CN104832642A - Animal fixator - Google Patents
Animal fixator Download PDFInfo
- Publication number
- CN104832642A CN104832642A CN201410045353.3A CN201410045353A CN104832642A CN 104832642 A CN104832642 A CN 104832642A CN 201410045353 A CN201410045353 A CN 201410045353A CN 104832642 A CN104832642 A CN 104832642A
- Authority
- CN
- China
- Prior art keywords
- pull bar
- animal
- sealing head
- fixing device
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/12—Connection to driving members with piston-rods, e.g. rigid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention provides an animal fixator. The animal fixator comprises an animal fixing cavity and a fixing piston arranged in the animal fixing cavity; the fixing piston comprises a sealing end, a push rod, a pull rod moving hole formed in a central axis of the push rod, a pull rod positioned in the pull rod moving hole and a pull rod fixing device for fixing the pull rod; the pull rod and the sealing end are fixedly connected; and a first end of the push rod is in contact connection with the sealing end. The pull rod generates a pull force to press the sealing end; the pull rod fixing device is used for fixing the pull rod, the sealing end is in interference fit with the animal fixing cavity so that a sealing action is realized; and the sealing end cannot move in the animal fixing cavity so that an animal fixing action is realized When the sealing end needs to be moved or the piston needs to be moved out, firstly, the sealing end is restored to the original state, a larger clearance exists between the sealing end and the animal fixing cavity, so that the piston is convenient to move; and the piston is enabled to move in a cylinder body of the piston without large strength, and the sealing property is good.
Description
Technical field
The present invention relates to a kind of animal holder, particularly relate to a kind of animal holder.
Background technique
Inhalation toxicology be research can inhalation (inhalatio) body toxic action is occurred, development and the various conditions eliminated, rule and mechanism and to carrying out a science of hazard assessment by inhalation (inhalatio).Its professional research contents mainly contains: the physicochemical property of various material in air; The fundamental biological knowledge of respiratory tract; Inhalation (inhalatio) deposition in vivo and delay and and body in important system, interaction between organ; These interactions how to cause disease to produce.
Along with international inhalation toxicology research is increasingly active, lot of domestic experts has also been fully recognized that the significance of inhalation toxicology.From the object of research, there is the investigation to crowd, also have research animal being comprised to rat, mouse, rabbit, hamster etc.Animal holder for fixing animal has many kinds, such as, adopt piston to fix, in order to the sealability of guarantee, very tight between piston and piston barrel, just need very large strength that piston can be made to move in piston barrel.
Summary of the invention
The object of the invention is to provide a kind of animal holder, the piston of this animal holder is mobile in piston barrel does not need very large strength, and sealability is outstanding.
to achieve these goals, the invention provides a kind of animal holder, comprise animal lock chamber and be arranged on the fixed piston in described animal lock chamber, wherein, described fixed piston comprise sealing head, push rod, be arranged on the central axis of described push rod pull bar moving hole and be positioned at the pull bar of described pull bar moving hole and the pull bar fixing device for fixing described pull bar; Described pull bar is fixedly connected with described sealing head, and the first end of described push rod contacts with described sealing head and connects.
preferably, described pull bar fixing device is screw fixing device; The outside thread that described screw fixing device comprises the internal thread on the hole wall being arranged on described pull bar moving hole and is arranged on the outer surface of described pull bar.
preferably, described pull bar fixing device comprises the positioning convex be arranged on described pull bar and the positioning groove matched with described positioning convex be arranged on described push rod.
preferably, the described pull bar fixing device positioning dowel that comprises the positioning hole be arranged on described pull bar, be arranged on the pin hole on the hole wall of described pull bar moving hole and be arranged in described pin hole.
preferably, described pull bar fixing device comprises tapped hole on the hole wall being arranged on described pull bar moving hole and is arranged on the screw in described tapped hole.
preferably, the first end of described push rod is connected by spring contact with described sealing head.
preferably, described sealing head is umbrella sealing circle, ball sealer, conical seal ring or O RunddichtringO.
preferably, described sealing head is after pressurized, and the diameter that the outermost one of described sealing head encloses becomes large.
preferably, the head end of described animal lock chamber is gradually-reducing shape cavity, and the tail end of described animal lock chamber is circular cylindrical cavity, and described fixed piston is arranged in described circular cylindrical cavity.
animal holder of the present invention, by arranging the fixed piston with sealing head and pull bar fixing device, pull bar produces pulling force and makes sealing head pressurized, pull bar fixing device fixed drawing-rod, sealing head and animal lock chamber interference fit, play seal action, and due to interference fit, sealing head can not move in animal lock chamber, plays the effect of fixing animal.When needs hydrodynamic reciprocating sealing head or when taking out piston, first make sealing head restore to the original state, have larger gap between sealing head and animal lock chamber, be convenient to the movement of piston, piston is moved in piston barrel does not need very large strength, and sealability is outstanding.
according to hereafter by reference to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Accompanying drawing explanation
hereinafter describe specific embodiments more of the present invention with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference character identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
fig. 1 is the schematic perspective view of animal holder according to an embodiment of the invention;
fig. 2 be the animal holder shown in Fig. 1 schematic right parallax stereogram;
reference character: animal lock chamber 10, gradually-reducing shape cavity 11, circular cylindrical cavity 12, fixed piston 20, sealing head 21, push rod 22, pull bar 23.
Embodiment
fig. 1 is the schematic perspective view of animal holder according to an embodiment of the invention, Fig. 2 be the animal holder shown in Fig. 1 schematic right parallax stereogram; As depicted in figs. 1 and 2, a kind of animal holder, the fixed piston 20 comprising animal lock chamber 10 and be arranged in described animal lock chamber 10.The head end of animal lock chamber 10 is gradually-reducing shape cavity 11, and the tail end of animal lock chamber 10 is circular cylindrical cavity 12, and fixed piston 20 is arranged in circular cylindrical cavity 12.Fixed piston 20 comprise sealing head 21, push rod 22, be arranged on the central axis of push rod 22 pull bar moving hole and be positioned at the pull bar 23 of pull bar moving hole and the pull bar fixing device for fixed drawing-rod 23; Pull bar 23 is fixedly connected with sealing head 21, and the first end of push rod 22 contacts with sealing head 21 and connects.Sealing head 21 is after pressurized, and the diameter that the outermost one of sealing head 21 encloses becomes large.Working procedure is, take out fixed piston 20, the animals such as mouse are put in animal lock chamber 10 from the tail end of animal lock chamber 10, and the head of mouse is placed in gradually-reducing shape cavity 11, and the sealing head 21 of fixed piston 20 is arranged on the tail end of mouse.After putting animal into, fixed piston 20 advances animal lock chamber 10, and the diameter of sealing head 21 outmost turns is less than the diameter of circular cylindrical cavity 12, easily fixed piston 20 is shifted onto the tail end of animal; Keep the position of sealing head 21 motionless, make pull bar 23 and push rod 22 relative movement, press seal head 21, sealing head 21 pressurized, the diameter of sealing head 21 outmost turns becomes large gradually, and circular cylindrical cavity 12 interference fit.Now pull bar fixing device makes pull bar 23 not move, fixed drawing-rod 23, and sealing head 21 and animal lock chamber 10 interference fit, play seal action, and due to interference fit, sealing head 21 can not move in animal lock chamber 10, plays the effect of fixing animal.When needs hydrodynamic reciprocating sealing head 21 or when taking out piston, first make sealing head 21 restore to the original state, between sealing head 21 and animal lock chamber 10, there is larger gap, be convenient to the movement of piston, piston is moved in piston barrel and does not need very large strength, and sealability is outstanding.
in another one embodiment of the present invention, pull bar fixing device is screw fixing device; The outside thread that screw fixing device comprises the internal thread on the hole wall being arranged on pull bar moving hole and is arranged on the outer surface of pull bar 23.Screw thread is fixed, and is convenient to the relative movement between pull bar 23 and push rod 22.Sealing head 21 is umbrella sealing circle, ball sealer, conical seal ring or O RunddichtringO.
in another one embodiment of the present invention, pull bar fixing device comprises the positioning convex be arranged on pull bar 23 and the positioning groove matched with positioning convex be arranged on push rod 22.Positioning convex moves in positioning groove, positioning groove can arrange on the hole wall of animal lock chamber 10, comprise the first groove and the second groove, the axis of the first groove and the axis being parallel of animal lock chamber 10, second groove is connected with the first groove, the axis of the second groove and the axes normal of animal lock chamber 10.
in another one embodiment of the present invention, the positioning dowel that pull bar fixing device comprises the positioning hole be arranged on pull bar 23, is arranged on the pin hole on the hole wall of pull bar moving hole and is arranged in pin hole.
in another one embodiment of the present invention, the screw that pull bar fixing device comprises the tapped hole on the hole wall being arranged on pull bar moving hole and is arranged in tapped hole.The first end of push rod 22 is connected by spring contact with sealing head 21.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, and under the premise without departing from the principles of the invention, any improvements and modifications made also should be considered as protection scope of the present invention.
Claims (9)
1. an animal holder, comprise animal lock chamber (10) and be arranged on the fixed piston (20) in described animal lock chamber (10), it is characterized in that, described fixed piston (20) comprise sealing head (21), push rod (22), be arranged on the central axis of described push rod (22) pull bar moving hole and be positioned at the pull bar (23) of described pull bar moving hole and the pull bar fixing device for fixing described pull bar (23); Described pull bar (23) is fixedly connected with described sealing head (21), and the first end of described push rod (22) contacts with described sealing head (21) and connects.
2. animal holder according to claim 1, is characterized in that, described pull bar fixing device is screw fixing device; The outside thread that described screw fixing device comprises the internal thread on the hole wall being arranged on described pull bar moving hole and is arranged on the outer surface of described pull bar (23).
3. animal holder according to claim 1, is characterized in that, described pull bar fixing device comprises the positioning convex be arranged on described pull bar (23) and the positioning groove matched with described positioning convex be arranged on described push rod (22).
4. animal holder according to claim 1, it is characterized in that, the positioning dowel that described pull bar fixing device comprises the positioning hole be arranged on described pull bar (23), is arranged on the pin hole on the hole wall of described pull bar moving hole and is arranged in described pin hole.
5. animal holder according to claim 1, is characterized in that, the screw that described pull bar fixing device comprises the tapped hole on the hole wall being arranged on described pull bar moving hole and is arranged in described tapped hole.
6. animal holder according to any one of claim 1 to 5, is characterized in that, the first end of described push rod (22) is connected by spring contact with described sealing head (21).
7. animal holder according to any one of claim 1 to 5, is characterized in that, described sealing head (21) is umbrella sealing circle, ball sealer, conical seal ring or O RunddichtringO.
8. animal holder according to any one of claim 1 to 5, is characterized in that, described sealing head (21) is after pressurized, and the diameter that the outermost one of described sealing head (21) encloses becomes large.
9. animal holder according to any one of claim 1 to 5, it is characterized in that, the head end of described animal lock chamber (10) is gradually-reducing shape cavity (11), the tail end of described animal lock chamber (10) is circular cylindrical cavity (12), and described fixed piston (20) is arranged in described circular cylindrical cavity (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045353.3A CN104832642B (en) | 2014-02-08 | 2014-02-08 | Animal holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045353.3A CN104832642B (en) | 2014-02-08 | 2014-02-08 | Animal holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832642A true CN104832642A (en) | 2015-08-12 |
| CN104832642B CN104832642B (en) | 2017-12-12 |
Family
ID=53810730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410045353.3A Active CN104832642B (en) | 2014-02-08 | 2014-02-08 | Animal holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104832642B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320069A (en) * | 1992-04-28 | 1994-06-14 | The United States Of America As Represented By The Secretary Of The Army | Small animal restraint device |
| JPH08131465A (en) * | 1994-11-04 | 1996-05-28 | Dai Ichi Pure Chem Co Ltd | Experimental animal fixing device |
| JP2007236525A (en) * | 2006-03-07 | 2007-09-20 | Showa Marutsutsu Co Ltd | Small animal retaining appliance |
| US20080168948A1 (en) * | 2007-01-11 | 2008-07-17 | Starr Life Sciences Corp. | Small animal restraining device with non-traumatic animal loading device |
| KR100916509B1 (en) * | 2007-10-17 | 2009-09-08 | 전북대학교산학협력단 | fixing apparatus for laboratory rodent |
| CN202051849U (en) * | 2011-05-13 | 2011-11-30 | 中国人民解放军第四军医大学 | Lab mouse tail intravenous injection fixing device |
| CN203107327U (en) * | 2013-03-21 | 2013-08-07 | 上海市公共卫生临床中心 | Fixing device capable of adjusting small mouse |
| CN103255300A (en) * | 2013-05-31 | 2013-08-21 | 南京惠镁机械装备有限公司 | Auto-adaptation pipeline pushing device for magnesium smelting of delivery machine |
| CN203153998U (en) * | 2012-12-14 | 2013-08-28 | 广东出入境检验检疫局检验检疫技术中心 | Mouse fixator |
| CN203756973U (en) * | 2014-02-08 | 2014-08-06 | 北京慧荣和科技有限公司 | Animal fixator |
-
2014
- 2014-02-08 CN CN201410045353.3A patent/CN104832642B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320069A (en) * | 1992-04-28 | 1994-06-14 | The United States Of America As Represented By The Secretary Of The Army | Small animal restraint device |
| JPH08131465A (en) * | 1994-11-04 | 1996-05-28 | Dai Ichi Pure Chem Co Ltd | Experimental animal fixing device |
| JP2007236525A (en) * | 2006-03-07 | 2007-09-20 | Showa Marutsutsu Co Ltd | Small animal retaining appliance |
| US20080168948A1 (en) * | 2007-01-11 | 2008-07-17 | Starr Life Sciences Corp. | Small animal restraining device with non-traumatic animal loading device |
| KR100916509B1 (en) * | 2007-10-17 | 2009-09-08 | 전북대학교산학협력단 | fixing apparatus for laboratory rodent |
| CN202051849U (en) * | 2011-05-13 | 2011-11-30 | 中国人民解放军第四军医大学 | Lab mouse tail intravenous injection fixing device |
| CN203153998U (en) * | 2012-12-14 | 2013-08-28 | 广东出入境检验检疫局检验检疫技术中心 | Mouse fixator |
| CN203107327U (en) * | 2013-03-21 | 2013-08-07 | 上海市公共卫生临床中心 | Fixing device capable of adjusting small mouse |
| CN103255300A (en) * | 2013-05-31 | 2013-08-21 | 南京惠镁机械装备有限公司 | Auto-adaptation pipeline pushing device for magnesium smelting of delivery machine |
| CN203756973U (en) * | 2014-02-08 | 2014-08-06 | 北京慧荣和科技有限公司 | Animal fixator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104832642B (en) | 2017-12-12 |
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