Strength test system and method for solution type nozzle plugging device and scrubber

Abstract

The present application relates to a strength test system and method for a solution-type nozzle plugging device and a washer, which includes: a test box having a plugging cavity therein, on which an access hole, a liquid injection port and an exhaust port are provided, and the nozzle is connected to the plugging cavity through the access hole; a liquid delivery pipeline, which is connected to the liquid injection port and is provided with a first valve for delivering a plugging solution into the plugging cavity through the liquid delivery pipeline; a second valve, which is connected to the exhaust port, for opening and closing the exhaust port. The test personnel can use the pipeline connected to the liquid injection port to remotely fill the plugging cavity with the plugging solution, and remotely close the first valve and the second valve to complete the plugging of the nozzle. The test personnel do not need to enter the test environment to perform the plugging operation on the nozzle, which reduces the labor cost and improves the safety and efficiency of the test.

Description

Technical Field

[0001] The present application relates to the field of scrubber detection, and in particular to a solution-type nozzle plugging device and a scrubber strength testing system and method. Background Art

[0002] The performance test items of automobile washers specified in the national standard GB15085 are mandatory items before the announcement on the M1 vehicle, so the performance of the washers needs to be tested during the vehicle development verification and regulatory testing stages. Under this test item, the strength test of the washers needs to be repeatedly verified under high temperature 80℃, low temperature -18℃ and normal temperature 20℃ environmental conditions, that is, all the nozzles of the washers are blocked, and the washers water spray motor is started 6 times within 1 minute, each time for at least 3s, and then the nozzles are released to verify whether the washers can spray the blocking solution in the washing pot to the target area.

[0003] Because after each strength test, it is necessary to verify whether the plugging solution can be sprayed to the target area of ​​the windshield under the current temperature conditions, so most of the current test schemes are vehicle testing methods; there is also a bench test method that tests by building an equivalent bench, which can greatly reduce the size requirements of the environmental chamber and greatly reduce the test cost. However, in both test methods, the nozzle plugging during the strength test verification is usually done manually, and the tester will be exposed to the current temperature, especially at -18℃ and 80℃, which is extremely harmful to people, and the effectiveness of the plugging is difficult to guarantee. Summary of the invention

[0004] The embodiments of the present application provide a solution-type nozzle plugging device and a strength testing system and method for a washer to solve the problem in the related art that the nozzles in the washer need to be manually plugged.

[0005] In the first aspect, a solution-type nozzle plugging device is provided, which adopts the following technical solution:

[0006] A solution type nozzle plugging device, comprising:

[0007] The test box has a plugging cavity therein, on which an access hole, a liquid injection port and an exhaust port are provided, and the nozzle is connected to the plugging cavity through the access hole;

[0008] a liquid delivery pipeline connected to the liquid injection port, on which a first valve is provided for delivering a plugging solution into the plugging cavity through the liquid delivery pipeline;

[0009] A second valve is connected to the exhaust port and is used for opening and closing the exhaust port.

[0010] In some embodiments, the solution-type nozzle plugging device further comprises:

[0011] A liquid discharge port, which is arranged at the bottom of the test box and is connected to a third valve;

[0012] A liquid storage tank, wherein a liquid discharge pipe is provided between the liquid storage tank and the liquid discharge port to connect the two;

[0013] A liquid supply component is connected to the liquid storage tank and delivers the plugging solution to the liquid injection port through the liquid delivery pipeline.

[0014] In some embodiments, the solution-type nozzle plugging device further comprises:

[0015] The liquid level sensor is arranged above the second valve and is controllably connected with the liquid supply component, the first valve and the second valve, so as to close the liquid supply component when the liquid level in the blocking cavity is higher than the second valve.

[0016] In some embodiments, at least a portion of the test box facing the spraying area of ​​the nozzle is movably opened and closed, so that when the test box is in a closed state, the nozzle is sealed and connected to the blocking cavity, and when the test box is in an open state, the nozzle is connected to the external environment and there is no structure of the test box blocking the spraying direction.

[0017] In some embodiments, the test chamber comprises:

[0018] A movable box body, comprising a first assembly and a second assembly, wherein the first assembly and the second assembly are provided with a clamping notch at the same end, and the first assembly and the second assembly can be close to each other and seal and abut at other edges outside the clamping notch to form the movable box body, and the two clamping notches are combined to form a clamping opening;

[0019] A mounting post, the diameter of which corresponds to the clamping opening, the first assembly and the second assembly clamp the mounting post at the clamping opening, and the access hole is opened thereon;

[0020] A driving assembly is connected to the first assembly and / or the second assembly to drive the two to approach each other and combine with the mounting column to form the blocking cavity, or to drive the two to move away from each other to open the blocking cavity.

[0021] In some embodiments, both ends of the mounting column extend to the inside and outside of the movable box respectively, the access hole is provided on the end surface of the mounting column extending into the movable box, a placement cavity is provided in the mounting column, the placement cavity is connected to the access hole and has an inner diameter larger than the access hole, and the placement cavity is open at the other end surface of the mounting column.

[0022] In some embodiments, the drive assembly includes:

[0023] A first ejection mechanism connected to the first assembly to drive the first assembly to move closer to or away from the mounting column;

[0024] The second ejection mechanism is connected to the second assembly and is used for driving the second assembly to move closer to or away from the mounting column.

[0025] In some embodiments, sealing gaskets are provided on the peripheries of the first assembly and the second assembly for contacting the mounting column and on the peripheries for contacting each other.

[0026] In the second aspect, a strength test system for a scrubber is provided, which adopts the following technical solution:

[0027] A strength test system for a scrubber, comprising a scrubber and the nozzle plugging device as described above;

[0028] The scrubber comprises:

[0029] washing pot;

[0030] A water spraying motor connected to the washing pot and connected to a delivery pipeline for delivering washing liquid to the outside;

[0031] at least one nozzle connected to the water spray motor through the delivery pipeline;

[0032] The nozzle plugging device is used to connect one or more of the nozzles.

[0033] In the third aspect, a strength test method for a scrubber is provided, using the following technical solution:

[0034] A strength test method for a scrubber comprises the following steps:

[0035] Determine the relative height of the water spray motor and nozzle in the scrubber according to the actual installation position of the scrubber when it is used;

[0036] Extending the end of the nozzle into the plugging cavity through the access hole, and filling the plugging cavity with a plugging solution to seal the plugging cavity;

[0037] Start the water spray motor and conduct a water spray motor stall test when the nozzle is clogged.

[0038] The beneficial effects of the technical solution provided by this application include:

[0039] The embodiment of the present application provides a strength test system and method for a solution-type nozzle plugging device and a scrubber. The plugging solution can be fed into the test box through the injection port until the plugging cavity is filled. The exhaust port can be used to discharge the air in the plugging cavity when the plugging solution is injected into the plugging cavity. After the plugging cavity is filled, the nozzle placed in the plugging cavity can be plugged with the plugging solution by closing the first valve and the second valve. Furthermore, the tester can use the pipeline connected to the injection port to remotely fill the plugging cavity with the plugging solution, and remotely close the first valve and the second valve after the plugging solution fills the plugging cavity. The plugging of the nozzle can be completed by using the difficult-to-compress characteristic of the plugging solution. The tester does not need to enter the test environment to perform the plugging operation on the nozzle, which reduces the labor cost and improves the safety and efficiency of the test. It is also highly integrated with the scrubber bench test method, providing a very beneficial solution for the nozzle blockage of the bench test method. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 It is the overall structural schematic diagram of the strength test system of the scrubber;

[0042] Figure 2 It is a schematic diagram of the structure of the solution type nozzle plugging device.

[0043] In the figure:

[0044] 1. Test chamber; 10. Blocking cavity; 11. Access hole; 110. Sealing ring; 12. Liquid injection port; 13. Exhaust port; 130. Exhaust pipe; 14. Liquid discharge port; 15. First assembly; 16. Second assembly; 17. Clamping port; 18. Mounting column; 180. Placement cavity; 191. First ejection mechanism; 192. Second ejection mechanism;

[0045] 2. Liquid delivery pipeline; 20. First valve;

[0046] 3. Second valve; 30. Liquid level sensor;

[0047] 4. Liquid storage tank; 40. Liquid discharge pipe; 41. Third valve;

[0048] 5. Liquid supply parts;

[0049] 60. Washing pot; 61. Water spraying motor; 62. Nozzle; 63. Delivery pipeline. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0051] The embodiments of the present application provide a solution-type nozzle plugging device and a strength testing system and method for a washer, which can solve the problem of requiring manual plugging of the nozzle in the washer in the related art.

[0052] Reference Figure 1 , a solution type nozzle plugging device, comprising:

[0053] The test box 1 has a blocking cavity 10 therein, on which an access hole 11, a liquid injection port 12 and an exhaust port 13 are provided, and the nozzle 62 is connected to the blocking cavity 10 through the access hole 11;

[0054] A liquid delivery pipeline 2, which is connected to the liquid injection port 12 and is provided with a first valve 20 for delivering the plugging solution into the plugging cavity 10 through the liquid delivery pipeline 2;

[0055] The second valve 3 is connected to the exhaust port 13 to open and close the exhaust port 13 .

[0056] The sealed connection between the nozzle 62 and the blocking cavity 10 through the access hole 11 is specifically that a sealing ring 110 is provided between the peripheral edge of the nozzle 62 and the inner wall of the peripheral side of the access hole 11 when the nozzle 62 is installed on the access hole 11, so as to ensure the sealing of the nozzle 62 during installation. In other embodiments, other connection methods can also be used to achieve a sealing effect when the nozzle 62 is installed through the access hole 11. The first valve 20 and the second valve 3 are both electrically controlled valves in this embodiment, so that the test personnel can remotely open and close the liquid filling port 12 and the exhaust port 13.

[0057] In this arrangement, the plugging solution can be fed into the test box 1 through the liquid delivery pipe 2 and the liquid injection port 12 until the plugging chamber 10 is filled. The exhaust port 13 can be used to discharge the air in the plugging chamber 10 when the plugging solution is injected into the plugging chamber 10. After the plugging chamber 10 is filled, the nozzle 62 in the plugging chamber 10 can be plugged by closing the first valve 20 and the second valve 3. Furthermore, the test personnel can use the liquid delivery pipe 2 connected to the liquid injection port 12 to remotely fill the plugging chamber 10 with the plugging solution, and after the plugging solution fills the plugging chamber 10, the first valve 20 and the second valve 3 can be remotely closed to complete the plugging of the nozzle 62 by using the difficult-to-compress characteristics of the plugging solution. The test personnel do not need to enter the test environment to plug the nozzle 62, which reduces the labor cost and improves the safety and efficiency of the test. It is highly integrated with the scrubber bench test method, providing a very beneficial solution for the blockage of the nozzle 62 in the bench test method.

[0058] Reference Figure 1 Optionally, the solution-type nozzle plugging device further comprises:

[0059] A liquid discharge port 14, which is disposed at the bottom of the test box 1 and is connected to a third valve 41;

[0060] A liquid storage tank 4, a liquid delivery pipe 2 and a liquid discharge pipe 40 are respectively provided between the liquid storage tank 4 and the liquid injection port 12 and the liquid discharge port 14;

[0061] The liquid supply component 5 is connected to the liquid storage tank 4 and can supply the plugging solution into the liquid injection port 12 through the liquid supply pipeline 2 .

[0062] Among them, the drain port 14 is connected to the exhaust pipe 130 in this embodiment, and the third valve 41 is arranged on it, and the exhaust pipe 130 extends from the end away from the test box 1 to above the opening of the liquid storage tank 4, so that the blocking solution overflowing the test box 1 can flow back to the liquid storage tank 4 through the exhaust pipe 130, avoiding waste and affecting the test environment.

[0063] In this way, the plugging solution in the liquid storage tank 4 can be delivered to the plugging cavity 10 of the test box 1 by controlling the opening and closing of the liquid supply part 5 and the liquid delivery pipe 2. After the test is finished, the plugging solution in the plugging cavity 10 can be recovered into the liquid storage tank 4 through the liquid discharge pipe 40, so that the plugging solution in the liquid storage tank 4 and the plugging cavity 10 can be reused, thereby reducing the test cost.

[0064] Reference Figure 1 Optionally, the solution-type nozzle plugging device further comprises:

[0065] The liquid level sensor 30 is disposed above the second valve 3 and is controllably connected to the liquid supply component 5 , the first valve 20 , and the second valve 3 , so as to close the liquid supply component 5 when the liquid level in the blocking cavity 10 is higher than the second valve 3 .

[0066] In this arrangement, after the liquid level sensor 30 detects that the liquid level in the blocking cavity 10 rises above the second valve 3, it can control the liquid supply part 5, the first valve 20 and the second valve 3 to close, and then in combination with the liquid discharge port 14 in the closed state, the blocking cavity 10 can be completely closed and filled with the blocking solution, thereby blocking the nozzle 62. The test personnel can effectively block the nozzle 62 remotely.

[0067] Furthermore, the liquid level sensor 30, the liquid supply part 5, the first valve 20, the second valve 3 and the third valve 41 are connected to the same controller, and the controller includes but is not limited to remote operation by the test personnel or automatic control of each part to open or close according to a pre-set program method.

[0068] Reference Figure 2 In some preferred embodiments, at least the portion of the test box 1 facing the spraying area of ​​the nozzle 62 is movably opened and closed, so that when the test box 1 is in a closed state, the nozzle 62 is sealed and connected to the blocking cavity 10, and when the test box 1 is in an open state, the nozzle 62 is connected to the external environment and there is no structural obstruction of the test box 1 in the spraying direction.

[0069] It should be noted that the test box 1 is a movable device that can remotely control the opening and closing of the blocking chamber 10, thereby preventing test personnel from entering the test environment. Furthermore, when it is necessary to test the effect of the washing system nozzle 62 spraying the washing liquid, the test box 1 can be quickly controlled to open, so that the nozzle 62 is connected to the external environment and the blockage is released.

[0070] Reference Figure 2 Optionally, the test box 1 comprises:

[0071] The movable box includes a first assembly 15 and a second assembly 16. The first assembly 15 and the second assembly 16 are provided with a clamping notch at the same end. The first assembly 15 and the second assembly 16 can be close to each other and seal and abut at other edges outside the clamping notch to form the movable box. The two clamping notches are combined to form a clamping opening 17.

[0072] The mounting post 18 has a diameter corresponding to the clamping opening 17 , and the first assembly 15 and the second assembly 16 clamp the mounting post 18 at the clamping opening 17 , and the access hole 11 is opened thereon;

[0073] A driving assembly is connected to the first assembly 15 and / or the second assembly 16 to drive the two to approach each other to form the blocking cavity 10 together with the mounting column 18, or to drive the two to move away from each other to open the blocking cavity 10.

[0074] The driving assembly is used to control the first assembly 15 and the second assembly 16 to move closer to or farther from each other, so that the two can form a test box 1 with a blocking cavity 10 when the mounting column 18 is clamped and abutted against each other.

[0075] This arrangement enables the opening and closing of the test box 1 to be controlled by the driving component when necessary, thereby eliminating the need for test personnel to enter the test environment to open the test box 1.

[0076] Reference Figure 1 Optionally, both ends of the mounting column 18 extend to the inner side and the outer side of the movable box respectively, the access hole 11 is provided on the end surface of the mounting column 18 extending into the movable box, a placement cavity 180 is provided in the mounting column 18, the placement cavity 180 is communicated with the access hole 11 and its inner diameter is larger than the access hole 11, and the placement cavity 180 is open at the other end surface of the mounting column 18.

[0077] With such arrangement, after the nozzle 62 for the nozzle blockage and motor stall test is connected to the test box 1, the delivery pipe 63 connected to the nozzle 62 in the scrubber can be placed in the placement chamber 180, and because the diameter of the placement chamber 180 is larger than the connecting hole and one end away from the connecting hole is open, there is sufficient space between the delivery pipe 63 having the same diameter as the end of the nozzle 62 and the inner wall of the placement chamber 180, and then when the nozzle 62 is blocked and the strength test of the scrubber is carried out, the air pressure on the side of the delivery pipe 63 is consistent with the external environment, that is, the air pressure in the test environment, so that whether the delivery pipe 63 will rupture can be effectively tested and the delivery pipe 63 can be effectively observed with the help of the placement chamber 180, so as to facilitate the smooth implementation and observation of the strength test of the scrubber.

[0078] Reference Figure 2 Optionally, the driving component comprises:

[0079] A first ejection mechanism 191, which is connected to the first assembly 15, and is used to drive the first assembly 15 to move closer to or away from the mounting column 18;

[0080] The second ejection mechanism 192 is connected to the second assembly 16 to drive the second assembly 16 to move closer to or away from the mounting post 18 .

[0081] Among them, the first ejection mechanism 191 and the second fixing mechanism in this embodiment are two groups of cylinders respectively connecting the first assembly 15 and the second assembly 16. In other embodiments, both can select other driving mechanisms that can drive the first assembly 15 and the second assembly 16 to be close to each other, such as hydraulic cylinders, electric telescopic rods, etc.

[0082] Optionally, sealing gaskets (not shown in the figure) are provided on the peripheries of the first assembly 15 and the second assembly 16 for contacting the mounting column 18 and for contacting each other.

[0083] This arrangement ensures that the first assembly 15 and the second assembly 16 have strong sealing properties when they are connected to each other to form the plugging cavity 10, thereby ensuring that the plugging solution in the plugging cavity 10 will not flow out during the subsequent plugging process, thereby ensuring the smooth progress of the scrubber strength test.

[0084] Reference Figure 1 , in a second aspect, a strength test system for a scrubber is provided, which comprises a scrubber and a solution-type nozzle plugging device as described above;

[0085] The scrubber comprises:

[0086] Washing pot 60;

[0087] A water spraying motor 61, which is connected to the washing pot 60 and is connected to a delivery pipe 63 for delivering washing liquid to the outside;

[0088] At least one nozzle 62, which is connected to the water spray motor 61 through the delivery pipeline 63;

[0089] The solution-type nozzle plugging device is used to connect one or more of the nozzles 62 .

[0090] When performing strength tests on washers of different vehicle models, the nozzle 62 blocking device can be connected one-to-one with different numbers of nozzles 62, or one nozzle 62 blocking device can correspond to all nozzles 62 at the same time. When one nozzle 62 blocking device corresponds to all nozzles 62 at the same time, the test box 1 is provided with the same number of access holes 11.

[0091] The plugging solution in the liquid storage tank 4 of the solution-type nozzle plugging device is consistent with the washing liquid in the washing pot 60, and the washing liquid is specifically selected or prepared by the test personnel according to the needs.

[0092] In the third aspect, a strength test method for a scrubber is provided, using the following technical solution:

[0093] A strength test method for a scrubber comprises the following steps:

[0094] S100, determining the relative heights of the water spray motor 61 and the nozzle 62 in the scrubber according to the installation position of the scrubber when it is actually used;

[0095] S200, extending the end of the nozzle 62 into the plugging cavity 10 through the access hole 11, and filling the plugging cavity 10 with a plugging solution and then sealing the plugging cavity 10;

[0096] S300 , starting the water spray motor 61 , and performing a blocked-rotor test of the water spray motor 61 when the nozzle 62 is blocked.

[0097] Among them, in step S200, specifically:

[0098] S210, extend the delivery pipe 63 into the mounting column 18, so that the nozzle of the nozzle 62 is outside the placement cavity 180 of the mounting column 18, and the connection area with the delivery pipe is inside the placement cavity 180 of the mounting column 18, and the nozzle 62 and the access hole 11 are sealed with a sealing ring 110, and sealing and reinforcement treatment are performed;

[0099] S220, controlling the first ejection mechanism 191 and the second ejection mechanism 192 to move, pushing the first assembly part and the second assembly part to move toward each other, and clamping the mounting column 18 to form the blocking cavity 10;

[0100] S230, close the third valve 41, and open the first valve 20 and the second valve 3 at the same time;

[0101] S240, start the liquid supply component 5 to inject the plugging solution into the plugging cavity 10; the air in the plugging cavity 10 will be discharged through the exhaust pipe 130, and finally the plugging cavity 10 will be filled with the plugging solution. When the liquid level sensor 30 detects the water level signal, close the liquid supply component 5, and close the first valve 20 and the second valve 3 at the same time.

[0102] In step S300, the level of the plugging solution in the delivery pipe 63 rises, and the air in the pipe is compressed. Due to the extremely difficult compression characteristics of the plugging solution, the air in the delivery pipe 63 cannot be pressed into the plugging cavity 10. In a very short time, it will be compressed to a certain volume in the delivery pipe 63 and then stabilized, thereby achieving the blocking of the water spray motor 61, that is, achieving effective blocking of the nozzle end of the nozzle 62. The water spray motor 61 stops running after being blocked for T1 seconds. At this time, the air in the delivery pipe 63 expands, so that the level of the plugging solution returns to the original position. The water spray motor 61 stops running for T2 seconds and then starts again. After the cycle starts and stops for a set number of times N times, the entire blocking test process ends, where T1≥3, N*T1+5*T2≤60, that is, the test requirements are met. The values ​​of T1, T2 and N are determined by the test personnel according to the test requirements.

[0103] Optionally, after step S300, the method further includes:

[0104] S400, recovering the plugging solution in the plugging cavity 10, and opening the test box 1 to allow the nozzle 62 to be directly connected to the external environment.

[0105] The plugging solution in the plugging cavity 10 is recovered into the liquid storage tank 4 by opening the drain pipe 40 of the third valve 41, and is then reused in the next test. When the test box 1 is subsequently opened, so that the nozzle 62 is directly connected to the outside and the spraying direction is not blocked by the structure of the test box 1, the next verification work can be carried out, such as testing the spraying capacity of the scrubber at the current ambient temperature.

[0106] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0107] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0108] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A solution type nozzle plugging device, characterized in that: It includes: A test box (1) has a blocking cavity (10) therein, on which an access hole (11), a liquid injection port (12) and an exhaust port (13) are provided, and a nozzle (62) is connected to the blocking cavity (10) through the access hole (11); a sealing ring (110) is provided around the access hole (11); a liquid delivery pipeline (2), which is connected to the liquid injection port (12) and is provided with a first valve (20) for delivering a plugging solution into the plugging cavity (10) through the liquid delivery pipeline (2); a second valve (3), connected to the exhaust port (13) and used for opening and closing the exhaust port (13); At least the portion of the test box (1) facing the spraying area of ​​the nozzle (62) is movably arranged to be opened and closed. When the test box (1) is in a closed state, the nozzle (62) is sealed and connected to the blocking chamber (10), and the nozzle (62) placed in the blocking chamber (10) is blocked by a blocking solution. When the test box (1) is in an open state, the nozzle (62) is connected to the external environment, the blockage is released, and there is no structural obstruction of the test box (1) in the spraying direction.

2. The solution type nozzle plugging device according to claim 1, characterized in that: Also includes: A liquid discharge port (14) is provided at the bottom of the test box (1); A liquid storage box (4) is provided with a liquid discharge pipe (40) connecting the liquid storage box (4) and the liquid discharge port (14), and a third valve (41) is provided on the liquid discharge pipe (40); A liquid supply component (5) is connected to the liquid storage tank (4) and delivers the plugging solution to the liquid injection port (12) through the liquid delivery pipeline (2).

3. The solution type nozzle plugging device according to claim 2, characterized in that: Also includes: A liquid level sensor (30) is arranged above the second valve (3) and is controllably connected to the liquid supply component (5), the first valve (20) and the second valve (3) so as to close the liquid supply component (5) when the liquid level in the blocking cavity (10) is higher than the second valve (3).

4. The solution type nozzle plugging device according to claim 1, characterized in that: The test box (1) comprises: A movable box body, comprising a first assembly (15) and a second assembly (16), wherein the first assembly (15) and the second assembly (16) are provided with a clamping notch at the same end, and the first assembly (15) and the second assembly (16) can be brought close to each other and sealed against each other at the edges outside the clamping notch to form the movable box body, and the two clamping notches are combined to form a clamping opening (17); A mounting column (18) having a diameter corresponding to the clamping opening (17), the first assembly (15) and the second assembly (16) clamping the mounting column (18) at the clamping opening (17), and the access hole (11) is formed on the mounting column; A driving assembly is connected to the first assembly (15) and / or the second assembly (16) to drive the two to approach each other so as to combine with the mounting column (18) to form the blocking cavity (10), or to drive the two to move away from each other so as to open the blocking cavity (10).

5. The solution type nozzle plugging device according to claim 4, characterized in that: The two ends of the mounting column (18) extend to the inside and outside of the movable box respectively; the access hole (11) is arranged on the end surface of the mounting column (18) extending into the movable box; a placement cavity (180) is arranged inside the mounting column (18); the placement cavity (180) is communicated with the access hole (11) and has an inner diameter larger than that of the access hole (11); the placement cavity (180) is open at the other end surface of the mounting column (18).

6. The solution type nozzle plugging device according to claim 4, characterized in that: The drive assembly comprises: A first ejection mechanism (191), connected to the first assembly (15) and used for driving the first assembly (15) to move closer to or away from the mounting column (18); A second ejection mechanism (192) is connected to the second assembly (16) and is used to drive the second assembly (16) to move closer to or away from the mounting column (18).

7. The solution type nozzle plugging device according to claim 4, characterized in that: Sealing pads are provided on the peripheries of the first assembly (15) and the second assembly (16) for contacting the mounting column (18) and for contacting each other.

8. A strength test system for a scrubber, characterized in that: It comprises a scrubber and a nozzle (62) blocking device as claimed in any one of claims 1 to 6; The scrubber comprises: Washing pot (60); A water spraying motor (61), which is connected to the washing pot (60) and is connected to a delivery pipe (63) for delivering washing liquid to the outside; at least one nozzle (62) connected to the water spraying motor (61) via the delivery pipe (63); The nozzle (62) plugging device is used to connect one or more of the nozzles (62).

9. A strength test method for a washer of a solution-type nozzle plugging device according to claim 1, characterized in that: It includes the following steps: Determining the relative heights of the water spray motor (61) and the nozzle (62) in the scrubber according to the installation position of the scrubber when it is actually used; The end of the nozzle (62) is extended into the plugging cavity (10) through the access hole (11), and the plugging cavity (10) is filled with a plugging solution and then the plugging cavity (10) is sealed; The water spray motor (61) is started, and a blocked rotor test of the water spray motor (61) is performed when the nozzle (62) is blocked.

Images