Detection equipment for pollutants released by concrete

Abstract

The utility model discloses detection equipment for pollutants released by concrete, and relates to the technical field of concrete detection equipment. The detection equipment for the pollutants released by the concrete comprises a frame which is enclosed into a cube or cuboid shape, the frame comprises a plurality of telescopic rods which are connected end to end, a sealing sleeve which is unfolded or folded along with the telescopic rods is arranged outside the frame in a covering mode, and the sealing sleeve is provided with a gas sampling nozzle which is detachably connected with an exhaust pipe. The sealing sleeve is further provided with an opening and closing door used for taking and placing concrete raw materials. When negative pressure is generated, the telescopic rod shrinks, the internal space of the detection equipment for the pollutants released by the concrete is reduced, the influence of the negative pressure is reduced, and the beneficial effects of accurate extracted gas volume, effective detection result, convenience in equipment storage and low cost are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete testing equipment, specifically to a testing device for detecting pollutants released from concrete. Background Technology

[0002] Concrete construction has permeated all aspects of life; buildings, roads, bridges, and more all rely on concrete. Concrete slowly releases gases, some of which may contain pollutants harmful to human health. Therefore, before concrete is poured and formed, the concentration and composition of these pollutants in the air must be tested. This allows for timely adjustments to the concrete mix design or replacement of raw materials, ensuring better protection of human health.

[0003] Current testing methods typically involve placing concrete raw materials in a sealed box, extracting the gas from the box after a period of time, and then testing the extracted gas. However, because the box is sealed, the negative pressure created after extraction makes it difficult to continue extracting the remaining gas. Incomplete gas extraction can even lead to significant errors in the test results.

[0004] Therefore, existing technologies need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology is difficult to extract gas and the detection structure is prone to large errors. The purpose is to provide a detection device for pollutants released from concrete, which adopts corresponding technical means and has the beneficial effects of easier gas extraction and more accurate detection results.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a detection device for pollutants released from concrete, which includes a frame formed into a cube or cuboid shape. The frame includes multiple telescopic rods connected end to end. The frame is covered with a sealing sleeve that unfolds or folds with the telescopic rods. The sealing sleeve is provided with a gas sampling nozzle that is detachably connected to an extraction pipe. The sealing sleeve is also provided with a door for taking out and putting in concrete raw materials.

[0008] In the above technical solution, concrete raw materials are placed inside the detection equipment for pollutants released from concrete. A sealing sleeve encloses the concrete raw materials, keeping the gas released from the concrete within the sealing sleeve to prevent leakage. When extraction is needed, the extraction pipe of the vacuum pump is connected to the gas sampling nozzle, and the vacuum pump draws the gas from inside the sealing sleeve into a designated container. As gas is continuously extracted, the telescopic rod shortens, and the sealing sleeve is folded, thus reducing the internal space of the sealing sleeve to correspond to the negative pressure changes generated after gas extraction. This ensures easy and accurate gas extraction, resulting in more accurate detection results.

[0009] Furthermore, in this invention, the edge of the aforementioned switch door is provided with a sealing zipper that connects to the sealing sleeve.

[0010] Furthermore, in this utility model, the telescopic rod includes a sleeve, into which a telescopic tube is inserted.

[0011] Furthermore, in this invention, a connecting pipe is provided at the end of the telescopic tube away from the sleeve.

[0012] Furthermore, in this invention, the diameter of the connecting tube is the same as the diameter of the sleeve.

[0013] Furthermore, in this invention, a collar is provided inside the sealing sleeve, and the collar is connected to the telescopic rod.

[0014] Furthermore, in this invention, the collar connected to the telescopic rod is configured as a rigid collar.

[0015] Furthermore, in this invention, the frame also includes a tee connector having a socket for inserting the end of the telescopic rod.

[0016] Furthermore, in this utility model, the aforementioned three-way connector is threadedly connected to the telescopic rod, and the port of the gas sampling nozzle is threadedly connected with a cap.

[0017] Furthermore, in this invention, the sealing sleeve is configured as an Oxford cloth sealing sleeve, and the surface of the Oxford cloth sealing sleeve is provided with a PVC sealing coating.

[0018] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0019] 1. Easier Gas Extraction: Multiple telescopic rods connected end-to-end in a cube or cuboid shape can extend and retract. As the rods shorten, the cube or cuboid shape shrinks, and the sealing sleeve folds down, reducing its internal volume. When extraction is needed, connect the extraction tube of the vacuum pump to the gas sampling nozzle. The vacuum pump then draws the gas from the sealing sleeve into a designated container. As gas is continuously extracted, the telescopic rods shorten, and the sealing sleeve folds down, further reducing the internal space to accommodate the negative pressure changes generated during gas extraction. This makes extraction easier and ensures more accurate gas volume extraction.

[0020] 2. More accurate detection: Because the volume of the detection equipment for pollutants released from concrete can be varied, gas extraction is easier and does not generate significant negative pressure, allowing for the complete removal of gas from the sealed enclosure. This results in more accurate concentration calculations.

[0021] 3. Convenient storage: The frame can be disassembled after the experiment is completed, and the outer sealing sleeve can be folded for storage, saving experimental space. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the external appearance of a detection device for pollutants released from concrete according to this utility model.

[0024] Figure 2 This is a frontal cross-sectional view of the telescopic rod and collar of this utility model;

[0025] Figure 3 This is a side cross-sectional view of the telescopic rod and collar of this utility model;

[0026] Figure 4 This is a schematic diagram showing the connection between the telescopic rod and the tee connector of this utility model;

[0027] Figure 5 This is a cross-sectional schematic diagram of the telescopic rod of this utility model.

[0028] The attached diagram shows the markings and corresponding component names: 1-telescopic rod, 101-sleeve, 102-telescopic tube, 103-connecting tube, 2-tee connector, 3-sealing zipper, 4-sealing sleeve, 401-ring, 5-gas sampling nozzle, 6-opening door. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only for explaining the present utility model and are not intended to limit the present utility model. The following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the present utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1

[0032] This embodiment 1 provides a detection device for pollutants released from concrete, combined with Figures 1 to 5 As shown, the specific structure is described below.

[0033] Combination Figure 1 and Figure 2 The concrete pollutant detection device of this embodiment mainly consists of two parts: a frame and a sealing sleeve 4. The frame is used to support the sealing sleeve 4 in the shape of a cube or cuboid, so that the interior of the sealing sleeve 4 has a space to accommodate concrete raw materials and released gas. The sealing sleeve 4 is used to wrap the frame, so that the interior forms a sealed space to prevent gas leakage.

[0034] In some implementations of this embodiment, combined with Figure 1 and Figure 4 As shown, the cube or cuboid frame is composed of twelve telescopic rods 1 connected end to end. The telescopic rods 1 are fixedly connected to each other by a T-joint 2. The frame can be enlarged or reduced by the telescopic function of the telescopic rods 1.

[0035] Furthermore, in combination Figure 1 and Figure 5As shown, the telescopic rod 1 comprises three parts: a sleeve 101, a telescopic tube 102, and a connecting tube 103. The left end of the telescopic tube 102 is inserted into the groove at the right end of the connecting tube 103 and fixed by adhesive bonding. The sleeve 101 has a cavity inside for the telescopic tube 102 to be inserted, allowing the telescopic tube 102 to move left and right along the cavity, thereby extending and shortening the telescopic rod 1.

[0036] Furthermore, combining Figure 1 and Figure 4 As shown, the tee connector 2 has three mutually perpendicular sockets. The sleeve 101 or the connecting tube 103 is inserted into the sockets of the tee connector 2 to achieve connection. The diameter of the connecting tube 103 is the same as the diameter of the sleeve 101, so the three sockets of the tee connector 2 are of the same size, which is conducive to standardized production and processing, reduces the processing cost of the tee connector 2, and improves the versatility of the tee connector 2.

[0037] It should be noted that, in order to achieve a stable connection between the tee connector 2 and the telescopic rod 1, the socket of the tee connector 2 has an internal thread, and the end of the connecting pipe 103 or sleeve 101 has an external thread. The tee connector 2 is threadedly connected to the connecting pipe 103 or sleeve 101. The connection is very convenient and relatively stable.

[0038] In some embodiments of this example, the sealing sleeve 4 is also rectangular or square in shape. The sealing sleeve 4 is made of Oxford cloth, which is sturdy and durable. A PVC sealing coating is applied to the surface of the Oxford cloth sealing sleeve to achieve a sealing effect. Combined with... Figure 1 , Figure 2 and Figure 3 As shown, the sealing sleeve 4 covers the outside of the frame. Several collars 401 are fixedly connected to the inner wall of the sealing sleeve 4. The collars 401 can be made of aluminum alloy to form rigid collars for easy sliding. The collars 401 and the sealing sleeve 4 can be fixedly connected by wire binding. The collars 401 are fitted onto the telescopic rod 1, and five collars 401 are evenly distributed on one telescopic rod 1. The sealing sleeve 4 and the frame are connected by the collars 401.

[0039] Furthermore, such as Figure 1 As shown, a door 6 is provided on the front of the sealing sleeve 4, and a sealing zipper 3 connected to the sealing sleeve 4 is provided along the edge of the door 6. The sealing zipper 3 adopts the airtight zipper of the prior art. When the sealing zipper 3 is opened, the door 6 can be lifted to facilitate the insertion or removal of concrete raw materials. When the sealing zipper 3 is closed, it provides a sealing function to prevent gas leakage.

[0040] like Figure 1As shown, a gas sampling nozzle 5 is installed on the front of the sealing sleeve 4. A cap is threadedly connected to the port of the gas sampling nozzle 5 to seal it. When evacuation is required, the cap is opened on the gas sampling nozzle 5, and then the evacuation tube is connected to the gas sampling nozzle 5.

[0041] The working principle of the concrete pollutant release detection device of this invention is as follows:

[0042] The concrete raw materials are placed inside the detection equipment for pollutants released from the concrete. A sealing sleeve 4 encloses the concrete raw materials, keeping the released gas inside the sealing sleeve 4 to prevent leakage. When extraction is needed, the extraction pipe of the vacuum pump is connected to the gas sampling nozzle 5, and the vacuum pump draws the gas from inside the sealing sleeve 4 into a designated container. As the gas is continuously extracted, the telescopic rod 1 shortens, and the sealing sleeve 4 is folded, thus reducing the internal space of the sealing sleeve 4 to correspond to the negative pressure changes generated after gas extraction. This facilitates easy extraction, ensures accurate volume extraction, and results in more accurate and effective test results.

[0043] In summary, this utility model provides a detection device for pollutants released from concrete, comprising a frame formed into a cube or cuboid shape. The frame includes multiple telescopic rods 1 connected end-to-end. A sealing sleeve 4 covers the outside of the frame, unfolding or folding with the telescopic rods 1. The sealing sleeve 4 is equipped with a gas sampling nozzle 5 detachably connected to an extraction pipe. The sealing sleeve 4 also has a switch door 6 for handling concrete raw materials. A sealing zipper 3 connected to the sealing sleeve 4 is provided along the edge of the switch door 6. The telescopic rod 1 includes a sleeve 101, into which a telescopic tube 102 is inserted. A connecting tube 103 is provided at the end of the telescopic tube 102 away from the sleeve 101. The diameter of the connecting tube 103 is the same as the diameter of the sleeve 101. A collar 401 is provided inside the sealing sleeve 4, and the collar 401 is connected to the telescopic rod 1. The collar 401 connected to the telescopic rod 1 is configured as a rigid collar 401. The frame also includes a tee connector 2, which has a socket for inserting the end of the telescopic rod 1. The three-way connector 2 is threadedly connected to the telescopic rod 1, and the port of the gas sampling nozzle 5 is threadedly connected to a cap. The sealing sleeve 4 is configured as an Oxford cloth sealing sleeve 4, and the surface of the Oxford cloth sealing sleeve 4 is provided with a PVC sealing coating. Therefore, the concrete release pollutant detection equipment provided by this utility model has the advantages of accurate detection results, convenient equipment storage, and low cost.

[0044] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A detection device for pollutants released from concrete, characterized in that, The frame includes a cube or cuboid shape, the frame includes multiple telescopic rods (1) connected end to end, the frame is covered with a sealing sleeve (4) that unfolds or folds with the telescopic rods (1), the sealing sleeve (4) is provided with a gas sampling nozzle (5) that is detachably connected to the air extraction pipe, and the sealing sleeve (4) is also provided with a door (6) for taking out and putting in concrete raw materials.

2. The detection device for pollutants released from concrete according to claim 1, characterized in that, The edge of the switch door (6) is provided with a sealing zipper (3) that connects to the sealing sleeve (4).

3. The detection device for pollutants released from concrete according to claim 1, characterized in that, The telescopic rod (1) includes a sleeve (101) into which a telescopic tube (102) is inserted.

4. The detection device for pollutants released from concrete according to claim 3, characterized in that, A connecting pipe (103) is provided at the end of the telescopic tube (102) away from the sleeve (101).

5. The detection device for pollutants released from concrete according to claim 4, characterized in that, The diameter of the connecting pipe (103) is the same as the diameter of the sleeve (101).

6. The detection device for pollutants released from concrete according to claim 1, characterized in that, The sealing sleeve (4) is provided with a collar (401) inside, and the collar (401) is connected to the telescopic rod (1).

7. The detection device for pollutants released from concrete according to claim 6, characterized in that, The collar (401) connected to the telescopic rod (1) is configured as a rigid collar.

8. The detection device for pollutants released from concrete according to claim 1, characterized in that, The frame also includes a tee connector (2) having a socket for inserting the end of the telescopic rod (1).

9. The detection device for pollutants released from concrete according to claim 8, characterized in that, The three-way connector (2) is threadedly connected to the telescopic rod (1), and the port of the gas sampling nozzle (5) is threadedly connected with a cap.

10. The detection device for pollutants released from concrete according to any one of claims 1-9, characterized in that, The sealing sleeve (4) is configured as an Oxford cloth sealing sleeve, and the surface of the Oxford cloth sealing sleeve is provided with a PVC sealing coating.

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