Cement bending resistance detection device
By designing a cement flexural detection device including heating lamp tubes, infrared temperature detectors and hydraulic push rods, the problem that the prior art cannot detect the flexural resistance of cement surfaces under high temperatures is solved, and the cement exposure environment is realized Effective simulation of under-expanding stress and accurate evaluation of flexural resistance.
Patent Information
- Application Number
- CN202420750381.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The existing cement flexural detection device cannot detect the flexural resistance of the cement surface under high temperatures, and cannot simulate the expansion stress state of cement under external sun exposure.
A cement flexural detection device is designed, including a detection table, a fixing frame, a hydraulic push rod, an extrusion block, a positioning plate and an infrared temperature detector. The surface of the cement block is heated by heating the lamp tube, and the temperature is detected with an infrared temperature detector to simulate the cement exposure environment; the hydraulic push rod drives the extrusion block to lower the surface of the extrusion block to detect its flexural effect.
It can effectively simulate the expansion and stress state of cement in a high temperature environment, accurately evaluate the flexural resistance of cement surface at high temperatures, and fill the gap in the existing technology.
Smart Images
Figure CN222461225U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cement detection, in particular to a cement anti-bending detection device. Background Art
[0002] During the construction of cement, the flexural strength of the produced cement is usually tested. When testing the flexural strength of cement, cement test blocks are made in advance and tested by cement flexural strength testing device.
[0003] When cement or concrete is laid outdoors, it will be exposed to sunlight, causing the surface temperature of the cement to rise, while the temperature of the bottom of the cement changes little, causing the top exposed surface of the cement to expand, while the bottom of the cement does not expand, thus generating stress in the cement and affecting the flexural resistance of the cement;
[0004] However, the existing cement flexural resistance detection device does not detect the flexural resistance of the cement surface under high temperature conditions, so we urgently propose a cement flexural resistance detection device. Utility Model Content
[0005] The purpose of the utility model is to provide a cement anti-bending detection device to solve the above-mentioned shortcomings in the technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A cement bending resistance testing device comprises a testing platform, a fixing frame, a hydraulic push rod, an extrusion block, a positioning plate and an infrared temperature detector. A fixing frame is fixedly provided at the top center position of the testing platform, a fixing opening is opened at the top center position of the fixing frame, a hydraulic push rod vertically downward is fixedly provided on the inner wall of the fixing opening, an extrusion block is fixedly provided on the output shaft of the hydraulic push rod via a coupling, two lampshades are fixedly provided on the bottom outer wall of the fixing frame via a bracket, the two lampshades are respectively located on both sides of the extrusion block, heating lamp tubes are installed on the inner walls at both ends of the two lampshades, positioning plates are fixedly provided on both sides of the tops of the two lampshades, and an infrared temperature detector vertically downward is fixedly provided through an opening at the center position of the two positioning plates.
[0008] Preferably, sliding plates are respectively provided on both sides of the top of the detection platform, and supporting plates are provided on the tops of the two sliding plates.
[0009] Preferably, two slide grooves are formed on the top outer wall of the detection platform, and sliders are fixedly provided on the bottom outer walls of the two sliding plates, and the outer walls of the two sliders are slidably connected to the inner walls of the slide grooves.
[0010] Preferably, two first positioning holes are opened on the top outer walls of the two sliding plates, and two second positioning holes are opened on the bottom outer walls of the two supporting plates. The inner walls of the two first positioning holes are fixed with vertically upward compression springs, and one end of the top of the two compression springs is fixedly connected to the top inner wall of the second positioning hole. The cement block is placed on the top of the two supporting plates, and the compression of the compression springs can slow down the speed of squeezing the cement block. Limit blocks are fixed at both ends of the top of the two support plates.
[0011] Preferably, the top of the detection platform is engraved with scale line grooves distributed at equal distances, and the scale line grooves are located on one side of the slide groove, so that the distance between the two sliding plates can be easily controlled through the scale line grooves.
[0012] Preferably, a lamp tube knob switch is installed on the top outer wall of the test bench, and the temperature of the heating lamp tube can be easily controlled by the lamp tube knob switch. Two push rod control switch buttons are installed on the top outer wall of the test bench, and the hydraulic push rod output shaft can be easily controlled by the push rod control switch buttons.
[0013] Preferably, the four corners of the bottom of the testing platform are fixedly provided with supporting legs and feet which are distributed at equal distances, so that the utility model can be placed at a designated position conveniently through the supporting legs and feet.
[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0015] By using the heating lamp to generate heat radiation, the surface of the cement block is heated and baked, and the temperature of the cement block surface is detected with the infrared temperature detector, which can simulate the environment of the cement block exposed to the outside world and understand the state of stress generated inside the concrete surface expansion. By using the output end of the hydraulic push rod to drive the extrusion block to descend and extrude the surface of the cement block, the anti-bending effect of the cement block surface in a high temperature environment can be understood. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a three-dimensional structural schematic diagram of a cement anti-bending detection device of the utility model;
[0018] Figure 2 This is a schematic diagram of the lampshade structure of a cement anti-bending detection device of the utility model;
[0019] Figure 3 The utility model is a schematic diagram of the sliding plate structure of a cement anti-bending detection device.
[0020] Description of reference numerals:
[0021] 1 testing table, 2 fixing frame, 3 fixing port, 4 hydraulic push rod, 5 extrusion block, 6 lampshade, 7 heating lamp tube, 8 positioning plate, 9 infrared temperature detector, 10 sliding plate, 11 slide groove, 12 slider, 13 support plate, 14 first positioning hole, 15 second positioning hole, 16 compression spring, 17 limit block, 18 lamp tube knob switch, 19 push rod control switch button, 20 scale line groove, 21 support leg. DETAILED DESCRIPTION
[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0023] Embodiment 1
[0024] Refer to the instruction manual Figure 1-3 A cement bending resistance testing device comprises a testing platform 1, a fixing frame 2 is fixedly provided at the top center position of the testing platform 1, a fixing opening 3 is opened at the top center position of the fixing frame 2, a hydraulic push rod 4 is fixedly provided vertically downward on the inner wall of the fixing opening 3, an extrusion block 5 is fixedly provided on the output shaft of the hydraulic push rod 4 through a coupling, two lampshades 6 are fixedly provided on the bottom outer wall of the fixing frame 2 through a bracket, the two lampshades 6 are respectively located on both sides of the extrusion block 5, heating lamp tubes 7 are installed on the inner walls at both ends of the two lampshades 6, positioning plates 8 are fixedly provided on both sides of the top of the two lampshades 6, and an infrared temperature detector 9 is fixedly provided vertically downward through an opening at the center position of the two positioning plates 8.
[0025] Embodiment 2
[0026] Based on the first embodiment, sliding plates 10 are respectively provided on both sides of the top of the testing platform 1, and support plates 13 are provided on the tops of the two sliding plates 10. Two slide grooves 11 are opened on the top outer wall of the testing platform 1, and sliders 12 are fixedly provided on the bottom outer walls of the two sliding plates 10. The outer walls of the two sliders 12 are slidably connected to the inner walls of the slide grooves 11. Two first positioning holes 14 are opened on the top outer walls of the two sliding plates 10, and two second positioning holes 15 are opened on the bottom outer walls of the two supporting plates 13. Limit blocks 17 are fixedly provided at both ends of the tops of the two supporting plates 13, and vertically upward compression springs 16 are fixedly provided on the inner walls of the two first positioning holes 14. One end of the top of the two compression springs 16 is fixedly connected to the top inner wall of the second positioning hole 15. The cement block is placed on the top of the two support plates 13, and the compression of the compression springs 16 can slow down the speed of squeezing the cement block.
[0027] Embodiment 3
[0028] Based on the first embodiment, the top of the testing platform 1 is engraved with equidistantly distributed scale line grooves 20, and the scale line grooves 20 are located on one side of the slide groove 11. The scale line grooves 20 are used to control the distance between the two sliding plates 10. A lamp tube knob switch 18 is installed on the top outer wall of the testing platform 1. The lamp tube knob switch 18 is used to control the temperature of the heating lamp 7. Two push rod control switch buttons 19 are installed on the top outer wall of the testing platform 1. The push rod control switch buttons 19 are used to control the lifting and lowering of the output shaft of the hydraulic push rod 4. Support legs 21 with equidistant distribution are fixed at the four corners of the bottom of the testing platform 1. The support legs 21 are used to facilitate the placement of the utility model at a designated position.
[0029] Working principle of this utility model:
[0030] Refer to the instruction manual Figure 1-3 When the concrete test block is subjected to a flexural test, the device of the utility model is placed on a horizontal workbench by means of the supporting legs 21 provided at the bottom of the testing platform 1 .
[0031] Then, the slider 12 provided at the bottom of the sliding plate 10 slides on the inner wall of the sliding groove 11 to adjust the distance between the two sliding plates 10, thereby controlling the distance between the two supporting plates 13 and the overlapping position of the cement block.
[0032] Then, the cement block is placed on the top of the two support plates 13. At this time, the heat radiation of the heating lamp 7 is controlled by the lamp knob switch 18, and the surface of the cement block overlapping the top of the support plate 13 is baked by the heating lamp 7 arranged in the lampshade 6.
[0033] During baking, the temperature of the cement block surface is detected by the infrared temperature detector 9, which can simulate the environment of the cement block exposed to the sun, understand the state of stress generated inside the concrete surface expansion, and drive the extrusion block 5 to descend and extrude the surface of the cement block through the output end of the hydraulic push rod 4, so as to understand the anti-bending effect of the cement block surface in a high temperature environment.
[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A cement bending resistance detection device, characterized in that: The invention comprises a testing platform (1), a fixing frame (2), a hydraulic push rod (4), an extrusion block (5), a positioning plate (8) and an infrared temperature detector (9). The fixing frame (2) is fixedly provided at the top center of the testing platform (1). A fixing opening (3) is opened at the top center of the fixing frame (2). A hydraulic push rod (4) is fixedly provided on the inner wall of the fixing opening (3) and extends vertically downward. The output shaft of the hydraulic push rod (4) is fixedly provided with an extrusion block (5) via a coupling. Two lampshades (6) are fixedly provided on the bottom outer wall of the fixing frame (2) via a bracket. The two lampshades (6) are respectively located on both sides of the extrusion block (5). Heating lamp tubes (7) are installed on the inner walls of both ends of the two lampshades (6). Positioning plates (8) are fixedly provided on both sides of the top of the two lampshades (6). An infrared temperature detector (9) is fixedly provided vertically downward at the center of the two positioning plates (8) via an opening.
2. A cement bending resistance detection device according to claim 1, characterized in that: Sliding plates (10) are respectively provided on both sides of the top of the detection platform (1), and supporting plates (13) are provided on the tops of the two sliding plates (10).
3. A cement bending resistance detection device according to claim 2, characterized in that: The top outer wall of the detection platform (1) is provided with two slide grooves (11), the bottom outer walls of the two sliding plates (10) are fixed with sliders (12), and the outer walls of the two sliders (12) are slidably connected to the inner walls of the slide grooves (11).
4. A cement bending resistance detection device according to claim 2, characterized in that: Two first positioning holes (14) are formed on the top outer walls of the two sliding plates (10), and two second positioning holes (15) are formed on the bottom outer walls of the two supporting plates (13). A vertically upward compression spring (16) is fixedly provided on the inner walls of the two first positioning holes (14), and one end of the top of the two compression springs (16) is fixedly connected to the top inner wall of the second positioning hole (15). Limiting blocks (17) are fixedly provided on both ends of the top of the two supporting plates (13).
5. A cement bending resistance detection device according to claim 3, characterized in that: The top of the detection platform (1) is engraved with scale line grooves (20) distributed at equal distances, and the scale line grooves (20) are located on one side of the slide groove (11).
6. A cement bending resistance detection device according to claim 1, characterized in that: A lamp knob switch (18) is installed on the top outer wall of the test bench (1), and two push rod control switch buttons (19) are installed on the top outer wall of the test bench (1).
7. A cement bending resistance detection device according to claim 1, characterized in that: The four corners of the bottom of the testing platform (1) are fixedly provided with supporting legs (21) distributed at equal distances.