Sunshade curtain capable of preventing vibration abnormal sound

Abstract

The utility model provides a sunshade curtain capable of preventing vibration and abnormal sound, which belongs to the technical field of automobile parts and comprises a curtain frame, a sunshade curtain, a sunshade curtain cover and a sunshade curtain cover. The reel pipe drives the rotary disc to rotate when rotating, the rotary disc is provided with a hollow driving piece, and the driving piece is provided with a spiral driving through groove. The swing block is rotatably connected with the curtain frame, and the swing block is provided with a pressing part; one end of the inhaul cable is fixedly connected with the rotating disc, the other end of the inhaul cable is in linkage connection with the swing block, a part of the inhaul cable penetrates through the driving through groove, and when the rotating disc rotates, the part of the inhaul cable moves along the driving through groove so as to pull or loosen the other end of the inhaul cable; the sunshade has the advantages that when the sunshade is in an open state, the swing block can move to the pressing position and abut against the reel pipe through the pressing part, so that the possibility that the reel pipe generates vibration and abnormal sound is greatly reduced, and the pressing part does not make contact with the reel pipe in the unfolding or retracting process of the sunshade.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts and relates to a sunshade curtain capable of preventing vibration and abnormal noise. Background Art

[0002] Some mid- to high-end cars are usually equipped with sunshades to provide passengers with a comfortable riding environment, reduce visual interference and heat accumulation caused by direct sunlight, and ensure privacy in the car. Since the roller tube of the sunshade is usually small in diameter and long in length, that is, the deflection of the roller tube is large, when the vehicle encounters bumpy road conditions or the door is opened and closed frequently during driving, it is easy to collide with the inner wall of the curtain frame due to vibration, resulting in abnormal noise, affecting the quietness of the car, and also reducing the user's overall perception of the vehicle quality.

[0003] Based on the above situation, if a pressing block is used to continuously press the middle part of the roller tube, the vibration and abnormal noise of the roller tube can be effectively suppressed. However, this method also has certain disadvantages. If the vibration is suppressed by direct contact of the pressing block, the roller tube may leave indentations or cause unnecessary wear on the sunshade fabric during rotation, thereby affecting the appearance and functionality of the curtain fabric, and also causing greater resistance when the roller tube rotates. However, there is currently no design that can suppress the rotation of the roller tube only when the sunshade is in a specific position (such as a fully retracted position or a fully open position), which makes the existing sunshade roller tube prone to vibration and abnormal noise when it stops. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and proposes a sunshade curtain capable of preventing vibration and abnormal noise.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A sunshade capable of preventing vibration and abnormal noise, comprising:

[0006] A curtain frame, wherein the outer wall of the curtain frame is provided with an avoidance hole penetrating into the interior of the curtain frame, and a rotatable rolling tube is arranged inside the curtain frame;

[0007] A rotating disk, the rotating disk is fixedly connected to the reel, and the rotating disk is driven to rotate when the reel rotates, the rotating disk is provided with a hollow driving member, and the driving member has a spiral driving through groove;

[0008] A swing block, the swing block is rotatably connected to the curtain frame, and the swing block has a pressing portion;

[0009] A cable, one end of which is fixedly connected to the rotating disk, and the other end of which is linked to the swing block, a portion of which passes through the driving slot, and when the rotating disk rotates, the portion of which moves along the driving slot to pull or loosen the other end of the cable, and the position of the portion of the cable in the driving slot is determined by the stroke position of the reel;

[0010] The stroke position of the swing block includes a pressing position, and the stroke position of the roller tube includes an unfolding position. When the roller tube is in the unfolding position, the swing block is placed in the pressing position by the pull cable. When the swing block is in the pressing position, the pressing portion extends into the avoidance hole and presses against the roller tube.

[0011] Preferably, a guide hole is provided on the curtain frame, and the pull cable passes through the driving groove from the inside of the driving member in a direction from one end to the other end and passes through the guide hole to be linked with the swing block.

[0012] Preferably, it also includes a trigger block and a first elastic member, the trigger block is rotatably connected to the curtain frame, the other end of the cable is fixedly connected to the trigger block, the stroke position of the trigger block includes a trigger position, the first elastic member is installed on the rotating shaft of the trigger block, the first elastic member applies a torque to the trigger block to rotate it toward the trigger position, the position of the trigger block is determined by the stroke position of the roller tube, and when the trigger block is in the trigger position, the trigger block is connected in abutment with the swing block and constrained to the pressing position under the action of the torque of the first elastic member.

[0013] Preferably, when the turntable pulls the other end of the cable through the driving member, the trigger block moves away from the trigger position, and when the turntable releases the other end of the cable through the driving member, the trigger block rotates toward the trigger position under the action of the first elastic member.

[0014] Preferably, the swing block further has a force-bearing portion, and the force-bearing portion and the pressing portion are respectively located on both sides of the rotation center of the swing block, and when the trigger block is located at the trigger position, it presses against the force-bearing portion to keep the swing block at the pressing position.

[0015] Preferably, a second elastic member is provided on the rotating shaft of the swing block, and the second elastic member applies a torsion force to the swing block to move it away from the pressing position, and the torsion force of the first elastic member is greater than the torsion force of the second elastic member.

[0016] Preferably, the stroke position of the trigger block also includes a starting position and a contact position, and the starting position and the contact position are an idle stroke interval, and the contact position and the trigger position are a driving stroke interval, the trigger block is not in contact with the force-bearing part in the idle stroke interval, and the trigger block is in contact with the force-bearing part in the driving stroke interval.

[0017] Preferably, it further comprises a fixed wheel and an adjusting wheel, wherein the fixed wheel is fixedly connected to the curtain frame, the adjusting wheel is movably connected to the curtain frame, and the pull cable is connected to the trigger block after passing through the fixed wheel and the adjusting wheel.

[0018] Preferably, the driving member is configured as a coil spring.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. When the sunshade is in the open state, the swing block can move to the pressing position and press against the roller tube through the pressing part, thereby greatly reducing the possibility of vibration and abnormal noise of the roller tube, and the pressing part does not contact the roller tube during the expansion or retraction of the sunshade.

[0021] 2. The spiral driving groove can continuously and smoothly change the tension of the cable according to the rotation angle of the driving member. After passing through the driving groove, the cable enters the driving member and is fixedly connected to the turntable, that is, part of the cable is in the driving groove. Since the driving groove is spiral, when the driving member rotates, the driving groove can force part of the cable to move along the driving groove. Since one end of the cable is fixed and its part can move along the driving groove, the other end of the cable can be pulled or loosened.

[0022] 3. The design of the trigger block controlling the swing block realizes dynamic response. Only when the sunshade is fully extended, the trigger block will be accurately in place under the drive of the first elastic member, ensuring the effective suppression of the roller tube by the swing block. At the same time, it ensures that when the sunshade is retracted or half-extended, the swing block will not press against the roller tube prematurely or unnecessarily, thereby enhancing the stability and quietness of the sunshade during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the state of the sunshade curtain of the utility model when the curtain fabric is retracted.

[0024] Figure 2 for Figure 1 A magnified schematic diagram of part A.

[0025] Figure 3 It is a schematic diagram of the state of the sunshade curtain of the utility model when the curtain fabric is extended.

[0026] Figure 4It is a schematic diagram of the connection relationship of the cable of the utility model.

[0027] Figure 5 It is a schematic diagram of the trigger block of the utility model in the trigger position.

[0028] Figure 6 It is a schematic diagram of the trigger plate of the utility model in the starting position.

[0029] In the figure, 100, curtain frame; 110, avoidance hole; 120, guide hole; 130, fixed wheel; 140, adjusting wheel; 200, winding tube; 300, turntable; 400, driving member; 410, driving slot; 500, swing block; 510, pressing part; 520, force-bearing part; 530, second elastic member; 600, cable; 700, trigger block; 710, first elastic member. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0031] like Figure 1-4 As shown, a sunshade capable of preventing vibration and abnormal noise comprises: a curtain frame 100, wherein the outer wall of the curtain frame 100 is provided with an avoidance hole 110 penetrating into the interior of the curtain frame 100, and a rotatable roller tube 200 is arranged inside the curtain frame 100; a turntable 300, wherein the turntable 300 is fixedly connected to the roller tube 200, and the turntable 300 is driven to rotate when the roller tube 200 rotates, and the turntable 300 is provided with a hollow driving member 400, and the driving member 400 has a spiral driving groove 410; a swing block 500, wherein the swing block 500 is rotatably connected to the curtain frame 100, and the swing block 500 has a pressing portion 510; a cable 600, wherein one end of the cable 600 is fixedly connected to the turntable 300, and the cable The other end of 600 is linked to the swing block 500, and a portion of the cable 600 passes through the driving slot 410. When the turntable 300 rotates, a portion of the cable 600 moves along the driving slot 410 to pull or loosen the other end of the cable 600, and the position of the portion of the cable 600 in the driving slot 410 is determined by the stroke position of the reel 200; the stroke position of the swing block 500 includes a pressing position, and the stroke position of the reel 200 includes an unfolding position. When the reel 200 is in the unfolding position, the swing block 500 is in the pressing position through the cable 600. When the swing block 500 is in the pressing position, the pressing portion 510 extends into the avoidance hole 110 and presses against the reel 200.

[0032] The roller tube 200 can store or release the curtain when rotating. The outer wall of the curtain frame 100 is provided with an avoidance hole 110. The design of this hole is to cooperate with the work of the swing block 500. The swing block 500 is a movable component and has a pressing part 510 for pressing the roller tube 200. When the sunshade is in the open state, that is, when the roller tube 200 is in the unfolded position, the turntable 300 is in the corresponding set position. At this time, the driving member 400 puts the swing block 500 in the pressing position through the cable 600. At this time, the pressing part 510 of the swing block 500 will just pass through the avoidance hole 110 on the curtain frame 100, and then resist the roller tube 200, which plays the effect of stabilizing the roller tube 200 and preventing it from vibrating. Among them, the turntable 300, the driving member 400 and the cable 600 constitute the most important linkage mechanism. The function of the turntable 300 is to drive the driving member 400 to rotate, and the driving groove 410 is set along the thread line.

[0033] The specific principle of the driving member 400 pulling or releasing the cable 600 is as follows: the spiral driving groove 410 can continuously and smoothly change the tension of the cable 600 according to the rotation angle of the driving member 400. The cable 600 passes through the driving groove 410 and then enters the driving member 400 and is fixedly connected to the rotating disk 300, that is, part of the cable 600 is in the driving groove 410. Since the driving groove 410 is spiral, when the driving member 400 rotates, the driving groove 410 can force part of the cable 600 to move along the driving groove 410. Since one end of the cable 600 is fixed and part of it can move along the driving groove 410, the other end of the cable 600 can be pulled or released.

[0034] During actual operation, when the roller tube 200 rotates in the direction of unfolding the curtain, the driving member 400 pulls the cable 600 through its own spiral structure, pulls the cable 600 and transmits force to the swing block 500; when the roller tube 200 rotates in the opposite direction to retract the curtain, the driving member 400 gradually loosens the cable 600 through the driving slot 410; therefore, the driving member 400 realizes the function of dynamically adjusting the position of the swing block 500 according to the stroke position of the roller tube 200 through the linkage of its spiral driving slot 410 and the cable 600, ensuring that the vibration and abnormal noise of the roller tube 200 can be effectively suppressed when the sunshade is fully unfolded, and during the unfolding or retraction of the curtain, the swing block 500 does not contact the roller tube 200, thereby avoiding unnecessary wear and resistance.

[0035] Preferably, the driving member 400 is configured as a coil spring. Because the coil spring has a spiral driving groove 410 and has a certain rigidity, it can well drive the cable 600 to move. It should be noted that the driving member 400 does not use the elastic force of the spring, but uses it as a power transmission and motion control element. The coil spring can continuously and smoothly change the tension of the cable 600 according to the change of the rotation angle.

[0036] like Figure 1-4 As shown, based on the above embodiment, a guide hole 120 is provided on the curtain frame 100, and the cable 600 passes through the driving groove 410 from the driving member 400 along the direction from one end to the other end and passes through the guide hole 120 to be linked with the swing block 500.

[0037] Since the axial direction of the driving member 400 extends along the lateral direction of the curtain frame 100, when the driving member 400 rotates, the part of the cable 600 in the driving slot 410 will move, changing the axial position of the part of the cable 600, thereby pulling or loosening the other end of the cable 600. This structure helps the cable 600 system to operate smoothly.

[0038] like Figure 1-6 As shown, on the basis of the above embodiment, it also includes a trigger block 700 and a first elastic member 710. The trigger block 700 is rotatably connected to the curtain frame 100. The other end of the cable 600 is fixedly connected to the trigger block 700. The stroke position of the trigger block 700 includes a trigger position. The first elastic member 710 is installed on the rotating shaft of the trigger block 700. The first elastic member 710 applies a torque to the trigger block 700 to rotate it toward the trigger position. The position of the trigger block 700 is determined by the stroke position of the roller 200. When the trigger block 700 is in the trigger position, the trigger block 700 is connected to the swing block 500 in abutment with it and constrains the swing block 500 to the pressing position under the action of the torque of the first elastic member 710.

[0039] The cable 600 indirectly controls the movement of the swing block 500 through the trigger block 700, and the first elastic member 710 can make the trigger block 700 have a torque to rotate toward the trigger position. When the curtain is in the retracted state, the driving member 400 tightens the cable 600, and the trigger block 700 overcomes the torque of the first elastic member 710 under the tension of the cable 600 and remains in the starting position. At this time, the pressing part 510 of the swing block 500 does not contact the roller 200. When the curtain is in the process of unfolding, the driving member 400 gradually loosens the cable 600, and the trigger block 700 gradually rotates toward the trigger position under the action of the first elastic member 710. During the whole process, the stroke position of the trigger block 700 is determined by the stroke position of the roller 200. When the curtain is fully unfolded, the trigger block 700 reaches the trigger position. At this time, the trigger block 700 firmly presses against the force-bearing part 520 of the swing block 500 under the torque of the first elastic member 710, so that the swing block 500 remains in the pressing position.

[0040] This design achieves dynamic response. Only when the sunshade is fully extended, the trigger block 700 will be accurately in place under the drive of the first elastic member 710, ensuring that the swing block 500 effectively suppresses the roller tube 200. At the same time, it ensures that when the sunshade is retracted or half-extended, the swing block 500 will not press against the roller tube 200 prematurely or unnecessarily, thereby enhancing the stability and quietness of the sunshade during operation.

[0041] like Figure 1-6 As shown, based on the above embodiment, when the turntable 300 pulls the other end of the cable 600 through the driving member 400, the trigger block 700 moves away from the trigger position, and when the turntable 300 releases the other end of the cable 600 through the driving member 400, the trigger block 700 rotates toward the trigger position under the action of the first elastic member 710.

[0042] The rotating disk 300 and the driving member 400 work together to precisely adjust the cable 600 through the spiral driving slot 410. When the roller tube 200 rotates to unfold the curtain, the rotating disk 300 causes the cable 600 to be relaxed through the driving member 400, and this action causes the trigger block 700 to approach the trigger position under the action of the first elastic member 710. The opposite process is that when the roller tube 200 reverses to retract the curtain, the rotating disk 300 pulls the cable 600 through the driving member 400, and at this time, the trigger block 700 overcomes the torsion of the first elastic member 710 and moves away from the trigger position, and the swing block 500 leaves the pressing position under the action of the second elastic member 530.

[0043] This mechanism is cleverly designed to ensure that when the sunshade is unfolded, the swing block 500 can be accurately positioned to the pressing position under the pull of the cable 600, effectively pressing the roller tube 200 to prevent vibration and abnormal noise. When the roller tube 200 rotates in other positions, the pressing part 510 is separated from the roller tube 200, thereby avoiding unnecessary contact and friction with the roller tube 200. Through such a linkage effect, the noise problem of the sunshade during operation is solved, and the normal operation and service life of the components are taken into account.

[0044] Based on the above embodiment, the swing block 500 also has a force-bearing part 520, and the force-bearing part 520 and the pressing part 510 are respectively located on both sides of the rotation center of the swing block 500. When the trigger block 700 is in the trigger position, it presses against the force-bearing part 520 to keep the swing block 500 in the pressing position.

[0045] Based on the above embodiment, a second elastic member 530 is provided on the rotating shaft of the swing block 500 , and the second elastic member 530 applies a torque to the swing block 500 to move it away from the pressing position, and the torque of the first elastic member 710 is greater than the torque of the second elastic member 530 .

[0046] When the trigger block 700 is not in contact with the force-bearing part 520, the swing block 500 can be moved away from the pressing position under the action of the second elastic member 530, ensuring that the pressing part 510 of the swing block 500 is not in contact with the roller 200. When the trigger block 700 is in the trigger position, the swing block 500 overcomes the torsion of the second elastic member 530 and is in the pressing position. Once the trigger block 700 leaves the trigger position, the swing block 500 can quickly leave the pressing position.

[0047] It should be pointed out here that, during the design, the torque of the first elastic member 710 is deliberately set to be greater than the torque of the second elastic member 530, so that when the first elastic member 710 takes effect, its torque is sufficient to overcome the force of the second elastic member 530, so that the swing block 500 can smoothly reach and remain in the position of pressing the roller tube 200, thereby effectively suppressing the vibration and abnormal noise of the roller tube 200.

[0048] On the basis of the above-mentioned implementation mode, the stroke position of the trigger block 700 also includes a starting position and a contact position, and the starting position and the contact position are an idling stroke interval, and the contact position and the trigger position are a driving stroke interval. The trigger block 700 does not contact the force-bearing part 520 in the idling stroke interval, and the trigger block 700 contacts the force-bearing part 520 in the driving stroke interval.

[0049] The starting position is the position where the trigger block 700 is naturally located under the action of the first elastic member 710, and the contact position is the position where the trigger block 700 just contacts the force-bearing portion 520 during the rotation of the trigger block 700 toward the trigger position. It should be pointed out here that if the design of directly pulling the swing block 500 by the cable 600 is adopted, although the effect of suppressing the vibration and abnormal noise of the roller tube 200 can also be achieved, in the actual structure, the swing block 500 is installed in the middle of the curtain frame 100, the length of the cable 600 is very long, and the movement of the cable 600 during the unfolding of the curtain is large, resulting in a large rotation amplitude of the swing block 500 directly connected thereto, so the space occupied by the swing block 500 is very large, resulting in a large installation space required for the curtain frame 100.

[0050] In this embodiment, the cable 600 is used to control the movement of the trigger block 700. In the process of the curtain from the retracted state to the extended state, most of the rotation stroke of the roller tube 200 is to control the action of the trigger block 700, that is, most of the stroke of the roller tube 200 is just to make the trigger block 700 rotate in the idle stroke range, and the swing block 500 remains motionless under the action of the second elastic member 530. Only when the roller tube 200 rotates in the last small stroke, the trigger block 700 reaches the driving stroke range and contacts the force-bearing part 520 until the trigger block 700 reaches the trigger position, and the swing block 500 reaches the pressing position. This means that the swing block 500 only needs to swing a very small stroke to reach the pressing position, so the swing amplitude (total stroke) of the swing block 500 is small, which greatly reduces the space occupied by the swing block 500, making the curtain frame 100 more compact.

[0051] The above design shortens the total stroke of the swing block 500 by the idle stroke interval of the trigger block 700. During the entire process of the curtain fabric transitioning from the retracted state to the unfolded state, most of the rotation of the roller tube 200 does not immediately cause the actual movement of the swing block 500, but is mainly used to drive the trigger block 700 to rotate without actual function in the idle stroke interval until the roller tube 200 rotates to the preset stroke position, and the trigger block 700 enters the driving stroke interval. At this time, the trigger block 700 contacts the force-bearing part 520 of the swing block 500, forcing the swing block 500 to rotate quickly and accurately to the pressing position, and use the pressing part 510 to press against the roller tube 200 to suppress its vibration and noise. Such a design significantly reduces the space required for the swing block 500 to occupy inside the curtain frame 100, because it only needs a small swing amplitude to achieve effective pressing of the roller tube 200, thereby improving space utilization and the compactness of the overall structure.

[0052] On the basis of the above embodiment, it further includes a fixed wheel 130 and an adjusting wheel 140 , wherein the fixed wheel 130 is fixedly connected to the curtain frame 100 , and the adjusting wheel 140 is movably connected to the curtain frame 100 , and the pull cable 600 is connected to the trigger block 700 after passing through the fixed wheel 130 and the adjusting wheel 140 .

[0053] The cable 600 can be adjusted by the fixed wheel 130 and the adjusting wheel 140. During actual installation, the two ends of the cable 600 are first fixed on the turntable 300 and the trigger block 700 respectively, and the cable 600 passes through the fixed wheel 130 and the adjusting wheel 140, and then the cable 600 is tensioned by the adjusting wheel 140. The operator can adjust the pre-tensioning state of the cable 600 by moving the position of the adjusting wheel 140 to ensure that during the opening and closing process of the sunshade, the cable 600 can correctly transmit the travel position information of the driving member 400 to the trigger block 700 and maintain appropriate tension to ensure the sensitive response and accurate execution of the linkage mechanism.

[0054] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0055] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A sunshade capable of preventing vibration and abnormal noise, characterized in that: include: A curtain frame (100), wherein an outer wall of the curtain frame (100) is provided with an avoidance hole (110) penetrating into the interior of the curtain frame (100), and a rotatable roller tube (200) is arranged inside the curtain frame (100); A rotating disk (300), wherein the rotating disk (300) is fixedly connected to the reel (200), and when the reel (200) rotates, the rotating disk (300) is driven to rotate, and the rotating disk (300) is provided with a hollow driving member (400), and the driving member (400) has a spiral driving groove (410); A swing block (500), the swing block (500) being rotatably connected to the curtain frame (100), the swing block (500) having a pressing portion (510); A cable (600), one end of the cable (600) is fixedly connected to the rotating disk (300), the other end of the cable (600) is linked to the swing block (500), a portion of the cable (600) passes through the driving slot (410), and when the rotating disk (300) rotates, the portion of the cable (600) moves along the driving slot (410) to pull or loosen the other end of the cable (600), and the position of the portion of the cable (600) in the driving slot (410) is determined by the stroke position of the winding tube (200); The travel position of the swing block (500) includes a pressing position, and the travel position of the roller tube (200) includes an unfolding position. When the roller tube (200) is in the unfolding position, the swing block (500) is placed in the pressing position via the pull cable (600). When the swing block (500) is in the pressing position, the pressing portion (510) extends into the avoidance hole (110) and presses against the roller tube (200).

2. A sunshade capable of preventing vibration and abnormal noise as claimed in claim 1, characterized in that: The curtain frame (100) is provided with a guide hole (120), and the pull cable (600) passes through the driving groove (410) from the inside of the driving member (400) in a direction from one end to the other end and passes through the guide hole (120) to be linked with the swing block (500).

3. A sunshade capable of preventing vibration and abnormal noise as claimed in claim 1, characterized in that: It also includes a trigger block (700) and a first elastic member (710), wherein the trigger block (700) is rotatably connected to the curtain frame (100), the other end of the pull cable (600) is fixedly connected to the trigger block (700), the travel position of the trigger block (700) includes a trigger position, the first elastic member (710) is mounted on the rotating shaft of the trigger block (700), the first elastic member (710) applies a torque to the trigger block (700) to rotate it toward the trigger position, the position of the trigger block (700) is determined by the travel position of the roller tube (200), and when the trigger block (700) is in the trigger position, the trigger block (700) is in contact with the swing block (500) and the swing block (500) is constrained at the pressing position under the action of the torque of the first elastic member (710).

4. A sunshade capable of preventing vibration and abnormal noise as claimed in claim 3, characterized in that: When the rotating disk (300) pulls the other end of the cable (600) through the driving member (400), the trigger block (700) moves away from the trigger position; when the rotating disk (300) releases the other end of the cable (600) through the driving member (400), the trigger block (700) rotates toward the trigger position under the action of the first elastic member (710).

5. A sunshade capable of preventing vibration and abnormal noise as claimed in claim 3, characterized in that: The swing block (500) further comprises a force-bearing portion (520), wherein the force-bearing portion (520) and the pressing portion (510) are respectively located on both sides of the rotation center of the swing block (500), and when the trigger block (700) is located at the trigger position, it abuts against the force-bearing portion (520) to keep the swing block (500) at the pressing position.

6. A sunshade capable of preventing vibration and abnormal noise as claimed in claim 5, characterized in that: A second elastic member (530) is arranged on the rotating shaft of the swing block (500), and the second elastic member (530) applies a torsion force to the swing block (500) to move it away from the pressing position, and the torsion force of the first elastic member (710) is greater than the torsion force of the second elastic member (530).

7. A sunshade capable of preventing vibration and abnormal noise as claimed in claim 6, characterized in that: The travel position of the trigger block (700) also includes a starting position and a contact position, and the starting position and the contact position are in an idle travel interval, and the contact position and the trigger position are in a driving travel interval. The trigger block (700) is not in contact with the force-bearing portion (520) in the idle travel interval, and the trigger block (700) is in contact with the force-bearing portion (520) in the driving travel interval.

8. The sunshade capable of preventing vibration and abnormal noise as claimed in claim 3, characterized in that: It also includes a fixed wheel (130) and an adjusting wheel (140), wherein the fixed wheel (130) is fixedly connected to the curtain frame (100), and the adjusting wheel (140) is movably connected to the curtain frame (100), and the pull cable (600) is connected to the trigger block (700) after passing through the fixed wheel (130) and the adjusting wheel (140).

9. A sunshade capable of preventing vibration and abnormal noise as claimed in claim 1 or 3, characterized in that: The driving member (400) is configured as a coil spring.

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