CN114191243B

CN114191243B - Dental therapeutic instrument

Info

Publication number: CN114191243B
Application number: CN202111428528.5A
Authority: CN
Inventors: 王仲聚
Original assignee: Foshan Dawang Medical Technology Co ltd
Current assignee: Foshan Dawang Medical Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2024-05-28
Anticipated expiration: 2041-11-26
Also published as: CN114191243A

Abstract

The invention discloses a novel dental therapeutic instrument, which comprises an instrument table and a deck chair. The instrument table is arranged in front of the deck chair. The instrument table includes: a shell, an instrument device and a telescopic device. The rear side of the shell is provided with an opening for the instrument device to pass through, and the opening is aligned with the telescopic device in front-back direction. The telescopic device is provided with a mounting part, a telescopic end and a telescopic driving member. The installation department locates in the casing, and flexible drive member is used for driving flexible end relative installation department and removes. The instrument device is arranged at the telescopic end. The novel dental therapeutic instrument can be stored in the shell at ordinary times, so that dust pollution is avoided; when in use, the device can be arranged in the shell through the telescopic device to extend out of the opening for use. The invention can be applied to the field of dental medicine.

Description

Dental therapeutic instrument

Technical Field

The invention relates to the technical field of dental medical equipment, in particular to a dental therapeutic instrument.

Background

The traditional dental treatment chair is relatively crude, and in recent years, along with the application of a large number of new technologies, the functions of the dental treatment chair are more diversified, and various convenience such as convenience, comfort, safety and sanitation are greatly improved. The dental treatment chairs in the prior art are equipped with a plurality of treatment instruments such as spittoons, dental handpieces, grinding machines, ultrasonic tooth cleaners, dental endoscopes, root canal filling devices and the like. These therapeutic instruments all use when being used for medical personnel to treat in the both sides that patient's deck chair is set up through the cantilever, need occupy very big space always, and the transport or the transfer of the dental treatment chair of being inconvenient for also have the potential safety hazard in ordinary times medical personnel's walking for in the treatment, the near space of patient is very limited, is inconvenient for a plurality of medical personnel to operate jointly.

Disclosure of Invention

The present invention is directed to a dental treatment apparatus that solves one or more of the problems of the prior art, and at least provides a beneficial choice or creation.

The technical scheme adopted for solving the technical problems is as follows:

A dental treatment apparatus comprising: an instrument table; the instrument table includes: the device comprises a shell, an instrument device and a telescopic device, wherein an opening through which the instrument device can pass is formed in the rear side of the shell, the opening is aligned with the telescopic device in front-back mode, the telescopic device is provided with a mounting portion, a telescopic end and a telescopic driving member, the mounting portion is arranged in the shell, the telescopic driving member is used for driving the telescopic end to move relative to the mounting portion, and the instrument device is mounted at the telescopic end.

The dental therapeutic apparatus provided by the invention has at least the following beneficial effects: the telescopic driving component can drive the telescopic end to move, and the instrument device can move by the telescopic end. The instrument device can be contained in the shell, and when the instrument device is required to be used, the instrument device is driven by the telescopic driving component to extend backwards from the opening. According to the dental therapeutic instrument, the instrument device can be driven by the telescopic device to extend out of the shell of the instrument table for use, and the instrument device is concentrated near the telescopic end, so that the dental therapeutic instrument is convenient for common operation of medical staff without obstruction; when the device is not needed, the device can be stored in the shell, so that the device is safe, sanitary and space-saving.

As a further improvement of the technical scheme, the dental therapeutic apparatus further comprises a base and a deck chair, wherein the deck chair is arranged at the rear end of the base, the instrument table is arranged in front of the deck chair, the instrument table is in sliding connection with the base along the front-back direction, the base is provided with a table moving driving unit, and the table moving driving unit is in transmission connection with the instrument table and enables the instrument table to move back and forth relative to the base. Through the technical scheme, the deck chair can be used for a patient to lie on, so that the patient can keep lying posture more comfortably, and the mouth can be conveniently opened for dental treatment. The table moving driving unit can drive the instrument table to move back and forth relative to the deck chair, so that the distance between the instrument assembly and the deck chair can be adjusted according to the figure of a patient or the treatment process.

As a further improvement of the technical scheme, the instrument table is further provided with a baffle and a sealing driving member, the baffle corresponds to the opening in shape, the baffle is slidably mounted on the inner wall of the rear side of the shell, the shell is provided with a first chute and a second chute, the lower end of the first chute is arranged on the side of the upper end of the opening, the lower end of the second chute is arranged on the side of the lower end of the opening, the front end and the rear end of the baffle are respectively connected with the shell in a sliding manner along the first chute and the second chute, and the sealing driving member is provided with a sealing driving end which is in transmission connection with the baffle and enables the baffle to move relative to the opening. Through the technical scheme, the sealing driving member can drive the upper end and the lower end of the baffle to slide along the first chute and the second chute, so that the opening can be just shielded and sealed when the upper end and the lower end of the baffle slide to the lower ends of the first chute and the second chute.

As a further improvement of the technical scheme, the connecting line direction of the installation part and the telescopic end is the first direction, the telescopic device comprises a plurality of telescopic parts which are sleeved in a layer-by-layer sliding manner along the first direction, and the installation part and the telescopic end are respectively arranged on the telescopic parts at the first layer and the last layer. Through above-mentioned technical scheme, change through the extensible member that the layer upon layer overlaps and establish interval between installation department and the flexible end for when the flexible end is back retracted, telescoping device can keep less size, thereby lets the casing of apparatus platform can keep less size, saves space.

As a further improvement of the above technical solution, the telescopic driving member includes a telescopic driving unit and a plurality of pulley mechanisms, the telescopic driving unit is connected with two adjacent layers of telescopic members, the pulley mechanisms include a rotating pulley and a transmission flexible rope, and the transmission flexible rope is wound on the rotating pulley and is provided with two connecting ends with identical directions; the number of the telescopic members is more than three, the adjacent three telescopic members are telescopic members, the three telescopic members of the telescopic members are an outer telescopic member, a middle telescopic member and an inner telescopic member in sequence, the telescopic members are provided with two pulley mechanisms, rotating pulleys of one pulley mechanism are rotatably mounted on the middle telescopic member, two connecting ends of the other pulley mechanism are connected with the outer telescopic member and the inner telescopic member in the same direction as the first direction, and two connecting ends of the other pulley mechanism are connected with the outer telescopic member and the inner telescopic member in the opposite direction as the first direction.

Through above-mentioned technical scheme, can all pass through pulley mechanism synchronous drive between each extensible member for each extensible member can stretch out and draw back in step, and the motion certainty of each extensible member is high, avoids non-adjacent extensible member to form great gap when stretching out, exists the potential safety hazard. Moreover, each telescopic piece synchronously driven by the pulley mechanism can be driven by a single power to perform telescopic action, so that the cost of the driving element and the installation space of the driving element are saved.

As a further improvement of the technical scheme, the instrument device comprises an instrument disc assembly and a spittoon assembly, wherein the instrument disc assembly and the spittoon assembly are both arranged at the telescopic end in an adjustable mode, and the instrument disc assembly and the spittoon assembly are respectively arranged on the upper side and the lower side of the telescopic device. Through the technical scheme, the instrument tray assembly and the spittoon assembly are respectively arranged on the upper side and the lower side of the telescopic end, and when the telescopic device is retracted into the shell, the instrument tray assembly and the spittoon assembly can be respectively stored on the upper side and the lower side of the telescopic device without interference.

As a further improvement of the technical scheme, the instrument disc assembly comprises a disc body, a connecting swing rod and an instrument frame, wherein the instrument frame is rotatably arranged on the lower side of the disc body, and two ends of the connecting swing rod are respectively and rotatably connected with the telescopic end and the disc body; the spittoon assembly comprises a spittoon basin body and a rotating arm, wherein two ends of the rotating arm are respectively connected with the spittoon basin body and the telescopic end in a rotating mode. By the technical scheme, the tray body can be used for placing cold instruments which are needed to be used in the treatment process such as an endoscope, dental forceps, plastic forceps, a dental probe and the like or used; the instrument rack can be used for placing electric or pneumatic instruments such as a grinding machine, a dental handpiece, a grinding machine, a liquid suction pen and the like. The instrument tray is connected through the connecting swing rod, and the spittoon basin body is connected through the rotating arm, so that the position of the instrument tray and the position of the spittoon basin body can be conveniently adjusted according to the use requirement.

As a further improvement of the above technical solution, the apparatus table is further provided with a rotation driving member, the rotation driving member is disposed in the housing, and the rotation driving member is provided with a rotation driving end in transmission connection with the mounting portion and enabling the telescopic device to rotate around the mounting portion relative to the housing. Through the technical scheme, the rotation driving member can drive the telescopic device to rotate by a certain angle, the telescopic device can swing by a certain angle in the opening, so that the position of the telescopic end can be adjusted as required, and the flexibility is stronger.

As a further improvement of the technical scheme, a constant temperature water tank, a negative pressure pump and a drain pipe are arranged in the shell, the constant temperature water tank, the negative pressure pump and the drain pipe are all connected with at least one elastic shrinkage tube, a pipeline end plate is arranged beside the telescopic end, and the elastic shrinkage tubes are all arranged on the pipeline end plate in a penetrating mode. Through the technical scheme, the negative pressure pump can provide negative pressure for instruments such as a dental handpiece or a liquid suction pen, so that the dental handpiece or the liquid suction pen can be used normally; the treatment process often needs water, and the constant-temperature water tank can provide clean water flow with proper temperature, so that the patient can conveniently rinse the mouth or clean medical staff; the drain pipe can drain the waste water away. The elastic shrinkage tube is elongated when the expansion end extends outwards; when the telescopic end is retracted, the elastic shrinkage tube can be contracted into a spring shape due to self elasticity, so that the telescopic tube is convenient to store, and damage caused by hanging of the tube body is avoided.

As a further improvement of the technical scheme, a hand washing tray is arranged on the left side or the right side of the instrument table, the hand washing tray is communicated with the constant temperature water tank and the drain pipe, a lamp arm is arranged at the upper end of the instrument table, one end of the lamp arm is connected with the instrument table, and an oral cavity lamp is arranged at the other end of the lamp arm. Through above-mentioned technical scheme, the dish of washing hand makes things convenient for medical personnel to use and cleans, and the oral cavity lamp can conveniently adjust its light angle through the lamp arm, provides the illumination for the treatment, conveniently observes patient's oral cavity.

Drawings

The invention is further described below with reference to the drawings and examples;

FIG. 1 is a schematic perspective view of a dental treatment apparatus according to an embodiment of the present invention;

FIG. 2 is a side view of one embodiment of a dental treatment apparatus provided by the present invention;

FIG. 3 is a schematic perspective view of a dental treatment apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of a dental treatment apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of an embodiment of a telescopic device according to the present invention;

fig. 6 is a schematic perspective view of a dental treatment apparatus according to an embodiment of the present invention.

In the figure, 10, base, 20, reclining chair, 30, instrument table, 40, moving table driving unit, 100, casing assembly, 110, casing, 111, first chute, 112, second chute, 120, shutter, 130, seal driving member, 140, hand washing tray, 150, lamp arm, 160, oral lamp, 200, instrument device, 210, instrument tray assembly, 211, tray, 212, connection swing link, 213, instrument rack, 220, spittoon assembly, 221, spittoon basin, 222, rotating arm, 300, telescoping device, 310, telescoping driving unit, 320, telescoping end, 331, first telescoping piece, 332, second telescoping piece, 333, third telescoping piece, 334, fourth telescoping piece, 341, first pulley mechanism, 342, second pulley mechanism, 343, third pulley mechanism, 344, fourth pulley mechanism, 400, rotating driving member, 500, negative pressure pump.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, if there is a word description such as "a plurality" or the like, the meaning of a plurality is one or more, and the meaning of a plurality is two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 6, the dental unit of the present invention makes the following examples:

a dental treatment apparatus comprising: base 10, instrument deck 30, and recliner 20.

The deck chair 20 is provided at the rear end of the base 10, and the instrument stand 30 is provided in front of the deck chair 20. The instrument table 30 is slidably connected with the base 10 along the front-rear direction, the base 10 is provided with a table moving driving unit 40, and the table moving driving unit 40 is provided with a table moving driving end which is in transmission connection with the instrument table 30 and enables the instrument table 30 to move forward and backward relative to the base 10.

In this embodiment, the instrument table 30 is slidably mounted on the upper front side of the base 10 through a sliding rail disposed along the front-rear direction, and the table moving driving unit 40 is an electric cylinder, and in other embodiments, the table moving driving unit 40 may use a linear driving member such as an air cylinder, a hydraulic push rod, or a screw-nut driving assembly.

The instrument table 30 includes: housing assembly 100, instrument assembly 200, and telescoping device 300.

The housing assembly 100 includes a shell 110, a baffle 120, and a seal drive member 130. The shell 110 is in a half crescent box structure, and both front and rear side surfaces of the shell 110 are in arc bending. The rear side of the housing 110 is provided with an opening through which the instrument assembly 200 can pass, which is aligned front-to-back with the telescoping assembly 300.

The rear sidewall of the housing 110 and the baffle 120 are both arc-shaped, and the size of the baffle 120 corresponds to the opening. The baffle 120 is slidably mounted to the rear inner wall of the housing 110. The housing 110 is provided with a first chute 111 and a second chute 112, the lower end of the first chute 111 is disposed beside the upper end of the opening, and the lower end of the second chute 112 is disposed beside the lower end of the opening. The front and rear ends of the baffle 120 are slidably connected to the housing 110 along the first chute 111 and the second chute 112, respectively. The seal driving member 130 is provided with a seal driving end in driving connection with the baffle 120 and moving the baffle 120 relative to the opening.

Referring to fig. 6, when the dental unit is not required, the telescopic device 300 is accommodated in the housing 110, and the opening is closed by the shutter 120. Referring to fig. 4, in the dental treatment, the seal driving member 130 may drive the baffle 120 to slide along the first chute 111 and the second chute 112, leaving the opening, and the telescopic device 300 may drive the instrument 200 to extend for use.

The telescopic device 300 is provided with a mounting portion, a telescopic end 320 and a telescopic driving member. The mounting portion is disposed in the housing 110, the telescopic driving member is configured to drive the telescopic end 320 to move relative to the mounting portion, and the apparatus 200 is mounted on the telescopic end 320.

The telescoping drive member includes a telescoping drive unit 310 and a plurality of pulley mechanisms. The telescopic driving unit 310 is connected to two adjacent layers of the telescopic members. The pulley mechanism comprises a rotating pulley and a transmission flexible rope. The transmission flexible rope is wound on the rotating pulley and is provided with two connecting ends with the same direction. The number of the telescopic pieces is more than three. The three adjacent telescopic members are used as a telescopic assembly, and the three telescopic members of the telescopic assembly are an outer telescopic member, a middle telescopic member and an inner telescopic member in sequence. The telescopic component is provided with two pulley mechanisms. The rotating pulleys of the two pulley mechanisms are rotatably arranged on the middle telescopic piece, the two connecting ends of one pulley mechanism are in the same direction as the first direction and are respectively connected with the outer telescopic piece and the inner telescopic piece, and the two connecting ends of the other pulley mechanism are opposite to the first direction and are respectively connected with the outer telescopic piece and the inner telescopic piece.

In the present embodiment, the telescopic device 300 includes a first telescopic member 331, a second telescopic member 332, a third telescopic member 333, and a fourth telescopic member 334, and a first pulley mechanism 341, a second pulley mechanism 342, a third pulley mechanism 343, and a fourth pulley mechanism 344. The first telescopic member 331, the second telescopic member 332, the third telescopic member 333 and the fourth telescopic member 334 are sequentially sleeved with each other layer by layer through pulleys. The first telescopic member 331 is fixedly installed in the housing 110. The telescopic driving unit 310 is a screw nut driving assembly disposed along the front-rear direction, and a transmission nut of the telescopic driving unit 310 is in transmission connection with the second telescopic member 332.

The rotating pulleys of the first pulley mechanism 341 and the second pulley mechanism 342 are rotatably mounted on the second telescopic member 332, two connecting ends of the first pulley mechanism 341 are disposed backward and respectively connected with the first telescopic member 331 and the third telescopic member 333, and two connecting ends of the second pulley mechanism 342 are disposed forward and respectively connected with the first telescopic member 331 and the third telescopic member 333. The rotating pulleys of the third pulley mechanism 343 and the fourth pulley mechanism 344 are rotatably mounted on the third telescopic member 333, two connecting ends of the third pulley mechanism 343 are disposed backward and respectively connected with the second telescopic member 332 and the fourth telescopic member 334, and two connecting ends of the fourth pulley mechanism 344 are disposed forward and respectively connected with the second telescopic member 332 and the fourth telescopic member 334.

The flexible rope can be a rope, an adhesive tape, a steel rope, a chain and the like. In other embodiments, the telescopic driving unit 310 may use a linear driving member such as a cylinder, an electric putter, a hydraulic putter, etc.

The instrument assembly 200 includes an instrument tray assembly 210 and a spittoon assembly 220. The instrument tray assembly 210 and the spittoon assembly 220 are both adjustably mounted on the telescopic end 320, and the instrument tray assembly 210 and the spittoon assembly 220 are respectively disposed on the upper side and the lower side of the telescopic device 300.

The instrument tray assembly 210 comprises a tray body 211, a connecting swing rod 212 and an instrument rack 213, wherein the instrument rack 213 is rotatably mounted on the lower side of the tray body 211, and two ends of the connecting swing rod 212 are respectively and rotatably connected with the telescopic end 320 and the tray body 211.

The spittoon assembly 220 includes a spittoon body 221 and a rotating arm 222, and two ends of the rotating arm 222 are respectively rotatably connected with the spittoon body 221 and the telescopic end 320. In this embodiment, an electric push rod is disposed between the rotating arm 222 and the telescopic end 320. The lower end of the spittoon body 221 is provided with a water outlet. The rotating arm 222 includes an inner arm and an outer arm slidably sleeved on the inner arm, and the spittoon body 221 and the telescopic end 320 are connected to the inner arm and the outer arm, respectively.

A constant temperature water tank, a negative pressure pump 500 and a drain pipe are arranged in the shell 110. The constant temperature water tank, the negative pressure pump 500 and the drain pipe are all connected with at least one elastic shrinkage pipe, a pipeline end plate is arranged beside the telescopic end 320, and the elastic shrinkage pipes are all arranged on the pipeline end plate in a penetrating mode.

A hand washing tray 140 is arranged on the left side or the right side of the instrument table 30, and the hand washing tray 140 is communicated with the constant temperature water tank and the drain pipe. The upper end of the instrument table 30 is provided with a lamp arm 150, one end of the lamp arm 150 is connected with the instrument table 30, and the other end of the lamp arm 150 is provided with an oral cavity lamp 160.

In some embodiments, the instrument table 30 is further provided with a rotational drive member 400. The rotation driving member 400 is provided at the inner bottom of the housing 110. The rotation driving member 400 is provided with a rotation driving end which is in transmission connection with the mounting portion and enables the telescopic device 300 to rotate around the mounting portion relative to the housing 110.

In addition, for embodiments in which a different number of telescoping members are provided, reference is made to the various examples set forth in telescoping device 300 above, and various examples are not provided herein.

While the preferred embodiment of the present application has been described in detail, the present application is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.

Claims

1. A dental therapeutic apparatus, characterized in that: comprising the following steps: a base (10), a reclining chair (20) and an instrument table (30);

The deck chair (20) is arranged at the rear end of the base (10), the instrument table (30) is arranged in front of the deck chair (20), the instrument table (30) is connected with the base (10) in a sliding way along the front-rear direction, the base (10) is provided with a table moving driving unit (40), and the table moving driving unit (40) is provided with a table moving driving end which is in transmission connection with the instrument table (30) and enables the instrument table (30) to move forwards and backwards relative to the base (10);

The instrument table (30) includes: the device comprises a shell (110), an instrument device (200) and a telescopic device (300), wherein an opening through which the instrument device (200) can pass is formed in the rear side of the shell (110), the opening is aligned with the telescopic device (300) in front-back direction, the telescopic device (300) is provided with a mounting part, a telescopic end (320) and a telescopic driving member, the mounting part is arranged in the shell (110), the telescopic driving member is used for driving the telescopic end (320) to move relative to the mounting part, and the instrument device (200) is mounted at the telescopic end (320);

The utility model discloses a device, including instrument platform (30), baffle (120), opening drive member (130), baffle (120) with opening shape is corresponding, baffle (120) slidable mounting in the rear side inner wall of casing (110), casing (110) are equipped with first spout (111) and second spout (112), the lower extreme of first spout (111) is located open-ended upper end side, the lower extreme of second spout (112) is located open-ended lower extreme side, the upper and lower both ends of baffle (120) respectively with first spout (111) and second spout (112) sliding connection, sealing drive member (130) be equipped with baffle (120) transmission connection, and make baffle (120) are relative the sealed drive end of opening removal.

2. The dental therapeutic apparatus according to claim 1, wherein: the connecting line direction of the installation part and the telescopic end (320) is taken as a first direction, the telescopic device (300) comprises a plurality of telescopic pieces which are sleeved in a layer-by-layer sliding mode along the first direction, and the installation part and the telescopic end (320) are respectively arranged on the telescopic pieces at the first layer and the last layer.

3. The dental therapeutic apparatus according to claim 2, wherein: the telescopic driving component comprises a telescopic driving unit (310) and a plurality of pulley mechanisms, the telescopic driving unit (310) is connected with two adjacent layers of telescopic pieces, the pulley mechanisms comprise rotating pulleys and transmission flexible ropes, and the transmission flexible ropes are wound on the rotating pulleys and are provided with connecting ends with two consistent directions;

The number of the telescopic members is more than three, the adjacent three telescopic members are telescopic members, the three telescopic members of the telescopic members are an outer telescopic member, a middle telescopic member and an inner telescopic member in sequence, the telescopic members are provided with two pulley mechanisms, rotating pulleys of one pulley mechanism are rotatably mounted on the middle telescopic member, two connecting ends of the other pulley mechanism are connected with the outer telescopic member and the inner telescopic member in the same direction as the first direction, and two connecting ends of the other pulley mechanism are connected with the outer telescopic member and the inner telescopic member in the opposite direction as the first direction.

4. The dental therapeutic apparatus according to claim 1, wherein: the device (200) comprises a device disc assembly (210) and a spittoon assembly (220), wherein the device disc assembly (210) and the spittoon assembly (220) are both arranged at the telescopic end (320) in an adjustable mode, and the device disc assembly (210) and the spittoon assembly (220) are respectively arranged on the upper side and the lower side of the telescopic device (300).

5. The dental therapeutic apparatus according to claim 4, wherein: the instrument disc assembly (210) comprises a disc body (211), a connecting swing rod (212) and an instrument frame (213), wherein the instrument frame (213) is rotatably arranged on the lower side of the disc body (211), and two ends of the connecting swing rod (212) are respectively rotatably connected with the telescopic end (320) and the disc body (211); the spittoon assembly (220) comprises a spittoon basin body (221) and a rotating arm (222), wherein two ends of the rotating arm (222) are respectively connected with the spittoon basin body (221) and the telescopic end (320) in a rotating mode.

6. The dental therapeutic apparatus according to claim 1, wherein: the instrument table (30) is further provided with a rotation driving member (400), the rotation driving member (400) is arranged in the shell (110), and the rotation driving member (400) is provided with a rotation driving end which is in transmission connection with the mounting part and enables the telescopic device (300) to rotate around the mounting part relative to the shell (110).

7. The dental therapeutic apparatus according to claim 1, wherein: the constant temperature water tank, the negative pressure pump (500) and the drain pipe are arranged in the shell (110), the constant temperature water tank, the negative pressure pump (500) and the drain pipe are all connected with at least one elastic shrinkage pipe, a pipeline end plate is arranged beside the telescopic end (320), and the elastic shrinkage pipes are all arranged on the pipeline end plate in a penetrating mode.

8. The dental therapeutic apparatus according to claim 7, wherein: the hand washing device is characterized in that a hand washing tray (140) is arranged on the left side or the right side of the instrument table (30), the hand washing tray (140) is communicated with the constant-temperature water tank and the drain pipe, a lamp arm (150) is arranged at the upper end of the instrument table (30), one end of the lamp arm (150) is connected with the instrument table (30), and an oral cavity lamp (160) is arranged at the other end of the lamp arm (150).