CN219608546U - Indoor air quality acquisition device - Google Patents

Abstract

The utility model provides an indoor air quality acquisition device which comprises an extension rod, wherein the bottom of the extension rod is inserted with a base, the top of the base is connected with a sliding seat in a sliding manner, the bottom of the base is fixedly connected with a positioning rod, the front part of the positioning rod is fixedly connected with a clamping seat, the sliding seat is matched with a clamping groove of a piston handle, the piston handle of an injector is fixed, a driving motor and a screw rod are matched for working, the piston handle is pulled out in a cylinder body of the injector, the injector and an air inlet one-way valve are matched for completing air collection operation, when air collection operation is carried out on a plurality of collection points, a tester needs to replace the injector and the matched air inlet one-way valve, the replacement treatment of a storage container is not needed for indoor air collection samples in the operation flow, the problem that the samples are easy to be polluted in the process of sample transfer is avoided, the accuracy of an indoor air detection result is ensured, and the problem that the accuracy of a detection result is reduced due to air sample transfer operation of the existing equipment is solved.

Description

Indoor air quality acquisition device

Technical Field

The utility model mainly relates to the technical field of air collection, in particular to an indoor air quality acquisition device.

Background

The air collecting method is mainly used for indoor air quality detection and comprises an air collecting method and an air bag method, wherein the air collecting method can be used for sampling by using a syringe or a plastic bag which does not react with or absorb and absorb the detected pollutant, and when the syringe is used for sampling, 50 ml or 100 ml of syringe is selected for directly collecting on-site air and sealing an air inlet, so that a laboratory can perform gas chromatographic analysis.

The prior patent (publication number: CN 211504882U) discloses a sampling device for indoor air quality detection, which comprises a sampling shell, wherein a handle is fixedly connected to the middle part of the right end of the sampling shell, a sampling cavity is formed in the outer side of an inner cavity of the sampling shell, a piston block is movably inserted into the inner cavity of the sampling cavity, a push-pull rod is fixedly connected to the middle part of the right end of the piston block, the push-pull rod is movably inserted into the right side of the inner cavity of the sampling cavity, round holes are formed in the middle part of the left end of the sampling cavity, a sealing block is movably inserted into the inner part of each round hole, a screw is fixedly connected to the left end of each sealing block, the left side of each screw is inserted onto a connecting plate through threads, and the right end of each connecting plate is fixedly connected to the outer side of the left end of the sampling shell. According to the sampling device for indoor air quality detection, through the integral structure of the equipment, the equipment is more convenient to sample; through the structure that is equipped with pipeline and sealing block, can effectually seal the round hole for the sample keeps well.

In the process of realizing the scheme, the inventor aims at reducing measurement errors, controlling the problem of uncontrolled measurement uncertainty brought by a sampler in measurement sampling, and compared with the prior equipment shown in a document, the prior equipment needs a tester to manually operate to complete gas collection in gas collection operation, wherein gas stored in the sampling equipment also needs to be transferred through an injector to perform gas chromatographic analysis, and the sample is damaged due to the fact that pollution and the like are easy to occur in the transfer process of the sample, and the accuracy of a corresponding detection result is reduced.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model provides an indoor air quality acquisition device, which solves the problem that the accuracy of a detection result is reduced due to gas sample transfer operation in the existing equipment.

2. Technical proposal

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: the utility model provides an indoor air quality collection system, includes the extension rod, the bottom of extension rod is pegged graft there is the base, the top sliding connection of base has the slide, the bottom fixedly connected with locating lever of base, the anterior fixedly connected with cassette of this locating lever.

Further, the front end of the base is fixedly provided with a needle cylinder clamping groove, the front end of the base is clamped with an injector, and an air inlet at the bottom end of the injector is clamped with an air inlet one-way valve.

Further, the bottom fixedly connected with driving motor of base, driving motor's output fixedly connected with screw rod, the outside and the rear end threaded connection of slide of this screw rod.

Further, the left and right sides of the top of the base are fixedly provided with lightening holes, and the bottom end of the base is fixedly connected with a reinforcing plate.

Further, a piston handle clamping groove is formed in the front end of the sliding seat, and the front end of the sliding seat is clamped with the top of a piston handle of the injector.

Furthermore, the inner sides of the left end and the right end of the clamping seat are fixedly connected with limiting springs, and the opposite sides of the two limiting springs are fixedly connected with limiting pins.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

the utility model provides an indoor air quality acquisition device, wherein a sliding seat is matched with a clamping groove of a piston handle, the piston handle of an injector is fixed, a driving motor and a screw rod are matched for working, the piston handle is pulled out of a cylinder body of the injector, the injector and an air inlet one-way valve are matched for completing air collection operation, when air collection operation is carried out on a plurality of acquisition points, a tester needs to replace the injector and the matched air inlet one-way valve, the replacement treatment of a storage container for an indoor air acquisition sample is not needed in the operation flow, the problem that the sample is easy to be polluted in the transfer process is avoided, and the accuracy of an indoor air detection result is ensured;

the utility model provides an indoor air quality acquisition device, which is used by matching an extension rod with a base, so that a tester is prevented from entering a test area to acquire an air sample, and the problem of uncontrolled measurement uncertainty caused by intervention of the tester in an indoor air quality detection project is avoided;

none of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a perspective view of the base structure of the present utility model;

FIG. 3 is a perspective view of the carriage structure of the present utility model;

fig. 4 is a semi-cutaway perspective view of the detent lever structure of the present utility model.

Reference numerals

Extension rod-1;

a base-2; needle cylinder clamping groove-21; a syringe-22; an intake check valve-23;

a slide base-3; a piston handle clamping groove-31;

a positioning rod-4;

a clamping seat-5;

a limit spring-6;

a limiting pin-7;

a driving motor-8;

screw 9.

Detailed Description

In order that the utility model may be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which, however, the utility model may be embodied in many different forms and are not limited to the embodiments described herein, but are instead provided for the purpose of providing a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the utility model provides an indoor air quality acquisition device, which comprises an extension rod 1, wherein a base 2 is inserted at the bottom of the extension rod 1, a sliding seat 3 is connected at the top of the base 2 in a sliding manner, a positioning rod 4 is fixedly connected at the bottom of the base 2, and a clamping seat 5 is fixedly connected at the front part of the positioning rod 4.

In this embodiment, as shown in fig. 1, 2 and 3, a syringe clamping groove 21 is fixed at the front end of the base 2, an injector 22 is clamped at the front end of the base 2, and an air inlet check valve 23 is clamped at the bottom air inlet of the injector 22.

The base 2 is matched with the needle cylinder clamping groove 21 to fix the cylinder body of the injector 22, wherein the bottom of the injector 22 is matched with the air inlet one-way valve 23, so that the air inlet of the injector 22 cannot be plugged when a tester uses the extension rod 1 to match for air collection operation.

In this embodiment, as shown in fig. 1 and 3, a driving motor 8 is fixedly connected to the bottom end of the base 2, and a screw 9 is fixedly connected to the output end of the driving motor 8, and the outer side of the screw 9 is in threaded connection with the rear end of the slide base 3.

The driving motor 8 is matched with the screw rod 9 to change the working position of the sliding seat 3 on the base 2, and the driving structure is simple, reasonable and convenient to use.

In this embodiment, as shown in fig. 1 and 2, lightening holes are fixedly formed on the left and right sides of the top of the base 2, and a reinforcing plate is fixedly connected to the bottom end of the base 2.

The lightening holes are formed in the base 2, so that the structural quality of the equipment is reduced, and the overall structural strength of the base 2 is ensured by matching with the reinforcing plate for working.

In this embodiment, as shown in fig. 1 and 3, a piston stem clamping groove 31 is fixed at the front end of the sliding base 3, and the front end of the sliding base 3 is clamped with the top of the piston stem of the injector 22.

The sliding seat 3 is matched with the piston handle clamping groove 31 to fix the piston handle of the injector 22, the matched driving motor 8 and the screw 9 work to complete the extraction of the piston handle in the cylinder body of the injector 22, and the injector 22 and the air inlet one-way valve 23 are matched to complete the air collecting operation.

In this embodiment, as shown in fig. 1 and 4, the inner sides of the left end and the right end of the card seat 5 are fixedly connected with limiting springs 6, and opposite sides of the two limiting springs 6 are fixedly connected with limiting pins 7.

The clamping seat 5, the limiting spring 6 and the limiting pin 7 are matched to fix the cylinder body of the injector 22, so that the gas collecting operation failure caused by the deviation of the injector 22 when the sliding seat 3 drives the piston handle to move is avoided.

When the gas collecting operation is carried out on a plurality of collecting points, a tester needs to replace the injector 22 and the matched air inlet one-way valve 23, and the replacement treatment of a storage container for an indoor air collecting sample is not needed in the operation flow, so that the problem that the sample is easy to pollute in the transferring process is avoided, and the accuracy of an indoor gas detection result is ensured.

The cooperation of extension rod 1 and base 2 is used, avoids the tester to get into the test area and gathers the air sample, avoids the problem that the measurement uncertainty that the intervention of tester in indoor air quality detection project brought is uncontrolled.

The foregoing examples merely illustrate certain embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the concept of the utility model, all of which fall within the scope of protection of the utility model; accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (5)

1. An indoor air quality collection system, its characterized in that: the novel telescopic device comprises an extension rod (1), wherein a base (2) is inserted into the bottom of the extension rod (1), a sliding seat (3) is connected to the top of the base (2) in a sliding manner, a positioning rod (4) is fixedly connected to the bottom of the base (2), and a clamping seat (5) is fixedly connected to the front part of the positioning rod (4);

the front end of the sliding seat (3) is fixedly provided with a piston handle clamping groove (31), and the front end of the sliding seat (3) is clamped with the top of a piston handle of the injector (22).

2. An indoor air quality acquisition device according to claim 1, wherein: the front end of the base (2) is fixedly provided with a needle cylinder clamping groove (21), the front end of the base (2) is clamped with an injector (22), and an air inlet check valve (23) is clamped at the bottom end air inlet of the injector (22).

3. An indoor air quality acquisition device according to claim 1, wherein: the bottom fixedly connected with driving motor (8) of base (2), the output fixedly connected with screw rod (9) of driving motor (8), the outside and the rear end threaded connection of slide (3) of this screw rod (9).

4. An indoor air quality acquisition device according to claim 1, wherein: the weight reducing holes are fixedly formed in the left side and the right side of the top of the base (2), and the bottom end of the base (2) is fixedly connected with a reinforcing plate.

5. An indoor air quality acquisition device according to claim 1, wherein: limiting springs (6) are fixedly connected to the inner sides of the left end and the right end of the clamping seat (5), and limiting pins (7) are fixedly connected to the opposite sides of the two limiting springs (6).