CN2689006Y

CN2689006Y - Air intaking and outtaking actuating valve of experimental animal cage

Info

Publication number: CN2689006Y
Application number: CN 200420049032
Authority: CN
Inventors: 王长江; 徐平; 冯建洪
Original assignee: Suzhou Fengshi Laboratory Animal Equipment Co ltd
Current assignee: Suzhou Fengshi Laboratory Animal Equipment Co ltd
Priority date: 2004-04-12
Filing date: 2004-04-12
Publication date: 2005-03-30
Anticipated expiration: 2014-04-12

Abstract

The utility model relates to an air intaking and outtake actuating valve of experimental animal cage device, comprising an internal cover seat arranged at the inner part of the wall of the container and an external cover loop arranged at the outer wall of the cage container. The internal cover seat and the external cover loop cooperate by screw thread. A through hole is arranged in the middle of the utility model to blow the air in and out. The internal cover seat is provided with a gland which compactly presses against a cover port, the gland is connected with a gland seat bracket and a gland bracket by a pin shaft, the middle of the internal cover seat is provided with a spring fixed on the gland seat, and the gland seat is embedded in a gland seat cavity composed of limited blocks. The utility model which has advantages of simple structure and low cost can guarantee the inside and the external side of the cage to isolate, avoiding contaminated atmosphere entering the cage, harming experimental animal health and affecting experimental result. Therefore, the utility model can extensively be used for independent air blowing isolation combined cage.

Description

Animal used as test cage tool turnover wind switch valve

Technical field the utility model belongs to a kind of turnover wind switch valve, and particularly independent air-supply isolation experiment cage for animal tool is with passing in and out wind switch one-way valve.

Background technique before the utility model is made, does not have identical or akin technological scheme to occur by retrieval as yet.In the prior art, the inlets and putlets of ventilation of animal used as test cage tool often directly links to each other with in/out air tube.In order to keep the cleaning of air in the cage tool cavity, also there is the pressure that utilizes spring that tinsel is close on the cage for animal tool inwall, during use spring is pressurizeed, tinsel and inwall are broken away from produce the slit, reach the purpose of air intake or air-out.This technological scheme relatively simple for structure still, can not be controlled air quantity effectively, also is difficult for guaranteeing and extraneous isolation, thereby makes polluted ambient air enter animal used as test cage tool, influences the health of big white mouse one class animal used as test.

Model utility content the purpose of this utility model, be to seek a kind of simple in structure, cost is low, can keep the cage tool effectively to isolate with extraneous again, ensure sealability, the atmosphere of stopping to pollute enters the cage tool, thereby pollutes animal used as test, harm animal health, influences result of experiment.The switch valve of this turnover wind is an one-way cock, also is convenient to control air quantity.

Above-mentioned purpose is achieved through the following technical solutions: the turnover wind switch valve that this animal used as test cage tool uses is included in the interior cage of cage tool pars intramuralis and is installed in outer decorative cover two major parts of cage tool wall outside.Internal thread beyond the interior cage on screw thread and the outer decorative cover matches, and has through hole to link to each other in the middle of both.Unlike the prior art be that interior cage is provided with capping, capping links to each other with the capping support, the capping support inserts the closure base support, middlely connects with bearing pin, the closure base support is fixed on the closure base simultaneously.In the seat chamber that forms in the middle of the cage upper limit position block in closure base is installed in, insert respectively in the caulking groove of limiting stopper, fixing and smooth to obtain.On the bearing pin in the middle of the capping support, also be installed with spring, spring one end is pressed on the closure base, and the other end is pressed near on the capping stent cover of capping, is pressed on the protruding all around Gai Kou plane of inner cap block hole with certain pressure to guarantee capping, makes both tight connectings.

Valve can in time be opened when this one-way cock had guaranteed to link to each other with the clean air pipeline; And pipeline extracts late gate and in time closes, thereby reaches the cage tool and the external world is in isolation fully, ensured to be under the clean environment in the cage for animal tool, helps the acquisition of correct experimental result.Simultaneously, because the closing property of cage tool is also controlled the size of importing and emitting air quantity easily.This import and export switch valve simple structure, thus cheap for manufacturing cost.

Description of drawings Fig. 1 is the utility model structural representation;

Fig. 2 is installed in sectional drawing on the animal used as test cage tool wall for Fig. 1 switch valve.

Embodiment is described further technical solutions of the utility model below in conjunction with drawings and Examples: animal used as test cage tool turnover wind switch valve, main by the interior cage 12 that is installed in cage tool container wall 15 inboard inlets and putlets of ventilation and the outer decorative cover 10 of outside inlets and putlets of ventilation, be connected by screw thread 9 and screw thread 11, outer decorative cover 10 and interior cage 12 are all made with transparent non-toxic plastics.Interior cage 12 has the conical lid mouth 13 of projection, and the middle part has through hole 14 and outer decorative cover 10 middle parts to communicate, so that inflation and exhaust.On interior cage 12 seat surfaces that are provided with lid mouth 13, also be provided with three limiting stoppers 7, respectively be provided with caulking groove 8 on the limiting stopper 7, limiting stopper 7 can cast out with interior cage 12 one.7 of three limiting stoppers, utilize its caulking groove 8 to embed closure base 5.Closure base 5 is provided with closure base support 6, and both are stainless steel material and one time punching molded.Closure base support 6 is provided with pin shaft hole, with bearing pin 3 capping support 2 and its pin is lumped together, and the centre is with copper spring 4, and one of spring pin is pressed on the capping support 6; The other end is pressed on the capping support 2.Be connected with capping 1 on the capping support 2, both also are stainless steel material, and one time punching molded.Because the effect of spring, capping 1 are pressed on the lid mouth 13.Decorative cover 10 outside air intake pipe inserts by interior cage 12, opens capping 1 with pressure, feed clean air, operation is finished and is extracted air intake pipe, and capping 1 is closed immediately because of spring 4 effects, in order to avoid extraneous unclean air is sneaked into, cause cage tool cavity and extraneous absolute isolation; When the needs air-out, wind pipe by exhaust outlet switch valve and above-mentionedly finish air-out as a same reason, also guarantee cage tool cavity and extraneous isolation.Dimensions of the present utility model is looked the size of animal used as test cage tool inlets and putlets of ventilation and is prepared.

Claims

1. animal used as test cage tool passes in and out the wind switch valve, comprise interior cage (12) and outer decorative cover (10), through hole (14) is arranged in the middle of the interior cage (12), the outside has screw thread (11) and outer decorative cover inner hole thread (9) to be connected, it is characterized in that: interior cage (12) is provided with capping (1), capping (1) links to each other with bearing pin (3) with closure base support (6) by capping support (2), is fixed on the closure base (5), and is connected with interior cage (12); Also being provided with spring (4) in the middle of the capping support (2) also is through on the bearing pin (3) simultaneously.

2. animal used as test cage tool turnover wind switch valve according to claim 1, it is characterized in that: interior cage (12) is provided with the limiting stopper (7) of band caulking groove (8), in order to fixed sealing cage (5).

3. animal used as test cage tool turnover wind switch valve according to claim 1, it is characterized in that: the through hole (14) of interior cage (12) is provided with the lid mouth (13) of projection on every side, so that coincide with capping (1).