TWM450374U - Helmet tightness adjustment structure improvement - Google Patents

Description

Helmet elastic adjustment structure improvement

This creation department is about the improvement of the elastic adjustment structure of the helmet which can be applied to the head massager in the field of daily necessities and health massage equipment.

At present, the helmet is worn on the head of the human body as a sunscreen, rainproof and protective head. However, the general helmet has the following disadvantages: the head circumference of the helmet is fixed and does not have adjustability. Therefore, for different users, some may feel that the head space is too large, the helmet is too loose, and some may feel that the head space is too small, the helmet is too tight, and the user feels uncomfortable to wear. A part of the helmet with distance adjustment function has anti-loosening and tightening effect, but does not have the ability to prevent loosening and loosening. In particular, when the helmet is applied to a head massager of a health massage device, the human head is massaged by a massage device mounted on the helmet, and the massage effect of the product is extremely poor due to the inconvenient adjustment of the helmet, and the effect is lowered. The massage quality of the head massager.

In view of the fact that the current structure still has improvement, the creator has been engaged in the multi-year production and sales experience of related products, and has been thinking about the existing problems and thinking about the improvement method. After many improvements and tests, the helmet has finally been created. Elastic adjustment structure is improved.

Therefore, the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide an improvement in the structure of the head massager capable of adjusting the elasticity.

The technical solution adopted by the present invention to solve the technical problem is: a helmet elastic adjustment structure improvement, comprising a front casing and a rear casing, wherein both sides of the front casing and the rear casing are connected by a base in the base The transmission gear is provided, and the transmission gear is connected to the end cover through the anti-loose spring; the end cover is provided with an adjustment knob, and the end cover, the anti-loose spring, the transmission gear and the base are formed into a combination body through the adjustment knob, The front casing and the rear casing are connected at both sides with a radial rack that cooperates with the transmission gear.

The beneficial effect of the creation is that by rotating the adjustment knob, the button rotation force is sequentially transmitted to the anti-loose spring and the transmission gear, so that the transmission gear meshes with the radial gear on the rear sides of the rear casing and the front casing. The rotary motion from the adjustment knob is converted into a level shift of the front and rear housings. Therefore, the front and rear casings can be relatively far away or relatively close to realize the radial distance adjustment between the front and rear casings, thereby realizing convenient and autonomous adjustment and positioning of the helmet elastic to adapt to the head shape of different users. To improve the user experience.

The following description of the preferred embodiment of the present invention is further described below in order to enable those skilled in the art to practice the present invention to be implemented in accordance with the present specification.

First, with reference to the first to fourth figures, the present invention is an improvement of the helmet elastic adjustment structure, including the front casing 12 and the rear casing 11, and the two sides of the front casing 12 and the rear casing 11 Both are connected by a base 25, and a transmission gear 24 is mounted in the base 25, and the transmission gear 24 is connected to the end cover 22 through a lock-proof spring 23; the end cover 22 is externally provided with an adjustment knob 21 and is passed through the adjustment knob 21 The end cover 22, the anti-loose spring 23, the transmission gear 24 and the base 25 are formed as an assembly, and the front casing 12 and the rear housing 11 are connected at both sides with radial teeth that cooperate with the transmission gear 24. The teeth 241 of the bar 121 transmission gear 24 mesh with the radial rack 121.

Wherein, the helmet applied to the head massager comprises a curved front case 12 and a rear case 11 which are arranged radially along the head, and the ring-shaped case which is assembled with the human head is spliced, and the front and rear cases are both Made of good tough plastic material for proper bending.

Referring to the eighth to eleventh drawings, the base 25 has a positioning post 251, and the transmission gear 24 has a mounting hole 243 penetrating in the direction of the rotation axis thereof. The positioning post 251 of the base 25 penetrates. In the mounting hole 243 of the transmission gear 24, one side of the transmission gear 24 has teeth 241, and the other side of the transmission gear 24 has two curved struts 242, the teeth 241 of the transmission gear 24 and the radial rack 121 is engaged; the lock spring 23 has two lateral ends 231.

As shown in the fourth, sixth, and seventh figures, the end cap 22 has a through hole 222 extending through the circumference of the through hole 222, and the locking spring 23 respectively abuts the step surface. 221 and the arcuate strut 242 of the transmission gear 24, the curvature of the arcuate strut 242 is just less than the transverse end 231 of the anti-loose spring, the adjusting knob 21 has a mounting post 213, and the mounting post 213 of the adjusting knob 21 penetrates The drive gear 24 is in the mounting hole 243. The end of the mounting post 213 of the adjusting knob 21 has a buckle 212 for preventing the protrusion. After the adjusting knob is fixed by the buckle 212, the adjusting knob 21 can still rotate about its own rotation axis. In the adjusting knob 21, And a knob post 211 is disposed on both sides of the mounting post 213, and the rotation torque (hand-force) from the adjustment knob 21 is transmitted to the lateral end 231 of the anti-loose spring 23 by the two knob pillars 211. The end 231 transmits the force to the transmission gear 24, and the transmission gear 24 is meshed and transmitted by the radial rack 121 on both sides of the rear housing 11 and the front housing 12 to convert the rotational motion from the adjustment knob 21. It moves at the level of the front and rear housings.

The transmission gear 24 is mounted on the base 25 and rotatable about its own rotation axis. The adjustment knob 21 has a degree of freedom of rotation about its own rotation axis and a degree of freedom of translation along its own rotation axis; the lock spring 23 can be rotated around itself The axis rotates.

The locking spring 23 is inserted into the end cover 22 and the front outer diameter is slightly larger than the end cover 22 steps. The large aperture of the ladder hole, the compression spring 23 is loaded and compressed, and the two lateral ends 231 are reduced in arc, so as to be able to accommodate the arcuate strut 242 of the transmission gear 24, and the arcuate strut 242 of the transmission gear 24 is engaged therein. Among the two lateral ends 231, the compression springs 23 in the compressed state have a radial preload force on the hole walls of the step faces 221. When the lock spring 23 receives the torque from the knob post 211 of the adjustment knob 21 in the stepped surface 221 of the through hole of the end cover 22, the lock spring 23 can perform a rotary motion about its own rotation axis, and the lock spring 23 is on the step surface 221 When the torsion force from the arcuate strut 242 of the transmission gear 24 is received, the transverse end 231 of the anti-loose spring 23 has a tendency to radially extend the spring, and the anti-loose spring 23 acts on the pre-tightening force of the through-hole wall. The anti-loose spring 23 cannot perform a swiveling motion about its own axis of rotation. Therefore, the anti-loose spring 23 can make a rotary motion about its own rotation axis when subjected to the torque from the adjustment knob end, and the anti-loose spring cannot rotate about its own rotation axis when subjected to the force from the front and rear housing ends. That is to say, the anti-loose spring only makes a rotary motion around its own rotation axis under the action of the adjustment knob. After the adjustment knob is positioned, the anti-loose spring cannot autonomously revolve around its own rotation axis.

As shown in the first figure, the second figure, and the fifth figure, the adjustment knob, the end cover, the anti-loose spring, the transmission gear and the base can also be installed between the rear casing 11 and the upper portion of the front casing 12. An assembly formed on the upper portion of the front housing 12 and at an upper portion of the rear housing is provided with an upper rack 122 that cooperates with the transmission gear, and the upper portion of the rear housing 12 itself serves as an end cover When used with the base, the adjustment knob, the anti-loose spring, and the transmission gear are assembled in sequence. In this way, the left and right sides and the upper portion of the helmet of the head massager are provided with an elastic adjustment function. The rear side of the rear housing 11 and the front housing 12 are provided with adjusting grooves 123. The radial rack 121 and the upper rack 122 are formed on the radially extending slot wall of the adjusting slot 123. Between the end cap 22 and the base 25 for the corresponding front and rear housing points The first opening 26 and the second opening 27 are not inserted from both sides.

The anti-loose spring has two transverse ends 231, and the arc ends of the two ends are just slightly larger than the arc-shaped strut 242 of the transmission gear. The cover end 22 has a through hole penetrating therethrough, and the through hole has a stepped surface 221, and the anti-loose spring respectively abuts against the stepped surface 221 And the transmission gear 24. The front outer diameter of the anti-loose spring is slightly larger than the inner diameter of the large hole. After loading, the anti-loose spring is in a compressed state, and the arc ends of the two transverse ends are reduced, which can accommodate the arc-shaped strut of the transmission gear, and the arc-shaped strut of the transmission gear is inserted into the two lateral ends, and the anti-loose spring 23 has a pre-step wall Tight force. When the lock-proof spring 23 receives a torque from the adjustment knob stay in the stepped hole, the lock-proof spring 23 can perform a swing motion about its own rotation axis. When the anti-loose spring 23 receives the torsion force from the arcuate strut of the transmission gear in the stepped hole, the horizontal end 231 of the anti-loose spring has a tendency to radially extend the spring, and the pre-tightening force of the anti-loose spring 23 against the stepped hole wall At the same time, the anti-loose spring 23 cannot make a rotary motion about its own axis of rotation. That is, the anti-loose spring 23 can perform a rotary motion about its own rotation axis when subjected to a force from the end of the adjustment knob 21, and the anti-loose spring 23 cannot perform a rotary motion about its own rotation axis when subjected to a force from the housing end.

When the helmet elastic adjustment structure is installed, the lock spring 23 is first loaded into the step surface 221 of the end cover 22 through hole 222, and the transmission gear 24 penetrates into the through hole of the end cover 22 in the axial direction, and the arcuate support 242 of the transmission gear 24 Between the two lateral ends 231 of the anti-loose spring 2, the adjusting knob 21 penetrates at an end surface of the end cover 22 opposite to the anti-loose spring, and the mounting post 213 of the adjusting knob is inserted into the mounting hole 243 of the transmission gear, and finally The transmission gear mounting hole 243 is sleeved on the positioning post 251 of the base 25. A cavity is formed between the end cover 22 and the base 25. The transmission gear 24, the anti-loose spring 23, and the adjustment knob 21 are all inserted into the cavity, and the cavity has a first opening through which the front and rear casings are inserted. 26 and a second opening 27.

When you need to adjust the spacing between the front and rear housings, you can use your hand to directly turn the adjustment knob. During the rotation process, the knob post 211 of the adjustment knob hits the lateral end of the anti-loose spring 231, the anti-loose spring 23 is rotated in the end cover through hole. When the horizontal end 231 of the anti-loose spring hits the arc-shaped post 242 of the transmission gear, the driving gear 24 is also rotated to make the gear teeth of the transmission gear. The 241 meshes with the radial racks on both sides of the front and rear housings to achieve relative movement of the front and rear housings.

In the present creation, the anti-loose spring 23 has a positioning and anti-loosening action, and during the use of the helmet elastic adjustment structure, the front and rear housings are subjected to a relatively distant or relatively close force, which passes through the radial rack and the upper body. The rack gear is transmitted to the transmission gear, and the translational force is converted into the rotating torque. The arcuate strut of the transmission gear transmits the force to the transverse end of the anti-loose spring that is in contact with the anti-loose spring. The anti-loose spring has a pre-tightening force and the transverse end is stressed. The deformation preventing spring is pressed against the inner wall of the through hole of the end cover and cannot rotate around the rotation axis of the end cover, so that the whole mechanism is stressed but does not move, so the elastic adjusting mechanism has positioning and anti-loose. effect.

In summary, the elastic adjustment structure of the original helmet is improved, and the various shortcomings of the conventional structure are effectively improved, and the main technical means of the creation are not found in any related publications, and the application requirements of the new patent are met. To file an application, the Department of Health is requested to grant the patent right.

11. . . Rear housing

12. . . Front housing

twenty one. . . Adjustment knob

twenty two. . . End cap

twenty three. . . Anti-loose spring

twenty four. . . Transmission gear

25. . . Base

26. . . First opening

27. . . Second opening

121. . . Radial rack

122. . . rack

123. . . Adjustment slot

211. . . pillar

212. . . Buckle

213. . . Mounting column

221. . . Step surface

222. . . Through hole

231. . . Horizontal end

241. . . Gear teeth

242. . . Curved pillar

243. . . Mounting holes

251. . . Positioning column

The first figure is a schematic exploded view of the present creation.

The second figure is a schematic exploded view of the left side of the creation.

The third picture is a schematic diagram of the elastic adjustment of the present creation.

The fourth picture is a cross-sectional view of the third picture of the creation along the A-A direction. .

The fifth figure is a three-dimensional schematic view of the front housing of the present invention.

The sixth figure is a three-dimensional diagram of the creation adjustment knob.

The seventh picture is a three-dimensional diagram of the end cap of the present invention.

The eighth figure is a three-dimensional diagram of the creation of the anti-loose spring.

The ninth figure is a three-dimensional schematic diagram of the present transmission gear.

The tenth figure is a three-dimensional diagram of the back view of the ninth figure of the present creation.

The eleventh figure is a three-dimensional diagram of the creation base.

11. . . Rear housing

12. . . Front housing

twenty one. . . Adjustment knob

twenty two. . . End cap

twenty three. . . Anti-loose spring

twenty four. . . Transmission gear

25. . . Base

121. . . Radial rack

241. . . Gear teeth

Claims (6)

The invention relates to a helmet elastic adjustment structure improvement, comprising a front casing and a rear casing, wherein: both sides of the front casing and the rear casing are connected by a base, and a transmission gear is arranged in the base, and the transmission gear passes through the defense The loose spring is connected to the end cover; the end cover is provided with an adjustment knob and the end cover, the anti-loose spring, the transmission gear and the base are formed as a combination body, and the front casing and the rear casing are two The side joints each have a radial rack that cooperates with the drive gear. The improvement of the helmet elastic adjusting structure according to the first aspect of the invention is characterized in that: the base has a positioning post, and the transmission gear has a mounting hole penetrating along a rotation axis thereof, and the positioning post of the base penetrates a mounting hole of the transmission gear; one side of the transmission gear has gear teeth, and the other side of the transmission gear has two arc-shaped pillars, and the gear teeth of the transmission gear mesh with the radial rack; the anti-loose The spring has two transverse ends. The improvement of the helmet elastic adjusting structure according to claim 1 or 2, wherein the end cover has a through hole having a stepped surface on the circumference of the through hole, and the loosening spring respectively abuts The arcuate strut of the stepped surface and the transmission gear, the arc of the arcuate strut is just smaller than the arc of the transverse end of the anti-loose spring, the adjusting knob has a mounting post, and the mounting post of the adjusting knob penetrates into the mounting hole of the transmission gear in. The improvement of the helmet elastic adjusting structure according to the third aspect of the invention is characterized in that: the end of the mounting post of the adjusting knob has a buckle for preventing the protrusion, and the adjusting knob is fixed by the buckle, and the adjusting knob is adjusted. Still rotating about its own axis of rotation; in the adjustment knob, and on both sides of its mounting post are equipped with knob posts, through which the rotational torque from the adjustment knob is transmitted to the transverse end of the anti-loose spring, The transverse end transmits the force to the transmission gear. The improvement of the helmet elastic adjusting structure according to the first or the second aspect of the invention is characterized in that: the adjusting knob, the end cover and the anti-proof are also arranged between the rear casing and the upper part of the front casing. a combination of a loose spring, a transmission gear and a base; an upper rack coupled to the transmission gear at an upper portion of the front housing and at an upper portion of the rear housing, the rear housing The upper part itself is used as an end cover and a base, and the adjustment knob, the anti-loose spring, and the transmission gear are separately assembled in sequence. The improvement of the helmet elastic adjusting structure according to the fifth aspect of the invention is characterized in that: both the rear end and the front side of the front casing are provided with adjusting grooves, radial racks and upper racks. Formed on the radially extending groove wall of the adjusting groove; between the end cover and the base, there are first openings and second openings for the corresponding front and rear casings respectively penetrating from the sides thereof.