CN219162045U

CN219162045U - Auxiliary device for calibrating dissolved oxygen meter

Info

Publication number: CN219162045U
Application number: CN202320121171.4U
Authority: CN
Inventors: 杨平平; 贾梦琳; 曹磊; 齐欢欢
Original assignee: Xi'an Hantang Analysis Detection Co ltd
Current assignee: Xi'an Hantang Analysis Detection Co ltd
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-06-09
Anticipated expiration: 2033-01-16

Abstract

The utility model discloses an auxiliary device for calibrating a dissolved oxygen meter, which comprises a swing arm, a swing arm mounting frame and a transmission mechanism, wherein the upper end of the swing arm is hinged to the top of one side of the swing arm mounting frame, a clamp is arranged at the lower end of the swing arm, the transmission mechanism comprises a rotating rod rotatably mounted at the bottom of one side of the swing arm mounting frame through a rotating shaft and a sliding block which is arranged at one end of the rotating rod and is in sliding connection with the swing arm mounting frame, the sliding block is rotatably mounted at one end of the rotating rod, and a driving motor for driving the rotating shaft to rotate is arranged at one side of the swing arm mounting frame. The utility model has reasonable structural design, the test probe is arranged at the lower end of the swing arm through the clamp, the rotating rod and the sliding block are assembled together to drive the swing arm to swing, the swing frequency of the swing arm can be changed by controlling the rotating speed of the driving motor, and meanwhile, the swing amplitude of the swing arm can be changed by changing the working length of the rotating rod, so that the swing frequency and the swing amplitude of the test probe are accurately controlled, and the reliability of the verification result of the dissolved oxygen meter can be effectively ensured.

Description

Auxiliary device for calibrating dissolved oxygen meter

Technical Field

The utility model belongs to the technical field of instrument verification, and particularly relates to an auxiliary device for verification of a dissolved oxygen meter.

Background

The dissolved oxygen meter is mainly used for measuring the constant Dissolved Oxygen (DO) concentration in water, and generally consists of a test probe, an electronic unit and/or a display unit. The dissolved oxygen meter has wide application, wherein the film covered electrode dissolved oxygen meter needs to obtain the error of the dissolved oxygen concentration indication value in the verification process, and then the error of the dissolved oxygen concentration indication value with the largest absolute value is taken as the verification result. When the error of the indication value of the concentration of the dissolved oxygen is obtained, the temperature of the constant-temperature water bath is required to be respectively adjusted to about 10 ℃, 20 ℃ and 30 ℃, and at each temperature point, the electrode is put into the constant-temperature water bath from the air and is swung gently, namely, the test probe of the dissolved oxygen tester is required to be swung. At present, a method of manual shaking is generally adopted to enable the test probe to swing, but the test probe is manually shaken, firstly, the swing amplitude of the test probe is difficult to control, and secondly, the swing frequency of the test probe is difficult to control, so that the reliability of verification results of the test probe is affected. Therefore, it is necessary to provide an auxiliary device for calibrating a dissolved oxygen meter, which can precisely control the oscillation frequency and the oscillation amplitude of the test probe.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides an auxiliary device for calibrating a dissolved oxygen meter, which has reasonable structural design, a test probe is arranged at the lower end of a swing arm through a clamp, a rotating rod and a sliding block are assembled together to drive the swing arm to swing, a driving motor drives the rotating rod to rotate at the same time, the swinging frequency of the swing arm can be changed by controlling the rotating speed of the driving motor, and the swinging amplitude of the swing arm can be changed by changing the working length of the rotating rod, so that the swinging frequency and the amplitude of the test probe are accurately controlled, and the reliability of the calibrating result of the dissolved oxygen meter can be effectively ensured.

In order to solve the technical problems, the utility model adopts the following technical scheme: an auxiliary device for detecting a dissolved oxygen meter, which is characterized in that: including swing arm, swing arm mounting bracket and setting just be used for driving swing arm wobbling drive mechanism on the swing arm mounting bracket, the upper end of swing arm articulates at one side top of swing arm mounting bracket, the lower extreme of swing arm is provided with the clamp that supplies the test probe of dissolved oxygen tester to install, drive mechanism including rotate the rotary rod of installing in swing arm mounting bracket one side bottom and set up the one end at the rotary rod and with swing arm mounting bracket sliding connection's slider through the pivot, the slider rotates the one end of installing at the rotary rod, one side of keeping away from the rocking arm on the swing arm mounting bracket is provided with the driving motor who is used for driving the pivot rotation.

The auxiliary device for detecting the dissolved oxygen meter is characterized in that: the swing arm mounting bracket includes the inverted triangle mounting panel, sets up the roof at inverted triangle mounting panel one side top and connects the stiffening plate between inverted triangle mounting panel and roof, stiffening plate and rotary rod are located the both sides on the inverted triangle mounting panel respectively.

The auxiliary device for detecting the dissolved oxygen meter is characterized in that: the bottom of the inverted triangle mounting plate is provided with a rotating shaft mounting sleeve for mounting the rotating shaft, and the central axis of the rotating shaft mounting sleeve is mutually perpendicular to the inverted triangle mounting plate.

The auxiliary device for detecting the dissolved oxygen meter is characterized in that: the swing arm mounting frame is arranged on one side of the constant temperature tank through the liftable bracket.

The auxiliary device for detecting the dissolved oxygen meter is characterized in that: and a sliding hole for sliding and mounting the sliding block is formed in the swing arm along the length direction of the swing arm.

The auxiliary device for detecting the dissolved oxygen meter is characterized in that: the sliding block comprises a sliding block body which is slidably arranged in the sliding hole and a limiting plate which is arranged on one side, far away from the rotating rod, of the sliding block body.

The auxiliary device for detecting the dissolved oxygen meter is characterized in that: the included angle between the swing arm and the vertical direction is not more than 30 degrees when the swing arm swings.

The auxiliary device for detecting the dissolved oxygen meter is characterized in that: the rotary rod rotates in a vertical plane, the swing arm swings in the vertical plane, and the rotation plane of the rotary rod is parallel to the swing plane of the swing arm.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the test probe is arranged at the lower end of the swing arm through the clamp, the test probe can be driven to automatically swing through the swing arm, and meanwhile, the clamp is convenient to assemble and disassemble.

2. According to the utility model, the swing arm is driven to swing by assembling the rotating rod and the sliding block together, the driving motor drives the rotating rod to rotate, the swing frequency of the swing arm can be changed by controlling the rotating speed of the driving motor, and meanwhile, the swing amplitude of the swing arm can be changed by changing the working length of the rotating rod, so that the swing frequency and the swing amplitude of the test probe are accurately controlled, and the reliability of the verification result of the dissolved oxygen meter can be effectively ensured.

In summary, the test probe is installed at the lower end of the swing arm through the clamp, the rotating rod and the sliding block are assembled together to drive the swing arm to swing, meanwhile, the driving motor drives the rotating rod to rotate, the swinging frequency of the swing arm can be changed by controlling the rotating speed of the driving motor, meanwhile, the swinging amplitude of the swing arm can be changed by changing the working length of the rotating rod, further, the swinging frequency and the amplitude of the test probe are accurately controlled, and the reliability of the verification result of the dissolved oxygen meter can be effectively ensured.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a schematic diagram of a connection structure between a swing arm and a swing arm mounting frame according to the present utility model.

Reference numerals illustrate:

1-a swing arm; 1-slide hole; 2-clamping;

3-rotating the rod; 4-a sliding block; 4-1-a slider body;

4-2-limiting plates; 5-a rotating shaft; 6-driving a motor;

7-a swing arm mounting rack; 7-1, an inverted triangle mounting plate; 7-2-top plate;

7-3, a stiffening plate; 7-4, a rotating shaft mounting sleeve; 8-a liftable bracket;

9-a test probe; 10-constant temperature bath.

Detailed Description

As shown in fig. 1 to 3, the utility model comprises a swing arm 1, a swing arm mounting frame 7 and a transmission mechanism which is arranged on the swing arm mounting frame 7 and is used for driving the swing arm 1 to swing, wherein the upper end of the swing arm 1 is hinged to the top of one side of the swing arm mounting frame 7, the lower end of the swing arm 1 is provided with a clamp 2 for mounting a test probe 9 of a dissolved oxygen meter, the transmission mechanism comprises a rotating rod 3 which is rotatably arranged at the bottom of one side of the swing arm mounting frame 7 through a rotating shaft 5 and a sliding block 4 which is arranged at one end of the rotating rod 3 and is in sliding connection with the swing arm mounting frame 7, the sliding block 4 is rotatably arranged at one end of the rotating rod 3, the other end of the rotating rod 3 is connected with the rotating shaft 5, and one side, far away from the swing arm 1, of the swing arm mounting frame 7 is provided with a driving motor 6 for driving the rotating shaft 5 to rotate.

During the in-service use, install test probe 9 at swing arm 1's lower extreme through clamp 2, can drive test probe 9 automatic swing through swing arm 1, simultaneously, the dismouting of being convenient for of the setting of clamp 2.

It should be noted that, through driving swing arm 1 swing with rotary rod 3 and slider 4 assembly together, driving motor 6 drives rotary rod 3 rotatory simultaneously, can change swing arm 1's swing frequency through the rotational speed of control driving motor 6, can change swing arm 1 swing range through the length of work that changes rotary rod 3 simultaneously, and then accurate control test probe 9 swing frequency and range, can effectively ensure the reliability of dissolved oxygen meter verification result.

The longitudinal direction of the test probe 9 and the longitudinal direction of the swing arm 1 are parallel to each other.

In specific implementation, the driving motor 6 is installed on the liftable bracket 8.

As shown in fig. 3, in this embodiment, the swing arm mounting frame 7 includes an inverted triangle mounting plate 7-1, a top plate 7-2 disposed on top of one side of the inverted triangle mounting plate 7-1, and a stiffening plate 7-3 connected between the inverted triangle mounting plate 7-1 and the top plate 7-2, wherein the stiffening plate 7-3 and the rotating rod 3 are respectively located on two sides of the inverted triangle mounting plate 7-1.

In actual use, the top plate 7-2 and the inverted triangle mounting plate 7-1 are mutually perpendicular, the stiffening plate 7-3 is a right-angle triangle plate, and the stiffening plate 7-3 and the inverted triangle mounting plate 7-1 and the stiffening plate 7-3 and the top plate 7-2 are mutually perpendicular.

It should be noted that, the rotating rod 3 and the swinging arm 1 are parallel to the inverted triangle mounting plate 7-1, and the rotating rod 3 is located between the swinging arm 1 and the inverted triangle mounting plate 7-1.

In this embodiment, a shaft mounting sleeve 7-4 for mounting the shaft 5 is disposed at the bottom of the inverted triangle mounting plate 7-1, and the central axis of the shaft mounting sleeve 7-4 is perpendicular to the inverted triangle mounting plate 7-1.

In actual use, one end face of the rotating shaft mounting sleeve 7-4 is flush with one side, close to the swing arm 1, of the inverted triangle mounting plate 7-1.

As shown in fig. 1 and 2, in the present embodiment, the swing arm mounting frame 7 is mounted on one side of the thermostat 10 through a liftable bracket 8.

In actual use, the swing arm 1 is located above the constant temperature tank 10, and when the test probe 9 is mounted at the lower end of the swing arm 1, the test probe 9 can extend into the constant temperature tank 10.

It should be noted that the liftable support 8 includes a lifting base and two supporting uprights disposed on the lifting base, and the upper ends of the two supporting uprights are connected with the top plate 7-2.

In this embodiment, a sliding hole 1-1 for sliding and mounting the sliding block 4 is formed in the swing arm 1 along the length direction thereof.

When in actual use, the sliding hole 1-1 is a kidney-shaped hole, and the length of the sliding hole 1-1 is more than or equal to two times of the length of the rotating rod 3, so that the rotating rod 3 can rotate 360 degrees, and then the swing arm 1 swings at a certain angle under the action of the sliding block 4 and the sliding hole 1-1.

In this embodiment, the slider 4 includes a slider body 4-1 slidably mounted in the slide hole 1-1 and a limiting plate 4-2 disposed on the side of the slider body 4-1 away from the rotating rod 3.

In actual use, the limiting plate 4-2 and the rotating rod 3 are respectively positioned at two sides of the swing arm 1.

In this embodiment, the angle between the swing arm 1 and the vertical direction is not greater than 30 °.

When in actual use, when the rotating rod 3 is vertically arranged and the sliding block 4 is positioned at the lower end of the rotating rod 3, the included angle between the rotating rod 3 and the swinging arm 1 is zero, at the moment, the rotating rod 3 rotates clockwise, along with the rotation of the rotating rod 3, the included angle between the rotating rod 3 and the swinging arm 1 is gradually increased, and when the rotating rod 3 rotates to be mutually perpendicular to the swinging arm 1, the included angle between the rotating rod 3 and the swinging arm 1 is the largest in the forward direction and has a value of 30 degrees; along with the rotation of the rotating rod 3, the included angle between the rotating rod 3 and the swing arm 1 is gradually reduced, and when the rotating rod 3 is vertically arranged and the sliding block 4 is positioned at the upper end of the rotating rod 3, namely the rotating rod 3 rotates 180 degrees, the rotating rod 3 is parallel to the swing arm 1; along with the rotation of the rotating rod 3, the included angle between the rotating rod 3 and the swing arm 1 is gradually increased, and when the rotating rod 3 rotates to be mutually perpendicular to the swing arm 1, the included angle between the rotating rod 3 and the swing arm 1 is reversely maximum and has a value of 30 degrees; along with the rotation of rotary rod 3, the contained angle between rotary rod 3 and the swing arm 1 reduces gradually, and when rotary rod 3 is vertical layout and slider 4 is located the lower extreme of rotary rod 3, rotary rod 3 rotatory 360 degrees promptly, and rotary rod 3 and swing arm 1 get back to initial position.

In this embodiment, the rotating rod 3 rotates in a vertical plane, the swing arm 1 swings in the vertical plane, and the rotation plane of the rotating rod 3 is parallel to the swing plane of the swing arm 1.

When the utility model is actually used, the test probe 9 of the dissolved oxygen meter is arranged at the lower end of the swing arm 1 through the clamp 2, the height of the liftable bracket 8 is adjusted, the test probe 9 stretches into the constant temperature groove 10, the rotating speed of the driving motor 6 is adjusted according to the required swinging frequency of the swing arm 1, the driving motor 6 drives the rotating rod 3 to rotate, and then under the action of the sliding block 4 and the sliding hole 1-1, the rotating rod 3 drives the swing arm 1 to swing at a certain angle, and then the electrode of the test probe 9 swings slightly in the constant temperature groove 10 in a constant temperature water bath.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An auxiliary device for detecting a dissolved oxygen meter, which is characterized in that: including swing arm (1), swing arm mounting bracket (7) and set up on swing arm mounting bracket (7) and be used for driving swing arm (1) wobbling drive mechanism, the upper end of swing arm (1) articulates at one side top of swing arm mounting bracket (7), the lower extreme of swing arm (1) is provided with clamp (2) that supply test probe (9) of dissolved oxygen tester to install, drive mechanism includes rotary rod (3) and slider (4) setting in one end and with swing arm mounting bracket (7) sliding connection of swing arm mounting bracket (3) bottom through pivot (5) rotation installation in swing arm mounting bracket (7) one side, slider (4) rotation is installed in one end of rotary rod (3), one side that keeps away from the rocking arm on swing arm mounting bracket (7) is provided with driving motor (6) that are used for driving pivot (5) rotation.

2. The auxiliary device for calibrating a dissolved oxygen meter according to claim 1, wherein: the swing arm mounting frame (7) comprises an inverted triangle mounting plate (7-1), a top plate (7-2) arranged at the top of one side of the inverted triangle mounting plate (7-1) and a stiffening plate (7-3) connected between the inverted triangle mounting plate (7-1) and the top plate (7-2), wherein the stiffening plate (7-3) and the rotating rod (3) are respectively positioned at two sides of the inverted triangle mounting plate (7-1).

3. The auxiliary device for calibrating a dissolved oxygen meter according to claim 2, wherein: the bottom of the inverted triangle mounting plate (7-1) is provided with a rotating shaft mounting sleeve (7-4) for mounting the rotating shaft (5), and the central axis of the rotating shaft mounting sleeve (7-4) is mutually perpendicular to the inverted triangle mounting plate (7-1).

4. The auxiliary device for calibrating a dissolved oxygen meter according to claim 1, wherein: the swing arm mounting frame (7) is arranged on one side of the constant temperature tank (10) through the lifting support (8).

5. The auxiliary device for calibrating a dissolved oxygen meter according to claim 1, wherein: a sliding hole (1-1) for sliding and mounting the sliding block (4) is formed in the swing arm (1) along the length direction of the swing arm.

6. The auxiliary device for calibrating a dissolved oxygen meter according to claim 5, wherein: the sliding block (4) comprises a sliding block body (4-1) which is slidably arranged in the sliding hole (1-1) and a limiting plate (4-2) which is arranged on one side, far away from the rotating rod (3), of the sliding block body (4-1).

7. The auxiliary device for calibrating a dissolved oxygen meter according to claim 1, wherein: the included angle between the swing arm (1) and the vertical direction is not more than 30 degrees when the swing arm swings.

8. The auxiliary device for calibrating a dissolved oxygen meter according to claim 1, wherein: the rotary rod (3) rotates in a vertical plane, the swing arm (1) swings in the vertical plane, and the rotation plane of the rotary rod (3) is parallel to the swing plane of the swing arm (1).