CN217379268U - Vestibule supporting device, vestibule and building - Google Patents
Vestibule supporting device, vestibule and building Download PDFInfo
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- CN217379268U CN217379268U CN202221045785.0U CN202221045785U CN217379268U CN 217379268 U CN217379268 U CN 217379268U CN 202221045785 U CN202221045785 U CN 202221045785U CN 217379268 U CN217379268 U CN 217379268U
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Abstract
The utility model discloses a vestibule strutting arrangement, vestibule and building. The corridor supporting device comprises an anchor plate, a connecting piece and a supporting frame; the anchor plate is used for being attached to the side surface of a base body of a building and is provided with a fixing hole; the connecting piece is used for penetrating through the fixing hole and extending into the base body of the building so as to fix the anchor plate to the building; the support frame is located the side of the base member of building, and the support frame includes the web and is located the barrier portion of web upper surface, and the one end of web is connected to the anchor slab, and the barrier portion is spaced apart from the anchor slab, and the part that is located between anchor slab and the barrier portion of web is used for supporting the vestibule. Therefore, the bracket used for supporting the corridor is not required to be poured newly for the construction which is finished, the construction is simple, and the manufacturing cost is low.
Description
Technical Field
The utility model relates to a building field particularly relates to vestibule strutting arrangement, vestibule and building.
Background
A corridor can connect two adjacent buildings in the air to act as a passage between the two adjacent buildings. And the self weight of the corridor is larger. For this reason, adjacent buildings need to be provided with corbels for supporting the corridor to withstand the weight of the corridor and the weight of vehicles passing in the corridor.
For the building which is already built, if the corridor needs to be additionally arranged, the bracket for supporting the corridor needs to be newly added. And the position of bracket is than higher, like this, the construction of pouring the bracket is inconvenient, and the cost is high. In addition, the newly-added bracket is poured in the existing upright post of the building, the pouring process is complex, and the construction is inconvenient.
SUMMERY OF THE UTILITY MODEL
A series of concepts in a simplified form are introduced in the summary section, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
For at least partly solving above-mentioned technical problem, the utility model provides a vestibule strutting arrangement, vestibule strutting arrangement are used for connecting vestibule and building, and vestibule strutting arrangement includes:
the anchor plate is used for being attached to the side surface of a base body of a building and is provided with a fixing hole;
the connecting piece is used for penetrating through the fixing hole and extending into the base body of the building so as to fix the anchor plate to the building;
the support frame, the support frame is located the side of the base member of building, and the support frame includes the web and is located the barrier portion of web upper surface, and the one end of web is connected to the anchor slab, and the barrier portion is spaced apart with the anchor slab, and the part that is located between anchor slab and the barrier portion of web is used for supporting the vestibule.
According to the utility model discloses a vestibule strutting arrangement, for the building that has accomplished the construction, set up the stand hole at the base member of building, make the connecting piece stretch into in the stand hole after passing the anchor slab, can accomplish the installation of vestibule strutting arrangement, thus can connect the vestibule, the installation of vestibule strutting arrangement is convenient, need not to pour the bracket that is used for supporting the vestibule newly, the construction is simple, the cost is low; furthermore, for buildings where the post casting has not been completed, the connectors may be pre-embedded in the base of the building so that the anchor plates are connected to the base of the building, thereby connecting the gallery support means to the building for connection to the gallery; under the condition that unusual circumstances such as earthquake appear, if the connection between vestibule girder and the web is damaged, the stop part can stop that the vestibule girder removes along the length direction of support frame and deviates from the support frame. The blocking portion may also increase the strength of the support frame.
Optionally, the support frame further comprises a riser connected to the web, at least a portion of the riser being located above the web in a height direction of the support frame.
Optionally, the corridor supporting device comprises two vertical plates, the two vertical plates are arranged at intervals along the width direction of the supporting frame, and the part of the web plate, which is located between the two vertical plates, is used for supporting the corridor; or
Along the height direction of the support frame, the lower ends of the vertical plates are constructed into a triangular structure.
Optionally, the web has a mounting hole and the vestibule support further comprises a fastener for passing through the vestibule and the mounting hole to connect the vestibule and the web.
Optionally, the support bracket further comprises a stiffening rib located below the web and connected to the web and the anchor plate.
Optionally, the connector is a rebar or chemical anchor.
The utility model also provides a vestibule, vestibule include aforementioned vestibule strutting arrangement, girder and connecting seat, and the connecting seat is connected to the girder, and the connecting seat overlap joint is connected to the web.
According to the utility model discloses a vestibule, vestibule include aforementioned vestibule strutting arrangement, to the building that has accomplished the construction, set up the stand hole at the base member of building, make the connecting piece stretch into in the stand hole after passing the anchor slab, can accomplish the installation of vestibule strutting arrangement to can connect the vestibule, the simple to operate of vestibule strutting arrangement need not to pour the bracket that is used for supporting the vestibule newly, the construction is simple, the cost is low; furthermore, for buildings where the post casting has not been completed, the connectors may be pre-embedded in the base of the building so that the anchor plates are connected to the base of the building, thereby connecting the gallery support means to the building for connection to the gallery; under the condition that unusual circumstances such as earthquake appear, if the connection between vestibule girder and the web is damaged, the stop part can stop that the vestibule girder removes along the length direction of support frame and deviates from the support frame. The blocking portion may also increase the strength of the support frame.
Optionally, the vestibule includes a first connecting plate, the connecting sockets include a second connecting plate, the first connecting plate is connected to an end of the main beam, the second connecting plate is connected to a lower end of the first connecting plate, the second connecting plate is for overlapping to the web and connecting to the web by a fastener.
Optionally, the first connecting plate is arranged along the length direction of the support frame and is used for being spaced from the base body of the building.
The utility model also provides a building, the building includes aforementioned vestibule strutting arrangement.
According to the utility model discloses a building, building include aforementioned vestibule strutting arrangement, the vestibule includes aforementioned vestibule strutting arrangement, to the building that has accomplished the construction, set up the stand hole at the base member of building, make the connecting piece stretch into in the stand hole after passing the anchor slab, can accomplish the installation of vestibule strutting arrangement to can connect the vestibule, the simple to operate of vestibule strutting arrangement need not to pour the bracket that is used for supporting the vestibule newly, the construction is simple, the cost is low; furthermore, for buildings where the post casting has not been completed, the connectors may be pre-embedded in the base of the building so that the anchor plates are connected to the base of the building, thereby connecting the gallery support means to the building for connection to the gallery; under the condition that unusual circumstances such as earthquake appear, if the connection between vestibule girder and the web is damaged, the stop part can stop that the vestibule girder removes along the length direction of support frame and deviates from the support frame. The blocking portion can also increase the strength of the support frame.
Drawings
In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings.
Fig. 1 is a partial schematic view of a building according to a preferred embodiment of the present invention at a vestibule support, wherein connectors are pre-embedded in the columns;
figure 2 is a side view of the vestibule support apparatus of figure 1 connecting the main girders and the uprights of the vestibule;
fig. 3 is a top view of the vestibule support apparatus of fig. 1 connecting the main beams and the posts of the vestibule;
figure 4 is a side view of the vestibule support of figure 1;
figure 5 is a front view of the vestibule support of figure 4;
figure 6 is a top view of the vestibule support of figure 4;
FIG. 7 is a fragmentary schematic view of the building of FIG. 1 at another vestibule support device with connecting members disposed through the post holes of the posts;
FIG. 8 is a front view of the linking support device of FIG. 7;
figure 9 is a schematic view of the vestibule support apparatus connecting the vestibule and the posts.
Description of the reference numerals
110. Vestibule 111, vestibule girder
112. First connecting plate 113 and second connecting plate
120. Support frame 121 and connecting part
122. Web 123, riser
124. Stop 125, reinforcing rib
130. Column 140, fastener
150. Anchor plate 151, fixing hole
160. Connecting piece
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the terms "upper", "lower", and the like are used herein for purposes of illustration only and are not to be construed as limiting.
Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, e.g., a particular order, etc.
In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.
The utility model provides a vestibule strutting arrangement. Referring to fig. 1 to 9, the corridor supporting device may be installed in a building (e.g., a tower). In this way, the building may be connected to the vestibule 110 by the vestibule support device such that the vestibule 110 connects two buildings to enable passage between the two buildings via the vestibule 110. The building has a base (e.g., a column 130 of concrete).
Referring to fig. 1 to 9, the vestibule support device includes a support frame 120 (a bracket), an anchor plate 150 and a connecting member 160. The anchor plate 150 is a steel plate. The anchor plate 150 is adapted to be attached to a side surface of the column 130 of the building. The anchor plate 150 has a fixing hole 151. The connecting member 160 is adapted to be inserted through the fixing hole 151 and extend into the column 130 of the building to fix the anchor plate 150 to the building. Each anchor plate 150 is connected to the column 130 by a plurality of connecting members 160.
In this embodiment, one of the two buildings connecting the vestibule has been constructed and the other has not yet been cast with the columns 130.
As shown in fig. 1 to 3, for a building in which the casting of the columns 130 has not been completed, the connecting members 160 are reinforcing bars. The reinforcing bars are inserted into the fixing holes 151 of the anchor plate 150 and are welded to the anchor plate 150. At this moment, when pouring the pillar 130, the reinforcing steel bar may be first disposed in the mold body for pouring the pillar 130, and the pillar 130 is poured around the reinforcing steel bar, so that the reinforcing steel bar is embedded in the pillar 130, and the anchor plate 150 is located outside the pillar 130.
Preferably, the ends of the rebar within the column 130 are configured as a structural structure. This can further increase the strength of connection between the reinforcing bars and the column 130.
As shown in fig. 7 and 8, for a construction that has been completed, the connecting member 160 is a chemical anchor. In this case, a post hole may be formed in the post 130, and then a chemical anchor may be inserted and fixed into the post hole. The portion of the chemical anchor is located outside of the post 130. The portion of the chemical anchor bolt located outside the pillar 130 is inserted through the fixing hole 151 of the anchor plate 150, and connects the anchor plate 150 and the pillar 130. The chemical anchor is a high-strength anchor mainly made of vinyl resin, and is referred to as a chemical suppository in the early days. The chemical anchor bolt is a composite part which realizes the anchoring of the fixed part by cementing and fixing the screw rod in the drill hole of the concrete base material through a special chemical adhesive.
Referring back to fig. 1 to 9, the supporting frame 120 is made of steel. Therefore, the supporting frame 120 has a small volume, a small weight and a high strength compared with the bracket formed by casting. The overall shape of the support frame 120 is light and beautiful. The support frame 120 has a short manufacturing period and low manufacturing cost.
The support frame 120 has a connection part 121 at one end thereof in a length direction (left-right direction in fig. 1) of the support frame 120. The connection portion 121 is connected (e.g., welded) to a side surface of the anchor plate 150 such that the support bracket 120 is located at a side of the anchor plate 150. Thus, the support frame 120 is connected to the column 130 through the anchor plate 150 and the connecting member 160, the support frame 120 is easy to install, and the installation period is short. In addition, support frame 120 is easy to maintain and change, and the later maintenance of vestibule support device is convenient.
The support bracket 120 includes a web 122. One end of the web 122 constitutes a part of the connecting portion 121 along the length of the support bracket 120. The anchor plate 150 lies in a plane perpendicular to the plane of the web 122.
In the case where the anchor plate 150 is connected to the pillar 130, the web 122 is horizontally disposed such that the plane in which the web 122 is located is parallel to the horizontal direction. The vestibule 110 has vestibule girders 111. The ends of the gallery main beams 111 may be lapped by the upper surface of the web 122 above the web 122. In this way, the upright 130 supports the support bracket 120. The support bracket 120 supports the vestibule 110.
A portion of the upper surface of the web 122 extends and projects upwardly to form a stop 124. A space exists between the blocking portion 124 and the connecting portion 121 along the length direction of the support bracket 120.
The gallery girders 111 overlap to the portion of the web 122 between the connecting portion 121 and the blocking portion 124 and are connected to the web 122. In this way, in the event of an abnormal situation such as an earthquake that could cause the building to tilt, the blocking portion 124 can block the corridor main beam 111 from moving out of the support frame 120 in the lengthwise direction of the support frame 120 if the connection between the corridor main beam 111 and the web 122 is damaged. The stops 124 may also increase the strength of the support bracket 120.
In the embodiment, for the constructed building, the base body of the building is provided with the upright post hole, so that the connecting piece 160 penetrates through the anchor plate 150 and then extends into the upright post hole, and then the installation of the corridor supporting device can be completed, so that the corridor 110 can be connected, the corridor supporting device is convenient to install, a bracket for supporting the corridor 110 does not need to be poured newly, the construction is simple, and the construction cost is low; in addition, for a building in which the pillar 130 has not been cast, the connecting member 160 may be pre-embedded in the base of the building so that the anchor plate 150 is connected to the base of the building, thereby connecting the gallery supporting device to the building for connecting the gallery 110; in case of an abnormal situation such as an earthquake, if the connection between the corridor main beam 111 and the web 122 is damaged, the blocking part 124 can block the corridor main beam 111 from moving out of the support frame 120 along the length direction of the support frame 120. The stops 124 may also increase the strength of the support bracket 120.
As shown in fig. 4-6, the support bracket 120 includes risers 123. The risers 123 are connected to the webs 122. The planes of the risers 123 are perpendicular to the plane of the web 122. The anchor plate 150 lies in a plane perpendicular to the plane of the riser 123. At least a portion of the riser 123 is located above the web 122 in a height direction of the support bracket 120 (in a case where the support bracket 120 is connected to the column 130, the height direction of the support bracket 120 is parallel to the vertical direction). One end of the riser 123 forms part of the connecting portion 121 along the length of the support bracket 120. Thereby, the riser 123 can further increase the strength of the support frame 120.
Preferably, the vestibule support includes two risers 123. The two risers 123 are spaced apart from each other in the width direction (the left-right direction in fig. 2) of the support frame 120. Thus, the two risers 123 can further increase the strength of the support frame 120.
As shown in fig. 2, the ends of the gallery girders 111 are lapped to the portions of the webs 122 between the two risers 123. Thus, along the width direction of the support frame 120, the two risers 123 respectively block the corridor main beam 111 from both sides of the corridor main beam 111, so as to prevent the corridor main beam 111 from coming off the support frame 120.
The risers 123 are connected to ends of the webs 122 in the width direction of the support frame 120. Thus, the support frame 120 has a simple structure.
Further preferably, the webs 122 and risers 123 form a structure having an H-shaped cross-section (the cross-section being perpendicular to the length of the support frame 120). Therefore, the support frame 120 can be made of I-shaped steel, and the support frame 120 can be conveniently machined.
The support bracket 120 also includes strengthening ribs 125. The reinforcing rib 125 is located below the web 122 and is connected to the web 122. The reinforcement ribs 125 are also connected to the anchor plate 150. This can further increase the strength of the support frame 120.
Further preferably, the reinforcing ribs 125 are at least two. At least two reinforcing ribs 125 are provided at intervals in the width direction of the support bracket 120. This can further increase the strength of the support frame 120.
Preferably, the lower ends of the risers 123 are configured as a triangular structure. This can further reduce the weight of the riser 123. Further, the triangular structure can increase the strength of the riser 123.
Referring to fig. 3, the web 122 has a mounting hole. The vestibule support also includes fasteners 140 (e.g., bolts). Fasteners 140 are used to pass through the vestibule 110 and mounting holes to connect the vestibule 110 and the web 122. In this way, the connection between the vestibule 110 and the web 122 is a weak connection, and the fastener 140 can break when an abnormal situation such as an earthquake occurs, thereby allowing the vestibule 110 to move relative to the support bracket 120. Under normal conditions (non-abnormal conditions for normal traffic or pedestrians), the fasteners 140 do not break to secure the vestibule 110 to the support bracket 120.
The support brackets 120 connecting the gallery 110 and the columns 130 may be painted as desired to make the building connecting the gallery 110 via the support brackets 120 more aesthetically pleasing.
The utility model also provides a vestibule 110, vestibule 110 includes aforementioned vestibule strutting arrangement, vestibule girder 111 and connecting seat. The connection sockets are connected to the gallery main beam 111. The attachment sockets overlap and are connected to the web 122.
In the embodiment, the corridor 110 comprises the corridor supporting device, and for the building which is constructed, a base body of the building is provided with a stand column hole, so that the connecting piece 160 penetrates through the anchor plate 150 and then extends into the stand column hole, and then the installation of the corridor supporting device can be completed, so that the corridor 110 can be connected, the corridor supporting device is convenient to install, a bracket for supporting the corridor 110 does not need to be poured newly, the construction is simple, and the construction cost is low; in addition, for a building in which the pillar 130 has not been cast, the connecting member 160 may be pre-embedded in the base of the building so that the anchor plate 150 is connected to the base of the building, thereby connecting the gallery supporting device to the building for connecting the gallery 110; in case of an abnormal situation such as an earthquake, if the connection between the corridor main beam 111 and the web 122 is damaged, the blocking part 124 can block the corridor main beam 111 from moving out of the support frame 120 along the length direction of the support frame 120. The stops 124 may also increase the strength of the support bracket 120.
As shown in fig. 1-3, and 7, the vestibule 110 includes a first connection plate 112. The connection holder includes a second connection plate 113. A first connection plate 112 is connected to the end of the gallery main beam 111. The first connecting plate 112 lies in a plane parallel to the plane of the anchor plate 150. The second connection plate 113 lies in a plane perpendicular to the plane of the first connection plate 112. The second connection plate 113 is connected to the lower end of the first connection plate 112. The second connecting plate 113 lies in a plane parallel to the plane of the web 122. The second connecting plate 113 is adapted to be attached to the upper surface of the web 122 and is connected to the web 122 by a fastener 140. Thus, the vestibule 110 is simple in structure.
Preferably, the second connection plate 113 may be welded to the first connection plate 112. Therefore, the corridor 110 has a simple structure and is convenient to process.
Preferably, there is a space between the second connecting plate 113 and the riser 123 along the width direction of the support bracket 120. There is a space between the second connecting plate 113 and the anchor plate 150, and between the second connecting plate 113 and the blocking portion 124 along the length of the support bracket 120. Along the length of the support frame 120, there is a space between the first connector plate 112 and the anchor plate 150. In this way, in an abnormal situation such as an earthquake, after the fastener 140 is broken, the corridor 110 can move relative to the support frame 120 along the length direction and the width direction of the support frame 120, so as to avoid the breakage of the corridor 110.
Further, the first connecting plate 112 and the anchor plate 150 are spaced apart from each other, so that the possibility that the upright posts 130 of the building press against the gallery main beam 111 can be reduced.
In an embodiment not shown, the second connecting plate may also be pivotally connected to the first connecting plate. At this time, the axis of the pivot shaft of the second connecting plate is parallel to the width direction of the support frame. Therefore, under the abnormal conditions such as earthquake and the like, the corridor main beam can move relative to the web more conveniently.
The utility model also provides a building. The building comprises the aforementioned vestibule support arrangement.
In the embodiment, the building comprises the corridor supporting device, for the building which is constructed, the base body of the building is provided with the upright post hole, and the connecting piece 160 penetrates through the anchor plate 150 and then extends into the upright post hole, so that the installation of the corridor supporting device can be completed, the corridor 110 can be connected, the installation of the corridor supporting device is convenient, a bracket for supporting the corridor 110 does not need to be poured newly, the construction is simple, and the construction cost is low; in addition, for a building in which the pillar 130 has not been cast, the connecting member 160 may be pre-embedded in the base of the building so that the anchor plate 150 is connected to the base of the building, thereby connecting the gallery supporting device to the building for connecting the gallery 110; in case of an abnormal situation such as an earthquake, if the connection between the corridor main beam 111 and the web 122 is damaged, the blocking part 124 can block the corridor main beam 111 from moving out of the support frame 120 along the length direction of the support frame 120. The stops 124 may also increase the strength of the support bracket 120.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
Claims (10)
1. A vestibule support arrangement, the vestibule support arrangement is used for connecting vestibules and buildings, its characterized in that, the vestibule support arrangement includes:
an anchor plate for being attached to a side surface of a base of the building, the anchor plate having a fixing hole;
the connecting piece is used for penetrating through the fixing hole and extending into the base body of the building so as to fix the anchor plate to the building;
the support frame, the support frame is located the building the side of base member, the support frame includes the web and is located the barrier portion of web upper surface, the one end of web is connected to the anchor slab, the barrier portion with the anchor slab is spaced apart, being located of web the anchor slab with part between the barrier portion is used for supporting the vestibule.
2. The vestibule support device of claim 1, wherein the support bracket further includes risers connected to the web, at least portions of the risers being located above the web in a height direction of the support bracket.
3. Vestibule support apparatus as claimed in claim 2,
the corridor supporting device comprises two vertical plates which are arranged at intervals along the width direction of the supporting frame, and the part of the web plate, which is positioned between the two vertical plates, is used for supporting the corridor; or
Along the direction of height of support frame, the lower extreme of riser constructs for the triangle-shaped structure.
4. Vestibule support apparatus as claimed in claim 1,
the web has a mounting hole, the vestibule support device further includes a fastener for passing through the vestibule and the mounting hole to connect the vestibule with the web.
5. Vestibule support apparatus as claimed in claim 1,
the support bracket further includes a reinforcing rib located below the web and connected to the web and the anchor plate.
6. The porch support device of claim 1, wherein the connectors are rebar or chemical anchors.
7. A vestibule comprising the vestibule support of any of claims 1-6, a main beam, and attachment sockets connected to the main beam, the attachment sockets overlapping and connected to the web.
8. The vestibule of claim 7,
the vestibule includes first connecting plate, the connecting seat includes the second connecting plate, first connecting plate is connected to the tip of girder, the second connecting plate is connected to the lower extreme of first connecting plate, the second connecting plate be used for the overlap joint to the web, and be connected to through the fastener the web.
9. The vestibule of claim 8, wherein the first connector plate is adapted to be spaced from a base of a building along the length of the support frame.
10. A building characterised in that it includes a vestibule support arrangement as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221045785.0U CN217379268U (en) | 2022-04-29 | 2022-04-29 | Vestibule supporting device, vestibule and building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221045785.0U CN217379268U (en) | 2022-04-29 | 2022-04-29 | Vestibule supporting device, vestibule and building |
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| Publication Number | Publication Date |
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| CN217379268U true CN217379268U (en) | 2022-09-06 |
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| CN202221045785.0U Active CN217379268U (en) | 2022-04-29 | 2022-04-29 | Vestibule supporting device, vestibule and building |
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| CN (1) | CN217379268U (en) |
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- 2022-04-29 CN CN202221045785.0U patent/CN217379268U/en active Active
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