阅读说明：本技术 一种基于耳鼻口科伤口上药的喷药器 (Medicine sprayer based on ear-nose-mouth wound medicine application ) 是由 雷腾均 于 2021-06-24 设计创作，主要内容包括：本发明涉及一种喷药器,尤其涉及一种基于耳鼻口科伤口上药的喷药器。提供一种可以实现轻松上药、轻松将药液推出、将药瓶夹紧、根据使用者的需求随意调节喷头、避免药液浪费的基于耳鼻口科伤口上药的喷药器。一种基于耳鼻口科伤口上药的喷药器,包括有把手等；把手上部设有外壳,外壳内上部左侧连接有装药罐,装药罐右侧滑动式设有推动杆,推动杆与外壳内部设有喷洒机构,推动杆与装药罐之间连接有第一弹簧。本发明通过扣动扳机逆时针旋转,带动固定杆向前滑动,从而带动拉动杆与推动杆向前移动,第一弹簧被压缩,使得药液被推出装药罐,药液喷洒在需要上药的位置,达到可以轻松将药液推出的效果。(The invention relates to a medicine sprayer, in particular to a medicine sprayer for applying medicine to wounds of otorhinolaryngology. The utility model provides a can realize easily getting it filled, easily release the liquid medicine, press from both sides the medicine bottle tight, adjust the shower nozzle at will according to user's demand, avoid the extravagant medicine sprayer based on otorhinolaryngology wound of liquid medicine. A medicine sprayer based on ear-nose-mouth wound medicine application comprises a handle and the like; handle upper portion is equipped with the shell, and the upper portion left side is connected with the powder charge jar in the shell, and powder charge jar right side slidingtype is equipped with the catch bar, and catch bar and the inside spraying mechanism that is equipped with of shell are connected with first spring between catch bar and the powder charge jar. According to the invention, the fixed rod is driven to slide forwards by pulling the trigger to rotate anticlockwise, so that the pulling rod and the pushing rod are driven to move forwards, the first spring is compressed, the liquid medicine is pushed out of the medicine charging tank, and the liquid medicine is sprayed at a position needing medicine feeding, so that the effect of easily pushing the liquid medicine out is achieved.)

1. The utility model provides a medicine sprayer based on ear, nose and mouth wound is applied medicine, characterized by: comprises the following steps: the handle (1), the upper part of the handle (1) is provided with a shell (11); a medicine charging tank (5), wherein one side of the upper part in the shell (11) is connected with the medicine charging tank (5); a push rod (3) is arranged on one side of the medicine-containing tank (5) in a sliding way; the spraying mechanism (2) is arranged inside the pushing rod (3) and the shell (11); the first spring (4) is connected between the push rod (3) and the medicine charging tank (5), and the first spring (4) is sleeved on the push rod (3); a fixing mechanism (6), and one side of the upper part of the shell (11) is provided with the fixing mechanism (6).

2. The medicine applicator based on the otorhinostomal wound application of claim 1, characterized in that: the spraying mechanism (2) comprises: the pulling rod (23) is symmetrically arranged on one side of the pushing rod (3); two sliding sleeves (24) are symmetrically arranged on one side of the upper part of the shell (11), and the pulling rod (23) is connected with the sliding sleeves (24) in a sliding manner; the fixed rods (25) are arranged on one sides of the pulling rods (23); a first rotating shaft (22) is rotatably arranged between one side of the lower part of the fixed rod (25); the trigger (21) is arranged on the first rotating shaft (22), and the trigger (21) is connected with the shell (11) in a sliding mode.

3. The medicine applicator based on the otorhinostomal wound application of claim 2, characterized in that: the fixing mechanism (6) comprises: the first fixing block (61) is symmetrically arranged on one side of the upper part of the shell (11); the upper parts of the first fixing blocks (61) are symmetrically and slidably provided with connecting rods (64); the clamping blocks (62) are connected between the connecting rods (64) on the two sides of the clamping blocks (62); and the second springs (63) are symmetrically connected between the clamping blocks (62) and the first fixing blocks (61), and the second springs (63) are sleeved on the connecting rods (64).

4. The medicine applicator based on the otorhinostomal wound application of claim 3, characterized in that: still including preventing touching subassembly (7), prevent touching subassembly (7) including: a second fixed block (71), wherein the second fixed block (71) is arranged on one side of the lower part of the shell (11); the first stop block (72) is arranged on each of two sides of the first stop block (72) and the second fixed block (71) in a sliding manner; the third springs (73) are connected between the second fixing block (71) and the first stop block (72), and the third springs (73) are sleeved on the first stop block (72); the second stop block (76) is symmetrically arranged on one side of the lower part of the shell (11); the sliding blocks (75) are arranged on the outer sides of the first blocking blocks (72) in a sliding mode; the first toggle block (74) is arranged on the outer side of the sliding block (75), and the second stop block (76) is matched with the first toggle block (74).

5. The medicine applicator based on the otorhinostomal wound application of claim 4, characterized in that: still including conversion subassembly (8), conversion subassembly (8) including: the middle of one side of the shell (11) is provided with a rack (86) in a sliding way; a limiting frame (87), wherein one side of the upper part of the rack (86) is provided with the limiting frame (87); a support frame (89), wherein one side of the inner lower part of the shell (11) is provided with the support frame (89); the upper part of the supporting frame (89) is rotatably provided with a second gear (85), and the second gear (85) is meshed with the rack (86); a second rotating shaft (88), wherein the second rotating shaft (88) is rotatably arranged on one side of the lower part of the medicine containing tank (5); a first gear (84) is arranged on one side of the second rotating shaft (88); the spray heads (81) are arranged on one side of the second rotating shaft (88) in an up-down symmetrical mode; an atomizer (82), wherein the atomizer (82) is arranged on one side inside the upper spray head (81); a filter screen (83), wherein the filter screen (83) is arranged in the middle inside the upper side spray head (81); a third rotating shaft (811), wherein one side of the lower part of the medicine charging tank (5) is rotatably provided with the third rotating shaft (811); and a third gear (810), wherein one side of the third rotating shaft (811) is provided with the third gear (810), and the third gear (810) is meshed with the first gear (84) and the second gear (85).

6. The medicine applicator based on the otorhinostomal wound application of claim 5, characterized in that: still including blockking subassembly (9), blockking subassembly (9) including: a fixing frame (96), a fixing frame (96) at one side of the medicine charging tank (5); the transmission wheel (93) is symmetrically and rotatably arranged at one side of the medicine containing tank (5), and a transmission shaft of the transmission wheel (93) at one side is rotatably connected with the fixed frame (96); a second toggle block (95) is arranged on one side of the transmission shaft of the transmission wheel (93) on one side, and the second toggle block (95) is matched with the limiting frame (87); the transmission belt (94), the transmission belt (94) is arranged between the transmission wheels (93); a torsion spring (92) is connected between one side of the transmission shaft of the transmission wheel (93) on one side and the fixed frame (96); the baffle (91) is arranged on one side of the transmission shaft of the transmission wheel (93) on one side of the baffle (91).

7. The medicine applicator based on the otorhinostomal wound application of claim 6, characterized in that: the device is characterized by further comprising a limiting component (10), wherein the limiting component (10) is arranged between the fixing rod (25) on one side and one side of the inner lower part of the shell (11).

8. The medicine applicator for the otorhinolaryngological wound based application of medicine according to claim 7, wherein: spacing subassembly (10) including: the lower part of the fixing rod (25) at one side of the wedge block (1003) is provided with the wedge block (1003); a third fixing block (1001), wherein the third fixing block (1001) is arranged on one side of the inner lower part of the shell (11); a third toggle block (1002), a third toggle block (1002) is arranged on the upper portion of the third fixed block (1001) in a sliding mode, the third toggle block (1002) is connected with the shell (11) in a sliding mode, and the third toggle block (1002), the wedge block (1003) and the rack (86) are matched with each other.

Technical Field

The invention relates to a medicine sprayer, in particular to a medicine sprayer for applying medicine to wounds of otorhinolaryngology.

Background

At present, medical instrument that medical personnel often used in the treatment process of diseases such as otolaryngology in clinic is otolaryngology ware of dosing, this kind of medical instrument has brought the convenience for the patient to a certain extent, but still has a lot of weak points, and current ware of dosing is generally dosed through the cotton ball, though can satisfy the requirement of dosing to the patient, it is inhomogeneous to administer medicine, the treatment effect has been influenced, and the liquid medicine is cooler, the patient uses uncomfortable, doctor's burden has increased, it is not especially sanitary yet simultaneously.

How to design one kind can realize easily getting it filled, easily push out the liquid medicine, press from both sides the medicine bottle tight, adjust the shower nozzle at will according to user's demand, avoid the extravagant medicine sprayer based on otorhinolaryngology wound of liquid medicine, become the problem that will solve at present.

Disclosure of Invention

In order to overcome the defects that the prior art is inconvenient to easily feed medicine, cannot easily push out liquid medicine, cannot clamp a medicine bottle, cannot randomly adjust a spray head according to the requirement of a user and wastes the liquid medicine, the invention has the technical problems that: the utility model provides a can realize easily getting it filled, easily release the liquid medicine, press from both sides the medicine bottle tight, adjust the shower nozzle at will according to user's demand, avoid the extravagant medicine sprayer based on otorhinolaryngology wound of liquid medicine.

A medicine sprayer based on ear-nose-mouth wound medicine application comprises: the upper part of the handle is provided with a shell; one side of the upper part in the shell is connected with a medicine charging tank; the pushing rod is arranged on one side of the medicine charging tank in a sliding manner; the pushing rod and the inner part of the shell are provided with a spraying mechanism; the first spring is connected between the pushing rod and the charging tank and sleeved on the pushing rod; and one side of the upper part of the shell is provided with a fixing mechanism.

Further, the spraying mechanism comprises: one side of the pushing rod is symmetrically provided with the pulling rod; two sliding sleeves are symmetrically arranged on one side of the upper part of the shell, and the pulling rod is connected with the sliding sleeves in a sliding manner; the fixed rods are arranged on one sides of the pulling rods; the first rotating shaft is rotatably arranged between one sides of the lower parts of the fixing rods; the trigger is arranged on the first rotating shaft and is connected with the shell in a sliding mode.

Further, the fixing mechanism includes: the first fixing block is symmetrically arranged on one side of the upper part of the shell; the upper parts of the first fixed blocks are symmetrically and slidably provided with connecting rods; the clamping blocks are connected between the connecting rods on the two sides; and the second springs are symmetrically connected between the clamping blocks and the first fixing blocks and sleeved on the connecting rod.

Further, still including preventing touching the subassembly, prevent touching the subassembly including: a second fixed block is arranged on one side of the lower part of the shell; the first stop blocks are arranged on two sides of the second fixed block in a sliding manner; the third springs are connected between the second fixed block and the first stop block and sleeved on the first stop block; the second stop block is symmetrically arranged on one side of the lower part of the shell; the sliding blocks are arranged on the outer sides of the first blocking blocks in a sliding mode; the first stirring block is arranged on the outer side of the sliding block, and the second blocking block is matched with the first stirring block.

Further, still include the conversion subassembly, the conversion subassembly includes: the middle of one side of the shell is provided with a rack in a sliding way; one side of the upper part of the rack is provided with a limiting frame; the supporting frame is arranged on one side of the inner lower part of the shell; the upper part of the support frame is rotatably provided with a second gear which is meshed with the rack; a second rotating shaft is rotatably arranged on one side of the lower part of the powder charging tank; one side of the second rotating shaft is provided with a first gear; the spray heads are symmetrically arranged at the upper part and the lower part of one side of the second rotating shaft; the atomizer is arranged on one side inside the spray head on the upper side; the middle inside the upper side spray head is provided with a filter screen; a third rotating shaft is rotatably arranged on one side of the lower part of the explosive charging tank; and a third gear is arranged on one side of the third rotating shaft, and the third gear is meshed with the first gear and the second gear.

Further, still include and block the subassembly, block the subassembly and include: a fixing frame, a fixing frame at one side of the medicine charging tank; the transmission wheel is arranged at one side of the medicine containing tank in a symmetrical and rotating manner, and the transmission shaft of the transmission wheel at one side is rotatably connected with the fixing frame; one side of the transmission wheel transmission shaft on one side is provided with a second toggle block which is matched with the limiting frame; the transmission belt is arranged between the transmission wheels; a torsion spring is connected between one side of the transmission shaft of the transmission wheel on one side and the fixed frame; the baffle is arranged on one side of the transmission wheel transmission shaft on one side.

Furthermore, the device also comprises a limiting component, and the limiting component is arranged between the fixing rod on one side and one side of the inner lower part of the shell.

Further, spacing subassembly is including: the lower part of the fixed rod at one side of the wedge-shaped block is provided with the wedge-shaped block; a third fixed block is arranged on one side of the inner lower part of the shell; and a third toggle block is arranged on the upper part of the third fixed block in a sliding manner, the third toggle block is connected with the shell in a sliding manner, and the third toggle block is matched with the wedge block and the rack.

The beneficial effects are that: 1. according to the invention, the fixed rod is driven to slide forwards by pulling the trigger to rotate anticlockwise, so that the pulling rod and the pushing rod are driven to move forwards, the first spring is compressed, the liquid medicine is pushed out of the medicine charging tank, and the liquid medicine is sprayed at a position needing medicine feeding, so that the effect of easily pushing the liquid medicine out is achieved.

2. According to the invention, the limiting frame is driven to move rightwards, when the limiting frame contacts the second poking block, the second poking block is driven to rotate for 90 degrees, then the driving wheel and the driving belt are driven to rotate for 90 degrees, at the moment, the torsion spring deforms, and the baffle is driven to rotate for 90 degrees, so that the baffle can block the medicine outlet of the medicine containing tank, and the effect of avoiding waste of medicine liquid is achieved.

3. According to the invention, the fixed rod is driven to move forwards by pushing the trigger to rotate anticlockwise manually, and then the wedge-shaped block is driven to move forwards, so that the third shifting block is pushed to move forwards, the third shifting block is inserted into the opening on the rack, and finally the spray head can be fixed, and the effect of fixing the spray head is achieved.

Drawings

Fig. 1 is a schematic view of a first-angle perspective structure of the present invention.

Fig. 2 is a schematic diagram of a second-angle three-dimensional structure according to the present invention.

Fig. 3 is a schematic perspective view of the spraying mechanism of the present invention.

Fig. 4 is a schematic perspective view of the fixing mechanism of the present invention.

Fig. 5 is a schematic perspective view of the touch screen assembly of the present invention.

Fig. 6 is a schematic perspective view of the conversion assembly of the present invention.

Fig. 7 is a schematic perspective view of a barrier assembly according to the present invention.

Fig. 8 is a schematic perspective view of the spacing assembly of the present invention.

In the above drawings, 1, a handle, 11, a housing, 2, a spraying mechanism, 21, a trigger, 22, a first rotating shaft, 23, a pulling rod, 24, a sliding sleeve, 25, a fixing rod, 3, a pushing rod, 4, a first spring, 5, a medicine charging tank, 6, a fixing mechanism, 61, a first fixing block, 62, a clamping block, 63, a second spring, 64, a connecting rod, 7, a touch-proof component, 71, a second fixing block, 72, a first blocking block, 73, a third spring, 74, a first shifting block, 75, a sliding block, 76, a second blocking block, 8, a conversion component, 81, a spray head, 82, an atomizer, 83, a filter screen, 84, a first gear, 85, a second gear, 86, a rack, 87, a limiting frame, 88, a second rotating shaft, 89, a supporting frame, 810, a third gear, 811, a third rotating shaft, 9, a blocking component, 91, a baffle, 92, a torsion spring, 93, a transmission wheel, 94, a third rotating shaft, a rotating mechanism, The device comprises a transmission belt, 95, a second toggle block, 96, a fixed frame, 10, a limiting component, 1001, a third fixed block, 1002, a third toggle block, 1003 and a wedge-shaped block.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

Example 1

The utility model provides a medicine sprayer based on ear-nose-mouth wound is loaded with medicine, as shown in fig. 1 ~ 4, including handle 1, shell 11, spraying mechanism 2, catch bar 3, first spring 4, powder charge jar 5 and fixed establishment 6, 1 upper portion of handle is equipped with shell 11, upper portion left side is connected with powder charge jar 5 in the shell 11, 5 right side slidingtype of powder charge jar are equipped with catch bar 3, catch bar 3 and the inside spraying mechanism 2 that is equipped with of shell 11, be connected with first spring 4 between catch bar 3 and the powder charge jar 5, first spring 4 cover is on catch bar 3, 11 upper portion left sides of shell are equipped with fixed establishment 6.

When needs injection liquid medicine, at first place the medicine bottle on 5 upside openings of powder charge jar, make 6 functions of fixed establishment afterwards, fix the medicine bottle for in the liquid medicine can inject powder charge jar 5, manual promotion spraying mechanism 2 functions, drive catch bar 3 and remove left, make the liquid medicine can be released to the position that needs were loaded with medicine, reach the effect that can realize easily loading with medicine.

Spraying mechanism 2 is including trigger 21, first pivot 22, pulling rod 23 and sliding sleeve 24, and the symmetry is equipped with pulling rod 23 around the catch bar 3 right side, and the symmetry is equipped with two sliding sleeves 24 around 11 upper portions right sides of shell, and pulling rod 23 and sliding sleeve 24 sliding connection, and pulling rod 23 left side all is equipped with dead lever 25, and the rotary type is equipped with first pivot 22 between the left side of dead lever 25 lower part, is equipped with trigger 21 on the first pivot 22, trigger 21 and 11 sliding connection of shell.

The fixing mechanism 6 comprises a first fixing block 61, a clamping block 62, a second spring 63 and a connecting rod 64, the first fixing block 61 is symmetrically arranged on the left side of the upper portion of the shell 11 in a left-right mode, the connecting rod 64 is symmetrically arranged on the upper portion of the first fixing block 61 in a front-back mode, the clamping block 62 is connected between the connecting rods 64 on the left side and the right side, the second spring 63 is symmetrically connected between the clamping block 62 and the first fixing block 61 in a front-back mode, and the second spring 63 is sleeved on the connecting rod 64.

Firstly, the connecting rod 64 is pulled outwards to drive the clamping blocks 62 to move outwards, the second spring 63 is compressed, the medicine bottle is placed between the clamping blocks 62 at the moment, the connecting rod 64 is released, the clamping blocks 62 and the connecting rod 64 are driven to move inwards under the action of the second spring 63 so that the medicine bottle is clamped, then the medicine liquid is poured into the medicine filling tank 5, the trigger 21 is triggered to rotate anticlockwise to drive the fixing rod 25 to slide forwards so as to drive the pulling rod 23 and the pushing rod 3 to move forwards, the first spring 4 is compressed so that the medicine liquid is pushed out of the medicine filling tank 5, the medicine liquid is sprayed at the position needing medicine filling, after the medicine liquid is pushed out, the trigger 21 is released, the pulling rod 23 and the pushing rod 3 are driven to move backwards under the action of the first spring 4, then the fixing rod 25 is driven to move backwards, the trigger 21 is driven to rotate clockwise to recover to the original state, and after the medicine liquid in the medicine bottle is poured completely, can stimulate connecting rod 64 once more and remove to the outside, drive and press from both sides tight piece 62 and remove to the outside, take out the medicine bottle, loosen connecting rod 64 afterwards for connecting rod 64 and press from both sides tight piece 62 and remove to the inside, resume to original state, reach can easily push out the liquid medicine, with the tight effect of medicine bottle clamp.

Example 2

On the basis of embodiment 1, as shown in fig. 2 and fig. 5 to 8, the anti-touch device further includes an anti-touch component 7, the anti-touch component 7 includes a second fixed block 71, a first blocking block 72, a third spring 73, a first toggle block 74, a sliding block 75 and a second blocking block 76, the second fixed block 71 is disposed on the right side of the lower portion of the housing 11, the first blocking block 72 is slidably disposed on both the front and rear sides of the second fixed block 71, the third spring 73 is connected between the second fixed block 71 and the first blocking block 72, the third spring 73 is sleeved on the first blocking block 72, the second blocking block 76 is symmetrically disposed on the right side of the lower portion of the housing 11 in the front-back direction, the sliding block 75 is slidably disposed on the outer side of the first blocking block 72, the first toggle block 74 is disposed on the outer side of the sliding block 75, and the second blocking block 76 is matched with the first toggle block 74.

When the liquid medicine needs to be sprayed, the first toggle block 74 is pulled downwards, the first toggle block 74 moves downwards to drive the sliding block 75 and the first blocking block 72 to move downwards, the third spring 73 is compressed, so that the first blocking block 72 does not block the push rod 3 any more, when the first toggle block 74 moves downwards to the lower side of the second blocking block 76, the first toggle block 74 and the sliding block 75 move towards the right side, so that the second blocking block 76 blocks the first toggle block 74, the first toggle block 74 and the sliding block 75 are fixed, so that the first blocking block 72 is fixed, then the trigger 21 is pulled, the liquid medicine is sprayed, when the spraying is finished, the first toggle block 74 and the sliding block 75 are moved leftwards, so that the second blocking block 76 does not block the first toggle block 74 and the sliding block 75 any more, under the action of the third spring 73, the first toggle block 72, the first toggle block 74 and the sliding block 75 are driven to move upwards, so that the first blocking block 72 blocks the push rod 3 again, the effect of avoiding the false trigger 21 to make the liquid medicine spurt out is achieved.

The automatic atomizer comprises a conversion component 8, the conversion component 8 comprises a spray head 81, an atomizer 82, a filter screen 83, a first gear 84, a second gear 85, a rack 86, a limiting frame 87, a second rotating shaft 88, a supporting frame 89, a third gear 810 and a third rotating shaft 811, the rack 86 is arranged in the middle of the front side of the left part of a shell 11 in a sliding manner, the limiting frame 87 is arranged on the left side of the upper part of the rack 86, the supporting frame 89 is arranged on the left side of the inner lower part of the shell 11, the second gear 85 is rotatably arranged on the upper part of the supporting frame 89, the second gear 85 is meshed with the rack 86, the second rotating shaft 88 is rotatably arranged on the left side of the lower part of a medicine charging tank 5, the first gear 84 is arranged on the right side of the second rotating shaft 88, the spray heads 81 are symmetrically arranged on the upper and lower sides of the left side of the second rotating shaft 88, the atomizer 82 is arranged on the right side of the inner side of the upper spray head 81, the filter screen 83 is rotatably arranged in the middle of the inner side of the upper spray head 81, the left side of the lower part of the medicine charging tank 5 is rotatably arranged with a third rotating shaft 811, the left side of the third rotating shaft 811 is arranged with a third gear 810, the third gear 810 intermeshes with both the first gear 84 and the second gear 85.

In the initial state, when injecting the liquid medicine, it is vaporous liquid medicine to spray through filter screen 83 and atomizer 82, according to user's demand, manually pull rack 86 to the right side, drive second gear 85 and rotate, drive third gear 810 and first gear 84 afterwards and rotate, thereby drive second pivot 88 and rotate, finally make both sides shower nozzle 81 rotate 180 degrees, the liquid medicine that sprays this moment is liquid, when finishing using, pulling rack 86 removes left, drive second gear 85 antiport, drive third gear 810 and first gear 84 and second pivot 88 antiport afterwards, make both sides shower nozzle 81 rotate 180 degrees once more, reach the effect that can adjust shower nozzle 81 according to user's demand at will.

Still including blockking subassembly 9, it is including baffle 91 to block subassembly 9, torque spring 92, drive wheel 93, the drive belt 94, second stirring piece 95 and mount 96, the anterior left side mount 96 of medicine jar 5, it is equipped with 5 front sides bilateral symmetry rotary type of medicine jar and is equipped with drive wheel 93, left side drive wheel 93 transmission shaft is connected with mount 96 rotary type, right side drive wheel 93 transmission shaft front side is equipped with second stirring piece 95, second stirring piece 95 is mutually supported with spacing 87, be equipped with drive belt 94 between the drive wheel 93, be connected with torque spring 92 between left side drive wheel 93 transmission shaft front side and the mount 96, left side drive wheel 93 transmission shaft rear side is equipped with baffle 91.

When the pulling rack 86 moves rightwards, the limiting frame 87 is driven to move rightwards, when the limiting frame 87 contacts the second toggle block 95, the second toggle block 95 is driven to rotate 90 degrees, then the driving wheel 93 and the transmission belt 94 are driven to rotate 90 degrees, the torsion spring 92 deforms at the moment, the baffle plate 91 is driven to rotate 90 degrees, the baffle plate 91 can block a medicine outlet of the medicine containing tank 5, when the second toggle block 95 moves rightwards to be completely separated from the limiting frame 87, under the action of the torsion spring 92, the driving wheel 93 on the left side and the baffle plate 91 reversely rotate 90 degrees, the driving wheel 93 on the right side and the second toggle block 95 are driven to reversely rotate 90 degrees through the transmission belt 94, and the effect of avoiding waste of liquid medicine is achieved.

Still including spacing subassembly 10, spacing subassembly 10 is equipped with wedge 1003 including third fixed block 1001, third toggle block 1002 and wedge 1003, and the lower part of front side dead lever 25 is equipped with wedge 1003, and the lower part left side is equipped with third fixed block 1001 in the shell 11, and third fixed block 1001 upper portion slidingtype is equipped with third toggle block 1002, and third toggle block 1002 and shell 11 sliding connection, third toggle block 1002 mutually support with wedge 1003 and rack 86.

When the rack 86 moves rightwards to a certain position, the trigger 21 is manually pushed to rotate anticlockwise at the moment, the fixing rod 25 is driven to move forwards, the wedge-shaped block 1003 is driven to move forwards, the third toggle block 1002 is pushed to move forwards, the third toggle block 1002 is inserted into an opening in the rack 86, the rack 86 is fixed, and finally the spray head 81 can be fixed.

The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.