CN210510117U - Buffer gear for electromechanical device maintenance - Google Patents
Buffer gear for electromechanical device maintenance Download PDFInfo
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- CN210510117U CN210510117U CN201921183100.7U CN201921183100U CN210510117U CN 210510117 U CN210510117 U CN 210510117U CN 201921183100 U CN201921183100 U CN 201921183100U CN 210510117 U CN210510117 U CN 210510117U
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Abstract
The utility model discloses a buffer gear for electromechanical device maintenance relates to electromechanical device maintenance technical field, and it includes the base, two bracing pieces of the last fixed surface of base are connected with, the top of bracing piece pass the fixed plate upper surface set up first through-hole and with the bottom fixed connection of telescoping device, the top of telescoping device is connected with second shells inner wall's last fixed surface, the lower surface of second casing and the upper surface overlap joint of fixed plate, the lower surface of fixed plate and the top fixed connection of second spring. This buffer gear for electromechanical device maintenance through the combined action of second movable rod, pivot, screw thread post, screw cap, connecting rod, stripper plate, fly leaf, slide bar, sliding sleeve and third spring to the regulation of the vibration range of second spring has been realized, thereby has realized carrying out the process of adjusting electromechanical device's buffer gear according to actual conditions, thereby has ensured electromechanical device's maintenance.
Description
Technical Field
The utility model relates to an electromechanical device maintains technical field, specifically is an electromechanical device maintains and uses buffer gear.
Background
The electromechanical equipment generally refers to machinery, electrical equipment and electrical automation equipment, and in a building, the electromechanical equipment is generally called machinery and pipeline equipment except for earthwork, carpentry, reinforcing steel bars and muddy water. Different from hardware, the product can realize certain functions.
At the in-process of carrying out the maintenance to electromechanical, electromechanical device can shake to need carry out the shock attenuation and cushion electromechanical device, traditional electromechanical device buffer gear is simple spring usually, makes electromechanical device's buffering effect poor, and easily makes electromechanical device rock, and does not have the regulation structure to buffer structure, can not adjust buffer structure's range according to actual conditions, thereby can not fine maintain electromechanical device, thereby bring inconvenience for the workman.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a buffer gear for electromechanical device maintenance has solved traditional electromechanical device buffer gear and has generally been simple spring for electromechanical device's buffering effect is poor, and easily makes electromechanical device rock, and does not have the regulation structure to buffer structure, can not adjust buffer structure's range according to actual conditions, thereby can not fine maintain electromechanical device, thereby bring inconvenient problem for the workman.
(II) technical scheme
In order to achieve the above purpose, the utility model adopts the technical proposal that: the utility model provides a buffer gear for electromechanical device maintenance, includes the base, the last fixed surface of base is connected with two bracing pieces, the top of bracing piece pass the first through-hole that the fixed plate upper surface was seted up and with the bottom fixed connection of telescoping device, the top of telescoping device and the upper surface fixed connection of second shells inner wall.
The lower surface of second casing and the upper surface overlap joint of fixed plate, the lower surface of fixed plate and the top fixed connection of second spring, the bottom of second spring and the upper surface fixed connection of base, and the second spring cup joints the outer wall at the bracing piece, the left and right sides face of bracing piece respectively with the opposite face fixed connection of two second sliders, and the one side that two second sliders kept away from mutually is sliding connection respectively in the second spout that second shells inner wall left and right sides face was seted up, the upper surface of second casing and the lower fixed connection of fly leaf.
The left and right sides face of fly leaf respectively with two slider's opposite face fixed connection, and slider's upper surface has seted up the standing groove, slider's top and bottom respectively with the upper surface and the lower fixed surface of recess inner wall are connected, the right flank at the backup pad is seted up to the recess, the lower surface of backup pad and the upper surface fixed connection of base, and the right flank of backup pad and the left surface fixed connection of connecting plate.
The upper surface joint of connecting plate has rotating device, rotating device's top and the lower fixed surface of second movable rod are connected, and rotating device's bottom and the top fixed connection of screw thread post, the outer wall threaded connection of screw thread post has the screw cap, the left and right sides face of screw cap respectively with the opposite face fixed connection of two connecting rods, and the equal fixedly connected with second telescopic link in top of two connecting rods, and the top of two second telescopic links and the lower fixed surface of connecting plate are connected, and the bottom of two connecting rods all with the last fixed surface of stripper plate be connected, the upper surface overlap joint of stripper plate and fly leaf.
Preferably, the telescopic device comprises a first telescopic rod, a first spring is sleeved on the outer wall of the first telescopic rod, and the top ends and the bottom ends of the first spring and the first telescopic rod are respectively and fixedly connected with the upper surface of the inner wall of the second shell and the top ends of the supporting rods.
Preferably, first telescopic link includes first casing, the upper surface of first casing and second shells inner wall's last fixed surface are connected, and first spout has all been seted up to first shells inner wall's left and right sides face, and the equal sliding connection of inner wall of two first spouts has first slider, and the opposite face of two first sliders respectively with the left and right sides face fixed connection of first movable rod, the bottom of first movable rod extend to the outside of first casing and with the top fixed connection of bracing piece.
Preferably, the sliding device comprises a sliding sleeve, the right side face of the sliding sleeve is fixedly connected with the left side face of the movable plate, the inner wall of the sliding sleeve is sleeved with a sliding rod, the top end and the bottom end of the sliding rod are respectively fixedly connected with the upper surface and the lower surface of the inner wall of the groove, the outer wall of the sliding rod is sleeved with a third spring, and the top end and the bottom end of the third spring are respectively fixedly connected with the lower surface of the sliding sleeve and the lower surface of the inner wall of the groove.
Preferably, rotating device includes the pivot, the top and the bottom of pivot respectively with the lower surface of second movable rod and the top fixed connection of screw thread post, and the outer wall of pivot has cup jointed the bearing, the joint of bearing is at the upper surface of connecting plate.
Preferably, two second through holes are formed in the upper surface of the base, and the two second through holes are located on the left side and the right side of the base respectively.
Preferably, the slide bar is rectangular, and the sliding sleeve is rectangular.
(III) advantageous effects
The beneficial effects of the utility model reside in that:
1. this buffer gear is used in electromechanical device maintenance, through the combined action of second movable rod, the apparatus further comprises a rotating shaft, the screw thread post, the screw cap, the connecting rod, the stripper plate, the fly leaf, the slide bar, the sliding sleeve and third spring, the workman is through forward or reverse rotation second movable rod, make the pivot take the screw thread post to rotate, make the screw cap take two connecting rod upward movements or downstream, make the stripper plate downstream and extrude the fly leaf, make the sliding sleeve downstream, the third spring shortens or the stripper plate upward movement, the sliding sleeve upward movement under the effect of third spring elasticity, make the fly leaf upward movement, thereby the regulation of the range of vibration of second spring has been realized, thereby the process of adjusting electromechanical device's buffer gear according to actual conditions has been realized, thereby electromechanical device's maintenance has been ensured.
2. This buffer gear is used in electromechanical device maintenance, through setting up first spring and third spring, electromechanical device vibrations, make the fly leaf downstream, second casing extrusion fixed plate, first spring shortens, the fixed plate extrudees the second spring, second spring and first spring reset, the fixed plate area second casing upward movement, thereby make the stripper plate area electromechanical device upward movement, it is reciprocal in proper order, thereby electromechanical device's buffering has been realized, and the buffer process is more steady, thereby the condition of electromechanical device's the emergence collision in the maintenance process has been avoided, thereby electromechanical device's life has been ensured.
3. This buffer gear for electromechanical device maintenance through setting up the second telescopic link to make the connecting rod take the lift of stripper plate more stable, and prevented the rotation of connecting rod, thereby prevented the rotation of stripper plate, make the overlap joint of stripper plate and fly leaf more stable, and prevented that the screw cap rotates along with the screw thread post, thereby realized the lift of screw cap.
4. This buffer gear for electromechanical device maintains through setting up slide bar and sliding sleeve for the fly leaf takes electromechanical device's lift more steady, and makes the lift of second casing more steady, and the shape of slide bar and sliding sleeve is the rectangle, thereby has prevented the rotation of fly leaf, makes electromechanical device's buffer process more steady.
5. This buffer gear for electromechanical device maintenance through setting up second spout and second slider to make the lift of second casing more steady, and prevented the rotation of second casing, thereby prevented the rotation of fly leaf.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
FIG. 2 is an enlarged schematic view of part A of the present invention;
fig. 3 is a schematic view of a front view of a cross-section structure of the first telescopic rod of the present invention.
In the figure: 1 base, 2 bracing pieces, 3 first through holes, 4 fixed plates, 5 telescoping devices, 51 first telescopic rods, 511 first shells, 512 first sliding grooves, 513 first sliding blocks, 514 first movable rods, 52 first springs, 6 second through holes, 7 second telescopic rods, 8 second shells, 9 second sliding blocks, 10 second sliding grooves, 11 second springs, 12 movable plates, 13 placing grooves, 14 sliding devices, 141 sliding sleeves, 142 sliding rods, 143 third springs, 15 grooves, 16 supporting plates, 17 extrusion plates, 18 connecting rods, 19 thread caps, 20 thread columns, 21 rotating devices, 211 rotating shafts, 212 bearings, 22 second movable rods and 23 connecting plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a technical solution: a buffer mechanism for maintaining electromechanical equipment comprises a base 1, wherein two second through holes 6 are formed in the upper surface of the base 1, and through the arrangement of the second through holes 6, workers can conveniently fix the base 1 through structures such as screws and nuts, the two second through holes 6 are respectively positioned on the left side and the right side of the base 1, two support rods 2 are fixedly connected to the upper surface of the base 1, the top ends of the support rods 2 penetrate through first through holes 3 formed in the upper surface of a fixed plate 4 and are fixedly connected with the bottom end of a telescopic device 5, the top end of the telescopic device 5 is fixedly connected with the upper surface of the inner wall of a second shell 8, the telescopic device 5 comprises a first telescopic rod 51, through the arrangement of the first telescopic rod 51, the lifting of the second shell 8 is more stable, the rotation of the second shell 8 is prevented, the first telescopic rod 51 comprises a first shell 511, the upper surface of the first shell 511 is fixedly connected with the upper surface of the inner wall of the second, and first spout 512 has all been seted up to the left and right sides face of first casing 511 inner wall, and the equal sliding connection of inner wall of two first spouts 512 has first slider 513, through setting up first spout 512 and first slider 513, make the lift of first casing 511 more steady, and the rotation of first casing 511 has been prevented, thereby make the lift of second casing 8 more steady, and the opposite face of two first sliders 513 respectively with the left and right sides face fixed connection of first movable rod 514, the bottom of first movable rod 514 extend to the outside of first casing 511 and with the top fixed connection of bracing piece 2, first spring 52 has been cup jointed to the outer wall of first telescopic link 51, the top and the bottom of first spring 52 and first telescopic link 51 respectively with the top fixed connection of second casing 8 inner wall upper surface and bracing piece 2.
The lower surface of the second shell 8 is overlapped with the upper surface of the fixed plate 4, the lower surface of the fixed plate 4 is fixedly connected with the top end of the second spring 11, the electromechanical device vibrates by arranging the first spring 52 and the third spring 143, the movable plate 12 moves downwards, the second shell 8 extrudes the fixed plate 4, the first spring 52 is shortened, the fixed plate 4 extrudes the second spring 11, the second spring 11 and the first spring 52 are reset, the fixed plate 4 drives the second shell 8 to move upwards, so that the extrusion plate 17 drives the electromechanical device to move upwards and reciprocate in sequence, the buffering of the electromechanical device is realized, the buffering process is more stable, the collision of the electromechanical device in the maintenance process is avoided, the service life of the electromechanical device is ensured, the bottom end of the second spring 11 is fixedly connected with the upper surface of the base 1, and the second spring 11 is sleeved on the outer wall of the support rod 2, the left and right sides face of the supporting rod 2 is respectively fixedly connected with the opposite faces of the two second sliding blocks 9, and the faces, far away from the two second sliding blocks 9, of the supporting rod are respectively connected in the second sliding grooves 10 formed in the left and right sides face of the inner wall of the second shell 8 in a sliding mode, and through the arrangement of the second sliding grooves 10 and the second sliding blocks 9, the lifting of the second shell 8 is enabled to be more stable, the rotation of the second shell 8 is prevented, the rotation of the movable plate 12 is prevented, and the upper surface of the second shell 8 is fixedly connected with the lower surface of the movable plate 12.
The left side and the right side of the movable plate 12 are respectively and fixedly connected with the opposite surfaces of the two sliding devices 14, the upper surface of the sliding device 14 is provided with a placing groove 13, the top end and the bottom end of the sliding device 14 are respectively and fixedly connected with the upper surface and the lower surface of the inner wall of the groove 15, the sliding device 14 comprises a sliding sleeve 141, the right side of the sliding sleeve 141 is fixedly connected with the left side of the movable plate 12, the inner wall of the sliding sleeve 141 is sleeved with a sliding rod 142, the sliding rod 142 is rectangular, the sliding sleeve 141 is rectangular, the lifting of the movable plate 12 with the electromechanical equipment is more stable by arranging the sliding rod 142 and the sliding sleeve 141, the sliding rod 142 and the sliding sleeve 141 are both rectangular, thereby the rotation of the movable plate 12 is prevented, the buffering process of the electromechanical equipment is more stable, the top end and the bottom end of the sliding rod 142 are respectively and fixedly connected with the upper surface and the, the top end and the bottom end of the third spring 143 are respectively fixedly connected with the lower surface of the sliding sleeve 141 and the lower surface of the inner wall of the groove 15, and by arranging the third spring 143, the upward movement of the movable plate 12 is realized, the buffering effect of the electromechanical device is ensured, the groove 15 is arranged on the right side surface of the supporting plate 16, the lower surface of the supporting plate 16 is fixedly connected with the upper surface of the base 1, and the right side surface of the supporting plate 16 is fixedly connected with the left side surface of the connecting plate 23.
The upper surface of the connecting plate 23 is clamped with a rotating device 21, the top end of the rotating device 21 is fixedly connected with the lower surface of the second movable rod 22, the bottom end of the rotating device 21 is fixedly connected with the top end of the threaded column 20, the rotating device 21 comprises a rotating shaft 211, the top end and the bottom end of the rotating shaft 211 are respectively fixedly connected with the lower surface of the second movable rod 22 and the top end of the threaded column 20, a bearing 212 is sleeved on the outer wall of the rotating shaft 211, the threaded column 20 rotates more stably by arranging the bearing 212 and the rotating shaft 211, the bearing 212 is clamped on the upper surface of the connecting plate 23, a threaded cap 19 is in threaded connection with the outer wall of the threaded column 20, a worker rotates the second movable rod 22 forwards or reversely by arranging the threaded cap 19 and the threaded column 20, the rotating shaft 211 drives the threaded column 20 to rotate, the threaded cap 19 drives the two connecting rods 18 to move upwards or downwards, the extrusion plate 17 moves downwards and extrudes, the sliding sleeve 141 moves downwards, the third spring 143 shortens or the extrusion plate 17 moves upwards, the sliding sleeve 141 moves upwards under the action of the elastic force of the third spring 143, the movable plate 12 moves upwards, so that the adjustment of the vibration amplitude of the second spring 11 is realized, the adjustment process of the buffer mechanism of the electromechanical device according to actual conditions is realized, so that the maintenance of the electromechanical device is ensured, the left side surface and the right side surface of the threaded cap 19 are respectively and fixedly connected with the opposite surfaces of the two connecting rods 18, the top ends of the two connecting rods 18 are respectively and fixedly connected with the second telescopic rods 7, the top ends of the two second telescopic rods 7 are fixedly connected with the lower surface of the connecting plate 23, the lifting of the connecting rod 18 with the extrusion plate 17 is more stable by arranging the second telescopic rods 7, the threaded cap 19 is prevented from rotating along with the threaded column 20, and the lifting of the threaded cap 19 is realized, and the bottom ends of the two connecting rods 18 are fixedly connected with the upper surface of the extrusion plate 17, and the extrusion plate 17 is lapped with the upper surface of the movable plate 12.
The utility model discloses an operating procedure does:
s1, the worker rotates the second movable rod 22 in a forward or reverse direction to make the rotating shaft 211 rotate with the threaded post 20, to make the threaded cap 19 move upwards or downwards with the two connecting rods 18, to make the pressing plate 17 move downwards and press the movable plate 12, to make the sliding sleeve 141 move downwards, to shorten the third spring 143 or to make the pressing plate 17 move upwards, to make the sliding sleeve 141 move upwards under the action of the elastic force of the third spring 143 to make the movable plate 12 move upwards, and to stop rotating the second movable rod 22 when the vibration amplitude of the second spring 11 is adjusted;
s2, the worker fixes the electromechanical device in the placing groove 13, and then performs maintenance on the electromechanical device, the electromechanical device vibrates, so that the movable plate 12 moves downward, the second housing 8 presses the fixed plate 4, the first spring 52 shortens, and the fixed plate 4 presses the second spring 11.
S3, the second spring 11 and the first spring 52 are reset, the fixing plate 4 carries the second shell 8 to move upwards, the extrusion plate 17 carries the electromechanical device to move upwards, and the electromechanical device is sequentially reciprocated, so that the electromechanical device is buffered
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides an electromechanical device maintains and uses buffer gear, includes base (1), its characterized in that: the upper surface of the base (1) is fixedly connected with two supporting rods (2), the top ends of the supporting rods (2) penetrate through first through holes (3) formed in the upper surface of a fixing plate (4) and are fixedly connected with the bottom ends of telescopic devices (5), and the top ends of the telescopic devices (5) are fixedly connected with the upper surface of the inner wall of a second shell (8);
the lower surface of the second shell (8) is in lap joint with the upper surface of the fixed plate (4), the lower surface of the fixed plate (4) is fixedly connected with the top end of a second spring (11), the bottom end of the second spring (11) is fixedly connected with the upper surface of the base (1), the second spring (11) is sleeved on the outer wall of the supporting rod (2), the left side surface and the right side surface of the supporting rod (2) are respectively and fixedly connected with opposite surfaces of the two second sliding blocks (9), the surface far away from the two second sliding blocks (9) is respectively and slidably connected into second sliding grooves (10) formed in the left side surface and the right side surface of the inner wall of the second shell (8), and the upper surface of the second shell (8) is fixedly connected with the lower surface of the movable plate (12);
the left side surface and the right side surface of the movable plate (12) are respectively fixedly connected with opposite surfaces of the two sliding devices (14), the upper surface of each sliding device (14) is provided with a placing groove (13), the top end and the bottom end of each sliding device (14) are respectively fixedly connected with the upper surface and the lower surface of the inner wall of each groove (15), each groove (15) is formed in the right side surface of the corresponding supporting plate (16), the lower surface of each supporting plate (16) is fixedly connected with the upper surface of the corresponding base (1), and the right side surface of each supporting plate (16) is fixedly connected with the left side surface of the corresponding connecting plate (23);
the upper surface joint of connecting plate (23) has rotating device (21), the top of rotating device (21) and the lower fixed surface of second movable rod (22) are connected, and the bottom of rotating device (21) and the top fixed connection of screw thread post (20), the outer wall threaded connection of screw thread post (20) has screw cap (19), the left and right sides face of screw cap (19) respectively with the opposite face fixed connection of two connecting rods (18), and the equal fixedly connected with second telescopic link (7) in top of two connecting rods (18), and the top of two second telescopic links (7) and the lower fixed surface of connecting plate (23) are connected, and the bottom of two connecting rods (18) all with the upper surface fixed connection of stripper plate (17), the upper surface overlap joint of stripper plate (17) and fly leaf (12).
2. The electromechanical device maintenance buffer mechanism according to claim 1, characterized in that: the telescopic device (5) comprises a first telescopic rod (51), a first spring (52) is sleeved on the outer wall of the first telescopic rod (51), and the top ends and the bottom ends of the first spring (52) and the first telescopic rod (51) are respectively fixedly connected with the upper surface of the inner wall of the second shell (8) and the top end of the supporting rod (2).
3. The electromechanical device maintenance buffer mechanism according to claim 2, wherein: first telescopic link (51) include first casing (511), the upper surface of first casing (511) is connected with the upper surface fixed connection of second casing (8) inner wall, and first spout (512) have all been seted up to the left and right sides face of first casing (511) inner wall, and the equal sliding connection of inner wall of two first spouts (512) has first slider (513), and the opposite face of two first sliders (513) respectively with the left and right sides face fixed connection of first movable rod (514), the bottom of first movable rod (514) extend to the outside of first casing (511) and with the top fixed connection of bracing piece (2).
4. The electromechanical device maintenance buffer mechanism according to claim 1, characterized in that: slide device (14) are including sliding sleeve (141), the right flank of sliding sleeve (141) and the left surface fixed connection of fly leaf (12), and the inner wall of sliding sleeve (141) has cup jointed slide bar (142), and the top and the bottom of slide bar (142) respectively with the upper surface and the lower surface fixed connection of recess (15) inner wall, and the outer wall of slide bar (142) has cup jointed third spring (143), the top and the bottom of third spring (143) respectively with the lower surface of sliding sleeve (141) and the lower surface fixed connection of recess (15) inner wall.
5. The electromechanical device maintenance buffer mechanism according to claim 1, characterized in that: rotating device (21) are including pivot (211), the top and the bottom of pivot (211) respectively with the lower surface of second movable rod (22) and the top fixed connection of screw thread post (20), and the outer wall of pivot (211) has cup jointed bearing (212), the joint of bearing (212) is at the upper surface of connecting plate (23).
6. The electromechanical device maintenance buffer mechanism according to claim 1, characterized in that: two second through holes (6) are formed in the upper surface of the base (1), and the two second through holes (6) are located on the left side and the right side of the base (1) respectively.
7. The electromechanical device maintenance buffer mechanism according to claim 4, wherein: the sliding rod (142) is rectangular, and the sliding sleeve (141) is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921183100.7U CN210510117U (en) | 2019-07-25 | 2019-07-25 | Buffer gear for electromechanical device maintenance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921183100.7U CN210510117U (en) | 2019-07-25 | 2019-07-25 | Buffer gear for electromechanical device maintenance |
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| CN210510117U true CN210510117U (en) | 2020-05-12 |
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| CN201921183100.7U Active CN210510117U (en) | 2019-07-25 | 2019-07-25 | Buffer gear for electromechanical device maintenance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744795A (en) * | 2020-06-30 | 2020-10-09 | 菏泽畅千机械设备有限公司 | Empty bag detection equipment for food production |
| CN113266750A (en) * | 2021-05-17 | 2021-08-17 | 尚洪娟 | Laser power control device and method for low-power application |
| CN113463785A (en) * | 2021-06-28 | 2021-10-01 | 天津泰莱高创科技有限公司 | Easy-to-mount steel structure anti-seismic buffer base for building engineering and use method |
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2019
- 2019-07-25 CN CN201921183100.7U patent/CN210510117U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744795A (en) * | 2020-06-30 | 2020-10-09 | 菏泽畅千机械设备有限公司 | Empty bag detection equipment for food production |
| CN113266750A (en) * | 2021-05-17 | 2021-08-17 | 尚洪娟 | Laser power control device and method for low-power application |
| CN113266750B (en) * | 2021-05-17 | 2022-08-02 | 北京新科以仁科技发展有限公司 | Laser power control device and method for low-power application |
| CN113463785A (en) * | 2021-06-28 | 2021-10-01 | 天津泰莱高创科技有限公司 | Easy-to-mount steel structure anti-seismic buffer base for building engineering and use method |
| CN113463785B (en) * | 2021-06-28 | 2022-10-11 | 浙江千凝科技有限公司 | Easy-to-mount steel structure anti-seismic buffer base for building engineering and use method |
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