comprised a hinge box, and panel and installing plate rotation that described hinge axis passes described hinge box are installed in the hinge axis jack.

Above-mentioned hinge, described damper comprises:

A cylinder body, described cylinder body has at least one openend;

Cylinder body covers, and seals the openend of described cylinder body, to form sealed chamber in described cylinder body, forms through hole on the end face of one of them described cylinder body lid;

The through hole that a pull bar, one end pass on the end face of described cylinder body lid stretches in the described cylinder body;

A piston is installed in described pull bar and stretches on the end in the described cylinder body, and described sealed chamber is divided into two parts, and can be along described inboard wall of cylinder block back and forth movement hermetically; And

A biasing member is arranged between described piston and the described cylinder body, to described piston provide along described Boring mill to the answer biasing force;

Described piston is provided with circulation one way valve and current-limiting apparatus, described circulation one way valve limits in the second portion of described sealed chamber that resisting medium in the described sealed chamber can only flow to described piston opposite side in the first of the described sealed chamber of described piston one side, and described current-limiting apparatus limits the flow rate of resisting medium between two parts of described sealed chamber.

Exceed opening or allow the direction of liquid flow and the opposite Check valve of current limiter of direction of described circulation one way valve permission liquid flow of above-mentioned hinge, described current-limiting apparatus.

Above-mentioned hinge, described biasing member are the helical spring that is arranged between described piston and the described cylinder body lid.

Above-mentioned hinge, described piston comprises

Piston only, described piston only have a cylinder side wall and are arranged on the next door of described cylinder side wall middle part radial arrangement, and described next door is provided with described circulation one way valve and described current-limiting apparatus; And

Described circulation one way valve comprises first valve opening of the part taper that is molded on the described next door, be arranged on the valve ball in described first valve opening, first piston lid on end that is fixedly installed on described piston only with through hole, and be arranged on spring between described first piston lid and the described valve ball;

Be provided with a slit that is used for the resisting medium circulation between described first piston lid and the described next door.

Above-mentioned hinge, described pull bar covers by being fixedly attached to described first piston, is connected with described piston; The described through hole that described first piston covers is to be arranged on the resisting medium passage that described pull bar closes on an end of described first piston lid, and an end of described resisting medium passage is communicated with corresponding described sealed chamber by the sidewall of described pull bar; The other end of described resisting medium passage is communicated with the slit that is used for the hydraulic fluid circulation between described first piston lid and the described next door.

Above-mentioned hinge, described current-limiting apparatus comprises second valve opening of the part taper that is molded on the described next door, the tapered direction of described second valve opening is opposite with the tapered direction of described first valve opening, be arranged on the valve ball in described second valve opening, second piston cap on other end that is fixedly installed on described piston only with through hole, and be arranged on spring between described second piston cap and the described valve ball;

Be provided with a slit that is used for the hydraulic fluid circulation between described second piston cap and the described next door.

Above-mentioned hinge, described pull bar is connected with described piston by being fixedly attached on described first piston lid or described second piston cap; Described through hole on described first piston lid or described second piston cap is to be arranged on the resisting medium passage that described pull bar closes on an end of described piston, and an end of described resisting medium passage is communicated with corresponding described sealed chamber by the sidewall of described pull bar; The other end of described resisting medium passage is communicated with the slit that is used for the resisting medium circulation between described first piston lid or described second piston cap and the described next door.

Above-mentioned hinge, described cylinder body lid comprises seal cover and fixed cap; Be provided with sealing ring between the inner surface of described seal cover external surface and described cylinder ends corresponding position; The external surface of described fixed cap inner surface and described cylinder ends corresponding position is provided with screw thread, so that described fixed cap fixes with the corresponding end thread of described cylinder body, and described seal cover is pressed in the corresponding end of described cylinder body.

Above-mentioned hinge, in forming the described cylinder body lid of through hole, also comprise pull bar sealed screw cover and pull bar sealing ring, the through hole of described seal cover has radially inwardly outstanding boss near an end parts of described sealed chamber, and be provided with the internal thread that matches with the external screw thread of described pull bar sealed screw cover away from the inwall of an end parts of described sealed chamber, described pull bar sealing ring is between described pull bar sealed screw cover and described seal cover, along with described pull bar sealed screw cover is tightened towards described seal cover, described pull bar sealing ring forms the sealing between described pull bar and described pull bar sealed screw cover and the seal cover.

Technique scheme of the present utility model has the following advantages compared to existing technology: (1) is because the utility model has top and/or the below that the hinge of damper is fit to be installed in door, make hinge have the effect of door closer concurrently, can accurately regulate and the control speed of closing the door, make door can be slow, soft when needs are closed and hommization ground close automatically, and simple in structure, handling ease, saving space, can also reduce the cost simultaneously, reduce installation steps.(2) damper of the utility model hinge makes that the overall structure of hinge is fairly simple because circulation one way valve and current-limiting apparatus are set on described piston, and the glide path of resisting medium is also fairly simple, and production and processing is easy.(3) described current-limiting apparatus adopts Check valve of current limiter, can more accurately regulate and control the size of resisting medium to described piston damping action when being convenient to production and processing, better by the described piston of design control slowly, mildly return; Thereby make it possible to accurately regulate and the control speed of closing the door, make door can be slow, soft and hommization ground close automatically.(4) structure that the resisting medium passage is set in the structure that is connected with piston by piston cap of pull bar and the pull bar makes that the damper structure of hinge is compact more, is convenient to the integrally-built miniaturization of hinge.(5) the hinge axis detent mechanism of She Zhiing makes and locatees and transfixion automatically after door is opened, and when the needs door was closed, firmly revolving door can make an automatic slowly, mildly close; Be symmetrical arranged two fins on the described hinge axis, make and to realize all when door inwardly or is outwards opened that door leaf opens later location.(6) the described arm of force is in the position over against described pull bar when door leaf cuts out, makes that the structure of hinge is more reasonable, and is easy for installation.(7) described hinge axis passes the panel of described hinge box and the installing plate rotation is installed in the hinge axis jack, even make that hinge axis also is not easy to swing under the heavier situation of door leaf in rotating process.

Description of drawings

For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below

Fig. 1 is the structural representation of the damper of the utility model hinge;

Fig. 2 is the another kind of structural representation of the damper of the utility model hinge shown in Figure 1;

Fig. 3 is the another kind of structural representation of the damper of the utility model hinge shown in Figure 1;

Fig. 4 is the another kind of structural representation of the damper of the utility model hinge;

Fig. 5 is the another kind of structural representation of the damper of the utility model hinge shown in Figure 4;

Fig. 6 is the structural representation of cross section of piston of the damper of Fig. 1 and the utility model hinge shown in Figure 4;

Fig. 7 is the structural representation of longitudinal section of piston of the damper of the utility model hinge shown in Figure 1;

Fig. 8 is the structural representation of another kind of longitudinal section of piston of the damper of the utility model hinge shown in Figure 4;

Fig. 9 is the structural representation of another kind of longitudinal section of piston of the damper of the utility model hinge shown in Figure 4;

Figure 10 is the structural representation of another kind of longitudinal section of piston of the damper of the utility model hinge shown in Figure 1;

Figure 11 is the another kind of structural representation of the damper of the utility model hinge shown in Figure 4;

Figure 12 is the structural representation of the utility model hinge;

Figure 13 be the utility model hinge another kind of structural representation.

Reference numeral is expressed as among the figure: 1-pull bar termination, 2-pull bar, 3-back-moving spring, 4-first piston lid, the 5-sealing ring, 6-piston only, 7-second piston cap, 8-left side fixed cap, 9-pull bar sealed screw cover, 10-left side seal cover, 11-pull bar sealing ring, 12-cylinder body, 13-right side fixed cap, 14-right side seal cover, 151-current limliting through hole, 152-Check valve of current limiter, the 16-one way valve that circulates, the 17-valve ball, the 18-hydraulic oil channel, 19-spring, 20-damper, 21-decides hinge fraction, and 22-moves hinge fraction, the 23-hinge axis, the 231-fin, 24-cylindrical body, 25-chamber, the 26-block, 27-elastomeric element, the 28-arm of force, the 29-cushion pad, 30-pressing plate, 31-latch, 32-axle screw, the little pressing plate of 33-, 34-panel, the 35-installing plate, 36-hinge axis jack, 37-hinge box.

The specific embodiment

Shown in Figure 12-13, the hinge of present embodiment is applied on the glass door, it comprises and being fixedly installed near deciding hinge fraction 21 and being fixedly installed in moving hinge fraction 22 on the door on the fixed object of student side, and described moving hinge fraction 22 also comprises the cushion pad 29 that is installed in the door leaf both sides and is pressed in pressing plate 30 on the described cushion pad 29; A hinge axis 23, the one end decides with described that hinge fraction 21 is rotationally connected, the other end is fixedlyed connected with described moving hinge fraction 22; One is used to damper 20 that an automatic slowly is closed, with described decide hinge fraction 21 hinged, the pull bar termination 1 of the pull bar 2 that the other end stretches out is hinged by the arm of force 28 that stretches out perpendicular to the axis of described hinge axis 23 on axle screw 32 and the described hinge axis 23 by latch 31 for one end of described damper 20; The described arm of force 28 is in when door leaf cuts out over against the position of described pull bar 2.Also comprise and to make described hinge axis 23 turn to certain position and static hinge axis detent mechanism; Described hinge axis detent mechanism comprises and described hinge axis 23 integrated one or two symmetrically arranged fins 231, be arranged on and describedly decide to take shape in the described chamber of deciding on the hinge fraction 21 25 with described fin 231 cooperatings on the hinge fraction 21, be arranged on block 26 and the elastomeric element 27 between described chamber 25 inwalls and described block 26 in the described chamber 25, described in the present embodiment elastomeric element 27 is a block rubber, the part of described block 26 is suitable for stretching out to cooperate with described fin 231 from described chamber 25, and the top of described chamber 25 is sealed with little pressing plate 33.Describedly decide hinge fraction 21 and comprise a hinge box 37, panel 34 and installing plate 35 rotations that described hinge axis 23 passes described hinge box 37 are installed in the hinge axis jack 36.

The structure of described damper 20 such as Fig. 4, Fig. 5, Fig. 6, Fig. 8 and shown in Figure 11 comprise cylinder body 12, pull bar 2 and piston, and described cylinder body 12 has two openends.Wherein said cylinder body 12 right openings ends seal with right side cylinder body lid, described cylinder body lid comprises right side fixed

cap

13 and 14 sealings of right side seal cover, the right-hand member of described right side seal cover 14 forms radially outward outstanding flange, is provided with sealing ring 5 between the inner surface of described right side seal cover 14 external surfaces and described cylinder body 12 end corresponding positions; The external surface of described right side fixed cap 13 inner surfaces and described cylinder body 12 end corresponding positions is provided with screw thread, so that right side fixed cap 13 is fixed with the corresponding end thread of described cylinder body 12, and form the cooperating of end of radially outward outstanding described flange and described cylinder body 12 right openings ends by the right-hand member of described right side seal cover 14, described right side seal cover 14 is pressed in described cylinder body 12 right parts.Described cylinder body 12 left side openends are formed the left side cylinder body lid sealing of through hole on the end face.In described cylinder body 12, form sealed chamber like this.Described left side cylinder body lid comprises left side seal cover 10, left side fixed cap 8, forms externally threaded pull bar sealed screw cover 9, pull bar sealing ring 11; The left end of described left side seal cover 10 forms radially outward outstanding flange, is provided with sealing ring 5 between the inner surface of described left side seal cover 10 external surfaces and described cylinder body 12 end corresponding positions; The external surface of described left side fixed cap 8 inner surfaces and described cylinder body 12 end corresponding positions is provided with screw thread, so that described left side fixed cap 8 is fixed with the corresponding end thread of described cylinder body 12, and form the cooperating of end of radially outward outstanding described flange and described cylinder body 12 left side openends by the right-hand member of described left side seal cover 10, described left side seal cover 10 is pressed in described cylinder body 12 left parts; The through hole of described left side seal cover 10 has radially inwardly outstanding boss near an end parts of described sealed chamber, and be provided with the internal thread that matches with the external screw thread of described pull bar sealed screw cover 9 away from the inwall of an end parts of described sealed chamber, described pull bar sealing ring 11 is between described pull bar sealed screw cover 9 and described left side seal cover 10, along with described pull bar sealed screw cover 9 is tightened towards described left side seal cover 10, described pull bar sealing ring 11 form described pull bars 2 and described pull bar sealed screw overlap 9 and left side seal cover 10 between sealing.Described piston comprises piston only 6, circulation one way valve 16 and current-limiting apparatus; Described piston only 6 has a cylinder side wall and is arranged on the next door of described cylinder side wall middle part radial arrangement, and described next door is provided with described circulation one way valve 16 and described current-limiting apparatus; Described circulation one way valve 16 comprises four first valve openings that are molded over the part taper on the described next door, be arranged on the valve ball 17 in described first valve opening, second piston cap 7 on end that is fixed on described piston only 6 by being threaded with through hole, and be arranged on spring 19 between described second piston cap 7 and the described valve ball 17, be provided with a slit that is used for the hydraulic oil circulation between described second piston cap 7 and the described next door; Described current-limiting apparatus comprises second valve opening that is molded over the part taper on the described next door, the tapered direction of described second valve opening is opposite with the tapered direction of described first valve opening, be arranged on the valve ball 17 in described second valve opening, first piston lid 4 on other end that is fixedly installed on described piston only 6 by being threaded with through hole, and be arranged on spring 19 between described first piston lid 4 and the described valve ball 17, be provided with one between described first piston lid 4 and the described next door and be used for the slit that hydraulic fluid circulates.One end of pull bar 2 passes described left side fixed cap 8 successively, left side seal cover 10 and pull bar sealed screw cover 9, pull bar sealing ring 11 stretches in the described cylinder body 12 and described second piston cap 7 is fixedlyed connected by screw thread, thereby realize being connected with described piston, the end that described pull bar 2 closes on described piston is provided with hydraulic oil channel 18, the sidewall of one end of described hydraulic oil channel 18 by described pull bar 2 is communicated with described pull bar 2 residing sealed chamber, and the other end of described hydraulic oil channel 18 is communicated with and is used for the slit that hydraulic oil circulates between described second piston cap 7 and the described next door.Described in the present embodiment biasing member is the back-moving spring 3 that is arranged between piston and the left side seal cover 10, the length of preferred back-moving spring 3 is poor more than or equal to the length of described sealed chamber and described piston axial length, make damper work better and play a role, the diameter of preferred described back-moving spring 3 is slightly less than the internal diameter of described cylinder body 12, directly places described cylinder body 12 so that described back-moving spring 3 two ends need not be fixed.

As shown in Figure 4, when door leaf was opened, hinge axis 23 turned to and pushes described block 26 when fin 231 contacts with block 26, thus compressing elastomeric element 27; Along with door leaf is rotated further, described fin 231 crosses that described block 26 arrives its opposite sides and the location of realizing door leaf; Simultaneously, hinge axis 23 drives pull bar 2 motions by the arm of force 28, make piston to the left seal cover 10 directions move and compression reseting spring 3, hydraulic oil between piston and the left side seal cover 10 in the sealed chamber enters slit between second piston cap 7 and the compartment by hydraulic oil channel 18, and then the valve ball 17 in the extruding circulation one way valve 16 makes it to compress spring 19, open through hole, thereby hydraulic oil enters the sealed chamber between piston and the right side seal cover 14; And the valve ball 17 in the Check valve of current limiter 152 is subjected to the extruding of hydraulic oil, thereby the through hole on the shutoff compartment can not pass through hydraulic oil.As shown in Figure 5, when door leaf cuts out, firmly backward rotation hinge axis 23 makes described fin 231 cross described block 26, remove external force, this moment under the effect of back-moving spring 3, piston slowly and mildly along Boring mill to the right seal cover 14 move, hydraulic oil between piston and the right side seal cover 14 sealed chamber in pushes the valve ball 17 in the one way valve 16 that circulates, thereby the through hole on the shutoff compartment can not pass through hydraulic oil from circulation one way valve 16; And the valve ball 17 in the Check valve of current limiter 152 is subjected to the extruding of hydraulic oil, thereby compression spring 19, and then open through hole, the hydraulic oil between piston and the right side seal cover 14 in the sealed chamber can only be successively enters in the sealed chamber between piston and the left side seal cover 10 through slit, hydraulic oil channel 18 between slit, Check valve of current limiter 152, second piston cap 7 and the compartment between first piston lid 4 and the compartment.

Therefore, in hinge of the present utility model, because the utility model has top and/or below that the hinge of damper is fit to be installed in door, make hinge have the effect of hinge concurrently, can accurately regulate and the control speed of closing the door, make door can be slow, soft when needs are closed and hommization ground close and simple in structure, handling ease, saving space automatically, can also reduce the cost simultaneously, reduce installation steps.The described arm of force 28 is in when door leaf cuts out over against the position of described pull bar 2, makes that the structure of hinge is more reasonable, and is easy for installation.Panel 34 and installing plate 35 rotations that described hinge axis 23 passes described hinge box are installed in the hinge axis jack 36, even make that hinge axis 23 also is not easy to swing under the heavier situation of door leaf in rotating process.When piston is along the described back-moving spring 3 of described cylinder body 12 axial compression under external force, circulation one way valve 16 is all opened, hydraulic oil flow to sealed chamber between piston and the right side seal cover 14 from the sealed chamber between piston and the left side seal cover 10 with comparalive ease, this moment, hydraulic oil was less to the damping action of piston, and less external force can make piston move; After removing external force, circulation one way valve 16 Close Alls, Check valve of current limiter 152 is opened, hydraulic oil is relatively difficult from the sealed chamber that the sealed chamber between piston and the right side seal cover 14 flow between piston and the left side seal cover 10, this moment, hydraulic oil was bigger to the damping action of piston, thereby realized that piston slowly, mildly reset.Damper 20 handling eases that present embodiment is used, simple in structure, can accurately regulate and control the size of hydraulic oil to described piston damping action, according to the described damper 20 concrete occasion differences of using, can be by quantity of regulating circulation one way valve 16 and Check valve of current limiter 152 and the aperture that allows hydraulic oil to pass through, thereby accurately regulate and control the size of hydraulic oil to described piston damping action, and removing the external force that is applied on the described pull bar, when back-moving spring 3 provides along the axial elastic force of described cylinder body 12 to described piston, make described piston slow, mildly return.In the present embodiment, described current-limiting apparatus is a Check valve of current limiter 152, described Check valve of current limiter 152 allows the direction of liquid flow to allow the direction of liquid flow opposite with described circulation one way valve 16, make it possible to more accurately regulate and control the size of hydraulic oil to described piston damping action, and remove the external force that is applied on the described pull bar 2, back-moving spring 3 to described piston provide along described Boring mill to back stretch the time, control described piston better slowly, mildly return.In addition, described circulation one way valve 16 and Check valve of current limiter 152 are made of valve opening and the spring 19 and the valve ball 17 that are arranged in the valve opening, make it possible to more accurately control amount, thereby more accurately regulate and control the size of hydraulic oil described piston damping action through the hydraulic oil of valve opening.In some other embodiment, describedly decide hinge fraction 21 and also can be installed on the fixed object of a top, at this moment, can realize the purpose of the invention equally so that described hinge axis 23 is decided being rotationally connected of hinge fraction 21 and is suitable for bearing certain weight with described.

In the utility model, the structure of described damper 20 can also be as Fig. 1, Fig. 2, Fig. 3, Fig. 6 and shown in Figure 7.At this, and a difference of the described damper 20 of the foregoing description is that back-moving spring 3 is arranged between piston and the right side seal cover 10; The another one difference is that conversion has taken place structure of piston, thereby make the flow direction of the hydraulic oil that circulation one way valve 16 and Check valve of current limiter 152 allow and the structure of first piston lid 4 and second piston cap 7 that variation also take place, described pull bar 2 and first piston lid 4 is fixedlyed connected by screw thread, and all the other are all identical.

As shown in Figure 2, pull bar 2 make piston to the right seal cover 14 directions move and compression reseting spring 3, valve ball 17 in the hydraulic oil extruding circulation one way valve 16 between piston and the right side seal cover 14 in the sealed chamber makes it to compress spring 19, and then open through hole, hydraulic oil enters hydraulic oil channel 18 by the slit between first piston lid 4 and the compartment, enters the sealed chamber between piston and the left side seal cover 10 at last; And the valve ball in the Check valve of current limiter 152 is subjected to the extruding of hydraulic oil, thereby the through hole on the shutoff compartment can not pass through hydraulic oil.As shown in Figure 3, when door is closed, under the effect of back-moving spring 3, piston slowly and mildly moves along described cylinder body 12 axial left side seal covers 10, valve ball in the hydraulic oil extruding circulation one way valve 16 between piston and the left side seal cover 10 in the sealed chamber, thereby the through hole on the shutoff compartment can not pass through hydraulic oil from circulation one way valve 16; And the valve ball 17 in the Check valve of current limiter 152 is subjected to the extruding of hydraulic oil, compression spring 19, and then open through hole, the hydraulic oil between piston and the left side seal cover 10 in the sealed chamber can only pass through slit between hydraulic oil channel 18, Check valve of current limiter 152, second piston cap 7 and the compartment successively and enter in the sealed chamber between piston and the right side seal cover 14.Because above-mentioned variation has taken place in the structure of damper 20, can adopt multiple means, position relation between pin joint by adjusting described hinge axis 23, described pull bar 2 and the described arm of force 28, described damper 20 and the described pin joint three who decides hinge fraction 21 makes that the biasing force of back-moving spring 3 generations can make door leaf close automatically door is opened after.

The described piston that the described damper 20 of hinge described in the utility model uses also can be a structure as shown in figure 10, the described current-limiting apparatus opening 151 that exceeds, during compression reseting spring 3, hydraulic oil flows to the seal chamber of the opposite side of piston simultaneously from circulate one way valve 16 and current limliting through hole 151, described second piston cap 7 can not have yet, and this spline structure is simple more, processing is more prone to.The described piston that the described damper 20 of hinge described in the utility model uses can also be a structure as shown in Figure 9, the described current-limiting apparatus opening 151 that exceeds, hydraulic oil flow to the seal chamber of the opposite side of piston simultaneously from circulation one way valve 16 and current limliting through hole 151.Make remove the external force that is applied on the described pull bar 2, biasing member to described piston provide along described Boring mill to the answer biasing force time, hydraulic oil only enters in the sealed chamber of described piston opposite side by described current limliting through hole 151, make that described structure of piston is simpler, be more prone to processing.Can accurately regulate and control the size of hydraulic oil equally to described piston damping action, and removing the external force that is applied on the described pull bar 2, biasing member when described piston provides along the axial answer biasing force of described cylinder body 12, making described piston slowly, mildly return.In addition, also can be according to the occasion difference of concrete application, by quantity of regulating circulation one way valve 16 and current limliting through hole 151 and the aperture that allows hydraulic oil to pass through, thereby accurately regulate and control the size of hydraulic oil to described piston damping action, and removing the external force that is applied on the described pull bar 2, biasing member when described piston provides along the axial answer biasing force of described cylinder body 12, making described piston slowly, mildly return.

In addition, the described cylinder body lid of described damper 20 can also adopt another kind of replacement form.In this replacement embodiment, seal cover forms external screw thread near the part of described cylinder body 12 ends, and the screw-internal thread fit of itself and described cylinder body 12 end corresponding sites directly is fixed on the end of described cylinder body 12.Described seal cover exposes described cylinder part and has radially outstanding flange, so that be pressed on when fastening on the ora terminalis of described cylinder body 12, is provided with and other parts connection structure connecting on the described seal cover.Such structure can be saved the fixed cap parts.Have, a replacement form of described cylinder body 12 is that described cylinder body 12 an only end has opening again, the other end is the blind hole end, arranged outside and other parts connection structure connecting at described blind hole end can reduce number of components and parts like this, and structure can be more succinct.

Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model claim.

Claims

1. hinge, it comprises and being fixedly installed near deciding hinge fraction (21) and being fixedly installed in moving hinge fraction (22) on the door on the fixed object of one of student side or top; It is characterized in that, also comprise:

A hinge axis (23), the one end decides with described that hinge fraction (21) is rotationally connected, the other end is fixedlyed connected with described moving hinge fraction (22);

One is used to damper (20) that an automatic slowly is closed, described damper (20) has a cylindrical body (24) and stretches out from described cylindrical body (24) one ends, can relative flexible pull bar (2), the free end of described cylindrical body (24) and described pull bar (2) constitutes the two ends of described damper (20) respectively; It is hinged that one end of described damper (20) and described to decide the relatively-stationary parts of hinge fraction (21) hinged, the other end and described hinge axis (23) are gone up the arm of force (28) that the axis perpendicular to described hinge axis (23) stretches out.

2. hinge according to claim 1 is characterized in that, the described arm of force (28) is in when door leaf cuts out over against the position of described damper (20).

3. hinge according to claim 1 is characterized in that, also comprises making described hinge axis (23) turn to certain position and static hinge axis detent mechanism.

4. hinge according to claim 3 is characterized in that, described hinge axis detent mechanism comprises:

With integrated one or two the symmetrically arranged fin (231) of described hinge axis (23);

Take shape in described decide on the hinge fraction (21) and chamber (25) described fin (231) cooperating, be arranged on the block (26) in the described chamber (25) and be positioned at described chamber (25) inwall and described block (26) between elastomeric element (27), the part of described block (26) is suitable for stretching out to cooperate with described fin (231) from described chamber (25).

5. according to each described hinge of claim 1-4, it is characterized in that, describedly decide hinge fraction (21) and comprise a hinge box (37), panel (34) and installing plate (35) rotation that described hinge axis (23) passes described hinge box (37) are installed in the hinge axis jack (36).

6. according to each described hinge of claim 1-4, it is characterized in that described damper comprises:

A cylinder body (12), described cylinder body (12) has at least one openend;

Cylinder body covers, and seals the openend of described cylinder body (12), to form sealed chamber in described cylinder body (12), forms through hole on the end face of one of them described cylinder body lid;

The through hole that a pull bar (2), one end pass on the end face of described cylinder body lid stretches in the described cylinder body (12);

A piston is installed in described pull bar (2) and stretches on the interior end of described cylinder body (12), and described sealed chamber is divided into two parts, and can be along described cylinder body (12) inner wall sealing ground back and forth movement; And

A biasing member is arranged between described piston and the described cylinder body (12), provides along the axial answer biasing force of described cylinder body (12) to described piston;

Described piston is provided with circulation one way valve (16) and current-limiting apparatus, resisting medium in the described sealed chamber of described circulation one way valve (16) restriction can only flow in the first of the described sealed chamber of described piston one side in the second portion of described sealed chamber of described piston opposite side, and described current-limiting apparatus limits the flow rate of resisting medium between two parts of described sealed chamber.

7. hinge according to claim 6 is characterized in that, exceed opening (151) or allow the direction of liquid flow and the opposite Check valve of current limiter (152) of direction of described circulation one way valve (16) permission liquid flow of described current-limiting apparatus.

8. hinge according to claim 6 is characterized in that, described biasing member is the helical spring (3) that is arranged between described piston and the described cylinder body lid.

9. the hinge of stating according to claim 6 is characterized in that, described piston comprises

Piston only (6), described piston only (6) have a cylinder side wall and are arranged on the next door of described cylinder side wall middle part radial arrangement, and described next door is provided with described circulation one way valve (16) and described current-limiting apparatus; And

Described circulation one way valve (16) comprises first valve opening of the part taper that is molded on the described next door, be arranged on the valve ball in described first valve opening, first piston lid (4) on end that is fixedly installed on described piston only (6) with through hole, and be arranged on spring between described first piston lid (4) and the described valve ball;

Be provided with a slit that is used for the resisting medium circulation between described first piston lid (4) and the described next door.

10. hinge according to claim 9 is characterized in that, described pull bar (2) is connected with described piston by being fixedly attached on the described first piston lid (4); Described through hole on the described first piston lid (4) is for being arranged on the resisting medium passage (18) that described pull bar (2) closes on an end of described first piston lid (4), and an end of described resisting medium passage (18) is communicated with corresponding described sealed chamber by the sidewall of described pull bar (2); The other end of described resisting medium passage (18) is communicated with the slit that is used for the hydraulic fluid circulation between described first piston lid (4) and the described next door.

11. hinge according to claim 9, it is characterized in that, described current-limiting apparatus comprises second valve opening of the part taper that is molded on the described next door, the tapered direction of described second valve opening is opposite with the tapered direction of described first valve opening, be arranged on the valve ball in described second valve opening, second piston cap (7) on other end that is fixedly installed on described piston only (6) with through hole, and be arranged on spring between described second piston cap (7) and the described valve ball;

Be provided with a slit that is used for the hydraulic fluid circulation between described second piston cap (7) and the described next door.

12. hinge according to claim 11 is characterized in that, described pull bar (2) is connected with described piston by being fixedly attached on described first piston lid (4) or described second piston cap (7); Described through hole on described first piston lid (4) or described second piston cap (7) is for being arranged on the resisting medium passage (18) that described pull bar (2) closes on an end of described piston, and an end of described resisting medium passage (18) is communicated with corresponding described sealed chamber by the sidewall of described pull bar (2); The other end of described resisting medium passage (18) is communicated with the slit that is used for the resisting medium circulation between described first piston lid (4) or described second piston cap (7) and the described next door.

13. hinge according to claim 6 is characterized in that, described cylinder body lid comprises seal cover (10,14) and fixed cap (8,13); Be provided with sealing ring (5) between the inner surface of described seal cover (10,14) external surface and described cylinder body (12) end corresponding position; The external surface of described fixed cap (8,13) inner surface and described cylinder body (12) end corresponding position is provided with screw thread, so that described fixed cap (8,13) fixes with the corresponding end thread of described cylinder body (12), and described seal cover (10,14) is pressed in the corresponding end of described cylinder body (12).

14. hinge according to claim 13, it is characterized in that, in forming the described cylinder body lid of through hole, also comprise pull bar sealed screw cover (9) and pull bar sealing ring (11), described seal cover (10,14) through hole has radially inwardly outstanding boss near an end parts of described sealed chamber, and be provided with the internal thread that matches with the external screw thread of described pull bar sealed screw cover (9) away from the inwall of an end parts of described sealed chamber, described pull bar sealing ring (11) is positioned at described pull bar sealed screw cover (9) and described seal cover (10,14) between, along with described pull bar sealed screw cover (9) towards described seal cover (10,14) tighten, described pull bar sealing ring (11) forms described pull bar (2) and described pull bar sealed screw cover (9) and seal cover (10,14) sealing between.