CN219530385U - Support and projection equipment - Google Patents
Support and projection equipment Download PDFInfo
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- CN219530385U CN219530385U CN202320527298.6U CN202320527298U CN219530385U CN 219530385 U CN219530385 U CN 219530385U CN 202320527298 U CN202320527298 U CN 202320527298U CN 219530385 U CN219530385 U CN 219530385U
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Abstract
The embodiment of the utility model provides a bracket and projection equipment, and relates to the technical field of supporting devices. The bracket can realize the adjustment of the angle and the height of the electronic equipment and can be stored in the electronic equipment. The support comprises a base and an adjusting piece, wherein the base is movably connected with the adjusting piece, and a first adjusting part which is connected with the electronic equipment and can adjust the position of the support relative to the electronic equipment is arranged on the adjusting piece. The bracket is used for supporting the electronic equipment.
Description
Technical Field
The embodiment of the utility model relates to the technical field of supporting devices, in particular to a bracket and projection equipment.
Background
Projection devices are widely used in conference rooms, classrooms, and households as an electronic device that can generate a projection screen. In the working process of the projection device, the projection device needs to be adjusted to a proper height and a proper projection angle according to the projection position.
The projection device itself generally does not have the function of adjusting the height and the projection angle, and a bracket is often required to be installed for the projection device, and the height and the projection angle are adjusted by the projection device in an auxiliary manner through the bracket so as to adjust the projection picture of the projection device to an optimal projection position. When the bracket in the related art is not used, the bracket is usually detached from the projection device to be stored, and the occupied space is large during storage.
Disclosure of Invention
The embodiment of the utility model provides a bracket and projection equipment, which can realize the adjustment of the angle and the height of electronic equipment and can be stored in the electronic equipment.
In one aspect, an embodiment of the present utility model provides a stent, including: the device comprises a base and an adjusting piece, wherein the base is provided with a fixing part; the adjusting piece is provided with a first adjusting part and a connecting part corresponding to the fixing part, the connecting part is connected with the fixing part so as to movably connect the adjusting piece with the base, the support is movably connected with the electronic equipment through the first adjusting part, and the relative position of the support and the electronic equipment can be adjusted through the first adjusting part in the axial direction of the adjusting piece.
In the embodiment of the utility model, the fixing part is arranged on the base, the connecting part is arranged on the adjusting piece, and the adjusting piece can be movably connected with the base through the coupling of the fixing part and the connecting part; meanwhile, the first adjusting part is arranged on the adjusting part, and the bracket can be movably arranged on the electronic equipment through the first adjusting part. The structure is arranged, and the angle of the adjusting piece relative to the base can be adjusted through the connecting part and the fixing part between the adjusting piece and the base; the relative position of the bracket and the electronic equipment can be adjusted through the first adjusting part on the adjusting piece. Compared with the bracket in the related art, the bracket provided by the embodiment of the utility model only comprises the adjusting piece and the base, the bracket can be arranged in a smaller structure, the bracket is arranged on the electronic equipment through the adjusting piece, the height of the electronic equipment can be adjusted through the first adjusting part on the adjusting piece, the angle of the electronic equipment can be adjusted through the movable connection mode of the adjusting piece and the base, and the bracket can be stored in the electronic equipment through the first adjusting part.
In one possible implementation of the utility model, the fixing part comprises a fixing lug and the connecting part comprises a rotating lug adapted to the fixing lug, the rotating lug being in rotational connection with the fixing lug.
In one possible implementation manner of the present utility model, the bracket further includes a fastener, the fixing lug is provided with a first fixing hole adapted to the fastener, the rotating lug is provided with a second fixing hole corresponding to the first fixing hole and adapted to the fastener, and the fastener is inserted into the first fixing hole and the second fixing hole to adjust the friction force between the rotating lug and the fixing lug.
In one possible implementation of the present utility model, a stop member is disposed at an end of the adjustment member away from the base, and the movement range of the adjustment member in the axial direction relative to the electronic device can be limited by the stop member.
In one possible implementation of the present utility model, the base is further provided with a second adjusting portion, and the second adjusting portion is located on a side of the fixing portion away from the adjusting member, and the base may be connected to the electronic device through the second adjusting portion.
In one possible implementation of the present utility model, at least one of the first adjustment portion and the second adjustment portion is a screw structure.
In one possible implementation of the utility model, a foot pad is provided on the base on the side facing away from the adjustment member.
In another aspect, an embodiment of the present utility model provides a projection apparatus, including: the projection host and the bracket provided by any one of the embodiments, wherein the projection host comprises a shell; the bracket is movably connected with the shell through a first adjusting part.
In one possible implementation of the utility model, a connecting piece is fixed on the housing, the connecting piece is provided with a third adjusting part which is matched with the first adjusting part, and the first adjusting part is movably connected with the third adjusting part.
In one possible embodiment of the utility model, a receiving space is provided in the housing in the axial direction of the connecting element, the receiving space being used to receive the adjusting element.
The projection equipment provided by the embodiment of the utility model has the same technical effect as the bracket of any one embodiment, namely, the height of the projection host can be adjusted through the first adjusting part because the adjusting part of the bracket is provided with the first adjusting part, the angle of the projection host can be adjusted through the movable connection mode of the adjusting part and the base, and the bracket can be accommodated in the shell of the projection host through the first adjusting part.
Drawings
FIG. 1 is an exploded view of a projection device according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a projection device according to an embodiment of the present utility model;
FIG. 3 is an exploded view of a stent according to an embodiment of the present utility model;
fig. 4 is a cross-sectional view of a projection apparatus according to an embodiment of the present utility model.
Reference numerals illustrate:
1-a bracket; 11-a base; 111-a fixing part; 1111—a first fixing hole; 112-a second adjustment section; 113-a base body; 1131-receiving slots; 12-an adjusting piece; 121-a first adjustment part; 122-connection; 1221-a second securing hole; 14-a stopper; 15-foot pads; 2-a projection host; 21-a housing; 211-accommodation chamber; 212-connecting holes; 22-connecting piece; 221-a third adjustment section; 3-fasteners.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the specific technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings in the embodiments of the present utility model. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In embodiments of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
Furthermore, in the embodiments of the present utility model, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.
In embodiments of the present utility model, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral unit; can be directly connected or indirectly connected through an intermediate medium.
In embodiments of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present utility model is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The embodiment of the utility model provides a support, which can be arranged on electronic equipment to support the electronic equipment and can be used for adjusting the angle and the height of the electronic equipment. For convenience of description, the support provided by the embodiment of the present utility model is described below by taking a projection device as an example, but the support provided by the embodiment of the present utility model is not limited to be applicable to projection devices, and the support can be applied to any electronic device that needs to support, adjust an angle, adjust a height, such as a desktop computer, a television, a display, and the like.
Referring to fig. 1 and 2, fig. 1 is an exploded view of a projection apparatus according to an embodiment of the present utility model, and fig. 2 is a cross-sectional view of the projection apparatus according to the embodiment of the present utility model. As shown in fig. 1 and 2, a bracket 1 provided in an embodiment of the present utility model includes: a base 11 and an adjusting member 12, wherein the base 11 has a fixing portion 111; the adjusting member 12 has a first adjusting portion 121 and a connecting portion 122 corresponding to the fixing portion 111, and the connecting portion 122 is connected to the fixing portion 111, so that the adjusting member 12 and the base 11 can be movably connected, and the bracket 1 is movably connected to the electronic device through the first adjusting portion 121 on the adjusting member 12, and in the axial direction of the adjusting member 12, the relative position of the bracket and the electronic device can be adjusted through the first adjusting portion 121.
In the embodiment of the utility model, since the fixing part 111 is arranged on the base 11, the connecting part 122 is arranged on the adjusting piece 12, and the adjusting piece 12 and the base 11 can be movably connected through the coupling of the fixing part 111 and the connecting part 122; meanwhile, the first adjusting part 121 is arranged on the adjusting piece 12, and the bracket 1 can be movably arranged on the electronic equipment through the first adjusting part 121. In such a configuration, the angle of the adjuster 12 with respect to the base 11 can be adjusted by the connecting portion 122 and the fixing portion 111 between the adjuster 12 and the base 11; the relative position of the bracket 1 and the electronic device can also be adjusted by the first adjusting part 121 on the adjusting piece 12. Compared with the bracket in the related art, the bracket 1 provided in the embodiment of the utility model only includes the adjusting member 12 and the base 11, the bracket 1 can be configured to have a smaller volume, the bracket 1 is arranged on the electronic device through the adjusting member 12, the height of the electronic device can be adjusted through the first adjusting portion 121 on the adjusting member 12, the angle of the electronic device can be adjusted through the movable connection mode of the adjusting member 12 and the base 11, and the bracket 1 can be accommodated inside the electronic device through the first adjusting portion 121.
In order to make the placement of the stand 1 more stable and smooth, as shown in fig. 1 and 2, a foot pad 15 is provided on the base body 113 of the base 11 on the side remote from the adjustment member 12. Illustratively, the base body 113 may be configured as a disc-shaped structure, and the receiving groove 1131 may be disposed on a side of the base body 113 away from the adjusting member 12, and the receiving groove 1131 may be configured as a circular groove, and correspondingly, the foot pad 15 may be configured as a circular ring adapted to the circular groove, and the circular foot pad 15 may be fixed in the circular groove by gluing or clamping. The foot pad 15 may be made of silica gel, rubber or the like.
Referring to fig. 3, fig. 3 is an exploded view of a bracket according to an embodiment of the present utility model. In a possible implementation manner, a fixing lug is provided on the base 11, the fixing lug is used as a fixing portion 111 on the base 11, correspondingly, a rotating lug matched with the fixing lug can be provided at one end of the adjusting member 12, the rotating lug is used as a connecting portion 122 on the adjusting member 12, and the rotating lug is rotationally connected with the fixing lug.
Illustratively, the fixing lugs are provided in a plate-like convex structure having two sides parallel to each other, or nearly parallel, in the axial direction along the base body 113. Correspondingly, the turning lugs are provided as two mutually parallel, or nearly parallel, plate-like projections extending in the axial direction of the adjustment member 12, the distance between the two plate-like projections on the adjustment member 12 corresponding to the thickness of the plate-like projections on the base 11. During assembly, the plate-shaped protrusions on the base 11 are clamped between the two plate-shaped protrusions on the adjusting piece 12, so that the rotating connection between the adjusting piece 12 and the base 11 is realized.
Alternatively, the fixing lugs may be provided as two mutually parallel, or nearly parallel plate-like convex structures formed extending in the axial direction of the base body 113. Correspondingly, the turning lugs are provided as one plate-like projection extending in the axial direction of the adjustment member 12, and the distance between the two plate-like projections on the base 11 coincides with the thickness of the one plate-like projection on the adjustment member 12. It should be noted that the embodiment of the present utility model is not limited to the number of plate-like projections as the rotation lugs and the fixing lugs.
In order to make the connection of the adjustment member 12 and the base 11 more stable, in a further possible implementation, a fastener 13 may be provided between the adjustment member 12 and the base 11. For example, a first fixing hole 1111 may be provided on a fixing lug as the fixing portion 111, an axial direction of the first fixing hole 1111 is perpendicular to an axial direction of the base body 113, and the first fixing hole 1111 and the fastener 13 are adapted; a second fixing hole 1221 corresponding to the first fixing hole 1111 is provided on the rotation lug as the connection part 122, and the second fixing hole 1221 is adapted to the fastener 13.
For example, the first fixing hole 1111 may be provided as a through hole, the second fixing hole 1221 on one plate-like protrusion of the rotation lug may be provided as a through hole, the second fixing hole 1221 on the other plate-like protrusion of the rotation lug may be provided as a screw hole, and the fastener 13 may employ a bolt adapted to the screw hole. After the rotation lug is aligned with the fixing lug, the fastener 13 is passed through the second fixing hole 1221 and the first fixing hole 1111, and the fastener 13 is screwed on the rotation lug by a screw structure. Alternatively, the first fixing hole 1111 and the second fixing hole 1221 are each provided as a through hole, and the fastener 13 may employ a bolt pair, and the rotating lug and the fixing lug may be connected using the bolt pair.
As yet another example, a circular groove may be provided on the fixing lug as the fixing portion 111, the axial direction of the circular groove being perpendicular to the axial direction of the base body 113, a cylindrical protrusion corresponding to the circular groove may be provided on the rotating lug as the connecting portion 122, and an interference fit may be formed between the rotating lug and the fixing lug, with a large rotating friction force therebetween. After the rotating lug is connected with the fixing lug, the cylindrical protrusion is located in the circular groove, and when the adjusting piece 12 is rotated and adjusted, the adjusting piece 12 can be rotated by taking the cylindrical protrusion as a rotating shaft.
In this embodiment, since the fixing lugs are provided on the base 11 and the rotating lugs are provided on the regulating member 12, the regulating member 12 and the base 11 can be rotatably connected with the fixing lugs by the rotating lugs; further, the first fixing hole 1111 is provided in the fixing lug, the second fixing hole 1221 is provided in the rotating lug, and the fastening member 13 may be used, and the fastening member 13 may be inserted into the first fixing hole 1111 and the second fixing hole 1221, so that the fastening member 13 may be used as a rotation shaft when the adjusting member 12 rotates relative to the base 11, and the pressing force between the rotating lug and the fixing lug may be adjusted by the fastening member 13, so that the friction force between the rotating lug and the fixing lug may be adjusted. When the angle of the adjusting member 12 relative to the base 11 needs to be adjusted, the fastener 13 can be loosened first, so that the adjusting member 12 can be adjusted, and when the adjusting member 12 is adjusted to a required angle, the fastener 13 is tightened again, so that enough friction force exists between the rotating lug and the fixing lug, and therefore the adjusting member 12 cannot rotate relative to the base 11 at will.
In yet another possible implementation, as shown in fig. 3, a stopper 14 may be provided at an end of the adjustment member 12 remote from the base 11, and when the stand 1 is mounted on the electronic device, a movement range of the adjustment member 12 with respect to the electronic device in the axial direction may be limited by the stopper 14. For example, the stopper 14 may be provided as a circular ring having a diameter larger than that of the first regulating portion 121, and the circular ring may be fixed to the end of the regulating member 12 remote from the base 11. The stopper 14 may be provided as a cylinder having a diameter larger than that of the first regulating portion 121, and the cylinder may be fixed to the regulating member 12 at an end remote from the base 11. The stopper 14 may be manufactured separately from the adjusting member 12, and the separately manufactured stopper 14 may be fixed to the adjusting member 12, or the stopper 14 and the adjusting member 12 may be integrally formed, which is not limited in the embodiment of the present utility model.
In this embodiment, since the stopper 14 is provided at the end of the adjusting member 12 away from the base 11, the stopper 14 can prevent the adjusting member 12 from being pulled out of the electronic device when the position of the bracket 1 relative to the electronic device is adjusted by the first adjusting portion 121 on the adjusting member 12 after the bracket 1 is provided on the electronic device.
In yet another possible implementation, as shown in fig. 3, a second adjusting portion 112 may also be provided on the base 11, where the second adjusting portion 112 is located on a side of the fixing portion 111 away from the adjusting member 12, and the base 11 may also be connected to the electronic device through the second adjusting portion 112. Illustratively, the second adjustment portion 112 is formed to extend on one side of the base body 113 in the axial direction along the base body 113, and the fixing portion 111 is disposed on an end of the second adjustment portion 112 remote from the base body 113. The second adjusting portion 112 may be integrally formed with the base body 113, or may be separately formed. In this way, when adjusting the position of the stand 1 relative to the electronic device, the adjustment range of the stand 1 relative to the electronic device can be increased by the second adjustment portion 112 on the base 11.
As shown in fig. 3, the first adjustment portion 121 may be provided with a male screw, or the second adjustment portion 112 may be provided with a male screw, and in this case, the male screw as the first adjustment portion 121 and the male screw as the second adjustment portion 112 need to be provided with a screw structure having a uniform screw diameter and a uniform lead; alternatively, the first adjustment portion 121 may be provided in a male screw structure, and the second adjustment portion 112 may be provided in a cylindrical structure; alternatively, the first adjustment portion 121 may be configured as a cylinder, and the second adjustment portion 112 may be configured as an external screw; correspondingly, an internal thread matched with the external thread is arranged on the electronic equipment. The first adjustment portion 121 may be configured as an internal thread, and an external thread that is adapted to the internal thread may be provided on the electronic device. The embodiment of the present utility model is not limited to the structural form of the first adjustment portion 121 and the second adjustment portion 112. In this embodiment, since at least one of the first adjustment portion 121 and the second adjustment portion 112 is provided in a screw structure, adjustment of the relative position of the bracket 1 on the electronic device can be achieved by screwing the bracket 1.
Meanwhile, the embodiment of the utility model also provides a projection device, which comprises a projection host 2 and the bracket 1 provided by any one of the embodiments, wherein the projection host 2 comprises a shell 21, and other electronic devices and structural members of the projection host 2 can be arranged in the shell 21; the bracket 1 is movably connected with the housing 21 through the first adjusting part 121, and the height and the projection angle of the projection host 2 can be adjusted through the bracket 1.
In one possible implementation, as shown in fig. 1 and fig. 2, a connection hole 212 may be provided on the housing 21 of the projection host 2, and a connection member 22 is fixed in the connection hole 212, where a third adjustment portion 221 adapted to the first adjustment portion 121 is provided on the connection member 22, and the first adjustment portion 121 and the third adjustment portion 221 may be movably connected to movably connect the bracket 1 with the projection host 2. The connecting member 22 and the housing 21 may be integrally formed, or may be separately processed and then fixed to the housing 21. Illustratively, the first adjustment portion 121 may be provided as an external thread and the third adjustment portion 221 may be provided as an internal thread; alternatively, the first adjusting portion 121 may be provided with female screw and the third adjusting portion 221 may be provided with male screw, so that the bracket 1 and the projection host 2 may be screwed.
Referring to fig. 4, fig. 4 is a cross-sectional view of a projection apparatus according to an embodiment of the present utility model. As shown in fig. 2 and 4, a housing cavity 211 may be provided in the housing 21 of the projection main unit 2, and the adjustment member 12 and the second adjustment portion 112 on the base 11 may be completely housed in the housing cavity 211 when the bracket 1 is housed in the housing 21. For example, the accommodating chamber 211 may be provided in a semi-closed structure except for the connection hole 212, so that the space accommodating the bracket 1 may be separated from other spaces inside the housing 21 by the accommodating chamber 211 regardless of the position of the bracket 1 with respect to the housing 21, and thus dust or the like may be prevented from entering the housing 21.
In this embodiment, since the bracket 1 is provided on the projection host 2, the adjusting member 12 can be withdrawn or extended from or into the housing 21 of the projection host 2 by screwing the bracket 1, so that the height of the projection host 2 can be adjusted; as shown in fig. 4, when the bracket 1 is not required to be used, the adjustment members 12 of the bracket 1 can be entirely accommodated in the housing 21, thereby facilitating the accommodation of the bracket 1. When the bracket 1 needs to be used, as shown in fig. 2, the bracket 1 is only required to be screwed out of the shell 21, no other tools are needed in the screwing process, and the stop piece 14 on the bracket 1 can prevent the adjusting piece 12 from being separated from the shell 21; meanwhile, since the connecting part 122 and the fixing part 111 which are rotatably connected are provided between the adjusting member 12 and the base 11, the inclination angle of the projection host 2 can be adjusted, so that the projection angle of the projection host 2 can be adjusted. The projection host 2 of the projection device is provided with the built-in bracket 1, whether the height and the projection angle of the projection host 2 need to be adjusted by using the built-in bracket 1 can be determined according to the use scene of the projection device, if the function is not needed, the bracket 1 is contained in the shell 21 of the projection host 2, the bracket 1 does not occupy other space, and the portability of the projection device in use can be improved through the structural arrangement.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. A stent, comprising:
a base (11), wherein the base (11) has a fixing portion (111);
the adjusting piece (12), adjusting piece (12) have first adjustment portion (121) and with connecting portion (122) that fixed part (111) corresponds, connecting portion (122) with fixed part (111) are connected, with adjusting piece (12) with base (11) swing joint, support (1) are through first adjustment portion (121) and electronic equipment swing joint, in along the axial direction of adjusting piece (12), accessible first adjustment portion (121) are adjusted support (1) with electronic equipment's relative position.
2. The bracket according to claim 1, characterized in that the fixing part (111) comprises a fixing lug, and the connecting part (122) comprises a rotating lug adapted to the fixing lug, the rotating lug being rotatably connected with the fixing lug.
3. The bracket according to claim 2, further comprising a fastener (13), wherein a first fixing hole (1111) adapted to the fastener (13) is provided on the fixing lug, a second fixing hole (1221) corresponding to the first fixing hole (1111) and adapted to the fastener (13) is provided on the rotating lug, and the fastener (13) is inserted into the first fixing hole (1111) and the second fixing hole (1221) to adjust the magnitude of friction force between the rotating lug and the fixing lug.
4. A bracket according to any one of claims 1-3, characterized in that the end of the adjustment member (12) remote from the base (11) is provided with a stop member (14), by means of which stop member (14) the range of movement of the adjustment member (12) in the axial direction relative to the electronic device is limited.
5. A bracket according to any one of claims 1-3, characterized in that the base (11) is further provided with a second adjustment part (112), the second adjustment part (112) being located on the side of the fixing part (111) remote from the adjustment member (12), the base (11) being connectable to the electronic device via the second adjustment part (112).
6. The bracket according to claim 5, wherein at least one of the first adjustment portion (121) and the second adjustment portion (112) is a threaded structure.
7. A bracket according to any one of claims 1-3, characterized in that a foot pad (15) is provided on the base (11) on the side remote from the adjustment member (12).
8. A projection device, comprising:
a projection host (2) comprising a housing (21);
the bracket (1) of any one of claims 1 to 7, the bracket (1) being movably connected to the housing (21) by means of the first adjustment portion (121).
9. Projection apparatus according to claim 8, characterized in that a connecting piece (22) is fixed on the housing (21), the connecting piece (22) is provided with a third adjusting part (221) adapted to the first adjusting part (121), and the first adjusting part (121) is movably connected with the third adjusting part (221).
10. Projection device according to claim 9, characterized in that a receiving chamber (211) is provided in the housing (21) in the axial direction of the connecting piece (22), which receiving chamber (211) is intended to receive the adjusting piece (12).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202320527298.6U CN219530385U (en) | 2023-03-17 | 2023-03-17 | Support and projection equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202320527298.6U CN219530385U (en) | 2023-03-17 | 2023-03-17 | Support and projection equipment |
Publications (1)
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CN219530385U true CN219530385U (en) | 2023-08-15 |
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CN202320527298.6U Active CN219530385U (en) | 2023-03-17 | 2023-03-17 | Support and projection equipment |
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2023
- 2023-03-17 CN CN202320527298.6U patent/CN219530385U/en active Active
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