CN110812094B

CN110812094B - Department of stomatology is with comprehensive therapy machine

Info

Publication number: CN110812094B
Application number: CN201911338168.2A
Authority: CN
Inventors: 冯琦; 司亚静; 李海婷; 刘晶; 孙昕; 白颖
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: Sinol Dental Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-06-25
Anticipated expiration: 2039-12-23
Also published as: CN110812094A

Abstract

The utility model provides a comprehensive therapy apparatus for department of stomatology, includes the base, is provided with inspection bed and second support on the base, and the second support rotates and is connected with the equipment tray, can dismantle on the equipment tray and be provided with the dental drill, and the dental drill is handle and back handle before fixedly connected with in proper order, the fixed second anchor clamps that are provided with on the preceding handle, the fixed at least one first anchor clamps that are provided with on the back handle, the common centre gripping of first anchor clamps and second anchor clamps has the drinking-water pipe, and the one end intercommunication of drinking-water pipe has the aspirator, and the other one end of drinking-water pipe is close to the dental drill is and be connected with. The invention provides a comprehensive treatment machine for stomatology, which can improve the comfort of a patient and the diagnosis and treatment efficiency.

Description

Department of stomatology is with comprehensive therapy machine

Technical Field

The invention relates to the field of diagnosis and treatment equipment for stomatology, in particular to a comprehensive treatment machine for stomatology.

Background

The comprehensive treatment machine for department of stomatology is a basic diagnosis and treatment device for department of stomatology, and bears a large amount of daily diagnosis and treatment work. Most of current department of stomatology comprehensive therapy machine structure is as shown in fig. 1, including base 5, be provided with the inspection bed on the base 5, water receiving tank 4, first support 6 and second support 10, second support 10 rotates and is connected with equipment tray 11, can dismantle on the equipment tray 11 and be provided with dental drill 12, dental drill 12 is preceding handle 13 of fixedly connected with and back handle 14 in proper order, be the obtuse angle between preceding handle 13 and the back handle 14, and the length of preceding handle 13 is less than the length of back handle 14, first support 6 is connected with perpendicular decurrent connecting axle 7, second connecting axle 7 rotates and is connected with dwang 8, dwang 8 fixedly connected with light 9, the inspection bed is including headrest 1 that connects gradually, back backup pad 2 and low limbs backup pad 3.

The dental drill 12 is a device with high use frequency in a comprehensive treatment machine, for example, in the process of filling teeth, the dental drill 12 is required to be used for polishing off damaged parts on teeth of a patient so as to avoid diffusion and facilitate filling of tooth filling materials, because the rotating speed of the dental drill 12 is very high, local high temperature can be generated during use to cause injury to the patient, the existing dental drill 12 mostly has the function of water spraying, and physiological saline is sprayed during polishing, on one hand, the local temperature can be reduced, on the other hand, dental debris on an operation surface can be washed away to judge the polishing condition by a facial surgeon, and the sprayed physiological saline carries the debris to fall into the oral cavity of the patient, so that the patient needs to spit the part of physiological saline into the water receiving tank 4 after polishing for a certain time so as to facilitate continuous polishing. Present water receiving tank 4 sets up in the side the place ahead of inspection bed, and the patient need lie on the inspection bed diagnosing the in-process, this just leads to the patient must rise when spitting water the ability, but because light 9 need can guarantee the illuminating effect near apart from the patient, so the patient can only slightly rise in order to avoid bumping light 9 when rising up usually, patient's trunk portion is still the slope this moment, it is very inconvenient when this just leads to the patient to spit water, leak from the corner of mouth easily, and want to let the patient completely rise, need the doctor to move the light again, the process is loaded down with trivial details, cause the process of diagnosing and lengthen consuming time.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the comprehensive treatment machine for the department of stomatology, which can improve the comfort degree of a patient and the diagnosis and treatment efficiency.

In order to achieve the purpose, the invention adopts the specific scheme that: the utility model provides a comprehensive therapy apparatus for department of stomatology, includes the base, is provided with inspection bed and second support on the base, and the second support rotates and is connected with the equipment tray, can dismantle on the equipment tray and be provided with the dental drill, and the dental drill is handle and back handle before fixedly connected with in proper order, the fixed second anchor clamps that are provided with on the preceding handle, the fixed at least one first anchor clamps that are provided with on the back handle, the common centre gripping of first anchor clamps and second anchor clamps has the drinking-water pipe, and the one end intercommunication of drinking-water pipe has the aspirator, and the other one end of drinking-water pipe is close to the dental drill is and be connected with.

As a preferred scheme, first anchor clamps are including fixed the setting first base on the front handle is provided with two curved first limiting plates on the first base, and two first limiting plates enclose out first passageway with first base jointly, the drinking-water pipe passes from first passageway.

As a preferred scheme, one of the first limiting plates is fixedly connected with the first base, the other first limiting plate is hinged with the first base through a hinge, an iron sheet and a permanent magnet are respectively embedded on the two first limiting plates, and the iron sheet and the permanent magnet attract each other to enable the two first limiting plates and the first base to enclose the first channel.

As an optimal scheme, the articulated elements includes that two are fixed to be set up fixed block on the first base to two fixed block intervals set up, are connected with the installation axle between two fixed blocks, install the epaxial rotation cover of axle and be equipped with the movable sleeve, with first base is articulated first limiting plate body coupling has an extension, extension and movable sleeve fixed connection, and this first limiting plate dorsad one side fixedly connected with lug of first passageway.

As a preferred scheme, the second anchor clamps are including fixed the setting second base on the front handle, the fixed two curved second limiting plates that are provided with on the second base, at least one soft stopper of second limiting plate fixedly connected with, two second limiting plates, two soft stoppers and second base enclose jointly and close out the second passageway, the drinking-water pipe passes from the second passageway.

As a preferred scheme, the water pumping pipe is close to one end of the dental drill and is fixedly sleeved with a fixing sleeve, an annular groove is formed in the outer wall of the fixing sleeve, a sleeve is movably arranged in the groove, and the sleeve is connected with the pull ring through a connecting piece.

As a preferred scheme, be provided with first support on the base, first leg joint has perpendicular decurrent connecting axle, and the second connecting axle rotates and is connected with the dwang, dwang fixedly connected with light, the inspection bed is including headrest, back backup pad and the low limbs backup pad that connects gradually, inlay on the headrest and be equipped with first pressure sensor, it is equipped with second pressure sensor to inlay in the backup pad of back, the second connecting axle pass through the motor with the dwang is connected, and first pressure sensor, second pressure sensor and the common electric connection of motor have the controller.

As a preferred scheme, a mounting hole is formed in the connecting shaft, the motor is fixedly arranged in the mounting hole, and an output shaft of the motor downwards penetrates through the baffle fixedly connected to the rear of the rotating rod.

As a preferred scheme, be obtuse angle between the preceding handle with the back handle, and the length of preceding handle is less than the length of back handle, fixed being provided with two on the back handle first anchor clamps, the extending direction when drinking-water pipe stretches out from the second anchor clamps with follow be obtuse angle between the extending direction when the second anchor clamps stretch out.

Has the advantages that: by adopting the invention, the mixture of the normal saline in the oral cavity and the dental debris can be discharged by a patient without standing up in the working process of the dental drill, and the pull ring is operated by one finger of the patient in the process, so that the method is simple and convenient, the diagnosis and treatment efficiency can be accelerated, and the comfort level of the patient can be improved. On the other hand, because the drinking-water pipe is fixed to the handle of the dental drill through the first clamp and the second clamp, the doctor can directly fix the drinking-water pipe when holding the dental drill, and the discomfort of a patient caused by the shaking of the drinking-water pipe is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of an integrated treatment machine for stomatology;

FIG. 2 is a schematic diagram of the arrangement of the pumping tube;

FIG. 3 is a schematic view of the overall structure of the first clamp;

FIG. 4 is a schematic view of the arrangement of the first limiting plate;

FIG. 5 is a schematic view of a hinge;

FIG. 6 is a schematic view of the overall structure of the second clamp;

FIG. 7 is a schematic view of the arrangement of the tab;

FIG. 8 is a schematic diagram of the arrangement of two pressure sensors;

fig. 9 is a schematic view of the arrangement of the motor.

Description of the drawings: 1-headrest, 2-back support plate, 3-lower limb support plate, 4-water receiving tank, 5-base, 6-first support, 7-connecting shaft, 8-rotating rod, 9-illuminating lamp, 10-second support, 11-equipment tray, 12-dental drill, 13-front handle, 14-rear handle, 15-water pumping pipe, 16-first clamp, 17-second clamp, 18-pull ring, 19-first base, 20-first recess, 21-hinge element, 22-first limiting plate, 23-lug, 24-iron sheet, 25-permanent magnet, 26-fixed block, 27-mounting shaft, 28-movable sleeve, 29-extension part, 30-second base, 31-second recess part, 32-a second limit plate, 33-a gap, 34-a soft limit block, 35-a fixed sleeve, 36-a sleeve, 37-a connecting sheet, 38-a first pressure sensor, 39-a second pressure sensor, 40-a motor, 41-an output shaft and 42-a baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 2 to 9, a comprehensive treatment machine for department of stomatology comprises a base 5, wherein an examination table and a second support 10 are arranged on the base 5, the second support 10 is rotatably connected with an equipment tray 11, a dental drill 12 is detachably arranged on the equipment tray 11, the dental drill 12 is sequentially and fixedly connected with a front handle 13 and a rear handle 14, a second clamp 17 is fixedly arranged on the front handle 13, at least one first clamp 16 is fixedly arranged on the rear handle 14, the first clamp 16 and the second clamp 17 clamp a water pumping pipe 15 together, one end of the water pumping pipe 15 is communicated with an aspirator, and the other end of the water pumping pipe 15 is close to the dental drill 12 and is connected with a pull ring 18.

In use of the invention, a patient lies on the examination table, a doctor holds the dental drill 12 with his hand and puts one of his fingers through the pull ring 18; then the dental drill 12 and the end of the suction pipe 15 are jointly inserted into the mouth of the patient, before the dental drill 12 is opened, the suction pipe 15 is bent and away from the dental drill 12 by pulling the pull ring 18, so as to avoid interfering with the operation of the dental drill 12; then the dental drill 12 is started to polish the teeth; after polishing for a period of time, the mixture of the normal saline and the dental debris in the oral cavity of the patient forms a certain accumulation, at the moment, the doctor enables the water pumping pipe 15 to stretch into the normal saline by loosening the pull ring 18, the mixture of the normal saline and the dental debris is pumped away under the action of the suction apparatus, the pull ring 18 is pulled again after the pumping is finished, so that the water pumping pipe 15 is far away from the dental drill 12, and the dental drill 12 can be continuously used for polishing the teeth.

By adopting the invention, the mixture of the normal saline in the oral cavity and the dental debris can be discharged by a patient without standing up in the working process of the dental drill 12, and the pull ring 18 can be operated by one finger of the doctor in the process, so that the invention is simple and convenient, the diagnosis and treatment efficiency can be accelerated, and the comfort level of the patient can be improved. On the other hand, since the suction pipe 15 is fixed to the handle of the dental drill 12 by the first and

second clamps

16 and 17, the doctor can directly fix the suction pipe 15 while holding the dental drill 12, thereby preventing the patient from being uncomfortable due to shaking of the suction pipe 15.

It should be noted that the water suction pipe 15 needs to be inserted into the mouth of the patient, and is more suitable for the adult patient with a large mouth volume. Furthermore, the suction tube 15 may be made of a material and have a structure similar to those of infusion tubes, but it is required to be reduced in size to facilitate use in the oral cavity with a limited volume, and since the cost is low, the suction tube 15 may be disposable to avoid the risk of cross-infection and the cost of sterilization caused by repeated use.

Further, the first clamp 16 includes a first base 19 fixedly disposed on the front handle 13, two arc-shaped first limiting plates 22 are disposed on the first base 19, the two first limiting plates 22 and the first base 19 together enclose a first channel, and the pumping pipe 15 passes through the first channel. Before the diagnosis and treatment process is started, a doctor puts the water pumping pipe 15 into the first channel, and the diagnosis and treatment process is convenient and quick.

Furthermore, one of the first limiting plates 22 is fixedly connected with the first base 19, the other first limiting plate 22 is hinged to the first base 19 through a hinge 21, an iron sheet 24 and a permanent magnet 25 are respectively embedded in the two first limiting plates 22, and the iron sheet 24 and the permanent magnet 25 attract each other to enable the two first limiting plates 22 and the first base 19 to enclose a first channel. In the process of placing the pumping pipe 15 into the first passage, a doctor firstly rotates the first limiting plate 22 hinged with the first base 19 to increase the distance between the first limiting plate and the other first limiting plate 22, so that the pumping pipe 15 can be conveniently placed between the two first limiting plates 22, then the rotated first limiting plate 22 is reset, the two first limiting plates 22 can be fixed by means of the attraction force between the iron sheet 24 and the permanent magnet 25, the whole process is simple to operate, compared with the mode of directly passing the pumping pipe 15 through the first passage, although the structure complexity is improved, the structure is faster, the diagnosis and treatment efficiency can be improved, the patient can be prevented from waiting for a long time, and because the pumping pipe 15 is required to extend into the oral cavity of the patient, the mode of placing from the side can be adopted to prevent the extending end of the pumping pipe 15 from contacting with the first clamp 16, so that the pumping pipe 15 is prevented from being polluted, the effect of protecting the patient is achieved.

Further, articulated elements 21 includes two fixed blocks 26 of fixed setting on first base 19 to two fixed blocks 26 intervals set up, are connected with installation axle 27 between two fixed blocks 26, and the cover is equipped with movable sleeve 28 in installing axle 27 rotates, and first limiting plate 22 body coupling with first base 19 articulated has extension 29, extension 29 and movable sleeve 28 fixed connection, and this one side fixedly connected with lug 23 of first limiting plate 22 dorsad first passageway. Because the first limit plate 22 needs to be rotated to open the first channel, and attraction exists between the iron sheet 24 and the permanent magnet 25 when the two first limit plates 22 are contacted with each other, a certain force is needed to smoothly rotate one first limit plate 22 hinged with the first base 19, and the projection 23 is arranged for facilitating the force application of a doctor, and the doctor can push the projection 23 by a thumb, so that the convenience and the rapidness are realized.

Further, the second fixture 17 includes a second base 30 fixedly disposed on the front handle 13, two arc-shaped second limiting plates 32 are fixedly disposed on the second base 30, at least one soft limiting block 34 is fixedly connected to the second limiting plate 32, the two second limiting plates 32, the two soft limiting blocks 34 and the second base 30 enclose a second channel together, the water pumping pipe 15 penetrates through the second channel, and a gap 33 is reserved between the two second limiting plates 32 for accommodating the soft limiting blocks 34. Different from the first clamp 16, the second clamp 17 needs to bear the lateral extrusion force generated by the doctor in the process of pulling the pull ring 18 to bend the suction pipe 15, while the first clamp 16 is held in the doctor, and only needs to be capable of guiding and fixing the suction pipe 15 to a certain extent, so that the second clamp 17 needs to have higher strength to prevent the suction pipe 15 from being pulled out of the second clamp 17 when the doctor pulls the pull ring 18. In order to achieve the effect, the two second limiting plates 32 are fixedly arranged in the second clamp 17, so that the water pumping pipe 15 cannot be separated from the second limiting plates 32 no matter how the water pumping pipe 15 laterally presses the second limiting plates, meanwhile, in order to conveniently place the water pumping pipe 15 into the second channel, the extending end of the water pumping pipe 15 is prevented from contacting the second clamp 17, the soft limiting blocks 34 are arranged, the soft limiting blocks 34 are deformed by pressing the soft limiting blocks 34 in the process of placing the water pumping pipe 15 into the second channel, gaps are generated, then the water pumping pipe 15 can be quickly installed by means of the characteristic that the water pumping pipe 15 is soft and can be deformed, and after the installation is completed, the water pumping pipe 15 and the soft limiting blocks 34 are restored, so that the water pumping pipe 15 is effectively prevented from being separated from the gap 33 between the two second limiting plates 32.

Further, the bottom of the first base 19 is provided with a first recess 20, the bottom of the second base 30 is provided with a second recess 31, and both the first recess 20 and the second recess 20 are used for better fitting with the handle of the dental drill 12.

Furthermore, a fixing sleeve 35 is fixedly sleeved on one end of the water pumping pipe 15 close to the dental drill 12, an annular groove is formed in the outer wall of the fixing sleeve 35, a sleeve 36 is movably arranged in the groove, and the sleeve 36 is connected with the pull ring 18 through a connecting sheet 37. Through the cooperation of the fixed sleeve 35 and the sleeve 36, the connection strength between the pumping pipe 15 and the pull ring 18 is increased, and the pumping pipe 15 can be driven to bend and be far away from the dental drill 12 when the pull ring 18 is pulled.

Further, be provided with first support 6 on the base 5, first support 6 is connected with perpendicular decurrent connecting axle 7, second connecting axle 7 rotates and is connected with dwang 8, dwang 8 fixedly connected with light 9, the inspection bed is including the headrest 1 that connects gradually, back backup pad 2 and low limbs backup pad 3, it is equipped with first pressure sensor 38 to inlay on the headrest 1, it is equipped with second pressure sensor 39 to inlay on the back backup pad 2, second connecting axle 7 is connected with dwang 8 through motor 40, first pressure sensor 38, the common electric connection of second pressure sensor 39 and motor 40 has the controller.

Because the mode of pumping the mixture of the physiological saline and the tooth debris by the water pumping pipe 15 is only used for adults with larger oral cavity capacity, but is not suitable for children with smaller oral cavity capacity, and children still need to get up to spit water, the invention further adopts the mode of driving the illuminating lamp 9 by the motor 40, when the children get up, the head of the children is separated from the headrest 1, at the moment, the first pressure sensor 38 loses the pressure reading and returns to zero, then the trunk is separated from the back supporting plate 2, at the moment, the second pressure sensor 39 loses the pressure reading and returns to zero, through the process, the controller can judge that the children are getting up, then the motor 40 is controlled to operate and drive the rotating rod 8 to rotate, and then the rotating rod 8 drives the illuminating lamp 9 to be far away from the children, thereby facilitating the children to get up completely, and without manual operation of doctors, in the process that the children lie down again after the water is, second pressure sensor 39 and first pressure sensor 38 receive pressure in proper order and produce the reading, and controller driving motor 40 reverse running resets light 9 this moment and can let the doctor continue to operate, and whole in-process doctor and children do not need the position of manual control light 9, can reduce time consumption under the prerequisite of guaranteeing children's comfort level, improve and diagnose efficiency. It should be noted that, because only data of the two pressure sensors need to be collected and judged, the controller only needs to use a single chip with low cost.

Further, the motor 40 is arranged in the following manner: the connecting shaft 7 is provided with a mounting hole inside, the motor 40 is fixedly arranged in the mounting hole, and an output shaft 41 of the motor 40 downwards penetrates through the rotating rod 8 and then is fixedly connected with a baffle 42. The baffle 42 is used for improving the connection strength of the output shaft 41 and the rotating rod 8, so as to ensure the safety, and other connection structures can be added between the rotating rod 8 and the connecting shaft 7 to improve the safety.

Furthermore, an obtuse angle is formed between the front handle 13 and the rear handle 14, the length of the front handle 13 is smaller than that of the rear handle 14, two first clamps 16 are fixedly arranged on the rear handle 14, and an obtuse angle is formed between the extending direction of the pumping pipe 15 when extending out of the second clamp 17 and the extending direction of the pumping pipe when extending out of the second clamp 17. Through this structure, on the one hand can make the drinking-water pipe 15 better with the handle laminating of dental drill 12, improve the comfort level that the doctor gripped the handle, on the other hand can also avoid drinking-water pipe 15 to cause along axial sliding to stretch into the end and can't stretch into smoothly in the mixture of normal saline and tooth piece.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a comprehensive therapy apparatus for department of stomatology, includes base (5), is provided with inspection bed and second support (10) on base (5), and second support (10) rotate and are connected with equipment tray (11), can dismantle on equipment tray (11) and be provided with dental drill (12), and dental drill (12) are fixedly connected with front handle (13) and back handle (14), its characterized in that in proper order: preceding handle (13) are gone up the fixed second anchor clamps (17) that are provided with, the fixed at least one first anchor clamps (16) that are provided with on back handle (14), first anchor clamps (16) and the common centre gripping of second anchor clamps (17) have drinking-water pipe (15), and the one end intercommunication of drinking-water pipe (15) has the aspirator, and the other one end of drinking-water pipe (15) is close to dental drill (12) are and be connected with pull ring (18), drinking-water pipe (15) are close to one of dental drill (12) is served fixed cover and is equipped with fixed cover (35), has seted up annular recess on the outer wall of fixed cover (35), and the activity is provided with sleeve pipe (36) in the recess, sleeve pipe (36) through connection piece (37) with pull ring (18) are connected.

2. The integrated treatment machine for department of stomatology according to claim 1, characterized in that: first anchor clamps (16) are including fixed setting first base (19) on front handle (13), are provided with two curved first limiting plate (22) on first base (19), and two first limiting plate (22) enclose out first passageway with first base (19) jointly, drinking-water pipe (15) pass from first passageway.

3. The comprehensive therapeutic apparatus for stomatology according to claim 2, characterized in that: one of them first limiting plate (22) with first base (19) fixed connection, another one first limiting plate (22) pass through articulated elements (21) and are articulated with first base (19), inlay respectively on two first limiting plates (22) and be equipped with iron sheet (24) and permanent magnet (25), iron sheet (24) and permanent magnet (25) inter attraction make two first limiting plates (22) and first base (19) enclose and close out first passageway.

4. A complex treatment machine for oral use according to claim 3, characterized in that: articulated elements (21) are including two fixed settings fixed block (26) on first base (19) to two fixed block (26) intervals set up, are connected with installation axle (27) between two fixed block (26), rotate the cover on installation axle (27) and are equipped with movable sleeve (28), with first base (19) articulated first limiting plate (22) an organic whole is connected with extension (29), extension (29) and movable sleeve (28) fixed connection, and this first limiting plate (22) dorsad one side fixedly connected with lug (23) of first passageway.

5. The integrated treatment machine for department of stomatology according to claim 1, characterized in that: second anchor clamps (17) are including fixed setting second base (30) on front handle (13), and the fixed second limiting plate (32) that are provided with two arcs on second base (30), and at least one soft stopper (34) of second limiting plate (32) fixedly connected with enclose out the second passageway jointly two second limiting plates (32), two soft stoppers (34) and second base (30), drinking-water pipe (15) pass from the second passageway.

6. The comprehensive treatment machine for department of stomatology according to claim 1, wherein the base (5) is provided with a first bracket (6), the first bracket (6) is connected with a vertically downward connecting shaft (7), the second connecting shaft (7) is rotatably connected with a rotating rod (8), the rotating rod (8) is fixedly connected with a lighting lamp (9), the examining table comprises a headrest (1), a back support plate (2) and a lower limb support plate (3) which are connected in sequence, and the comprehensive treatment machine is characterized in that: inlay on headrest (1) and be equipped with first pressure sensor (38), inlay on back backup pad (2) and be equipped with second pressure sensor (39), second connecting axle (7) through motor (40) with dwang (8) are connected, the common electric connection of first pressure sensor (38), second pressure sensor (39) and motor (40) has the controller.

7. The comprehensive therapeutic apparatus for stomatology of claim 6, wherein: the connecting shaft (7) is internally provided with a mounting hole, the motor (40) is fixedly arranged in the mounting hole, and an output shaft (41) of the motor (40) downwards penetrates through a baffle (42) fixedly connected with the rear part of the rotating rod (8).

8. An integrated treatment machine for oral cavity department according to claim 1, wherein the front handle (13) and the rear handle (14) form an obtuse angle therebetween, and the length of the front handle (13) is smaller than that of the rear handle (14), characterized in that: two first clamps (16) are fixedly arranged on the rear handle (14), and an obtuse angle is formed between the extending direction of the water pumping pipe (15) when the water pumping pipe extends out of the second clamp (17) and the extending direction of the water pumping pipe when the water pumping pipe extends out of the second clamp (17).