CN216013222U - Portable dissolved oxygen tester - Google Patents

Abstract

The utility model relates to a dissolved oxygen survey device field specifically discloses a portable dissolved oxygen apparatus, include: the device comprises a host with an operation panel, a handle, a probe, a connecting rod assembly connected between the host and the probe, a connecting rod forming the connecting rod assembly, a first insulating sleeve, an electrode sleeve, a second insulating sleeve forming the connecting rod, an electrode core assembly formed by a fixed core and a movable core, and a locking screw sleeve. The utility model discloses a link assembly connects host computer and probe to the host computer can conveniently carry convenient to grip, can be according to the use quantity of the depth of water adjustment connecting rod of difference, thereby can reach and stretch into the probe and carry out real-time measurement to the water layer of the degree of depth of difference, consequently make measurement accuracy more accurate and can satisfy the demand of layering measurement.

Description

Portable dissolved oxygen tester

Technical Field

The utility model belongs to dissolved oxygen survey device field, in particular to portable dissolved oxygen apparatus.

Background

Molecular oxygen in air dissolved in water is called dissolved oxygen, and the content of dissolved oxygen in water has close relation with the partial pressure of oxygen in air and the temperature of water. The amount of dissolved oxygen in water is an index for measuring the self-purification capacity of water. The dissolved oxygen in the water is consumed, and the water is required to be recovered to the initial state in a short time, which indicates that the self-purification capacity of the water body is strong, or the water body is not seriously polluted. Otherwise, the water body pollution is serious, the self-cleaning capability is weak, and even the self-cleaning capability is lost. In the aquaculture industry, it is necessary to measure the dissolved oxygen in the water body frequently so as to better control the oxygen content in the water.

The dissolved oxygen instrument method is a common method for detecting dissolved oxygen in a water source, and the dissolved oxygen instrument consists of a sensor and a display instrument. The sensing part of the dissolved oxygen analyzer consists of a gold electrode (cathode), a silver electrode (anode) and potassium chloride or potassium hydroxide electrolyte, and oxygen diffuses into the electrolyte through a membrane to form a measuring loop together with the gold electrode and the silver electrode. However, in the using process of the existing dissolved oxygen instrument, only a surface water sample can be sampled and tested, the dissolved oxygen instrument is not portable enough, the cost of the path between a sample taking place and a testing place and the time cost are high, so that the water temperature is changed, the measurement of the dissolved oxygen is not accurate enough, and for water taking points with different depths, the content of the dissolved oxygen is different due to different pressures and temperatures, but the existing dissolved oxygen instrument cannot perform rapid sampling analysis on the water taking points with different depths.

The above background disclosure is only provided to aid understanding of the inventive concepts and solutions of the present invention, and it does not necessarily pertain to the prior art of this patent application, and it should not be used to assess the novelty and inventive aspects of this application without explicit evidence that such contents are disclosed at the filing date of this patent application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable dissolved oxygen apparatus to overcome current dissolved oxygen apparatus and can't take a sample and the instrument body is portable inadequately to the water source of the different degree of depth, can't carry out quick analysis's defect to the sample.

In order to achieve the above object, the utility model provides a portable dissolved oxygen tester, include: a portable dissolved oxygen tester comprises a host and a probe which are electrically connected with each other, and is characterized in that a controller is arranged in the host, a first joint is arranged at one end of the host, an operation panel is arranged on the side part of the host, and the operation panel is electrically connected with the controller; the one end of probe is equipped with the second and connects, first connect with through link assembly interconnect between the second connects, link assembly is formed by a plurality of connecting rods end to end connection, adjacent two be equipped with sealed the pad between the connecting rod, two the connecting rod is connected through the locking swivel nut.

Preferably, in the above technical scheme, two sides of the host are respectively provided with a handle, and the two handles are symmetrically arranged on two sides of the connecting rod assembly and are perpendicular to the connecting rod assembly.

Preferably, in the above technical scheme, a sunshade is disposed on the periphery of the operation panel, the sunshade is close to the other end of the main machine, and the edge of the sunshade protrudes outwards from the side of the main machine.

Preferably, in the above technical solution, the connecting rod includes: a first insulating sleeve comprising a first end and a second end; the electrode sleeve is sleeved in the first insulating sleeve, a first slot and a first bolt are respectively arranged at two ends of the electrode sleeve, the first slot corresponds to the first end, the first bolt corresponds to the second end, and the first slot and the first bolt can be matched with each other; the second insulating sleeve is sleeved in the electrode sleeve; and the electrode core assembly is sleeved in the second insulating sleeve and comprises a third end and a fourth end, the third end faces the first slot and protrudes outwards from one end of the second insulating sleeve, and the fourth end faces the first bolt and protrudes outwards from the other end of the second insulating sleeve.

Preferably, in the above technical solution, the fourth end can elastically extend and retract from the other end of the second insulating sleeve, when the fourth end extends outward, the third end and the fourth end are disconnected from each other, and when the fourth end retracts inward, the third end and the fourth end can be electrically connected.

Preferably, in the above technical solution, the electrode core assembly includes: the fixed core is fixedly arranged in the second insulating sleeve, one end of the fixed core extends outwards from the bottom of the first slot and has a certain distance with the end face of the first slot; the movable core is sleeved in the second insulating sleeve in a slidable mode, a spring is arranged between the movable core and the fixed core, one end of the movable core is opposite to the other end of the fixed core, and the other end of the movable core protrudes outwards from the other end of the second insulating sleeve and has a certain distance with the end face of the first bolt.

Preferably, in the above technical solution, a diameter of the inner side wall of the first socket is gradually reduced from a mouth portion of the first socket to a bottom portion thereof, and a diameter of the outer side wall of the first plug is gradually reduced from a root portion thereof to an end portion thereof.

Preferably, in the technical scheme, the periphery of the first end is provided with a snap ring protruding outwards, and the periphery of the second end is provided with external threads.

Preferably, in the above technical scheme, the threaded sleeve is sleeved on the connecting rod, a sleeve hole is arranged in the threaded sleeve, one end of the sleeve hole is provided with a clamping part matched with the snap ring, and the other end of the sleeve hole is provided with an internal thread matched with the external thread.

Preferably, in the above technical solution, the first joint is provided with a second plug pin matched with the first slot, and the second joint is provided with a second slot matched with the first plug pin.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model provides a portable dissolved oxygen apparatus passes through link assembly and connects host computer and probe to the host computer can conveniently carry on the grip, can adjust the use quantity of connecting rod according to the depth of water of difference, thereby can reach and stretch into the probe and carry out real-time measurement to the water layer of the degree of depth of difference, consequently make measurement accuracy more accurate and can satisfy the demand of layering measurement.

2. The utility model provides a controller and operating panel are integrated on the host computer to be provided with the handle in the both sides of host computer, it is more convenient to make the device measure at the measuring in-process.

3. The utility model provides an operating panel is last to be provided with the sky shade, can make things convenient for the operator to use in the field, conveniently observes the display screen reading data on the operating panel.

4. The utility model provides a both ends of connecting rod are provided with conical slot and bolt, can play the effect of supplementary centering when connecting to the toper structure can make coaxial adjacent connecting rod complex axiality more accurate.

5. The utility model provides a switch on of electric current is carried out through electrode sleeve and the mutual connection of electrode core subassembly between the connecting rod to electrode core subassembly's tip can stretch out and draw back, not only makes the connecting rod switch on the function of dismantling back disconnection when installing, but also can play certain locking effect to the connection between the connecting rod.

6. The utility model provides a locking swivel nut not only can play the effect with different connecting rod interconnect, but also can play and extrude sealed the pad, promotes the effect of junction leakproofness.

Drawings

FIG. 1 is a structural view of the portable dissolved oxygen meter of the present invention.

Fig. 2 is a block diagram of the host.

Fig. 3 is a structural view of the probe.

Fig. 4 is a partial cutaway view of the connecting rod.

Fig. 5 is a structural view of the first insulating sheath.

Fig. 6 is a partial cutaway view of an electrode sheath.

Fig. 7 is a structural view of an electrode core assembly.

Fig. 8 is a partial cutaway view of the locking nut.

Description of the main reference numerals:

1-a host, 11-a first connector, 111-a second bolt, 12-an operation panel;

2-probe, 21-second connector, 211-second slot;

3-connecting rod, 31-first insulating sleeve, 311-first end, 312-second end, 32-electrode sleeve, 321-first slot, 322-first bolt, 33-second insulating sleeve, 34-electrode core assembly, 341-fixed core, 342-movable core, 343-spring, 35-third end, 36-fourth end, 37-snap ring and 38-external thread;

4-locking screw sleeve, 41-sleeve hole, 42-clamping part and 43-internal thread;

5-a handle;

6-a sun shade;

7-sealing gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. The terms "first", "second" and "third", if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying relative importance or implying a number of indicated technical features or a precedence of indicated technical features.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

As shown in fig. 1 to 8, the portable dissolved oxygen meter in this embodiment includes: the device comprises a main machine 1, a first connector 11, a second plug pin 111, an operation panel 12, a probe 2, a second connector 21, a second slot 211, a connecting rod 3, a first insulating sleeve 31, a first end 311, a second end 312, an electrode sleeve 32, a first slot 321, a first plug pin 322, a second insulating sleeve 33, an electrode core assembly 34, a fixed core 341, a movable core 342, a spring 343, a third end 35, a fourth end 36, a clamping ring 37, an external thread 38, a locking threaded sleeve 4, a sleeve hole 41, a clamping part 42, an internal thread 43, a handle 5, a sun shade 6 and a sealing gasket 7.

A controller is installed in the host 1, a first connector 11 is arranged at the bottom end of the host 1, an operation panel 12 is installed on the front side of the host 1, a display screen and operation keys are arranged on the operation panel 12, the operation panel 12 is electrically connected with the controller, the controller is electrically connected with the first connector 11, and two handles 5 are symmetrically installed on two sides of the host 1 respectively; the top of probe 2 is provided with the second and connects 21, the internally mounted of probe 2 has sensing element, this sensing element connects 21 electric connection with the second, first joint 11 and second connect and carry out electric connection through link assembly between 21, link assembly is formed by the end to end connection of many connecting rods 3, install sealed pad 7 between two adjacent connecting rods 3, two connecting rods 3 are connected and are locked through locking swivel nut 4, two handle 5 symmetries set up in link assembly's both sides and with link assembly mutually perpendicular, sunshade 6 is installed to the periphery of operating panel 12's upper portion, sunshade 6 is close to the top of host computer 1, the outside protrusion of lateral part from host computer 1 in the border of sunshade 6, its operation button that highly is higher than on the operating panel 12.

The connecting rod 3 includes: a first insulating sleeve 31, an electrode sleeve 32, a second insulating sleeve 33 and an electrode core assembly 34; the first insulating sleeve 31 comprises a first end 311 and a second end 312, the electrode sleeve 32 is sleeved in the first insulating sleeve 31, a first slot 321 and a first bolt 322 are respectively arranged at two ends of the electrode sleeve 32, the direction of the first slot 321 is the same as that of the first end 311, the direction of the first bolt 322 is the same as that of the second end 312, the first slot 321 and the first bolt 322 on two adjacent connecting rods 3 can be matched with each other, the diameter of the inner side wall of the first slot 321 is gradually reduced from the opening part of the first slot 321 to the bottom part thereof to form an inverted cone structure, and the diameter of the outer side wall of the first bolt 322 is gradually reduced from the root part thereof to the end part thereof to form a forward cone structure; the second insulating sleeve 33 is sleeved in the electrode sleeve 32, the electrode core assembly 34 is sleeved in the second insulating sleeve 33, the electrode core assembly 34 comprises a third end 35 and a fourth end 36, the third end 35 faces the first slot 321 and protrudes outwards from one end of the second insulating sleeve 33, and the fourth end 36 faces the first plug 322 and protrudes outwards from the other end of the second insulating sleeve 33; the electrode core assembly 34 includes a fixed core 341 and a movable core 342, the fixed core 341 is fixedly installed in the second insulating sleeve 33, one end of the fixed core 341, which is the third end 35, extends outward from the bottom of the first slot 321 and has a certain distance with the end surface of the first slot 321; the movable core 342 is slidably sleeved in the second insulating sleeve 33, a spring 343 is installed between the movable core 342 and the fixed core 341, one end of the movable core 342 is opposite to the other end of the fixed core 341, the other end of the movable core 342 is a certain distance between the fourth end 36 which protrudes outwards from the other end of the second insulating sleeve 33 and the end surface of the first pin 322, when the fourth end 36 is compressed, one end of the movable core 342 is abutted with the fixed core 341 to play a conductive role, when the fourth end 36 is released, due to the restoring force of the spring 343, the movable core 342 can be pushed to move outwards, and the fourth end 36 extends outwards, so that the movable core 342 and the fixed core 341 are disconnected with each other.

The periphery of first end 311 is provided with outside convex snap ring 37, the periphery of second end 312 is provided with external screw thread 38, snap ring 37 and external screw thread 38 all set up on first insulating boot 31, the cover is established on connecting rod 3 to the swivel nut 4 cover, a trepanning 41 has been seted up in the central authorities of swivel nut 4 to run through, the inner wall of the one end of trepanning 41 is provided with and blocks the portion 42 with snap ring 37 assorted stop, the other end of trepanning 41 is equipped with and outer screw thread 38 assorted internal thread 43, first joint 11 department is provided with and first slot 321 assorted second bolt 111, second joint 21 department is provided with and first bolt 322 assorted second slot 211.

Next, the operation principle of the portable dissolved oxygen meter in this embodiment will be described in detail to make those skilled in the art understand the present invention:

in the using process, firstly, the connecting rods 3 are connected end to end according to the depth of a measured water sample to form a whole connecting rod assembly, and then two ends of the connecting rod assembly are respectively connected with the first joint 11 on the host 1 and the second joint 21 on the probe 2; in the using process, the probe 2 is vertically extended into a water source to be measured, the main machine 1 is turned on to be directly operated through the operation panel 12, and reading is read and recorded.

Connecting rod 3 is provided with first insulating cover 31 from the extroversion inwards respectively, electrode cover 32, second insulating cover 33 and electrode core subassembly 34, wherein the activity core 341 of electrode core subassembly 34 can elastically stretch out and draw back, when two connecting rods 3 pass through locking swivel nut 4 and tighten up each other, can make activity core 341 to the connecting rod 3 internal recovery and with the fixed core 341 in the electrode core subassembly 34 mutual contact, thereby make the both ends of electrode core subassembly 34 switch on, electrode core subassembly 34 and electrode cover 32 connect into a current loop between host computer 1 and the probe 2 jointly, thereby can realize measuring.

To sum up, the utility model discloses a link assembly connects host computer and probe to the host computer can conveniently carry convenient to carry and grip, can adjust the use quantity of connecting rod according to the depth of water of difference, thereby can reach and stretch into the probe and carry out real-time measurement to the water layer of the degree of depth of difference, consequently make measurement accuracy more accurate and can satisfy the demand of layered measurement.

The foregoing description of the specific exemplary embodiments of the invention has been presented for the purposes of illustration and description, and is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching, although examples of the invention have been shown and described, the present examples are intended to be illustrative of the invention and are not intended to be limiting of the invention, the particular features, structures, materials or characteristics described may be suitably combined in any one or more of the examples or illustrations, the exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application, to thereby enable others skilled in the art to utilize the invention in such detail without departing from the principles and spirit of the invention, modifications, substitutions, variations and various alternatives and changes of the embodiments may be made as necessary without inventive contribution to the art, but are protected by patent laws within the scope of the claims of the present invention.

Claims (10)

1. A portable dissolved oxygen tester comprises a host (1) and a probe (2) which are electrically connected with each other, and is characterized in that a controller is arranged in the host (1), a first connector (11) is arranged at one end of the host (1), an operation panel (12) is arranged on the side part of the host (1), and the operation panel (12) is electrically connected with the controller; the one end of probe (2) is equipped with the second and connects (21), first joint (11) with the second connects through link assembly interconnect between (21), link assembly is formed by a plurality of connecting rods (3) end to end connection, adjacent two be equipped with sealed pad (7) between connecting rod (3), two connecting rod (3) are connected through locking swivel nut (4).

2. The portable dissolved oxygen meter according to claim 1, wherein a handle (5) is disposed on each of two sides of the main body (1), and the two handles (5) are symmetrically disposed on two sides of the connecting rod assembly and perpendicular to the connecting rod assembly.

3. The portable dissolved oxygen meter according to claim 1, wherein the operation panel (12) is provided at an outer periphery thereof with a sunshade (6) near the other end of the main body (1), and an edge of the sunshade (6) protrudes outward from a side portion of the main body (1).

4. The portable dissolved oxygen meter according to claim 1, wherein the connection rod (3) comprises:

a first insulating sleeve (31), the first insulating sleeve (31) comprising a first end (311) and a second end (312);

the electrode sleeve (32) is sleeved in the first insulating sleeve (31), two ends of the electrode sleeve (32) are respectively provided with a first slot (321) and a first plug pin (322), the first slot (321) corresponds to the first end (311), the first plug pin (322) corresponds to the second end (312), and the first slot (321) and the first plug pin (322) can be matched with each other;

the second insulating sleeve (33), the said second insulating sleeve (33) is fitted over the said electrode sleeve (32);

and the electrode core assembly (34) is sleeved in the second insulating sleeve (33), the electrode core assembly (34) comprises a third end (35) and a fourth end (36), the third end (35) faces to the first slot (321) and is protruded outwards from one end of the second insulating sleeve (33), and the fourth end (36) faces to the first plug pin (322) and is protruded outwards from the other end of the second insulating sleeve (33).

5. The portable dissolved oxygen meter according to claim 4, wherein the fourth end (36) is elastically stretchable outward from the other end of the second insulating sheath (33), the third end (35) and the fourth end (36) are disconnected from each other when the fourth end (36) is extended outward, and the third end (35) and the fourth end (36) are electrically connectable when the fourth end (36) is retracted inward.

6. The portable dissolved oxygen meter according to claim 5, wherein the electrode core assembly (34) comprises:

the fixed core (341) is fixedly arranged in the second insulating sleeve (33), one end of the fixed core (341) extends outwards from the bottom of the first slot (321) and has a certain distance with the end surface of the first slot (321);

the movable core (342) is slidably sleeved in the second insulating sleeve (33), a spring (343) is arranged between the movable core (342) and the fixed core (341), one end of the movable core (342) is opposite to the other end of the fixed core (341), and the other end of the movable core (342) protrudes outwards from the other end of the second insulating sleeve (33) and has a certain distance with the end face of the first plug pin (322).

7. The portable dissolved oxygen meter according to claim 6, wherein the diameter of the inner side wall of the first slot (321) is gradually reduced from the mouth of the first slot (321) to the bottom thereof, and the diameter of the outer side wall of the first plug (322) is gradually reduced from the root thereof to the end thereof.

8. The portable dissolved oxygen meter according to claim 7, wherein the first end (311) is provided with an outwardly protruding snap ring (37) at its outer periphery, and the second end (312) is provided with an external thread (38) at its outer periphery.

9. The portable dissolved oxygen meter according to claim 8, wherein the threaded sleeve (4) is sleeved on the connecting rod (3), a sleeve hole (41) is formed in the threaded sleeve (4), a clamping part (42) matched with the snap ring (37) is arranged at one end of the sleeve hole (41), and an internal thread (43) matched with the external thread (38) is arranged at the other end of the sleeve hole (41).

10. The portable dissolved oxygen meter according to claim 9, wherein the first connector (11) is provided with a second plug (111) which is matched with the first insertion groove (321), and the second connector (21) is provided with a second insertion groove (211) which is matched with the first plug (322).

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