Testing device

Abstract

The embodiment of the utility model discloses a testing device. The testing device comprises a testing box, wherein an inner cavity of the testing box is filled with water; the temperature control assembly is arranged on the test box and used for controlling the temperature of water in an inner cavity of the test box, and the water control assembly is used for controlling the capacity of the water in the inner cavity of the test box; the bearing frame is positioned in an inner cavity of the test box and is soaked in water; the bearing frame comprises a base and a plurality of support bodies which are sequentially arranged on the base in the X direction. A to-be-tested piece is placed on the support body. The testing device not only can test a plurality of pieces to be tested at the same time, but also can control the water capacity and the water temperature in the testing box, and can also realize regular replacement of the water in the testing box, so that the time cost and the labor cost of workers are reduced.

Description

Technical Field

[0001] This application relates to the technical field of water resistance testing of paints, and more specifically, this application relates to a testing device. Background Art

[0002] Coatings, such as paints, are required for the outer surfaces of buildings, automobiles, ships, etc. to protect the internal materials from damage. Therefore, the water resistance of coatings is very important and is also an important detection standard for whether the coatings are qualified. Generally, the water immersion test method is used for detection. By evaluating the performance of the coatings when in contact with the test water, it can be ensured that the coatings have good water resistance and can provide lasting protection during use.

[0003] Currently, a constant temperature water bath is used to test the water resistance of coatings. However, the constant temperature water bath does not have a special sample rack, and it is inconvenient to place the tinplate coated with the coating in the water bath. It is very easy to slide down when leaning against the side wall of the water bath, and it is difficult to meet the placement requirement that two-thirds of the test piece is immersed in water. At the same time, the water resistance test takes a long time, and the evaporation of water will cause the water level to drop. Especially when the test is carried out under test conditions at a higher temperature, the evaporation situation is very serious, and the water level will drop significantly, affecting the test results. In addition, during the water resistance test, since a small amount of coating components may dissolve or fall off into the water, it is necessary to change the water regularly. However, the process of changing the water in the water bath is relatively cumbersome, and it is necessary to take out the test samples one by one, and then put the samples back after changing the water, which is time-consuming and laborious.

[0004] Therefore, in order to overcome the defects existing in the prior art, a testing device needs to be provided. Utility Model Content

[0005] The purpose of the present utility model is to provide a testing device to solve at least one of the above technical problems.

[0006] In order to achieve at least one of the above purposes, the present application adopts the following technical solutions:

[0007] The present application provides a testing device, including:

[0008] A test box with water in its inner cavity;

[0009] A temperature control component arranged on the test box for controlling the temperature of the water in the inner cavity of the test box, and a water control component for controlling the water volume in the inner cavity of the test box;

[0010] A carrier rack immersed in water in the inner cavity of the test box; the carrier rack includes a base, and a plurality of support bodies arranged in sequence along the X direction on the base; the test piece is placed on the support body.

[0011] Optionally, the base includes a bottom plate portion, and two connecting portions respectively extending upward from two opposite side edges of the bottom plate portion, and two ends of the bracket body are respectively connected and fixed to the two connecting portions.

[0012] Optionally, the bracket body includes a support portion extending along the Y direction, and two ends of the support portion are respectively connected to the two connecting portions;

[0013] At least one containing portion with a containing cavity is formed by extending upward from the top of the support portion, the top of the containing portion is open, and openings are formed on both opposite side walls;

[0014] The workpiece to be tested is placed in the containing portion, and the water in the inner cavity of the test box enters the containing cavity of the containing portion through the openings.

[0015] Optionally, the bottom plate portion includes a plurality of through holes penetrating from the top surface to the bottom surface of the bottom plate portion.

[0016] Optionally, the testing device further includes a controller;

[0017] The temperature control component includes a temperature sensor installed at the bottom of the test box and connected to the controller for measuring the temperature of the water in the test box, and a heating element located at the bottom of the test box and connected to the controller.

[0018] Optionally, the test box includes a convex ring formed by the inner side wall of the test box protruding towards the inner cavity of the test box;

[0019] The base of the carrier is mounted on the convex ring;

[0020] The heating element is located below the convex ring.

[0021] Optionally, the heating element is a heating pipe laid horizontally at the bottom of the test box.

[0022] Optionally, the testing device includes a controller;

[0023] The water control component includes a water level sensor installed on the inner side wall of the test box and connected to the controller for measuring the height of the water in the inner cavity of the test box, and a water inlet hole and a water outlet hole respectively formed at the top and bottom of the side wall of the test box.

[0024] Optionally, the test box includes a cover plate, and the cover plate covers the top of the test box.

[0025] Optionally, the bracket body includes two containing portions, which are arranged side by side along the Y direction.

[0026] The beneficial effects of the present application are as follows:

[0027] In view of the problems existing in the current prior art, the present application provides a testing device. The base is used to support a plurality of bracket bodies, so that the plurality of bracket bodies can be stably placed in the inner cavity of the test box. Moreover, the arrangement of the plurality of bracket bodies arranged in sequence along the X direction can carry a plurality of test pieces at the same time and be immersed in the water in the inner cavity of the test box. This can not only perform water resistance tests on a plurality of test pieces simultaneously, but also the plurality of test pieces will not slide off under the support of the bracket bodies respectively, and there will be no influence due to too small a spacing between the plurality of test pieces; generally during the test, at least two-thirds of the volume of the test piece needs to be immersed in the water, and a constant temperature also needs to be maintained. Therefore, the water control component can accurately control the water volume in the test box. When the part of the test piece immersed in the water does not meet two-thirds of its total volume, water can be conveyed into the test box through the water control component, avoiding measurement errors caused by the water level dropping; of course, when all the water in the test box needs to be drained, all the water in the test box can be drained through the water control component for water replacement; when the temperature of the water in the test box drops to the preset temperature, the temperature control component raises the temperature of the water in the test box so that the test piece can always maintain a constant temperature during the water resistance test, improving the accuracy of the test. The testing device provided by the present application can not only test a plurality of test pieces simultaneously, but also control the water volume and the water temperature in the test box, reducing the time cost and labor cost of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following further elaborates in detail the specific embodiments of the present utility model with reference to the drawings.

[0029] Figure 1 Schematic structural diagram showing the testing device in an embodiment of the present application without a carrier.

[0030] Figure 2 Schematic structural diagram showing the carrier in the testing device in an embodiment of the present application.

[0031] Figure 3 Showing Figure 2 Schematic structural diagram of the bracket body of the carrier.

[0032] Figure 4 Showing Figure 2 Schematic structural diagram of the bottom plate part of the base of the carrier. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In the following description, for the purpose of explanation, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is obvious that these embodiments can also be implemented without these specific details.

[0034] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside 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 specific circumstances.

[0035] It should also be noted that in the description of the present 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 actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0036] To solve the problems existing in the prior art, an embodiment of the present application provides a testing device, as Figures 1-4 shown, including: a testing box 1 with water in its inner cavity; a temperature control component arranged on the testing box 1 for controlling the temperature of the water in the inner cavity of the testing box 1, and a water control component for controlling the water volume in the inner cavity of the testing box 1; a carrier located in the inner cavity of the testing box 1 and immersed in water; the carrier includes a base, and a plurality of support bodies arranged in sequence along the X direction on the base; a test piece 7 is placed on the support body. The test piece 7 can be an iron plate coated with paint.

[0037] In the above embodiments of the present application, the base is used to support a plurality of bracket bodies, so that the plurality of bracket bodies can be stably placed in the inner cavity of the test chamber 1. Moreover, the arrangement of the plurality of bracket bodies arranged in sequence along the X direction can carry a plurality of test pieces 7 at the same time and be immersed in the water in the inner cavity of the test chamber 1. This can not only perform water resistance tests on a plurality of test pieces 7 simultaneously, but also the plurality of test pieces 7 will not slide off under the support of the bracket bodies respectively, and there will be no influence due to too small a gap between the plurality of test pieces 7. Generally, during the test, at least two-thirds of the volume of the test piece 7 needs to be immersed in water, and a constant temperature also needs to be maintained. Therefore, the setting of the water control component can accurately control the water volume in the test chamber 1. When the immersed part of the test piece 7 in the water does not meet two-thirds of its total volume, water can be conveyed into the test chamber 1 through the water control component, avoiding measurement errors caused by the drop of the water level. Of course, when all the water in the test chamber 1 needs to be drained, all the water in the test chamber 1 can be drained through the water control component for water replacement. When the temperature of the water in the test chamber 1 drops to the preset temperature, the temperature control component heats the water in the test chamber 1 so that the test piece 7 always maintains a constant temperature during the water resistance test, improving the accuracy of the test. The test device provided by the present application can not only test a plurality of test pieces 7 at the same time, but also control the water volume and the water temperature in the test chamber 1, reducing the time cost and labor cost of the staff.

[0038] In a specific embodiment, the base includes a bottom plate portion 21 and two connecting portions 22 respectively extending upward from two opposite side edges of the bottom plate portion 21, and both ends of the bracket body are respectively connected and fixed to the two connecting portions 22. Specifically, the two connecting portions 22 are arranged side by side along the Y direction, and the arrangement of the two connecting portions 22 enables a plurality of bracket bodies to be stably connected to the base.

[0039] Furthermore, a plurality of bracket bodies can be connected to the connecting portion 22 in an inclined state, and the inclination angle can be set according to the actual situation. When the test piece 7 is placed on the bracket body, with the same water volume in the test chamber 1, the inclined state setting can enable more parts of the test piece 7 to be immersed in the water.

[0040] In a specific embodiment, the bracket body includes a support portion 31 extending along the Y direction. The support portion 31 extends along the Y direction, and both ends of the support portion 31 are respectively connected to the two connecting portions 22. At least one containing portion 32 having a containing cavity extends upward from the top of the support portion 31. The top of the containing portion 32 is open, and openings 322 are formed on both opposite side walls. The test piece 7 is placed in the containing portion 32, and the water in the inner cavity of the test box 1 enters the containing cavity of the containing portion 32 through the openings 322. The support portion 31 and the containing portion 32 are an integral body, and the inclination angle of the containing portion 32 is determined by the support portion 31. The test piece 7 is inserted into the containing cavity of the containing portion 32 through the open top 321 of the containing portion 32. The design of the openings 322 on both opposite side walls of the containing portion 32 allows the water in the test box 1 to flow smoothly into the containing cavity of the containing portion 32, so that the test piece 7 can be immersed in the water. In addition, the material cost of the bracket body can be reduced.

[0041] Specifically, as Figure 2 shown, the bracket body may include two containing portions 32, which are arranged side by side along the Y direction. The number of bracket bodies can be nine, so there are a total of eighteen containing portions 32, that is, eighteen test pieces 7 can be placed. In actual application, the same kind of paint water resistance test needs to be repeated three times. The eighteen containing portions 32 can place eighteen test pieces 7. In this way, the water resistance tests of six different kinds of paints can be carried out simultaneously, greatly improving the test efficiency.

[0042] In a specific embodiment, the test device further includes a controller. The temperature control component includes a temperature sensor 51 installed at the bottom of the test box 1 and connected to the controller for measuring the temperature of the water in the test box 1, and a heating element 52 located at the bottom of the test box 1 and connected to the controller. The temperature sensor 51 is used to measure the temperature of the water in the test box 1 and transmit the temperature information to the controller. The controller controls the heating element 52 to heat the water in the inner cavity of the test box 1 according to the temperature information. When the temperature of the water in the test box 1 is lower than the preset temperature of the controller, the controller controls the heating element 52 to generate heat until the temperature of the water reaches the preset temperature, and then the heating of the water can be stopped. In this way, the temperature of the water in the test box 1 can always be in a constant state, improving the paint water resistance test efficiency. The design of the heating element 52 at the bottom of the test box 1 will not affect the placement of the carrier, and even if there is a small amount of water, it will not affect the heating of the water. Similarly, the design of the temperature sensor 51 at the bottom of the test box 1 will not cause inaccurate measurement due to too little water. It should be noted that in order to make the temperature of the water in the test box 1 measured by the temperature sensor 51 more accurate, the temperature sensor 51 does not contact the heating element 52.

[0043] In a specific example, the heating element 52 is a heating pipe laid horizontally at the bottom of the test chamber 1. The heating pipe can be in a shape of being circuitously bent, so that the area of the heating pipe laid flat at the bottom of the test chamber 1 can be increased. Of course, it can also be in a U shape as shown in Figure 1 shown.

[0044] Furthermore, the test chamber 1 includes a convex ring 11 formed by the inner side wall of the test chamber 1 protruding towards the inner cavity of the test chamber 1; the base of the carrier is mounted on the convex ring 11, and the heating element 52 is located below the convex ring 11. The convex ring 11 can support the bottom plate portion 21 of the base, and the base will not contact the heating element 52, so that the heating element 52 can be separated from the support body for holding the test piece 7. The bottom plate portion 21 is provided with a plurality of through holes 211 penetrating from the top surface to the bottom surface of the bottom plate portion 21. The design of the through holes 211 can enable the water to circulate between the upper and lower sides of the bottom plate portion 21. When the heating element 52 heats the water, the heat can quickly spread to the water in the entire test chamber 1.

[0045] In a specific embodiment, the water control assembly includes a water level sensor 61 mounted on the inner side wall of the test chamber 1 and connected to the controller for measuring the height of the water in the inner cavity of the test chamber 1. The water level sensor 61 is located at the top of the inner side wall of the test chamber 1, so that the water level sensor 61 will not be submerged by water, that is, it will not affect the measurement of the height of the water in the inner cavity of the test chamber 1; the water control assembly further includes a water inlet hole 62 and a water outlet hole 63 formed at the top and bottom of the side wall of the test chamber 1 respectively. The water level sensor 61 is used to measure the height of the water in the inner cavity of the test chamber 1 and transmit the height information to the controller; the controller controls whether the external water flows into the inner cavity of the test chamber 1 through the water inlet hole 62 or whether the water in the test chamber 1 flows out of the test chamber 1 through the water outlet hole 63 according to the height information. When the water level sensor 61 measures that the height of the water in the test chamber 1 is lower than the preset height, the controller controls the external water to flow into the test chamber 1 through the water inlet hole 62. When the water in the test chamber 1 needs to be changed, the controller controls the external water to flow out of the test chamber 1 through the water outlet hole 63, and then conveys water into the test chamber 1 through the water inlet hole 62. In practical applications, the water in the test chamber 1 can also be changed regularly by setting a time through the controller.

[0046] In a specific embodiment, the test chamber 1 includes a cover plate 12, and the cover plate 12 can cover the top of the test chamber 1. Specifically, when the carrier needs to be placed into the test chamber 1, the cover plate 12 is opened, and during the test process, the cover plate 12 covers the top of the test chamber 1 to reduce the evaporation of the water in the test chamber 1.

[0047] The testing device provided in the present application can not only test multiple test pieces 7 at the same time, but also control the capacity and temperature of water in the test box 1, and can also realize the timed replacement of water in the test box 1, thereby reducing the time and labor costs of the staff.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A testing device, characterized in that: include: A test box having water in its inner cavity; A temperature control component disposed on the test box for controlling the temperature of water in the inner cavity of the test box, and a water control component for controlling the water volume in the inner cavity of the test box; A support frame immersed in water and located in the inner cavity of the test box; the support frame includes a base and a plurality of support bodies arranged on the base in sequence along the X direction; and the test piece is placed on the support body.

2. The testing device according to claim 1, characterized in that: The base comprises a bottom plate portion and two connecting portions formed by two opposite side edges of the bottom plate portion extending upwards respectively, and two ends of the bracket body are respectively connected and fixed to the two connecting portions.

3. The testing device according to claim 2, characterized in that: The support body includes a support portion extending along the Y direction, and two ends of the support portion are respectively connected to the two connecting portions; At least one containing portion with a containing cavity is formed extending upward from the top of the supporting portion, the top of the containing portion is open, and two opposite side walls have openings; The test piece is placed in the containing part, and the water in the inner cavity of the test box enters the containing cavity of the containing part through the opening.

4. The testing device according to claim 2, characterized in that: The bottom plate portion includes a plurality of through holes extending from the top surface of the bottom plate portion to the bottom surface.

5. The testing device according to claim 1, characterized in that: The testing device also includes a controller; The temperature control assembly includes a temperature sensor installed at the bottom of the test box and connected to the controller for measuring the temperature of water in the test box, and a heating element located at the bottom of the test box and connected to the controller.

6. The testing device according to claim 5, characterized in that: The test box includes a convex ring formed by the inner side wall of the test box protruding toward the inner cavity of the test box; The base of the carrier is mounted on the convex ring; The heating element is located below the convex ring.

7. The testing device according to claim 5, characterized in that: The heating element is a heating tube which is horizontally laid on the bottom of the test box.

8. The testing device according to claim 1, characterized in that: The testing device comprises a controller; The water control assembly includes a water level sensor installed on the inner wall of the test box and connected to the controller for measuring the height of water in the inner cavity of the test box, and a water inlet and outlet respectively formed on the top and bottom of the side wall of the test box.

9. The testing device according to claim 1, characterized in that: The test box includes a cover plate, and the cover plate is covered on the top of the test box.

10. The testing device according to claim 3, characterized in that: The support body includes two containing parts, which are arranged side by side along the Y direction.

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