Damping structure

Abstract

The damping structure comprises two damping assemblies which are oppositely arranged, a gap is formed between the two damping assemblies, the inner walls of the damping assemblies are provided with positioning pieces used for positioning, and the outer walls of the damping assemblies are provided with damping faces which make contact with the pipe wall and are used for providing damping during relative movement; elastic cavities are formed in the damping assemblies, and the elastic cavities in the two damping assemblies are oppositely arranged; the device further comprises an elastic piece, the two sides of the elastic piece are provided with elastic arms bent to be in an arc shape, the two elastic arms are arranged in the two elastic cavities respectively, and a plurality of positions on the elastic arms abut against the supporting structures in the elastic cavities. According to the damping structure capable of being installed in the telescopic pipe fitting, the spring of a special structure is arranged, it can be guaranteed that elastic force is evenly applied, stability is high when the damping structure is used, the phenomena of displacement, deflection and falling are not prone to occurring, the service life of the damping structure is greatly prolonged, and meanwhile the damping structure is simple in structure, convenient to assemble and good in damping hand feeling.

Description

Technical Field

[0001] The utility model belongs to the damping structure technology in a telescopic tube in the field of photography and videography auxiliary devices, and in particular relates to a damping structure. Background Art

[0002] A photography and videography auxiliary device is a commonly used device, such as a tripod, a selfie stick, a support rod, etc. In the prior art, the telescopic support rod generally adopts a multi-section sleeve structure, i.e., a telescopic tube.

[0003] In the prior art, a telescopic tube refers to a combination of at least two straight pipes concentrically sleeved together and capable of achieving relative axial displacement to change the overall length. In order to make the adjacent pipes feel even and smooth when telescoping, a damping structure is usually provided between the inner and outer pipes. However, the damping mechanisms in the existing telescopic tubes are all composed of a single spring, and the rebound force of the spring cannot be evenly released between the inner and outer pipes, resulting in the inner and outer pipes being sometimes fast and sometimes slow, sometimes tight and sometimes loose during the telescoping process, resulting in poor use effect and feel. In addition, the spring lacks a proper fixing structure between the inner and outer pipes. Once the number of telescoping and retracting times is large, the spring is easily displaced, skewed, or even falls off, resulting in a short service life.

[0004] Based on the above problems in the prior art, the present application further designs and improves the damping structure in the telescopic tube. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned prior art, the utility model provides a damping structure for installation in a telescopic tube, wherein a spring with a special structure is arranged, which can ensure that the elastic force is evenly applied, has high stability during use, and is not prone to displacement, skewness, and falling off, thereby greatly improving the service life of the damping structure. At the same time, the structure is simple, the assembly is convenient, and the damping feel is good.

[0006] The utility model solves the problem through the following technical solutions.

[0007] A damping structure comprises two damping components which are arranged opposite to each other and have a gap therebetween, wherein a positioning piece is provided on the inner wall of the damping component, and a damping surface which is in contact with a tube wall and is used to provide damping during relative movement is provided on the outer wall of the damping component; elastic cavities are provided on the damping components, and the elastic cavities on the two damping components are arranged opposite to each other; and an elastic component is also included, wherein both sides of the elastic component have elastic arms bent into arc lines, the two elastic arms are respectively placed in the two elastic cavities, and a plurality of positions on the elastic arms are against a supporting structure in the elastic cavity.

[0008] In the present application, a special elastic member with a dedicated structure is provided to ensure that its elastic force can be evenly applied to the damping assembly. Specifically, elastic arms are provided on both sides of the elastic member in the present application, which have an arc shape, and multiple positions of the elastic arms can well abut against the supporting structure in the elastic cavity, ensuring that the elastic force can be applied at multiple positions to open the damping assembly. Compared with springs of conventional structures, elastic members of this structure can well avoid the phenomenon that conventional springs are easily displaced, skewed, and fall off, and have high stability during use. After the damping structure is installed on the telescopic tube, it is positioned on the inner tube through the positioning member on the inner wall of the damping assembly and moves synchronously with the inner tube. During the telescopic process of the inner tube and the outer tube of the telescopic tube, when the inner tube and the outer tube move relative to each other, the outer wall of the damping assembly rubs against the inner wall of the outer tube. At this time, the damping force is generated through the damping surface, which has a good hand feel and a long overall service life.

[0009] In a preferred embodiment, the elastic member is formed by a rod body, which is a metal rod body or a polymer material rod body. The elastic member is formed by bending the rod body, which has a simple production process and low production cost.

[0010] In a preferred embodiment, the elastic member includes a spiral structure located at a central position to form at least one spiral, which is used to store and apply elastic force, and to ensure the symmetry of the main structure of the elastic member so that the elastic force is applied evenly and balanced. Straight sections are extended from both ends of the spiral structure to provide rigid force, and elastic arms are extended from the outer ends of the straight sections through bent sections. The bent sections can be compressed to store elastic force when subjected to force, thereby providing elastic support, and can cooperate with the arc-shaped elastic arms to achieve better and more uniform elastic support effects.

[0011] In a preferred embodiment, the two straight sections extend in parallel to each other in the same direction, and the two elastic arms are symmetrical structures in the top view. This structure can ensure the stability of the overall elastic component structure. Specifically, the straight sections on both sides of the elastic component face the same direction, which can offset the rotational force generated by the elastic arms on both sides during the extrusion process, so that the elastic component as a whole will not generate circumferential rotational force, and the structure is stable; if the two straight sections face opposite directions, the rotational force generated by the elastic arms on both sides during the extrusion process is likely to cause the spiral structure to have a rotation tendency, and then the elastic component as a whole will have a circumferential rotational force tendency, which will reduce the stability of the structure and reduce the service life.

[0012] In a preferred embodiment, when viewed from above, the spiral structure has a diameter L1, and the outermost end of the elastic arm is at a distance L2 from the spiral structure, satisfying: L1:L2=1.4-1.6. Under this structural size, the overall strength of the elastic member is high, the stored elastic force is appropriate, and the damping effect during use is good.

[0013] In a preferred embodiment, when viewed from above, the distance between the outermost end of the bending section and the spiral structure is L3, L1: L3 = 2.3-2.5; the distance between the end of the elastic arm and the spiral structure is L4, L1: L4 = 1.8-1.9. Under this structural size, the overall strength of the elastic member is high, the elastic force provided is uniform, and the damping effect during use is good.

[0014] In a preferred embodiment, a plurality of support plates serving as support structures are provided in the elastic cavity, and the elastic arms are offset against the support plates. The provision of the support plates significantly improves the structural strength in the elastic cavity. At the same time, by having a plurality of support plates offset against the elastic arms, the elastic force of the elastic arms can be well received at multiple positions, thereby ensuring that the elastic force is evenly applied to the damping assembly with high stability.

[0015] In a preferred embodiment, a partition cavity is formed at both ends of the elastic cavity by a partition plate. The two partition plates are used to limit the bending section at one end of the elastic arm and the end of the other end to prevent the elastic arm from falling out or tilting. It has high stability and also avoids excessive extrusion and deformation of the elastic arm, thereby ensuring the overall structural strength.

[0016] In a preferred embodiment, there are five evenly distributed support plates in each elastic cavity, and the structure is stable.

[0017] In a preferred embodiment, a plurality of protruding damping surfaces are provided on the outer wall of the damping component, and an inclined surface is provided between the damping surface and the outer wall, so that the damping friction effect is good.

[0018] In a preferred embodiment, the elastic cavity is arranged at one end of the damping assembly and is formed by a double-layer plate body in the axial direction, and the support plate and the spacer plate are integrally formed therein, so the structural strength is high.

[0019] Compared with the prior art, the utility model has the following beneficial effects: it provides a damping structure that can be installed in a telescopic pipe, in which a spring with a special structure is arranged, which can ensure that the elastic force is evenly applied, has high stability during use, and is not prone to displacement, skewness, and falling off, thereby greatly improving the service life of the damping structure. At the same time, it has a simple structure, is easy to assemble, and has a good damping feel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional damping structure of the utility model Figure 1 .

[0021] Figure 2 The three-dimensional damping structure of the utility model Figure 2 .

[0022] Figure 3It is a side view of the damping structure in the utility model.

[0023] Figure 4 It is a cross-sectional view of the elastic cavity structure of the damping structure in the utility model.

[0024] Figure 5 It is a cross-sectional view of the damping structure in the utility model.

[0025] Figure 6 It is a stereoscopic diagram of a damping component in the utility model.

[0026] Figure 7 for Figure 6 Magnified view of area A in FIG.

[0027] Figure 8 It is a three-dimensional diagram of the elastic member in the utility model.

[0028] Fig. 9 It is a top view of the elastic member in the utility model. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] In the following embodiments, the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as limiting the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0032] See also Figures 1 to 9The present application relates to a damping structure that can be used in a telescopic pipe, comprising two damping components 1 that are arranged opposite to each other and have a gap 3 therebetween, wherein a positioning component 4 for positioning is provided on the inner wall of the damping component 1, and a damping surface 11 for providing damping during relative movement and in contact with the pipe wall is provided on the outer wall of the damping component 1; the damping component 1 is provided with an elastic cavity 7, and the elastic cavities 7 on the two damping components 1 are arranged opposite to each other; and further comprising an elastic component 5, wherein both sides of the elastic component 5 have elastic arms 52 bent into arc lines, and the two elastic arms 52 are respectively placed in the two elastic cavities 7, and multiple positions on the elastic arms 52 are against the supporting structure in the elastic cavity 7.

[0033] Specifically, from the attached Figure 8 and attached Fig. 9 It can be seen that in the present application, the elastic member 5 includes a spiral structure 51 located at the center to form at least one spiral circle, which is used to store elastic force and apply elastic force, and to ensure the symmetry of the main structure of the elastic member 5, so that the elastic force is applied evenly and balanced. Straight sections 523 are extended from both ends of the spiral structure 51 to provide rigid force. The outer end of the straight section 523 extends an elastic arm 52 through a bent section 521. The bent section 521 can be compressed to store elastic force when subjected to force, provide elastic support, and can cooperate with the arc-shaped elastic arm 52 to achieve a better and more uniform elastic support effect.

[0034] In a specific embodiment of the present application, the two straight sections 523 extend in parallel to each other in the same direction, and the two elastic arms 52 are symmetrical structures in the top view. This structure can ensure the stability of the overall elastic member 5 structure. Specifically, the straight sections 523 on both sides of the elastic member 5 face the same direction, which can offset the rotational force generated by the elastic arms 52 on both sides during the extrusion process, so that the elastic member 5 as a whole will not generate circumferential rotational force, and the structure is stable; if the two straight sections 523 face opposite directions, the rotational force generated by the elastic arms 52 on both sides during the extrusion process is likely to cause the spiral structure 51 to have a rotation tendency, and then the elastic member 5 as a whole will have a circumferential rotational force tendency, which will reduce the stability of the structure and reduce the service life.

[0035] Further, in the present application, when viewed from above, the spiral structure 51 has a diameter L1, and the outermost end of the elastic arm 52 is at a distance of L2 from the spiral structure 51, satisfying: L1: L2 = 1.4~1.6. Under this structural dimension, the overall strength of the elastic member 5 is high, and the stored elastic force is appropriate. The outermost end of the bending section 521 is at a distance of L3 from the spiral structure 51, L1: L3 = 2.3~2.5; The end 522 of the elastic arm 52 is at a distance of L4 from the spiral structure 51, L1: L4 = 1.8~1.9. Under this structural dimension, the overall strength of the elastic member 5 is high, the elastic force provided is uniform, and the damping effect during use is good.

[0036] In the implementation manner of the present application, the elastic member 5 is formed by a rod body, which is a metal rod body or a polymer material rod body, and can be a conventional material for making springs. The elastic member 5 is formed by bending the rod body, and the production process is simple and the production cost is low.

[0037] From the attached Figure 4 and attached Figure 6 It can be seen that in the present application, the elastic cavity 7 is provided with a plurality of support plates 71 as a support structure. Preferably, there are five support plates 71 evenly distributed in each elastic cavity 7, and the structure is stable. The elastic arm 52 is against the support plate 71. The setting of the support plate 71 significantly improves the structural strength in the elastic cavity 7. At the same time, through the multiple support plates 71 against the elastic arm 52, the elastic force of the elastic arm 52 can be well received at multiple positions, ensuring that the elastic force is evenly applied to the damping component 1, and the stability is high. In addition, in the present application, the two ends of the elastic cavity 7 are formed with a spacing cavity 6 through a spacing plate 61. The two spacing plates 61 are used to limit the bending section 521 at one end of the elastic arm 52 and the end 522 at the other end to prevent the elastic arm 52 from falling out or tilting, with high stability, while also avoiding excessive extrusion and deformation of the elastic arm 52, ensuring the overall structural strength.

[0038] From the attached Figure 6 It can be seen that the elastic cavity 7 is arranged at one end of the damping assembly 1 and is formed by a double-layer plate body 77 in the axial direction, and the support plate 71 and the spacer plate 61 are integrally formed therein, and the structural strength is high.

[0039] Further, from the attached Figure 7 It can be seen that in the present application, a plurality of protruding damping surfaces 11 are provided on the outer wall 14 of the damping component 1, and an inclined surface 12 is provided between the damping surface 11 and the outer wall 14, so that the damping friction effect is good.

[0040] From the above description, it can be seen that in the present application, a special elastic member 5 with a dedicated structure is provided to ensure that its elastic force can be uniformly applied to the damping assembly 1. Specifically, elastic arms 52 are provided on both sides of the elastic member 5 in the present application, which have an arc shape, and multiple positions of the elastic arms 52 can well abut against the supporting structure in the elastic cavity 7, ensuring that the elastic force can be applied at multiple positions to open the damping assembly 1. Compared with the spring of the conventional structure, the elastic member 5 of this structure can well avoid the phenomenon that the conventional spring is easy to shift, tilt, and fall off, and has high stability during use. After the damping structure is installed on the telescopic tube, it is positioned on the inner tube through the positioning member 4 on the inner wall of the damping assembly 1 and moves synchronously with the inner tube. During the telescopic process of the inner tube and the outer tube of the telescopic tube, when the inner tube and the outer tube move relative to each other, the outer wall 14 of the damping assembly 1 rubs against the inner wall of the outer tube. At this time, the damping force is generated through the damping surface 11, which has a good hand feel and a long overall service life.

[0041] As described above, the damping structure in the utility model that can be installed in the telescopic pipe is provided with a spring of special structure, which can ensure that the elastic force is evenly applied. It has high stability during use and is not prone to displacement, skewness, and falling off, which greatly improves the service life of the damping structure. At the same time, it has a simple structure, is easy to assemble, and has a good damping feel.

[0042] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A damping structure, comprising two damping components (1) arranged opposite to each other with a gap (3) therebetween, characterized in that: The inner wall of the damping component (1) is provided with a positioning member (4) for positioning, and the outer wall of the damping component (1) is provided with a damping surface (11) in contact with the pipe wall for providing damping during relative movement; The damping component (1) is provided with an elastic cavity (7), and the elastic cavities (7) on the two damping components (1) are arranged opposite to each other; It also comprises an elastic member (5), wherein two sides of the elastic member (5) have elastic arms (52) bent into arc lines, the two elastic arms (52) are respectively placed in two elastic chambers (7), and a plurality of positions on the elastic arms (52) are against the support structure in the elastic chamber (7).

2. A damping structure according to claim 1, characterized in that: The elastic member (5) is formed by a rod body, and the rod body is a metal rod body or a polymer material rod body.

3. A damping structure according to claim 2, characterized in that: The elastic member (5) comprises a spiral structure (51) located at a central position, straight sections (523) extending from both ends of the spiral structure (51), and elastic arms (52) extending from the outer ends of the straight sections (523) via the bent sections (521).

4. A damping structure according to claim 3, characterized in that: The two straight sections (523) extend in parallel to each other in the same direction, and the two elastic arms (52) are symmetrical structures in a top view direction.

5. A damping structure according to claim 4, characterized in that: When viewed from above, the spiral structure (51) has a diameter L1, and the distance between the outermost end of the elastic arm (52) and the spiral structure (51) is L2, satisfying the following relationship: L1:L2=1.4-1.

6.

6. A damping structure according to claim 5, characterized in that: When viewed from above, the distance between the outermost end of the bending section (521) and the spiral structure (51) is L3, where L1:L3=2.3~2.5; The distance between the end (522) of the elastic arm (52) and the spiral structure (51) is L4, where L1:L4=1.8-1.

9.

7. A damping structure according to any one of claims 1 to 6, characterized in that: A plurality of support plates (71) serving as support structures are provided in the elastic cavity (7), and the elastic arms (52) abut against the support plates (71).

8. A damping structure according to claim 7, characterized in that: The two ends of the elastic cavity (7) form a partition cavity (6) through a partition plate (61), and the two partition plates (61) are used to limit the bending section (521) at one end of the elastic arm (52) and the end (522) at the other end.

9. A damping structure according to claim 8, characterized in that: There are five evenly distributed support plates (71) in each elastic cavity (7).

10. A damping structure according to claim 9, characterized in that: A plurality of protruding damping surfaces (11) are provided on the outer wall (14) of the damping component (1), and an inclined surface (12) is provided between the damping surface (11) and the outer wall (14).

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