Tolerance compensation mechanism of direct-drive sunshade curtain

Abstract

The utility model provides a tolerance compensation mechanism of a direct-drive type sunshade curtain. The tolerance compensation mechanism comprises a compensation structure and a sunshade curtain pulling plate. Wherein the compensation structure comprises an elastic compensation piece and two connecting blocks, the two connecting blocks are connected to the two ends of the elastic compensation piece respectively, and the elastic compensation piece is used for providing tolerance compensation for the linear velocity difference in the opening and closing process of the curtain cloth; the sunshade curtain pulling plate comprises a pulling plate channel, and the compensation structure is arranged in the pulling plate channel in a sliding mode and used for achieving radial limiting and axial sliding of the connecting block to reduce friction resistance. Tolerance compensation can be provided for the linear speed difference in the opening and closing process of the sunshade curtain, so that friction abnormal sound is avoided, stable and mute operation of the sunshade curtain is guaranteed, the assembly time of workers is shortened, and the assembly quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sunshade curtains, and in particular to a tolerance compensation mechanism of a direct-drive sunshade curtain. Background Art

[0002] Automobile sunshades can effectively block sunlight, reduce the temperature inside the car, and provide passengers with a more comfortable riding environment. Especially in summer, sunshades can significantly reduce the exposure of sunlight to the car, thereby reducing the temperature inside the car and alleviating the burden on the air conditioner; the curtains of existing sunshades are generally rolled up on the same sunshade rolling tube, and the opening and retracting of the sunshade curtains are achieved by the motor driving the flexible shaft (the flexible shaft is connected to the front end of the sunshade curtain) and the winding spring or spring mechanism on the rolling tube. When the sunshade is opened, the motor drives the flexible shaft to unfold the curtain, and the winding spring or spring is elastically deformed, and then the sunshade is retracted using the elastic force of the winding spring or spring. This type of flexible shaft transmission mechanism is prone to generate noise during the operation of the flexible shaft. At the same time, this type of central sunshade has many parts, complex assembly process, high cost, and is not easy to repair after sales. In addition, the elasticity of the coil spring or spring is prone to decay after a long time, resulting in the sunshade function failure and inability to open normally. The elastic compensation parts of the existing direct-drive sunshade system lack limit stops when moving in the pull plate channel, and are prone to contact and friction with the inner wall of the pull plate channel, which is prone to abnormal noise and increased resistance to the elastic compensation parts.

[0003] For example, the "Dual-channel sunshade curtain beam and sunshade curtain" disclosed in the Chinese utility model patent (publication number: CN219618885U) discloses that a spring is provided in the direct-drive dual-channel sunshade curtain beam of the prior art to balance the resistance, which is an effective means of providing tolerance compensation. However, due to the length limitation of the beam, the stroke of the direct-drive sunshade curtain is greatly constrained. Therefore, a direct-drive sunshade curtain beam with a large stroke is needed to meet the sunshade needs of cars with large-size skylights. The above patent can prove the defects of the prior art. Summary of the invention

[0004] The purpose of the utility model is to address the problems that the existing elastic compensating member lacks limit when moving in the pull plate channel, is easily in contact with the inner wall of the pull plate channel and causes friction, is prone to abnormal noise, and the elastic compensating member is subject to increased resistance.

[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides a tolerance compensation mechanism for a direct-drive sunshade to improve the above-mentioned problem.

[0006] The specific application is as follows:

[0007] A tolerance compensation mechanism for a direct-drive sunshade curtain, comprising a compensation structure and a sunshade curtain pull plate;

[0008] Wherein, the compensation structure includes an elastic compensation member and a connecting block, the number of the connecting blocks is two and they are respectively connected to the two ends of the elastic compensation member, and the elastic compensation member is used to provide tolerance compensation for the linear speed difference during the curtain opening and closing process;

[0009] The sunshade curtain pull plate includes a pull plate channel, and the compensation structure is slidably arranged in the pull plate channel to achieve radial limitation of the connection block and axial sliding to reduce friction resistance.

[0010] As a preferred technical solution of the present application, it also includes that a plurality of arc-shaped protrusions are provided on the connecting blocks, and the arc-shaped protrusions are slidably connected to the inner wall of the pull plate channel.

[0011] As a preferred technical solution of the present application, the compensation structure further includes two pull-wire bodies, and one end of the two pull-wire bodies is respectively connected to two connecting blocks.

[0012] As a preferred technical solution of the present application, plug plates are inserted at both ends of the pull plate channel, and the ends of the two plug plates that are away from each other are fixedly connected with sunshade sliding feet. Arc grooves are provided on the two sunshade sliding feet, and the pull wire body passes through the arc grooves, and the arc grooves are used to guide the pull wire body.

[0013] As a preferred technical solution of the present application, the elastic compensation member is a tension spring.

[0014] As a preferred technical solution of the present application, the elastic compensating member and the connecting block, and the wire drawing body and the connecting block are fixedly connected or detachably connected.

[0015] As a preferred technical solution of the present application, the elastic compensating member and the connecting block, and the wire drawing body and the connecting block are detachably connected;

[0016] A first connecting member is arranged between the elastic compensating member and the connecting block, and a second connecting member is arranged between the wire pulling body and the connecting block.

[0017] As a preferred technical solution of the present application, the first connecting member includes a first slot opened on the connecting block, and one end of the elastic compensation member is inserted into the first slot.

[0018] As a preferred technical solution of the present application, the first connecting member further comprises a connecting column fixedly mounted on the side of the connecting block, and the outer surface of the connecting column is plugged into the elastic compensation member.

[0019] As a preferred technical solution of the present application, the second connecting member includes a second slot and a through hole opened on the connecting block, the through hole is connected to the second slot, a pull wire buckle is inserted into the second slot, one end of the pull wire body passes through the through hole and is fixedly connected to the pull wire buckle.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] In the scheme of this application:

[0022] By introducing elastic compensating parts, the present application can perform tolerance compensation for the linear speed difference during the curtain opening and closing process. Since the linear speed difference is effectively compensated, the movement of the sunshade is smoother, and the vibration and impact caused by speed changes are reduced, thereby improving the stability of the overall structure. The setting of the connecting block effectively solves the problem that the elastic compensating parts are easy to contact with the inner wall of the pull plate channel due to lack of limit during movement, thereby avoiding the generation of abnormal friction noise and ensuring the smooth and silent operation of the sunshade; the setting of the connecting block sliding in the pull plate channel not only realizes the radial limit of the elastic compensating parts by the connecting block, but also reduces the friction resistance of axial sliding and the resistance exerted on the elastic compensating parts; in summary, the tolerance compensation mechanism of the direct-drive sunshade provided by the present application realizes the compensation for the linear speed difference during the curtain opening and closing process through optimized design and structural innovation, reduces friction resistance, improves operating efficiency, and at the same time enhances the overall stability, providing users with a more comfortable and quiet use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 An exploded view of the tolerance compensation mechanism of the direct-drive sunshade provided in the present application;

[0024] Figure 2 The tolerance compensation mechanism of the direct-drive sunshade provided in this application Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 An exploded view of the tolerance compensation mechanism of the direct-drive sunshade provided in the present application;

[0026] Figure 4 A schematic diagram of the structure of the arc-shaped protrusion of the tolerance compensation mechanism of the direct-drive sunshade provided in the present application;

[0027] Figure 5 A schematic diagram of the structure of the cable buckle of the tolerance compensation mechanism of the direct-drive sunshade provided in the present application;

[0028] Figure 6 A schematic cross-sectional view of the connection block of the tolerance compensation mechanism of the direct-drive sunshade provided in the present application;

[0029] Figure 7 This is a schematic structural diagram of the connection between the wire buckle of the tolerance compensation mechanism of the direct-drive sunshade provided in the present application and the second slot.

[0030] Indicated in the figure:

[0031] 1. Compensation structure; 101. Elastic compensation part; 102. Connecting block; 103. Connecting column; 104. First slot; 105. Through hole; 106. Second slot; 107. Pull wire buckle; 108. Pull wire body; 109. Arc-shaped protrusion; 2. Sunshade pull plate; 201. Pull plate channel; 3. Sunshade sliding foot; 301. Insert plate; 303. Arc-shaped groove. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0033] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] Example 1, please refer to Figure 1-Figure 7 , a tolerance compensation mechanism for a direct-drive sunshade, comprising a compensation structure 1 and a sunshade pull plate 2;

[0037] The compensation structure 1 includes an elastic compensation member 101 and a connecting block 102. The connecting blocks 102 are two and are respectively connected to both ends of the elastic compensation member 101. The elastic compensation member 101 is used to provide tolerance compensation for the linear speed difference during the curtain opening and closing process. The elastic compensation member 101 is a tension spring.

[0038] The sunshade pull plate 2 includes a pull plate channel 201, and the compensation structure 1 is slidably arranged in the pull plate channel 201 to achieve radial limitation and axial sliding of the connecting block 102 to reduce friction resistance, so as to reduce friction caused by contact between the elastic compensation part 101 and the inner wall of the pull plate channel 201.

[0039] Further, such as Figure 4 As shown, the connecting block 102 is also provided with a plurality of arc-shaped protrusions 109, and the arc-shaped protrusions 109 are slidably connected to the inner wall of the pull plate channel 201. The arc-shaped protrusions 109 can reduce the contact area between the connecting block 102 and the pull plate channel 201, thereby further reducing the friction resistance.

[0040] Further, such as Figure 1 and Figure 2 As shown, the compensation structure 1 further includes two wire drawing bodies 108, one end of each of which is connected to two connecting blocks 102 respectively; the wire drawing bodies 108 are used to pull the connecting blocks 102 under external force to achieve movement and deformation of the elastic compensating member 101;

[0041] Furthermore, Figure 1-Figure 2 As shown, both ends of the pull plate channel 201 are plugged with plug plates 301, and the ends of the two plug plates 301 that are away from each other are fixedly connected with sunshade sliding feet 3. Arc grooves 303 are opened on the two sunshade sliding feet 3, and the pull wire body 108 passes through the arc grooves 303. The arc grooves 303 are used to guide the pull wire body 108. The front end of the sunshade curtain fabric is connected to the sunshade pull plate 2 through the sunshade sliding feet 3. The arc grooves 303 can provide a turning radius for the pull wire body 108, reduce the wear of the pull wire, reduce the space occupied by parts, and at the same time play the Z-direction limit role when the sunshade pull plate 2 moves on the guide rail.

[0042] Embodiment 2 further optimizes the tolerance compensation mechanism of the direct-drive sunshade provided in Embodiment 1. Specifically, the elastic compensation member 101 and the connecting block 102, and the pull wire body 108 and the connecting block 102 are fixedly connected or detachably connected. The fixed connection can improve the firmness of the connection between the structures, and the detachable connection can facilitate replacement of the components after they are worn.

[0043] Embodiment 3 further optimizes the tolerance compensation mechanism of the direct-drive sunshade provided in Embodiment 1. Specifically, the elastic compensating member 101 and the connecting block 102, and the wire body 108 and the connecting block 102 are detachably connected to facilitate replacement of the connecting block 102 and the arc-shaped protrusion 109 after wear and elastic fatigue of the elastic compensating member 101. It is also convenient for replacement of the wire body 108. By replacing worn parts, the need for overall replacement can be reduced, thereby reducing the cost of use.

[0044] Furthermore, a first connecting member is arranged between the elastic compensating member 101 and the connecting block 102, and a second connecting member is arranged between the pull wire body 108 and the connecting block 102, that is, the elastic compensating member 101 and the connecting block 102 are detachably connected through the first connecting member, and the pull wire body 108 and the connecting block 102 are detachably connected through the second connecting member.

[0045] Further, such as Figure 5-Figure 7 As shown, the first connecting member includes a first slot 104 opened on the connecting block 102, and one end of the elastic compensating member 101 is inserted into the first slot 104, thereby realizing the connection between the elastic compensating member 101 and the connecting block 102. After separating the elastic compensating member 101 from the first slot 104, the elastic compensating member 101 and the connecting block 102 can be separated.

[0046] Further, such as Figure 5-Figure 7 As shown, the first connecting member also includes a connecting column 103 fixedly installed on the side of the connecting block 102, and the outer surface of the connecting column 103 is plugged into the elastic compensating member 101. The connecting column 103 can help locate the relative position of the connecting block 102 and the elastic compensating member 101 to prevent unnecessary offset or misalignment between them; the connecting column 103 can increase the connection stability between the connecting block 102 and the elastic compensating member 101, and it can prevent the connecting block 102 from accidentally separating from the elastic compensating member 101 when subjected to external force, thereby ensuring the stability and reliability of the entire structure.

[0047] Further, such as Figure 6-Figure 7 As shown, the second connecting member includes a second slot 106 and a through hole 105 opened on the connecting block 102. The through hole 105 is connected to the second slot 106. A wire draw buckle 107 is inserted into the second slot 106. One end of the wire draw body 108 passes through the through hole 105 and is fixedly connected to the wire draw buckle 107. The mutual cooperation between the wire draw buckle 107 and the second slot 106 can connect the wire draw body 108 and the connecting block 102 together. When the connecting block 102 is taken out of the pull plate channel 201, the wire draw buckle 107 can be separated from the second slot 106.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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.

[0049] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A tolerance compensation mechanism for a direct-drive sunshade, characterized in that: It comprises a compensation structure (1) and a sunshade curtain pull plate (2); The compensation structure (1) comprises an elastic compensation member (101) and a connecting block (102); the connecting blocks (102) are two in number and are respectively connected to two ends of the elastic compensation member (101); the elastic compensation member (101) is used to provide tolerance compensation for the linear speed difference during the curtain opening and closing process; The sunshade curtain pull plate (2) comprises a pull plate channel (201), and the compensation structure (1) is slidably arranged in the pull plate channel (201) to achieve radial limiting of the connection block (102) and axial sliding to reduce friction resistance.

2. A tolerance compensation mechanism for a direct-drive sunshade according to claim 1, characterized in that: The connection block (102) is also provided with a plurality of arc-shaped protrusions (109), and the arc-shaped protrusions (109) are slidably connected to the inner wall of the pull plate channel (201).

3. A tolerance compensation mechanism for a direct-drive sunshade according to claim 1 or 2, characterized in that: The compensation structure (1) further comprises two pull-wire bodies (108), one end of each of the two pull-wire bodies (108) being connected to two connection blocks (102) respectively.

4. The tolerance compensation mechanism of a direct-drive sunshade according to claim 3, characterized in that: Both ends of the pull plate channel (201) are plugged with plug plates (301), and the ends of the two plug plates (301) that are away from each other are fixedly connected with sunshade sliding feet (3), and the two sunshade sliding feet (3) are provided with arc grooves (303), and the pull wire body (108) passes through the arc grooves (303), and the arc grooves (303) are used to guide the pull wire body (108).

5. The tolerance compensation mechanism of a direct-drive sunshade according to claim 4, characterized in that: The elastic compensation member (101) is a tension spring.

6. A tolerance compensation mechanism for a direct-drive sunshade according to claim 4 or 5, characterized in that: The elastic compensation piece (101) and the connection block (102), and the wire drawing body (108) and the connection block (102) are fixedly connected or detachably connected.

7. A tolerance compensation mechanism for a direct-drive sunshade according to claim 6, characterized in that: in, The elastic compensation piece (101) and the connection block (102), and the pull wire body (108) and the connection block (102) are detachably connected; A first connecting member is provided between the elastic compensation member (101) and the connecting block (102), and a second connecting member is provided between the pull wire body (108) and the connecting block (102).

8. The tolerance compensation mechanism of a direct-drive sunshade according to claim 7, characterized in that: The first connecting member comprises a first slot (104) provided on the connecting block (102), and one end of the elastic compensating member (101) is inserted into the first slot (104).

9. The tolerance compensation mechanism of a direct-drive sunshade according to claim 8, characterized in that: The first connecting member further comprises a connecting column (103) fixedly mounted on the side of the connecting block (102), and the outer surface of the connecting column (103) is plugged into the elastic compensation member (101).

10. The tolerance compensation mechanism of a direct-drive sunshade according to claim 9, characterized in that: The second connecting member comprises a second slot (106) and a through hole (105) provided on the connecting block (102); the through hole (105) is connected to the second slot (106); a wire draw buckle (107) is inserted into the second slot (106); one end of the wire draw body (108) passes through the through hole (105) and is fixedly connected to the wire draw buckle (107).

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