CN211425724U - Tension testing device for physics teaching - Google Patents
Tension testing device for physics teaching Download PDFInfo
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- CN211425724U CN211425724U CN201922391770.4U CN201922391770U CN211425724U CN 211425724 U CN211425724 U CN 211425724U CN 201922391770 U CN201922391770 U CN 201922391770U CN 211425724 U CN211425724 U CN 211425724U
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Abstract
The utility model relates to the field of teaching aids, in particular to a tension testing device for physical teaching, which comprises a base, a supporting frame, weights, a pressure mechanism and a force lifting mechanism, wherein the base is of a strip-shaped plate structure, the pressure mechanism and the force lifting mechanism are both arranged on the base, the weights are sleeved on the supporting frame, the pressure mechanism comprises a containing box, a first reset spring, a first sliding plate and two supporting plates, the force lifting mechanism comprises a base plate, a placing plate, a second reset spring, a second sliding plate and four strip-shaped supporting columns, the base plate is fixedly arranged on the base, the four strip-shaped supporting columns are symmetrically and fixedly arranged on the base plate, the second reset spring is sleeved at the other end of the supporting frame, and the two ends of the second reset spring are fixedly connected with the placing plate and the second sliding plate, the utility model can test the tension by sliding the weights onto the first sliding plate and the second sliding plate in sequence, the operation is simple, the practicability is high, and the teaching quality is improved.
Description
Technical Field
The utility model relates to a teaching aid field, concretely relates to tension testing device for physical teaching.
Background
Physics is an experimental subject, in the learning of physics, experiments are important methods for researching physics, and in teaching, the interest of students in physical phenomena can be improved through demonstration and experiments, the observation capability of students is cultured, so that the students master certain experimental skills, the practical capability of experiments is enhanced, and the enthusiasm for natural science is cultured.
The interest generated in the physical experiment phenomenon can attract the attention of students, and the device plays an important promoting role in enhancing the curiosity of the students and arousing the learning interest of the students. Self-control teaching aid generally has the easy of drawing materials, economy, can utilize the discarded object that modern life produced in a large number, the preparation is all more simple and convenient moreover, if add two experiments that have interest in the teaching of experiment class, it is extremely favorable to improving the teaching effect of whole lessons, self-control teaching aid just in time has huge advantage in this respect, it need not be like regular teaching aid "formal", it can be regardless of the physical phenomenon that takes place from one's side at all and look for the material to design some interesting experiments.
Along with the incessant deepening of physics teaching reform, the teaching content is also constantly changing, traditional experiment teaching aid can not keep up with the needs that the teaching material changed, many are not suitable for in the teaching material, just for example the pulling force in the physics, the pulling force refers to within elastic limit, the deformation that the object received the effect of external force and produced is directly proportional with the external force that receives, deformation is different along with the direction of power effect, the power that makes the object extend is called pulling force or tension, the pulling force is defined according to the effect of power in fact, if the omnipotent teaching aid spring dynamometer of pure power only, can make the student tedious thereby lose the interest in learning, it is fixed still to think easily, lack the urgent need to supply new teaching instrument and experimental apparatus, this is the needs of teaching reform, the needs of development education, therefore it is necessary to design a tension test device for physics teaching.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tensile testing arrangement for physical teaching.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a tensile test device for physical teaching, includes base, support frame, weight, pressure mechanism and lifting mechanism, the base is the bar plate structure, and pressure mechanism and lifting mechanism all set up on the base, the support frame is U-shaped round bar structure, and the bottom both ends and the base fixed connection of support frame, the weight cover is located on the support frame, and pressure mechanism is including holding case, first reset spring, first slide and two backup pads, two backup pads set up on the base through bolt fastening, hold the case and lie between two backup pads to hold case and base fixed connection, first reset spring cover is located the support frame, first slide sets up between two backup pads, and first slide cover is located the support frame to the bottom of first slide and first reset spring's top fixed connection, lifting mechanism includes base plate, the bottom of first slide is connected with first reset spring's top fixed connection, lifting mechanism includes base plate, Place board, second reset spring, second slide and four bar support columns, the base plate is fixed to be set up on the base, and four bar support column symmetries are fixed to be set up on the base plate, place the fixed top that sets up in four bar support columns of board, the other end of support frame is located to the second reset spring cover to the both ends of second reset spring with place the equal fixed connection of board and second slide, the second slide sets up in placing between board and the base plate.
Preferably, the support frame comprises horizontal pole and two bracing pieces, two bracing piece structure sizes are the same to two bracing pieces are vertical state symmetry and set up in the base top, the horizontal pole is the horizontality and sets up in two bracing piece tops, and the both ends of horizontal pole and the equal fixed connection in top that corresponds two bracing pieces.
Preferably, both ends of the cross rod are provided with a bolt, both ends of the cross rod are respectively provided with a limiting hole, the two bolt structures are the same in size, each bolt is inserted into the corresponding limiting hole, the middle of the top end of the cross rod is provided with a handle, the handle is of a U-shaped structure, and the handle is fixedly connected with the cross rod.
Preferably, two the same and symmetry of backup pad structure size set up in the both sides that hold the case, and the opposite face of two backup pads respectively is equipped with a spout, the both sides that first slide is close to the backup pad respectively are equipped with a slider, two sliders and the equal fixed connection of first slide to two sliders are through two spouts and the backup pad sliding connection that corresponds that correspond.
Preferably, it is the square structure and the top that holds the case is the fretwork form to hold the case, first reset spring cover is located and is held the incasement to first reset spring's bottom and the inside bottom fixed connection of case that holds.
Preferably, one end of the first sliding plate and one end of the second sliding plate which are on the same side are provided with a pointer, the two pointers are fixedly connected with the first sliding plate and the second sliding plate respectively, one side of the supporting plate close to the lifting mechanism is provided with a scale value, and one side of the supporting column close to the pressure mechanism is provided with a scale value.
Preferably, two guide rods are further arranged between the placing plate and the base plate, the two guide rods are symmetrically arranged on two sides of the base plate, two ends of each guide rod are fixedly connected with the bottom of the placing plate and the top of the base plate, two opposite sides of the second sliding plate are provided with a protruding block, two guide holes are formed in the two protruding blocks, and the two guide rods are in sliding connection with the two corresponding protruding blocks through the guide holes.
Preferably, the top of placing the board is equipped with a year hole, the diameter in year hole is less than second reset spring's internal diameter, the bracing piece that is located between placing board and the base plate is all established with the cover and is connected with weight, second slide and base plate.
The utility model has the advantages that: before use, checking the correcting device, taking out the bolts at two ends of the cross bar, sliding a weight onto the first sliding plate along the cross bar and the supporting rod, compressing the first return spring by the first sliding plate in a way of being in press fit with the sliding block and the sliding grooves at two sides, recording the position of the pointer at a scale value when the first sliding plate is static, sliding the second weight onto the first weight along the cross bar and the supporting rod, continuously compressing the first return spring by the first sliding plate until the first sliding plate is static, recording the position of the pointer at the scale value at the moment, comparing the recorded values twice and observing the compression degree of the spring to draw a conclusion, sliding the weight at the other end of the cross bar down along the cross bar and the supporting rod, dropping the weight onto the second sliding plate through the loading hole at the top of the placing plate and passing through the second return spring, matching with the guide rods at two sides to stretch the second return spring, write down the position of pointer scale interval on the support column, slide second weight to the second slide along horizontal pole and bracing piece after that for the second slide continues tensile second reset spring, write down the position of pointer at scale interval, with twice record vertical comparison and observe the tensile degree of spring, thereby reach the conclusion in the elasticity limit, the object receives the effect of external force and the deformation that produces is directly proportional with the external force that receives, the utility model discloses a slide the weight in proper order to first slide and second slide on can test the pulling force, easy operation, the practicality is strong, has improved the teaching quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments of the present invention are briefly described below.
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic view of a three-dimensional structure of the pressure mechanism of the present invention;
fig. 3 is a schematic view of a three-dimensional structure of the lifting mechanism of the present invention;
FIG. 4 is a schematic view of a three-dimensional structure of the base and the supporting frame of the present invention;
fig. 5 is a schematic perspective view of the guide bar and the second slide plate of the present invention;
FIG. 6 is an enlarged schematic view at A in FIG. 2;
FIG. 7 is an enlarged schematic view at B of FIG. 5;
in the figure: the lifting device comprises a base 1, a support frame 2, weights 3, a pressure mechanism 4, a lifting mechanism 5, an accommodating box 6, a first return spring 7, a first sliding plate 8, a supporting plate 9, a base plate 10, a placing plate 11, a second return spring 12, a second sliding plate 13, a strip-shaped supporting column 14, a cross rod 15, a supporting rod 16, a bolt 17, a limiting hole 18, a handle 19, a sliding groove 20, a sliding block 21, a pointer 22, a guide rod 23, a convex block 24, a carrying hole 25 and a guide hole 26.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.
Referring to fig. 1 to 6, the tension testing device for physics teaching comprises a base 1, a supporting frame 2, weights 3, a pressure mechanism 4 and a force lifting mechanism 5, wherein the base 1 is in a strip-shaped plate structure, the pressure mechanism 4 and the force lifting mechanism 5 are both arranged on the base 1, the supporting frame 2 is in a U-shaped round bar structure, two ends of the bottom of the supporting frame 2 are fixedly connected with the base 1, the weights 3 are sleeved on the supporting frame 2, the pressure mechanism 4 comprises a containing box 6, a first reset spring 7, a first sliding plate 8 and two supporting plates 9, the two supporting plates 9 are fixedly arranged on the base 1 through bolts, the containing box 6 is positioned between the two supporting plates 9, the containing box 6 is fixedly connected with the base 1, the first reset spring 7 is sleeved on the supporting frame 2, the first sliding plate 8 is arranged between the two supporting plates 9, the first sliding plate 8 is sleeved on the supporting frame 2, and the bottom of the first sliding plate 8 is fixedly connected with the top of the first return spring 7, the lifting mechanism 5 comprises a base plate 10, a placing plate 11, a second return spring 12, a second sliding plate 13 and four strip-shaped supporting columns 14, the base plate 10 is fixedly arranged on the base 1, the four strip-shaped supporting columns 14 are symmetrically and fixedly arranged on the base plate 10, the placing plate 11 is fixedly arranged on the top of the four strip-shaped supporting columns 14, the second return spring 12 is sleeved on the other end of the supporting frame 2, both ends of the second return spring 12 are fixedly connected with the placing plate 11 and the second sliding plate 13, the second sliding plate 13 is arranged between the placing plate 11 and the base plate 10, the bolts 17 at both ends of the cross rod 15 are taken out, one weight 3 slides to the first sliding plate 8 along the cross rod 15 and the supporting rod 16, the first sliding plate 8 is pressed and matched with the sliding grooves 20 at both sides by the sliding block 21 so as to compress the, when the first sliding plate 8 is static, the position of the pointer 22 at the scale value is recorded, then the second weight 3 slides to the first weight 3 along the cross rod 15 and the supporting rod 16, the first sliding plate 8 continuously compresses the first return spring 7, when the first sliding plate 8 is static, the position of the pointer 22 at the scale value is recorded at the moment, the two recorded values are compared and the compression degree of the spring is observed, thereby obtaining the conclusion, then one weight 3 at the other end of the cross rod 15 slides down along the cross rod 15 and the supporting rod 16, the weight 3 falls onto the second sliding plate 13 through the loading hole 25 at the top of the placing plate 11 and the second return spring 12, the second sliding plate 13 is matched with the guide rods 23 at the two sides to stretch the second return spring 12, the position of the pointer 22 at the supporting rod is recorded, then the second weight 3 slides to the second sliding plate 13 along the cross rod 15 and the supporting rod 16, so that the second slide 13 continues to stretch the second return spring 12, the position of the pointer 22 at the scale value is noted, the two recordings are compared vertically and the degree of stretching of the spring is observed, and a conclusion is reached.
The both ends of horizontal pole 15 all are equipped with a bolt 17 to the both ends of horizontal pole 15 respectively are equipped with a spacing hole 18, two bolt 17 structure sizes are the same, and every bolt 17 is inserted and is located corresponding spacing hole 18 in, the top middle part of horizontal pole 15 is equipped with a handle 19, handle 19 is the U-shaped structure to handle 19 and horizontal pole 15 fixed connection, the time spent not, 3 covers of a plurality of weights establish with the both ends of horizontal pole 15, utilize bolt 17 to insert and locate in spacing hole 18, in order to avoid unexpected weight 3's landing, and handle 19 sets up directly over horizontal pole 15, both are spacing to the weight 3 at horizontal pole 15 both ends, and weight 3 bumps the hand when avoiding hand-held device again.
Two backup pad 9 structure size the same and symmetry set up in the both sides that hold case 6, and the opposite face of two backup pad 9 respectively is equipped with one spout 20, first slide 8 respectively is equipped with a slider 21 near the both sides of backup pad 9, two sliders 21 and the equal fixed connection of first slide 8 to two sliders 21 are through two spouts 20 that correspond and the backup pad 9 sliding connection who corresponds, when weight 3 falls into on first slide 8, first slide 8 receives pressure, and the slider 21 that sets up in first slide 8 both sides passes through spout 20 and the backup pad 9 sliding connection on both sides, makes first slip move down and compress first reset spring 7, thereby observes the deformation and the scale interval of first reset spring 7 and reaches the purpose.
The top that holds case 6 and be the square structure and hold case 6 is the fretwork form, first reset spring 7 cover is located and is held in case 6 to first reset spring 7's bottom with hold the inside bottom fixed connection of case 6, when first slide 8 moves down and compresses first reset spring 7, hold case 6 and can play limiting displacement to first reset spring 7, avoid the spring crooked.
The two guide rods 23 are further arranged between the placing plate 11 and the base plate 10, the two guide rods 23 are symmetrically arranged on two sides of the base plate 10, two ends of the two guide rods 23 are fixedly connected with the bottom of the placing plate 11 and the top of the base plate 10, two opposite sides of the second sliding plate 13 are respectively provided with a protruding block 24, two protruding blocks 24 are respectively provided with a guide hole 26, the two guide rods 23 are in sliding connection with the two corresponding protruding blocks 24 through the guide holes 26, when the weight 3 slides onto the second sliding plate 13, the protruding blocks 24 arranged on two sides of the second sliding plate 13 are in sliding connection with the two guide rods 23, the purpose that the second sliding plate 13 moves downwards is achieved, the effect that the weight 3 is added twice to observe the stretching degree of the second reset spring 12 is achieved, and the two times of vertical comparison is achieved.
The top of the placing plate 11 is provided with a loading hole 25, the diameter of the loading hole 25 is smaller than the inner diameter of the second return spring 12, the support rod 16 between the placing plate 11 and the base plate 10 is connected with the weight 3, the second sliding plate 13 and the base plate 10 in a sleeved mode, and the diameter of the loading hole 25 is smaller than the inner diameter of the second return spring 12, so that the weight 3 can easily pass through the second return spring 12 to the second sliding plate 13 after passing through the loading hole 25.
The working principle is as follows: before use, the bolts 17 at two ends of the cross bar 15 are taken out, a weight 3 slides to the first sliding plate 8 along the cross bar 15 and the supporting rod 16, the first sliding plate 8 is pressed by the sliding block 21 and the sliding grooves 20 at two sides to compress the first return spring 7, when the first sliding plate 8 is static, the position of the pointer 22 at the scale value is recorded, then the second weight 3 slides to the first weight 3 along the cross bar 15 and the supporting rod 16, the first sliding plate 8 continues to compress the first return spring 7, when the first sliding plate 8 is static, the position of the pointer 22 at the scale value is recorded at the moment, the values recorded twice are compared and the compression degree of the spring is observed, so as to obtain a conclusion, then, one weight 3 at the other end of the cross bar 15 slides down along the cross bar 15 and the supporting rod 16, the weight 3 passes through the loading hole 25 at the top of the placing plate 11 and passes through the second return spring 12 to fall onto the second sliding plate 13, thereby the second reset spring 12 is stretched to the guide bar 23 on second slide 13 cooperation both sides, note down the position of pointer 22 scale interval on the support column, slide second weight 3 on second slide 13 along horizontal pole 15 and bracing piece 16 again, make second slide 13 continue tensile second reset spring 12, note down the position of pointer 22 at the scale interval, will twice record vertical comparison and observe the tensile degree of spring, thereby draw the conclusion, within the elastic limit, the deformation that the object received the effect of external force and produced is directly proportional with the external force that receives.
Claims (8)
1. The tension testing device for physical teaching is characterized by comprising a base (1), a supporting frame (2), weights (3), a pressure mechanism (4) and a force lifting mechanism (5), wherein the base (1) is of a strip-shaped plate structure, the pressure mechanism (4) and the force lifting mechanism (5) are arranged on the base (1), the supporting frame (2) is of a U-shaped round rod structure, two ends of the bottom of the supporting frame (2) are fixedly connected with the base (1), the weights (3) are sleeved on the supporting frame (2), the pressure mechanism (4) comprises a containing box (6), a first reset spring (7), a first sliding plate (8) and two supporting plates (9), the two supporting plates (9) are fixedly arranged on the base (1) through bolts, the containing box (6) is positioned between the two supporting plates (9), and the containing box (6) is fixedly connected with the base (1), the first reset spring (7) is sleeved on the support frame (2), the first sliding plate (8) is arranged between the two support plates (9), the first sliding plate (8) is sleeved on the support frame (2), the bottom of the first sliding plate (8) is fixedly connected with the top of the first reset spring (7), the force lifting mechanism (5) comprises a base plate (10), a placing plate (11), a second reset spring (12), a second sliding plate (13) and four strip-shaped support columns (14), the base plate (10) is fixedly arranged on the base (1), the four strip-shaped support columns (14) are symmetrically and fixedly arranged on the base plate (10), the placing plate (11) is fixedly arranged at the tops of the four strip-shaped support columns (14), the second reset spring (12) is sleeved at the other end of the support frame (2), and the two ends of the second reset spring (12) are fixedly connected with the placing plate (11) and the second sliding plate (13), the second sliding plate (13) is arranged between the placing plate (11) and the base plate (10).
2. The tension testing device for physics teaching of claim 1, wherein the supporting frame (2) is composed of a cross bar (15) and two supporting bars (16), the two supporting bars (16) have the same structure and size, the two supporting bars (16) are symmetrically arranged on the top of the base (1) in a vertical state, the cross bar (15) is arranged on the top of the two supporting bars (16) in a horizontal state, and two ends of the cross bar (15) are fixedly connected with the tops of the two corresponding supporting bars (16).
3. The tension testing device for physics teaching as claimed in claim 2, wherein both ends of the cross bar (15) are provided with a bolt (17), and both ends of the cross bar (15) are respectively provided with a limiting hole (18), the two bolts (17) have the same structure size, each bolt (17) is inserted into the corresponding limiting hole (18), the middle of the top end of the cross bar (15) is provided with a handle (19), the handle (19) is of a U-shaped structure, and the handle (19) is fixedly connected with the cross bar (15).
4. The tension testing device for physics teaching according to claim 1, characterized in that the two supporting plates (9) have the same structural size and are symmetrically arranged on both sides of the accommodating box (6), the opposite surfaces of the two supporting plates (9) are respectively provided with a sliding groove (20), the two sides of the first sliding plate (8) close to the supporting plates (9) are respectively provided with a sliding block (21), the two sliding blocks (21) and the first sliding plate (8) are fixedly connected, and the two sliding blocks (21) are slidably connected with the corresponding supporting plates (9) through the corresponding two sliding grooves (20).
5. The tension testing device for physics teaching according to claim 4, wherein the containing box (6) is a cube structure and the top of the containing box (6) is hollow, the first return spring (7) is sleeved in the containing box (6), and the bottom of the first return spring (7) is fixedly connected with the bottom end inside the containing box (6).
6. The tension testing device for physics teaching according to claim 1, wherein one end of the first sliding plate (8) and one end of the second sliding plate (13) are both provided with a pointer (22), the two pointers (22) are respectively fixedly connected with the first sliding plate (8) and the second sliding plate (13), one side of the supporting plate (9) close to the lifting mechanism (5) is provided with a scale value, and one side of the supporting column close to the pressure mechanism (4) is provided with a scale value.
7. The tension testing device for physics teaching according to claim 1, wherein two guide rods (23) are further disposed between the placing plate (11) and the base plate (10), the two guide rods (23) are symmetrically disposed on two sides of the base plate (10), two ends of the two guide rods (23) are fixedly connected with the bottom of the placing plate (11) and the top of the base plate (10), two opposite sides of the second sliding plate (13) are respectively provided with a projection (24), two guide holes (26) are disposed on the two projections (24), and the two guide rods (23) are slidably connected with the two corresponding projections (24) through the guide holes (26).
8. The tension testing device for physics teaching according to claim 2 or 7, wherein a loading hole (25) is provided at the top of the placing plate (11), the diameter of the loading hole (25) is smaller than the inner diameter of the second return spring (12), and the support rod (16) between the placing plate (11) and the base plate (10) is sleeved with the weight (3), the second sliding plate (13) and the base plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922391770.4U CN211425724U (en) | 2019-12-26 | 2019-12-26 | Tension testing device for physics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922391770.4U CN211425724U (en) | 2019-12-26 | 2019-12-26 | Tension testing device for physics teaching |
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| Publication Number | Publication Date |
|---|---|
| CN211425724U true CN211425724U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922391770.4U Expired - Fee Related CN211425724U (en) | 2019-12-26 | 2019-12-26 | Tension testing device for physics teaching |
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| CN (1) | CN211425724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649133A (en) * | 2020-12-23 | 2021-04-13 | 湖北省农业科学院粮食作物研究所 | Portable device for measuring root system disc binding force |
-
2019
- 2019-12-26 CN CN201922391770.4U patent/CN211425724U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649133A (en) * | 2020-12-23 | 2021-04-13 | 湖北省农业科学院粮食作物研究所 | Portable device for measuring root system disc binding force |
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Granted publication date: 20200904 Termination date: 20211226 |
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