Pump valve control mechanism of salt spray test chamber

Abstract

The utility model discloses a salt spray test box pump valve control mechanism which comprises a workbench, a test box body is installed on the left side of the top wall of the workbench, a control box body is installed on the right side of the top wall of the workbench, a liquid storage tank is installed in the control box body, and a control assembly is installed on the inner wall of the control box body. The control assembly is communicated with the liquid storage tank, and the mixing assembly is mounted in the liquid storage tank. According to the pump valve control mechanism for the salt spray test box, a product is placed on the top of a placement frame, a salt solution is conveyed into an atomizing spray pipe by a liquid storage tank through a connecting pipe, salt spray is sprayed out until the test box body is filled with the salt solution, a controller controls the salt solution to control a second electromagnetic valve to be closed, and then water is pumped into the liquid storage tank through a left pipeline of a three-way pipe; the liquid level of the solution in the liquid storage tank can be monitored in real time, liquid can be automatically supplemented, real-time adjustment is carried out according to the concentration of the solution, and the situation that the concentration is too high or too low is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of salt spray test chambers, in particular to a pump and valve control mechanism for a salt spray test chamber. Background Art

[0002] Salt spray test chambers are used to test the corrosion resistance of various materials after surface treatment (including coatings, electroplating, inorganic and organic coatings, anodizing, rust-proofing oils, and other corrosion protection treatments). They use salt spray corrosion to test the reliability of the tested samples. Salt spray refers to a diffuse system composed of tiny salt droplets in the atmosphere. It is one of the three types of artificial environmental protection. Many companies need to simulate the destructive effects of the ocean climate on their products, so salt spray test chambers have become popular. Salt spray test chambers are divided into neutral salt spray and acidic salt spray. The difference between them lies in the standards they meet and the test methods. Salt spray test chambers, also known as "NSS" and "CASS" tests, are the most common test methods in artificial three-proof climates.

[0003] Regarding the above-mentioned related technologies, there are certain deficiencies when they are used; when adding water to the liquid storage tank, water is mainly supplied to the interior through a liquid pump connecting the pipeline, and the water inlet is controlled by a solenoid valve. However, the concentration of the solution inside the liquid storage tank cannot be controlled during operation, and each time water is added directly, the concentration may decrease.

[0004] To this end, the utility model provides a salt spray test chamber pump valve control mechanism to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a salt spray test chamber pump valve control mechanism to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a salt spray test chamber pump valve control mechanism, comprising a workbench, a test chamber body is installed on the left side of the workbench top wall, a control box body is installed on the right side of the workbench top wall, a liquid storage tank is installed inside the control box body, a control component is installed on the inner wall of the control box body, the control component is connected to the liquid storage tank, and a mixing component is installed inside the liquid storage tank;

[0007] The control component includes a liquid pump, which is fixedly connected to the bottom wall of the control box body. The liquid outlet of the liquid pump is connected to a liquid outlet pipe, and the liquid inlet of the liquid pump is connected to a tee. The outer wall of the left pipe of the tee is installed with a water control solenoid valve 1, and the outer wall of the right pipe of the tee is installed with a salt solution control solenoid valve 2. A low liquid level device is installed at the bottom of the inner wall of the liquid storage tank, and a high liquid level device is installed at the top of the inner wall of the liquid storage tank. The bottom of the outer wall of the liquid storage tank is connected to a connecting pipe, and the left end of the connecting pipe passes through the control box and the test box in sequence and is connected to an atomizing nozzle.

[0008] Through the above technical solution and the setting of the control component, the liquid level inside the liquid storage tank can be monitored in real time, and salt solution can be transported into the interior to spray salt mist, and the concentration of the solution inside the liquid storage tank can also be controlled.

[0009] Furthermore, the front end of the liquid outlet pipe is connected to the liquid storage tank, the left pipe of the three-way pipe is connected to the external water tank, the right pipe of the three-way pipe is connected to the external salt solution tank, and the atomizing nozzle is located inside the test box.

[0010] Through the above technical solution, the atomizing nozzle is located inside the test chamber and can spray salt mist to contact the product to be tested.

[0011] Furthermore, the mixing assembly includes a servo motor, which is fixedly connected to the top wall of the liquid storage tank. A transmission rod is rotatably installed on the middle part of the inner wall of the liquid storage tank through a bearing seat. The power shaft of the servo motor passes through the liquid storage tank through a bearing and is fixedly connected to the top of the transmission rod.

[0012] Through the above technical solution, the servo motor is connected through an external power supply and drives the transmission rod to rotate.

[0013] Furthermore, a plurality of stirring rods are evenly fixedly installed on the outer wall of the transmission rod, and a plurality of stirring blades are evenly fixedly installed on the outer wall of the stirring rod.

[0014] Through the above technical solution, the transmission rod drives the stirring rod and the stirring blades to mix the liquid inside the liquid storage tank evenly when rotating.

[0015] Furthermore, a concentration sensor is installed on the bottom wall of the liquid storage tank, and a placement rack is fixedly installed in the middle of the inner wall of the test box.

[0016] Through the above technical solution, the concentration sensor can monitor the concentration of the solution inside the liquid storage tank in real time, and the placement rack is mainly used to place the products to be tested.

[0017] Furthermore, a transparent observation cover is hingedly installed on the top wall of the test box, and a cover plate is hingedly installed on the top wall of the control box.

[0018] Through the above technical solution, the transparent observation cover can observe the inspection status of the product to be inspected in real time.

[0019] Furthermore, a controller is installed on the front wall of the control box, and support legs are fixedly installed on the four corners of the bottom wall of the workbench.

[0020] Through the above technical solution, the supporting legs have the function of supporting and fixing the entire device.

[0021] Beneficial effects

[0022] The utility model provides a pump and valve control mechanism for a salt spray test chamber. Compared with the prior art, it has the following beneficial effects:

[0023] (1) The pump and valve control mechanism of the salt spray test chamber is to place the product on the top of the placement rack, and the liquid storage tank transports the salt solution to the atomizing nozzle through the connecting pipe and sprays salt mist until it fills the test chamber body and contacts the product to be tested placed on the top of the placement rack. After the liquid level drops below the low liquid level meter, the controller controls the liquid pump to work, and the solenoid valve 1 and the salt solution control solenoid valve 2 are opened. The salt solution and water are extracted from the outside through the three-way pipe and then injected into the mixing component through the liquid outlet pipe. If the concentration is low, the controller controls the water control solenoid valve 1 to close and extract the salt solution into the liquid storage tank through the right pipe of the three-way pipe. If the concentration is high, the controller controls the salt solution control solenoid valve 2 to close and then pumps water into the liquid storage tank through the left pipe of the three-way pipe, so that the liquid level of the solution in the liquid storage tank can be monitored in real time, and the liquid can be automatically replenished and adjusted in real time according to the concentration of the solution to prevent the concentration from being too high or too low.

[0024] (2) The pump valve control mechanism of the salt spray test chamber starts the servo motor to drive the transmission rod to rotate. When the transmission rod rotates, it drives the stirring rod and the stirring blade to mix and stir the solution inside the liquid storage tank evenly, so that after the water and salt solution are drawn into the liquid storage tank, they can be mixed and stirred evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional diagram of the external structure of the utility model;

[0026] Figure 2 This is the main view of the internal structure of the utility model;

[0027] Figure 3 It is a top view of the internal structure of the utility model;

[0028] Figure 4 This is a top view of the rear side of the internal structure of the utility model;

[0029] Figure 5 It is a schematic structural diagram of the mixing component and the control component of the utility model.

[0030] In the figure, 1. workbench; 2. support legs; 3. test chamber; 4. control chamber; 5. liquid storage tank; 6. mixing assembly; 61. servo motor; 62. transmission rod; 63. stirring rod; 64. stirring blade; 65. concentration sensor; 7. control assembly; 71. liquid pump; 72. three-way pipe; 73. water control solenoid valve 1; 74. salt solution control solenoid valve 2; 75. liquid outlet pipe; 76. connecting pipe; 77. atomizing nozzle; 78. low liquid level sensor; 79. high liquid level sensor; 8. controller; 9. cover plate; 10. transparent observation cover; 11. placement rack. DETAILED DESCRIPTION

[0031] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] Example 1:

[0033] See also Figure 1-5 A salt spray test chamber pump valve control mechanism includes a workbench 1, a test chamber 3 is installed on the left side of the top wall of the workbench 1, a control box 4 is installed on the right side of the top wall of the workbench 1, a liquid storage tank 5 is installed inside the control box 4, a control component 7 is installed on the inner wall of the control box 4, the control component 7 is connected to the liquid storage tank 5, and a mixing component 6 is installed inside the liquid storage tank 5;

[0034] The control assembly 7 includes a liquid pump 71, which is fixedly connected to the inner bottom wall of the control box 4. The liquid outlet of the liquid pump 71 is connected to a liquid outlet pipe 75, and the liquid inlet of the liquid pump 71 is connected to a tee pipe 72. The outer wall of the left pipe of the tee pipe 72 is installed with a water control solenoid valve 1 73, and the outer wall of the right pipe of the tee pipe 72 is installed with a salt solution control solenoid valve 2 74. A low liquid level device 78 is installed at the bottom of the inner wall of the liquid storage tank 5, and a high liquid level device 79 is installed at the top of the inner wall of the liquid storage tank 5. The bottom of the outer wall of the liquid storage tank 5 is connected with a connecting pipe 76, and the left end of the connecting pipe 76 passes through the control box 4 and the test box 3 in sequence and is connected with an atomizing nozzle 77. The front end of the liquid outlet pipe 75 is connected to the liquid storage tank 5, the left pipe of the tee pipe 72 is connected to the external water tank, the right pipe of the tee pipe 72 is connected to the external salt solution tank, and the atomizing nozzle 77 is located inside the test box 3;

[0035] In the embodiment of the present utility model, the purpose of this setting is that the setting of the control component 7 can monitor the liquid level of the liquid storage tank 5 in real time, and intervene in time when the liquid level is too low, and then quickly add the internal solution. At the same time, with the cooperation of the concentration sensor 65, the concentration of the solution inside the liquid storage tank 5 can be monitored in real time. When the concentration is too low or too high, water or salt solution is pumped from the outside through the liquid pump 71 and the three-way pipe 72, and the opening and closing of the water control solenoid valve 1 73 and the salt solution control solenoid valve 2 74 are coordinated with each other.

[0036] Example 2:

[0037] See also Figure 1-5 , this embodiment provides a technical solution based on the first embodiment: the mixing assembly 6 includes a servo motor 61, the servo motor 61 is fixedly connected to the top wall of the liquid storage tank 5, a transmission rod 62 is rotatably installed in the middle of the inner wall of the liquid storage tank 5 through a bearing seat, the power shaft of the servo motor 61 passes through the liquid storage tank 5 and is fixedly connected to the top of the transmission rod 62 through a bearing, a plurality of stirring rods 63 are evenly fixedly installed on the outer wall of the transmission rod 62, a plurality of stirring blades 64 are evenly fixedly installed on the outer wall of the stirring rod 63, a concentration sensor 65 is installed on the inner bottom wall of the liquid storage tank 5, a placement rack 11 is fixedly installed in the middle of the inner wall of the test box 3, a transparent observation cover 10 is hingedly installed on the top wall of the test box 3, a cover plate 9 is hingedly installed on the top wall of the control box 4, a controller 8 is installed on the front wall of the control box 4, and support legs 2 are fixedly installed at the four corners of the bottom wall of the workbench 1;

[0038] In the embodiment of the present utility model, the purpose of this setting is that the setting of the mixing component 6 can fully mix the water and salt solution drawn into the liquid storage tank 5, and detect whether the solution meets the test requirements through the concentration sensor 65. The transparent observation cover 10 can observe the test conditions inside the test box 3.

[0039] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] During operation, first connect the servo motor 61, concentration sensor 65, liquid pump 71, water control solenoid valve 1 73, salt solution control solenoid valve 2 74, low liquid level meter 78, and high liquid level meter 79 through the external power supply and controller 8. When starting work, first open the transparent observation cover 10 and place the product to be tested on the top of the rack 11, then close the transparent observation cover 10. The liquid storage tank 5 is mainly used to store salt solution inside the pressure tank. The salt solution inside is transported to the atomizing nozzle 77 through the connecting pipe 76 through the liquid storage tank 5 and the salt mist is sprayed until it fills the test box 3 and contacts the product to be tested placed on the top of the rack 11. When the liquid level inside the liquid storage tank 5 drops below the low liquid level meter 78, the low liquid level meter 78 senses the drop in liquid level and controls the liquid pump 71 to start working through the controller 8, and controls the water control solenoid valve 1 73 and the salt solution control solenoid valve 2 74 to open, and controls the three-way pipe 72 to open. Salt solution and water are drawn from the outside, injected into the interior of the mixing assembly 6 after passing through the liquid outlet pipe 75, and then the servo motor 61 is started to drive the transmission rod 62 to rotate. When the transmission rod 62 rotates, it drives the stirring rod 63 and the stirring blade 64 to mix and stir the solution inside the liquid storage tank 5 evenly, and senses the change of the solution concentration through the liquid storage tank 5. If the concentration is low, the controller 8 controls the water control solenoid valve 1 73 to close and draw the salt solution into the liquid storage tank 5 through the right pipe of the tee pipe 72. If the concentration is high, the controller 8 controls the salt solution control solenoid valve 2 74 to close and then draw water into the liquid storage tank 5 through the left pipe of the tee pipe 72. During this period, the mixing assembly 6 is always in the working state in the liquid storage tank 5, and the liquid storage tank 5 stops delivering the solution to the connecting pipe 76. When the solution inside the liquid storage tank 5 reaches the high liquid level sensor 79, the controller 8 controls the liquid pump 71 to stop working.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A salt spray test chamber pump valve control mechanism, comprising a workbench (1), characterized in that: A test box (3) is installed on the left side of the top wall of the workbench (1), a control box (4) is installed on the right side of the top wall of the workbench (1), a liquid storage tank (5) is installed inside the control box (4), a control component (7) is installed on the inner wall of the control box (4), the control component (7) is connected to the liquid storage tank (5), and a mixing component (6) is installed inside the liquid storage tank (5); The control assembly (7) includes a liquid pump (71), the liquid pump (71) is fixedly connected to the inner bottom wall of the control box (4), the liquid outlet of the liquid pump (71) is connected to a liquid outlet pipe (75), the liquid inlet of the liquid pump (71) is connected to a three-way pipe (72), the outer wall of the left pipe of the three-way pipe (72) is installed with a water control solenoid valve (73), the outer wall of the right pipe of the three-way pipe (72) is installed with a salt solution control solenoid valve (74), the bottom of the inner wall of the liquid storage tank (5) is installed with a low liquid level device (78), the top of the inner wall of the liquid storage tank (5) is installed with a high liquid level device (79), the bottom of the outer wall of the liquid storage tank (5) is connected to a connecting pipe (76), the left end of the connecting pipe (76) passes through the control box (4) and the test box (3) in sequence and is connected to an atomizing nozzle (77).

2. A salt spray test chamber pump valve control mechanism according to claim 1, characterized in that: The front end of the liquid outlet pipe (75) is connected to the liquid storage tank (5), the left pipe of the three-way pipe (72) is connected to the external water tank, the right pipe of the three-way pipe (72) is connected to the external salt solution tank, and the atomizing nozzle (77) is located inside the test box (3).

3. The salt spray test chamber pump valve control mechanism according to claim 1, characterized in that: The mixing assembly (6) comprises a servo motor (61), the servo motor (61) being fixedly connected to the top wall of the liquid storage tank (5), a transmission rod (62) being rotatably mounted on the middle portion of the inner wall of the liquid storage tank (5) via a bearing seat, and a power shaft of the servo motor (61) passing through the liquid storage tank (5) via a bearing and being fixedly connected to the top end of the transmission rod (62).

4. A salt spray test chamber pump valve control mechanism according to claim 3, characterized in that: A plurality of stirring rods (63) are evenly fixedly installed on the outer wall of the transmission rod (62), and a plurality of stirring blades (64) are evenly fixedly installed on the outer wall of the stirring rod (63).

5. The salt spray test chamber pump valve control mechanism according to claim 1, characterized in that: A concentration sensor (65) is installed on the inner bottom wall of the liquid storage tank (5), and a placement rack (11) is fixedly installed on the middle part of the inner wall of the test box (3).

6. The salt spray test chamber pump valve control mechanism according to claim 1, characterized in that: A transparent observation cover (10) is hingedly mounted on the top wall of the test box (3), and a cover plate (9) is hingedly mounted on the top wall of the control box (4).

7. The salt spray test chamber pump valve control mechanism according to claim 1, characterized in that: A controller (8) is installed on the front wall of the control box (4), and support legs (2) are fixedly installed on the four corners of the bottom wall of the workbench (1).

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