CN101897622B - Load-bearing device - Google Patents
Load-bearing device Download PDFInfo
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- CN101897622B CN101897622B CN2010102442484A CN201010244248A CN101897622B CN 101897622 B CN101897622 B CN 101897622B CN 2010102442484 A CN2010102442484 A CN 2010102442484A CN 201010244248 A CN201010244248 A CN 201010244248A CN 101897622 B CN101897622 B CN 101897622B
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- counterweight
- load
- bearing device
- helical spring
- retainer ring
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Abstract
The invention discloses a loading device, comprising: coil spring and a plurality of weight, wherein: the diameter of the spiral spring is reduced from the upper end to the lower end in sequence, a plurality of fixing rings are arranged on the outer wall of the spiral spring, and a plurality of weights are placed in the fixing rings respectively. The loading device provided by the embodiment of the application has the advantages that the operation is simple, the loading device can be conveniently and quickly installed or detached in an experiment, the fixation is firm after the installation, the total mass can be conveniently, quickly and accurately adjusted, and the repeatability and the scientificity of the experiment are guaranteed.
Description
Technical field
The application relates to the experimental provision field, particularly relates to a kind of load-bearing device that is used for the experiment of animal swimming endurance.
Background technology
The experiment of animal swimming endurance is often to be used to estimate the classics experiment of medicine or poisonous substance to the body resisting fatigue ability influence.Researcher is generally with the bear a heavy burden weight of 5%-10% of body weight of mouse tail; Write down its in depth of water constant temperature (25 deg.c) pond long greater than the twice body swimming up to it greater than the time that can not emerge in ten seconds, relatively the length of this time is come the size of evaluation experimental factor to the influence of animal anti-fatigue ability.
In recent years, along with China's Chinese medicine and xenobiontics correlational study constantly develop, advantage such as mice swimming endurance experiment is simple to operate with it, evaluation effect is better receives the attention of more and more researcheres, and its application is also all the more extensive.The weight that the Mus tail bears a heavy burden in experiment does not at present have unified standard: 1, the employed material of heavy burden thing is multifarious, such as sheet lead, tin bar, iron nail, toothpaste, safety pin etc.; The fixed mode of 2 heavy burden things also has nothing in common with each other, such as bondage, winding, clip or the like.
Through research to prior art; The applicant finds: in the existing experiment; There are more drawback in Mus tail heavy burden thing and heavy burden thing fixed form; Not only be difficult to simply, quickly and safely the heavy burden thing be fixed on the Mus tail, and heavy burden thing quality of regulation easily, fast and accurately, the repeatable and scientific of mice swimming endurance experiment influenced.
Summary of the invention
For solving the problems of the technologies described above, the application embodiment provides a kind of load-bearing device, and is simple to operate; In experiment, not only can install easily and quickly or unload; The back fixation is installed, and can regulates gross mass easily, fast and accurately, technical scheme is following:
A kind of load-bearing device comprises: helical spring and a plurality of counterweight, wherein:
Said helical spring diameter reduces from top to bottom successively, and said helical spring outer wall is provided with a plurality of retainer rings, and said a plurality of counterweights are placed in said a plurality of retainer ring.
Preferably, said retainer ring evenly is arranged on around the bigger opening of said helical spring diameter.
Preferably, the open end that said helical spring diameter is bigger is a close ring.
Preferably, said counterweight is embedded in or is fixed in the said retainer ring through screw thread.
Preferably, said counterweight comprises the counterweight of a plurality of different quality grades.
Preferably, the color of the counterweight of different quality grade has nothing in common with each other in the said counterweight.
Preferably, the counterweight of same credit rating has at least two in the said counterweight.
The load-bearing device that the application embodiment provides, main part are helical spring, and counterweight can be installed in the retainer ring on the helical spring, and when carrying out the experiment of animal endurance, this load-bearing device has the following advantages:
1, in experiment, through curling up direction rotating screw spring, both can regulate this load-bearing device and the tightness degree that combines of treating the laboratory animal tail along helical spring, more firm after fixing, can prevent slippage, can take off easily again.Operation is simple for this load-bearing device, reusable.
2, in experiment, can also be through the counterweight of plus-minus different quality, easy, accurately regulate the gross mass of whole load-bearing device, can regulate and control the heavy burden quality of mice swimming endurance experiment afterbody better.
3, the helical spring of this load-bearing device can put along the tail of treating laboratory animal, and whole combination is stressed more even, can not produce compressing to the part and hinder blood circulation, avoids because the device fixed form of conducting oneself with dignity is improper, and influences experimental result.
Therefore, the load-bearing device that the application embodiment provides, simple to operate; In experiment, not only can install easily and quickly or unload; The back fixation is installed, and can regulates gross mass easily, fast and accurately, guaranteed the repeatable and scientific of experiment.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment that put down in writing among the application, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the load-bearing device that Fig. 1 provides for the application embodiment;
The side view of the load-bearing device that Fig. 2 provides for the application embodiment;
Three kinds of structural representations of the counterweight that Fig. 3-Fig. 5 provides for the application embodiment;
The vertical view of the load-bearing device that Fig. 6 provides for the application embodiment.
The specific embodiment
In order to make those skilled in the art person understand the technical scheme among the application better, will combine the accompanying drawing among the application embodiment below, the technical scheme among the application embodiment is carried out clear, intactly description.Obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all should belong to the scope of the application's protection.
The structural representation of the load-bearing device that Fig. 1 provides for the application embodiment.
The side view of the load-bearing device that Fig. 2 provides for the application embodiment.
As depicted in figs. 1 and 2, this load-bearing device comprises: helical spring 1 and a plurality of counterweights 3, counterweight 3 is fixed on the retainer ring 2 of helical spring 1.
Three kinds of structural representations of the counterweight that Fig. 3-Fig. 5 provides for the application embodiment.
As shown in Figure 3; The structure of counterweight 3 is cylindric; Diameter from an end 31 to the other end 32 reduces successively, and the diameter of the bigger end 31 of counterweight 3 diameters is greater than the internal diameter of retainer ring 2, and diameter is than the diameter of small end 32 internal diameter less than retainer ring 2; Counterweight 3 just can be embedded in the retainer ring 2 like this, and can from retainer ring 2, freely insert or extract.As shown in Figure 4, the outer surface of counterweight 3 can also be provided with screw thread, and counterweight 3 is connected to a fixed through screw thread and retainer ring 2.As shown in Figure 5, the structure of counterweight 3 can also be arranged to stepped, can be embedded in the retainer ring 2 equally.Those skilled in the art will be appreciated that; Counterweight 3 is embedded in or is fixed in the retainer ring 2 through screw thread, is the application's a preferred embodiment, in other embodiment of the application; Counterweight can also be fixed through other mode and retainer ring; For example counterweight adopts Magnet to process, and counterweight attracts each other to be connected with retainer ring and fixes, so the fixed form of counterweight and retainer ring should not constitute the restriction to the application.
Treat among the application embodiment that laboratory animal is a mice.Before experiment; The tail of mice is penetrated by the bigger end suitable for reading 4 of the diameter of helical spring 1; Inside through helical spring 1; And the Mus tail passed by the less end opening end 5 of the diameter of helical spring 1, curl up direction rotating screw spring 1 along helical spring 1 then, this load-bearing device is fastened on the Mus tail of mice.In retainer ring 2, put into a plurality of counterweights 3 of required test mass, put mice into pond then and promptly can experimentize.These load-bearing device installation and removal are more convenient, can repeat repeatedly to use, and it is easy and simple to handle that counterweight is installed the gross mass that can accurately regulate load-bearing device.In addition, when helical spring was fixed on the Mus tail, helical spring is whole to be closed with the Mus caudal knot, stressed more even, can not produce compressing to the part and hinder blood circulation, can also avoid because the load-bearing device fixed form is improper, thereby influence the problem of experimental science property.
The vertical view of the load-bearing device that Fig. 6 provides for the application embodiment
In order to increase the binding force of this load-bearing device to the Mus tail, as shown in Figure 5, the end suitable for reading of helical spring 1 is a closed hoop; When helical spring was rotated on the Mus tail, because helical spring front end is a closed hoop, lower port was open opening like this; So when spring is rotated on the Mus tail; The bottom branch of spring 1 can " hold mice Mus tail " along with the rotation of spring 1 has inside contractility to mice Mus tail, makes itself and mice Mus tail fixed tightr.
The load-bearing device that the application embodiment provides, main part are helical spring, and counterweight can be installed in the retainer ring on the helical spring, and when carrying out the experiment of animal endurance, this load-bearing device has the following advantages:
1, in experiment, through curling up direction rotating screw spring, both can regulate this load-bearing device and the tightness degree that combines of treating the laboratory animal tail along helical spring, more firm after fixing, can prevent slippage, can take off easily again.Operation is simple for this load-bearing device, reusable.
2, in experiment, can also be through the counterweight of plus-minus different quality, easy, accurately regulate the quality of whole load-bearing device, can regulate and control the heavy burden quality of mice swimming endurance experiment afterbody better.
3, the helical spring of this load-bearing device can put along the tail of treating laboratory animal, and whole combination is stressed more even, can not produce compressing to the part and hinder blood circulation, avoids because the load-bearing device fixed form is improper, and influences experimental result.
Therefore, the load-bearing device that the application embodiment provides, simple to operate; In experiment, not only can install easily and quickly or unload; The back fixation is installed, and can regulates gross mass easily, fast and accurately, guaranteed the repeatable and scientific of experiment.
The above only is the application's a preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be conspicuous to one skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the application or scope in other embodiments among this paper.Therefore, the application will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (7)
1. a load-bearing device is characterized in that, comprising: helical spring and a plurality of counterweight, wherein:
Said helical spring diameter reduces from top to bottom successively, and said helical spring outer wall is provided with a plurality of retainer rings, and said a plurality of counterweights are placed in said a plurality of retainer ring.
2. load-bearing device according to claim 1 is characterized in that, said retainer ring evenly is arranged on around the bigger opening of said helical spring diameter.
3. load-bearing device according to claim 1 is characterized in that, the open end that said helical spring diameter is bigger is a close ring.
4. load-bearing device according to claim 1 is characterized in that, said counterweight is embedded in or is fixed in the said retainer ring through screw thread.
5. load-bearing device according to claim 1 is characterized in that said counterweight comprises the counterweight of a plurality of different quality grades.
6. load-bearing device according to claim 5 is characterized in that the color of the counterweight of different quality grade has nothing in common with each other in the said counterweight.
7. load-bearing device according to claim 5 is characterized in that the counterweight of same credit rating has at least two in the said counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102442484A CN101897622B (en) | 2010-08-04 | 2010-08-04 | Load-bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102442484A CN101897622B (en) | 2010-08-04 | 2010-08-04 | Load-bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101897622A CN101897622A (en) | 2010-12-01 |
| CN101897622B true CN101897622B (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102442484A Expired - Fee Related CN101897622B (en) | 2010-08-04 | 2010-08-04 | Load-bearing device |
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| Country | Link |
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| CN (1) | CN101897622B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330597B (en) * | 2013-07-19 | 2015-03-11 | 成都中医药大学 | Device for loading experimental mouse during swimming |
| CN103385768B (en) * | 2013-07-19 | 2015-08-26 | 胡尧 | Experimental rat swimming afterbody load-bearing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411026Y (en) * | 1998-12-03 | 2000-12-20 | 谢书 | Multifunction swimming training suit of floatage adjustable type |
| CN2414783Y (en) * | 2000-02-14 | 2001-01-17 | 周明亮 | Weight exercising garment |
| CN2460132Y (en) * | 2000-12-19 | 2001-11-21 | 马志刚 | Force resister for swimming training |
-
2010
- 2010-08-04 CN CN2010102442484A patent/CN101897622B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411026Y (en) * | 1998-12-03 | 2000-12-20 | 谢书 | Multifunction swimming training suit of floatage adjustable type |
| CN2414783Y (en) * | 2000-02-14 | 2001-01-17 | 周明亮 | Weight exercising garment |
| CN2460132Y (en) * | 2000-12-19 | 2001-11-21 | 马志刚 | Force resister for swimming training |
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| Publication number | Publication date |
|---|---|
| CN101897622A (en) | 2010-12-01 |
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