Slurry detection device for underground diaphragm wall

Abstract

The utility model discloses an underground diaphragm wall mud detection device which comprises a butterfly valve, one end of the butterfly valve is in threaded connection with a transparent taper pipe, the other end of the butterfly valve is in threaded connection with an upper protective cylinder, and a filtering mechanism is arranged on the inner wall of the upper protective cylinder. Calibrated mud is taken and put into the transparent taper pipe, then the butterfly valve and the upper protective cylinder are installed, quantitative clear water is added into the transparent taper pipe from the funnel, shaking is conducted, the transparent taper pipe is inclined, turbid liquid is poured out from the upper protective cylinder through the filter screen, the butterfly valve is closed, quantitative clear water is added again, the butterfly valve is opened, pouring and filtering are conducted again, and the operation is repeated for multiple times. And finally, opening the butterfly valve, adding quantitative clear water from the upper part of the upper protective cylinder, flushing the sand attached to the filter screen into the transparent conical pipe, standing, and observing the scale number occupied by the sand through the scale marks to judge whether the sand content in the slurry is qualified, so that compared with the prior art, the measuring process is simplified, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mud detection, in particular to a mud detection device for diaphragm walls. Background Art

[0002] The sand content rate of mud is the volume percentage of sand and clay particles contained in the mud. There are two common test methods: one is the measuring cup method commonly used in Chinese specifications; the other is the sieving method commonly used abroad, that is, using a 200-mesh small sieve mesh, after sieving the particles larger than 74μm, measuring and calculating their volume to obtain the sand content rate. There is a direct relationship between the sand content rate of mud and the specific gravity. When the specific gravity is large, the sand content rate is also high; the settling velocity of particles in the mud is an exponential relationship. The settling velocity of particles in the mud increases with the increase of the particle diameter and decreases with the increase of the specific gravity of the mud; in the previous detection tools, during measurement, it is necessary to repeatedly disassemble and assemble the transparent conical tube and the filter screen, add water for filtration, and the operation is relatively complicated, affecting the detection efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a mud detection device for diaphragm walls is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A mud detection device for diaphragm walls includes a butterfly valve. One end of the butterfly valve is threadedly connected to a transparent conical tube, and the other end is threadedly connected to an upper casing. A filtering mechanism is arranged on the inner wall of the upper casing. A water injection mechanism is arranged on the side wall of the transparent conical tube. Scale lines are arranged along the length direction of the transparent conical tube. A stopping mechanism is arranged on the butterfly valve.

[0006] Preferably, the filtering mechanism includes a filter screen connected to the inner wall of the upper casing. The filter screen is a conical structure, and its conical part faces the transparent conical tube.

[0007] Preferably, the stopping mechanism includes a valve handle connected to the valve stem of the butterfly valve. A stopping handle is rotatably connected to the valve handle. An elastic member is arranged between the stopping handle and the valve handle. A toothed disc is arranged on the side wall of the butterfly valve. A stopping tooth head corresponding to the toothed disc is arranged at the end of the stopping handle.

[0008] Preferably, the water injection mechanism includes a connecting pipe communicated with the transparent conical tube. The upper end of the connecting pipe is connected with a funnel.

[0009] Preferably, sealing covers are arranged at the ends of the funnel and the upper casing.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the present utility model, the calibrated slurry is put into a transparent conical tube, and then a butterfly valve and an upper casing are installed. Quantitative clear water is added to the transparent conical tube from a funnel. After shaking, the transparent conical tube is tilted, and the turbid liquid is poured out through the filter screen from the upper casing. The butterfly valve is closed, and quantitative clear water is added again. The butterfly valve is opened, and the filtration is carried out again by pouring. This is repeated several times until the water in the transparent conical tube becomes clear. Finally, the butterfly valve is opened, and quantitative clear water is added from above the upper casing, and the sand and gravel attached to the filter screen are washed into the transparent conical tube. After standing, the sand content rate in the slurry is judged whether it is qualified by observing the scale number occupied by the sand and gravel through the scale line. Compared with the past, the measurement process is simplified and the efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more specifically and intuitively illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the attached drawings required for use in the description of the embodiments or the prior art.

[0012] Figure 1 Structural schematic diagram proposed by the present utility model Figure 1 ;

[0013] Figure 2 Structural schematic diagram proposed by the present utility model Figure 2 ;

[0014] Figure 3 Structural schematic diagram of the upper casing and the filter screen proposed by the present utility model;

[0015] Figure 4 Structural schematic diagram of the butterfly valve proposed by the present utility model.

[0016] In the figure: transparent conical tube 1, connecting tube 2, butterfly valve 3, valve handle 31, stop handle 32, gear disc 33, stop tooth head 34, funnel 4, upper casing 5, filter screen 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached 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.

[0018] Referring to Figures 1-4 , an underground diaphragm wall slurry detection device includes a butterfly valve 3. One end of the butterfly valve 3 is threadedly connected to a transparent conical tube 1, and the other end is threadedly connected to an upper casing 5. A filtering mechanism is arranged on the inner wall of the upper casing 5. A water injection mechanism is arranged on the side wall of the transparent conical tube 1. Scale lines are arranged along the length direction of the transparent conical tube 1. A stop mechanism is arranged on the butterfly valve 3.

[0019] Put the calibrated mud into the transparent conical tube 1, then install the butterfly valve 3 and the upper casing 5. Add a certain amount of clear water into the transparent conical tube 1 from the funnel 4. After shaking, tilt the transparent conical tube 1 and pour out the turbid liquid from the upper casing 5 through the filter screen 6. Close the butterfly valve 3, add a certain amount of clear water again, open the butterfly valve 3, and pour and filter again. Repeat several times until the water in the transparent conical tube 1 becomes clear. Finally, open the butterfly valve 3 and add a certain amount of clear water from above the upper casing 5 to wash the sand and gravel attached to the filter screen 6 into the transparent conical tube 1. After standing, observe the scale quantity occupied by the sand and gravel through the scale line to judge whether the sand content rate in the mud is qualified. Compared with the past, the measurement process is simplified and the efficiency is improved.

[0020] In this embodiment, the filtering mechanism includes a filter screen 6 connected to the inner wall of the upper casing 5. The filter screen 6 is of a conical structure, and its conical part faces the transparent conical tube 1.

[0021] In this embodiment, the stopping mechanism includes a valve handle 31 connected to the valve stem of the butterfly valve 3. A stopping handle 32 is rotatably connected to the valve handle 31. An elastic member is arranged between the stopping handle 32 and the valve handle 31. A toothed disc 33 is arranged on the side wall of the butterfly valve 3, and a stopping tooth head 34 corresponding to the toothed disc 33 is arranged at the end of the stopping handle 32 to fix the opening and closing state of the butterfly valve 3.

[0022] In this embodiment, the water injection mechanism includes a connecting pipe 2 communicated with the transparent conical tube 1. The upper end of the connecting pipe 2 is connected with a funnel 4 for convenient water addition.

[0023] In this embodiment, sealing covers are arranged at the ends of the funnel 4 and the upper casing 5. After cleaning and preparing for use, cover the sealing covers to ensure the cleanliness inside.

[0024] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An underground diaphragm wall mud detection device, including a butterfly valve (3), characterized in that, One end of the butterfly valve (3) is threadedly connected to a transparent conical tube (1), and the other end is threadedly connected to an upper protective cylinder (5). A filtering mechanism is provided on the inner wall of the upper protective cylinder (5), a water injection mechanism is provided on the side wall of the transparent conical tube (1), scale lines are provided along the length direction of the transparent conical tube (1), and a stopping mechanism is provided on the butterfly valve (3).

2. The slurry detection device for diaphragm wall according to claim 1, wherein, The filtering mechanism includes a filter screen (6) connected to the inner wall of the upper protective cylinder (5). The filter screen (6) is of a conical structure, and its conical part is arranged towards the transparent conical tube (1).

3. The slurry detection device for diaphragm wall according to claim 2, characterized in that, The stopping mechanism includes a valve handle (31) connected to the valve stem of the butterfly valve (3). A stopping handle (32) is rotatably connected to the valve handle (31). An elastic member is provided between the stopping handle (32) and the valve handle (31). A toothed disc (33) is provided on the side wall of the butterfly valve (3), and a stopping tooth head (34) corresponding to the toothed disc (33) is provided at the end of the stopping handle (32).

4. The slurry detection device for diaphragm wall according to claim 3, characterized in that, The water injection mechanism includes a connecting pipe (2) communicated with the transparent conical tube (1). The upper end of the connecting pipe (2) is connected to a funnel (4).

5. The slurry detection device for diaphragm wall according to claim 4, characterized in that, Sealing covers are provided at the ends of the funnel (4) and the upper protective cylinder (5).

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