Hearing screening instrument earmuff fixing device

Abstract

The utility model relates to the technical field of hearing screening, in particular to a hearing screening instrument earmuff fixing device which comprises a gooseneck pipe and earmuff clamps, the two earmuff clamps are arranged at the two ends of the gooseneck pipe respectively, each earmuff clamp comprises a threaded sleeve, a fixing ring and a horn-shaped clamping piece, the fixing ring is connected with one end of the gooseneck pipe, the horn-shaped clamping piece is connected with the fixing ring, and the threaded sleeve is connected with the threaded sleeve. The threaded sleeve sleeves the outer side of the narrow end of the horn-shaped clamping piece and is in threaded connection with the outer wall of the horn-shaped clamping piece, the horn-shaped clamping piece can be adjusted to be tightened or opened by rotating the threaded sleeve, and the earmuff is installed, fixed or detached. By utilizing the characteristic that the gooseneck pipe can be bent at will and can determine the direction, a clinical nurse holds the earmuffs with two hands respectively to be directly attached to the two ears of a newborn so that rapid positioning can be completed, the gooseneck pipe can keep the shape and provide supporting force in a certain direction after being bent, the clamping function is achieved, the clamping force of the earmuffs is easy to control, and the working efficiency is improved. And the hearing detection efficiency can be obviously improved without complex matching and adjusting operations.

Description

Technical Field

[0001] The utility model belongs to the technical field of hearing screening, and particularly relates to an earmuff fixing device for a hearing screening instrument. Background Art

[0002] Hearing screening is an objective, rapid and non-invasive examination conducted by electrophysiological tests such as otoacoustic emissions, automatic auditory brainstem response and acoustic impedance in newborns who are in natural sleep or quiet state after birth. Universal screening should be conducted in places where conditions permit, and in places where conditions are not met, at least high-risk newborn screening for hearing impairment should be conducted according to local conditions.

[0003] At present, otoacoustic emissions and automated auditory brainstem responses are usually used for neonatal hearing tests. Among them, the automated auditory brainstem response test requires the earmuffs to cover the entire auricle of the newborn. The fit between the earmuffs and the skin directly affects the test results. The edge of the earmuffs is provided with self-adhesive glue, so that the edge of the earmuffs fits tightly with the skin of the newborn. After the hearing screening, tearing off the self-adhesive glue will cause obvious pain to the newborn, and the self-adhesive glue will affect the disinfection of the earmuffs. Under normal circumstances, clinical nurses responsible for hearing tests usually use small towels, bath towels, hairbands, etc., folded and placed outside the earmuffs to use external force to make the earmuffs fit the skin.

[0004] The Chinese utility model patent with the authorization announcement number CN218635993U discloses an earmuff-type hearing screening instrument, wherein an arc frame is arranged on one side of the hearing screening instrument body, and sliding frames are slidably connected to the two ends of the arc frame, and the two ends of the sliding frame are rotatably connected to the cover shell, and the detection probe is slidably connected to the inside of the cover shell, and the side of the cover shell opposite to each other is rotatably connected to an adjustment ring threadedly connected to the detection probe to adjust the length of the detection probe extending out of the cover shell, and a soft contact cover is arranged at one end of the cover shell away from the adjustment ring, and the contact cover is provided with a hole for the detection probe to pass through, and a plurality of hard mounting plates are arranged in a circular array on the inner side of the contact cover, and the contact cover is plugged into the cover shell through the mounting plate, which is convenient for the disassembly, assembly and fixing of the contact cover, and is convenient for cleaning and disinfection of the contact cover. However, when using, it is necessary to adjust the coordination between the arc rod, the elastic band and the sliding frame according to the size of the newborn's head, which is complicated to operate, and the clamping force of the earmuff cannot be effectively controlled during the adjustment process, which is easy to cause discomfort to the newborn and affect the efficiency and effect of hearing detection. Utility Model Content

[0005] The purpose of the utility model is to provide an earmuff fixing device for a hearing screening instrument. The clamping structure of the fixing device is simple, and no complicated matching and adjustment operations are required. The clamping force of the earmuff can be effectively controlled to improve the hearing detection efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides an earmuff fixing device for a hearing screening instrument, comprising a gooseneck tube and an earmuff clip, wherein the two earmuff clips are respectively arranged at the two ends of the gooseneck tube, and the earmuff clip comprises a threaded sleeve, a fixing ring and a trumpet-shaped clamping piece, wherein the fixing ring is connected to one end of the gooseneck tube, the narrow end of the trumpet-shaped clamping piece is connected to the outer ring periphery of the fixing ring, the threaded sleeve is sleeved on the outside of the narrow end of the trumpet-shaped clamping piece and is threadedly connected to the outer wall of the trumpet-shaped clamping piece, and when the threaded sleeve rotates toward the wide end of the trumpet-shaped clamping piece, the wide end of the trumpet-shaped clamping piece is gradually tightened and elastically connected to the earmuff.

[0007] Preferably, in the above technical solution, the trumpet-shaped clamping member includes a threaded tube and three clamping claws, the lower end of the threaded tube is connected to the outer ring circumference of the fixing ring, the tube wall of the threaded tube is provided with three notches extending from the middle to the upper end, the threaded tube gradually opens into a trumpet shape from the middle upwards, the upper end of the threaded tube is respectively connected to one of the clamping claws, and the threaded tube is threadedly connected to the threaded sleeve.

[0008] Preferably, in the above technical solution, the three notches are arranged at equal intervals along the circumference of the upper end of the threaded tube.

[0009] Preferably, in the above technical solution, the height of the threaded sleeve is smaller than the height of the threaded tube.

[0010] Preferably, in the above technical solution, the trumpet-shaped clamping member further comprises an arc-shaped plate, which is arranged at the clamping end of the clamping jaw, and the arc-shaped plate is bent toward the central axis direction of the threaded tube.

[0011] Preferably, in the above technical solution, the gooseneck tube includes a tube body, a limit block and a soft suction cup, the two ends of the tube body are respectively rotatably connected to the bottom of one of the limit blocks, the top of the limit block is connected to the bottom of the soft suction cup, the fixing ring is sleeved on the tube body, and the limit block is used to prevent the fixing ring from escaping from the two ends of the tube body.

[0012] Preferably, in the above technical solution, the limit block is a cylinder, and the bottom diameter of the limit block is larger than the inner diameter of the fixing ring and smaller than the outer diameter of the fixing ring.

[0013] Preferably, in the above technical solution, the top opening diameter of the soft suction cup is smaller than the outer diameter of the fixing ring.

[0014] Preferably, in the above technical solution, the outer wall of the threaded sleeve is provided with knurling.

[0015] Compared with the existing technology, the utility model has the following beneficial effects:

[0016] 1. The utility model includes a gooseneck tube and an earmuff clip. Two earmuff clips are respectively arranged at the two ends of the gooseneck tube. The earmuff clip includes a threaded sleeve, a fixing ring and a trumpet-shaped clamp. The fixing ring is connected to one end of the gooseneck tube. The narrow end of the trumpet-shaped clamp is connected to the outer ring periphery of the fixing ring. The threaded sleeve is sleeved on the outer side of the narrow end of the trumpet-shaped clamp and is threadedly connected to the outer wall of the trumpet-shaped clamp. The trumpet-shaped clamp can be adjusted to tighten or open by rotating the threaded sleeve, so as to achieve the installation, fixing or removal of the earmuff. The utility model utilizes the characteristics of the gooseneck tube that can be bent arbitrarily and determine the direction. Clinical nurses can complete rapid positioning by holding an earmuff in both hands and directly fitting it to the ears of the newborn. After bending, the gooseneck tube can maintain its shape and provide a supporting force in a certain direction, which has a clamping effect. In addition, the clamping force of the earmuff is simple to control, and does not require complicated coordination and adjustment operations, which can significantly improve the efficiency of hearing detection.

[0017] 2. The utility model sets a gooseneck tube body and a limit block at both ends thereof for rotational connection, and sets a gooseneck tube and an earmuff clip for rotational connection, thereby realizing the rotational adjustment function of the earmuff. By rotating the earmuff clip, the detection head of the earmuff can be adjusted to a suitable position; when the contour of the earmuff sealing ring is an ellipse, by rotating the earmuff clip, the earmuff sealing ring is adapted to the ear shape of the newborn, which can improve the sealing performance of the earmuff and improve the accuracy of hearing detection.

[0018] 3. The utility model provides an elastic soft suction cup at the end of the gooseneck tube, and by applying external force to both ends of the tube body to stretch or squeeze the soft suction cup, the clamping force of the earmuff on the ear of the newborn can be further fine-tuned, thereby realizing the function of fine-tuning the clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the installed state of the earmuff fixing device of the hearing screening instrument of the utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the earmuff fixing device of the hearing screening instrument in a disassembled state.

[0021] Figure 3 The utility model is a schematic diagram of the structure of the earmuff clip.

[0022] Figure 4 The utility model is a schematic diagram of the installation of the earmuff clip and the earmuff.

[0023] Figure 5 It is a structural schematic diagram of the gooseneck pipe of the utility model.

[0024] Among them, 1-gooseneck tube, 11-tube body, 12-limiting block, 13-soft suction cup, 2-earmuff clip, 21-threaded sleeve, 211-knurling, 22-fixing ring, 23-trumpet-shaped clamping piece, 231-threaded tube, 232-clamping claw, 233-slot, 234-arc plate, 3-earmuff, 31-earmuff body, 32-earmuff sealing ring, 33-detection head fixing part, 4-hearing screening instrument. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "thick", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0029] The gooseneck tube is a special structure, named because of its shape like a goose neck. It is a metal shaped hose that can be bent arbitrarily and determine the direction. It has excellent mechanical properties and wear resistance. After bending, it can maintain its shape and provide support in a certain direction. It is often used in desk lamps and medical equipment.

[0030] like Figure 1 As shown, this embodiment discloses a hearing screening instrument earmuff fixing device, comprising a gooseneck tube 1 and an earmuff clip 2, wherein two earmuff clips 2 are respectively arranged at both ends of the gooseneck tube 1, and the earmuff clips 2 can clamp and fix the earmuff 3, and the detection head of the hearing screening instrument 4 penetrates into the inside from the side of the earmuff 3. When in use, the clinical nurse only needs to wrap the gooseneck tube 1 around the outside of the newborn's head without touching the head, and then hold an earmuff 3 in both hands and directly fit it on the newborn's ears.

[0031] Continue to refer Figure 2 , Figure 3 The earmuff clip 2 includes a threaded sleeve 21, a fixing ring 22 and a trumpet-shaped clamping piece 23. The fixing ring 22 is connected to one end of the gooseneck tube 1. The narrow end of the trumpet-shaped clamping piece 23 is connected to the outer ring periphery of the fixing ring 23. The threaded sleeve 21 is sleeved on the outer side of the narrow end of the trumpet-shaped clamping piece 23 and is threadedly connected to the outer wall of the trumpet-shaped clamping piece 23. When the threaded sleeve 21 rotates toward the wide end of the trumpet-shaped clamping piece 23, the wide end of the trumpet-shaped clamping piece 23 is gradually tightened and elastically connected to the earmuff 3. When the threaded sleeve 21 rotates toward the narrow end of the trumpet-shaped clamping piece 23, the wide end of the trumpet-shaped clamping piece 23 is gradually opened and separated from the earmuff 3.

[0032] Specifically, the trumpet-shaped clamping member 23 includes a threaded tube 231 and three clamping claws 232. The lower end of the threaded tube 231 is connected to the outer ring circumference of the fixing ring 22. The tube wall of the threaded tube 231 is provided with three notches 233 extending from the middle to the upper end. The three notches 233 divide the upper end circumference of the threaded tube 231 into three equal parts. The threaded tube 231 gradually opens from the middle to the upper end into a trumpet shape. The upper end of the threaded tube 231 is connected to a clamping claw 232 respectively. The threaded tube 231 is threadedly connected to the threaded sleeve 21. When the threaded sleeve 21 rotates toward the upper end of the threaded tube 231, the upper end of the threaded tube 231 is gradually tightened and drives the clamping claws 232 to close toward the central axis of the threaded tube. In addition, the outer wall of the threaded sleeve 21 is provided with knurling 211, which can increase the friction force of the outer surface of the threaded sleeve 21, prevent the threaded sleeve 21 from slipping when rotating, and help to finely adjust the clamping tightness of the earmuff 3.

[0033] Continue to refer Figure 3 , Figure 4The height of the threaded sleeve 21 is smaller than that of the threaded tube 231, and it can be completely sleeved on the outside of the threaded tube 231, so as to prevent the threaded sleeve 21 from affecting the bending amplitude of the gooseneck tube 1; the horn-shaped clamping member 23 also includes an arc plate 234, which is arranged at the clamping end of the clamping claw 232, and the arc plate 234 is bent toward the central axis direction of the threaded tube 231. When the threaded tube 231 drives the clamping claw 232 to tighten, the arc plate 234 can hook the periphery of the earmuff body 31.

[0034] It can be understood that the earmuff 3 is generally made of silicone or rubber, and mainly includes an earmuff body 31, an earmuff sealing ring 32 and a detection head fixing part 33. The arc plate 234 is made of anti-slip and wear-resistant materials such as rubber, polyurethane, TPR, TPU, etc., which can prevent the earmuff body 31 from slipping and avoid damage to the joint between the earmuff body 31 and the earmuff sealing ring 32 during disassembly and assembly.

[0035] Continue to refer Figure 5 The gooseneck tube 1 comprises a tube body 11, a stopper block 12 and a soft suction cup 13. The two ends of the tube body 11 are respectively connected to the bottom of a stopper block 12 in rotation, the top of the stopper block 12 is connected to the bottom of the soft suction cup 13, and the fixing ring 22 is sleeved on the tube body 11. Specifically, the stopper block 12 is a cylinder, the bottom diameter of the stopper block 12 is larger than the inner diameter of the fixing ring 22 and smaller than the outer diameter of the fixing ring 22, the stopper block 12 is used to prevent the fixing ring 22 from escaping from the two ends of the tube body 11, and the tube body 11 is connected to the inner ring of the fixing ring 22 in rotation, and the end of the tube body 11 is connected to the bottom of the stopper block 12 in rotation. The detection head fixing part 33 can be adjusted to a suitable position by rotating the earmuff clip 2. When the contour of the earmuff sealing ring 32 is an ellipse, the earmuff sealing ring 32 is adapted to the ear shape of the newborn by rotating the earmuff clip 2, so that the sealing performance of the earmuff 3 can be improved, and the accuracy of hearing detection can be improved.

[0036] Furthermore, the top opening diameter of the soft suction cup 13 is smaller than the outer diameter of the fixing ring 22, and both the limit block 12 and the soft suction cup 13 can move up and down inside the threaded tube 231. The combined height of the limit block 12 and the soft suction cup 13 is smaller than the height of the threaded tube. When the earmuff clip 2 clamps and fixes the earmuff 3, the limit block 12 is moved downward to abut against the surface of the fixing ring 22, so that the soft suction cup 13 is not in contact with the outer surface of the earmuff body 31.

[0037] It is worth noting that the soft suction cup 13 is made of elastic rubber material. After the earmuff clip 2 clamps and fixes the earmuff 3, the tube body 11 is moved so that the soft suction cup 13 adsorbs the outer surface of the earmuff body 31. Normally, the soft suction cup 13 is adsorbed on the middle position of the outer surface of the earmuff body 31, and then the earmuff 3 is directly attached to the ears of the newborn. The soft suction cup 13 can also be further compressed by applying external force to both ends of the tube body 11, which can further increase the clamping force of the earmuff 3 on the ears of the newborn.

[0038] Thus, the functions of the hearing screening instrument earmuff fixing device in this embodiment are as follows:

[0039] (1) Flexible positioning and orientation function

[0040] By setting up a gooseneck tube and taking advantage of its ability to bend arbitrarily and determine direction, clinical nurses can quickly position the newborn by holding an earmuff in each hand and fitting them directly to the newborn's ears. After bending, the gooseneck tube can maintain its shape and provide support in a certain direction, thus realizing flexible positioning and orientation functions.

[0041] (2) Easy disassembly and assembly function

[0042] The earmuff clip is configured to be trumpet-shaped and a threaded connection structure is used, and the earmuff can be clamped, fixed and disassembled by rotating and adjusting the threaded sleeve, thereby achieving a simple assembly and disassembly function.

[0043] (3) Rotation adjustment function

[0044] By arranging the gooseneck tube body and the limit blocks at both ends thereof to be rotatably connected, and arranging the gooseneck tube and the earmuff clip to be rotatably connected, the rotation adjustment function of the earmuff is realized. By rotating the earmuff clip, the detection head of the earmuff can be adjusted to a suitable position; when the contour of the earmuff sealing ring is an ellipse, by rotating the earmuff clip, the earmuff sealing ring is adapted to the ear shape of the newborn, the sealing performance of the earmuff can be improved, and the accuracy of hearing detection can be improved.

[0045] (4) Clamping force adjustment function

[0046] By arranging an elastic soft suction cup at the end of the gooseneck tube and applying external force to both ends of the tube body to stretch or squeeze the soft suction cup, the clamping force of the earmuffs on the ears of the newborn can be further fine-tuned, thereby realizing the clamping force adjustment function.

[0047] (5) Anti-slip fixing function

[0048] By arranging an arc-shaped plate made of anti-slip and wear-resistant materials such as rubber, polyurethane, TPR, TPU, etc. at the clamping end of the earmuff clip, it can play a role in preventing the earmuff body from slipping and fixing, and avoid damage to the joint between the earmuff body and the earmuff sealing ring during the disassembly and assembly process.

[0049] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A hearing screening instrument earmuff fixing device, characterized in that: It includes a gooseneck tube and an earmuff clip, wherein the two earmuff clips are respectively arranged at the two ends of the gooseneck tube, and the earmuff clip includes a threaded sleeve, a fixing ring and a trumpet-shaped clamping piece, wherein the fixing ring is connected to one end of the gooseneck tube, the narrow end of the trumpet-shaped clamping piece is connected to the outer ring periphery of the fixing ring, the threaded sleeve is sleeved on the outer side of the narrow end of the trumpet-shaped clamping piece and is threadedly connected to the outer wall of the trumpet-shaped clamping piece, and when the threaded sleeve rotates toward the wide end of the trumpet-shaped clamping piece, the wide end of the trumpet-shaped clamping piece is gradually tightened and elastically connected to the earmuff.

2. The hearing screening instrument earmuff fixing device according to claim 1, characterized in that: The trumpet-shaped clamping piece includes a threaded tube and three clamping claws. The lower end of the threaded tube is connected to the outer ring periphery of the fixing ring. The tube wall of the threaded tube is provided with three notches extending from the middle to the upper end. The threaded tube gradually opens into a trumpet shape from the middle upwards. The upper end of the threaded tube is respectively connected to one of the clamping claws, and the threaded tube is threadedly connected to the threaded sleeve.

3. The hearing screening instrument earmuff fixing device according to claim 2, characterized in that: The three notches are arranged at equal intervals along the upper periphery of the threaded tube.

4. The hearing screening instrument earmuff fixing device according to claim 2, characterized in that: The height of the threaded sleeve is smaller than the height of the threaded tube.

5. The hearing screening instrument earmuff fixing device according to claim 2, characterized in that: The trumpet-shaped clamping member further comprises an arc-shaped plate, which is arranged at the clamping end of the clamping claw and is bent toward the central axis direction of the threaded tube.

6. The hearing screening instrument earmuff fixing device according to claim 1, characterized in that: The gooseneck tube includes a tube body, a limit block and a soft suction cup. The two ends of the tube body are respectively rotatably connected to the bottom of one of the limit blocks, the top of the limit block is connected to the bottom of the soft suction cup, the fixing ring is sleeved on the tube body, and the limit block is used to prevent the fixing ring from escaping from the two ends of the tube body.

7. The hearing screening instrument earmuff fixing device according to claim 6, characterized in that: The limiting block is a cylinder, and the bottom diameter of the limiting block is larger than the inner diameter of the fixing ring and smaller than the outer diameter of the fixing ring.

8. The hearing screening instrument earmuff fixing device according to claim 6, characterized in that: The top opening diameter of the soft suction cup is smaller than the outer diameter of the fixing ring.

9. The hearing screening instrument earmuff fixing device according to claim 1, characterized in that: The outer wall of the threaded sleeve is provided with knurling.

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