Nozzle atomization effect testing device

Abstract

The invention belongs to the technical field of testing devices, and particularly relates to a nozzle atomization effect testing device which comprises a machine body and a testing assembly installed in the machine body, a water storage tank is formed in the upper end of the machine body, and the testing assembly comprises a supporting assembly installed above the water storage tank and used for loading a to-be-tested nozzle; comprising a plurality of air outlet ends and a plurality of water outlet ends communicated with the nozzles, and the air outlet ends correspond to the water outlet ends one to one; the switching assembly is mounted above the water storage tank and adjacent to the supporting assembly, and at least part of the switching assembly extends towards the supporting assembly so that the corresponding air outlet end and the corresponding water outlet end can be switched and opened; and each water outlet end is correspondingly connected with one spray head. The device has the beneficial effects that through cooperative arrangement of the supporting assembly and the switching assembly, atomization testing can be carried out on the multiple nozzles in sequence, the testing process is more efficient and controllable, and compared with the traditional technology that only a single nozzle can be subjected to performance evaluation, frequent nozzle replacement is avoided, and the use effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of testing devices, and in particular to a nozzle atomization effect testing device. Background Art

[0002] Sprinkler atomization technology is widely used in many fields, including medical, cosmetics, agriculture and industry. Atomizers can convert liquids into tiny droplets, thereby achieving more uniform and effective liquid distribution. In the medical field, atomizers are used for drug delivery to treat respiratory diseases; in agriculture, spray equipment is used for the application of pesticides and fertilizers; and in the cosmetics industry, atomizers are used for the application of spray-type skin care products and perfumes.

[0003] Existing testing devices are usually only able to evaluate the performance of a single nozzle at a time, resulting in a long overall testing cycle and being unable to meet the needs of rapid development and production of nozzles. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a nozzle atomization effect testing device to solve the above problems.

[0005] The technical solution of the present invention is implemented as follows: a nozzle atomization effect test device, including a body and a test component installed in the body, a water storage tank is opened at the upper end of the body, and the test component includes: A support assembly is installed above the water tank and is used to load the nozzle to be tested, including a plurality of air outlet ends and a plurality of water outlet ends connected to the nozzle, and the air outlet ends correspond to the water outlet ends one by one; A switching assembly is installed above the water tank and adjacent to the support assembly, and at least partially extends toward the support assembly to switch between the corresponding air outlet end and the water outlet end; Wherein, each water outlet is connected to a corresponding nozzle.

[0006] Furthermore, the support assembly includes: The support frame is fixedly installed on both sides of the water storage tank and at least partially extends above the water storage tank; A load beam, which is a shell structure with a cavity, is detachably installed between two support frames and is located above the water storage tank; An opening is provided at the lower end of the load beam along its length direction, and two sides of the opening along the length direction are concave to form a slide groove; A load plate is covered on the outside of the opening, and both ends of the load plate are slidably connected with the slide groove; Water outlet joint, the water outlet end is a water outlet joint, and a plurality of water outlet joints are fixedly installed at the lower end of the load plate along the length direction of the load plate and are distributed at equal intervals; Among them, the nozzle is detachably fixedly installed at the lower end of the water outlet joint.

[0007] Furthermore, the support assembly also includes: A transverse plate, fixedly mounted on the inner side of the load beam, for dividing the cavity in the load beam into an upper chamber and a lower chamber; A plurality of through slots are provided, and the plurality of through slots are evenly distributed along the length direction of the load beam at the rear end of the load beam; An adjusting member is slidably and sealingly connected in the through groove and at least partially extends into the upper chamber and the lower chamber; The upper chamber is used for introducing high-pressure gas, and the lower chamber is used for introducing test liquid.

[0008] Further, the adjusting member includes: An upper slide plate is slidably and sealingly connected to the upper part of the through groove, and at least partially extends into the upper chamber and abuts against the upper chamber wall of the upper chamber; A lower slide plate is slidably and sealingly connected to the lower part of the through groove, and at least partially extends into the lower chamber and abuts against the lower chamber wall of the lower chamber; The slot, the upper end of the upper slide plate, and the lower end of the lower slide plate are slidably sealed and connected in the slot and a spring is connected between the slot and the bottom of the slot; The upper slide plate is located in the upper chamber and has a guide hole 1 on its upper side wall, the lower slide plate is located in the lower chamber and has a guide hole 2 on its lower side wall, a one-way valve is installed in the guide hole 2, and a guide channel connecting the guide hole 1 and the guide hole 2 is provided between the upper slide plate and the lower slide plate; Among them, the plurality of air outlet ends are a plurality of air outlet channels arranged on the load plate, and a pressure relief valve is arranged in the air outlet channel. The pressure of the pressure relief valve is greater than the upper pressure limit of the test liquid in the lower chamber and lower than the upper pressure limit of the high-pressure gas in the upper chamber. When the lower slide plate abuts against the lower side wall of the lower chamber, the air outlet channel is correspondingly connected with the second guide hole, and the water outlet joint is closed.

[0009] Furthermore, a first shifting block and a second shifting block extending toward the outside of the through slot are respectively provided on the outer sides of the upper slide plate and the lower slide plate.

[0010] Furthermore, the switching component includes: A fixing plate, fixedly installed on both sides of the water storage tank; A driving motor 1 is fixedly mounted on one of the fixing plates; A screw rod is fixedly mounted on the output end of the driving motor 1, and the screw rod is arranged between two fixed plates through a bearing seat and is parallel to the load beam; The sliding seat is sleeved on the screw rod and is slidably connected to the screw rod through threads. A guide rod for radially limiting the sliding seat is installed between the two fixed plates. A second driving motor is fixedly mounted on the upper end of the sliding seat; A high-speed camera is fixedly installed at the front end of the sliding seat; The sliding block is a rectangular frame structure and is vertically arranged in front of the second driving motor; The transmission wheel is mounted on the output shaft of the second driving motor and is located inside the sliding block; There are a plurality of teeth 1, and the plurality of teeth 1 are fixed on both sides of the sliding block along the height direction of the sliding block; The second teeth are provided with a plurality of teeth, and the plurality of second teeth are fixedly mounted on the radially outer half of the transmission wheel and mesh with the first teeth to drive the sliding block to rise or fall; Among them, the high-speed camera is located below the sliding block, and a third toggle block matching with the first toggle block and the second toggle block is fixedly installed on the side of the sliding block away from the second driving motor.

[0011] Furthermore, the switching component also includes: Two fixed rods are provided, which are fixedly mounted on the upper end of the sliding seat and located on both sides of the driving motor; Slide groove 2 is provided on both sides of one end of the sliding block facing the driving motor 1; The two fixing rods extend into the two slide grooves 2 respectively and are slidably connected with the slide grooves 2 to limit the sliding seat to the left and right positions.

[0012] Furthermore, it also includes: An air intake pipe, one end of which is connected to the load beam through a thread, and the other end of which is connected to an external air pump; A water inlet pipe is provided in the water storage tank, an output end of the water pump is connected to the water inlet pipe, and one end of the water inlet pipe is connected to the load beam through a thread.

[0013] Furthermore, the present invention also provides a method for testing a nozzle atomization effect testing device, comprising the following steps: S1. Install the nozzle to be tested on the water outlet joint of the load board; S2, push the load plate into the first slide slot to make it fit with the load beam; S3, then start the drive motor 1 and the drive motor 2 of the switching assembly, and turn on the adjustment member corresponding to the first nozzle; S4, when the lower slide plate of the adjusting member is opened, the nozzle sprays water mist, and the high-speed camera takes pictures and records; S5, then the lower slide plate of the regulating member is closed, and the upper slide plate is opened, and high-pressure gas is sprayed to disperse the water mist; S6. The upper slide plate is opened, and the adjustment part corresponding to the second nozzle is opened, and the cycle is repeated.

[0014] The beneficial effects of the present invention are: Through the coordinated setting of the support component and the switching component, atomization tests can be performed on multiple nozzles in sequence. The test process is more efficient and controllable. Compared with the traditional technology that can only evaluate the performance of a single nozzle, frequent nozzle replacement is avoided and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The overall structure of the nozzle atomization effect testing device according to the specific embodiment of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the nozzle atomization effect testing device according to the specific embodiment of the present invention is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the matching structure of the load beam and the load plate according to a specific embodiment of the present invention; Figure 4 It is a cross-sectional view of the cooperation between the adjusting member and the load beam in a specific embodiment of the present invention; Figure 5 Specific implementation method of the present invention Figure 2 A is an enlarged view. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0019] Embodiment 1: like Figures 1 to 5 As shown, the present invention discloses a nozzle atomization effect testing device, comprising a body 1 and a testing component installed in the body 1, a water storage tank is provided at the upper end of the body 1, and the testing component comprises: A support assembly is installed above the water tank and is used to load the nozzle to be tested, including a plurality of air outlet ends and a plurality of water outlet ends connected to the nozzle, and the air outlet ends correspond to the water outlet ends one by one; A switching assembly is installed above the water tank and adjacent to the support assembly, and at least partially extends toward the support assembly to switch between the corresponding air outlet end and the water outlet end; Wherein, each water outlet is connected to a corresponding nozzle.

[0020] By adopting the above technical solution, through the coordinated setting of the support component and the switching component, atomization tests can be performed on multiple nozzles in sequence. The testing process is more efficient and controllable. Compared with the traditional technology that can only evaluate the performance of a single nozzle, frequent nozzle replacement is avoided and the use effect is good.

[0021] Embodiment 2: This embodiment provides a nozzle atomization effect testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0022] Furthermore, the support assembly includes: The support frame 200 is fixedly installed on both sides of the water storage tank, and at least partially extends above the water storage tank; The load beam 201 is a shell structure with a cavity, which is detachably installed between the two support frames 200 and is located above the water storage tank; An opening is provided at the lower end of the load beam 201 along its length direction, and two sides of the opening along the length direction are concave to form a slide groove 1; The load plate 202 is covered on the outside of the opening, and both ends of the load plate 202 are slidably connected with the slide groove; Water outlet connector 203, the water outlet end is the water outlet connector 203, a plurality of water outlet connectors 203 are fixedly installed at the lower end of the load plate 202 along the length direction of the load plate 202, and are distributed at equal intervals; The nozzle is detachably fixedly mounted on the lower end of the water outlet joint 203 .

[0023] In the above technical solution, a concave clamping structure that is mutually clamped is provided between the support frame and the load beam so that the load beam is fixed between the two support frames, which is convenient for disassembly and maintenance; In the above technical solution, magnetic blocks that attract each other are arranged on the inner side of the load plate and the wall of the first slide slot, so as to facilitate positioning of the load plate after it is inserted into the slide slot, and avoid gaps caused by misalignment and water leakage; In the above technical solution, a water outlet connected to the water outlet joint is provided at the upper end of the load plate, and threads are provided inside and outside the water outlet joint to adapt to internal thread nozzles and external thread nozzles; By adopting the above technical solution, after each nozzle is screwed on each water outlet joint, the load plate with the nozzle installed is then installed on the load beam, which is convenient and quick.

[0024] Embodiment three: This embodiment provides a nozzle atomization effect testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] Furthermore, the support assembly also includes: The transverse plate 300 is fixedly mounted on the inner side of the load beam 201 and is used to separate the cavity in the load beam 201 into an upper chamber 301 and a lower chamber 302; A plurality of through slots are provided, and the plurality of through slots are evenly distributed along the length direction of the load beam 201 at the rear end of the load beam 201; The adjusting member 303 is slidably and sealingly connected in the through groove and at least partially extends into the upper chamber 301 and the lower chamber 302; The upper chamber 301 is used for introducing high-pressure gas, and the lower chamber 302 is used for introducing test liquid.

[0026] In the above technical solution, the high-pressure gas is high-pressure air, and the test liquid is water. In addition to water, the test medium may also be oil, liquid medicine, or the like; By adopting the above technical scheme, the upper chamber and the lower chamber cooperate with the adjusting parts to avoid complicated piping layout. At the same time, after the upper chamber completes the water test on the nozzle, it can spray high-pressure gas to the test nozzle through the lower chamber, so that the water mist of the previous test can quickly diffuse, avoiding affecting the accuracy of the next water mist detection.

[0027] Embodiment 4: This embodiment provides a nozzle atomization effect testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] Further, the adjusting member 303 includes: The upper slide plate 304 is slidably and sealingly connected to the upper part of the through groove, and at least partially extends into the upper chamber 301 and abuts against the upper chamber wall of the upper chamber 301; The lower slide plate 305 is slidably and sealingly connected to the lower part of the through groove, and at least partially extends into the lower chamber 302 and abuts against the lower chamber wall of the lower chamber 302; The slot 307, the upper end of the upper slide plate 304, and the lower end of the lower slide plate 305 are slidably sealed and connected in the slot and a spring is connected between the slot 307 and the bottom of the slot; The upper slide plate 304 is provided with a guide hole 1 on the upper side wall in the upper chamber 301, and the lower slide plate 305 is provided with a guide hole 2 on the lower side wall in the lower chamber 302. A one-way valve is installed in the guide hole 2, and a guide channel connecting the guide hole 1 and the guide hole 2 is provided between the upper slide plate 304 and the lower slide plate 305; Among them, the plurality of air outlet ends are a plurality of air outlet channels arranged on the load plate 202, and a pressure relief valve is arranged in the air outlet channel. The pressure of the pressure relief valve is greater than the upper pressure limit of the test liquid in the lower chamber 302, and is lower than the upper pressure limit of the high-pressure gas in the upper chamber 301. When the lower slide plate 305 abuts against the lower side wall of the lower chamber 302, the air outlet channel is correspondingly connected to the second guide hole, and the water outlet joint 203 is closed.

[0029] In the above technical solution, the outlet end of the air outlet channel is set through the lower end surface of the load plate, and the outlet end of the air outlet channel is an annular groove, which is coaxial with the water outlet joint and has an inner diameter larger than the outer diameter of the water outlet joint. The two do not interfere with each other. The outlet end set in an annular groove shape can make the sprayed gas cover a wider range and improve the liquid mist blowing effect; By adopting the above technical solution, the guide channel is set through the slot. When the upper slide plate slides downward, the opening of the guide hole 1 is separated from the upper cavity wall of the upper chamber. The high-pressure air enters the guide channel through the guide hole 1, passes through the slot, and then enters the air outlet channel through the guide hole 2 to be discharged, thereby blowing away the liquid mist under the nozzle. The setting of the pressure relief valve and the one-way valve prevents the test liquid from flowing in and affecting the test.

[0030] Embodiment five: This embodiment provides a nozzle atomization effect testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0031] Furthermore, a first shifting block and a second shifting block extending toward the outside of the through slot are respectively disposed on the outer sides of the upper slide plate 304 and the lower slide plate 305 .

[0032] By adopting the above technical solution, the switching component can adjust the upper slide plate and the lower slide plate by toggling the toggle block, so as to perform gas-liquid switching, which is simple and convenient.

[0033] Embodiment six: This embodiment provides a nozzle atomization effect testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] Furthermore, the switching component includes: The fixing plate 400 is fixedly installed on both sides of the water storage tank; A driving motor 1 401 is fixedly mounted on one of the fixing plates 400; The screw rod 402 is fixedly mounted on the output end of the driving motor 1 401. The screw rod 402 is disposed between the two fixing plates 400 through a bearing seat and is parallel to the load beam 201. The sliding seat 403 is sleeved on the screw rod 402 and is slidably connected to the screw rod 402 through threads. A guide rod for radially limiting the sliding seat 403 is installed between the two fixing plates 400; The second driving motor 404 is fixedly mounted on the upper end of the sliding seat 403; A high-speed camera 405 is fixedly mounted on the front end of the sliding seat 403; The sliding block 406 is a rectangular frame structure and is vertically arranged in front of the second driving motor 404; The transmission wheel 407 is mounted on the output shaft of the second driving motor 404 and is located inside the sliding block 406; There are a plurality of teeth 408, and the plurality of teeth 408 are fixed on both sides of the sliding block 406 along the height direction of the sliding block 406; The second teeth 409 are provided in plurality, and the plurality of second teeth 409 are fixedly mounted on the radially outer half of the transmission wheel 407 and mesh with the first teeth 408 to drive the sliding block 406 to rise or fall; The high-speed camera 405 is located below the sliding block 406 , and a third toggle block matching with the first toggle block and the second toggle block is fixedly installed on the side of the sliding block 406 away from the second driving motor 404 .

[0035] By adopting the above technical solution, in the initial state, the sliding block is located at the lowest position, and the driving motor 1 drives the sliding seat to move horizontally, so that the third toggle block moves to the bottom of the second toggle block corresponding to one of the nozzles, and then the driving motor 2 drives the transmission wheel to rotate, so that the tooth 2 is engaged with the tooth 1 on one side of the sliding block, so as to drive the third toggle block to rise, so that the third toggle block pushes the second toggle block to make the lower slide plate rise, and the water in the lower chamber enters the water outlet joint, and then is sprayed out through the nozzle, and the high-speed camera shoots and records the sprayed water mist; After completing the test of the above-mentioned nozzle, the third toggle block can be driven to move above the first toggle block by cooperating with the drive motor 1 and the drive motor 2, and then the tooth 2 is engaged with the tooth 1 on the other side of the sliding block, so that the sliding block drives the third toggle block to descend, thereby pushing the upper slide plate to descend, so that the gas in the upper chamber can be discharged from the air outlet channel through the guide channel to blow away the water mist under the nozzle, so as to avoid affecting the subsequent shooting of the high-speed camera; In addition, multiple rapid atomization tests can be performed on one of them individually to improve the test accuracy.

[0036] Embodiment seven: This embodiment provides a nozzle atomization effect testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] Furthermore, the switching component also includes: There are two fixed rods 500, which are fixedly mounted on the upper end of the sliding seat 403 and located on both sides of the driving motor 401; The second slide groove is provided on both sides of one end of the sliding block 406 facing the driving motor 1 401; The two fixing rods 500 extend into the two slide grooves 2 respectively and are slidably connected with the slide grooves 2 to limit the sliding seat 403 to the left and right.

[0038] By adopting the above technical solution, the sliding block is easy to disassemble and assemble, has a simple structure, and is easy to maintain.

[0039] Embodiment eight: This embodiment provides a nozzle atomization effect testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] Furthermore, it also includes: An air intake pipe, one end of which is connected to the load beam 201 by a thread, and the other end is connected to an external air pump; Water inlet pipe: a water pump is arranged in the water storage tank, the output end of the water pump is connected to the water inlet pipe, and one end of the water inlet pipe is connected to the load beam 201 through a thread.

[0041] By adopting the above technical solution, the structure is simple and air and liquid can be quickly supplied to the load beam.

[0042] Embodiment nine: This embodiment provides a test method for a nozzle atomization effect test device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] Further, the following steps are included: S1. Install the nozzle to be tested on the water outlet joint of the load board; S2, push the load plate into the first slide slot to make it fit with the load beam; S3, then start the drive motor 1 and the drive motor 2 of the switching component, and turn on the adjustment member corresponding to the first nozzle; S4, when the lower slide plate of the adjusting member is opened, the nozzle sprays water mist, and the high-speed camera takes pictures and records; S5, then the lower slide plate of the regulating member is closed, and the upper slide plate is opened, and high-pressure gas is sprayed to disperse the water mist; S6. The upper slide plate is opened, and the adjustment part corresponding to the second nozzle is opened, and the cycle is repeated.

[0044] By adopting the above technical solution, through the coordinated setting of the support component and the switching component, atomization tests can be performed on multiple nozzles in sequence. The testing process is more efficient and controllable. Compared with the traditional technology that can only evaluate the performance of a single nozzle, frequent nozzle replacement is avoided and the use effect is good.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A nozzle atomization effect testing device, comprising a body (1) and a testing component installed in the body (1), characterized in that: A water storage tank is provided at the upper end of the machine body (1), and the test components include: A support assembly is installed above the water tank and is used to load the nozzle to be tested, including a plurality of air outlet ends and a plurality of water outlet ends connected to the nozzle, and the air outlet ends correspond to the water outlet ends one by one; A switching assembly is installed above the water tank and adjacent to the support assembly, and at least partially extends toward the support assembly to switch between the corresponding air outlet end and the water outlet end; Wherein, each water outlet is connected to a corresponding nozzle.

2. A nozzle atomization effect testing device according to claim 1, characterized in that: The support components include: The support frame (200) is fixedly mounted on both sides of the water storage tank and at least partially extends above the water storage tank; A load beam (201), the load beam (201) is a shell structure with a cavity, which is detachably installed between the two support frames (200) and is located above the water storage tank; An opening is provided at the lower end of the load beam (201) along its length direction, and two sides of the opening in the length direction are inwardly concave to form a slide groove; A load plate (202) is disposed outside the opening to cover the load plate, and two ends of the load plate (202) are slidably connected to a slide groove; A water outlet joint (203), the water outlet end is the water outlet joint (203), a plurality of water outlet joints (203) are fixedly installed at the lower end of the load plate (202) along the length direction of the load plate (202), and are distributed at equal intervals; The spray head is detachably fixedly mounted on the lower end of the water outlet joint (203).

3. A nozzle atomization effect testing device according to claim 2, characterized in that: The support assembly also includes: A transverse plate (300) is fixedly mounted on the inner side of the load beam (201) and is used to separate the cavity in the load beam (201) into an upper chamber (301) and a lower chamber (302); A plurality of through grooves are provided, and the plurality of through grooves are evenly distributed along the length direction of the load beam (201) at the rear end of the load beam (201); An adjusting member (303) is slidably and sealingly connected to the through groove and at least partially extends into the upper chamber (301) and the lower chamber (302); The upper chamber (301) is used to introduce high-pressure gas, and the lower chamber (302) is used to introduce test liquid.

4. A nozzle atomization effect testing device according to claim 3, characterized in that: The adjusting member (303) comprises: An upper slide plate (304) is slidably and sealingly connected to the upper portion of the through groove and at least partially extends into the upper chamber (301) and abuts against an upper chamber wall of the upper chamber (301); A lower slide plate (305) is slidably and sealingly connected to the lower portion of the through groove and at least partially extends into the lower chamber (302) and abuts against the lower chamber wall of the lower chamber (302); The slot (307), the upper end of the upper slide plate (304), and the lower end of the lower slide plate (305) are slidably sealed and connected in the slot and a spring is connected between the slot (307) and the bottom of the slot (307); The upper slide plate (304) is located in the upper chamber (301) and has a first diversion hole on its upper side wall, the lower slide plate (305) is located in the lower chamber (302) and has a second diversion hole on its lower side wall, a one-way valve is installed in the second diversion hole, and a diversion channel connecting the first diversion hole and the second diversion hole is provided between the upper slide plate (304) and the lower slide plate (305); Among them, the plurality of air outlet ends are a plurality of air outlet channels arranged on the load plate (202), and a pressure relief valve is arranged in the air outlet channel. The pressure of the pressure relief valve is greater than the upper pressure limit of the test liquid in the lower chamber (302) and lower than the upper pressure limit of the high-pressure gas in the upper chamber (301). When the lower slide plate (305) abuts against the lower side wall of the lower chamber (302), the air outlet channel is correspondingly connected to the second guide hole, and the water outlet joint (203) is closed.

5. A nozzle atomization effect testing device according to claim 4, characterized in that: A first shifting block and a second shifting block extending toward the outside of the through slot are respectively arranged on the outer sides of the upper slide plate (304) and the lower slide plate (305).

6. A nozzle atomization effect testing device according to claim 5, characterized in that: The switching components include: A fixing plate (400) is fixedly installed on both sides of the water storage tank; A driving motor 1 (401) is fixedly mounted on one of the fixing plates (400); A screw rod (402) is fixedly mounted on the output end of the first driving motor (401), and the screw rod (402) is arranged between two fixing plates (400) via a bearing seat and is parallel to the load beam (201); The sliding seat (403) is sleeved on the screw rod (402) and is slidably connected to the screw rod (402) via a thread, and a guide rod for radially limiting the sliding seat (403) is installed between the two fixing plates (400); A second driving motor (404) is fixedly mounted on the upper end of the sliding seat (403); A high-speed camera (405) is fixedly mounted on the front end of the sliding seat (403); The sliding block (406) is a rectangular frame structure and is vertically arranged in front of the second driving motor (404); A transmission wheel (407) is mounted on the output shaft of the second driving motor (404) and is located inside the sliding block (406); A plurality of teeth one (408) are provided, and the plurality of teeth one (408) are fixed on both sides of the sliding block (406) along the height direction of the sliding block (406); A plurality of teeth 2 (409) are provided, and the plurality of teeth 2 (409) are fixedly mounted on the radially outer half of the transmission wheel (407) and mesh with the teeth 1 (408) to drive the sliding block (406) to rise or fall; The high-speed camera (405) is located below the sliding block (406). A third toggle block that cooperates with the first toggle block and the second toggle block is fixedly installed on the side of the sliding block (406) away from the second driving motor (404).

7. A nozzle atomization effect testing device according to claim 5, characterized in that: The switching component also includes: Two fixed rods (500) are provided, fixedly mounted on the upper end of the sliding seat (403) and located on both sides of the driving motor 1 (401); Slide groove 2 is provided on both sides of one end of the slide block (406) facing the drive motor 1 (401); The two fixing rods (500) extend into the two slide grooves 2 respectively and are slidably connected to the slide grooves 2 to limit the left and right positions of the sliding seat (403).

8. A nozzle atomization effect testing device according to claim 2, characterized in that: Also includes: An air intake pipe, one end of which is connected to the load beam (201) by means of a thread, and the other end of which is connected to an external air pump; A water inlet pipe is provided in the water storage tank. The output end of the water pump is connected to the water inlet pipe. One end of the water inlet pipe is connected to the load beam (201) through a thread.

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