CN210059058U

CN210059058U - Electrode cleaner of dissolved oxygen measuring instrument

Info

Publication number: CN210059058U
Application number: CN201920369216.3U
Authority: CN
Inventors: 马琳琳
Original assignee: Suzhou City Hundred Believes Environment Measuring Engineering Co Ltd
Current assignee: Suzhou City Hundred Believes Environment Measuring Engineering Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-02-14
Anticipated expiration: 2029-03-22

Abstract

The utility model discloses an electrode cleaner of dissolved oxygen measuring apparatu, including a rotatory section of thick bamboo and sponge layer, be equipped with the clearance structure on the inside wall of a rotatory section of thick bamboo, the clearance structure is the heliciform, and the sponge level is in a rotatory section of thick bamboo, and the sponge level is in the below of clearance structure. The rotating cylinder is sleeved on an electrode of the dissolved oxygen measuring instrument, the rotating cylinder is rotated, the cleaning structure pushes dirt on the circumferential surface of the electrode downwards, the sponge layer receives the dirt, and the sponge layer is in contact with the bottom surface of the electrode. Therefore, the dirt on the circumferential surface and the bottom surface of the electrode is cleaned. The cleaner can effectively and comprehensively clean dirt and liquid on the electrode, and is simple to operate.

Description

Electrode cleaner of dissolved oxygen measuring instrument

Technical Field

The utility model relates to an environmental protection technology field, concretely relates to dissolved oxygen measuring apparatu.

Background

A dissolved oxygen meter (shown in fig. 1) is used to measure the amount of oxygen dissolved in an aqueous solution, which is dissolved in water by ambient air, air flow and photosynthesis. Dissolved oxygen is consumed in water by respiration and decomposition, and is supplemented mainly by air and photosynthesis. The dissolved oxygen measuring instrument is widely used for measuring the dissolved oxygen content in various occasions, particularly for measuring aquaculture water, photosynthesis, respiration and on-site measurement.

Oxygen is reduced by the working electrode through the diaphragm to generate a diffusion current proportional to the oxygen concentration, and the concentration of dissolved oxygen in water is obtained by measuring the current. The diaphragm electrode is classified into two types, a polarographic type and a galvanic type, according to the concentration. The polarographic diaphragm electrode uses silver-silver chloride as a counter electrode, electrolyte in the electrode is potassium chloride, polyethylene and polytetrafluoroethylene films with the thickness of 25-50 mu m are arranged outside the electrode, the films block the exchange of liquid inside and outside the electrode, so that dissolved oxygen in water permeates into the electrode, the voltage between the two electrodes is controlled to be 0.5-0.8V, and the concentration of the dissolved oxygen can be known by measuring diffusion current through an external circuit. The galvanic cell uses silver as the anode and lead as the cathode. The anode and cathode electrodes were immersed in a potassium hydroxide electrolytic cell to form two half-cells, the outer layers of which were also sealed with a film. The dissolved oxygen is reduced at the anode to generate a diffusion current, and the concentration of the dissolved oxygen can be obtained by measuring the diffusion current.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem that: and (4) comprehensively cleaning the electrode of the dissolved oxygen measuring instrument.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides an electrode cleaner of dissolved oxygen measuring apparatu, includes a rotatory section of thick bamboo and sponge layer, is equipped with the clearance structure on the inside wall of a rotatory section of thick bamboo, and the clearance structure is the heliciform, and the sponge layer is located a rotatory section of thick bamboo, and the sponge layer is located the below of clearance structure, and the sponge layer can be dismantled with a rotatory section of thick bamboo and be connected.

The rotary barrel is sleeved on an electrode of the dissolved oxygen measuring instrument, the rotary barrel is manually rotated, the cleaning structure distributed on the inner side wall of the rotary barrel in a spiral mode is in contact with the circumferential surface of the electrode, dirt on the circumferential surface of the electrode is pushed downwards along the axial direction of the electrode, the dirt pushed down from the circumferential surface of the electrode is accepted by the sponge layer, the dirt comprises liquid and is absorbed by the sponge layer, and the sponge layer is in contact with the bottom surface of the electrode. Therefore, the dirt on the circumferential surface and the bottom surface of the electrode is cleaned.

The cylindrical electrode of the dissolved oxygen meter often extends into the liquid, on which dirt can accumulate; an electrode is removed from the liquid and has the liquid attached thereto. Cleaner, filth and liquid on can effectively and comprehensively clearing up the electrode, easy operation.

Drawings

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic view of a dissolved oxygen meter;

FIG. 2 is a schematic diagram of an electrode cleaner for a dissolved oxygen meter;

FIG. 3 is an external view of an electrode cleaner of a dissolved oxygen meter;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic view of a piston;

fig. 6 is a schematic view of a sponge layer.

The symbols in the drawings illustrate that:

01. a body of the dissolved oxygen meter; 02. an electrode of a dissolved oxygen meter;

10. a rotary drum; 11. rotating the upper barrel; 12. rotating the lower barrel;

20. a sponge layer; 21. a clamp ring; 22. a cross slot on the clamping ring;

30. cleaning the structure;

40. a fixing plate; 41. a first through hole;

50. a piston; 51. a glue injection port; 52. a handle portion;

60. a membrane; 61. a second through hole;

70. a threaded member;

80. a sleeve; 81. and a bearing.

Detailed Description

With reference to fig. 2 to 4, an electrode cleaner for a dissolved oxygen measuring instrument comprises a rotary cylinder 10 and a sponge layer 20, wherein a cleaning structure 30 is arranged on the inner side wall of the rotary cylinder, the cleaning structure is spiral, the sponge layer is arranged in the rotary cylinder and is arranged below the cleaning structure, and the sponge layer is detachably connected with the rotary cylinder.

The cleaning structure can be elastic plastic, or sponge with certain hardness, or elastic composite material, as long as the cleaning structure is in contact with the circumferential surface of the electrode and can move relatively without damaging the electrode.

The sponge layer is detachably connected with the rotary cylinder, as shown in fig. 6, the sponge layer 20 is arranged in the rotary cylinder 10 through a pair of clamping rings 21; the pair of clamping rings are in threaded connection with the inner side wall of the rotating cylinder, and the sponge layer is clamped by the pair of clamping rings up and down. Be equipped with the external screw thread on the lateral wall of grip ring, be equipped with the internal thread on the inside wall of rotatory section of thick bamboo, internal thread and external screw thread meshing, centre gripping sponge layer 20 about a pair of grip ring. When the sponge layer needs to be replaced, the sponge layer can be taken out by taking down any clamping ring in the pair of clamping rings in a rotating mode. Any clamping ring is provided with a cross groove, so that a screwdriver can conveniently rotate the clamping ring.

The rotary cylinder 10 comprises an upper rotary cylinder 11 and a lower rotary cylinder 12, and the upper rotary cylinder and the lower rotary cylinder are detachably connected; the sponge layer 20 is positioned at the bottom of the rotary upper barrel. The rotary lower barrel is unscrewed, and the clamping ring 21 and the sponge layer 20 can be conveniently taken out. Preferably, the upper rotary drum and the lower rotary drum are connected by screw threads, for example, an external thread is arranged on the outer side wall of the bottom of the upper rotary drum, and an internal thread is arranged on the inner side wall of the top of the lower rotary drum, and the internal thread is matched with the external thread to realize detachable connection of the upper rotary drum and the lower rotary drum.

The lower rotary cylinder is internally provided with a fixed plate 40 and a piston 50, the piston is positioned below the fixed plate, the fixed plate is provided with a first through hole 41, and glue is filled between the fixed plate and the piston. The fixed plate is close to the top of the rotary lower barrel, and the fixed plate can be fixed on the inner side wall of the rotary lower barrel in the modes of interference fit, screw connection and super glue bonding. The piston 50 is pushed upwards, glue enters a gap between the fixing plate and the sponge layer through the first through hole 41, and liquid glue enters a gap between sponge of the sponge layer and permeates above the sponge layer, so that the sponge layer has viscosity and can absorb dirt, particularly fine particles, from the electrodes. After the cleaner cleans one or a plurality of electrodes, the sponge layer can not be used due to the fact that the sponge layer is full of glue or is attached with excessive dirt, and a new sponge layer needs to be replaced.

A diaphragm 60 is arranged in the lower rotary cylinder 12, a second through hole 61 is formed in the diaphragm, the first through hole is located in the center of the fixing plate 40, the second through hole is located on the periphery of the first through hole, and the diaphragm can seal the first through hole 41. When the cleaner cleans electrode dirt, the rotary cylinder 10 is firstly rotated, then the piston 50 is pushed upwards, or the piston is firstly pushed, then the rotary cylinder is rotated, or the rotary cylinder and the piston are intermittently rotated, or the rotation is alternatively carried out. Upwards promote the piston, glue between fixed plate and the piston upwards flows through first through-hole 41, acts on the diaphragm 60 of sealed first through-hole, and the diaphragm is become the epirelief by sunken, and during glue got into the clearance between diaphragm and the fixed plate, got into between diaphragm and the sponge layer 20 through second through-hole 61 again, in the sponge of sponge layer again. When not using the clearance ware, take off the clearance ware from the electrode, the piston is pulled out, moves the piston downwards promptly, and the clearance between fixed plate and the piston forms the vacuum, and glue between sponge layer, sponge layer and the diaphragm, between diaphragm and the fixed plate is between suction fixed plate and the piston. Under the action of vacuum, the diaphragm is reset from convex to concave, the middle part of the diaphragm seals the first through hole 41, and the glue between the fixing plate and the piston is sealed to keep the glue in a liquid state for later use.

If the second through hole of the diaphragm is blocked by the dry glue, the upper rotary cylinder and the lower rotary cylinder can be detached, and an operator can conveniently clean the diaphragm. An annular groove is formed in the inner side wall of the lower rotary cylinder, and the periphery of the diaphragm is clamped in the annular groove.

As shown in fig. 5, the piston 50 is provided with a glue injection port 51, which is sealed by a screw 70. By unscrewing the screw, glue can be injected between the fixing plate 40 and the piston 50.

The plunger 50 is provided with a handle portion 52 protruding downward to rotate the lower cartridge 12. The handle part is convenient for an operator to push and pull the piston.

The rotating cylinder 10 is pivoted with a sleeve 80 at its periphery, and the rotating cylinder protrudes downward from the sleeve, specifically, the rotating cylinder protrudes downward from the sleeve. A bearing 81 is arranged between the rotary cylinder and the sleeve to realize the pin joint of the rotary cylinder and the sleeve. The function of the sleeve is that the electrode is inserted into the rotary cylinder 10, and the operator can hold the sleeve with one hand and rotate the rotary cylinder 10 or push and pull the piston 50 with the other hand, so that the operation can be smoothly carried out. Preferably, the lower rotary cylinder 12 is transparent, so that the operator can know the action state of the diaphragm and the amount of glue between the fixed plate 40 and the piston 50.

Claims

1. An electrode cleaner of dissolved oxygen measuring apparatu which characterized in that: including a rotatory section of thick bamboo (10) and sponge layer (20), be equipped with clearance structure (30) on the inside wall of a rotatory section of thick bamboo, clearance structure is the heliciform, and the sponge layer is located a rotatory section of thick bamboo, and the sponge layer is located clearance structure's below, and the sponge layer can be dismantled with a rotatory section of thick bamboo and be connected.

2. The electrode cleaner of a dissolved oxygen meter according to claim 1, wherein: the sponge layer (20) is arranged in the rotary cylinder (10) through a pair of clamping rings (21); the pair of clamping rings are in threaded connection with the inner side wall of the rotating cylinder, and the sponge layer is clamped by the pair of clamping rings up and down.

3. The electrode cleaner of a dissolved oxygen meter according to claim 2, wherein: the rotary drum (10) comprises a rotary upper drum (11) and a rotary lower drum (12), and the rotary upper drum and the rotary lower drum are detachably connected; the sponge layer (20) is positioned at the bottom of the rotary upper barrel;

a fixing plate (40) and a piston (50) are arranged in the rotary lower cylinder, the piston is positioned below the fixing plate, a first through hole (41) is formed in the fixing plate, and glue is filled between the fixing plate and the piston.

4. The electrode cleaner of a dissolved oxygen meter according to claim 3, wherein: a diaphragm (60) is arranged in the rotary lower cylinder (12), a second through hole (61) is formed in the diaphragm, the first through hole is located in the center of the fixing plate (40), the second through hole is located on the periphery of the first through hole, and the diaphragm can seal the first through hole (41).

5. The electrode cleaner of a dissolved oxygen meter according to claim 3, wherein: the piston (50) is provided with a glue injection opening (51) which is sealed by a threaded piece (70).

6. The electrode cleaner of a dissolved oxygen meter according to claim 3, wherein: the piston (50) is provided with a handle portion (52) projecting downward from the rotary lower cylinder (12).

7. The electrode cleaner of a dissolved oxygen meter according to claim 1, wherein: the periphery of the rotating cylinder (10) is pivoted with a sleeve (80), and the rotating cylinder protrudes downwards from the sleeve.