Intelligent device and testing method for shrinkage performance of cement mortar

Abstract

The invention discloses an intelligent device for cement mortar shrinkage performance and a test method, the intelligent device comprises a shell, and further comprises a compression ring assembly used for preventing hollowing of a cement block, the compression ring assembly comprises a cylinder, push rings, a push rod and an eccentric wheel, the push rings are movably connected to the two ends of the cylinder, and the eccentric wheel is movably connected to the push rod; the two push rings are hinged to push rods through hinged supports on the push rings, the other ends of the two push rods are rotationally connected with the push rods through guide rods at the eccentric positions of eccentric wheels, the two eccentric wheels are rotationally connected to the two sides of a shell through short shafts at the axes of the eccentric wheels, the shell is connected with a limiting assembly, and the top end of the shell is connected with a clamping assembly. According to the invention, hollowing in the cement block can be effectively prevented when the cement block is manufactured.

Description

An intelligent device and testing method for the shrinkage performance of cement mortar Technical Field

[0001] This invention belongs to the field of mortar shrinkage testing technology, and particularly relates to an intelligent device and testing method for the shrinkage performance of cement mortar. Background Technology

[0002] Cement-based materials are in high demand and widely used, serving as an indispensable component in engineering projects such as buildings, roads, and bridges. However, due to their inherent characteristics, cement-based materials are prone to shrinkage and cracking, which inevitably affects their corrosion resistance, impermeability, and service life. When testing cement mortar, hollow areas often appear inside the cement blocks, leading to errors in subsequent tests. This paper proposes a device to prevent hollow areas from appearing inside cement blocks. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an intelligent device and testing method for measuring the shrinkage performance of cement mortar, thus solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an intelligent device and testing method for measuring the shrinkage performance of cement mortar, comprising a housing and a pressure ring assembly for preventing hollow areas in cement blocks; the pressure ring assembly comprises a cylinder, push rings, push rods, and eccentric wheels; push rings are movably connected to both ends of the cylinder; two push rings are hinged to push rods via hinge seats on them; the other ends of the two push rods are rotatably connected to push rods via guide rods at the eccentric points of the eccentric wheels; the two eccentric wheels are rotatably connected to both sides of the housing via short shafts at their centers; the housing is connected to a limiting assembly; and a clamping assembly is connected to the top of the housing.

[0005] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0006] A further technical solution: A main shaft is fixedly connected to the other side of the shaft of the two eccentric wheels. The main shaft is rotatably connected to the housing. A gear is fixedly connected to any one of the main shafts. The gear meshes with the output gear of the motor. The motor is fixedly connected to the housing.

[0007] A further technical solution: A worm is fixedly connected to the short shaft of the eccentric wheel, the worm meshes with the output gear of the worm wheel, a guide rod is fixedly connected to the center of the worm wheel shaft, the guide rod is rotatably connected to the housing, and the guide rod is connected to the negative pressure assembly.

[0008] A further technical solution: The negative pressure assembly includes a worm A, a worm wheel A, and a long shaft. The worm A is fixedly connected to the guide rod, and the worm A is meshed with the worm wheel A. A long shaft is fixedly connected to the axis of the worm wheel A, and the long shaft is rotatably connected to the housing.

[0009] A further technical solution: a plurality of worm gears B are fixedly connected to the long shaft, and each of the worm gears B is meshed with a worm wheel B. A fan blade shaft is fixedly connected to the center of the worm wheel B. The fan blade shafts are rotatably connected to the housing, and fan blades are fixedly connected to the fan blade shafts.

[0010] Further technical solution: The limiting component includes a base plate, a left-hand lead screw and a right-hand lead screw. The left-hand lead screw is rotatably connected in the groove of the base plate. The other end of the left-hand lead screw is fixedly connected to the right-hand lead screw, and the other end of the right-hand lead screw is rotatably connected to the base plate.

[0011] A further technical solution: The left-hand lead screw and the right-hand lead screw are respectively threaded with slide rods, the slide rods are slidably connected to the base plate through the slide rail in the groove of the base plate, the two slide rods are respectively fixedly connected with clamps, and the left-hand lead screw is fixedly connected with a lever.

[0012] Further technical solution: The clamping assembly includes a sleeve, clamping rods, a pull rod, and a slide cylinder. The sleeve is fixedly connected to the housing. Clamping rods are hinged to both sides of the sleeve. The clamping rods are hinged to the pull rods through a hinge seat in the middle. The other end of the pull rod is hinged to the slide cylinder. The slide cylinder is slidably connected to the sleeve through a slider on the sleeve.

[0013] A further technical solution: the clamping rod is hinged to the clamping plate via a hinge seat, the clamping plate is fixedly connected to the pointer, a lead screw is rotatably connected in the sleeve, the lead screw is threadedly connected to the slide cylinder, and a rocker arm is fixedly connected to the other end of the lead screw.

[0014] A further technical solution: A ruler plate is fixedly connected to the housing, and a bracket is fixedly connected to the housing.

[0015] Beneficial effects

[0016] This invention provides an intelligent device and testing method for the shrinkage performance of cement mortar, which has the following advantages compared with the prior art:

[0017] 1. Relevant technicians place the cylinder between two worm gears and manually rotate a lever, causing the lever to rotate the left-hand lead screw fixed to it. This, in turn, causes the left-hand lead screw to rotate the right-hand lead screw fixed to it. The sliding rods threaded onto the left and right lead screws then move linearly along the slide rails at their connection to the shell. This causes the two sliding rods to move the clamping plates fixed to them in opposite directions, thus clamping the cylinder. At this point, the technicians start the motor, causing the gear meshing with its output gear to rotate. This gear then rotates the main shaft fixed to its axis, causing it to rotate. The main shaft, in conjunction with its transmission connection, rotates, causing the two main shafts to rotate the eccentric wheels fixed to them. This causes the push rods, eccentrically connected to the eccentric wheels, to begin circular motion. The push rods then push the push rings hinged to them, causing the push rings to move linearly along the slide rails at their connection to the shell. The push rings then enter the cylinder along both sides. At this point, the relevant technicians... Personnel begin injecting mortar into the cylinder through the injection holes. After filling, the injection holes are blocked, and the motor is restarted. This causes the two push rings to work together to press the cement mortar inside the cylinder, preventing air pockets. Simultaneously, when the eccentric wheel rotates, it drives the worm gear fixedly connected to it to rotate synchronously. This causes the worm gear to drive the worm wheel connected to it to rotate, which in turn drives the guide rod fixedly connected to its shaft to rotate. This causes the guide rod to drive the worm A fixedly connected to it to rotate synchronously, which in turn drives the worm wheel A fixedly connected to it to rotate. This causes the worm wheel A fixedly connected to its shaft to rotate, which in turn drives the long shaft fixedly connected to it to rotate. This causes the long shaft to drive the worm B fixedly connected to it to rotate, which in turn drives the worm wheel B fixedly connected to it to rotate. This causes the worm wheel B fixedly connected to its shaft to rotate synchronously, which in turn drives the fan blade shaft fixedly connected to it to rotate. Simultaneously, the heating wire inside the casing begins to heat up, and under the negative pressure airflow generated by the rotating fan blades, the temperature inside the casing begins to rise.

[0018] 2. After the cement mortar inside the cylinder has solidified, the relevant technicians remove the cement block from the cylinder and place it on the support. At the same time, they manually turn the rocker arm, which drives the screw fixed to it to rotate. This causes the screw to drive the threaded slide cylinder connected to it to move linearly along the slide rail at its connection with the sleeve. The slide cylinder then drives the tie rods hinged on both sides, which in turn pull the clamping rods hinged to them. This causes the clamping rods to drive the clamping plates hinged to them to rotate synchronously, thus clamping the cement block placed on the support. After clamping, the relevant technicians record the numbers indicated by the pointer on the ruler to test its shrinkage performance. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 is a schematic diagram of the overall cross-sectional structure of the present invention.

[0021] Figure 3 is a schematic cross-sectional view of the lead screw structure of the present invention.

[0022] Figure 4 is an enlarged schematic diagram of the slide structure of the present invention.

[0023] Figure 5 is a side view cross-sectional diagram of the present invention.

[0024] Figure 6 is a cross-sectional schematic diagram of the eccentric wheel structure of the present invention.

[0025] Figure reference numerals: 101 housing, 2 pressure ring assembly, 3 limiting assembly, 4 clamping assembly, 5 negative pressure assembly, 201 cylinder, 202 push ring, 203 push rod, 204 eccentric wheel, 205 main shaft, 206 worm gear, 207 worm wheel, 208 guide rod, 209 gear, 2001, 2002 motor, 301 base plate, 302 left-hand lead screw, 303 right-hand lead screw, 304 lever, 305 slide rod, 306 clamping plate, 401 sleeve, 402 clamping rod, 403 pull rod, 404 slide cylinder, 405 clamping plate, 406 pointer, 407 lead screw, 408 rocker arm, 409 ruler plate, 501 worm gear A, 502 worm wheel A, 503 long shaft, 504 worm gear B, 505 worm wheel B, 506 fan blade shaft, 507 fan blade. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] Please refer to Figures 1-6, which illustrate an embodiment of the present invention: an intelligent device and testing method for the shrinkage performance of cement mortar, comprising a housing 101, and further comprising:

[0029] Pressure ring assembly 2 is used to prevent hollow areas from forming in the cement block:

[0030] The pressure ring assembly 2 includes a cylinder 201, a push ring 202, a push rod 203, and an eccentric wheel 204. The two ends of the cylinder 201 are movably connected to the push rings 202. The two push rings 202 are hinged to the push rods 203 through hinge seats. The other ends of the two push rods 203 are rotatably connected to the push rods 203 through the guide rods at the eccentric part of the eccentric wheel 204. The two eccentric wheels 204 are rotatably connected to both sides of the housing 101 through the short shaft at their center. The housing 101 is connected to the limiting assembly 3, and the top of the housing 101 is connected to the clamping assembly 4.

[0031] Specifically, a main shaft 205 is fixedly connected to the other side of the axis of the two eccentric wheels 204. The main shaft 205 is rotatably connected to the housing 101. A gear 209 is fixedly connected to either of the main shafts 205. The gear 209 meshes with the output gear of the motor 2001. The motor 2001 is fixedly connected to the housing 101.

[0032] Specifically, a worm gear 206 is fixedly connected to the short shaft of another eccentric wheel 204. The worm gear 206 is meshed with the output gear of the worm wheel 207. A guide rod 208 is fixedly connected to the center of the worm wheel 207. The guide rod 208 is rotatably connected to the housing 101 and is connected to the negative pressure component 5.

[0033] Specifically, the negative pressure component 5 includes a worm A501, a worm wheel A502, and a long shaft 503. The worm A501 is fixedly connected to the guide rod 208. The worm A501 is meshed with the worm wheel A502. The long shaft 503 is fixedly connected to the axis of the worm wheel A502. The long shaft 503 is rotatably connected to the housing 101.

[0034] Specifically, a plurality of worm gears B504 are fixedly connected to the long shaft 503, and the plurality of worm gears B504 are respectively meshed with worm wheels B505. A fan blade shaft 506 is fixedly connected to the axis of the worm wheel B505. The plurality of fan blade shafts 506 are rotatably connected to the housing 101, and fan blades 507 are fixedly connected to the fan blade shafts 506.

[0035] Specifically, the limiting component 3 includes a base plate 301, a left-hand lead screw 302, and a right-hand lead screw 303. The left-hand lead screw 302 is rotatably connected in the groove of the base plate 301. The other end of the left-hand lead screw 302 is fixedly connected to the right-hand lead screw 303, and the other end of the right-hand lead screw 303 is rotatably connected to the base plate 301.

[0036] Specifically, the left-hand lead screw 302 and the right-hand lead screw 303 are respectively threaded with slide rods 305. The slide rods 305 are slidably connected to the base plate 301 through the slide rail in the groove of the base plate 301. The two slide rods 305 are respectively fixedly connected with clamps 306. The left-hand lead screw 302 is fixedly connected with a lever 304.

[0037] In this embodiment of the invention, a technician places the cylinder 201 between two worm gears 206 and manually rotates the lever 304, causing the lever 304 to rotate the left-hand lead screw 302 fixedly connected to it. The left-hand lead screw 302 then rotates the right-hand lead screw 303 fixedly connected to it, causing the sliding rods 305 threadedly connected to the left-hand and right-hand lead screws 302 and 303 to move linearly along the slide rails at their connection to the housing 101. This causes the two sliding rods 305 to move the clamping plates 306 fixedly connected to them in opposite linear directions, thus allowing the two clamping plates 306 to cooperate and clamp the cylinder 201. At this point, the technician starts the motor. 2001, the motor 2001 drives the gear 209, which meshes with its output gear, to rotate. This gear 209 then drives the main shaft 205, which is fixedly connected to its shaft, to rotate. The main shaft 205, in conjunction with its transmission connection 2002, begins to rotate. This causes the two main shafts 205 to drive the eccentric wheels 204, which are fixedly connected to them, to rotate. This causes the push rod 203, eccentrically connected to the eccentric wheel 204, to begin circular motion. The push rod 203 then pushes the push ring 202, which is hinged to it, causing the push ring 202 to move linearly along the slide rail at its connection with the housing 101. This allows the push ring 202 to enter the cylinder 201 along both sides. In step 1, at this point, the relevant technicians begin injecting mortar into the cylinder 201 through the injection holes. After filling, the injection holes on the cylinder 201 are blocked, and the motor 2001 is restarted. This causes the two push rings 202 to cooperate and press the cement mortar inside the cylinder 201, thus preventing the cement mortar inside the cylinder 201 from becoming hollow. At the same time, when the eccentric wheel 204 rotates, it drives the worm gear 206 fixedly connected to it to rotate synchronously. This causes the worm gear 206 to drive the worm wheel 207 meshing with it to start rotating. This causes the worm wheel 207 to drive the guide rod 208 fixedly connected to its shaft to start rotating. This causes the guide rod 208 to drive the worm gear A501 fixedly connected to it to rotate synchronously. This causes the worm gear A501 to drive the worm wheel A502, which meshes with it, to start rotating. The worm wheel A502 then drives the long shaft 503, which is fixed at its center, to start rotating. The long shaft 503 then drives the worm gear B504, which is fixedly connected to it, to start rotating. The worm gear B504 then drives the worm wheel B505, which meshes with it, to start rotating. The worm wheel B505 then drives the fan blade shaft 506, which is fixedly connected to its center, to rotate synchronously. The fan blade shaft 506 then drives the fan blade 507, which is fixedly connected to it, to start rotating. At the same time, the heating wire inside the housing 101 starts to heat up. Under the action of the negative pressure airflow generated by the rotation of the fan blade 507, the temperature inside the housing 101 starts to rise.

[0038] Specifically, the clamping assembly 4 includes a sleeve 401, a clamping rod 402, a pull rod 403, and a sliding cylinder 404. The sleeve 401 is fixedly connected to the housing 101. The clamping rod 402 is hinged to both sides of the sleeve 401. The clamping rod 402 is hinged to the pull rod 403 through a hinge seat in its middle. The other end of the pull rod 403 is hinged to the sliding cylinder 404. The sliding cylinder 404 is slidably connected to the sleeve 401 through a slider on the sleeve 401.

[0039] Specifically, the clamping rod 402 is hinged to the clamping plate 405 via a hinge seat, the clamping plate 405 is fixedly connected to the pointer 406, a lead screw 407 is rotatably connected in the sleeve 401, the lead screw 407 is threadedly connected to the slide cylinder 404 in the slide cylinder 404, and a rocker arm 408 is fixedly connected to the other end of the lead screw 407.

[0040] Specifically, a ruler plate 409 is fixedly connected to the housing 101, and a bracket 4001 is fixedly connected to the housing 101.

[0041] In this embodiment of the invention, after the cement mortar inside the cylinder 201 solidifies, the relevant technicians remove the cement block from the cylinder 201 and place it on the support 4001. At the same time, they manually rotate the rocker arm 408, causing the rocker arm 408 to drive the screw rod 407 fixedly connected to it to start rotating. This causes the screw rod 407 to drive the slide cylinder 404 threadedly connected to it to start moving linearly along the slide rail at its connection with the sleeve 401. The slide cylinder 404 then drives the pull rods 403 hinged on both sides, causing the pull rods 403 to pull the clamping rods 402 hinged to them. This causes the clamping rods 402 to drive the clamping plates 405 hinged to them to rotate synchronously, thus causing the clamping plates 405 to clamp the cement block placed on the support 4001. After clamping, the relevant technicians record the number indicated by the pointer 406 on the ruler 409 to test its shrinkage performance.

[0042] 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.

[0043] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent device and testing method for measuring the shrinkage performance of cement mortar, comprising a housing (101), characterized in that, Also includes: The pressure ring assembly (2) is used to prevent the cement block from becoming hollow: The pressure ring assembly (2) includes a cylinder (201), a push ring (202), a push rod (203), and an eccentric wheel (204). The two ends of the cylinder (201) are movably connected to the push rings (202). The two push rings (202) are hinged to the push rods (203) through the hinge seats on them. The other ends of the two push rods (203) are rotatably connected to the push rods (203) through the guide rods at the eccentric part of the eccentric wheel (204). The two eccentric wheels (204) are rotatably connected to both sides of the housing (101) through the short shaft at the center of their axis. The housing (101) is connected to the limiting assembly (3). The top of the housing (101) is connected to the clamping assembly (4).

2. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 1, characterized in that, A main shaft (205) is fixedly connected to the other side of the two eccentric wheels (204). The main shaft (205) is rotatably connected to the housing (101). A gear (209) is fixedly connected to either of the main shafts (205). The gear (209) meshes with the output gear of the motor (2001). The motor (2001) is fixedly connected to the housing (101).

3. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 1, characterized in that, Another eccentric wheel (204) is fixedly connected to a short shaft with a worm (206). The worm (206) meshes with the output gear of the worm wheel (207). A guide rod (208) is fixedly connected to the center of the worm wheel (207). The guide rod (208) is rotatably connected to the housing (101). The guide rod (208) is connected to the negative pressure assembly (5).

4. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 3, characterized in that, The negative pressure assembly (5) includes a worm A (501), a worm wheel A (502), and a long shaft (503). The worm A (501) is fixedly connected to the guide rod (208). The worm A (501) is meshed with the worm wheel A (502). The long shaft (503) is fixedly connected to the axis of the worm wheel A (502). The long shaft (503) is rotatably connected to the housing (101).

5. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 4, characterized in that, Multiple worm gears B (504) are fixedly connected to the long shaft (503), and each of the multiple worm gears B (504) is meshed with a worm wheel B (505). A fan blade shaft (506) is fixedly connected to the center of the worm wheel B (505), and the multiple fan blade shafts (506) are rotatably connected to the housing (101). Fan blades (507) are fixedly connected to the fan blade shafts (506).

6. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 1, characterized in that, The limiting component (3) includes a base plate (301), a left-hand lead screw (302), and a right-hand lead screw (303). The left-hand lead screw (302) is rotatably connected in the groove of the base plate (301). The other end of the left-hand lead screw (302) is fixedly connected to the right-hand lead screw (303), and the other end of the right-hand lead screw (303) is rotatably connected to the base plate (301).

7. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 6, characterized in that, The left-hand lead screw (302) and the right-hand lead screw (303) are respectively threaded with slide rods (305). The slide rods (305) are slidably connected to the base plate (301) through the slide rail in the groove of the base plate (301). The two slide rods (305) are respectively fixedly connected with clamps (306). The left-hand lead screw (302) is fixedly connected with a lever (304).

8. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 1, characterized in that, The clamping assembly (4) includes a sleeve (401), a clamping rod (402), a pull rod (403), and a slide cylinder (404). The sleeve (401) is fixedly connected to the housing (101). The clamping rod (402) is hinged to both sides of the sleeve (401). The clamping rod (402) is hinged to the pull rod (403) through a hinge seat in its middle. The other end of the pull rod (403) is hinged to the slide cylinder (404). The slide cylinder (404) is slidably connected to the sleeve (401) through a slider on the sleeve (401).

9. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 8, characterized in that, The clamping rod (402) is hinged to the clamping plate (405) via a hinge seat. The clamping plate (405) is fixedly connected to the pointer (406). A lead screw (407) is rotatably connected in the sleeve (401). The lead screw (407) is threadedly connected to the slide cylinder (404) in the slide cylinder (404). A rocker arm (408) is fixedly connected to the other end of the lead screw (407).

10. The intelligent device and testing method for the shrinkage performance of cement mortar according to claim 1, characterized in that, A ruler plate (409) is fixedly connected to the housing (101), and a bracket (4001) is fixedly connected to the housing (101).

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