Device for testing droop value of mechanically sprayed plastering gypsum

Abstract

The utility model relates to a droop value testing device for mechanically sprayed plastering gypsum, which comprises a base, a testing platform, a limiting assembly and an infrared distance meter, and is characterized in that the limiting assembly can self-lock the testing platform and is vertical to the base for relative positioning; the plaster layer is formed on the test platform through mechanical spraying of plaster, the end face, close to the overturning end of the test platform, of the plaster layer is a reference face, D = D1-D2, D is a droop value, D1 is the vertical distance from the reference face measured for the first time to the infrared distance meter, and D2 is the vertical distance from the end face of the droop edge measured for the second time to the infrared distance meter. On one hand, on the basis of 90-degree droop formed by the limiting assembly, the droop value is accurately obtained by combining data measurement of two horizontal references, and the error rate of measured data is reduced; on the other hand, data measured by the infrared distance meter are accurate and high in consistency, meanwhile, repeatability is good, and in addition, the structure is simple, and implementation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of performance test, specifically relates to a sag value testing device of mechanical spraying plastering gypsum. BACKGROUND

[0002] The sag value testing of traditional mechanical spraying plastering gypsum is to measure the distance before and after 15 minutes to calculate the sag value. The testing steps are as follows: placing the mold frame on the concrete plate, filling the mixed plastering gypsum in the mold frame, removing the frame after leveling, and placing the concrete plate vertically on the base surface for 15 minutes, and then testing the minimum distance from the bottom edge of the concrete plate to the bottom edge of the sample.

[0003] Obviously, the sag value testing of the above-mentioned mechanical spraying plastering gypsum has the following disadvantages:

[0004] (1) It cannot guarantee that the placed base surface is consistent, which leads to the fact that the placement angle cannot be guaranteed to be 90°, and further leads to the fact that the error rate of the measured data is large;

[0005] (2) The steel ruler used for testing has low precision, and when the concrete edge coincides with the steel ruler as the measurement endpoint during testing, it will lead to the fact that each person's measurement is inconsistent due to visual reasons, that is, the sag value cannot be accurately obtained. SUMMARY

[0006] The utility model wants to solve the technical problem of overcoming the deficiencies of the prior art and providing a new sag value testing device for mechanical spraying plastering gypsum.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme:

[0008] A sag value testing device for mechanical spraying plastering gypsum, comprising a self-adjustable base, a testing platform installed on the base by turning over from one side and capable of being horizontally supported on the base, a limiting component installed on the base and / or the testing platform to limit the testing platform in a vertical state, and an infrared distance meter installed on the base and close to the turning end of the testing platform, wherein the limiting component can self-lock and vertically position the testing platform relative to the base; the mechanical spraying plastering gypsum forms a gypsum layer on the testing platform, and the end face of the gypsum layer close to the turning end of the testing platform is the reference surface, wherein D=D1-D2, D is the sag value, D1 is the vertical distance from the reference surface to the infrared distance meter in the first measurement, and D2 is the vertical distance from the end face of the sagging edge to the infrared distance meter in the second measurement.

[0009] Preferably, a connecting seat is provided on the base, and the testing platform is pivotally installed on the connecting seat. This makes it more convenient to switch between horizontal and vertical positions, facilitating actual operation.

[0010] According to one specific implementation and preferred aspect of the utility model, the limiting assembly comprises a pad module fixed between the two connecting seats and capable of matching the support of the lower end of the vertical test platform, a locking piece for relatively locking the connecting seat and the test platform, wherein the vertical test platform is matched with the pad module and the bottom surface is supported on the base in close contact. By matching and pasting, the contact area is increased, thereby improving the stability of the vertical state, and the relative locking of the locking piece is also facilitated.

[0011] Preferably, the locking piece is a locking pin, the connecting seat and the test platform are provided with pin holes capable of being aligned, and the locking pin is inserted into the pin hole to relatively lock the connecting seat and the test platform. Based on the disassembly and assembly of the locking pin, the locking is formed, and under the limitation of matching support, the stability of the vertical state is further improved by the support of the locking pin.

[0012] In some specific implementations, the locking piece further comprises an inclined strut rod inclined between the test platform and the base. Based on the further support of the inclined strut rod, the stability of the vertical test platform is further strengthened.

[0013] According to another specific implementation and preferred aspect of the utility model, the base is provided with a strut slot, the inclined strut rod is a telescopic rod, and the telescopic rod is disassembled and assembled in the strut slot. Based on the strut slot, the telescopic rod can be hidden (at least when the test platform is in a horizontal state, the test platform can close the top of the strut slot), and the support is facilitated.

[0014] Preferably, the telescopic rod is rotatably installed at one end of the base, and the other end forms an inclined strut surface. In the vertical state of the test platform, the telescopic rod, the base and the test platform form a closed right triangle. Generally, the right triangle is an isosceles right triangle, and the stability of the vertical test platform is strengthened by using the principle that the triangle has stable support.

[0015] According to another specific implementation and preferred aspect of the utility model, the infrared distance meter is transversely installed on the base along the length direction of the reference surface, and D2 is the shortest vertical distance from the end surface of the lower edge of the second measurement to the infrared distance meter. Based on the test of multiple point positions, especially the acquisition of D2, the value of D is more accurately obtained.

[0016] In addition, the base comprises a seat body and a seat leg, wherein the level meter is installed on the seat body, and the height of the seat leg is adjusted based on the level meter to implement the leveling of the base. Based on the leveling, the formation of the gypsum layer is facilitated, and the equal distance control of D1 is also facilitated, thereby obtaining the final detection result.

[0017] Preferably, the test platform comprises a base plate and a concrete plate installed on the base plate, the gypsum layer is formed on the surface of the concrete plate, and a lifting handle is further provided on the base plate away from the overturning end. Based on the working condition simulation of the concrete plate, the gypsum layer can reflect the most similar sagging change on site, thereby more accurately obtaining the test value.

[0018] Due to the implementation of the above technical solutions, the utility model has the following advantages compared with the prior art:

[0019] In the existing mechanical spraying plaster gypsum sag value test, the placed base surface cannot be guaranteed to be consistent, which leads to the angle of placement cannot be guaranteed to be 90℃, and further leads to the error rate of the measured data is large; meanwhile, the steel ruler used for testing has low precision, and when the concrete edge coincides with the steel ruler as the measurement endpoint during testing, it will lead to inconsistency in each person's measurement due to visual reasons, that is, the sag value cannot be accurately obtained, and other problems. The structure of the test piece forming device is designed as a whole, and the deficiencies and defects of the prior art are ingeniously solved. After the sag value testing device is used, the mold frame is placed on the concrete plate, the mixed plaster is filled in the mold frame, the frame is removed after being smoothed, and the vertical distance from the first measurement reference surface to the infrared distance measuring instrument is measured in the horizontal state. Then, the concrete plate is placed vertically on the base surface for 15 minutes, and then turned to the horizontal state again. Then, the vertical distance from the end surface of the sagging edge to the infrared distance measuring instrument is measured for the second time. Finally, the vertical distance measured for the first time is subtracted from the vertical distance measured for the second time to obtain the sag value. Therefore, on the one hand, the sag of 90° formed by the limiting assembly is combined with the data measurement of the two horizontal references to accurately obtain the sag value and reduce the error rate of the measured data. On the other hand, the data measured by the infrared distance measuring instrument is accurate, has high consistency, and has good repeatability. In addition, the structure is simple and convenient to implement. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further explained in detail below in combination with the drawings and specific embodiments.

[0021] Figure 1 It is a front view schematic diagram (horizontal state) of the sag value testing device for the mechanical spraying plaster gypsum of the embodiment;

[0022] Figure 2 It is a front view schematic diagram (vertical state) of the sag value testing device for the mechanical spraying plaster gypsum of the embodiment;

[0023] Figure 3 It is a right view schematic diagram of the embodiment; Figure 2

[0024] Among them: 1, base; 10, seat body; 11, seat foot; 12, brace bar groove;

[0025] 2, test platform; 20, base plate; 21, concrete plate; 22, lifting handle;

[0026] 3, limiting assembly; 30, pad module; 31, locking piece (lock pin); 32, inclined brace bar;

[0027] 4, infrared distance measuring instrument;​

[0028] 5. Gypsum layer

[0029] 6. Level

[0030] 7. Connecting seat; s, pivot DETAILED DESCRIPTION

[0031] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0033] In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0036] like Figures 1 to 3 As shown, the sag value testing device for mechanically sprayed plaster in this embodiment includes a self-leveling base 1, a test platform 2 that is mounted on the base 1 from one side and can be horizontally supported on the base 1, a limiting component 3 mounted on the base 1 and / or the test platform 2 to limit the test platform 2 to a vertical state, and an infrared rangefinder 4 mounted on the base 1 and near the flipped end of the test platform 2. The limiting component 3 can self-lock the test platform 2 and position it perpendicular to the base 1. Mechanically sprayed plaster forms a plaster layer 5 on the test platform, and the end face of the plaster layer 5 near the flipped end of the test platform 2 is the reference surface. D = D1 - D2, where D is the sag value, D1 is the vertical distance from the reference surface to the infrared rangefinder 4 in the first measurement, and D2 is the vertical distance from the end face of the sag side to the infrared rangefinder 4 in the second measurement.

[0037] The test platform 2 includes a base plate 20, a concrete slab 21 mounted on the base plate 20, a plaster layer 6 formed on the surface of the concrete slab 21, and a lifting handle 22 located at the end of the base plate 20 away from the flipping end. The test platform 2 simulates the working conditions of the concrete slab to ensure the plaster layer reflects the actual sag changes, thus obtaining more accurate test values. A connecting seat 7 is provided on the base plate 20, and the test platform 2 is rotatably mounted on the connecting seat 7 via a pivot s. This allows for easier switching between horizontal and vertical positions, facilitating practical operation.

[0038] The limiting assembly 3 comprises a pad module 30 fixed between the two connecting seats 7 and capable of matching the lower end of the vertical test platform 2, and a locking member 31 for relative locking of the connecting seat 7 and the test platform 2. The vertical test platform 2 is matched with the pad module 30 and is supported on the base 1 with the bottom surface. The contact area is increased after matching and abutting, thereby improving the stability of the vertical state and facilitating the relative locking of the locking member.

[0039] The base 1 is provided with a support rod slot 12, and the inclined support rod 32 is a telescopic rod and is disassembled in the support rod slot 12. The telescopic rod is hidden based on the support rod slot (at least when the test platform is in a horizontal state, the test platform can close the top of the support rod slot), and the support is facilitated. The telescopic rod is rotatably installed at one end of the base 1, and the other end forms an inclined support surface. In the vertical state of the test platform 2, the telescopic rod, the base 1, and the test platform 2 form a closed right triangle. Generally, the right triangle is an isosceles right triangle, and the principle of stable support of the triangle is used to improve the stability of the vertical test platform.

[0040] The infrared range finder 4 is transversely installed on the base 1 along the length direction of the reference surface, and D2 is the shortest vertical distance from the end surface of the lower edge of the second measurement to the infrared range finder 4. Based on the test of multiple positions, especially the acquisition of D2, the value of D is more accurately obtained.

[0041] The base 1 comprises a seat body 10 and a seat leg 11. The level 6 is installed on the seat body 10, and the height of the seat leg 11 is adjusted based on the level 6 to implement the leveling of the base 1. Based on the leveling, the formation of the gypsum layer is facilitated, and the equal distance control of D1 is facilitated, thereby obtaining the final detection result.

[0042] In conclusion, after the test device is used, the mold frame is placed on the concrete plate, the mixed plastering gypsum is filled in the mold frame, the frame is removed after being smoothed, the vertical distance from the first measurement datum surface to the infrared distance measuring instrument is measured in the horizontal state, then the concrete plate is vertically placed on the datum surface for 15 minutes, the vertical distance from the end surface of the second vertical side to the infrared distance measuring instrument is measured again in the horizontal state, and finally the vertical distance measured in the first time is subtracted by the vertical distance measured in the second time to obtain the vertical value.

[0043] Generally, the right triangle is an isosceles right triangle, and the stability of the test platform is further strengthened based on the principle that the triangle has stable support; the sixth aspect is based on the test of the multi-point position, especially the acquisition of D2, so that the D value can be more accurately obtained; the seventh aspect is based on the leveling, which is convenient for forming the gypsum layer, and also facilitates the equal distance control of D1, and further facilitates the acquisition of the final detection result; the eighth aspect is based on the working condition simulation of the concrete plate, so that the lime layer can reflect the vertical change closest to the field, thereby more accurately obtaining the test value.

[0044] The utility model has been described in detail above, the purpose is to let the person who knows this field technology can understand the content of the utility model and implement, and cannot limit the protection scope of the utility model with this, all equivalent changes or modifications according to the spirit of the utility model should be covered in the protection scope of the utility model.

Claims

1. A sag factor testing device for mechanical sprayed stucco, characterized by: It includes a self-leveling base, a test platform which is installed on the base by turning over one side edge and can be horizontally supported on the base, a limiting component which is installed on the base and / or the test platform to limit the test platform in a vertical state, and an infrared range finder which is installed on the base and close to the turning end of the test platform, wherein the limiting component can self-lock and oppositely position the test platform perpendicularly to the base; the mechanical spraying plaster forms a plaster layer on the test platform, and the end face of the plaster layer close to the turning end of the test platform is a reference face, wherein D=D1-D2, D is a sag value, D1 is the vertical distance from the reference face to the infrared range finder in the first measurement, and D2 is the vertical distance from the end face of the sagging edge to the infrared range finder in the second measurement.

2. The mechanical troweled gypsum plaster sag value testing apparatus of claim 1, wherein: A connecting seat is arranged on the base, and the test platform is pivotally installed on the connecting seat.

3. The mechanical troweled gypsum plaster sag value testing apparatus of claim 2, wherein: The limiting component includes a pad module which is fixed between the two connecting seats and can match the lower end of the vertically supported test platform, and a locking member which oppositely locks the connecting seat and the test platform, wherein the vertically supported test platform matches the pad module and is supported on the base with the bottom surface.

4. The mechanical troweled gypsum plaster sag factor testing apparatus of claim 3, wherein: The locking member is a locking pin, the connecting seat and the test platform are provided with pin holes which can be aligned, and the locking pin is inserted into the pin holes to oppositely lock the connecting seat and the test platform.

5. The mechanical troweled gypsum plaster sag value testing apparatus of claim 4, wherein: The locking member further includes a diagonal brace which is diagonally braced between the test platform and the base.

6. The mechanical troweled gypsum plaster sag factor testing apparatus of claim 5, wherein: A brace groove is arranged on the base, the diagonal brace is a telescopic rod, and the telescopic rod is disassembled in the brace groove.

7. The mechanical troweled gypsum plaster sag value testing apparatus of claim 6, wherein: The telescopic rod is pivotally installed on the base from one end and forms a diagonal bracing face from the other end, and in the vertical state of the test platform, the telescopic rod, the base and the test platform form a closed right-angled triangle.

8. The mechanical troweled gypsum plaster sag value testing apparatus of claim 1, wherein: The infrared range finder can be transversely installed on the base along the length direction of the reference face, and D2 is the shortest vertical distance from the end face of the sagging edge to the infrared range finder in the second measurement.

9. The mechanical troweled gypsum plaster sag value testing apparatus of claim 1, wherein: The base includes a base body and a base leg, a level is installed on the base body, and the height of the base leg is adjusted based on the level to implement the leveling of the base.

10. The mechanical troweled gypsum plaster sag value testing apparatus of claim 1, wherein: The test platform includes a base plate and a concrete plate which is installed on the base plate, the plaster layer is formed on the surface of the concrete plate, and a lifting handle is further arranged on the base plate away from the turning end.

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