Pressure resistance and impermeability detection device for steel fiber reinforced concrete

Abstract

The utility model relates to the technical field of concrete preparation, and discloses a steel fiber reinforced concrete compression resistance and impermeability detection device which is characterized in that electric pressing rods are symmetrically arranged at the upper end of a rack of a top supporting table, and the telescopic ends of the electric pressing rods are provided with a tool table which is guided by arm power supporting rods; a detection tool vertically opposite to the material placing table is installed in the middle of a rack of the tool table in a penetrating mode. According to the utility model, by utilizing the pressure guiding combination of the electric pressure rod and the tool table, the detection tool is pressed down to the concrete block, rated downward pressure is applied to the concrete block, the compression resistance of the concrete block is detected, and then water is injected into the water injection cavity through the water through valve based on the compression of the pressure seat in the detection tool and the concrete block, so that the concrete block can be detected. And under the downward pressing of the pushing and injecting rubber plug pushed by the lifting driving assembly, downward pressing seepage force is applied to water, synchronous anti-seepage detection is carried out on the concrete block subjected to anti-pressing detection, and good linkage detection performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete preparation, in particular to a steel fiber concrete compression and seepage resistance detection device. Background Art

[0002] Steel fiber concrete is a new type of multiphase composite material formed by adding randomly distributed short steel fibers to ordinary concrete. These randomly distributed steel fibers can effectively hinder the expansion of microcracks inside the concrete and the formation of macrocracks, significantly improving the tensile, bending, impact and fatigue resistance of the concrete.

[0003] After the steel fiber concrete is cast in modules, its performance needs to be tested using a testing device to ensure its qualified performance, as shown in the existing patent technology: After searching, the China Patent Network discloses a concrete performance testing device for concrete preparation (public announcement number CN212674720U). When using this type of device, first place the concrete test block on the concrete test block placement seat, and then start the hydraulic press, and use the hydraulic press to drive the pressure plate to press the concrete test block downward to monitor its compressive resistance. Then, when performing anti-penetration testing, the anti-penetration test sleeve is sleeved on the test block, and the penetration test sleeve is fixed on the concrete test block placement seat by a nut. The booster pump is turned on to inject water into the anti-penetration test sleeve, and gradually pressurized to the pressure value specified by the industry. Then, after a specified period of time, observe whether the measuring tube in the cabinet is filled with water and the amount of water, so as to determine the anti-penetration performance of the concrete.

[0004] However, there are still some shortcomings in the above-mentioned public patents and the concrete performance testing devices adopted in the existing market: the existing method of using pressure equipment and water pressure equipment to test the compression resistance and permeability of concrete in turn, during use, the compression resistance and permeability components are not connected to each other. After a single set of experimental tests are completed, the components need to be removed before the next set of experimental tests can be carried out. The operation is time-consuming and labor-intensive, and the detection efficiency is relatively low.

[0005] To this end, those skilled in the art provide a steel fiber concrete compression and seepage resistance testing device to solve the problems raised in the above background technology. Utility Model Content

[0006] The main purpose of the utility model is to provide a steel fiber concrete compression and seepage resistance detection device, which can effectively solve the problem of poor detection flexibility of the existing concrete detection device in the background technology.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a steel fiber concrete compression and impermeability detection device, comprising a bottom support platform and a top support platform horizontally arranged just above the bottom support platform;

[0008] The bottom support platform and the top support platform are integrally fixedly connected via an arm support rod installed on their frames;

[0009] The upper end of the frame of the bottom support platform is provided with a material placing platform, the upper end of the frame of the top support platform is symmetrically provided with an electric pressure rod, and the telescopic end of the electric pressure rod is provided with a tooling table guided by the arm force support rod;

[0010] A detection tool is installed through the middle of the frame of the tooling table and is vertically opposite to the material placement table.

[0011] As a further solution of the utility model: the workbench includes a pressure plate installed on the telescopic end of the electric pressure rod and an arm guide rod arranged circumferentially along the pressure plate and installed on the bottom support platform; the frame edge of the pressure plate is provided with a guide groove guiding the arm support rod, and the edge of the frame of the pressure plate is provided with a guide sleeve guiding the arm guide rod.

[0012] As a further solution of the utility model: the detection tooling includes a pressure seat installed through the middle of the tooling table frame, a lifting drive assembly is arranged on the upper end of the support of the pressure seat, and a water injection cavity is opened inside the support of the pressure seat, a push-in injection plug connected to the lifting drive assembly is slidably connected to the top of the water injection cavity, and a water valve that passes through the pressure seat is conductively connected to the bottom of the water injection cavity.

[0013] As a further solution of the utility model: the lifting drive assembly includes a transmission shell installed on the upper end of the pressure seat support, the transmission shell is rotatably connected to a transmission sleeve inside the shell, and a driving handwheel opposite to the transmission sleeve is provided on one side of the shell of the transmission shell, and a lifting screw connected to the injection plug is screwed through the inside of the shaft sleeve of the transmission sleeve.

[0014] As a further solution of the utility model: a transmission worm gear is sleeved on the outer side of the transmission housing sleeve, and a transmission worm screw meshing with the transmission worm gear is provided on the central axis of the driving hand wheel.

[0015] As a further solution of the utility model: the bottom liner of the support of the pressure seat is provided with a sealing gasket.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] When the utility model performs compression and seepage resistance testing on the cast steel fiber concrete, the concrete block is first placed on the material placement table, and then the detection tooling is pressed down onto the concrete block by utilizing the pressure guide combination of the electric pressure rod and the tooling table, and the rated downward pressure is applied to the concrete block to perform the compression resistance testing. After the pressure test is completed, based on the tight pressure between the pressure seat and the concrete block in the detection tooling, water is injected into the water injection cavity through the water valve, and under the downward pressure of the injection plug pushed by the lifting drive component, downward pressure penetration force is applied to the water, and the concrete block after the compression test is synchronously tested for seepage resistance. The utility model has good linkage detection performance, which can improve the detection efficiency and reduce the control intensity at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a steel fiber concrete compression and seepage resistance detection device of the utility model;

[0019] Figure 2 This is a structural schematic diagram of a tooling platform in a steel fiber concrete compression and seepage resistance testing device of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a detection tool in a steel fiber concrete compression and seepage resistance detection device of the utility model;

[0021] Figure 4 The utility model is a partial cross-sectional view of a detection tool in a steel fiber concrete compression and seepage resistance detection device.

[0022] In the figure: 1. bottom support platform; 2. top support platform; 3. arm support rod; 4. material placement platform; 5. electric pressure rod; 6. tooling platform; 61. pressure plate; 62. guide slide groove; 63. guide sleeve; 64. arm guide rod; 7. detection tooling; 71. pressure seat; 72. water valve; 73. transmission housing; 74. driving hand wheel; 75. lifting screw; 76. water injection chamber; 77. push-in rubber plug; 78. transmission thread sleeve; 79. transmission worm gear; 710. transmission worm. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to Figure 1-4 As shown, a steel fiber concrete compression and seepage resistance testing device comprises a bottom support platform 1 and a top support platform 2 horizontally arranged just above the bottom support platform 1. The bottom support platform 1 and the top support platform 2 are integrally fixedly connected by an arm support rod 3 installed on their frames. A material placement platform 4 is arranged on the upper end of the frame of the bottom support platform 1, and an electric pressure rod 5 is symmetrically arranged on the upper end of the frame of the top support platform 2. When the steel fiber concrete is subjected to compression and seepage resistance testing, the cast concrete blocks are placed on the material placement platform 4, and then based on the pressure push of the electric pressure rod 5, the testing tool 7 is pressed down onto the concrete blocks to apply downward pressure thereto, and the compressive performance thereof is tested by controlling the downward pressure of the electric pressure rod 5.

[0027] The telescopic end of the electric pressure rod 5 is provided with a tooling table 6 guided by the arm force support rod 3. The tooling table 6 includes a pressure plate 61 installed on the telescopic end of the electric pressure rod 5 and an arm force guide rod 64 arranged circumferentially along the pressure plate 61 and installed on the bottom support table 1. The frame frame of the pressure plate 61 is provided with a guide groove 62 guided by the arm force support rod 3, and the frame edge of the pressure plate 61 is penetrated by a guide sleeve 63 guided by the arm force guide rod 64. By utilizing the lifting and lowering guide of the guide groove 62 and the arm force support rod 3 in the tooling table 6, as well as the lifting and lowering guide of the guide sleeve 63 and the arm force guide rod 64, a dual guiding effect can be provided for the lifting and lowering of the pressure plate 61, thereby ensuring the accuracy and stability of the lifting and lowering displacement of the detection tool 7.

[0028] A detection tool 7 is installed through the middle of the frame of the tooling table 6 and is vertically opposite to the loading table 4. The detection tool 7 includes a pressure seat 71 installed through the middle of the plate frame of the tooling table 6. The bottom of the support of the pressure seat 71 is padded with a sealing gasket. By lining the bottom of the pressure seat 71 with a sealing gasket, the compression sealing performance between the pressure seat 71 and the concrete block can be improved, and the water injection cavity 76 inside the pressure seat 71 can be sealed and isolated, so as to facilitate the subsequent injection of water into the water injection cavity 76 to perform anti-seepage testing.

[0029] The upper end of the support of the pressure seat 71 is provided with a lifting drive assembly, and a water injection chamber 76 is opened inside the support of the pressure seat 71, the top of the chamber of the water injection chamber 76 is slidably connected with a push-injection plug 77 connected to the lifting drive assembly, and the bottom of the chamber of the water injection chamber 76 is connected with a water valve 72 that passes through the pressure seat 71, and the lifting drive assembly includes a transmission shell 73 installed on the upper end of the support of the pressure seat 71, and the transmission shell 73 is rotatably connected with a transmission thread sleeve 78 inside the shell, and a driving hand wheel 74 opposite to the transmission thread sleeve 78 is provided on one side of the shell of the transmission shell 73, and the shaft sleeve of the transmission thread sleeve 78 is threaded with a lifting screw connected to the push-injection plug 77. The screw rod 75 and the transmission housing 73 are sleeved with a transmission worm wheel 79 on the outer side of the shaft sleeve. The central axis of the driving hand wheel 74 is provided with a transmission worm 710 meshing with the transmission worm wheel 79. The driving hand wheel 74 is rotated to drive the transmission worm 710 to rotate. The meshing transmission of the transmission worm 710 and the transmission worm wheel 79 is used to push the transmission thread sleeve 78 to rotate in the horizontal direction. While the transmission thread sleeve 78 rotates, it utilizes the meshing with the thread teeth of the lifting screw rod 75 to convert the rotational force into a lifting thrust, thereby pushing the lifting screw rod 75 to move up and down. As a lifting power source, it pushes the injection plug 77 in the water injection chamber 76 to move downward, thereby applying a downward pressure penetration force to the water in the water injection chamber 76.

[0030] The working principle of the utility model is as follows: when the steel fiber concrete is subjected to compression and seepage resistance test, the cast concrete blocks are placed on the material placing platform 4, and then the pressure push of the electric pressure rod 5, as well as the lifting and lowering guide of the guide slide 62 and the arm support rod 3, and the lifting and lowering guide of the guide sleeve 63 and the arm guide rod 64 in the tooling platform 6, play a dual guiding role, and the detection tooling 7 on the tooling platform 6 is accurately and stably pressed down on the concrete blocks, and the compression resistance test of the concrete blocks is carried out by the downward pressure of the electric pressure rod 5, and after the compression resistance test of the concrete blocks is completed, water can be synchronously injected into the water valve 72 to fill the water injection cavity 76, and then the water valve 72 is closed, and the driving hand wheel 74 is rotated at this time, By utilizing the meshing transmission combination of the transmission worm 710 and the transmission worm wheel 79, the transmission thread sleeve 78 is pushed to rotate in the horizontal direction. While the transmission thread sleeve 78 is rotating, it utilizes the meshing with the thread teeth of the lifting screw rod 75 to convert the rotational force into a lifting thrust, thereby pushing the lifting screw rod 75 to move up and down. As a lifting power source, it pushes the push-in plug 77 in the water injection chamber 76 to move downward, exerts a downward pressure penetration force on the water in the water injection chamber 76, and allows the water to penetrate into the concrete blocks, so as to detect the impermeability of the concrete blocks. The utility model has good integrated linkage detection performance, and can perform compression resistance and impermeability linkage detection on the concrete blocks, thereby improving the detection efficiency and reducing the operating intensity of frequent equipment replacement, and having better convenient use performance.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel fiber concrete compression and seepage resistance testing device, comprising a bottom support platform (1) and a top support platform (2) horizontally arranged directly above the bottom support platform (1). It is characterized by: The bottom support platform (1) and the top support platform (2) are integrally fixedly connected via an arm support rod (3) installed on their frames; The upper end of the frame of the bottom support platform (1) is provided with a material placement platform (4), the upper end of the frame of the top support platform (2) is symmetrically provided with an electric pressure rod (5), and the telescopic end of the electric pressure rod (5) is provided with a tooling platform (6) guided by the arm force support rod (3); A detection tool (7) is installed through the middle of the frame of the tooling table (6) and is vertically opposite to the material placement table (4).

2. A steel fiber concrete compression and impermeability testing device according to claim 1, characterized in that: The tooling platform (6) comprises a pressure plate (61) mounted on the telescopic end of the electric pressure rod (5) and an arm force guide rod (64) arranged along the circumference of the pressure plate (61) and mounted on the bottom support platform (1); a frame frame of the pressure plate (61) is provided with a guide groove (62) for guiding the arm force support rod (3); and a guide sleeve (63) for guiding the arm force guide rod (64) is provided through the frame edge of the pressure plate (61).

3. A steel fiber concrete compression and impermeability testing device according to claim 1, characterized in that: The detection tooling (7) comprises a pressure seat (71) which is installed through the middle of the plate frame of the tooling table (6); a lifting drive assembly is arranged on the upper end of the support of the pressure seat (71); a water injection cavity (76) is provided inside the support of the pressure seat (71); a push-injection rubber plug (77) connected to the lifting drive assembly is slidably connected to the top of the chamber of the water injection cavity (76); and a water valve (72) which passes through the pressure seat (71) is conductively connected to the bottom of the chamber of the water injection cavity (76).

4. A steel fiber concrete compression and impermeability testing device according to claim 3, characterized in that: The lifting drive assembly comprises a transmission housing (73) mounted on the upper end of a support of a pressure seat (71), a transmission sleeve (78) being rotatably connected to the interior of the housing of the transmission housing (73), and a driving hand wheel (74) opposite to the transmission sleeve (78) being provided on one side of the housing of the transmission housing (73), and a lifting screw rod (75) connected to the injection rubber plug (77) being threadedly connected to the interior of the shaft sleeve of the transmission sleeve (78).

5. A steel fiber concrete compression and seepage detection device according to claim 4, characterized in that: A transmission worm wheel (79) is sleeved on the outer side of the shaft sleeve of the transmission housing (73), and a transmission worm (710) meshing with the transmission worm wheel (79) is disposed on the central axis of the driving hand wheel (74).

6. A steel fiber concrete compression and impermeability testing device according to claim 3, characterized in that: The support bottom of the pressure seat (71) is lined with a sealing gasket.

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