阅读说明：本技术 一种用于蛙类繁殖的抱对测力实验装置及其使用方法 (Clasping force measurement experimental device for frog breeding and use method thereof ) 是由 黄子烊 于 2019-11-01 设计创作，主要内容包括：本发明涉及蛙类养殖领域,具体为一种用于蛙类繁殖的抱对测力实验装置及其使用方法,包括对雄蛙固定的固定台,还包括基座,基座的两端对称式固定有两个立架,两个立架的上端头分别固定连接固定台的两端,基座的中部固定有两组对雄蛙小臂进行测力的可调式小臂测力机构,立架的上部固定有对雄蛙大臂进行测力的可调式大臂测力机构,测力计一和测力计二的拉力端均固定有对拉绳张紧调节的张紧机构。该种用于蛙类繁殖的抱对测力实验装置及其使用方法,使得测力计的测力方向与手臂的施力方向保持一致,从而大大提高测量的准确性,而且有助于简化结构,提高测力准确性,操作简单便捷,并能够在测力过程中出现的偏差进行修正,从而得出准确的数值。(The invention relates to the field of frog breeding, in particular to an embracing force measurement experiment device for frog breeding and a using method thereof. The clasping force-measuring experimental device for frog breeding and the use method thereof enable the force-measuring direction of the dynamometer to be consistent with the force application direction of the arm, thereby greatly improving the measuring accuracy, facilitating the simplification of the structure, improving the force-measuring accuracy, being simple and convenient to operate, and correcting the deviation in the force-measuring process, thereby obtaining an accurate numerical value.)

1. The utility model provides a embrace to dynamometry experimental apparatus for frog class breeds, includes fixed station (3) fixed to male frog, set up perforating hole (4) that can make male frog arm pass on fixed station (3), its characterized in that: the device is characterized by further comprising a base (1), wherein two upright frames (2) which are vertically upward are symmetrically fixed at two ends of the base (1), and the upper ends of the two upright frames (2) are respectively and fixedly connected with two ends of the fixed table (3);

the middle part of the base (1) is fixed with two groups of adjustable forearm force measuring mechanisms for measuring force of the forearm of the male frog, the two forearm force measuring mechanisms are symmetrically arranged by taking the middle section of the base (1) as a symmetrical plane, each forearm force measuring mechanism comprises a first lead screw (5) rotationally connected to the base (1) through a fixed shaft, the first lead screw (5) is in threaded connection with a first slide block (6), the first slide block (6) is provided with a first dynamometer (8) and a first comparison stop block (7) for performing verticality comparison on the first dynamometer (8), the first dynamometer (8) is connected with a first hoop sleeve (9) through a pull rope (11), and the first hoop sleeve (9) is sleeved on the forearm of the male frog;

the upper part of the vertical frame (2) is fixedly provided with an adjustable large-arm force measuring mechanism for measuring the force of a large arm of a male frog, the large-arm force measuring mechanism comprises a second screw rod (12) which is rotationally connected to the vertical frame (2) in a dead axle manner, the second screw rod (12) is in threaded connection with a second slide block (13), the second slide block (13) is provided with a second dynamometer (15) and a second comparison stop block (14) for comparing the verticality of the second dynamometer (15), the second dynamometer (15) is connected with a second hoop sleeve (16) through a pull rope (11), and the second hoop sleeve (16) is sleeved on the large arm of the male frog;

tension mechanisms (10) for tensioning and adjusting the pull ropes (11) are fixed at the tension ends of the first dynamometer (8) and the second dynamometer (15).

2. The clasping force measuring experimental device for frog breeding according to claim 1 is characterized in that: the positioning end of the first dynamometer (8) is hinged to the first sliding block (6), the first comparison stop block (7) is vertically fixed on the first sliding block (6), the first comparison stop block (7) is perpendicular to the horizontal plane, and one side of the first dynamometer (8) can be attached to the vertical side wall of the first comparison stop block (7) in parallel.

3. The clasping force measuring experimental device for frog breeding according to claim 1 is characterized in that: the positioning end of the second dynamometer (15) is hinged to the second slider (13), the second comparison stop block (14) is vertically fixed on the second slider (13), the second comparison stop block (14) is parallel to the horizontal plane, and one side of the second dynamometer (15) can be attached to the horizontal side wall of the second comparison stop block (14) in parallel.

4. The clasping force measuring experimental device for frog breeding as claimed in claim 2, characterized in that: be provided with warning device on comparison dog (7), warning device is including fixing pilot lamp (17), touch switch (18) and the battery on comparison dog (7), and pilot lamp (17), touch switch (18) and battery establish ties and constitute closed circuit, dynamometer (18) contact with touch switch (18) simultaneously when laminating with the parallel of the vertical lateral wall of comparison dog (7).

5. The clasping force measuring experimental device for frog breeding as claimed in claim 3, characterized in that: also be provided with warning device on the check block two (14), warning device is including fixing pilot lamp (17), touch switch (18) and the battery on check block two (14), and pilot lamp (17), touch switch (18) and battery series connection constitute closed circuit, contact with touch switch (18) simultaneously when dynamometer two (15) and the parallel laminating of lateral wall of the horizontal direction of check block two (14).

6. The clasping force measuring experimental device for frog breeding according to claim 1 is characterized in that: the tensioning mechanism (10) comprises a sliding frame (19) fixed on the corresponding dynamometer and an adjusting component (20) connected to the sliding frame (19) in a sliding mode, and the adjusting component (20) is connected to the pull rope (11); the sliding rack (19) is provided with a sliding groove (191) along the length direction of the sliding rack (19).

7. The clasping force measuring experimental device for frog breeding as claimed in claim 6, characterized in that: the adjusting assembly (20) comprises a sliding seat (21) which is connected in a sliding groove (191) in a sliding mode, an L-shaped support (22) is fixed on the sliding seat (21), a worm wheel (24) is connected to the sliding seat (21) in a fixed-shaft rotating mode, a worm (23) is connected to the support (22) in a fixed-shaft rotating mode, and the worm (23) is connected with the worm wheel (24) in a meshed mode; the method is characterized in that: a winding reel (25) is coaxially fixed on the turbine (24), a pull rope (11) is wound on the winding reel (25) and is connected with the corresponding hoop sleeve through the pull rope (11), the support (22) is connected with the corresponding tension end of the dynamometer through the pull rope (11), and the two pull ropes (11) on the adjusting assembly (20) are positioned on the same straight line.

8. The use method of the clasping force-measuring experimental device for frog breeding according to claim 1 is characterized in that: the method comprises the following steps:

the method comprises the following steps: fixing the tested male frogs on a fixed table (3);

step two: after the first hoop sleeve (9) and the second hoop sleeve (16) are installed, the force of the large arm and the force of the small arm of the male frog are measured through a large arm force measuring mechanism and a small arm force measuring mechanism respectively.

Technical Field

The invention relates to the field of frog breeding, in particular to a clasping force measuring experimental device for frog breeding and a using method thereof.

Background

In the grass on the side close to the water, the male frogs in the reproduction period can be prone on the bodies of the female frogs and the forelimbs tightly hold the female frogs every time the frogs are crossed in spring and summer, which is called as holding. The embracing phenomenon is the indispensable reproductive behavior of frog and toad before spawning, and once male chases to female, the sound is natural and stopped, and forelimbs are used to tightly embrace the armpits of opposite sex and crouch on the back. The biological significance of the compound has a close relation with stimulating the amphoteric synchronous spermiation and oviposition and improving the fertilization rate. Since the arm strength of male frogs plays an important role in holding the endurance of mating fertilization, the mating ability of male frogs is usually determined by measuring the arm strength of male frogs. In the prior art, when a force is measured by a frog embracing force measuring device, the direction deviation between a force meter and a male frog arm force is large, so that the error of a measuring result is large.

Disclosure of Invention

The invention aims to provide a clasping force measuring experimental device for frog breeding and a using method thereof, so as to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: a holding force measuring experiment device for breeding frogs comprises a fixing table for fixing a male frog, a base, two vertical frames which are vertically upward and symmetrically fixed at two ends of the base, wherein the upper ends of the two vertical frames are respectively and fixedly connected with two ends of the fixing table, two groups of adjustable small arm force measuring mechanisms for measuring force of the small arms of the male frog are fixed at the middle part of the base, the two small arm force measuring mechanisms are symmetrically arranged by taking the middle section of the base as a symmetrical plane, each small arm force measuring mechanism comprises a first lead screw rotationally connected to the base in a fixed axis manner, the first lead screw is in threaded connection with a first slide block, the first slide block is provided with a first dynamometer and a first control stop block for comparing the verticality of the first dynamometer, the first dynamometer is connected with a first hoop through a pull rope, and the first hoop is sleeved on the small arms of the male frog, the upper portion of grudging post is fixed with carries out the big arm force measuring mechanism with adjustable dynamometry to the big arm of male frog, big arm force measuring mechanism includes that the dead axle rotates the lead screw two of connecting on the grudging post, threaded connection slider two on the lead screw two, be provided with dynamometer two on the slider two and go on the contrast dog two of straightness contrast of hanging down to dynamometer two, dynamometer two is through stay cord connection hoop cover two, and hoop cover cup joints on the big arm of male frog, the pulling force end of dynamometer one and dynamometer two all is fixed with the straining device who adjusts the stay cord tensioning.

Preferably, the positioning end of the first dynamometer is hinged to the first sliding block, the first comparison stop block is vertically fixed to the first sliding block and perpendicular to the horizontal plane, and one side of the first dynamometer can be attached to the vertical side wall of the first comparison stop block in parallel.

Preferably, the positioning end of the second dynamometer is hinged to the second sliding block, the second comparison block is vertically fixed on the second sliding block and parallel to the horizontal plane, and one side of the second dynamometer can be attached to the horizontal side wall of the second comparison block in parallel.

Preferably, contrast dog is last to be provided with alarm device, and alarm device is including fixing pilot lamp, touch switch and the battery on contrast dog, and pilot lamp, touch switch and battery series connection constitute closed circuit, the parallel contact with touch switch simultaneously when laminating of the vertical lateral wall of dynamometer one and contrast dog.

Preferably, also be provided with warning device on the comparison dog two, warning device is including fixing pilot lamp, touch switch and the battery on comparison dog two, and pilot lamp, touch switch and battery series connection constitute closed circuit, simultaneously with the touch switch contact when dynamometer two is laminated with the lateral wall parallel of comparison dog two to the level.

Preferably, the tensioning mechanism comprises a carriage fixed on the corresponding dynamometer and an adjusting component connected to the carriage in a sliding mode, and the adjusting component is connected to the pull rope.

Preferably, set up the spout along balladeur train length trend on the balladeur train, adjusting part includes the slide of sliding connection in the spout, is fixed with the support of L type on the slide, and the dead axle rotates on the slide to be connected with the turbine, and the dead axle rotates on the support to be connected with the worm, and worm and turbine meshing are connected.

Preferably, a winding reel is coaxially fixed on the turbine, a pull rope is wound on the winding reel and is connected with the corresponding hoop sleeve through the pull rope, the support is connected with the corresponding tension end of the dynamometer through the pull rope, and the two pull ropes on the adjusting assembly are positioned on the same straight line.

A use method of a clasping force measuring experimental device for frog breeding comprises the following steps:

the method comprises the following steps: fixing the tested male frog on a fixed platform, enabling the arm of the male frog to penetrate through a through hole to be located below the fixed platform, sleeving a hoop sleeve at the position of a large arm of a corresponding arm in a sleeving manner, sleeving the hoop sleeve at the position of a small arm of the corresponding arm in a sleeving manner, giving stimulation to the male frog, and enabling a first dynamometer and a first comparison stop block to form a certain included angle and a second dynamometer and a second comparison stop block to form a certain included angle in an initial state;

step two: after the first hoop sleeve and the second hoop sleeve are installed, the force of the large arm and the force of the small arm of the male frog are measured through a large arm force measuring mechanism and a small arm force measuring mechanism respectively, and the operation is as follows: rotating the second screw rod to enable the second slide block to move upwards, continuously adjusting a tensioning mechanism on the second dynamometer to enable the pull rope to be always in a tensioning state, and when the second dynamometer is attached to the second comparison stop block, sending a warning signal by a warning device to finish the position adjustment of the second dynamometer;

after the position of the second sliding block is adjusted, the worm is rotated to enable the turbine to drive the winding reel to continuously wind the pull rope to enable the pull rope to be shortened until the pull rope can drive the large male frog arm to be outwards opened through the second hoop sleeve, and the reading of the second dynamometer is read at the moment, namely the maximum force of the large male frog arm;

when the force of the male frog forearm is measured, the first screw rod is rotated to enable the first slide block to move to the middle of the base along the length direction of the first screw rod under the action of the screw thread, the tensioning mechanism on the first dynamometer is continuously adjusted to enable the pull rope to be always in a tensioning state, and when the first dynamometer is attached to the first comparison stop block, the warning device sends a warning signal, so that the position adjustment of the first dynamometer is completed;

the process of adjusting the tensioning mechanism on the first dynamometer is consistent with the process of adjusting the tensioning mechanism on the second dynamometer, and when the tensioning mechanism pulls and opens the forearm of the male frog arm through the pull rope and the first hoop, the reading of the first dynamometer is read, namely the maximum force of the male frog forearm.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the arm strength of the male frogs is measured through the adjustable large-arm force measuring mechanism and the adjustable small-arm force measuring mechanism, so that the force measuring direction of the dynamometer is consistent with the force application direction of the arms, and the measuring accuracy is greatly improved;

according to the invention, the tensioning mechanism is used for adjusting and controlling the length of the pull rope, so that the maximum force of the large arm and the small arm of the male frog can be obtained, and the worm gear transmission structure is adopted, and the self-locking characteristic of the worm gear transmission structure is utilized, so that the spool can be kept at any position for adjustment without reverse rotation, other fixing mechanisms are not needed, the structure is simplified, the force measurement accuracy is improved, and the operation is simple and convenient;

according to the invention, the linkage influence can be generated on the small arm when the large arm force measuring mechanism is adjusted or the linkage influence can be generated on the large arm when the small arm force measuring mechanism is adjusted, and the adjustable large arm force measuring mechanism and the adjustable small arm force measuring mechanism can be adjusted in an adaptive manner according to the change of the small arm or the large arm, so that the deviation generated in the force measuring process can be corrected, and an accurate numerical value can be obtained.

Drawings

FIG. 1 is a first schematic view of an assembly structure according to the present invention;

FIG. 2 is a first schematic structural diagram of a large arm force measuring mechanism according to the present invention;

FIG. 3 is a first structural diagram of a forearm force measuring mechanism of the present invention;

FIG. 4 is a second schematic view of the final assembly structure of the present invention;

FIG. 5 is a second schematic structural view of a large arm force measuring mechanism according to the present invention;

FIG. 6 is a second structural diagram of the forearm force measuring mechanism of the present invention;

fig. 7 is a schematic view of the structure of the tensioning mechanism of the present invention.

In the figure: 1-a base; 2-erecting a frame; 3-a fixed table; 4-a through hole; 5-a first screw rod; 6, a first sliding block; 7-comparing the first check block; 8-dynamometer one; 9-sleeving a first hoop; 10-a tensioning mechanism; 11-a pull rope; 12-a second screw rod; 13-a second sliding block; 14-a comparison stop block II; 15-dynamometer two; 16-a second hoop sleeve; 17-an indicator light; 18-touch switch; 19-a carriage; 191-a chute; 20-an adjustment assembly; 21-a slide; 22-a scaffold; 23-a worm; 24-a turbine; 25-spool.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a clasping force measuring experimental device for breeding frogs and a using method thereof comprise a fixed platform 3 for fixing male frogs, a base 1 and two vertical frames 2 which are vertically upward and symmetrically fixed at two ends of the base 1, wherein the fixed platform 3 is provided with a through hole 4 for enabling an arm of the male frogs to pass through, the upper ends of the two vertical frames 2 are respectively and fixedly connected with two ends of the fixed platform 3, the middle part of the base 1 is fixedly provided with two groups of adjustable small arm force measuring mechanisms for measuring force of small arms of the male frogs, the two small arm force measuring mechanisms are symmetrically arranged by taking the middle section of the base 1 as a symmetrical plane, each small arm force measuring mechanism comprises a first lead screw 5 which is rotationally connected with the base 1 in a fixed shaft manner, the first lead screw 5 is in threaded connection with a first slide block 6, the first slide block 6 is provided with a first dynamometer 8 and a first control block 7 for carrying out perpendicularity control on the first dynamometer 8, the first dynamometer is connected with a first, the hoop sleeve I9 is sleeved on a small arm of a male frog, an adjustable large arm force measuring mechanism for measuring force of the large arm of the male frog is fixed at the upper part of the stand 2, the large arm force measuring mechanism comprises a screw rod II 12 which is rotationally connected to the stand 2 through a fixed shaft, a slide block II 13 is in threaded connection with the screw rod II 12, a dynamometer II 15 and a comparison stop block II 14 for performing verticality comparison on the dynamometer II 15 are arranged on the slide block II 13, the dynamometer II 15 is connected with a hoop sleeve II 16 through a pull rope 11, the hoop sleeve II 16 is sleeved on the large arm of the male frog, the hoop sleeve I9 and the hoop sleeve II 16 are both made of flexible materials, so that the limitation on the muscle dimension of the arm of the male frog is avoided when the pull force of the pull rope 11 is received, the maximum force of the arm of the male frog can be measured more accurately, and the tensioning mechanisms 10 for tensioning and adjusting the pull rope 11 are fixed at the pull ends of.

In this embodiment, the positioning end of the first dynamometer 8 is hinged to the first slider 6, the first comparison stop block 7 is vertically fixed on the first slider 6, the first comparison stop block 7 is perpendicular to the horizontal plane, and one side of the first dynamometer 8 can be attached to the vertical side wall of the first comparison stop block 7 in parallel.

In this embodiment, the positioning end of the second dynamometer 15 is hinged to the second slider 13, the second comparison stopper 14 is vertically fixed on the second slider 13, the second comparison stopper 14 is parallel to the horizontal plane, and one side of the second dynamometer 15 can be attached to the horizontal side wall of the second comparison stopper 14 in parallel.

In this embodiment, be provided with alarm device on the comparison dog 7, alarm device is including fixing the pilot lamp 17 on comparison dog 7, touch switch 18 and battery, and pilot lamp 17, touch switch 18 and battery series connection constitute closed circuit, simultaneously contact with touch switch 18 when dynamometer 8 and the parallel laminating of the vertical lateral wall of comparison dog 7, alarm device's effect is that the suggestion operator dynamometer has taken place the contact with the comparison dog that corresponds, stop the rotation that corresponds the lead screw this moment, can confirm that the dynamometry direction of dynamometer and the male frog arm application of force direction that corresponds are unanimous.

In this embodiment, the second comparison block 14 is also provided with a warning device, the warning device includes an indicator light 17, a touch switch 18 and a battery fixed on the second comparison block 14, the indicator light 17, the touch switch 18 and the battery are connected in series to form a closed circuit, and the second dynamometer 15 is in contact with the touch switch 18 when being attached to the horizontal side wall of the second comparison block 14 in parallel.

In this embodiment, the tensioning mechanism 10 includes a carriage 19 fixed to the corresponding load cell and an adjustment assembly 20 slidably coupled to the carriage 19, the adjustment assembly 20 being coupled to the pull cord 11.

In this embodiment, a sliding groove 191 extending along the length of the sliding frame 19 is formed in the sliding frame 19, the adjusting assembly 20 includes a sliding seat 21 slidably connected in the sliding groove 191, an L-shaped bracket 22 is fixed on the sliding seat 21, a worm wheel 24 is rotatably connected to the sliding seat 21 in a fixed-axis manner, a worm 23 is rotatably connected to the bracket 22 in a fixed-axis manner, and the worm 23 is meshed with the worm wheel 24.

The fixed shaft rotation connection mode described in the present application is that the characteristic component can only make a rotation motion around its own central axis, for example, the screw rod one 5 can only make a rotation motion around the central axis of the screw rod one 5 on the base 1, the screw rod two 12 can only make a rotation motion around the central axis of the screw rod two 12 on the stand 2, and the turbine 24 can only make a rotation motion around the central axis of the turbine 24 on the slide base 21.

In this embodiment, a winding reel 25 is coaxially fixed on the turbine 24, the pulling rope 11 is wound on the winding reel 25 and connected to the corresponding hoop through the pulling rope 11, the support 22 is connected to the corresponding tension end of the dynamometer through the pulling rope 11, and the two pulling ropes 11 on the adjustment assembly 20 are in the same straight line.

The invention also provides a clasping force measuring experimental device for frog breeding, which is operated as follows when in use and comprises the following steps:

the method comprises the following steps: as shown in fig. 1, a tested male frog is fixed on a fixed platform 3, the arm of the male frog passes through a through hole 4 and is positioned below the fixed platform 3, then a hoop sleeve II 16 is sleeved at a large arm corresponding to the arm, a hoop sleeve I9 is sleeved at a small arm corresponding to the arm, and male doll stimulation is given to enable the arm to be in a hugging state, namely the large arm and the small arm of the male frog are approximately vertical to each other in an L shape when the male frog is in the hugging mating state, and in an initial state, a certain included angle is formed between a dynamometer I8 and a comparison stopper I7, and a certain included angle is formed between a dynamometer II 15 and a comparison stopper II 14, so that the fact that the tensile force of the dynamometer I8 is parallel to the force application direction of the small arm and the tensile force application direction of the dynamometer II 15 is parallel to the force application direction of the large arm during later;

step two: after the first hoop sleeve 9 and the second hoop sleeve 16 are installed, the state as shown in fig. 4 needs to be adjusted through the large-arm force measuring mechanism and the small-arm force measuring mechanism respectively, the adjusting process is as shown in fig. 2 and fig. 5, at this time, the second screw rod 12 is rotated, the second slider 13 moves upwards along the length direction of the second screw rod 12 under the action of the screw thread, the distance between the second slider 13 and the corresponding second hoop sleeve 16 gradually decreases due to the upwards movement of the second slider 13, so that the tensioning mechanism 10 on the second dynamometer 15 needs to be synchronously and continuously adjusted to enable the pull rope 11 to be always in the tensioning state, under the action of the pull rope 11, the second dynamometer 15 rotates around the positioning end of the second dynamometer 15 and approaches to the corresponding second comparison stop block 14 until the second dynamometer 15 is attached to the second comparison stop block 14, at this time, when the second dynamometer 15 is attached to the second comparison stop block 14, the touch switch 18 is just touched, the touch switch, the indicator lamp 17 is electrified and lightened, namely the position adjustment of the dynamometer II 15 is completed;

during adjustment of the tensioning mechanism 10 on dynamometer two 15, the following operations are performed: as shown in fig. 7, the worm 23 is rotated, so that the worm 23 drives the worm wheel 24 to rotate, the rotation of the worm wheel 24 drives the winding reel 25 to synchronously rotate, and further the pull rope 11 is wound up to be shortened and tensioned, after the position of the sliding block two 13 is adjusted, the worm wheel 23 is rotated to drive the winding reel 25 to continuously wind the pull rope 11 to be shortened until the pull rope 11 can drive the male frog large arm to open outwards through the hoop sleeve two 16, at the moment, the reading of the dynamometer two 15 is read, namely, the maximum force of the male frog large arm, because the worm wheel and worm transmission structure is adopted, the worm wheel and worm transmission structure generally has a self-locking characteristic, namely, the condition that the unwinding helix angle of the worm is smaller than the contact friction angle of the worm wheel and worm in the worm wheel and worm transmission, the helix angle of the worm 23 in the worm wheel and worm transmission mechanism disclosed in the application is smaller than the contact friction angle of the, therefore, the self-locking device can realize self-locking, and can keep the winding reel 25 from reversely rotating at any position of adjustment by utilizing the self-locking characteristic of the self-locking device, so that other fixing mechanisms are not needed, the structure is simplified, and the force measuring accuracy is improved;

similarly, when the male frog forearm is subjected to force measurement, as shown in fig. 3 and 6, the screw rod I5 is rotated at the moment, so that the slide block I6 moves towards the middle of the base 1 along the length direction of the screw rod I5 under the action of threads, and the distance between the slide block I6 and the corresponding hoop sleeve I9 is gradually reduced due to the movement of the slide block I6, so that the tensioning mechanism 10 on the dynamometer I8 needs to be synchronously and continuously adjusted to enable the pull rope 11 to be always in a tensioning state, the dynamometer I8 rotates around the positioning end of the dynamometer I8 and approaches to the corresponding comparison stop I7 under the action of the pull rope 11 until the dynamometer I8 is attached to the comparison stop I7, and at the moment, when the dynamometer I8 is attached to the comparison stop I7, the touch switch 18 is just touched, the touch switch 18 is communicated, the circuit is communicated, and the indicator lamp 17 is electrified and brightened, so that the position;

the process of adjusting the tensioning mechanism 10 on the first dynamometer 8 is consistent with the process of adjusting the tensioning mechanism 10 on the second dynamometer 15, when the tensioning mechanism 10 pulls and stretches the small arm of the male frog through the pull rope 11 and the hoop sleeve 9, the reading of the first dynamometer 8 is read at the moment, namely the maximum force of the small arm of the male frog, and the arm force of the male frog at the position can be accurately measured through the adjustable large-arm force measuring mechanism and the adjustable small-arm force measuring mechanism in the whole measuring process, so that the measuring error is reduced, the mating ability of the male frog in embracing is better understood, and the optimal yield increasing task of frog culture is improved;

in addition, when the large-arm force measuring mechanism is adjusted, the large arm of the male frog swings at a certain angle due to the pulling force of the pull rope 11, the swing can affect the position of the small arm, so that the small arm also changes at a corresponding angle, the force application direction of the small arm changes at a certain inclination angle, and the adjustable small-arm force measuring mechanism can adjust according to the change of the swing angle of the small arm caused by the swing of the large arm, so that the deviation in the force measuring process can be corrected, and an accurate value can be obtained;

similarly, the large arm swings when the small arm force measuring mechanism is adjusted, and the adjustable large arm force measuring mechanism can be used for making adaptive adjustment according to the change of the large arm.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.