Damping rotation structure

Abstract

The utility model discloses a damping rotation structure which comprises a first connecting piece, a second connecting piece and a damping sleeve piece, an installation groove is formed in the second connecting piece, the first connecting piece is rotationally installed on the second connecting piece and provided with a through hole coaxial with the installation groove, and the damping sleeve piece is arranged in the through hole. The damping sleeve piece comprises a guide shaft, a chuck, a spring and a movable disc, the chuck, the spring and the movable disc are arranged in the mounting groove from outside to inside, the two ends of the spring abut against the movable disc and the chuck respectively, the chuck is located on the inner side of the first connecting piece and engaged with the connecting pieces, one end of the guide shaft penetrates through the through hole, and the other end of the guide shaft penetrates through the through hole. The guide shaft is arranged in the mounting groove and rotatably arranged in the mounting groove, and the movable disc is arranged on the guide shaft and can move inwards and / or outwards along with rotation of the guide shaft. According to the technical scheme provided by the utility model, the meshing force between the chuck and the first connecting piece is adjusted by utilizing a thread machine feeding mode, and the damping hand feeling can be well adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lighting product technical field, specifically is a damping rotation structure. BACKGROUND

[0002] In order to realize the rotation connection between two components, and ensure that two components are positioned at the current position after relative rotation to a certain position without the action of external force, many devices or equipment usually adopt damping rotation structure, such as the connecting part of lighting equipment (camping lamp) and its handle, which can be positioned at the current position by damping force when not subjected to external force. Most of the damping rotation structures on the market are nylon plugs that provide damping feeling, and then steel balls are positioned. Such design is easy to deviate, resulting in poor hand feeling and inaccurate positioning, which cannot meet the increasing use demand of users. UTILITY MODEL CONTENTS

[0003] In order to overcome the shortcomings of the prior art, the utility model aims at providing a damping rotation structure.

[0004] The technical scheme adopted by the utility model is as follows: a damping rotation structure, comprising a first connecting piece, a second connecting piece and a damping sleeve, an installation groove is formed in the second connecting piece, the first connecting piece is rotatably installed on the second connecting piece and is provided with a through hole coaxial with the installation groove, the damping sleeve comprises a guide shaft and a chuck, a spring and a movable disc arranged in the installation groove from outside to inside, wherein the two ends of the spring are respectively in abutment with the movable disc and the chuck, the chuck is located on the inner side of the first connecting piece and is engaged with the connecting piece, one end of the guide shaft passes through the through hole and is rotatably installed in the installation groove, and the movable disc is installed on the guide shaft and can move inward and / or outward along with the rotation of the guide shaft.

[0005] In a preferred embodiment, the guide shaft has a screw portion and a limiting portion, an outer helical thread is arranged on the outer side of the screw portion, and an inner helical thread hole adapted to the screw portion is formed in the center of the movable disc.

[0006] In a preferred embodiment, the outer edge of the movable disc is inwardly recessed to form a plurality of guide grooves, a guide rod corresponding to the guide grooves is arranged in the installation groove, and the movable disc can move along the guide rod.

[0007] In a preferred embodiment, the outer wall surface of the chuck is circumferentially provided with an end face tooth, and the inner wall surface of the first connecting piece is circumferentially provided with a tooth surface engaged with the end face tooth.

[0008] In a preferred embodiment, the damping kit further comprises a rotating knob, the rotating knob and the limiting part are located outside the first connecting piece, an accommodation cavity for accommodating the limiting part is formed by inwardly recessing the inner wall of the rotating knob, and the rotating knob is locked together with the limiting part through a plurality of screws.

[0009] In a preferred embodiment, the damping kit further comprises a bearing, a bearing hole for accommodating the bearing is formed in the outer wall of the limiting part, and the limiting part can freely rotate along the bearing through a positioning screw.

[0010] In a preferred embodiment, a positioning shaft is arranged at the center of the inner wall of the mounting groove, the screw rod part is sleeved on the positioning shaft through a through hole coaxial with the bearing hole, an internal thread hole is formed in the outer wall of the positioning shaft, and the positioning screw is sequentially threaded through the bearing and the through hole and is threadedly connected with the positioning shaft.

[0011] In a preferred embodiment, an accommodation space for accommodating the spring is formed between the movable disc and the chuck, and a hole position for the screw rod part to pass through is formed at the center of the chuck.

[0012] In a preferred embodiment, the diameter of the limiting part is greater than the diameter of the through hole.

[0013] In summary, due to the adoption of the above technical scheme, the damping kit has the following advantages: when adjusting the damping hand feeling, the rotating knob is only needed to be rotated clockwise or counterclockwise, the guiding shaft is driven to rotate synchronously in the rotating process of the rotating knob, the movable disc can be moved in the horizontal direction by using the threaded structure between the guiding shaft and the movable disc, the spring is deformed correspondingly in the moving process, the clamping force between the chuck and the first connecting piece can be adjusted, the greater the clamping force, the greater the damping, and vice versa, the damping hand feeling can be well adjusted, and the user can use it conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an overall explosion three-dimensional structure schematic diagram of the damping kit;

[0015] Figure 2 It is an overall plane structure schematic diagram of the damping kit;

[0016] Figure 3 It is Figure 2 a sectional plane structure schematic diagram of A-A.

[0017] Marked in the figure: 1 - first connecting piece, 101 - through hole, 102 - tooth surface, 2 - second connecting piece, 201 - positioning shaft, 202 - mounting groove, 3 - movable disc, 301 - guide groove, 302 - internal screw thread hole, 4 - chuck, 401 - end surface tooth, 5 - spring, 6 - guide shaft, 601 - screw rod part, 602 - limiting part, 7 - bearing, 8 - positioning screw, 9 - rotating knob, 10 - screw. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0019] A damping rotation structure, referring to Figures 1-3 , comprising a first connecting piece 1, a second connecting piece 2 and a damping set, the second connecting piece 2 is provided with a mounting groove 202, the first connecting piece 1 is rotatably installed on the second connecting piece 2 and is provided with a through hole 101 coaxial with the mounting groove 202, the damping set comprises a guide shaft 6 and a chuck 4, a spring 5 and a movable disc 3 arranged from outside to inside in the mounting groove 202, wherein the two ends of the spring 5 are respectively in abutment with the movable disc 3 and the chuck 4, the chuck 4 is located on the inner side of the first connecting piece 1 and is engaged with the first connecting piece 1, one end of the guide shaft 6 passes through the through hole 101 and is rotatably installed in the mounting groove 202, the movable disc 3 is installed on the guide shaft 6 and can move inward and / or outward with the rotation of the guide shaft 6, the guide shaft 6 has a screw rod part 601 and a limiting part 602, the outer side of the screw rod part 601 is provided with an external screw thread, the center of the movable disc 3 is provided with an internal screw thread hole 302 matched with the screw rod part 601, when adjusting the damping feeling, only need to rotate the guide shaft clockwise or counterclockwise, using the thread mechanism structure between the guide shaft 6 and the movable disc 3, the movable disc can move with the rotation of the guide shaft 6, and the spring 5 is correspondingly deformed in the moving process, so that the engagement force between the chuck 4 and the first connecting piece 1 can be adjusted, the greater the engagement force, the greater the damping, and vice versa, the damping feeling can be well adjusted, and the user can use it conveniently.

[0020] In the embodiment, the first connecting piece 1 is a handle, and the second connecting piece 2 is a lighting product shell. In other embodiments, the first connecting piece 1 and the second connecting piece 2 can also be other structures, which are not specifically described here.

[0021] Further, the outer edge of the movable disc 3 is inwardly recessed to form a plurality of guide grooves 301, and the mounting groove 202 is provided with guide rods (not shown in the figure) corresponding to the guide grooves 301. The movable disc 3 can move along the guide rods. Through the cooperation of the guide rods and the guide grooves 301, the movable disc 3 can be assisted and guided to move in a certain direction, so that the movable disc 3 can only move in the direction of the guide rods.

[0022] Further, the outer wall surface of the chuck 4 is circumferentially provided with an end face tooth 401, and the inner wall surface of the first connecting piece 1 is circumferentially provided with a tooth surface 102 engaged with the end face tooth 401. The chuck 4 and the first connecting piece 1 have tooth positions engaged with each other. The closer the chuck 4 is to the first connecting piece 1, the greater the engagement force between them, and the greater the damping. Therefore, the force required for rotation is greater, and vice versa. The smaller the damping, the smaller the force required for rotation.

[0023] Further, the damping assembly further comprises a rotating knob 9, and the rotating knob 9 and the limiting portion 602 are located on the outer side of the first connecting piece 1. The inner wall surface of the rotating knob 9 is inwardly recessed to form a containing cavity for containing the limiting portion 602. The rotating knob 9 is locked together with the limiting portion 602 by a plurality of screws 10. The rotating knob 9 can be designed to facilitate the user to rotate the guide shaft 6, that is, to facilitate the user to adjust the damping feel. The outer circumferential surface of the rotating knob 9 is further provided with anti-skid lines to prevent slipping during rotation.

[0024] Further, the damping assembly further comprises a bearing 7, and the outer wall surface of the limiting portion 602 is provided with a bearing hole adapted to the bearing 7. The bearing 7 is installed in the bearing hole through a positioning screw 8. The limiting portion 602 can freely rotate along the bearing 7. The bearing 7 can reduce the friction coefficient during the movement of the limiting portion 602 and ensure the rotation accuracy. The rotation is more stable.

[0025] Further, the mounting groove 202 is provided with a positioning shaft 201 at the center of the inner wall, and the screw rod portion 601 is provided with a through hole coaxial with the bearing hole. The screw rod portion 601 is sleeved on the positioning shaft 201 through the through hole. The outer wall surface of the positioning shaft 201 is provided with an internal thread hole. The positioning screw 8 passes through the bearing 7 and the through hole in sequence and is threadedly connected with the positioning shaft 201. The positioning screw 8 can assist in positioning the bearing 7 and the screw rod portion 601 on the positioning shaft 201. The assembly operation of the guide shaft 6, the bearing 7 and the positioning shaft 201 can also satisfy the normal rotation of the guide shaft 6.

[0026] Further, the movable disc 3 and the chuck 4 jointly form a containing space for containing the spring 5. The center of the chuck 4 is provided with a hole position for the screw rod portion 601 to pass through. The spring 5 itself can drive the chuck 4 to be pressed to meet the damping feel. When the first connecting piece 1 is rotated, the spring 5 is deformed under the influence of external force, which can also meet the rotation operation of the first connecting piece 1 under stress.

[0027] Further, the diameter of the limiting portion 602 is greater than the diameter of the through hole 101, and when the guide shaft 6 passes through the first connecting piece 1 and is assembled on the second connecting piece 2, the limiting portion 602 can assist in limiting the position of the first connecting piece 1.

[0028] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A damped rotation structure, characterized by, The application relates to a damping device, which comprises a first connecting piece, a second connecting piece and a damping sleeve, a mounting groove is formed in the second connecting piece, the first connecting piece is rotatably installed on the second connecting piece and is provided with a through hole coaxial with the mounting groove, the damping sleeve comprises a guide shaft, a chuck, a spring and a movable disc which are arranged in the mounting groove from outside to inside, the spring is in abutment with the movable disc and the chuck at two ends respectively, the chuck is located on the inner side of the first connecting piece and is in engagement with the connecting piece, one end of the guide shaft penetrates through the through hole and is rotatably installed in the mounting groove, and the movable disc is installed on the guide shaft and can move inward and / or outward along with the rotation of the guide shaft.

2. A damped rotation structure as claimed in claim 1, characterized in that: The guide shaft is provided with a screw rod part and a limiting part, an outer helical thread is formed on the screw rod part, and an inner helical thread hole is formed in the center of the movable disc and matched with the screw rod part.

3. A damped rotation structure as claimed in claim 1, characterized in that: The outer edge of the movable disc is inwardly recessed to form a plurality of guide grooves, and guide rods corresponding to the guide grooves are arranged in the mounting groove, and the movable disc can move along the guide rods.

4. A damped rotation structure as claimed in claim 1, characterized in that: An end surface tooth is arranged on the outer wall surface of the chuck in a circumferential direction, and a tooth surface matched with the end surface tooth is arranged on the inner wall surface of the first connecting piece in a circumferential direction.

5. A damped rotation structure as claimed in claim 2, characterized in that: The damping sleeve further comprises a rotating knob, the rotating knob and the limiting part are located on the outer side of the first connecting piece, an accommodating cavity for accommodating the limiting part is formed in the inner wall surface of the rotating knob, and the rotating knob is locked together with the limiting part through a plurality of screws.

6. A damped rotation structure as claimed in claim 2, characterized in that: The damping sleeve further comprises a bearing, a bearing hole matched with the bearing is formed in the outer wall surface of the limiting part, the bearing is installed in the bearing hole through a positioning screw, and the limiting part can freely rotate along the bearing.

7. A damped rotation structure as claimed in claim 6, characterized in that: A positioning shaft is arranged at the center of the inner wall of the mounting groove, a through hole coaxial with the bearing hole is formed in the screw rod part, the screw rod part is sleeved on the positioning shaft through the through hole, an inner thread hole is formed in the outer wall surface of the positioning shaft, and the positioning screw passes through the bearing and the through hole in sequence and is threadedly connected with the positioning shaft.

8. A damped rotation structure as claimed in claim 2, characterized in that: An accommodating space for accommodating the spring is formed between the movable disc and the chuck, and a hole position for the screw rod part to penetrate through is formed in the center of the chuck.

9. A damped rotation structure as claimed in claim 2, characterized in that: The diameter of the limiting part is larger than that of the through hole.

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