A mechanism for converting rotary motion into reciprocating linear motion

Abstract

The invention discloses a mechanism for converting rotary motion into reciprocating linear motion, comprising a housing and a movement, wherein the movement is installed in the housing, and the movement comprises a motor, a motor fixing seat, a motor fixing screw, a transmission shaft, a first screw, a bearing, a sliding sleeve, a shock-absorbing rubber sleeve, a second screw, a shock-absorbing rubber ring, a rear end of a track shaft, a third screw, a ball, a front end of a track shaft, a sliding shaft, a fourth screw, a connecting rod and a massage head; the motor is fixed to the motor fixing seat; a screw hole is provided on the transmission shaft, and the transmission shaft is connected to the motor output shaft and fixed by the first screw; limiting ends are provided on both sides of the rear end of the sliding sleeve, a bearing fixing groove is provided in the middle of the rear end, the bearing is installed in the bearing fixing groove, and the shock-absorbing rubber sleeve is sleeved on the limiting ends; a positioning protrusion is provided on the body of the sliding sleeve, and a shock-absorbing rubber ring is sleeved, and a positioning convex groove adapted to the positioning protrusion is provided on the shock-absorbing rubber ring. The invention runs smoothly, can improve the noise of the whole machine, does not require debugging, and has a compact structure.

Description

Technical Field

[0001] The invention relates to a massage manipulator movable mechanism, in particular to a mechanism for converting rotary motion into reciprocating linear motion. Background Art

[0002] At present, similar products all realize the transmission mechanism through rotating eccentric wheel + sliding sleeve reciprocating motion, which makes a lot of noise and vibration during motion, and the whole machine vibrates obviously when in use, which makes the user feel uncomfortable. Therefore, the development of a mechanism for converting rotary motion into reciprocating linear motion has become an urgent problem to be solved by technicians in this field. Summary of the invention

[0003] The present invention is to solve the above-mentioned deficiencies and provides a mechanism for converting rotary motion into reciprocating linear motion.

[0004] The above-mentioned object of the present invention is achieved by the following technical scheme: a mechanism for converting rotary motion into reciprocating linear motion, comprising a housing and a movement, wherein the movement is installed in the housing, and the movement comprises a motor, a motor fixing seat, a motor fixing screw, a transmission shaft, a first screw, a bearing, a sliding sleeve, a shock-absorbing rubber sleeve, a second screw, a shock-absorbing rubber ring, a rear end of a track shaft, a third screw, a ball bearing, a front end of a track shaft, a sliding shaft, a fourth screw, a connecting rod and a massage head;

[0005] The motor fixing seat is provided with fixing screw holes, and the motor is fixed to the motor fixing seat by means of motor fixing screws;

[0006] The transmission shaft is provided with a screw hole, and the transmission shaft is connected to the motor output shaft and fixed by a first screw;

[0007] The sliding sleeve is cylindrical, and has limit ends on both sides of the rear end, and a bearing fixing groove in the middle of the rear end. The bearing is installed in the bearing fixing groove, and the shock-absorbing rubber sleeve is sleeved on the limit ends;

[0008] The body of the sliding sleeve is provided with a positioning protrusion and is covered with a shock-absorbing rubber ring, and the shock-absorbing rubber ring is provided with a positioning convex groove adapted to the positioning protrusion;

[0009] The transmission shaft passes through the bearing on the sliding sleeve, and the sliding sleeve is fixed to the fixing seat by a second screw;

[0010] The sliding shaft is provided with a spherical groove, the front end of the track shaft is provided with a limit groove, the front end of the track shaft is installed inside the sliding shaft, and the ball is installed in the spherical groove; the outer wall of the sliding shaft is provided with a slider, and the inner wall of the sliding sleeve is provided with a sliding groove for the slider to slide;

[0011] The rear end of the track shaft is provided with a screw hole and a limit rod, and is installed on the front end of the track shaft through the cooperation of the limit rod and the limit groove;

[0012] The front end of the track shaft and the rear end of the track shaft are installed on the transmission shaft together with the sliding shaft through the ball bearings, and the front end of the track shaft and the rear end of the track shaft are fixed on the transmission shaft through the third screw and the fourth screw;

[0013] The massage head is installed on the front end of the connecting rod, and the rear end of the connecting rod is plugged into the sliding shaft.

[0014] Furthermore, the rear end of the connecting rod is provided with an annular groove and is covered with a reverse buckle ring. The inner wall of the front port of the sliding shaft is provided with a reverse hook groove. The reverse buckle ring is fixed in the annular groove and then inserted into the front port of the sliding shaft. The reverse buckle ring is stuck in the reverse hook groove.

[0015] Furthermore, the housing comprises a right side housing and a left side housing, and a limiting mechanism for fixing the sliding sleeve and the shock-absorbing rubber ring is provided in the right side housing and the left side housing.

[0016] The working principle of the present invention: the internal movement of the present invention is fixed on the limiting mechanism in the right shell and the left shell through the shock-absorbing rubber sleeve and the shock-absorbing rubber ring. When the motor rotates, the front end and the rear end of the track shaft fixed on the transmission shaft are driven to rotate together, and the ball fixed on the sliding shaft runs along the track groove formed by the front end and the rear end of the track shaft, which can drive the sliding shaft to achieve forward and backward reciprocating linear motion. In addition, due to the effect of the shock-absorbing rubber sleeve and the shock-absorbing rubber ring, the noise of the whole machine is greatly reduced, and the operation is more stable.

[0017] The advantages of the present invention compared with the prior art are:

[0018] 1. It runs smoothly and can improve the noise of the whole machine.

[0019] 2. This structure is an integrated movement. Compared with the traditional structure, it has lower technical requirements for installers, good product consistency, and no debugging is required.

[0020] 3. The structure can be made more compact, saving internal space of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the decomposition structure of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the sliding shaft in the present invention.

[0023] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0024] Figure 4 yes Figure 3 Cross-section view at AA in the middle. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 4 As shown, a mechanism for converting rotary motion into reciprocating linear motion comprises a housing and a movement, wherein the movement is installed in the housing, and the movement comprises a motor 1, a motor fixing seat 2, a motor fixing screw 3, a transmission shaft 4, a first screw 5, a bearing 6, a sliding sleeve 7, a shock-absorbing rubber sleeve 8, a second screw 9, a shock-absorbing rubber ring 10, a track shaft rear end 11, a third screw 12, a ball 13, a track shaft front end 14, a sliding shaft 15, a fourth screw 16, a connecting rod 17 and a massage head 18;

[0027] The motor fixing base 2 is provided with fixing screw holes 2-1, and the motor 1 is fixed to the motor fixing base 2 by means of motor fixing screws 3;

[0028] The transmission shaft 4 is provided with a screw hole 4-1, and the transmission shaft 4 is connected to the output shaft of the motor 1 and fixed by a first screw 5;

[0029] The sliding sleeve 7 is cylindrical, and has limit ends 7-1 on both sides of the rear end, and a bearing fixing groove 7-2 in the middle of the rear end. The bearing 6 is installed in the bearing fixing groove 7-2, and the shock-absorbing rubber sleeve 8 is sleeved on the limit ends 7-1;

[0030] The body of the sliding sleeve 7 is provided with a positioning protrusion 7-3, and is covered with a shock-absorbing rubber ring 10, and the shock-absorbing rubber ring 10 is provided with a positioning groove 10-1 adapted to the positioning protrusion 7-3;

[0031] The transmission shaft 4 passes through the bearing 6 on the sliding sleeve 7, and the sliding sleeve 7 is fixed to the fixing seat 2 by a second screw 9;

[0032] The sliding shaft 15 is provided with a spherical groove 15-1, the front end 14 of the track shaft is provided with a limit groove 14-1, the front end 14 of the track shaft is installed inside the sliding shaft 15, and the ball 13 is installed in the spherical groove 15-1; the outer wall of the sliding shaft 15 is provided with a slider 15-2, and the inner wall of the sliding sleeve 7 is provided with a sliding groove (not shown in the figure) for the slider 15-2 to slide;

[0033] The rear end 11 of the track shaft is provided with a screw hole 11-2 and a limiting rod 11-1, and is mounted on the front end 14 of the track shaft through the cooperation between the limiting rod 11-1 and the limiting groove 14-1;

[0034] The track shaft front end 14 and the track shaft rear end 11 are mounted on the transmission shaft 4 together with the sliding shaft 15 through the ball bearing 13, and the track shaft front end 14 and the track shaft rear end 11 are fixed on the transmission shaft 4 through the third screw 12 and the fourth screw 16;

[0035] The massage head 18 is installed on the front end of the connecting rod 17 , and the rear end of the connecting rod 17 is plugged into the sliding shaft 15 .

[0036] Furthermore, the rear end of the connecting rod 17 is provided with an annular groove (not shown in the figure) and is sleeved with a reverse buckle ring 21. The inner wall of the front end of the sliding shaft 15 is provided with a reverse hook groove 15-3. The reverse buckle ring 21 is fixed in the annular groove (not shown in the figure) and then inserted into the front end of the sliding shaft 15. The reverse buckle ring 21 is stuck in the reverse hook groove 15-3.

[0037] Furthermore, the housing includes a right shell 19 and a left shell 20 , and a limiting mechanism 20 - 1 for fixing the sliding sleeve 7 and the shock-absorbing rubber ring 10 is provided in the right shell 19 and the left shell 20 .

[0038] Working principle of the present invention: The internal movement of the present invention is fixed on the limit mechanism 20-1 in the right shell 19 and the left shell 20 through the shock-absorbing rubber sleeve 8 and the shock-absorbing rubber ring 10. When the motor 1 rotates, the front end 14 and the rear end 11 of the track shaft fixed on the transmission shaft 4 are driven to rotate together, and the ball 13 fixed on the sliding shaft 15 runs along the track groove formed by the front end 14 and the rear end 11 of the track shaft, which can drive the sliding shaft 15 to achieve reciprocating linear motion. In addition, due to the effect of the shock-absorbing rubber sleeve 8 and the shock-absorbing rubber ring 10, the noise of the whole machine is greatly reduced, and the operation is also more stable.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mechanism for converting rotary motion into reciprocating linear motion, characterized in that: It includes a housing and a movement, wherein the movement is installed in the housing, and the movement includes a motor, a motor fixing seat, a motor fixing screw, a transmission shaft, a first screw, a bearing, a sliding sleeve, a shock-absorbing rubber sleeve, a second screw, a shock-absorbing rubber ring, a rear end of a track shaft, a third screw, a ball bearing, a front end of a track shaft, a sliding shaft, a fourth screw, a connecting rod and a massage head; The motor fixing seat is provided with fixing screw holes, and the motor is fixed to the motor fixing seat by means of motor fixing screws; The transmission shaft is provided with a screw hole, and the transmission shaft is connected to the motor output shaft and fixed by a first screw; The sliding sleeve is cylindrical, and has limit ends on both sides of the rear end, and a bearing fixing groove in the middle of the rear end. The bearing is installed in the bearing fixing groove, and the shock-absorbing rubber sleeve is sleeved on the limit ends; The body of the sliding sleeve is provided with a positioning protrusion and is covered with a shock-absorbing rubber ring, and the shock-absorbing rubber ring is provided with a positioning convex groove adapted to the positioning protrusion; The transmission shaft passes through the bearing on the sliding sleeve, and the sliding sleeve is fixed to the fixing seat by a second screw; The sliding shaft is provided with a spherical groove, the front end of the track shaft is provided with a limit groove, the front end of the track shaft is installed inside the sliding shaft, and the ball is installed in the spherical groove; the outer wall of the sliding shaft is provided with a slider, and the inner wall of the sliding sleeve is provided with a sliding groove for the slider to slide; The rear end of the track shaft is provided with a screw hole and a limit rod, and is installed on the front end of the track shaft through the cooperation of the limit rod and the limit groove; The front end of the track shaft and the rear end of the track shaft are installed on the transmission shaft together with the sliding shaft through the ball bearings, and the front end of the track shaft and the rear end of the track shaft are fixed on the transmission shaft through the third screw and the fourth screw; The massage head is installed on the front end of the connecting rod, and the rear end of the connecting rod is plugged into the sliding shaft; The rear end of the connecting rod is provided with an annular groove and is covered with an inverted ring. The inner wall of the front end of the sliding shaft is provided with an inverted hook groove. The inverted ring is fixed in the annular groove and then plugged into the front end of the sliding shaft. The inverted ring is stuck in the inverted hook groove. The housing comprises a right side housing and a left side housing, and a limiting mechanism for fixing a sliding shaft sleeve and a shock-absorbing rubber ring is arranged inside the right side housing and the left side housing.

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