CN211603216U

CN211603216U - Multi-channel distributing valve

Info

Publication number: CN211603216U
Application number: CN201922333693.7U
Authority: CN
Inventors: 庄雷
Original assignee: JIANGSU AUDICOM MEDICAL TECHNOLOGY CO LTD
Current assignee: JIANGSU AUDICOM MEDICAL TECHNOLOGY CO LTD
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-29
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a multichannel distributing valve belongs to medical auxiliary assembly technical field. The utility model discloses a housing, the front side of casing inner chamber is provided with the bearing frame, the front side of bearing frame is provided with the pivot shell, the rear side of pivot shell inner chamber is provided with rolling bearing, rolling bearing's front side and the inner chamber that is located the pivot shell are provided with thrust bearing, thrust bearing's front side and the inner chamber that is located the pivot shell are provided with spring assembly, spring assembly's front is provided with the pivot, the back of pivot runs through to thrust bearing's inner chamber. The utility model has the advantages of being simple in operation, can not cause the distributing valve unstable performance, reduce the degree of difficulty of maintenance, can satisfy user's demand.

Description

Multi-channel distributing valve

Technical Field

The utility model belongs to the technical field of medical auxiliary assembly, specifically be multichannel distributing valve.

Background

Clinical researches on diabetes control and complications show that the content of glycated hemoglobin (HbA1c) can reflect the average blood glucose level of a human body measured 2-3 months before, the clinical significance is provided for the evaluation of a blood glucose control scheme and the blood glucose control level of a diabetic patient, the glycated hemoglobin (HbA1c) is a golden index for diabetes diagnosis, the number of diabetic patients in China is increased rapidly along with the improvement of living standard, the importance of a glycated hemoglobin analyzer in clinical examination is highlighted day by day, a liquid flow path distribution valve is a core component in the glycated hemoglobin analyzer, the main function of the liquid flow path distribution valve is to control analytical reagents and analytical samples to enter an analytical system and to be switched with each other, a multichannel distribution valve is required to be used, and the existing multichannel distribution valve has the following defects: the structure is complex to operate, the performance of the distribution valve is unstable, the maintenance difficulty is increased, and the requirement of a user cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multichannel distributing valve possesses simple structure operation's advantage, has solved current multichannel distributing valve structure complex operation's problem.

In order to achieve the above object, the utility model provides a following technical scheme: multichannel distributing valve, which comprises a housin, the front side of casing inner chamber is provided with the bearing frame, the front side of bearing frame is provided with the pivot shell, the rear side of pivot shell inner chamber is provided with rolling bearing, rolling bearing's front side and the inner chamber that is located the pivot shell are provided with thrust bearing, thrust bearing's front side and the inner chamber that is located the pivot shell are provided with spring assembly, spring assembly's front is provided with the pivot, the back of pivot runs through to thrust bearing's inner chamber.

The front side of pivot is provided with the passageway pad, the front side of pivot is provided with pivot wearing and tearing cover, the front side of passageway pad is provided with the hole pad, the arc wall has been seted up on the surface of passageway pad, and the quantity of arc wall is three.

The front side of the hole pad is provided with a six-hole joint, the front side of the six-hole joint is provided with a quantitative ring, and the quantitative ring is connected with an outer wall pipeline.

The rear side of casing is provided with step motor, step motor's output runs through to the inner chamber of casing and fixedly connected with motor shaft, motor shaft's surface is provided with the pin.

One side of casing is provided with the micro-gap switch safety cover, the inner chamber of micro-gap switch safety cover is provided with super little micro-gap switch, the top of casing is provided with the PCB control panel, the front side and the rear side at PCB control panel top are fixed through the top of knob and casing.

The rotating shaft, the channel pad, the rotating shaft abrasion sleeve, the hole pad and the six-hole joint are made of one or more of ceramics, metals and peek (plastics) in a composite mode, and the structure is abrasion-resistant and high-pressure-resistant, so that liquid cannot be leaked out, and liquid circulation can be accurately circulated to other pipelines, and liquid circulation is guaranteed.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses reached structure easy operation's advantage, can not cause the distributing valve unstable performance, reduced the degree of difficulty of maintenance, can satisfy user's demand.

2. The utility model discloses a set up the motor shaft, a be used for connecting step motor and pivot, make the structure after the pivot can be independent, be convenient for install the maintenance, the epaxial pin can trigger super small micro-gap switch, through setting up the pivot shell, a be used for protecting the internals, avoid external harmful factors such as dust to influence the life of pivot shell internals, through setting up spring assembly, a be used for providing the packing force, make the passageway fill up, can laminate closely between hole pad and the six pore joint three, through setting up the hole pad, a be used for connecting passageway pad and six pore joints, avoid six pore joint wearing and tearing, six pore joint's life has been prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a stepping motor; 2. a PCB control board; 3. a motor shaft; 4. a housing; 5. an ultra-small microswitch; 6. a microswitch protective cover; 7. a bearing seat; 8. a shaft housing; 9. a rotating bearing; 10. a thrust bearing; 11. a spring set; 12. a rotating shaft; 13. a channel pad; 14. a rotating shaft abrasion sleeve; 15. a hole pad; 16. an overflow drain gasket; 17. six hole joints.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the multichannel distribution valve comprises a housing 4, a stepping motor 1 is arranged at the rear side of the housing 4, an output end of the stepping motor 1 penetrates through an inner cavity of the housing 4 and is fixedly connected with a motor rotating shaft 3, the stepping motor 1 and the rotating shaft 12 are connected by arranging the motor rotating shaft 3, so that the structure behind the rotating shaft 12 can be independent and is convenient to install and maintain, a pin on the rotating shaft 12 can trigger a super-small microswitch 5, a pin is arranged on the surface of the motor rotating shaft 3, a microswitch protection cover 6 is arranged at one side of the housing 4, the inner cavity of the microswitch protection cover 6 is provided with the super-small microswitch 5, a PCB control panel 2 is arranged at the top of the housing 4, the front side and the rear side of the top of the PCB control panel 2 are fixed with the top of the housing 4 by knobs, a bearing seat 7 is arranged at the front side of the inner cavity of, the rotary shaft bearing device is used for protecting internal parts and avoiding the influence of external adverse factors such as dust on the service life of the internal parts of the rotary shaft shell 8, the rotary bearing 9 is arranged on the rear side of the inner cavity of the rotary shaft shell 8, the thrust bearing 10 is arranged on the front side of the rotary bearing 9 and in the inner cavity of the rotary shaft shell 8, the spring group 11 is arranged on the front side of the thrust bearing 10 and in the inner cavity of the rotary shaft shell 8 and used for providing pressing force through the spring group 11 so that the channel pad 13, the hole pad 15 and the six-hole joint 16 can be tightly attached, the rotary shaft 12 is arranged on the front side of the spring group 11, the channel pad 13 is arranged on the front side of the rotary shaft 12, the rotary shaft abrasion sleeve 14 is arranged on the front side of the rotary shaft 12, the hole pad 15 is arranged on the front side of the channel pad 13 and used for connecting the channel pad 13 and the six-hole joint 16 to avoid abrasion of the six-hole joint 16, the service life of, the front side of the overflow leakage gasket 16 is provided with six hole joints 17, the front side of the six hole joints 17 is provided with a quantitative ring, the quantitative ring is connected with an outer wall pipeline, the surface of the channel pad 13 is provided with arc-shaped grooves, the number of the arc-shaped grooves is three, the back of the rotating shaft 12 penetrates through an inner cavity of the thrust bearing 10, and by arranging the stepping motor 1, the PCB control panel 2, the motor rotating shaft 3, the shell 4, the ultra-small microswitch 5, the microswitch protective cover 6, the bearing seat 7, the rotating shaft shell 8, the rotating bearing 9, the thrust bearing 10, the spring group 11, the rotating shaft 12, the channel pad 13, the rotating shaft abrasion sleeve 14, the hole pad 15, the overflow leakage gasket 16 and the six hole joints 17 are mutually matched, the advantages of simple structure operation are achieved, the performance instability of the distribution valve cannot be caused, the difficulty of maintenance is reduced, and the.

Further, the rotating shaft 12, the channel pad 13, the rotating shaft wear sleeve 14, the hole pad 15 and the six-hole joint 17 are made of one or more of ceramics, metals and peek (plastics) in a composite mode, and the structure is wear-resistant and high-pressure-resistant, so that liquid cannot leak out, and can accurately circulate to other pipelines, and the liquid circulation is guaranteed.

When in use, the stepping motor 1 drives the motor rotating shaft 3 to rotate, the motor rotating shaft 3 can drive the rotating shaft 12 to rotate, thereby driving the channel pad 13 to rotate, as the channel pad 13 is provided with three arc-shaped grooves which correspond to six bottom holes of the six-hole joint 17, after the channel rotates, the communication section of the hole corresponding to the six-hole joint 17 is changed, thereby achieving the purpose of channel switching, as the three arc-shaped grooves on the channel pad 13 and the holes of the six-hole joint 17 are uniformly distributed, the motor rotating shaft 3 can only rotate 60 degrees from the initial position each time, the flow path needs to be reset after switching, a positioning column is embedded on the motor rotating shaft 3 for triggering the ultra-small microswitch 5 during rotation, the ultra-small microswitch 5 is arranged on one side of 60 degrees of the initial position, after the motor rotating shaft 3 triggers the ultra-small microswitch 5, the stepping motor 1 pauses, the pause time is controlled by software, if the starting is started to find the initial position at the moment, the stepping motor 1 is reset in short time, if the instrument analysis process is carried out, the stepping motor 1 is reset after the flow path switching is finished in long time, a spring group 11 is designed on a rotating shaft 12 and used for supporting a channel pad 13, a hole pad 15 and a six-hole connector 17, so that the channel pad 13, the hole pad 15 and the six-hole connector are tightly attached and have no leakage, and the larger liquid pressure in a system can be borne, the latest technology is adopted during the design of a PCB control board 2, more subdivision of the stepping motor 1 is realized, the rotation of 60 degrees can be controlled more accurately, and the ultra-small microswitch 5 can be triggered to stop more quickly, so that the advantage of simple structure operation is achieved.

The standard parts used in the application documents can be purchased from the market, all the parts in the application documents are universal standard parts or parts known by technicians in the field, the structure and the principle of the parts are known by technicians through technical manuals or conventional experimental methods, the parts can be customized according to the description of the specification and the drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt the conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and the specific description is not given.

Claims

1. Multichannel distribution valve, including casing (4), characterized by: the front side of casing (4) inner chamber is provided with bearing frame (7), the front side of bearing frame (7) is provided with pivot shell (8), the rear side of pivot shell (8) inner chamber is provided with rolling bearing (9), the front side of rolling bearing (9) and the inner chamber that is located pivot shell (8) are provided with thrust bearing (10), the front side of thrust bearing (10) and the inner chamber that is located pivot shell (8) are provided with spring assembly (11), the front of spring assembly (11) is provided with pivot (12), the inner chamber to thrust bearing (10) is run through at the back of pivot (12).

2. The multi-channel dispensing valve of claim 1, wherein: the front side of pivot (12) is provided with passageway pad (13), the front side of pivot passageway pad (13) is provided with pivot wearing and tearing cover (14), the front side of wearing and tearing cover (14) is provided with hole pad (15), the arc wall has been seted up on the surface of passageway pad (13), and the quantity of arc wall is three.

3. The multi-channel dispensing valve of claim 2, wherein: the front side of the hole pad (15) is provided with an overflow leakage gasket (16), the front side of the overflow leakage gasket (16) is provided with a six-hole joint (17), the front side of the six-hole joint (17) is provided with a quantitative ring, and the quantitative ring is connected with an outer wall pipeline.

4. The multi-channel dispensing valve of claim 1, wherein: the rear side of casing (4) is provided with step motor (1), the output of step motor (1) runs through to the inner chamber and the fixedly connected with motor shaft (3) of casing (4), the surface of motor shaft (3) is provided with the pin.

5. The multi-channel dispensing valve of claim 1, wherein: one side of casing (4) is provided with micro-gap switch safety cover (6), the inner chamber of micro-gap switch safety cover (6) is provided with super little micro-gap switch (5), the top of casing (4) is provided with PCB control panel (2), the front side and the rear side at PCB control panel (2) top are passed through the knob and are fixed with the top of casing (4).