CN219831008U

CN219831008U - Calibrating device of detector

Info

Publication number: CN219831008U
Application number: CN202320812799.9U
Authority: CN
Inventors: 黄嘉�; 杨月龙; 于耀辉
Original assignee: Tianjin Genee Technology Co ltd
Current assignee: Tianjin Genee Technology Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-10-13
Anticipated expiration: 2033-04-13

Abstract

The utility model discloses a calibrator of a detector, which comprises a detector main body and a calibration structure, wherein the calibration structure comprises a mounting shell, the detector main body is mounted on the upper side of the mounting shell, a calibration cavity is arranged in the mounting shell, an exhaust port is arranged on one side of the top of the calibration cavity, an exhaust joint is mounted in the exhaust port, a plurality of guide plates distributed in a staggered manner are arranged in the calibration cavity, the bottom of the calibration cavity is connected with a damping seat through threads, a slow flow cavity is arranged in the damping seat, guide posts are uniformly mounted on the bottom of the slow flow cavity in a cross shape, a limiting plate is mounted on the top of the guide post, a baffle is slidably mounted on the guide posts, the baffle is slidably mounted in the slow flow cavity, the damping seat is provided with an air inlet at the bottom of the slow flow cavity, the air inlet is communicated with the slow flow cavity, the bottom of the outer side of the damping seat is connected with a fixing seat through threads, the bottom of the fixing seat is provided with an air inlet joint, and the air inlet joint is communicated with the air inlet.

Description

Calibrating device of detector

Technical Field

The utility model belongs to the technical field of gas detection, and particularly relates to a calibrator of a detector.

Background

The gas detection meter is an instrument for detecting gas leakage concentration, and comprises: portable gas detector, hand-held gas detector, stationary gas detector, on-line gas detector, etc. The gas sensor is mainly used for detecting the gas types in the environment, and is used for detecting the components and the content of the gas, so that the atmospheric pollution is more serious along with the development of social industrialization, and the application field of corresponding gas detection equipment is more and more extensive. The diffusion type portable gas detector is popular with consumers because of small volume, light weight, low cost, simple operation and the like. Meanwhile, due to the complex environment for detecting the gas, the gas detector needs to be calibrated after being used for a period of time. The calibration is carried out without the calibrator, and the calibration process generally judges whether the instrument is qualified for calibration according to the concentration of the standard gas and the accuracy and stability of the display numerical value of the corresponding instrument, so that the design of the calibrator not only indirectly determines the calibration accuracy, but also improves the working efficiency of the calibration operators; however, when the existing calibrator performs calibration, the following technical problems exist: when the standard gas with high concentration and high pressure is detected, the flow speed of the gas to be detected in the calibration structure is too fast, so that the inaccuracy of a measurement result is caused, the measurement precision of the detector is influenced, and the working reliability of the detector is reduced.

Disclosure of Invention

In view of the above-mentioned problems with the background art, the present utility model has as its object: it is intended to provide a calibrator for a meter.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a calibrator of detector, includes the detector main part and marks the structure, it includes the installation shell to mark the structure, the upside at the installation shell is installed to the detector main part, be equipped with in the installation shell and mark the chamber, top one side of demarcating the chamber is equipped with the gas vent, install exhaust connector in the gas vent, it is equipped with the guide plate of a plurality of mutual crisscross distribution to mark the intracavity, the bottom of demarcating the chamber has the damping seat through threaded connection, be equipped with the slow flow chamber in the damping seat, the bottom in slow flow chamber is the even guide post of installing of cross, the limiting plate is installed at the top of guide post, guide post slidable mounting has the baffle, baffle slidable mounting is in the slow flow intracavity, the damping seat is equipped with the air inlet in the bottom in slow flow chamber, the air inlet is linked together with the slow flow chamber, the outside bottom of damping seat has the fixing base through threaded connection, the air inlet connector is linked together with the air inlet.

Further defined, the meter body is mounted to the mounting housing by a threaded lock. Such a structural design facilitates connection installation.

Further limited, the surface of the guide plate is provided with a plurality of flow blocking protrusions which are uniformly arranged, and the flow blocking protrusions are fixedly arranged on the guide plate. Such a structural design further slows down the flow rate of the gas.

Further limited, the slow flow cavity is arranged in a step-shaped structure, and the baffle is arranged on a step in the slow flow cavity. The baffle is convenient to install and place by the structural design, and the effect of gradually slowing down flow is achieved.

Further limited, the inboard bottom of fixing base is equipped with the seal groove, install the sealing ring in the seal groove. Such a structural design improves the tightness of the connection.

The beneficial effects of the utility model are as follows: according to the utility model, through the collocation of the slow flow cavity, the baffle and the guide plate, the gas flow velocity of the gas to be detected becomes low after buffering and decelerating, so that the measurement error caused by the high gas flow velocity is avoided, and the detection accuracy and reliability of the main body of the detector are improved.

Drawings

The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic diagram of a calibrator for a meter according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a calibrator for a meter according to an embodiment of the present utility model;

the main reference numerals are as follows:

the detector comprises a detector main body 1, a calibration structure 2, a mounting shell 3, a calibration cavity 4, an exhaust joint 5, a guide plate 6, a damping seat 7, a slow flow cavity 8, a guide column 9, a limiting plate 10, a baffle 11, an air inlet 12, a fixing seat 13, an air inlet joint 14, a flow blocking protrusion 15 and a sealing ring 16.

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1-2, the calibration structure 2 of the detector comprises a mounting shell 3, a detector main body 1 is mounted on the upper side of the mounting shell 3, a calibration cavity 4 is arranged in the mounting shell 3, an exhaust port is arranged on one side of the top of the calibration cavity 4, an exhaust joint 5 is mounted in the exhaust port, a plurality of guide plates 6 which are distributed in a staggered mode are arranged in the calibration cavity 4, a damping seat 7 is connected to the bottom of the calibration cavity 4 through threads, a slow flow cavity 8 is arranged in the damping seat 7, guide posts 9 are uniformly mounted on the bottom of the slow flow cavity 8 in a cross shape, a limiting plate 10 is mounted on the top of the guide posts 9, a baffle 11 is mounted on the guide posts 9 in a sliding mode, the baffle 11 is mounted in the slow flow cavity 8 in a sliding mode, an air inlet 12 is arranged at the bottom of the slow flow cavity 8, the air inlet 12 is communicated with the slow flow cavity 8, a fixing seat 13 is connected to the outer bottom of the damping seat 7 through threads, an air inlet joint 14 is mounted at the bottom of the fixing seat 13, and the air inlet joint 14 is communicated with the air inlet 12.

In this embodiment, when in use, since the air inlet 12 is smaller than the diameter of the slow flow cavity 8, the flow channel of the air is widened after the air enters the slow flow cavity 8 from the air inlet connector 14, so that part of the air is decelerated, and along with the accumulation of the air in the slow flow cavity 8, the baffle 11 is pushed upwards, until the baffle 11 slides along the guide post 9 and slides out of the slow flow cavity 8, the air in the slow flow cavity 8 flows out of the calibration cavity 4, thereby having a buffering effect on the air, and the air in the calibration cavity 4 continues to flow along the guide plate 6, the flow speed of the air is further slowed down by the guide plate 6, so that the flow speed of the air to be detected becomes low after the buffering deceleration, thereby avoiding measurement errors caused by the faster flow speed of the air, and improving the accuracy and reliability of the detection of the main body 1 of the detector.

Preferably, the meter body 1 is mounted on the mounting case 3 by screw locking. Such a structural design facilitates connection installation. In practice, other mounting and connecting structure shapes of the meter body 1 and the mounting case 3 may be considered depending on the specific situation.

Preferably, the surface of the guide plate 6 is provided with a plurality of flow blocking protrusions 15 which are uniformly arranged, and the flow blocking protrusions 15 are fixedly arranged on the guide plate 6. Such a structural design further slows down the flow rate of the gas. In practice, other structural shapes of the flow blocking projections 15 are also conceivable, depending on the particular circumstances.

Preferably, the slow flow cavity 8 is arranged in a step-shaped structure, and the baffle 11 is arranged on a step in the slow flow cavity 8. Such a structural design facilitates the installation and placement of the baffle 11 and provides a gradual slow flow effect. In practice, other configurations of the slow flow chamber 8 may be considered as the case may be.

Preferably, a sealing groove is arranged at the bottom of the inner side of the fixed seat 13, and a sealing ring 16 is arranged in the sealing groove. Such a structural design improves the tightness of the connection. In practice, other sealing configurations of the holder 13 are also contemplated as the case may be.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims of this utility model, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the utility model disclosed herein.

Claims

1. The calibrator of the detector comprises a detector body (1) and a calibrating structure (2), and is characterized in that: the utility model provides a calibration structure (2) is including installing shell (3), install the upside at installing shell (3) in detector main part (1), be equipped with in installing shell (3) and mark chamber (4), top one side of demarcating chamber (4) is equipped with the gas vent, install exhaust connector (5) in the gas vent, be equipped with guide plate (6) of a plurality of mutual crisscross distribution in demarcating chamber (4), the bottom of demarcating chamber (4) has damping seat (7) through threaded connection, be equipped with slow flow chamber (8) in damping seat (7), the bottom of slow flow chamber (8) is cross even installs guide post (9), limiting plate (10) are installed at the top of guide post (9), guide post (9) slidable mounting has baffle (11), baffle (11) slidable mounting is in slow flow chamber (8), damping seat (7) are equipped with air inlet (12) in the bottom of slow flow chamber (8), air inlet (12) are linked together with flow chamber (8), the bottom of slow flow chamber (8) is cross even installs guide post (9), air inlet connection (14) are connected through screw thread (13) and are connected with air inlet fixing base (14).

2. The calibrator for a meter according to claim 1, wherein: the detector main body (1) is mounted on the mounting shell (3) through thread locking.

3. The calibrator for a meter according to claim 2, wherein: the surface of the guide plate (6) is provided with a plurality of flow blocking protrusions (15) which are uniformly arranged, and the flow blocking protrusions (15) are fixedly arranged on the guide plate (6).

4. A calibrator for a meter according to claim 3, wherein: the slow flow cavity (8) is arranged in a step-shaped structure, and the baffle (11) is arranged on a step in the slow flow cavity (8).

5. The calibrator for a meter according to claim 4, wherein: the bottom of the inner side of the fixing seat (13) is provided with a sealing groove, and a sealing ring (16) is arranged in the sealing groove.