CN2584861Y

CN2584861Y - Vacuum generating device

Info

Publication number: CN2584861Y
Application number: CN 02281462
Authority: CN
Inventors: 姚劲松; 王丽秋; 王弼陡
Original assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Current assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Priority date: 2002-11-29
Filing date: 2002-11-29
Publication date: 2003-11-05
Anticipated expiration: 2012-11-29

Abstract

The utility model belongs to an electromechanical integration system, which relates to a vacuum generating device used for a medical biochemistry analyzer. The utility model is composed of a casing 2-1, a pressure sensing connecting pipe 2-2, a vacuum pump 2-3, a pressure sensor 2-4, an air inlet pipe 2-5, a screw 2-6, a bracket 2-7, a sealing plug 2-8, an end plate 2-9, a liquid level sensor 2-10, a vacuum cavity cylinder 2-11, a partition plate 2-12, and a rear sealing plug 2-13. The utility model has the advantages that the liquid level sensor is used for detecting liquid level, the partition plate is used for correspondingly increase a vacuum cavity body, and the purposes of controlling the liquid level in the vacuum cavity body, increasing using space, and effectively protecting the vacuum pump can be achieved. The utility model provides a vacuum generating device which can send alarm and can increase the useful space. The utility model can be used for a large medical biochemistry analyzer and becomes an indispensable instrument that large and medium hospitals carry out diagnosis for the illness state of patients, and the utility model can also be used for biological engineering, pharmaceutical engineering, etc.

Description

A kind of vacuum generating device

Technical field: the utility model belongs to electro-mechanical system, relates to the vacuum generating device that uses on the medical biochemical analyzer.

Background technique: large-scale medical biochemical analyzer becomes the imperative equipment that big-and-middle-sized hospital diagnoses conditions of patients, for removing vapour, handles the more accurate medical distilled water that micro syringe need be used of the result who makes measurement, basic skills is with the gas sucking-off in the water that flowing in the liquid road, and this just needs a vacuum generating device; The solution of original technology as shown in Figure 1, it is made up of shell (1), pressure sensing connecting leg (2), vacuum pump (3), pressure transducer (4), suction tude (5), screw (6), vacuum cavity (7), sealing plug (8).

Detailed content of the present utility model: when working for solving device, easily water is brought in the vacuum cavity, when liquid level rises to certain altitude, vacuum pump can suck water problems such as causing fault in the pump housing, and the purpose of this utility model provides a kind of vacuum generating device that can report to the police and can improve the useful space.

Of the present utility model basic composition is: as shown in Figure 2: form by shell, pressure sensing connecting leg, vacuum pump, pressure transducer, suction tude, screw, support, sealing plug, end plate, liquid level sensor, vacuum chamber tube, dividing plate, back sealing plug, correlation between each parts is to make circular hole in the center of dividing plate, and two boss punishment that two dividing plates are separately fixed at vacuum chamber tube endoporus is slit into cavity, the two ends that two end plates is separately fixed at the vacuum chamber tube form assembly a; Fixed in position has liquid level sensor and suction tude to form assembly b in sealing plug, assembly b is inserted in the hole on the vacuum chamber tube top among the assembly a then, and assembly a is fixedlyed connected with shell with support respectively; Back sealing plug is inserted in the hole on the vacuum chamber tube top among the assembly a.

Its basic functional principle is to open when making work when system, with the water of bringing in the vacuum cavity, when the liquid of one of them cavity rises to the circular hole of dividing plate, liquid flows to second cavity, and when the liquid in second cavity rose to the circular hole of dividing plate, liquid flowed to the 3rd cavity, liquid in the 3rd cavity rises to certain position constantly, liquid is contacted with contact below the liquid level sensor, and alarm signal is sent in the liquid level sensor conducting.

The utility model has the advantages that and adopt the liquid level sensor detection of liquid level; use dividing plate that the vacuum chamber tube is divided into a plurality of cavitys; improved the mode of vacuum cavity relatively; reach liquid level in the control vacuum cavity; improve usage space, effectively protect the purpose of vacuum pump, a kind of vacuum generating device that can report to the police and can improve the useful space is provided.The utility model can be used for large-scale medical biochemical analyzer becomes the imperative equipment that big-and-middle-sized hospital diagnoses conditions of patients, also can be used for aspects such as bioengineering, pharmaceutical engineering.

Description of drawings:

Fig. 1 is the structural representation of background technique

Fig. 2 is an embodiment's of the utility model a structural front view

Fig. 3 is the plan view of the utility model Fig. 2

Embodiment is as shown in Figures 2 and 3: by shell (2-1), pressure sensing connecting leg (2-2), vacuum pump (2-3), pressure transducer (2-4), suction tude (2-5), screw (2-6), support (2-7) sealing plug (2-8); End plate (2-9); Liquid level sensor (2-10); Vacuum chamber tube (2-11); Dividing plate (2-12); Back sealing plug (2-13) is formed, and shell (2-1) is made with normal carbon steel plate (Q235); The plastic flexible pipe of pressure sensing connecting leg (2-2) outsourcing φ 4mm; Vacuum pump (2-3) outsourcing ZW-700A vacuum pump; Pressure transducer (2-4) outsourcing, suction tude (2-5) outsourcing, vacuum cavity (2-6) adopts poly-third vinyl material to make drum shape; Support (2-7) is made right angle rack with aluminum alloy; Sealing plug (2-8) uses nitrile rubber turning to be processed into; End plate (2-9) adopts colourless plexiglass to make; Liquid level sensor (2-10) outsourcing SV-1 liquid level sensor; Vacuum chamber tube (2-11) adopts poly-third vinyl material to make, the bonding vacuum chamber tube of two end plates (2-9) (2-11) two ends; Dividing plate (2-12) adopts colourless plexiglass to make, and it is that the circular hole of 10mm is with the gluing boss place that is connected on vacuum chamber tube (2-11) endoporus of AB that a diameter is made in two dividing plates (2-12) center; Back sealing plug (2-13) uses nitrile rubber turning to be processed into.Dividing plate can adopt polylith that the vacuum chamber tube is divided into a plurality of cavitys.

Claims

1, a kind of vacuum generating device of practicality, comprise shell (2-1), pressure sensing connecting leg (2-2), vacuum pump (2-3), pressure transducer (2-4), suction tude (2-5), screw (2-6), it is characterized in that also including: support (2-7), sealing plug (2-8), end plate (2-9), liquid level sensor (2-10), vacuum chamber tube (2-11), dividing plate (2-12), back sealing plug (2-13), center at dividing plate (2-12) makes circular hole, and two dividing plates (2-12) are separately fixed at two boss places of vacuum chamber tube (2-11) endoporus, and the two ends that two end plates (2-9) is separately fixed at vacuum chamber tube (2-1 1) form assembly a; Fixed in position has liquid level sensor (2-10) and suction tude (2-5) to form assembly b in sealing plug (2-8), then assembly b is inserted in the hole on vacuum chamber tube (2-11) top among the assembly a, and assembly a is fixedlyed connected with shell (1) with support (2-7) respectively; Back sealing plug (2-13) is inserted in the hole on vacuum chamber tube (2-11) top among the assembly a.