[go: up one dir, main page]

CN113409650B - Singing and Speaking Vocal Training Clip - Google Patents

Singing and Speaking Vocal Training Clip Download PDF

Info

Publication number
CN113409650B
CN113409650B CN202010179282.1A CN202010179282A CN113409650B CN 113409650 B CN113409650 B CN 113409650B CN 202010179282 A CN202010179282 A CN 202010179282A CN 113409650 B CN113409650 B CN 113409650B
Authority
CN
China
Prior art keywords
pressing block
adjustment
rod
headband
singing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010179282.1A
Other languages
Chinese (zh)
Other versions
CN113409650A (en
Inventor
刘成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qiongtai Normal University
Original Assignee
Qiongtai Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qiongtai Normal University filed Critical Qiongtai Normal University
Priority to CN202010179282.1A priority Critical patent/CN113409650B/en
Publication of CN113409650A publication Critical patent/CN113409650A/en
Application granted granted Critical
Publication of CN113409650B publication Critical patent/CN113409650B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B15/00Teaching music
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B19/00Teaching not covered by other main groups of this subclass
    • G09B19/04Speaking

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Rehabilitation Tools (AREA)

Abstract

本发明提供唱歌与说话发声训练夹,包括头带、连接杆和按压装置,头带的两端均转动连接有连接杆,连接杆的自由端与按压装置转动连接,按压装置包括连接座、第一按压块和第二按压块,连接座与连接杆转动连接,连接座设有第一调节槽,第一按压块设于第一调节槽内,第一按压块通过第一调节杆与连接座螺纹连接,且第一调节杆与第一按压块转动连接,第一按压块设有第二调节槽,第二按压块设于第二调节槽内,第二按压块通过第二调节杆与第一调节杆螺纹连接,且第二调节杆与第二按压块转动连接,第一按压块和第二按压块上均设有压力传感器。本发明可通过调节第一按压块和第二按压块按压使用者的腮部,固定张嘴的大小幅度,保持训练音准,提高训练效果。

The present invention provides a singing and speaking vocalization training clip, comprising a headband, a connecting rod and a pressing device, both ends of the headband are rotatably connected with the connecting rod, the free end of the connecting rod is rotatably connected to the pressing device, the pressing device comprises a connecting seat, a first pressing block and a second pressing block, the connecting seat is rotatably connected to the connecting rod, the connecting seat is provided with a first adjustment groove, the first pressing block is arranged in the first adjustment groove, the first pressing block is threadedly connected to the connecting seat through the first adjustment rod, and the first adjustment rod is rotatably connected to the first pressing block, the first pressing block is provided with a second adjustment groove, the second pressing block is arranged in the second adjustment groove, the second pressing block is threadedly connected to the first adjusting rod through the second adjustment rod, and the second adjustment rod is rotatably connected to the second pressing block, and pressure sensors are provided on the first pressing block and the second pressing block. The present invention can press the cheeks of the user by adjusting the first pressing block and the second pressing block to fix the size of the mouth opening, maintain the training pitch, and improve the training effect.

Description

Singing and speaking sounding training clamp
Technical Field
The invention relates to the technical field of sounding training auxiliary equipment, in particular to a singing and speaking sounding training clamp.
Background
The size range of opening the mouth is very important to singing and speaking, if the amplitude of opening the mouth constantly changes, the tone color of sound is unstable and is not easy to unify, when singing and speaking are trained, the condition that the size range of opening the mouth changes can occur because of longer training time or self reasons, and under the condition that no auxiliary tool is available, correct control of the distance between the upper teeth and the lower teeth is difficult to realize, so that the sound smoothness, the resonance degree and the tone accuracy effect are poor, and the training effect of singing or speaking is reduced.
Disclosure of Invention
Therefore, the invention provides the singing and speaking sounding training clamp, the first pressing block and the second pressing block can be adjusted to press the cheeks of the user, the size amplitude of the mouth opening is fixed, the training level is kept, and the singing and speaking training effect is improved.
The technical scheme of the invention is realized as follows:
The invention provides a singing and speaking sounding training clamp which comprises a head band, a connecting rod and a pressing device, wherein the connecting rod is rotationally connected to two ends of the head band, the free end of the connecting rod is rotationally connected with the pressing device, the pressing device comprises a connecting seat, a first pressing block and a second pressing block, the connecting seat is rotationally connected with the connecting rod, the connecting seat is provided with a first adjusting groove, the first pressing block is arranged in the first adjusting groove, the first pressing block is in threaded connection with the connecting seat through a first adjusting rod, the first adjusting rod is rotationally connected with the first pressing block, the first pressing block is provided with a second adjusting groove, the second pressing block is arranged in the second adjusting groove, the second pressing block is in threaded connection with the first adjusting rod through a second adjusting rod, the second adjusting rod is rotationally connected with the second pressing block, and pressure sensors are arranged on the first pressing block and the second pressing block.
Further, the first adjusting rod is internally provided with a through groove, an internal thread is arranged in the through groove, the second adjusting rod is provided with an external thread, and the external thread and the internal thread are mutually matched.
Further, the free end of the first adjusting rod and the free end of the second adjusting rod are respectively provided with an adjusting cap, and the adjusting caps of the second adjusting rod protrude out of the adjusting caps of the first adjusting rod.
Further, the free end of the headband is further provided with a supporting device, the supporting device comprises a supporting pad, a spring and a telescopic sleeve, the spring is respectively connected with the supporting pad and the headband, the telescopic sleeve is sleeved outside the spring, and the telescopic sleeve is respectively connected with the supporting pad and the headband.
Further, the auxiliary headband comprises an auxiliary headband, and two ends of the auxiliary headband are respectively connected with the connecting rod in a rotating mode.
Further, the headband and the auxiliary headband comprise a fixing section and an adjusting section, the free end of the fixing section is connected with the adjusting section in a sliding mode, and the adjusting section is connected with the connecting rod in a rotating mode.
Further, a flip cover is hinged to the connecting seat, a groove is formed in the flip cover, and the groove corresponds to the first adjusting rod and the second adjusting rod.
Furthermore, the first adjusting rod and the second adjusting rod are provided with graduation gauges.
Further, an observation window is arranged on the flip cover.
Compared with the prior art, the invention has the beneficial effects that:
The singing and speaking training clamp provided by the invention can be used for fixing the distance between the upper teeth and the lower teeth by adjusting the first pressing block and the second pressing block to press the cheeks of a user, keeping the size range of the mouth opening, ensuring the accuracy of speaking of singing and speaking, improving the training effect, realizing the pressing of the cheeks corresponding to the mouths with different sizes according to the size range of the mouth opening of the user by matching the first pressing block and the second pressing block, having higher applicability, being convenient for finding the most suitable pressing force by adjusting the first pressing block and the second pressing block step by step in a threaded manner, avoiding the discomfort of the user caused by jumping pressing, and being convenient for adjusting the pressing device to the position suitable for pressing the cheeks by rotating the connecting rod and the pressing device, and improving the pressing effect of the cheeks.
Drawings
FIG. 1 is a schematic elevational view of a singing and speaking voice training clip of the present invention;
FIG. 2 is a schematic side view of a singing and speaking voice training clip of the present invention;
FIG. 3 is a schematic perspective view of the connection of the pressing device and the connecting rod;
FIG. 4 is a schematic cross-sectional view of a pressing device of the singing and speaking voice training clip of the present invention;
FIG. 5 is an enlarged sectional view of part A of FIG. 1;
In the figure, 1 bandeau, 2 connecting rods, 3 pressing devices, 31 connecting seats, 32 first pressing blocks, 33 second pressing blocks, 34 first adjusting grooves, 35 first adjusting rods, 36 second adjusting grooves, 37 second adjusting rods, 38 adjusting caps, 39 through grooves, 4 gradiometers, 5 supporting devices, 51 supporting pads, 52 springs, 53 telescopic sleeves, 6 auxiliary bandeau, 7 flip covers, 8 grooves, 9 fixing sections and 10 adjusting sections.
Detailed Description
For a better understanding of the technical content of the present invention, specific examples are provided below and the present invention is further described with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 5, the singing and speaking voice training clamp provided by the invention comprises a head band 1, a connecting rod 2 and a pressing device 3, wherein the connecting rod 2 is rotatably connected to two ends of the head band 1, the free end of the connecting rod 2 is rotatably connected with the pressing device 3, and when singing or speaking training is carried out, the pressing device 3 is convenient to adjust according to the specific condition of a user, so that the pressing device 3 rotates to the corresponding position of the face, the face corresponding to a tooth-gap is pressed, the opened mouth shape is fixed, the voice level is kept, and the singing and speaking training effect is improved; the pressing device 3 comprises a connecting seat 31, a first pressing block 32 and a second pressing block 33, the connecting seat 31 is rotationally connected with the connecting rod 2, the connecting seat 31 is provided with a first adjusting groove 34, the first pressing block 32 is arranged in the first adjusting groove 34, the first pressing block 32 is in threaded connection with the connecting seat 31 through a first adjusting rod 35, the first adjusting rod 35 is rotationally connected with the first pressing block 32, the first pressing block 32 can be driven to move up and down by adjusting the first adjusting rod 35 up and down, when a user trains singing or speaking, the user presses the corresponding cheek of the dental office by matching with the second pressing block 33, the distance of the dental office is kept, the mouth is opened and fixed to a certain extent, the training effect is improved, the first pressing block 32 can be gradually adjusted by adjusting the pressing force of the first pressing block 32 through threads, the first pressing block 32 is prevented from being uncomfortable to the user due to jumping pressing, the first pressing block 32 is matched with the second pressing block 33, when the user trains or speaks, the distance between the first pressing block 32 and the second pressing block 33 is matched with the dental office is changed, the pressing surface of the second pressing block 33 is parallel to the pressing surface of the first pressing block 32, so as to improve the pressing effect, wherein the first pressing block 32 and the second pressing block 33 can be arranged in a shape of a gap between an upper jaw and a lower jaw when the mouth is opened, the first pressing block 32 is provided with a second adjusting groove 36, the second pressing block 33 is arranged in the second adjusting groove 36, the second pressing block 33 is in threaded connection with the first adjusting rod 35 through a second adjusting rod 37, the second adjusting rod 37 is in rotary connection with the second pressing block 33, when the mouth opening amplitude of singing and speaking training is smaller, only the second pressing block 33 needs to be adjusted through the second adjusting rod 37 to press the cheek, the first pressing block 32 and the second pressing block 33 are both provided with pressure sensors (not marked), and the pressure sensors can sense the pressing force of the first pressing block 32 and the second pressing block 33 on the face so as to avoid the excessive pressing force, and the pressure sensors can be selected as S WNSX.
The training device is sleeved on the head through the head band 1, the head band 1 is adjusted according to the size of the head and the face of a user, the head band 1 is convenient to wear, the connecting rod 2 and the pressing device 3 are rotated, the pressing device 3 is positioned at a proper position of the face, the cheek is pressed conveniently during singing or speaking training, the second pressing block 33 is adjusted to press the cheek according to the width of the mouth of the user through the second adjusting rod 37, the opening distance between the upper teeth and the lower teeth is fixed, when the width of the mouth of the user is large, the first adjusting rod 35 is adjusted when the second pressing block 33 alone cannot meet the pressing condition, the first pressing block 32 is made to approach to one side of the second pressing block 33 until the pressing surface of the first pressing block 32 is parallel to the pressing surface of the second pressing block 33, the cheek is pressed jointly by the first pressing block 32 and the second pressing block 33, the opening distance between the upper teeth and the lower teeth is fixed, the training accuracy is kept, and the training effect is improved.
Specifically, the first adjusting rod 35 is provided with a through groove 39, an internal thread is provided in the through groove 39, the second adjusting rod 37 is provided with an external thread, and the external thread and the internal thread are mutually matched. The through groove 39 can enable the second adjusting rod 37 to penetrate through the first adjusting rod 35, the second pressing block 33 is convenient to adjust by the second adjusting rod 37 to press the cheek, gradual pressing can be achieved through threaded adjustment, and excessive pressing force is avoided.
Specifically, the free end of the first adjusting rod 35 and the free end of the second adjusting rod 37 are both provided with an adjusting cap 38, and the adjusting cap 38 of the second adjusting rod 37 protrudes from the adjusting cap 38 of the first adjusting rod 35. The first adjusting rod 35 and the second adjusting rod 37 can be adjusted through the adjusting cap 38, and the adjusting cap 38 is simple and convenient, and the anti-skid patterns are arranged on the adjusting cap 38.
Example 2
Referring to fig. 1 to 5, the difference between the present embodiment and embodiment 1 is that the free end of the headband 1 is further provided with a supporting device 5, the supporting device 5 includes a supporting pad 51, a spring 52 and a telescopic sleeve 53, the spring 52 is respectively connected with the supporting pad 51 and the headband 1, the telescopic sleeve 53 is sleeved outside the spring 52, and the telescopic sleeve 53 is respectively connected with the supporting pad 51 and the headband 1. The contact area between the invention and the head of the user is increased, the stability of the use is enhanced, when the mouth is large, the cheekbones of the face of part of the user are higher, and the supporting device 5 can avoid the extrusion of the connecting rod 2 to other parts of the face to a certain extent.
Specifically, the auxiliary headband 6 is further included, and two ends of the auxiliary headband 6 are respectively and rotatably connected with the connecting rod 2. The auxiliary headband 6 can play an auxiliary fixing role, and can avoid cost displacement caused by head shaking.
Specifically, the headband 1 and the auxiliary headband 6 each comprise a fixing section 9 and an adjusting section 10, the free ends of the fixing sections 9 are slidably connected with the adjusting sections 10, and the adjusting sections 10 are rotatably connected with the connecting rods 2. The fixing section 9 and the adjusting section 10 can adjust the size of the headband 1 according to the use condition, so that the headband is convenient to use.
Example 3
Referring to fig. 1 to 5, this embodiment is different from embodiment 1 in that a flip cover 7 is hinged on the connection base 31, a groove 8 is provided in the flip cover 7, and the groove 8 corresponds to the first adjusting lever 35 and the second adjusting lever 37. The flip 7 can play a role in protecting the first adjusting rod 35 and the second adjusting rod 37, avoiding misoperation of the first adjusting rod 35 and the second adjusting rod 37, and meanwhile, dust accumulation can be avoided, wherein a protection pad (not marked) is arranged in the groove 8.
Specifically, the first adjusting rod 35 and the second adjusting rod 37 are both provided with a scale 4. The adjustment conditions of the first pressing block 32 and the second pressing block 33 can be checked through the dial gauges 4 on the first adjusting lever 35 and the second adjusting lever 37.
Specifically, the flip cover 7 is provided with an observation window (not shown). It is convenient to observe the dial 4 on the first adjusting lever 35 and the second adjusting lever 37.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (7)

1.唱歌与说话发声训练夹,其特征在于:包括头带、辅助头带、连接杆和按压装置,所述头带的两端均转动连接有所述连接杆,所述连接杆的自由端与所述按压装置转动连接,所述按压装置包括连接座、第一按压块和第二按压块,所述连接座与所述连接杆转动连接,所述连接座设有第一调节槽,所述第一按压块设于所述第一调节槽内,所述第一按压块通过第一调节杆与所述连接座螺纹连接,且所述第一调节杆与所述第一按压块转动连接,所述第一按压块设有第二调节槽,所述第二按压块设于所述第二调节槽内,所述第二按压块通过第二调节杆与所述第一调节杆螺纹连接,且所述第二调节杆与所述第二按压块转动连接,所述第一按压块和所述第二按压块上均设有压力传感器,所述第一调节杆的自由端和所述第二调节杆的自由端均设有调节冒,所述第二调节杆的所述调节冒突出于所述第一调节杆的调节冒,所述辅助头带的两端分别与所述连接杆转动连接。1. A singing and speaking voice training clip, characterized in that it comprises a headband, an auxiliary headband, a connecting rod and a pressing device, both ends of the headband are rotatably connected with the connecting rod, the free end of the connecting rod is rotatably connected to the pressing device, the pressing device comprises a connecting seat, a first pressing block and a second pressing block, the connecting seat is rotatably connected to the connecting rod, the connecting seat is provided with a first adjustment groove, the first pressing block is arranged in the first adjustment groove, the first pressing block is threadedly connected to the connecting seat through the first adjustment rod, and the first adjustment rod is rotatably connected to the first pressing block, the first pressing block is provided with a second adjustment groove, the second pressing block is arranged in the second adjustment groove, the second pressing block is threadedly connected to the first adjustment rod through the second adjustment rod, and the second adjustment rod is rotatably connected to the second pressing block, the first pressing block and the second pressing block are both provided with pressure sensors, the free end of the first adjustment rod and the free end of the second adjustment rod are both provided with adjustment caps, the adjustment caps of the second adjustment rods protrude from the adjustment caps of the first adjustment rods, and the two ends of the auxiliary headband are rotatably connected to the connecting rods respectively. 2.如权利要求1所述的唱歌与说话发声训练夹,其特征在于:所述第一调节杆的内部设有通槽,所述通槽内设有内螺纹,所述第二调节杆设有外螺纹,所述外螺纹与所述内螺纹相互配合。2. The singing and speaking voice training clip as described in claim 1 is characterized in that: a through groove is provided inside the first adjusting rod, an internal thread is provided inside the through groove, and an external thread is provided inside the second adjusting rod, and the external thread cooperates with the internal thread. 3.如权利要求1所述的唱歌与说话发声训练夹,其特征在于:所述头带的自由端还设有支撑装置,所述支撑装置包括支撑垫、弹簧和伸缩套,所述弹簧分别与所述支撑垫和所述头带连接,所述伸缩套套接于所述弹簧外,且所述伸缩套分别与所述支撑垫和所述头带连接。3. The singing and speaking voice training clip as described in claim 1 is characterized in that: the free end of the headband is also provided with a supporting device, the supporting device includes a supporting pad, a spring and a telescopic sleeve, the spring is respectively connected to the supporting pad and the headband, the telescopic sleeve is sleeved on the outside of the spring, and the telescopic sleeve is respectively connected to the supporting pad and the headband. 4.如权利要求1所述的唱歌与说话发声训练夹,其特征在于:所述头带和所述辅助头带均包括固定段和调节段,所述固定段的自由端滑动连接有所述调节段,所述调节段与所述连接杆转动连接。4. The singing and speaking voice training clip as described in claim 1 is characterized in that: the headband and the auxiliary headband both include a fixed section and an adjustment section, the free end of the fixed section is slidably connected to the adjustment section, and the adjustment section is rotatably connected to the connecting rod. 5.如权利要求1所述的唱歌与说话发声训练夹,其特征在于:所述连接座上铰接有翻盖,所述翻盖的内部设有凹槽,所述凹槽对应于所述第一调节杆和第二调节杆。5. The singing and speaking voice training clip as described in claim 1 is characterized in that a flap is hinged on the connecting seat, and a groove is provided inside the flap, and the groove corresponds to the first adjusting rod and the second adjusting rod. 6.如权利要求5所述的唱歌与说话发声训练夹,其特征在于:所述翻盖上设有观察窗。6. The singing and speaking voice training clip as described in claim 5 is characterized in that an observation window is provided on the flip cover. 7.如权利要求5所述的唱歌与说话发声训练夹,其特征在于:所述第一调节杆和所述第二调节杆上均设有刻度表。7. The singing and speaking voice training clip as described in claim 5 is characterized in that: the first adjusting rod and the second adjusting rod are both provided with scales.
CN202010179282.1A 2020-03-16 2020-03-16 Singing and Speaking Vocal Training Clip Active CN113409650B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010179282.1A CN113409650B (en) 2020-03-16 2020-03-16 Singing and Speaking Vocal Training Clip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010179282.1A CN113409650B (en) 2020-03-16 2020-03-16 Singing and Speaking Vocal Training Clip

Publications (2)

Publication Number Publication Date
CN113409650A CN113409650A (en) 2021-09-17
CN113409650B true CN113409650B (en) 2025-02-11

Family

ID=77675723

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010179282.1A Active CN113409650B (en) 2020-03-16 2020-03-16 Singing and Speaking Vocal Training Clip

Country Status (1)

Country Link
CN (1) CN113409650B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211454921U (en) * 2020-03-16 2020-09-08 琼台师范学院 Singing and speaking sounding training clip

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB341682A (en) * 1929-12-21 1931-01-22 John Philip Colman Improvements in or relating to gags for holding the human mouth open
CN107496039A (en) * 2017-09-25 2017-12-22 成都菲斯普科技有限公司 A kind of department of stomatology extraction servicing unit
CN109512371A (en) * 2018-11-06 2019-03-26 长沙康乃馨医疗器械科技有限公司 A kind of adjustable examination of mouth bracket
CN109718571B (en) * 2019-01-10 2020-05-22 林一楠 Controllable multi-expression mask for dance performance and using method thereof
CN110327012A (en) * 2019-07-08 2019-10-15 青岛大学附属医院 Disposable formula patient film making is adjusted and stings device with rank of opening one's mouth

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211454921U (en) * 2020-03-16 2020-09-08 琼台师范学院 Singing and speaking sounding training clip

Also Published As

Publication number Publication date
CN113409650A (en) 2021-09-17

Similar Documents

Publication Publication Date Title
US10681444B2 (en) Headphone device
US10771885B2 (en) Headphone device
US8779262B1 (en) Capo
CA2387979C (en) Device to assist in therapy of patient who has limited jaw opening
ES2249826T3 (en) IMPROVED EYEBROW.
US2486267A (en) Adjustable earphone
CN209048339U (en) A kind of mouth cavity orthodontic auxiliary uses opener
CN113409650B (en) Singing and Speaking Vocal Training Clip
CN111448609A (en) device for supporting the saxophone
CN206293150U (en) A kind of capo tasto
US2253132A (en) Dental instrument
CN205395516U (en) multifunctional book holder
CN211454921U (en) Singing and speaking sounding training clip
CN206451504U (en) A kind of full-scale adjustable violin shoulder cradle
US2411692A (en) Instrument mouthpiece
CN202996269U (en) Musical instrument pedal striking device
US7655853B1 (en) Weight-relieving device for a woodwind instrument
CN106667613B (en) Common path of insertion visualizer in a kind of mouth of the anti-skidding nose support of band
US1738143A (en) Dentist's bite-check apparatus
US1722662A (en) Adjusting device
CN211181211U (en) Piano training pressure regulating finger force device convenient to adjust length
CN113884230A (en) Clamping force measuring device of head-mounted equipment
CN104546260B (en) A kind of rotary moving Medical orthopedic strap
CN222952820U (en) Water chestnut tone-changing clamp
CN207037973U (en) A piano hand shape corrector

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant