Massage instrument with width-adjustable massage area
By using a motor-driven rotating shaft and eccentric shaft to drive the swing arm movement, combined with the meshing of the hinge joint and the rack and pinion of the drive wheel, the problem of large manual adjustment force and poor stability in existing massagers is solved, and convenient and stable adjustment of the massage area size is achieved.
Patent Information
- Application Number
- CN202522660496.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-12-16
AI Technical Summary
Existing massagers require manual adjustment of the massage area width, which is inconvenient due to the large force required and poor stability.
The motor drives the rotating shaft to rotate, which in turn drives the swing arm to move via the eccentric shaft. Combined with the meshing of the hinge joint and the rack and pinion of the drive wheel, the size of the massage area can be automatically adjusted. The worm gear is used to reduce the speed and increase the torque.
It enables stable and convenient adjustment of the massage area size, improving the user experience.
Smart Images

Figure CN223810714U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to massager technical field, especially involve a kind of massage area width adjustable massage instrument. BACKGROUND
[0002] In prior art, a China utility model patent application No. 202323218600.9 discloses a massage instrument with adjustable width, which comprises two massage assemblies, a rotating shaft, a shell and a distance adjusting assembly. The massage assembly comprises a massage piece, a first threaded part and a second threaded part. The first threaded part is rotatably connected to the massage piece. The second threaded part comprises a threaded portion and a connecting portion. The threaded portion is screwed into the first threaded part. The rotating shaft passes through the two massage assemblies. The shell has a first accommodating groove and two first accommodating cavities that are connected. One connecting portion is arranged in one first accommodating cavity. The distance adjusting assembly comprises a transmission sleeve and a torsion piece arranged in the first accommodating groove. The torsion piece is rotatable around the central axis and is connected to the shell. The inner surface of the transmission sleeve is in transmission abutment with the circumferential surface of the torsion piece and the connecting portion. The transmission sleeve is arranged in the first accommodating groove and the first accommodating cavity. The width of the two massage assemblies can be changed by rotating the torsion piece. However, this adjustment method requires manual rotation of the torsion piece. When the torsion piece is too tight, a large force is required. When the torsion piece is too loose, the stability is poor, and the adjustment is not convenient. SUMMARY
[0003] The utility model discloses a massage instrument with adjustable massage area width. When the size of the massage area needs to be adjusted, the rotating shaft is driven to rotate by adjusting the motor. At this time, the driving wheel is driven to rotate by the rotating shaft, thereby driving the hinge joint to slide. At this time, the hinge shaft is pulled by the side wall of the vertical groove, which can drive the overall angle adjustment of the swing arm, thereby controlling the angle of the two swing arms. The adjustment is stable.
[0004] The utility model discloses a massage area width adjustable massage appearance, including the casing, two groups of massage head are movably arranged on the casing, each group of massage head is provided with two swing arms, and the two swing arms are hingedly arranged on the casing and form a massage area, the casing still is equipped with the drive motor for driving two swing arms swing and realizing massage, the output shaft of drive motor is linked with eccentric shaft, and the eccentric shaft is provided with the connecting rod at the position corresponding to each swing arm, and the eccentric shaft is equipped with reversely arranged first eccentric section and second eccentric section, the connecting rod one end rotationally covers the corresponding eccentric section, and the other end is hingedly arranged on the corresponding swing arm, when the eccentric shaft rotates, can drive the swing arm swing and form the pinch massage of massage area, and its characterized in that: the tail position corresponding to the swing arm of casing is provided with the hinge joint, and the casing still is equipped with the adjusting motor and the rotation axis linkage cooperation of adjusting motor output shaft, the back of hinge joint is equipped with the rack, and the driving wheel rotation is arranged on the casing, and the driving wheel is engaged with the rack, and the driving wheel is linked with the rotation axis cooperation, be equipped with the hinge shaft on the swing arm, be provided with the vertical groove on the hinge joint, and the hinge shaft rotation is arranged in the vertical groove and can slide and avoid along the vertical groove.
[0005] Adopt the above technical scheme, when using, through the work of drive motor can drive eccentric shaft to rotate, at this moment, eccentric shaft drives first eccentric section and second eccentric section transmission, because first eccentric section and second eccentric section are reversely arranged, when through connecting rod pull and push, make two swing arms can do reverse motion and realize the effect of pinch, the specific angle can be adjusted according to test, this paper does not make detailed specific introduction, when needing to adjust the size of massage area, through adjusting motor drives rotation axis to rotate, at this moment, rotation axis drives driving wheel to rotate, thereby driving hinge joint to slip, at this moment, through the lateral wall of vertical groove pull hinge shaft, can drive the angle adjustment of swing arm whole, thereby control the angle of two swing arms opening, when the angle becomes big, massage area increases, when the angle becomes small, massage area decreases, most preferably, driving wheel adopts worm gear, and worm gear is arranged on rotation axis, can reduce the rotation speed, increase the torsion.
[0006] The utility model further provides: the casing is provided with mounting bracket, the hinge joint is suspended and transversely guided and slides on the mounting bracket, and the driving wheel rotation is arranged on the mounting bracket.
[0007] Adopt the above technical scheme, through mounting bracket, the installation of hinge joint and driving wheel can be convenient, so that the two components can be suspended in the tail of swing arm.
[0008] The utility model further provides: the mounting bracket is provided with the avoiding groove for the left and right direction and the up and down direction swing of hinge shaft avoiding, and the hinge shaft extends to the vertical groove through the avoiding groove.
[0009] According to the technical scheme, when the hinge shaft is inserted on the vertical groove through the mounting support, the avoiding groove can provide avoiding in horizontal and vertical directions, and does not hinder the swing arm adjustment, and the avoiding groove is preferably a slant groove or an arc-shaped groove.
[0010] The further setting of the utility model discloses: the swing arm includes base and treatment element, and the treatment element is detachably connected on the base.
[0011] According to the technical scheme, the treatment element can be replaced, for example, a simulated arm or a massage ball can be replaced.
[0012] The further setting of the utility model discloses: the shell includes bottom shell, middle shell and top shell arranged in a split mode, the first installation cavity is formed between the bottom shell and the middle shell, the second installation cavity is formed between the top shell and the middle shell, the adjusting motor and the driving motor are arranged in the first installation cavity, and the circuit board and the battery are arranged in the second installation cavity.
[0013] According to the technical scheme, the internal space is separated by the middle shell, the battery and the circuit board are arranged in a region, and the structural layout is more reasonable. ACCURATE DRAWINGS
[0014] Figure 1 It is the whole structure schematic view of the utility model;
[0015] Figure 2 It is Figure 1 It is another view structure schematic view;
[0016] Figure 3 It is the top shell structure schematic view of the utility model after being removed;
[0017] Figure 4 It is the top shell and middle shell structure schematic view of the utility model after being removed;
[0018] Figure 5 It is the internal structure schematic view of the utility model;
[0019] Figure 6 It is Figure 5 Partial structure schematic view;
[0020] Figure 7 It is Figure 6 Partial structure schematic view;
[0021] Figure 8 It is the eccentric shaft structure schematic view of the utility model;
[0022] Figure 9 It is Figure 6 Local a enlarged view. CONCRETE IMPLEMENTING METHOD
[0023] The concrete implementing method of the utility model is explained in detail in combination with the drawings.
[0024] In the description of the utility model, it needs to understand that the orientation or position relation indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.
[0025] The utility model discloses a massage area width adjustable massage appearance, including the casing 1, the casing 1 is movably provided with two groups of massage head 2, and each group of massage head 2 is provided with two swing arms 21, and two swing arms 21 are hingedly arranged on the casing 1 and form massage area 22, the casing 1 still is equipped with the drive motor 3 for driving two swing arms 21 swing and realizes the drive motor 3 of massage, and the eccentric shaft 4 (most preferably adopts gear set linkage drives eccentric shaft 4 to rotate) is linked on the output shaft of drive motor 3, and the connecting rod 5 is arranged on the eccentric shaft 4 in the position corresponding to each swing arm 21, and the first eccentric section 41 and the second eccentric section 42 of reverse setting are equipped on the eccentric shaft 4, and the connecting rod 5 one end rotatable sleeve is set on the corresponding eccentric section (i.e. one end of one connecting rod 5 is sleeved on the first eccentric section 41, and the other connecting rod 5 is sleeved on the second eccentric section 42), and the other end is hingedly arranged on the corresponding swing arm 21 (most preferably, the hinging shaft is arranged on the swing arm 21, and the connecting rod 5 is hingedly arranged on the hinging shaft), when eccentric shaft 4 rotates, can drive swing arm 21 swing and form the pinch massage of massage area 22, in the utility model embodiment, the hinging head 6 is arranged on the casing 1 in the position corresponding to the tail of swing arm 21, and the casing 1 still is equipped with the adjusting motor 7 and the rotating shaft 8 (most preferably, the worm wheel is arranged on the rotating shaft 8, and the worm section is arranged on the output shaft of adjusting motor 7, and the rotating shaft 8 is driven to rotate through the worm drive worm wheel), and the back of hinging head 6 is equipped with rack 10, and the driving wheel 9 is rotatably arranged on the casing 1, the driving wheel 9 is engaged with rack 10, and the driving wheel 9 is linked with rotating shaft 8, the swing arm 21 is equipped with the hinging shaft 20, the hinging head 6 is equipped with vertical slot 61, and the hinging shaft 20 is rotatably arranged in vertical slot 61 and can slide along the vertical direction of vertical slot 61 and avoid.
[0026] Adopting the technical scheme, when in use, the eccentric shaft 4 can be driven to rotate by the driving motor 3, at this time, the first eccentric section 41 and the second eccentric section 42 are driven to rotate by the eccentric shaft 4, and when the two connecting rods 5 are pulled and pushed, the two swing arms 21 can be driven to move reversely to realize the clamping effect, and the specific angle can be adjusted according to the test, which will not be described in detail herein, when it is needed to adjust the size of the massage area, the rotating shaft 8 is driven to rotate by the adjusting motor 7, at this time, the driving wheel 9 is driven to rotate by the rotating shaft 8, thereby driving the hinge joint 6 to slide, at this time, the hinge shaft 20 can be pulled by the side wall of the vertical slot 61 to drive the swing arm 21 to rotate around the connecting rod 5 to realize the angle adjustment, thereby controlling the angle at which the two swing arms 21 are opened, when the angle is increased, the massage area 22 is increased, when the angle is decreased, the massage area 22 is decreased, and most preferably, the driving wheel 9 adopts a worm gear, and a worm is arranged on the rotating shaft 8, which can reduce the rotating speed and increase the torque.
[0027] The hinge joint 6 is suspended and horizontally guided to slide on the mounting bracket 30, and the driving wheel 9 is rotationally arranged on the mounting bracket 30, so that the mounting bracket 30 can facilitate the mounting of the hinge joint 6 and the driving wheel 9, and the two components can be suspended at the tail of the swing arm 21.
[0028] The mounting bracket 30 is provided with an avoiding slot 301 for avoiding the left-right direction and up-down direction swinging of the hinge shaft 20, and the hinge shaft 20 extends through the avoiding slot 301 into the vertical slot 61, when the hinge shaft 20 is inserted on the vertical slot 61 through the mounting bracket 30, the avoiding slot 301 can provide avoidance in the horizontal and vertical directions, and will not hinder the adjustment of the swing arm 21, and the avoiding slot 301 most preferably adopts an inclined slot or an arc-shaped slot.
[0029] The swing arm 21 comprises a base 211 and a treatment element 212, the treatment element 212 is detachably connected to the base 211 (most preferably, the base 211 is provided with a plug-in slot, and the treatment element 212 is inserted into the plug-in slot), and the treatment element 212 can be replaced, for example, a simulated arm or a massage ball can be replaced.
[0030] The shell 1 comprises a bottom shell 11, a middle shell 12 and a top shell 13 which are arranged in a split manner, a first mounting cavity is formed between the bottom shell 11 and the middle shell 12, a second mounting cavity is formed between the top shell 13 and the middle shell 12, the adjusting motor 7 and the driving motor 3 are arranged in the first mounting cavity, and the circuit board 40 and the battery 50 are arranged in the second mounting cavity, the internal space of the middle shell 12 is separated, the battery 50 and the circuit board 40 are arranged in a separate region, and the structural layout is more reasonable, and the middle part of the bottom shell 11 can be further provided with a physiotherapy element which can be a magnetic therapy or a hot compress physiotherapy.
Claims
1. A massage instrument with adjustable massage area width, comprising a shell (1), two groups of massage heads (2) movably arranged on the shell (1), each group of massage heads (2) is provided with two swing arms (21), the two swing arms (21) are hingedly arranged on the shell (1) and form a massage area (22), the shell (1) is further provided with a drive motor (3) for driving the two swing arms (21) to swing to realize massage, an eccentric shaft (4) is movably arranged on the output shaft of the drive motor (3), a connecting rod (5) is arranged on the eccentric shaft (4) corresponding to the position of each swing arm (21), the eccentric shaft (4) is provided with a first eccentric section (41) and a second eccentric section (42) arranged in opposite directions, one end of the connecting rod (5) is rotatably sleeved on the corresponding eccentric section, and the other end is hingedly arranged on the corresponding swing arm (21), when the eccentric shaft (4) rotates, the swing arm (21) can be driven to swing to form pinching massage of the massage area (22), characterized in that: The tail position of the swing arm (21) on the shell (1) is provided with a hinge joint (6), the shell (1) is further provided with an adjusting motor (7) and a rotating shaft (8) linked with the output shaft of the adjusting motor (7), the back of the hinge joint (6) is provided with a rack (10), the shell (1) is rotatably provided with a driving wheel (9), the driving wheel (9) is engaged with the rack (10), and the driving wheel (9) is linked with the rotating shaft (8), the swing arm (21) is provided with a hinge shaft (20), the hinge joint (6) is provided with a vertical slot (61), the hinge shaft (20) is rotatably arranged in the vertical slot (61) and can slide and avoid in the vertical slot (61). 2. The massage instrument with adjustable massage area width according to claim 1, characterized in that: The shell (1) is provided with a mounting bracket (30), the hinge joint (6) is suspended and transversely guided and slides on the mounting bracket (30), and the driving wheel (9) is rotatably arranged on the mounting bracket (30).
3. The massage instrument with adjustable massage area width according to claim 2, characterized in that: The mounting bracket (30) is provided with an avoiding slot (301) for avoiding the left-right direction and the up-down direction swing of the hinge shaft (20), and the hinge shaft (20) extends through the avoiding slot (301) into the vertical slot (61).
4. The massage instrument with adjustable massage area width according to claim 1 or 2 or 3, characterized in that: The swing arm (21) comprises a base (211) and a treatment member (212), and the treatment member (212) is detachably connected to the base (211).
5. The massage instrument with adjustable massage area width according to claim 3, characterized in that: The shell (1) comprises a bottom shell (11), a middle shell (12) and a top shell (13) arranged in a split mode, a first mounting cavity is formed between the bottom shell (11) and the middle shell (12), a second mounting cavity is formed between the top shell (13) and the middle shell (12), the adjusting motor (7) and the driving motor (3) are arranged in the first mounting cavity, and the second mounting cavity is provided with a circuit board (40) and a battery (50).