Multifunctional detachable mouth gag for orthodontics

Abstract

The invention relates to the technical field of mouth gags, in particular to an orthodontic multifunctional detachable mouth gag which is characterized in that rotating arms are hinged to the middle of the top end and the middle of the bottom end of a base body, suspension frames are hinged to the ends of the rotating arms, clamp arms are hinged to the positions, located on the outer sides of the suspension frames, of the ends of the rotating arms, and a shaft tube is slidably installed on the end face of one side of the base body in an embedded mode; by means of the oral cavity supporting device, a doctor can more visually feel and control the supporting force borne by the oral cavity of a patient, the doctor can be assisted in more accurately regulating and controlling the external expansion force, the supporting reliability is guaranteed, pulling injury of muscles around the oral cavity is avoided, and meanwhile the supporting effect of the patient is improved. The comfort of a patient is improved, the supporting work is more relaxed, the stress on the mouth of the patient is more balanced, the integrating degree of the mouth gag and the oral cavity of the patient is greatly improved, the different requirements of oral cavity sizes and shapes of different patients are considered, and the supporting work of the mouth gag is more efficient.

Description

Technical Field

[0001] The invention relates to the technical field of mouth openers, in particular to a multifunctional detachable mouth opener for oral orthodontics. Background Art

[0002] An opener, also known as a mouth opener, can ensure that the patient's mouth remains open, expand the oral space, and facilitate doctors to perform various oral medical operations. A Chinese patent discloses an adjustable oral orthodontic opener, application number: 202322497536.6. The device can adjust the size of the opener to accommodate patients with different oral sizes, and at the same time add auxiliary lighting equipment, which brings great convenience to medical staff; However, the current mouth openers not only have a single size and expansion method, but are unable to effectively meet the individual differences in the patient's mouth size, and the expansion size and support strength are mostly non-adjustable and rigidly regulated. The doctor's regulation of the expansion size and support strength is not intuitive and accurate, which not only causes insufficient comfort for the patient, but also easily causes strain on the muscles around the oral cavity. The support work is also not reliable enough. At the same time, it cannot be used for later rehabilitation training and has a small range of adaptability. Summary of the invention

[0003] The present invention provides a multifunctional detachable mouth opener for oral orthodontics, which can effectively solve the problem that the current mouth opener proposed in the above background technology not only has a single size and outward expansion method, but is unable to effectively fit the individual differences in the patient's mouth size, and the outward expansion size and supporting strength are mostly non-adjustable and rigidly regulated. The doctor's regulation of the outward expansion size and supporting strength is not intuitive and accurate, which not only causes insufficient comfort for the patient, but also easily causes strain to the muscles around the oral cavity, and the supporting work is not reliable enough. At the same time, it cannot be used for later rehabilitation training and has a small range of adaptability.

[0004] To achieve the above object, the present invention provides the following technical solution: a multifunctional detachable mouth opener for oral orthodontics, comprising a base, wherein the top and the middle of the bottom of the base are both hinged with a rotating arm, the end of the rotating arm is hinged with a suspension, the end of the rotating arm is hinged with a clamp arm at a position outside the suspension, and the end surface of the suspension is equipped with a sympathetic expansion mechanism; The sympathetic expansion mechanism includes an axle tube; An axle tube is embedded and slidably installed on one end surface of the base, a piston is slidably installed inside the base, a pilot valve is embedded and installed in the middle of the other end surface of the base, a pressure gauge is embedded and installed on one side of the top of the base, a guide tube is installed on the end of the axle tube, a block is embedded and slidably installed on one end of the clamp arm, an air cavity is opened inside the clamp arm at the position corresponding to the block, a finger pressure head is installed in the middle of the side end surface of the block, a block is embedded and slidably installed on the side end surface of the air cavity near the block position, and a spring is installed at the end of the block; A slide is embedded and installed at the top of the base, and straight tubes are embedded and slidably installed at both ends of the slide, and a plug ring is installed at the end of the straight tube located inside the slide, and guide holes are opened in the middle of the slide and the piston side end surface, and a bar box is installed at the other end of the straight tube, and a plug is installed on the other side of the bottom of the bar box through a thread, and a flaring seat is rotatably installed at the end of the plug; A top box is installed on both sides of one of the flaring seats, and a bottom box is installed on both sides of the other flaring seat. Ring plugs are slidably installed inside the top box and the bottom box, and a horizontal tube is installed on the end of the ring plug. A vertical tube is installed on one side of the bottom end of the top box, and a cylinder is installed on one side of the top end of the bottom box. A sealing ring is installed on the end of the vertical tube at a position inside the cylinder.

[0005] Preferably, the guide valve is a one-way valve, the air cavity is connected to the shaft tube through a conduit, the shaft tube and the slide are connected to the inner cavity of the base through a guide hole, the longitudinal section of the blockage is I-shaped, and the original length of the spring is greater than the thickness of the air cavity.

[0006] Preferably, cheek plates are installed at the corners of the arc-shaped portion of the top box, and the arc-shaped portions of the top box and the bottom box and the cheek plates all fit the arc of the human oral cavity.

[0007] Preferably, the top box and the bottom box are both sealingly and slidingly connected to the transverse tube, and the end of the transverse tube is connected to the expansion seat through threads.

[0008] Preferably, the interiors of the top box and the bottom box at locations outside the horizontal tube and the interior of the cylinder at locations outside the vertical tube are filled with clean air.

[0009] Preferably, the sealing ring is slidably connected to the cylinder, and the cylinder fits with the sealing ring, and the sliding distance of the sealing ring is the same as the sliding distance of the plug ring.

[0010] Preferably, a segmented splicing mechanism is installed on the outside of the valve housing, and the segmented splicing mechanism includes a valve housing; A valve housing is installed at the position of the outer curved surface of the transverse tube near the flared seat, a driving bolt is installed on the top of the outer curved surface of the valve housing through thread embedding, a plug disc is installed on the end of the driving bolt, a column cavity is opened inside the transverse tube at the position corresponding to the plug disc, a plurality of side holes are opened at equal angles along the circumferential direction at the outer curved surface of the transverse tube located at the inner position of the flared seat, a stop plate is symmetrically and slidably installed inside the flared seat, a compression spring is installed in the middle of the side end surface of the stop plate, and a plurality of grooves are opened at equal angles along the circumferential direction on the outer curved surface of the stop plate; A strip plate is slidably installed inside the strip box, a pin is installed at the end surface of the strip plate corresponding to the position of the insertion tube, a flower plate is slidably installed inside the insertion tube, a plurality of protrusions are installed at equal angles along the circumferential direction at the end of the insertion tube, a screw rod is threadedly installed at the end surface of the expansion seat close to one side of the base, a tooth plate is installed at the end of the screw rod, and a clamping tube is embedded in the middle of the top end of the tooth plate; A negative pressure ball is installed at one end of the clamping tube, and a pinching ball is installed at the other end of the negative pressure ball. Check valves are installed at the positions of the clamping tube at both ends of the pinching ball. Connecting pipes are installed on both sides of the top end of the top box, both sides of the bottom end of the bottom box and both sides of the outer curved surface of the cylinder. A flat box is installed at the end of the connecting pipe, and a sealing bolt is installed at the end surface of the flat box at the position corresponding to the connecting pipe through thread embedding.

[0011] Preferably, the original length of the compression spring is greater than twice the sliding distance of the stop plate, the minimum spacing between the stop plate and the end face of the flared seat is smaller than the distance between the valve housing and the side hole, the spacing between the strip plate and the bottom end of the strip box is smaller than the length of the insert tube, the minimum spacing between the flower plate and the end of the insert tube is smaller than the length of the ejector pin, an air valve is embedded in the end face of the strip box away from the side of the insert tube length, and the interior of the strip box is filled with clean air at the position between the air valve and the strip plate.

[0012] Preferably, a tooth pad is embedded and bonded on the end face of the tooth plate, and the cross-section of the tooth pad matches the arc of human oral teeth. The check valves at both ends of the pinching ball are respectively an inlet one-way valve and an outlet one-way valve, and the pinching ball is connected to the clamping tube through the inlet one-way valve, and the negative pressure ball is a hollow mesh structure.

[0013] Preferably, the spaces in the inner cavities of the top box and the bottom box on both sides of the ring plug are connected to the flat box through a connecting tube, and the spaces in the inner cavity of the cylinder on both sides of the sealing ring are connected to the flat box through a connecting tube, the length of the sealing bolt is greater than the thickness of the flat box, and the end of the sealing bolt fits with the connecting tube.

[0014] Compared with the prior art, the invention has the following beneficial effects: the invention has a scientific and reasonable structure and is safe and convenient to use; 1. It is equipped with a sympathetic expansion mechanism. Through the coordination of the shaft tube, piston, pilot valve, plug and spring, an air pressure control structure can be constructed. It can achieve stepless control more efficiently and stably with the help of the driving force provided by the rotating arm, suspension and clamp arm, which greatly improves the convenience and flexibility of adjusting the external expansion size and strength of the expander. In addition, the synchronous sensing effect of the catheter, plug, air cavity and finger pressure head can make the doctor feel and control the support strength of the patient's mouth more intuitively, greatly improving the convenience, intuitiveness, stability and reliability of controlling the support strength of the patient's mouth; Equipped with the air pressure reading function of the barometer, it can assist the doctor to more accurately adjust the outward expansion force, while ensuring the reliability of support and avoiding strain on the muscles around the oral cavity, it can improve the comfort of patients, improve the fit with different patients, and meet different support needs. At the same time, it changes the direct rigid support method of the clamp-type mouth opener, and provides oral support to the patient in an elastic outward expansion manner, which not only improves the outward expansion adjustment range of the mouth opener, but also makes the support work more soothing, makes the patient's mouth more evenly stressed, greatly improves the support effect and the controllability of the mouth opener, and can also take into account the later rehabilitation training, meet the different strength requirements during passive stretching training and active strength training, and make the strength control work more convenient and efficient.

[0015] 2. Through the cooperation of the cannula, the expansion seat, the top box, the bottom box, the ring plug, the horizontal tube, the vertical tube, the cylinder and the sealing ring, a two-way expansion structure can be constructed to improve the controllability of the expansion mode of the mouth opener. On the one hand, while ensuring the support stability, the expansion mode of the mouth opener can be further made to fit the patient's mouth shape, greatly improving the fit between the mouth opener and the patient's oral cavity, taking into account the different oral sizes and shapes of different patients, making the support work of the mouth opener more flexible, efficient and more humane; On the other hand, it can cooperate with the slide tube, plug ring, guide hole, straight tube and strip box to form a double elastic support structure, which can further ensure the reliability of the outward expansion force of the opener and the sensitivity of the outward expansion action, and can adjust the angle of the rotating arm, suspension and clamp arm without affecting the supporting force, which can effectively improve the observation and diagnosis angle, expand the hand operation space, and make the doctor's diagnosis and treatment work more convenient.

[0016] 3. A segmented splicing mechanism is provided. By cooperating with the valve housing, driving bolts, plug disc, column cavity, side hole, stopper plate, compression spring and groove, an elastic connection structure and a hard locking structure can be constructed. In addition, the flow limiting effect of the strip plate, ejector pin, flower plate and protrusion can realize the dynamic connection between the strip box, top box, bottom box and expansion seat. The opener can be flexibly assembled according to actual needs. While ensuring the support integrity of the opener, the relative independence of the components can be fully retained. The needs of different patients with different conditions can be flexibly met, and the independence and comprehensive support of the lips, cheeks and teeth can be flexibly realized. It not only improves the flexibility of the opening operation of the opener, but also enables patients and doctors to realize the mouth opening work more efficiently and quickly, making the diagnosis and treatment work and rehabilitation training work more convenient and reliable, but also makes the disassembly and replacement of the entrance part of the opener and the cleaning work more reliable, effectively improving medical hygiene; In addition, the linkage of the screw rod, tooth plate, clamping tube, negative pressure ball, pinching ball and check valve can constitute a tooth support structure and a saliva cleaning structure, which can further enrich the functionality of the mouth opener, integrating mouth support and saliva cleaning into one, making the doctor's diagnosis and treatment work more stable and reliable; through the cooperation of the connecting tube, flat box and sealing bolts, a flow limiting guide structure can be constructed, and the initial state of the mouth opener can be fine-tuned and corrected, which greatly improves the matching degree of the initial size of the mouth opener with different patients, so that the support work of the mouth opener can be carried out more smoothly.

[0017] To sum up, the mouth opener can realize stepless control of the support strength and the opening size, and realize two-way control of the outward expansion mode, which can greatly improve the soothing effect of the support while ensuring the stability of the support, and at the same time improve the patient's comfort, the mouth opener can be more suitable for the mouth size of different patients, and the doctor can control the expansion force more intuitively, efficiently and accurately. In addition, the detachable installation method can make the operation mode of the mouth opener more flexible, taking into account the doctor's diagnosis and treatment and later rehabilitation training, and effectively improving the scope of application of the mouth opener. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached picture: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the expansion seat of the present invention; Figure 3 It is a schematic diagram of the structure of the sympathetic expansion mechanism of the present invention; Figure 4 It is a schematic diagram of the installation structure of the block of the present invention; Figure 5 It is a schematic diagram of the shaft tube installation structure of the present invention; Figure 6 It is a schematic diagram of the structure of the segmented splicing mechanism of the present invention; Figure 7 is a partial exploded view of the present invention; Numbers in the figure: 1, base; 2, rotating arm; 3, suspension; 4, clamp arm; 5, cheek plate 200, sympathetic expansion mechanism; 201, shaft tube; 202, piston; 203, pilot valve; 204, catheter; 205, block; 206, air cavity; 207, finger pressure head; 208, block; 209, spring; 210, barometer; 211, slide cylinder; 212, plug ring; 213, guide hole; 214, straight tube; 215, strip box; 216, insert tube; 217, expansion seat; 218, top box; 219, bottom box; 220, ring plug; 221, horizontal tube; 222, vertical tube; 223, cylinder; 224, sealing ring; 300, segmented splicing mechanism; 301, valve housing; 302, driving bolt; 303, plug disc; 304, column cavity; 305, side hole; 306, stopper plate; 307, compression spring; 308, groove; 309, strip plate; 310, ejector pin; 311, flower plate; 312, bump; 313, screw rod; 314, tooth plate; 315, clamping tube; 316, negative pressure ball; 317, pinch ball; 318, check valve; 319, connecting pipe; 320, flat box; 321, sealing bolt; 3091, air valve; 3141, tooth pad. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example: Figure 1-7 As shown, the present invention provides a technical solution, a multifunctional detachable mouth opener for oral orthodontics, comprising a base 1, a rotating arm 2 is hingedly connected to the top and the middle of the bottom of the base 1, a suspension 3 is hingedly connected to the end of the rotating arm 2, a clamp arm 4 is hingedly connected to the end of the rotating arm 2 at the outer position of the suspension 3, and a sympathetic expansion mechanism 200 is installed on the end surface of the suspension 3; The sympathetic expansion mechanism 200 includes an axial tube 201, a piston 202, a pilot valve 203, a guide tube 204, a block 205, an air cavity 206, a finger pressure head 207, a plug 208, a spring 209, a barometer 210, a slide 211, a plug ring 212, a guide hole 213, a straight tube 214, a bar box 215, a plug 216, an expansion seat 217, a top box 218, a bottom box 219, a ring plug 220, a horizontal tube 221, a vertical tube 222, a cylinder 223 and a sealing ring 224; An axis tube 201 is embedded and slidably installed on one end surface of the base 1, a piston 202 is slidably installed inside the base 1, a pilot valve 203 is embedded and installed in the middle of the other end surface of the base 1, a pressure gauge 210 is embedded and installed on one side of the top of the base 1, a guide tube 204 is installed on the end of the axis tube 201, a blocking block 205 is embedded and slidably installed on one end of the clamp arm 4, an air cavity 206 is opened inside the clamp arm 4 at the position corresponding to the blocking block 205, a finger pressure head 207 is installed in the middle of the side end surface of the blocking block 205, a plug 208 is embedded and slidably installed on the side end surface of the air cavity 206 near the position of the blocking block 205, and a spring 209 is installed at the end of the plug 208; A slide 211 is embedded and installed at the top of the base 1, the guide valve 203 is a one-way valve, the air cavity 206 is communicated with the shaft tube 201 through the guide tube 204, the shaft tube 201 and the slide 211 are communicated with the inner cavity of the base 1 through the guide hole 213, the longitudinal section of the plug 208 is I-shaped, the original length of the spring 209 is greater than the thickness of the air cavity 206, so as to perform stepless regulation of the external expansion force, straight tubes 214 are embedded and slidably installed at both ends of the slide 211, and a plug ring 212 is installed at the end of the straight tube 214 located at the inner position of the slide 211, the slide 211 and the piston 202 are provided with guide holes 213 in the middle of the side end faces, a bar box 215 is installed at the other end of the straight tube 214, a plug 216 is installed by threading at the other side of the bottom of the bar box 215, and a flaring seat 217 is rotatably installed at the end of the plug 216; A top box 218 is installed on both sides of one flared seat 217, and a bottom box 219 is installed on both sides of the other flared seat 217. A cheek plate 5 is installed at the corner of the arc-shaped part of the top box 218, and the arc-shaped parts of the top box 218 and the bottom box 219 and the cheek plate 5 are in line with the arc of the human oral cavity to improve the support effect. A ring plug 220 is slidably installed inside the top box 218 and the bottom box 219, and a transverse tube 221 is installed at the end of the ring plug 220. The top box 218 and the bottom box 219 are both sealed and slidably connected with the transverse tube 221, and the end of the transverse tube 221 is connected to the flared seat 217 through a thread to improve the support reliability; A vertical pipe 222 is installed on one side of the bottom end of the top box 218, and a cylinder 223 is installed on one side of the top end of the bottom box 219. The interior of the top box 218 and the bottom box 219 at the outer position of the horizontal pipe 221 and the interior of the cylinder 223 at the outer position of the vertical pipe 222 are filled with clean air to improve the ease of use of the expander. A sealing ring 224 is installed at the end of the vertical pipe 222 at the inner position of the cylinder 223. The sealing ring 224 is slidably connected to the cylinder 223, and the cylinder 223 fits with the sealing ring 224. The sliding distance of the sealing ring 224 is the same as the sliding distance of the plug ring 212 to improve the stability of the outward expansion.

[0022] A segmented splicing mechanism 300 is installed outside the valve housing 301, and the segmented splicing mechanism 300 includes a valve housing 301, a driving bolt 302, a plug disc 303, a column cavity 304, a side hole 305, a stopper plate 306, a compression spring 307, a groove 308, a strip plate 309, a thimble 310, a flower plate 311, a convex block 312, a screw rod 313, a tooth plate 314, a clamping tube 315, a negative pressure ball 316, a pinch ball 317, a check valve 318, a connecting pipe 319, a flat box 320 and a sealing bolt 321; A valve housing 301 is installed at a position of the outer curved surface of the transverse tube 221 near the flared seat 217, a driving bolt 302 is installed at the top of the outer curved surface of the valve housing 301 through thread embedding, a plug disc 303 is installed at the end of the driving bolt 302, a column cavity 304 is opened inside the transverse tube 221 at a position corresponding to the plug disc 303, a plurality of side holes 305 are opened at equal angles along the circumferential direction at a position of the outer curved surface of the transverse tube 221 located inside the flared seat 217, a stop plate 306 is symmetrically and slidably installed inside the flared seat 217, a compression spring 307 is installed in the middle of the side end surface of the stop plate 306, and a plurality of grooves 308 are opened at equal angles along the circumferential direction on the outer curved surface of the stop plate 306; A strip plate 309 is slidably installed inside the strip box 215, and a pin 310 is installed at the position of the strip plate 309 corresponding to the position of the plug 216. A flower plate 311 is slidably installed inside the plug 216. The original length of the compression spring 307 is greater than twice the sliding distance of the stop plate 306. The minimum distance between the stop plate 306 and the end surface of the expansion seat 217 is less than the distance between the valve housing 301 and the side hole 305. The distance between the strip plate 309 and the bottom end of the strip box 215 is less than the length of the plug 216. The minimum distance between the flower plate 311 and the end of the plug 216 is less than the pin 310. The end face of the strip box 215 is far from the length of the insert tube 216, and an air valve 3091 is embedded and installed. The position between the air valve 3091 and the strip plate 309 inside the strip box 215 is filled with clean air to improve the flexibility of the use of the opener. The end of the insert tube 216 is provided with a plurality of convex blocks 312 at equal angles along the circumferential direction. The end face of the expansion seat 217 is provided with a screw rod 313 through a thread at a position close to one side of the base 1. A tooth plate 314 is installed at the end of the screw rod 313. A clamping tube 315 is embedded and connected in the middle of the top of a tooth plate 314. A negative pressure ball 316 is installed at one end of the clamping tube 315, and a pinching ball 317 is installed at the other end of the negative pressure ball 316. Check valves 318 are installed at both ends of the pinching ball 317 at positions corresponding to the clamping tube 315. A tooth pad 3141 is embedded and bonded to the end surface of the tooth plate 314. The cross section of the tooth pad 3141 matches the arc of the human oral teeth. The check valves 318 at both ends of the pinching ball 317 are respectively a liquid inlet check valve and a liquid outlet check valve, and the pinching ball 317 is connected to the clamping tube 315 through the liquid inlet check valve. The negative pressure ball 316 is a hollow mesh structure for saliva cleaning; Connecting pipes 319 are installed on both sides of the top end of the top box 218, on both sides of the bottom end of the bottom box 219 and on both sides of the outer curved surface of the cylinder 223. A flat box 320 is installed at the end of the connecting pipe 319. A sealing bolt 321 is installed at the end surface of the flat box 320 corresponding to the position of the connecting pipe 319 through threaded embedding. The spaces on both sides of the ring plug 220 in the inner cavities of the top box 218 and the bottom box 219 are connected with the flat box 320 through the connecting pipe 319, and the spaces on both sides of the sealing ring 224 in the inner cavity of the cylinder 223 are connected with the flat box 320 through the connecting pipe 319. The length of the sealing bolt 321 is greater than the thickness of the flat box 320, and the end of the sealing bolt 321 fits with the connecting pipe 319 to fine-tune and correct the initial state of the opener.

[0023] The working principle and use process of the present invention: before the actual use of the multifunctional detachable mouth opener for oral orthodontics, firstly, the corresponding components of the mouth opener are selected and assembled according to the use situation, that is, according to the patient's condition needs, so as to provide local support and overall support to the patient's lips, teeth and cheeks, and can adsorb and clean saliva, so as to take into account the different needs of doctor's observation diagnosis and rehabilitation training. The following will be mainly explained with overall support as the main body, and the corresponding accessories can be removed on the basis of overall support to meet the needs of different patients; First, take out the main body composed of the base 1, the rotating arm 2, the suspension 3 and the clamp arm 4, then take out the flared seat 217, align the insert tube 216 with the opening on the strip box 215, rotate the insert tube 216, screw the insert tube 216 into the strip box 215, and sequentially connect the two flared seats 217 to the two strip boxes 215 stably. In this process, as the insert tube 216 is screwed into the strip box 215, it will press the strip plate 309, forcing the strip plate 309 to squeeze the air on the other side and slide inside the strip box 215. At the same time, the ejector pin 310 will also press the flower plate 311, forcing the flower plate 311 to slide inside the insert tube 216, opening the air flow path between the strip box 215 and the flared seat 217. It should be noted here that before use, it should be ensured that the air pressure between the strip plate 309 and the air valve 3091 inside the strip box 215 is greater than the air pressure on the other side of the strip plate 309, so as to ensure the assembly stability of the flared seat 217. Then, align the cross tube 221 on the top box 218 with the opening on the top expansion seat 217, align the cross tube 221 on the bottom box 219 with the opening on the bottom expansion seat 217, and rotate the cross tube 221 to install the top box 218 and the bottom box 219 on the two expansion seats 217 respectively. Here, you can also install them in reverse according to your habit of holding the clamp arm 4. You only need to ensure that two top boxes 218 are installed on one expansion seat 217 at the same time, and the other expansion seat 217 is installed on the bottom of the expansion seat 217. Two bottom boxes 219 are installed on the top at the same time. When the cross tube 221 is screwed into the expansion seat 217, the cross tube 221 presses the stopper plate 306, forcing the two stopper plates 306 to overcome the elastic force of the compression spring 307 and approach each other, so that the side hole 305 is connected with the inner cavity of the expansion seat 217. Then, the driving bolt 302 is rotated to drive the plug plate 303 to slide along the column cavity 304, opening the air flow path between the inner cavity of the top box 218 and the bottom box 219 and the two expansion seats 217. Then, take out the tooth plate 314, align the screw rod 313 with the hole on the flaring seat 217, rotate the screw rod 313, screw it into the flaring seat 217, install the tooth plate 314 that can be installed with the clamping tube 315 on the bottom flaring seat 217, install another tooth plate 314 on the top flaring seat 217, and take out the clamping tube 315, clamp the clamping tube 315 on the tooth plate 314 at the bottom, and by adjusting the depth of the screw rod 313 screwed into the flaring seat 217, the distance between the tooth plate 314 and the flaring seat 217 can be limited to adapt to the individual differences of patients, and finally, the tooth pad 3141 is attached to the concave part of the tooth plate 314, and the overall assembly of the flare is completed. It only needs to be adjusted before the first use, and it can be officially put into use; The sealing bolt 321 is rotated to unscrew the end of the sealing bolt 321 out of the connecting pipe 319, and the flow passage of the connecting pipe 319 is opened. The clamp arm 4 is held, and the shaft tube 201 is driven to move back and forth through the suspension 3 under the limit of the rotating arm 2, forcing the piston 202 to slide back and forth on the base 1 driven by the shaft tube 201. Then, under the flow limit of the pilot valve 203, the external air will be sucked into the base 1, and then pressed into the slide cylinder 211 through the guide hole 213, and then the air flow will pass through the straight pipe 21 4 enters the strip box 215, enters the expansion seat 217 through the insertion tube 216, enters the top box 218 and the bottom box 219 through the horizontal tube 221, and enters the cylinder 223 through the vertical tube 222. Here, for the convenience of subsequent description, the air flow path is referred to as the air pressure path. Finally, under the guidance of the connecting tube 319 and the flat box 320, the air flow enters the space inside the top box 218 and the bottom box 219 located outside the horizontal tube 221 and the space inside the cylinder 223 located outside the vertical tube 222; In the initial state, the space inside the top box 218 and the bottom box 219 outside the horizontal tube 221 and the space inside the cylinder 223 outside the vertical tube 222 are filled with air, so that the expansion seat 217, the top box 218, the bottom box 219 and the tooth plate 314 are in a retracted state close to each other, so that the expander can be inserted into the patient's mouth; The aforementioned adjustment work only needs to be performed before the patient's first use, so as to fine-tune the spacing between the mouth-expanding seat 217, the top box 218, the bottom box 219 and the tooth plate 314 in the initial state, and adjust the overall initial external expansion size of the mouth-opener to adapt to the patient's oral cavity. After completing the aforementioned adjustment work, the sealing bolt 321 is rotated in the reverse direction to cut off the flow path of the connecting tube 319, so as to fix the initial state, and ensure that the mouth-expanding device will restore to the initial state under the action of air pressure without external force support, and then it can be officially put into use; When using the expander, first hold the clamp arm 4. During this process, two fingers should be inserted into the holes at the ends of the clamp arm 4 respectively, so that one finger can be aligned and pressed at any time to plug 208. According to personal habits, the holding method of the clamp arm 4 is adaptively adjusted. Then, the plug 208 is pressed, and the air inside the air cavity 206 will flow out through the gap between the plug 208 and the air cavity 206. Under the conduction of the shaft tube 201, the conduit 204 and the guide hole 213, the air inside the base 1 will also flow out accordingly, and the air filled into the top box 218, the bottom box 219 and the cylinder 223 through the aforementioned air pressure passage will also flow out accordingly; Since the flow path of the connecting pipe 319 has been cut off, the space outside the horizontal pipe 221 inside the top box 218 and the bottom box 219 and the air outside the vertical pipe 222 inside the cylinder 223 will be retained accordingly, and a pressure difference will be formed between the ring plug 220 and the sealing ring 224, so that the expander will eventually return to its initial state under the action of air pressure; Then, stop pressing the plug 208, so that the plug 208 is reset under the drive of the spring 209, and the gap between the air cavity 206 and the plug 208 is blocked again. After the arc-shaped part on the expansion seat 217 is sent into the patient's mouth and the patient bites the tooth pad 3141 on the tooth plate 314, the forceps arm 4 is reciprocated again to extract external air, and the air is filled into the top box 218, the bottom box 219 and the cylinder 223 through the aforementioned air pressure passage, forcing the ring plug 220 and the sealing ring 224 to overcome the pressure on the other side under the action of air pressure and slide accordingly, gradually increasing the distance between the expansion seat 217, the top box 218, the bottom box 219 and the tooth plate 314, so that the overall size of the expander expands outward; During this process, the parts of the mouth expander 217, the top box 218 and the bottom box 219 that are inserted into the patient's mouth will give elastic support to the patient's lips, the cheek plate 5 will give elastic support to the patient's cheeks, and the tooth plate 314 will give elastic support to the patient's teeth, thereby expanding the patient's mouth in the process of the overall size of the mouth expander expanding outwards; At the same time, under the conduction of the guide hole 213, the shaft tube 201 and the catheter 204, the air drawn into the base 1 will also be synchronously sent into the air cavity 206, forcing the block 205 to push the finger pressure head 207 against the doctor's finger under the action of air pressure, and the block 205 drives the finger pressure head 207 to squeeze the doctor's finger under the action of the same air pressure, which can help the doctor to feel the support strength of the patient's oral cavity more intuitively. With the indication of the barometer 210, the support strength of the patient's oral cavity can be accurately controlled, and can be adjusted steplessly according to actual needs, while adapting to different mouth sizes, avoiding strain on the patient's oral surrounding muscles; The aforementioned process is the process of stretching the patient's mouth and providing overall support. The aforementioned installation and adjustment process only needs to be performed during the first use. Subsequently, the top box 218, the bottom box 219 and the cylinder 223 can be inflated by squeezing the clamp arm 4, and the plug 208 can be pressed to release the air. The support strength of the oral cavity and the stretching size of the patient's mouth can be controlled by regulating the air pressure. During the doctor's observation and diagnosis process, if only the patient's teeth need to be supported and the patient's mouth needs to be opened, the top box 218 and the bottom box 219 can be selected not to be assembled in the aforementioned assembly stage, and the patient's mouth can be opened only by the expansion seat 217 and the tooth plate 314. In addition, the strip box 215 is rotatably connected to the expansion seat 217 through the insertion tube 216. During this process, the base 1, the rotating arm 2, the suspension 3, and the clamp arm 4 can be deflected to one side for easier observation. Similarly, during the rehabilitation training process, only the patient's teeth need to be supported, and the top box 218 and the bottom box 219 can be selected not to be assembled. By regulating the air pressure, the support strength of the mouth can be steplessly regulated to meet the different strength requirements during passive stretching training and active strength training. If the patient's lips need to be fully opened during the diagnosis and treatment process, the top box 218 and the bottom box 219 can be installed in the aforementioned assembly stage. At the same time, in order to further increase the observation and operation space, after the air pressure adjustment is completed, the cannula 216 can be rotated in the opposite direction, and the strip box 215 can be separated from the top box 218 and the bottom box 219 to remove the base 1, the rotating arm 2, the suspension 3, the clamp arm 4 and the strip box 215, thereby expanding the observation space and the hand operation space; When there is a need to clean saliva, the pinching ball 317 can be squeezed back and forth. Under the flow limiting guidance of the check valve 318, negative pressure will be formed at the negative pressure ball 316, forcing the saliva to enter the clamping tube 315 after being filtered by the negative pressure ball 316, and then pass through the liquid inlet one-way valve in the check valve 318 to enter the pinching ball 317, and then be discharged through the liquid outlet one-way valve in the check valve 318. During the assembly stage, when there is a need to clean saliva, an external liquid storage bag can be put on the end of the liquid outlet one-way valve in the check valve 318. When there is no need to clean saliva, the clamping tube 315 can be selected not to be assembled during the assembly stage; During the disassembly and assembly process, when there is no supporting force provided by the insert tube 216, the strip plate 309 will fit with the strip box 215 under the action of air pressure, connecting the connecting port between the strip box 215 and the insert tube 216. When there is no supporting force provided by the cross tube 221, the stop plate 306 will fit with the openings on both sides of the expansion seat 217 under the elastic force of the compression spring 307. In addition, the on-off function of the plug plate 303 and the column cavity 304 can keep the internal airflow unblocked when the components are assembled, and ensure the relative independence of the air medium inside the components when disassembling, so that the present opener can retain the elastic supporting force in an incompletely assembled state.

[0024] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional detachable mouth opener for orthodontics, comprising a base (1), characterized in that: The top and bottom middle parts of the base (1) are both hingedly connected to a rotating arm (2), the end of the rotating arm (2) is hingedly connected to a suspension (3), the end of the rotating arm (2) is hingedly connected to a clamp arm (4) at a position outside the suspension (3), and the end surface of the suspension (3) is equipped with a sympathetic expansion mechanism (200); The sympathetic expansion mechanism (200) comprises a shaft tube (201); An end surface of one side of the base (1) is embedded with a shaft tube (201) slidably mounted, a piston (202) is slidably mounted inside the base (1), a pilot valve (203) is embedded in the middle of the end surface of the other side of the base (1), a pressure gauge (210) is embedded in one side of the top end of the base (1), a guide tube (204) is mounted at the end of the shaft tube (201), a blocking block (205) is embedded in one end of the clamp arm (4) slidably mounted, an air cavity (206) is provided inside the clamp arm (4) at a position corresponding to the blocking block (205), a finger pressure head (207) is mounted in the middle of the side end surface of the blocking block (205), a blocking block (208) is embedded in the side end surface of the air cavity (206) near the position of the blocking block (205), and a spring (209) is mounted at the end of the blocking block (208); A slide cylinder (211) is embedded and installed at the top of the base body (1), and straight tubes (214) are embedded and slidably installed at both ends of the slide cylinder (211), and a plug ring (212) is installed at the end of the straight tube (214) located inside the slide cylinder (211), and guide holes (213) are opened in the middle of the side end surfaces of the slide cylinder (211) and the piston (202), and a bar box (215) is installed at the other end of the straight tube (214), and a plug tube (216) is installed on the other side of the bottom end of the bar box (215) through a thread, and a flaring seat (217) is rotatably installed at the end of the plug tube (216); A top box (218) is installed on both sides of one of the flared seats (217), and a bottom box (219) is installed on both sides of the other flared seat (217). Ring plugs (220) are slidably installed inside the top box (218) and the bottom box (219), and a horizontal tube (221) is installed at the end of the ring plug (220). A vertical tube (222) is installed on one side of the bottom end of the top box (218), and a cylinder (223) is installed on one side of the top end of the bottom box (219). A sealing ring (224) is installed at a position inside the cylinder (223) at the end of the vertical tube (222).

2. A multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that: The guide valve (203) is a one-way valve, the air cavity (206) is connected to the shaft tube (201) through the guide tube (204), the shaft tube (201) and the slide cylinder (211) are both connected to the inner cavity of the base (1) through the guide hole (213), the longitudinal section of the plug (208) is I-shaped, and the original length of the spring (209) is greater than the thickness of the air cavity (206).

3. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that: A cheek plate (5) is installed at the corner of the arc-shaped portion of the top box (218), and the arc-shaped portions of the top box (218) and the bottom box (219) and the cheek plate (5) all fit the arc of the human oral cavity.

4. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that: The top box (218) and the bottom box (219) are both sealed and slidably connected to the transverse tube (221), and the end of the transverse tube (221) is connected to the expansion seat (217) via a thread.

5. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that: The interior of the top box (218) and the bottom box (219) at a position outside the horizontal tube (221) and the interior of the cylinder (223) at a position outside the vertical tube (222) are filled with clean air.

6. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that: The sealing ring (224) is slidably connected to the cylinder (223), and the cylinder (223) and the sealing ring (224) fit together. The slidable distance of the sealing ring (224) is the same as the slidable distance of the plug ring (212).

7. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that: A segmented splicing mechanism (300) is installed on the outside of the valve housing (301), and the segmented splicing mechanism (300) comprises a valve housing (301); A valve housing (301) is installed at a position of the outer curved surface of the transverse tube (221) close to the expansion seat (217); a driving bolt (302) is installed at the top of the outer curved surface of the valve housing (301) through thread embedding; a plug disc (303) is installed at the end of the driving bolt (302); a column cavity (304) is opened inside the transverse tube (221) at a position corresponding to the plug disc (303); a plurality of side holes (305) are opened at equal angles along the circumferential direction at a position inside the expansion seat (217); a flow stop plate (306) is symmetrically slidably installed inside the expansion seat (217); a compression spring (307) is installed in the middle of the side end surface of the flow stop plate (306); and a plurality of grooves (308) are opened at equal angles along the circumferential direction on the outer curved surface of the flow stop plate (306); A strip plate (309) is slidably mounted inside the strip box (215), a pin (310) is mounted on the end surface of the strip plate (309) at a position corresponding to the insertion tube (216), a flower plate (311) is slidably mounted inside the insertion tube (216), a plurality of protrusions (312) are mounted at equal angles along the circumferential direction at the end of the insertion tube (216), a screw rod (313) is threadedly mounted at a position close to one side of the base (1) on the end surface of the flaring seat (217), a tooth plate (314) is mounted on the end of the screw rod (313), and a clamping tube (315) is embedded and clamped in the middle of the top end of the tooth plate (314); A negative pressure ball (316) is installed at one end of the clamping tube (315), and a pinching ball (317) is installed at the other end of the negative pressure ball (316). Check valves (318) are installed at both ends of the pinching ball (317) at positions corresponding to the clamping tube (315). Connecting tubes (319) are installed at both sides of the top end of the top box (218), both sides of the bottom end of the bottom box (219), and both sides of the outer curved surface of the cylinder (223). A flat box (320) is installed at the end of the connecting tube (319). A sealing bolt (321) is installed at a position corresponding to the connecting tube (319) on the end surface of the flat box (320) through threaded embedding.

8. The multifunctional detachable mouth opener for orthodontics according to claim 7, characterized in that: The original length of the compression spring (307) is greater than twice the sliding distance of the stop plate (306); the minimum distance between the stop plate (306) and the end surface of the expansion seat (217) is less than the distance between the valve housing (301) and the side hole (305); the distance between the strip plate (309) and the bottom end of the strip box (215) is less than the length of the insert tube (216); the minimum distance between the flower plate (311) and the end of the insert tube (216) is less than the length of the ejector pin (310); an air valve (3091) is embedded and installed at a position on the end surface of the strip box (215) away from the length of the insert tube (216); and the interior of the strip box (215) is filled with clean air at a position between the air valve (3091) and the strip plate (309).

9. The multifunctional detachable mouth opener for orthodontics according to claim 7, characterized in that: The tooth plate (314) has a tooth pad (3141) embedded and bonded on its end surface. The cross section of the tooth pad (3141) matches the arc of a human oral tooth. The check valves (318) at both ends of the pinching ball (317) are respectively a liquid inlet check valve and a liquid outlet check valve. The pinching ball (317) is connected to the clamping tube (315) via the liquid inlet check valve. The negative pressure ball (316) is a hollow mesh structure.

10. The multifunctional detachable mouth opener for orthodontics according to claim 7, characterized in that: The spaces in the inner cavities of the top box (218) and the bottom box (219) located on both sides of the ring plug (220) are communicated with the flat box (320) via a connecting tube (319); the spaces in the inner cavities of the cylinder (223) located on both sides of the sealing ring (224) are communicated with the flat box (320) via a connecting tube (319); the length of the sealing bolt (321) is greater than the thickness of the flat box (320), and the end of the sealing bolt (321) fits in with the connecting tube (319).

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