Occlusion mechanism

Abstract

The utility model belongs to the technical field of health-care products, and particularly relates to an occlusion mechanism which comprises a rotating part, a clamping part, a clamping part, a clamping part and a clamping part, and the surface of the rotating part is provided with a groove structure surrounding the axis of the rotating part; and the meshing pieces are oppositely arranged on one side of the rotating piece along the axis of the rotating piece, one end of each meshing piece extends into the corresponding groove structure, and when the rotating piece rotates, the meshing pieces get close to each other or get away from each other. According to the utility model, the elliptical groove structure is arranged on the surface of the rotating piece, and the oppositely arranged occlusion pieces are propped in the groove structure, so that when the rotating piece rotates, the oppositely arranged occlusion pieces are driven to be close to or separated from each other to realize occlusion by utilizing the characteristic that the sizes of long and short shafts of the ellipse are different; and the production cost can be greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of health care products, and particularly relates to a bite mechanism. Background Art

[0002] The current bite mechanism usually adopts the method of driving the twist shaft to rotate, so that the reciprocating member sleeved on the twist shaft pushes the bite arm back and forth to achieve bite;

[0003] For example, a telescopic component and an engaging mechanism structure according to announcement number CN217761930U, the telescopic component includes a rotating shaft, a telescopic part and a connecting part; a spiral track extending along the axial direction is opened on the circumferential side of the rotating shaft, the spiral track includes a first spiral track and a second spiral track with a rotation direction opposite to the first spiral track, and the starting end of the first spiral track is connected with the end of the second spiral track, and the end of the first spiral track is connected with the starting end of the second spiral track to form a closed track; the telescopic part is located on one side of the rotating shaft, and the connecting part is located between the rotating shaft and the telescopic part, one end of the connecting part is movably connected to the telescopic part, and the other end abuts against the spiral track; the connecting part can abut against the bottom wall of the first spiral track and the bottom wall of the second spiral track. As the rotating shaft rotates, the telescopic part movably connected to the connecting part can make reciprocating motion along the axial direction, thereby realizing the automatic telescopic movement of the telescopic part to improve the efficiency of the telescopic movement.

[0004] Although the above-mentioned prior art realizes the engagement, its structure is relatively complicated and the production cost is relatively high.

[0005] In view of this, the present invention provides a bite mechanism to solve the above problem. Utility Model Content

[0006] In order to solve the above problems, the present invention provides the following technical solutions: a bite mechanism, comprising:

[0007] A rotating member, wherein a groove structure surrounding the axis of the rotating member is formed on the surface of the rotating member;

[0008] The engaging member is relatively arranged on one side of the rotating member along the axis of the rotating member, and one end of the engaging member extends into the groove structure. When the rotating member rotates, the engaging members move closer to or farther away from each other.

[0009] As a preferred embodiment of the engaging mechanism of the present invention, the rotating member is provided with a first connecting portion along the axial direction of the rotating member on the other side relative to the groove structure.

[0010] As a preferred embodiment of the engaging mechanism of the present invention, a protrusion is further provided on the surface of the rotating member where the groove structure is located along the axial direction thereof.

[0011] As a preferred embodiment of the engaging mechanism of the present invention, a second connecting portion is further provided on the raised end surface of the raised portion.

[0012] As a preferred engagement mechanism of the present invention, the engagement member includes: an engagement portion and an abutment portion connected to one end of the engagement portion, and fixed shafts are fixedly connected to both sides of the engagement portion to provide a fulcrum for the movement of the engagement portion.

[0013] As a preferred engaging mechanism of the present invention, one end of the abutting portion extends into the groove structure for abutment.

[0014] As a preferred engagement mechanism of the present invention, the groove structure is elliptical.

[0015] As a preferred engagement mechanism of the present invention, the groove structure includes: a first side wall and a second side wall that are oppositely arranged, and a third side wall for connecting the first side wall and the second side wall.

[0016] As a preferred engaging mechanism of the present invention, the connecting surfaces between the first side wall, the second side wall and the rotating member, and the connecting surfaces between the third side wall and the first side wall and the second side wall are all chamfered.

[0017] As a preferred embodiment of the present invention, the engaging mechanism further includes: a driving member, wherein the output end of the driving member is connected to the rotating member to drive the rotating member to rotate along its axis.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model only requires an elliptical groove structure to be formed on the surface of the rotating part, and the relatively arranged engaging parts are abutted in the groove structure. When the rotating part rotates, the different sizes of the major and minor axes of the ellipse are utilized to drive the relatively arranged engaging parts to move closer or apart to achieve engagement. Due to its simple structure, the production cost can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating part of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the bite member of the present utility model;

[0025] Figure 5 This is a schematic diagram of the movement of the engaging member of the present invention.

[0026] In the figure: 1. rotating member; 12. first connecting portion; 13. groove structure; 131. first side wall; 132. second side wall; 133. third side wall; 14. protrusion; 15. second connecting portion; 2. bite member; 21. bite portion; 22. abutment portion; 23. fixed shaft; 3. driving member. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 3 The utility model relates to a bite mechanism, which includes a rotating part 1 and a bite part 2.

[0029] In this embodiment, the rotating member 1 is preferably a columnar structure, and an elliptical groove structure 13 is formed on its surface and arranged around its axis. The groove structure 13 includes: a first side wall 131 and a second side wall 132 arranged opposite to each other, and a third side wall 133 for connecting the first side wall 131 and the second side wall 132.

[0030] The engaging member 2 is arranged relative to the axis of the rotating member 1, as shown in FIG. Figure 4 As shown, it includes: a bite portion 21 and an abutment portion 22 connected to one end of the bite portion 21, and fixed shafts 23 are fixedly connected to both sides of the bite portion 21 to provide a fulcrum for the movement of the bite portion 21. In this embodiment, the bite portion 21 is preferably arc-shaped, and when it is relatively arranged, it can form a clamp shape to form a bite shape; the abutment portion 22 extends into the groove structure 13 at one end away from the bite portion 21 and forms an abutment with the inner wall of the groove structure 13, and then when the groove structure 13 rotates with the rotating part 1, the inner wall of the groove structure 13 can act well on the abutment portion 22 to drive the bite portion 21 to move on the lever with the fixed shaft 23 as the fulcrum to form a movable bite.

[0031] Furthermore, in order to reduce the friction between the abutment portion 22 and the inner wall of the groove structure 13 and improve the transmission efficiency, the connecting surfaces between the first side wall 131 and the second side wall 132 and the rotating part 1, and the connecting surfaces between the third side wall 133 and the first side wall 131 and the second side wall 132 are chamfered, and the abutment portion 22 is arranged to be cylindrical, and one end of the column is an arc-shaped hemispherical structure, which is used to extend into the groove structure 13 and abut against its inner wall. Since the abutment portion 22 is a spherical structure, it forms point contact with the inner wall of the groove structure 13, so as to effectively reduce friction and improve transmission efficiency.

[0032] It should be noted that the rotating member 1 is driven to rotate by the driving member 3. In this embodiment, the driving member 3 is preferably a motor, but may also be other components that can drive the rotating member 1 to rotate along its axis. The output end of the driving member 3 is fixedly connected to the rotating member 1 to achieve the rotation of the rotating member 1 along its axis. For example, the rotating member 1 and the output end of the driving member 3 can be directly connected by welding, interference fit, snap-fit ​​connection or threaded connection, such as Figure 3 As shown, a first connecting portion 12 can be provided on the other side of the rotating member 1 relative to the groove structure 13 along its axial direction. In this embodiment, the first connecting portion 12 is a threaded hole, and a threaded rib adapted to the threaded hole is provided at the output end of the driving member 3. The two are threadedly connected to achieve fixation between the rotating member 1 and the driving member 3. It should be noted here that if a threaded connection is adopted, it is necessary to ensure that the rotation direction of the driving member 3 is opposite to the rotation direction when the thread is locked. Therefore, when the driving member 3 rotates, the threaded connection between the two will be tighter and not easy to fall off.

[0033] During specific use: when the driving member 3 is running, it can drive the rotating member 1 to rotate along its axis. At this time, the groove structure 13 rotates with the rotating member 1. Since the groove structure 13 is elliptical, when it rotates, its inner wall will act on the abutting part 22 that abuts against it, so that the engaging parts 21 can move on the lever with the fixed shaft 23 as the fulcrum, and the ends can move closer or farther away to achieve engagement.

[0034] Furthermore, a protrusion 14 is provided on the surface of the rotating part 1 where the groove structure 13 is located along its axial direction, and a second connecting portion 15 is provided on the protruding end surface of the protrusion 14. In this embodiment, the second connecting portion 15 is a groove with a "T"-shaped cross-section.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bite mechanism, characterized in that: include: A rotating member (1), wherein a surface of the rotating member (1) is provided with a groove structure (13) surrounding its axis; The engaging member (2) is relatively arranged on one side of the rotating member (1) along the axis of the rotating member (1), and one end of the engaging member (2) extends into the groove structure (13). When the rotating member (1) rotates, the engaging members (2) move closer to or farther away from each other.

2. The engagement mechanism according to claim 1, wherein: The rotating member (1) is provided with a first connecting portion (12) along the axial direction of the other side of the rotating member (1) relative to the groove structure (13).

3. The engaging mechanism according to claim 1, wherein: A protrusion (14) is also provided on the surface of the rotating member (1) where the groove structure (13) is located, along the axial direction thereof.

4. The engaging mechanism according to claim 3, wherein: A second connecting portion (15) is also provided on the raised end surface of the raised portion (14).

5. The engaging mechanism according to claim 1, wherein: The bite member (2) comprises a bite portion (21) and an abutment portion (22) connected to one end of the bite portion (21), and fixed shafts (23) are fixedly connected to both sides of the bite portion (21) for providing a fulcrum for the movement of the bite portion (21).

6. The engaging mechanism according to claim 5, characterized in that: One end of the abutment portion (22) extends into the groove structure (13) and can abut against the inner wall of the groove structure (13).

7. The engaging mechanism according to claim 1, characterized in that: The groove structure (13) is elliptical.

8. The engaging mechanism according to claim 1, characterized in that: The groove structure comprises: a first side wall (131) and a second side wall (132) arranged opposite to each other, and a third side wall (133) used for connecting the first side wall (131) and the second side wall (132).

9. The engaging mechanism according to claim 8, characterized in that: The connecting surfaces between the first side wall (131) and the second side wall (132) and the rotating member (1), and the connecting surfaces between the third side wall (133) and the first side wall (131) and the second side wall (132) are all chamfered.

10. The engaging mechanism according to any one of claims 1 to 9, characterized in that: Also includes: A driving member (3), wherein an output end of the driving member (3) is connected to the rotating member (1) to drive the rotating member (1) to rotate along its axis.

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