CN216535752U - Lower jaw bearing structure, lower jaw support and amblyopia and myopia comprehensive therapeutic instrument - Google Patents

Abstract

The utility model provides a lower jaw bearing structure, a lower jaw support and an amblyopia and myopia comprehensive therapeutic apparatus, relates to the technical field of medical instruments, and is used for solving the problems that in the prior art, a part material directly contacting with a patient has poor biocompatibility with human tissues, a contact part cannot be detached, the cost is high, and the like. A chin support structure comprising: the lower jaw supporting cushion is detachably and fixedly connected with the lower jaw supporting beam, the lower jaw supporting cushion is in direct contact with the lower jaw of a patient and supports the lower jaw of the patient, and the lower jaw supporting beam is used for bearing the lower jaw supporting cushion. The lower jaw pad is used as a part which is in direct contact with the lower jaw of a patient, is made of a material with good biocompatibility, is non-toxic and harmless to a human body, and cannot cause allergy or adverse reaction to surface tissues of the human body. And the lower jaw supporting pad and the lower jaw supporting beam can be detachably and fixedly installed, so that the lower jaw supporting pad can be conveniently and quickly subjected to material inspection, the cost is saved, and the flexibility is higher.

Description

Lower jaw bearing structure, lower jaw support and amblyopia and myopia comprehensive therapeutic instrument

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a lower jaw bearing structure, a lower jaw support and an amblyopia and myopia comprehensive therapeutic instrument.

Background

A large amount of research on student myopia and myopia animal models in domestic and abroad in nearly ten years suggests that the occurrence and development of acquired myopia of students mainly relate to a main cause: close to, and two key links: looking backward through focus and backward focusing (i.e., accommodative lag) are related. The professor of the Chinese original student myopia prevention and treatment expert group, the xuguang, also points out that the main cause of myopia development and development is 'seeing nearly' such as reading, writing and watching television and computer. When the human eyes see near, the central area is clear, but the peripheral vision is unclear, and the eyes are out of focus after the peripheral vision, so that the development of the axis of the eyes is lengthened, and the myopia is increased by about 300 degrees for every 1 mm. Meanwhile, the human eyes see near for a long time, which can cause the 'solidification' of the accommodation of the crystalline lens in the eyes to cause the post-focusing phenomenon of the accommodation lag, and can also cause the lengthening of the axis of the eyes and the development of myopia. Therefore, any myopia treatment needs to be capable of well controlling the near vision of students, or effectively blocking defocusing after the near vision of the periphery of the retina, or blocking focusing (adjustment lag) after the near vision of the retina, so that a good long-term effect can be obtained.

The existing therapeutic apparatus has the following problems: when a patient uses the therapeutic apparatus, the part material in direct contact with the patient has poor biocompatibility with human tissues, can generate toxicity, irritation, teratogenicity, local inflammation and other influences on the contact part of the patient, and needs to carry out material inspection on the part in contact with the patient.

Disclosure of Invention

In view of the above-mentioned disadvantages of the prior art, an object of the present invention is to provide a chin support structure, a chin support, and an amblyopia and myopia complex therapeutic apparatus, which are used to solve the problems of the prior art, such as poor biocompatibility between the material of the component directly contacting with the patient and the human tissue, and non-detachability of the contacting component.

To achieve the above and other related objects, the present invention provides a sliding motion structure, comprising: the lower jaw supporting cushion is detachably and fixedly connected with the lower jaw supporting beam, the lower jaw supporting cushion is in direct contact with the lower jaw of a patient and supports the lower jaw of the patient, and the lower jaw supporting beam is used for bearing the lower jaw supporting cushion.

Optionally, the lower jaw pad and/or the lower jaw joist is of an arc structure with a downward concave middle part.

Optionally, the material of the chin pad is biocompatible in accordance with the requirements of the international organization for standardization 10993 and/or the national standard GB/T16886.

Optionally, the chin rest pad is made of hard plastic.

Optionally, an installation convex part is arranged on the lower jaw supporting beam, an installation groove is arranged on one side of the lower jaw supporting pad, the other side of the lower jaw supporting pad is in contact with the patient, and the installation convex part can be embedded into the installation groove; be equipped with the screens groove on the side of the protruding piece of installation, be equipped with the screens piece on the inside wall of mounting groove, the screens piece with the joint cooperation can be dismantled in the screens groove.

Optionally, the outer side of the clamping piece is a guide side, the inner side of the clamping piece is a clamping side, and the surface of the guide side is an inclined plane or an arc surface.

A chin support comprises any chin supporting structure, and further comprises a base, a stand and a sliding structure, wherein the stand is mounted on the base through the sliding structure, and the stand and the base can be adjusted and locked in the front-back position through the sliding structure.

Optionally, the sliding structure includes a mounting body, a guide groove and a sliding assembly; the mounting body is a part of the base; the guide groove is arranged on the mounting body, an elastic piece is arranged on the guide groove, and a clamping bulge is arranged on the elastic piece; the clamping protrusion is provided with a first guide surface and a second guide surface in the positive and negative sliding directions respectively, the first guide surface and the second guide surface are inclined surfaces or arc surfaces, the elastic piece is used as a part of the groove wall of the guide groove, the elastic piece is formed by arranging a hollow structure on the groove wall of the guide groove, the groove wall of the guide groove and the elastic piece are made of plastic materials, one end of the elastic piece is fixed, the other end of the elastic piece is a free end, and the clamping protrusion is arranged on the free end; slip subassembly includes a plurality of screens teeth, each the screens tooth is along the ascending linear arrangement of slip direction, the screens protruding with the cooperation of screens tooth is realized right slip subassembly's slip displacement restriction works as when slip subassembly is promoted or the pulling surpasss limit chucking power, elastic component takes place elastic deformation in perpendicular to slip planar direction, the screens tooth all can be crossed on forward and reverse the protruding realization sliding adjustment of screens.

Optionally, the sliding assembly includes a first sliding part, a second sliding part and a tensioning part, the guide groove is of a through groove structure, the first sliding part is disposed in the guide groove and clamped on one side of the installation body through a first clamping structure, the second sliding part is clamped on the other side of the installation body through a second clamping structure, the tensioning part passes through the guide groove and relatively draws the first sliding part and the second sliding part together and tensions the first sliding part and the second sliding part, and the first sliding part and the second sliding part form a butt clamp structure for the installation body; the clamping teeth are arranged on the first sliding part, and the vertical frame is fixed on the first sliding part; the first sliding part is made of polyformaldehyde resin, and the second sliding part is made of polyformaldehyde resin.

An amblyopia and myopia comprehensive therapeutic instrument comprises any one of the lower jaw supports and a therapeutic instrument body, wherein the base is used for bearing the therapeutic instrument body; the therapeutic instrument main body is provided with a viewing window, and the viewing window can enable a patient to look into the therapeutic instrument main body from the outside of the therapeutic instrument main body.

As mentioned above, the lower jaw bearing structure, the lower jaw support and the amblyopia and myopia comprehensive therapeutic apparatus of the utility model at least have the following beneficial effects:

1. the lower jaw pad is used as a part which is directly contacted with the lower jaw of a patient, is made of a material with biocompatibility meeting the requirements of International organization for standardization 10993 and/or national standard GB/T16886, is non-toxic and harmless to a human body, and cannot cause allergy or adverse reaction on surface tissues of the human body.

2. The lower jaw supporting structure is an arc-shaped structure with the middle sunken downwards, the lower jaw supporting structure is attached to the lower jaw of a human body, and a patient places the lower jaw on the lower jaw supporting pad in the instrument using process, so that the pressure of the head and the neck is relieved.

3. The lower jaw supporting structure is a detachable structure, and because parts in contact with a patient need to be subjected to material inspection, if the parts are not designed according to the technical scheme, the whole structure of the support needs to be made of materials meeting the biocompatibility requirement, the cost is high, the inspection operation of the whole support structure is inconvenient, the lower jaw supporting pad in the lower jaw supporting structure is detachably arranged on the lower jaw supporting beam, the lower jaw supporting pad is made of the materials meeting the biocompatibility, the cost is saved, and the lower jaw supporting pad only needs to be detached and then directly inspected during inspection, so that the operation is simpler.

4. According to the utility model, the mounting convex piece on the lower jaw joist can be embedded into the mounting groove of the lower jaw joist, and the clamping piece on the inner side wall of the mounting groove is detachably clamped and matched with the clamping groove on the side surface of the mounting convex piece, so that the lower jaw joist is more convenient to dismount or fix, and further the dismounting and mounting of the lower jaw joist and the lower jaw joist are more convenient and rapid, and the flexibility is higher.

5. Through sliding assembly's setting has realized the adjustable back and forth of chin support to realized that the people of different types of face all can use, especially to the great condition of different teenagers development condition differences, the scheme of this application can realize effective adaptation.

Drawings

Fig. 1 is a schematic structural view of the connecting base of the chin support of the present invention.

Figure 2 shows a schematic exploded view of the chin support structure of the present invention.

Figure 3 shows a schematic view of the base of the utility model (the privacy panel with the upper surface of the base removed).

Fig. 4 shows a cross-sectional view of the chin support of the present invention (the covering plate with the upper surface of the base removed).

Fig. 5 is a schematic view of the first sliding member of the present invention.

Figure 6 shows an exploded view of the base of the present invention (the covering panel with the upper surface of the base removed).

Fig. 7 is a partial enlarged view of a in fig. 6.

Fig. 8 shows a perspective view of the chin support of the present invention (a mimicry plate with a pedestal upper surface).

Fig. 9 shows a perspective view of the chin support of the present invention (the privacy panel with the upper surface of the base removed).

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention.

Please refer to fig. 1 to 9. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so that the present disclosure is not limited to the technical essence, and any modifications of the structures, changes of the ratios, or adjustments of the sizes, can still fall within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

The following examples are for illustrative purposes only. The various embodiments may be combined, and are not limited to what is presented in the following single embodiment.

Referring to fig. 1 and 2, the present invention provides an embodiment of a chin support structure, comprising: the lower jaw supporting cushion 41 is detachably and fixedly connected with the lower jaw supporting beam 42, the lower jaw supporting cushion 41 is in direct contact with the lower jaw of the patient and supports the lower jaw of the patient, and the lower jaw supporting beam 42 is used for bearing the lower jaw supporting cushion 41. The lower jaw pad 41 is used as a part which is in direct contact with the lower jaw of a patient and is made of a material with biocompatibility meeting the requirements of International organization for standardization 10993 and/or national Standard GB/T16886, and the selected material can be hard plastic, is non-toxic and harmless to a human body and cannot cause allergy or adverse reaction to surface tissues of the human body; the lower jaw pad 41 in the lower jaw bearing structure is detachably mounted on the lower jaw joist 42, the lower jaw pad 41 is made of a material meeting biocompatibility, so that the cost is saved, and the lower jaw pad 41 is only required to be detached and then directly checked during checking, so that the operation is simpler; the lower jaw pad 41 and the lower jaw joist 42 are arc-shaped structures with downward concave middles and are attached to the lower jaw of a human body, and the patient places the lower jaw on the lower jaw pad 41 in the process of using the instrument, so that the pressure of the head and neck is relieved.

In this embodiment, referring to fig. 2, an installation convex part 421 is provided on the lower jaw joist 42, an installation groove 411 is provided on one side of the lower jaw pad 41, the other side of the lower jaw pad 41 contacts with the patient, and the installation convex part 421 can be inserted into the installation groove 411; be equipped with screens groove 4211 on the side of installation protruding member 421, be equipped with screens piece 4111 on the inside wall of mounting groove 411, screens piece 4111 with the joint cooperation can be dismantled in screens groove 4211. Through on the chin joist 42 installation protruding piece 421 is embedded into the chin joist 41 in the mounting groove 411, just on the inside wall on the mounting groove 411 screens piece 4111 in the joint complex design can be dismantled to the screens groove 4211 on the installation protruding piece 421 side, makes the chin joist 41 is convenient more to be dismantled or is fixed on the chin joist 42, and then convenient and fast more will the chin joist 41 carries out the material censorship, has avoided carrying out the material censorship with whole chin support and has operated the inconvenient condition, and the flexibility is higher.

In this embodiment, referring to fig. 2, an outer side of the locking member 4111 is a guiding side, an inner side of the locking member 4111 is a locking side, and a surface of the guiding side is an inclined surface or an arc surface. The design on cambered surface or inclined plane is held in the direction side of screens piece 4111, makes screens piece 4111 can accomplish the action of going into smoothly, after going into the card, screens piece 4111's card side can be for the design of straight face, has injectd screens piece 4111 in the relative displacement of screens groove 4211 makes the back of going into chin die pad 41 fixed mounting in on the chin joist 42, design simple reasonable in structure, it is convenient chin die pad 41 with the fixed mounting and the dismantlement of chin joist 42.

In this embodiment, please refer to fig. 1 and 9, a chin support includes the chin support structure of any embodiment, further includes a base 34, a stand 35 and a sliding structure, wherein the stand 35 is mounted on the base 34 through the sliding structure.

In this embodiment, referring to fig. 3-7 and 9, the sliding structure includes: the mounting structure comprises a mounting body 31, a guide groove 32 and a sliding assembly 33, wherein the mounting body 31 is a part of a base 34, the guide groove 32 is arranged on the mounting body 31, an elastic piece 321 is arranged on the guide groove 32, and a clamping protrusion 3211 is arranged on the elastic piece 321; the sliding component 33 includes a plurality of screens teeth 331, each the screens tooth 331 is along the ascending linear arrangement of slip direction, the screens arch 3211 with the screens tooth 331 cooperates and realizes to the slip displacement restriction of sliding component 33, when the sliding component 33 is pushed or when pulling surpasses the limit chucking power, elastic component 321 takes place elastic deformation in the direction of perpendicular to slip plane, screens tooth 331 all can cross on forward and reverse the screens arch 3211 realizes sliding adjustment. Through sliding assembly 33's setting, realized that the front and back of support is adjustable to the people who realizes different types of face all can use, especially to the great condition of different teenagers development condition differences, the scheme of this application can realize effective adaptation. Through screens tooth 331, the protruding 3211 of screens and the cooperation of elastic component 321, the locking of gear can be realized to screens tooth 331 and the protruding 3211 of screens, and when the distance around needs to adjust, promote or stimulate the support, elastic component 321 warp and makes the protruding 3211 of screens give way, can let the protruding 3211 card of screens in the different positions of screens tooth 331, realize the automatic locking of many gears, and need not pass through structures such as bolt or bolt, convenient operation is swift.

In this embodiment, referring to fig. 7, the locking protrusion 3211 is respectively provided with a first guide surface 32111 and a second guide surface 32112 in the forward and reverse directions of sliding, and the first guide surface 32111 and the second guide surface 32112 are inclined surfaces or arc surfaces. The first guide surface 32111 and the second guide surface 32112 are respectively arranged in the forward and reverse directions, so that the locking protrusion 3211 and the locking tooth 331 can be locked in both the forward and reverse directions and can move relative to each other when a limit push-pull force is applied.

In this embodiment, referring to fig. 7, the elastic member 321 is used as a part of a groove wall of the guide groove 32, the elastic member 321 is formed by disposing a hollow structure on the groove wall of the guide groove 32, the groove wall of the guide groove 32 and the elastic member 321 are both made of plastic, one end of the elastic member 321 is fixed, the other end of the elastic member 321 is a free end, and the locking protrusion 3211 is disposed on the free end. Elastic component 321 is as a part of the cell wall of guide way 32, and through hollow out construction and plastic construction cooperation, realizes the elasticity function for it can be through injection mold one shot forming, and it is convenient to make, need not dispose other spare parts alone, and screens tooth 331 structure also can be with guide way 32 integrated into one piece, and its cost is lower.

In this embodiment, referring to fig. 3-7 and 9, the sliding assembly 33 includes a first sliding member 332, a second sliding member 333 and a tightening member 334, the stand 35 is fixed on the first sliding member 332, the guide slot 32 is a through slot structure, the first sliding member 332 is disposed in the guide slot 32 and is clamped on one side of the mounting body 31 by a first clamping structure, the specific structure of the first clamping structure is not limited here as long as the clamping effect can be achieved, for example, the first clamping structure may be a pin structure, the second sliding member 333 is clamped on the other side of the mounting body 31 by a second clamping structure, the specific structure of the second clamping structure is not limited here as long as the clamping effect can be achieved, for example, the pin structure, the tightening member 334 passes through the guide slot 32 and tightens the first sliding member 332 and the second sliding member 333 relatively together, the tightening member 334 can be a bolt and nut combination structure, and the first slider 332 and the second slider 333 form a clamp structure for the mounting body 31; the detent tooth 331 is disposed on the first slider 332. First slider 332, second slider 333 and the cooperation of straining piece 334 three for can dismantle during the installation, and first slider 332 and second slider 333 are connected by straining piece 334, make the slip displacement can not obstructed, the interference fit of first slider 332 and spout makes screens tooth 331 and the protruding 3211 of screens can have better block stability, when holding user's chin, the support can not produce rocking around rocking, and the cooperation of interference fit and elastic component 321, when having guaranteed stability, still guaranteed its function that can adjust from beginning to end, moreover, the steam generator is simple in structure, and convenient to use.

In this embodiment, referring to fig. 5 and fig. 6, the first locking structure includes a flange structure 3320 disposed on the contour of the first sliding member 332, the width of the second sliding member 333 is greater than the width of the guiding slot 32, and the first sliding member 332 itself is the second locking structure; the detent tooth 331 is disposed on the first slider 332. Through the arrangement of the flanging structure 3320, a clamping structure is not required to be arranged to prevent the first sliding member 332 from penetrating through the guide groove 32, and the flanging structure 3320 has the characteristics of uniform stress and convenience in manufacturing.

In this embodiment, referring to fig. 6, the sliding assembly 33 includes a first sliding member 332, a second sliding member 333 and a tensioning member 334, and the guide slot 32 is a through slot structure; a partition 311 is further disposed on the mounting body 31, and the partition 311 is located at a notch position of the guide slot 32, or the partition 311 is located in the guide slot 32; a strip-shaped through hole 3111 is formed in the partition 311, the width of the strip-shaped through hole 3111 is smaller than that of the guide groove 32, the bottom of the first sliding member 332 is in sliding fit with the partition 311, and the width of the second sliding member 333 is smaller than that of the strip-shaped through hole 3111; the first slide member 332 is placed in the guide slot 32 and clamped by the partition 311 on one side of the mounting body 31, the second slide member 333 is clamped on the other side of the mounting body 31 through the partition 311, the tightening member 334 passes through the guide slot 32 and tightens the first slide member 332 and the second slide member 333 relatively close to each other, and the first slide member 332 and the second slide member 333 form a butt-clamping structure for the partition 311; when the first slider 332 slides in the longitudinal direction of the guide groove 32, the tension member 334 slides in the bar-shaped through hole 3111. The partition 311 is provided so that the bar-shaped through-hole 3111 and the guide groove 32 can form a stepped hole structure so that the first slider 332 does not pass through the bar-shaped through-hole 3111 and the second slider 333 does not pass through the bar-shaped through-hole 3111, thereby achieving tension fixation while not hindering the synchronous sliding of the first slider 332 and the second slider 333.

In this embodiment, referring to fig. 5, a hollowed structure 3321 is disposed on the first sliding member 332, and the first sliding member 332 and the guide slot 32 are in interference fit. The hollowed structure 3321 enables the first sliding element 332 to have better elasticity, especially in the case that the first sliding element 332 and the guiding slot 32 are too hard to be matched, when the bracket is pushed or pulled, the first sliding element 332 can generate a certain elastic deformation, and the elastic deformation is matched with the elastic deformation of the elastic element 321, so that the pushing or pulling can be smoother. If only the elastic member 321 is deformed, there is a possibility of a seizure.

In this embodiment, optionally, the first sliding member 332 is made of polyoxymethylene resin, and the second sliding member 333 is made of polyoxymethylene resin. The polyoxymethylene resin material has better wear resistance, and enables the first sliding member 332 and the second sliding member 333 to have certain elastic properties.

In this embodiment, an amblyopia and myopia comprehensive therapeutic apparatus comprises the mandible support of any embodiment, and further comprises a therapeutic apparatus body, wherein the base 34 is used for bearing the therapeutic apparatus body; the therapeutic instrument body comprises a viewing window, and the lower jaw support is used for supporting the lower jaw of a user and enabling the eyes of the user to be aligned with the viewing window.

In conclusion, the lower jaw pad 41 in the utility model is used as a part directly contacting with the lower jaw of a patient, is made of a material with biocompatibility meeting the requirements of the international organization for standardization 10993 and/or the national standard GB/T16886, is non-toxic and harmless to the human body, and does not cause allergy or adverse reaction on the surface tissue of the human body; the lower jaw pad 41 in the lower jaw bearing structure is detachably mounted on the lower jaw joist 42, the lower jaw pad 411 is made of a material meeting biocompatibility, so that the cost is saved, and in the inspection, the lower jaw pad 41 is only required to be detached and then directly inspected, so that the operation is simpler; the lower jaw supporting structure is an arc-shaped structure with a downward concave middle part and is attached to the lower jaw of a human body, and a patient places the lower jaw on the lower jaw supporting pad 41 in the instrument using process, so that the pressure of the head and the neck is relieved; the mounting convex piece 421 on the lower jaw joist 42 can be embedded into the mounting groove 411 of the lower jaw joist 41, and the blocking piece 4111 on the inner side wall of the mounting groove 411 is detachably clamped and matched with the blocking groove 4211 on the side surface of the mounting convex piece 421, so that the lower jaw joist 41 is more convenient to detach or fix on the lower jaw joist 42, the lower jaw joist 41 is more convenient and faster to perform material inspection, and the flexibility is higher; through sliding assembly's setting has realized the adjustable back and forth of chin support to realized that the people of different types of face all can use, especially to the great condition of different teenagers development condition differences, the scheme of this application can realize effective adaptation. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A chin support structure comprising: the lower jaw supporting cushion is detachably and fixedly connected with the lower jaw supporting beam, the lower jaw supporting cushion is in direct contact with the lower jaw of a patient and supports the lower jaw of the patient, and the lower jaw supporting beam is used for bearing the lower jaw supporting cushion.

2. A chin support structure according to claim 1 wherein: the lower jaw supporting cushion and/or the lower jaw supporting beam are of arc structures with the middle portions being sunken downwards.

3. A chin support structure according to claim 1 wherein: the material biocompatibility of the chin pad conforms to the requirements of the international organization for standardization 10993 and/or the national standard GB/T16886.

4. A chin support structure according to claim 3 wherein: the lower jaw support pad is made of hard plastics.

5. A chin support structure according to any one of claims 1 to 4 wherein: the lower jaw supporting beam is provided with a mounting convex part, one side of the lower jaw supporting pad is provided with a mounting groove, the other side of the lower jaw supporting pad is contacted with a patient, and the mounting convex part can be embedded into the mounting groove;

be equipped with the screens groove on the side of the protruding piece of installation, be equipped with the screens piece on the inside wall of mounting groove, the screens piece with the joint cooperation can be dismantled in the screens groove.

6. A chin support structure according to claim 5 wherein: the outside one side of screens piece is the direction side, the interior limit one side of screens piece is the card and inclines, the surface of direction side is inclined plane or cambered surface.

7. A chin support, comprising: comprising a chin support structure according to any of claims 1 to 6,

still include base, grudging post and sliding construction, the grudging post passes through sliding construction installs on the base just the grudging post with the base accessible sliding construction realizes the adjustment and the locking of front and back position.

8. A chin support according to claim 7, wherein: the sliding structure comprises an installation body, a guide groove and a sliding assembly; the mounting body is a part of the base;

the guide groove is arranged on the mounting body, an elastic piece is arranged on the guide groove, and a clamping bulge is arranged on the elastic piece; the clamping protrusion is provided with a first guide surface and a second guide surface in the positive and negative sliding directions respectively, the first guide surface and the second guide surface are inclined surfaces or arc surfaces, the elastic piece is used as a part of the groove wall of the guide groove, the elastic piece is formed by arranging a hollow structure on the groove wall of the guide groove, the groove wall of the guide groove and the elastic piece are made of plastic materials, one end of the elastic piece is fixed, the other end of the elastic piece is a free end, and the clamping protrusion is arranged on the free end;

slip subassembly includes a plurality of screens teeth, each the screens tooth is along the ascending linear arrangement of slip direction, the screens protruding with the cooperation of screens tooth is realized right slip subassembly's slip displacement restriction works as when slip subassembly is promoted or the pulling surpasss limit chucking power, elastic component takes place elastic deformation in perpendicular to slip planar direction, the screens tooth all can be crossed on forward and reverse the protruding realization sliding adjustment of screens.

9. A chin support according to claim 8, wherein: the sliding assembly comprises a first sliding part, a second sliding part and a tensioning part, the guide groove is of a through groove structure, the first sliding part is arranged in the guide groove and clamped on one side of the installation body through a first clamping structure, the second sliding part is clamped on the other side of the installation body through a second clamping structure, the tensioning part penetrates through the guide groove and relatively draws the first sliding part and the second sliding part together and tensions the first sliding part and the second sliding part, and the first sliding part and the second sliding part form a butt clamping structure for the installation body;

the clamping teeth are arranged on the first sliding part, and the vertical frame is fixed on the first sliding part; the first sliding part is made of polyformaldehyde resin, and the second sliding part is made of polyformaldehyde resin.

10. An amblyopia and myopia comprehensive therapeutic instrument is characterized in that: comprising a chin support according to any of claims 7 to 9, further comprising an apparatus body, the base being adapted to carry the apparatus body;

the therapeutic apparatus main body is provided with a viewing window, and the viewing window can enable a patient to look into the therapeutic apparatus main body from the outside of the therapeutic apparatus main body.

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