CN208764112U - Protect linking hydraulic elongator - Google Patents

Abstract

The utility model discloses a kind of protection linking hydraulic elongators, including stretching head, cutting ferrule quick coupling and protection structure, protecting structure includes protective shell, extension, sticking part, screw, sealing ring, elastic component and conflict plate, elastic component both ends are fixedly connected at the top of conflict plate and protective shell respectively, extension in a ring and is fixed on inside protective shell, extension is equipped with seal groove, sealing ring is contained in seal groove, sticking part is fixed on outside protective shell, sticking part is fixed on stretcher outer housing by screw, screw, which is in compressive state, makes abutting portion contact at abutting portion to protect the state that is spirally connected of spiro union portion, avoid pulling route in use process to threadably engaged portion generation damage, oil circuit is caused to damage, solve the problems, such as that structural stability is poor, while cutting ferrule quick coupling is protected by protective shell, elastic component is by contradicting plate to abutting portion Apply certain pressure, oil circuit is avoided to reveal.

Description

Protect linking hydraulic elongator

Technical field

The utility model relates to Hydraulic Field more particularly to a kind of protection linking hydraulic elongators.

Background technique

Currently, bolts and nuts are that machinery field assembles indispensable components, the fixed form ratio of bolts and nuts Other fixed forms are stronger, more reliable, thus become the most common side that two or more components are fixed together Formula.Due to certain large scale equipments use bolt it is thicker, pretightning force is very big, if the fastening and disassembly of bolt by manually Lai If completion, labor intensity is very high.In addition, since the connection between component needs several, more than ten or even tens bolts realities It is existing, manually bolt is successively fastened and dismantled, the stress distribution that will cause each link position is uneven, to influence to connect The intensity of fitting.

The case where connector in hydraulic elongator on the market will appear pulling in use, due to connector with Shell is connected in the form of being spirally connected, and is pulled and is easy to generate destruction to threadably engaged portion, causes the leakage of hydraulic oil, inconvenient for use.

Utility model content

For overcome the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of protection linking hydraulic Stretcher can solve problem inconvenient for use.

One of the purpose of this utility model adopts the following technical scheme that realization:

A kind of protection linking hydraulic elongator, including stretching head, cutting ferrule quick coupling and protection structure, the stretching head It is equipped with annular protrusion at the tail position, it is corresponding that the stretching head close to one end of threaded hole slidably connects shape therewith Piston, the piston offset with the annular protrusion, and periphery is simultaneously sealedly connected with oil cylinder, the annular protrusion and the piston It is equipped with disc spring between stretcher outer housing, sealing element is provided between the oil cylinder and the corresponding piston, described close The cavity for being suitable for accommodating filled media is disposed within sealing, the cavity is equipped with the interface for being suitable for being connected with the external world, the card Covering quick coupling includes spiro union portion and abutting portion, and the protection structure includes protective shell, extension, sticking part, screw, sealing Circle, elastic component and conflict plate, the elastic component both ends are fixedly connected at the top of the conflict plate and the protective shell respectively, described Extension in a ring and is fixed on inside the protective shell, and the extension is equipped with seal groove, and the sealing ring is contained in described Seal groove, the sticking part are fixed on outside the protective shell, and the sticking part is fixed on outside the stretcher by the screw Shell, the screw, which is in compressive state, makes the abutting portion contact at the abutting portion to protect the shape that is spirally connected of the spiro union portion State.

Further, check-valves is connected with built in the interface.

Further, the sealing surface that the sealing element is suitable for being slidably connected with the piston is equipped at least one outwardly convex Sealing ring.

Further, cutting ferrule quick coupling is connected at the hydraulics inlet of the oil cylinder, the cutting ferrule quick coupling Temperature control normally close valve is additionally provided on connecting pipeline, when the transducing part of the temperature control normally close valve detects hydraulic oil temperature lower than default Temperature threshold when, the temperature control normally close valve keeps normally closed, closes the connecting pipeline；When the detecting means of the temperature control normally close valve When sorting measures hydraulic oil temperature and reaches preset temperature threshold, the temperature control normally close valve is opened, and the connecting pipeline is opened, hydraulic Oil enters oil cylinder through the cutting ferrule quick coupling.

Further, outer ring pedestal, the outside of the outer ring pedestal are equipped with close to the screw thread hole location of the stretching head It is equipped with gear set, inside is connected with the gear being connected with the gear set and pulls out set, and the gear set includes intermeshing Driving wheel and driven wheel, the driven wheel pull out set with the gear and are connected.

Further, the inner wall covering of the oil cylinder is connected with composite layer.

Further, the composite layer respectively around the oil cylinder both ends through the joint face at the oil cylinder both ends It is connected with the outer surface of hydraulic elongator outer housing.

Further, the protective shell is in U-shaped, and the sealing ring fits in the cutting ferrule quick coupling and described respectively Seal groove is to be sealed.

Further, the sticking part is perpendicular to the screw.

Further, the extension, the sticking part and the conflict plate are parallel to each other.

Compared with prior art, the utility model has the beneficial effects that:

The elastic component both ends are fixedly connected at the top of the conflict plate and the protective shell respectively, and the extension is in ring Shape is simultaneously fixed on inside the protective shell, and the extension is equipped with seal groove, and the sealing ring is contained in the seal groove, described Sticking part is fixed on outside the protective shell, and the sticking part is fixed on the stretcher outer housing, the spiral shell by the screw Silk makes the abutting portion contact at the abutting portion to protect the state that is spirally connected of the spiro union portion in compressive state, avoid using Route is pulled in the process, damage is generated to threadably engaged portion, cause oil circuit to damage, solve the problems, such as that structural stability is poor, the card While set quick coupling is protected by the protective shell, the elastic component applies the abutting portion by the conflict plate certain Pressure, avoid oil circuit from revealing.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model It can be more clearly understood with advantage, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.

Detailed description of the invention

Fig. 1 is the cross-sectional view that the utility model protects a preferred embodiment in linking hydraulic elongator；

Fig. 2 is the partial sectional view of protection linking hydraulic elongator shown in Fig. 1；

Fig. 3 is the cross-sectional view of a protection structure in protection linking hydraulic elongator shown in Fig. 1；

Fig. 4 is the cross-sectional view of a cutting ferrule quick coupling in protection linking hydraulic elongator shown in Fig. 1；

Fig. 5 is that linking hydraulic elongator composite layer attachment structure schematic diagram is protected shown in Fig. 1.

In figure: 100, protecting linking hydraulic elongator；1, stretching head；2, piston；3, oil cylinder；30, composite layer；4, Stretcher outer housing；5, disc spring；6, sealing element；60, cavity；61, interface；7, cutting ferrule quick coupling；71, spiro union portion；72, it supports Contact portion；8, outer ring pedestal；9, gear set；90, driving wheel；91, driven wheel；10, annular protrusion；11, gear pulls out set；20, it protects Protection structure；21, protective shell；22, extension；221, seal groove；23, sticking part；24, screw；25, sealing ring；26, elastic component； 27, plate is contradicted.

Specific embodiment

In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.

It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes Any and all combinations of one or more related listed items.

Please refer to Fig. 1-5, a kind of protection linking hydraulic elongator 100 includes stretching head 1, cutting ferrule quick coupling 7 and protects Protection structure 20, the stretching head 1 are equipped with annular protrusion 10 at tail position, and the stretching head 1 is close to one end of threaded hole The corresponding piston 2 of shape therewith is slidably connected, the piston 2 offsets with the annular protrusion 10, and periphery is simultaneously tightly connected Have oil cylinder 3, between the annular protrusion 10 and the piston 2 and stretcher outer housing 4 be equipped with disc spring 5, the oil cylinder 3 with it is corresponding The piston 2 between be provided with sealing element 6, be disposed within the sealing element 6 be suitable for accommodate filled media cavity 60, The cavity 60 is equipped with the interface 61 for being suitable for being connected with the external world.

Wherein check-valves is connected with built in the interface 61.What the sealing element 6 was suitable for being slidably connected with the piston 2 Sealing surface is equipped with the sealing ring of at least one outwardly convex.

The cutting ferrule quick coupling 7 includes spiro union portion 71 and abutting portion 72, and the protection structure 20 includes protective shell 21, prolongs Extending portion 22, sticking part 23, screw 24, sealing ring 25, elastic component 26 and contradict plate 27,26 both ends of elastic component respectively with it is described It contradicts and is fixedly connected at the top of plate 27 and the protective shell 21, the extension 22 in a ring and is fixed in the protective shell 21 Portion, the extension 22 are equipped with seal groove 221, and the sealing ring 25 is contained in the seal groove 221, and the sticking part 23 is fixed Outside the protective shell 21, the sticking part 23 is fixed on the stretcher outer housing, the screw 24 by the screw 24 So that the abutting portion 72 is contacted at the abutting portion 72 to protect the state that is spirally connected of the spiro union portion 71 in compressive state, avoids Route is pulled in use process, damage is generated to threadably engaged portion, cause oil circuit to damage, solve the problems, such as that structural stability is poor, institute While stating cutting ferrule quick coupling 7 and protected by the protective shell 21, the elastic component 26 is supported by the conflict plate 27 to described Contact portion 72 applies certain pressure, and oil circuit is avoided to reveal, and can adjust according to actual needs, in the present embodiment, the elastic component 26 size is measured according to experimental data, avoids the excessive damaged screw of elastic force.

The protective shell 21 is in U-shaped, and the sealing ring 25 fits in the cutting ferrule quick coupling 7 and the sealing respectively Slot 221 is to be sealed, and the sticking part 23 is perpendicular to the screw 24, the extension 22, the sticking part 23 and described It contradicts plate 27 to be parallel to each other, secondary seal is carried out to the cutting ferrule quick coupling 7, it is highly-safe.

It is disposed within the sealing element being arranged between the oil cylinder of the technical solution and corresponding piston and is suitable for accommodating filling Jie The cavity of matter, cavity are equipped with the interface for being suitable for being connected with the external world, which can be compressed in the state of being not filled by medium, from And the sealing element can be pushed into narrow holding tank and be fixed, sealing element then can be filled medium and send out therewith Raw expansion.The sealing element is preferably made of elastic material.It, can be so if fill sealing element in a manner of internal over pressure Extend on cross section, sealing surface thereby produces sealing effect.Gas, such as air are preferably used for filled media, especially Compressed air.

Cutting ferrule quick coupling 7, the company of the cutting ferrule quick coupling 7 are wherein connected at the hydraulics inlet of the oil cylinder 5 Siphunculus road is additionally provided with temperature control normally close valve, when the transducing part of the temperature control normally close valve detects hydraulic oil temperature lower than preset When temperature threshold, the temperature control normally close valve keeps normally closed, closes the connecting pipeline；When the transducing part of the temperature control normally close valve When detecting that hydraulic oil temperature reaches preset temperature threshold, the temperature control normally close valve is opened, and the connecting pipeline is opened, hydraulic oil Enter oil cylinder through the cutting ferrule quick coupling.

The outer ring pedestal 8 being fixedly connected with the cylinder body 3 is wherein equipped with close to the screw thread hole location of the stretching head 1, The outside of the outer ring pedestal 8 is equipped with gear set 9, and inside is connected with the gear being connected with the gear set 9 and pulls out set 11, institute Stating gear set 9 includes intermeshing driving wheel 90 and driven wheel 91, and the driven wheel 91 pulls out set 11 with the gear and is connected.

Temperature control normally close valve is arranged in the technical solution on the fluid pressure line of pressure distributor, when the detecting means of temperature control normally close valve When sorting measures hydraulic oil temperature lower than preset temperature threshold, temperature control normally close valve keeps normally closed, cuts off the hydraulic of pressure distributor Pipeline；When the transducing part of temperature control normally close valve detects that hydraulic oil temperature reaches preset temperature threshold, temperature control normally close valve is opened, The fluid pressure line of pressure distributor is opened, and it can be used to guarantee to enter the hydraulic oil inside hydraulic elongator to be in suitable oil Temperature mainly avoids the too low service life for influencing hydraulic elongator of oil temperature under northern area cold environment.

Wherein the inner wall covering of the oil cylinder 3 is connected with composite layer 30.

Wherein the composite layer 30 respectively around the oil cylinder 3 both ends through the joint face at the oil cylinder both ends with The outer surface of hydraulic elongator outer housing is connected.

Oil cylinder and outer housing are integrally connected by the technical solution by composite layer 30, and the compressive resistance integrally born mentions Height, plays that cylinder body is explosion-proof, anti-crack function.

Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to In the utility model range claimed.

Claims (10)

1. a kind of protection linking hydraulic elongator, it is characterised in that: including stretching head, cutting ferrule quick coupling and structure is protected, The stretching head is equipped with annular protrusion at tail position, and the stretching head slidably connects therewith close to one end of threaded hole The corresponding piston of shape, the piston offset with the annular protrusion, and periphery is simultaneously sealedly connected with oil cylinder, the annular protrusion And disc spring is equipped between the piston and stretcher outer housing, sealing is provided between the oil cylinder and the corresponding piston Part is disposed with the cavity for being suitable for accommodating filled media within the sealing element, and the cavity, which is equipped with, to be suitable for being connected with the external world Interface, the cutting ferrule quick coupling include spiro union portion and abutting portion, the protection structure include protective shell, extension, sticking part, Screw, sealing ring, elastic component and conflict plate, the elastic component both ends are fixed with the conflict plate and protective shell top respectively Connection, the extension in a ring and are fixed on inside the protective shell, and the extension is equipped with seal groove, and the sealing ring is received It is dissolved in the seal groove, the sticking part is fixed on outside the protective shell, and the sticking part is fixed on described by the screw Stretcher outer housing, the screw, which is in compressive state, makes the abutting portion contact at the abutting portion to protect the spiro union portion The state that is spirally connected.

2. hydraulic elongator according to claim 1, it is characterised in that: be connected with check-valves built in the interface.

3. hydraulic elongator according to claim 1 or 2, it is characterised in that: the sealing element is suitable for sliding with the piston The sealing surface of dynamic connection is equipped with the sealing ring of at least one outwardly convex.

4. hydraulic elongator according to claim 1, it is characterised in that: be connected with card at the hydraulics inlet of the oil cylinder Quick coupling is covered, temperature control normally close valve is additionally provided on the connecting pipeline of the cutting ferrule quick coupling, when the temperature control normally close valve When transducing part detects hydraulic oil temperature lower than preset temperature threshold, the temperature control normally close valve keeps normally closed, closes the company Siphunculus road；When the transducing part of the temperature control normally close valve detects that hydraulic oil temperature reaches preset temperature threshold, the temperature control Normally close valve is opened, and the connecting pipeline is opened, and hydraulic oil enters oil cylinder through the cutting ferrule quick coupling.

5. hydraulic elongator according to claim 1, it is characterised in that: the screw thread hole location close to the stretching head is set There is outer ring pedestal, the outside of the outer ring pedestal is equipped with gear set, and inside is connected with the gear being connected with the gear set Set is pulled out, the gear set includes intermeshing driving wheel and driven wheel, and the driven wheel pulls out set with the gear and is connected.

6. hydraulic elongator according to claim 1, it is characterised in that: the inner wall covering of the oil cylinder is connected with composite wood The bed of material.

7. hydraulic elongator according to claim 6, it is characterised in that: the composite layer bypasses the oil respectively The both ends of cylinder are connected through the joint face at the oil cylinder both ends with the outer surface of hydraulic elongator outer housing.

8. hydraulic elongator according to claim 1, it is characterised in that: the protective shell is in U-shaped, the sealing ring point Do not fit in the cutting ferrule quick coupling and the seal groove to be sealed.

9. hydraulic elongator according to claim 1, it is characterised in that: the sticking part is perpendicular to the screw.

10. hydraulic elongator according to claim 1, it is characterised in that: the extension, the sticking part and described support Touch panel is parallel to each other.