Flip mechanism and sunshade curtain assembly

Abstract

The invention provides a cover turning mechanism and a sunshade curtain assembly, and belongs to the technical field of automotive parts. The turning cover is rotatably mounted on the base, one of a screw rod and a screw sleeve is fixed in the circumferential direction of the turning cover, and one of the screw rod and the screw sleeve is coaxial with a rotating shaft of the turning cover; the linkage piece is installed on the base in a sliding mode, the sliding direction of the linkage piece is consistent with the axial direction of one of the screw rod and the screw sleeve, the linkage piece is provided with a stress block and the other one of the screw rod and the screw sleeve, and the screw rod is in threaded connection with the screw sleeve; the device has the beneficial effects that linear motion of the linkage piece can be converted into closing motion of the flip cover through the thread transmission principle, it means that the displacement of the linkage piece can be controlled through a certain section of specific stroke in the descending process of the edge covering plate, then the closing motion of the flip cover is controlled, and on the basis that closing of the flip cover is accurately controlled, the closing precision of the flip cover is improved. And the problem that the flip cover is damaged due to excessive closing is effectively prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle parts, and relates to a flip mechanism and a sunshade assembly. Background Art

[0002] Some vehicle doors are equipped with liftable sunshades, which can be extended and retracted through a lifting device. Such sunshades generally cooperate with a flip mechanism; that is, an opening is reserved below the window, and a flip mechanism is provided at the opening. Before the curtain rises and passes through the opening, the flip automatically opens; after the curtain is retracted, the flip automatically covers the opening to prevent dust or debris from entering the space below the window.

[0003] In the existing structure, an elastic member such as a torsion spring is usually used to apply a force to the flip to open it, so that the flip has a tendency to open automatically; and the closing of the flip is achieved by the downward movement of the curtain.

[0004] In the prior art, the flip and the edge board of the sunshade (located at the top of the curtain) are linked by a gear-rack structure. The rack on the edge board can mesh with the gear on the flip, and as the edge board descends, the flip gradually closes.

[0005] However, this design has some deficiencies: Since the stroke position of the edge board and the angular position of the flip are strictly corresponding, the closing position of the flip completely depends on the precise stop position of the edge board. If the edge board does not reach the set position, the flip cannot be completely closed, and there will be a gap at the opening; if the edge board exceeds the set position, the flip may be damaged due to over-closing. Summary of the Invention

[0006] The object of the present invention is to address the above problems existing in the prior art, and propose a flip mechanism and a sunshade assembly.

[0007] The object of the present invention can be achieved by the following technical solutions: A flip mechanism, comprising:

[0008] A base;

[0009] A flip, the flip is rotatably mounted on the base, one of a screw rod and a screw sleeve is circumferentially fixed to the flip, and one of the screw rod and the screw sleeve is coaxially arranged with the rotation axis of the flip;

[0010] A linkage member, the linkage member is slidably mounted on the base, the sliding direction of the linkage member is the same as the axial direction of one of the screw rod and the screw sleeve, the linkage member is provided with a force-receiving block and the other of the screw rod and the screw sleeve, and the screw rod and the screw sleeve are threadedly connected;

[0011] The linear motion of the linkage member is converted into the rotational motion of the flip cover through the screw sleeve and the screw rod, and a continuous corresponding relationship is formed between the stroke position of the linkage member and the angular position of the flip cover.

[0012] Preferably, the angular position of the flip cover includes an open position and a closed position, the open position and the closed position are respectively located at both ends of the rotational stroke of the flip cover, the stroke position of the linkage member includes a starting position and an end position, and the starting position and the end position are respectively located at both ends of the sliding stroke of the linkage member; when the flip cover is in the open position, the linkage member is in the starting position; when the linkage member is in the end position, the flip cover is in the closed position.

[0013] Preferably, the side surface of the force-bearing block includes a force-bearing inclined surface portion and a first vertical surface portion, and the first vertical surface portion is adjacent to the force-bearing inclined surface portion.

[0014] Preferably, the base is provided with a backstop block, the backstop block is adjacent to the force-bearing block in the sliding direction of the linkage member, and a gap is reserved between the backstop block and the force-bearing block.

[0015] Preferably, one of the linkage member and the base is provided with a sliding guide rod and the other is provided with a guiding and limiting groove, the sliding guide rod is slidably inserted into the guiding and limiting groove, and the sliding guide rod is circumferentially fixedly connected with the guiding and limiting groove.

[0016] Preferably, the flip cover is provided with a mounting seat, the mounting seat is provided with a mounting hole, a part of the screw rod is inserted into the mounting hole, and the screw rod is circumferentially fixedly connected with the mounting hole.

[0017] Preferably, the mounting seat is provided with an adjusting bolt, and the adjusting bolt is detachably connected with the screw rod; when the adjusting bolt is connected with the screw rod, the axial freedom degree of the screw rod in the mounting hole is restricted; when the adjusting bolt is separated from the screw rod, the screw rod is allowed to be axially adjusted in the mounting hole.

[0018] Preferably, the flip cover and the base are hinged by a hinge shaft, a torsion spring is sleeved on the hinge shaft, and two ends of the torsion spring are respectively connected with the flip cover and the base, and the torsion spring always applies a torsion force to the flip cover to make it tend to the open position.

[0019] A sunshade assembly includes the flip cover mechanism as described above, and further includes a curtain frame, a curtain cloth and a edging board, the curtain frame is connected with the base, the curtain cloth is liftably mounted on the curtain frame, the edging board is mounted on the top end of the curtain cloth, and the edging board is provided with a driving block, and the side surface of the driving block includes a driving inclined surface portion;

[0020] The stroke positions of the edge wrapping plate include a first position and a second position, and a linkage interval is formed between the first position and the second position; when the edge wrapping plate is located in the linkage interval, the driving inclined surface portion abuts against the force receiving inclined surface portion so that the edge wrapping plate is linked to the linkage member, and the downward movement of the edge wrapping plate in the linkage interval is converted into the linear movement of the linkage member through the driving block and the force receiving block.

[0021] Preferably, the side surface of the driving block further includes a second vertical surface portion, and the second vertical surface portion is adjacent to the driving inclined surface portion;

[0022] The stroke positions of the edge wrapping plate further include a retraction limit position, the first position, the second position, and the retraction limit position are arranged in sequence along the downward direction of the edge wrapping plate, and an idle stroke interval is formed between the second position and the retraction limit position; when the edge wrapping plate is located in the idle stroke interval, the driving inclined surface portion and the force receiving inclined surface portion are separated, the first vertical surface portion and the second vertical surface portion abut against each other, the edge wrapping plate and the linkage member are not linked, and the downward movement of the edge wrapping plate in the idle stroke interval does not cause the linear movement of the linkage member.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. The linear movement of the linkage member can be converted into the closing movement of the flip cover through the principle of screw drive, which means that the displacement of the linkage member can be controlled by a certain specific stroke interval during the downward movement of the edge wrapping plate, and then the closing movement of the flip cover can be controlled. On the basis of accurately controlling the closing of the flip cover, the problem of damage to the flip cover caused by excessive closing can be effectively prevented.

[0025] 2. The flip cover mechanism of the present invention adopts an indirect linkage motion logic. The edge wrapping plate is not directly linked to the flip cover, but is linked to the flip cover through the linkage member. Only a small section of the entire downward stroke of the edge wrapping plate is selected as a specific stroke interval. The linkage member and the flip cover always maintain a linkage relationship. The displacement stroke of the linkage member itself is only related to the specific stroke interval of the edge wrapping plate. The edge wrapping plate only needs to push the linkage member to the end position during the downward movement to close the flip cover, and there is no need to strictly correspond the stroke of the edge wrapping plate to the full stroke of the flip cover.

[0026] 3. The force-bearing inclined surface is designed to contact and transmit force to the driving block of the edging plate. When the edging plate descends in the linkage range, the driving inclined surface on the driving block contacts and connects with the force-bearing inclined surface. This inclined surface drive design can convert the vertical movement of the edging plate into the horizontal sliding movement of the linkage. The first vertical surface is a surface set along the lifting direction of the edging plate. When the edging plate moves in the idle stroke range or reaches the retraction limit position, the edging plate fits with the first vertical surface, which can prevent the force-bearing part from retreating, thereby limiting the linkage at the end position and ensuring that the flap remains closed.

[0027] 4. When assembling the linkage and flap, the flap can be rotated to the open position, and then the screw and the screw sleeve are connected together, ensuring that part of the screw is aligned with the mounting hole, and then the linkage is pushed to the starting position. At this time, part of the screw is inserted into the mounting hole to a certain depth, and finally the adjusting bolt is screwed in to fix the screw and the mounting hole axially. When the open position of the flap corresponds to the starting position of the linkage, when the linkage slides to the end position, the flap can be accurately rotated to the closed position, thereby reducing the difficulty of assembly while ensuring assembly accuracy.

[0028] 5. In the idle stroke range, although the edge plate continues to descend, no force is transmitted to the linkage, so it will not cause linear motion of the linkage or any rotation of the flap. The edge plate can smoothly descend to the retraction limit position in the idle stroke range, so that the curtain can be completely retracted into the curtain frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the flip cover mechanism of the present invention.

[0030] Figure 2 It is a schematic diagram of the flip cover mechanism and the edge plate of the present invention.

[0031] Figure 3 It is a cross-sectional schematic diagram of the flip cover mechanism of the present invention.

[0032] Figure 4 It is a schematic diagram of the connection relationship between the screw and the screw sleeve of the present invention.

[0033] Figure 5 It is a schematic diagram of the positions of the edge plate of the present invention and the force-bearing block when the edge plate is located in the linkage section.

[0034] Figure 6 It is a schematic diagram of the positions of the edge plate of the present invention and the force-bearing block when the edge plate is located in the idle stroke interval.

[0035] Figure 7 It is a partial schematic diagram of the edge board of the present invention.

[0036] Figure 8Schematic diagram of the state of the sunshade assembly when the flip cover of the present invention is in the open position.

[0037] Figure 9 Schematic diagram of the state of the sunshade assembly when the flip cover of the present invention is in the closed position.

[0038] Figure 10 Schematic diagram of the state of the cover plate when the edge wrapping plate of the present invention is at the retraction limit position.

[0039] Figure 11 Schematic diagram of the state of the sunshade assembly when the curtain cloth of the present invention is raised.

[0040] In the figure, 100, base; 110, anti-retraction stop; 120, sliding guide rod; 130, hinge shaft; 131, torsion spring; 200, flip cover; 210, screw; 220, mounting seat; 221, mounting hole; 222, adjusting bolt; 300, linkage member; 310, nut sleeve; 320, force-receiving block; 321, force-receiving inclined surface; 322, first vertical surface; 330, guiding and limiting groove; 400, curtain frame; 500, curtain cloth; 600, edge wrapping plate; 610, driving block; 611, driving inclined surface; 612, second vertical surface. Detailed implementation mode

[0041] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0042] As Figures 1 to 11 shown, a flip cover mechanism includes: a base 100; a flip cover 200, the flip cover 200 is rotatably mounted on the base 100, one of a screw 210 and a nut sleeve 310 is circumferentially fixed to the flip cover 200, and one of the screw 210 and the nut sleeve 310 is coaxially arranged with the rotation axis of the flip cover 200; a linkage member 300, the linkage member 300 is slidably mounted on the base 100, the sliding direction of the linkage member 300 is the same as the axial direction of one of the screw 210 and the nut sleeve 310, the linkage member 300 is provided with a force-receiving block 320 and the other of the screw 210 and the nut sleeve 310, and the screw 210 and the nut sleeve 310 are threadedly connected; the linear motion of the linkage member 300 is converted into the rotational motion of the flip cover 200 through the nut sleeve 310 and the screw 210, and a continuous corresponding relationship is formed between the stroke position of the linkage member 300 and the angular position of the flip cover 200.

[0043] Embodiment 1:

[0044] In the first embodiment, a screw rod 210 is circumferentially fixed on the flip cover 200, and a screw sleeve 310 is provided on the linkage member 300. When the linkage member 300 moves linearly, the screw sleeve 310 moves axially along the screw rod 210. The screw rod 210 is driven to rotate through the threaded structure. When the screw rod 210 rotates, the flip cover 200 is driven to rotate, thereby realizing the automatic closing of the flip cover 200.

[0045] Second Embodiment:

[0046] In the second embodiment, a screw sleeve 310 is circumferentially fixed on the flip cover 200, and a screw rod 210 is provided on the linkage member 300. When the linkage member 300 moves linearly, the screw rod 210 moves axially along the screw sleeve 310. The screw sleeve 310 is driven to rotate through the threaded structure, thereby realizing the automatic closing of the flip cover 200.

[0047] The first embodiment and the second embodiment respectively show two specific layouts of the screw rod 210 and the screw sleeve 310. The principles of both are the same, that is, the linear motion of one of the screw rod 210 and the screw sleeve 310 is converted into the rotational motion of the other, and then the flip cover 200 is driven to close through the linear motion of the linkage member 300.

[0048] The closing principle of this flip cover mechanism is as follows: The downward movement of the edge - wrapping plate 600 within a specific stroke interval (i.e., the linkage interval) can be converted into the sliding motion of the linkage member 300 through the force - receiving block 320. The linkage member 300 and the flip cover 200 are linked through a threaded structure, and any stroke position of the linkage member 300 corresponds to the corresponding angular position of the flip cover 200. Therefore, when the linkage member 300 slides, it drives the flip cover 200 to rotate, thereby realizing the automatic closing of the flip cover 200.

[0049] The specific working process of the flip cover mechanism is as follows: When the curtain cloth 500 of the sunshade curtain descends, the edge - wrapping plate 600 located at the top of the curtain cloth 500 descends accordingly. When the edge - wrapping plate 600 descends to a specific stroke interval, the edge - wrapping plate 600 is linked to the force - receiving block 320. As the edge - wrapping plate 600 continues to descend, it pushes the linkage member 300 to slide through the force - receiving block 320, causing the flip cover 200 to rotate. As the edge - wrapping plate 600 continues to descend within the specific stroke interval, the displacement of the linkage member 300 increases, and the flip cover 200 gradually closes. When the flip cover 200 is completely closed, the edge - wrapping plate 600 just leaves this specific stroke interval. At this time, the linkage relationship between the edge - wrapping plate 600 and the force - receiving block 320 is released, and the linkage member 300 accurately stays at this position, ensuring that the flip cover 200 remains in the closed position. Then the edge - wrapping plate 600 continues to descend. When the curtain cloth 500 is completely retracted, the edge - wrapping plate 600 stays at the retraction limit position. During this process, the descent of the edge - wrapping plate 600 will not drive the flip cover 200 to move.

[0050] This flip cover mechanism adopts an indirect linkage motion logic. The edge wrapping plate 600 is not directly linked to the flip cover 200, but is linked to the flip cover 200 through the linkage member 300. Only a small section of the entire descending stroke of the edge wrapping plate 600 is selected as a specific stroke interval. The linkage member 300 and the flip cover 200 always maintain a linkage relationship. The displacement stroke of the linkage member 300 itself is only related to the specific stroke interval of the edge wrapping plate 600. The edge wrapping plate 600 only needs to push the linkage member 300 to the end position during the descending motion to close the flip cover 200, without having to strictly correspond the stroke of the edge wrapping plate 600 to the full stroke of the flip cover 200.

[0051] It should be emphasized that by limiting the edge wrapping plate 600 to drive the linkage member 300 only in a specific stroke interval, the forced corresponding relationship between the full stroke of the edge wrapping plate 600 and the action of the flip cover 200 is successfully eliminated. This design enables the edge wrapping plate 600's descending action not to continue to affect the flip cover 200 after the flip cover 200 is closed, thereby optimizing the motion logic of the flip cover mechanism and making it more flexible and free.

[0052] The linear motion of the linkage member 300 can be converted into the closing motion of the flip cover 200 through the principle of screw drive. This means that the displacement of the linkage member 300 can be controlled by a specific stroke interval during the descending process of the edge wrapping plate 600, and then the closing motion of the flip cover 200 can be controlled. On the basis of accurately controlling the closing of the flip cover 200, the problem of damage to the flip cover 200 caused by excessive closing can be effectively prevented.

[0053] On the basis of the above embodiment, the angular positions of the flip cover 200 include the open position and the closed position. The open position and the closed position are respectively located at both ends of the rotation stroke of the flip cover 200. The stroke positions of the linkage member 300 include the starting position and the end position. The starting position and the end position are respectively located at both ends of the sliding stroke of the linkage member 300; when the flip cover 200 is in the open position, the linkage member 300 is in the starting position; when the linkage member 300 is in the end position, the flip cover 200 is in the closed position.

[0054] In this embodiment, the flip cover 200 and the linkage member 300 are always linked through a screw structure. When the linkage member 300 moves from the starting position to the end position, the flip cover 200 rotates from the open position to the closed position.

[0055] Because the stroke limit of the linkage member 300 is the end position, during the descending process of the edge wrapping plate 600, it can at most push the linkage member 300 to the end position. Since the linkage member 300 cannot cross the end position, the flip cover 200 will not be in a long-term stressed state due to excessive closing. After the linkage member 300 reaches the end position, the edge wrapping plate 600 releases the linkage relationship with the linkage member 300, so the edge wrapping plate 600 can continue to descend.

[0056] As Figures 1 to 7 shown, on the basis of the above-described embodiment, the side surface of the force-receiving block 320 includes a force-receiving inclined surface portion 321 and a first vertical surface portion 322, and the first vertical surface portion 322 is adjacent to the force-receiving inclined surface portion 321.

[0057] The design purpose of the force-receiving inclined surface portion 321 is to contact and transmit force with the driving block 610 of the edge-wrapping plate 600. When the edge-wrapping plate 600 descends within the linkage interval, the driving inclined surface portion 611 on the driving block 610 abuts and connects with the force-receiving inclined surface portion 321. This inclined surface driving design can convert the vertical movement of the edge-wrapping plate 600 into the horizontal sliding movement of the linkage member 300.

[0058] The first vertical surface portion 322 is a surface arranged along the ascending and descending direction of the edge-wrapping plate 600. When the edge-wrapping plate 600 moves within the idle stroke interval or reaches the retraction limit position, the edge-wrapping plate 600 fits with the first vertical surface portion 322, which can prevent the force-receiving portion from retracting, thereby restricting the linkage member 300 at the end position and ensuring that the flip cover 200 remains in the closed state. In addition, when the edge-wrapping plate 600 is within the idle stroke interval, since it is the first vertical surface portion 322 that contacts the edge-wrapping plate 600, the descending movement of the edge-wrapping plate 600 cannot be converted into the linear movement of the linkage member 300, ensuring that the edge-wrapping plate 600 and the linkage member 300 are in a non-linked state.

[0059] As Figures 1 to 7 shown, on the basis of the above-described embodiment, the base 100 is provided with a backstop block 110. The backstop block 110 is adjacent to the force-receiving block 320 in the sliding direction of the linkage member 300, and a gap is reserved between the backstop block 110 and the force-receiving block 320.

[0060] The gap reserved between the backstop block 110 and the force-receiving block 320 is for the driving block 610 on the edge-wrapping plate 600 to insert. When the edge-wrapping plate 600 is within the linkage interval, one side of the driving block 610 is linked and connected with the force-receiving block 320, and the other side of the driving block 610 is abutted by the backstop block 110. Therefore, when the driving block 610 pushes the linkage member 300 to slide through the descending movement, the backstop block 110 can abut against the driving block 610 to prevent it from retracting during the linkage process, ensuring that the driving block 610 remains stationary in the sliding direction (lateral direction) of the linkage member 300.

[0061] Preferably, the backstop block 110 is provided with a first guiding inclined surface portion, and the driving block 610 is provided with a second guiding inclined surface portion. When the driving block 610 descends and enters the linkage interval, the first guiding inclined surface and the second guiding inclined surface contact, thereby guiding the driving block 610 to the correct lateral position to avoid the driving block 610 from deviating.

[0062] It should be noted here that if there is a deviation in the lateral position of the driving block 610, it may abut against the anti-reverse block 110, resulting in jamming during descent. The guiding inclined surface portion can guide the driving block 610 to descend at the correct lateral position.

[0063] In addition, since the automatic closing of the flip cover 200 has extremely high requirements for the position accuracy of the linkage member 300, it is required that the driving block 610 descend at the correct lateral position. The design of the guiding inclined surface portion can guide the driving block 610 to the correct lateral position during the descent process, ensuring the accuracy of the driving block 610 in the lateral position.

[0064] As Figures 1 to 5 shown, on the basis of the above embodiment, one of the linkage member 300 and the base 100 is provided with a sliding guide rod 120 and the other is provided with a guiding limit groove 330. The sliding guide rod 120 is slidably inserted into the guiding limit groove 330, and the sliding guide rod 120 is circumferentially fixedly connected to the guiding limit groove 330.

[0065] The design of the sliding guide rod 120 and the guiding limit groove 330 ensures that the linkage member 300 can slide smoothly and accurately along a predetermined trajectory. In the actual structure, the guiding limit groove 330 is designed as a square hole structure, and the sliding guide rod 120 is designed as a square rod structure. Through this non-circular cross-section design, the sliding guide rod 120 is circumferentially fixedly connected to the guiding limit groove 330.

[0066] As Figures 1 to 4 shown, on the basis of the first embodiment, the flip cover 200 is provided with a mounting seat 220. The mounting seat 220 is provided with a mounting hole 221. A part of the screw rod 210 is inserted into the mounting hole 221, and the screw rod 210 is circumferentially fixedly connected to the mounting hole 221.

[0067] It should be supplemented and explained here that the mounting hole 221 is a non-circular hole structure, and the cross-section shape of a part of the screw rod 210 is the same as that of the mounting hole 221. Therefore, a part of the screw rod 210 can be circumferentially fixedly connected to the mounting hole 221. When the screw sleeve 310 moves along the axial direction of the screw rod 210, it can drive the screw rod 210 to rotate. Since the screw rod 210 is circumferentially fixedly connected to the mounting seat 220, it can drive the flip cover 200 to rotate.

[0068] On the basis of the above embodiment, the mounting seat 220 is provided with an adjusting bolt 222. The adjusting bolt 222 is detachably connected to the screw rod 210; when the adjusting bolt 222 is connected to the screw rod 210, it restricts the axial freedom degree of the screw rod 210 in the mounting hole 221; when the adjusting bolt 222 is separated from the screw rod 210, the screw rod 210 is allowed to be axially adjusted in the mounting hole 221.

[0069] In order to ensure that the closing position of the flip cover 200 precisely corresponds to the end position of the linkage 300, in this embodiment, the screw rod 210 is specifically designed to be axially adjustable. By axially adjusting the screw rod 210 in the mounting hole 221, the positions of the flip cover 200 and the linkage 300 are matched, reducing the assembly difficulty.

[0070] Specifically, if the screw rod 210 is integrated with the flip cover 200, due to dimensional errors in the components, it is difficult to control the positional correspondence between the linkage 300 and the flap. For example, when the linkage 300 has reached the end position, but due to the matching accuracy or position of the screw sleeve 310 and the screw rod 210, the flip cover 200 does not reach the closed position or is in an over-closed position, which will affect the use of this product.

[0071] When assembling the linkage 300 and the flip cover 200, the flip cover 200 can be rotated to the open position, then the screw rod 210 is connected to the screw sleeve 310, ensuring that part of the screw rod 210 is aligned with the mounting hole 221. Then the linkage 300 is pushed to the starting position. At this time, part of the screw rod 210 is inserted into the mounting hole 221 to a certain depth, and finally the adjusting bolt 222 is screwed in to axially fix the screw rod 210 with the mounting hole 221. When the open position of the flip cover 200 corresponds to the starting position of the linkage 300, when the linkage 300 slides to the end position, the flip cover 200 can accurately rotate to the closed position, thereby reducing the assembly difficulty on the basis of ensuring the assembly accuracy.

[0072] As Figure 1 shown, on the basis of the above embodiment, the flip cover 200 and the base 100 are hinged by a hinge shaft 130. A torsion spring 131 is sleeved on the hinge shaft 130, and both ends of the torsion spring 131 are connected to the flip cover 200 and the base 100 respectively. The torsion spring 131 always applies a torsion force to the flip cover 200 to make it tend to the open position.

[0073] The automatic opening principle of the flip cover mechanism is as follows: When the edge wrapping board 600 rises upward in the linkage interval, the flap has a tendency to open under the action of the torsion spring 131, which causes the screw rod 210 to have a tendency to rotate, and then causes the linkage 300 to slide to the starting position, and the flip cover 200 gradually opens. When the flip cover 200 is in the open position, it remains open under the torsion force of the torsion spring 131.

[0074] As Figures 1 to 11 shown, a sunshade curtain assembly includes a flip cover mechanism, and also includes a curtain frame 400, a curtain cloth 500, and an edge wrapping board 600. The curtain frame 400 is connected to the base 100. The curtain cloth 500 is installed on the curtain frame 400 in a liftable manner. The edge wrapping board 600 is installed at the top of the curtain cloth 500. The edge wrapping board 600 is provided with a driving block 610, and the side surface of the driving block 610 includes a driving inclined surface portion 611;

[0075] The travel position of the edging plate 600 includes a first position and a second position, and a linkage interval is formed between the first position and the second position; when the edging plate 600 is located in the linkage interval, the driving inclined portion 611 is abutted against the force-bearing inclined portion 321 to connect the edging plate 600 with the linkage member 300, and the descending movement of the edging plate 600 in the linkage interval is converted into a linear movement of the linkage member 300 through the driving block 610 and the force block 320.

[0076] The first position and the second position are actually two critical positions. When the edging plate 600 is in the first position, the bottom of the driving inclined surface 611 contacts the top of the force-bearing inclined surface 321; when the edging plate 600 is in the second position, the top of the driving inclined surface 611 contacts the bottom of the force-bearing inclined surface 321; when the edging plate 600 drops to the first position, it means that the driving block 610 is about to enter the linkage interval; when the edging plate 600 drops to the second position, it means that the driving block 610 is about to leave the linkage interval.

[0077] When the edging plate 600 is in the linkage interval, the driving inclined surface 611 and the force inclined surface 321 are in contact with each other, so as the edging plate 600 descends, the driving block 610 can push the force block 320 (linkage member 300) to slide, and the descending movement of the edging plate 600 in the linkage interval is converted into the sliding movement of the linkage member 300 through the principle of inclined surface driving.

[0078] The position of the linkage member 300 is controlled by the descending movement of the edge plate 600 in the linkage range, thereby accurately controlling the angular position of the flip cover 200. This design ensures that the flip cover 200 can start to close at the right time and can be completely closed without over-closing; since the travel limit of the linkage member 300 is limited, even if the edge plate 600 continues to descend, the flip cover 200 will not be damaged due to over-closing.

[0079] On the basis of the above embodiment, the side surface of the driving block 610 further includes a second vertical surface portion 612, and the second vertical surface portion 612 is adjacent to the driving inclined surface portion 611;

[0080] The stroke position of the edging plate 600 also includes a retraction limit position, and the first position, the second position and the retraction limit position are arranged in sequence along the descending direction of the edging plate 600, and an empty stroke interval is formed between the second position and the retraction limit position; when the edging plate 600 is located in the empty stroke interval, the driving inclined surface 611 and the force-bearing inclined surface 321 are separated, the first vertical surface 322 and the second vertical surface 612 are connected in abutment with each other, the edging plate 600 and the linkage part 300 are not connected in a linkage manner, and the descending movement of the edging plate 600 in the empty stroke interval does not cause the linkage part 300 to move in a straight line.

[0081] During the idle stroke interval, the driving inclined surface portion 611 is separated from the force-receiving inclined surface portion 321, and the force is no longer transmitted. The first vertical surface portion 322 and the second vertical surface portion 612 will abut and connect to restrict the backward movement of the force-receiving block 320 (linkage member 300), thereby restricting the linkage member 300 at the end position by physical abutment.

[0082] In principle, during the idle stroke interval, although the edge-wrapping plate 600 continues to descend, since no force is transmitted to the linkage member 300, it will not cause the linear movement of the linkage member 300 or any rotation of the flap 200. The edge-wrapping plate 600 can smoothly descend to the retraction limit position by using the idle stroke interval, enabling the curtain cloth 500 to be completely retracted into the curtain rack 400.

[0083] This design can not only automatically close the flap 200 when the edge-wrapping plate 600 descends, but also ensure that the curtain cloth 500 is completely retracted into the curtain rack 400, avoiding the complete binding of the descending stroke of the edge-wrapping plate 600 and the movement stroke of the flap 200.

[0084] Therefore, on the premise of ensuring that the curtain cloth 500 can be completely retracted into the curtain rack 400, the flap 200 of this sunshade assembly is exactly in the closed position. It eliminates the defects in the traditional design where the flap 200 cannot be completely closed or is over-closed due to the full-stroke linkage of the flap 200 and the edge-wrapping plate 600.

[0085] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0086] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature.

[0087] In the present invention, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited.

[0088] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A flip mechanism, characterized in that, Comprising: A base (100); A flip cover (200), the flip cover (200) is rotatably mounted on the base (100), one of a screw rod (210) and a screw sleeve (310) is circumferentially fixed to the flip cover (200), and one of the screw rod (210) and the screw sleeve (310) is coaxially arranged with the rotation axis of the flip cover (200); A linkage member (300), the linkage member (300) is slidably mounted on the base (100), the sliding direction of the linkage member (300) is the same as the axial direction of one of the screw rod (210) and the screw sleeve (310), the linkage member (300) is provided with a force-receiving block (320) and the other of the screw rod (210) and the screw sleeve (310), and the screw rod (210) and the screw sleeve (310) are threadedly connected; The linear motion of the linkage member (300) is converted into the rotational motion of the flip cover (200) through the screw sleeve (310) and the screw rod (210), and a continuous corresponding relationship is formed between the stroke position of the linkage member (300) and the angular position of the flip cover (200).

2. The flip mechanism according to claim 1, characterized in that: The angular position of the flip cover (200) includes an open position and a closed position, the open position and the closed position are respectively located at both ends of the rotation stroke of the flip cover (200), the stroke position of the linkage member (300) includes a starting position and an ending position, the starting position and the ending position are respectively located at both ends of the sliding stroke of the linkage member (300); when the flip cover (200) is in the open position, the linkage member (300) is in the starting position; when the linkage member (300) is in the ending position, the flip cover (200) is in the closed position.

3. The flip mechanism according to claim 1 or 2, characterized in that: The side surface of the force-receiving block (320) includes a force-receiving inclined surface portion (321) and a first vertical surface portion (322), and the first vertical surface portion (322) is adjacent to the force-receiving inclined surface portion (321).

4. The flip mechanism according to claim 3, wherein: The base (100) is provided with a backstop block (110), the backstop block (110) is adjacent to the force-receiving block (320) in the sliding direction of the linkage member (300), and a gap is reserved between the backstop block (110) and the force-receiving block (320).

5. The flip mechanism according to claim 1, characterized in that: One of the linkage member (300) and the base (100) is provided with a sliding guide rod (120) and the other is provided with a guiding and limiting groove (330), the sliding guide rod (120) is slidably inserted into the guiding and limiting groove (330), and the sliding guide rod (120) is circumferentially fixedly connected with the guiding and limiting groove (330).

6. The flip mechanism according to claim 1, characterized in that: The flip cover (200) is provided with a mounting seat (220), the mounting seat (220) is provided with a mounting hole (221), a part of the screw rod (210) is inserted into the mounting hole (221), and the screw rod (210) is circumferentially fixedly connected with the mounting hole (221).

7. The flip mechanism according to claim 6, wherein: The mounting base (220) is provided with an adjusting bolt (222), and the adjusting bolt (222) is detachably connected to the screw rod (210); when the adjusting bolt (222) is connected to the screw rod (210), the axial freedom degree of the screw rod (210) in the mounting hole (221) is restricted; when the adjusting bolt (222) is separated from the screw rod (210), the screw rod (210) is allowed to be axially adjusted in the mounting hole (221).

8. The flip mechanism according to claim 2, characterized in that: The flip cover (200) and the base (100) are hinged by a hinge shaft (130), a torsion spring (131) is sleeved on the hinge shaft (130), two ends of the torsion spring (131) are respectively connected to the flip cover (200) and the base (100), and the torsion spring (131) always applies a torsion force to the flip cover (200) to make it tend to the open position.

9. A sunshade assembly, characterized in that, Comprising the flip cover mechanism according to any one of claims 1 to 8, further comprising a curtain rack (400), a curtain cloth (500) and a edging plate (600), the curtain rack (400) is connected to the base (100), the curtain cloth (500) is liftably mounted on the curtain rack (400), the edging plate (600) is mounted at the top end of the curtain cloth (500), the edging plate (600) is provided with a driving block (610), and a side surface of the driving block (610) comprises a driving inclined surface part (611); The stroke positions of the edging plate (600) include a first position and a second position, and a linkage interval is formed between the first position and the second position; when the edging plate (600) is located in the linkage interval, the driving inclined surface part (611) is in contact connection with a force-receiving inclined surface part (321) so that the edging plate (600) is in linkage connection with the linkage member (300), and a downward movement of the edging plate (600) in the linkage interval is converted into a linear movement of the linkage member (300) through the driving block (610) and a force-receiving block (320).

10. A sunshade assembly according to claim 9, characterized in that: The side surface of the driving block (610) further comprises a second vertical surface part (612), and the second vertical surface part (612) is adjacent to the driving inclined surface part (611); The stroke positions of the edging plate (600) further include a retraction limit position, the first position, the second position and the retraction limit position are sequentially arranged along the downward direction of the edging plate (600), and an idle stroke interval is formed between the second position and the retraction limit position; when the edging plate (600) is located in the idle stroke interval, the driving inclined surface part (611) and the force-receiving inclined surface part (321) are separated, a first vertical surface part (322) and the second vertical surface part (612) are in contact connection, the edging plate (600) and the linkage member (300) are not in linkage connection, and a downward movement of the edging plate (600) in the idle stroke interval does not make the linkage member (300) move linearly.

Images