CN114623894A

CN114623894A - Chemical instrumentation measures detection device

Info

Publication number: CN114623894A
Application number: CN202210409671.8A
Authority: CN
Inventors: 李秦呈; 李明祥; 张洪伟; 陈誉
Original assignee: Anzheng Measurement And Testing Co ltd
Current assignee: Anzheng Measurement And Testing Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-06-14

Abstract

The invention relates to the technical field of metering and detecting devices, in particular to a chemical instrument metering and detecting device which comprises a base, wherein a water storage tank is installed at the top of the base through screws, a micro submersible pump is installed on the bottom surface of the interior of the water storage tank through screws, a water flow sensor is placed at the top of the base, a water discharge pipe is connected between a water inlet of the water flow sensor and a water outlet of the micro submersible pump, an adjustable water pipe is connected to a water outlet of the water flow sensor, and one end of the adjustable water pipe is connected with a water pipe fixing mechanism. According to the invention, the volume of the aqueous solution passing through the water flow sensor is calculated by arranging the miniature submersible pump, the water flow sensor and the PLC sensor, and then the scale value of the aqueous solution liquid level in the chemical instrument is checked, so that the accuracy of the chemical instrument in measuring the aqueous solution can be conveniently detected by a worker.

Description

Chemical instrumentation measures detection device

Technical Field

The invention relates to the technical field of metering and detecting devices, in particular to a metering and detecting device of a chemical instrument.

Background

The chemical instrument is used for holding chemical solution, and the success or failure of a chemical experiment is influenced by the volume of the chemical solution, therefore, before the chemical instrument is put into use, whether the chemical instrument measures the chemical solution or not needs to be judged to have errors, in the prior art, the aqueous solution in the measuring cylinder is usually poured into the chemical instrument, is used for checking the scale value of the liquid level in the chemical instrument to calculate the volume of the aqueous solution in the chemical instrument at the moment, and then the value of the volume of the aqueous solution is compared with the value of the volume of the original measuring cylinder of the aqueous solution to judge the accuracy of the chemical instrument for measuring the solution, this approach has the disadvantage of requiring multiple comparisons of the aqueous solution in the measuring cylinder and the chemical instrument, which wastes a lot of time, after the aqueous solution is poured into the chemical instrument from the measuring cylinder, if the aqueous solution is scattered, the detection work needs to be prepared again, and the detection efficiency of the chemical instrument is further reduced.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a chemical instrument metering detection device.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a chemical instrument metering and detecting device comprises a base, wherein a water storage tank is installed at the top of the base through screws, a micro submersible pump is installed on the bottom surface inside the water storage tank through screws, a water flow sensor is placed at the top of the base, a drain pipe is connected between a water inlet of the water flow sensor and a water outlet of the micro submersible pump, an adjustable water pipe is connected to the water outlet of the water flow sensor, one end of the adjustable water pipe is connected with a water pipe fixing mechanism, the water pipe fixing mechanism comprises an installation seat, a through hole is formed in the surface of the installation seat, one end of the adjustable water pipe is inserted into the through hole, a screw hole which is coaxially arranged is formed in the surface of the installation seat, an adjusting screw rod is installed in the screw hole in a threaded mode, a plurality of long holes extending to the side face of the installation seat are formed in the surface of the installation seat, and fixing rods are installed on the side faces of the long holes through screws, the surface of a plurality of fixed rods is slidably sleeved with a sliding pipe fitting, the bottom of the sliding pipe fitting is provided with a clamping plate through a screw, the bottom of the clamping plate extends to the lower part of the mounting seat, the top of the sliding pipe fitting is provided with a connecting rod through a pin shaft, a plurality of connecting rods are arranged above the connecting rod, a circular plate is fixedly sleeved on the surface of the adjusting screw rod, a coaxial line is arranged between the circular plate and the adjusting screw rod, one end of each connecting rod is provided with a fixed shaft through a screw, one end of each fixed shaft penetrates through the bottom of the circular plate and extends above the fixed shaft, so that the inner wall of the circular plate rotates along the surface of the fixed shaft, the top end of the adjusting screw rod is sleeved with a fixed screw pipe, the top end of the fixed screw pipe is provided with a second connecting plate through a screw, one end of the second connecting plate is provided with a supporting plate through a screw, the bottom of the supporting plate is mounted at the top of the mounting seat through screws, a height adjusting mechanism is arranged at the top of the base and comprises a mounting screw pipe, a mounting screw rod is inserted into the top thread of the mounting screw pipe in an inserted manner, a bearing seat is fixedly sleeved at the top end of the mounting screw rod, a top plate is mounted on the surface of the outer ring of the bearing seat through screws, one end of the top plate extends to the upper part of the adjustable water pipe, a first connecting plate is mounted at the bottom of the top plate through screws, a limiting pipe fitting is mounted at the bottom end of the first connecting plate through screws, the adjustable water pipe is inserted into the limiting pipe fitting, the top plate is connected with the mounting screw rod through a positioning mechanism, the positioning mechanism comprises a limiting plate and a screw hole, the screw hole is formed in the surface of the top plate, a first lead screw is inserted into the internal thread of the screw hole, and a mounting shaft which is coaxially arranged is mounted at the bottom end of the first lead screw, the utility model discloses a chemical instrumentation fixed mechanical equipment, including limiting plate, fixed axle, fixed surface, installation axle, fixed surface, the fixed surface cover of installation axle is equipped with two fixed ring spare, the surface movable sleeve of installation axle is equipped with the second movable block, two the surface of fixed ring spare contacts with the top and the bottom of second movable block respectively, the side of second movable block has a plurality of tooth pieces through the mounting screw, along the circular arc side of limiting plate has seted up a plurality of tooth's sockets of angular alignment such as equidistance, and is a plurality of the tooth piece is pegged graft respectively in the inside of a plurality of tooth's sockets, the surface of base has the PLC sensor through the mounting screw, the PLC sensor passes through the wire and is connected with miniature immersible pump and water flow sensor respectively, the top of base is equipped with chemical instrumentation fixed establishment.

Preferably, at least three elongated holes are formed in the elongated hole, and the three elongated holes are arranged at equal angles.

Preferably, the bottom end of the clamping plate is provided with a rubber block through a screw, and the side surface of the rubber block is provided with anti-skid grains.

Preferably, chemical instrumentation fixed establishment includes the fixed block, one side of fixed block is equipped with parallel arrangement's first movable block, the both ends of first movable block all have the installation piece through the mounting screw, there is fixed pipe fitting, two at the both ends of fixed block the side of installation piece has the second lead screw through the mounting screw, the one end of second lead screw is passed fixed pipe fitting and is extended to its one side, a pot head of second lead screw is equipped with the screwed pipe, the tip of screwed pipe and the end contact of fixed pipe fitting.

Preferably, rubber pads are bonded on the side faces corresponding to the positions between the fixed block and the first movable block.

Preferably, the top of the water storage tank is provided with an opening, and one end of the drain pipe penetrates through the opening.

Preferably, the length of the fixing shaft is greater than the thickness of the circular plate.

Preferably, the length of the fixing rod is greater than that of the elongated hole, and one end of the fixing rod extends to the outer side of the elongated hole.

Preferably, at least five tooth blocks are arranged, the five tooth blocks are arranged at equal intervals, and the tooth blocks and the tooth grooves are both in a pyramid shape.

Preferably, the adjustable water pipe is a flexible hose.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the miniature submersible pump, the water flow sensor and the PLC sensor are arranged, the miniature submersible pump conveys the aqueous solution in the water storage tank to the interior of the chemical instrument through the water discharge pipe, the water flow sensor and the adjustable water pipe in sequence, the water flow sensor monitors the flow of the aqueous solution flowing through the interior of the water flow sensor, the volume of the aqueous solution passing through the water flow sensor is further calculated, and then the scale value of the liquid level of the aqueous solution in the chemical instrument is checked, so that the accuracy of the chemical instrument in measuring the aqueous solution can be conveniently detected by a worker;

according to the invention, the water pipe fixing mechanism is arranged at the inlet end of the chemical instrument and is used for fixing the position of the adjustable water pipe, so that one end of the adjustable water pipe is stably inserted into the chemical instrument, and the stability of conveying aqueous solution into the chemical instrument is improved.

Drawings

FIG. 1 is an isometric view of a chemical instrumentation test device of the present invention;

FIG. 2 is a schematic structural view of a water pipe fixing mechanism of the chemical instrumentation and measurement device according to the present invention;

FIG. 3 is a schematic view of the mounting seat and the adjusting screw of the chemical instrumentation and measurement device according to the present invention;

FIG. 4 is a schematic view of a connection structure of a mounting seat and an adjustable water pipe of the chemical instrumentation and measurement device according to the present invention;

FIG. 5 is a schematic view of a sliding tube and clamp plate connection of a chemical instrumentation and measurement device according to the present invention;

FIG. 6 is a schematic view of a connection structure between a limiting pipe and a first connecting plate of the chemical instrumentation and detection device according to the present invention;

FIG. 7 is a schematic view of a top plate and mounting screw connection structure of a chemical instrumentation and measurement device of the present invention;

FIG. 8 is a schematic view of a connection structure between a limiting plate and a second movable block of the chemical instrumentation and detection device according to the present invention;

FIG. 9 is a schematic view of the connection structure of the mounting shaft and the fixed ring member of the chemical instrumentation and measurement device according to the present invention;

fig. 10 is a schematic view of a connection structure of a second lead screw, a fixing pipe and a mounting block of the chemical instrumentation and detection device according to the present invention.

In the figure: the water storage tank comprises a micro submersible pump 1, a drain pipe 2, a water storage tank 3, an adjustable water pipe 4, a limiting pipe fitting 5, a top plate 6, a first connecting plate 7, a second connecting plate 8, a first lead screw 9, a screw hole 10, a limiting plate 11, an installation screw 12, an installation screw 13, a base 14, a second lead screw 15, a threaded pipe 16, a fixed pipe fitting 17, a fixed block 18, a first movable block 19, an installation block 20, a PLC sensor 21, a water flow sensor 22, a fixed screw pipe 23, an adjusting screw 24, a circular plate 25, a connecting rod 26, a long hole 27, a sliding pipe fitting 28, a clamping plate 29, a fixed rod 30, an installation seat 31, a fixed shaft 32, a supporting plate 33, a screw hole 34, a rubber block 35, an installation shaft 36, a bearing seat 37, a second movable block 38, a tooth block 39, a tooth socket 40 and a fixed circular ring 41.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

The chemical instrument metering detection device shown in the figures 1-10 comprises a base 14, a water storage tank 3 is installed on the top of the base 14 through a screw, an opening is formed in the top of the water storage tank 3, and one end of a drain pipe 2 penetrates through the opening. After the vertical accuracy of the measurement of the chemical instrument is detected, the water solution in the chemical instrument can be poured into the water storage tank 3 from the opening, so that the water resource is conveniently recycled.

The inside bottom surface of water storage box 3 has miniature immersible pump 1 through the screw mounting, and water flow sensor 22 has been placed at the top of base 14, is connected with drain pipe 2 between water flow sensor 22's the water inlet and the delivery port of miniature immersible pump 1, and water flow sensor 22's delivery port is connected with adjustable water pipe 4, and adjustable water pipe 4 is flexible hose. The telescopic hose can be adjusted adaptively according to the height of the top plate 6, and meanwhile, the length of one end of the adjustable water pipe 4 extending into the chemical instrument can be adjusted, so that the stability of adding the aqueous solution into the chemical instrument is further improved. When the water solution is injected into the chemical instrument, the PLC controller 21 controls the micro submersible pump 1 to be electrified and operated, the micro submersible pump 1 conveys the water solution in the water storage tank 3 to the interior of the chemical instrument through the water discharge pipe 2, the water flow sensor 22 and the adjustable water pipe 14 in sequence, the water flow sensor 22 monitors the flow of the water solution flowing through the interior of the micro submersible pump, the volume of the water solution passing through the water flow sensor is calculated, the scale value of the liquid level of the water solution in the chemical instrument is checked, the flow of the water solution flowing out of the water flow sensor 22 is preset and fed back to the PLC controller 21 when the water flow sensor 22 reaches the preset vertical state, the PLC controller 21 controls the micro submersible pump 1 to stop working, and the water flow sensor 22 is pulled upwards simultaneously, so that the water solution in the adjustable water pipe 4 flows into the chemical instrument according to the rising of the height of the water solution, the water flow sensor is used for checking the scale numerical value corresponding to the height of the liquid level in the chemical instrument and comparing the water solution flow numerical value preset by the water flow sensor 22, so that the accuracy of the chemical instrument in measuring the water solution can be conveniently detected by a worker.

One end of the adjustable water pipe 4 is connected with a water pipe fixing mechanism, the water pipe fixing mechanism comprises an installation seat 31, a through hole is formed in the surface of the installation seat 31, one end of the adjustable water pipe 4 is inserted into the through hole, a screw hole 34 which is coaxially arranged is formed in the surface of the installation seat 31, an adjusting screw 24 is installed in the screw hole 34 in a threaded manner, a plurality of long holes 27 which extend to the side face of the installation seat 31 are formed in the surface of the installation seat 31, fixing rods 30 are installed on the side faces of the long holes 27 through screws, sliding pipe fittings 28 are slidably sleeved on the surfaces of the fixing rods 30, clamping plates 29 are installed at the bottoms of the sliding pipe fittings 28 through screws, the bottom ends of the clamping plates 29 extend to the lower portion of the installation seat 31, connecting rods 26 are movably installed at the tops of the sliding pipe fittings 28 through pin shafts, a circular plate 25 is arranged above the connecting rods 26, and the circular plate 25 is fixedly sleeved on the surface of the adjusting screw 24, coaxial line sets up between plectane 25 and adjusting screw 24, the fixed axle 32 is all installed through the screw to the one end of a plurality of connecting rods 26, the bottom of plectane 25 is run through and extends to its top to the one end of a plurality of fixed axles 32, make the inner wall of plectane 25 rotate along the surface of fixed axle 32, adjusting screw 24's top thread cover is equipped with fixed solenoid 23, there is second connecting plate 8 on the top of fixed solenoid 23 through the screw installation, there is backup pad 33 one end of second connecting plate 8 through the screw installation, install the top at mount pad 31 through the screw in the bottom of backup pad 33, rectangular hole 27 has been seted up threely at least, angular arrangement such as three rectangular hole 27. The plurality of elongated holes 27 are provided for accommodating a plurality of fixing rods 30, and for facilitating the holding of a plurality of clamping plates 29 fixed at the inlet end of the chemical instrument. In operation, only the adjusting screw 24 needs to be rotated, the bottom end of the adjusting screw 24 is rotated in the screw hole 34, meanwhile, the adjusting screw 24 drives the circular plate 25 to synchronously rotate, the circular plate 25 drives the connecting rod 26 to rotate on the pin shaft through the fixing shaft 32, the connecting rod 26 moves along with the circular plate 25, one end of the connecting rod 26 pulls the sliding pipe member 28 to slide on the surface of the fixing rod 30 through the pin shaft, the sliding pipe member 28 drives the clamping plates 29 to synchronously move, so that the clamping plates 29 move towards the inlet end of the chemical instrument, after the side surfaces of the clamping plates 29 contact with the surface of the chemical instrument, one end of the adjusting screw 24 is screwed into the fixing screw pipe 23, meanwhile, the adjusting screw 24 drives the circular plate 25 to vertically slide on the surface of the fixing shaft 32, after one end of the adjusting screw 24 is connected with the fixing screw pipe 23, the position of the adjusting screw 24 is fixed, and the stability of clamping plates 29 clamped and installed on the chemical instrument is improved, thereby improving the stability of one end of the adjustable water pipe arranged in the chemical instrument. The bottom end of the clamping plate 29 is provided with a rubber block 35 through a screw, and the side surface of the rubber block 35 is provided with anti-skidding threads. The rubber blocks 35 increase the frictional force of the contact between the clamping plates 29 and the surface of the chemical instrument, and further increase the stability of the clamping of the plurality of clamping plates 29 on the surface of the chemical instrument. The length of the fixed shaft 32 is greater than the thickness of the circular plate 25. The circular plate 25 can slide on the surface of the fixed shaft 32 when moving in the vertical direction. The length of the fixing rod 30 is greater than that of the elongated hole 27, and one end of the fixing rod 30 extends to the outside of the elongated hole 27. For increasing the sliding stroke of the sliding pipe member 28, and thus increasing the number of the plurality of clamping plates 29 for clamping the chemical instruments of different sizes.

The top of the base 14 is provided with a height adjusting mechanism, the height adjusting mechanism comprises an installation solenoid 13, the top end of the installation solenoid 13 is inserted with an installation screw 12, the top end of the installation screw 12 is fixedly sleeved with a bearing seat 37, the outer ring surface of the bearing seat 37 is provided with a top plate 6 through a screw, one end of the top plate 6 extends to the upper part of the adjustable water pipe 4, the bottom of the top plate 6 is provided with a first connecting plate 7 through a screw, the bottom end of the first connecting plate 7 is provided with a limit pipe 5 through a screw, the adjustable water pipe 4 is inserted in the limit pipe 5, different chemical instruments are different in height, in order to adapt to chemical instruments with different heights to be arranged on the device, through rotating the installation screw 12, the installation screw 12 rotates at the inner screw thread of the installation solenoid 13 after being stressed, meanwhile, the installation screw 12 performs height adjustment in the installation solenoid 13, and the top end of the installation screw 12 rotates at the bottom of the top plate 6 through the bearing seat 37, the installation screw 12 is convenient to drive the top plate 6 to be synchronously adjusted in height in the vertical direction, and chemical instruments with different heights can be conveniently placed.

The top plate 6 is connected with the mounting screw 12 through a positioning mechanism, the positioning mechanism comprises a limiting plate 11 and a screw hole 10, the screw hole 10 is arranged on the surface of the top plate 6, a first lead screw 9 is inserted in the internal thread of the screw hole 10, a mounting shaft 36 coaxially arranged is arranged at the bottom end of the first lead screw 9, two fixed circular ring members 41 are fixedly sleeved on the surface of the mounting shaft 36, a second movable block 38 is movably sleeved on the surface of the mounting shaft 36, the surfaces of the two fixed circular ring members 41 are respectively contacted with the top and the bottom of the second movable block 38, a plurality of tooth blocks 39 are arranged on the side surface of the second movable block 38 through screws, a plurality of tooth sockets 40 which are arranged at equal angles are arranged along the arc side surface of the limiting plate 11, the plurality of tooth blocks 39 are respectively inserted in the plurality of tooth sockets 40, when the position of the top plate 6 is fixed, only the first lead screw 9 needs to be rotated, and the first lead screw 9 rotates in the screw hole 10, and the first lead screw 9 drives the mounting shaft 36 to synchronously rotate, the mounting shaft 36 drives the two fixed circular ring members 41 to respectively slide at the top and the bottom of the second movable block 38, along with the movement of the first lead screw 9 in the screw hole 10, the first lead screw 9 is convenient to drive the two fixed circular ring members 41 to synchronously move through the mounting shaft 36, and further one of the fixed circular ring members 41 is convenient to drive the second movable block 38 to synchronously move, the second movable block 38 drives the tooth block 39 to move into the tooth groove 40 of the limiting plate 11, so that the position of the limiting plate 11 is fixed, and the stability of the position of the top plate 8 is further improved. The tooth blocks 39 are at least five, the five tooth blocks 39 are arranged at equal intervals, and the tooth blocks 39 and the tooth grooves 40 are both in a pyramid shape. The tooth blocks 39 limit the tooth grooves 40, and stability of the positions of the limiting blocks 11 is improved.

The surface of base 14 has PLC sensor 21 through the screw installation, and PLC sensor 21 passes through the wire and is connected with miniature immersible pump 1 and water flow sensor 22 respectively, and the top of base 14 is equipped with chemical instrumentation fixed establishment. Chemical instrumentation fixed establishment includes fixed block 18, one side of fixed block 18 is equipped with parallel arrangement's first movable block 19, the both ends of first movable block 19 all have installation piece 20 through the mounting screw, there is fixed pipe fitting 17 at the both ends of fixed block 18 through the mounting screw, there is second lead screw 15 two side of installation piece 20 through the mounting screw, fixed pipe fitting 17 is passed and extend to its one side to the one end of second lead screw 15, a pot head of second lead screw 15 is equipped with screwed pipe 16, the tip of screwed pipe 16 and the tip contact of fixed pipe fitting 17. Rubber pads are bonded on the corresponding side surfaces between the fixed block 18 and the first movable block 19. In order to improve the stability of the chemical instrument placed on the device, the chemical instrument is placed between the fixed block 18 and the first movable block 19, then the second lead screw 1 is pulled, the second lead screw 1 pulls the installation block 20 after being stressed, the installation block 20 drives the first movable block 19 to synchronously move after being stressed, the first movable block 19 pushes the surface of the chemical instrument, the other side surface of the chemical instrument is contacted with the side surface of the fixed block 18 when being stressed to move, then the threaded pipe 16 is sleeved on the surface of the second lead screw 15 in a threaded manner, after the end part of the threaded pipe 16 is contacted with the end part of the fixed pipe fitting 17, the position of the second lead screw 15 is fixed, and the stability of clamping the chemical instrument by the fixed block 18 and the first movable block 19 is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a chemical instrumentation measures detection device, includes base (14), its characterized in that, there is water storage box (3) at the top of base (14) through the screw installation, there is miniature immersible pump (1) at the inside bottom surface of water storage box (3) through the screw installation, water flow sensor (22) have been placed at the top of base (14), be connected with between the water inlet of water flow sensor (22) and the delivery port of miniature immersible pump (1) drain pipe (2), the delivery port of water flow sensor (22) is connected with adjustable water pipe (4), the one end of adjustable water pipe (4) is connected with water pipe fixed establishment, water pipe fixed establishment includes mount pad (31), the through-hole has been seted up on the surface of mount pad (31), the one end of adjustable water pipe (4) is pegged graft in the inside of through-hole, screw (34) with the axle center setting have been seted up on the surface of mount pad (31), an adjusting screw rod (24) is installed in the screw hole (34) in a threaded manner, a plurality of strip holes (27) extending to the side face of the mounting seat (31) are formed in the surface of the mounting seat, fixing rods (30) are installed on the side faces of the strip holes (27) through screws, and sliding pipe fittings (28) are slidably sleeved on the surfaces of the fixing rods (30); the bottom of each of the plurality of sliding pipe fittings (28) is provided with a clamping plate (29) through a screw, the bottom of each of the plurality of clamping plates (29) extends to the lower part of the mounting seat (31), the top of each of the plurality of sliding pipe fittings (28) is movably provided with a connecting rod (26) through a pin shaft, a circular plate (25) is arranged above each of the plurality of connecting rods (26), the circular plate (25) is fixedly sleeved on the surface of the adjusting screw rod (24), the circular plate (25) and the adjusting screw rod (24) are coaxially arranged, and one end of each of the plurality of connecting rods (26) is provided with a fixed shaft (32) through a screw;

one end of each fixed shaft (32) penetrates through the bottom of the circular plate (25) and extends to the upper side of the circular plate, so that the inner wall of the circular plate (25) rotates along the surface of the fixed shaft (32), the top end of each adjusting screw rod (24) is sleeved with a fixed solenoid (23), the top end of each fixed solenoid (23) is provided with a second connecting plate (8) through a screw, one end of each second connecting plate (8) is provided with a supporting plate (33) through a screw, the bottom end of each supporting plate (33) is arranged at the top of the corresponding mounting seat (31) through a screw, the top of the base (14) is provided with a height adjusting mechanism, each height adjusting mechanism comprises a mounting solenoid (13), the top end of each mounting solenoid (13) is inserted with a mounting screw rod (12), the top end of each mounting screw rod (12) is fixedly provided with a bearing seat (37), and the outer ring surface of each bearing seat (37) is provided with a top plate (6) through a screw, one end of the top plate (6) extends to the upper part of the adjustable water pipe (4), a first connecting plate (7) is installed at the bottom of the top plate (6) through a screw, a limiting pipe fitting (5) is installed at the bottom end of the first connecting plate (7) through a screw, the adjustable water pipe (4) is inserted in the limiting pipe fitting (5), the top plate (6) is connected with the mounting screw rod (12) through a positioning mechanism, the positioning mechanism comprises a limiting plate (11) and a screw hole (10), the screw hole (10) is formed in the surface of the top plate (6),

a first lead screw (9) is inserted into the internal thread of the screw hole (10), a mounting shaft (36) which is coaxially arranged is mounted at the bottom end of the first lead screw (9), two fixed circular ring pieces (41) are fixedly sleeved on the surface of the mounting shaft (36), a second movable block (38) is movably sleeved on the surface of the mounting shaft (36), the surfaces of the two fixed circular ring pieces (41) are respectively contacted with the top and the bottom of the second movable block (38), a plurality of tooth blocks (39) are mounted on the side surface of the second movable block (38) through screws, a plurality of tooth sockets (40) which are arranged at equal angles are formed along the arc side surface of the limiting plate (11), the tooth blocks (39) are respectively inserted into the tooth sockets (40), a PLC sensor (21) is mounted on the surface of the base (14) through screws, and the PLC sensor (21) is respectively connected with the miniature submersible pump (1) and the water flow sensor (22) through conducting wires, and a chemical instrument fixing mechanism is arranged at the top of the base (14).

2. A chemical instrumentation detection device according to claim 1 wherein said elongated holes (27) are provided in at least three, said three elongated holes (27) being arranged in equal angular intervals.

3. A chemical instrument metering and detecting device according to claim 1, characterized in that a rubber block (35) is installed at the bottom end of the clamping plate (29) through a screw, and anti-skid lines are arranged on the side surface of the rubber block (35).

4. The chemical instrument metering and detecting device of claim 1, wherein the chemical instrument fixing mechanism comprises a fixing block (18), one side of the fixing block (18) is provided with first movable blocks (19) which are arranged in parallel, two ends of each first movable block (19) are provided with mounting blocks (20) through screws, two ends of each fixing block (18) are provided with a fixing pipe (17) through screws, two sides of each mounting block (20) are provided with second lead screws (15) through screws, one ends of the second lead screws (15) penetrate through the fixing pipe (17) and extend to one side of the fixing pipe, one end of each second lead screw (15) is provided with a threaded pipe (16) in a threaded sleeve, and the end part of each threaded pipe (16) is in contact with the end part of the corresponding fixing pipe (17).

5. A chemical instrumentation measuring device according to claim 4 wherein a rubber pad is bonded to the side corresponding to the position between the fixed block (18) and the first movable block (19).

6. A chemical instrumentation detection device according to claim 1 wherein the top of the reservoir (3) is open and one end of the drain pipe (2) passes through the opening.

7. A chemo-metric detection device according to claim 1, characterized in that the length of the fixed shaft (32) is greater than the thickness of the circular plate (25).

8. A chemical instrumentation detection device according to claim 1 wherein the length of the securing rod (30) is greater than the length of the elongated hole (27), one end of the securing rod (30) extending outside of the elongated hole (27).

9. A chemo-metric detection device according to claim 1, characterized in that the blocks (39) are provided in at least five, the five blocks (39) being arranged equidistantly, the blocks (39) and the gullets (40) each being pyramid-shaped.

10. A chemical instrumentation detection device according to claim 1 wherein the adjustable water tube (4) is a flexible hose.