Telescopic assembly and occlusion mechanism

Abstract

This application discloses a telescopic assembly and an occlusion mechanism. The telescopic assembly comprises a rotating shaft (11), a telescopic part (12), and a connector (13); two helical orbits extending along the axis are provided at the circumference of the rotating shaft (11), they intersect each other in a spiral and connect at the ends to form a closed orbit; the telescopic part (12) is sheathed around the rotating shaft (11), the connector (13) is movably assembled to the telescopic part (12), and the other end of the connector (13) always moves in the helical orbit groove; as the rotating shaft (11) rotates, the connector (13) drives the telescopic part to make reciprocating movements along the axis, thereby achieving the automatic deployment and retraction of the telescopic part (12).

Description

Title of the invention: Telescopic assembly and occlusion mechanism Technical field

[0001] The present application relates to the technological field of healthcare products, in particular to a telescopic assembly and an occlusion mechanism. Technical background

[0002] The occlusion mechanism generally consists of two oppositely arranged occlusion arms, these two occlusion arms are generally assembled to the telescopic part whose deployments and withdrawals allow the two occlusion arms to approach and move away at a certain angle, in order to thus achieve the occlusion action, in the prior art, the deployments and withdrawals of the telescopic part are carried out manually, making the occlusion intensity and the automatic occlusion effect poorly controlled. Summary

[0003] Embodiments in the present application provide a telescopic assembly and an occlusion mechanism, allowing automation of deployments and retractions to be achieved, in order to improve the efficiency of deployments and retractions.

[0004] First, the embodiments in the present application provide a telescopic assembly, including:

[0005] A rotating shaft, at the circumference of which orbits are provided extending along the axis, said helical orbits include the first helical orbit and the second helical orbit whose spiral direction is opposite to that of the first helical orbit, and the head of said first helical orbit is communicated with the tail of said second helical orbit, and the tail of said first helical orbit is communicated with the head of said second helical orbit;

[0006] A telescopic part, which is located on one side of said rotating shaft and moves linearly back and forth along said axis;

[0007] A connector, which is located between said rotating shaft and said telescopic part, said connector is movably assembled to said telescopic part by one end and abuts against said helical orbits by the other end.

[0008] In some embodiments, said telescopic part is provided with an extension notch in which said rotary shaft is movably seated and the axis of said extension notch and the axis of said rotary shaft are collinear.

[0009] In some embodiments, said first helical orbit and said second orbit have the same extension lengths, and said first helical orbit and said second orbit have the same number of turns.

[0010] In some embodiments, the telescopic assembly also comprises an auxiliary mounting part, which is fixedly assembled to said telescopic part, and a through hole through which said auxiliary mounting part penetrates in the direction of the axis, the axis of said through hole and the axis of said extension notch, said rotary shaft movably threads into said through hole and said extension notch, on said auxiliary mounting part is opened a mounting hole which extends in the direction perpendicular to the axis H to be communicated with said through hole;

[0011] Said telescopic assembly also comprises a locking piece, which is plugged into said mounting hole and is provided with a positioning notch on the side close to said extension notch, one end of said connector is movably mounted in said positioning notch.

[0012] In some embodiments, said connector comprises a coupling shaft, one end of which is movably mounted in the positioning notch and the other end abuts against said helical orbit; now, said connector comprises a coupling shaft and a stop piece, said stop piece is arcuate-shaped at the same rotation angle as said helical orbit, and abuts against the bottom of said helical orbit, then one end of said coupling shaft is movably mounted in the positioning notch and its other end is fixedly assembled to said stop piece.

[0013] In some embodiments, said auxiliary mounting part is provided with a positioning hole, said positioning hole passes through said auxiliary mounting part in said H-axis direction and is communicated with said mounting hole;

[0014] On said locking piece is provided a limiting hole, said limiting hole passes through said locking piece in said direction of the H axis, and the axis of said positioning hole and the axis of said limiting hole are collinear;

[0015] Said telescopic assembly also comprises a fixing pin which successively passes through said positioning hole and said limiting hole.

[0016] In some embodiments, said locking piece is provided with a projection, at the portion corresponding to said projection on the inner wall of said through hole is drilled a notch in which said projection is located; alternatively, on the inner wall of said through hole is provided a projection and at the portion corresponding to said projection on the locking piece of said through hole is drilled a notch in which said projection is located.

[0017] Second, the embodiments in the present application provide an occlusion mechanism, including:

[0018] The first oscillating lever, composed of a first connecting end and a first occlusion end;

[0019] A second oscillating lever, composed of a second connecting end and a second occluding end; and the above telescopic assembly;

[0020] Among which, said first connecting end and said second connecting end are both movably assembled to said telescopic part, said telescopic part makes reciprocating movements along said axis, so that said first occluding end and said second occluding end approach or move away.

[0021] In some embodiments, said occlusion mechanism comprises a housing;

[0022] The first rocker arm consists of a first rocker arm and a second rocker arm connected to said first rocker arm, said first rocker arm has a first connecting end, said second rocker arm has a first occluding end, the junction between said first rocker arm and said second rocker arm can be rotatably assembled to said housing;

[0023] The second rocker arm consists of a third rocker arm and a fourth rocker arm connected to said third rocker arm, said third rocker arm has a second connecting end, said fourth rocker arm has a second occluding end, the junction between said third rocker arm and said fourth rocker arm can be rotatably assembled to said housing.

[0024] In certain embodiments, said occlusion mechanism also comprises:

[0025] a first coupling shaft, the axis of which is perpendicular to the direction of said axis, and one end of said first coupling shaft is fixedly assembled to said telescopic part, and on the side of said first rocker arm close to said telescopic part is provided a first fitting hole into which said first rocker arm movably fits;

[0026] a second coupling shaft, which is coaxial with said first coupling shaft, and one end of said second coupling shaft is fixedly assembled to said telescopic part, and on the side of said second rocker arm close to said telescopic part is provided a second fitting hole into which said third rocker arm movably fits;

[0027] In a variant, said occlusion mechanism consists of a first stop column and a second stop column, on the two opposite sides of said telescopic part in the direction perpendicular to said axis are respectively pierced with a first stop notch and a second stop notch, one end of said first stop column is fixedly assembled to said first rocker arm, and the other end abuts against said first stop notch, one end of said second stop column is fixedly assembled to said third rocker arm, and the other end abuts against said second stop notch.

[0028] For a telescopic assembly and an occlusion mechanism based on the embodiments in the present application, the first helical orbit and the second helical orbit connect with the head and the tail to form a closed orbit, the connector can abut against the bottom wall of the first helical orbit and the bottom wall of the second helical orbit, with the rotation of the rotary shaft, the telescopic part connected to the connector can make reciprocating movements in the axis direction, thereby to realize the automatic deployments and withdrawals of the telescopic part, so as to improve the efficiency of the deployments and withdrawals. Then, the telescopic assembly pushes the first swing lever and the second swing lever to realize the occlusion action, so as to achieve the effect of simulating the automatic occlusion of the mouth for the health care products. Brief description of the figures

[0029] To describe more clearly the embodiments of the present application or the technical solutions of the prior art, a brief presentation of the drawings necessary for the description of the embodiments or the prior art is given below. It is obvious that the drawings in the following description only relate to the embodiments of the present application, the person skilled in the art can obtain other drawings arising from these provided drawings without exerting inventive efforts.

[0030] [Fig.l] represents a structural diagram of a telescopic assembly in one embodiment of the present application;

[0031] [Fig.2] shows a structural diagram of the rotating shaft in one embodiment of the present application;

[0032] [Fig.3] represents an enlarged schematic view of part C of [Fig.2];

[0033] [Fig.4] represents an enlarged schematic view of part D of [Fig.2];

[0034] [Fig.5] shows a structural diagram of the combination of a telescopic part and an auxiliary mounting part in one embodiment of the present application;

[0035] [Fig.6] represents a diagram of the overall structure of an occlusion mechanism in an embodiment of the present application;

[0036] [Fig.7] shows a partial sectional structural diagram of an occlusion mechanism in one embodiment of the present application;

[0037] [Fig.8] shows an explosive structural diagram of an occlusion mechanism in one embodiment of the present application.

[0038] Marking on the figures:

[0039] 10. Telescopic assembly;

[0040] 11. Rotating shaft; 111. Helical orbit; 112. First helical orbit; 1121. First lateral wall; 1122. Second lateral wall; 1123. First lower wall; 113. Second helical orbit; 1131. Third lateral wall; 1132. Fourth lateral wall; 1133. Second lower wall;

[0041] 12. Telescopic part; 121. Extension notch;

[0042] 13. Connector 131. Coupling shaft; 132. Stop piece;

[0043] 14. Auxiliary mounting part; 141. Through hole 142. Positioning hole; 145. Mounting hole; 146. Second notch;

[0044] 15. Locking piece; 151. Positioning projection; 152. Limiting hole; 154. First notch;

[0045] 17. Drive part;

[0046] 21. First swing lever; 211. First connecting end; 212. First occlusion end; 213. First swing lever; 2131. First nesting hole; 214. Second swing lever; 215. First passage hole;

[0047] 22. Second swing lever; 221. Second connecting end; 222. Second occlusion end; 223. Third swing lever; 2231. Second nesting hole; 224. Fourth swing lever; 225. Second passage hole;

[0048] 23. Housing

[0049] 25. Second coupling shaft; 26. First fixed shaft; 27. Second shaft fixed ;

[0050] H. Direction of the axis; A. First point B. Second point Detailed description

[0051] In order to better understand the objective, technical solutions and advantages of the present application, the present application is described in more detail below by combining with the attached figures and embodiments. It is understood that the specific embodiments described herein only serve to interpret the present application, instead of limiting it.

[0052] In the prior art, the occlusion mechanism generally consists of two oppositely arranged occlusion arms, which approach and move away from each other at a certain angle to thereby achieve the occlusion action. Limited by the mechanical structure, the occlusion mechanism cannot meet the needs of users due to its low occlusion force and poor automatic occlusion effect.

[0053] In order to solve the above problems, please see [Fig.l] and [Fig.2], firstly, the present application provides a telescopic assembly 10, said telescopic assembly 10 consists of a rotating shaft 11, a telescopic part 12 and a connector 13.

[0054] The rotating shaft 11 may be cylindrical, at the circumference of the rotating shaft 11 is provided a helical orbit 111 extending along the axial direction H.

[0055] The helical orbit 111 has a depth from the outer wall of the rotating shaft 11 to the central axis H, thus, perpendicular to the extension direction of the helical orbit 111, the section of the helical orbit 111 may be arc-shaped or U-shaped, the section shape of the helical orbit 111 is not limited within the scope of the present application and can be provided according to actual needs.

[0056] The helical orbit 111 may comprise a first helical orbit 112 and a second helical orbit 113, the first helical orbit 112 and the second helical orbit 113 have opposite spiraling directions, and the head of the first helical orbit 112 is communicated with the tail of the second helical orbit 113, the junction point is marked by the first point A, and the tail of the first helical orbit 112 is communicated with the head of the second helical orbit 113, the junction point is marked by the first point B, thus, the first helical orbit 112 and the second helical orbit 113 connect at the head and the tail to form a closed orbit.

[0057] The telescopic piece 12 is located on the rotating shaft 11 side in the axial direction H, the connector 13 is located between the rotating shaft 11 and the telescopic piece 12, and one end of the connector 13 movably connects to the telescopic piece 12, and the other end abuts against the helical orbit 111, as the rotating shaft 11 rotates, the end of the connector 13 abutting against the helical orbit 111 moves along the helical orbit 111; at the same time, the first helical orbit 112 and the second helical orbit 113 have opposite spiral directions, which allows the telescopic piece 12 to make reciprocating movements in the axial direction H.

[0058] The connector 13 has a connecting end (not shown in the figure) and a stop end (not shown in the figure), the connecting end movably connects to the telescopic part 12, the stop end abuts against the bottom of the helical orbit 111, so that the connecting end can rotate at several angles relative to the telescopic part 12 with the variation of the spiralization angle of the first helical orbit 112 and the second helical orbit 113 when the stop end abuts against the first helical orbit 112 and the second helical orbit 113, to thereby ensure the reciprocating movements of the stop end on the helical orbit 111.

[0059] It is noted that the connector 13 and the telescopic part 12 can connect to each other in a movably ball-joint or cardan-joint manner, etc., without limitation in the present application, the connection means can be provided according to actual needs.

[0060] Please see [Fig.2] and [Fig.3], the helical orbit 111 may be U-section, the first helical orbit 112 may be a left-hand spiral orbit, and consists of a first side wall 1121, a second side wall 1122 as well as a first bottom wall 1123 connecting the first side wall 1121 and the second side wall 1122, the first side wall 1121 and the second side wall 1122 are arranged opposite, the abutment end of the connector 13 may abut against the first bottom wall 1123.Taking the rotation of the rotary shaft 11 along the Z axis (the Z axis direction is the rotation direction in the H axis direction) as an example, when the rotary shaft 11 rotates along the Z axis, the abutting end of the connector 13 is pressed by the first side wall 1121 and moves toward the X direction (the X direction is parallel to the H axis direction) along the left spiral orbit, and thus rotates along the Z axis together with the rotary shaft 11, the abutting end of the connector 13 moves to the first point A under the effect of inertia; at this time, the abutting end of the connector 13 can move toward the second helical orbit 113 under the effect of inertia, and abut against the bottom wall of the second helical orbit 113.

[0061] Please see [Fig.4] in combination with [Fig.2], the second helical orbit 113 may be a right-hand spiral orbit whose spiraling direction is opposite to that of the first helical orbit 112, and consists of a third side wall 1131 and a fourth side wall 1132 arranged opposite each other as well as a second bottom wall 1133 connecting the third side wall 1131 and the fourth side wall 1132, the third side wall 1131 and the fourth side wall 1132 are arranged opposite each other, the abutment end of the connector 13 may abut against the second bottom wall 1133.The abutment end of the connector 13 moves to the second bottom wall 1133, the rotating shaft 11 rotates along the Z axis, the abutment end of the connector 13, supported by the third side wall 1131, moves along the S direction of the orbit to the right (the S direction is the opposite direction to the X direction), and thus rotates along the Z axis together with the rotating shaft 11, the abutment end of the connector 13 moves to the second point B; at this time, the abutment end of the connector 13 can move to the first wall 1123 of the first orbit under the effect of inertia, and abut against the first bottom wall 1123.

[0062] With the rotation of the rotary shaft 11 along the Z axis, the stop end of the connector 13 makes back and forth movements between the first point A and the second point B in the direction of the H axis, the connection end of the connector 13 is movably connected to the telescopic part 12, the connector 13 can thus cause the telescopic part 12 to be deployed and withdrawn in the direction of the H axis, so that the telescopic part 12 makes regular back and forth movements in the direction of the H axis.

[0063] More specifically, the first point A and the second point B may be rounded, so that the stop end of the connector 13 can smoothly swing between the first helical orbit 112 and the second helical orbit 113, so that the telescopic part 12 can make regular back-and-forth movements in the direction of the axis H, to achieve automatic deployments and withdrawals of the telescopic part 12.

[0064] It is noted that the rotating shaft 11 rotates in only one direction, the rotation of the rotating shaft 11 can be driven by the driving piece 17, the driving piece 17 can be a motor, one end of the rotating shaft 11 can be fixedly connected to the motor, so that the motor drives the rotation of the rotating shaft 11, the present application does not limit the type of the driving piece 17 which can be provided according to actual needs.

[0065] More specifically, when the abutment end of the connector 13 abuts against the helical orbit 111, the first side wall 1121 and the third side wall 1131 apply forces to the abutment end of the connector 13, and the abutment end of the connector 13 also applies a reaction force to the first side wall 1121 and the third side wall 1131, the distance between the telescopic piece 12 and the rotating shaft 11 increases, which causes the abutment end of the connector 13 to separate from the bottom wall of the helical orbit 111.

[0066] In order to prevent the stop end of the connector 13 from separating from the bottom wall of the helical orbit 111, the telescopic part 12 may be provided with an extension notch 121, the extension notch 121 has a circular section in the direction perpendicular to the direction of the H axis, the rotating shaft 11 can be movably placed in the extension notch 121, and the axis of the extension notch 121 and the axis of the rotating shaft 11 are collinear. Thus, even if the first side wall 1121 or the third side wall 1131 is subjected to the reaction force applied by the abutment end of the connector 13, the abutment portion of the connector 13 can still be located in the helical orbit 111 due to the limitation of the inner side wall of the extension notch 121.

[0067] It is noted that the diameter of the cross-sectional circle of the extension notch 121 perpendicular to the direction of the H axis is the first diameter, then the diameter of the cross-sectional circle of the rotating shaft 11 perpendicular to the direction of the H axis is the second diameter, the first diameter is greater than the second diameter, so that the rotating shaft 11 can be movably placed in the extension notch 121, the first diameter and the second diameter are not limited within the scope of the present application and can be provided according to actual needs.

[0068] In some embodiments, the telescopic assembly 10 may also comprise a limiter (not shown in the figure), the limiter may be in the form of a rod and extends along the direction of the H axis, the telescopic part 12 may be slidably assembled on the limiter, in a structure similar to the screw-nut pair; specifically, the position of the limiter relative to the rotary shaft 11 is fixed, so that the distance between the limiter and the rotary shaft 11 is constant; thus, even if the first side wall 1121 or the third side wall 1131 is subjected to the reaction force applied by the abutment end of the connector 13, the abutment part of the connector 13 may always be located in the helical orbit 111 thanks to the constant distance between the limiter and the rotary shaft 11;thus, this allows the telescopic part 12 not to rotate with the rotation of the helical orbit 111, so that the telescopic part 12 makes linear reciprocating movements in the direction limited by the limiter. ;

[0069] More specifically, please combine with [Fig.2], the first helical orbit 112 and the second helical orbit 113 extend over the same length, so that the displacement distances of the telescopic part 12 along the direction of the axis H from the first point A to the second point B and from the second point B to the first point A are equal, which thus makes the forward path of the telescopic part 12 equal to its return path along the direction of the axis H.The equal distances between the first point A and the second point B and the same number of turns of the first helical orbit 112 and the second helical orbit 113 make it possible to make the speed of movement of the telescopic part 12 from the first point A to the second point B equal to its speed of movement from the second point B to the first point A, thus improving the regularity of the back-and-forth movements of the telescopic part 12 along the rotary shaft 11.

[0070] More specifically, please see [Fig.5] and [Fig.l], a telescopic assembly 10 also comprises an auxiliary mounting part 14, the auxiliary mounting part 14 is fixedly assembled to the telescopic part 12 by gluing or by interlocking, in some embodiments, the auxiliary mounting part 14 may also be formed integrally with the telescopic part 12; the specific assembly means is not limited within the scope of the present application and may be provided according to actual needs.

[0071] Please see [Fig.l], the auxiliary mounting part 14 is used to fix the connector 13 between the rotating shaft 11 and the inner wall of the extension notch 121; specifically, on the auxiliary mounting part 14 is provided a through hole 141 penetrating into the auxiliary mounting part 14 in the direction of the H axis, the axis of the through hole 141 and the axis of the extension notch 121 are collinear, the rotating shaft 11 is movably placed in the through hole 141 and the extension notch 121, so that the rotating shaft 11 can pass through the through hole 141 and extend to the extension notch 121, it is noted that the diameter D3 of the through hole in the direction perpendicular to the axis is equal to or greater than the diameter DI of the cross-sectional circle of the extension notch 121 in the direction perpendicular to the direction of the axis H, so that the rotating shaft 11 passes through the through hole 141 and extends to the extension notch 121.

[0072] In order to facilitate the mounting and fixing of the connector 13, on the auxiliary mounting part 14 is opened a mounting hole 145, the mounting hole 145 extends in the direction perpendicular to the axis H to be communicated with the passage hole 141, the telescopic assembly 10 also comprises a locking part 15, the locking part 15 is plugged into the mounting hole 145.

[0073] It is noted that the section of the mounting hole 145 in the direction perpendicular to the H axis may be a first rectangle, the section of the locking piece 15 in the direction perpendicular to the H axis may also be a second rectangle, the length and width of the first rectangle are greater than those of the second rectangle, so that the locking piece 15 can penetrate into the mounting hole 145 in the direction perpendicular to the H axis. The lengths and widths of the first rectangle and the second rectangle are not precisely limited within the scope of the present application and can be provided according to actual needs.

[0074] In some embodiments, the cross-section of the mounting hole 145 in the direction perpendicular to the H axis may also be circular or polygonal, etc., the cross-sectional shape of the locking piece 15 is similar to that of the mounting hole 145, the cross-sectional shapes of the mounting hole 145 and the locking piece 15 are not limited within the scope of the present application and may be provided according to actual needs.

[0075] More specifically, on the projecting portion of the auxiliary mounting piece 14 out of the telescopic piece 12 is opened a positioning hole 142, the positioning hole 142 passes through the auxiliary mounting piece 14 in the direction of the H axis and is communicated with the through hole 141; On the locking piece 15 is provided a limiting hole 152, the limiting hole 152 passes through the locking piece in said direction of the H axis, and the axis of the positioning hole 142 and the axis of the limiting hole 152 are collinear, and the cross-sectional shape of the positioning hole 142 is similar to that of the limiting hole 152; a telescopic assembly 10 also comprises a fixing pin (not shown in the figure) which successively passes through the positioning hole 142 and the limiting hole 152, so that the locking piece 15 can be fixed in the mounting hole 145.

[0076] It is noted that the section of the positioning hole 142 in the direction perpendicular to the axis can also be in circular or polygonal force, etc., the shape of the section of the positioning hole 142 is not limited within the scope of the present application and can be provided according to actual needs.

[0077] Please see [Fig.l], the connector 13 may be a coupling shaft 131, one end of which is movably mounted in the positioning notch and the other end abuts against the helical orbit 111; the connector 13 may also comprise a coupling shaft 131 and a stop piece 132, the stop piece 132 is arcuate configured at the same rotation angle as the helical orbit 111, and abuts against the bottom of the helical orbit 111, then one end of the coupling shaft 131 is movably mounted in the positioning notch and its other end is fixedly assembled to the stop piece 132.

[0078] It should be noted that the two ends of the stop piece 132 can be inclined (not shown in the figure), so that the stop piece 132 moves on the first helical orbit 112 and the second helical orbit 113.

[0079] More specifically, a first notch 154 is opened on the side of the locking piece 15 close to the side wall of the mounting hole 145, and a second notch 146 is opened at the portion corresponding to the first notch 154 on the inner wall of the mounting hole 145, the first notch 154 and the second notch 146 close correspondingly to form a positioning hole (not shown in the figure).

[0080] The connector 13 consists of a coupling shaft 131 and a stop piece 132, the first notch 154 and the second 146 can close to form a positioning hole, the coupling shaft 131 can be movably placed in the positioning hole, the stop piece 132 is assembled at one end of the coupling shaft 131, since the stop piece 132 is on one end of the coupling shaft 131, the coupling shaft 131 can move in the through hole by the limitation of the stop piece 132.

[0081] In some embodiments, the first notch 154 and the second notch 146 may also close in correspondence to form a positioning notch (not shown in the figure), if the connector 13 comprises a coupling shaft 131, one end of the coupling shaft 131 is plugged into the positioning notch and may abut against the positioning notch bottom, to thus allow the coupling shaft 131 to move in the positioning notch.

[0082] More specifically, in order to further improve the assembly strength between the locking piece 15 and the auxiliary mounting piece 14, on the outer side wall of the locking piece 15 may also be provided a positioning projection 151, at the portion corresponding to the positioning projection 151 on the inner wall of the through hole 141 is drilled a positioning notch (not shown in the figure) in which the positioning projection 151 is located, so that the positioning projection 151 fits into the positioning notch, thereby enabling the locking piece 15 to be firmly assembled to the auxiliary mounting piece 14, i.e., the connection and disconnection between the locking piece 15 and the auxiliary mounting piece 14 enables them to assemble or separate, to facilitate the fixed assembly between these two pieces, and improve the ease of their assembly.

[0083] In some embodiments, on the inner wall of the through hole 141 may also be provided a projection (not shown in the figure), at the portion corresponding to the projection on the locking piece 15 may also be provided a notch (not shown in the figure) in which the projection is located, in order to achieve the interlocking assembly between the locking piece 15 and the auxiliary mounting piece 14. The assembly means between the locking piece 15 and the auxiliary mounting piece 14 is not limited within the scope of the present application, and may be provided according to actual needs.

[0084] Second, please see Figures 6 to 8, the present application provides an occlusion mechanism which may consist of a swing lever 21, a second swing lever 22 and a telescopic assembly 10 described above.

[0085] The first swing lever 21 may have a first connecting end 211 and a first occluding end 212, the second swing lever 22 may also have a second connecting end 221 and a second occluding end 222. The first connecting end 211 and the second connecting end 221 are all assembled to the telescopic part 12, the telescopic part 12 makes reciprocating movements in the direction of the H axis, so that the first occluding end 212 and the second occluding end 222 move towards and away from each other, in order to carry out the occluding action, to thereby occlude the object placed between the first occluding end 212 and the second occluding end 222.

[0086] More specifically, the occlusion mechanism also comprises a housing 23, the housing 23 envelops the circumference of the telescopic assembly 10, on the housing 23 is provided an extension-retraction section along the axis, allowing the telescopic assembly 10 to move back and forth in the housing 23, and making it possible to avoid the impact of external factors on the telescopic assembly 10, to thereby protect the telescopic assembly.

[0087] Specifically, please see [Fig.8], the first rocker arm 21 consists of a first rocker arm 213 and a second rocker arm 214 connected to the first rocker arm 213, the first rocker arm 213 has a first connection end 211, the second rocker arm 214 has a first occluding end 212, the end of the first rocker arm 213 away from the first connecting end 211 is fixedly assembled to the end of the second rocker arm 214 away from the first occluding end 212 by gluing or integrally forming, etc., the specific assembly means can be provided according to actual needs.

[0088] There is an included angle between the first rocker arm 213 and the second rocker arm 214, and the junction between the first rocker arm 213 and the second rocker arm 214 can be rotatably assembled to the housing 23, as the telescopic part 12 moves back and forth in the direction of the H axis, it can drive the rotation of the first rocker arm 213, to thereby drive the rotation of the second rocker arm 214 fixedly assembled to the first rocker arm 213.

[0089] Please see [Fig.8], at the junction between the first rocker arm 213 and the second rocker arm 214 a first through hole 215 is provided, the occlusion mechanism also comprises a first fixed shaft 26, the axis of the first fixed shaft 26 is perpendicular to the direction of the H axis, and the first fixed shaft 26 is fixedly assembled on the housing 23, the first through hole 215 fits onto the first fixed shaft 26, thereby enabling a movable assembly of the junction between the first rocker arm 213 and the second rocker arm 214 to the housing 23.

[0090] It should be noted that the first fixed shaft 26 may be assembled to the housing 23 by gluing, bolting or forming in one piece, etc., the assembly means is not limited within the scope of the present application and may be provided according to actual needs.

[0091] The second rocker arm 22 consists of a second rocker arm 214 and a fourth rocker arm 224 connected to the third rocker arm 223, the third rocker arm 223 has a second connecting end 221, the fourth rocker arm 224 has a second occluding end 222, the end of the third rocker arm 223 away from the second connecting end 221 is fixedly assembled to the end of the fourth rocker arm 224 away from the second occluding end 222 by gluing or integrally forming, etc., the specific assembly means can be provided according to actual needs.

[0092] There is an included angle between the third rocker arm 223 and the fourth rocker arm 224, and the junction between the third rocker arm 223 and the fourth rocker arm 224 can be rotatably assembled to the housing 23, as the telescopic part 12 moves back and forth in the direction of the H axis, it can drive the rotation of the third rocker arm 223, to thereby drive the rotation of the fourth rocker arm 224 fixedly assembled to the third rocker arm 223.

[0093] At the junction between the third rocker arm 223 and the fourth rocker arm 224, a first through hole 225 is provided, the occlusion mechanism also comprises a second fixed shaft 27, the axis of the second fixed shaft 27 is perpendicular to the direction of the H axis, and the second fixed shaft 27 is fixedly assembled on the housing 23, the second through hole 225 fits onto the first fixed shaft 27, thereby enabling a movable assembly of the junction between the third rocker arm 223 and the fourth rocker arm 224 to the housing 23.

[0094] It should be noted that the second fixed shaft 27 can be assembled to the housing 23 by gluing, bolting or forming in one piece, etc., the assembly means is not limited within the scope of the present application and can be provided according to actual needs.

[0095] The occlusion mechanism also comprises a first coupling shaft (not shown in the figure) and a second coupling shaft 25; the axis of the first coupling shaft is perpendicular to the direction of the H axis, and one end of the first coupling shaft is fixedly assembled to the telescopic part 12, on the side of the telescopic part 12 close to the first rocker arm 213 is provided a first nesting hole 2131, the first coupling shaft is movably penetrated into the first nesting hole 2131, so that the first rocker arm 213 can pivot around the first coupling shaft.

[0096] The axis of the second coupling shaft 25 is parallel to the first coupling shaft, and one end of the second coupling shaft 25 is fixedly assembled to the telescopic part 12, on the side of the third rocker arm 223 close to the telescopic part 12 is provided a second fitting hole 2231, the second coupling shaft 25 is movably penetrated into the second fitting hole 2231, so that the third rocker arm 223 can pivot around the second coupling shaft 25.

[0097] It is noted that the first nesting hole 2131 may be a rod hole along the extension direction of the first rocker arm 213, the first coupling shaft may have a large displacement margin in the first nesting hole 2131, thereby enabling the movement flexibility of the first coupling shaft in the first nesting hole 2131 to be improved; the second nesting hole 2231 may be a rod hole along the extension direction of the second rocker arm 214, the second coupling shaft 25 may have a large displacement margin in the second nesting hole 2231, thereby enabling the movement flexibility of the second coupling shaft 25 in the second nesting hole 2231 to be improved.In some embodiments, the occlusion mechanism may consist of a first stop column (not shown in the figure) and a second stop column (not shown in the figure), on the two opposite sides of the telescopic part 12 in the direction perpendicular to the direction of the H axis are respectively pierced a first stop notch and a second stop notch, one end of . the first stop column is fixedly assembled to the first rocker arm 213, and the other end abuts against the first stop notch, one end of the second stop column is fixedly assembled to the third rocker arm 223, and the other end abuts against the second stop notch, thereby realizing a movable assembly between the first and third rocker arms 213 and 223 and the telescopic piece 12.

[0098] It should be noted that the movable assembly means between the first and third rocker arms 213 and 214 and the telescopic part 12 is not limited within the scope of the present application and can be provided according to actual needs.

[0099] With reciprocating movements of the telescopic part 12 in the direction of the H axis, the first coupling shaft and the second coupling shaft 25 being fixedly assembled to the telescopic part 12, the telescopic part 12 can drive the first rocker arm 213 to rotate via the first coupling shaft, and the telescopic part 12 can also drive the third rocker arm 223 to rotate via the second coupling shaft 25; thereby driving the second rocker arm 214 and the fourth rocker arm 224 to rotate, and allowing the second rocker arm 214 and the fourth rocker arm 224 to move toward or away from each other, thereby realizing the occlusion between the second rocker arm 214 and the fourth rocker arm 224.

[0100] It should be noted that the longer the back-and-forth movement distance of the telescopic part 12, the closer the first occlusion end 212 and the second occlusion end 222 are, that is, the shorter the distance between the first occlusion end 212 and the second occlusion end 222, the stronger the occlusion intensity on the object placed between the first occlusion end 212 and the second occlusion end 222.

[0101] Thus, the rotation angle of the third rocker arm 223 and the fourth rocker arm 224 can be increased by adjusting the extension length of the first helical orbit 112 and the second helical orbit 113, and the occlusion between the second rocker arm 214 and the fourth rocker arm 224 intensified by adjusting the distance between the first occluding end 212 and the second occluding end 222.

[0102] Identical or similar reference numerals in the accompanying figures in this embodiment correspond to identical or similar components; in the description of the present application, it is understood that the orientations or positional relationships indicated by terms such as "top", "bottom", "left", "right" are those based on the accompanying figures, and are intended only to describe the present application and simplify the description, instead of indicating or implying that the device or element under consideration must have a specific orientation, be constructed or operate in a specific direction. Terms describing the positional relationships position in the figures are used for illustrative purposes only, and should not be construed as a limitation of this patent, those of ordinary skill in the art may understand the specific meanings of the above terms depending on the specific circumstances.

[0103] The above only corresponds to preferred embodiments of the present application which are not intended to limit the present application, any modification, substitution or improvement, etc. made on the basis of the spirit and principle of the present application must be covered by the protection of the present application.

Claims

1. Claims A telescopic assembly, characterized in that it comprises: a rotating shaft (11), at the circumference of which orbits (111, 112, 113) are provided which extend along the axis, said helical orbits (111, 112, 113) comprising the first helical orbit (112) and the second helical orbit (113) whose spiral direction is opposite to that of the first helical orbit (112), the head of said first helical orbit (112) communicating with the tail of said second helical orbit (113), and the tail of said first helical orbit (112) communicating with the head of said second helical orbit (113); a telescopic part (12), which is located on one side of said rotating shaft (11) and moves linearly back and forth along said axis; a connector (13), which is located between said rotating shaft (11) and said telescopic part (12),said connector (13) is movably assembled to said telescopic part (12) by one end and abuts against said helical orbits by the other end, said telescopic part (12) is provided with an extension notch (121) in which said rotary shaft (11) can be laid and the axis of said extension notch (121) and the axis of said rotary shaft (11) are collinear, the telescopic assembly also comprises: an auxiliary mounting part (14) which is fixedly assembled to said telescopic part (12), and a through hole (141) via which said auxiliary mounting part (14) penetrates in the direction of the axis, the axis of said through hole (141) and the axis of said extension notch (121), said rotary shaft (11) movably fits into said through hole (141) and said extension notch (121),on said auxiliary mounting part (14) is opened a mounting hole (145) which extends in the direction perpendicular to the axis to be communicated with said through hole (141); said telescopic assembly also comprises a locking part (15), which is plugged into said mounting hole (145) and is provided with a positioning notch on the side close to said extension notch (121), one end of said connector (13) is movably mounted in said positioning notch.,

2. The telescopic assembly according to claim 1, characterized in that: said first helical orbit (112) and said second orbit (113) have the same extension lengths, and said first helical orbit (112) and said second orbit (113) have the same number of turns.

3. The telescopic assembly according to claim 1, characterized in that said connector (13) comprises a coupling shaft (131) one end of which is movably mounted in the positioning notch and the other end abuts against said helical orbit; alternatively, said connector (13) comprises a coupling shaft (131) and a stop piece (132), said stop piece (132) is arcuate configured at the same rotation angle as said helical orbit, and abuts against the bottom of said helical orbit, then one end of said coupling shaft (131) is movably mounted in the positioning notch and its other end is fixedly assembled to said stop piece (132).

4. The telescopic assembly according to claim 1, characterized in that said auxiliary mounting part (14) is provided with a positioning hole (142), said positioning hole (142) passes through said auxiliary mounting part (14) along said axis and is communicated with said mounting hole (145); on said locking part (15) is provided a limiting hole (152), said limiting hole (152) passes through said locking part (15) in said axis direction, and the axis of said positioning hole (142) and the axis of said spacer hole are collinear; said telescopic assembly also comprises a fixing pin which successively passes through said positioning hole (142) and said limiting hole (152).

5. The telescopic assembly according to claim 1, characterized in that said locking piece (15) is provided with a projection (151), at the portion corresponding to said projection (151) on the inner wall of said through hole (141) is drilled a notch in which said projection (151) is located; alternatively, on the inner wall of said through hole (141) is provided a projection and at the portion corresponding to said projection on the locking piece (15) of said through hole (141) is drilled a notch in which said projection is located.

6. An occlusion mechanism, characterized in that it is composed of: a first swing lever (21), composed of a first connecting end (211) and a first occluding end (212); a second swing lever (22), composed of a second connecting end (221) and a second occluding end (222); and a telescopic assembly according to any one of claims 1 to 5 above;wherein, said first connecting end (211) and said second connecting end (221) are both movably assembled to said telescopic part (12), said telescopic part (12) makes reciprocating movements along said axis, so that said first occluding end (212) and said second occluding end (222) approach or move away, the telescopic assembly being configured to push the first swing lever (21) and the second swing lever (22) (22) to perform the occluding action, so as to achieve the effect of simulating the automatic occluding of the mouth for the health care products.;

7. The occlusion mechanism according to claim 6, characterized in that, said occlusion mechanism comprises a housing (23); the first rocker arm (21) consists of a first rocker arm (213) and a second rocker arm (214) connected to said first rocker arm (213), said first rocker arm (213) has a first connecting end (211), said second rocker arm (214) has a first occlusion end (212), the junction between said first rocker arm (213) and said second rocker arm (214) can be rotatably assembled to said housing (23);the second rocker arm (22) consists of a third rocker arm (223) and a fourth rocker arm (224) connected to said third rocker arm (223), said third rocker arm (223) has a second connecting end (221), said fourth rocker arm (224) has a second occluding end (222), the junction between said third rocker arm (223) and said fourth rocker arm (224) can be rotatably assembled to said housing (23).;

8. The occlusion mechanism according to claim 7, characterized in that it also comprises: a first coupling shaft, the axis of which is perpendicular to the direction of said axis, and one end of said first coupling shaft is fixedly assembled to said telescopic part (12), and on the side of said first rocker arm (213) near said telescopic part (12) there is provided a first fitting hole (2131) into which said first rocker arm (213) movably fits; a second coupling shaft (25), which is coaxial with said first coupling shaft, and one end of said second coupling shaft (25) is fixedly assembled to said telescopic part (12), and on the side of said second rocker arm (214) near said telescopic part (12) there is provided a second fitting hole (2231) into which said third rocker arm (223) movably fits;in a variant, said occlusion mechanism consists of a first stop column and a second stop column, on the two opposite sides of said telescopic part (12) in the direction perpendicular to said axis are respectively pierced a first stop notch and a second stop notch, one end of said first stop column is fixedly assembled to said first rocker arm (213), and the other end abuts against said first stop notch, one end of said second stop column is fixedly assembled to said third rocker arm (223), and the other end abuts against said second stop notch.;

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