CN113819378A - Two-way antidetonation support of circular fan - Google Patents
Two-way antidetonation support of circular fan Download PDFInfo
- Publication number
- CN113819378A CN113819378A CN202111092856.2A CN202111092856A CN113819378A CN 113819378 A CN113819378 A CN 113819378A CN 202111092856 A CN202111092856 A CN 202111092856A CN 113819378 A CN113819378 A CN 113819378A
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- Prior art keywords
- mounting
- shock absorber
- support
- sleeve
- bar
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Classifications
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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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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- 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
- F16F2230/00—Purpose; Design features
- F16F2230/46—Maintenance
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of anti-seismic supports, in particular to a bidirectional anti-seismic support for a circular fan, which comprises a shock absorber and a support bar, wherein the shock absorber comprises an installation sleeve, a slide block is slidably connected between the side walls of the inner cavity of the installation sleeve, the bottom of the slide block is fixedly connected with a slide rod, the slide rod penetrates through the bottom of the installation sleeve, a first spring is fixedly connected between the top of the slide block and the top of the inner cavity of the installation sleeve, and an installation rod is fixedly connected to the top of the installation sleeve; simultaneously the bumper shock absorber is including installation sleeve, slider, slide bar, installation pole and first spring for can extrude first spring through slide bar and slider when vibrations, thereby play the cushioning effect, and the setting of bumper shock absorber integration can conveniently be dismantled and change more.
Description
Technical Field
The invention relates to the technical field of anti-seismic supports, in particular to a bidirectional anti-seismic support for a circular fan.
Background
At present, an anti-seismic support is various components or devices which limit the displacement of electromechanical engineering facilities, control the vibration of the facilities and transmit load to a bearing structure. When meeting the earthquake of earthquake fortification intensity of local area, the building water supply and drainage, fire control, heating, ventilation, air conditioner, gas, heating power, electric power, communication and other electromechanical engineering facilities reinforced by the anti-seismic support can achieve the aims of reducing earthquake damage, reducing and preventing secondary disasters as much as possible, thereby achieving the aim of reducing casualties and property loss.
The shock-absorbing component on the existing anti-seismic support can not be detached independently, so that the anti-seismic effect of the anti-seismic support is easily reduced when the shock-absorbing component fails after being used for a period of time. Therefore, the circular fan bidirectional anti-seismic support is provided to solve the problems.
Disclosure of Invention
The invention aims to provide a bidirectional anti-seismic support for a circular fan to solve the technical problem.
In order to achieve the purpose, the invention provides the following technical scheme: a bidirectional anti-seismic support for a circular fan comprises a shock absorber and a support bar, wherein the shock absorber comprises a mounting sleeve, a sliding block is connected between the side walls of the inner cavity of the mounting sleeve in a sliding manner, the bottom of the sliding block is fixedly connected with a sliding rod, the sliding rod penetrates through the bottom of the mounting sleeve, a first spring is fixedly connected between the top of the sliding block and the top of the inner cavity of the mounting sleeve, and a mounting bar is fixedly connected to the top of the mounting sleeve;
the fan support is characterized in that a circular fan is mounted at the top of the support bar, mounting columns are symmetrically inserted at two ends of the support bar, the bottom of each mounting column penetrates through the support bar and is in threaded connection with a first nut, a limiting block is fixedly connected to the top of each mounting column, a first connecting column is fixedly connected to the top of each limiting block, a damper is detachably mounted at one end, away from the limiting block, of each first connecting column, and a vertical support bar is detachably mounted at one end, away from the first connecting column, of each damper;
two sets of a side symmetry rigid coupling that the stopper kept away from each other has first articulated seat, first articulated seat articulates there is the second spliced pole, the one end releasable connection that first articulated seat was kept away from to the second spliced pole has the bumper shock absorber, the one end removable mounting that the second spliced pole was kept away from to the bumper shock absorber has the bearing diagonal pole.
Preferably, the outer walls of the first connecting column and the second connecting column are both in threaded connection with a first connecting sleeve, and the outer wall of the sliding rod is provided with a first external thread matched with the first connecting sleeve;
the outer walls of the vertical supporting rod and the inclined supporting rod are respectively in threaded connection with a second connecting sleeve, and second external threads matched with the second connecting sleeves are formed in the outer wall of the mounting rod.
Preferably, the inner diameter of the first connecting sleeve is equal to that of the second connecting sleeve, and the internal threads of the first connecting sleeve and the second connecting sleeve are the same.
Preferably, still include the mounting bar, through bolt looks rigid coupling between perpendicular bracing piece and the mounting bar, the spout has been seted up to mounting bar both sides bottom, spout sliding connection has the slide, slide bottom rigid coupling has the articulated seat of second, the bracing piece articulates with the articulated seat of second mutually to one side.
Preferably, the mounting bar both sides wall is seted up the spacing groove, and the spacing groove link up with the spout mutually, the symmetrical rigid coupling of slide both sides wall has the bolt post of mutually supporting with the spacing groove, the bolt post runs through the spacing groove and the spiro union has the second nut.
Preferably, the outer wall of the sliding rod is sleeved with a second spring, and the second spring is located between the sliding block and the bottom of the inner cavity of the mounting sleeve.
Preferably, the bottom of the mounting sleeve is of a threaded detachable structure.
Preferably, the mounting post outer wall cover is equipped with the third spring, and the third spring is located between stopper and the support bar.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the shock absorber in the traditional anti-seismic support is detachably connected with the support rod, so that the shock absorber is independently detached and replaced, and the problem of failure of the anti-seismic support is further avoided; simultaneously the bumper shock absorber is including installation sleeve, slider, slide bar, installation pole and first spring for can extrude first spring through slide bar and slider when vibrations, thereby play the cushioning effect, and the setting of bumper shock absorber integration can conveniently be dismantled and change more.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the structure of the shock absorber of the present invention;
fig. 4 is a schematic structural view of the mounting bar of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a shock absorber; 101. installing a sleeve; 102. a slider; 103. a slide bar; 104. a first spring; 105. mounting a rod; 106. a second spring; 2. a supporting strip; 3. a circular fan; 4. mounting a column; 5. a first nut; 6. a limiting block; 7. a first connecting column; 8. a vertical support rod; 9. a first hinge mount; 10. a second connecting column; 11. an inclined support rod; 12. a first connecting sleeve; 13. a second connecting sleeve; 14. mounting a bar; 15. a chute; 16. a slide base; 17. a second hinge mount; 18. a limiting groove; 19. a bolt column; 20. a second nut; 21. and a third spring.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a bidirectional anti-seismic support for a circular fan comprises a shock absorber 1 and a supporting bar 2, wherein the shock absorber 1 comprises a mounting sleeve 101, a sliding block 102 is connected between the side walls of the inner cavity of the mounting sleeve 101 in a sliding manner, the bottom of the sliding block 102 is fixedly connected with a sliding rod 103, the sliding rod 103 penetrates through the bottom of the mounting sleeve 101, a first spring 104 is fixedly connected between the top of the sliding block 102 and the top of the inner cavity of the mounting sleeve 101, and a mounting bar 105 is fixedly connected to the top of the mounting sleeve 101;
the top of the support bar 2 is provided with a circular fan 3, two ends of the support bar 2 are symmetrically inserted with mounting columns 4, the bottom of each mounting column 4 penetrates through the corresponding support bar 2 and is connected with a first nut 5 in a threaded manner, the top of each mounting column 4 is fixedly connected with a limiting block 6, the top of each limiting block 6 is fixedly connected with a first connecting column 7, one end, far away from the corresponding limiting block 6, of each first connecting column 7 is detachably provided with a damper 1, and one end, far away from the corresponding first connecting column 7, of each damper 1 is detachably provided with a vertical support bar 8;
a lateral surface symmetry rigid coupling that two sets of stoppers 6 kept away from each other has first articulated seat 9, and first articulated seat 9 articulates there is second spliced pole 10, and the one end releasable connection that first articulated seat 9 was kept away from to second spliced pole 10 has bumper shock absorber 1, and the removable oblique bracing piece 11 of installing of one end that second spliced pole 10 was kept away from to bumper shock absorber 1.
The outer walls of the first connecting column 7 and the second connecting column 10 are both in threaded connection with a first connecting sleeve 12, and the outer wall of the sliding rod 103 is provided with a first external thread matched with the first connecting sleeve 12;
the outer walls of the vertical supporting rod 8 and the inclined supporting rod 11 are respectively in threaded connection with a second connecting sleeve 13, the outer wall of the mounting rod 104 is provided with second external threads matched with the second connecting sleeves 13, and the shock absorber can be conveniently detached and mounted in a connecting mode of the first connecting sleeve and the second connecting sleeve, so that the shock absorber can be conveniently replaced.
Specifically, the inner diameter of the first connecting sleeve 12 is equal to the inner diameter of the second connecting sleeve 13, and the internal threads are the same, so that the first connecting sleeve and the second connecting sleeve can be used universally.
Specifically, still include mounting bar 14, through bolt looks rigid coupling between vertical support pole 8 and the mounting bar 14, spout 15 has been seted up to 14 both sides bottoms of mounting bar, spout 15 sliding connection has slide 16, 16 bottom rigid couplings of slide have the articulated seat of second 17, the bracing piece 11 is articulated mutually with the articulated seat of second 17, can the integral type install when making the shock-resistant support mounting through setting up the mounting bar, thereby improve the installation effectiveness of shock-resistant support, and through slide sliding connection between bearing diagonal post and the mounting bar, thereby can adjust the angle between bearing diagonal post and the vertical support post, thereby adjust the shock attenuation effect of bearing diagonal post.
Specifically, limiting grooves 18 are formed in two side walls of the mounting bar 14, the limiting grooves 18 are communicated with the sliding grooves 15, bolt columns 19 matched with the limiting grooves 18 are symmetrically and fixedly connected to two side walls of the sliding seat 16, the bolt columns 19 penetrate through the limiting grooves 18 and are in threaded connection with second nuts 20, sliding of the sliding seat is enabled to be more stable, and locking and fixing can be achieved through the matching of the second nuts and the bolt columns after the position of the sliding seat is adjusted.
Specifically, the outer wall of the sliding rod 103 is sleeved with a second spring 106, and the second spring 106 is located between the sliding block 102 and the bottom of the inner cavity of the mounting sleeve 101, so that the damping effect of the damper is further improved.
Specifically, installation sleeve 101 bottom is screw thread detachable construction for can open installation sleeve bottom, then take off slide bar and slider, thereby change first spring.
Specifically, 4 outer wall covers of erection column are equipped with third spring 21, and third spring 21 is located between stopper 6 and the support bar 2, can further reduce the vibrations power between support bar and the erection column through the third spring.
The first embodiment is as follows:
firstly, assembling the anti-seismic support, wherein during assembly, the third spring 21 is sleeved on the outer wall of the mounting rod 4 and positioned at the bottom of the limiting block 6, then the mounting rod 4 is inserted into two ends of the supporting bar 2, the third spring 21 is positioned between the limiting block 6 and the supporting bar 2, and then the mounting rod 4 is locked and fixed from the bottom of the supporting bar 2 by using the first nut 5;
then, one end of a sliding rod 103 of the shock absorber 1 is aligned to the first connecting column 7, then the first connecting sleeve 12 is rotated, the first connecting sleeve 12 is rotated to a position between the sliding rod 103 and the first connecting column 7, so that the shock absorber 1 and the first connecting column 7 are fixed, then the mounting rod 105 of the shock absorber 1 is aligned to the vertical supporting rod 8, then the second connecting sleeve 13 is rotated to a position between the mounting rod 105 and the vertical supporting rod 8, so that the mounting of the shock absorber 1 is completed, and the connecting mode of the connecting sleeves is adopted, so that the mounting and dismounting are convenient, the stable transmission of vibration force can be realized, lateral component force cannot be generated, the shock absorption effect of the shock absorber 1 is better, and the connecting modes of the inclined supporting rod 11 and the second connecting column 10 to the shock absorber 1 are consistent with the mode of the first connecting column 7;
then, one end of the vertical support rod 8 is locked and fixed on the mounting bar 14 through a bolt, one end of the inclined support rod 11 is locked and fixed on the second hinge seat 17 through a bolt, and then the sliding seat 16 and the second hinge seat 17 are slid according to the requirements of the mounting environment, so that the angle of the inclined support rod 11 is adjusted, and the inclined support rod 11 can play different shock absorption effects;
and finally, the circular fan (such as an axial flow fan) is installed at the top of the support bar 2 through bolts, and the front side and the rear side of the circular fan are respectively locked and fixed by adopting two groups of anti-seismic supports. Meanwhile, the top of the support bar 2 is provided with a strip-shaped mounting groove which is matched with the circular fan mounting hole in a penetrating way, so that the mounting position of the circular fan can be adjusted during mounting, and the circular fan can adapt to circular fans of different sizes; during installation, bolts are inserted into the installation holes of the circular fan and penetrate through the strip-shaped installation grooves, then the bottoms of the support bars 2 are locked and fixed by nuts to complete installation of the circular fan, and then the whole body is installed on a working position through the installation bars 14;
when producing vibrations, on the bumper shock absorber 1 of vertical support pole 8 is transmitted to the ascending vibrations of vertical direction, and shake from top to bottom and drive slide bar 103 and slider 102 and slide from top to bottom along the installation sleeve 101 inner wall, thereby extrude first spring 104 and second spring 106 and consume the shaking force, thereby avoid shaking force to cause to drop on transmitting the mounting bar 1, on the bumper shock absorber 1 of bracing piece 11 is transmitted to the ascending vibrations of oblique direction, promote the slider 103 and slide, extrude first spring 104 and second spring 106 and consume the shaking force.
When the shock absorber 1 fails after being used for a period of time, the first connecting sleeve 12 and the second connecting sleeve 13 are respectively rotated, then the shock absorber 1 is taken down and replaced by a new shock absorber 1, or after the shock absorber 1 is taken down, the bottom of the mounting sleeve 101 is rotated, then the sliding rod 103 and the sliding block 102 are taken out, the first spring 104 and the second spring 106 are taken out and replaced, then the mounting is carried out again, and the dismounting process is simple and convenient.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "the other end", "upper", "one side", "inner", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are only for convenience of description and simplicity of 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.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (8)
1. The utility model provides a two-way antidetonation support of circular fan which characterized in that: the shock absorber comprises a shock absorber (1) and a supporting bar (2), wherein the shock absorber (1) comprises a mounting sleeve (101), a sliding block (102) is connected between the side walls of the inner cavity of the mounting sleeve (101) in a sliding manner, the bottom of the sliding block (102) is fixedly connected with a sliding rod (103), the sliding rod (103) penetrates through the bottom of the mounting sleeve (101), a first spring (104) is fixedly connected between the top of the sliding block (102) and the top of the inner cavity of the mounting sleeve (101), and a mounting rod (105) is fixedly connected to the top of the mounting sleeve (101);
the fan support is characterized in that a circular fan (3) is installed at the top of the support bar (2), mounting columns (4) are symmetrically inserted at two ends of the support bar (2), the bottom of each mounting column (4) penetrates through the support bar (2) and is connected with a first nut (5) in a threaded manner, a limiting block (6) is fixedly connected to the top of each mounting column (4), a first connecting column (7) is fixedly connected to the top of each limiting block (6), a shock absorber (1) is detachably installed at one end, far away from the limiting block (6), of each first connecting column (7), and a vertical support bar (8) is detachably installed at one end, far away from the first connecting column (7), of each shock absorber (1);
two sets of a side symmetry rigid coupling that stopper (6) kept away from each other has first articulated seat (9), first articulated seat (9) articulate there is second spliced pole (10), the one end releasable connection that first articulated seat (9) were kept away from in second spliced pole (10) has bumper shock absorber (1), the removable inclined support pole (11) of installing of one end that second spliced pole (10) were kept away from in bumper shock absorber (1).
2. The bidirectional anti-seismic support for the circular fan according to claim 1, is characterized in that: the outer walls of the first connecting column (7) and the second connecting column (10) are respectively in threaded connection with a first connecting sleeve (12), and the outer wall of the sliding rod (103) is provided with a first external thread which is matched with the first connecting sleeve (12);
the outer walls of the vertical supporting rod (8) and the inclined supporting rod (11) are respectively in threaded connection with a second connecting sleeve (13), and second external threads matched with the second connecting sleeves (13) are formed in the outer wall of the mounting rod (104).
3. The bidirectional anti-seismic support for the circular fan as claimed in claim 2, wherein: the inner diameter of the first connecting sleeve (12) is equal to that of the second connecting sleeve (13), and the internal threads of the first connecting sleeve and the second connecting sleeve are the same.
4. The bidirectional anti-seismic support for the circular fan according to claim 1, is characterized in that: still include mounting bar (14), through bolt looks rigid coupling between perpendicular bracing piece (8) and mounting bar (14), spout (15) have been seted up to mounting bar (14) both sides bottom, spout (15) sliding connection has slide (16), slide (16) bottom rigid coupling has the articulated seat of second (17), the bracing piece to one side (11) are articulated mutually with the articulated seat of second (17).
5. The bidirectional anti-seismic support for the circular fan as claimed in claim 4, wherein: spacing groove (18) have been seted up to mounting bar (14) both sides wall, and spacing groove (18) link up with spout (15) mutually, the symmetrical rigid coupling of slide (16) both sides wall has the bolt post (19) of mutually supporting with spacing groove (18), bolt post (19) run through spacing groove (18) and spiro union has second nut (20).
6. The bidirectional anti-seismic support for the circular fan according to claim 1, is characterized in that: the outer wall of the sliding rod (103) is sleeved with a second spring (106), and the second spring (106) is located between the sliding block (102) and the bottom of the inner cavity of the mounting sleeve (101).
7. The bidirectional earthquake-resistant support for the circular fan as claimed in claim 1 or 6, wherein: the bottom of the mounting sleeve (101) is of a threaded detachable structure.
8. The bidirectional anti-seismic support for the circular fan according to claim 1, is characterized in that: the outer wall of the mounting column (4) is sleeved with a third spring (21), and the third spring (21) is located between the limiting block (6) and the supporting bar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111092856.2A CN113819378A (en) | 2021-09-17 | 2021-09-17 | Two-way antidetonation support of circular fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111092856.2A CN113819378A (en) | 2021-09-17 | 2021-09-17 | Two-way antidetonation support of circular fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113819378A true CN113819378A (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111092856.2A Pending CN113819378A (en) | 2021-09-17 | 2021-09-17 | Two-way antidetonation support of circular fan |
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| Country | Link |
|---|---|
| CN (1) | CN113819378A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030983A (en) * | 2022-05-18 | 2022-09-09 | 广东明阳电气股份有限公司 | Shock insulation support and transformer with same |
| CN116742548A (en) * | 2023-08-08 | 2023-09-12 | 山东峻廷电力设备有限公司 | Wind-resistant and shock-resistant cable supporting device |
-
2021
- 2021-09-17 CN CN202111092856.2A patent/CN113819378A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030983A (en) * | 2022-05-18 | 2022-09-09 | 广东明阳电气股份有限公司 | Shock insulation support and transformer with same |
| CN116742548A (en) * | 2023-08-08 | 2023-09-12 | 山东峻廷电力设备有限公司 | Wind-resistant and shock-resistant cable supporting device |
| CN116742548B (en) * | 2023-08-08 | 2023-12-19 | 山东峻廷电力设备有限公司 | Wind-resistant and shock-resistant cable supporting device |
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