Construction site environment detection equipment

Abstract

The utility model discloses construction site environment detection equipment, and relates to the technical field of environment detection. The construction site environment detection equipment comprises a supporting rod, a detector, an air pump and a sampling barrel, the sampling barrel is installed at the upper end of the detector through a support, a barrel sleeve is arranged outside the sampling barrel in a rotating mode, a gear ring is fixedly arranged at the top end of the barrel sleeve, the side end of the gear ring is meshed with a driving gear, and the driving gear is meshed with the air pump. A piston barrel is arranged in the sampling barrel in a lifting mode, one end of the air pump is connected with the piston barrel through an air guide pipe, the other end of the air pump is connected with the detector through an air guide pipe, and sealing rings are symmetrically installed outside the piston barrel up and down. In order to overcome the defect that the detection result is inaccurate due to exposure of the sampling hole, the sampling hole is sealed through the cylinder sleeve, air at different heights is prevented from being mixed into the air inlet hole when the piston cylinder is adjusted, and the detection precision of the detector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection, in particular to an environmental detection device for construction sites. Background Technique

[0002] In order to ensure whether the construction environment quality of a construction site meets safety standards and environmental protection requirements, it is necessary to detect the air quality on site. Chinese Patent CN202322226477.9 proposes an air detection device for environmental protection, which solves the problem that existing detection devices cannot collect air samples at different heights, resulting in a single air detection height and collected samples at the construction site, and unable to comprehensively detect the overall air environment quality of the construction site. However, this detection device still has the following defects:

[0003] Since all sampling holes are exposed, when the piston cylinder moves up and down, the air inlet hole will pass through sampling holes at different heights. At this time, air at different heights will still enter the air inlet hole along the sampling holes, resulting in inaccurate detection results.

[0004] Therefore, in order to solve the defect that the exposure of the sampling hole leads to inaccurate detection results, it is very necessary to propose an environmental detection device for construction sites. Content of the Utility Model

[0005] The purpose of the utility model is to provide an environmental detection device for construction sites, which seals the sampling holes through a barrel sleeve to prevent air at different heights from mixing into the air inlet hole when adjusting the piston cylinder, and improves the detection accuracy of the detector, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An environmental detection device for construction sites includes a support rod, a detector, an air pump and a sampling cylinder. The sampling cylinder is installed at the upper end of the detector through a bracket. A barrel sleeve is rotatably arranged outside the sampling cylinder. A gear ring is fixedly arranged at the top of the barrel sleeve, and a driving gear is meshed with the side end of the gear ring;

[0008] A piston cylinder is arranged to move up and down inside the sampling cylinder. One end of the air pump is connected to the piston cylinder through a conduit, and the other end is connected to the detector through a conduit. Sealing rings are symmetrically installed up and down outside the piston cylinder.

[0009] Preferably, sampling holes are equidistantly arranged up and down on the surface of the sampling cylinder. There are six sampling holes at the same height, and they are arranged in a circular array around the center of the sampling cylinder.

[0010] Preferably, the barrel sleeve is transparent, and strip-shaped holes are arranged in a circular array on its surface.

[0011] Preferably, an air inlet hole corresponding to the position of the sampling hole is formed on the surface of the piston cylinder.

[0012] Preferably, an electric telescopic rod and a motor are fixedly installed at the top of the bracket. The output end of the electric telescopic rod is fixedly connected to the piston cylinder, and the output end of the motor is fixedly connected to the driving gear.

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

[0014] In this construction site environmental detection device, by arranging a rotating sleeve outside the sampling cylinder, the sampling hole can be sealed when not sampling, effectively preventing air at different heights from mixing into the air inlet hole through the sampling hole during the lifting and lowering process of the piston cylinder, thereby significantly improving the detection accuracy of the detector. The sleeve is set to be transparent so that the operator can intuitively observe the position of the piston cylinder inside the sampling cylinder, facilitating the lifting and adjustment of the piston cylinder to achieve sampling of air at different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural plan view of the present utility model;

[0016] Figure 2 is the internal structural diagram of the sampling cylinder of the present utility model;

[0017] Figure 3 is the connection schematic diagram of the sampling cylinder and the sleeve of the present utility model.

[0018] In the figure: 1, support rod; 2, detector; 21, bracket; 3, air pump; 4, sampling cylinder; 41, sampling hole; 5, sleeve; 51, gear ring; 52, strip hole; 6, piston cylinder; 61, sealing ring; 62, air inlet hole; 7, air duct; 8, electric telescopic rod; 9, motor; 91, driving gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] To solve the technical problem of how to seal the sampling hole, please refer to Figures 1-3 , the following technical solutions are provided in this embodiment:

[0021] A construction site environment detection device includes a support rod 1, a detector 2, an air pump 3 and a sampling tube 4. The sampling tube 4 is installed on the upper end of the detector 2 through a bracket 21. A tube sleeve 5 is rotatably provided outside the sampling tube 4. A gear ring 51 is fixedly provided on the top of the tube sleeve 5. A driving gear 91 is meshed with the side end of the gear ring 51. A motor 9 is fixedly installed on the top of the bracket 21. The output end of the motor 9 is fixedly connected to the driving gear 91.

[0022] The sampling tube 4 has sampling holes 41 equidistantly formed on its surface. Six sampling holes 41 are arranged at the same height and are distributed in a circular array about the center of the sampling tube 4. The tube sleeve 5 is transparent and has strip holes 52 formed in a circular array on its surface.

[0023] Specifically, when sampling is not needed, the motor 9 is started to drive the driving gear 91 to rotate, and the driving gear 91 drives the gear ring 51 meshing with it to rotate, and the gear ring 51 then drives the tube sleeve 5 fixedly connected to it to rotate until the strip hole 52 is offset from the sampling hole 41. At this time, the sampling hole 41 is sealed by the tube sleeve 5, and outside air cannot enter the sampling tube 4 from the sampling hole 41.

[0024] The purpose of setting the cylinder sleeve 5 to be transparent is to facilitate the operator to visually observe the position of the piston cylinder 6 in the sampling cylinder 4 from the sampling hole 41, which helps the operator to lift and adjust the piston cylinder 6.

[0025] To solve the technical problem of how the detector samples air at different altitudes, please refer to Figures 1-3 , this embodiment provides the following technical solutions:

[0026] A piston cylinder 6 is provided in the sampling cylinder 4 for lifting and lowering. One end of the air pump 3 is connected to the piston cylinder 6 through an air guide tube 7, and the other end is connected to the detector 2 through the air guide tube 7. A sealing ring 61 is symmetrically installed on the upper and lower sides of the piston cylinder 6. An air inlet hole 62 corresponding to the position of the sampling hole 41 is opened on the surface of the piston cylinder 6.

[0027] An electric telescopic rod 8 is fixedly mounted on the top of the bracket 21 , and an output end of the electric telescopic rod 8 is fixedly connected to the piston cylinder 6 .

[0028] Specifically, the sampling hole 41 is first sealed with the tube sleeve 5, and then the electric telescopic rod 8 is started. The electric telescopic rod 8 drives the piston tube 6 to rise and fall in the sampling tube 4 until the air inlet 62 is aligned with the sampling hole 41 at the required height, and then the motor 9 is started to rotate the tube sleeve 5 to open the sampling hole 41, and the air pump 3 is started. The air at this height enters the piston tube 6 from the sampling hole 41 and the air inlet 62, and then passes through the air guide tube 7 and the air pump 3, and finally enters the detector 2 for detection.

[0029] The outer wall of the sealing ring 61 can fit tightly against the inner wall of the sampling tube 4 to prevent the air at different heights in the sampling tube 4 from mixing into the air inlet 62, thereby ensuring that the collected air sample is not contaminated.

[0030] Working principle: Before sampling, the construction site environment detection equipment starts the motor 9 to drive the driving gear 91 to rotate, and the driving gear 91 drives the gear ring 51 meshing with it to rotate, and the gear ring 51 then drives the sleeve 5 fixedly connected to it to rotate until the strip hole 52 is offset from the sampling hole 41. At this time, the sampling hole 41 is sealed by the sleeve 5, and the outside air cannot enter the sampling tube 4 from the sampling hole 41. Then start the electric telescopic rod 8, and the electric telescopic rod 8 drives the piston cylinder 6 to rise and fall in the sampling tube 4 until the air inlet 62 is aligned with the sampling hole 41 at the required height. Then start the motor 9 to rotate the sleeve 5, so that the sampling hole 41 is opened, and start the air pump 3. The air at this height enters the piston cylinder 6 from the sampling hole 41 and the air inlet 62, and then passes through the air guide pipe 7 and the air pump 3, and finally enters the detector 2 for detection.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction site environment detection device, comprising a support rod (1), a detector (2), an air pump (3) and a sampling tube (4), characterized in that: The sampling tube (4) is mounted on the upper end of the detector (2) via a bracket (21); a tube sleeve (5) is rotatably provided outside the sampling tube (4); a gear ring (51) is fixedly provided at the top end of the tube sleeve (5); a driving gear (91) is meshed at the side end of the gear ring (51); A piston cylinder (6) is provided in the sampling cylinder (4) for lifting and lowering. One end of the air pump (3) is connected to the piston cylinder (6) via an air guide tube (7), and the other end is connected to the detector (2) via the air guide tube (7). A sealing ring (61) is symmetrically installed on the outside of the piston cylinder (6).

2. A construction site environment detection device according to claim 1, characterized in that: The sampling cylinder (4) is provided with sampling holes (41) equidistantly spaced from top to bottom on its surface, and six sampling holes (41) are provided at the same height and are distributed in a circular array about the center of the sampling cylinder (4).

3. A construction site environment detection device according to claim 2, characterized in that: The sleeve (5) is transparent, and a circular array of strip-shaped holes (52) is formed on its surface.

4. A construction site environment detection device according to claim 1, characterized in that: The piston cylinder (6) is provided with an air inlet hole (62) corresponding to the position of the sampling hole (41) on the surface.

5. The construction site environment detection device according to claim 1, characterized in that: An electric telescopic rod (8) and a motor (9) are fixedly mounted on the top end of the bracket (21); the output end of the electric telescopic rod (8) is fixedly connected to the piston cylinder (6), and the output end of the motor (9) is fixedly connected to the driving gear (91).

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