CN114204505A - Damping device suitable for horizontally-arranged GILs and damping implementation method thereof - Google Patents
Damping device suitable for horizontally-arranged GILs and damping implementation method thereof Download PDFInfo
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- CN114204505A CN114204505A CN202111371586.9A CN202111371586A CN114204505A CN 114204505 A CN114204505 A CN 114204505A CN 202111371586 A CN202111371586 A CN 202111371586A CN 114204505 A CN114204505 A CN 114204505A
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- 238000013016 damping Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000035939 shock Effects 0.000 claims abstract description 98
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920005549 butyl rubber Polymers 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- Vibration Dampers (AREA)
Abstract
The invention discloses a damping device suitable for a horizontally arranged GIL and a damping implementation method thereof, wherein the damping device comprises: contain base (1), shock pad (2) and shock bolt (3) that have inside sunken arc top surface, be equipped with base fixing ear (14) on base (1), shock bolt (3) pass through shock bolt hole (15) on base fixing ear (14) insert the fixture with will base (1) is fixed, set up on the inside sunken arc top surface of base (1) shock pad (2) to place the GIL shell in on shock pad (2).
Description
Technical Field
The invention relates to the technical field of power Transmission and transformation insulating equipment, in particular to a damping device suitable for a horizontally arranged GIL (Gas Insulated Transmission Lines) and a damping implementation method thereof.
Background
Gas Insulated Transmission Lines (GIL) have the advantages of high reliability, small capacitance, low loss, strong overload capability, electromagnetic environment friendliness and the like, and the Gas Insulated Transmission Lines (GIL) are generally sealed by adopting a metal shell to compress SF6And gas insulation, wherein different types of insulators are used for supporting the conductor in the shell or separating the gas chamber to form the high-voltage and high-current power transmission equipment with the shell and the conductor arranged coaxially. GIL in hydropower stations, nuclear power stations,The application of the fields of urban comprehensive pipe galleries and the like is more and more extensive.
However, in the GIL operation process, vibration is generated due to the change of internal alternating current, and the GIL vibration magnitude is sharply increased under special working conditions (such as short-circuit current, external environment change and the like), so that the phenomena of GIL conductor settlement, secondary equipment failure and the like can be caused, and the safe operation of the GIL is seriously influenced.
At present, no better shockproof measures exist in the GIL in engineering, related design methods and devices are also lacked from the design angle of the GIL, and the better protection on the shock of the GIL is difficult to carry out, so that the safe operation of the GIL is threatened.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a damping device suitable for a horizontally arranged GIL and a damping implementation method thereof, so that the effective protection of the vibration of the GIL is realized, and the safe operation of the GIL is ensured.
To achieve the above object, the present invention provides a shock-absorbing device adapted for a horizontally arranged GIL, comprising: contain base (1), shock pad (2) and shock bolt (3) that have inside sunken arc top surface, be equipped with fixed ear of base (14) on base (1), shock bolt (3) are passed through shock bolt hole (15) on the fixed ear of base (14) and insert the fixture in order to incite somebody to action base (1) is fixed, set up on the inside sunken arc top surface of base (1) shock pad (2) to place the GIL shell in on shock pad (2).
Preferably, the base (1) comprises a base body with a horizontal bottom surface, the top surface of the base body is an inward-concave arc-shaped top surface (11) in which a plurality of lightening holes (12) are arranged, base fixing lugs (14) are respectively arranged on two sides of the base (1), and the damping bolt hole (15) is located in the center of the base fixing lug (14) and used for installing the damping bolt (3).
Preferably, the lightening holes (12) are in a cylindrical structure, the center of the cylindrical axis of the lightening holes is positioned at the lower part of the base (1) and is not close to the edge, and the diameter of the section of the cylindrical structure is not more than one third of the length of the horizontal bottom surface.
Preferably, the length of the horizontal bottom surface of the base (1) is 1.2-2 times of the diameter of the GIL shell.
Preferably, the base fixing lugs (14) are positioned on two sides of the base (1) close to the bottom.
Preferably, the base fixing lug (14) is a flat cuboid, the length of the base fixing lug is 500-1500 mm, the width of the base fixing lug is 50-100 mm, and the thickness of the base fixing lug is 10-50 mm.
Preferably, the shock pad (2) comprises a shock pad base body (21) and a plurality of hollowed-out parts (22), the length of the shock pad base body (21) is not less than 1000mm, the width of the shock pad base body is not less than one third of the arc length of the GIL shell, and the hollowed-out parts (22) of the shock pad are located in the middle of the shock pad base body (21).
Preferably, the cross section of each hollow-out part (22) is rectangular, the long side of the hollow-out part is about two thirds of the width of the shock pad base body (21), and the short side of the hollow-out part is 5-10 mm.
Preferably, the damping bolt (3) comprises an earthing bolt (31) and a damping spring (32), the diameter of the earthing bolt (31) is inserted into the damping bolt hole (15) until a fixture is connected, the damping spring (32) is sleeved in the earthing bolt (31) and located between the base fixing lug (14) and the soil surface, the diameter of the earthing bolt (31) is not larger than that of the damping bolt hole (15), and the inner diameter of the damping spring (32) is larger than that of the earthing bolt (31).
In order to achieve the above object, the present invention further provides a method for achieving shock absorption of a shock absorbing device for a horizontally arranged GIL, comprising the steps of:
step S1, horizontally placing the base (1) to ensure that the bottom of the base (1) is in good contact with the surface of a fixed object;
step S2, placing the damping bolt (3) into the damping bolt hole (15) to ensure that the damping bolt (3) is in surface contact with the base fixing lug (14) and is inserted into a fixture;
step S3, fixing the shock pad (2) on the arc-shaped top surface of the base (1);
step S4, placing the GIL housing on the cushion (2).
Compared with the prior art, the damping device suitable for the horizontally arranged GIL and the damping realization method thereof have the advantages that the base fixing lug (14) is arranged on the base (1), the damping bolt (3) is inserted into a fixed object through the damping bolt hole (15) on the base fixing lug (14) to fix the base (1), and the damping pad (2) is arranged on the inward-sunken arc-shaped top surface of the base (1), so that the damping device with simple structure and convenience in installation is realized.
Drawings
FIG. 1 is a schematic structural view of a shock absorbing device suitable for use in a horizontally disposed GIL of the present invention;
FIG. 2(a) is a front view of the base (1) in an embodiment of the present invention;
FIG. 2(b) is a top view of the base (1) in an embodiment of the present invention;
FIG. 3(a) is a front view of a cushion (2) according to an embodiment of the present invention;
FIG. 3(b) is a top view of the shock pad (2) in an embodiment of the present invention;
FIG. 4 is a schematic view of a damper bolt (3) according to an embodiment of the present invention;
FIG. 5 is a flow chart of the steps of a method for achieving shock absorption of a horizontally arranged GIL shock absorber according to the present invention;
fig. 6 is a schematic view of the damping device according to the embodiment of the present invention in use in the field.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
Fig. 1 is a schematic structural view of a shock-absorbing device for a horizontally arranged GIL according to the present invention. As shown in fig. 1, a shock-absorbing device for a horizontally arranged GIL according to the present invention comprises: the shock-absorbing structure comprises a base (1) with an arc-shaped top surface, a shock-absorbing pad (2) and a shock-absorbing bolt (3).
The base (1) is respectively provided with base fixing lugs (14) at two sides, a shock absorbing bolt hole (15) is arranged on the base fixing lugs, the shock absorbing bolt hole (15) is preferably positioned in the center of the base fixing lug (14) and used for installing a shock absorbing bolt (3), and the shock absorbing bolt (3) is inserted into the shock absorbing bolt hole (15) and is inserted into a fixture, such as soil, so as to fix the base (1); set up on the arc top surface of base (1) shock pad (2) for place the GIL shell, arc top surface radius generally than GIL shell radius (GIL shell radius is decided according to GIL voltage class, and GIL voltage class is higher the more 5 ~ 35mm of shell radius) to can be compatible the shock pad of different thickness.
Fig. 2(a) is a front view of the base (1) in the embodiment of the present invention, and fig. 2(b) is a plan view of the base (1) in the embodiment of the present invention. In the embodiment of the invention, the base (1) comprises a base body with a horizontal bottom surface, the top surface of the base body is an arc-shaped top surface (11) in which a plurality of lightening holes (12) are arranged, in the embodiment of the invention, the lightening holes (12) are in a cylindrical structure, the axial center of the cylindrical structure is positioned at the lower part of the base (1) and is not close to the edge, the section diameter of the cylindrical structure is generally not more than one third of the length of the horizontal bottom surface, the length of the horizontal bottom surface is determined according to the GIL voltage grade and is generally 1.2-2 times of the diameter of a GIL shell, base fixing lugs (14) are respectively arranged at two sides of the base (1), the base fixing lugs (14) are positioned at two sides of the base (1) and are close to the bottom, the shape of the base fixing lugs are flat cuboids, preferably, the length of the base fixing lugs (14) is 500-1500 mm, the width is 50-100 mm, and the thickness is 10-50 mm, the shock-absorbing bolt hole (15) are located the center of the base fixing lug (14) for installing the shock-absorbing bolt (3), and the aperture of the shock-absorbing bolt hole is generally 10-20 mm.
In the embodiment of the present invention, the material of the base is cast steel, but the present invention is not limited thereto.
Fig. 3(a) is a front view of the shock-absorbing pad (2) in the embodiment of the present invention, and fig. 3(b) is a top view of the shock-absorbing pad (2) in the embodiment of the present invention, the shock-absorbing pad (2) is a rectangular parallelepiped butyl rubber pad with a thin thickness, the shock-absorbing pad (2) is adhered to the arc-shaped top surface (11) of the base (1) by strong glue (so the shock-absorbing pad front view presents an arc-shaped structure), and the GIL housing is placed on the shock-absorbing pad (2); the shock pad (2) comprises a shock pad base body (21) and a hollowed-out part (22), wherein the length of the shock pad base body (21) is not less than 1000mm, and the width of the shock pad base body is not less than one third of the arc length of the GIL shell; the hollow-out parts (22) of the shock absorption pad have the effects of increasing the air contact area and improving the shock absorption effect, the hollow-out parts (22) of the shock absorption pad are preferably arranged in the middle of the shock absorption pad base body (21), each shock absorption pad (2) is preferably not less than 5 hollow-out parts (22), the cross section of each hollow-out part (22) is rectangular in the specific embodiment of the invention, the long side is about two thirds of the width of the shock absorption pad base body (21), and the short side is 5-10 mm.
Fig. 4 is a schematic view of a damper bolt (3) according to an embodiment of the present invention. The damping bolt comprises an earthing bolt (31) and a damping spring (32), in the practical use process, the diameter of the earthing bolt (31) is inserted into the damping bolt hole (15) until the earthing bolt is connected to the ground, and the damping spring (32) is sleeved in the earthing bolt (31) and positioned between the base fixing lug (14) and the soil surface; the diameter of the grounding bolt (31) is not more than that of the shock absorption bolt hole (15), the inner diameter of the shock absorption spring (32) is more than that of the grounding bolt (31), in the specific embodiment of the invention, the length of the grounding bolt (31) is not less than 500mm, and the length of the shock absorption spring (32) is not more than 500 mm; the grounding bolt (31) is made of 2205 stainless steel and has the characteristics of corrosion resistance, high conductivity and the like; the material of the damping spring (32) adopts 304 stainless steel.
Fig. 5 is a flow chart of steps of a method for achieving shock absorption of a shock absorption device for a horizontally arranged GIL according to the present invention. As shown in fig. 5, the method for realizing the shock absorption of the shock absorption device for the horizontally arranged GIL of the present invention comprises the following steps:
and step S1, horizontally placing the base (1) to ensure that the bottom of the base (1) is in good contact with the soil surface.
Specifically, the base (1) is placed horizontally so that its horizontal bottom surface is in good contact with the soil surface.
And step S2, placing the damping bolt (3) into the damping bolt hole (15) to ensure that the damping bolt (3) is in surface contact with the base fixing lug (14) and is inserted into the soil.
Specifically, insert the earth bolt diameter of shock attenuation bolt (3) shock attenuation bolt hole (15), until inserting soil underground, with damping spring cover in earth bolt, be located between fixed ear of base (14) and the soil surface, guarantee shock attenuation bolt (3) and fixed ear of base (14) surface contact, and insert inside the soil.
And step S3, fixing the shock pad (2) on the arc-shaped top surface of the base (1).
In the specific embodiment of the invention, the damping pad is a thin cuboid butyl rubber pad, and the damping pad is adhered to the arc-shaped top surface of the base through strong glue.
Step S4, placing the GIL housing on the cushion (2).
The schematic diagram for field use of the horizontally arranged GIL damping device after completion of the above steps is shown in fig. 6, wherein the GIL housing (4) is placed onto said damping pad (2).
Examples
In the embodiment, the schematic diagram of the damping device suitable for the horizontally arranged GIL is composed of a base (1), a damping pad (2) and a damping bolt (3), wherein the base (1) mainly comprises an arc-shaped top surface (11), a lightening hole (12), a horizontal bottom surface (13), a base fixing lug (14) and a damping bolt hole (15).
The shock pad (2) is placed on the arc-shaped top surface, the radius of the arc-shaped top surface is generally 5-35 mm larger than the radius of a GIL shell (the radius of the GIL shell is determined according to the GIL voltage grade, and the radius of the shell is larger when the GIL voltage grade is higher), and the shock pad can be compatible with the shock pads (2) with different thicknesses; the lightening hole (12) is in a cylinder structure, the center of the cylinder shaft is positioned at the lower part of the base and is not close to the edge, and the diameter of the section of the cylinder is generally not more than one third of the length of the horizontal bottom surface; the length of the horizontal bottom surface is determined according to the voltage grade of the GIL and is generally 1.2-2 times of the diameter of the GIL shell; the base is fixed ear (14) and is located the position that base (1) both sides are close to the bottom, and the shape is flat cuboid, and general 500 ~ 1500mm of length, general 50 ~ 100mm of width, the general 10 ~ 50mm of thickness, shock-absorbing bolt hole (15) are located the center of base fixed ear (14), and general 10 ~ 20mm in aperture is used for installing shock-absorbing bolt (3).
The base (1) is made of cast steel.
The shock pad (2) is a cuboid butyl rubber pad with thin thickness, the shock pad (2) is adhered to the arc-shaped top surface of the base through strong glue, and the GIL shell is placed on the shock pad; the shock pad comprises a shock pad base body (21) and a hollowed-out part (22), wherein the length of the shock pad base body (21) is generally not less than 1000mm, and the width of the shock pad base body is not less than one third of the arc length of the GIL shell; increase air area of contact and improve the shock attenuation effect during the effect of shock pad fretwork department (22), fretwork department (22) are located the middle part of shock pad base member (21), and 5 fretwork departments (22) are no less than to every shock pad, and fretwork department (22) cross-section is the rectangle, and two-thirds, the minor face that the long limit was about shock pad base member (21) width are 5 ~ 10 mm.
Shock pad (2) are pasted on the arc top surface of base (1) through powerful sticky, and the GIL shell is placed on shock pad (2).
The damping bolt comprises an earthing bolt (31) and a damping spring (32), in the practical use process, the diameter of the earthing bolt (31) is inserted into the damping bolt hole (15) until the earthing bolt is connected to the ground, and the damping spring (32) is sleeved in the earthing bolt (31) and positioned between the base fixing lug (14) and the soil surface; the diameter of the grounding bolt (31) is not more than that of the damping bolt hole (15), the inner diameter of the damping spring (32) is more than that of the grounding bolt (31), the length of the grounding bolt (31) is generally not less than 500mm, and the length of the damping spring (32) is not more than 500 mm; the grounding bolt (31) is made of 2205 stainless steel and has the characteristics of corrosion resistance, high conductivity and the like; the material of the damper spring (32) is 304 stainless steel.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (10)
1. A shock absorbing device adapted for use in a horizontally disposed GIL comprising: contain base (1), shock pad (2) and shock bolt (3) that have inside sunken arc top surface, be equipped with base fixing ear (14) on base (1), shock bolt (3) pass through shock bolt hole (15) on base fixing ear (14) insert the fixture with will base (1) is fixed, set up on the inside sunken arc top surface of base (1) shock pad (2) to place the GIL shell in on shock pad (2).
2. A shock absorbing device adapted for use in a horizontally disposed GIL as claimed in claim 1 wherein: the base (1) comprises a base body with a horizontal bottom surface, the top surface of the base body is an inward-concave arc-shaped top surface (11) which is internally provided with a plurality of lightening holes (12), base fixing lugs (14) are respectively arranged on two sides of the base (1), and the shock absorbing bolt hole (15) is located in the center of each base fixing lug (14) and used for installing the shock absorbing bolt (3).
3. A shock absorbing device adapted for use in a horizontally disposed GIL as claimed in claim 2, wherein: the lightening hole (12) is in a cylinder structure, the axial center of the cylinder is positioned at the lower part of the base (1) and is not close to the edge, and the diameter of the section of the cylinder is not more than one third of the length of the horizontal bottom surface.
4. A shock absorbing device adapted for use in a horizontally disposed GIL as claimed in claim 2, wherein: the length of the horizontal bottom surface of the base (1) is 1.2-2 times of the diameter of the GIL shell.
5. A shock absorbing device adapted for use in a horizontally disposed GIL as claimed in claim 2, wherein: the base fixing lugs (14) are positioned at the positions of two sides of the base (1) close to the bottom.
6. A shock absorbing device adapted for use in a horizontally disposed GIL as claimed in claim 5, wherein: the shape of the base fixing lug (14) is a flat cuboid, the length of the base fixing lug is 500-1500 mm, the width of the base fixing lug is 50-100 mm, and the thickness of the base fixing lug is 10-50 mm.
7. A shock absorbing device adapted for use in a horizontally disposed GIL as claimed in claim 1 wherein: shock pad (2) contain shock pad base member (21) and a plurality of fretwork department (22), shock pad base member (21) length is not less than 1000mm, the width is not less than the third of GIL shell arc length, shock pad fretwork department (22) are located the middle part of shock pad base member (21).
8. A shock absorbing device adapted for use in a horizontally disposed GIL as claimed in claim 7, wherein: the cross section of each hollow-out part (22) is rectangular, the long side of the hollow-out part is about two thirds of the width of the shock pad base body (21), and the short side of the hollow-out part is 5-10 mm.
9. A shock absorbing device adapted for use in a horizontally disposed GIL as claimed in claim 1 wherein: the damping bolt (3) comprises an earthing bolt (31) and a damping spring (32), the diameter of the earthing bolt (31) is inserted into the damping bolt hole (15) until a fixture is connected, the damping spring (32) is sleeved in the earthing bolt (31) and located between the base fixing lug (14) and the soil surface, the diameter of the earthing bolt (31) is not larger than that of the damping bolt hole (15), and the inner diameter of the damping spring (32) is larger than that of the earthing bolt (31).
10. A shock absorption implementation method of a shock absorption device suitable for a horizontally-arranged GIL comprises the following steps:
step S1, horizontally placing the base (1) to ensure that the bottom of the base (1) is in good contact with the surface of a fixed object;
step S2, placing the damping bolt (3) into the damping bolt hole (15) to ensure that the damping bolt (3) is in surface contact with the base fixing lug (14) and is inserted into a fixture;
step S3, fixing the shock pad (2) on the arc-shaped top surface of the base (1);
step S4, placing the GIL housing on the cushion (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371586.9A CN114204505A (en) | 2021-11-18 | 2021-11-18 | Damping device suitable for horizontally-arranged GILs and damping implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371586.9A CN114204505A (en) | 2021-11-18 | 2021-11-18 | Damping device suitable for horizontally-arranged GILs and damping implementation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114204505A true CN114204505A (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111371586.9A Pending CN114204505A (en) | 2021-11-18 | 2021-11-18 | Damping device suitable for horizontally-arranged GILs and damping implementation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN114204505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548999A (en) * | 2022-11-29 | 2022-12-30 | 江苏安靠智能输电工程科技股份有限公司 | Vibration reduction support for rigid gas insulation power transmission line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615599A (en) * | 2012-10-09 | 2014-03-05 | 厦门嘉达环保建造工程有限公司 | Equipment floor pipe vibration isolation structure |
| CN204878518U (en) * | 2015-07-09 | 2015-12-16 | 李锐 | Round bottom elevator car whereabouts damping mechanism |
| CN206274061U (en) * | 2016-12-05 | 2017-06-23 | 中国石油大学(华东) | Vibration absorber based on compressor outlet surge tank |
| CN209635246U (en) * | 2018-12-19 | 2019-11-15 | 中国船舶重工集团公司七五0试验场 | A kind of product transhipment track kickstand with vibration-damping function |
| CN211103812U (en) * | 2019-10-17 | 2020-07-28 | 苏州伟泰克工具制造有限公司 | Electric tool with vibration damper |
-
2021
- 2021-11-18 CN CN202111371586.9A patent/CN114204505A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615599A (en) * | 2012-10-09 | 2014-03-05 | 厦门嘉达环保建造工程有限公司 | Equipment floor pipe vibration isolation structure |
| CN204878518U (en) * | 2015-07-09 | 2015-12-16 | 李锐 | Round bottom elevator car whereabouts damping mechanism |
| CN206274061U (en) * | 2016-12-05 | 2017-06-23 | 中国石油大学(华东) | Vibration absorber based on compressor outlet surge tank |
| CN209635246U (en) * | 2018-12-19 | 2019-11-15 | 中国船舶重工集团公司七五0试验场 | A kind of product transhipment track kickstand with vibration-damping function |
| CN211103812U (en) * | 2019-10-17 | 2020-07-28 | 苏州伟泰克工具制造有限公司 | Electric tool with vibration damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548999A (en) * | 2022-11-29 | 2022-12-30 | 江苏安靠智能输电工程科技股份有限公司 | Vibration reduction support for rigid gas insulation power transmission line |
| CN115548999B (en) * | 2022-11-29 | 2023-03-10 | 江苏安靠智能输电工程科技股份有限公司 | Vibration reduction support for rigid gas insulation power transmission line |
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