CN212663258U - Multifunctional foam generator - Google Patents

Abstract

The utility model relates to a multifunctional foam generator made of metal, which comprises a liquid preparation part and a gas mixing part; the liquid preparation part sequentially comprises a water inlet end, a medicine inlet section and a foam generation section from left to right; the center of the liquid preparation part is a water-medicine mixing hole which consists of a water inlet threaded hole, a conical shrinkage hole, a water-medicine mixing straight hole and a mixing hole; the gas mixing part sequentially comprises a gas inlet end, a mixing section and a water outlet end from left to right; the center of the gas mixing part consists of 3 cylindrical holes, and a liquid-gas mixing hole, a transition hole and a water outlet threaded hole are sequentially arranged from left to right; the foam generation section of the liquid preparation part is inserted into the liquid-gas mixing hole of the gas mixing part, and the right end face of the medicine inlet section of the liquid preparation part is closely attached to the left end face of the gas inlet end of the gas mixing part and welded into a whole. This multi-functional foam generator can use multiple liquid medicine simultaneously, and the leakproofness is good, and air, liquid medicine and water intensive mixing and foam are even abundant.

Description

Multifunctional foam generator

Technical Field

The utility model relates to a foam mixes liquid generating device, especially relates to a multi-functional foam generator of high pressure cleaning equipment that workplace of trades such as food and medicine used.

Background

High-pressure cleaning equipment is widely applied to cleaning courtyards, buildings, vehicles, workplaces and the like, and in order to achieve a better cleaning effect, foam is generally needed to be sprayed on cleaning objects, and disinfectant foam is needed to be sprayed on the cleaning objects in workplaces of the industries of food, medicine and the like for disinfection. A foam generator is a device for generating foam, which sucks cleaning or sterilizing liquid (hereinafter, referred to as liquid medicine) and air into a pipe by the venturi effect principle and sufficiently mixes the liquid medicine and water in the pipe. The abundance or non-abundance of the foam depends on the mixing ratio of air, the liquid medicine and water, and whether or not the mixing is sufficiently performed.

Chinese patent document CN207071370U (application No. 201720467616.9) discloses a foam generator for a high pressure washer, which comprises a cleaning bottle, a liquid suction pipe, a four-way body, a venturi, a connection pipe and a vibration body, wherein the four-way body is a foam generator base body, and has an inner hole with a plurality of steps for installing the vibration body, the venturi and the connection pipe, the cleaning bottle and the liquid suction pipe are installed on one side of the four-way body provided with liquid suction through holes in the radial direction, the connection pipe is used for connecting the foam generator with a gun handle to introduce water flow into the foam generator, the vibration body generates foam, the venturi has liquid suction holes and air suction holes at the same time, air, cleaning liquid and water sucked by the venturi are flushed to the vibration body at high speed, and the cleaning liquid, the air and the water are fully mixed under the action of the vibration body to generate rich foam.

Chinese patent document CN204544526U (application No. 201520129090.4) discloses a foam generator for a high pressure cleaner, which comprises a liquid storage bottle, wherein foam liquid is contained in the liquid storage bottle, a nozzle base is installed on the bottle mouth of the liquid storage bottle, one end of the nozzle base is provided with a water inlet joint, a water inlet hole is formed in the water inlet joint, the other end of the nozzle base is connected with a nozzle, a suction pipe joint is formed in the nozzle base, a suction pipe is installed on the suction pipe joint, the suction pipe extends into the foam liquid, the nozzle base is provided with a pressurizing mixing cavity, the water inlet hole is provided with a pressurizing shrinkage hole, the pressurizing mixing cavity and the suction pipe are communicated, and the bottom of the suction pipe is provided with a suction head flow control.

However, the existing foam generator has some defects, one is that the liquid medicine is single, and only one liquid medicine, such as cleaning liquid, can be used at a time; secondly, the main body part of the foam generator is a plastic part and is sealed by glue, so that the sealing performance is poor, the pressure of each flow passage in the foam generator is unstable, and the foam is uneven and rich; thirdly, the design of the flow channel is unreasonable, so that the liquid medicine, the air and the water can not be fully mixed, the foam generation is less, and the cleaning effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art, providing a multifunctional foam generator which can use a plurality of liquid medicines simultaneously, has good sealing performance, and can fully mix air, liquid medicine and water and ensure that the foam is uniform and rich.

Realize the utility model discloses the technical scheme of purpose is: a multifunctional foam generator made of metal comprises a liquid preparation part and a gas mixing part.

The liquid preparation part sequentially comprises a water inlet end, a medicine inlet section and a foam generation section from left to right; the center of the liquid preparation part is a water-medicine mixing hole which consists of a water inlet threaded hole, a conical shrinkage hole, a water-medicine mixing straight hole and a mixing hole; the water inlet end, the medicine inlet section and the foam generation section are integrated.

The gas mixing part sequentially comprises a gas inlet end, a mixing section and a water outlet end from left to right; the air inlet end, the mixing section and the water outlet end are integrated; the center of the gas mixing part consists of 3 cylindrical holes, and the gas-liquid mixing hole, the transition hole and the water outlet threaded hole are arranged from left to right in sequence.

The foam generation section of the liquid preparation part is inserted into the liquid-gas mixing hole of the gas mixing part, and the right end face of the medicine inlet section of the liquid preparation part is closely attached to the left end face of the gas inlet end of the gas mixing part and welded into a whole.

Further, the water inlet end is a cylindrical tubular part;

the medicine feeding section is a cylinder which is coaxial with the water inlet end and is in a regular polygon shape, and the left side of the medicine feeding section is smoothly connected with the outer cylindrical surface of the water inlet end.

The foam generation section is a cylindrical tubular part coaxial with the water inlet end and the medicine inlet section.

The outer side surface of the foam generation section is a step-shaped cylinder with the outer diameter changing from left to right; the step-shaped cylinder comprises a first cylinder, a second cylinder and a third cylinder;

the left side of the step-shaped column is a first column, and the left end of the first column is smoothly connected with the medicine feeding section into a whole.

To the right of the first cylinder is a second cylinder, having a diameter D3, slightly smaller than the diameter D2 of the first cylinder.

The right side of the second cylinder is a third cylinder.

Furthermore, a water inlet threaded hole is formed in the axis line of the water inlet end.

The axial lead of the medicine inlet section is a conical shrinkage cavity which gradually shrinks from left to right, and the left side of the conical shrinkage cavity is communicated with a water inlet threaded hole at the water inlet end.

The center part of one face of the regular polygon of the medicine inlet section is provided with a medicine inlet hole which is vertically crossed with the axial lead of the medicine inlet section, namely the axial lead of the medicine inlet hole is vertically crossed with the axial lead of the medicine inlet section, and the medicine inlet hole is communicated with the small end of the conical shrinkage cavity.

The face of the regular polygon on the outer side of the medicine inlet section, which is provided with the medicine inlet hole, is provided with a medicine inlet threaded hole which is coaxial with the medicine inlet hole, and the medicine inlet hole is communicated with the medicine inlet threaded hole.

After the conical shrinkage cavity is intersected with the medicine inlet hole, the water-medicine mixed straight hole extends rightwards, and the diameter d4 of the water-medicine mixed straight hole is slightly larger than the diameter d2 of the small end of the conical shrinkage cavity until the water-medicine mixed straight hole is communicated with the mixed hole of the foam generation section.

The axis line of the foam generation section is provided with a mixing hole which is communicated from left to right, and the mixing hole consists of a foam front taper hole, a foam front straight hole and a foam rear straight hole which are communicated from left to right.

The left end of the mixing hole is a foam front taper hole which is communicated with the water-medicine mixing straight hole of the medicine feeding section and is gradually enlarged from left to right, the right side of the foam front taper hole is a foam front straight hole taking the diameter of the large end of the foam front taper hole as the diameter, and the diameter of the small end of the foam front taper hole is consistent with the diameter d4 of the water-medicine mixing straight hole; the right side of the foam front straight hole is communicated with the foam rear straight hole, the diameter d6 of the foam rear straight hole is slightly larger than the diameter d5 of the foam front straight hole, and the foam rear straight hole extends rightwards until penetrating through the foam generation section.

Two air inlets which are vertically intersected with the axial lead of the foam generation section and radially penetrate through the foam generation section are arranged at the position, close to the right side, of the second cylinder, and the two air inlets are mutually and axially vertical.

Furthermore, the regular polygon of the medicine feeding section is opposite to the face with a medicine feeding hole and a medicine feeding threaded hole, the medicine feeding hole and the medicine feeding threaded hole are symmetrically intersected with the axial lead of the medicine feeding section in a vertical mode, and the two medicine feeding holes are intersected with the small end of the conical shrinkage cavity.

Furthermore, the air inlet hole is a transverse long waist hole.

The shape of the air inlet end of the air mixing part is a regular polygon cylinder; the mixing section is cylindrical in shape.

The right side of the air inlet end is smoothly connected with the outer cylindrical surface of the mixing section.

Furthermore, the axial lead of the gas mixing part consists of 3 cylindrical holes, the left side is a liquid-gas mixing hole, the middle is a transition hole, and the right side is a water outlet threaded hole; the diameter D7 of the liquid-gas mixing hole is slightly larger than the diameter D2 of the first cylinder; the diameter d8 of the transition hole is slightly smaller than the diameter d7 of the liquid-gas mixing hole; the length a9 of the liquid-gas mixing hole is slightly shorter than the length A6 of the foam generation section.

The central part of one surface of the air inlet end is provided with a compressed air inlet hole which is vertically crossed with the axial lead of the air mixing part; the compressed air inlet hole is intersected and communicated with the liquid-gas mixing hole; the surface of the regular polygon on the outer side of the air inlet end, which is provided with the compressed air inlet hole, is provided with an air inlet threaded hole which is coaxial with the compressed air inlet hole, and the compressed air inlet hole is communicated with the air inlet threaded hole.

Still further, the overall length a10 of the foam generator is between 155 mm and 165 mm, preferably 161 mm.

The outer circle diameter D1 of the water inlet end is 24 mm to 30 mm, and is preferably 26 mm; the length A2 from the left end face of the water inlet end to the axial lead of the medicine inlet hole is 30 mm-38 mm, and preferably 34 mm;

the opposite thickness A1 of the regular polygonal cylinder of the medicine feeding section is 45-53 mm, and preferably 47 mm; the length a3 of the medicine feeding section is 18 mm to 22 mm, and preferably 20 mm.

The diameter d1 of the large end of the conical shrinkage cavity is 3 mm to 5 mm, and is preferably 4 mm; the diameter d2 of the small end of the conical shrinkage cavity is 2 mm to 3 mm, and preferably 2.5 mm; the length a2 of the conical shrinkage cavity is 13-17 mm, and preferably 15 mm.

The diameter d3 of the medicine inlet hole is 1.5 mm-2.5 mm, and preferably 2 mm.

The diameter d4 of the water-medicine mixing straight hole is larger than the diameter d2 of the small end of the conical shrinkage hole by 0.3 mm to 0.7 mm, and is preferably larger than 0.55 mm.

The large-end diameter d5 of the front tapered foam hole is 3.5 mm to 4.5 mm, and is preferably 4 mm.

The length a4 of the water-medicine mixing straight hole is 11 mm to 13 mm, and preferably 12 mm; the length a5 of the front tapered holes of the foam is 8 mm to 9 mm, and 8.5 mm is preferred.

The length a6 of the straight hole before foaming is 16-20 mm, and is preferably 18 mm.

The diameter d6 of the post-foaming straight cells is greater than the diameter d5 of the pre-foaming straight cells by 0.3 mm to 0.7 mm, preferably by 0.5 mm.

The diameter D2 of the first cylinder is between 14 mm and 16 mm, preferably 15 mm; the length a4 of the first cylinder is 1.5 mm to 2.5 mm, preferably 2 mm.

The diameter D3 of the second cylinder is less than the diameter D2 of the first cylinder by 1.5 mm to 2.5 mm, preferably by 1.9 mm; the length a5 of the second cylinder is 29 to 31 mm, preferably 30 mm;

the length a6 of the foam-generating section is 35 mm to 48 mm, preferably 46.5 mm.

The diameter of the third cylinder corresponds to the diameter D2 of the first cylinder.

The length a7 of the transverse long waist hole is 4 mm to 6 mm, and preferably 5 mm; the width a8 is 3.5 to 4.5 mm, preferably 4 mm.

The total length a9 of the air-mixing portion is 105-120 mm, preferably 117 mm.

The opposite thickness of the regular polygon cylinder at the air inlet end is A7, and is consistent with the opposite thickness of the regular polygon cylinder at the medicine inlet section, namely A1; the length of the air inlet end is A8, which is consistent with the length A3 of the medicine feeding section; the outer diameter of the mixing section is D4 and is consistent with the outer diameter D1 of the water inlet end; the water outlet end is a cylinder with the shape consistent with that of the mixing section.

The diameter D7 of the liquid-air mixing hole is greater than the diameter D2 of the first cylinder by 0.4 mm to 0.6 mm, preferably by 0.5 mm; the diameter d8 of the transition aperture is less than the diameter d7 of the liquid-air mixing aperture by 0.8 mm to 1.2 mm, preferably by 1 mm.

The length a9 of the liquid-air mixing hole is shorter than the length a6 of the foam generation section by 0.1 mm to 0.2 mm, preferably by 0.1 mm.

The diameter d9 of the compressed air inlet aperture is between 4 and 6 mm, preferably 5 mm.

Furthermore, the material of the liquid distribution part and the gas mixing part is any one of 304 stainless steel, 316 stainless steel or titanium alloy.

During the use, the inlet tube inserts the water inlet screw hole of joining in marriage the liquid part, and one or two advance the pencil and insert respectively and join in the corresponding medicine screw hole that advances of joining in marriage the liquid part, and compressed air pipe inserts the screw hole that admits air of gas mixing part, and the spray pipe inserts the screw hole that goes out of gas mixing part. The inflow water enters the foam generator at a larger flow rate, the flow rate of the inflow water is increased through the aperture contraction of the conical shrinkage cavity to generate negative pressure, and the liquid medicine is sucked into the foam generator from the medicine inlet hole by utilizing the Venturi effect; fully mixing the water-medicine mixing straight holes, the foam front taper holes and the foam front straight holes to form water-medicine mixed liquid; compressed air enters the foam generator through the air inlet threaded hole and the compressed air inlet hole, enters the foam rear straight hole through the pressure reduction cavity 2-10 between the second cylinder and the gas-liquid mixing hole of the gas-mixing part and the air inlet hole, is fully mixed with the water-medicine mixed liquid to form foam, and is sprayed out from the spray pipe.

The utility model discloses has positive effect:

1) the utility model discloses a multi-functional foam generator join in marriage liquid part and mix the material of gas part and be the metal material, join in marriage liquid part and mix gas part assembly back and link with the welding and become an organic whole, avoided leaking.

2) 2 medicine feeding holes are formed in the medicine feeding section, one medicine feeding hole is used for being connected with foam stock solution, the other medicine feeding hole is used for being connected with disinfectant or other liquid medicines, cleaning and disinfection can be carried out simultaneously, and multifunctional work is achieved.

3) The second cylinder and first cylinder, the difference in diameter between the third cylinder, take place the section at the foam and insert the downthehole back of liquid gas mixing, second cylinder that takes place the section at the foam and mixed between the liquid gas mixing hole of gas part and formed a space, also be the decompression cavity that gets into foam generator's compressed air, make compressed air obtain the decompression in this decompression cavity, when the compressed air rethread inlet port entering foam back straight hole through the decompression, the pressure phase-match of the downthehole water medicine mixed liquid of its pressure and foam front straight, can not block water medicine mixed liquid because of air pressure is too big, also can not be because of air pressure undersize and can not with water medicine intensive mixing, thereby produce even abundant foam of mixed liquid.

4) The air inlet hole is a transverse long waist hole, and the pressure of compressed air entering the straight hole behind the foam is favorably matched with the pressure of the water-medicine mixed liquid in the straight hole in front of the foam.

5) The length a9 of the liquid-gas mixing hole is slightly shorter than the length A6 of the foam generation section, and the diameter d8 of the transition hole is slightly smaller than the diameter d7 of the liquid-gas mixing hole, so that the right end of the foam generation section and the left end of the transition hole form a seal, and the foam is prevented from leaking.

Drawings

Fig. 1 is a cross-sectional view of the multifunctional foam generator along the axial line of the present invention.

Fig. 2 is an isometric view of the dispensing portion of fig. 1.

Fig. 3 is an isometric view of the gas mixing section of fig. 1.

Fig. 4 is an M-direction view of fig. 2.

Fig. 5 is an N-direction view of fig. 3.

Fig. 6 is a sectional view taken along line a-a in fig. 4.

Fig. 7 is an enlarged view of a portion B in fig. 6.

Fig. 8 is a sectional view taken along line C-C in fig. 5.

Fig. 9 is a sectional view taken along line D-D in fig. 5.

Fig. 10 is another version of fig. 6, differing from fig. 6 in that there are two medicine inlet holes and two medicine inlet threaded holes.

The reference numbers in the above figures are as follows: a liquid preparation part 1, a water inlet end 1-1, a water inlet end axial line 1-1-1, a water inlet threaded hole 1-1-2, a medicine inlet section axial line 1-2-1, a conical shrinkage hole 1-2-2, a medicine inlet hole 1-2-3, a medicine inlet hole axial line 1-2-3-1, a medicine inlet threaded hole 1-2-4, a water and medicine mixing straight hole 1-2-5, a foam generation section 1-3, a foam generation section axial line 1-3-1, a foam generation section mixing hole 1-3-2, a foam front conical hole 1-3-2-1, a foam front straight hole 1-3-2-2, and a foam rear straight hole 1-3-2-3, 1-3-3 parts of a step-shaped cylinder, 1-3-3-1 parts of a first cylinder, 1-3-3-2 parts of a second cylinder, 1-3-3 parts of a third cylinder, 1-3-3-3-1 parts of an air inlet hole, 1-10 parts of a water and drug mixing hole and 2 parts of a gas mixing part.

2-1 parts of an air inlet end, 2-2 parts of a mixing section, 2-3 parts of a water outlet end, 2-4 parts of an axial line of a gas mixing part, 2-5 parts of a liquid-gas mixing hole, 2-6 parts of a transition hole, 2-7 parts of a water outlet threaded hole, 2-8 parts of a compressed air inlet hole, 2-9 parts of an air inlet threaded hole and 2-10 parts of a pressure reduction cavity.

A length a2 of the conical shrinkage cavity, a length A4 of the water-medicine mixing straight hole, a length A5 of the foam front taper hole, a length a6 of the foam front straight hole, a length a7 of the transverse long waist hole, a width a8 of the transverse long waist hole, a length a9 of the liquid-gas mixing hole, an opposite thickness a1 of the regular polygonal cylinder of the medicine inlet section, a length a2 of the left end face of the water inlet end to the axial line of the medicine inlet hole, a length A3 of the medicine inlet section, a length A4 of a cylinder, a length A5 of a second cylinder, a length a6 of the foam generation section, an opposite thickness a7 of the regular polygonal cylinder of the air inlet end, a8 of the air inlet end, a9 of the total length of the gas mixing portion, a10 of the foam generator, a diameter d1 of the conical shrinkage cavity, a diameter d2 of the shrinkage cavity, a diameter d3 of the medicine inlet hole, a diameter d2 of the water-medicine mixing straight hole, a 69556 d 56 d of the foam front taper hole, a 8253 of the foam mixing hole, a 8253 of the foam rear end 6, the diameter D8 of the transition hole, the diameter D9 of the compressed air inlet hole, the diameter D1 of the outer circle of the water inlet end, the diameter D2 of the first cylinder, the diameter D3 of the second cylinder and the outer diameter D4 of the mixing section.

The directions "left" and "right" described by the Chinese character part of the present invention are the same as the directions shown in fig. 1, 6 to 10.

Detailed Description

(example 1).

Referring to fig. 1, 2 and 3, a multifunctional foam generator made of metal comprises a liquid preparation part 1 and a gas mixing part 2.

The overall length a10 of the foam generator was 161 mm.

Referring to fig. 2, 4 and 6, the liquid preparation part 1 sequentially comprises a water inlet end 1-1, a medicine feeding section 1-2 and a foam generating section 1-3 from left to right; the center of the liquid preparation part 1 is a water-medicine mixing hole 1-10, and the water-medicine mixing hole 1-10 comprises a water inlet threaded hole 1-1-2, a conical shrinkage hole 1-2-2, a water-medicine mixing straight hole 1-2-5 and a mixing hole 1-3-2; the water inlet end 1-1, the medicine feeding section 1-2 and the foam generating section 1-3 are integrated.

Referring to fig. 3, 5, 8 and 9, the gas mixing part 2 comprises a gas inlet end 2-1, a mixing section 2-2 and a water outlet end 2-3 in sequence from left to right; the air inlet end 2-1, the mixing section 2-2 and the water outlet end 2-3 are integrated; the center of the gas mixing part 2 consists of 3 cylindrical holes, and the liquid-gas mixing hole 2-5, the transition hole 2-6 and the water outlet threaded hole 2-7 are arranged from left to right in sequence.

Referring to fig. 1, 2 and 3, the foam generating section 1-3 of the liquid preparation part 1 is inserted into the liquid-gas mixing hole 2-5 of the gas mixing part 2, and the right end face of the medicine feeding section 1-2 of the liquid preparation part 1 is closely attached to the left end face of the gas inlet end 2-1 of the gas mixing part 2 and welded into a whole.

Referring to fig. 2, 4 and 6, the water inlet end 1-1 is a cylindrical tubular member.

The diameter D1 of the outer circle of the water inlet end 1-1 is 26 mm.

The medicine feeding section 1-2 is a cylindrical body which is coaxial with the water inlet end 1-1 and has a regular octagon shape, and the left side of the medicine feeding section 1-2 is smoothly connected with the outer cylindrical surface of the water inlet end 1-1.

The opposite thickness A1 of the regular polygon cylinder of the medicine feeding section 1-2 is 47 mm; the length A3 of the medicine feeding section 1-2 is 20 mm.

The foam generation section 1-3 is a cylindrical tubular part which is coaxial with the water inlet end 1-1 and the medicine inlet section 1-2.

The length a6 of the foam generating section 1-3 is 35 mm-48 mm, preferably 46.5 mm. The outer side surface of the foam generation section 1-3 is a step-shaped cylinder 1-3-3 with the outer diameter changing from left to right; the step-shaped cylinder 1-3-3 comprises a first cylinder 1-3-3-1, a second cylinder 1-3-3-2 and a third cylinder 1-3-3-3.

The left side of the step-shaped column 1-3-3 is provided with a first column 1-3-3-1, and the left end of the first column 1-3-3-1 is smoothly connected with the medicine feeding section 1-2 into a whole.

The diameter D2 of the first cylinder 1-3-3-1 is 15 mm; the length A4 of the first cylinder 1-3-3-1 is 2 mm.

The right side of the first cylinder 1-3-3-1 is a second cylinder 1-3-3-2, and the diameter D3 of the second cylinder 1-3-3-2 is slightly smaller than the diameter D2 of the first cylinder 1-3-3-1.

The diameter D3 of the second cylinder 1-3-3-2 is less than the diameter D2 of the first cylinder 1-3-3-1 by 1.9 mm; the length a5 of the second cylinder 1-3-3-2 is 30 mm.

The right side of the second cylinder 1-3-3-2 is a third cylinder 1-3-3-3.

The diameter of the third cylinder 1-3-3-3 is identical to the diameter D2 of the first cylinder 1-3-3-1.

Still referring to fig. 2, 4 and 6, a water inlet threaded hole 1-1-2 is arranged on the water inlet end axis 1-1-1 of the water inlet end 1-1.

Referring to fig. 2, 6 and 7, a conical shrinkage cavity 1-2-2 gradually reduced from left to right is arranged at the position of a medicine inlet section axial line 1-2-1 of the medicine inlet section 1-2, and the left side of the conical shrinkage cavity 1-2-2 is communicated with a water inlet threaded hole 1-1-2 of a water inlet end 1-1; the large-end diameter d1 of the conical shrinkage cavity 1-2-2 is 4 mm; the diameter d2 of the small end of the conical shrinkage cavity 1-2-2 is 2.5 mm; the length a2 of the conical shrinkage cavity 1-2-2 is 15 mm.

The center part of one face of the regular octagon of the medicine inlet section 1-2 is provided with a medicine inlet hole 1-2-3 which is vertically crossed with the axial line 1-2-1 of the medicine inlet section, namely the axial line 1-2-3-1 of the medicine inlet hole is vertically crossed with the axial line 1-2-1 of the medicine inlet section, and the medicine inlet hole 1-2-3 is crossed and communicated with the small end of the conical shrinkage cavity 1-2-2.

The diameter d3 of the medicine inlet hole is 1-2-3 mm; the length A2 from the left end face of the water inlet end 1-1 to the axial lead 1-2-3-1 of the medicine inlet hole is 34 mm.

The surface of the regular octagon on the outer side of the medicine inlet section 1-2, which is provided with the medicine inlet hole 1-2-3, is provided with a medicine inlet threaded hole 1-2-4 which is coaxial with the medicine inlet hole 1-2-3, and the medicine inlet hole 1-2-3 is communicated with the medicine inlet threaded hole 1-2-4.

After the conical shrinkage cavity 1-2-2 is intersected with the medicine inlet hole 1-2-3, the water-medicine mixed straight hole 1-2-5 extends rightwards, and the diameter d4 of the water-medicine mixed straight hole 1-2-5 is slightly larger than the diameter d2 of the small end of the conical shrinkage cavity 1-2-2 until the water-medicine mixed straight hole is communicated with the mixed hole 1-3-2 of the foam generation section 1-3.

The diameter d4 of the water-medicine mixing straight hole is 1-2-5 mm larger than the diameter d2 of the small end of the conical shrinkage hole 1-2-2 by 0.55 mm; the length a4 of the water-medicine mixing straight hole is 1-2-5 mm.

Still referring to fig. 2, 4 and 6, a foam generation section mixing hole 1-3-2 communicated from left to right is arranged at the position 1-3-1 of the axis of the foam generation section 1-3, and the foam generation section mixing hole 1-3-2 consists of a foam front taper hole 1-3-2-1, a foam front straight hole 1-3-2-2 and a foam rear straight hole 1-3-2-3 communicated from left to right.

The left end of the foam generation section mixing hole 1-3-2 is a foam front taper hole 1-3-2-1 which is communicated with the water-medicine mixing straight hole 1-2-5 of the medicine feeding section 1-2 and gradually enlarges from left to right, the right side of the foam front taper hole 1-3-2-1 is a foam front straight hole 1-3-2-2 taking the diameter of the large end of the foam front taper hole 1-3-2-1 as the diameter, and the diameter of the small end of the foam front taper hole 1-3-2-1 is consistent with the diameter d4 of the water-medicine mixing straight hole 1-2-5; the right side of the foam front straight hole 1-3-2-2 is communicated with the foam rear straight hole 1-3-2-3, the diameter d6 of the foam rear straight hole 1-3-2-3 is slightly larger than the diameter d5 of the foam front straight hole 1-3-2-2, and the foam rear straight hole 1-3-2-3 extends rightwards until penetrating through the foam generation section 1-3.

The diameter d5 of the large end of the front foam taper hole 1-3-2-1 is 4 mm; the length a5 of the front foam taper hole 1-3-2-1 is 8.5 mm; the length a6 of the front straight holes of the foam is 1-3-2-2 mm; the diameter d6 of the straight holes 1-3-2-3 after the foam is larger than the diameter d5 of the straight holes 1-3-2-2 before the foam by 0.5 mm.

Two air inlets 1-3-3-3-1 which are vertically intersected with the axial lead 1-3-1 of the foam generation section and radially penetrate through the foam generation section 1-3 are arranged at the position, close to the right side, of the second cylinder 1-3-3-2, and the two air inlets 1-3-3-1 are mutually and axially vertical.

Referring to fig. 10, the regular octagon of the medicine inlet section 1-2 is provided with a medicine inlet hole 1-2-3 and a medicine inlet threaded hole 1-2-4, the medicine inlet hole 1-2-3 and the medicine inlet threaded hole 1-2-4 are symmetrically and vertically intersected with the axial line 1-2-1 of the medicine inlet section, and the two medicine inlet holes 1-2-3 are intersected and communicated with the small end of the conical shrinkage hole 1-2-2.

Referring to fig. 6, the air inlet holes 1-3-3-3-1 are transverse long waist holes.

The length a7 of the transverse long waist hole is 5 mm, and the width a8 is 4 mm.

Referring to fig. 3, 5, 8 and 9, the air inlet end 2-1 of the air mixing part 2 is in the shape of a regular octagonal cylinder; the mixing section 2-2 is cylindrical in shape.

The total length a9 of the air mixing portion 2 is 117 mm.

The opposite thickness of the regular polygon cylinder of the air inlet end 2-1 is A7, which is consistent with the opposite thickness of the regular polygon cylinder of the medicine inlet section 1-2, which is A1; the length of the air inlet end 2-1 is A8, which is consistent with the length A3 of the medicine feeding section 1-2.

The right side of the air inlet end 2-1 is smoothly connected with the outer cylindrical surface of the mixing section 2-2.

The outer diameter of the mixing section 2-2 is D4 and is consistent with the outer diameter D1 of the water inlet end 1-1; the shape of the water outlet end 2-3 is a cylinder which is consistent with the shape of the mixing section 2-2.

Still referring to fig. 8 and 9, the gas mixing part consists of 3 cylindrical holes at the 2-4 position of the axial lead, the left side is a liquid-gas mixing hole 2-5, the middle is a transition hole 2-6, and the right side is a water outlet threaded hole 2-7.

The diameter D7 of the liquid-gas mixing hole 2-5 is larger than the diameter D2 of the first cylinder 1-3-3-1 by 0.5 mm; the diameter d8 of the transition holes 2-6 is smaller than the diameter d7 of the liquid-gas mixing holes 2-5 by 1 mm; the length a9 of the liquid-air mixing holes 2-5 is shorter than the length A6 of the foam generating sections 1-3 by 0.1 mm.

The central part of one surface of the air inlet end 2-1 is provided with a compressed air inlet hole 2-8 which is vertically intersected with the axial lead 2-4 of the air mixing part; the compressed air inlet hole 2-8 is intersected and communicated with the liquid-gas mixing hole 2-5; the surface of the outer regular octagon of the air inlet end 2-1, which is provided with the compressed air inlet hole 2-8, is provided with an air inlet threaded hole 2-9 which is coaxial with the compressed air inlet hole 2-8, and the compressed air inlet hole 2-8 is communicated with the air inlet threaded hole 2-9.

The diameter d9 of the compressed air inlet holes 2-8 is between 4 and 6 mm, preferably 5 mm.

The liquid distribution part 1 and the gas mixing part 2 are made of 304 stainless steel.

(application example)

When the device is used, the water inlet pipe is connected with a water inlet threaded hole 1-1-2 of a liquid preparation part 1 of a foam generator, the foam raw liquid pipe is connected with a corresponding medicine inlet threaded hole 1-2-4 of the liquid preparation part 1 through one medicine inlet pipe, the disinfectant pipe is connected with another corresponding medicine inlet threaded hole 1-2-4 of the liquid preparation part 1 through another medicine inlet pipe, the compressed air pipe is connected with a gas inlet threaded hole 2-9 of a gas mixing part 2, and the water spray pipe is connected with a water outlet threaded hole 2-7 of the gas mixing part 2. The inflow water enters the foam generator at a larger flow rate, the flow rate of the inflow water is increased through the aperture contraction of the conical shrinkage hole 1-2-2 to generate negative pressure, and the foam stock solution and the disinfectant solution are sucked into the foam generator from the medicine inlet hole 1-2-3 by utilizing the Venturi effect; fully mixing the water-medicine mixed straight holes 1-2-5, the foam front taper holes 1-3-2-1 and the foam front straight holes 1-3-2-2 to form water-medicine mixed liquid; compressed air enters the foam generator through the air inlet threaded holes 2-9 and the compressed air inlet holes 2-8, enters the foam rear straight holes 1-3-2-3 through the pressure reduction cavity 2-10 and the air inlet holes 1-3-3-1 between the second cylinder 1-3-2 and the air-liquid mixing holes 2-5 of the air-mixing part, is fully mixed with the water-medicine mixed liquid to form foam, and is sprayed out from the water spray pipe.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment without departing from the scope of the present invention, but all the modifications, equivalent changes and modifications of the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims (10)

1. A multi-functional foam generator which characterized in that: comprises a liquid preparation part (1) and a gas mixing part (2);

the liquid preparation part (1) sequentially comprises a water inlet end (1-1), a medicine inlet section (1-2) and a foam generation section (1-3) from left to right; the center of the liquid preparation part (1) is provided with a water-medicine mixing hole (1-10), and the water-medicine mixing hole (1-10) comprises a water inlet threaded hole (1-1-2), a conical shrinkage hole (1-2-2), a water-medicine mixing straight hole (1-2-5) and a foam generation section mixing hole (1-3-2); the water inlet end (1-1), the medicine inlet section (1-2) and the foam generation section (1-3) are integrated;

the gas mixing part (2) comprises a gas inlet end (2-1), a mixing section (2-2) and a water outlet end (2-3) from left to right in sequence; the air inlet end (2-1), the mixing section (2-2) and the water outlet end (2-3) are integrated; the center of the gas mixing part (2) consists of 3 cylindrical holes, and the liquid-gas mixing hole (2-5), the transition hole (2-6) and the water outlet threaded hole (2-7) are arranged from left to right in sequence;

the foam generating section (1-3) of the liquid preparation part (1) is inserted into the liquid-gas mixing hole (2-5) of the gas mixing part (2), and the right end face of the medicine inlet section (1-2) of the liquid preparation part (1) is closely attached to the left end face of the gas inlet end (2-1) of the gas mixing part (2) and welded into a whole.

2. A multifunctional foam generator as claimed in claim 1, wherein: the water inlet end (1-1) is a cylindrical tubular part;

the medicine inlet section (1-2) is a cylinder which is coaxial with the water inlet end (1-1) and is in a regular polygon shape, and the left side of the medicine inlet section (1-2) is smoothly connected with the outer cylindrical surface of the water inlet end (1-1);

the foam generation section (1-3) is a cylindrical tubular part which is coaxial with the water inlet end (1-1) and the medicine inlet section (1-2);

the outer side surface of the foam generation section (1-3) is a step-shaped cylinder (1-3-3) with the outer diameter changing from left to right; the step-shaped cylinder (1-3-3) comprises a first cylinder (1-3-3-1), a second cylinder (1-3-3-2) and a third cylinder (1-3-3-3);

the left side of the step-shaped column (1-3-3) is provided with a first column (1-3-3-1), and the left end of the first column (1-3-3-1) is smoothly connected with the medicine feeding section (1-2) into a whole;

the right side of the first cylinder (1-3-3-1) is provided with a second cylinder (1-3-3-2), and the diameter D3 of the second cylinder (1-3-3-2) is slightly smaller than the diameter D2 of the first cylinder (1-3-3-1);

the right side of the second cylinder (1-3-3-2) is a third cylinder (1-3-3-3).

3. A multifunctional foam generator as claimed in claim 2, wherein: the water inlet end axis (1-1-1) of the water inlet end (1-1) is provided with a water inlet threaded hole (1-1-2);

the axis (1-2-1) of the medicine inlet section (1-2) is a conical shrinkage cavity (1-2-2) which gradually shrinks from left to right, and the left side of the conical shrinkage cavity (1-2-2) is communicated with a water inlet threaded hole (1-1-2) of the water inlet end (1-1);

the center part of one face of the regular polygon of the medicine inlet section (1-2) is provided with a water inlet threaded hole which is vertically crossed with the axial lead (1-2-1) of the medicine inlet section, namely the axial lead (1-2-3-1) of the medicine inlet hole is vertically crossed with the axial lead (1-2-1) of the medicine inlet section, and the medicine inlet hole (1-2-3) is crossed and communicated with the small end of the conical shrinkage cavity (1-2-2); a medicine inlet threaded hole (1-2-4) coaxial with the medicine inlet hole (1-2-3) is formed in the surface of the regular polygon on the outer side of the medicine inlet section (1-2), and the medicine inlet hole (1-2-3) is communicated with the medicine inlet threaded hole (1-2-4);

after the conical shrinkage hole (1-2-2) is intersected with the medicine inlet hole (1-2-3), a water-medicine mixed straight hole (1-2-5) extends rightwards; the diameter d4 of the water-medicine mixing straight hole (1-2-5) is slightly larger than the diameter d2 of the small end of the conical shrinkage hole (1-2-2) until the water-medicine mixing straight hole is communicated with the mixing hole (1-3-2) of the foam generation section;

the foam generation section axial line (1-3-1) of the foam generation section (1-3) is provided with a foam generation section mixing hole (1-3-2) communicated from left to right, and the foam generation section mixing hole (1-3-2) consists of a foam front taper hole (1-3-2-1), a foam front straight hole (1-3-2-2) and a foam rear straight hole (1-3-2-3) communicated from left to right;

the left end of the foam generation section mixing hole (1-3-2) is a foam front taper hole (1-3-2-1) which is communicated with the water-medicine mixing straight hole (1-2-5) of the medicine feeding section (1-2) and gradually enlarges from left to right, the right side of the foam front taper hole (1-3-2-1) is a foam front straight hole (1-3-2-2) taking the diameter of the large end of the foam front taper hole (1-3-2-1) as the diameter, and the diameter of the small end of the foam front taper hole (1-3-2-1) is consistent with the diameter d4 of the water-medicine mixing straight hole (1-2-5); the right side of the foam front straight hole (1-3-2-2) is communicated with the foam rear straight hole (1-3-2-3), the diameter d6 of the foam rear straight hole (1-3-2-3) is slightly larger than the diameter d5 of the foam front straight hole (1-3-2-2), and the foam rear straight hole (1-3-2-3) extends rightwards until penetrating through the foam generation section (1-3);

two air inlets (1-3-3-3-1) which are vertically intersected with the axial lead (1-3-1) of the foam generation section and radially penetrate through the foam generation section (1-3) are arranged at the position, close to the right side, of the second cylinder (1-3-3-2), and the two air inlets (1-3-3-3-1) are mutually and axially vertical.

4. A multifunctional foam generator as claimed in claim 3, wherein: the regular polygon of the medicine inlet section (1-2) is provided with a medicine inlet hole (1-2-3) and a medicine inlet threaded hole (1-2-4) which are opposite to each other, the medicine inlet hole (1-2-3) and the medicine inlet threaded hole (1-2-4) are symmetrically arranged and are vertically crossed with the axial line (1-2-1) of the medicine inlet section, and the two medicine inlet holes (1-2-3) are crossed and communicated with the small end of the conical shrinkage hole (1-2-2).

5. A multifunctional foam generator according to claim 3 or 4, characterized in that: the air inlet holes (1-3-3-3-1) are transverse long waist holes.

6. A multifunctional foam generator as claimed in claim 1, wherein: the shape of the air inlet end (2-1) of the air mixing part (2) is a regular polygon cylinder; the mixing section (2-2) is cylindrical in shape; the shape of the water outlet end (2-3) is a cylinder;

the right side of the air inlet end (2-1) is smoothly connected with the outer cylindrical surface of the mixing section (2-2).

7. A multifunctional foam generator as claimed in claim 1, wherein: the axial lead (2-4) of the gas mixing part consists of 3 cylindrical holes, the left side is provided with a liquid-gas mixing hole (2-5), the middle part is provided with a transition hole (2-6), and the right side is provided with a water outlet threaded hole (2-7); the diameter D7 of the liquid-gas mixing hole (2-5) is slightly larger than the diameter D2 of the first cylinder (1-3-3-1); the diameter d8 of the transition hole (2-6) is slightly smaller than the diameter d7 of the liquid-gas mixing hole (2-5); the length a9 of the liquid-gas mixing hole (2-5) is slightly shorter than the length A6 of the foam generation section (1-3);

the central part of one surface of the air inlet end (2-1) is provided with a compressed air inlet hole (2-8) which is vertically crossed with the axial lead (2-4) of the air mixing part; the compressed air inlet hole (2-8) is intersected and communicated with the liquid-gas mixing hole (2-5); the surface of the regular polygon on the outer side of the air inlet end (2-1) provided with the compressed air inlet hole (2-8) is provided with an air inlet threaded hole (2-9) which is coaxial with the compressed air inlet hole (2-8), and the compressed air inlet hole (2-8) is communicated with the air inlet threaded hole (2-9).

8. A multifunctional foam generator as claimed in claim 2, wherein: the diameter D2 of the first cylinder (1-3-3-1) is 14 mm to 16 mm; the length a4 of the first cylinder (1-3-3-1) is 1.5 mm to 2.5 mm;

the diameter D3 of the second cylinder (1-3-3-2) is smaller than the diameter D2 of the first cylinder (1-3-3-1) by 1.5 mm to 2.5 mm; the length a5 of the second cylinder (1-3-3-2) is 29 mm to 31 mm.

9. A multifunctional foam generator as claimed in claim 3, wherein: the large-end diameter d1 of the conical shrinkage cavity (1-2-2) is 3 mm to 5 mm; the small end diameter d2 of the conical shrinkage cavity (1-2-2) is 2 mm to 3 mm; the length a2 of the conical shrinkage cavity (1-2-2) is 13 mm-17 mm;

the diameter d4 of the water-medicine mixing straight hole (1-2-5) is 0.3 mm to 0.7 mm larger than the diameter d2 of the small end of the conical shrinkage hole (1-2-2);

the diameter d5 of the large end of the front conical foam hole (1-3-2-1) is 3.5 mm to 4.5 mm;

the length a4 of the water-medicine mixing straight hole (1-2-5) is 11 mm-13 mm; the length a5 of the front tapered foam hole (1-3-2-1) is 8 mm-9 mm;

the length a6 of the front straight foam hole (1-3-2-2) is 16 mm-20 mm;

the diameter d6 of the straight holes after foam (1-3-2-3) is larger than the diameter d5 of the straight holes before foam (1-3-2-2) by 0.3 mm to 0.7 mm.

10. A multifunctional foam generator as claimed in claim 7, wherein: the diameter D7 of the liquid-gas mixing hole (2-5) is larger than the diameter D2 of the first cylinder (1-3-3-1) by 0.4 mm to 0.6 mm;

the length a9 of the liquid-air mixing hole (2-5) is shorter than the length A6 of the foam generation section (1-3) by 0.1 mm to 0.2 mm.

Images