Concrete impermeability detection device

Abstract

The utility model discloses a concrete impermeability detection device which is characterized in that a machine table is arranged on the upper surface of a machine base, vertical plates are arranged at the rear end and two sides of the machine table, the top ends of the vertical plates are connected with a top plate, a plurality of limiting guide rods are arranged on the lower surface of the top plate, and a sample seat is further arranged on the upper surface of the machine table; a hydraulic cylinder is arranged on the top plate, a piston rod of the hydraulic cylinder penetrates through the top plate and is connected with a lifting plate, the lifting plate is matched with a limiting guide rod in a guiding mode, and a test mold barrel body is connected with the lifting plate in a matched mode through a screw rod and a limiting nut. And a plurality of limiting guide rods are arranged on the lower surface of the top plate, and the lifting plate is in guide fit with the limiting guide rods, so that the stability is ensured, and meanwhile, the limiting guide rods can abut against the concrete test mold during demolding, so that rapid demolding of the concrete test mold can be realized after detection is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete anti-seepage detection, in particular to a concrete anti-seepage performance detection device. Background Art

[0002] Concrete is a porous body with different pore sizes (10~500μm). When there is a pressure difference (or concentration difference, temperature difference, potential difference) in the surrounding medium, there will be medium migration that obeys fluid mechanics, that is, permeation. The impermeability of concrete is the basic performance of concrete and an important feature of concrete durability. The impermeability of concrete not only represents the ability of concrete to resist water flow through it, but also affects the concrete's resistance to carbonization and chloride ion penetration. The impermeability of concrete is expressed by the impermeability grade (P) or permeability coefficient. The Chinese standard adopts the impermeability grade. The impermeability grade is determined by the maximum water pressure that a standard specimen at the age of 28d can withstand when tested according to the standard test method.

[0003] At present, when the concrete anti-permeability performance testing device is in use, after the concrete test mold is placed on the sample seat, the test mold cylinder is generally carried manually and covered on the outside of the concrete test mold, which greatly increases the labor intensity and has certain risks. After the test is completed, the concrete test mold is generally knocked and separated by a hammer manually when demoulding, which is not convenient enough. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Utility Model Content

[0004] The utility model aims to provide a device for testing the anti-seepage performance of concrete. A hydraulic cylinder is arranged on the upper surface of a top plate. The piston rod of the hydraulic cylinder is connected to a lifting plate. A plurality of test mold cylinders are installed below the lifting plate through a screw. The cylinder of the test mold cylinder can be lowered and raised by the hydraulic cylinder, which greatly reduces the labor intensity compared with the manual method of placing or taking the cylinder. A plurality of limiting guide rods are arranged on the lower surface of the top plate. The lifting plate and the limiting guide rods guide and cooperate with each other to ensure stability. At the same time, the limiting guide rods can be used to resist the concrete test mold during demoulding, so that the concrete test mold can be quickly demoulded after the detection is completed, and the convenience is greatly improved, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for testing the anti-permeability performance of concrete, comprising a frame, a lifting mechanism and a test mold cylinder;

[0006] The frame includes a base, a machine table, vertical plates, a top plate, limit guide rods, a specimen seat and positioning guide rods. A machine table is arranged on the upper surface of the base. Vertical plates are arranged at the rear end and on both sides of the machine table. The tops of the vertical plates are all connected to the top plate. A plurality of limit guide rods are arranged on the lower surface of the top plate. A specimen seat is also arranged on the upper surface of the machine table. Water outlet holes are formed at the central positions of the specimen seats. Positioning guide rods are arranged on both sides of the specimen seats;

[0007] The lifting mechanism includes a hydraulic cylinder and a lifting plate. The hydraulic cylinder is arranged at the central position of the upper surface of the top plate. The piston rod of the hydraulic cylinder passes through the top plate and is connected to the lifting plate. The lifting plate is movably arranged between the top plate and the machine table. The lifting plate is in guiding cooperation with the limit guide rods;

[0008] There are several test die cylinders. A plurality of screws are arranged on the upper surface of the test die cylinders. The test die cylinders are connected to the lifting plate through the screws and limit nuts. The test die cylinders correspond to the specimen seats one by one and cooperate with each other. A flange is arranged on the lower surface of the test die cylinders. Guide holes are formed on both sides of the flange for guiding cooperation with the positioning guide rods. The limit guide rods correspond to the test die cylinders one by one.

[0009] Preferably, in a concrete impermeability performance detection device provided by the present utility model, a circular groove is formed on the upper surface of the specimen seat, and a sealing ring is arranged in the circular groove.

[0010] Preferably, in a concrete impermeability performance detection device provided by the present utility model, the water outlet hole of the specimen seat is connected to a hose. The hose is also connected to a flow regulating valve. The flow regulating valve is connected to a high-pressure water pump through the hose. The high-pressure water pumps are all arranged in the base. The flow regulating valve is arranged on the outer surface of the base. A water tank is also arranged inside the base. The water inlet end of the high-pressure water pump is connected to the water tank through a water pipe.

[0011] Preferably, in a concrete impermeability performance detection device provided by the present utility model, the top end of the positioning guide rod is conical.

[0012] Preferably, in a concrete impermeability performance detection device provided by the present utility model, a small door, a display screen and several buttons are also arranged on the front side of the base.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] (1) A hydraulic cylinder is arranged on the upper surface of the top plate. The piston rod of the hydraulic cylinder is connected to the lifting plate. A plurality of test die cylinders are installed below the lifting plate through screws. The lowering and rising of the cylinders of the test die cylinders can be realized through the hydraulic cylinder. Compared with the way of manually placing or taking the cylinders, the labor intensity is greatly reduced.

[0015] (2)Positioning guide rods are provided on both sides of the specimen seat, and the flange at the bottom of the test mold cylinder body is fitted with the positioning guide rods, so as to ensure the accuracy of the test mold cylinder body and avoid skew.

[0016] (3)A number of limiting guide rods are provided on the lower surface of the top plate. The lifting plate is in guiding cooperation with the limiting guide rods. While ensuring stability, the limiting guide rods can resist the concrete test mold during demolding, so that the concrete test mold can be quickly demolded after the test is completed, greatly improving the convenience.

[0017] (4)The test mold cylinder body is connected to the lifting plate through bolts and nuts, so as to facilitate disassembly and installation during cleaning. Description of the Drawings

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is a top view structural schematic diagram of the machine table;

[0020] Figure 3 is a structural schematic diagram of the inside of the machine base of the present utility model;

[0021] Figure 4 is a schematic diagram of the demolding state of the present utility model.

[0022] In the figure: machine base 1, machine table 2, vertical plate 3, top plate 4, limiting guide rod 5, specimen seat 6, positioning guide rod 7, water outlet hole 8, hydraulic cylinder 9, lifting plate 10, test mold cylinder body 11, screw 12, limiting nut 13, flange 14, sealing ring 15, flow regulating valve 16, high-pressure water pump 17, water tank 18, small door 19, display screen 20, button 21. Detailed Embodiment

[0023] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model;

[0024] It should be noted that in the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a device for detecting the impermeability performance of concrete, comprising a frame, a lifting mechanism and a test mold cylinder 11;

[0026] The frame includes a machine base 1, a machine table 2, vertical plates 3, a top plate 4, limit guide rods 5, a specimen seat 6 and positioning guide rods 7. A machine table 2 is arranged on the upper surface of the machine base 1. Vertical plates 3 are arranged at the rear end and both sides of the machine table 2. The tops of the vertical plates 3 are all connected to the top plate 4. A plurality of limit guide rods 5 are arranged on the lower surface of the top plate 4. A specimen seat 6 is also arranged on the upper surface of the machine table 2. Water outlet holes 8 are opened at the central positions of the specimen seats 6. An annular groove is opened on the upper surface of the specimen seat 6. A sealing ring 15 is arranged in the annular groove. During the impermeability test of concrete, the sealing ring 15 is used to prevent water from overflowing from the bottom of the specimen. The water outlet holes 8 of the specimen seat 6 are connected to a hose, and the hose is also connected to a flow regulating valve 16. The flow regulating valve 16 is connected to a high-pressure water pump 17 through a hose. The high-pressure water pumps 17 are all arranged in the machine base 1. The flow regulating valve 16 is arranged on the outer surface of the machine base 1. A water tank 18 is also arranged inside the machine base 1. The water inlet end of the high-pressure water pump 17 is connected to the water tank 18 through a water pipe. Water is pumped from the water tank 18 by the high-pressure water pump 17, and the flow is controlled by the flow regulating valve 16, so as to control the seepage pressure. Finally, the water seeps out from the water outlet holes 8. Positioning guide rods 7 are arranged on both sides of the specimen seat 6. The tops of the positioning guide rods 7 are conical, so as to facilitate the positioning guide rods 7 to pass through the guide holes of the flange 14 smoothly. A small door 19, a display screen 20 and a plurality of buttons 21 are also arranged on the front side of the machine base 1. The small door is used to facilitate the installation and connection of the high-pressure water pump 17 and the water tank 18. The display screen 20 is used for parameter display;

[0027] The lifting mechanism includes a hydraulic cylinder 9 and a lifting plate 10. The hydraulic cylinder 9 is arranged at the central position on the upper surface of the top plate 4. The piston rod of the hydraulic cylinder 9 passes through the top plate 4 and is connected to the lifting plate 10. The lifting plate 10 is movably arranged between the top plate 4 and the machine table 2. The lifting plate 10 is in guiding cooperation with the limit guide rods 5;

[0028] There are several test mold cylinders 11. A plurality of screw rods 12 are arranged on the upper surface of the test mold cylinder 11. The test mold cylinder 11 is connected to the lifting plate 10 through the screw rods 12 and limit nuts 13. The test mold cylinder 11 corresponds to and cooperates with the specimen seat 6 one by one. A flange 14 is arranged on the lower surface of the test mold cylinder 11. Guide holes are opened on both sides of the flange 14 for guiding cooperation with the positioning guide rods 7. The limit guide rods 5 correspond to the test mold cylinders 11 one by one.

[0029] Usage method and principle: The installation method of the lifting mechanism and the test mold cylinder 11 is as follows: Install the hydraulic cylinder 9 on the upper surface of the top plate 4, then connect the top end of the limit guiding rod 5 to the lower surface of the top plate 4, then fit the guiding hole of the lifting plate 10 with the limit guiding rod 5, and connect the center position of the lifting plate 10 to the piston rod of the hydraulic cylinder 9. Finally, first screw a limit nut 13 onto the screw rod 12, pass the screw rod 12 on the upper surface of the test mold cylinder 11 through the corresponding hole of the lifting plate 10, and then screw another limit nut 13 onto the screw rod 12 to realize the connection between the test mold cylinder 11 and the lifting plate 10 through the two limit nuts 13. When in use, first prepare the concrete test mold to be detected, then coat the periphery of the concrete test mold with a sealing material, and wait for the sealing material to solidify for later use. Raise the lifting plate 10 through the hydraulic cylinder 9, so that the test mold cylinder 11 rises. Subsequently, place the concrete test mold on the upper surface of the specimen seat 6. Then lower the lifting plate 10 through the hydraulic cylinder 9. The positioning guide rods 7 on both sides of the specimen seat 6 pass through the guiding holes of the bottom flange 14 of the test mold cylinder 11 to realize the guiding of the test mold cylinder 11. At this time, the concrete test mold is located inside the test mold cylinder 11. Start the equipment, and the high-pressure water pump 17 pumps out water and seeps out from the water outlet hole 8 under a certain pressure. After the impermeability test is completed, the hydraulic cylinder 9 drives the lifting plate 10 and each test mold cylinder 11 to rise. At this time, the concrete test mold is quickly separated from the test mold cylinder 11 by the block of the limit guiding rod 5 and remains on the specimen seat 6, as Figure 4 shown. The structure of the present utility model is reasonable. The hydraulic cylinder 9 is arranged on the upper surface of the top plate 4, and the piston rod of the hydraulic cylinder 9 is connected to the lifting plate 10. A plurality of test mold cylinders 11 are installed below the lifting plate 10 through the screw rod 12. The lowering and rising of the test mold cylinder 11 can be realized through the hydraulic cylinder 9. Compared with the manual method of placing or removing the cylinder, the labor intensity is greatly reduced; the positioning guide rods 7 are arranged on both sides of the specimen seat 6, and the flange 14 at the bottom of the test mold cylinder 11 cooperates with the positioning guide rods 7 to ensure the accuracy of the test mold cylinder 11 and avoid skew; a plurality of limit guiding rods 5 are arranged on the lower surface of the top plate 4, and the lifting plate 10 is in guiding cooperation with the limit guiding rods 5. While ensuring stability, the limit guiding rods 5 can resist the concrete test mold during demolding, so that the concrete test mold can be quickly demolded after the test is completed, and the convenience is greatly improved; the test mold cylinder 11 is connected to the lifting plate 10 through bolts and nuts, so that it is convenient to disassemble and install during cleaning.

[0030] For the parts not detailed in the present utility model, they are all well-known technologies to those skilled in the art.

[0031] Finally, it should be noted that the above specific implementation manners are only used to illustrate the technical solutions of the present utility model rather than to limit it. Although the present utility model has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified and equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A device for detecting the impermeability performance of concrete, characterized in that: It includes a frame, a lifting mechanism and a test die cylinder (11); The frame includes a base (1), a machine table (2), vertical plates (3), a top plate (4), limit guiding rods (5), a specimen seat (6) and positioning guide rods (7). The upper surface of the base (1) is provided with the machine table (2). Vertical plates (3) are arranged at the rear end and both sides of the machine table (2). The tops of the vertical plates (3) are all connected to the top plate (4). Several limit guiding rods (5) are arranged on the lower surface of the top plate (4). The specimen seat (6) is also arranged on the upper surface of the machine table (2). Water outlet holes (8) are formed at the central positions of the specimen seats (6). Positioning guide rods (7) are arranged on both sides of the specimen seat (6); The lifting mechanism includes a hydraulic cylinder (9) and a lifting plate (10). The hydraulic cylinder (9) is arranged at the central position of the upper surface of the top plate (4). The piston rod of the hydraulic cylinder (9) passes through the top plate (4) and is connected to the lifting plate (10). The lifting plate (10) is movably arranged between the top plate (4) and the machine table (2). The lifting plate (10) is in guiding cooperation with the limit guiding rods (5); There are several test die cylinders (11). Several screws (12) are arranged on the upper surface of the test die cylinder (11). The test die cylinder (11) is connected to the lifting plate (10) through the screws (12) and limit nuts (13). The test die cylinders (11) correspond to and cooperate with the specimen seats (6) one by one. A flange (14) is arranged on the lower surface of the test die cylinder (11). Guide holes are formed on both sides of the flange (14) for guiding cooperation with the positioning guide rods (7). The limit guiding rods (5) correspond to the test die cylinders (11) one by one.

2. The concrete impermeability performance detection device according to claim 1, characterized in that: An annular groove is formed on the upper surface of the specimen seat (6). A sealing ring (15) is arranged in the annular groove.

3. The concrete impermeability performance detection device according to claim 1, characterized in that: The water outlet hole (8) of the specimen seat (6) is connected to a hose. The hose is also connected to a flow regulating valve (16). The flow regulating valve (16) is connected to a high-pressure water pump (17) through a hose. The high-pressure water pumps (17) are all arranged in the base (1). The flow regulating valve (16) is arranged on the outer surface of the base (1). A water tank (18) is also arranged inside the base (1). The water inlet end of the high-pressure water pump (17) is connected to the water tank (18) through a water pipe.

4. A device for detecting the impermeability performance of concrete according to claim 1, characterized in that: The top end of the positioning guide rod (7) is conical.

5. The concrete impermeability performance detection device according to claim 1, characterized in that: A small door (19), a display screen (20) and several buttons (21) are also arranged on the front side of the base (1).

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