CN104879569B - A kind of air damping fluid pressure line weakening pipe clamp - Google Patents
A kind of air damping fluid pressure line weakening pipe clamp Download PDFInfo
- Publication number
- CN104879569B CN104879569B CN201510183904.7A CN201510183904A CN104879569B CN 104879569 B CN104879569 B CN 104879569B CN 201510183904 A CN201510183904 A CN 201510183904A CN 104879569 B CN104879569 B CN 104879569B
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- CN
- China
- Prior art keywords
- pipe clamp
- hole
- screw
- cover plate
- plunger rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
Abstract
A kind of air damping fluid pressure line weakening pipe clamp, it is mainly: be provided with lower tube clip on pipe clamp lower cover, this lower tube clip top is provided with the semicolumn groove of opening upwards, it is arranged above with matched upper pipe clamp at lower tube clip, on upper pipe clamp, in-plane is provided with screw, it is threadeded with plunger rod lower end, this plunger rod is located in the central through hole of pipe clamp upper cover plate, it is provided with pilot seal assembly between the two, above-mentioned plunger rod top side face is provided with Assembled sliding annular seal, it contacts with pipe clamp upper cover plate central through hole, this pipe clamp upper cover plate central through hole is threadeded with air chamber inferior part of the cylinder block, it is respectively equipped with cooling gas check valve and damping piece in this air chamber inferior part of the cylinder block two screw, air chamber cylinder body upper end is provided with charge valve, above-mentioned pipe clamp upper cover plate, upper pipe clamp, lower tube clip and pipe clamp lower cover are connected by two screw rods.Present configuration is compact, overcomes tradition pipe clamp big to pipe-line system impact, and the shortcoming of poor reliability can well eliminate the vibration of fluid pressure line.
Description
Technical field
The present invention relates to the pipe clamp of a kind of fluid pressure line.
Background technology
Pipeline is the primary element of hydrodynamic transmission system, is widely used in various industrial circle.At pipeline
In system actual condition, due to the architectural feature of hydraulic pump, the compressibility of fluid, fluid conveying machine
In vibration transmission and pipeline, valve is turned on and off frequently, all can cause the vibration of pipeline.At Large Tube
Road system, the resonance of pipeline shows the most prominent, and it not only can cause structural fatigue to lose efficacy, the most thus
Cause piping to destroy, cause great economic loss.The vibration of pipeline mainly by pipe interior fluid and with pipe
The external equipment that road is connected causes.Its control vibrated is broadly divided into and actively controls and passive control.Pipeline
Active Vibration Control can control effect to system and frequency range carries out bigger adjustment, but its shortcoming
Being vibration and the complexity of noise and randomness, it is the most complicated that it realizes process, and the investment of control system is the biggest.
Use passive control technology will not too increase volume and the structural complexity of system, and need not from the external world
Input energy, the cost of passive control system is low to be easily achieved, and is therefore that a class application is vibrated the most widely
Control technology.
Pipe clamp is the important component part in pipe-line system, and it is while playing support and fixing pipeline effect,
Also it is the intermediary of vibrational energy transmission between pipeline and system.Along with pipeline vibration and noise reducing place of working deepens continuously,
The dynamics research of pipe clamp is just seemed more and more important, and this research is for simplifying pipe-line system further
The most significant.Due to the judder of pipeline, easily cause pipe clamp and loosen, reduce the reliable of system
Property.The relatively common vibration damping mode used on pipe clamp at present is to add resistance between pipe clamp and pipeline contact face
Damping material, the energy of pipeline vibration of decaying.But this method is for Large Hydraulic System, its absorbing is imitated
Fruit is the most inconspicuous.And, the vibration abrasion of pipeline, is to produce at pipeline and pipe clamp owing to pipeline vibration causes
Relative displacement and collision and the friction surface damage that formed.Especially for traditional Duct fixing clamp, pipeline and pipe
The mutual collision friction of folder is even more serious, while causing pipe clamp to loosen, the most also can make pipeline surface shape
Significantly abrasion is become to cause conduit failure.In the conduit under fluid pressure that some pressure fluctuations are bigger, also there will be
The fault of tube wall explosion.
Summary of the invention
It is an object of the invention to provide a kind of vibration that can effectively reduce system under complex vibration change condition
And improve the air damping fluid pressure line weakening pipe clamp of pipe clamp and pipeline service life.The present invention mainly passes through
Air damping consumes pipe vibration energy, realizes reducing the purpose of pipeline vibration.
The present invention is achieved in that and the invention mainly comprises: charge valve, air chamber cylinder body, damping piece, spiral shell
Bar, plunger rod, pipe clamp upper cover plate, upper pipe clamp, lower tube clip, pipe clamp lower cover, Damping material layer, gas
Check valve, pilot seal assembly and air leakage indicating device.Wherein, pipe clamp lower cover is provided with securing member
Through hole, in order to pipe clamp lower cover is fixed on stationary plane by securing member.In the through hole of pipe clamp lower cover
Side is provided with two identical screws. the upper shed of good each screw is provided with location boss.Under pipe clamp
Cover plate is provided with lower tube clip, and this lower tube clip is the semicolumn groove being provided with opening upwards on cuboid matrix top,
The plane of symmetry of this semicolumn groove is same with the median plane in cuboid length thereof direction.At lower tube clip half
The Damping material layer corresponding with its radius of curvature it is provided with in cylinder groove.In lower tube clip semicolumn groove both sides respectively
Being provided with two vertical screws, the centrage of the two screw is concentricity with the screw on pipe clamp lower cover respectively
Line, preferably sets the groove corresponding with pipe clamp lower cover convex platform outside the screw of lower tube clip lower plane, both
Cooperation can conveniently be loaded and unloaded.Being arranged above with matched upper pipe clamp at lower tube clip, on this, pipe clamp is at cuboid
Matrix underpart is provided with the semicolumn groove that Open Side Down, the plane of symmetry of this semicolumn groove and cuboid length thereof side
To median plane be same, in upper pipe clamp semicolumn groove, be provided with the damping corresponding with its radius of curvature
Material layer.It is respectively provided on two sides with two vertical through holes, the center of the two through hole at upper pipe clamp semicolumn groove
Line line concentricity with the screw on pipe clamp lower cover respectively.On upper pipe clamp, in-plane is provided with screw, its with
Plunger rod lower end is threaded.This plunger rod is located in the central through hole of pipe clamp upper cover plate, is provided with between the two
Pilot seal assembly.This pilot seal assembly bottom is provided with upper shed circular groove shape gland, this gland outer peripheral face
Slotted eye outside with pipe clamp upper cover plate central through hole under shed is corresponding, and gland center is provided with more than plunger rod external diameter
Through hole, be provided with dust ring between this through hole and plunger rod.In gland, be provided with fairlead, its underpart be with
The disk that gland circular groove is corresponding, its top is the pipe being enclosed within plunger rod, and fairlead and plunger rod it
Between be provided with sealing ring.Above-mentioned plunger rod top side face is provided with Assembled sliding annular seal, its with pipe clamp on
Cover plate central through hole contacts.This pipe clamp upper cover plate central through hole top is provided with female thread, itself and air chamber cylinder body
External screw thread on lower cylinder connects, and sets two axis and air chamber cylinder in the cylinder of this air chamber inferior part of the cylinder block
The screw that body axis is parallel, is respectively equipped with cooling gas check valve and damping piece in two screws, and this damping piece is similar to
Screw, and with central through hole, the damping piece central through hole internal diameter provisioned in pipe clamp on different pipelines is different,
Demand with satisfied different pipeline weakenings.Air chamber cylinder body top is hollow housing, and its upper end is provided with through hole,
Through hole is provided with charge valve, is provided with inflation valve bonnet outside best charge valve.Above-mentioned is located at above pipe clamp
Pipe clamp upper cover plate central through hole is respectively provided on two sides with two vertical through holes, and the centrage of the two through hole is respectively
Line concentricity with the through hole on upper pipe clamp, is respectively equipped with two screw rods in the two through hole, they are from top to bottom
Being each passed through pipe clamp upper cover plate and upper pipe clamp, threadeds with lower tube clip and pipe clamp lower cover in lower end.Separately at pipe
Folder upper cover plate is provided with the through hole connected with plunger rod and air chamber cylinder body institute clip space, and the outer end of this through hole is provided with
Air leakage indicating device, this air leakage indicating device has an opening towards the circular groove shape pressure cap in hole, its periphery wall
Threadeding with pipe clamp upper cover plate, pressure cap center is provided with the through hole more than indicating arm external diameter, this through hole and instruction
Being provided with dust ring between bar, indicating arm is positioned at one end of device and is fixed on disc-shaped base, opens at pressure cap
In the end edge of mouth, ecto-entad is sequentially provided with back-up ring, spacer ring and the sealing that internal diameter is corresponding with indicating arm base external diameter
Molectron, is provided with spring between pressure cap and indicating arm base.
The present invention compared with prior art has the advantage that
1, the present invention passes through damping energy dissipation, reduces the vibration impact on pipeline；Gases at high pressure pass through check valve
Pipe clamp is made to be in clamped condition all the time, it is to avoid pipeline and the separation of pipe clamp in vibration processes；Pipe clamp and pipeline
Contact surface has damping material, reaches shock attenuation result.
2, damper mechanism of the present invention can reduce fixing bolt looseness or the probability of bolt thread damage, therefore
Pipe clamp can be prevented effectively from loosen, extend the service life of pipe clamp.
Accompanying drawing explanation
Fig. 1 is that the master of the present invention regards generalized section.
Fig. 2 is the side elevational cross-section schematic diagram of the present invention.
Fig. 3 is the schematic top plan view of the present invention.
Fig. 4 is the close-up schematic view of air leakage indicating device in Fig. 2.
In figure: 1, inflation valve bonnet, 2, charge valve, 3, air chamber cylinder body, 4, damping piece, 5, bolt, 6,
Plunger rod, 7, pipe clamp upper cover plate, 8, upper pipe clamp, 9, lower tube clip, 10, pipe clamp lower cover, 11, damping
Material layer, 12, gland, 13, dust ring, 14, sealing ring, 15, fairlead, 16, Assembled sliding
Annular seal, 17, cooling gas check valve, 18, seal assembly, 19, spacer ring, 20, back-up ring, 21, pressure
Cap, 22, dust ring, 23, indicating arm, 24, spring.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings:
In the schematic diagram of a kind of air damping fluid pressure line weakening pipe clamp shown in Fig. 1, Fig. 2 and Fig. 3, pipe
Folder lower cover 10 is provided with the through hole of securing member, be provided with inside the through hole of pipe clamp lower cover two identical
Screw, the upper shed of each screw is provided with location boss.Pipe clamp lower cover is provided with lower tube clip 9, should
Lower tube clip is the semicolumn groove being provided with opening upwards on cuboid matrix top, the plane of symmetry of this semicolumn groove with
The median plane in cuboid length thereof direction is same.It is provided with and its curvature in lower tube clip semicolumn groove
The Damping material layer 11 that radius is corresponding.It is respectively provided on two sides with two vertical screws at lower tube clip semicolumn groove,
The centrage of the two screw line concentricity with the screw on pipe clamp lower cover respectively, at lower tube clip lower plane
The groove corresponding with pipe clamp lower cover convex platform is set outside screw.It is arranged above with matched upper at lower tube clip
Pipe clamp 8, on this, pipe clamp is to be provided with, at cuboid matrix underpart, the semicolumn groove that Open Side Down, this semicolumn groove
The plane of symmetry is same with the median plane in cuboid length thereof direction, is provided with in upper pipe clamp semicolumn groove
The Damping material layer corresponding with its radius of curvature.It is respectively provided on two sides with two vertically at upper pipe clamp semicolumn groove
Through hole, the centrage of the two through hole line concentricity with the screw on pipe clamp lower cover respectively.At upper pipe clamp
Upper in-plane is provided with screw, and it is threadeded with plunger rod 6 lower end.This plunger rod is located at pipe clamp upper cover plate 7
Central through hole in, be provided with pilot seal assembly between the two.This pilot seal assembly bottom is provided with out
Mouthful circular groove shape gland 12, this gland outer peripheral face with pipe clamp upper cover plate central through hole under shed outside slotted eye corresponding,
Gland center is provided with the through hole more than plunger rod external diameter, is provided with dust ring 13 between this through hole and plunger rod.?
Being provided with fairlead 15 in gland, its underpart is the disk corresponding with gland circular groove, and its top is for being enclosed within plunger rod
On pipe, and between fairlead and plunger rod, be provided with sealing ring 14.Set on the side face of above-mentioned plunger rod top
Having Assembled sliding annular seal 16, it contacts with pipe clamp upper cover plate central through hole.In this pipe clamp upper cover plate
Heart through hole top is provided with female thread, and it is connected with the external screw thread on air chamber cylinder body 3 lower cylinder, this air chamber
Set the screw that two axis are parallel with air chamber cylinder body axis, in the cylinder of inferior part of the cylinder block in two screws respectively
Being provided with cooling gas check valve 17 and damping piece 4, this damping piece is similar to screw, and with central through hole.Air chamber cylinder
Body top is hollow housing, and its upper end is provided with through hole, is provided with charge valve 1, is provided with outside charge valve on through hole
Inflation valve bonnet 2.Above-mentioned it be located at the pipe clamp upper cover plate central through hole above pipe clamp and be respectively provided on two sides with two and erect
Straight through hole, the centrage of the two through hole line concentricity with the through hole on upper pipe clamp, the two through hole respectively
In be respectively equipped with two screw rods 5, they are from top to bottom each passed through pipe clamp upper cover plate and upper pipe clamp, lower end with under
Pipe clamp and pipe clamp lower cover are threaded.Another be provided with on pipe clamp upper cover plate with plunger rod and air chamber cylinder body folded by
The through hole of space connection, the outer end of this through hole is provided with air leakage indicating device, and as shown in Figure 4, this gas leakage indicates
Device has an opening towards the circular groove shape pressure cap 21 in hole, and its periphery wall is threadeded with pipe clamp upper cover plate,
Pressure cap center is provided with the through hole more than indicating arm 23 external diameter, is provided with dust ring 22 between this through hole and indicating arm,
Indicating arm is positioned at one end of device and is fixed on disc-shaped base, ecto-entad in the end edge of pressure cap opening
It is sequentially provided with the internal diameter back-up ring 20 corresponding with indicating arm base external diameter, spacer ring 19 and seal assembly 18,
Spring 24 it is provided with between pressure cap and indicating arm base.
The work process of the present invention approximately as: be filled with certain gases at high pressure by charge valve 2 to air chamber cylinder body,
Gases at high pressure give upper pipe clamp 8 pretightning force by cooling gas check valve 17, make pipeline by upper pipe clamp 8 and lower tube clip 9
Clamping.When pipeline because flow pulsation, mechanical vibration and when producing strong vibration, upper pipe clamp 8 can be along with
Pipeline vibration and move.When upper pipe clamp 8 moves upward, plunger rod 6 moves upward compression air chamber's gas,
Compeling to pass the gas through damping piece 4 and enter plenum chamber, gas will vibrate produced energy through damping hole
Consume, and plunger rod 6 and pipe clamp upper cover plate 7 will occur relative motion, the micro gap between them
Damping effect can be formed and consumed energy；When the displacement of upper pipe clamp 8 arrives maximum, in air chamber cylinder body
Gases at high pressure promote plunger rod 6 by cooling gas check valve 17, make pipeline Rapid reset.During normal condition, institute
State indicating arm holddown spring under gases at high pressure effect of air leakage indicating device, expose head；Work as gases at high pressure
When inevitable generation leaks and affects the effect of pipe clamp absorbing, the indicating arm 23 in described air leakage indicating device
Will indentation pipe clamp upper cover plate, prompting gas leakage under spring force.
Claims (5)
1. an air damping fluid pressure line weakening pipe clamp, it is characterised in that: pipe clamp lower cover is provided with fastening
The through hole of part, is provided with two identical screws inside the through hole of pipe clamp lower cover, sets on pipe clamp lower cover
Having lower tube clip, this lower tube clip is the semicolumn groove being provided with opening upwards on cuboid matrix top, this semicolumn groove
The median plane in the plane of symmetry and cuboid length thereof direction be same, be provided with in lower tube clip semicolumn groove
The Damping material layer corresponding with its radius of curvature, lower tube clip semicolumn groove be respectively provided on two sides with two vertical
Screw, the centrage of the two screw line concentricity with the screw on pipe clamp lower cover respectively, on lower tube clip
Being provided with matched upper pipe clamp, on this, pipe clamp is to be provided with, at cuboid matrix underpart, the semicolumn that Open Side Down
Groove, the plane of symmetry of this semicolumn groove is same with the median plane in cuboid length thereof direction, at upper pipe clamp
The Damping material layer corresponding with its radius of curvature it is provided with, in upper pipe clamp semicolumn groove both sides respectively in semicolumn groove
Being provided with two vertical through holes, the centrage of the two through hole is concentricity with the screw on pipe clamp lower cover respectively
Line, on upper pipe clamp, in-plane is provided with screw, and it is threadeded with plunger rod lower end, and this plunger rod is located at pipe
In the central through hole of folder upper cover plate, it is provided with pilot seal assembly between the two, above-mentioned plunger rod top side face sets
Having Assembled sliding annular seal, it contacts with pipe clamp upper cover plate central through hole, and this pipe clamp upper cover plate center leads to
Top, hole is provided with female thread, and it is connected with the external screw thread on air chamber inferior part of the cylinder block cylinder, this air chamber inferior part of the cylinder block
Cylinder in set the screw that two axis are parallel with air chamber cylinder body axis, in two screws, be respectively equipped with gas list
To valve and damping piece, this damping piece likeness in form screw, and with central through hole, air chamber cylinder body top is hollow housing,
Its upper end is provided with through hole, is provided with charge valve on through hole, and above-mentioned is located in the pipe clamp upper cover plate above pipe clamp
Heart through hole is respectively provided on two sides with two vertical through holes, the centrage of the two through hole logical with on upper pipe clamp respectively
Hole is concentricity line, is respectively equipped with two screw rods in the two through hole, they are from top to bottom each passed through pipe clamp upper cover
Plate and upper pipe clamp, threaded with lower tube clip and pipe clamp lower cover in lower end.
Air damping fluid pressure line weakening pipe clamp the most according to claim 1, it is characterised in that: at pipe
Folder upper cover plate is provided with the through hole connected with plunger rod and air chamber cylinder body institute clip space, and the outer end of this through hole is provided with leakage
Gas instruction device, this air leakage indicating device has an opening towards the circular groove shape pressure cap in hole, its periphery wall and pipe
Folder upper cover plate is threaded, and pressure cap center is provided with the through hole more than indicating arm external diameter, between this through hole and indicating arm
Being provided with dust ring, indicating arm is positioned at one end of device and is fixed on disc-shaped base, in the end edge of pressure cap opening
Upper ecto-entad is sequentially provided with back-up ring, spacer ring and the seal assembly that internal diameter is corresponding with indicating arm base external diameter,
It is provided with spring between pressure cap and indicating arm base.
Air damping fluid pressure line weakening pipe clamp the most according to claim 1, it is characterised in that: guide
Black box bottom is provided with under upper shed circular groove shape gland, this gland outer peripheral face and pipe clamp upper cover plate central through hole
Slotted eye outside opening is corresponding, and gland center is provided with the through hole more than plunger rod external diameter, this through hole and plunger rod it
Between be provided with dust ring, in gland, be provided with fairlead, its underpart is the disk corresponding with gland circular groove, its top
For the pipe being enclosed within plunger rod, and between fairlead and plunger rod, it is provided with sealing ring.
Air damping fluid pressure line weakening pipe clamp the most according to claim 1, it is characterised in that: inflation
Inflation valve bonnet it is provided with outside valve.
Air damping fluid pressure line weakening pipe clamp the most according to claim 1, it is characterised in that: pipe clamp
The upper shed of each screw of lower cover is provided with location boss, sets and manage outside the screw of lower tube clip lower plane
The groove that folder lower cover convex platform is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183904.7A CN104879569B (en) | 2015-04-17 | 2015-04-17 | A kind of air damping fluid pressure line weakening pipe clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183904.7A CN104879569B (en) | 2015-04-17 | 2015-04-17 | A kind of air damping fluid pressure line weakening pipe clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104879569A CN104879569A (en) | 2015-09-02 |
| CN104879569B true CN104879569B (en) | 2016-10-05 |
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ID=53947177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510183904.7A Expired - Fee Related CN104879569B (en) | 2015-04-17 | 2015-04-17 | A kind of air damping fluid pressure line weakening pipe clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104879569B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542317A (en) * | 2003-04-07 | 2004-11-03 | ��Ŧ�� | Antivibration clamp for elongated objects |
| CN202510843U (en) * | 2012-04-20 | 2012-10-31 | 谢娟 | Pipe clamp with damping device |
| CN202946783U (en) * | 2012-12-05 | 2013-05-22 | 上海中申管道工程设备有限公司 | Novel shock absorption pipe bracket |
| CN103758908A (en) * | 2014-01-13 | 2014-04-30 | 江苏现代电力科技股份有限公司 | Pneumatic damping device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970001606B1 (en) * | 1993-11-12 | 1997-02-11 | 한국기계연구원 | Lateral and axial vibration isolators utilizing leaf springs |
-
2015
- 2015-04-17 CN CN201510183904.7A patent/CN104879569B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542317A (en) * | 2003-04-07 | 2004-11-03 | ��Ŧ�� | Antivibration clamp for elongated objects |
| CN202510843U (en) * | 2012-04-20 | 2012-10-31 | 谢娟 | Pipe clamp with damping device |
| CN202946783U (en) * | 2012-12-05 | 2013-05-22 | 上海中申管道工程设备有限公司 | Novel shock absorption pipe bracket |
| CN103758908A (en) * | 2014-01-13 | 2014-04-30 | 江苏现代电力科技股份有限公司 | Pneumatic damping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104879569A (en) | 2015-09-02 |
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Inventor after: Quan Lingxiao Inventor after: Guo Changhong Inventor after: Liu Song Inventor after: Song Yu Inventor after: Kong Xiangdong Inventor before: Quan Lingxiao Inventor before: Guo Changhong Inventor before: Liu Gao Inventor before: Song Yu Inventor before: Kong Xiangdong |
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