CN205101449U - Hydraulic damper and hinge - Google Patents

Abstract

The utility model discloses a hydraulic damper and a hinge. Hydraulic damper includes that the column cylinder body reaches certainly column cylinder body one end rise to set gradually in piston assembly, seal assembly and end cover in the column cylinder body. Piston assembly is formed with the oil gallery. Hydraulic damper is still including passing in proper order the end cover reaches seal assembly and with piston assembly fixed connection's piston rod. The seal assembly activity sets up, hydraulic damper is still including setting up seal assembly reaches first buffering elastic element between the end cover. Among the above -mentioned hydraulic damper, first buffering elastic element can keep working liquid's pressure unchangeable when seal assembly removes. Consequently, even the frequent use of hydraulic damper still can keep good buffering effect to the working liquid seepage can not appear because of working liquid's temperature rise.

Description

Hydraulic damper and hinge

Technical field

The utility model relates to buffer hinge field, particularly relates to a kind of hydraulic damper and a kind of hinge.

Background technique

Realize being rotationally connected by hinge between the body of some device existing or equipment and door body, and use hydraulic damper to provide cushioning effect.But if hydraulic damper uses overfrequency, the working liquid body temperature of hydraulic damper rises and then may occur that working liquid pressure increases the problem affecting cushioning effect or working liquid body seepage.

Model utility content

The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, the utility model provides a kind of hydraulic damper and a kind of hinge.

The hydraulic damper of the utility model mode of execution comprises columnar cylinder body and from described columnar cylinder body one end, is set in turn in piston assembly, black box and the end cap in described columnar cylinder body.Described piston assembly is formed with spill port.Described hydraulic damper also comprises successively through described end cap and described black box and the piston rod be fixedly connected with described piston assembly.Described black box activity is arranged, and described hydraulic damper also comprises the first snubber elastomeric element be arranged between described black box and described end cap.

In the hydraulic damper of the utility model mode of execution, cylinder body one end and piston rod can be connected on a body and body, under the effect of piston rod by external force, working liquid body flows to the opposite side of piston assembly through spill port from the side of piston assembly at spill port, realizes the cushioning effect of door body when opening and closing.

Working liquid body in hydraulic damper is when hydraulic damper frequently uses Yin Wendu to raise to cause pressure increase, and working liquid body promotes black box and moves, and the first snubber elastomeric element is used for keeping the pressure of working liquid body constant when black box moves.Therefore, even if the frequent use of hydraulic damper still can keep good cushioning effect, and working liquid body seepage can not be there is because the temperature of working liquid body rises.

In addition, when the temperature of working liquid body declines, the first snubber elastomeric element can promote black box compression work liquid, makes the pressure of working liquid body keep balance, thus keeps the cushioning effect of hydraulic damper.

In some embodiments, described hydraulic damper comprises that to be arranged on described columnar cylinder body outer and connect the reseting elastic element of described end cap and described piston rod.

In some embodiments, described black box and described columnar cylinder body are formed with the first chamber jointly, described columnar cylinder body offer the opening being communicated with described first chamber, and described hydraulic damper comprises the first Sealing for sealing described opening.

In some embodiments, described black box and described columnar cylinder body are formed with the first chamber jointly, described black box, described end cap and described columnar cylinder body form the second chamber jointly, and the sectional area of described second chamber is greater than the sectional area of described first chamber.

In some embodiments, described piston assembly comprises piston and the second snubber elastomeric element.Described piston rod is fixedly connected with described piston.Second snubber elastomeric element is arranged between described piston and the opposing one end of described end cap and described columnar cylinder body, and described second snubber elastomeric element at least one end is fixedly connected with described piston or with described columnar cylinder body.In some embodiments, described second snubber elastomeric element one end is fixedly connected with described piston, and described piston assembly comprises the block be connected with the described second snubber elastomeric element the other end.

In some embodiments, described piston is arranged with the second Sealing.

In some embodiments, described black box comprises the first seal, the second seal, outside seal and inner seal liner.

First seal to be movably set on described piston rod and to arrange near described piston assembly.

Second seal to be movably set on described piston rod and to be positioned at described first seal and the opposing side of described piston assembly.

Outside seal is set on described second seal to seal the gap between described black box and described columnar cylinder body.

Inner seal liner is movably set on described piston rod and circle is located in described second seal to seal the gap between described black box and described piston rod.

In some embodiments, described piston rod comprises first end and the second end, and described first end stretches in described columnar cylinder body, and described second end exposes outside described columnar cylinder body, and described second end is provided with handle.

The hinge of the utility model mode of execution comprises above-mentioned hydraulic damper.

Hinge due to the utility model mode of execution uses above-mentioned hydraulic damper, and therefore, the hinge of the utility model mode of execution can keep a body to have good cushioning effect when opening and closing.

Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of mode of execution, wherein:

Fig. 1 is the structural representation of the hydraulic damper of the utility model mode of execution.

Fig. 2 is the exploded perspective schematic diagram of the hydraulic damper of the utility model mode of execution.

Fig. 3 is the exploded perspective schematic diagram of the piston assembly of the hydraulic damper of the utility model mode of execution.

Fig. 4 is the exploded perspective schematic diagram of the black box of the hydraulic damper of the utility model mode of execution.

Embodiment

Be described below in detail mode of execution of the present utility model, the example of described mode of execution is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the mode of execution be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more described features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.

In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection or can communication mutually; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.

Disclosing hereafter provides many different mode of executions or example is used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the utility model.In addition, the utility model can in different example repeat reference numerals and/or reference letter, this repetition is to simplify and clearly object, itself does not indicate the relation between discussed various mode of execution and/or setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skill in the art can recognize the application of other techniques and/or the use of other materials.

See also Fig. 1-Fig. 4, the hydraulic damper 100 of the utility model mode of execution comprises columnar cylinder body 10, piston assembly 20, black box 30, end cap 40, piston rod 50 and the first snubber elastomeric element 60.

Piston assembly 20, black box 30 and end cap 40 are set in turn in columnar cylinder body 10 from columnar cylinder body 10 one end.Piston rod 50 is fixedly connected with piston assembly 20 through end cap 40 and black box 30 successively.Piston assembly 20 is formed with spill port 20a.Black box 30 activity is arranged.First snubber elastomeric element 60 is arranged between black box 30 and end cap 40.

In the hydraulic damper 100 of the utility model mode of execution, on the door body that columnar cylinder body 10 one end and piston rod 50 are connected to device or the equipment with door body structure and body, at piston rod 50 by under the effect of external force, working liquid body L flows to the opposite side of piston assembly 20 through spill port 20a from the side of piston assembly 20, realizes the cushioning effect of door body when opening and closing.

Working liquid body L is when hydraulic damper 100 frequent use Yin Wendu rising causes pressure increase, and working liquid body L promotes black box 30 and moves, and the first snubber elastomeric element 60 is for keeping the pressure of working liquid body L constant when black box 30 moves.Therefore, even if the frequent use of hydraulic damper 100 still can keep good cushioning effect, and working liquid body L seepage can not be there is because the temperature of working liquid body L rises.

In addition, when the temperature of working liquid body L declines, the first snubber elastomeric element 60 can promote black box 30 compression work liquid L, makes the pressure of working liquid body L keep balance, thus keeps the cushioning effect of hydraulic damper 100.

In the present embodiment, hydraulic damper 100 comprises that to be arranged on columnar cylinder body 10 outer and connect the reseting elastic element 70 of end cap 40 and piston rod 50.

So, Returnning spring element 70 can ensure that hydraulic damper 100 tries hard to recommend dynamic piston rod 50 outside and external force all has cushioning effect from piston rod 50 sheds time.

Particularly, as shown in Fig. 1 orientation, when trying hard to recommend dynamic piston rod 50 outside, piston rod 50 promotes piston assembly 20 and moves upward, and the downside that working liquid body L flow to piston assembly 20 from the upside of piston assembly 20 by spill port 20a serves buffer function.Meanwhile, reseting elastic element 70 compresses.

When external force sheds, reseting elastic element 70 extends.Piston rod 50, under the promotion of reseting elastic element 70, pulls piston assembly 20 to move downward downwards, and the upside that working liquid body L flow to piston assembly 20 from the downside of piston assembly 20 by spill port 20a serves buffer function equally.

That is, the hydraulic damper 100 of the utility model mode of execution be applied to there is body and door body device or equipment on time, door body all has cushioning effect when opening or closing.

In the present embodiment, reseting elastic element 70 is set on piston rod 50.And in other embodiments, reseting elastic element can be arranged on outside piston rod.Reseting elastic element 70 can be formed by spring material manufacture.So, reseting elastic element 70 has good elasticity and hardness, and the life-span is longer.

In the present embodiment, working liquid body L is Dormant oils type hydraulic oil.So, Dormant oils type hydraulic pressure oil viscosity is comparatively large, the good buffer effect of hydraulic damper 100.In addition, Dormant oils type hydraulic oil can also reduce the frictional force between piston assembly 20 and columnar cylinder body 10.

In the present embodiment, columnar cylinder body 10 and black box 30 are formed with the first chamber 11.Columnar cylinder body 10 offers the opening 12 of connection first chamber 11.Hydraulic damper 100 comprises the first Sealing 80 for sealed open 12.

So, the user that facilitates of opening 12 changes working liquid body L in hydraulic damper 100.

Particularly, columnar cylinder body 10 comprises the first end face 10a and the second end face 10b relative with the first end face 10a.End cap 40 is arranged on the first end face 10a.End cap 40 comprises assembly department 41 and by the outward extending sealed department 42 of assembly department 41.Assembly department 41 is formed with step surface 43 with the joint of sealed department 42.So, step surface 43 is convenient to end cap 40 location and installation in columnar cylinder body 10.

In the present embodiment, preferably, opening 12 is formed to the second end face 10b extension by the first end face 10a of columnar cylinder body 10.So, opening 12 is easily processed to form, and can reduce the manufacture cost of columnar cylinder body 10.

In the present embodiment, opening 12 is tapped hole, and the first Sealing 80 is the plug screw with corresponding threaded holes.Plug screw is by screw in tapped hole thus to reach the effect of sealed open 12.Preferably, between the second end face 10b and plug screw, gasket seal can be installed, such as wool felt pad, thus further sealing thread hole.

In the present embodiment, the sectional area that columnar cylinder body 10, black box 30 and end cap 40 are formed with the second chamber 13, second chamber 13 is jointly greater than the sectional area of the first chamber 11.

So, the joint of the first chamber 11 and the second chamber 13 forms step, is conducive to black box 30 and seals working liquid body L in the first chamber 11.In addition, the sectional area of the second chamber 13 is greater than being provided with of the sectional area of the first chamber 11 and is beneficial to columnar cylinder body 10 manufacturing.

In the present embodiment, piston assembly 20 comprises piston 21 and the second snubber elastomeric element 23.Piston rod 50 is fixedly connected with piston 21.Second snubber elastomeric element 23 is arranged between piston 21 and the opposing one end of end cap 40 and columnar cylinder body 10.Second snubber elastomeric element 23 at least one end is fixedly connected with piston 21 or with columnar cylinder body 10.

So, second snubber elastomeric element 23 can limit the moving range of piston 21, avoid piston 21 collide with columnar cylinder body 10 in the process of movement and cause the damage of piston 21 and columnar cylinder body 10, in addition, also can reduce the noise that hydraulic damper 100 produces in the process of work.

In the present embodiment, one end of the second snubber elastomeric element 23 is fixedly connected with piston 21.Piston assembly 20 comprises the block 24 be connected with second snubber elastomeric element 23 the other end.That is, the two ends of the second snubber elastomeric element 23 connection block 24 and piston 21 respectively.

So, block 24 can avoid the second snubber elastomeric element 23 directly to contact with columnar cylinder body 10, and block 24 also can increase the area of contact with columnar cylinder body 10 when piston 21 slides, thus reduces the wearing and tearing of columnar cylinder body 10.

Particularly, incorporated by reference to Fig. 1, when piston 21 push rod promotion piston 21 moves upward, block 24 first contacts with columnar cylinder body 10.Continue at piston 21 in the process of movement, the second snubber elastomeric element 23 compresses, and slowing down the displacement distance also defining piston 21 of piston 21 travelling speed, hydraulic damper 100 serves further buffer function.

First chamber 11 is formed with the groove 14 matched with block 24 on the movement direction of block 24, and when piston assembly 20 moves up, block 24 first moves in groove 14.So, when extruding the working liquid body L in groove 14 at block 24, the flow resistance of working liquid body L increases, and can realize the buffer function of hydraulic damper 100 further.

In addition, groove 14 is communicated with opening 12.When hydraulic damper 100 changes working liquid body L, groove 14 is conducive to the working liquid body L in hydraulic damper 100 to discharge totally.

In the present embodiment, piston 21 is arranged with the second Sealing 26.

So, the second Sealing 26 can prevent from flowing in the gap of working liquid body L between piston 21 and columnar cylinder body 10, thus affects the cushioning effect of hydraulic damper 100.

Particularly, piston 21 is formed with circular groove 211, the second Sealing 26 is arranged in circular groove 211.In the movement process of piston 21, the circumferential surface close contact of the second Sealing 26 and the first chamber 11, thus reach the sealing effect between piston 21 and the first chamber 11.

Rub with columnar cylinder body 10 in the process of movement due to the second Sealing 26 and produce heat, therefore, second Sealing 26 can be made up of material that is high temperature resistant and rub resistance, and such as, the material of the second Sealing 26 can be the high temperature resistant and rub resistance material such as teflon or polyurethane.

Piston 21 also offers center hole 212, and piston rod 50 is connected with piston 21 through center hole 212.Piston 21 an end face and around piston rod 50, be provided with piston seal film 25.So, piston seal film 25 can prevent hydraulic pressure from flowing between center hole 212, thus ensures the cushioning effect of hydraulic damper 100.

In the present embodiment, black box 30 comprises the first seal 31, second seal 32, outside seal 33 and inner seal liner 34.

First seal 31 to be movably set on piston rod 50 and to arrange near piston assembly 20.

Second seal 32 to be movably set on piston rod 50 and to be positioned at the first seal 31 and the opposing side of piston assembly 20.

Outside seal 33 is set on the second seal 32 to seal the gap between black box 30 and columnar cylinder body 10.

Inner seal liner 34 is movably set on piston rod 50 and circle is located in the second seal 32 to seal the gap between black box 30 and piston rod 50.

So, outside seal 33 and inner seal liner 34 can prevent working liquid body L from flowing to the second chamber 13 by the first chamber 11, thus avoid the working liquid body L in the first chamber 11 to reduce and affect the cushioning effect of hydraulic damper 100.

In the present embodiment, piston rod 50 comprises first end 50a and the second end 50b, first end 50a stretch in columnar cylinder body 10, and the second end 50b exposes outside columnar cylinder body 10, and the second end 50b is provided with handle 90.

So, handle 90 facilitates being installed on corresponding hinge of hydraulic damper 100.

In the present embodiment, particularly, reseting elastic element 70 is fastened between handle 90 and end cap 40.Second end 50b of piston rod 50 is formed with screw thread, and handle 90 is formed with the screw matched with the screw thread on the second end 50b of piston rod 50, handle 90 is installed on piston rod 50 by screw-thread fit.So, the dismounting of reseting elastic element 70 can be facilitated.

In other embodiments, reseting elastic element sheathed on the piston rod after, handle is fixing on the piston rod by Placements such as welding.

The hinge of the utility model mode of execution comprises the hydraulic damper 100 of above-mentioned mode of execution.

Above-mentioned hydraulic damper 100 applied by hinge due to the utility model mode of execution, and body and the door body of device are connected through the hinge.Therefore, the hinge of the utility model mode of execution can keep a body to have good cushioning effect when opening and closing, effectively can reduce a body and collide with body the noise produced when closing, in addition, user's generation unexpectedly such as tong when unexpected closedown door body can also be avoided.

In the description of this specification, specific features, structure, material or feature that the description of reference term " mode of execution ", " some mode of executions ", " exemplary embodiment ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with described mode of execution or example are contained at least one mode of execution of the present utility model or example.In this manual, identical mode of execution or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more mode of execution or example.

Although illustrate and described mode of execution of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these mode of executions when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims (10)

1. a hydraulic damper, is characterized in that the piston assembly, black box and the end cap that comprise columnar cylinder body and be set in turn in from described columnar cylinder body one end in described columnar cylinder body;

Described piston assembly is formed with spill port;

Described hydraulic damper also comprises successively through described end cap and described black box and the piston rod be fixedly connected with described piston assembly;

Described black box activity is arranged, and described hydraulic damper also comprises the first snubber elastomeric element be arranged between described black box and described end cap.

2. hydraulic damper as claimed in claim 1, is characterized in that, described hydraulic damper comprises that to be arranged on described columnar cylinder body outer and connect the reseting elastic element of described end cap and described piston rod.

3. hydraulic damper as claimed in claim 1, it is characterized in that, described black box and described columnar cylinder body are formed with the first chamber jointly, described columnar cylinder body offer the opening being communicated with described first chamber, and described hydraulic damper comprises the first Sealing for sealing described opening.

4. hydraulic damper as claimed in claim 1, it is characterized in that, described black box and described columnar cylinder body are formed with the first chamber jointly, described black box, described end cap and described columnar cylinder body form the second chamber jointly, and the sectional area of described second chamber is greater than the sectional area of described first chamber.

5. hydraulic damper as claimed in claim 1, it is characterized in that, described piston assembly comprises:

Piston, described piston rod is fixedly connected with described piston; And

Be arranged at the second snubber elastomeric element between described piston and the opposing one end of described end cap and described columnar cylinder body, described second snubber elastomeric element at least one end is fixedly connected with described piston or with described columnar cylinder body.

6. hydraulic damper as claimed in claim 5, it is characterized in that, described second snubber elastomeric element one end is fixedly connected with described piston, and described piston assembly comprises the block be connected with the described second snubber elastomeric element the other end.

7. hydraulic damper as claimed in claim 5, is characterized in that, described piston is arranged with the second Sealing.

8. hydraulic damper as claimed in claim 1, it is characterized in that, described black box comprises:

Be movably set in the first seal arranged on described piston rod and near described piston assembly;

To be movably set on described piston rod and to be positioned at the second seal of described first seal and the opposing side of described piston assembly;

Be set on described second seal to seal the outside seal in gap between described black box and described columnar cylinder body; And

To be movably set on described piston rod and circle is located in described second seal to seal the inner seal liner in gap between described black box and described piston rod.

9. hydraulic damper as claimed in claim 1, it is characterized in that, described piston rod comprises first end and the second end, and described first end stretches in described columnar cylinder body, and described second end exposes outside described columnar cylinder body, and described second end is provided with handle.

10. a hinge, is characterized in that, comprises the hydraulic damper as described in any one of claim 1-9.