Flip mechanism and sunshade curtain assembly

Abstract

The utility model 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 utility model has the beneficial effects that the linear motion of the linkage piece can be converted into the closing motion of the flip cover through the thread transmission principle, which 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, and then the closing motion of the flip cover is controlled, so that the closing of the flip cover is controlled on the basis of accurately controlling the closing of the flip cover. And the problem that the flip cover is damaged due to excessive closing is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vehicle parts, and relates to a flip cover mechanism and a sunshade curtain assembly. BACKGROUND

[0002] Some vehicles are provided with a sunshade curtain that can be lifted, and the sunshade curtain can realize the extension and retraction of curtain cloth through a lifting device, and such a sunshade curtain is generally used in cooperation with a flip cover mechanism; that is, an opening is reserved below a vehicle window, and the opening is provided with a flip cover mechanism, and the flip cover is automatically opened before the curtain cloth is lifted and passes through the opening; after the curtain cloth is stored, the flip cover automatically covers the opening to prevent dust or sundries from entering the space below the vehicle window.

[0003] In the existing structure, a torsional spring or other elastic member is generally used to exert an opening force on the flip cover, so that the flip cover has a movement tendency of automatic opening; and the closing of the flip cover is realized through the downward movement of the curtain cloth.

[0004] In the prior art, the flip cover and the edge covering plate (located at the top end of the curtain cloth) of the sunshade curtain are connected through a gear and rack structure. The rack on the edge covering plate can engage with the gear on the flip cover, and the flip cover is gradually folded as the edge covering plate descends.

[0005] However, this design has some deficiencies: since the stroke position of the edge covering plate and the angle position of the flip cover are strictly corresponding, the closing position of the flip cover completely depends on the accurate stopping position of the edge covering plate. If the edge covering plate does not reach the set position, the flip cover cannot be completely closed, and a gap will be left in the opening; if the edge covering plate exceeds the set position, the flip cover may be damaged due to over-closing. INVENTION CONTENTS

[0006] The utility model aims at the above problems existing in the prior art, and provides a flip cover mechanism and a sunshade curtain assembly.

[0007] The utility model can achieve the purpose through the following technical scheme: a flip cover mechanism comprises:

[0008] a base;

[0009] a flip cover rotatably installed on the base, one of a screw rod and a screw sleeve being fixed on the circumference of the flip cover, and one of the screw rod and the screw sleeve being coaxially arranged with the rotation shaft of the flip cover;

[0010] a linkage member slidably installed on the base, the sliding direction of the linkage member being consistent with the axial direction of one of the screw rod and the screw sleeve, the linkage member being provided with a force receiving block and the other one of the screw rod and the screw sleeve, and the screw rod and the screw sleeve being threadedly connected;

[0011] The linear motion of the linkage is converted into the rotary motion of the cover by the nut and the screw rod, and the stroke position of the linkage and the angle position of the cover form a continuous corresponding relationship.

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

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

[0014] Preferably, the base is provided with a retreat stop block, the retreat stop block is adjacent to the force receiving block in the sliding direction of the linkage, and a gap is reserved between the retreat stop block and the force receiving block.

[0015] Preferably, one of the linkage and the base is provided with a sliding guide rod, and the other is provided with a guide limiting slot, the sliding guide rod is slidably arranged in the guide limiting slot, and the sliding guide rod and the guide limiting slot are circumferentially fixedly connected.

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

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

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

[0019] A sunshade curtain assembly includes the cover mechanism, and further includes a curtain frame, a curtain cloth, and a hemmed plate, the curtain frame is connected with the base, the curtain cloth is installed on the curtain frame in a lifting manner, the hemmed plate is installed at the top end of the curtain cloth, the hemmed plate is provided with a driving block, and the side surface of the driving block includes a driving inclined surface portion.

[0020] The stroke position of the edge covering plate comprises a first position and a second position, and a linkage interval is formed between the first position and the second position; when the edge covering plate is located in the linkage interval, the driving inclined surface part and the stress inclined surface part are in abutting connection, so that the edge covering plate is in linkage connection with the linkage member, and the descending movement of the edge covering plate in the linkage interval is converted into the linear movement of the linkage member through the driving block and the stress block.

[0021] Preferably, the side surface of the driving block further comprises a second vertical surface part adjacent to the driving inclined surface part.

[0022] The stroke position of the edge covering plate further comprises a retraction limit position, the first position, the second position and the retraction limit position are sequentially arranged along the descending direction of the edge covering plate, and an idle stroke interval is formed between the second position and the retraction limit position; when the edge covering plate is located in the idle stroke interval, the driving inclined surface part and the stress inclined surface part are separated, the first vertical surface part and the second vertical surface part are in abutting connection, the edge covering plate and the linkage member are not in linkage connection, and the descending movement of the edge covering plate in the idle stroke interval does not cause the linear movement of the linkage member.

[0023] Compared with the prior art, the utility model has the beneficial effects that:

[0024] 1. The linear movement of the linkage member can be converted into the folding movement of the flip cover through the principle of threaded transmission, which means that the displacement amount of the linkage member can be controlled through a certain specific stroke interval in the descending process of the edge covering plate, and the folding movement of the flip cover is controlled, and on the basis of accurately controlling the closing of the flip cover, the problem of damage of the flip cover caused by excessive closing is effectively prevented.

[0025] 2. The flip cover mechanism adopts an indirect linkage movement logic, the edge covering plate is not directly linked with the flip cover, but is linked with the flip cover through the linkage member, only a small part of the entire descending stroke of the edge covering 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 is only related to the specific stroke interval of the edge covering plate, and the edge covering plate only needs to push the linkage member to the end position in the descending movement process to close the flip cover, and the stroke of the edge covering plate does not need to strictly correspond to the full stroke of the flip cover.

[0026] 3. The purpose of the inclined surface design is to contact and transmit force with the drive block of the edge banding plate. When the edge banding plate descends within the linkage range, the drive inclined surface on the drive block abuts against the inclined surface. This inclined surface drive design can convert the vertical movement of the edge banding plate into the horizontal sliding movement of the linkage component. The first vertical surface is a surface set along the lifting direction of the edge banding plate. When the edge banding plate moves within the idle travel range or reaches the retraction limit position, the edge banding plate fits against the first vertical surface, which can prevent the force-bearing part from retracting, thereby limiting the linkage component to the end position and ensuring that the flap remains closed.

[0027] 4. During assembly of the linkage and the flip cover, rotate the flip cover to the open position, then connect the screw and the screw sleeve together, ensuring that the screw is aligned with the mounting hole. Next, push the linkage to the starting position, at which point the screw will be inserted into the mounting hole to a certain depth. Finally, screw in the adjusting bolt to axially fix the screw to the mounting hole. When the open position of the flip cover corresponds to the starting position of the linkage, the flip cover can precisely rotate to the closed position when the linkage slides to the end position, thus reducing assembly difficulty while ensuring assembly accuracy.

[0028] 5. During the idle travel range, although the edge banding plate continues to descend, since no force is transmitted to the linkage, it will not cause linear movement of the linkage or any rotation of the flap. The edge banding plate can smoothly descend to the retraction limit position during the idle travel range, allowing the curtain fabric to be completely retracted into the curtain frame. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the flip-top mechanism of this utility model.

[0030] Figure 2 This is a schematic diagram of the flip-top mechanism and the edge panel of this utility model.

[0031] Figure 3 This is a cross-sectional schematic diagram of the flip-top mechanism of this utility model.

[0032] Figure 4 This is a schematic diagram showing the connection relationship between the screw and the sleeve of this utility model.

[0033] Figure 5 This is a schematic diagram showing the position of the edge-sealing plate of this utility model relative to the force-bearing block when it is located in the linkage zone.

[0034] Figure 6 This is a schematic diagram showing the position of the edge banding plate of this utility model relative to the force-bearing block when it is in the idle stroke range.

[0035] Figure 7 This is a partial schematic diagram of the edge banding panel of this utility model.

[0036] Figure 8The state schematic view of the sunshade curtain assembly when the cover is in the closing position.

[0037] Figure 9 The state schematic view of the sunshade curtain assembly when the cover is in the closing position.

[0038] Figure 10 The state schematic view of the sunshade curtain assembly when the cover is in the closing position.

[0039] Figure 11 The state schematic view of the sunshade curtain assembly when the cover is in the closing position.

[0040] In the figure, 100, base; 110, retreat stop block; 120, sliding guide rod; 130, hinged shaft; 131, torsion spring; 200, cover; 210, screw rod; 220, mounting seat; 221, mounting hole; 222, adjusting bolt; 300, linkage; 310, screw sleeve; 320, stress block; 321, stress inclined surface part; 322, first vertical surface part; 330, guide limiting groove; 400, curtain frame; 500, curtain cloth; 600, edge covering plate; 610, driving block; 611, driving inclined surface part; 612, second vertical surface part. DETAILED DESCRIPTION

[0041] The following is a specific embodiment of the utility model and in combination with the drawings, the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0042] As Figures 1 to 11 shown, a cover mechanism, comprising: base 100;Cover 200, cover 200 rotatably mounted on base 100, cover 200 circumferentially fixed with one of screw rod 210 and screw sleeve 310, and one of screw rod 210 and screw sleeve 310 is coaxially arranged with the rotation axis of cover 200;Linkage 300, linkage 300 is slidably installed on base 100, the sliding direction of linkage 300 is consistent with the axial direction of one of screw rod 210 and screw sleeve 310, linkage 300 is provided with stress block 320 and the other of screw rod 210 and screw sleeve 310, screw rod 210 and screw sleeve 310 are threadedly connected;The linear motion of linkage 300 is converted into the rotary motion of cover 200 through screw sleeve 310 and screw rod 210, the stroke position of linkage 300 and the angle position of cover 200 form continuous corresponding relationship.

[0043] Example one:

[0044] In the embodiment one, the screw rod 210 is fixed on the flip cover 200 in the circumferential direction, and the screw sleeve 310 is arranged on the linkage 300. When the linkage 300 moves linearly, the screw sleeve 310 moves along the axial direction of the screw rod 210, and 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, and the automatic folding of the flip cover 200 is realized.

[0045] Embodiment two:

[0046] In the embodiment two, the screw sleeve 310 is fixed on the flip cover 200 in the circumferential direction, and the screw rod 210 is arranged on the linkage 300. When the linkage 300 moves linearly, the screw rod 210 moves along the axial direction of the screw sleeve 310, and the screw sleeve 310 is driven to rotate through the threaded structure. The automatic folding of the flip cover 200 is realized.

[0047] The embodiment one and the embodiment two respectively show two specific layouts of the screw rod 210 and the screw sleeve 310. The principles of the two are the same. The linear motion of one of the screw rod 210 and the screw sleeve 310 is converted into the rotary motion of the other, and the linear motion of the linkage 300 drives the folding of the flip cover 200.

[0048] The folding principle of the flip cover mechanism is that the downward motion of the edge cover plate 600 in a specific stroke interval (i.e. the linkage interval) can be converted into the sliding motion of the linkage 300 through the force block 320. The linkage 300 and the flip cover 200 are linked through the threaded structure, and any stroke position of the linkage 300 corresponds to the corresponding angle position of the flip cover 200. Therefore, when the linkage 300 slides, the flip cover 200 is driven to rotate, and the automatic folding of the flip cover 200 is realized.

[0049] The specific working process of the flip cover mechanism is as follows. When the curtain fabric 500 of the sunshade curtain is lowered, the edge cover plate 600 at the top end of the curtain fabric 500 is lowered. When the edge cover plate 600 is lowered to a specific stroke interval, the edge cover plate 600 is linked with the force block 320. As the edge cover plate 600 continues to be lowered, the linkage 300 is pushed to slide through the force block 320, so that the flip cover 200 rotates. As the edge cover plate 600 continues to be lowered in the specific stroke interval, the displacement of the linkage 300 increases, and the flip cover 200 is gradually folded. When the flip cover 200 is completely folded, the edge cover plate 600 is just out of the specific stroke interval, and the linkage between the edge cover plate 600 and the force block 320 is disconnected. The linkage 300 accurately stays at the position, so that the flip cover 200 remains in the closed position. The edge cover plate 600 continues to be lowered, and stops at the retraction limit position when the curtain fabric 500 is completely retracted. In this process, the lowering of the edge cover plate 600 does not drive the flip cover 200 to move.

[0050] The cover mechanism adopts an indirect linkage motion logic. The edge cover plate 600 is not directly linked with the cover 200, but is linked with the cover 200 through the linkage member 300. Only a small section of the entire descending stroke of the edge cover plate 600 is selected as a specific stroke interval. The linkage member 300 and the cover 200 always maintain a linkage relationship. The displacement stroke of the linkage member 300 is only associated with the specific stroke interval of the edge cover plate 600. The edge cover plate 600 only needs to push the linkage member 300 to the end position during the descending movement to make the cover 200 close, and does not need to strictly correspond the stroke of the edge cover plate 600 to the full stroke of the cover 200.

[0051] It is particularly important to note that by limiting the edge cover plate 600 to drive the linkage member 300 only in the specific stroke interval, the forced correspondence between the full stroke of the edge cover plate 600 and the action of the cover 200 is successfully eliminated. This design makes the descending action of the edge cover plate 600 not continue to affect the cover 200 after the cover 200 is closed, thereby optimizing the motion logic of the cover mechanism and making it more flexible and free.

[0052] The linear motion of the linkage member 300 can be converted into the folding motion of the cover 200 through the principle of screw transmission, which means that the displacement amount of the linkage member 300 can be controlled through a certain specific stroke interval in the descending process of the edge cover plate 600, thereby controlling the folding motion of the cover 200. On the basis of accurately controlling the closing of the cover 200, the problem of damage to the cover 200 due to excessive closing is effectively prevented.

[0053] On the basis of the above-mentioned embodiments, the angular position of the cover 200 includes an open position and a closed position, and the open position and the closed position are located at both ends of the rotation stroke of the cover 200. The stroke position of the linkage member 300 includes a starting position and an end position, and the starting position and the end position are located at both ends of the sliding stroke of the linkage member 300. When the 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 cover 200 is in the closed position.

[0054] In the present embodiment, the cover 200 and the linkage member 300 always maintain a linkage through the screw structure. When the linkage member 300 moves from the starting position to the end position, the 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, the edge cover plate 600 can at most push the linkage member 300 to the end position during the descending process. Since the linkage member 300 cannot pass the end position, the 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 cover plate 600 releases the linkage relationship with the linkage member 300, so the edge cover plate 600 can continue to descend.

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

[0057] The design purpose of the force receiving inclined surface part 321 is to contact and transmit force with the driving block 610 of the cover plate 600. When the cover plate 600 is lowered in the linkage interval, the driving inclined surface part 611 on the driving block 610 is in contact with the force receiving inclined surface part 321. This inclined surface driving design can convert the vertical movement of the cover plate 600 into the horizontal sliding movement of the linkage 300.

[0058] The first vertical surface part 322 is a surface arranged along the lifting direction of the cover plate 600. When the cover plate 600 moves in the idle stroke interval or reaches the retraction limit position, the cover plate 600 is in contact with the first vertical surface part 322, which can prevent the force receiving part from retreating, thereby limiting the linkage 300 at the end position and ensuring that the flip cover 200 remains in the closed state. In addition, when the cover plate 600 is in the idle stroke interval, the first vertical surface part 322 is in contact with the cover plate 600, so that the downward movement of the cover plate 600 cannot be converted into the linear movement of the linkage 300, ensuring that the cover plate 600 and the linkage 300 are in a non-linkage state.

[0059] As Figures 1 to 7 shown, on the basis of the above-mentioned embodiments, the base 100 is provided with a retreat stop block 110, which is adjacent to the force receiving block 320 in the sliding direction of the linkage 300, and a gap is reserved between the retreat stop block 110 and the force receiving block 320.

[0060] The gap reserved between the retreat stop block 110 and the force receiving block 320 is for the insertion of the driving block 610 on the cover plate 600. When the cover plate 600 is in the linkage interval, one side of the driving block 610 is in linkage connection with the force receiving block 320, and the other side of the driving block 610 is stopped by the retreat stop block 110. Therefore, when the driving block 610 pushes the linkage 300 to slide through the downward movement, the retreat stop block 110 can stop the driving block 610, so that it does not retreat during the linkage process, ensuring that the driving block 610 remains stationary in the sliding direction (horizontal direction) of the linkage 300.

[0061] Preferably, the retreat stop block 110 is provided with a first guide inclined surface part, and the driving block 610 is provided with a second guide inclined surface part. During the process of the driving block 610 lowering and entering the linkage interval, the first guide inclined surface and the second guide inclined surface are in contact, thereby guiding the driving block 610 to the correct horizontal position and avoiding the deviation of the driving block 610.

[0062] It should be noted that if the drive block 610 is misaligned in the lateral position, it may come into contact with the stop block 110, causing jamming during descent. The guide ramp can guide the drive block 610 to descend in the correct lateral position.

[0063] Furthermore, since the automatic closing of the flip cover 200 requires extremely high positional accuracy of the linkage 300, the drive block 610 must descend in the correct lateral position. The design of the guide bevel allows the drive block 610 to be guided to the correct lateral position during descent, ensuring the accuracy of the drive block 610 in the lateral position.

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

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

[0066] like Figures 1 to 4 As shown, based on Embodiment 1, the flip cover 200 is provided with a mounting base 220, the mounting base 220 is provided with a mounting hole 221, a portion of the screw 210 is inserted into the mounting hole 221, and the screw 210 is circumferentially fixedly connected to the mounting hole 221.

[0067] It should be noted that the mounting hole 221 is a non-circular hole structure, and part of the cross-section of the screw 210 is consistent with the cross-sectional shape of the mounting hole 221, so part of the screw 210 can be circumferentially fixedly connected to the mounting hole 221. When the screw sleeve 310 moves along the axial direction of the screw 210, it can drive the screw 210 to rotate. Since the screw 210 is circumferentially fixedly connected to the mounting base 220, it can drive the flip cover 200 to rotate.

[0068] Based on the above embodiments, the mounting base 220 is provided with an adjusting bolt 222, which is detachably connected to the screw 210. When the adjusting bolt 222 is connected to the screw 210, the axial degree of freedom of the screw 210 in the mounting hole 221 is restricted. When the adjusting bolt 222 is separated from the screw 210, the screw 210 is allowed to be adjusted axially in the mounting hole 221.

[0069] In order to ensure that the closing position of the cover 200 corresponds to the end position of the linkage 300 accurately, the screw rod 210 is designed as an axially adjustable structure in the embodiment, and the positions of the cover 200 and the linkage 300 are matched by adjusting the screw rod 210 in the axial direction of the mounting hole 221, thereby reducing the assembly difficulty.

[0070] Specifically, if the screw rod 210 is integrated with the cover 200, it is difficult to control the position correspondence between the linkage 300 and the cover 200 due to the dimensional error of the parts. For example, the linkage 300 has reached the end position, but the cover 200 does not reach the closing position or is in the over-closed position due to the matching precision or position of the screw sleeve 310 and the screw rod 210, thereby affecting the use of the product.

[0071] When the linkage 300 and the cover 200 are assembled, the cover 200 can be rotated to the open position, then the screw rod 210 and the screw sleeve 310 are connected together, the 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 the part of the screw rod 210 is inserted into the mounting hole 221 to a certain depth, finally the adjusting bolt 222 is screwed in, so that the screw rod 210 is axially fixed with the mounting hole 221. When the open position of the cover 200 corresponds to the starting position of the linkage 300, the cover 200 can be accurately rotated to the closing position when the linkage 300 slides to the end position, thereby reducing the assembly difficulty on the basis of ensuring the assembly precision.

[0072] As shown in Figure 1 On the basis of the above embodiment, the cover 200 and the base 100 are hinged through the hinge shaft 130, the torsional spring 131 is sleeved on the hinge shaft 130, the two ends of the torsional spring 131 are connected with the cover 200 and the base 100 respectively, and the torsional spring 131 always applies a torsional force to the cover 200 to make it tend to the open position.

[0073] The automatic opening principle of the cover mechanism is that when the edge plate 600 rises upward in the linkage interval, the flap produces an opening movement trend under the action of the torsional spring 131, so that the screw rod 210 produces a rotating movement trend, and then the linkage 300 slides to the starting position, and the cover 200 is gradually opened. When the cover 200 is in the open position, it remains open under the action of the torsional force of the torsional spring 131.

[0074] As shown in Figures 1 to 11 A sunshade curtain assembly includes a cover mechanism, and further includes a curtain frame 400, a curtain cloth 500, and an edge plate 600. The curtain frame 400 is connected with the base 100, the curtain cloth 500 is installed on the curtain frame 400 in a lifting manner, and the edge plate 600 is installed at the top end of the curtain cloth 500. The edge plate 600 is provided with a driving block 610, and the side surface of the driving block 610 includes a driving inclined surface part 611.

[0075] The stroke positions of the cover 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 cover plate 600 is located in the linkage interval, the driving slope portion 611 is in contact with the stress slope portion 321 to make the cover plate 600 and the linkage member 300 linkage connected, and the descending movement of the cover plate 600 in the linkage interval is converted into the linear movement of the linkage member 300 through the driving block 610 and the stress block 320.

[0076] The first position and the second position are actually two critical positions; when the cover plate 600 is in the first position, the bottom of the driving slope portion 611 is in contact with the top of the stress slope portion 321; when the cover plate 600 is in the second position, the top of the driving slope portion 611 is in contact with the bottom of the stress slope portion 321; when the cover plate 600 descends to the first position, it means that the driving block 610 is about to enter the linkage interval; when the cover plate 600 descends to the second position, it means that the driving block 610 is about to leave the linkage interval.

[0077] When the cover plate 600 is in the linkage interval, the driving slope portion 611 and the stress slope portion 321 are in contact, so as the cover plate 600 descends, the driving block 610 can push the stress block 320 (the linkage member 300) to slide, and the descending movement of the cover plate 600 in the linkage interval is converted into the sliding movement of the linkage member 300 through the principle of slope driving.

[0078] The position of the linkage member 300 is controlled through the descending movement of the cover plate 600 in the linkage interval, and then the angular position of the flip cover 200 is accurately controlled. This design ensures that the flip cover 200 can start to close at the correct time and can be completely closed without over-closing; because the stroke limit of the linkage member 300 is limited, even if the cover plate 600 continues to descend, the flip cover 200 will not be damaged due to over-closing.

[0079] On the basis of the above-mentioned embodiments, the side surface of the driving block 610 further includes a second vertical portion 612 adjacent to the driving slope portion 611;

[0080] The stroke positions of the cover plate 600 further include a retraction limit position, the first position, the second position and the retraction limit position are sequentially arranged in the descending direction of the cover plate 600, and a dead stroke interval is formed between the second position and the retraction limit position; when the cover plate 600 is located in the dead stroke interval, the driving slope portion 611 and the stress slope portion 321 are separated, the first vertical portion 322 and the second vertical portion 612 are in contact, the cover plate 600 and the linkage member 300 are not linkage connected, and the descending movement of the cover plate 600 in the dead stroke interval does not make the linkage member 300 linearly move.

[0081] When the dead stroke interval, the driving slope part 611 is separated from the stress slope part 321, and no longer transmits force; the first vertical surface part 322 and the second vertical surface part 612 will resist the connection, limit the stress block 320 (the linkage 300) to retreat, thereby limiting the linkage 300 in the end position by the way of physical resistance.

[0082] In principle, in the dead stroke interval, although the bound plate 600 continues to drop, but there is no force transmission to the linkage 300, so as not to cause the linear motion of the linkage 300 or any rotation of the flip cover 200. And the bound plate 600 can use the dead stroke interval to drop smoothly to the retraction limit position, so that the curtain cloth 500 can be completely retracted into the curtain frame 400.

[0083] This design can not only automatically make the flip cover 200 fold when the bound plate 600 drops, but also ensure that the curtain cloth 500 is completely retracted into the curtain frame 400, avoiding the complete binding of the drop stroke of the bound plate 600 and the movement stroke of the flip cover 200.

[0084] Therefore, the sunshade curtain assembly ensures that the curtain cloth 500 can be completely retracted into the curtain frame 400, and the flip cover 200 is just in the closed position. The defects that the flip cover 200 cannot be completely closed or overclosed due to the full stroke linkage of the flip cover 200 and the bound plate 600 in the traditional design are eliminated.

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

[0086] In addition, in the present application, the description such as "first", "second", "one" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features.

[0087] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be broadly understood, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited.

[0088] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but must be based on that a person having ordinary skill in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of such technical solutions does not exist, also not within the protection scope required by the utility model.

Claims

1. A flip-top mechanism, characterized in that, include: Base (100); A flip cover (200) is rotatably mounted on the base (100). One of a screw (210) and a screw sleeve (310) is circumferentially fixed to the flip cover (200), and one of the screw (210) and the screw sleeve (310) is coaxially arranged with the rotation axis of the flip cover (200). A linkage (300) is slidably mounted on the base (100). The sliding direction of the linkage (300) is consistent with the axial direction of one of the screw (210) and the threaded sleeve (310). The linkage (300) is provided with a force-bearing block (320) and the other of the screw (210) and the threaded sleeve (310). The screw (210) and the threaded sleeve (310) are threadedly connected. The linear motion of the linkage (300) is converted into the rotational motion of the flip cover (200) through the screw sleeve (310) and the screw (210). The stroke position of the linkage (300) and the angular position of the flip cover (200) form a continuous correspondence.

2. The flip-cover mechanism as described in claim 1, characterized in that: The angular positions of the flip cover (200) include an open position and a closed position, which are located at the two ends of the rotation stroke of the flip cover (200). The stroke positions of the linkage (300) include a starting position and an ending position, which are located at the two ends of the sliding stroke of the linkage (300). When the flip cover (200) is in the open position, the linkage (300) is in the starting position. When the linkage (300) is in the ending position, the flip cover (200) is in the closed position.

3. A flip-top mechanism as described in claim 1 or 2, characterized in that: The side of the force-bearing block (320) includes a force-bearing inclined surface (321) and a first vertical surface (322), the first vertical surface (322) being adjacent to the force-bearing inclined surface (321).

4. A flip-top mechanism as described in claim 3, characterized in that: The base (100) is provided with a backstop block (110), which is adjacent to the force block (320) in the sliding direction of the linkage (300), and a gap is reserved between the backstop block (110) and the force block (320).

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

6. The flip-cover mechanism as described in claim 1, characterized in that: The flip cover (200) is provided with a mounting base (220), the mounting base (220) is provided with a mounting hole (221), a portion of the screw (210) is inserted into the mounting hole (221), and the screw (210) is circumferentially fixedly connected to the mounting hole (221).

7. A flip-top mechanism as described in claim 6, characterized in that: The mounting base (220) is provided with an adjusting bolt (222), which is detachably connected to the screw (210). When the adjusting bolt (222) is connected to the screw (210), the axial degree of freedom of the screw (210) in the mounting hole (221) is restricted. When the adjusting bolt (222) is separated from the screw (210), the screw (210) is allowed to be adjusted axially within the mounting hole (221).

8. A flip-top mechanism as described in claim 2, characterized in that: The flip cover (200) and the base (100) are hinged together by a hinge shaft (130). A torsion spring (131) is sleeved on the hinge shaft (130). The two 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 torque to the flip cover (200) to make it tend to the open position.

9. A sunshade curtain assembly, characterized in that, The flap mechanism as described in any one of claims 1 to 8 further includes a curtain frame (400), a curtain fabric (500), and a binding plate (600). The curtain frame (400) is connected to a base (100). The curtain fabric (500) is vertically mounted on the curtain frame (400). The binding plate (600) is mounted on the top of the curtain fabric (500). The binding plate (600) is provided with a driving block (610). The side of the driving block (610) includes a driving inclined surface (611). The stroke position of the edge banding 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 edge banding plate (600) is located in the linkage interval, the driving inclined part (611) and the force-receiving inclined part (321) abut against each other, thereby linking the edge banding plate (600) with the linkage member (300). The downward motion of the edge banding plate (600) in the linkage interval is converted into the linear motion of the linkage member (300) through the driving block (610) and the force-receiving block (320).

10. A sunshade assembly as described in claim 9, characterized in that: The side of the drive block (610) also includes a second vertical section (612), which is adjacent to the drive inclined section (611); The stroke position of the edge banding plate (600) also includes a retraction limit position. The first position, the second position and the retraction limit position are sequentially arranged along the downward direction of the edge banding plate (600). An empty stroke interval is formed between the second position and the retraction limit position. When the edge banding plate (600) is in the empty stroke interval, the driving inclined part (611) and the force-receiving inclined part (321) are separated, the first vertical part (322) and the second vertical part (612) are in contact connection, the edge banding plate (600) and the linkage member (300) are not linked connection, and the downward movement of the edge banding plate (600) in the empty stroke interval does not cause the linkage member (300) to move linearly.

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