Roller shutter damper and roller shutter

Abstract

The utility model provides a roller shutter damper which comprises a motion auxiliary mechanism, a rotating mechanism, a damping matching mechanism, a first damping matching structure and a second damping matching structure, the rotating mechanism is rotatably arranged on a motion conversion mechanism, and the rotating mechanism is located on one side of the damping matching mechanism; the motion assisting mechanism is used for driving the rotating mechanism to get close to and get away from the damping matching mechanism by utilizing the rotating motion of the rotating mechanism; one of the first damping matching structure and the second damping matching structure is arranged on the side, facing the damping matching mechanism, of the rotating mechanism, and the other one of the first damping matching structure and the second damping matching structure is arranged on the side, facing the rotating mechanism, of the damping matching mechanism; the first damping matching structure has the length in the rotating direction of the rotating mechanism, the second damping matching structure is columnar, and the curtain body can be rapidly buffered in the final stage of retraction and rising, the damping effect is good, and the service life is long. The utility model further provides a roller shutter.

Description

Technical Field

[0001] The utility model relates to the field of rolling curtains, in particular to a rolling curtain damper and a rolling curtain. Background Art

[0002] Roller blinds are one type of window decoration products, suitable for a variety of places, such as business office buildings, hotels, restaurants, offices, and homes. When the blinds are lowered, they can soften the indoor light and protect against direct sunlight, achieving a good sunshade effect. When the blinds are raised, their volume is very small, so that they are not easily noticed. Existing spring roller blinds use springs to achieve the retraction and rise of the blinds. In order to avoid a violent collision between the lower edge of the blind and the roller blind shell, a damper is usually set to play a buffering role during the rising process of the blind. However, the dampers currently on the market usually buffer during the entire process of the curtain rising, which not only affects the rising speed of the curtain, but also shortens the life of the damper. Alternatively, some existing dampers use their buffering effect in the final stage of the curtain rising process to solve the problem of the curtain rising speed. However, the dampers currently on the market that have their buffering effect in the final stage usually do not buffer in time and have poor buffering effects. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the utility model provides a rolling curtain damper, which has a first damping matching structure and a second damping matching structure arranged relatively to each other, and when the rotating mechanism rotates in the first direction, the first damping matching structure and the second damping matching structure are close to each other and finally contact each other for damping matching, and the above structure realizes rapid buffering in the final stage of the curtain body retracting and rising; the above structure has a good damping effect, and even if the first damping matching structure and the second damping matching structure are slightly worn, the two can still be contacted and damped, and the service life is long. The utility model also provides a rolling curtain.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A roller blind damper, comprising a motion assisting mechanism, a rotating mechanism, a damping matching mechanism, a first damping matching structure, and a second damping matching structure, wherein the rotating mechanism is rotatably arranged on the motion conversion mechanism, and the rotating mechanism is located on one side of the damping matching mechanism; the motion assisting mechanism is used to drive the rotating mechanism to approach the damping matching mechanism by using the rotating movement of the rotating mechanism along a first direction, and to drive the rotating mechanism to move away from the damping matching mechanism by using the rotating movement of the rotating mechanism along a second direction opposite to the first direction;

[0006] One of the first damping matching structure and the second damping matching structure is arranged on a side of the rotating mechanism facing the damping matching structure, and the other of the first damping matching structure and the second damping matching structure is arranged on a side of the damping matching structure facing the rotating mechanism;

[0007] The first damping matching structure has a length along the rotation direction of the rotating mechanism, the second damping matching structure is columnar, and when the rotating mechanism rotates along the first direction, the projection of the second damping matching structure toward one side of the first damping matching structure can be located on a motion trajectory of the first damping matching structure rotating relative to the second damping matching structure;

[0008] Along the direction of the rotating mechanism approaching and moving away from the damping matching mechanism, an end surface of one side of the first damping matching structure facing the second damping matching structure and an end surface of one side of the second damping matching structure facing the first damping matching structure can be damping matched in a contact state.

[0009] The motion trajectory of the first damping matching structure rotating relative to the second damping matching structure can be understood as follows: in practice, no matter whether the first damping matching structure rotates with the rotating mechanism or the second damping matching structure rotates with the rotating mechanism, the second damping matching structure is regarded as stationary, and the first damping matching structure rotates relative to the second damping matching structure.

[0010] With the above structure, when the curtain body in the rolling curtain mechanism retracts under the action of the winding spring, the rotating mechanism will be driven to rotate along the first direction. At this time, with the cooperation of the motion auxiliary mechanism, the rotating mechanism moves to the side close to the damping matching mechanism. Since the projection of the second damping matching structure toward the side of the first damping matching structure can be located on the motion trajectory of the first damping matching structure rotating relative to the second damping matching structure, in the final stage of the curtain body retracting and rising, the end face of the second damping matching structure toward the first damping matching structure will contact and dampingly match with the end face of the first damping matching structure toward the side of the second damping matching structure, and since the first damping matching structure has a length along the rotation direction of the rotating mechanism, the second damping matching structure will slide on the first damping matching structure for a distance, further improving the damping matching effect; the above structure realizes rapid buffering in the final stage of the curtain body retracting and rising; the above structure has a good damping effect, and even if the first damping matching structure and the second damping matching structure are slightly worn during long-term use, the two can still be in contact and dampingly matched, and the service life is long.

[0011] Further, the first damping matching structure is movably arranged on one of the rotating mechanism and the damping matching structure, and the second damping matching structure is arranged on the other of the rotating mechanism and the damping matching structure; and the first damping matching structure has a first working position in which a projection of the second damping matching structure toward one side of the first damping matching structure can be located on a motion trajectory of the first damping matching structure rotating relative to the second damping matching structure, and a second working position in which a projection of the second damping matching structure toward one side of the second damping matching structure is not located on the motion trajectory of the first damping matching structure rotating relative to the second damping matching structure during the activity.

[0012] Or the second damping matching structure is movably arranged on one of the rotating mechanism and the damping matching mechanism, and the first damping matching structure is arranged on the other of the rotating mechanism and the damping matching mechanism; and the second damping matching structure has a third working position during the activity, in which the projection of the second damping matching structure toward the side of the first damping matching structure can be located on the motion trajectory of the first damping matching structure rotating relative to the second damping matching structure, and a fourth working position in which the projection of the second damping matching structure toward the side of the second damping matching structure is not located on the motion trajectory of the first damping matching structure rotating relative to the second damping matching structure.

[0013] By adopting the above structure, the structural setting of the rolling shutter damper is more reasonable; when the rotating mechanism rotates in the first direction, it is necessary to make the first damping matching structure move to the first working position or the second damping matching structure move to the third working position, even if the projection of the second damping matching structure toward one side of the first damping matching structure is located on the movement trajectory of the first damping matching structure rotating relative to the second damping matching structure, at this time, the first damping matching structure and the second damping matching structure are relative to each other so as to make the damping matching until the curtain body retracts and rises, and the first damping matching structure and the second damping matching structure may overlap in the direction of the rotation axis of the rotating mechanism, that is, the side surface of the first damping matching structure and the side surface of the second damping matching structure may abut against each other, especially when there are multiple second damping matching structures.

[0014] When the rotating mechanism rotates in the second direction, it is necessary to move the first damping matching structure to the second working position or the second damping matching structure to the fourth working position, that is, the projection of the second damping matching structure toward the side of the second damping matching structure is not located on the motion trajectory of the first damping matching structure rotating relative to the second damping matching structure. At this time, the first damping matching structure and the second damping matching structure are misaligned to avoid the side of the first damping matching structure and the side of the second damping matching structure abutting against each other and affecting the rotation of the rotating mechanism in the second direction.

[0015] Further, the roller blind damper includes a return member, and along the second direction of rotation of the rotating mechanism, a guide surface is formed on the side wall of one end of the first damping matching structure that is first close to the second damping matching structure, that is, along the second direction of rotation of the rotating mechanism, the guide surface is formed on the head of the first damping matching structure;

[0016] When the first damping matching structure is movably arranged on one of the rotating mechanism and the damping matching mechanism, the return member acts on the first damping matching structure and makes the first damping matching structure always have a tendency to move toward the first working position, and when the rotating mechanism rotates along the second direction, the guide surface is used to contact and cooperate with the second damping matching structure to guide the first damping matching structure to move toward the second working position;

[0017] When the second damping cooperation structure is movably arranged on one of the rotating mechanism and the damping cooperation mechanism, the return member acts on the second damping cooperation structure and makes the second damping cooperation structure always tend to move toward the third working position, and when the rotating mechanism rotates along the second direction, the guide surface is used to contact and cooperate with the second damping cooperation structure to guide the second damping cooperation structure to move toward the fourth working position.

[0018] Along the second direction of rotation of the rotating mechanism, the head of the first damping matching structure can be understood as one end of the first damping matching structure being the head and the other end being the tail, and the direction from the tail to the head matches the second direction of rotation of the rotating mechanism.

[0019] By adopting the above structure, the structure of the roller blind damper is more reasonable; when the rotating mechanism is away from the damping matching structure, the first damping matching structure is automatically located at the first working position under the action of the return member or the second damping matching structure is automatically located at the second working position under the action of the return member, so that the first damping matching structure can achieve damping matching with the second damping matching structure relative to each other;

[0020] When the rotating mechanism is close to the damping matching structure, the first damping matching structure and the second damping matching structure will overlap on the rotation axis of the rotating mechanism. At this time, when the rotating mechanism rotates along the second direction, the second damping matching structure will contact the guide surface of the first damping matching structure to automatically guide the first damping matching structure to move to the second working position or automatically guide the second damping matching structure to move to the fourth working position, thereby achieving the misalignment of the first damping matching structure and the second damping matching structure to avoid the first damping matching structure and the second damping matching structure from rotating the rotating mechanism along the second direction. The above structure makes it easier and more convenient to use.

[0021] Further, one end of the first damping matching structure is formed as a free end, and the other end is formed as a connecting end; the first damping matching structure is rotatably arranged on one of the rotating mechanism and the damping matching mechanism by relying on the connecting end, and the rotation axis of the first damping matching structure is parallel to the rotation axis of the rotating mechanism, when the free end of the first damping matching structure is away from the axis of the rotating mechanism, the first damping matching structure is located in the first working position, and when the free end of the first damping matching structure is close to the axis of the rotating mechanism, the first damping matching structure is located in the second working position.

[0022] By adopting the above structure, the first damping matching structure is configured as an active setting, so that the overall structural setting is more reasonable, and the activity of the first damping matching structure is more reliable and stable than that of the second damping matching structure; the first damping matching structure is rotated, making the overall structure simpler and convenient for actual production.

[0023] Further, the return member includes an elastic member, one end of the elastic member is connected to a rotating mechanism or a damping matching structure provided with the first damping matching structure, and the other end is connected to a connecting end of the first damping matching structure, and the connection between the first damping matching structure and the elastic member and the free end of the first damping matching structure are respectively located on both sides of the rotation axis of the first damping matching structure; the elastic member acts on the connecting end of the first damping matching structure so that the connecting end of the first damping matching structure always has a tendency to move toward the side close to the axis of the rotating mechanism.

[0024] By adopting the above structure, the elasticity of the elastic member is used to ensure that the first damping matching structure always has a tendency to move toward the first working position; specifically, the elastic member acts on the first damping matching structure so that the connecting end of the first damping matching structure always has a tendency to move toward the axis side of the rotating mechanism. At this time, the free end of the first damping matching structure has a tendency to move away from the axis side of the rotating mechanism, that is, the first damping matching structure always has a tendency to move toward the first working position.

[0025] Furthermore, the rotating mechanism or the damping matching mechanism provided with the first damping matching structure is provided with a limited abutment portion on the outer protrusion of the first damping matching structure away from the rotation axis of the rotating mechanism. When the first damping matching structure is located in the first working position, the outer side of the first damping matching structure away from the rotation axis of the rotating mechanism abuts against the limited abutment portion.

[0026] With the above structure, the setting of the limiting abutment portion is used to limit the range of movement of the first damping matching structure away from the rotation axis side of the rotating mechanism, so that under the action of the elastic member, the first damping matching structure can ensure to be located in the first working position. The above structure makes the overall structural setting more reasonable.

[0027] Furthermore, the outer wall of the first damping matching structure away from the axis side of the rotating mechanism is formed as an outer side wall of the first damping matching structure, and along the second direction of rotation of the rotating mechanism, the outer side wall of the first damping matching structure is at least first arc-shaped on the side close to the second damping matching structure, and the distance between the side of the arc-shaped part of the outer side wall of the first damping matching structure that first approaches the second damping matching structure and the axis side of the rotating mechanism is smaller than the distance between the second damping matching structure and the axis side of the rotating mechanism, and the distance between the side of the arc-shaped part of the outer side wall of the first damping matching structure that later approaches the second damping matching structure and the axis side of the rotating mechanism is greater than the distance between the second damping matching structure and the axis side of the rotating mechanism.

[0028] With the above structure, the arc-shaped portion of the outer side wall of the first damping matching structure is formed as the guide surface. The above structure is simple, reasonable and reliable. Specifically, the outer side wall of the first damping matching structure is arc-shaped as a whole.

[0029] Furthermore, the elastic member adopts a return torsion spring, the axis of the return torsion spring is parallel to the axis of the rotating mechanism, and the rotating mechanism or the damping matching structure provided with the first damping matching structure is protruded with an elastic member abutting boss, and the connecting end of the first damping matching structure is provided with an elastic member fixing through hole, one pin of the return torsion spring abuts against the elastic member abutting boss, and the other pin is bent to the side parallel to the axis of the return torsion spring to be passed through the elastic member fixing through hole.

[0030] By adopting the above structure, the arrangement of the elastic member is more reasonable, so that the elastic member can realize its function more reasonably and reliably.

[0031] Furthermore, the motion assisting mechanism is arranged at a rotation axis that passes through the rotation mechanism, and an avoidance groove is arranged on a side of the first damping matching structure that is away from the axis side of the rotation mechanism.

[0032] The above structure makes the first damping matching structure more reasonable.

[0033] Furthermore, the second damping matching structure is provided in plurality, and the plurality of the second damping matching structures are distributed around the axis of the rotating mechanism at intervals;

[0034] Specifically, the plurality of the second damping matching structures are distributed at equal intervals, and three of the second damping matching structures are provided.

[0035] With the above structure, a plurality of the second damping matching structures are provided, so that the second damping matching structure can better and more effectively perform damping matching with the first damping matching structure;

[0036] Further, when the first damping matching structure is arranged on the rotating mechanism and the second damping matching structure is arranged on the damping matching mechanism, along the first direction of rotation of the rotating mechanism, the end surface of one side of the first damping matching structure facing the damping matching mechanism has a damping matching surface which is gradually inclined toward one side of the damping matching mechanism;

[0037] When the first damping matching structure is arranged on the damping matching structure and the second damping matching structure is arranged on the rotating mechanism, along the first direction of rotation of the rotating mechanism, the end face of the second damping matching structure on one side facing the rotating mechanism has a damping matching surface which gradually tilts away from the rotating mechanism.

[0038] By adopting the above structure, when the rotating mechanism moves toward the damping matching structure, the first damping matching structure and the second damping matching structure will get closer and closer. The above structure can make the first damping matching structure and the second damping matching structure slide smoothly when they contact each other for damping matching, and can better achieve buffering, so as to avoid the situation that the two cannot slide smoothly, causing the rotating mechanism to freeze or stop suddenly; the above structure makes the first damping matching structure more reasonable.

[0039] Furthermore, along the first direction of rotation of the rotating mechanism, the side wall of the first damping matching structure is first recessed near one end of the second damping matching structure to form a locking groove matching the second damping matching structure, that is, along the first direction of rotation of the rotating mechanism, the side wall of the head of the first damping matching structure is provided with the locking groove.

[0040] Along the first direction of rotation of the rotating mechanism, the head of the first damping matching structure can be understood as one end of the first damping matching structure being the head and the other end being the tail, and the direction from the tail to the head matches the first direction of rotation of the rotating mechanism.

[0041] By adopting the above structure, when the curtain body finally retracts and rises, the first damping matching structure and the second damping matching structure overlap in the direction of the rotation axis of the rotating mechanism, that is, the side wall of the first damping matching structure and the side wall of the second damping matching structure abut against each other, and the setting of the locking groove enables the second damping matching structure to better abut against the first damping matching structure, thereby achieving the rotation braking of the rotating mechanism, that is, limiting the rotating mechanism from continuing to rotate in the first direction.

[0042] Furthermore, the motion-assisting mechanism includes a screw, which extends in a direction approaching and away from the damping matching mechanism; a screw matching hole matching the screw is provided through the rotation axis of the rotating mechanism, and the rotating mechanism is sleeved on the screw through the screw matching hole, and a matching thread matching the screw is provided on at least part of the inner wall of the screw matching hole.

[0043] By adopting the above structure, the screw rod cooperates with the matching thread in the screw rod matching hole, so that the rotation of the rotating mechanism is utilized to drive the rotating mechanism to approach and move away from the damping matching mechanism. The above structure is simple, reasonable and reliable in operation.

[0044] Furthermore, a first limiting block is protruding from the end surface of one side of the rotating mechanism facing the damping matching mechanism on the outside of the screw matching hole, and a second limiting block that can abut and cooperate with the first limiting block is protruding from the outer wall of the screw on the side facing the damping matching mechanism.

[0045] With the above structure, when the rotating mechanism rotates in the first direction, the rotating mechanism will move toward the damping matching mechanism, and the first limiting protrusion will abut against the second limiting protrusion to limit the rotating mechanism from continuing to rotate in the first direction, thereby limiting the curtain body from continuing to retract and rise;

[0046] The roller blind damper is provided with a plurality of locations for limiting the rotation of the rotating mechanism in the first direction, thereby preventing the blind body from retracting and rising excessively.

[0047] Furthermore, one side of the first limiting protrusion extends toward one end face of the rotating mechanism toward the damping matching mechanism to form a transition portion with a slope; and the side of the second limiting protrusion away from the damping matching mechanism forms a transition matching inclined surface matching the transition portion.

[0048] By adopting the above structure, the structural arrangement of the first limiting protrusion and the second limiting protrusion is more reasonable, so that the two can cooperate better.

[0049] Further, the first damping matching structure is arranged on the rotating mechanism, and the second damping matching structure is arranged on the damping matching mechanism.

[0050] By adopting the above structure, the arrangement of the first damping matching structure and the second damping matching structure is more reasonable.

[0051] Further, the rotating mechanism includes a rotating seat and a rotating cover. The rotating cover cooperates with the motion assisting mechanism to achieve approaching and moving away from the damping matching mechanism through the rotation of the rotating cover. The rotating seat is coaxially arranged with the rotating cover and connected to the rotating cover to achieve synchronous movement of the two. One of the first damping matching structure and the second damping matching structure is arranged on the rotating seat.

[0052] The above structure makes the structural setting of the rotating mechanism more reasonable. Specifically, the screw matching hole and the first limiting protrusion are arranged on the rotating cover, and a matching exposure hole for exposing the screw matching hole and the first limiting protrusion is arranged at the axis of the rotating seat.

[0053] Furthermore, a torsion spring groove is recessed on one side of the rotating seat, and the rotating cover is arranged on the side of the rotating seat where the torsion spring groove is arranged, a connecting torsion spring is arranged in the torsion spring groove, the axis of the connecting torsion spring is colinear with the axis of the rotating seat, one end of the connecting torsion spring is connected and abutted against the torsion spring groove, and the other end is connected and abutted against the rotating cover; the rotating seat is provided with a connecting buckle on the outer side of the rotating cover for buckling on the edge of the rotating cover.

[0054] By adopting the above structure, the connection between the rotating seat and the rotating cover is realized to achieve synchronous movement of the two; specifically, the setting of the connecting torsion spring enables the rotating seat and the rotating cover to be connected in the rotation direction to achieve synchronous rotation of the two; the setting of the connecting buckle enables the rotating seat and the rotating cover to be connected on the rotation axis of the rotating mechanism to achieve synchronous movement of the two along the rotation axis of the rotating mechanism, that is, synchronous movement in the direction of approaching and moving away from the damping matching mechanism; the above structure makes the structure of the rotating mechanism more reasonable and reliable.

[0055] Furthermore, the damping fitting mechanism includes a damping mounting member and a damper connecting member having a mounting shaft; the damping mounting member is sleeved outside the damper connecting member, and the damping mounting member is provided with an avoidance through hole at the mounting shaft for connecting the mounting shaft with the motion assisting mechanism; the other of the first damping fitting structure and the second damping fitting structure is arranged on the damping mounting member.

[0056] The above structure makes the structure of the damping matching mechanism more reasonable and reliable.

[0057] Furthermore, the damper connecting shaft includes a damper sleeve, a damper connecting shaft, and a damper sealing cover, wherein the damper sleeve is sleeved outside the damper connecting shaft, the damper connecting shaft has the mounting shaft, the damper sealing cover is covered on the side of the damper sleeve facing the mounting shaft, and the mounting shaft passes through the damper sealing cover; a sealing ring is outerly disposed on the mounting shaft, and the sealing ring is located between the damper seal and the damper connecting shaft.

[0058] The above structure makes the structure of the damper connecting shaft more reasonable and reliable.

[0059] Furthermore, the damping fitting mechanism outer shell is provided with a supporting outer shell for installing and fixing the damping fitting mechanism.

[0060] With the above structure, the support sleeve is provided to achieve the installation and fixation of the damping matching mechanism.

[0061] A rolling blind comprises the above-mentioned rolling blind damper and a rolling blind mechanism, wherein the rolling blind mechanism is connected to a rotating mechanism of the rolling blind damper, and when the blind body in the rolling blind mechanism is in an extended state, the rolling blind mechanism drives the rotating mechanism to rotate in a second direction, and when the blind body in the rolling blind mechanism is in a retracted state, the rolling blind mechanism drives the rotating mechanism to rotate in a first direction.

[0062] By adopting the above structure, the curtain body can quickly buffer in the final stage of retraction and rise, and the buffering effect is good, stable and reliable; during the long-term use of the rolling curtain damper, the first damping matching structure and the second damping matching structure are slightly worn, but the two can still achieve contact and damping matching, and have a long service life.

[0063] Compared with the prior art, the utility model has the following beneficial effects:

[0064] (1) The roller blind damper and roller blind of the utility model have a first damping matching structure and a second damping matching structure that are relatively arranged, and when the rotating mechanism rotates in the first direction, the first damping matching structure and the second damping matching structure are brought close to each other and finally contact each other for damping matching. The above structure can achieve rapid buffering in the final stage of the curtain body retracting and rising. The above structure has a good damping effect, and even if the first damping matching structure and the second damping matching structure are slightly worn during long-term use, the two can still achieve contact and damping matching, and have a long service life.

[0065] (2) The first damping cooperation structure or the second damping cooperation structure of the roller blind damper and roller blind of the utility model is movably arranged so that when the rotating member mechanism rotates along the first direction, the first damping cooperation structure and the second damping cooperation structure can perform damping cooperation in the final stage. When the rotating member mechanism rotates along the second direction, the first damping cooperation structure and the second damping cooperation structure are prevented from affecting the rotation of the rotating mechanism in the second direction.

[0066] (3) The roller shutter damper and roller shutter of the utility model have reasonable structural arrangement and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0068] Figure 1 It is a three-dimensional structural schematic diagram of the rolling curtain damper of the utility model;

[0069] Figure 2 It is a schematic diagram of the cooperation between the first damping cooperation structure and the second damping cooperation structure in the roller blind damper of the utility model;

[0070] Figure 3 It is a three-dimensional structural schematic diagram of the first damping matching structure in the rolling curtain damper of the utility model;

[0071] Figure 4It is a schematic diagram of the exploded structure of the rotating mechanism in the rolling curtain damper of the utility model;

[0072] Figure 5 It is a schematic diagram of the exploded structure of the damping matching mechanism in the roller shutter damper of the utility model;

[0073] Figure 6 It is a schematic diagram of the matching structure between the screw rod and the rotating cover in the roller shutter damper of the utility model;

[0074] The names of the components corresponding to the various reference numerals in the figure are: 1. motion assisting mechanism; 101. screw; 1011. second limiting protrusion; 1011a. transition matching slope; 2. rotating mechanism; 201. screw matching hole; 2011. matching thread; 202. first limiting protrusion; 203. transition part; 204. rotating seat; 2041. torsion spring groove; 2042. connecting buckle; 2043. matching exposure hole; 205. rotating cover; 206. connecting torsion spring; 3. damping matching mechanism; 301. damping mounting member; 3011. avoidance through hole; 302. damper Connecting piece; 3021, mounting shaft; 3022, damper sleeve; 3023, damper connecting shaft; 3024, damper sealing cover; 3025, sealing ring; 4, first damping matching structure; 401, guiding surface; 402, free end; 403, connecting end; 404, outer wall of first damping matching structure; 405, elastic member fixing through hole; 406, avoidance groove; 407, damping matching surface; 408, locking groove; 5, second damping matching structure; 6, return piece; 601, elastic member; 7, limiting abutment portion; 8, elastic member abutting boss; 9, supporting sleeve. DETAILED DESCRIPTION

[0075] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0076] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0077] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0078] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0079] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0080] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0082] See also Figures 1 to 6 The utility model provides a roller blind damper, comprising a motion assisting mechanism 1, a rotating mechanism 2, a damping matching mechanism 3, a first damping matching structure 4, and a second damping matching structure 5, wherein the rotating mechanism 2 is rotatably arranged on the motion conversion mechanism, and the rotating mechanism 2 is located on one side of the damping matching mechanism 3; the motion assisting mechanism 1 is used to drive the rotating mechanism 2 to approach the damping matching mechanism 3 by means of the rotating movement of the rotating mechanism 2 along a first direction, and to drive the rotating mechanism 2 to move away from the damping matching mechanism 3 by means of the rotating movement of the rotating mechanism 2 along a second direction opposite to the first direction;

[0083] One of the first damping matching structure 4 and the second damping matching structure 5 is arranged on a side of the rotating mechanism 2 facing the damping matching structure 3, and the other of the first damping matching structure 4 and the second damping matching structure 5 is arranged on a side of the damping matching structure 3 facing the rotating mechanism 2;

[0084] The first damping matching structure 4 has a length along the rotation direction of the rotating mechanism 2, the second damping matching structure 5 is columnar, and when the rotating mechanism 2 rotates along the first direction, the projection of the second damping matching structure 5 toward one side of the first damping matching structure 4 can be located on the motion trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5;

[0085] Along the direction of the rotating mechanism 2 approaching and moving away from the damping matching mechanism 3, the end surface of one side of the first damping matching structure 4 facing the second damping matching structure 5 and the end surface of one side of the second damping matching structure 5 facing the first damping matching structure 4 can be damping matched in a contact state.

[0086] The motion trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5 can be understood as follows: in practice, no matter whether the first damping matching structure 4 rotates with the rotating mechanism 2 or the second damping matching structure 5 rotates with the rotating mechanism 2, the second damping matching structure 5 is regarded as stationary, then the first damping matching structure 4 rotates relative to the second damping matching structure 5.

[0087] With the above structure, when the curtain body in the rolling curtain mechanism retracts under the action of the winding spring, the rotating mechanism 2 will be driven to rotate in the first direction. At this time, with the cooperation of the motion auxiliary mechanism 1, the rotating mechanism 2 moves toward the side close to the damping matching mechanism 3. Since the projection of the second damping matching structure 5 toward the side of the first damping matching structure 4 can be located on the motion trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5, in the final stage of the curtain body retracting and rising, the end surface of the second damping matching structure 5 toward the first damping matching structure 4 will contact the first damping matching structure 4. The damping matching structure 4 contacts and engages with one side end face of the second damping matching structure 5, and since the first damping matching structure 4 has a length along the rotation direction of the rotating mechanism 2, the second damping matching structure will slide a distance on the first damping matching structure 4, further improving the damping matching effect; the above structure realizes rapid buffering in the final stage of the retraction and rise of the curtain body; the damping effect of the above structure is good, and even if the first damping matching structure 4 and the second damping matching structure 5 are slightly worn during long-term use, the two can still achieve contact and damping matching, and have a long service life.

[0088] Further, the first damping matching structure 4 is movably arranged on one of the rotating mechanism 2 and the damping matching structure 3, and the second damping matching structure 5 is arranged on the other of the rotating mechanism 2 and the damping matching structure 3; and the first damping matching structure 4 has a first working position in which the projection of the second damping matching structure 5 toward one side of the first damping matching structure 4 can be located on a motion trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5, and a second working position in which the projection of the second damping matching structure 5 toward one side of the second damping matching structure 5 is not located on the motion trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5 during the activity.

[0089] Or the second damping matching structure 5 is movably arranged on one of the rotating mechanism 2 and the damping matching mechanism 3, and the first damping matching structure 4 is arranged on the other of the rotating mechanism 2 and the damping matching mechanism 3; and the second damping matching structure 5 has a third working position during the activity, in which the projection of the second damping matching structure 5 toward the side of the first damping matching structure 4 can be located on the motion trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5, and a fourth working position in which the projection of the second damping matching structure 5 toward the side of the second damping matching structure 5 is not located on the motion trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5.

[0090] By adopting the above structure, the structural setting of the rolling shutter damper is more reasonable; when the rotating mechanism 2 rotates in the first direction, it is necessary to make the first damping matching structure 4 move to the first working position or the second damping matching structure 5 move to the third working position, even if the projection of the second damping matching structure 5 toward the first damping matching structure 4 is located on the movement trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5, at this time, the first damping matching structure 4 and the second damping matching structure 5 are relative to each other so as to make the damping matching until the curtain body retracts and rises, and the first damping matching structure 4 and the second damping matching structure 5 may overlap in the direction of the rotation axis of the rotating mechanism 2, that is, the side surface of the first damping matching structure 4 and the side surface of the second damping matching structure 5 may abut against each other, especially when there are multiple second damping matching structures 3.

[0091] When the rotating mechanism 2 rotates in the second direction, it is necessary to move the first damping matching structure 4 to the second working position or the second damping matching structure 5 to the fourth working position, that is, the projection of the second damping matching structure 5 toward the side of the second damping matching structure 5 is not located on the motion trajectory of the first damping matching structure 4 rotating relative to the second damping matching structure 5. At this time, the first damping matching structure 4 and the second damping matching structure 5 are misaligned to avoid the side of the first damping matching structure 4 and the side of the second damping matching structure 5 abutting against each other and affecting the rotation of the rotating mechanism 2 in the second direction.

[0092] Further, the roller blind damper includes a return member 6, and along the second direction of rotation of the rotating mechanism 2, a guide surface 401 is formed on the side wall of one end of the first damping matching structure 4 that is first close to the second damping matching structure 5, that is, along the second direction of rotation of the rotating mechanism 2, the head of the first damping matching structure 4 is formed with the guide surface 401;

[0093] When the first damping matching structure 4 is movably arranged on one of the rotating mechanism 2 and the damping matching structure 3, the return member 6 acts on the first damping matching structure 4 and makes the first damping matching structure 4 always have a tendency to move toward the first working position, and when the rotating mechanism 2 rotates along the second direction, the guide surface 401 is used to contact and cooperate with the second damping matching structure 5 to guide the first damping matching structure 4 to move toward the second working position;

[0094] When the second damping matching structure 5 is movably arranged on one of the rotating mechanism 2 and the damping matching mechanism 3, the return member 6 acts on the second damping matching structure 5 and makes the second damping matching structure 5 always have a tendency to move toward the third working position, and when the rotating mechanism 2 rotates along the second direction, the guide surface 401 is used to contact and cooperate with the second damping matching structure 5 to guide the second damping matching structure 5 to move toward the fourth working position.

[0095] Along the second direction of rotation of the rotating mechanism 2, the head of the first damping matching structure 4 can be understood as one end of the first damping matching structure 4 being the head and the other end being the tail, and the direction from the tail to the head matches the second direction of rotation of the rotating mechanism 2.

[0096] The above structure makes the structure of the roller blind damper more reasonable; when the rotating mechanism 2 is away from the damping matching structure, the first damping matching structure 4 is automatically located at the first working position under the action of the return member 6 or the second damping matching structure 5 is automatically located at the second working position under the action of the return member 6, so that the first damping matching structure 4 can achieve damping matching with the second damping matching structure 5 relative to each other;

[0097] When the rotating mechanism 2 is close to the damping matching structure, the first damping matching structure 4 and the second damping matching structure 5 will overlap on the rotation axis of the rotating mechanism 2. At this time, when the rotating mechanism 2 rotates along the second direction, the second damping matching structure 5 will contact the guide surface 401 of the first damping matching structure 4 to automatically guide the first damping matching structure 4 to move to the second working position or automatically guide the second damping matching structure 5 to move to the fourth working position, thereby realizing the misalignment of the first damping matching structure 4 and the second damping matching structure 5 to avoid the first damping matching structure 4 and the second damping matching structure 5 from rotating the rotating mechanism 2 along the second direction. The above structure makes it easier and more convenient to use.

[0098] Further, one end of the first damping matching structure 4 is formed as a free end 402, and the other end is formed as a connecting end 403; the first damping matching structure 4 is rotatably set on one of the rotating mechanism 2 and the damping matching mechanism 3 by relying on its connecting end 403, and the rotation axis of the first damping matching structure 4 is parallel to the rotation axis of the rotating mechanism 2, when the free end 402 of the first damping matching structure 4 is away from the axis of the rotating mechanism 2, the first damping matching structure 4 is located in the first working position, and when the free end 402 of the first damping matching structure 4 is close to the axis of the rotating mechanism 2, the first damping matching structure 4 is located in the second working position.

[0099] By adopting the above structure, the first damping matching structure 4 is configured as an active setting, so that the overall structural setting is more reasonable, and the activity of the first damping matching structure 4 is more reliable and stable than the activity of the second damping matching structure 5; the first damping matching structure 4 is rotated, which makes the overall structure simpler and convenient for actual production.

[0100] Further, the return member 6 includes an elastic member 601, one end of the elastic member 601 is connected to the rotating mechanism 2 or the damping matching structure provided with the first damping matching structure 4, and the other end is connected to the connecting end 403 of the first damping matching structure 4, and the connection between the first damping matching structure 4 and the elastic member 601 and the free end 402 of the first damping matching structure 4 are respectively located on both sides of the rotation axis of the first damping matching structure 4; the elastic member 601 acts on the connecting end 403 of the first damping matching structure 4 so that the connecting end 403 of the first damping matching structure 4 always has a tendency to move toward the axis side of the rotating mechanism 2.

[0101] By adopting the above structure, the elasticity of the elastic member 601 is used to achieve that the first damping matching structure 4 always has a tendency to move toward the first working position; specifically, the elastic member 601 acts on the first damping matching structure 4, so that the connecting end 403 of the first damping matching structure 4 always has a tendency to move toward the axis side of the rotating mechanism 2. At this time, the free end 402 of the first damping matching structure 4 has a tendency to move away from the axis side of the rotating mechanism 2, that is, the first damping matching structure 4 always has a tendency to move toward the first working position.

[0102] Furthermore, the rotating mechanism 2 or the damping matching mechanism 3 provided with the first damping matching structure 4 is provided with a limited abutment portion 7 on the outer side protrusion of the first damping matching structure 4 away from the rotation axis of the rotating mechanism 2. When the first damping matching structure 4 is located in the first working position, the first damping matching structure 4 abuts against the limited abutment portion 7 on the outer side away from the rotation axis of the rotating mechanism 2.

[0103] With the above structure, the setting of the limiting abutment portion 7 is used to limit the range of movement of the first damping matching structure 4 away from the rotation axis side of the rotating mechanism 2, so that under the action of the elastic member 601, the first damping matching structure 4 can ensure to be located in the first working position. The above structure makes the overall structural setting more reasonable.

[0104] Furthermore, the outer wall of the first damping matching structure 4 away from the axis side of the rotating mechanism 2 is formed as an outer side wall 404 of the first damping matching structure. Along the second direction of rotation of the rotating mechanism 2, the outer side wall 404 of the first damping matching structure at least first approaches the side of the second damping matching structure 5 and is arc-shaped, and the distance between the side of the arc-shaped part of the outer side wall 404 of the first damping matching structure first and the axis side of the rotating mechanism 2 is smaller than the distance between the second damping matching structure 5 and the axis side of the rotating mechanism 2, and the distance between the side of the arc-shaped part of the outer side wall 404 of the first damping matching structure later and the axis side of the rotating mechanism 2 is greater than the distance between the second damping matching structure 5 and the axis side of the rotating mechanism 2.

[0105] With the above structure, the arc-shaped portion of the outer side wall 404 of the first damping matching structure is formed as the guide surface 401. The above structure is simple, reasonable and reliable. Specifically, the outer side wall 404 of the first damping matching structure 4 is arc-shaped as a whole.

[0106] Furthermore, the elastic member 601 adopts a return torsion spring, the axis of which is parallel to the axis of the rotating mechanism 2, and the rotating mechanism 2 or the damping matching structure provided with the first damping matching structure 4 is provided with an elastic member abutting boss 8, and an elastic member fixing through hole 405 is provided at the connecting end 403 of the first damping matching structure 4, one pin of the return torsion spring abuts against the elastic member abutting boss 8, and the other pin is bent to the side parallel to the axis of the return torsion spring to be passed through the elastic member fixing through hole 405.

[0107] The above structure makes the arrangement of the elastic member 601 more reasonable, so that the elastic member 601 can realize its function more reasonably and reliably.

[0108] Furthermore, the motion assisting mechanism 1 is arranged to penetrate the rotation axis of the rotating mechanism 2 , and an avoidance groove 406 is arranged on a side of the first damping matching structure 4 away from the axis side of the rotating mechanism 2 .

[0109] The above structure makes the first damping matching structure 4 more reasonable.

[0110] Furthermore, the second damping matching structure 5 is provided in plurality, and the plurality of the second damping matching structures 5 are distributed around the axis of the rotating mechanism 2 at intervals;

[0111] Specifically, a plurality of the second damping matching structures 5 are distributed at equal intervals, and three second damping matching structures 5 are provided.

[0112] With the above structure, a plurality of the second damping matching structures 5 are provided, so that the second damping matching structures 5 can better and more effectively perform damping matching with the first damping matching structure 4;

[0113] Further, when the first damping matching structure 4 is arranged on the rotating mechanism 2 and the second damping matching structure 5 is arranged on the damping matching mechanism 3, along the first direction of rotation of the rotating mechanism 2, the end surface of one side of the first damping matching structure 4 facing the damping matching mechanism 3 has a damping matching surface 407 which is gradually inclined toward one side of the damping matching mechanism 3;

[0114] When the first damping matching structure 4 is arranged on the damping matching structure 3 and the second damping matching structure 5 is arranged on the rotating mechanism 2, along the first direction of rotation of the rotating mechanism 2, the second damping matching structure 5 has a damping matching surface 407 on one side end face facing the rotating mechanism 2, which gradually tilts away from the rotating mechanism 2.

[0115] By adopting the above structure, when the rotating mechanism 2 moves toward the damping matching structure side, the first damping matching structure 4 and the second damping matching structure 5 will get closer and closer. The above structure can make the first damping matching structure 4 and the second damping matching structure 5 contact each other for damping matching, so that the two can slide smoothly and the buffering can be better realized to avoid the situation that the two cannot slide smoothly, causing the rotating mechanism 2 to freeze or stop suddenly; the above structure makes the first damping matching structure 4 more reasonable.

[0116] Furthermore, along the first direction of rotation of the rotating mechanism 2, the side wall of the first damping matching structure 4 is first recessed close to one end of the second damping matching structure 5 to form a locking groove 408 matching the second damping matching structure 5, that is, along the first direction of rotation of the rotating mechanism 2, the side wall of the head of the first damping matching structure 4 is provided with the locking groove 408.

[0117] Along the first direction of rotation of the rotating mechanism 2, the head of the first damping matching structure 4 can be understood as one end of the first damping matching structure 4 being the head and the other end being the tail, and the direction from the tail to the head matches the first direction of rotation of the rotating mechanism 2.

[0118] By adopting the above structure, when the curtain body finally retracts and rises, the first damping matching structure 4 and the second damping matching structure 5 overlap in the direction of the rotation axis of the rotating mechanism 2, that is, the side wall of the first damping matching structure 3 and the side wall of the second damping matching structure 5 abut against each other. The setting of the locking groove 408 enables the second damping matching structure 5 to better abut against the first damping matching structure 4, thereby achieving the rotation braking of the rotating mechanism 2, that is, limiting the rotating mechanism 2 from continuing to rotate in the first direction.

[0119] Furthermore, the motion-assisting mechanism 1 includes a screw 101, which extends in a direction approaching and away from the damping matching mechanism 3; a screw matching hole 201 matching the screw 101 is penetrated at the rotation axis of the rotating mechanism 2, and the rotating mechanism 2 is sleeved on the screw 101 through the screw matching hole 201, and a matching thread 2011 matching the screw 101 is provided on at least part of the inner wall of the screw matching hole 201.

[0120] By adopting the above structure, the screw 101 cooperates with the matching thread 2011 in the screw matching hole 201, so as to utilize the rotation of the rotating mechanism 2 to drive the rotating mechanism 2 to approach and move away from the damping matching mechanism 3. The above structure is simple, reasonable and reliable in operation.

[0121] Furthermore, a first limiting protrusion 202 is protruded from the outer side of the screw mating hole 201 on one end face of the rotating mechanism 2 facing the damping mating mechanism 3, and a second limiting protrusion 1011 which can abut and cooperate with the first limiting protrusion 202 is protruded from the outer side wall of the screw 101 facing the damping mating mechanism 3.

[0122] With the above structure, when the rotating mechanism 2 rotates in the first direction, the rotating mechanism 2 will move toward the damping matching mechanism 3, and the first limiting protrusion 202 will abut against the second limiting protrusion 1011 to limit the rotating mechanism 2 from continuing to rotate in the first direction, thereby limiting the curtain body from continuing to retract and rise;

[0123] The roller blind damper is provided with a plurality of locations for limiting the rotation of the rotating mechanism 2 in the first direction, thereby preventing the blind body from retracting and rising excessively.

[0124] Furthermore, one side of the first limiting protrusion 202 extends toward one end face of the rotating mechanism 2 toward the damping matching mechanism 3 to form a transition portion 203 with a slope; the side of the second limiting protrusion 1011 away from the damping matching mechanism 3 forms a transition matching inclined surface 1011a matching the transition portion 203.

[0125] By adopting the above structure, the structural arrangement of the first limiting protrusion 202 and the second limiting protrusion 1011 is more reasonable, so that the two can cooperate better.

[0126] Further, the first damping matching structure 4 is arranged on the rotating mechanism 2 , and the second damping matching structure 5 is arranged on the damping matching mechanism 3 .

[0127] By adopting the above structure, the arrangement of the first damping matching structure 4 and the second damping matching structure 5 is more reasonable.

[0128] Furthermore, the rotating mechanism 2 includes a rotating seat 204 and a rotating cover 205. The rotating cover 205 cooperates with the motion-assisting mechanism 1 to achieve the approach and move away from the damping cooperation mechanism 3 through the rotation of the rotating cover 205. The rotating seat 204 is coaxially arranged with the rotating cover 205 and is connected to the rotating cover 205 to achieve synchronous movement of the two. One of the first damping cooperation structure 4 and the second damping cooperation structure 5 is arranged on the rotating seat 204.

[0129] The above structure makes the structural setting of the rotating mechanism 2 more reasonable. Specifically, the screw mating hole 201 and the first limiting protrusion 202 are arranged on the rotating cover 205, and a mating exposure hole 2043 for exposing the screw mating hole 201 and the first limiting protrusion 202 is provided at the axis of the rotating seat 204.

[0130] Furthermore, a torsion spring groove 2041 is recessed on one side of the rotating seat 204, and the rotating cover 205 is covered on the side of the rotating seat 204 where the torsion spring groove 2041 is provided. A connecting torsion spring 206 is provided in the torsion spring groove 2041, and the axis of the connecting torsion spring 206 is colinear with the axis of the rotating seat 204, one end of the connecting torsion spring 206 is connected and abutted against the torsion spring groove 2041, and the other end is connected and abutted against the rotating cover 205; the rotating seat 204 is provided with a connecting buckle 2042 on the outer side of the rotating cover 205 for buckling on the edge of the rotating cover 205.

[0131] By adopting the above structure, the connection between the rotating seat 204 and the rotating cover 205 is realized to achieve synchronous movement of the two; specifically, the setting of the connecting torsion spring 206 enables the rotating seat 204 and the rotating cover 205 to be connected in the rotation direction to achieve synchronous rotation of the two; the setting of the connecting buckle 2042 enables the rotating seat 204 and the rotating cover 205 to be connected on the rotation axis of the rotating mechanism 2 to achieve synchronous movement of the two along the rotation axis of the rotating mechanism 2, that is, synchronous movement in the direction of approaching and moving away from the damping matching mechanism 3; the above structure makes the structure of the rotating mechanism 2 more reasonable and reliable.

[0132] Furthermore, the damping fitting mechanism 3 includes a damping mounting member 301 and a damper connecting member 302 having a mounting axis 3021; ​​the damping mounting member 301 is sleeved outside the damper connecting member 302, and the damping mounting member 301 is provided with an avoidance through hole 3011 at the mounting axis 3021 for connecting the mounting axis 3021 with the motion assisting mechanism 1; the other of the first damping fitting structure 4 and the second damping fitting structure 5 is arranged on the damping mounting member 301.

[0133] The above structure makes the structure of the damping matching mechanism 3 more reasonable and reliable.

[0134] Furthermore, the damper connecting shaft 3023 includes a damper sleeve 3022, a damper connecting shaft 3023, and a damper sealing cover 3024, the damper sleeve 3022 is sleeved on the outside of the damper connecting shaft 3023, the damper connecting shaft 3023 has the installation shaft 3021, the damper sealing cover 3024 is covered on the side of the damper sleeve 3022 facing the installation shaft 3021, and the installation shaft 3021 passes through the damper sealing cover 3024; the installation shaft 3021 is outer-coated with a sealing ring 3025, and the sealing ring 3025 is located between the damper seal and the damper connecting shaft 3023.

[0135] The above structure makes the structure of the damper connecting shaft 3023 more reasonable and reliable.

[0136] Furthermore, the outer shell of the damping matching mechanism 3 is provided with a supporting outer shell 9 for installing and fixing the damping matching mechanism 3 .

[0137] With the above structure, the support sleeve 9 is provided to achieve the installation and fixation of the damping matching mechanism 3.

[0138] See also Figures 1 to 6A rolling blind comprises the above-mentioned rolling blind damper and a rolling blind mechanism, wherein the rolling blind mechanism is connected to a rotating mechanism 2 of the rolling blind damper, and when the blind body in the rolling blind mechanism is in an extended state, the rolling blind mechanism drives the rotating mechanism 2 to rotate in a second direction, and when the blind body in the rolling blind mechanism is in a retracted state, the rolling blind mechanism drives the rotating mechanism 2 to rotate in a first direction.

[0139] By adopting the above structure, the curtain body can quickly buffer in the final stage of retraction and rise, and the buffering effect is good, stable and reliable; during the long-term use of the rolling curtain damper, the first damping matching structure 4 and the second damping matching structure 5 are slightly worn, but the two can still achieve contact and damping matching, and have a long service life.

[0140] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0141] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A roller shutter damper, characterized in that: The invention comprises a motion assisting mechanism (1), a rotating mechanism (2), a damping matching mechanism (3), a first damping matching structure (4), and a second damping matching structure (5); the rotating mechanism (2) is rotatably arranged on the motion conversion mechanism, and the rotating mechanism (2) is located on one side of the damping matching mechanism (3); the motion assisting mechanism (1) is used to drive the rotating mechanism (2) to approach the damping matching mechanism (3) by means of the rotating movement of the rotating mechanism (2) along a first direction, and to drive the rotating mechanism (2) to move away from the damping matching mechanism (3) by means of the rotating movement of the rotating mechanism (2) along a second direction opposite to the first direction; One of the first damping matching structure (4) and the second damping matching structure (5) is arranged on a side of the rotating mechanism (2) facing the damping matching structure (3), and the other of the first damping matching structure (4) and the second damping matching structure (5) is arranged on a side of the damping matching structure (3) facing the rotating mechanism (2); The first damping matching structure (4) has a length along the rotation direction of the rotating mechanism (2), the second damping matching structure (5) is columnar, and when the rotating mechanism (2) rotates along the first direction, the projection of the second damping matching structure (5) toward one side of the first damping matching structure (4) can be located on a motion trajectory of the first damping matching structure (4) rotating relative to the second damping matching structure (5); Along the direction from the rotating mechanism (2) approaching to and away from the damping matching mechanism (3), the end surface of one side of the first damping matching structure (4) facing the second damping matching structure (5) and the end surface of one side of the second damping matching structure (5) facing the first damping matching structure (4) can be damping matched in a contact state.

2. The roller shutter damper according to claim 1, characterized in that: The first damping matching structure (4) is movably arranged on one of the rotating mechanism (2) and the damping matching structure (3), and the second damping matching structure (5) is arranged on the other of the rotating mechanism (2) and the damping matching structure (3); and during the movement of the first damping matching structure (4), the first damping matching structure (5) has a first working position in which the projection of the second damping matching structure (5) toward one side of the first damping matching structure (4) can be located on a motion trajectory of the first damping matching structure (4) rotating relative to the second damping matching structure (5), and a second working position in which the projection of the second damping matching structure (5) toward one side of the second damping matching structure (5) is not located on the motion trajectory of the first damping matching structure (4) rotating relative to the second damping matching structure (5); Or the second damping cooperation structure (5) is movably arranged on one of the rotating mechanism (2) and the damping cooperation structure (3), and the first damping cooperation structure (4) is arranged on the other of the rotating mechanism (2) and the damping cooperation structure (3); and during the movement of the second damping cooperation structure (5), the second damping cooperation structure (5) has a third working position in which the projection of the second damping cooperation structure (5) toward the side of the first damping cooperation structure (4) can be located on the movement trajectory of the first damping cooperation structure (4) relative to the second damping cooperation structure (5), and a fourth working position in which the projection of the second damping cooperation structure (5) toward the side of the second damping cooperation structure (5) is not located on the movement trajectory of the first damping cooperation structure (4) relative to the second damping cooperation structure (5).

3. The roller blind damper according to claim 2, characterized in that: It comprises a return member (6), and a guide surface (401) is formed on a side wall of one end of the first damping matching structure (4) that is close to the second damping matching structure (5) along the second direction of rotation of the rotating mechanism (2); When the first damping matching structure (4) is movably arranged on one of the rotating mechanism (2) and the damping matching structure (3), the return member (6) acts on the first damping matching structure (4) and makes the first damping matching structure (4) always have a tendency to move toward the first working position, and when the rotating mechanism (2) rotates in the second direction, the guide surface (401) is used to contact and cooperate with the second damping matching structure (5) to guide the first damping matching structure (4) to move toward the second working position; When the second damping cooperation structure (5) is movably arranged on one of the rotating mechanism (2) and the damping cooperation structure (3), the return member (6) acts on the second damping cooperation structure (5) and makes the second damping cooperation structure (5) always tend to move toward the third working position; when the rotating mechanism (2) rotates along the second direction, the guide surface (401) is used to contact and cooperate with the second damping cooperation structure (5) to guide the second damping cooperation structure (5) to move toward the fourth working position.

4. The roller blind damper according to claim 3, characterized in that: One end of the first damping matching structure (4) is formed as a free end (402), and the other end is formed as a connecting end (403); the first damping matching structure (4) is rotatably arranged on one of the rotating mechanism (2) and the damping matching structure (3) by means of the connecting end (403), and the rotation axis of the first damping matching structure (4) is parallel to the rotation axis of the rotating mechanism (2); when the free end (402) of the first damping matching structure (4) is away from the axis of the rotating mechanism (2), the first damping matching structure (4) is located in the first working position; when the free end (402) of the first damping matching structure (4) is close to the axis of the rotating mechanism (2), the first damping matching structure (4) is located in the second working position; The return member (6) comprises an elastic member (601), one end of the elastic member (601) is connected to a rotating mechanism (2) or a damping matching structure provided with the first damping matching structure (4), and the other end is connected to a connecting end (403) of the first damping matching structure (4), and the connecting portion between the first damping matching structure (4) and the elastic member (601) and the free end (402) of the first damping matching structure (4) are respectively located on both sides of the rotating axis of the first damping matching structure (4); the elastic member (601) acts on the connecting end (403) of the first damping matching structure (4) so ​​that the connecting end (403) of the first damping matching structure (4) always has a tendency to move toward the axis side of the rotating mechanism (2); The rotating mechanism (2) or the damping matching mechanism (3) provided with the first damping matching structure (4) is provided with a limited abutment portion (7) on the outer side of the first damping matching structure (4) away from the rotation axis of the rotating mechanism (2); when the first damping matching structure (4) is located at the first working position, the outer side of the first damping matching structure (4) away from the rotation axis of the rotating mechanism (2) abuts against the limited abutment portion (7); The outer wall of the first damping matching structure (4) away from the axis side of the rotating mechanism (2) is formed as an outer wall (404) of the first damping matching structure. Along the second direction of rotation of the rotating mechanism (2), the outer wall (404) of the first damping matching structure at least first approaches the side of the second damping matching structure (5) and is in an arc shape, and the distance between the side of the arc-shaped portion of the outer wall (404) of the first damping matching structure first approaching the second damping matching structure (5) and the axis side of the rotating mechanism (2) is smaller than the distance between the second damping matching structure (5) and the axis side of the rotating mechanism (2), and the distance between the side of the arc-shaped portion of the outer wall (404) of the first damping matching structure later approaching the second damping matching structure (5) and the axis side of the rotating mechanism (2) is larger than the distance between the second damping matching structure (5) and the axis side of the rotating mechanism (2); The elastic member (601) is a return torsion spring, the axis of which is parallel to the axis of the rotating mechanism (2), the rotating mechanism (2) or the damping matching structure provided with the first damping matching structure (4) is provided with an elastic member abutting boss (8), the connection end (403) of the first damping matching structure (4) is provided with an elastic member fixing through hole (405), one pin of the return torsion spring abuts against the elastic member abutting boss (8), and the other pin is bent to a side parallel to the axis of the return torsion spring so as to be inserted into the elastic member fixing through hole (405); The motion assisting mechanism (1) is arranged to penetrate the rotation axis of the rotating mechanism (2), and a side of the first damping matching structure (4) away from the axis side of the rotating mechanism (2) is provided with an avoidance groove (406).

5. The roller shutter damper according to claim 1, characterized in that: A plurality of the second damping matching structures (5) are provided, and the plurality of the second damping matching structures (5) are distributed around the axis of the rotating mechanism (2) at intervals; The plurality of the second damping matching structures (5) are distributed at equal intervals.

6. The roller blind damper according to claim 1, characterized in that: When the first damping matching structure (4) is arranged on the rotating mechanism (2) and the second damping matching structure (5) is arranged on the damping matching mechanism (3), along the first direction of rotation of the rotating mechanism (2), the end surface of one side of the first damping matching structure (4) facing the damping matching mechanism (3) has a damping matching surface (407) which is gradually inclined toward one side of the damping matching mechanism (3); When the first damping matching structure (4) is arranged on the damping matching structure (3) and the second damping matching structure (5) is arranged on the rotating mechanism (2), along the first direction of rotation of the rotating mechanism (2), the end surface of the second damping matching structure (5) on one side facing the rotating mechanism (2) has a damping matching surface (407) which gradually inclines toward a side away from the rotating mechanism (2).

7. The roller blind damper according to claim 2, characterized in that: Along the first direction of rotation of the rotating mechanism (2), the side wall of the first damping matching structure (4) is first recessed close to one end of the second damping matching structure (5) to form a locking groove (408) matching the second damping matching structure (5).

8. The roller blind damper according to claim 1, characterized in that: The motion assisting mechanism (1) comprises a screw (101), the screw (101) extending in a direction approaching and away from the damping matching mechanism (3); a screw matching hole (201) matching with the screw (101) is provided through the rotation axis of the rotating mechanism (2); the rotating mechanism (2) is sleeved on the screw (101) through the screw matching hole (201), and a matching thread (2011) matching with the screw (101) is provided on at least part of the inner wall of the screw matching hole (201); A first limiting protrusion (202) is provided on the outer side of the screw rod matching hole (201) on the end surface of one side of the rotating mechanism (2) facing the damping matching mechanism (3), and a second limiting protrusion (1011) capable of abutting and matching with the first limiting protrusion (202) is provided on the outer side wall of the screw rod (101) facing the damping matching mechanism (3); One side of the first limiting protrusion (202) extends toward the end face of one side of the rotating mechanism (2) toward the damping matching mechanism (3) to form a transition portion (203) with a slope; and the side of the second limiting protrusion (1011) away from the damping matching mechanism (3) forms a transition matching inclined surface (1011a) matching the transition portion (203); The first damping matching structure (4) is arranged on the rotating mechanism (2), and the second damping matching structure (5) is arranged on the damping matching mechanism (3).

9. The roller blind damper according to claim 1, characterized in that: The rotating mechanism (2) comprises a rotating seat (204) and a rotating cover (205); the rotating cover (205) cooperates with the motion auxiliary mechanism (1) to achieve the approach and separation of the damping matching mechanism (3) through the rotation of the rotating cover (205); the rotating seat (204) and the rotating cover (205) are coaxially arranged and connected to the rotating cover (205) to achieve synchronous movement of the two; and one of the first damping matching structure (4) and the second damping matching structure (5) is arranged on the rotating seat (204); A torsion spring groove (2041) is recessed on one side of the rotating seat (204); the rotating cover (205) is arranged on the side of the rotating seat (204) where the torsion spring groove (2041) is arranged; a connecting torsion spring (206) is arranged in the torsion spring groove (2041); the axis of the connecting torsion spring (206) is colinear with the axis of the rotating seat (204); one end of the connecting torsion spring (206) is connected and abutted against the torsion spring groove (2041), and the other end is connected and abutted against the rotating cover (205); the rotating seat (204) is provided with a connecting buckle (2042) on the outer side of the rotating cover (205) for buckling on the edge of the rotating cover (205); The damping matching mechanism (3) comprises a damping mounting member (301) and a damper connecting member (302) having a mounting shaft (3021); the damping mounting member (301) is sleeved outside the damper connecting member (302), and the damping mounting member (301) is provided with an avoidance through hole (3011) at the mounting shaft (3021) for connecting the mounting shaft (3021) with the motion auxiliary mechanism (1); the other of the first damping matching structure (4) and the second damping matching structure (5) is arranged on the damping mounting member (301); The damper connecting shaft (3023) comprises a damper sleeve (3022), a damper connecting shaft (3023), and a damper sealing cover (3024); the damper sleeve (3022) is sleeved outside the damper connecting shaft (3023); the damper connecting shaft (3023) has the installation shaft (3021); the damper sealing cover (3024) is covered on a side of the damper sleeve (3022) facing the installation shaft (3021); the installation shaft (3021) passes through the damper sealing cover (3024); a sealing ring (3025) is provided on the outer sleeve of the installation shaft (3021), and the sealing ring (3025) is located between the damper seal and the damper connecting shaft (3023); The outer casing of the damping fitting mechanism (3) is provided with a supporting outer casing (9) for installing and fixing the damping fitting mechanism (3).

10. A rolling blind, characterized in that: It comprises a rolling blind damper as claimed in any one of claims 1 to 9, and a rolling blind mechanism, wherein the rolling blind mechanism is connected to a rotating mechanism (2) of the rolling blind damper, and when the blind body in the rolling blind mechanism is in an extended state, the rolling blind mechanism drives the rotating mechanism (2) to rotate in a second direction, and when the blind body in the rolling blind mechanism is in a retracted state, the rolling blind mechanism drives the rotating mechanism (2) to rotate in a first direction.

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