Vibration abnormal sound suppression mechanism for sunshade curtain

Abstract

The utility model provides a vibration abnormal sound suppression mechanism for a sunshade curtain, which belongs to the technical field of automobile parts and comprises a swing block, the swing block is provided with a rotating shaft, a first pressing block and a second pressing block, and the first pressing block and the second pressing block are respectively positioned on two sides of the rotating shaft and form a lever structure; the linkage mechanism comprises a screw rod and a nut block, the nut block is connected with the screw rod, and the screw rod drives the nut block to move when rotating; the elastic piece is connected with the swinging block; one end of the inhaul cable is connected with the nut block, and the other end of the inhaul cable is connected with the swing block; the rolling pipe pressing mechanism has the advantages that when the rolling pipe pressing mechanism is applied to a sunshade curtain, the rolling pipe can be pressed through the first pressing block or the second pressing block to restrain vibration and abnormal sound of the rolling pipe when the rolling pipe rotates to a specific position, the rolling pipe does not make contact with the rolling pipe when rotating at other positions, curtain cloth is prevented from being affected, and normal rotation of the rolling pipe is not hindered.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts and relates to a vibration and abnormal noise suppression mechanism for a sunshade. 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 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 pressing block is used to directly contact and suppress its vibration, 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. At present, there is a lack of a mechanism that can press the roller tube when the sunshade roller tube rotates to a specific 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 vibration and abnormal noise suppression mechanism for sunshade curtains.

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

[0006] A swing block, wherein the swing block is provided with a rotating shaft, a first pressing block and a second pressing block, wherein the first pressing block and the second pressing block are respectively located on both sides of the rotating shaft and form a lever structure;

[0007] A linkage mechanism, the linkage mechanism comprising a screw rod and a nut block, the nut block is connected to the screw rod, and the screw rod drives the nut block to move when it rotates;

[0008] an elastic member connected to the swing block;

[0009] A cable, one end of which is connected to the nut block and the other end is connected to the swing block. The nut block is linked to the swing block through the cable and the swing position of the swing block is determined by the position of the nut block on the screw rod.

[0010] Preferably, the swing block can rotate around the rotation center of the rotating shaft, the swing position of the swing block includes a first pressing position and a second pressing position, the position of the nut block on the screw rod includes a first setting position and a second setting position, when the nut block is located at the first setting position, the swing block is in the first pressing position, and when the nut block is located at the second setting position, the swing block is in the second pressing position.

[0011] Preferably, the nut block tightens or loosens the cable when moving on the screw rod, and the swing block swings toward one of the first pressing position and the second pressing position when the nut block tightens the cable, and the swing block swings toward the other of the first pressing position and the second pressing position under the elastic force of the elastic member when the nut block loosens the cable.

[0012] Preferably, it further comprises a base, and the swing block is hinged to the base via the rotating shaft.

[0013] Preferably, the rotating shaft is fixedly connected to the swing block, a crank is fixedly provided on the rotating shaft, the other end of the cable is fixedly connected to the crank, one end of the torsion spring abuts against the crank and the other end abuts against the base.

[0014] Preferably, the first pressing block and the second pressing block are both detachable and adjustably connected to the swing block.

[0015] Preferably, the first pressing block is provided with a first adjustment hole, the second pressing block is provided with a second adjustment hole, screws are provided on both sides of the swing block, one of the screws is connected to the first adjustment block through the first adjustment hole, and the other screw is connected to the second adjustment block through the second adjustment hole.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. When the mechanism is applied to the sunshade, when the roller tube rotates to a specific position, the first pressing block or the second pressing block can press the roller tube to suppress the vibration and abnormal noise of the roller tube. When the roller tube rotates to other positions, it does not contact the roller tube to avoid affecting the curtain fabric and does not hinder the normal rotation of the roller tube.

[0018] 2. The dynamic behavior of the swing block is precisely controlled by the movement of the nut block on the screw rod, which effectively suppresses the vibration of the sunshade roller tube when it rotates to a specific point, while keeping the roller tube running normally without hindrance in the rest of the time period, improving the overall comfort of use and the durability of the equipment.

[0019] 3. The first pressing block and the second pressing block are designed to be detachable and adjustable, so that they can be flexibly adjusted according to the actual state of the curtain and the rotation of the winding tube. This not only simplifies the manufacturing and installation steps, but also greatly improves the accuracy of the coordination between the two and the linkage mechanism and the winding tube, ensuring the effective implementation of the shockproof function. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural exploded view of the vibration and abnormal noise suppression mechanism of the utility model.

[0021] Figure 2 This is a schematic diagram of the first pressing block of the vibration and abnormal noise suppression mechanism of the utility model when performing pressing.

[0022] Figure 3 This is a schematic diagram from another perspective of the first pressing block of the vibration and abnormal noise suppression mechanism of the utility model when performing pressing.

[0023] Figure 4 This is a schematic diagram of the second pressing block of the vibration and abnormal noise suppression mechanism of the utility model during pressing.

[0024] Figure 5 It is a structural schematic diagram of the swing block of the utility model.

[0025] In the figure, 100, swing block; 110, rotating shaft; 120, first pressing block; 121, first adjusting hole; 130, second pressing block; 131, second adjusting hole; 140, crank handle; 150, screw; 200, screw rod; 300, nut block; 400, elastic member; 500, cable; 600, base. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1-5As shown, a vibration and abnormal noise suppression mechanism for a sunshade includes: a swing block 100, the swing block 100 is provided with a rotating shaft 110, a first pressing block 120 and a second pressing block 130, the first pressing block 120 and the second pressing block 130 are respectively located on both sides of the rotating shaft 110 and form a lever structure; a linkage mechanism, the linkage mechanism includes a screw rod 200 and a nut block 300, the nut block 300 is connected to the screw rod 200, and the nut block 300 is driven to move when the screw rod 200 rotates; an elastic member 400, the elastic member 400 is connected to the swing block 100; a cable 500, one end of the cable 500 is connected to the nut block 300 and the other end is connected to the swing block 100, the nut block 300 is linked to the swing block 100 through the cable 500 and the swing position of the swing block 100 is determined by the position of the nut block 300 on the screw rod 200.

[0028] The vibration and abnormal noise suppression mechanism can be installed on the sunshade, so that the sunshade can press the roller tube through the pressing block in different states (curtain cloth retracted or extended). When the pressing block is pressed on the roller tube, it can suppress the vibration and abnormal noise of the roller tube, and the pressing block does not contact the roller tube during the rotation of the roller tube, so it can avoid affecting the curtain cloth and does not hinder the normal rotation of the roller tube. Among them, the swing block 100 is rotatably installed on the base 600 of the curtain frame through the rotating shaft 110, and the screw rod 200 is connected to the roller tube in the curtain frame. When the curtain cloth is extended and retracted, the roller tube rotates, and the rotation of the roller tube can drive the screw rod 200 to rotate. The screw rod 200 changes the position of the nut block 300 by rotating, and the nut block 300 can tighten or loosen the cable 500 when moving, and then change the angle of the swing block 100 through the cable 500 and the elastic member 400.

[0029] When the mechanism is applied to the sunshade, when the roller tube rotates to a specific position, the first pressing block 120 or the second pressing block 130 can press the roller tube to suppress the vibration and abnormal noise of the roller tube. When the roller tube rotates to other positions, it does not contact the roller tube to avoid affecting the curtain fabric and does not hinder the normal rotation of the roller tube.

[0030] On the basis of the above embodiment, the swing block 100 can rotate around the rotation center of the rotating shaft 110, the swing position of the swing block 100 includes a first pressing position and a second pressing position, the position of the nut block 300 on the screw rod 200 includes a first setting position and a second setting position, when the nut block 300 is located at the first setting position, the swing block 100 is in the first pressing position, and when the nut block 300 is located at the second setting position, the swing block 100 is in the second pressing position.

[0031] In this embodiment, when the vibration and abnormal noise suppression mechanism is installed on the sunshade, its specific working principle is as follows: when the roller tube of the sunshade rotates to a specific position, the linkage mechanism adjusts the cable 500 through the cooperation of the screw rod 200 and the nut block 300 to drive the first pressing block 120 or the second pressing block 130 on the swing block 100 to accurately press on the roller tube, thereby effectively suppressing the vibration of the roller tube and the noise generated thereby. When the roller tube rotates to a non-specified position, the first pressing block 120 and the second pressing block 130 on the swing block 100 do not contact the roller tube, ensuring that the curtain fabric is not damaged and does not affect the normal rotation of the roller tube.

[0032] In actual use, there are two avoidance holes on the curtain frame. When the curtain is in the retracted position, the screw rod 200 is in the first set position, at which time the swing block 100 is in the first pressing position, and the first pressing block 120 extends into the avoidance hole to press the winding tube; similarly, when the curtain is in the extended position, the screw rod 200 is in the second set position, at which time the swing block 100 is in the second pressing position, and the second pressing block 130 extends into the avoidance hole to press the winding tube; when the winding tube rotates between the curtain extended and retracted positions, the first pressing block 120 and the second pressing block 130 are not in contact with the winding tube.

[0033] like Figure 1-4 As shown, on the basis of the above-mentioned embodiment, the nut block 300 tightens or loosens the cable 500 when moving on the screw rod 200, and the swing block 100 swings toward one of the first pressing position and the second pressing position when the nut block 300 tightens the cable 500, and the swing block 100 swings toward the other of the first pressing position and the second pressing position under the elastic force of the elastic member 400 when the nut block 300 loosens the cable 500.

[0034] When the nut block 300 moves on the screw rod 200, its moving state determines the tension of the cable 500. When the nut block 300 moves in a certain direction and tightens the cable 500, the cable 500 will transmit force to the swing block 100, prompting the swing block 100 to rotate toward one of the first pressing position and the second pressing position. When the nut block 300 releases the cable 500, the swing block 100 will rotate toward the other of the first pressing position and the second pressing position due to the force of the elastic member 400 (such as a spring) connected thereto. This design uses the movement of the nut block 300 on the screw rod 200 to precisely control the dynamic behavior of the swing block 100, thereby achieving effective vibration suppression of the sunshade roller tube when it rotates to a specific point, while maintaining unimpeded normal operation of the roller tube during the rest of the time period, thereby improving the overall comfort of use and the durability of the equipment.

[0035] like Figure 1-5As shown, on the basis of the above embodiment, a base 600 is further included, and the swing block 100 is hinged to the base 600 through the rotating shaft 110. The base 600 is connected to the curtain frame of the sunshade curtain. The advantage of this design is that the base 600 can be added to the ordinary sunshade curtain so that the swing block 100 can be hinged to the curtain frame.

[0036] On the basis of the above embodiment, the rotating shaft 110 is fixedly connected to the swing block 100, a crank 140 is fixedly arranged on the rotating shaft 110, the other end of the cable 500 is fixedly connected to the crank 140, one end of the torsion spring abuts against the crank 140 and the other end abuts against the base 600. By manipulating the crank 140, the activity state of the swing block 100 can be directly affected, such as changing the tension of the cable 500, and then adjusting the pressing position of the swing block 100 and the first pressing block 120 and the second pressing block 130 thereon on the sunshade roller tube.

[0037] like Figure 1-5 As shown, based on the above embodiment, the first pressing block 120 and the second pressing block 130 are both detachably and adjustably connected to the swing block 100 .

[0038] It should be pointed out here that, since the present mechanism needs to be installed on the sunshade curtain, the first pressing block 120 and the second pressing block 130 on the swing block 100 need to be in precise contact with the rolling tube only when the rolling tube is in a specific position (i.e., the retracted position where the curtain fabric is fully retracted and the extended position where the curtain fabric is fully extended) to achieve the best shockproof effect. When the rolling tube has not reached the retracted position or the extended position, the first pressing block 120 or the second pressing block 130 on the swing block 100 cannot contact the rolling tube. Only when the rolling tube reaches the retracted position or the extended position, the first pressing block 120 or the second pressing block 130 just contacts the rolling tube. This means that the entire system requires very high precision. In order to achieve the high precision requirement, the present embodiment specifically designs the first pressing block 120 and the second pressing block 130 into a detachable and adjustable structure.

[0039] On the basis of the above embodiment, the first pressing block 120 is provided with a first adjustment hole 121, the second pressing block 130 is provided with a second adjustment hole 131, and screws 150 are provided on both sides of the swing block 100, one screw 150 is connected to the first adjustment block through the first adjustment hole 121, and the other screw 150 is connected to the second adjustment block through the second adjustment hole 131. This adjustable design means that the user can change the installation position of the first pressing block 120 and the second pressing block 130 through the adjustment holes and the screws 150.

[0040] In the actual assembly process, first complete the assembly of the rest of the sunshade, and keep the installation of the first pressing block 120 and the second pressing block 130 to the last stage. For example, when the curtain is fully retracted into the curtain frame, first install the first pressing block 120 to ensure that the first pressing block 120 is accurately pressed on the roller tube through the first avoidance hole. Then, when the curtain is fully unfolded, install the second pressing block 130 to ensure that it is pressed against the appropriate position of the roller tube through the second avoidance hole. This step-by-step installation and adjustable design greatly improves the accuracy of system positioning, simplifies the production and assembly process, and ensures that the two pressing blocks accurately play a role at the two key positions of the roller tube stroke.

[0041] The first pressing block 120 and the second pressing block 130 are designed to be detachable and adjustable, so that they can be flexibly adjusted according to the actual state of the curtain and the rotation of the winding tube, which not only simplifies the manufacturing and installation steps, but also greatly improves the accuracy of the coordination between the two and the linkage mechanism and the winding tube, ensuring the effective implementation of the shockproof function.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A vibration and abnormal noise suppression mechanism for a sunshade, characterized in that: include: A swing block (100), wherein the swing block (100) is provided with a rotating shaft (110), a first pressing block (120) and a second pressing block (130), wherein the first pressing block (120) and the second pressing block (130) are respectively located on both sides of the rotating shaft (110) and form a lever structure; A linkage mechanism, the linkage mechanism comprising a screw rod (200) and a nut block (300), the nut block (300) being connected to the screw rod (200), and the screw rod (200) drives the nut block (300) to move when rotating; An elastic member (400), the elastic member (400) being connected to the swing block (100); A cable (500), one end of the cable (500) is connected to the nut block (300) and the other end is connected to the swing block (100), the nut block (300) is linked to the swing block (100) through the cable (500) and the swing position of the swing block (100) is determined by the position of the nut block (300) on the screw rod (200).

2. A vibration and abnormal noise suppression mechanism for a sunshade curtain as claimed in claim 1, characterized in that: The swing block (100) can rotate around the rotation center of the rotating shaft (110); the swing position of the swing block (100) includes a first pressing position and a second pressing position; the position of the nut block (300) on the screw rod (200) includes a first setting position and a second setting position; when the nut block (300) is located at the first setting position, the swing block (100) is in the first pressing position; when the nut block (300) is located at the second setting position, the swing block (100) is in the second pressing position.

3. A vibration and abnormal noise suppression mechanism for a sunshade curtain as claimed in claim 2, characterized in that: The nut block (300) tightens or loosens the cable (500) when moving on the screw rod (200); when the nut block (300) tightens the cable (500), the swing block (100) swings toward one of the first pressing position and the second pressing position; when the nut block (300) loosens the cable (500), the swing block (100) swings toward the other of the first pressing position and the second pressing position under the elastic force of the elastic member (400).

4. The vibration and abnormal noise suppression mechanism for sunshade curtain according to claim 1, characterized in that: It also includes a base (600), and the swing block (100) is hinged to the base (600) via the rotating shaft (110).

5. The vibration and abnormal noise suppression mechanism for sunshade curtain according to claim 4, characterized in that: The rotating shaft (110) is fixedly connected to the swing block (100); a crank (140) is fixedly arranged on the rotating shaft (110); the other end of the pull cable (500) is fixedly connected to the crank (140); one end of the elastic member (400) abuts against the crank (140) and the other end abuts against the base (600).

6. The vibration and abnormal noise suppression mechanism for sunshade curtain according to claim 1, characterized in that: The first pressing block (120) and the second pressing block (130) are both detachably and adjustably connected to the swing block (100).

7. A vibration and abnormal noise suppression mechanism for a sunshade curtain as claimed in claim 6, characterized in that: The first pressing block (120) is provided with a first adjustment hole (121), the second pressing block (130) is provided with a second adjustment hole (131), and screws (150) are provided on both sides of the swing block (100), one of the screws (150) is connected to the first pressing block (120) through the first adjustment hole (121), and the other of the screws (150) is connected to the second pressing block (130) through the second adjustment hole (131).

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