CN112602692B

CN112602692B - Hand-push type sprayer

Info

Publication number: CN112602692B
Application number: CN202011439153.8A
Authority: CN
Inventors: 陈光辉
Original assignee: Taizhou Qingfeng Machinery Co ltd
Current assignee: Taizhou Qingfeng Machinery Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2023-05-05
Anticipated expiration: 2040-12-08
Also published as: CN112602692A

Abstract

The application discloses hand-propelled sprayer relates to sprayer technical field, and it includes the shallow, and the shallow up end is equipped with the water storage tank, and the water storage tank is equipped with the water filling port; the cart is also provided with a water pumping device which is provided with a water inlet and a water outlet, the water inlet of the water pumping device is communicated with the water storage tank, and the water outlet of the water pumping device is communicated with the water outlet pipe; wherein still be equipped with stirring subassembly in the water storage tank, stirring subassembly is including rotating the (mixing) shaft of connecting in the water storage tank and setting up a plurality of stirring leaves on the (mixing) shaft, and the water storage tank is worn out to the lower extreme of (mixing) shaft. Through setting up stirring assembly, can accomplish the mixing of liquid medicine in the water storage tank for the configuration of liquid medicine is more convenient.

Description

Hand-push type sprayer

Technical Field

The application relates to the technical field of sprayers, and more particularly, to a hand-push type sprayer.

Background

The sprayer is a common agricultural machinery used in agriculture and forestry, and is used for pumping and outputting liquid medicine with certain pressure through a water pump, and then spraying the liquid medicine with certain pressure into mist through a spray gun, and then uniformly spraying the mist onto crops to prevent and treat diseases and insect pests.

The Chinese patent with the patent number of CN206824054U discloses a hand-push type sprayer, which comprises a trolley and a water tank arranged on the trolley, wherein the trolley comprises a push rod, a driving box is arranged on the push rod and positioned at the side wall of the water tank, a battery cavity for installing a battery and a water pumping cavity for installing a water pump are arranged in the driving box, and the battery cavity is positioned above the water pumping cavity.

In view of the above-mentioned related art, the inventors consider that the liquid medicine is stored in the water tank, but when the liquid medicine is actually disposed, it is generally necessary to add a certain amount of water into an external container, then add the medicine particles into the container according to a certain proportion, then mix the medicine particles by stirring, and then introduce the liquid medicine into the water tank by guiding the medicine through a tool such as a funnel, so that the liquid medicine disposed in the water tank is troublesome and needs to be improved.

Disclosure of Invention

In order to solve the problem that the liquid medicine in the water tank is troublesome to be allocated, the application provides a hand-push type sprayer.

The application provides a hand propelled atomizer adopts following technical scheme:

the hand-push type sprayer comprises a cart, wherein a water storage tank is arranged on the upper end face of the cart, and a water filling port is arranged on the water storage tank; the cart is also provided with a water pumping device, the water pumping device is provided with a water inlet and a water outlet, the water inlet of the water pumping device is communicated with the water storage tank, and the water outlet of the water pumping device is communicated with the water outlet pipe; the stirring assembly comprises a stirring shaft rotatably connected to the water storage tank and a plurality of stirring blades arranged on the stirring shaft, and the lower end of the stirring shaft penetrates out of the water storage tank.

Through above-mentioned technical scheme, set up stirring subassembly, when the liquid medicine of needs configuration, directly introduce the water into the water storage tank through the water pipe in, then add granular medicine, rotate through the (mixing) shaft and drive the stirring leaf stirring and make the liquid medicine mix can, need not mix in external container after adding the water storage tank again for the configuration of liquid medicine is more convenient.

Optionally, the shallow includes the loading board, rotates the pivot of being connected on the loading board and is fixed in the runner of pivot, the (mixing) shaft wears to establish the loading board, the pivot is equipped with first bevel gear, be equipped with on the (mixing) shaft with first bevel gear engaged second bevel gear.

Through above-mentioned technical scheme, set up first bevel gear and second bevel gear, drive the stirring axle through the rotation of runner and rotate the stirring that realizes the stirring leaf, during the in-service use, remove through promoting the shallow, can accomplish the mixing of liquid medicine at the shallow removal in-process for the configuration of liquid medicine is more convenient.

Optionally, the rotating shaft includes a first shaft portion, a second shaft portion and a third shaft portion, which are coaxially arranged, the first shaft portion and the second shaft portion are all in a circular tube shape and are rotationally connected with the bearing plate, and the rotating wheel is arranged on the first shaft portion and the second shaft portion; the first bevel gear is coaxially fixed on a third shaft part, the third shaft part is cylindrical, one end of the third shaft part is slidably inserted into the first shaft part, the other end of the third shaft part is slidably inserted into the second shaft part, a spline hole is arranged in the first shaft part, and an insert matched with the spline hole is fixed at one end of the third shaft part, which is close to the first shaft part; the third shaft part is also provided with a tight-supporting spring, and the elastic force of the tight-supporting spring presses the third shaft part so that the embedded block is embedded into the spline hole;

the third shaft part is also coaxially fixed with a third bevel gear, the third bevel gear is positioned on one side of the first bevel gear, which is close to the first shaft part, the tooth surfaces of the third bevel gear and the first bevel gear are opposite, one end, which is close to the second shaft part, of the third shaft part penetrates out of the second shaft part, one end, which penetrates out of the second shaft part, of the third shaft part is in threaded connection with an adjusting block, the adjusting block rotates to tightly support the second shaft part to release the insert from the splined hole, so that the first bevel gear is disengaged from the second bevel gear, and the third bevel gear is engaged with the second bevel gear.

Through above-mentioned technical scheme, when needs rotate through the runner and drive stirring subassembly stirring, support tight spring and imbed the spline hole with the abaculus, first shaft portion and third shaft portion synchronous rotation this moment can also drive the rotation of third shaft portion when the runner rotates and drives first shaft portion rotation for the removal of shallow just can realize stirring subassembly's stirring.

When hand propelled atomizer has been in needs watering the department, hand propelled atomizer does not need to remove this moment, can make the third axial portion overcome the elasticity removal that supports tight spring through rotating the regulating block and make the abaculus deviate from the splined hole this moment, then make first bevel gear and second bevel gear disengage the meshing and make third bevel gear and second bevel gear meshing, rotate the third axial portion and can not drive the runner this moment, can drive the (mixing) shaft through rotating the third axial portion and rotate and realize stirring, can realize operating stirring subassembly work under the motionless circumstances of shallow this moment for holistic use is more convenient.

Optionally, a first force slot is further formed at one end of the third shaft portion penetrating through the second shaft portion.

Through the technical scheme, the first force application groove is arranged, and can be used for loading an external force application rod, so that the rotation operation of the third shaft part is more convenient.

Optionally, the cart is further rotationally connected with a winding roller, one axial end of the winding roller is provided with a second force groove, the shape and the size of the second force groove are the same as those of the first force groove, the winding roller is provided with a force bar, and the force bar is fixed with a bump for being embedded into the second force groove.

Through above-mentioned technical scheme, set up and put up second, put up and the lug of putting up, put up the lug of putting up and put up the cooperation and realize the coiling recovery of spray pipe with putting up second, put up the lug of putting up and put up in addition and put up in order to drive the rotation of third axial region with putting up first cooperation to make holistic use more convenient.

Optionally, a first permanent magnet is fixed at one end of the bump away from the force bar, and a second permanent magnet adsorbed by the first permanent magnet is fixed at the bottom of the second force groove.

Through above-mentioned technical scheme, set up first permanent magnet and second permanent magnet for the force bar can be fixed more stably, also makes the dismantlement operation of force bar more convenient simultaneously.

Optionally, an axial thrust bearing is further arranged between the adjusting block and the second shaft part.

Through above-mentioned technical scheme, set up axial thrust bearing for frictional force between regulating block and the second shaft portion is littleer, makes the rotation of third shaft portion more smooth and easy, also can reduce the in-process of rotation of third shaft portion and lead to regulating block for the pivoted condition of third shaft portion simultaneously, makes holistic use more stable.

Optionally, the water storage tank comprises a bottom plate fixed on the cart and a tank body covered on the bottom plate, and the water filling port is arranged on the tank body; the bottom plate up end is fixed with the bulge loop, the terminal surface is offered under the box supplies the annular of bulge loop embedding, the lateral wall of box still is equipped with the fixed plate, the fixed plate wears to be equipped with the fixing bolt with bottom plate threaded connection.

Through above-mentioned technical scheme, set up bottom plate and box, the box passes through the cooperation of bulge loop and annular and realizes the location, then is fixed through fixing bolt for it is more convenient that the assembly of box and bottom plate.

Optionally, a sealing ring is embedded in the ring groove, and the convex ring abuts against the sealing ring.

Through above-mentioned technical scheme, set up the sealing ring, the sealing effect of box and bottom plate can be strengthened to the sealing ring, reduces the condition of weeping.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) The stirring assembly is arranged, so that the liquid medicine is more convenient to prepare;

(2) Through the arrangement of the first bevel gear and the second bevel gear, the stirring and mixing of the liquid medicine can be completed in the moving process of the cart, so that the liquid medicine is more convenient to prepare;

(3) Through setting up first shaft portion, second shaft portion, third bevel gear, splined hole, abaculus, support tight spring and regulating block for the shallow removes and can realize stirring subassembly's stirring, also can realize stirring subassembly's stirring when the shallow does not remove, makes holistic use more convenient.

Drawings

FIG. 1 is an overall schematic of an embodiment;

FIG. 2 is an exploded view of an embodiment;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic view of a spindle structure according to an embodiment;

fig. 5 is a schematic partial cross-sectional view of an embodiment.

Reference numerals: 1. a cart; 11. a carrying plate; 12. a rotating shaft; 121. a first shaft portion; 122. a second shaft portion; 123. a third shaft portion; 13. a rotating wheel; 2. a water storage tank; 21. a bottom plate; 211. a convex ring; 212. a threaded hole; 22. a case; 221. a ring groove; 3. a water pumping device; 31. a plunger pump; 32. a driving member; 4. a seal ring; 5. a fixing plate; 6. a fixing bolt; 7. a water outlet pipe; 8. a water spray pipe; 9. a wire winding roller; 10. a second adhesive force groove; 14. a second permanent magnet; 15. a force bar; 16. a bump; 17. a first permanent magnet; 18. a stirring assembly; 181. a stirring shaft; 182. stirring the leaves; 19. a second bevel gear; 23. a first bevel gear; 24. a third bevel gear; 25. a spline hole; 26. an insert; 27. a spring is abutted tightly; 28. an adjusting block; 29. an axial thrust bearing; 30. and a first force groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses hand-propelled sprayer, as shown in fig. 1, including shallow 1, water storage tank 2 and pump water installation 3.

The cart 1 comprises a bearing plate 11, a rotating shaft 12 rotatably connected to the bearing plate 11, and a rotating wheel 13 arranged on the rotating shaft 12. In this embodiment, two rotating shafts 12 are provided, the two rotating shafts 12 are distributed along the length direction of the bearing plate 11, the axes of the two rotating shafts 12 are arranged in parallel, four rotating wheels 13 are provided, and the four rotating wheels 13 are respectively fixed at the end parts of the rotating shafts 12 correspondingly. The bearing plate 11 is also fixed with a push rod, the push rod is pushed to enable the bearing plate 11 to move, and in the moving process of the bearing plate 11, the four rotating wheels 13 rotate, so that the movement of the cart 1 is more convenient.

As shown in fig. 2, the water storage tank 2 is disposed on the upper end surface of the carrying plate 11 of the cart 1, and the water storage tank 2 is disposed above one of the rotating shafts 12. The water storage tank 2 comprises a bottom plate 21 and a tank body 22, the bottom plate 21 is fixed on the upper end face of the bearing plate 11 of the cart 1, a convex ring 211 is fixed on the upper end face of the bottom plate 21, and the convex ring 211 is in a circular ring shape. The upper end surface of the bottom plate 21 is also provided with a plurality of threaded holes 212, and the threaded holes 212 are positioned on the outer side of the convex ring 211.

The box 22 is cylindrical, a water filling port is formed in the upper end of the box 22, and a sealing cover is connected to the water filling port through threads. The lower end of the box body 22 is in an opening shape, the lower end surface of the box body 22 is also provided with a ring groove 221, the ring groove 221 corresponds to the shape of the convex ring 211, the ring groove 221 is embedded with a sealing ring 4, and the sealing ring 4 is made of rubber. The outer side wall of the box 22 is also fixed with a fixing plate 5, the fixing plate 5 is annular, a plurality of fixing bolts 6 are arranged on the fixing plate 5 in a penetrating mode, and the number of the fixing bolts 6 is the same as that of the threaded holes 212 and the positions of the fixing bolts are in one-to-one correspondence.

When the case 22 and the bottom plate 21 are spliced, the annular groove 221 is aligned with the convex ring 211, so that the convex ring 211 presses the sealing ring 4 to the bottom of the annular groove 221 to strengthen the sealing. The case 22 is then fixed to the bottom plate 21 by screwing each fixing bolt 6 into the corresponding screw hole 212 and pressing the fixing plate 5 against the carrier plate 11 by the fixing bolt 6.

As shown in fig. 1, the water pumping device 3 includes a plunger pump 31 provided on an upper end surface of the carrier plate 11 of the cart 1, and a driving member 32 for driving the plunger pump 31 to operate, wherein the driving member 32 is a gasoline engine or a diesel engine. The plunger pump 31 is provided with a water inlet and a water outlet, the water inlet is communicated to the bottom of the water storage tank 2 through a conduit, and the water outlet is communicated with the water outlet pipe 7. When in actual use, the driving piece 32 drives the plunger pump 31 to operate, and the plunger pump 31 pumps the liquid medicine in the water storage tank 2 to the water outlet through the water inlet and discharges the liquid medicine.

Still rotate on cart 1 and be connected with wire winding roller 9, during actual operation, the one end that plunger pump 31 was kept away from to outlet pipe 7 communicates to wire winding roller 9 axial one end, and wire winding roller 9 connects outlet pipe 7's tip and is equipped with rotary joint, and wire winding roller 9 passes through rotary joint and outlet pipe 7 rotation to be connected for wire winding roller 9 rotates can not lead to outlet pipe 7 to rotate. There is water guide channel in the coiling roller 9, still is fixed with spray pipe 8 at the lateral wall of coiling roller 9, and water guide channel makes water outlet pipe 7 and spray pipe 8 intercommunication, and the one end that the spray pipe 8 kept away from coiling roller 9 is used for connecting the shower nozzle. During the in-service use, take out the spray pipe 8 through pumping water installation 3 with the liquid medicine in the water storage tank 2, spray from the shower nozzle in order to realize the sprinkling irrigation at last, spray pipe 8 is longer, can accomodate spray pipe 8 through rotating winding roller 9.

As shown in fig. 3, the axial end of the winding roller 9 far from the water outlet pipe 7 is coaxially provided with a second force groove 10, and the second force groove 10 is square in shape. A second permanent magnet 14 is fixed at the bottom of the second force groove 10. The winding roller 9 is provided with an adhesive force rod 15, the adhesive force rod 15 is fixedly provided with a bump 16, the shape of the bump 16 corresponds to that of the adhesive force groove II 10, one end of the bump 16, which is far away from the adhesive force rod 15, is fixedly provided with a first permanent magnet 17, and the first permanent magnet 17 is used for being adsorbed on the second permanent magnet 14. When the force bar 15 is embedded into the force groove two 10 through the convex block 16 to realize connection, the first permanent magnet 17 and the second permanent magnet 14 are adsorbed, so that the installation of the force bar 15 is more stable, and then the force bar 15 can be operated to drive the winding roller 9 to rotate.

As shown in fig. 2, a stirring assembly 18 is further provided in the water storage tank 2, and the stirring assembly 18 includes a stirring shaft 181 rotatably connected to the water storage tank 2 and a plurality of stirring blades 182 fixed to the stirring shaft 181. The axis of the stirring shaft 181 is vertically arranged, and the lower end of the stirring shaft 181 penetrates out of the bottom plate 21 of the water storage tank 2 and penetrates through the bearing plate 11. The stirring shaft 181 and the bottom plate 21 of the water storage tank 2 are sealed by mechanical sealing, so that leakage of liquid medicine in the water storage tank 2 through a gap between the stirring shaft 181 and the bottom plate 21 is reduced. The stirring shaft 181 can rotate relative to the bearing plate 11, and a second bevel gear 19 is coaxially fixed at one end of the stirring shaft 181 below the bearing plate 11.

Referring to fig. 4, in the two rotating shafts 12, the rotating shaft 12 located below the water storage tank 2 includes a first shaft portion 121, a second shaft portion 122 and a third shaft portion 123, the first shaft portion 121 and the second shaft portion 122 are all in a circular tube shape, the third shaft portion 123 is in a cylindrical shape, and axes of the first shaft portion 121, the second shaft portion 122 and the third shaft portion 123 are all overlapped. The first shaft portion 121 and the second shaft portion 122 are both rotatably connected to the carrier plate 11. The third shaft portion 123 is connected between the first shaft portion 121 and the second shaft portion 122, and one end of the third shaft portion 123 is slidably inserted into the first shaft portion 121 and the other end is slidably inserted into the second shaft portion 122. The third shaft portion 123 is further coaxially fixed with a first bevel gear 23 and a third bevel gear 24, the first bevel gear 23 and the third bevel gear 24 are located between the first shaft portion 121 and the second shaft portion 122, and the first bevel gear 23 is located on a side of the third bevel gear 24 away from the first shaft portion 121. The first bevel gear 23 and the third bevel gear 24 are identical in shape and are arranged with the tooth surfaces facing each other, and the second bevel gear 19 is located between the first bevel gear 23 and the third bevel gear 24.

Referring to fig. 5, a splined hole 25 is provided in the first shaft portion 121, an insert 26 is fixed to an end of the third shaft portion 123 adjacent to the first shaft portion 121, the shape of the insert 26 corresponds to the splined hole 25, and the insert 26 is engaged with the splined hole 25. The third shaft portion 123 is further sleeved with a tightening spring 27, the tightening spring 27 is located on one side, far away from the third bevel gear 24, of the first bevel gear 23, one end of the tightening spring 27 is fixed to the first bevel gear 23, the other end of the tightening spring is fixedly connected to the second shaft portion 122, and the elastic force of the tightening spring 27 presses the third shaft portion 123 to enable the insert 26 to be embedded into the spline hole 25.

One end of the third shaft part 123, which is close to the second shaft part 122, penetrates through the second shaft part 122, one end of the third shaft part 123, which penetrates through the second shaft part 122, is in threaded connection with the adjusting block 28, an axial thrust bearing 29 is further arranged between the adjusting block 28 and the second shaft part 122, and the adjusting block 28 is abutted against the end face, far away from the first shaft part 121, of the second shaft part 122 through the axial thrust bearing 29.

Referring to fig. 2, a first force groove 30 is further formed at an end of the third shaft portion 123 penetrating the second shaft portion 122, the shape and size of the first force groove 30 are the same as those of the second force groove 10, and the first force groove 30 can be used for embedding the bump 16 of the force bar 15.

The working principle of the embodiment is as follows:

when the medicine liquid needs to be stirred, when the cart 1 moves, the insert 26 is correspondingly inserted into the spline hole 25, at this time, the first shaft part 121 and the third shaft part 123 cannot rotate relatively, at this time, the first bevel gear 23 is meshed with the second bevel gear 19, and the third bevel gear 24 is not meshed with the second bevel gear 19. Then when pushing the cart 1 to move, the cart 1 moves to enable the rotating wheel 13 to rotate, the rotating wheel 13 rotates to drive the first shaft part 121 and the third shaft part 123 to rotate, and the stirring shaft 181 is driven to rotate through the transmission of the first bevel gear 23 and the second bevel gear 19 so that the stirring blades 182 stir and mix the liquid medicine.

When the cart 1 is not moving and the liquid medicine needs to be stirred, the third shaft part 123 is moved against the elastic force of the abutting spring 27 by rotating the adjusting block 28, so that the insert 26 is separated from the spline hole 25. When the insert 26 and the splined hole 25 are disengaged, the first bevel gear 23 is disengaged from the second bevel gear 19, so that the third bevel gear 24 and the second bevel gear 19 are engaged, at this time, the first shaft portion 121 and the third shaft portion 123 can rotate relatively, and the third shaft portion 123 can be driven to rotate by removing the force bar 15 from the force groove two 10 and inserting the bump 16 into the force groove one 30, at this time, the third shaft portion 123 drives the third bevel gear 24 to rotate, and the stirring assembly 18 is driven to stir by the transmission of the third bevel gear 24 and the second bevel gear 19.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A hand propelled sprayer, characterized in that: the device comprises a trolley (1), wherein a water storage tank (2) is arranged on the upper end surface of the trolley (1), and a water filling port is arranged on the water storage tank (2); the water pump device (3) is further arranged on the trolley (1), the water pump device (3) is provided with a water inlet and a water outlet, the water inlet of the water pump device (3) is communicated with the water storage tank (2), and the water outlet of the water pump device (3) is communicated with the water outlet pipe (7); the novel water storage device is characterized in that a stirring assembly (18) is further arranged in the water storage tank (2), the stirring assembly (18) comprises a stirring shaft (181) connected to the water storage tank (2) in a rotating mode and a plurality of stirring blades (182) arranged on the stirring shaft (181), the lower end of the stirring shaft (181) penetrates out of the water storage tank (2), the cart (1) comprises a bearing plate (11), a rotating shaft (12) connected to the bearing plate (11) in a rotating mode and a rotating wheel (13) fixed to the rotating shaft (12), the stirring shaft (181) penetrates through the bearing plate (11), the rotating shaft (12) is provided with a first bevel gear (23), and a second bevel gear (19) meshed with the first bevel gear (23) is arranged on the stirring shaft (181).

The rotating shaft (12) comprises a first shaft part (121), a second shaft part (122) and a third shaft part (123) which are coaxially arranged, the first shaft part (121) and the second shaft part (122) are all in a circular tube shape and are rotationally connected with the bearing plate (11), and the rotating wheel (13) is arranged on the first shaft part (121) and the second shaft part (122); the first bevel gear (23) is coaxially fixed on a third shaft part (123), the third shaft part (123) is cylindrical, one end of the third shaft part (123) is slidably inserted into the first shaft part (121) and the other end is slidably inserted into the second shaft part (122), a spline hole (25) is arranged in the first shaft part (121), and an insert (26) matched with the spline hole (25) is fixed at one end, close to the first shaft part (121), of the third shaft part (123); the third shaft part (123) is also provided with a propping spring (27), and the elastic force of the propping spring (27) presses the third shaft part (123) so that the embedded block (26) is embedded into the spline hole (25);

the third shaft part (123) is also coaxially fixed with a third bevel gear (24), the third bevel gear (24) is positioned on one side of the first bevel gear (23) close to the first shaft part (121), the third bevel gear (24) is opposite to the tooth surface of the first bevel gear (23), one end of the third shaft part (123) close to the second shaft part (122) penetrates out of the second shaft part (122), one end of the third shaft part (123) penetrating out of the second shaft part (122) is in threaded connection with an adjusting block (28), and the adjusting block (28) rotates to abut against the second shaft part (122) to release the insert (26) from the spline hole (25), so that the first bevel gear (23) is disengaged from the second bevel gear (19) and the third bevel gear (24) is engaged with the second bevel gear (19); an axial thrust bearing (29) is further arranged between the adjusting block (28) and the second shaft part (122);

the one end that third shaft portion (123) worn out second shaft portion (122) still has offered and has acted as go-between first (30), still rotate on shallow (1) and be connected with wire winding roller (9), wire winding roller (9) axial one end is equipped with and acts as go-between second (10), act as go-between second (10) shape and size with act as go-between first (30) the same, be equipped with on wire winding roller (9) and act as go-between (15) are fixed with and are used for the embedding act as go-between lug (16) of second (10).

2. A hand propelled sprayer according to claim 1 and wherein: one end of the bump (16) far away from the force bar (15) is fixed with a first permanent magnet (17), and the bottom of the force groove II (10) is fixed with a second permanent magnet (14) adsorbed by the first permanent magnet (17).

3. A hand propelled sprayer according to claim 1 and wherein: the water storage tank (2) comprises a bottom plate (21) fixed on the trolley (1) and a tank body (22) covered on the bottom plate (21), and the water inlet is formed in the tank body (22); the novel anti-theft box is characterized in that a convex ring (211) is fixed on the upper end face of the bottom plate (21), a ring groove (221) for embedding the convex ring (211) is formed in the lower end face of the box body (22), a fixing plate (5) is further arranged on the outer side wall of the box body (22), and a fixing bolt (6) in threaded connection with the bottom plate (21) is arranged in the fixing plate (5) in a penetrating mode.

4. A hand propelled sprayer according to claim 3 and wherein: the annular groove (221) is embedded with a sealing ring (4), and the convex ring (211) is abutted against the sealing ring (4).