CN111049009A - Power distribution cabinet of power system - Google Patents
Power distribution cabinet of power system Download PDFInfo
- Publication number
- CN111049009A CN111049009A CN201911234017.2A CN201911234017A CN111049009A CN 111049009 A CN111049009 A CN 111049009A CN 201911234017 A CN201911234017 A CN 201911234017A CN 111049009 A CN111049009 A CN 111049009A
- Authority
- CN
- China
- Prior art keywords
- damping
- groove
- plate
- cabinet body
- power distribution
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- 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
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- 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
- F16F15/04—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 elastic means
- F16F15/06—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 elastic means with metal springs
- F16F15/067—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 elastic means with metal springs using only wound springs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
Abstract
The invention discloses a power distribution cabinet of a power system, which comprises a protection plate, wherein a groove is formed in the upper side of the protection plate, rectangular grooves are formed in two opposite inner sides of the groove, the rectangular grooves are located at the bottommost position of the groove, a lifting plate capable of moving up and down is arranged in each rectangular groove, a mounting groove is formed in the upper side of the lifting plate, a shock pad is embedded in each mounting groove, a cabinet body is fixedly connected to the upper surface of each shock pad, guide mechanisms for the lifting plate to move up and down are symmetrically arranged in each rectangular groove, and two shock absorption supports are symmetrically arranged at the inner bottom of each groove. The cabinet body vibration damping device is reasonable in structural design, the effect of vibration damping and buffering is achieved by the aid of acting force of the vibration damping springs, the effect of upper and lower vibration damping and buffering is further improved through the vibration damping mechanism, safety of the power distribution cabinet is guaranteed, the vibration amplitude of the cabinet body can be effectively controlled through the damping mechanism, and stability of the cabinet body is guaranteed.
Description
Technical Field
The invention relates to the technical field of power distribution cabinet equipment, in particular to a power distribution cabinet of a power system.
Background
The distribution cabinet (case) is a final-stage device of a distribution system and is divided into a power distribution cabinet (case), a lighting distribution cabinet (case) and a metering cabinet (case). The power distribution cabinet is a general name of a motor control center. The power distribution cabinet is used in the occasions with dispersed loads and less loops; the motor control center is used for occasions with concentrated loads and more loops.
The existing power distribution cabinet does not have shock resistance and buffering capacity, the power distribution cabinet can often receive violent vibration in the transportation process, so that the phenomenon that electric components inside the power distribution cabinet are easy to loosen can be easily caused, the service life of the power distribution cabinet can be shortened, meanwhile, impact force transmitted by the power distribution cabinet on the road surface in the transportation process is extremely easy to damage the power distribution cabinet, and the integrity of the power distribution cabinet can not be well guaranteed.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a power distribution cabinet of an electric power system, which utilizes the acting force of a damping spring to play a damping and buffering effect, further improves the upper and lower damping and buffering effects through a damping mechanism to ensure the safety of the power distribution cabinet, can effectively control the shaking amplitude of a cabinet body through the damping mechanism, and ensures the stability of the cabinet body.
In order to achieve the purpose, the invention adopts the following technical scheme:
a power distribution cabinet of an electric power system comprises a protection plate, wherein a groove is formed in the upper side of the protection plate, rectangular grooves are formed in two opposite inner sides of the groove, the rectangular grooves are located at the bottommost position of the groove, a lifting plate capable of moving up and down is arranged in the rectangular grooves, a mounting groove is formed in the upper side of the lifting plate, a shock pad is embedded in the mounting groove, a cabinet body is fixedly connected to the upper surface of the shock pad, guide mechanisms used for the lifting plate to move up and down are symmetrically arranged in the rectangular grooves, two shock absorption supports are symmetrically arranged at the bottom of the groove and are fixedly connected with the protection plate, a shock absorption spring is sleeved on the upper side of each shock absorption support, two spring sleeves are symmetrically arranged on the lower side of the lifting plate and are fixedly connected with the lifting plate, and the spring sleeves are located at positions right above the, damping spring's both ends difference fixed connection is in damping support's upside and spring sleeve's inside, the symmetry is provided with two damper between the interior bottom of lifter plate and recess, the four sides inboard of recess all is provided with the shock attenuation groove, the inside of shock attenuation groove is provided with the buffer gear who is used for cabinet body buffering all around.
Preferably, the open end of the cabinet body is symmetrically provided with two rotatable cabinet doors, and the cabinet doors are hinged with the cabinet body through two hinge parts.
Preferably, the guide mechanism comprises a guide rod vertically arranged inside the rectangular groove, the guide rod and the guide rod are fixedly connected, a through hole matched with the guide rod is formed in the lifting plate, the guide rod is located inside the through hole, and a buffer layer is fixedly connected to the inner top of the rectangular groove.
Preferably, damper includes the shock attenuation post of fixed connection bottom in the recess, the inside of shock attenuation post is provided with the inner chamber, the downside fixedly connected with slide bar of lifter plate, the lower extreme of slide bar runs through upside and the fixedly connected with piston that is provided with the shock attenuation post, sliding connection between slide bar and the shock attenuation post, the circumference is equidistant to be provided with a plurality of circulation holes on the piston, the outside of piston and the inner chamber of shock attenuation post between offset connection, the inside packing of shock attenuation post has the shock attenuation liquid.
Preferably, the damping fluid is hydraulic oil, two ends of the circulation hole are both conical mechanisms, and the inner diameter of the circulation hole gradually increases from inside to outside.
Preferably, buffer gear is including setting up the elastic metal plate in the shock attenuation inslot portion, the lateral wall fixedly connected with buffer board of the cabinet body, the middle part outside and the buffer board of elastic metal plate offset the setting, the inside of elastic metal plate is provided with compression spring, compression spring's both ends difference fixed connection is in the inboard of elastic metal plate and shock attenuation inslot.
The invention has the following beneficial effects:
1. the damping mechanism can move up and down by using the piston, so that damping fluid passes through the through hole, and the friction between the hole wall and the damping fluid and the internal friction between oil molecules form damping force on vibration, so that the damping effect can be further improved;
2. through the arrangement of the damping spring, the damping support and the spring sleeve, the vibration of the lifting plate is reduced and buffered by the action of the spring force of the damping spring, so that the damage to the cabinet body can be effectively reduced;
3. through the setting of elastic metal plate and compression spring, the elastic property of usable elastic metal plate and compression spring's elastic force, the range that the effectual control cabinet body rocked reduces and rocks the influence that causes the cabinet body, stability when having improved the cabinet body transportation, and the buffer board possesses the effect of buffering equally.
Drawings
Fig. 1 is a schematic structural diagram of a power distribution cabinet of an electric power system according to the present invention;
fig. 2 is a schematic top view of a power distribution cabinet of an electrical power system according to the present invention;
fig. 3 is a schematic top view of a piston of a power distribution cabinet of a power system according to the present invention.
In the figure: the cabinet comprises a cabinet body 1, a protection plate 2, a compression spring 3, an elastic metal plate 4, a buffer layer 5, a guide rod 6, a damping support 7, a damping spring 8, a damping column 9, a sliding rod 10, damping liquid 11, a spring sleeve 12, a rectangular groove 13, a through hole 14, a buffer plate 15, a damping groove 16, a hinge part 17, a damping pad 18, a mounting groove 19, a lifting plate 20, a groove 21, a circulation hole 22, a piston 23 and a cabinet door 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a power distribution cabinet of an electric power system comprises a protection plate 2, a groove 21 is arranged on the upper side of the protection plate 2, rectangular grooves 13 are arranged on two opposite inner sides of the groove 21, the rectangular grooves 13 are located at the bottommost position of the groove 21, a lifting plate 20 capable of moving up and down is arranged inside the rectangular grooves 13, an installation groove 19 is arranged on the upper side of the lifting plate 20, a shock pad 18 is embedded inside the installation groove 19 and has a shock absorption effect, a cabinet body 1 is fixedly connected to the upper surface of the shock pad 18, guide mechanisms for the lifting plate 20 to move up and down are symmetrically arranged inside the rectangular grooves 13, two shock absorption supports 7 are symmetrically arranged on the inner bottom of the groove 21, the shock absorption supports 7 are fixedly connected with the protection plate 2, a shock absorption spring 8 is sleeved on the upper side of the shock absorption support 7, two spring sleeves 12 are symmetrically arranged, spring sleeve 12 is located damping support 7 and is put directly over, and damping spring 8's both ends difference fixed connection is in damping support 7's upside and spring sleeve 12's inside, and the symmetry is provided with two damper between the interior bottom of lifter plate 20 and recess 21, and recess 21's four sides inboard all is provided with damping tank 16, and damping tank 16's inside is provided with the buffer gear who is used for cabinet body 1 buffering all around.
The open end symmetry of the cabinet body 1 is provided with two rotatable cabinet doors 24, and the cabinet door 24 is through two articulated elements 17 and cabinet body 1 between articulated the setting, and cabinet body 1 adopts the mode setting of two divisions of doors.
Guiding mechanism includes vertical setting at the inside guide bar 6 of rectangular channel 13, and both fixed connection, is provided with the perforating hole 14 with 6 looks adaptations of guide bar on the lifter plate 20, and guide bar 6 is located the inside of perforating hole 14, and the stability that lifter plate 20 reciprocated is guaranteed to the interior top fixedly connected with buffer layer 5 of rectangular channel 13 to in better the shock attenuation of carrying on.
Damper includes the shock attenuation post 9 of fixed connection bottom in recess 21, the inside of shock attenuation post 9 is provided with the inner chamber, the downside fixedly connected with slide bar 10 of lifter plate 20, the lower extreme of slide bar 10 runs through the upside and the fixedly connected with piston 23 that are provided with shock attenuation post 9, sliding connection between slide bar 10 and the shock attenuation post 9, the equidistant a plurality of opening 22 that are provided with of circumference on the piston 23, it is connected to offset between the outside of piston 23 and the inner chamber of shock attenuation post 9, the inside packing of shock attenuation post 9 has damping fluid 11, damping fluid 11 adopts hydraulic oil, the both ends of opening 22 all are the toper mechanism, opening 22 from inside to outside internal diameter grow gradually, make things convenient for flowing through of damping fluid 11, make the friction of pore wall and damping fluid 11 and the internal friction between the fluid molecule form damping force to vibrations, the effect of improvement shock attenuation that can step forward.
Buffer gear is including setting up at the inside elastic metal plate 4 of shock attenuation groove 16, the lateral wall fixedly connected with buffer board 15 of the cabinet body 1, the middle part outside and the buffer board 15 of elastic metal plate 4 offset the setting, the inside of elastic metal plate 4 is provided with compression spring 3, fixed connection is in the inboard of elastic metal plate 4 and shock attenuation groove 16 respectively at compression spring 3's both ends, the elastic property of usable elastic metal plate 4 and compression spring 3's elastic force, the range that effectual control cabinet body 1 rocked, reduce and rock the influence that causes the cabinet body 1, stability when having improved the cabinet body 1 transportation, buffer board 15 adopts the rubber material also to have the effect of buffering equally.
In the in-process of the transportation of the cabinet body 1, when guard plate 2 produced the vibration, vibrations from top to bottom make lifter plate 20 can take place the condition about reciprocating, utilize the effect of spring force of damping spring 8 to reduce lifter plate 20's vibrations and cushion this moment, can effectually reduce the damage that causes cabinet body 1, at the absorbing in-process of damping spring 8, slide bar 10 pushes down, it makes damping fluid 11 flow to the last side wall of piston 23 in the shock attenuation post 9 through circulation hole 22 internal to promote piston 23 to push down, reciprocating of piston 23, damping fluid in the shock attenuation post 9 just flows into another intracavity through circulation hole 22 from a chamber repeatedly. At the moment, the friction between the hole wall and the damping fluid 11 and the internal friction among oil molecules form damping force on vibration, so that the impact from the road surface is effectively buffered, the vibration generated when the damping spring 8 rebounds after absorbing the vibration is inhibited, and the damping effect is further improved;
when the condition of rocking appears all around of the cabinet body 1, at this moment the elastic property of usable elastic metal plate 4 and compression spring 3's elastic force, the range that effectual control cabinet body 1 rocked reduces and rocks the influence that causes the cabinet body 1, stability when having improved the cabinet body 1 transportation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. The utility model provides a power distribution cabinet of electric power system, includes guard plate (2), its characterized in that, the upside of guard plate (2) is provided with recess (21), two inboards that recess (21) is relative all are provided with rectangular channel (13), rectangular channel (13) are located the bottommost position of recess (21), the inside of rectangular channel (13) is provided with lifter plate (20) that can reciprocate, the upside of lifter plate (20) is provided with mounting groove (19), the inside of mounting groove (19) is inlayed and is equipped with shock pad (18), the last fixed surface of shock pad (18) is connected with the cabinet body (1), the inside symmetry of rectangular channel (13) is provided with the guiding mechanism that is used for lifter plate (20) to reciprocate, the interior bottom symmetry of recess (21) is provided with two shock mount pads (7), shock mount pad (7) and guard plate (2) fixed connection, the upside cover of shock absorber support (7) is equipped with damping spring (8), the downside symmetry of lifter plate (20) is provided with two spring sleeve (12), spring sleeve (12) and lifter plate (20) fixed connection, spring sleeve (12) are located shock absorber support (7) position directly over, the both ends difference fixed connection of damping spring (8) is in the upside of shock absorber support (7) and the inside of spring sleeve (12), the symmetry is provided with two damper between the interior bottom of lifter plate (20) and recess (21), the four sides inboard of recess (21) all is provided with damping groove (16), the inside of damping groove (16) is provided with the buffer gear who is used for the cabinet body (1) buffering all around.
2. The power distribution cabinet of the power system according to claim 1, wherein two rotatable cabinet doors (24) are symmetrically arranged at the open end of the cabinet body (1), and the cabinet doors (24) are hinged to the cabinet body (1) through two hinges (17).
3. The power distribution cabinet of the power system according to claim 1, wherein the guide mechanism comprises a guide rod (6) vertically arranged inside a rectangular groove (13), the guide rod and the guide rod are fixedly connected, a through hole (14) matched with the guide rod (6) is arranged on the lifting plate (20), the guide rod (6) is located inside the through hole (14), and a buffer layer (5) is fixedly connected to the inner top of the rectangular groove (13).
4. The power distribution cabinet of the power system according to claim 1, wherein the damping mechanism comprises a damping column (9) fixedly connected to the bottom of the groove (21), an inner cavity is formed inside the damping column (9), a sliding rod (10) is fixedly connected to the lower side of the lifting plate (20), a piston (23) is fixedly connected to the lower end of the sliding rod (10) and penetrates through the upper side of the damping column (9), the sliding rod (10) and the damping column (9) are connected in a sliding manner, a plurality of circulation holes (22) are formed in the piston (23) at equal intervals in the circumferential direction, the outer side of the piston (23) is connected with the inner cavity of the damping column (9) in an abutting manner, and damping fluid (11) is filled inside the damping column (9).
5. The power distribution cabinet of the power system according to claim 4, wherein the damping fluid (11) is hydraulic oil, both ends of the circulation hole (22) are tapered, and the inner diameter of the circulation hole (22) is gradually increased from inside to outside.
6. The power distribution cabinet of the power system according to claim 1, wherein the buffering mechanism comprises an elastic metal plate (4) arranged inside a damping groove (16), a buffering plate (15) is fixedly connected to a side wall of the cabinet body (1), the middle outer side of the elastic metal plate (4) is abutted to the buffering plate (15), a compression spring (3) is arranged inside the elastic metal plate (4), and two ends of the compression spring (3) are respectively and fixedly connected to the inner sides of the elastic metal plate (4) and the damping groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911234017.2A CN111049009A (en) | 2019-12-05 | 2019-12-05 | Power distribution cabinet of power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911234017.2A CN111049009A (en) | 2019-12-05 | 2019-12-05 | Power distribution cabinet of power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111049009A true CN111049009A (en) | 2020-04-21 |
Family
ID=70234719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911234017.2A Pending CN111049009A (en) | 2019-12-05 | 2019-12-05 | Power distribution cabinet of power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111049009A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111653948A (en) * | 2020-05-12 | 2020-09-11 | 泉州七星电气有限公司 | Electric power electrical cabinet with external force buffering structure |
| CN112038913A (en) * | 2020-09-02 | 2020-12-04 | 江苏高泰电气有限公司 | Light shock attenuation switch board |
| CN112173111A (en) * | 2020-11-05 | 2021-01-05 | 娄底市速尔成科技有限公司 | Internet-based carrying unmanned aerial vehicle |
| CN112332236A (en) * | 2020-10-19 | 2021-02-05 | 国网浙江省电力有限公司岱山县供电公司 | Power electrical power distribution cabinet with switch seat anti-deformation mechanism |
| CN112520194A (en) * | 2020-12-18 | 2021-03-19 | 赵旭 | Transport case for solar cell panel |
| CN112923005A (en) * | 2021-03-03 | 2021-06-08 | 安徽绿沃循环能源科技有限公司 | Damping device for battery production equipment |
| KR102332670B1 (en) * | 2021-03-12 | 2021-12-01 | 성윤 | Ibration board for electronic drum |
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| KR100746286B1 (en) * | 2007-06-18 | 2007-08-13 | 유환홍 | High voltage distributor |
| CN206774955U (en) * | 2017-06-05 | 2017-12-19 | 吴佳锋 | The electric power cabinet that a kind of good heat dissipation effect is moved easily |
| CN207134626U (en) * | 2017-07-17 | 2018-03-23 | 航星通用电器（杭州）有限公司 | A kind of high-tension switch cabinet of vibration damping safety |
| CN208260671U (en) * | 2018-04-28 | 2018-12-21 | 郑州工业应用技术学院 | A kind of blender with damping device |
| CN208723342U (en) * | 2018-08-23 | 2019-04-09 | 皖能电气有限公司 | A kind of shockproof ground-above type high-tension switch cabinet mechanism |
| CN208737990U (en) * | 2018-08-13 | 2019-04-12 | 河南万锦电气设备有限公司 | A kind of anti-shock transformer |
-
2019
- 2019-12-05 CN CN201911234017.2A patent/CN111049009A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100746286B1 (en) * | 2007-06-18 | 2007-08-13 | 유환홍 | High voltage distributor |
| CN206774955U (en) * | 2017-06-05 | 2017-12-19 | 吴佳锋 | The electric power cabinet that a kind of good heat dissipation effect is moved easily |
| CN207134626U (en) * | 2017-07-17 | 2018-03-23 | 航星通用电器（杭州）有限公司 | A kind of high-tension switch cabinet of vibration damping safety |
| CN208260671U (en) * | 2018-04-28 | 2018-12-21 | 郑州工业应用技术学院 | A kind of blender with damping device |
| CN208737990U (en) * | 2018-08-13 | 2019-04-12 | 河南万锦电气设备有限公司 | A kind of anti-shock transformer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111653948A (en) * | 2020-05-12 | 2020-09-11 | 泉州七星电气有限公司 | Electric power electrical cabinet with external force buffering structure |
| CN112038913A (en) * | 2020-09-02 | 2020-12-04 | 江苏高泰电气有限公司 | Light shock attenuation switch board |
| CN112332236A (en) * | 2020-10-19 | 2021-02-05 | 国网浙江省电力有限公司岱山县供电公司 | Power electrical power distribution cabinet with switch seat anti-deformation mechanism |
| CN112173111A (en) * | 2020-11-05 | 2021-01-05 | 娄底市速尔成科技有限公司 | Internet-based carrying unmanned aerial vehicle |
| CN112173111B (en) * | 2020-11-05 | 2022-05-06 | 娄底市速尔成科技有限公司 | Internet-based carrying unmanned aerial vehicle |
| CN112520194A (en) * | 2020-12-18 | 2021-03-19 | 赵旭 | Transport case for solar cell panel |
| CN112923005A (en) * | 2021-03-03 | 2021-06-08 | 安徽绿沃循环能源科技有限公司 | Damping device for battery production equipment |
| KR102332670B1 (en) * | 2021-03-12 | 2021-12-01 | 성윤 | Ibration board for electronic drum |
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Application publication date: 20200421 |