CN215888689U - Coupling beam damper - Google Patents
Coupling beam damper Download PDFInfo
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- CN215888689U CN215888689U CN202122141877.0U CN202122141877U CN215888689U CN 215888689 U CN215888689 U CN 215888689U CN 202122141877 U CN202122141877 U CN 202122141877U CN 215888689 U CN215888689 U CN 215888689U
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Abstract
The utility model provides a coupling beam damper, which belongs to the field of dampers and comprises a damper body, wherein the damper body comprises a first coupling beam, a second coupling beam and a damping structure, when the coupling beam damper is used, the first coupling beam and the second coupling beam are respectively arranged on the inner side of concrete, then a buffer assembly is arranged at the joint of the first coupling beam and the damping structure and the joint of the second coupling beam and the damping structure and then are connected through a first dismounting assembly, so that the buffer assembly can be stably arranged at the corner joint of the inner side of the damper body, a support assembly is arranged on the surface of the buffer assembly, a support column in the support assembly is arranged through the first mounting plate and the second mounting plate, the support assembly is arranged on the outer side of the buffer assembly through the second dismounting assembly, and a better support effect on the buffer assembly can be achieved, thereby greatly reducing the possibility of safety problems.
Description
Technical Field
The utility model relates to the field of dampers, in particular to a coupling beam damper.
Background
At present, the research of energy dissipation and shock absorption technology is continuously and deeply carried out, engineering application is promoted unprecedentedly, a coupling beam damper is used as an energy dissipation and shock absorption component and is also continuously applied to actual engineering, the coupling beam damper is a special shock absorption component integrating bearing and energy consumption, the bearing requirement of the component is ensured during design, the shock absorption and energy consumption requirement of the component is also ensured, the coupling beam damper is one of metal dampers and mainly depends on the plastic deformation of a steel plate in a set area to dissipate seismic energy, the initial rigidity of the damper is high, the bearing capacity and the energy consumption capacity of the damper are good, and under the action of small shock, the coupling beam damper is connected with two side wall limbs to jointly provide lateral rigidity and bearing capacity for the structure; under the action of medium and large earthquakes, the coupling beam damper firstly yields with the wall limb to dissipate earthquake energy of the input structure, and simultaneously changes the dynamic characteristics of the structure, reduces earthquake damage of the structure under the action of the earthquake, effectively protects the main structure and improves the earthquake fortification capability of the building structure; however, the existing coupling beam damper may not have enough structural strength, so that the deformation or the falling of the embedded part embedded in the concrete and the damping component in the damper is caused, and a great safety problem exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coupling beam damper which can strengthen the connection strength of a damping structure and a first coupling beam and a second coupling beam and reduce the risk of safety problems.
Another object of the present invention is to provide a link beam damper that can be quickly disassembled and assembled with respect to an internal support assembly and a buffering assembly.
The utility model is realized by the following steps: including the attenuator body, the attenuator body includes that first even roof beam, second link roof beam and damping structure, first even roof beam passes through damping structure and is connected with the second even roof beam, first even roof beam is provided with the buffering subassembly with the junction of damping structure, the second links the roof beam and also is provided with the buffering subassembly with the junction of damping structure, the outside of buffering subassembly is provided with supporting component, and the surface of buffering subassembly is provided with first dismouting subassembly, supporting component's surface is provided with second dismouting subassembly.
The first connecting beam and the second connecting beam are respectively arranged on the inner side of the concrete, the buffering assembly is arranged at the joint of the first connecting beam and the damping structure and the joint of the second connecting beam and the damping structure and is connected with the first dismounting assembly, so that the buffering assembly can be stably arranged at the corner joint of the inner side of the damper body, the supporting assembly is arranged on the surface of the buffering assembly, the supporting column in the supporting assembly is arranged through the first mounting plate and the second mounting plate, and the supporting assembly is arranged on the outer side of the buffering assembly through the second dismounting assembly, so that a better supporting effect can be achieved on the buffering assembly, and the possibility of safety problems can be greatly reduced; and because first dismouting subassembly and second dismouting subassembly all can dismantle to can be quick install and dismantle supporting component and buffering subassembly, the structure of first dismouting subassembly and second dismouting subassembly is comparatively stable moreover.
The utility model is realized by the following steps: the buffer assembly comprises a first fixing plate, a second fixing plate, a connecting glue and an elastic plate, wherein the first fixing plate is fixedly connected to the top of the elastic plate through the connecting glue, and the second fixing plate is fixedly connected to the bottom of the elastic plate through the connecting glue.
Through setting up the buffering subassembly, first fixed plate and second fixed plate are connected with the elastic plate through connecting gluey to installation that can be stable is in the junction of damping structure and first even roof beam and second even roof beam.
The utility model is realized by the following steps: the elastic plate is L-shaped and is attached to the damper body.
Through setting up L shape elastic plate for the supporting component can carry out better installation.
The utility model is realized by the following steps: the first dismounting assembly comprises a bolt groove, a first round hole is formed in the inner side of the bolt groove, a first thread groove is formed in the surface of the damper body, a positioning bolt is arranged on the inner side of the bolt groove, and the positioning bolt penetrates through the first round hole and is in threaded connection with the first thread groove.
Through setting up first dismouting subassembly, can dismantle and install positioning bolt from the inboard of first thread groove to be convenient for carry out quick dismouting to buffering subassembly.
The utility model is realized by the following steps: the right side of a first connecting beam in the damper body is provided with a first thread groove, the left side of a second connecting beam in the damper body is provided with a first thread groove, and the top and the bottom of the damping structure are both provided with first thread grooves.
Through setting up first thread groove, first thread groove sets up on the right side of first even roof beam, the left side of second even roof beam and the top and the bottom of damping structure, is convenient for install positioning bolt.
The utility model is realized by the following steps: the surface of first fixed plate is provided with a set of first dismouting subassembly, the surface of second fixed plate is provided with a set of first dismouting subassembly.
Through setting up a set of dismouting subassembly, can make first fixed plate and second fixed plate installation more stable.
The utility model is realized by the following steps: the supporting component comprises a first mounting plate and a second mounting plate, a supporting column is fixedly connected between the first mounting plate and the second mounting plate, the first mounting plate is fixedly connected to the surface of the first fixing plate through a second dismounting component, and the second mounting plate is fixedly connected to the surface of the second fixing plate through a second dismounting component.
Through setting up supporting component, first mounting panel and second mounting panel mutually perpendicular to fixed connection support column between first mounting panel and the second mounting panel, make support column and first mounting panel and second mounting panel form triangle-shaped stable structure, thereby play better supporting effect.
The utility model is realized by the following steps: the second disassembling and assembling component comprises a second round hole, a second thread groove is formed in the bottom of the second round hole, a positioning screw is arranged on the inner side of the second round hole, and the bottom of the positioning screw is in threaded connection with the inner side of the second thread groove.
Through setting up second dismouting subassembly, can carry out the dismouting with the quick inboard from second thread groove of set screw to be convenient for carry out quick dismouting to supporting component.
The utility model is realized by the following steps: the surface of first mounting panel is provided with two sets of second dismouting subassemblies, the surface of second mounting panel is provided with two sets of second dismouting subassemblies.
Through setting up two sets of dismouting subassemblies for the surface at buffering subassembly can be more stable to the supporting component.
The utility model is realized by the following steps: the surface of attenuator body is provided with four buffering subassemblies, the junction of first even roof beam and damping structure is provided with two buffering subassemblies, the junction of second even roof beam and damping structure is provided with two buffering subassemblies.
Through setting up four buffering subassemblies, four buffering subassemblies are all connected with the attenuator body through first dismouting subassembly to the supporting component is all installed through second dismouting subassembly in four buffering subassemblies's surface, thereby can play better supporting effect to the attenuator body.
The utility model has the beneficial effects that: when the coupled beam damper is used, the first coupled beam and the second coupled beam are respectively arranged on the inner side of concrete, then the buffer assembly is arranged at the joint of the first coupled beam and the damping structure and the joint of the second coupled beam and the damping structure, and then the first disassembly and assembly is used for connecting, so that the buffer assembly can be stably arranged at the corner joint of the inner side of the damper body, the support assembly is arranged on the surface of the buffer assembly, the support column in the support assembly is arranged through the first mounting plate and the second mounting plate, the support assembly is arranged on the outer side of the buffer assembly through the second disassembly and assembly, a good support effect can be achieved on the buffer assembly, and the possibility of safety problems can be greatly reduced; and because first dismouting subassembly and second dismouting subassembly all can dismantle to can be quick install and dismantle supporting component and buffering subassembly, the structure of first dismouting subassembly and second dismouting subassembly is comparatively stable moreover.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a perspective view of a coupling beam damper according to an embodiment of the present invention;
FIG. 2 is a front view of a coupling beam damper according to an embodiment of the present invention;
FIG. 3 is a side view of a bumper assembly of an attachment beam damper according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion A of the damper for a coupling beam according to an embodiment of the present invention;
fig. 5 is an enlarged view of a portion B of the coupling beam damper according to the embodiment of the present invention.
Icon: 1. a damper body; 11. a first coupling beam; 12. a damping structure; 13. a second coupling beam; 2. A buffer assembly; 21. a first fixing plate; 22. connecting glue; 23. an elastic plate; 24. a second fixing plate; 3. a support assembly; 31. a first mounting plate; 32. a second mounting plate; 33. a support pillar; 4. a first disassembly and assembly component; 41. a bolt slot; 42. a first circular hole; 43. a first thread groove; 44. positioning the bolt; 5. a second disassembly and assembly component; 51. a second circular hole; 52. a second thread groove; 53. and (5) positioning screws.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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," "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; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Example 1:
the coupled beam damper provided by the embodiment comprises a damper body 1, wherein the damper body 1 comprises a first coupled beam 11, a second coupled beam 13 and a damping structure 12, the first coupled beam 11 is connected with the second coupled beam 13 through the damping structure 12, a buffer assembly 2 is arranged at the joint of the first coupled beam 11 and the damping structure 12, the buffer assembly 2 is also arranged at the joint of the second coupled beam 13 and the damping structure 12, a support assembly 3 is arranged at the outer side of the buffer assembly 2, a first dismounting assembly 4 is arranged on the surface of the buffer assembly 2, a second dismounting assembly 5 is arranged on the surface of the support assembly 3, the first coupled beam 11 and the second coupled beam 13 are respectively arranged at the inner side of concrete, the buffer assembly 2 is then arranged at the joint of the first coupled beam 11 and the damping structure 12 and the joint of the second coupled beam 13 and the damping structure 12, and then the first dismounting assembly 4 is connected, so that the buffer assembly 2 can be stably installed at the corner connection part of the inner side of the damper body 1; and place supporting component 3 on the surface of buffer unit 2, supporting column 33 among the supporting component 3 installs through first mounting panel 31 and second mounting panel 32, and supporting component 3 installs in buffer unit 2's outside through second dismouting subassembly 5, can play better supporting effect to buffer unit 2 to can greatly reduced the possibility of the safety problem that appears.
And because first dismouting subassembly 4 and second dismouting subassembly 5 all can be dismantled to can be quick install and dismantle supporting component 3 and buffer unit 2, first dismouting subassembly 4 and second dismouting subassembly 5's structure is comparatively stable moreover.
Example 2:
The first dismounting and mounting assembly 4 comprises a bolt groove 41, a first round hole 42 is opened on the inner side of the bolt groove 41, a first thread groove 43 is opened on the surface of the damper body 1, a positioning bolt 44 is arranged on the inner side of the bolt groove 41, the positioning bolt 44 passes through the first round hole 42 to be in threaded connection with the first thread groove 43, a first thread groove 43 is opened on the right side of the first connecting beam 11 in the damper body 1, a first thread groove 43 is opened on the left side of the second connecting beam 13 in the damper body 1, the top and the bottom of the damping structure 12 are both opened with the first thread groove 43, a set of first dismounting and mounting assemblies 4 is arranged on the surface of the first fixing plate 21, a set of first dismounting and mounting assemblies 4 is arranged on the surface of the second fixing plate 24, and the positioning bolt 44 can be dismounted and mounted from the inner side of the first thread groove 43 by arranging the first dismounting and mounting assemblies 4, thereby be convenient for carry out quick dismouting to buffer unit 2, through setting up first thread groove 43, first thread groove 43 sets up the top and the bottom at the right side of first tie-beam 11, the left side of second tie-beam 13 and damping structure 12, be convenient for install positioning bolt 44, through setting up a set of dismouting subassembly, can make first fixed plate 21 and second fixed plate 24 installation more stable.
Example 3:
the supporting component 3 comprises a first mounting plate 31 and a second mounting plate 32, a supporting column 33 is fixedly connected between the first mounting plate 31 and the second mounting plate 32, the first mounting plate 31 and the second mounting plate 32 are perpendicular to each other through the supporting component 3, and the supporting column 33 is fixedly connected between the first mounting plate 31 and the second mounting plate 32, so that the supporting column 33, the first mounting plate 31 and the second mounting plate 32 form a triangular stable structure, and a better supporting effect is achieved.
The first mounting plate 31 is fixedly connected to the surface of the first fixing plate 21 through the second dismounting component 5, the second mounting plate 32 is fixedly connected to the surface of the second fixing plate 24 through the second dismounting component 5, the second dismounting component 5 comprises a second round hole 51, a second thread groove 52 is formed in the bottom of the second round hole 51, a positioning screw 53 is arranged on the inner side of the second round hole 51, the bottom of the positioning screw 53 is in threaded connection with the inner side of the second thread groove 52, two groups of second dismounting components 5 are arranged on the surface of the first mounting plate 31, two groups of second dismounting components 5 are arranged on the surface of the second mounting plate 32, four buffer components 2 are arranged on the surface of the damper body 1, two buffer components 2 are arranged at the joint of the first connecting beam 11 and the damping structure 12, two buffer components 2 are arranged at the joint of the second connecting beam 13 and the damping structure 12, through setting up second dismouting subassembly 5, can carry out the dismouting with the quick inboard from second thread groove 52 of set screw 53, thereby be convenient for carry out quick dismouting to supporting component 3, through setting up two sets of dismouting subassemblies, make supporting component 3 can be more stable install on the surface of buffering subassembly 2, through setting up four buffering subassemblies 2, four buffering subassemblies 2 all are connected with attenuator body 1 through first dismouting subassembly 4, and supporting component 3 is all installed through second dismouting subassembly 5 on the surface of four buffering subassemblies 2, thereby can play better supporting effect to attenuator body 1.
The present embodiment provides a link beam damper, as shown in fig. 1-5, which is able to be stably installed at the connection position of a damping structure 12 and a first link beam 11 and a second link beam 13 by providing a buffer assembly 2, and connecting a first fixing plate 21 and a second fixing plate 24 with an elastic plate 23 through a connection glue 22, so that a support assembly 3 can be better installed by providing an L-shaped elastic plate 23, and detaching and installing a positioning bolt 44 from the inner side of a first thread groove 43 by providing a first detaching and installing assembly 4, so as to facilitate rapid detaching and installing of the buffer assembly 2, and by providing a first thread groove 43, the first thread groove 43 is provided at the right side of the first link beam 11, the left side of the second link beam 13, and the top and bottom of the damping structure 12, so as to facilitate installing the positioning bolt 44, and by providing a set of detaching and installing assemblies, the first fixing plate 21 and the second fixing plate 24 can be installed more stably, the first mounting plate 31 and the second mounting plate 32 are perpendicular to each other by arranging the supporting component 3, and the supporting column 33 is fixedly connected between the first mounting plate 31 and the second mounting plate 32, so that the supporting column 33 and the first mounting plate 31 and the second mounting plate 32 form a triangular stable structure, thereby playing a better supporting effect, the positioning screw 53 can be quickly disassembled and assembled from the inner side of the second thread groove 52 by arranging the second disassembling and assembling component 5, thereby facilitating the quick disassembling and assembling of the supporting component 3, the supporting component 3 can be more stably installed on the surface of the buffer component 2 by arranging the two groups of second disassembling and assembling components 5, the four buffer components 2 are all connected with the damper body 1 through the first disassembling and assembling component 4 by arranging the four buffer components 2, and the surface of four buffer unit 2 all installs supporting component 3 through second dismouting subassembly 5 to can play better supporting effect to attenuator body 1.
The working principle is as follows: when the damper is used, the first connecting beam 11 and the second connecting beam 13 are respectively arranged on the inner side of concrete, then the buffer assembly 2 is arranged at the joint of the first connecting beam 11 and the damping structure 12 and the joint of the second connecting beam 13 and the damping structure 12, and then the buffer assembly 2 is connected through the first dismounting assembly 4, so that the buffer assembly 2 can be stably arranged at the corner joint of the inner side of the damper body 1, the supporting assembly 3 is arranged on the surface of the buffer assembly 2, the supporting column 33 in the supporting assembly 3 is arranged through the first mounting plate 31 and the second mounting plate 32, the supporting assembly 3 is arranged on the outer side of the buffer assembly 2 through the second dismounting assembly 5, a good supporting effect can be achieved on the buffer assembly 2, and the possibility of safety problems can be greatly reduced; and because first dismouting subassembly 4 and second dismouting subassembly 5 all can be dismantled to can be quick install and dismantle supporting component 3 and buffer unit 2, first dismouting subassembly 4 and second dismouting subassembly 5's structure is comparatively stable moreover.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a link roof beam attenuator, its characterized in that, includes attenuator body (1), attenuator body (1) is including first even roof beam (11), second even roof beam (13) and damping structure (12), first even roof beam (11) are connected with second even roof beam (13) through damping structure (12), first even roof beam (11) are provided with buffering subassembly (2) with the junction of damping structure (12), the second is even roof beam (13) also is provided with buffering subassembly (2) with the junction of damping structure (12), the outside of buffering subassembly (2) is provided with supporting component (3), and the surface of buffering subassembly (2) is provided with first dismouting subassembly (4), the surface of supporting component (3) is provided with second dismouting subassembly (5).
2. The connecting beam damper as claimed in claim 1, wherein the buffer assembly (2) comprises a first fixing plate (21), a second fixing plate (24), a connecting glue (22) and an elastic plate (23), the first fixing plate (21) is fixedly connected to the top of the elastic plate (23) through the connecting glue (22), and the second fixing plate (24) is fixedly connected to the bottom of the elastic plate (23) through the connecting glue (22).
3. The connecting beam damper as claimed in claim 2, wherein the elastic plate (23) is L-shaped, and the elastic plate (23) is attached to the damper body (1).
4. The connecting beam damper as claimed in claim 1, wherein the first dismounting and mounting assembly (4) comprises a bolt groove (41), a first round hole (42) is formed in the inner side of the bolt groove (41), a first thread groove (43) is formed in the surface of the damper body (1), a positioning bolt (44) is arranged on the inner side of the bolt groove (41), and the positioning bolt (44) penetrates through the first round hole (42) to be in threaded connection with the first thread groove (43).
5. The connecting beam damper as claimed in claim 4, wherein a first thread groove (43) is formed on the right side of a first connecting beam (11) in the damper body (1), a first thread groove (43) is formed on the left side of a second connecting beam (13) in the damper body (1), and a first thread groove (43) is formed on both the top and the bottom of the damping structure (12).
6. A coupling beam damper according to claim 2, characterized in that the surface of the first fixing plate (21) is provided with a set of first disassembling components (4), and the surface of the second fixing plate (24) is provided with a set of first disassembling components (4).
7. The connecting beam damper as claimed in claim 2, wherein the support assembly (3) comprises a first mounting plate (31) and a second mounting plate (32), a support column (33) is fixedly connected between the first mounting plate (31) and the second mounting plate (32), the first mounting plate (31) is fixedly connected to the surface of the first fixing plate (21) through the second dismounting assembly (5), and the second mounting plate (32) is fixedly connected to the surface of the second fixing plate (24) through the second dismounting assembly (5).
8. The connecting beam damper as claimed in claim 1, wherein the second dismounting and mounting assembly (5) comprises a second round hole (51), a second thread groove (52) is formed at the bottom of the second round hole (51), a positioning screw (53) is arranged on the inner side of the second round hole (51), and the bottom of the positioning screw (53) is in threaded connection with the inner side of the second thread groove (52).
9. A beam connecting damper according to claim 7, characterized in that the surface of the first mounting plate (31) is provided with two sets of second dismounting components (5), and the surface of the second mounting plate (32) is provided with two sets of second dismounting components (5).
10. The connecting beam damper as claimed in claim 1, wherein the surface of the damper body (1) is provided with four buffering assemblies (2), the joint of the first connecting beam (11) and the damping structure (12) is provided with two buffering assemblies (2), and the joint of the second connecting beam (13) and the damping structure (12) is provided with two buffering assemblies (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122141877.0U CN215888689U (en) | 2021-09-07 | 2021-09-07 | Coupling beam damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122141877.0U CN215888689U (en) | 2021-09-07 | 2021-09-07 | Coupling beam damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215888689U true CN215888689U (en) | 2022-02-22 |
Family
ID=80341194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122141877.0U Active CN215888689U (en) | 2021-09-07 | 2021-09-07 | Coupling beam damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215888689U (en) |
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2021
- 2021-09-07 CN CN202122141877.0U patent/CN215888689U/en active Active
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