A device for detecting the viscosity of a mortar binder
By using a tensioning assembly consisting of a limiting plate, an electric push rod, and a slider, combined with the limiting assembly and a magnetic adsorption structure, the problems of uneven force on the test block and inconvenient disassembly and assembly in mortar adhesive viscosity testing equipment are solved, thus achieving efficient viscosity testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 合肥国超新材料股份有限公司
- Filing Date
- 2025-06-25
- Publication Date
- 2026-08-04
AI Technical Summary
In existing mortar adhesive adhesion testing equipment, the test blocks are subjected to uneven stress and the tensioning components are inconvenient to assemble and disassemble, which affects the testing efficiency.
A tensioning assembly consisting of a limiting plate, an electric push rod, a slider, and a spring is used, combined with the limiting assembly and a magnetic adsorption structure, to achieve uniform force distribution and rapid assembly/disassembly of the test block.
It achieves uniform stress on the test block, and the testing process is fast and efficient, simplifying the disassembly and assembly process of the equipment.
Smart Images

Figure CN224594444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mortar adhesive viscosity testing technology, specifically to a mortar adhesive viscosity testing device. Background Technology
[0002] When used for laying bricks and blocks (such as red bricks, concrete blocks, aerated concrete blocks, etc.), it fills the gaps between bricks and provides bonding force to form an integral structure, ensuring the stability and load-bearing capacity of the wall. It needs to have a certain water retention and construction fluidity to ensure that the mortar can be evenly spread and closely adhered to the bricks during construction.
[0003] A relevant reference is Chinese utility model patent CN220323090U, which discloses a device for testing the bonding strength of mortar in building engineering. The device includes a base plate, a U-shaped bracket fixedly mounted on the top of the base plate, a mortar test block sleeve with one open side on the top of the base plate, a building material plate slidably mounted inside the mortar test block sleeve, a mortar test block on top of the building material plate, a connecting plate bonded to the top of the mortar test block, a pull rod fixedly mounted on the top of the connecting plate, a tensile testing component above the pull rod, a sleeve adapted to the pull rod at the bottom of the tensile testing component, a crossbar slidably mounted inside the U-shaped bracket, and two electric cylinders fixedly mounted on the top of the U-shaped bracket. This simple installation and connection structure facilitates rapid installation and connection of the mortar test block, avoiding the slippage problem that easily occurs with clamping and fixing structures, thus effectively ensuring the accuracy of mortar bonding strength testing.
[0004] The aforementioned bonding strength testing equipment restricts the position of the test block through a slot. The test block and the tensioning component are bonded together with mortar adhesive. In order for the tensioning component to be located in the center of the slot, a notch for fitting the tensioning component needs to be set on the upper surface of the slot. This method results in one side of the test block not being restricted by the slot during the application of upward pulling force to the tensioning component, leading to uneven force distribution. At the same time, the operation of connecting the tensioning component and the electric cylinder is cumbersome and cannot be quickly disassembled and assembled, affecting the testing efficiency. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a mortar adhesive viscosity testing device, which solves the problems of uneven stress and the inability to quickly disassemble and assemble tension components.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a mortar adhesive viscosity testing device includes a frame, and a testing mechanism is disposed above the frame.
[0007] The traction assembly includes a limiting plate fixedly installed inside the frame. The traction assembly also includes an electric push rod fixedly installed at the top of the frame. A tension sensor is fixedly installed at the bottom end of the electric push rod. A limiting tube is fixedly installed at the bottom end of the tension sensor. A slider is movably installed inside the limiting tube. A spring is inserted through the outside of the slider.
[0008] The limiting component, located at the bottom of the frame, is used to limit the position of the test block.
[0009] Preferably, the center of the limiting plate is provided with a rectangular opening structure, the top of the limiting tube is a closed structure, the slider is installed in the inside of the limiting tube in an "X" shape with the center of the limiting tube as the reference, and the upper and lower sides of the front end of the slider are provided with inclined structures.
[0010] Preferably, the rear end of the slider is a cylindrical structure with an annular protrusion at the end, the slider and the limiting tube form a sliding connection, and the spring is inserted and installed on the outside of the cylindrical structure of the slider.
[0011] Preferably, the limiting component includes a connecting plate disposed below the limiting plate, an adhesive plate is fitted into the center of the connecting plate, a ball head is fixedly installed at the top of the adhesive plate, a guide ring is inserted into the outer side of the ball head, a housing is movably installed below the connecting plate, and a magnet is fitted into the top of the housing.
[0012] Preferably, the connecting plate and the bonding plate form a sliding connection, and the center of the bonding plate is provided with a cylindrical protrusion structure. The ball head is installed on the top of the cylindrical protrusion of the bonding plate through a threaded structure.
[0013] Preferably, the top of the ball head is a half-spherical structure, and a groove is provided below the top of the ball head to fit into the guide ring. The upper and lower sides of the guide ring are provided with inclined structures, and the outer shell is magnetically attached to the bottom of the connecting plate.
[0014] Beneficial effects
[0015] This invention provides a device for testing the viscosity of mortar adhesives. Compared with the prior art, it has the following advantages:
[0016] (1) The viscous testing device for the mortar adhesive, through the setting of the ball head, when the slider moves downward and approaches the ball head, the spherical structure at the top of the ball head contacts the inclined surface at the front end of the slider and squeezes the slider. Because the slider has a sloping front end, under the pressure of the ball head, the slider slides outward along the limiting tube. The spring is compressed, and the slider retracts to create space, allowing the ball head to continue entering the area enclosed by the slider. At this time, the electric actuator can drive the ball head and the bonding plate to move upward, so that the sample drives the top of the connecting plate to contact the bottom surface of the limiting plate for adhesion testing. After the test is completed, the electric actuator extends. After the bottom of the outer shell contacts the bottom plate of the frame, the slider will continue to move downward with the limiting tube. Guided by the sloping surface above the guide ring, it moves outward from the limiting tube. After the guide ring is above the slider, the electric actuator retracts and will drive the guide ring upward through the slider until the top of the guide ring is engaged with the recessed structure below the ball head. At this time, the electric actuator continues to retract, and the slider will move outward from the limiting tube under the sloping surface structure below the guide ring, so that the slider can move out below the ball head, thereby canceling the connection between the bonding plate and the limiting tube, so as to quickly disassemble and assemble the bonding plate.
[0017] (2) The adhesiveness testing equipment for this mortar adhesive has a connecting plate with an opening structure in the center that fits into the bonding plate. When the sample is bonded to the bottom of the bonding plate with the mortar adhesive, the rectangular structure at the bottom of the bonding plate fits into the connecting plate, and a part of the top surface of the sample contacts the connecting plate. Then, the outer shell is attracted to the bottom of the connecting plate by a magnet to wrap the sample. During the testing process, the top surface of the connecting plate contacts the bottom surface of the limiting plate, and the outer edge of the sample will be restricted by the connecting plate. The bonding plate will be subjected to the pulling force of the electric push rod until the pulling force exceeds the bearing limit of the mortar adhesive. This method can quickly restrict the position of the sample while making the sample more uniformly stressed. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the electric actuator mounting structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the outer shell mounting structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the connection structure between the guide ring and the ball head of this utility model;
[0022] In the diagram: 1. Frame; 2. Detection mechanism; 21. Pulling assembly; 211. Limiting plate; 212. Electric push rod; 213. Tension sensor; 214. Limiting tube; 215. Slider; 216. Spring; 22. Limiting assembly; 221. Connecting plate; 222. Adhesive plate; 223. Ball head; 224. Guide ring; 225. Outer shell; 226. Magnet. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4 This utility model provides a technical solution: a mortar adhesive viscosity testing device includes a frame 1, and a testing mechanism 2 is arranged above the frame 1.
[0025] The traction assembly 21 includes a limiting plate 211 fixedly installed inside the frame 1. The traction assembly 21 also includes an electric push rod 212 fixedly installed at the top of the frame 1. A tension sensor 213 is fixedly installed at the bottom of the electric push rod 212. A limiting tube 214 is fixedly installed at the bottom of the tension sensor 213. A slider 215 is movably installed inside the limiting tube 214. A spring 216 is inserted and installed on the outside of the slider 215. A rectangular opening structure is provided at the center of the limiting plate 211. The top of the limiting tube 214 is a closed structure. The slider 215 is installed in an "X" shape inside the limiting tube 214 with the center of the limiting tube 214 as the reference. The upper and lower sides of the front end of the slider 215 are provided with inclined structures. The rear end of the slider 215 is a cylindrical structure with an annular protrusion at the end. The slider 215 and the limiting tube 214 form a sliding connection. The spring 216 is inserted and installed on the outside of the cylindrical structure of the slider 215.
[0026] Specifically, the frame 1 can limit the position of the limiting plate 211 relative to the electric push rod 212. The relative position between the limiting component 22 and the limiting plate 211 is adjusted by the extension and retraction of the electric push rod 212. The tension sensor 213 can detect the tension applied by the electric push rod 212 to the limiting component 22. The position and direction of movement of the slider 215 are limited by the limiting tube 214. When the slider 215 is below the ball head 223, it can drive the adhesive plate 222 to move through the ball head 223. The spring 216 can limit the position of the slider 215.
[0027] A limiting component 22, located at the bottom of frame 1, is used to limit the position of the test block. The limiting component 22 includes a connecting plate 221 located below the limiting plate 211. An adhesive plate 222 is fitted into the center of the connecting plate 221. A ball head 223 is fixedly installed at the top of the adhesive plate 222. A guide ring 224 is inserted into the outer side of the ball head 223. A housing 225 is movably installed below the connecting plate 221. A magnet 226 is fitted into the top of the housing 225. The connecting plate 221 and the adhesive plate 222 form a sliding connection. A cylindrical protrusion structure is provided at the center of the adhesive plate 222. The ball head 223 is installed at the top of the cylindrical protrusion of the adhesive plate 222 through a threaded structure. The top of the ball head 223 is a half-spherical structure, and a groove is provided below the top of the ball head 223 to fit into the guide ring 224. The upper and lower sides of the guide ring 224 are provided with inclined structures. The housing 225 is attracted to the bottom of the connecting plate 221 by the magnet 226.
[0028] Specifically, the connecting plate 221 can restrict the position of the bonding plate 222, and when the top end contacts the limiting plate 211, it restricts the bonding plate 222 from being below the sample position limiting plate 211. The bonding plate 222 is connected to the sample by mortar adhesive, thereby restricting the sample below the connecting plate 221. The guide ring 224 can slide outside the ball head 223, so that the slider 215 can drive the guide ring 224 to move upward. When the top end of the guide ring 224 is fitted below the ball head 223, the guide ring 224 can guide the slider 215 to move outward, thereby preventing the slider 215 from getting stuck below the ball head 223. The outer shell 225 can cover the sample to prevent the sample from breaking into fragments under force during the test.
[0029] Specifically, the electric actuator 212 is model AAG065-150, and the tension sensor 213 is model SQ-5312. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0030] During operation, when the slider 215 moves downwards towards the ball head 223, the spherical structure at the top of the ball head 223 contacts the inclined surface at the front end of the slider 215, compressing the slider 215. Because the front end of the slider 215 has an inclined surface, under the compression of the ball head 223, the slider 215 slides outwards along the limiting tube 214, the spring 216 is compressed, and the slider 215 contracts to create space, allowing the ball head 223 to continue entering the area enclosed by the slider 215. At this time, the electric actuator 212 can drive the ball head 223 and the adhesive plate 222 upwards, causing the sample to bring the top of the connecting plate 221 into contact with the bottom surface of the limiting plate 211 for adhesion testing. After the test is completed, the electric actuator 212 extends outwards... After the bottom end of shell 225 contacts the base plate of frame 1, slider 215 will continue to move downward with limit tube 214. Guided by the inclined surface above guide ring 224, it will move outward of limit tube 214. After guide ring 224 is above slider 215, electric actuator 212 will retract, which will drive guide ring 224 upward through slider 215 until the top of guide ring 224 is engaged with the recessed structure below ball head 223. At this time, electric actuator 212 continues to retract, and slider 215 will move upward with guide ring 214. Guided by the inclined structure below ring 224, the slider 215 moves outward towards the limiting tube 214, allowing it to move out below ball head 223, thereby canceling the connection between adhesive plate 222 and limiting tube 214 for quick disassembly and assembly of adhesive plate 222. The connecting plate 221 has an opening structure at its center that engages with adhesive plate 222. When the sample is bonded to the underside of adhesive plate 222 using mortar adhesive, the rectangular structure at the bottom of adhesive plate 222 engages with connecting plate 221, thus protecting the top surface of the sample. Partial areas are in contact with the connecting plate 221, and the outer shell 225 is then attracted to the underside of the connecting plate 221 by the magnet 226, thus enclosing the sample. During the testing process, the top surface of the connecting plate 221 contacts the bottom surface of the limiting plate 211, and the outer edge of the sample will be restricted by the connecting plate 221. The adhesive plate 222 will be pulled by the electric push rod 212 until the pulling force exceeds the bearing limit of the mortar adhesive. This method can quickly restrict the position of the sample while making the sample more uniformly stressed.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mortar adhesive viscosity testing device, comprising a frame (1), characterized in that, A detection mechanism (2) is provided above the frame (1): The traction assembly (21) includes a limiting plate (211) fixedly installed inside the frame (1). The traction assembly (21) also includes an electric push rod (212) fixedly installed at the top of the frame (1). A tension sensor (213) is fixedly installed at the bottom end of the electric push rod (212). A limiting tube (214) is fixedly installed at the bottom end of the tension sensor (213). A slider (215) is movably installed inside the limiting tube (214). A spring (216) is inserted through the outside of the slider (215). A limiting component (22) is located at the bottom of the frame (1) to limit the position of the test block.
2. The mortar adhesive viscosity testing device according to claim 1, characterized in that: The center of the limiting plate (211) is provided with a rectangular opening structure, the top of the limiting tube (214) is a closed structure, the slider (215) is installed in an "X" shape inside the limiting tube (214) with the center of the limiting tube (214) as the reference, and the upper and lower sides of the front end of the slider (215) are provided with inclined structures.
3. The mortar adhesive viscosity testing device according to claim 1, characterized in that: The rear end of the slider (215) is a cylindrical structure and an annular protrusion is provided at the end. The slider (215) and the limiting tube (214) form a sliding connection. The spring (216) is inserted and installed on the outside of the cylindrical structure of the slider (215).
4. The mortar adhesive viscosity testing device according to claim 1, characterized in that: The limiting component (22) includes a connecting plate (221) disposed below the limiting plate (211). An adhesive plate (222) is fitted into the center of the connecting plate (221). A ball head (223) is fixedly installed at the top of the adhesive plate (222). A guide ring (224) is inserted into the outer side of the ball head (223). A housing (225) is movably installed below the connecting plate (221). A magnet (226) is fitted into the top of the housing (225).
5. The mortar adhesive viscosity testing device according to claim 4, characterized in that: The connecting plate (221) and the adhesive plate (222) form a sliding connection. The center of the adhesive plate (222) is provided with a columnar protrusion structure. The ball head (223) is installed on the top of the columnar protrusion of the adhesive plate (222) through a threaded structure.
6. The mortar adhesive viscosity testing device according to claim 4, characterized in that: The top of the ball head (223) is a half-spherical structure, and a groove is provided below the top of the ball head (223) to fit into the guide ring (224). The upper and lower sides of the guide ring (224) are provided with inclined structures. The outer shell (225) is attracted to the bottom of the connecting plate (221) by a magnet (226).