CN104358487B

CN104358487B - Large pressure damper

Info

Publication number: CN104358487B
Application number: CN201410616131.2A
Authority: CN
Inventors: 金烈水
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-05
Filing date: 2014-11-05
Publication date: 2016-02-03
Anticipated expiration: 2034-11-05
Also published as: CN104358487A

Abstract

The present invention relates to a kind of large pressure damper, comprise rotating shaft and sleeve, it is characterized in that: rotating shaft forms by three sections, be respectively the screw rod protruded outside bushing core hole, be inserted in main shaft in sleeve and the shaft shoulder and expose the key lever of sleeve; The outerface of spindle is provided with two symmetrical barricades, barricade is provided with groove, a limit of groove is bearing plate, another limit is the jagged leakage plate of band, bearing plate is connected by fan-shaped web in one end of the connecting screw rod of main shaft with leakage plate, and the periphery of fan-shaped web and the internal diameter of sleeve match; Be inserted with valve blade with holes in the groove that barricade is arranged, valve hole is relative with the recess leaked on plate; Sleeve lining is provided with two symmetrical straight muscle, and the inner chamber of sleeve is separated into two isometric annular seal spaces by straight muscle, is full of damping oil in cavity; Sleeve is inserted in rotating shaft, and nut screwing clamping is on screw rod, and nut, packing washer extrude the second sealing ring.The present invention can increase substantially voltage endurance capability and the stability in use of damper, and the life-span extends greatly.

Description

Large pressure damper

Technical field

The present invention relates to a kind of large pressure damper, the buffering when unlatching that can be widely used in high pulling torque, heavier furniture, sanitary equipment, various door closures etc. closes is slow falls damping, prevents door closure from clashing into and breaks, produce impact sound when avoiding.

Background technology

The damper of existing domestic and international application and snubber, as in furniture, bathroom, sanitary equipment, need the door opened up and down or lid (as lavatory lid), what generally adopt is low-pressure structure, if toilet lid major part is plastics, material compares effect light, to the torque demand of damper is not noble can be effective, but along with the expansion of application and the raising of door closure quality, as toilet lid generally adopted light and handy plastics originally, and the density board will more and more adopting quality very heavy at present and from now on, require more and more higher to the moment of torsion of damper and bearing capacity.Although this field has damper to cushion the keying of door closure at present, this type of damper effect is very undesirable both at home and abroad, or effect is bad, door closure is declined too soon or too slow, or fragile, and application life is shorter.The present invention is mainly for solving large pressure, high performance damping and a kind of damper designed.

Summary of the invention

The object of this invention is to provide the large pressure of a kind of tolerance and stable performance, the damper grown again application life.

The object of the present invention is achieved like this: a kind of large pressure damper, comprise rotating shaft and sleeve, it is characterized in that: rotating shaft forms by three sections, be respectively the screw rod protruded outside bushing core hole, be inserted in main shaft in sleeve and the shaft shoulder and expose the key lever of sleeve, the shaft shoulder is provided with the first sealing ring; The outerface of spindle is provided with two symmetrical barricades, barricade is provided with groove, a limit of groove is bearing plate, another limit is the jagged leakage plate of band, bearing plate is connected by fan-shaped web in one end of the connecting screw rod of main shaft with leakage plate, and the periphery of fan-shaped web and the internal diameter of sleeve match;

Be inserted with valve blade with holes in the groove that barricade is arranged, valve hole is relative with the recess leaked on plate;

Sleeve lining is provided with two symmetrical straight muscle, and sleeve one end is provided with end face, and end face has centre bore; The protective casing of one section of mounting nuts is set outside end face, in protective casing, is provided with the second sealing ring;

Sleeve is inserted in rotating shaft, and nut screwing clamping is on screw rod, and nut, packing washer extrude the second sealing ring; The inner chamber of sleeve is separated into two isometric annular seal spaces by the straight muscle of sleeve, is full of damping oil in cavity; Each annular seal space is divided into the first chamber and second chamber of two variable volume by two barricades that the outerface of spindle is arranged again, and the flowing of the first chamber and the second chamber internal damping oil controls primarily of valve blade.

Object of the present invention can also realize like this: the groove that barricade is arranged is V-shaped groove, the base angle of V-shaped groove is designed to semi arch, corresponding with it, the cross section of valve blade is also triangle, and base angle is also designed to semicircle arcuation base angle, valve blade barricade bearing plate and be with rotary oscillation between jagged leakage plate to complete valve opening and closed.

Valve blade top is designed to cambered surface obtuse angle near the angle of the bearing plate of barricade, when rotating shaft rotation makes valve blade abut in the bearing plate of barricade, valve blade is pushed to the inwall of sleeve under the effect of damping oil.

Shaft shoulder inner face is provided with two ox horn grooves, and the jagged leakage plate of band of barricade is pointed in the bight of ox horn groove, and the outerface of spindle is designed to arc surface with leakage plate joining part; The wide portion of ox horn groove points to the bearing plate of barricade, and the outerface of spindle and bearing plate joining part are designed to section.

The present invention designs according to hydraulic principle the sleeve that is born hydraulic coupling, this sleeve Outer structural shape can be connected with door closure rotary axle box, sleeve is linked mutually by keyway, its inner chamber contains damping oil, sleeve lining arranges two symmetrical straight muscle and to be separated in two by barrel bore chamber, rotating shaft is loaded in chamber, the revealed section of rotating shaft is that key lever is connected with door closure hinge, rotating shaft is going deep on the main shaft in sleeve, design two symmetrical V-shaped groove barricades, each V-shaped groove barricade is made up of bearing plate and leakage plate, compression plate towards barrel while leave comparatively wide arc gap, and leak plate towards barrel while be designed to some recesses, these recesses all align the oil leaking hole on valve blade, the end of the barricade of two band V-shaped grooves has one piece of fan-shaped link to pull connection, its fan-shaped web periphery and sleeve diameter match, bearing plate and leakage plate link together by fan-shaped web, become the entirety that V-shaped groove four limit surrounds, the intensity enhancing compression plate is pulled in this fan-shaped link, and at the middle insertion valve blade of V-shaped groove, valve blade and sleeve lining contact position are interference clearance, gap value pressing force specification is determined, bottom valve blade and V-shaped groove, joint is semi-cylindrical, its radius of this face of cylinder of valve blade is less than the radius that rotating shaft engages place, both formation circular arcs when rotation work are moved back and pulls out curved surface, when hydraulic coupling is increasing, utilization is moved back and is pulled out inclined-plane and form centrifugal component, valve blade is made more to be close to sleeve lining along with the increase of hydraulic coupling, some oil leaking holes are provided with in the middle of valve blade, when rotating shaft is rotated to valve blade direction, valve blade one side plane is combined with the plane of bearing plate, just airtight by hydraulic coupling, damping oil cannot flow to the second chamber from the first chamber, rotate slowly by the effect of hydraulic coupling when rotating shaft is rotated, and damping oil progressively can only be leaked by the ox horn groove etc. of structure interval and shaft shoulder end, reach the object that door closure slowly declines.And the key lever that fluctuation dampers which rotating shaft exposes is with when door closure turns over, valve blade is leaned on mutually with leakage plate, and make the leak in valve blade relative with the recess leaked on plate, damping oil is allowed to return the first chamber by these leaks from the second chamber Channel Group, moreover major axis diameter is designed to except section except the part be connected with the bearing plate of barricade, all the other are all designed to two symmetrical arc surfaces, when turning under door closure curved surface to axle center half through progressively strengthening, making the face of cylinder separate straight muscle with two in sleeve piece engages more and more tightr, make the leakage rate of damping oil fewer and feweri, bearing capacity is increasing, the ox horn groove being located at the main shaft shaft shoulder is also streaked by the end of separating straight muscle, bight is slided to from the wide portion of ox horn groove, leakage of oil amount reduces gradually with door closure whereabouts to make leakage rate, bearing capacity also progressively strengthens, namely door closure slowly declines, reach the object of damp slow falling.

When door closure turns over, the barricade in rotating shaft leaks plate and rotates to valve blade, and both lean on mutually, and the valve hole on valve blade is relative with the recess leaked on plate to communicate, and damping oil is leaked, and can reach door closure and very easily open fast when upper turning over.On the shaft shoulder, be also provided with the first sealing ring in addition stops chamber internal damping oil to leak outside, also be designed with one and take root in screw rod into the alignment of shafts turning the tip of the axis, this screw rod is through the centre bore of sleeve, bushing core hole exits place is provided with the second sealing ring, the second sealing ring is compressed with nut, packing washer, stop chamber internal damping oil toward external leakage, and carry out the pressure order of magnitude of damping adjusting device by the degree of tightening of nut.

Large pressure damper of the present invention is trial-produceed successfully, proves through practice test, and the present invention can increase substantially voltage endurance capability and the stability in use of damper, and the life-span extends greatly.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the invention will be further described:

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

Fig. 2 is the left view (internal sectional) of Fig. 1

Fig. 3 is rotating shaft schematic diagram of the present invention;

Fig. 4 is sleeve sectional view of the present invention;

Fig. 5 is the right view of Fig. 4;

Fig. 6 is valve blade schematic diagram of the present invention;

Fig. 7 is the left view of Fig. 6.

Detailed description of the invention

The concrete title of each label in accompanying drawing:

Rotating shaft 1: comprise key lever 1.1, the shaft shoulder 1.2, bearing plate 1.3, leaks plate 1.4, fan-shaped web 1.5, screw rod 1.6, main shaft 1.7, ox horn groove 1.8, arc surface 1.9;

Sleeve 2: comprise straight muscle 2.1 centre bore 2.2;

Valve blade 3: comprise valve hole 3.1, semicircle arcuation base angle 3.2, cambered surface obtuse angle 3.3;

First sealing ring 4; Second sealing ring 5; Packing washer 6; Nut 7.

Referring to figs. 1 through Fig. 7, a kind of large pressure damper, comprises rotating shaft 1 and sleeve 2, rotating shaft 1 be divided into insert sleeve 2 the section of including main shaft 1.7, expose sleeve 2 expose the part such as key lever 1.1 and screw rod 1.6; The shaft shoulder 1.2 is had between the section of including main shaft 1.7 and revealed section key lever 1.1; The shaft shoulder 1.2 is provided with the first sealing ring 4; Sleeve 2 inner chamber is encircled into cavity by the inwall of main shaft 1.7, the shaft shoulder 1.2, sleeve 2, is full of damping oil in cavity after inserting main shaft 1.7.

The inwall of sleeve 2 is provided with two symmetrical straight muscle 2.1, and the inner chamber of sleeve 2 is separated into two isometric annular seal spaces by straight muscle 2.1, and the section of including main shaft 1.7 external surface is also provided with two symmetrical barricades.Barricade is provided with V-arrangement grain, a limit of V-arrangement grain is bearing plate 1.3, another limit is the jagged leakage plate 1.4 of band, bearing plate 1.3 is connected by fan-shaped web 1.5 in one end of the connecting screw rod of main shaft 1.7 with leakage plate 1.4, and the periphery of fan-shaped web 1.5 and the internal diameter of sleeve 2 match; Be inserted with valve blade 3 with holes in the V-arrangement grain that barricade is arranged, valve hole 3.1 is relative with the recess leaked on plate 1.4.

The base angle of V-shaped groove is designed to semi arch, corresponding with it, the cross section of valve blade 3 is also triangle, and base angle is also designed to semicircle arcuation base angle 3.2, valve blade 3 barricade bearing plate 1.3 and be with rotary oscillation between jagged leakage plate 1.4 to complete valve opening and closed.

The cross section of valve blade 3 is also triangle, and top is designed to cambered surface obtuse angle 3.3 near the angle of the bearing plate 1.3 of barricade, when rotating shaft 1 rotation makes valve blade 3 abut in the bearing plate 1.3 of barricade, valve blade 3 is pushed to the inwall of sleeve 2 under the effect of damping oil.

The shaft shoulder 1.2 inner face is provided with two ox horn grooves 1.8, and the jagged leakage plate 1.4 of band of barricade is pointed in the bight of ox horn groove, and main shaft 1.7 external surface is designed to arc surface 1.9 with leakage plate 1.4 joining part; The wide portion of ox horn groove points to the bearing plate 1.3 of barricade, and main shaft 1.7 external surface and bearing plate 1.3 joining part are designed to section.

Sleeve 2 inwall is provided with two symmetrical straight muscle 2.1, and sleeve 2 one end is provided with end face, and end face has centre bore 2.2; The protective casing of one section of mounting nuts is set outside end face, in protective casing, is provided with the second sealing ring 5.

Sleeve 2 is inserted in rotating shaft 1, and nut 7 is tightened on screw rod 1.6, and nut 7, packing washer 6 extrude the second sealing ring 5; The inner chamber of sleeve 2 is separated into two isometric annular seal spaces by the straight muscle 2.1 of sleeve 2, is full of damping oil in cavity; Each annular seal space is divided into the first chamber and second chamber of two variable volume by two barricades that main shaft 1.7 external surface is arranged again, and the flowing of the first chamber and the second chamber internal damping oil controls primarily of valve blade 3.

Fan-shaped web enhances the bulk strength of pressure-bearing barricade, after main shaft 1.7 inserts sleeve 2, annular seal space is divided into the first chamber and second chamber of two groups of variable volumes, when the rotating shaft that the normality that works connects door closure presses down, bearing plate 1.3 and valve blade 3 are close to, damping oil cannot leak, slowly can only be leaked by structure interval, leak with two ox horn grooves 1.8 symmetrical on the inner plane by being located at the shaft shoulder, inswept going is slided on the top of two straight muscle 2.1 of sleeve 2, sliding to ox horn narrow portion from the wide portion of ox horn groove 1.8 makes the oil mass of leakage fewer and feweri, such door closure declines steadily, reach the object of buffering, if the rotating shaft be attached thereto when door closure turns over 1 rotates opposite spin, the leakage plate 1.4 on main shaft 1.7 leans on mutually with valve blade 3, allows damping oil be gone back by corresponding breach Channel Group on valve hole 3.1 and leakage plate 1.4.

The cross section of valve blade 3 is triangle, and base angle is designed to semicircle arcuation base angle 3.2, play the effect of moving back and pulling out the centrifugal component in inclined-plane, when action of hydraulic force is in valve blade 3, sleeve 2 inwall can be pushed it against, play the effect more sealed, and the wearing and tearing in valve blade use procedure can be compensated, Leakage prevention, increases the service life.

Valve blade 3 top is designed to cambered surface obtuse angle 3.3 near the angle of the bearing plate 1.3 of barricade, when rotating shaft 1 rotation makes valve blade 3 abut in the bearing plate 1.3 of barricade, when rotating shaft 1 presses down by door closure, the hydraulic coupling of damping oil produces a centrifugal component on valve blade 3, valve blade 3 is pushed to the inwall of sleeve 2, make both closely sealed not easy oil leakages, also valve blade 3 can be made to have automatic compensation function when using permanent rear appearance wearing and tearing, the consistency of performance of large pressure damper is stablized, significantly increases application life.

At the screw rod 1.6 of the connection of main shaft 1.7, by the centre bore 2.2 of sleeve 2, by nut 7, packing washer 6, sealing ring 5 is compressed, centre bore 2.2 is sealed, stop damping oil to leak, positioning spindle 1.7 and the concentricity of sleeve 2, make the performance of large pressure damper more stable simultaneously, and by the adjustment of the degree of tightening to nut 7, regulate the torsion grade of large pressure damper.

Claims

1. a large pressure damper, comprise rotating shaft (1) and sleeve (2), it is characterized in that: rotating shaft (1) forms by three sections, be respectively and protrude bushing core hole (2.2) screw rod outward (1.6), be inserted in main shaft (1.7) in sleeve (2) and the shaft shoulder (1.2) and expose the key lever (1.1) of sleeve (2), the shaft shoulder (1.2) is provided with the first sealing ring (4); Main shaft (1.7) external surface is provided with two symmetrical barricades, barricade is provided with groove, a limit of groove is bearing plate (1.3), another limit is the jagged leakage plate (1.4) of band, bearing plate (1.3) is connected by fan-shaped web (1.5) in one end of the connecting screw rod of main shaft (1.7) with leakage plate, and the periphery of fan-shaped web (1.5) and the internal diameter of sleeve (2) match;

Be inserted with valve blade (3) with holes in the groove that barricade is arranged, valve hole (3.1) are relative with the recess leaked on plate (1.4);

Sleeve (2) inwall is provided with two symmetrical straight muscle (2.1), and sleeve (2) one end is provided with end face, and end face has centre bore (2.2); The protective casing of one section of mounting nuts is set outside end face, in protective casing, is provided with the second sealing ring (5);

Sleeve (2) is inserted in rotating shaft (1), and nut (7) is tightened on screw rod (1.6), and nut (7), packing washer (6) extrude the second sealing ring (5); The inner chamber of sleeve (2) is separated into two isometric annular seal spaces by the straight muscle (2.1) of sleeve (2), is full of damping oil in cavity; Each annular seal space is divided into the first chamber and second chamber of two variable volume by two barricades that main shaft (1.7) external surface is arranged again, and the flowing of the first chamber and the second chamber internal damping oil controls primarily of valve blade (3).

2. large pressure damper according to claim 1, it is characterized in that: the groove that barricade is arranged is V-shaped groove, the base angle of V-shaped groove is designed to semi arch, corresponding with it, the cross section of valve blade (3) is also triangle, and base angle is also designed to semicircle arcuation base angle (3.2), valve blade (3) rotary oscillation between the bearing plate (1.3) and the jagged leakage plate (1.4) of band of barricade completes valve opening and closes.

3. large pressure damper according to claim 2, it is characterized in that: valve blade (3) top is designed to cambered surface obtuse angle (3.3) near the angle of the bearing plate (1.3) of barricade, when rotating shaft (1) rotation makes valve blade (3) abut in bearing plate (1.3) of barricade, valve blade (3) is pushed to the inwall of sleeve (2) under the effect of damping oil.

4. the large pressure damper according to claim 1,2 or 3, it is characterized in that: the shaft shoulder (1.2) inner face is provided with two ox horn grooves (1.8), the jagged leakage plate (1.4) of band of barricade is pointed in the bight of ox horn groove, and main shaft (1.7) external surface is designed to arc surface (1.9) with leakage plate (1.4) joining part; The wide portion of ox horn groove points to the bearing plate (1.3) of barricade, and main shaft (1.7) external surface and bearing plate (1.3) joining part are designed to section.