CN213432602U

CN213432602U - Head clamping device

Info

Publication number: CN213432602U
Application number: CN202021031490.9U
Authority: CN
Inventors: 徐昊
Original assignee: Nanjing Vishee Medical Technology Co Ltd
Current assignee: Nanjing Vishee Medical Technology Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-06-15
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a head clamping device, which comprises a supporting cross rod, a back cushion, a left ear shield, a right ear shield, a left ear shield and a right ear shield adjusting and locking mechanism, wherein the ear shield adjusting and locking mechanism comprises a connecting rod, a reset torsion spring, a ratchet adjusting rod and a compression spring; according to the scheme, earmuffs locked by ratchet mechanisms are additionally arranged on two sides of the head back cushion, and the ratchet mechanisms are reset by torsion springs; compared with the prior art, the scheme has the following advantages: 1. the size of the head can be adjusted according to the size of the head, so that the head is convenient to wear and can be widely popularized; 2. the ratchet wheel and pawl locking mechanism is adopted, so that the structure is simple and the clamping is convenient; 3. the pawl can automatically reset after being opened, and the operation is convenient; 4. the sound insulation earmuffs are adopted, so that the noise generated during the treatment of the instrument can be effectively blocked while the head is clamped; if the music earmuffs are adopted, the relaxing music can be played in the treatment process, and the comfort level in the use process is improved.

Description

Head clamping device

Technical Field

The utility model relates to a head clamping device.

Background

The transcranial magnetic stimulation technology is a magnetic stimulation technology which utilizes a pulsed magnetic field to act on the central nervous system (mainly the brain) to change the membrane potential of cortical nerve cells, so that induced current is generated, and the metabolism and neuroelectric activity in the brain are influenced, thereby causing a series of physiological and biochemical reactions. During the treatment process using the Transcranial Magnetic Stimulation (TMS) instrument, the treatment instrument needs to be aligned to the key part of the head for about 20min, so that a device needs to be designed to fix the head of a human body, and the comfort problem needs to be considered.

In the current TMS instrument, a direct back cushion is basically adopted, the head cannot be well fixed, and meanwhile, the back cushion adopts the design of fixed size and cannot adapt to head types of different sizes. Except TMS appearance, the head fixing device who uses in operation field and the medical science field also generally is direct back cushion, also has some precision surgery fields and medical examination field to use head fixing device, but this kind of head fixing device structure is complicated usually, open and shut trouble, the cost is on the high side, is unsuitable frequently used or uses widely.

Therefore, a head fixing device which is simple in structure, convenient to use, low in cost and comfortable to wear needs to be designed, and can be conveniently matched with a TMS instrument or used in some common operation fields or medical detection fields.

SUMMERY OF THE UTILITY MODEL

The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model provides a head clamping device, simple structure, convenient to use, and can carry out size adjustment according to the head type size, conveniently dress can extensively promote.

The technical scheme is as follows: in order to achieve the above object, the utility model adopts the following technical scheme:

a head clamping device comprises a supporting cross rod, a back cushion, a left ear shield, a right ear shield and a left ear shield and right ear shield adjusting and locking mechanism, wherein the ear shield adjusting and locking mechanism comprises a connecting rod, a reset torsion spring, a ratchet wheel adjusting rod and a compression spring;

the back cushion is arranged on the front side of the middle part of the supporting cross rod, one ends of the two connecting rods are respectively arranged on the left end and the right end of the supporting cross rod through a pin shaft I, the reset torsion spring is sleeved on the pin shaft I, and two feet of the reset torsion spring respectively press the supporting cross rod and the connecting rods outwards; the left earmuff and the right earmuff are respectively arranged at the other ends of the two connecting rods;

the two ratchet wheels are respectively arranged at the left end and the right end of the supporting cross rod; the two adjusting rods are respectively arranged on the outer side surfaces of the two connecting rods through a pin shaft II, a pawl matched with the ratchet wheel is arranged at one end of each adjusting rod, the ratchet wheel and pawl mechanism limits the connecting rods to be capable of executing inward unidirectional rotation, the position, right opposite to the adjusting rods, of the other end of each adjusting rod is connected through a compression spring, and the pawl and the compression spring are located on two sides of the pin shaft II.

If the earmuff is loose, when the earmuff needs to be clamped, the connecting rod (close to one end of the earphone) is directly pressed inwards, so that the connecting rod rotates inwards to a proper position, the pawl moves on the ratchet wheel along with the connecting rod (of course, the compression spring is pressed, and the adjustment can be carried out after the ratchet wheel and the pawl are separated). If the earmuff is felt to be tight, when the earmuff needs to be opened, the compression spring is compressed, so that one end of the adjusting rod, which is provided with the compression spring, tends to approach the connecting rod, the pawl is separated from the ratchet wheel, the connecting rod (close to one end of the earphone) is stirred outwards, the connecting rod rotates inwards to a proper position, the compression spring is loosened, and the ratchet wheel and the pawl are contacted to be locked to an adjusting position. When the state of the ear muffs is finished through tightness adjustment, the compression spring is slightly compressed, the pawl is clamped on the ratchet wheel, and two feet of the reset torsion spring respectively press the support cross rod and the connecting rod outwards to fix the relative positions of the support cross rod and the connecting rod. When the ratchet wheel needs to be reset, the compression spring is pressed, the pawl is separated from the ratchet wheel, the connecting rod resets relative to the supporting cross rod under the action of the reset torsion spring, and the compression spring is loosened.

Specifically, the earmuffs are sound insulation earmuffs or music earmuffs.

Specifically, a bulge or a groove which is matched with fingers to press is arranged on the outer side surface of the connecting rod and corresponds to the center of the earmuff.

Specifically, the connecting rod is V-shaped with an inward turning angle of 90-180 degrees, and a pin shaft hole for mounting a pin shaft II is formed in the outer side surface between one end of the connecting and supporting cross rod and the bending part; the adjusting rod is Z-shaped with an inward bending part and an outward bending part, one end of the adjusting rod, which is bent inward, is provided with a compression spring, one end of the adjusting rod, which is bent outward, is provided with a pawl, and the turning part of the adjusting rod, which is bent outward, is provided with a pin shaft hole for installing a pin shaft II.

Has the advantages that: the head clamping device provided by the utility model is additionally provided with earmuffs locked by the ratchet mechanism on the two sides of the head back cushion, and the ratchet mechanism is reset by the torsional spring; compared with the prior art, the scheme has the following advantages: 1. the size of the head can be adjusted according to the size of the head, so that the head is convenient to wear and can be widely popularized; 2. the ratchet wheel and pawl locking mechanism is adopted, so that the structure is simple and the clamping is convenient; 3. the pawl can automatically reset after being opened, and the operation is convenient; 4. the sound insulation earmuffs are adopted, so that the noise generated during the treatment of the instrument can be effectively blocked while the head is clamped; if the music earmuffs are adopted, the relaxing music can be played in the treatment process, and the comfort level in the use process is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention (the left side is a use state, and the right side is an adjustment state).

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the head clamping device comprises a supporting cross rod, a headrest 1, a left ear muff, a right ear muff 6, a left ear muff and a right ear muff adjusting and locking mechanism, wherein the ear muff adjusting and locking mechanism comprises a connecting rod, a reset torsion spring 2, a ratchet 3 adjusting rod and a compression spring 5.

The back cushion 1 is arranged on the front side of the middle part of the supporting cross rod, one ends of the two connecting rods are respectively arranged on the left end and the right end of the supporting cross rod through a pin shaft I, the reset torsion spring 2 is sleeved on the pin shaft I, and two feet of the reset torsion spring 2 respectively press the supporting cross rod and the connecting rods outwards; the left ear muff 6 and the right ear muff 6 are respectively arranged at the other ends of the two connecting rods.

The two ratchet wheels 3 are respectively arranged at the left end and the right end of the supporting cross rod; two regulation poles are respectively installed on the lateral surfaces of the two connecting rods through a pin shaft II, a pawl 4 matched with the ratchet wheel 3 is installed at one end of each regulation pole, the other end of each regulation pole is connected with the position, right opposite to the regulation pole, of the corresponding regulation pole through a compression spring 5, and the pawl 4 and the compression spring 5 are located on two sides of the pin shaft II.

The connecting rod is V-shaped with an inward turning angle of 90-180 degrees, and a pin shaft hole for mounting a pin shaft II is formed in the outer side surface between one end of the connecting and supporting cross rod and the bending part; the adjusting rod is Z-shaped with an inward bending part and an outward bending part, one end of the adjusting rod, which is bent inward, is provided with a compression spring 5, one end of the adjusting rod, which is bent outward, is provided with a pawl 4, and the turning part of the adjusting rod, which is bent outward, is provided with a pin shaft hole for mounting a pin shaft II. A bulge or a groove which is matched with fingers to press is arranged on the outer side surface of the connecting rod and corresponds to the center of the ear muff 6. The ear muffs 6 are sound insulation ear muffs or music ear muffs.

Human head leans on cushion back cushion 1, and the hand promotes ear muff 6 and presss from both sides tight head, locks ear muff 6 under pawl 4 and ratchet 3's effect, can't loosen, realizes pressing from both sides tight head's purpose. When the ear muffs 6 need to be loosened, the adjusting rod is manually pressed down to be connected with one end of the compression spring 5, the pawl 4 is opened, and the ear muffs 6 are automatically opened under the action of the torsion springs 2.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.

Claims

1. A head clamping device characterized by: the ear muff adjusting and locking device comprises a supporting cross rod, a back cushion (1), a left ear muff, a right ear muff (6) and a left ear muff and right ear muff adjusting and locking mechanism, wherein the ear muff adjusting and locking mechanism comprises a connecting rod, a reset torsion spring (2), a ratchet wheel (3) adjusting rod and a compression spring (5);

the back cushion (1) is arranged on the front side of the middle part of the supporting cross rod, one ends of the two connecting rods are respectively arranged on the left end and the right end of the supporting cross rod through a pin shaft I, the reset torsion spring (2) is sleeved on the pin shaft I, and two feet of the reset torsion spring (2) respectively press the supporting cross rod and the connecting rods outwards; the left earmuff and the right earmuff (6) are respectively arranged at the other ends of the two connecting rods;

the two ratchet wheels (3) are respectively arranged at the left end and the right end of the supporting cross rod; two regulation poles are respectively installed on the outer side surfaces of the two connecting rods through a pin shaft II, a pawl (4) matched with the ratchet wheel (3) is installed at one end of each regulation pole, the other end of each regulation pole is connected with the position, right opposite to the regulation pole, of the corresponding regulation pole through a compression spring (5), and the pawl (4) and the compression spring (5) are located on two sides of the pin shaft II.

2. The head holding device according to claim 1, wherein: the earmuffs (6) are sound insulation earmuffs or music earmuffs.

3. The head holding device according to claim 1, wherein: a bulge or a groove is arranged on the outer side surface of the connecting rod and corresponds to the center of the ear muff (6).

4. The head holding device according to claim 1, wherein: the connecting rod is V-shaped with an inward turning angle of 90-180 degrees, and a pin shaft hole for mounting a pin shaft II is formed in the outer side surface between one end of the connecting and supporting cross rod and the bending part; the adjusting rod is Z-shaped with an inward bending part and an outward bending part, one end of the adjusting rod, which is bent inward, is provided with a compression spring (5), one end of the adjusting rod, which is bent outward, is provided with a pawl (4), and a pin shaft hole for mounting a pin shaft II is arranged at the turning part of the adjusting rod, which is bent outward.