Simple dismounting and mounting device for concrete impermeability test piece

Abstract

The utility model discloses a simple dismounting and mounting device for a concrete impermeability test specimen, relates to the field of concrete performance detection equipment, and aims to solve the problems that the concrete impermeability test specimen is high in occurrence difficulty in the dismounting and mounting process, and a device for assisting the dismounting and mounting of the concrete impermeability test specimen is low in safety and applicability. The supporting frame and the upper layer of the supporting rod form an anti-seepage test piece placement area, the supporting frame and the lower layer of the supporting rod form an anti-seepage test piece pressing area, the anti-seepage test piece placement area comprises a concrete permeameter steel mold, a fixing rod is arranged on the upper side of the concrete permeameter steel mold and installed on the supporting frame, and a clamping groove is formed in the portion, at the lower end of the concrete permeameter steel mold, of the supporting rod; the concrete anti-seepage test piece dismounting and mounting device has the advantages that the stability and efficiency of the concrete anti-seepage test piece dismounting and mounting process are improved, and the risk in the dismounting and mounting process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete performance testing equipment, in particular to a simple concrete anti-seepage test specimen disassembly and assembly device. Background Art

[0002] In the scientific research of concrete materials, impermeability is an important physical performance index, which reflects the ability of concrete to resist water penetration. In order to accurately evaluate this performance, it is necessary to conduct an impermeability test on concrete specimens. However, traditional concrete impermeability specimens are often operated using a pressure testing machine during the assembly and disassembly process before and after the test. This method is not only difficult to operate, but also has certain safety hazards.

[0003] The traditional method of assembling and disassembling concrete impermeability test pieces mainly relies on pressure testing machines. Since the pressure testing machine was originally designed for pressure testing, its operating space is limited, making the assembly and disassembly of the impermeability test piece difficult. In addition, the weight of the impermeability test piece and the steel test mold is large, and two people are required to operate it, which is prone to collision, not only affecting the integrity of the test piece, but also causing personal injury to the operator.

[0004] The patent with application number "CN202122219625.5" discloses: a concrete specimen disassembly and assembly device for anti-seepage test, including a top cover, a stress rod and a jack, the top cover is circular, the stress rod is multiple, the stress rod is located below the top cover and is fixedly connected to the top cover, the lower end of the stress rod is horizontally bent inward to form a placement part of the anti-seepage sleeve mold, and when in use, the jack is placed on the anti-seepage sleeve mold. This application reduces the physical exertion and work risks of the test personnel to a certain extent, and improves the efficiency of the anti-seepage test.

[0005] However, the placement portion in this application lacks a mechanism for positioning with the axis of the jack. The concrete permeameter steel mold is easily misaligned with the center of the jack when placed, resulting in uneven force on the test piece in the concrete permeameter steel mold and even causing the concrete permeameter steel mold to tip over. In addition, the inward horizontal bending length of the placement portion is fixed, and the fixing portion can only place part of the concrete permeameter steel mold. It cannot be used for concrete permeameter steel molds of different sizes. The device is insufficient in safety and applicability. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a simple concrete impermeability test specimen disassembly and assembly device. Through this design, the problem of great difficulty in disassembly and assembly of concrete impermeability test specimens and low safety and applicability of the devices assisting their disassembly and assembly is effectively solved.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model includes a support frame, a support rod is fixedly connected to the middle part of the support frame, the support frame and the upper layer of the support rod constitute an anti-permeability test piece placement area, the support frame and the lower layer of the support rod constitute an anti-permeability test piece pressure area, the anti-permeability test piece placement area includes a concrete permeameter steel mold, a fixing rod is provided on the upper side of the concrete permeameter steel mold, the fixing rod is installed on the support frame, a slot is provided on the support rod at the lower end of the concrete permeameter steel mold, the anti-permeability test piece pressure area includes a lifting piston rod, the lifting piston rod is located directly below the slot, and the lower end of the lifting piston rod is installed at the bottom of the support frame.

[0008] Preferably, the fixing rod comprises a first support rod and a second support rod, both ends of the first support rod and the second support rod are fixedly connected with a sliding sleeve, and the sliding sleeve is slidably connected to the support frame.

[0009] Preferably, a fixing hole is provided on the sliding sleeve, and the sliding sleeve and the supporting frame are fixed by bolts.

[0010] Preferably, the slot includes a first positioning slot and a second positioning slot, the first positioning slot cooperates with the lower opening of the concrete permeameter steel mold, and the second positioning slot cooperates with the upper opening of the concrete permeameter steel mold.

[0011] Preferably, the pressure area of ​​the impermeability test piece also includes a jack, and the bottom of the lifting piston rod is fixedly connected to the jack.

[0012] Preferably, a cushion block is fixedly connected to the upper end of the lifting piston rod.

[0013] Compared with the prior art, the utility model has the following outstanding advantages:

[0014] The utility model can be placed on the side of the full-automatic concrete permeameter through the support frame, and the disassembly and assembly of the anti-seepage test piece can be completed beside the full-automatic concrete permeameter, thereby reducing the transportation distance of the anti-seepage test piece and the steel mold. The disassembly and assembly of the anti-seepage part can be operated by one person, which is convenient and quick. At the same time, the center of the lifting piston rod and the steel mold of the concrete permeameter is positioned with high safety, which saves the detection time of the concrete anti-seepage test and the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a rear view structural schematic diagram of the utility model.

[0017] Figure 3 This is a schematic diagram of the fixing rod connection structure of the utility model.

[0018] Figure 4This is a schematic diagram of the card slot structure of the utility model.

[0019] Numbers in the figure: 1, support frame; 2, support rod; 3, concrete permeameter steel mold; 4, fixing rod; 401, first support rod; 402, second support rod; 403, sliding sleeve; 5, slot; 501, first positioning slot; 502, second positioning slot; 6, lifting piston rod; 7, jack. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model are clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Please refer to the attached Figure 1-4 , the present embodiment is a simple concrete impermeability test specimen disassembly and assembly device: it includes a support frame 1, a support rod 2 is fixedly connected to the middle part of the support frame 1, the upper layer of the support frame 1 and the support rod 2 constitutes an impermeability test specimen placement area, and the lower layer of the support frame 1 and the support rod 2 constitutes an impermeability test specimen pressure area, the impermeability test specimen placement area includes a concrete permeameter steel mold 3, a fixing rod 4 is provided on the upper side of the concrete permeameter steel mold 3, and the fixing rod 4 is installed on the support frame 1, and a card slot 5 is provided on the support rod 2 at the lower end of the concrete permeameter steel mold 3, and the impermeability test specimen pressure area includes a lifting piston rod 6, and the lifting piston rod 6 is located directly below the card slot 5, and the lower end of the lifting piston rod 6 is installed at the bottom of the support frame 1.

[0022] The support frame 1 is a rectangular parallelepiped structure composed of multiple square steels. The preferred dimensions of the support frame 1 are: 510mm high, 300mm wide, and 450mm long. The support rod 2 and the fixed rod 4 are both square steels. The support rod 2 supports the concrete permeameter steel mold 3 and must have sufficient rigidity to offset the gravity of the concrete permeameter steel mold 3. The fixed rod 4 is used to offset the gravity of the concrete permeameter steel mold 3 exerting force upward. Therefore, the support rod 2 and the fixed rod 4 must be made of a material with strong rigidity. The upper diameter of the concrete permeameter steel mold 3 is smaller than the lower diameter. The concrete testing room enters the concrete permeameter steel mold 3 from the lower mouth of the concrete permeameter steel mold 3. The jack 7 and the lifting piston rod 6 are located below the concrete permeameter steel mold 3. Before the concrete anti-permeability test, the upper mouth of the concrete permeameter steel mold 3 is facing upward, and the fixed rod 4 is placed on the upper side of the upper mouth of the concrete permeameter steel mold 3. The concrete is squeezed by the lifting piston rod 6 for a long time. In the concrete permeameter steel mold 3, the fixing rod 4 is composed of a first support rod 401 and a second support rod 402, and the first support rod 401 and the second support rod 402 can slide relative to the support frame 1. When placing the concrete permeameter steel mold 3, the first support rod 401 and the second support rod 402 can be opened to a larger width, and the concrete permeameter steel mold 3 can be placed from the upper side of the support frame 1, or it can be placed from the side of the support rod 2. After the concrete permeameter steel mold 3 is placed, the movable first support rod 401 and the second support rod 402 can be moved to a suitable position according to the size of the concrete permeameter steel mold 3, so that the first support rod 401 and the second support rod 402 have a good limiting effect on the concrete permeameter steel mold 3; further, in order to fix the first support rod 401 and the second support rod 402 well at the position after moving, the first support rod 401 and the second support rod 402 are additionally provided with a sliding sleeve 403 and a fixing bolt to fix them.

[0023] The axes of the concrete permeameter steel mold 3, the lifting piston rod 6 and the slot 5 are on the same vertical line, ensuring that the center of the lifting piston rod 6 acts exactly on the center of the concrete permeameter steel mold 3, avoiding the concrete permeameter steel mold 3 from having internal concrete anti-seepage fixed deflection or even part tipping due to force deflection. The slot 5 is provided with a first positioning groove 501 and a second positioning groove 502, the first positioning groove 501 cooperates with the lower mouth of the concrete permeameter steel mold 3, and the second positioning groove 502 cooperates with the upper mouth of the concrete permeameter steel mold 3.

[0024] The overall workflow of the utility model when used is:

[0025] (1) Before the concrete permeability test, install the sealing ring on the concrete permeability test piece and then put it into the steel mold of the concrete permeameter;

[0026] (2) Place the concrete permeameter steel mold and the concrete permeability test piece on the upper side of the support rod 2 in the permeability test piece placement area, with the upper end of the concrete permeameter steel mold facing upward, the fixing rod 4 placed on the upper edge of the concrete permeameter steel mold, and the lower end of the concrete permeameter steel mold located in the first slot 5;

[0027] (3) Install the jack 7 on the lower layer and place the lifting piston rod 6 in the middle of the impermeability test piece;

[0028] (4) Start the jack 7, and stop loading after the concrete impermeability test piece is completely pushed into the steel mold of the concrete permeameter;

[0029] (5) Unload the jack 7, remove the concrete permeameter steel mold and concrete specimen, and place them on the concrete permeameter for testing;

[0030] (6) After the concrete permeability test is completed, the concrete permeability tester steel mold and the concrete permeability test piece are placed on the upper side of the support rod 2, with the lower end of the concrete permeability tester steel mold facing upward, the fixing rod 4 is placed on the edge of the lower end of the concrete permeability tester steel mold, and the upper end of the concrete permeability tester steel mold is located in the second slot 5;

[0031] (7) Install the jack 7 on the lower layer and place the lifting piston rod 6 in the middle of the impermeability test piece;

[0032] (8) Start jack 7 and stop loading after the concrete water-resistance test piece becomes loose.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A simple concrete impermeability test specimen disassembly and assembly device, characterized in that: The invention comprises a support frame (1), a support rod (2) is fixedly connected to the middle of the support frame (1), the upper layer of the support frame (1) and the support rod (2) constitutes an impermeability test piece placement area, the lower layer of the support frame (1) and the support rod (2) constitutes an impermeability test piece pressure area, the impermeability test piece placement area comprises a concrete permeameter steel mold (3), a fixing rod (4) is provided on the upper side of the concrete permeameter steel mold (3), the fixing rod (4) is mounted on the support frame (1), a clamping groove (5) is provided on the support rod (2) at the lower end of the concrete permeameter steel mold (3), and the impermeability test piece pressure area comprises a lifting piston rod (6), the lifting piston rod (6) is located directly below the clamping groove (5), and the lower end of the lifting piston rod (6) is mounted on the bottom of the support frame (1).

2. A simple concrete impermeability test specimen disassembly and assembly device according to claim 1, characterized in that: The fixed rod (4) comprises a first support rod (401) and a second support rod (402), both ends of the first support rod (401) and the second support rod (402) are fixedly connected with a sliding sleeve (403), and the sliding sleeve (403) is slidably connected to the support frame (1).

3. A simple concrete impermeability test specimen disassembly and assembly device according to claim 2, characterized in that: A fixing hole is provided on the sliding sleeve (403), and the sliding sleeve (403) and the support frame (1) are fixed by bolts.

4. A simple concrete impermeability test specimen disassembly and assembly device according to claim 1, characterized in that: The clamping slot (5) comprises a first positioning slot (501) and a second positioning slot (502), wherein the first positioning slot (501) cooperates with the lower opening of the concrete permeameter steel mold (3), and the second positioning slot (502) cooperates with the upper opening of the concrete permeameter steel mold (3).

5. A simple concrete impermeability test specimen disassembly and assembly device according to claim 1, characterized in that: The pressure application area of ​​the impermeability test piece also includes a jack (7), and the bottom of the lifting piston rod (6) is fixedly connected to the jack (7).

6. A simple concrete impermeability test specimen disassembly and assembly device according to claim 1 or 5, characterized in that: A cushion block is fixedly connected to the upper end of the lifting piston rod (6).

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