CN209841669U

CN209841669U - Photoelectric metering assembly

Info

Publication number: CN209841669U
Application number: CN201920475303.7U
Authority: CN
Inventors: 左天罡; 李艳伟
Original assignee: Jiangsu Jucong Environmental Technology Co Ltd
Current assignee: Jiangsu Jucong Environmental Technology Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2019-12-24
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a photoelectric metering subassembly: including hollow casing, the vertical transparent metering tube of installing in the casing, be equipped with photoelectric component in the casing, photoelectric component includes light emitter and photoreceiver, the light that the light emitter launched is received by photoreceiver after passing the metering tube, all be equipped with pipy connecting seat on the upper end plate of casing, the lower end plate, the metering tube compresses tightly installs two from top to bottom between the connecting seat, the inner of connecting seat with the pipe connector mouth is established to metering tube intercommunication, outer end, the axial position of connecting seat is adjustable. The metering tube of the utility model is clamped between the two connecting seats, the distance between the connecting seats can be adjusted according to the actual length of the metering tube, and the precision requirement of the metering tube is reduced, thereby reducing the processing cost; and the connecting seat can also exert certain pre-pressure on the metering tube, so that the sealing performance of the sealing performance metering tube and the connecting seat is ensured.

Description

Photoelectric metering assembly

Technical Field

The utility model relates to a water quality testing technique and equipment field, concretely relates to photoelectric metering subassembly.

Background

With the development of science and technology, the living standard of people is higher and higher, but the improvement of the living of substances is accompanied with the aggravation of environmental pollution, especially water quality pollution. The water quality analyzer is a device for monitoring water quality and has the advantages of accurate monitoring data and good real-time performance.

Patent document 1 discloses a water quality detector, which integrates a peristaltic pump, a digestion device, a multi-way solenoid valve, a quantitative ring pipe, a photoelectric metering component, a plurality of solenoid valves, a programmable controller and other devices into one device, and performs quantitative metering through the quantitative ring pipe and the photoelectric metering component, thereby having the advantages of high quantitative sampling precision and accurate metering. The photoelectric metering assembly is used for accurate metering and comprises a support, a constant volume pipe and a photoelectric assembly, the constant volume pipe is mostly a quartz pipe, the upper end and the lower end of the constant volume pipe are connected with a pipeline and used for liquid drainage and liquid inlet, and generally speaking, the constant volume pipe is required to have higher manufacturing precision in order to reduce liquid leakage risks.

Patent document 1: CN 107860614A.

SUMMERY OF THE UTILITY MODEL

In order to reduce the manufacturing accuracy of constant volume pipe, reduce the weeping risk simultaneously, the utility model provides a photoelectric metering subassembly.

The utility model adopts the technical scheme as follows:

the utility model provides a photoelectric metering assembly, includes hollow casing, the transparent metering tube is vertically installed in the casing, be equipped with photoelectric assembly in the casing, photoelectric assembly includes light emitter and photoreceiver, the light that the light emitter transmitted is received by photoreceiver after passing the metering tube, all be equipped with pipy connecting seat on the upper end plate of casing, the lower end plate, the metering tube compresses tightly installs two from top to bottom between the connecting seat, the inner of connecting seat with the pipe connector mouth is established to metering tube intercommunication, outer end, the axial position of connecting seat is adjustable.

The utility model has the advantages that: the metering tube of the utility model is clamped between the two connecting seats, the distance between the connecting seats can be adjusted according to the actual length of the metering tube, and the precision requirement of the metering tube is reduced, thereby reducing the processing cost; and the connecting seat can also exert certain pre-pressure on the metering tube, so that the sealing performance of the sealing performance metering tube and the connecting seat is ensured.

Preferably: the pipe joint port is a fine thread port.

Preferably: and the upper end plate and the lower end plate are provided with mounting threaded holes, and the connecting seat is correspondingly provided with a threaded mounting section.

Preferably: the connecting seat is provided with an operation section at the outer side of the upper end plate and the lower end plate.

Preferably: and a tubular tetrafluoro block is arranged between the metering pipe and the connecting seat.

Preferably: the connecting seat is provided with a mounting hole close to one side of the metering pipe, the tetrafluoro block is assembled in the mounting hole, and the tetrafluoro block is provided with a plug hole matched with the metering pipe.

Preferably: the tetrafluoro block is in clearance fit with the mounting hole, and a sealing ring is arranged between the tetrafluoro block and the connecting seat.

Preferably: the tetrafluoro block is close to one side of connecting seat is equipped with the heavy platform hole, the thickness of sealing washer is greater than the degree of depth in heavy platform hole, the internal diameter of sealing washer is greater than the diameter of pipe connector mouth.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention (omitting the optoelectronic device).

Fig. 2 is an exploded cross-sectional view of an embodiment of the present invention.

Fig. 3 is a schematic front view of the housing in the embodiment of the present invention.

Fig. 4 is a view of the housing in the embodiment of the present invention.

Fig. 5 is a view of the housing in the embodiment of the present invention.

Fig. 6 is a C-C sectional view of a housing in an embodiment of the invention.

Fig. 7 is a schematic view of a connection seat in an embodiment of the present invention.

Fig. 8 is a schematic sectional view of the connection seat in the embodiment of the present invention.

The device comprises a shell 1, a metering pipe 2, a connecting seat 3, a tetrafluoro block 4, a sealing ring 5, an upper end plate 101, a lower end plate 102, a mounting threaded hole 103, a pipe joint port 301, a threaded mounting section 302, an operation section 303, a mounting hole 304, a plug hole 401 and a counter sink hole 402.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

In the embodiment, as shown in fig. 1 ~ 8, a photoelectric metering assembly includes a hollow housing 1, a transparent metering tube 2 is vertically installed in the housing 1, a photoelectric assembly is installed in the housing 1, the photoelectric assembly includes a light emitter and a light receiver, light emitted by the light emitter passes through the metering tube 2 and is received by the light receiver, tubular connecting seats 3 are respectively installed on an upper end plate 101 and a lower end plate 102 of the housing 1, the metering tube 2 is tightly pressed and installed between the upper and lower connecting seats 3, the inner end of the connecting seat 3 is communicated with the metering tube 2, the outer end of the connecting seat 3 is provided with a tube joint 301, and the axial position of the connecting seat 3 is adjustable.

In the embodiment, as shown in fig. 7 and 8: the pipe joint port 301 is a fine threaded port. Specifically, the pipe joint opening 301 adopts 1/4-28UNF, which can ensure better sealing performance between the pipe joint and the pipe joint opening 301.

In the embodiment, as shown in fig. 2 ~ 6, the upper end plate 101 and the lower end plate 102 are provided with mounting threaded holes 103, and the connecting seat 3 is correspondingly provided with threaded mounting sections 302, in the structure of the embodiment, the connecting mode between the connecting seat 3 and the upper end plate 101 and the lower end plate 102 is simple and reliable, and the adjustment is convenient.

In the embodiment, as shown in fig. 2 ~ 8, the connecting seat 3 is provided with an operating section 303 at the outer side of the upper end plate 101 and the lower end plate 102, the operating section 303 of the connecting seat 3 in this embodiment is exposed, and the shape of the operating section is a hand wheel or a nut, so as to facilitate adjustment.

In the example, as shown in fig. 2: and a tubular tetrafluoro block 4 is arranged between the metering tube 2 and the connecting seat 3. Tetrafluoro piece 4 can play the cushioning effect to a certain extent, avoids producing hard contact between metering tube 2 and connecting seat 3, prevents that metering tube 2 from damaging. And the tetrafluoro block 4 has better sealing performance to avoid leakage.

In the example, as shown in fig. 2: a mounting hole 304 is formed in one side, close to the metering pipe 2, of the connecting seat 3, the tetrafluoro block 4 is assembled in the mounting hole 304, and an inserting hole 401 matched with the metering pipe 2 is formed in the tetrafluoro block 4; the tetrafluoro block 4 is in clearance fit with the mounting hole 304, and a sealing ring 5 is arranged between the tetrafluoro block 4 and the connecting seat 3. Connecting seat 3 and tetrafluoro piece 4 of this embodiment are swing joint, and when connecting seat 3 rotated, connecting seat 3 and tetrafluoro piece 4 relative rotation, tetrafluoro piece 4 and metering tube 2 relatively fixed, and sealing washer 5 can guarantee connecting seat 3 and tetrafluoro piece 4's sealing performance again.

In the example, as shown in fig. 2: one side of the tetrafluoro block 4, which is close to the connecting seat 3, is provided with a counter sink hole 402, the thickness of the sealing ring 5 is larger than the depth of the counter sink hole 402, and the inner diameter of the sealing ring 5 is larger than the diameter of the pipe joint port 301. This embodiment structure, sealing washer 5 can be in compression state, consequently can guarantee good sealing performance, avoids appearing leaking for the measurement is accurate.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. A photoelectric metering component comprises a hollow shell (1), a transparent metering tube (2) is vertically installed in the shell (1), a photoelectric component is arranged in the shell (1), the photoelectric component comprises a light emitter and a light receiver, light emitted by the light emitter passes through the metering tube (2) and then is received by the light receiver, and the photoelectric metering component is characterized in that: all be equipped with pipy connecting seat (3) on upper end plate (101), lower extreme board (102) of casing (1), metering tube (2) compress tightly and install two from top to bottom between connecting seat (3), the inner of connecting seat (3) with metering tube (2) intercommunication, outer end establish pipe connector mouth (301), the axial position of connecting seat (3) is adjustable.

2. The photoelectric metering assembly of claim 1, wherein: the pipe joint port (301) is a fine thread port.

3. The photoelectric metering assembly of claim 1, wherein: and mounting threaded holes (103) are formed in the upper end plate (101) and the lower end plate (102), and threaded mounting sections (302) are correspondingly arranged on the connecting seat (3).

4. The photoelectric metering assembly of claim 3, wherein: the connecting seat (3) is provided with an operation section (303) at the outer sides of the upper end plate (101) and the lower end plate (102).

5. The photoelectric metering assembly of claim 1, wherein: and a tubular tetrafluoro block (4) is arranged between the metering tube (2) and the connecting seat (3).

6. The photoelectric metering assembly of claim 5, wherein: the connecting seat (3) is close to and is equipped with mounting hole (304) to metering tube (2) one side, tetrafluoro piece (4) assembly is in mounting hole (304), be equipped with on tetrafluoro piece (4) with metering tube (2) complex spliced eye (401).

7. The photoelectric metering assembly of claim 6, wherein: clearance fit between tetrafluoro piece (4) and mounting hole (304), be equipped with sealing washer (5) between tetrafluoro piece (4) and connecting seat (3).

8. The photoelectric metering assembly of claim 7, wherein: tetrafluoro piece (4) lean on to one side of connecting seat (3) is equipped with heavy platform hole (402), the thickness of sealing washer (5) is greater than the degree of depth in heavy platform hole (402), the internal diameter of sealing washer (5) is greater than the diameter of pipe connector mouth (301).