Roller pin

Abstract

The utility model belongs to the technical field of scalp stimulation, and particularly relates to a roller pin which comprises three central rotating shaft columns, outer rotating lantern rings are rotationally connected to the outer walls of the three central rotating shaft columns, and a plurality of evenly-distributed stimulation microneedles are fixedly connected to the outer walls of the outer rotating lantern rings. A connecting shaft rod is embedded in the center rotating shaft column located in the middle, square limiting rods are embedded in the center rotating shaft columns located on the two sides, and the connecting shaft rod is rotationally connected with the square limiting rods. The outer ring of the outer side of the central rotating shaft column is rotatably connected with the outer rotating sleeve ring, so that the connection of the connecting shaft rod and the square limiting rod deviating from the central part of the central rotating shaft column can still drive the outer rotating sleeve ring and the stimulation micro-needle to roll, and the square limiting rod is rotatably connected with the connecting shaft rod; therefore, the central rotating shaft column, the outer rotating lantern ring and the stimulation microneedle which are located on the two sides can be eccentrically twisted, and only the stimulation microneedle located in the middle is kept to make contact with the scalp at the hair seam position of a user.

Description

Technical Field

[0001] The utility model belongs to the technical field of scalp stimulation, and particularly relates to a needle roller. Background Art

[0002] After using hair growth medicine on the scalp, rolling the scalp with a needle roller can effectively stimulate the scalp hair follicles and enhance the absorption of the medicine. When the current hair growth roller is used to stimulate a large area of ​​the scalp, the needle roller can directly roll smoothly on the part of the scalp where hair is missing. However, some patients may experience gradual thinning of the hair at the hairline due to daily pulling of their hair by combing their hair, or the hairline may become wider due to the effect of hormones. Only the scalp at the hairline needs to be stimulated. When the current hair growth roller is used to stimulate the scalp at the hairline, the hair growth roller in the middle corresponds to the hairline, and the hair growth rollers on both sides will contact the hair on both sides of the hairline. The hair on both sides of the hairline will raise the position of the hair growth roller, and the entanglement of hair will hinder the rolling of the hair growth roller. When used by patients with long hair, the hair will hinder the rolling of the hair growth roller more obviously, making it inconvenient to use. Utility Model Content

[0003] The utility model provides a needle roller, which has the characteristic of not being blocked by the hair on both sides of the hairline when stimulating the scalp at the hairline of the user.

[0004] The utility model provides the following technical solution: a roller needle, including three central rotating shaft columns, the outer walls of the three central rotating shaft columns are rotatably connected to the outer rotating rings, the outer walls of the outer rotating rings are fixedly connected to a plurality of evenly distributed stimulation microneedles, the central rotating shaft column located in the middle is embedded with a connecting shaft rod, the central rotating shaft columns located on both sides are embedded with square limiting rods, the connecting shaft rods are rotatably connected to the square limiting rods, and the other side of the square limiting rods is rotatably connected to the outer connecting frame plate.

[0005] The outer wall of the central rotating shaft column is provided with a limited rotation groove, the inner wall of the outer rotating collar is fixedly connected with a limited rotation ring, and the limited rotation ring is rotatably connected to the inner wall of the limited rotation groove.

[0006] Wherein, a damping rotation shaft is fixedly connected to a side of the square limiting rod close to the connecting shaft, and the square limiting rod is rotationally connected to the connecting shaft through the damping rotation shaft.

[0007] Wherein, a connecting rod is fixedly connected to the other side of the square limiting rod, and the square limiting rod is rotatably connected to the outer connecting frame plate through the connecting rod.

[0008] Wherein, the inner wall of the outer connection frame plate is provided with a plug-in positioning groove, and the connecting rod is plugged into the plug-in positioning groove.

[0009] Wherein, a damping friction sleeve is fixedly connected to the inner wall of the plug-in positioning groove, and the damping friction sleeve is in contact with the connecting rod.

[0010] Wherein, the side wall of the outer connection frame plate is threadedly connected with an adjustable fastening bolt, and the adjustable fastening bolt is fitted with the end of the connecting rod.

[0011] The beneficial effects of the present invention are as follows: by means of the outer ring rotation connection mode of the outer rotating ring being sleeved on the outer side of the central rotating shaft column, the connection between the connecting shaft rod and the square limit rod deviating from the center of the central rotating shaft column can still drive the outer rotating ring and the stimulating microneedles to roll, and the rotation connection of the square limit rod and the connecting shaft rod enables the central rotating shaft column, the outer rotating ring and the stimulating microneedles located on both sides to be eccentrically twisted, so that only the stimulating microneedles located in the middle are kept in contact with the scalp of the user's hairline, and the outer rotating rings and stimulating microneedles located on the sides will not be obstructed by the hair on both sides of the hairline, which is more convenient to use.

[0012] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the rotating state of the rotating shaft column in the present invention;

[0015] Figure 3 It is a side view of the rotating shaft column in the utility model;

[0016] Figure 4 It is a top view of the utility model.

[0017] In the figure: 1. Central rotating shaft; 11. Limiting rotating groove; 2. Outer rotating ring; 21. Stimulating microneedle; 22. Limiting rotating ring; 3. Connecting shaft; 4. Square limiting rod; 41. Damping rotating shaft; 42. Connecting plug rod; 5. Outer connecting frame plate; 51. Inserting positioning groove; 52. Damping friction sleeve; 53. Adjustable fastening bolt. DETAILED DESCRIPTION

[0018] See also Figures 1-4 The utility model provides the following technical solutions: a needle roller, comprising three central rotating shaft columns 1, the outer walls of the three central rotating shaft columns 1 are rotatably connected to the outer rotating ring 2, the outer wall of the outer rotating ring 2 is fixedly connected to a number of evenly distributed stimulation microneedles 21, the central rotating shaft column 1 located in the middle is embedded with a connecting shaft rod 3, the central rotating shaft columns 1 located on both sides are embedded with square limiting rods 4, the connecting shaft rod 3 is rotatably connected to the square limiting rod 4, and the other side of the square limiting rod 4 is rotatably connected to the outer connecting frame plate 5.

[0019] In this embodiment, when rolling stimulation is performed on a large area of ​​the scalp, the user adjusts the three central rotating shafts 1 to a position where their lateral projections overlap, directly holds the outer connecting frame plate 5 to drive the device to move, and applies the stimulating microneedles 21 to the scalp. The stimulating microneedles 21 roll along the central rotating shaft 1 to stimulate the user's scalp. When stimulating the scalp in narrow areas such as the hairline, the user loosens the squeezing effect of the adjustable fastening bolts 53 on the connecting rod 42, then turns the central rotating shafts 1 on both sides 180 degrees, and then tightens the plugs again. The connecting positioning groove 51 squeezes and limits the connecting rod 42. After the central rotating shaft column 1, the outer rotating ring 2 and the stimulating microneedle 21 on both sides are eccentrically twisted, only the stimulating microneedle 21 located in the middle remains in contact with the scalp at the hairline of the user. Only the stimulating microneedle 21 located in the middle rolls under the action of force to stimulate the skin outside the hairline. The central rotating shaft column 1, the outer rotating ring 2 and the stimulating microneedle 21 on both sides are in a suspended state, and the outer rotating ring 2 and the stimulating microneedle 21 located on the side will not be obstructed by the hair on both sides of the hairline, making the device more convenient to use.

[0020] A limited rotation groove 11 is provided on the outer wall of the central rotating shaft column 1, and a limited rotation ring 22 is fixedly connected to the inner wall of the outer rotating ring 2, and the limited rotation ring 22 is rotatably connected to the inner wall of the limited rotation groove 11; by providing the limited rotation groove 11 and the limited rotation ring 22, the mutual rotation of the central rotating shaft column 1 and the outer rotating ring 2 can be limited, so that when the outer rotating ring 2 rotates outside the central rotating shaft column 1, the outer rotating ring 2 will not be laterally offset from the central rotating shaft column 1, so that the central rotating shaft column 1 and the outer rotating ring 2 are more stable when rotating. In actual use, a lubricating coating is provided on the contact surface of the central rotating shaft column 1 and the outer rotating ring 2, so that the central rotating shaft column 1 and the outer rotating ring 2 are smoother when rotating.

[0021] The square limit rod 4 is fixedly connected to a damping rotation shaft 41 on one side close to the connecting shaft 3, and the square limit rod 4 is rotationally connected to the connecting shaft 3 through the damping rotation shaft 41; by setting the damping rotation shaft 41, the rotation of the square limit rod 4 and the connecting shaft 3 can be facilitated, and torsional resistance can be provided. When not subjected to a large force, the central rotating shaft column 1 located in the middle will not twist relative to the central rotating shaft column 1 located on the outside. At the same time, the damping rotation shaft 41 plays a connecting role, so that the force applied to the square limit rod 4 can be applied to the central rotating shaft column 1 located in the middle through the damping rotation shaft 41 and the connecting shaft 3.

[0022] A connecting rod 42 is fixedly connected to the other side of the square limit rod 4, and the square limit rod 4 is rotatably connected to the outer connecting frame plate 5 through the connecting rod 42; by setting the connecting rod 42, the connection between the central rotating shaft column 1 and the outer connecting frame plate 5 can be facilitated.

[0023] The inner wall of the outer connecting frame plate 5 is provided with a plug-in positioning groove 51 , and the connecting rod 42 is plugged into the plug-in positioning groove 51 ; by providing the plug-in positioning groove 51 , the connecting rod 42 can be given a position so that the connecting rod 42 can be plugged into the outer connecting frame plate 5 .

[0024] A damping friction sleeve 52 is fixedly connected to the inner wall of the plug-in positioning groove 51, and the damping friction sleeve 52 fits with the connecting rod 42; by setting the damping friction sleeve 52, the resistance when the connecting rod 42 and the outer connecting frame plate 5 rotate relative to each other can be increased. When the central rotating shaft column 1 located on the outside is in normal use, it will not rotate relative to the central rotating shaft column 1 located in the middle, so that the three central rotating shaft columns 1 can operate.

[0025] The side wall of the outer connecting frame plate 5 is threadedly connected with an adjustable fastening bolt 53, which fits with the end of the connecting rod 42; by providing the adjustable fastening bolt 53, the resistance encountered by the connecting rod 42 and the outer connecting frame plate 5 when rotating relative to each other can be further increased.

[0026] The working principle and usage process of the present invention are as follows: when performing rolling stimulation on a large area of ​​scalp, the user adjusts the three central rotating shafts 1 to the position where the lateral projections overlap, directly holds the outer connecting frame plate 5 by hand to drive the device to move, and acts on the scalp with the stimulating microneedles 21. The stimulating microneedles 21 roll along the central rotating shaft 1 to stimulate the person's scalp. When stimulating the scalp in narrow areas such as the hairline, the staff relaxes the squeezing effect of the adjustable fastening bolts 53 on the connecting rod 42, and then turns the central rotating shafts 1 on both sides one hundred and eighty degrees, and then tightens the plug-in positioning grooves 51 again to squeeze and limit the connecting rod 42. After the central rotating shafts 1, the outer rotating collar 2 and the stimulating microneedles 21 on both sides are eccentrically twisted, only the stimulating microneedles 21 in the middle remain in contact with the scalp at the hairline of the user, and only the stimulating microneedles 21 in the middle roll under the action of force to stimulate the skin outside the hairline.

Claims

1. A needle roller, characterized in that: The invention comprises three central rotating shaft columns (1), the outer walls of the three central rotating shaft columns (1) are all rotatably connected to an outer rotating ring (2), the outer wall of the outer rotating ring (2) is fixedly connected to a plurality of evenly distributed stimulation microneedles (21), the central rotating shaft column (1) located in the middle is embedded with a connecting shaft rod (3), the central rotating shaft columns (1) located on both sides are embedded with square limiting rods (4), the connecting shaft rod (3) is rotatably connected to the square limiting rod (4), and the other side of the square limiting rod (4) is rotatably connected to an outer connecting frame plate (5).

2. The needle roller according to claim 1, characterized in that: The outer wall of the central rotating shaft column (1) is provided with a limited rotation groove (11), the inner wall of the outer rotating collar (2) is fixedly connected with a limited rotation ring (22), and the limited rotation ring (22) is rotatably connected to the inner wall of the limited rotation groove (11).

3. The needle roller according to claim 1, characterized in that: A damping rotation shaft (41) is fixedly connected to one side of the square limiting rod (4) close to the connecting shaft (3), and the square limiting rod (4) is rotationally connected to the connecting shaft (3) via the damping rotation shaft (41).

4. The needle roller according to claim 1, characterized in that: A connecting rod (42) is fixedly connected to the other side of the square limiting rod (4), and the square limiting rod (4) is rotatably connected to the outer connecting frame plate (5) via the connecting rod (42).

5. The needle roller according to claim 4, characterized in that: The inner wall of the outer connection frame plate (5) is provided with a plug-in positioning groove (51), and the connection plug rod (42) is plugged into the plug-in positioning groove (51).

6. The needle roller according to claim 5, characterized in that: A damping friction sleeve (52) is fixedly connected to the inner wall of the insertion positioning groove (51), and the damping friction sleeve (52) is fitted with the connecting rod (42).

7. The needle roller according to claim 6, characterized in that: The side wall of the outer connection frame plate (5) is threadedly connected with an adjustable fastening bolt (53), and the adjustable fastening bolt (53) is fitted with the end of the connection rod (42).

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