Concrete impermeability test piece splitting device

Abstract

The utility model discloses a concrete anti-permeability test piece splitting device which comprises a lower bearing plate unit, two symmetrically distributed vertical rod units are connected to the lower bearing plate unit, the other ends of the vertical rod units are connected with an upper bearing plate unit, each vertical rod unit is further connected with a clamping sleeve unit, and the clamping sleeve units are connected with the upper bearing plate unit. And each clamping sleeve unit is positioned between the bearing plate unit and the lower bearing plate unit. The steel filler strips are fixed in the upper pressing plate and the lower pressing plate and located on the same center line, the problem that centering is difficult when the steel filler strips are manually placed is solved, and working efficiency is improved. By arranging the spring clamping sleeve, the test piece is fixed, and the problem that the test piece is prone to toppling over when placed is solved. The utility model has better stability.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete performance testing equipment, and specifically relates to a concrete anti-seepage test piece splitting device. Background Art

[0002] The impermeability of concrete is a basic property of concrete and one of the important characteristics of concrete durability. The impermeability of concrete not only represents the ability of concrete to resist water flow, but also affects the concrete's resistance to carbonization and chloride ion penetration.

[0003] The relative permeability test requirements for concrete in the SL / T352-2020 "Testing Procedure for Hydraulic Concrete" and the DL / T5150-2017 "Testing Procedure for Hydraulic Concrete" are as follows: after the test piece is pressurized to the specified pressure and taken out, the test piece is taken out to measure its seepage height. The specific method is: take the test piece out of the casing and place it on the press, place a 6mm steel pad parallel to each other along the diameter direction at both ends of the test piece, and start the machine to split the test piece. After 2 to 3 minutes, measure the seepage height of the split surface of the test piece. This method has the following disadvantages during operation: the diameter of the test piece is not easy to find during the test, and the upper and lower steel pads are not on the same center line; after the steel pads are placed on the upper and lower bottom diameters of the test piece, the test piece is easy to fall sideways, and manual straightening is required, which is not conducive to operation. Utility Model Content

[0004] The utility model aims to provide a concrete anti-permeability test piece splitting device, which solves the problem that the diameter is not easy to find out in the concrete relative permeability test in the prior art.

[0005] The technical solution adopted by the utility model is: a concrete impermeability test piece splitting device, including a lower pressure plate unit, the lower pressure plate unit is connected to two symmetrically distributed vertical rod units, the other end of the vertical rod unit is connected to the upper pressure plate unit, each vertical rod unit is also respectively connected to a sleeve unit, and each sleeve unit is located between the pressure plate unit and the lower pressure plate unit.

[0006] The utility model is also characterized in that:

[0007] The lower pressure plate unit comprises a bottom plate, a positioning plate is fixedly connected to the middle of the top of the bottom plate, a lower steel pad is fixedly connected to the diameter of the positioning plate, and the length of the lower steel pad is the same as the diameter of the positioning plate.

[0008] The vertical rod unit comprises a vertical rod, one end of which is fixedly connected to the top of the bottom plate near the side surface, and a spring base is fixedly connected to the middle of the side surface of the vertical rod, and the cross section of the spring base is in the shape of concentric rings.

[0009] The upper pressure plate unit includes a top plate, which has two through holes parallel to its axis. The two through holes are symmetrical, and each through hole is penetrated by a corresponding vertical rod. An upper steel pad is fixedly connected to the bottom diameter of the top plate. The upper steel pad is parallel to the lower steel pad, and the length of the upper steel pad is the same as the diameter of the top plate. A pressure column is fixedly connected to the middle of the top of the top plate.

[0010] The clamping sleeve unit comprises a spring, one end of which is clamped with a corresponding spring base, the outer side of the other end of the spring is sleeved with a circular sleeve, and the other end of the circular sleeve is fixedly connected with an arc clamping ring.

[0011] The beneficial effects of the utility model are: by fixing the steel pads in the upper and lower pressure plates and on the same center line, the problem of difficulty in centering the steel pads when placed manually is solved, and the work efficiency is improved. By setting a spring clamp, the test piece is fixed, and the problem of the test piece being easy to tip over is solved. The utility model has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the concrete anti-seepage test piece splitting device of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the lower bearing plate unit of the concrete anti-seepage test piece splitting device of the utility model;

[0014] Figure 3 Schematic diagram of the top view of the lower pressure plate unit of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the vertical rod unit of the concrete anti-seepage test piece splitting device of the utility model;

[0016] Figure 5 It is a schematic diagram of the structure of the upper bearing plate unit of the concrete anti-seepage test piece splitting device of the utility model;

[0017] Figure 6 The utility model is a schematic diagram of the structure of the ferrule unit of the concrete anti-seepage test piece splitting device.

[0018] In the figure: 1. lower pressure plate unit; 101. bottom plate; 102. positioning plate; 103. lower steel pad; 2. vertical pole unit; 201. vertical pole; 202. spring base; 3. upper pressure plate unit; 301. top plate; 302. pressure column; 303. upper steel pad; 4. ferrule unit; 401. arc retaining ring; 402. circular casing; 403. spring. DETAILED DESCRIPTION

[0019] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0020] like Figure 1As shown, the utility model provides a concrete impermeability test piece splitting device, including a lower pressure plate unit 1, to which two symmetrically distributed vertical rod units 2 are connected, and the other end of the vertical rod unit 2 is connected to an upper pressure plate unit 3, and each vertical rod unit 2 is also respectively connected to a sleeve unit 4, and each sleeve unit 4 is located between the pressure plate unit 3 and the lower pressure plate unit 1.

[0021] like Figure 2-3 As shown, the lower pressure plate unit 1 includes a bottom plate 101, a positioning plate 102 is fixedly connected to the top middle of the bottom plate 101, a lower steel pad 103 is fixedly connected to the diameter of the positioning plate 102, the length of the lower steel pad 103 is the same as the diameter of the positioning plate 102, and it is placed in the center of the positioning plate 102, and its purpose is to split the concrete waterproof specimen.

[0022] like Figure 4 As shown, the vertical pole unit 2 includes a vertical pole 201, one end of which is fixedly connected to the top of the bottom plate 101 near the side, and a spring base 202 is fixedly connected to the middle of the side of the vertical pole 201. The cross-section of the spring base 202 is a concentric ring shape, and its purpose is to put the spring 403 on the inner ring.

[0023] like Figure 5 As shown, the upper pressure plate unit 3 includes a top plate 301, and two through holes 304 parallel to its axis are formed on the top plate 301, and the two through holes 304 are symmetrical, and each through hole 304 is penetrated by a corresponding vertical rod 201, and an upper steel pad 303 is fixedly connected to the bottom diameter of the top plate 301, and the upper steel pad 303 is parallel to the lower steel pad 103, and the length of the upper steel pad 303 is the same as the diameter of the top plate 301, and a pressure column 302 is fixedly connected to the middle of the top of the top plate 301.

[0024] like Figure 6 As shown, the sleeve unit 4 includes a spring 403, one end of which is clamped with the corresponding spring base 202, and the outer side of the other end of the spring 403 is sleeved with a circular casing 402, and the other end of the circular casing 402 is fixedly connected with an arc clamping ring 401, and the purpose of the arc clamping ring 401 is to stabilize the concrete impermeability test piece.

[0025] The concrete anti-seepage test piece splitting device provided by the utility model has the following working principles:

[0026] Step 1: Place the device at the center of the lower pressure plate of the press.

[0027] Step 2: tighten the arc clamp 401 and place the concrete waterproof test piece on the positioning plate 102 of the device.

[0028] Step three: adjust the concrete impermeability test piece so that its bottom overlaps with the positioning plate 102.

[0029] Step 4: Loosen the arc clamping ring 401, which will automatically clamp the middle part of the concrete waterproof test piece to prevent it from tilting left or right.

[0030] Step 5: Place the top plate 301 through the through hole 304 and align it with the vertical pole 201, and slowly lower it so that the upper steel pad 303 of the top plate 301 contacts the concrete waterproof test piece.

[0031] Step six, start the press and slowly apply load to the pressure column 302 until the concrete waterproof test piece is split.

[0032] Example 1

[0033] like Figure 1 As shown, the concrete impermeability specimen splitting device proposed in this embodiment includes a lower pressure plate unit 1, to which two symmetrically distributed vertical rod units 2 are connected, and the other end of the vertical rod unit 2 is connected to an upper pressure plate unit 3, and each vertical rod unit 2 is also connected to a sleeve unit 4, each sleeve unit 4 is located between the pressure plate unit 3 and the lower pressure plate unit 1.

[0034] Example 2

[0035] like Figure 1-2 As shown, the concrete impermeability specimen splitting device proposed in this embodiment includes a lower pressure plate unit 1, and two symmetrically distributed vertical rod units 2 are connected to the lower pressure plate unit 1, and the other end of the vertical rod unit 2 is connected to the upper pressure plate unit 3, and each vertical rod unit 2 is also respectively connected to a sleeve unit 4, and each sleeve unit 4 is located between the pressure plate unit 3 and the lower pressure plate unit 1. The lower pressure plate unit 1 includes a bottom plate 101, and a positioning plate 102 is fixedly connected to the middle of the top of the bottom plate 101. A lower steel pad 103 is fixedly connected to the diameter of the positioning plate 102, and the length of the lower steel pad 103 is the same as the diameter of the positioning plate 102.

[0036] Example 3

[0037] like Figure 1-5As shown, the concrete impermeability test piece splitting device proposed in this embodiment includes a lower pressure plate unit 1, and two symmetrically distributed vertical rod units 2 are connected to the lower pressure plate unit 1. The other end of the vertical rod unit 2 is connected to the upper pressure plate unit 3. Each vertical rod unit 2 is also connected to a sleeve unit 4, and each sleeve unit 4 is located between the pressure plate unit 3 and the lower pressure plate unit 1. The lower pressure plate unit 1 includes a bottom plate 101, and a positioning plate 102 is fixedly connected to the middle of the top of the bottom plate 101. A lower steel pad 103 is fixedly connected to the diameter of the positioning plate 102, and the length of the lower steel pad 103 is the same as the diameter of the positioning plate 102. The vertical rod unit 2 includes a vertical rod 201, one end of which is fixedly connected to the top of the bottom plate 101 near the side, and a spring base 202 is fixedly connected to the middle of the side of the vertical rod 201. The cross section of the spring base 202 is concentric ring-shaped. The upper pressure plate unit 3 includes a top plate 301, which has two through holes 304 parallel to its axis. The two through holes 304 are symmetrical, and each through hole 304 is penetrated by a corresponding vertical rod 201. An upper steel pad 303 is fixedly connected to the bottom diameter of the top plate 301. The upper steel pad 303 is parallel to the lower steel pad 103, and the length of the upper steel pad 303 is the same as the diameter of the top plate 301. A pressure column 302 is fixedly connected to the middle of the top of the top plate 301.

[0038] Example 4

[0039] like Figure 1-6As shown, the concrete impermeability test piece splitting device proposed in this embodiment includes a lower pressure plate unit 1, and two symmetrically distributed vertical rod units 2 are connected to the lower pressure plate unit 1. The other end of the vertical rod unit 2 is connected to the upper pressure plate unit 3. Each vertical rod unit 2 is also connected to a sleeve unit 4, and each sleeve unit 4 is located between the pressure plate unit 3 and the lower pressure plate unit 1. The lower pressure plate unit 1 includes a bottom plate 101, and a positioning plate 102 is fixedly connected to the middle of the top of the bottom plate 101. A lower steel pad 103 is fixedly connected to the diameter of the positioning plate 102, and the length of the lower steel pad 103 is the same as the diameter of the positioning plate 102. The vertical rod unit 2 includes a vertical rod 201, one end of which is fixedly connected to the top of the bottom plate 101 near the side, and a spring base 202 is fixedly connected to the middle of the side of the vertical rod 201. The cross section of the spring base 202 is concentric ring-shaped. The upper pressure plate unit 3 includes a top plate 301, on which two through holes 304 parallel to the axis are formed, the two through holes 304 are symmetrical, each through hole 304 is penetrated by a corresponding vertical rod 201, an upper steel pad 303 is fixedly connected to the bottom diameter of the top plate 301, the upper steel pad 303 is parallel to the lower steel pad 103, the length of the upper steel pad 303 is the same as the diameter of the top plate 301, and a pressure column 302 is fixedly connected to the middle of the top of the top plate 301. The clamping sleeve unit 4 includes a spring 403, one end of the spring 403 is clamped with the corresponding spring base 202, the other end of the spring 403 is sleeved with a circular sleeve 402 on the outside, and the other end of the circular sleeve 402 is fixedly connected with a circular arc snap ring 401.

Claims

1. A concrete impermeability test piece splitting device, characterized in that: The invention comprises a lower pressure plate unit (1), the lower pressure plate unit (1) being connected to two symmetrically distributed vertical rod units (2), the other end of the vertical rod unit (2) being connected to an upper pressure plate unit (3), each of the vertical rod units (2) being further connected to a sleeve unit (4), each of the sleeve units (4) being located between the pressure plate unit (3) and the lower pressure plate unit (1).

2. The concrete impermeability test piece splitting device according to claim 1, characterized in that: The lower pressure plate unit (1) comprises a bottom plate (101), a positioning plate (102) is fixedly connected to the middle of the top of the bottom plate (101), a lower steel pad (103) is fixedly connected to the diameter of the positioning plate (102), and the length of the lower steel pad (103) is the same as the diameter of the positioning plate (102).

3. The concrete impermeability test piece splitting device according to claim 2, characterized in that: The vertical rod unit (2) comprises a vertical rod (201), one end of the vertical rod (201) is fixedly connected to the top of the bottom plate (101) near the side surface, and a spring base (202) is fixedly connected to the middle of the side surface of the vertical rod (201), and the cross section of the spring base (202) is in the shape of a concentric ring.

4. The concrete impermeability test piece splitting device according to claim 3, characterized in that: The upper pressure plate unit (3) comprises a top plate (301), the top plate (301) is provided with two through holes (304) parallel to its axis, the two through holes (304) are symmetrical, each through hole (304) is penetrated by a corresponding vertical rod (201), an upper steel pad (303) is fixedly connected to the bottom diameter of the top plate (301), the upper steel pad (303) is parallel to the lower steel pad (103), the length of the upper steel pad (303) is the same as the diameter of the top plate (301), and a pressure column (302) is fixedly connected to the middle of the top of the top plate (301).

5. The concrete impermeability test piece splitting device according to claim 4, characterized in that: The clamping sleeve unit (4) comprises a spring (403), one end of which is clamped with a corresponding spring base (202), the outer side of the other end of the spring (403) is sleeved with a circular sleeve (402), and the other end of the circular sleeve (402) is fixedly connected with a circular arc clamping ring (401), the circular arc clamping ring (401).

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