CN217945543U - Rearview structure of helicopter and helicopter - Google Patents
Rearview structure of helicopter and helicopter Download PDFInfo
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- CN217945543U CN217945543U CN202222458062.XU CN202222458062U CN217945543U CN 217945543 U CN217945543 U CN 217945543U CN 202222458062 U CN202222458062 U CN 202222458062U CN 217945543 U CN217945543 U CN 217945543U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The utility model discloses a back vision structure and helicopter of helicopter belongs to helicopter technical field, in order to make the left and right seat driver of helicopter can both effectually observe the goods hook, hang the state of thing and front and back undercarriage, the back vision structure of helicopter is including truss (1) and double mirror support (2) that connect gradually, and truss (1) can be connected fixedly with helicopter casing (5), and double mirror support (2) can be located the left downside and the right downside of helicopter head (51), is provided with first rear-view mirror (3) and second rear-view mirror (4) on double mirror support (2). The left side and the right side of the rear view structure of the helicopter are both provided with double-mirror supports, and the double-mirror supports are provided with two rear-view mirrors, so that a left driver and a right driver can effectively observe the states of a cargo hook, a hanging object and a front landing gear and a rear landing gear through the rear-view mirrors on one side of the left driver and the right driver, and the safety of hanging operation is ensured.
Description
Technical Field
The utility model relates to a helicopter technical field, it is a rear view structure of helicopter, still a helicopter specifically.
Background
At present, when the helicopter is carried out for hanging operation and flying, a pilot needs to lean out a body of the pilot from a cockpit according to operation conditions so as to carefully observe the conditions of objects hung outside and the ground and cannot observe the state of an abdomen cargo hook. In addition, the helicopter usually adopts the single-side rearview structure additionally arranged on the right side of the helicopter body, the cargo observation requirement of a right pilot can only be met, a left pilot cannot observe any hung object outside the helicopter, the mirror surface of the rearview mirror is generally small, the whole visual field range of the pilot is small, and the safety coefficient of flight operation is low.
SUMMERY OF THE UTILITY MODEL
In order to make the left and right driver of helicopter can both effectually observe the state of cargo hook, hang the thing and front and back undercarriage, the utility model provides a rear view structure of helicopter, the left and right sides of rear view structure of helicopter all is equipped with the double mirror support, is provided with two rear-view mirrors on the double mirror support, makes left and right driver can both effectually observe the state of cargo hook, hang the thing, front and back undercarriage through the rear-view mirror of one side separately, ensures to hang operation safety.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a rear-view structure of helicopter, is including the truss and the double mirror support that connect gradually, and the truss can be connected fixedly with the helicopter casing, and the double mirror support can be located the left downside and the right downside of helicopter head, is provided with first rear-view mirror and second rear-view mirror on the double mirror support.
The truss contains left truss body, centre sill and the right truss body that sets gradually from a left side to the right side, and the centre sill can be located the below of helicopter head, and left truss body can be located outside the left side of helicopter head, and right truss body can be located outside the right side of helicopter head.
The left truss body contains a left tubular beam, the left tubular beam contains a left lower vertical section, a left outer inclined section, a left upper horizontal section, a left inner inclined section and a left inner horizontal section which are sequentially connected from left to right, and the double-mirror support is connected with the left lower vertical section.
The middle beam, the left lower vertical section, the left outer inclined section, the left upper horizontal section, the left inner inclined section and the left inner horizontal section are all positioned in the same vertical plane which is vertical to the front-back direction, the left inner horizontal section is fixedly connected with the left end of the middle beam through a pin, a sleeve and a throat hoop, and the left end of the middle beam can be fixedly connected with the helicopter shell through the first hoop, the lower support and the lower suspension loop in sequence.
The left truss body further comprises a front inclined upper stay bar and a front lower stay bar, the upper right end of the front inclined upper stay bar can be fixedly connected with a helicopter shell through a first connecting plate, the lower left end of the front inclined upper stay bar is fixedly connected with the upper left horizontal section through a clamp, the right end of the front lower stay bar is fixedly connected with a first hoop through a ball hinge joint, and the left end of the front lower stay bar is fixedly connected with the upper end of the lower left vertical section through a clamp.
The left truss body further comprises a rear upper inclined strut and a rear lower inclined strut, the rear upper end of the rear upper inclined strut can be fixedly connected with the helicopter shell through the ball hinge and the second connecting plate in sequence, the front lower end of the rear upper inclined strut is fixedly connected with the left outer inclined section through the hoop, the rear upper end of the rear lower inclined strut can be fixedly connected with the helicopter shell through the ball hinge and the second connecting plate in sequence, and the front lower end of the rear lower inclined strut is fixedly connected with the lower end of the left lower upright section through the hoop.
The left truss body and the right truss body are bilaterally symmetrical and have the same structure, the right truss body comprises a right tubular beam, and the right tubular beam and the middle beam are connected into a whole.
The double-mirror support comprises a first mirror stand column, a first horizontal rod, a pipe clamp, a second horizontal rod and a second mirror stand column which are sequentially connected along the horizontal direction, a pipe clamp fixing sleeve is arranged outside the middle of a lower left vertical section, the double-mirror support can rotate around the lower left vertical section, a first rearview mirror is sequentially connected with the first mirror stand column through a first mirror frame and a second hoop, and the second rearview mirror is sequentially connected with the second mirror stand column through the second mirror frame and a third hoop.
First rear-view mirror is located the place ahead of the lower left vertical section, and the second rear-view mirror is located the rear of the lower left vertical section, and first rear-view mirror can the luffing motion and rotate around first mirror stand, and the second rear-view mirror can the luffing motion and rotate around second mirror stand, and first rear-view mirror and second rear-view mirror all are the rectangle structure, and the length direction and the horizontal plane of first rear-view mirror are parallel, and the length direction of second rear-view mirror can be parallel with vertical direction.
A helicopter comprises a helicopter shell and a rear view structure of the helicopter, a truss is fixedly connected with the head of the helicopter, and a double-mirror support is positioned in front of a cab of the helicopter.
The beneficial effects of the utility model are that:
1. by respectively additionally arranging one set of double-mirror support on two sides of the helicopter head and respectively additionally arranging two rearview mirrors on each set of double-mirror support, a left driver and a right driver can effectively observe the states of a cargo hook, a hanging object and a front undercarriage and a rear undercarriage through the rearview mirrors on the respective sides.
2. Through 4 point connection fixed and the design of many connecting rods structure with the fuselage, the back vision structure is more firm, and the fuselage vibration is less to the influence of mirror surface.
3. The double-mirror bracket is provided with double mirror surfaces, the overall size of each mirror is 440mm multiplied by 220mm, the radian of the mirror surface is larger, and the visual field is wider. Fully ensures the operation safety when the helicopter executes the outer hanging task.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention.
Figure 1 is a schematic view of a helicopter according to the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of a portion B in fig. 1.
Fig. 4 is an enlarged schematic view of a portion C in fig. 1.
Fig. 5 is an enlarged view of a portion D in fig. 1.
Fig. 6 is a perspective view of a double mirror holder portion.
Fig. 7 is a schematic top view of a two-mirror holder.
The reference numerals are illustrated below:
1. a truss; 2. a double mirror support; 3. a first rear view mirror; 4. a second rear view mirror; 5. a helicopter housing;
11. a left truss body; 12. a center sill; 13. a right truss body;
21. a first mirror pillar; 22. a first cross bar; 23. a pipe clamp; 24. a second cross bar; 25. a second mirror support;
31. a first frame; 32. a second hoop; 33. a first bolt; 34. a second bolt;
41. a second frame; 42. a third hoop;
51. a helicopter head;
111. a left tubular beam; 112. a front inclined upper stay bar; 113. a front lower stay bar; 114. a rear upper diagonal brace; 115. a rear lower diagonal brace; 116. a first connecting plate; 117. clamping a hoop; 118. a ball joint; 119. a second connecting plate;
121. a first hoop; 122. a lower bracket; 123. a lower hanging lug;
131. a right tubular beam;
1111. a lower left upright section; 1112. a left outer inclined section; 1113. an upper left horizontal segment; 1114. a left inner inclined section; 1115. a left inner horizontal segment; 1116. a throat hoop.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
A rearview structure of a helicopter comprises a truss 1 and a double-mirror support 2 which are sequentially connected, wherein the truss 1 can be fixedly connected with a helicopter shell 5, the double-mirror support 2 can be positioned at the left lower side and the right lower side of a helicopter head 51, and a first rearview mirror 3 and a second rearview mirror 4 are arranged on the double-mirror support 2, as shown in figure 1.
The left side and the right side of a rear-view structure of the helicopter are both provided with a double-mirror support 2, and the double-mirror support 2 is provided with two rear-view mirrors (a first rear-view mirror 3 and a second rear-view mirror 4), so that a left driver and a right driver can effectively observe the states of a cargo hook, a hanging object and a front landing gear and a rear landing gear through the rear-view mirrors on one side of the left driver and the right driver, and the safety of hanging operation is ensured.
In the present embodiment, the truss 1 includes a left truss body 11, a middle beam 12, and a right truss body 13 arranged from left to right in sequence, the middle beam 12 can be located below the helicopter head 51, the left truss body 11 can be located outside the left side of the helicopter head 51, and the right truss body 13 can be located outside the right side of the helicopter head 51.
In this embodiment, the left truss body 11 comprises a left tubular beam 111, the left tubular beam 111 comprises a left lower upright section 1111, a left outer inclined section 1112, a left upper horizontal section 1113, a left inner inclined section 1114 and a left inner horizontal section 1115 which are sequentially connected from left to right, the left lower upright section 1111 is lower than the middle beam 12, and the double mirror support 2 is connected with the left lower upright section 1111 as shown in fig. 1.
In this embodiment, the middle beam 12, the lower left upright section 1111, the outer left inclined section 1112, the upper left horizontal section 1113, the inner left inclined section 1114 and the inner left horizontal section 1115 are all located in the same vertical plane, the vertical plane is perpendicular to the front-rear direction, the inner left horizontal section 1115 is fixedly connected to the left end of the middle beam 12 through a pin, a sleeve and a throat hoop 1116, and the left end of the middle beam 12 can be fixedly connected to the helicopter case 5 through the first hoop 121, the lower bracket 122 and the lower suspension loop 123 in sequence, as shown in fig. 5.
In this embodiment, the left truss body 11 further includes a front oblique upper brace 112 and a front lower brace 113, the upper right end of the front oblique upper brace 112 can be connected and fixed with the helicopter case 5 through a first connecting plate 116 and a bolt, the lower left end of the front oblique upper brace 112 is connected and fixed with the upper left horizontal section 1113 through a hoop 117 and a bolt, the right end of the front lower brace 113 is connected and fixed with a first hoop 121 through a ball joint 118, the left end of the front lower brace 113 is connected and fixed with the upper end of the lower left upright section 1111 through a hoop 117 and a bolt, and both the front oblique upper brace 112 and the front lower brace 113 are located in the vertical plane, as shown in fig. 2 and 3.
In this embodiment, the left truss body 11 further includes a rear upper diagonal brace 114 and a rear lower diagonal brace 115, the rear upper diagonal brace 114 and the rear lower diagonal brace 115 are located behind the left truss body 11, a rear upper end of the rear upper diagonal brace 114 can be connected and fixed to the helicopter casing 5 through a ball joint 118, a second connecting plate 119 and a bolt in sequence, a front lower end of the rear upper diagonal brace 114 is connected and fixed to the left outer inclined section 1112 through a hoop 117 and a bolt, a rear upper end of the rear lower diagonal brace 115 can be connected and fixed to the helicopter casing 5 through the ball joint 118, the second connecting plate 119 and a bolt in sequence, a front lower end of the rear lower diagonal brace 115 is connected and fixed to a lower end of the left lower upright section 1111 through a hoop 117 and a bolt, as shown in fig. 4 and 6.
The left pipe beam 111 is fixedly connected with the helicopter shell 5 through the front inclined upper stay bar 112, the front lower stay bar 113, the rear upper inclined stay bar 114 and the rear lower inclined stay bar 115, the structural design that the four stay bars are connected is adopted, the rear view structure can be more stable, the influence of the vibration of the helicopter body on the mirror surface is small, the observation by a driver is facilitated, and the operation safety when the helicopter executes an outer hanging task is fully ensured.
In this embodiment, the left truss body 11 and the right truss body 13 are bilaterally symmetrical and have the same structure, the right truss body 13 includes a right tubular beam 131, and the right tubular beam 131 is integrally connected with the middle beam 12. The left truss body 11 and the right truss body 13 are mirror images of each other about a fuselage symmetrical center plane of the helicopter, the fuselage symmetrical center plane is parallel to the front-back direction, the fuselage symmetrical center plane is perpendicular to the horizontal plane, and the connection mode of the left truss body 11 and the helicopter shell 5 is the same as the connection mode of the right truss body 13 and the helicopter shell 5. The left truss body 11 and the right truss body 13 are respectively connected with a double mirror support 2, and the connection mode of the left truss body 11 and the double mirror support 2 is the same as that of the right truss body 13 and the double mirror support 2, as shown in fig. 6.
In this embodiment, the double mirror support 2 includes a first mirror stand 21, a first cross bar 22, a pipe clamp 23, a second cross bar 24 and a second mirror stand 25 which are connected in sequence along the horizontal direction, the pipe clamp 23 is fixedly sleeved outside the middle portion of the left lower upright section 1111, the double mirror support 2 can rotate around the left lower upright section 1111, the first rearview mirror 3 is connected with the first mirror stand 21 through the first mirror bracket 31 and the second hoop 32 in sequence, and the second rearview mirror 4 is connected with the second mirror stand 25 through the second mirror bracket 41 and the third hoop 42 in sequence.
In this embodiment, first rear-view mirror 3 is located the place ahead of lower left vertical section 1111, and second rear-view mirror 4 is located the rear of lower left vertical section 1111, and first rear-view mirror 3 can the luffing motion and rotate around first mirror stand 21, and second rear-view mirror 4 can the luffing motion and rotate around second mirror stand 25, and first rear-view mirror 3 and second rear-view mirror 4 all are the rectangle structure, and the length direction of first rear-view mirror 3 is parallel with the horizontal plane, and the length direction of second rear-view mirror 4 can be parallel with vertical direction.
In the present embodiment, the first mirror post 21 is located in front of the lower left upright section 1111, the second mirror post 25 is located behind the lower left upright section 1111, and the angle α between the first cross bar 22 and the second cross bar 24 may be 120 ° to 150 ° as shown in fig. 7. The first mirror bracket 31 and the second anchor ear 32 are connected through a first bolt 33, the first bolt 33 is in a horizontal state, when the first bolt 33 is loosened, the first rearview mirror 3 can swing up and down (the first rearview mirror 3 can rotate around the first bolt 33) and rotate around the first mirror upright post 21, a second bolt 34 is arranged between the first bolt 33 and the first rearview mirror 3, and the second bolt 34 can limit the rotation angle of the first rearview mirror 3 around the first bolt 33, as shown in fig. 6.
The connection mode between the first frame 31 and the second hoop 32 is the same as the connection mode between the second frame 41 and the third hoop 42. First rear-view mirror 3 contains picture frame and the lens that connects gradually, and the picture frame of first rear-view mirror 3 is connected fixedly with first mirror holder 31, and the lens of first rear-view mirror 3 is the cambered surface lens, and the overall dimension of the lens of first rear-view mirror 3 is 440mm x 220mm, and the field of vision is wider. The first rear view mirror 3 and the second rear view mirror 4 are identical in size and construction.
The left pipe beam 111 is fixedly connected with the helicopter shell 5 through the front inclined upper stay bar 112, the front lower stay bar 113, the rear upper inclined stay bar 114 and the rear lower inclined stay bar 115, the structural design that the four stay bars are connected is adopted, the rear view structure can be more stable, the influence of the vibration of the helicopter body on the mirror surface is small, the observation by a driver is facilitated, and the operation safety when the helicopter executes an outer hanging task is fully ensured. The left tubular beam 111, the middle beam 12 and the right tubular beam 131 can all adopt 6061 aluminum alloy tubes with phi of 35mm, the front oblique upper stay 112, the front lower stay 113, the rear upper oblique stay 114 and the rear lower oblique stay 115 can all adopt 6061 aluminum alloy tubes with phi of 20mm, and the double-mirror bracket 2 is formed by welding 6061 aluminum tubes.
A helicopter is described below, which comprises a helicopter case 5 and the above-mentioned rear view structure of the helicopter, a truss 1 is fixedly connected to a helicopter head 51, two-mirror brackets 2 are provided on the lower left and lower right sides of the helicopter head 51, and the two-mirror brackets 2 are provided in front of the cab of the helicopter. The double-mirror bracket 2 is lower than the lower surface of the helicopter body, and the double-mirror bracket 2 is higher than the walking wheels of the helicopter.
For convenience of understanding and description, the present invention is expressed by using an absolute position relationship, and if not specifically stated, the direction word "up" corresponds to the Z direction in fig. 1, the direction word "left" corresponds to the X direction in fig. 1, the direction word "front" corresponds to the Y direction in fig. 1, and the X direction, the Y direction, and the Z direction in fig. 1 may correspond to the X axis, the Y axis, and the Z axis in the coordinate system between spaces one to one. The above directional terms should not be construed or interpreted as limiting the scope of the present invention.
It is also to be understood that the present invention provides an orientation word "up" corresponding to the upper side direction of the driver in the cab of the helicopter, an orientation word "down" corresponding to the lower side direction of the driver in the cab of the helicopter, an orientation word "left" corresponding to the left side direction of the driver in the cab of the helicopter, an orientation word "right" corresponding to the right side direction of the driver in the cab of the helicopter, an orientation word "front" corresponding to the front side direction of the driver in the cab of the helicopter, and an orientation word "rear" corresponding to the rear side direction of the driver in the cab of the helicopter.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and technical scheme, embodiment and the embodiment all can the independent assortment use.
Claims (10)
1. The utility model provides a rear-view structure of helicopter, its characterized in that, rear-view structure of helicopter is including truss (1) and double mirror support (2) that connect gradually, and truss (1) can be connected fixedly with helicopter casing (5), and double mirror support (2) can be located the left downside and the right downside of helicopter head (51), is provided with first rear-view mirror (3) and second rear-view mirror (4) on double mirror support (2).
2. Rear view structure of a helicopter according to claim 1, characterized in that the truss (1) comprises a left truss body (11), a middle beam (12) and a right truss body (13) arranged in sequence from left to right, the middle beam (12) being able to be located below the helicopter head (51), the left truss body (11) being able to be located outside the left side of the helicopter head (51), the right truss body (13) being able to be located outside the right side of the helicopter head (51).
3. The rearview structure of a helicopter as claimed in claim 2, characterized in that the left truss body (11) comprises a left tubular beam (111), the left tubular beam (111) comprises a left lower upright section (1111), a left outer inclined section (1112), a left upper horizontal section (1113), a left inner inclined section (1114) and a left inner horizontal section (1115) which are connected in sequence from left to right, and the double mirror bracket (2) is connected to the left lower upright section (1111).
4. The rearview structure of a helicopter as claimed in claim 3, characterized in that the center sill (12), the lower left upright section (1111), the outer left inclined section (1112), the upper left horizontal section (1113), the inner left inclined section (1114) and the inner left horizontal section (1115) are all located in the same vertical plane, which is perpendicular to the fore-and-aft direction, the inner left horizontal section (1115) is fixedly connected to the left end of the center sill (12) by means of pins, bushings and a throat band (1116), and the left end of the center sill (12) can be fixedly connected to the helicopter case (5) by means of the first anchor ear (121), the lower bracket (122) and the lower suspension loop (123) in sequence.
5. A rear-view arrangement according to claim 4, characterised in that the left truss body (11) further comprises a front diagonal upper strut (112) and a front lower strut (113), the upper right end of the front diagonal upper strut (112) being connectable to the helicopter casing (5) via a first connection plate (116), the lower left end of the front diagonal upper strut (112) being connectable to the upper left horizontal section (1113) via a clamp (117), the right end of the front lower strut (113) being connectable to a first hoop (121) via a ball joint (118), and the left end of the front lower strut (113) being connectable to the upper end of the lower left upright section (1111) via a clamp (117).
6. The rearview structure of a helicopter as claimed in claim 4, wherein the left truss body (11) further comprises a rear upper diagonal brace (114) and a rear lower diagonal brace (115), the rear upper end of the rear upper diagonal brace (114) can be fixedly connected to the helicopter casing (5) through a ball joint (118) and a second connecting plate (119) in sequence, the front lower end of the rear upper diagonal brace (114) is fixedly connected to the left outer inclined section (1112) through a hoop (117), the rear upper end of the rear lower diagonal brace (115) can be fixedly connected to the helicopter casing (5) through the ball joint (118) and the second connecting plate (119) in sequence, and the front lower end of the rear lower diagonal brace (115) is fixedly connected to the lower end of the left lower upright section (1111) through the hoop (117).
7. A rear-view structure of a helicopter according to claim 1, wherein the left truss body (11) and the right truss body (13) are bilaterally symmetrical and have the same structure, and the right truss body (13) includes a right tubular beam (131), and the right tubular beam (131) is integrally connected to the middle beam (12).
8. The rearview structure of a helicopter according to claim 3, characterized in that the double mirror support (2) comprises a first mirror support column (21), a first cross bar (22), a pipe clamp (23), a second cross bar (24) and a second mirror support column (25) which are connected in sequence along the horizontal direction, the pipe clamp (23) is fixedly sleeved outside the middle of the left lower vertical section (1111), the double mirror support (2) can rotate around the left lower vertical section (1111), the first rearview mirror (3) is connected with the first mirror support column (21) through a first mirror bracket (31) and a second hoop (32) in sequence, and the second rearview mirror (4) is connected with the second mirror support column (25) through a second mirror bracket (41) and a third hoop (42) in sequence.
9. A rear view structure of a helicopter according to claim 8, characterized in that the first rear view mirror (3) is located in front of the lower left upright section (1111) and the second rear view mirror (4) is located behind the lower left upright section (1111), the first rear view mirror (3) can swing up and down and rotate around the first mirror post (21), the second rear view mirror (4) can swing up and down and rotate around the second mirror post (25), the first rear view mirror (3) and the second rear view mirror (4) are each of a rectangular configuration, the length direction of the first rear view mirror (3) is parallel to the horizontal plane and the length direction of the second rear view mirror (4) is parallel to the vertical direction.
10. A helicopter characterized in that it comprises a helicopter casing (5) and a rear view structure of the helicopter of claim 1, a truss (1) is fixed in connection with the helicopter head (51), and a double mirror support (2) is located in front of the cockpit of the helicopter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222458062.XU CN217945543U (en) | 2022-09-16 | 2022-09-16 | Rearview structure of helicopter and helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222458062.XU CN217945543U (en) | 2022-09-16 | 2022-09-16 | Rearview structure of helicopter and helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217945543U true CN217945543U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222458062.XU Active CN217945543U (en) | 2022-09-16 | 2022-09-16 | Rearview structure of helicopter and helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217945543U (en) |
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2022
- 2022-09-16 CN CN202222458062.XU patent/CN217945543U/en active Active
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