Portable knob type device for adjusting size of head circumference

Abstract

The utility model discloses a portable knob type head circumference adjusting device, relates to the technical field of head circumference adjusting elements, and aims to solve the problems that when air guide equipment is used for hearing detection in various domestic hospitals, hearing language rehabilitation institutions, hearing aid equipment fitting institutions and other places engaged in hearing detection service, the size of the air guide equipment is adult, and the size of the air guide equipment is large. And children or patients with small head circumference cannot be fixed, so that the audiometry effect is influenced. The knob mechanism is installed above the head circumference adjusting part, a fixator is arranged between the knob mechanism and the head circumference adjusting part, the lower end of the fixator is not fixedly connected with the upper portion of the head circumference adjusting part, the upper end of the fixator is rotationally connected with the knob mechanism, a rotating head is arranged above the knob mechanism, and the rotating head is connected with the knob mechanism. A reserved hole is formed in one side of the outer side of the rotating head, the reserved hole and the rotating head are integrally formed, and two access ports are formed in the outer side of the upper end face of the rotary knob mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of head circumference adjusting elements, in particular to a portable knob-type device for adjusting the size of head circumference. Background Art

[0002] For example, the announcement number is CN218978127U, and the name of the Chinese authorized patent is (A helmet with external accessory function that can adjust the head circumference size), which includes: a helmet shell, a buffer layer and a suspension, the buffer layer is fixed to the inside of the helmet shell, the suspension is fixedly connected to the inner side of the buffer layer, the outer periphery of the suspension is provided with an inner padding fabric, one end of the suspension is fixedly connected with an adjuster, the outer periphery of the helmet shell is provided with an external accessory, the external accessory includes a night vision device bracket base and a side bridge, the adjuster includes a knob assembly and a fishing line, the fishing line passes through the inner padding fabric and surrounds the buffer layer, it can pull the fishing line by rotating the adjuster, so that the suspension can be contracted according to demand, so as to achieve the adjustment of the head circumference size, improve its ease of use, and at the same time, the external accessories can be used to achieve the installation of external devices, thereby improving the overall functionality and practicality of the device.

[0003] However, the air conduction devices used in hearing tests in major domestic hospitals, hearing and speech rehabilitation institutions, hearing aid fitting institutions, and other places that provide hearing testing services are all adult-sized. For children or patients with small head circumference, they cannot be fixed, thus affecting the audiometric results. Therefore, this does not meet existing needs. We have proposed a portable knob-type device for adjusting head circumference size. Utility Model Content

[0004] The utility model aims to provide a portable knob-type device for adjusting the size of the head circumference, so as to solve the existing problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable knob-type device for adjusting the size of a head circumference, comprising: a head circumference adjustment part, a storage mechanism is provided on one side of the outer wall of the head circumference adjustment part, a first connecting rope is provided on one side of the lower end surface of the head circumference adjustment part, and one end of the first connecting rope passes through and extends to the interior of the head circumference adjustment part;

[0006] Also includes:

[0007] A knob mechanism is installed above the head circumference adjustment part, a fixture is arranged between the knob mechanism and the head circumference adjustment part, the lower end of the fixture is not fixedly connected to the upper part of the head circumference adjustment part, the upper end of the fixture is rotatably connected to the knob mechanism, a rotating head is arranged above the knob mechanism, a reserved hole is arranged on one side of the outer side of the rotating head, and the reserved hole is formed integrally with the rotating head, and an access port is arranged on the outer side of the upper end surface of the knob mechanism, and two access ports are arranged;

[0008] An inner cavity is installed inside the head circumference adjustment part. A connecting soft tube is arranged inside the inner cavity. Two connecting soft tubes are arranged. A first inflatable airbag and a second inflatable airbag are respectively arranged on both sides of the inner wall of the head circumference adjustment part. One end of the two connecting soft tubes is connected to the first inflatable airbag and the second inflatable airbag respectively.

[0009] Preferably, the other ends of the two connecting soft tubes are fixed to the ports of the two access ports.

[0010] Preferably, a protective block is provided at one end of the first connecting rope, a second connecting rope is provided at one end of the protective block, a fixing block is provided at one end of the second connecting rope, and a raised handle rod is provided on an outer wall of the fixing block.

[0011] Preferably, a hook is provided at one end of the fixing block, a fixing cavity is provided inside the other side of the lower end surface of the head circumference adjustment part, a fixing rod is provided on the inner wall of the fixing cavity, and the fixing rod is fixedly connected to the head circumference adjustment part.

[0012] Preferably, a rotation adjustment block is provided on one side of the storage mechanism, and one end of the rotation adjustment block passes through and extends to the interior of the storage mechanism, and a storage shaft is provided inside the storage mechanism.

[0013] Preferably, one end of the first connecting rope is fixedly mounted on the outer wall of the storage shaft.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model provides a knob mechanism and a rotating head, a reserved hole and an access port on the knob mechanism, as well as a first inflatable airbag, a second inflatable airbag and a connecting soft tube provided inside the head circumference adjustment part. When the device is in use, an external inflatable device performs an air supply operation on one of the access ports. The access port can be selected according to the size of the user's head circumference, and the first inflatable airbag and the second inflatable airbag provided inside can have protrusions of different circumferences, so that there is a corresponding holding force, and the head circumference adjustment between the user and the head circumference adjustment part is directly facilitated. The head circumference is adjusted by the first inflatable airbag and the second inflatable airbag with internal protrusions, which effectively avoids the problem that the existing major domestic hospitals, hearing and language rehabilitation institutions, hearing aid equipment fitting institutions and other places engaged in hearing testing services use adult-sized air conduction equipment for hearing testing, which cannot be fixed for children or patients with small head circumference, thereby affecting the audiometry effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the head circumference adjustment part of the utility model;

[0018] Figure 3 It is a schematic diagram of the local structure of the knob mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of A of the utility model;

[0020] In the figure: 100, head circumference adjustment part; 101, first connecting rope; 102, protection block; 103, second connecting rope; 104, fixing block; 10401, hook; 105, raised handle rod; 106, inner cavity; 107, first inflatable airbag; 108, second inflatable airbag; 109, connecting soft tube; 110, fixing cavity; 111, fixing rod; 200, knob mechanism; 201, fixer; 202, rotating head; 203, reserved hole; 204, access port; 300, storage mechanism; 301, rotating adjustment block; 302, storage shaft. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example 1

[0023] See also Figure 1-4The utility model provides an embodiment: a portable knob-type device for adjusting the size of the head circumference, comprising: a head circumference adjustment part 100, a storage mechanism 300 is arranged on one side of the outer wall of the head circumference adjustment part 100, a first connecting rope 101 is arranged on one side of the lower end surface of the head circumference adjustment part 100, and one end of the first connecting rope 101 passes through and extends to the interior of the head circumference adjustment part 100;

[0024] Also includes:

[0025] A knob mechanism 200 is installed above the head circumference adjustment part 100, a fixture 201 is provided between the knob mechanism 200 and the head circumference adjustment part 100, the lower end of the fixture 201 is not fixedly connected to the upper part of the head circumference adjustment part 100, the upper end of the fixture 201 is rotatably connected to the knob mechanism 200, a rotating head 202 is provided above the knob mechanism 200, a reserved hole 203 is provided on one side of the outer side of the rotating head 202, and the reserved hole 203 is formed integrally with the rotating head 202, and an access port 204 is provided on the outer side of the upper end surface of the knob mechanism 200, and the access port 204 is provided with two;

[0026] The inner cavity 106 is installed inside the head circumference adjustment part 100. A connecting soft tube 109 is arranged inside the inner cavity 106. Two connecting soft tubes 109 are arranged. A first inflatable airbag 107 and a second inflatable airbag 108 are respectively arranged on both sides of the inner wall of the head circumference adjustment part 100. One end of the two connecting soft tubes 109 is connected to the first inflatable airbag 107 and the second inflatable airbag 108 respectively.

[0027] The external inflation device performs air supply operation on one of the access ports 204. The access port 204 corresponding to the access port 204 can be selected according to the size of the user's head circumference, and the first inflatable airbag 107 and the second inflatable airbag 108 arranged inside can have protrusions of different circumferences, so as to have corresponding holding forces, and directly facilitate the adjustment of the head circumference between the user and the head circumference adjustment part 100, and the head circumference is adjusted by the internal protruding first inflatable airbag 107 and the second inflatable airbag 108.

[0028] Example 2

[0029] See also Figure 1 , Figure 2 and Figure 3The other ends of the two connecting soft tubes 109 are fixed to the ports of the two access ports 204, a protective block 102 is provided at one end of the first connecting rope 101, a second connecting rope 103 is provided at one end of the protective block 102, a fixing block 104 is provided at one end of the second connecting rope 103, a raised handle rod 105 is provided on the outer wall of the fixing block 104, a hook 10401 is provided at one end of the fixing block 104, a fixing cavity 110 is provided inside the other side of the lower end surface of the head circumference adjustment part 100, a fixing rod 111 is provided on the inner wall of the fixing cavity 110, and the fixing rod 111 is fixedly connected to the head circumference adjustment part 100.

[0030] The hook 10401 disposed at one end of the fixing block 104 can effectively fix the hook to the fixing rod 111, thereby connecting the components, and the installation and removal of the hook can be conveniently operated.

[0031] See also Figure 1 and Figure 4 A rotation adjustment block 301 is provided on one side of the storage mechanism 300, and one end of the rotation adjustment block 301 penetrates and extends into the interior of the storage mechanism 300. A storage shaft 302 is provided inside the storage mechanism 300, and one end of the first connecting rope 101 is fixedly installed on the outer wall of the storage shaft 302.

[0032] By setting the rotation adjustment block 301, the rotation adjustment block 301 can effectively rotate the internal storage shaft 302, so that the length of one end of the first connecting rope 101 can be retracted or released.

[0033] Working principle: When the device is in use, the hook 10401 on the fixing block 104 is hung on the fixing rod 111, thereby fixing the head circumference adjustment part 100 to the user's head. After the head circumference adjustment part 100 is fixed, air is supplied to one of the access ports 204 through an external inflation device. The access port 204 can be selected according to the size of the user's head circumference, and the first inflatable airbag 107 and the second inflatable airbag 108 arranged inside can have protrusions of different circumferences, so that there is a corresponding holding force, which facilitates the adjustment of the head circumference between the user and the head circumference adjustment part 100, and the head circumference is adjusted by the internal protruding first inflatable airbag 107 and second inflatable airbag 108.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A portable knob-type device for adjusting the size of a head circumference, comprising a head circumference adjustment part (100), a storage mechanism (300) being arranged on one side of an outer wall of the head circumference adjustment part (100), a first connecting rope (101) being arranged on one side of a lower end surface of the head circumference adjustment part (100), one end of the first connecting rope (101) passing through and extending to the interior of the head circumference adjustment part (100); Features: Also includes: A knob mechanism (200) is installed above the head circumference adjustment part (100); a fixer (201) is provided between the knob mechanism (200) and the head circumference adjustment part (100); the lower end of the fixer (201) is not fixedly connected to the upper part of the head circumference adjustment part (100); the upper end of the fixer (201) is rotatably connected to the knob mechanism (200); a rotating head (202) is provided above the knob mechanism (200); a reserved hole (203) is provided on one side of the outer side of the rotating head (202); the reserved hole (203) and the rotating head (202) are formed in one piece; an access port (204) is provided on the outer side of the upper end surface of the knob mechanism (200); and two access ports (204) are provided; An inner cavity (106) is installed inside the head circumference adjustment part (100), and a connecting soft tube (109) is arranged inside the inner cavity (106). Two connecting soft tubes (109) are arranged, and a first inflatable airbag (107) and a second inflatable airbag (108) are respectively arranged on both sides of the inner wall of the head circumference adjustment part (100), and one end of the two connecting soft tubes (109) are respectively connected to the first inflatable airbag (107) and the second inflatable airbag (108).

2. A portable knob-type device for adjusting head circumference according to claim 1, characterized in that: The other ends of the two connecting soft tubes (109) are fixed to the ports of the two access ports (204).

3. A portable knob-type device for adjusting head circumference according to claim 1, characterized in that: A protection block (102) is provided at one end of the first connection rope (101), a second connection rope (103) is provided at one end of the protection block (102), a fixing block (104) is provided at one end of the second connection rope (103), and a raised handle bar (105) is provided on the outer wall of the fixing block (104).

4. A portable knob-type device for adjusting head circumference according to claim 3, characterized in that: A hook (10401) is provided at one end of the fixing block (104), a fixing cavity (110) is provided inside the other side of the lower end surface of the head circumference adjustment part (100), a fixing rod (111) is provided on the inner wall of the fixing cavity (110), and the fixing rod (111) is fixedly connected to the head circumference adjustment part (100).

5. A portable knob-type device for adjusting head circumference according to claim 1, characterized in that: A rotation adjustment block (301) is provided on one side of the storage mechanism (300), and one end of the rotation adjustment block (301) penetrates and extends into the interior of the storage mechanism (300), and a storage shaft (302) is provided inside the storage mechanism (300).

6. A portable knob-type device for adjusting head circumference according to claim 1, characterized in that: One end of the first connecting rope (101) is fixedly mounted on the outer wall of the storage shaft (302).

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