Oral cavity disinfection device for forward-inclined dental chair

Abstract

The invention discloses an oral cavity disinfection device for a forward-inclined dental chair, and relates to the technical field of medical instruments, the oral cavity disinfection device comprises a dental chair main body, a cleaning mechanism is arranged on the dental chair main body, the cleaning mechanism comprises a liquid injection handle, the liquid injection handle is clamped on the dental chair main body, and a conveying pipe is arranged on the end surface of the liquid injection handle in a communicating manner. The other end of the conveying pipe is communicated with a connector; the connector comprises a connecting base, and two sliding frames are arranged on the connecting base in a collinear, reverse and sliding mode. According to the oral cavity disinfection device for the forward-inclined dental chair, the liquid injection handle is matched with the cleaning pieces on the two sliding frames, so that the effect of spraying a disinfectant to the oral cavity of a patient is achieved; in addition, the effects of simultaneously cleaning the inside and outside of the oral cavity of the patient and cleaning broken surfaces of teeth are achieved, so that the disinfection and cleaning effects of the oral cavity disinfection device on the oral cavity of the patient are improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to an oral disinfection device for a forward-leaning dental chair. Background Art

[0002] The dental chair is a device used for oral surgery and examination and treatment of oral diseases. In the field of dentistry, in order to prevent infection, promote wound healing, protect the health of patients and medical staff, and ensure the effectiveness of treatment, an oral disinfection device is needed to disinfect and clean the patient's mouth.

[0003] However, the existing oral disinfection device simply uses a toothbrush to clean or uses a disinfection cotton swab to disinfect and clean the outside of the teeth, but cannot disinfect and clean the inside of the teeth at the same time. In addition, the existing oral disinfection device can only clean intact teeth. Therefore, once there is a problem of partial tooth loss or tooth fracture, the broken surface of the tooth cannot be effectively cleaned and disinfected, thereby reducing the disinfection and cleaning effect of the oral disinfection device on the patient's oral cavity to a certain extent. Summary of the invention

[0004] The object of the present invention is to provide an oral disinfection device for a forward-leaning dental chair to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oral disinfection device for a forward-leaning dental chair, comprising a dental chair body, a cleaning mechanism being arranged on the dental chair body, the cleaning mechanism comprising a liquid injection handle, which is clamped on the dental chair body, a delivery tube being connectedly arranged on the end surface of the liquid injection handle, and a connecting head being connectedly arranged on the other end of the delivery tube; the connecting head comprises a connecting seat, two sliding frames being arranged on the connecting seat for colinear reverse sliding, a first cleaning member being arranged on each side of the two sliding frames close to each other, and being rotatably arranged on the sliding frame by a driving assembly; a spray member is also fixedly installed on the side of the two sliding frames close to each other, and the spray member is connected to the delivery tube through a hose.

[0006] Furthermore, the dental chair body comprises a base, a seat is fixedly mounted on the base, a backrest is rotatably arranged on the seat, and a headrest is also arranged on the top surface of the backrest.

[0007] Furthermore, a rotating table is rotatably arranged on the base, a rotating table is rotatably arranged on the top surface of the rotating table, a placement seat and a wash basin are fixedly installed on the top surface of the rotating table, and the injection handle is arranged on the placement seat.

[0008] Furthermore, the injection handle includes a shell, an injection tube is fixedly installed inside the shell, a piston is arranged inside the injection tube, and the piston is driven by a driving unit and slidably arranged in the injection tube; a first connecting tube is connected to the end surface of the injection tube and is connected to the delivery tube through a connecting component.

[0009] Furthermore, the driving unit comprises a cylinder, and a connecting portion is fixedly mounted on the output end of the cylinder; a movable rod is slidably inserted on the injection tube, and both ends of the movable rod are fixedly mounted on the connecting portion and the piston respectively.

[0010] Furthermore, the sliding frame comprises a frame, and a partition is fixedly installed inside the frame, and the partition divides the sliding frame into a first chamber and a second chamber.

[0011] Furthermore, the driving assembly includes a dual-axis motor fixedly mounted on the connecting seat, an output shaft is fixedly mounted on the output end of the dual-axis motor, a first sleeve is axially slidably arranged on the circumference of the output shaft, the first sleeve is rotatably arranged in the first chamber, and a first pulley is fixedly mounted on the circumference of the first sleeve; two second sleeves are also rotatably arranged inside the first chamber, second pulleys are fixedly mounted on the circumferences of the two second sleeves, and the first pulley and the two second pulleys are connected via a linkage belt transmission; a first sliding rod is slidably arranged inside the second sleeve, a first spring is arranged between the first sliding rod and the partition, and one end of the first sliding rod is fixedly mounted on the first cleaning piece.

[0012] Furthermore, the drive assembly also includes a first gear fixedly mounted on the second sleeve; a rotating shaft is rotatably arranged inside the first chamber, and a transmission gear meshing with the first gear is fixedly mounted on the circumferential surface of the rotating shaft; a third sleeve is also rotatably arranged inside the first chamber, and a second gear meshing with the transmission gear is fixedly mounted on the circumferential surface of the third sleeve, a second slide rod is slidably arranged inside the third sleeve, and a second cleaning piece is fixedly mounted on one end of the second slide rod.

[0013] Furthermore, a rotating ring is rotatably arranged on the circumferential surface of the shell, a display screen is fixedly mounted on the rotating ring, and a camera matching with the display screen is arranged on the connecting seat.

[0014] In the above technical solution, the present invention provides an oral disinfection device for a forward-leaning dental chair, which has the following beneficial effects: 1. By using the injection handle, the disinfectant can be transported along the delivery tube under the action of the injection handle, so that the disinfectant can be transported to the spray part, and then the disinfectant is sprayed into the patient's oral cavity with the help of the spray part, thereby achieving the effect of disinfecting the patient's oral cavity.

[0015] 2. By sleeved the two sliding frames on the inner and outer surfaces of the patient's teeth, the first cleaning parts on the two sliding frames can slide along the inside and outside of the teeth, thereby achieving the effect of cleaning the inside and outside of the patient's mouth at the same time.

[0016] 3. By utilizing the first cleaning pieces on the two sliding frames, the cleaning pieces can be brought into full contact with the fractured positions of the teeth according to the fractured positions of the teeth, thereby ensuring that the first cleaning pieces can clean the fractured surfaces of the teeth.

[0017] Therefore, by utilizing the mutual cooperation between the injection handle and the cleaning parts on the two sliding frames, not only can the disinfectant be sprayed on the patient's mouth, but it can also simultaneously clean the inside and outside of the patient's mouth and the fracture surface of the teeth, thereby improving the disinfection and cleaning effect of the oral disinfection device on the patient's mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 The embodiment of the present invention provides Figure 1 A schematic diagram of the three-dimensional structure of the cleaning mechanism; Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the planar structure; Figure 4 The embodiment of the present invention provides Figure 3 Schematic diagram of the cross-sectional structure along the AA direction; Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the local plane structure; Figure 6 The embodiment of the present invention provides Figure 5 The structural diagram at A in the middle; Figure 7 The embodiment of the present invention provides Figure 1 Schematic diagram of the three-dimensional structure of the middle connector; Figure 8 The embodiment of the present invention provides Figure 7 A schematic diagram of a partially disassembled three-dimensional structure; Fig. 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the structure at B in the middle; Fig.10 The embodiment of the present invention provides Figure 7 Schematic diagram of the planar structure; Fig.11 The embodiment of the present invention provides Fig.10 Schematic diagram of the cross-sectional structure.

[0020] Description of reference numerals: 1. Dental chair body; 11. Base; 21. Seat; 22. Backrest; 23. Headrest; 3. Rotating table; 41. Rotating table; 42. Placement seat; 43. Wash basin; 5. Cleaning mechanism; 51. Filling handle; 511. Shell; 5111. Filling tube; 5112. Sealing plug; 5113. Rotating ring; 5114. Display screen; 512. Filling tube; 513. First connecting tube; 514. Piston; 515. Cylinder; 516. Connecting part; 517. Movable rod; 52. Connecting head; 521. Connecting seat; 522. Sliding frame; 5221. Frame; 5222. Partition; 5223. First chamber; 5224. Second chamber; 523. First cleaning part; 524. Second Cleaning part; 525, spray part; 53, conveying pipe; 531, second connecting pipe; 6, driving assembly; 601, dual-axis motor; 602, output shaft; 603, first sleeve; 604, first pulley; 605, second sleeve; 606, second pulley; 607, linkage belt; 608, first slide bar; 609, first spring; 610, limit plate; 611, first gear; 612, rotating shaft; 613, transmission gear; 614, third sleeve; 615, second gear; 7, connecting assembly; 71, second spring; 72, first sealing ball; 73, third spring; 74, second sealing ball; 75, threaded cylinder; 76, extrusion cylinder; 761, raised portion; 762, sealing ring. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] See also Figure 1-11An oral disinfection device for a forward-leaning dental chair provided in an embodiment of the present invention comprises a dental chair body 1, on which a cleaning mechanism 5 is arranged, the cleaning mechanism 5 comprises a liquid injection handle 51, which is clamped and arranged on the dental chair body 1, and a delivery tube 53 is connected and arranged on the end surface of the liquid injection handle 51, and a connecting head 52 is connected and arranged on the other end of the delivery tube 53; the connecting head 52 comprises a connecting seat 521, on which two sliding frames 522 are arranged on the connecting seat 521 for colinear reverse sliding, and a first cleaning member 523 is arranged on the side of the two sliding frames 522 close to each other, which is rotatably arranged on the sliding frame 522 through a driving component 6; a spray member 525 is also fixedly installed on the side of the two sliding frames 522 close to each other, and the spray member 525 is connected to the delivery tube 53 through a hose.

[0023] In the above technical solution, by using the injection handle 51, the disinfectant can be transported along the delivery tube 53 under the action of the injection handle 51, so that the disinfectant can be transported to the spray part 525, and then the disinfectant is sprayed into the patient's oral cavity with the help of the spray part 525, so as to achieve the effect of disinfecting the patient's oral cavity; by sleeves of the two sliding frames 522 on the inner and outer surfaces of the patient's teeth, the first cleaning members 523 on the two sliding frames 522 can slide along the inner and outer surfaces of the teeth, so as to achieve the effect of cleaning the inside and outside of the patient's oral cavity at the same time; by using the first cleaning members 523 on the two sliding frames 522, when cleaning the patient's teeth, the cleaning members can be fully contacted with the broken positions of the teeth according to the broken positions of the patient's teeth, so as to ensure that the first cleaning members 523 can clean the broken surfaces of the teeth; therefore, by using the mutual cooperation between the injection handle 51 and the cleaning members on the two sliding frames 522, not only the effect of spraying the disinfectant on the patient's oral cavity is achieved, but also the effect of cleaning the inside and outside of the patient's oral cavity at the same time is achieved, thereby improving the disinfection and cleaning effect of the patient's oral cavity.

[0024] As a preferred technical solution of this embodiment, two electric push rods are fixedly mounted on the connecting seat 521, and the two sliding frames 522 are respectively fixedly mounted on the output ends of the two electric push rods.

[0025] By utilizing the electric push rod, the distance between the two sliding frames 522 can be adjusted, so that the first cleaning members 523 on the two sliding frames 522 can effectively abut against both surfaces of the inner and outer teeth of the patient.

[0026] Specifically, the dental chair body 1 includes a base 11 , on which a seat 21 is fixedly mounted, on which a backrest 22 is rotatably arranged, and on the top surface of the backrest 22 a headrest 23 is also arranged.

[0027] Furthermore, a rotating table 3 is rotatably provided on the base 11 , a rotating table 41 is rotatably provided on the top surface of the rotating table 3 , a placement seat 42 and a wash basin 43 are fixedly installed on the top surface of the rotating table 41 , and a liquid injection handle 51 is provided on the placement seat 42 .

[0028] In the above technical solution, by adjusting the patient's sitting posture, after the patient sits on the seat 21, he can lean his chest against the backrest 22 and his face on the headrest 23. Then, by rotating the placement seat 42 and the washbasin 43 on the rotating table 3, the dental chair can be placed forward for the patient, thereby avoiding the situation in the prior art where the patient lies on his back on the medical bed for surgery, which may cause foreign objects to be accidentally swallowed into the throat.

[0029] Specifically, the injection handle 51 includes a shell 511, and a liquid injection tube 512 is fixedly installed inside the shell 511. A piston 514 is arranged inside the liquid injection tube 512. The piston 514 is driven by a driving unit and is slidably arranged in the liquid injection tube 512; a first connecting tube 513 is connected to the end surface of the liquid injection tube 512, and the first connecting tube 513 is connected to the delivery tube 53 through a connecting component 7.

[0030] Furthermore, the driving unit includes a cylinder 515 , and a connecting portion 516 is fixedly installed on the output end of the cylinder 515 ; a movable rod 517 is slidably inserted on the injection tube 512 , and both ends of the movable rod 517 are fixedly installed on the connecting portion 516 and the piston 514 respectively.

[0031] Furthermore, a liquid adding tube 5111 is fixedly installed on the outer shell 511 , the bottom end of the liquid adding tube 5111 is connected to the liquid injection tube 512 , and a sealing plug 5112 is clamped on the end surface of the other end.

[0032] In the above technical solution, by utilizing the cylinder 515, the piston 514 in the injection tube 512 can slide along the axial direction of the injection tube 512 under the action of the cylinder 515, thereby pushing the disinfectant in the injection tube 512, so that the disinfectant can flow along the delivery tube 53 and the hose to the spray part 525, thereby enabling the spray part 525 to spray and disinfect the patient's oral cavity; and by utilizing the liquid adding tube 5111 and the sealing plug 5112, when the disinfectant in the injection tube 512 is used up, disinfectant can be added to the injection tube 512.

[0033] As a preferred technical solution for this embodiment, the connecting component 7 includes a first sealing ball 72 movably arranged in the first connecting tube 513, a second spring 71 is arranged between the first sealing ball 72 and the first connecting tube 513, the connecting component 7 also includes a second connecting tube 531 connected to the conveying tube 53, a second sealing ball 74 is movably arranged inside the second connecting tube 531, a third spring 73 is arranged between the second sealing ball 74 and the second connecting tube 531, a threaded cylinder 75 is rotatably arranged on the second connecting tube 531, the threaded cylinder 75 is threadedly connected to the first connecting tube 513, and an extrusion cylinder 76 is slidably arranged inside the threaded cylinder 75, and the two ends of the extrusion cylinder 76 are movably abutted against the first sealing ball 72 and the second sealing ball 74 respectively.

[0034] Furthermore, a protrusion 761 is fixedly mounted on an end surface of the extrusion cylinder 76 close to the second sealing ball 74 .

[0035] Furthermore, a sealing ring 762 is fixedly mounted on the middle end surface of the extrusion cylinder 76 .

[0036] In the above technical scheme, by utilizing the threaded barrel 75 threadedly connected to the first connecting tube 513, by rotating the threaded barrel 75, the two ends of the extrusion barrel 76 on the threaded barrel 75 can squeeze the first sealing ball 72 in the first connecting tube 513 and the second sealing ball 74 in the second connecting tube 531, so that the first connecting tube 513 on the injection handle 51 and the second connecting tube 531 on the delivery tube 53 can be connected, thereby facilitating the disassembly and cleaning of the delivery tube 53 and the connector 52 on the delivery tube 53, thereby avoiding cross infection as much as possible; and by utilizing the raised portion 761, the sliding of the extrusion barrel 76 can be restricted, thereby avoiding the extrusion barrel 76 from sliding off the threaded barrel 75 as much as possible; and by utilizing the sealing ring 762, the sealing between the first connecting tube 513 and the connecting portion 516 of the threaded barrel 75 can be increased.

[0037] Specifically, the sliding frame 522 includes a frame 5221 , and a partition plate 5222 is fixedly installed inside the frame 5221 . The partition plate 5222 divides the sliding frame 522 into a first chamber 5223 and a second chamber 5224 .

[0038] Furthermore, the driving assembly 6 includes a dual-axis motor 601 fixedly mounted on the connecting seat 521, an output shaft 602 is fixedly mounted on the output end of the dual-axis motor 601, a first sleeve 603 is axially slidably arranged on the circumference of the output shaft 602, the first sleeve 603 is rotatably arranged in the first chamber 5223, and a first pulley 604 is fixedly mounted on the circumference of the first sleeve 603; two second sleeves 605 are also rotatably arranged inside the first chamber 5223, second pulleys 606 are fixedly mounted on the circumferences of the two second sleeves 605, and the first pulley 604 and the two second pulleys 606 are connected by a linkage belt 607; a first slide bar 608 is slidably arranged inside the second sleeve 605, a first spring 609 is arranged between the first slide bar 608 and the partition 5222, and one end of the first slide bar 608 is fixedly mounted on the first cleaning piece 523.

[0039] In the above technical solution, by utilizing the dual-axis motor 601, the first pulley 604 in the first chamber 5223 of the two sliding frames 522 can be rotated under the action of the dual-axis motor 601. Therefore, by utilizing the transmission between the first pulley 604, the two second pulleys 606 and the linkage belt 607, the two second sleeves 605 in the first chamber 5223 are rotated, thereby driving the first cleaning piece 523 on the first slide bar 608 to rotate; and when the first cleaning piece 523 moves along the patient's teeth, when encountering the fracture surface of the patient's teeth, by utilizing the first spring 609, the first cleaning piece 523 on the first slide bar 608 can slide along the second sleeve 605 under the action of the first spring 609, so that the first cleaning piece 523 can effectively contact the fracture surface of the patient's teeth, thereby achieving the effect of facilitating the disinfection and cleaning of the fracture surface of the patient's teeth.

[0040] Specifically, the driving assembly 6 also includes a first gear 611 fixedly mounted on the second sleeve 605; a rotating shaft 612 is rotatably arranged inside the first chamber 5223, and a transmission gear 613 meshing with the first gear 611 is fixedly mounted on the circumferential surface of the rotating shaft 612; a third sleeve 614 is also rotatably arranged inside the first chamber 5223, and a second gear 615 meshing with the transmission gear 613 is fixedly mounted on the circumferential surface of the third sleeve 614, and a second slide rod is slidably arranged inside the third sleeve 614, and a second cleaning piece 524 is fixedly mounted on one end of the second slide rod.

[0041] Furthermore, a limiting plate 610 is fixedly mounted on the same end surface of the first sliding rod 608 and the second sliding rod, and both ends of the first spring 609 are fixedly mounted on the partition plate 5222 and the limiting plate 610 respectively.

[0042] In the above technical solution, by utilizing the transmission gear 613 on the rotating shaft 612, when the second pulleys 606 on the two second sleeves 605 rotate, the transmission between the first gear 611, the transmission gear 613 and the second gear 615 is utilized, so that the second cleaning piece 524 on the sliding frame 522 rotates, thereby increasing the number of cleaning pieces, thereby improving the disinfection and cleaning effect on the patient's oral cavity.

[0043] Specifically, a rotating ring 5113 is rotatably provided on the circumference of the housing 511 , a display screen 5114 is fixedly mounted on the rotating ring 5113 , and a camera matched with the display screen 5114 is provided on the connecting seat 521 .

[0044] In the above technical solution, by utilizing the display screen 5114 on the rotating ring 5113 and the setting head on the connecting head 52, the inside of the patient's mouth can be illuminated, thereby facilitating the dentist to observe the inside of the patient's mouth.

[0045] Working principle: By adjusting the patient's sitting posture, after the patient sits on the seat 21, he can lean his chest against the backrest 22 and his face on the headrest 23. Then, by rotating the placement seat 42 and the wash basin 43 on the rotating table 3, the dental chair can be placed forward for the patient. Then, the dentist uses the cleaning mechanism 5 on the connection seat 521 and the cylinder 515 in the injection handle 51 to make the piston 514 in the injection tube 512 slide along the axial direction of the injection tube 512 under the action of the cylinder 515, so as to push the disinfectant in the injection tube 512, so that the disinfectant can flow along the delivery tube 53 and the hose to the spray part 525, thereby achieving the effect of enabling the spray part 525 to spray and disinfect the patient's oral cavity; While the spraying member 525 is used to spray disinfectant on the inside of the patient's oral cavity, the dual-axis motor 601 is used to enable the first pulley 604 in the first chamber 5223 of the two sliding frames 522 to rotate under the action of the dual-axis motor 601. Therefore, by utilizing the transmission between the first pulley 604, the two second pulleys 606 and the linkage belt 607, the two second sleeves 605 in the first chamber 5223 are rotated, thereby driving the first cleaning member 523 on the first slide bar 608 to rotate; and when the first cleaning member 523 moves along the patient's teeth, when encountering the fracture surface of the patient's teeth, the first spring 609 is used to enable the first cleaning member 523 on the first slide bar 608 to slide along the second sleeve 605 under the action of the first spring 609, so that the first cleaning member 523 on the first slide bar 608 can be rotated. The cleaning piece 523 can effectively contact the fracture surface of the patient's tooth; and in order to improve the disinfection and cleaning effect of the cleaning piece on the fracture surface of the patient's tooth, by using the transmission gear 613 on the rotating shaft 612, when the second pulleys 606 on the two second sleeves 605 rotate, by using the transmission between the first gear 611, the transmission gear 613 and the second gear 615, the second cleaning piece 524 on the sliding frame 522 rotates, thereby increasing the number of cleaning pieces, thereby improving the disinfection and cleaning effect on the patient's oral cavity; and in the whole process, by using the display screen 5114 on the rotating ring 5113 and the setting head on the connecting head 52, the inside of the patient's oral cavity can be illuminated, so that the dentist can observe the inside of the patient's oral cavity conveniently; After using the cleaning mechanism 5 to clean and disinfect the patient's oral cavity, the threaded barrel 75 threadedly connected to the first connecting tube 513 is used to rotate the threaded barrel 75 so that the two ends of the extrusion barrel 76 on the threaded barrel 75 can squeeze the first sealing ball 72 in the first connecting tube 513 and the second sealing ball 74 in the second connecting tube 531, thereby enabling the first connecting tube 513 on the injection handle 51 and the second connecting tube 531 on the delivery tube 53 to be connected, thereby facilitating the disassembly and cleaning of the delivery tube 53 and the connector 52 on the delivery tube 53, thereby minimizing cross infection. The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An oral disinfection device for a forward-leaning dental chair, comprising a dental chair body (1), characterized in that: The dental chair body (1) is provided with a cleaning mechanism (5), the cleaning mechanism (5) comprising a liquid injection handle (51) which is clamped on the dental chair body (1), a delivery tube (53) being connected to the end surface of the liquid injection handle (51), and a connector (52) being connected to the other end of the delivery tube (53); The connector (52) comprises a connecting seat (521), on which two sliding frames (522) are colinearly arranged for counter-sliding movement, and a first cleaning member (523) is arranged on one side of the two sliding frames (522) close to each other and is rotatably arranged on the sliding frames (522) by a driving assembly (6); A spraying component (525) is also fixedly mounted on one side of the two sliding frames (522) that are close to each other, and the spraying component (525) is connected to the delivery pipe (53) via a hose.

2. The oral disinfection device for a forward-leaning dental chair according to claim 1, characterized in that: The dental chair body (1) comprises a base (11), a seat (21) is fixedly mounted on the base (11), a backrest (22) is rotatably arranged on the seat (21), and a headrest (23) is also arranged on the top surface of the backrest (22).

3. The oral disinfection device for a forward-leaning dental chair according to claim 2, characterized in that: A rotating table (3) is rotatably arranged on the base (11), a rotating table (41) is rotatably arranged on the top surface of the rotating table (3), a placement seat (42) and a wash basin (43) are fixedly mounted on the top surface of the rotating table (41), and the liquid injection handle (51) is arranged on the placement seat (42).

4. The oral disinfection device for a forward-leaning dental chair according to claim 3, characterized in that: The injection handle (51) comprises a shell (511), a liquid injection tube (512) is fixedly mounted inside the shell (511), a piston (514) is arranged inside the liquid injection tube (512), and the piston (514) is driven by a driving unit to slide inside the liquid injection tube (512); A first connecting pipe (513) is provided on the end surface of the liquid injection pipe (512) and is connected to the delivery pipe (53) via a connecting assembly (7).

5. The oral disinfection device for a forward-leaning dental chair according to claim 4, characterized in that: The driving unit comprises a cylinder (515), and a connecting portion (516) is fixedly mounted on the output end of the cylinder (515); A movable rod (517) is slidably inserted into the liquid injection tube (512), and two ends of the movable rod (517) are respectively fixedly mounted on the connecting portion (516) and the piston (514).

6. The oral disinfection device for a forward-leaning dental chair according to claim 1, characterized in that: The sliding frame (522) comprises a frame (5221), a partition plate (5222) being fixedly installed inside the frame (5221), and the partition plate (5222) divides the sliding frame (522) into a first chamber (5223) and a second chamber (5224).

7. The oral disinfection device for a forward-leaning dental chair according to claim 6, characterized in that: The driving assembly (6) comprises a dual-axis motor (601) fixedly mounted on the connecting seat (521); an output shaft (602) is fixedly mounted on the output end of the dual-axis motor (601); a first sleeve (603) is axially slidably arranged on the circumference of the output shaft (602); the first sleeve (603) is rotatably arranged in the first chamber (5223); and a first pulley (604) is fixedly mounted on the circumference of the first sleeve (603); Two second sleeves (605) are rotatably arranged inside the first chamber (5223), and second pulleys (606) are fixedly installed on the circumference of the two second sleeves (605). The first pulley (604) and the two second pulleys (606) are connected to each other through a linkage belt (607); A first sliding rod (608) is slidably disposed inside the second sleeve (605), a first spring (609) is disposed between the first sliding rod (608) and the partition (5222), and one end of the first sliding rod (608) is fixedly mounted on the first cleaning member (523).

8. The oral disinfection device for a forward-leaning dental chair according to claim 7, characterized in that: The driving assembly (6) further comprises a first gear (611) fixedly mounted on the second sleeve (605); A rotating shaft (612) is rotatably arranged inside the first chamber (5223), and a transmission gear (613) meshing with the first gear (611) is fixedly mounted on the circumferential surface of the rotating shaft (612); A third sleeve (614) is also rotatably arranged inside the first chamber (5223), a second gear (615) meshing with the transmission gear (613) is fixedly installed on the circumferential surface of the third sleeve (614), a second slide rod is slidably arranged inside the third sleeve (614), and a second cleaning member (524) is fixedly installed at one end of the second slide rod.

9. The oral disinfection device for a forward-leaning dental chair according to claim 4, characterized in that: A rotating ring (5113) is rotatably arranged on the circumferential surface of the housing (511), a display screen (5114) is fixedly mounted on the rotating ring (5113), and a camera that matches the display screen (5114) is arranged on the connecting seat (521).

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