Resilience testing device

Abstract

The utility model provides a kind of resilience testing device, including test box and loading suite, test box includes box bottom plate and box side plate, box bottom plate and box side plate are collectively enclosed to form the test cavity with top opening, at least one box side plate is formed with the slot that extends along vertical direction and is through in and out test cavity, at least one slot is provided with vertical measurement scale mark;Loading suite includes preloading plate and loading plate, the weight of preloading plate is smaller than loading plate, preloading plate and loading plate are formed with plate part, the shape of the plate part of preloading plate and loading plate is matched with the vertical section shape of test cavity, so that preloading plate and loading plate can be placed into test cavity from top opening. According to the utility model, the resilience test accuracy and operation convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of materials testing technology, and in particular to a resilience testing device. Background Technology

[0002] Resilience is the ability of a material to return to its original shape and size after being deformed under stress. It is a key characteristic of engineering materials and directly affects the cushioning performance of engineering structures. Current resilience testing techniques suffer from insufficient accuracy and cumbersome procedures. Utility Model Content

[0003] To solve at least one of the aforementioned problems, this utility model provides a resilience testing device.

[0004] Specifically, this utility model is achieved through the following technical solution:

[0005] This utility model provides a resilience testing device, including a test box and a loading kit. The test box includes a bottom plate and side plates, which together form a test cavity with a top opening. At least one side plate has a slot extending vertically and penetrating the inside and outside of the test cavity, and at least one slot has a vertical measurement scale. The loading kit includes a preload plate and a loading plate. The preload plate is lighter than the loading plate. Both the preload plate and the loading plate have plate portions, and the shapes of the plate portions of the preload plate and the loading plate match the vertical cross-sectional shape of the test cavity, so that the preload plate and the loading plate can be inserted into the test cavity from the top opening.

[0006] In some embodiments, the loading kit includes one preloaded board and two or more loading boards.

[0007] In some embodiments, the preload plate and / or loading plate are formed with strips that extend horizontally from the slotted position of the plate, so that when the preload plate and / or loading plate is placed in the test chamber, the strips can extend out of the test chamber from the slot.

[0008] In some embodiments, the number of side panels is four, and the vertical cross-section of the test cavity formed by the bottom plate and the four side panels is square. Each side panel has the slot formed at the middle position in its horizontal extension direction.

[0009] In some embodiments, a horizontal rotation mechanism is provided at the bottom of the test chamber base plate, thereby enabling the test chamber to rotate along a vertical axis.

[0010] In some embodiments, a lifting frame is provided at the bottom of the test chamber, and a storage space is formed inside or at the top of the lifting frame, which can accommodate the loading kit.

[0011] In some embodiments, the lifting frame includes guide rods and drive rods, with the drive rods disposed between a pair of guide rods.

[0012] In some embodiments, a mounting frame is provided at the bottom of the test chamber, and a storage space is formed inside or at the top of the mounting frame, which can accommodate the loading kit.

[0013] In some embodiments, an aluminum foil is also included, the aluminum foil being matched to the vertical cross-sectional shape of the test chamber.

[0014] In some embodiments, the shape of the pad matches the vertical cross-sectional shape of the test chamber.

[0015] According to the embodiments of this utility model, a material sample can be placed in the test chamber by means of a test chamber with a top opening and a preloading plate and a loading plate whose vertical cross-sectional shape matches that of the test chamber. The preloading plate is placed on the material sample to make the surface of the material sample flat, and the loading plate is placed on the material sample to implement loading. This ensures that the material sample, the preloading plate, and the loading plate remain in a stable position without shifting in both the loaded and unloaded states, thereby ensuring that the loading force applied to the material sample is balanced and improving the accuracy of the test. By setting a measuring scale at the slot, the operator can observe the positional relationship between the material sample and the measuring scale from outside the test chamber, thereby obtaining the thickness change of the material sample when compressed and rebounded by the loading force, improving the convenience of the test operation.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is a schematic diagram of the resilience testing device in the first embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the resilience testing device in the second embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the resilience testing device in the third embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the resilience testing device in the fourth embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the resilience testing device in the fifth embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram of the resilience testing device in the sixth embodiment of this utility model.

[0024] Figure label:

[0025] 10: Test chamber; 11: Side panel of the chamber; 12: Bottom panel of the chamber; 13: Slot; 14: Measuring scale; 20: Loading plate; 21: Plate section; 22: Strip section; 30: Horizontal rotation mechanism; 40: Fixing frame; 41: Fixing top plate; 42: Fixing frame; 43: Fixing bottom plate; 44: Fixing partition; 50: Lifting frame; 51: Lifting top plate; 52: Guide rod; 53: Drive rod. Detailed Implementation

[0026] The present invention will now be discussed with reference to several embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present invention, and are not intended to imply any limitation on the scope of the present invention.

[0027] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to"; the terms "embodiment" and "one embodiment" are to be interpreted as "at least one embodiment"; the term "another embodiment" is to be interpreted as "at least one other embodiment"; the terms "first," "second," etc., may refer to different or the same objects; the term "setup" is not limited to direct or indirect connections, nor to specific connection methods. Other explicit and implicit definitions may also be included below.

[0028] Specific numerical values ​​or ranges may be mentioned in the following description. It should be understood that these values ​​and ranges are merely exemplary and may be helpful in putting the ideas of this invention into practice. However, the description of these examples is not intended to limit the scope of this invention in any way. These values ​​or ranges may be set differently depending on the specific application scenario and requirements.

[0029] As mentioned above, existing technologies suffer from insufficient testing accuracy and cumbersome operation in resilience testing. The resilience testing device proposed in this invention at least partially solves these problems. The following will refer to... Figures 1-6This section describes the structure and working principle of a resilience testing device according to an exemplary embodiment of the present invention. The resilience testing device of this embodiment generally includes a test chamber 10 and a loading kit. The test chamber 10 is used to apply load to a material sample and test its resilience within a test cavity formed therein. The loading kit consists of a pre-loading plate and a loading plate 20. The number of pre-loading plates and loading plates 20 can be arbitrary. The pre-loading plate is placed on the material sample before the formal loading load to make the surface of the material sample flat and eliminate the effect of initial relaxation. The loading plate 20 is placed on the material sample within the test cavity to apply load to the material sample, causing significant compression of the material sample, and then measuring the resilience coefficient.

[0030] For example, there is one preload plate and 16 loading plates 20. The weight of each loading plate can be exactly the same or different from each other. Before each test of the thickness of the material sample, the preload plate is placed on the upper surface of the material sample for a period of time, for example 1-2 seconds. After the preload plate is removed, one loading plate 20 or two or more loading plates 20 can be randomly selected and stacked on the upper surface of the material sample to apply different load weights to the material sample.

[0031] The test chamber 10 of this embodiment consists of a bottom plate 12 and side plates 11. The side plates 11 surround the surface of the bottom plate 12 and together with the bottom plate 12 form a test cavity. Since no top plate is provided, an opening is formed at the top of the test cavity. Material samples, preloaded plates, and loading plates 20 are placed into and removed from the test cavity through this opening. Exemplarily, the bottom plate 12 and the side plates 11 are connected by welding, screwing, riveting, or integral molding.

[0032] To clearly describe the working method of this utility model embodiment, the direction perpendicular to the horizontal ground is defined as "vertical" and the direction parallel to the horizontal ground is defined as "horizontal plane".

[0033] In one embodiment, the side plate 11 of the test chamber extends vertically, so that the cross-sectional shape of the test chamber remains exactly the same in any vertical direction. This allows the material sample, the preload plate, and the loading plate 20 to be smoothly placed into and removed from the test chamber. When loading the material sample, the edges of the material sample, the preload plate, and the loading plate 20 will not rub against the side plate 11 of the test chamber, thus avoiding friction affecting the loading load and avoiding friction affecting the rebound amplitude of the material sample.

[0034] In one embodiment, the test cavity is formed by four mutually orthogonal box side plates 11 forming a square or rectangle. In another embodiment, the test cavity can also be other polygons or any non-polygons, such as circles. To reduce the friction between the box side plates 11 and the material sample, the preload plate and the loading plate 20, the inner surface of the box side plates 11 and the corners between adjacent box side plates 11 are polished to make these areas smooth.

[0035] In one embodiment, a slot 13 is formed on one of the side panels 11 of the test chamber. The slot 13 extends vertically and penetrates the inside and outside of the test chamber, dividing the side panel 11 into two parts. A measuring scale 14 is set on one or both parts simultaneously. The measuring scale 14 extends in the same direction as the slot 13, allowing the tester to clearly observe the height position of the material sample inside the test chamber 10 from outside the test chamber 10, as well as the value of the measuring scale 14 at that height position. With this configuration, during load loading, unloading, and material sample rebound, the bottom of the material sample, preload plate, and loading plate 20 is supported by the bottom plate 12 of the test chamber, and the edges are limited by the side panels 11 of the test chamber, ensuring that the positions of the material sample, preload plate, and loading plate 20 remain stable. This improves the load loading balance and the rebound test accuracy. Furthermore, the tester does not need to hold a measuring ruler, avoiding the impact of measuring ruler placement deviation on test accuracy, and also frees up the tester's hands, improving the convenience of the test process.

[0036] In another embodiment, slots 13 can be made on any two, three or all of the side panels 11 of the box. By setting the number of slots 13 in this way, the tester can insert his / her fingers into the test chamber through the slots 13, which makes it convenient for the tester to place and pick up the material sample, the preload plate and the loading plate 20.

[0037] In another embodiment, when slots 13 are opened on two or more side panels 11, a measuring scale 14 can be set at only one of the slots 13, or a measuring scale 14 can be set at any two, three or all of the slots 13. The more measuring scales 14 there are, the more convenient it is for the tester to observe the rebound of the material sample, and the values ​​of the measuring scales 14 observed at different slots 13 can be cross-checked or averaged.

[0038] In one embodiment, the slot 13 is located at the middle position of the side plate 11 in the horizontal extension direction. This arrangement allows for observation of the rebound of the midpoint area of ​​each edge of the material sample, and can more accurately reflect the true rebound of the material sample.

[0039] In one embodiment, the preloading plate and loading plate 20 may be formed only as a plate portion 21 that matches the vertical cross-sectional shape of the test chamber. "Shape matching" can mean that the shape of the plate portion 21 is completely consistent with the vertical cross-sectional shape of the test chamber, so that the side plate 11 provides full horizontal restraint for the preloading plate and loading plate 20. Alternatively, "shape matching" can mean that the shape of the plate portion 21 has the same dimensions as the vertical shape of the test chamber at one edge position, while the other edge position can be smaller than the vertical shape of the test chamber, thus allowing a portion of the side plate 11 to provide horizontal restraint for the preloading plate and loading plate 20. With this configuration, during the insertion and removal of the preloading plate and loading plate 20 from the test chamber, the tester can use tools such as vacuum or magnetic chucks to fix the material sample, preloading plate, and loading plate 20, or can insert their fingers into the test chamber to directly support the material sample, preloading plate, and loading plate 20.

[0040] In one embodiment, the preload plate and the loading plate 20 are further provided with strips 22 at the edges of the plate portions 21. The strips 22 extend horizontally from the edges of the plate portions 21 away from the plate portions 21. Since the top of the slot 13 is also open, the strips 22 can also move relative to each other along the slot 13 during the process of the preload plate and the loading plate 20 being placed into the test chamber from the top opening of the test chamber 10. On the one hand, the interaction between the slot 13 and the strips 22 can further provide horizontal limiting for the preload plate and the loading plate. On the other hand, the strips 22 extend out of the test chamber 10 through the slot 13, and the tester can pick up the preload plate and the loading plate 20 through the strips 22, making the test process more convenient.

[0041] In one embodiment, a horizontal rotation mechanism 30 may be additionally provided at the bottom of the bottom plate 12 of the test chamber. For example, the horizontal rotation mechanism 30 may be a ball bearing, which allows the tester to operate the test chamber 10 to rotate freely along the vertical axis, thereby facilitating the observation of the measurement scale 14 value at the slot 13.

[0042] The resilience testing device of this utility model may further include a fixed frame 40 or a lifting frame 50 to support the test box 10 at a suitable height, thereby facilitating the observation of the measurement scale 14 value at the slot 13, and facilitating the placement and removal of the material sample, preload plate, and loading plate 20. In one embodiment, such as Figure 3 As shown, the bottom plate 12 of the test chamber 10 can be directly mounted on the fixed top plate 41 of the mounting frame 40. The mounting frame 40 consists of a fixed top plate 41, a fixed bottom plate 43, a fixed partition 44, and a fixed frame 42. The fixed partition 44 has a receiving space for placing the loading kit. In another embodiment, the horizontal rotation mechanism 30 at the bottom of the test chamber 10 is mounted on the fixed top plate 41 of the mounting frame 40.

[0043] In one embodiment, such as Figure 4As shown, the top plate 41 of the mounting bracket 40 is configured to have a large area, so that when the test box 10 is placed, the top surface of the top plate 41 forms a receiving space for placing the loading kit.

[0044] In one embodiment, such as Figure 5 As shown, the lifting frame 50 consists of a pair of drive rods 53, which are positioned between the lifting top plate 51 and the lifting bottom plate. The height between the lifting top plate 51 and the lifting bottom plate is adjusted by the drive rods 53, thereby facilitating the operation of the test by the test personnel. In addition, a receiving space for placing the loading kit is formed between the lifting top plate 51 and the lifting bottom plate.

[0045] In one embodiment, such as Figure 6 As shown, the lifting frame 50 consists of a pair of guide rods 52 and a drive rod 53 located between the pair of guide rods 52. The guide rods 52 are used to improve the stability of the lifting top plate 51 during the lifting process and avoid shaking during the test, which would affect the test accuracy. For example, the drive rod 53 can be in the form of a pneumatic piston rod, a hydraulic piston rod, a motor-driven lead screw nut rod, etc.

[0046] In one embodiment, the bottom of the fixed frame 40 and the lifting frame 50 may also be equipped with wheel sets to facilitate the free movement of the fixed frame 40 and the lifting frame 50 in driving the test box 10 and the loading kit.

[0047] In one embodiment, in addition to the test chamber 10 and the loading kit, the resilience testing device of this utility model embodiment also includes aluminum foil. When two material samples are stacked and placed in the test chamber, aluminum foil is inserted between the two material samples. The aluminum foil provides support strength for the contact interface of the two material samples, avoiding local excessive deformation and damage to the material samples when they are loaded due to the softness of the contact interface, thereby affecting the accuracy of the resilience test.

[0048] In one embodiment, the resilience testing device of this utility model further includes a pad, the shape of which matches the vertical cross-sectional shape of the test chamber, allowing the pad to be smoothly placed into the test chamber. By inserting the pad between the bottom plate 12 of the chamber and the material sample, the pad can be conveniently used to raise the material sample to the initial measurement height.

[0049] In this embodiment of the invention, the preloaded plate weighs less than the loading plate 20. For example, the preloaded plate and the loading plate 20 can have the same or different shapes. Before each test of the material sample thickness, the preloaded plate is placed on the upper surface of the material sample for a period of time. After removing the preloaded plate, the loading plate 20 is placed on the upper surface of the material sample and the load is maintained for a period of time before being removed. The rebound of the material sample is then observed, and the material rebound coefficient is calculated.

[0050] The description of the embodiments herein, including any references to directions and orientations, is for ease of description only and should not be construed as limiting the scope of protection of this utility model. The description of preferred embodiments involves combinations of features, which may exist independently or in combination; this utility model is not particularly limited to the preferred embodiments. The scope of this utility model is defined by the claims.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A resilience testing device, characterized in that, The test chamber includes a test box and a loading kit. The test box includes a bottom plate and side plates, which together form a test cavity with a top opening. At least one side plate has a slot that extends vertically and penetrates the inside and outside of the test cavity, and a vertical measurement scale is provided at at least one slot. The loading kit includes a preload plate and a loading plate. The preload plate is lighter than the loading plate. Both the preload plate and the loading plate have plate sections. The shapes of the plate sections of the preload plate and the loading plate match the vertical cross-sectional shape of the test cavity, so that the preload plate and the loading plate can be inserted into the test cavity from the top opening.

2. The resilience testing device according to claim 1, characterized in that, The loading kit includes one preloaded board and two or more loading boards.

3. The resilience testing device according to claim 1, characterized in that, The preload plate and / or loading plate are formed with strips that extend horizontally from the slotted position of the plate, so that when the preload plate and / or loading plate is placed in the test chamber, the strips can extend out of the test chamber from the slot.

4. The resilience testing device according to any one of claims 1-3, characterized in that, The test chamber has four side panels, and the vertical cross-section of the test chamber formed by the bottom plate and the four side panels is square. Each side panel has the slot formed at the middle position of its horizontal extension direction.

5. The resilience testing device according to claim 1, characterized in that, A horizontal rotation mechanism is provided at the bottom of the test chamber, which allows the test chamber to rotate along the vertical axis.

6. The resilience testing device according to claim 1, characterized in that, The test chamber is equipped with a lifting frame at the bottom, and the interior or top of the lifting frame forms a storage space that can accommodate the loading kit.

7. The resilience testing device according to claim 6, characterized in that, The lifting frame includes guide rods and drive rods, with the drive rods positioned between a pair of guide rods.

8. The resilience testing device according to claim 1, characterized in that, The test chamber has a mounting bracket at the bottom, and the inside or top of the mounting bracket forms a storage space that can accommodate the loading kit.

9. The resilience testing device according to claim 1, characterized in that, It also includes aluminum foil, which matches the vertical cross-sectional shape of the test chamber.

10. The resilience testing device according to claim 1, characterized in that, It also includes a pad, the shape of which matches the vertical cross-sectional shape of the test chamber.

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