CN110159612A - Telescoping cylinder and telescope support - Google Patents
Telescoping cylinder and telescope support Download PDFInfo
- Publication number
- CN110159612A CN110159612A CN201910562298.8A CN201910562298A CN110159612A CN 110159612 A CN110159612 A CN 110159612A CN 201910562298 A CN201910562298 A CN 201910562298A CN 110159612 A CN110159612 A CN 110159612A
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- Prior art keywords
- cylinder body
- cylinder
- cavity
- level
- rodless cavity
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- 238000007789 sealing Methods 0.000 claims description 18
- 238000005336 cracking Methods 0.000 claims description 13
- 239000010720 hydraulic oil Substances 0.000 description 21
- 239000003921 oil Substances 0.000 description 6
- 208000002925 dental caries Diseases 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1433—End caps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
Abstract
The present invention provides a kind of telescoping cylinder and telescope support, telescoping cylinder includes the first cylinder body, multiple second cylinder bodies and piston rod；The first connector and the second connector are provided on the casing wall of first cylinder body；Multiple second cylinder bodies are set in the first cylinder body, can be slided with respect to the first cylinder body, multiple cylinder bodies are successively arranged；Piston rod, which is set in multiple second cylinder bodies, to be located in innermost second cylinder body, can relatively multiple second cylinder body slidings；Third cavity is provided in piston rod, one end of piston rod is provided with third connector, and third connector is connected with third cavity；Wherein, first rodless cavity of the first cylinder body is connected with the first connector, first rod chamber of the first cylinder body is connected with the second connector, and the first rodless cavity is connected with the second rodless cavity of multiple second cylinder bodies, and the second rod chamber of multiple second cylinder bodies is connected with third cavity.The telescoping cylinder reduces the entire length of telescoping cylinder, can also flexibly move at the narrow place of underground.
Description
Technical field
The present invention relates to support technology fields, in particular to a kind of telescoping cylinder and telescope support.
Background technique
Currently, in underground work, due to the structural instability of the borehole wall, so needing to be supported by bracket.
In the related art, bracket includes hydraulic cylinder, and the cylinder body of hydraulic cylinder is installed on ground, and piston rod drives support portion
Part is raised above, and support member supports are on the roof in well, to ensure the stability of the borehole wall；It but is the row for ensuring piston rod
Journey, so that cylinder body length is longer, in well with a varied topography, bracket can not flexibly move at narrow space so that bracket without
Method is carried in underground fast and flexible.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, the first aspect of the present invention proposes a kind of telescoping cylinder.
The second aspect of the present invention proposes a kind of telescope support.
In view of this, the first aspect of the present invention provides a kind of telescoping cylinder, including the first cylinder body, multiple second cylinder bodies and
Piston rod；The first connector and the second connector are provided on the casing wall of first cylinder body；Multiple second cylinder bodies are set to the first cylinder
In vivo, it can be slided with respect to the first cylinder body, multiple cylinder bodies are successively arranged；Piston rod, which is set in multiple second cylinder bodies, is located at most inner side
The second cylinder body in, can multiple second cylinder bodies sliding relatively；Third cavity is provided in piston rod, one end of piston rod is provided with
Third connector, third connector are connected with third cavity；Wherein, the first rodless cavity of the first cylinder body and the first connector phase
Connection, the first rod chamber of the first cylinder body are connected with the second connector, the second nothing of the first rodless cavity and multiple second cylinder bodies
Rod cavity is connected, and the second rod chamber of multiple second cylinder bodies is connected with third cavity.
Telescoping cylinder provided by the present invention is provided with multiple second cylinder bodies and piston rod, so that telescoping cylinder at least has three
The flexible ability of grade, i.e., multiple second cylinder bodies at least have the flexible ability of two-stage, and piston rod has the flexible ability of level-one.In telescoping cylinder
When stretching, extension, the first connector enters the first rodless cavity as oil inlet (or air inlet), hydraulic oil (can also be compressed gas)
It is interior, outermost second cylinder movement is pushed, hydraulic oil is sequentially entered again in multiple second rodless cavities, successively pushes multiple the
Two rodless cavities stretch, and in the second rodless cavity for entering finally into outermost second cylinder body, push piston rod stretching, extension, and then realize
At least three-level stretches；Similarly, when telescoping cylinder retracts, the second connector as oil inlet and third connector as oil inlet,
Hydraulic oil is entered in the first rod chamber by the second connector, and outermost second cylinder body is pushed to retract, and hydraulic oil is connected by third
Interface enters in third cavity, then sequentially enters in multiple second rod chambers, and then drives piston rod and multiple second cylinders
Body retracts；Telescoping cylinder realizes that at least three-level is flexible, and automatic driving and automatic control can be achieved in multiple second cylinder bodies and piston
System.The telescoping cylinder reduces the whole of telescoping cylinder while guaranteeing certain flexible stroke, and ensure the enabling capabilities to the borehole wall
Body length, it is ensured that can also flexibly be moved at the narrow place of underground, it is ensured that telescoping cylinder can be carried in underground fast and flexible, so that flexible
Cylinder is more suitable for underground work with a varied topography.
In addition, the telescoping cylinder in above-mentioned technical proposal provided by the invention can also have following additional technical feature:
In the above-mentioned technical solutions, it is preferable that multiple second cylinder bodies include at least level-one cylinder body and second level cylinder body；First-stage cylinder
First through hole is provided on body, the second rodless cavity of level-one cylinder body is connected by first through hole with the first rodless cavity；Secondary cylinder
Body is set in first-stage cylinder body, and first through hole is provided on level-one cylinder body, and the second rodless cavity of second level cylinder body passes through the second through-hole
It is connected with the second rodless cavity of level-one cylinder body.
In the technical scheme, it is provided with first through hole on level-one cylinder body, realizes the second rodless cavity and two of level-one cylinder body
The connection of second rodless cavity of grade cylinder body, it is ensured that hydraulic oil smooth outflow in level-one cylinder body and secondary cylinder body, and then ensure more
A second cylinder body stable operation.
In any of the above-described technical solution, it is preferable that telescoping cylinder further includes the first valve and the second valve；First valve peace
At first through hole, to control the on-off between the second rodless cavity of level-one cylinder body and the first rodless cavity；Second valve peace
Loaded on the second through hole, to control the on-off of the second rodless cavity of second level cylinder body and the second rodless cavity of level-one cylinder body；Wherein,
Cracking pressure of the cracking pressure of first valve less than the second valve.
In the technical scheme, the first valve is to control between the second rodless cavity of level-one cylinder body and the first rodless cavity
On-off, the second valve to control logical between the second rodless cavity of second level cylinder body and the second rodless cavity of level-one cylinder body or
It is disconnected, since the cracking pressure of the first valve is less than the cracking pressure of the second valve, enters in the first rodless cavity, push away in hydraulic oil
Dynamic level-one cylinder body stretching, extension, after level-one cylinder body moves to end of travel, hydraulic fluid pressure starts to be promoted, in the first rodless cavity
After hydraulic oil reaches certain pressure, the first valve opening, hydraulic oil is entered in the rodless cavity of level-one cylinder body, pushes second level cylinder body
Movement, when second level cylinder body moves to end of travel, the pressure of hydraulic oil is continued growing, when being increased again to certain pressure,
Second valve opening, hydraulic oil enter in third cavity, and then piston rod is pushed to continue to move；Telescoping cylinder passes through setting first
Valve and the second valve can be respectively controlled the multistage cylinder body of telescoping cylinder, so that the control to stroke is more accurate.
Preferably, the cracking pressure of the first valve is 4MPa, and the cracking pressure of the second valve is 10MPa.
In any of the above-described technical solution, it is preferable that piston rod includes ontology, second end cover and third end cap；Ontology is in
Tubulose；Second end cover is fastened on one end of ontology, is set in multiple second cylinder bodies；Third end cap is fastened on the another of ontology
End, third connector are set on third end cap；Wherein, ontology, second end cover and third end cap, which enclose, sets out third cavity.
In the technical scheme, in a tubular form, second end cover and third end cap are fastened on the two sides of ontology to ontology respectively, true
While the function of keep-alive stopper rod, the difficulty of processing of piston rod is reduced.
In any of the above-described technical solution, it is preferable that be provided with mounting hole, radial direction of the mounting hole along ontology on third end cap
Setting.
In the technical scheme, by the way that mounting hole is arranged on third end cap, the support portion of bracket is mountable to mounting hole
On.
In any of the above-described technical solution, it is preferable that the first cylinder body is provided with the first cavity open at one end, and multiple second
Cylinder body will be divided into the first rodless cavity and the first rod chamber between the first cavity.
In the technical scheme, the first cylinder body is provided with the first cavity open at one end, and the second cylinder body is plugged in the first chamber
In vivo, and it may pass through that the first cylinder body is open at one end to be flexed outward.Outermost cylinder body divides the first cavity in multiple second cylinder bodies
Cut out the first rodless cavity and the first rod chamber.
In any of the above-described technical solution, it is preferable that the first cylinder body further includes the first cylinder barrel and first end cover, the first cylinder barrel
In a tubular form；First end cover is fastened on one end of the first cylinder barrel；Wherein, first end cover and the first cylinder barrel, which enclose, is set as the first cavity.
In the technical scheme, in a tubular form, first end cover is fastened on one end of the first cylinder barrel to the first cylinder barrel, and then surrounds
One cavity, it is ensured that the processing is simple for the first cylinder body, convenient.
In any of the above-described technical solution, it is preferable that any second cylinder body is provided with the second chamber in multiple second cylinder bodies
Body, multiple cylinder bodies are successively arranged, and the second rod chamber and the second rodless cavity will be divided between the second cavity.
In the technical scheme, each second cylinder body is provided with the second cavity, and multiple second cylinder bodies are successively arranged, inside
The second cylinder body the second cavity of second cylinder body in adjacent outside is divided into the second rod chamber and the second rodless cavity.
In any of the above-described technical solution, it is preferable that telescoping cylinder further includes first the second sealing ring of sealing ring；First sealing
Snare is set in multiple second cylinder bodies on second cylinder body, and with another second cylinder body or the first cylinder in multiple second cylinder bodies
Mates；Second sealing ring is sheathed on piston rod, and is matched with innermost second cylinder body is located in multiple second cylinder bodies
It closes.
In the technical scheme, telescoping cylinder is realized by the first sealing ring of setting and the second sealing ring between cylinder body
Sealing and the sealing between piston rod and cylinder body.
Second aspect of the present invention provides a kind of telescope support, including the telescoping cylinder as described in any of the above-described technical solution,
Therefore the telescope support includes whole beneficial effects of the telescoping cylinder as described in any of the above-described technical solution.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the structural schematic diagram of telescoping cylinder according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagrams of telescoping cylinder according to another embodiment of the invention；
Wherein, the appended drawing reference in Fig. 1 and Fig. 2 and the corresponding relationship between component names are as follows:
1 first cylinder body, 12 first connectors, 14 second connectors, 16 first cavitys, 162 first rodless cavities, 164 first
Rod chamber, 18 first cylinder barrels, 19 first end covers, 2 second cylinder bodies, 22 level-one cylinder bodies, 24 second level cylinder bodies, 26 second cavitys, 262
Two rodless cavities, 264 second rod chambers, 3 piston rods, 32 ontologies, 34 second end covers, 36 third end caps, 37 mounting holes, 38 thirds connect
Interface, 39 third cavitys, 4 first valves, 5 second valves.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The telescoping cylinder described according to some embodiments of the invention and telescope support are described referring to Fig. 1 and Fig. 2.
In first aspect present invention embodiment, as depicted in figs. 1 and 2, the present invention provides a kind of telescoping cylinders, including
One cylinder body 1, multiple second cylinder bodies 2 and piston rod 3；The first connector 12 and the second connection are provided on the casing wall of first cylinder body 1
Mouth 14；Multiple second cylinder bodies 2 are set in the first cylinder body 1, can be slided with respect to the first cylinder body 1, multiple cylinder bodies are successively arranged；Piston
Bar 3, which is set in multiple second cylinder bodies 2, to be located in innermost second cylinder body 2, can relatively multiple slidings of second cylinder bodies 2；Piston
Third cavity 39 is provided in bar 3, one end of piston rod 3 is provided with third connector 38, third connector 38 and third cavity
39 are connected；Wherein, the first rodless cavity 162 of the first cylinder body 1 is connected with the first connector 12, and the first of the first cylinder body 1 has
Rod cavity 164 is connected with the second connector 14, and the first rodless cavity 162 is connected with the second rodless cavity 262 of multiple second cylinder bodies 2
Logical, the second rod chamber 264 of multiple second cylinder bodies 2 is connected with third cavity 39.
In this embodiment, telescoping cylinder is provided with multiple second cylinder bodies 2 and piston rod 3, so that telescoping cylinder at least has three
The flexible ability of grade, i.e., multiple second cylinder bodies 2 at least have the flexible ability of two-stage, and piston rod 3 has the flexible ability of level-one.Flexible
When cylinder stretches, the first connector 12 is used as oil inlet (or air inlet), and hydraulic oil (can also be compressed gas) enters the first nothing
In rod cavity 162, outermost second cylinder movement is pushed, hydraulic oil is sequentially entered again in multiple second rodless cavities 262, successively
It pushes multiple second rodless cavities 262 to stretch, enters finally into the second rodless cavity 262 of outermost second cylinder body 2, push and live
Stopper rod 3 stretches, and then realizes that at least three-level stretches, and as described in Figure 1, telescoping cylinder is in extended state；Similarly, telescoping cylinder retracts
When, the second connector 14 is used as oil inlet as oil inlet and third connector 38, and hydraulic oil is entered by the second connector 14
In first rod chamber 164, outermost second cylinder body 2 is pushed to retract, hydraulic oil enters third cavity by third connector 38
It in 39, then sequentially enters in multiple second rod chambers 264, and then piston rod 3 and multiple second cylinder bodies 2 is driven to retract, such as Fig. 2
Shown, telescoping cylinder is in retracted mode；Telescoping cylinder realizes that at least three-level is flexible, and multiple second cylinder bodies 2 and piston can be real
Now driving and automatic control automatically.The telescoping cylinder is guaranteeing certain flexible stroke, and ensures to the same of the enabling capabilities of the borehole wall
When, reduce the entire length of telescoping cylinder, it is ensured that can also flexibly move at the narrow place of underground, it is ensured that telescoping cylinder can be fast in underground
It is fast flexibly to carry, so that telescoping cylinder is more suitable for underground work with a varied topography.
In one embodiment of the invention, it is preferable that as depicted in figs. 1 and 2, multiple second cylinder bodies 2 include at least one
Grade cylinder body 22 and second level cylinder body 24；First through hole is provided on level-one cylinder body 22, the second rodless cavity 262 of level-one cylinder body 22 passes through
First through hole is connected with the first rodless cavity 162；Second level cylinder body 24 is set in level-one cylinder body 22, is provided on level-one cylinder body 22
Second rodless cavity 262 of first through hole, second level cylinder body 24 is connected by the second through-hole with the second rodless cavity 262 of level-one cylinder body 22
It is logical.
In this embodiment, it is provided with first through hole on level-one cylinder body 22, realizes the second rodless cavity 262 of level-one cylinder body 22
With the connection of the second rodless cavity 262 of second level cylinder body 24, it is ensured that hydraulic oil smooth stream in level-one cylinder body 22 and second level cylinder body 24
It is dynamic, and then ensure multiple second cylinder body, 2 stable operations.
In one embodiment of the invention, it is preferable that as depicted in figs. 1 and 2, telescoping cylinder further includes 4 He of the first valve
Second valve 5；First valve 4 is installed at first through hole, to control the second rodless cavity 262 and first of level-one cylinder body 22 without bar
On-off between chamber 162；Second valve 5 is installed on the second through hole, with control the second rodless cavity 262 of second level cylinder body 24 with
The on-off of second rodless cavity 262 of level-one cylinder body 22；Wherein, unlatching of the cracking pressure of the first valve 4 less than the second valve 5
Pressure.
In this embodiment, second rodless cavity 262 and first rodless cavity of first valve 4 to control level-one cylinder body 22
On-off between 162, second rodless cavity 262 and the second of level-one cylinder body 22 of second valve 5 to control second level cylinder body 24
On-off between rodless cavity 262, due to the first valve 4 cracking pressure less than the second valve 5 cracking pressure, in hydraulic oil
It enters in the first rodless cavity 162, level-one cylinder body 22 is pushed to stretch, after level-one cylinder body 22 moves to end of travel, hydraulic oil
Pressure starts to be promoted, and after the hydraulic oil in the first rodless cavity 162 reaches certain pressure, the first valve 4 is opened, and hydraulic oil enters
Into the rodless cavity of level-one cylinder body 22, second level cylinder body 24 is pushed to move, when second level cylinder body 24 moves to end of travel, hydraulic oil
Pressure continue growing, when being increased again to certain pressure, the second valve 5 is opened, and hydraulic oil enters in third cavity 39,
And then piston rod 3 is pushed to continue to move；Telescoping cylinder, can be to the Multi-stage cylinder of telescoping cylinder by the first valve 4 of setting and the second valve 5
Body is respectively controlled, so that the control to stroke is more accurate.
Preferably, the cracking pressure of the first valve 4 is 4MPa, and the cracking pressure of the second valve 5 is 10MPa.
In one embodiment of the invention, it is preferable that as depicted in figs. 1 and 2, piston rod 3 includes ontology 32, second end
Lid 34 and third end cap 36；Ontology 32 is in a tubular form；Second end cover 34 is fastened on one end of ontology 32, is set to multiple second cylinder bodies
In 2；Third end cap 36 is fastened on the other end of ontology 32, and third connector 38 is set on third end cap 36；Wherein, ontology
32, second end cover 34 and third end cap 36, which enclose, sets out third cavity 39.
In this embodiment, in a tubular form, second end cover 34 and third end cap 36 are fastened on the two of ontology 32 to ontology 32 respectively
Side reduces the difficulty of processing of piston rod 3 while ensuring the function of piston rod 3.
In one embodiment of the invention, it is preferable that as depicted in figs. 1 and 2, be provided with mounting hole on third end cap 36
37, mounting hole 37 is arranged radially along ontology 32.
In this embodiment, by the way that mounting hole 37 is arranged on third end cap 36, the support portion of bracket is mountable to install
On hole 37.
In one embodiment of the invention, it is preferable that as depicted in figs. 1 and 2, the first cylinder body 1 is provided with open at one end
The first cavity 16, multiple second cylinder bodies 2 will be divided into the first rodless cavity 162 and the first rod chamber 164 between first cavity 16.
In this embodiment, the first cylinder body 1 is provided with the first cavity 16 open at one end, and the second cylinder body 2 is plugged in first
In cavity 16, and it may pass through that the first cylinder body 1 is open at one end to be flexed outward.Outermost cylinder body is by first in multiple second cylinder bodies 2
Cavity 16 is partitioned into the first rodless cavity 162 and the first rod chamber 164.
In one embodiment of the invention, it is preferable that as depicted in figs. 1 and 2, the first cylinder body 1 further includes the first cylinder barrel
18 and first end cover 19, the first cylinder barrel 18 is in a tubular form；First end cover 19 is fastened on one end of the first cylinder barrel 18；Wherein, first end
Lid 19 and the first cylinder barrel 18, which enclose, is set as the first cavity 16.
In this embodiment, in a tubular form, first end cover 19 is fastened on one end of the first cylinder barrel 18, Jin Erwei to the first cylinder barrel 18
At the first cavity 16, it is ensured that the processing is simple for the first cylinder body 1, convenient.
In one embodiment of the invention, it is preferable that as depicted in figs. 1 and 2, any second in multiple second cylinder bodies 2
Cylinder body 2 is provided with the second cavity 26, and multiple cylinder bodies are successively arranged, and the second rod chamber 264 and will be divided between the second cavity 26
Two rodless cavities 262.
In this embodiment, each second cylinder body 2 is provided with the second cavity 26, and multiple second cylinder bodies 2 are successively arranged, interior
Second cavity 26 of second cylinder body 2 in adjacent outside is divided into the second rod chamber 264 and second without bar by the second cylinder body 2 of side
Chamber 262.
In one embodiment of the invention, it is preferable that telescoping cylinder further includes first the second sealing ring of sealing ring；First is close
Seal is sheathed in multiple second cylinder bodies 2 on second cylinder body 2, and with another second cylinder body 2 in multiple second cylinder bodies 2 or
First cylinder body 1 matches；Second sealing ring is sheathed on piston rod 3, and in multiple second cylinder bodies 2 be located at innermost second
Cylinder body 2 matches.
In this embodiment, telescoping cylinder is realized by the first sealing ring of setting and the second sealing ring to close between cylinder body
Envelope and the sealing between piston rod 3 and cylinder body.
Preferably, telescoping cylinder is hydraulic cylinder or cylinder.
In second aspect of the present invention embodiment, the present invention provides a kind of telescope supports, including such as any of the above-described implementation
Telescoping cylinder described in example, therefore the telescope support includes whole beneficial effects of the telescoping cylinder as described in above-mentioned any embodiment.
In the description of the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly, term
The orientation or positional relationship of the instructions such as "upper", "lower" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention；Term " connection ", " installation ", " fixation " etc. should all
It is interpreted broadly, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be straight
Connect it is connected, can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, the description meaning of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present invention, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And
And the particular features, structures, materials, or characteristics of description can be in any one or more of the embodiments or examples with suitable
Mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of telescoping cylinder characterized by comprising
First cylinder body is provided with the first connector and the second connector on the casing wall of first cylinder body；
Multiple second cylinder bodies, the multiple second cylinder body are set in first cylinder body, can first cylinder body sliding relatively,
The multiple cylinder body is successively arranged；
Piston rod, the piston rod, which is set in the multiple second cylinder body, to be located in innermost second cylinder body, can be with respect to institute
State multiple second cylinder body slidings；
Third cavity is provided in the piston rod, one end of the piston rod is provided with third connector, the third connection
Mouth is connected with the third cavity；
Wherein, the first rodless cavity of first cylinder body is connected with first connector, and the first of first cylinder body has
Rod cavity is connected with second connector, and first rodless cavity is connected with the second rodless cavity of the multiple second cylinder body
Logical, the second rod chamber of the multiple second cylinder body is connected with the third cavity.
2. telescoping cylinder according to claim 1, which is characterized in that the multiple second cylinder body includes at least:
Level-one cylinder body, is provided with first through hole on the level-one cylinder body, and the second rodless cavity of the level-one cylinder body passes through described the
One through-hole is connected with first rodless cavity；
Second level cylinder body, the second level cylinder body are set in the first-stage cylinder body, and the second through-hole, institute are provided on the second level cylinder body
The second rodless cavity for stating second level cylinder body is connected by second through-hole with the second rodless cavity of the level-one cylinder body.
3. telescoping cylinder according to claim 2, which is characterized in that further include:
First valve, first valve are installed at the first through hole, to control the second rodless cavity of the level-one cylinder body
With the on-off between first rodless cavity；
Second valve, second valve are installed on second through hole, to control the second rodless cavity of the second level cylinder body
With the on-off of the second rodless cavity of the level-one cylinder body；
Wherein, the cracking pressure of first valve is less than the cracking pressure of second valve.
4. telescoping cylinder according to claim 1, which is characterized in that the piston rod includes:
Ontology, the ontology is in a tubular form；
Second end cover, the second end cover are fastened on one end of the ontology, are set in the multiple second cylinder body；
Third end cap, the third end cap are fastened on the other end of the ontology, and the third connector is set to the third
On end cap；
Wherein, the ontology, the second end cover and the third end cap, which enclose, sets out the third cavity.
5. telescoping cylinder according to claim 4, which is characterized in that
Mounting hole is provided on the third end cap, the mounting hole is arranged radially along the ontology.
6. telescoping cylinder according to claim 1, which is characterized in that
First cylinder body is provided with the first cavity open at one end, and the multiple second cylinder body will be divided between first cavity
First rodless cavity and first rod chamber.
7. telescoping cylinder according to claim 6, which is characterized in that first cylinder body further include:
First cylinder barrel, first cylinder barrel is in a tubular form；
First end cover, the first end cover are fastened on one end of first cylinder barrel；
Wherein, the first end cover and first cylinder barrel, which enclose, is set as first cavity.
8. telescoping cylinder according to any one of claim 1 to 7, which is characterized in that
Any second cylinder body is provided with the second cavity in the multiple second cylinder body, and the multiple cylinder body is successively arranged, by institute
It states and is divided into the second rod chamber and the second rodless cavity between the second cavity.
9. telescoping cylinder according to any one of claim 1 to 7, which is characterized in that further include:
First sealing ring, first sealing ring are sheathed in the multiple second cylinder body on second cylinder body, and with it is described
Another second cylinder body or the first cylinder body match in multiple second cylinder bodies；
Second sealing ring, second sealing ring are sheathed on the piston rod, and are located at most with the multiple second cylinder body
Second cylinder body of inside matches.
10. a kind of telescope support characterized by comprising telescoping cylinder as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562298.8A CN110159612A (en) | 2019-06-26 | 2019-06-26 | Telescoping cylinder and telescope support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562298.8A CN110159612A (en) | 2019-06-26 | 2019-06-26 | Telescoping cylinder and telescope support |
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| CN110159612A true CN110159612A (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910562298.8A Pending CN110159612A (en) | 2019-06-26 | 2019-06-26 | Telescoping cylinder and telescope support |
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| Country | Link |
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| CN (1) | CN110159612A (en) |
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| CN111775074A (en) * | 2020-07-20 | 2020-10-16 | 佛山市宏石激光技术有限公司 | Workpiece clamping method using differential pressure type pneumatic clamp |
| CN111775075A (en) * | 2020-07-20 | 2020-10-16 | 佛山市宏石激光技术有限公司 | Differential pressure type pneumatic clamp |
| CN112627662A (en) * | 2020-12-28 | 2021-04-09 | 北京北方华创微电子装备有限公司 | Semiconductor process equipment and door opening mechanism |
| CN112682608A (en) * | 2021-03-11 | 2021-04-20 | 天津金海通半导体设备股份有限公司 | Follow-up telescopic cylinder device for conveying high-temperature and low-temperature liquid |
| CN113816286A (en) * | 2021-09-26 | 2021-12-21 | 三一汽车起重机械有限公司 | Telescopic cylinder, crane boom and crane |
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| CN113816286B (en) * | 2021-09-26 | 2023-08-22 | 三一汽车起重机械有限公司 | Telescopic cylinder, crane boom and crane |
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