Concealed anti-collision angle bead structure of inward opening window

Abstract

The utility model discloses a hidden type anti-collision angle bead structure of an inward opening window, relates to the technical field of door and window assemblies, and solves the problem that when a window sash is opened, a user collides with the corner of the window sash, so that the user and the corner of the window sash are prevented from being damaged and damaged. A sliding structure composed of a third connecting rod and a limiting piece and a connecting rod transmission mechanism composed of the third connecting rod, a second connecting rod and a connecting rotating column are adopted, the whole corner protection structure is driven to rotate back and forth around the connecting rotating column, and a compression spring and an extension spring used for resetting are additionally arranged, so that the corner protection structure can be opened or closed along with a window sash; according to the inward-opening window corner protection structure capable of automatically stretching out or hiding, when a window sash is closed, on the premise that the appearance of a window body is not affected, it is guaranteed that when the window sash is opened, a user is prevented from colliding with the corner of the window sash, and the user and the corner of the window sash are protected against damage and damage.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of door and window assembly, especially to a hidden anti-collision corner structure of in-swinging window. BACKGROUND

[0002] The in-swinging window is widely used in building outer windows, and the opening sash of the in-swinging window is located at the indoor side in the casement state. The corner part of the lower side of the sash is generally sharp right angle. In a certain height condition, the user may collide with the corner part of the sash and cause damage and loss to the user and the corner part of the sash in the case of inattention. Some products are chamfered at the corner part of the sash, but only slightly alleviate the collision. Some soft corner products can be pasted on the indoor side corner part of the sash to avoid collision, but affect the overall appearance of the window. SUMMARY

[0003] In view of the above problems that the user collides with the corner part of the sash when the sash is opened, causing damage and loss to the user and the corner part of the sash, the utility model aims to provide a hidden anti-collision corner structure of in-swinging window, which can avoid the user colliding with the corner part of the sash when the sash is opened and protect the user and the corner part of the sash from damage and loss.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0005] A hidden anti-collision corner structure of in-swinging window, comprising: a first connecting rod 1, a second connecting rod 2, a third connecting rod 3, a limiting piece 4, a compression spring 5, a connecting rotating column 6, a tension spring 7 and a rotating corner structure 8. The rotating corner structure 8 comprises: a limiting wall cylinder 82 and a corner 84. The end of the corner 84 is connected with the outer wall of the limiting wall cylinder 82. When the sash of the in-swinging window is in the half-open and fully open state, the corner 84 is used for covering the corner part of the sash.

[0006] The connecting rotating column 6 is movably installed in the limiting wall cylinder 82. The limiting wall cylinder 82 is a cylinder structure with a top opening. The bottom of the connecting rotating column 6 is connected with the bottom of the limiting wall cylinder 82 through the tension spring 7. The top of the connecting rotating column 6 is provided with a third connecting shaft 61. The first connecting rod 1 comprises: a supporting arm 11 and a connecting arm. One end of the connecting arm is connected with the middle of one end of the supporting arm 11. The other end of the connecting arm is provided with a first connecting shaft 12 extending upward and a second connecting shaft 13 extending downward. One end of the second connecting rod 2 is rotatably installed on the first connecting shaft 12. The other end of the second connecting rod 2 is rotatably installed on the third connecting shaft 61.

[0007] The limiting piece 4 is installed on the inner opening window sash, the limiting piece 4 is provided with a limiting sliding groove 41, the third connecting rod 3 is slidingly installed in the limiting sliding groove 41, one end of the third connecting rod 3 is rotatably installed on the second connecting shaft 13, and the other end of the supporting arm 11 and the other end of the third connecting rod 3 are connected through the compression spring 5.

[0008] The inner opening window hidden anti-collision angle bead structure, wherein the inner wall of the limiting wall cylinder 82 is provided with a guide boss 81, the outer wall of the connecting rotating column 6 is provided with a guide boss sliding groove 62, and the guide boss 81 and the guide boss sliding groove 62 are matched.

[0009] The inner opening window hidden anti-collision angle bead structure, wherein the guide boss sliding groove 62 located on the outer wall of the connecting rotating column 6 is arranged in a circumferential direction and is inclined, and the guide boss 81 located on the inner wall of the limiting wall cylinder 82 is a spherical protruding structure.

[0010] The inner opening window hidden anti-collision angle bead structure, wherein the angle bead 84 is a U-shaped angle bead.

[0011] The inner opening window hidden anti-collision angle bead structure, wherein the material of the angle bead 84 is a deformable elastic material.

[0012] The inner opening window hidden anti-collision angle bead structure, wherein the bottom of the connecting rod rotating column 6 is provided with a first tension spring connecting point 63, the bottom of the limiting wall cylinder 82 is provided with a second tension spring connecting point 83, one end of the tension spring 7 is connected with the first tension spring connecting point 63, and the other end of the tension spring 7 is connected with the second tension spring connecting point 83.

[0013] The inner opening window hidden anti-collision angle bead structure, wherein the supporting arm 11 and the connecting rod connecting arm are perpendicular to each other.

[0014] The inner opening window hidden anti-collision angle bead structure, wherein one end of the second connecting rod 2 is provided with a first connecting groove 21 for being assembled on the first connecting shaft 12, and the other end of the second connecting rod 2 is provided with a second connecting groove 22 for being assembled on the third connecting shaft 61.

[0015] The inner opening window hidden anti-collision angle bead structure, wherein one end of the third connecting rod 3 is provided with a third connecting groove 31 for being assembled on the second connecting shaft 13.

[0016] The inner opening window hidden anti-collision angle bead structure, wherein the bottom of the other end of the supporting arm 11 is provided with a first compression spring connecting point 14, the other end of the third connecting rod 3 is provided with a second compression spring connecting point 32, one end of the compression spring 5 is connected with the first compression spring connecting point 14, and the other end of the compression spring 5 is connected with the second compression spring connecting point 32.

[0017] The utility model discloses a kind of hidden anti-collision corner structures of inside opening window, including the first component and the second component, the first component is connected with the second component, the first component is connected with the second component.

[0018] (1) in the utility model, the corner is adopted soft material, and the sliding structure of third connecting rod and limiting piece and the connecting rod transmission mechanism of third connecting rod, second connecting rod and connecting rotating column are formed, the whole around connecting rotation of driving rotation corner structure is realized, by increasing the compression spring and the extension spring for reset, the inner opening window corner structure that can be opened or closed with sash, automatically extend or hide is realized.

[0019] (2) in the utility model, the corner is adopted soft material, can realize the angle part of sash tight covering, can also be deformed and bear extrusion in the process of retraction, wait for the opening of sash next time, the corner is covered in the angle part of sash again, using the inner opening window corner structure of the utility model that can be opened or closed with sash, automatically extend or hide, under the premise that window appearance is not affected when sash is closed, when sash is opened, avoid user collision sash angle part, protect user and sash angle part from damage and damage. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the schematic diagram of the state of complete closure of the inside opening window suitable for the utility model.

[0021] Figure 2 It is the schematic diagram of the state of complete opening of the inside opening window suitable for the utility model.

[0022] Figure 3 It is the first component composition schematic diagram of the hidden anti-collision corner structure of the inside opening window of the utility model.

[0023] Figure 4 It is the second component composition schematic diagram of the hidden anti-collision corner structure of the inside opening window of the utility model.

[0024] Figure 5 It is the schematic diagram of the inside opening window hidden anti-collision corner structure of the utility model in sash closed, corner default hidden state and sash completely closed, corner rotation, recovery hidden state.

[0025] Figure 6 It is Figure 5 The structure schematic diagram of.

[0026] Figure 7 It is the schematic diagram of the inside opening window hidden anti-collision corner structure of the utility model in sash slightly open, corner downward extension state.

[0027] Figure 8 It is Figure 7 The structure schematic diagram of.

[0028] Figure 9 is a kind of inside opening window hidden anti-collision corner structure in the schematic diagram of the state of fan angle covering of window sash continues to open, corner rotates.

[0029] Figure 10 is Figure 9 Structure diagram.

[0030] Figure 11 is a kind of inside opening window hidden anti-collision corner structure in the schematic diagram of the state of most of window sash closing, corner is withdrawn upwards.

[0031] Figure 12 is Figure 11 Structure diagram.

[0032] In the drawing: 1, first connecting rod;2, second connecting rod;3, third connecting rod;4, limiting piece;5, compression spring;6, connecting rotating column;7, extension spring;8, rotating corner structure;11, support arm;12, first connecting shaft;13, second connecting shaft;14, first compression spring connecting point;21, first connecting slot;22, second connecting slot;31, third connecting slot;32, second compression spring connecting point;41, limiting sliding groove;61, third connecting shaft;62, guide boss slide;63, first extension spring connecting point;81, guide boss;82, limiting wall cylinder;83, second extension spring connecting point;84, corner. DETAILED DESCRIPTION

[0033] The utility model will be further described below in connection with the drawings and specific embodiment, but not as the limitation of the utility model.

[0034] Please refer to Figures 1 to 12 It shows a kind of inside opening window hidden anti-collision corner structure, wherein, including: first connecting rod 1, second connecting rod 2, third connecting rod 3, limiting piece 4, compression spring 5, connecting rotating column 6, extension spring 7 and rotating corner structure 8, rotating corner structure 8 includes: limiting wall cylinder 82 and corner 84, the end of corner 84 and the outer wall of limiting wall cylinder 82 are connected, when inside opening window sash is in half open and completely open state, corner 84 is used to cover the angle of window sash;

[0035] The connecting rotating column 6 is movably installed in the limiting wall cylinder 82, which is a cylinder structure with an open top side. The bottom of the connecting rotating column 6 and the bottom of the limiting wall cylinder 82 are connected by the extension spring 7. The top of the connecting rotating column 6 is provided with a third connecting shaft 61. The first connecting rod 1 comprises a support arm 11 and a connecting rod connecting arm. One end of the connecting rod connecting arm is connected to the middle of one end of the support arm 11. The other end of the connecting rod connecting arm is provided with a first connecting shaft 12 extending upward and a second connecting shaft 13 extending downward. One end of the second connecting rod 2 is rotatably installed on the first connecting shaft 12. The other end of the second connecting rod 2 is rotatably installed on the third connecting shaft 61.

[0036] The limiting member 4 is installed on the inner opening window sash. The limiting member 4 is provided with a limiting sliding groove 41. The third connecting rod 3 is slidably installed in the limiting sliding groove 41. One end of the third connecting rod 3 is rotatably installed on the second connecting shaft 13. The other end of the support arm 11 is connected to the other end of the third connecting rod 3 by the compression spring 5.

[0037] Further, in a preferred embodiment, the inner wall of the limiting wall cylinder 82 is provided with a guide boss 81. The outer wall of the connecting rotating column 6 is provided with a guide boss sliding way 62. The guide boss 81 and the guide boss sliding way 62 are matched.

[0038] Further, in a preferred embodiment, the guide boss sliding way 62 located on the outer wall of the connecting rotating column 6 is arranged in a circumferential direction. The guide boss 81 located on the inner wall of the limiting wall cylinder 82 is a spherical protruding structure.

[0039] Further, in a preferred embodiment, the corner guard 84 is a U-shaped corner guard.

[0040] Further, in a preferred embodiment, the material of the corner guard 84 is a deformable elastic material.

[0041] Further, in a preferred embodiment, the bottom of the connecting rotating column 6 is provided with a first extension spring connecting point 63. The bottom of the limiting wall cylinder 82 is provided with a second extension spring connecting point 83. One end of the extension spring 7 is connected to the first extension spring connecting point 63. The other end of the extension spring 7 is connected to the second extension spring connecting point 83.

[0042] Further, in a preferred embodiment, the support arm 11 and the connecting rod connecting arm are perpendicular to each other.

[0043] Further, in a preferred embodiment, one end of the second connecting rod 2 is provided with a first connecting groove 21 for assembly on the first connecting shaft 12. The other end of the second connecting rod 2 is provided with a second connecting groove 22 for assembly on the third connecting shaft 61.

[0044] Further, in a preferred embodiment, one end of the third connecting rod 3 is provided with a third connecting groove 31 for assembly on the second connecting shaft 13.

[0045] Further, in a preferred embodiment, the other end of the support arm 11 is provided with a first compression spring connecting point 14; the other end of the third connecting rod 3 is provided with a second compression spring connecting point 32, one end of the compression spring 5 is connected with the first compression spring connecting point 14, and the other end of the compression spring 5 is connected with the second compression spring connecting point 32.

[0046] The above is only a preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application.

[0047] The present application further has the following implementation based on the above:

[0048] In a further embodiment of the present application, the present application designs an inner opening window corner structure which can be opened or closed with the window sash, and automatically extends or hides, can ensure that the user avoids colliding with the corner part of the window sash when the window sash is opened, and protects the user and the corner part of the window sash from being damaged and damaged under the premise of not affecting the appearance of the window body when the window sash is closed.

[0049] In a further embodiment of the present application, the structure is installed: the first connecting rod 1 is connected with the first connecting groove 21 on the second connecting rod 2 and the third connecting groove 31 on the third connecting rod 3 through the first connecting shaft 12 and the second connecting shaft 13 respectively; the third connecting rod 3 can only slide through the limiting sliding groove 41 in the limiting piece 4; the limiting piece 4 is installed on the inner opening window sash, and the displacement direction and position of the third connecting rod 3 are limited, and then all other structures connected with the third connecting rod 3 are limited to move with the window sash; the two ends of the compression spring 5 are connected with the first compression spring connecting point 14 and the second compression spring connecting point 32 respectively; the connecting rotating column 6 is connected with the second connecting groove 22 on the second connecting rod 2 through the third connecting shaft 61; the third connecting shaft 61 is eccentrically arranged, and the connecting rotating column 6 is installed in the limiting wall cylinder 82; the two ends of the stretching spring 7 are connected with the first stretching spring connecting point 63 and the second stretching spring connecting point 83 respectively; the guide boss 81 on the rotating corner structure 8 can drive the rotating corner structure 8 to slide and rotate through the guide boss sliding way 62, and the limiting wall cylinder 82 can limit the sliding direction. The corner 84 is a soft corner material.

[0050] In a further embodiment of the present application, the working principle is that when the window sash is closed, the corner 84 will be hidden in the hardware installation space between the window sash and the window frame, because the corner 84 adopts a soft material, which can not only have a buffering effect on collision, but also can be deformed to adapt to a smaller accommodation space under extrusion. At this time, the support arm 11 is in contact with and extruded by the frame body, and the compression spring 5 is in a compressed state. At this time, the stretching spring 7 is in a default state, which can ensure that the connecting rotating column 6 will not slide down due to gravity, and is completely accommodated in the rotating corner structure 8.

[0051] In further embodiments of the utility model, when the sash is in the closed state, as shown in Figure 5 and Figure 6 When the sash changes from the closed state to the slightly open state, the supporting arm 11 first separates from the frame part and moves in the clockwise direction by a small angle. Due to the limitation of the limiting sliding groove 41, the second connecting rod 2 and the third connecting rod 3 are driven to move horizontally upward. The second connecting rod 2 drives the connecting rotating column 6 to rotate counterclockwise by a small angle along the axis. Due to the limitation of the guide boss sliding way 62, the rotation of the connecting rotating column 6 drives the rotating corner structure 8 to move vertically downward, and the tensile spring 7 changes from the tensile state to the default state. The force provided by the compression spring 5 when recovering from the compressed state is much greater than the tensile force of the tensile spring 7, so that the tensile spring 7 can be kept in the tensile state. At this time, the corner 84 extends out of the hardware installation space, and the lower part reaches the same plane as the lower side of the sash corner. When the sash is in the slightly open state, as shown in Figure 7 and Figure 8 .

[0052] In further embodiments of the utility model, when the sash continues to open from the slightly open state, the supporting arm 11 completely separates from the frame and moves in the clockwise direction by a large angle. Due to the limitation of the limiting sliding groove 41, the second connecting rod 2 and the third connecting rod 3 are driven to continue to move horizontally upward. The second connecting rod 2 drives the connecting rotating column 6 to continue to rotate counterclockwise by a large angle along the axis. Due to the limitation of the guide boss sliding way 62, the rotation of the connecting rotating column 6 drives the rotating corner structure 8 to rotate horizontally by the same angle. At this time, the corner 84 rotates out until completely covering the sash corner. When the sash is in the large-angle open state to the completely open state, as shown in Figure 9 and Figure 10 .

[0053] In further embodiments of the utility model, when the sash changes from the open state to the mostly closed state, the supporting arm 11 gradually contacts the frame and moves in the counterclockwise direction by a small angle. Due to the limitation of the limiting sliding groove 41, the second connecting rod 2 and the third connecting rod 3 are driven to move horizontally downward. The second connecting rod 2 drives the connecting rotating column 6 to rotate clockwise by a small angle along the axis. Due to the limitation of the guide boss sliding way 62 and the tensile spring 7 changing from the tensile state to the default state, the rotation of the connecting rotating column 6 drives the rotating corner structure 8 to move vertically upward. At this time, the corner 84 is withdrawn into the hardware installation space, and the sash is in the large-angle closed state, that is, the completely closed state, as shown in Figure 11 and Figure 12 .

[0054] In further embodiments of the utility model, when the sash continues from the mostly closed state to the completely closed state, the supporting arm 11 is in full contact with the frame and moves in a large angle counterclockwise. Due to the restriction of the limiting sliding groove 41, the second connecting rod 2 and the third connecting rod 3 continue to move horizontally downward. The second connecting rod 2 drives the connecting rotating column 6 to continue to rotate in a large angle clockwise along the axis. Due to the restriction of the guide boss sliding way 62, the rotation of the connecting rotating column 6 drives the rotating corner structure 8 to rotate horizontally in the same angle. At this time, the corner 84 is screwed into the hardware installation space, as shown in Figure 5 and Figure 6 .

[0055] In further embodiments of the utility model, when the sash continues from the mostly closed state to the mostly open state, the rotating corner structure 8 rotates forward and is wrapped around the corner of the sash, playing a function of preventing collision; when the sash is about to be closed, the rotating corner structure 8 rotates reversely and is retracted into the hardware installation space between the sash and the window frame. The corner 84 is made of soft material, which can not only buffer the collision, but also deform to adapt to the smaller accommodation space under the extrusion, and is suitable for various inward opening windows.

[0056] In further embodiments of the utility model, when the sash is in the closed state, the supporting arm 11 of the first connecting rod 1 abuts against the window frame. When the sash is converted from the closed state to the open state, the compression spring 5 in the compressed state pushes the first connecting rod 1 to rotate in the resetting process, pushes the third connecting rod 3 to slide in the limiting sliding groove 41, drives the second connecting rod 2 and the end of the first connecting shaft 12 to slide, and the other end of the second connecting rod 2 pushes the connecting rotating column 6 to rotate in the limiting wall cylinder 82. At this time, the sash is slightly opened. Due to the structure of the guide boss 81 and the guide boss sliding way 62, the guide boss 81 drives the limiting wall cylinder 82 to move downward and slide out along the guide boss sliding way 62 in the rotating process of the connecting rotating column 6. The tension spring 7 is in the stretched state. At this time, the opening angle of the sash is increased. The rotating column 6 continues to rotate. Due to the friction and the torsional force of the tension spring 7, the guide boss sliding way 62 drives the guide boss 81 to rotate at the same angular velocity, and further drives the rotating corner structure 8 to rotate and wrap around the corner of the sash.

[0057] In the further embodiment of the utility model, when the sash is turned from the open state to the closed state, the opening angle of the sash gradually decreases until the supporting arm 11 of the first connecting rod 1 abuts against the window frame, at this time, the opening angle of the sash continues to decrease, the window frame pushes the supporting arm 11 to compress the compression spring 5, the first connecting rod 1 will push the third connecting rod 3 to slide in the limiting sliding groove 41 in the rotating process, drive the second connecting rod 2 to slide at one end of the rotating connection with the first connecting shaft 12, the other end of the second connecting rod 2 will push the connecting rotating column 6 to rotate, under the action of the stretching spring 7, the guide boss 81 drives the limiting wall cylinder 82 to move upward and slide into along the guide boss slide 62, the opening angle of the sash continues to decrease, the rotating column 6 continues to rotate, due to the friction and the torsional force of the stretching spring 7, the guide boss slide 62 drives the guide boss 81 to rotate at the same angular velocity, further drive the rotating corner structure 8 to rotate and retract into the hardware installation space between the sash and the window frame.

[0058] In the further embodiment of the utility model, the corner protector 84 adopts soft material, which can tightly cover the corner of the sash and also can deform and bear extrusion in the retraction process, wait for the next opening of the sash, and the corner protector 84 covers the corner of the sash again, the inner opening window corner protector structure which can open or close with the sash, automatically extend or hide in the utility model can ensure that the sash is opened without affecting the appearance of the window body, and avoid the user from colliding with the corner of the sash, and protect the user and the corner of the sash from being damaged and broken.

[0059] In the further embodiment of the utility model, the corner protector 84 adopts soft material, the sliding structure composed of the third connecting rod 3 and the limiting piece 4 and the connecting rod transmission mechanism composed of the third connecting rod 3, the second connecting rod 2 and the connecting rotating column 6 are adopted, the whole driving rotating corner structure 8 is realized to rotate back and forth around the connecting rotating column 6, the compression spring 5 and the stretching spring 7 used for resetting are increased, and the inner opening window corner protector structure which can open or close with the sash, automatically extend or hide is realized.

[0060] In the further embodiment of the utility model, the guide boss slide 62 on the outer wall of the connecting rotating column 6 is arranged in the circumferential direction and is inclined, as shown in Figure 4 In the further embodiment of the utility model, the guide boss slide 62 on the outer wall of the connecting rotating column 6 is arranged in the circumferential direction and is inclined, as shown in

[0061] The above merely describes preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. For those skilled in the art, it should be understood that any equivalent substitutions and obvious changes made according to the content of the present application and drawings should be included in the protection scope of the present application.

Claims

1. An in-swinging concealed crash corner structure, characterized in that, The utility model relates to a kind of window opening and closing device, including: first connecting rod (1), second connecting rod (2), third connecting rod (3), limiting piece (4), compression spring (5), connecting rotating column (6), tension spring (7) and rotating corner guard structure (8), rotating corner guard structure (8) includes: limiting wall cylinder (82) and corner guard (84), the end of corner guard (84) and the outer wall of limiting wall cylinder (82) are connected, when inside open window sash is in half open and completely open state, corner guard (84) is used to cover window sash corner portion; Connecting rotating column (6) is movably installed in limiting wall cylinder (82), limiting wall cylinder (82) is the cylinder structure of top side opening, the bottom of connecting rod rotating column (6) and the bottom of limiting wall cylinder (82) are connected by tension spring (7);The top of connecting rod rotating column (6) is equipped with third connecting shaft (61), first connecting rod (1) includes: support arm (11) and connecting rod connecting arm, one end of connecting rod connecting arm and the middle of one end of support arm (11) are connected, the other end of connecting rod connecting arm is equipped with the first connecting shaft (12) extending upwards and the second connecting shaft (13) extending downwards, one end of second connecting rod (2) is rotatably installed on first connecting shaft (12), the other end of second connecting rod (2) is rotatably installed on third connecting shaft (61); Limiting piece (4) is installed on inside open window sash, limiting piece (4) is equipped with limiting sliding slot (41), third connecting rod (3) is slidably installed in limiting sliding slot (41), one end of third connecting rod (3) is rotatably installed on second connecting shaft (13), the other end of support arm (11) bottom and the other end of third connecting rod (3) are connected by compression spring (5). The inner wall of limiting wall cylinder (82) is equipped with guide boss (81), the outer wall of connecting rotating column (6) is equipped with guide boss slide (62), the guide boss (81) and the guide boss slide (62) are matched.

2. The inside-opening concealed crash corner structure according to claim 1, wherein The guide boss slide (62) on the outer wall of connecting rotating column (6) is arranged along its circumferential direction, and the guide boss (81) on the inner wall of limiting wall cylinder (82) is a spherical protruding structure.

3. The inside-opening concealed crash corner structure according to claim 2, wherein The corner guard (84) is a U-shaped corner guard.

4. The inside-opening concealed crash corner structure according to claim 1, wherein The corner guard (84) is made of a deformable elastic material.

5. The inside-opening concealed crash corner structure according to claim 4, wherein The bottom of the connecting rod rotating column (6) is provided with a first tension spring connecting point (63), the bottom of the limiting wall cylinder (82) is provided with a second tension spring connecting point (83), one end of the tension spring (7) is connected to the first tension spring connecting point (63), and the other end of the tension spring (7) is connected to the second tension spring connecting point (83).

6. The inside-opening concealed crash corner structure according to claim 1, wherein The support arm (11) and the connecting rod connecting arm are perpendicular to each other.

7. The inside-opening concealed crash corner structure according to claim 1, wherein One end of the second connecting rod (2) is provided with a first connecting groove (21) for assembly on the first connecting shaft (12), and the other end of the second connecting rod (2) is provided with a second connecting groove (22) for assembly on the third connecting shaft (61).

8. The inside-opening concealed crash corner structure according to claim 1, wherein One end of the third connecting rod (3) is provided with a third connecting groove (31) for assembly on the second connecting shaft (13).

9. The inside-opening concealed crash corner structure according to claim 1, wherein ​ 10. The inside-opening concealed crash corner structure according to claim 1, wherein The other end bottom of the support arm (11) is provided with a first compression spring connecting point (14); the other end of the third connecting rod (3) is provided with a second compression spring connecting point (32), one end of the compression spring (5) is connected with the first compression spring connecting point (14), and the other end of the compression spring (5) is connected with the second compression spring connecting point (32).

Images