CN214955564U

CN214955564U - Physical experiment device for demonstrating friction force

Info

Publication number: CN214955564U
Application number: CN202121016679.5U
Authority: CN
Inventors: 高丽丽
Original assignee: Sichuan University of Science and Engineering
Current assignee: Sichuan University of Science and Engineering
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-30
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a physics experimental apparatus for demonstrating frictional force relates to physics experimental apparatus technical field, including strutting arrangement, transmission, connecting device, slider and fastener, strutting arrangement includes the base, the fixed block, axle sleeve and axis of rotation, and transmission includes the sliding block, head rod, the fixture block, draw-in groove and regulating block, and the draw-in groove is the rectangle cell body, and connecting device includes hub connection piece, connecting axle and scale, and slider is including surveying test panel and outstanding piece, and fastener includes the telescopic link, connecting block and fastening block. The utility model discloses, support fixedly through the base to equipment, prevent that equipment from taking place to remove, reduce the influence to the experiment precision, head rod and second connecting rod support surveying test panel, make things convenient for the connecting rod to drive through fixture block, draw-in groove and regulating block and survey test panel and go up and down, compare through the convenient different test material of changing of support pole.

Description

Physical experiment device for demonstrating friction force

Technical Field

The utility model relates to a physics experimental apparatus technical field, in particular to physics experimental apparatus for demonstrating frictional force.

Background

In the friction test, an accelerated friction test is performed on the part of an object or a material actually facing friction so as to test the friction resistance in a short time, in the physical teaching experiment, friction force demonstration is necessary, and the friction force is related to objects which rub against each other, so the description of the friction force in physics is not general and is not as accurate as other forces, and a physical experiment device for demonstrating the friction force is needed.

The existing friction physical experiment device has the defects that the inclination angle cannot be visually checked, the friction bottom plate is inconvenient to replace and the like, and therefore the physical experiment device for demonstrating the friction is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a physics experimental apparatus for demonstrating frictional force, can effectively solve and can't carry out audio-visual looking over inclination in the background art, and shortcoming such as inconvenient change friction bottom plate.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a physical experiment device for demonstrating friction force comprises a supporting device, a transmission device, a connecting device, a sliding device and a fastening device, wherein the supporting device comprises a base, fixed blocks, shaft sleeves and a rotating shaft, the fixed blocks are arranged on the upper surface of the base, a plurality of through holes are formed in one side surface of the fixed blocks, the shaft sleeves are respectively arranged in the through holes, the rotating shaft penetrates through the shaft sleeves and is in rotating fit with the shaft sleeves, the transmission device comprises sliding blocks, first connecting rods, clamping blocks, clamping grooves and adjusting blocks, the sliding blocks are in rotating fit with the rotating shaft through threaded screw holes, one ends of the first connecting rods are respectively connected with the side surfaces of the sliding blocks through screws, the clamping grooves are formed in one side surface of the adjusting blocks, the clamping blocks are arranged in the clamping grooves, and the clamping grooves are rectangular groove bodies, connecting device includes hub connection piece, connecting axle and scale, and is a plurality of the hub connection piece all sets up in the base upper surface, and is a plurality of the scale sets up respectively in a plurality of hub connection piece side surfaces, slider is including surveying test panel and outstanding piece, the regulating block sets up in surveying the test panel lower surface, survey test panel both sides surface and a plurality of hub connection piece side surface and all be equipped with a plurality of round holes, and is a plurality of the connecting axle sets up respectively in a plurality of round holes, and is a plurality of outstanding piece all sets up in surveying the test panel upper surface, fastener includes telescopic link, connecting block and fastening block, and a plurality of telescopic link one end is respectively with a plurality of outstanding piece upper surface connections, a plurality of the telescopic link other end is connected with the connecting block lower surface, and a plurality of fastening block is installed respectively in a plurality of connecting block upper surfaces, wherein fixed block, axle sleeve, head rod, The quantity of fixture block, hub connection piece, scale, telescopic link, connecting block and fastening block is two, supports the axis of rotation through fixed block and axle sleeve, and the sliding block makes things convenient for the head rod to carry out the transmission that goes up and down, and the hub connection piece supports the connecting axle, and telescopic link and connecting block are convenient to be supported test material, and the fastening block is convenient to be fixed test material.

Preferably, the support device further comprises a handle, the handle is arranged at one end of the rotating shaft, and the rotating shaft is convenient to rotate through the handle.

Preferably, transmission still includes the second connecting rod, and is a plurality of second connecting rod one end passes through the screw rotation with a plurality of first connecting rod other ends respectively and is connected, and is a plurality of the second connecting rod other end passes through the screw rotation with a plurality of fixture block one end respectively and is connected, wherein, the quantity of second connecting rod is two, conveniently supports surveying the board through the second connecting rod.

Preferably, a plurality of the graduated scales are semicircular, and the rising angle of the test plate can be conveniently observed through the graduated scales.

Preferably, the sliding device further comprises a first test slot and a second test slot, wherein the first test slot and the second test slot are both arranged on the upper surface of the test board, and the first test slot and the second test slot are used for conveniently testing the material.

Preferably, the fastening device further comprises a plurality of supporting rods, wherein the supporting rods are arranged on one side surface of the connecting blocks respectively, the number of the supporting rods is two, and the replaced test material is replaced conveniently through the supporting rods.

Preferably, the lower surface of the base is provided with a non-slip mat, and the base can be prevented from sliding through the non-slip mat.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, support fixedly through the base to equipment, prevent that equipment from taking place to remove, reduce the influence to the experiment precision, adopt to rotate the handle and make the axis of rotation drive the sliding block and carry out relative movement, conveniently cooperate head rod and second connecting rod to supporting surveying test panel, make things convenient for the connecting rod to drive through fixture block, draw-in groove and regulating block and survey test panel and go up and down.

2. The utility model discloses in, fix surveying test panel one end through hub connection piece and connecting axle, make things convenient for it to rotate and adjust, adopt first test groove and second test groove convenience to test and contrast the frictional force of material, conveniently change different test material through holding up the pole and contrast.

Drawings

FIG. 1 is a schematic view of an external overall structure of a physical experiment apparatus for demonstrating friction force according to the present invention;

fig. 2 is a schematic external isometric structural view of a physical experiment device for demonstrating friction force according to the present invention;

fig. 3 is a schematic view of a partial structure at a position a in fig. 1 of a physical experiment apparatus for demonstrating friction force according to the present invention;

fig. 4 is a schematic view of a partial structure at B in fig. 1 of a physical experiment apparatus for demonstrating friction force according to the present invention;

fig. 5 is a schematic diagram of a local structure at C in fig. 1 of a physical experiment apparatus for demonstrating friction force according to the present invention.

In the figure: 100. a support device; 101. a base; 102. a fixed block; 103. a shaft sleeve; 104. a rotating shaft; 105. a handle; 200. a transmission device; 201. a slider; 202. a first connecting rod; 203. a second connecting rod; 204. a clamping block; 205. a card slot; 206. an adjusting block; 300. a connecting device; 301. a shaft connecting block; 302. a connecting shaft; 303. a graduated scale; 400. a sliding device; 401. a test board; 402. a first test slot; 403. a second test slot; 404. a protruding block; 500. a fastening device; 501. a telescopic rod; 502. connecting blocks; 503. a lifting rod; 504. and (5) fastening the block.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention relates to a physical experiment device for demonstrating friction, including a supporting device 100, a transmission device 200, a connecting device 300, a sliding device 400 and a fastening device 500, wherein the supporting device 100 includes a base 101, fixing blocks 102, shaft sleeves 103 and a rotating shaft 104, the fixing blocks 102 are all disposed on the upper surface of the base 101, a plurality of through holes are disposed on a side surface of the fixing blocks 102, the shaft sleeves 103 are disposed in the through holes, the rotating shaft 104 penetrates the shaft sleeves and is rotatably engaged with the shaft sleeves 103, the transmission device 200 includes a sliding block 201, a first connecting rod 202, a clamping block 204, a clamping groove 205 and an adjusting block 206, the sliding block 201 and the rotating shaft 104 are rotatably engaged through threaded screw holes, one end of the first connecting rods 202 is connected with side surfaces of the sliding block 201 through screws, the clamping groove 205 is disposed on a side surface of the adjusting block 206, the clamping blocks 204 are arranged in the clamping grooves 205, the clamping grooves 205 are rectangular grooves, the connecting device 300 comprises a plurality of shaft connecting blocks 301, connecting shafts 302 and graduated scales 303, the shaft connecting blocks 301 are arranged on the upper surface of the base 101, the graduated scales 303 are respectively arranged on one side surface of the shaft connecting blocks 301, the sliding device 400 comprises a testing plate 401 and protruding blocks 404, adjusting blocks 206 are arranged on the lower surface of the testing plate 401, a plurality of round holes are formed in the two side surfaces of the testing plate 401 and one side surface of the shaft connecting blocks 301, the connecting shafts 302 are respectively arranged in the round holes, the protruding blocks 404 are respectively arranged on the upper surface of the testing plate 401, the fastening device 500 comprises telescopic rods 501, connecting blocks 502 and fastening blocks 504, one ends of the telescopic rods 501 are respectively connected with the upper surfaces of the protruding blocks 404, the other ends of the telescopic rods 501 are connected with the lower surfaces of the connecting blocks 502, the fastening blocks 504 are respectively arranged on the upper surfaces of the connecting blocks 502, wherein, fixed block 102, axle sleeve 103, the sliding block 201, head rod 202, fixture block 204, hub connection piece 301, scale 303, telescopic link 501, the quantity of connecting block 502 and fastening block 504 is two, support axis of rotation 104 through fixed block 102 and axle sleeve 103, sliding block 201 makes things convenient for head rod 202 to carry out the transmission of going up and down, hub connection piece 301 supports connecting axle 302, telescopic link 501 and connecting block 502 conveniently support the test material, fastening block 504 conveniently fixes the test material.

Referring to fig. 1-4, the supporting device 100 further includes a handle 105, the handle 105 is disposed at one end of the rotating shaft 104, and the rotating shaft 104 is convenient to rotate through the handle 105.

Referring to fig. 1-5, the transmission device 200 further includes a second connecting rod 203, one end of each of the second connecting rods 203 is rotatably connected to the other end of each of the first connecting rods 202 through a screw, and the other end of each of the second connecting rods 203 is rotatably connected to one end of each of the clamping blocks 204 through a screw, wherein the number of the second connecting rods 203 is two, and the second connecting rods 203 are used for conveniently supporting the test board 401.

Referring to fig. 1-3, the scales 303 are semicircular, so that the rising angle of the test board 401 can be conveniently observed through the scales 303.

Referring to fig. 1-2, the slider 400 further includes a first test slot 402 and a second test slot 403, both the first test slot 402 and the second test slot 403 disposed on an upper surface of the test board 401, the first test slot 402 and the second test slot 403 facilitating testing of the material.

Referring to fig. 1-2, the fastening device 500 further includes a plurality of supporting rods 503, the plurality of supporting rods 503 are respectively disposed on a side surface of the plurality of connecting blocks 502, wherein the number of the supporting rods 503 is two, and the replaced test material is conveniently replaced by the supporting rods 503.

Referring to fig. 1 to 4, the lower surface of the base 101 is provided with a non-slip pad, by which the base 101 can be prevented from slipping.

The utility model discloses the theory of operation:

referring to fig. 1-5, the utility model relates to a physics experiment device for demonstrating frictional force, in operation, the base 101 supports and fixes equipment, prevent the equipment from moving, thereby influence the experiment precision, make the axis of rotation 104 drive the sliding block 201 to move relatively through the screw thread through rotating the handle 105, thereby cooperate with first connecting rod 202 and second connecting rod 203 to go up and down to survey test panel 401, fixture block 204, draw-in groove 205 and regulating block 206 restrict second connecting rod 203 and are connected with survey panel 401, fix one end of survey panel 401 through coupling block 301 and connecting shaft 302 simultaneously, facilitate its rotation regulation, conveniently test and contrast the frictional force of material through first test slot 402 and second test slot 403, when comparing through different test materials that need to be changed, can put into and hold up pole 503, fix the material through fastening block 504, thereby facilitating the friction performance test of the material.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Physical experiment device for demonstrating friction, comprising a support device (100), a transmission device (200), a connection device (300), a sliding device (400) and a fastening device (500), characterized in that: the supporting device (100) comprises a base (101), fixing blocks (102), shaft sleeves (103) and a rotating shaft (104), wherein the fixing blocks (102) are arranged on the upper surface of the base (101), a plurality of through holes are formed in one side surface of the fixing blocks (102), the shaft sleeves (103) are arranged in the through holes respectively, the rotating shaft (104) penetrates through the shaft sleeves and is in rotating fit with the shaft sleeves (103), the transmission device (200) comprises sliding blocks (201), first connecting rods (202), clamping blocks (204), clamping grooves (205) and adjusting blocks (206), the sliding blocks (201) are in rotating fit with the rotating shaft (104) through threaded screw holes, one ends of the first connecting rods (202) are connected with the side surfaces of the sliding blocks (201) through screws respectively, and the clamping grooves (205) are arranged on one side surface of the adjusting blocks (206), a plurality of fixture block (204) all sets up in draw-in groove (205), draw-in groove (205) are the rectangle cell body, connecting device (300) are including hub block (301), connecting axle (302) and scale (303), and are a plurality of hub block (301) all sets up in base (101) upper surface, and is a plurality of scale (303) set up respectively in a plurality of hub block (301) side surface, slider (400) are including surveying test panel (401) and outstanding piece (404), regulating block (206) set up in surveying test panel (401) lower surface, survey test panel (401) both sides surface and a plurality of hub block (301) side surface and all be equipped with a plurality of round holes, and are a plurality of connecting axle (302) set up respectively in a plurality of round holes, and are a plurality of outstanding piece (404) all set up in surveying test panel (401) upper surface, fastener (500) include telescopic link (501), Connecting block (502) and fastening block (504), a plurality of telescopic link (501) one end respectively with a plurality of outstanding piece (404) upper surface connection, a plurality of telescopic link (501) other end and connecting block (502) lower surface connection, a plurality of fastening block (504) are installed respectively in a plurality of connecting block (502) upper surface.

2. A physical testing apparatus for demonstrating friction force according to claim 1, wherein: the supporting device (100) further comprises a handle (105), and the handle (105) is arranged at one end of the rotating shaft (104).

3. A physical testing apparatus for demonstrating friction force according to claim 1, wherein: the transmission device (200) further comprises second connecting rods (203), one ends of the second connecting rods (203) are respectively in screw rotation connection with the other ends of the first connecting rods (202), and the other ends of the second connecting rods (203) are respectively in screw rotation connection with one ends of the clamping blocks (204).

4. A physical testing apparatus for demonstrating friction force according to claim 1, wherein: the graduated scales (303) are all semicircular.

5. A physical testing apparatus for demonstrating friction force according to claim 1, wherein: the slider (400) further comprises a first test slot (402) and a second test slot (403), wherein the first test slot (402) and the second test slot (403) are both arranged on the upper surface of the test plate (401).

6. A physical testing apparatus for demonstrating friction force according to claim 1, wherein: the fastening device (500) further comprises a plurality of supporting rods (503), and the plurality of supporting rods (503) are respectively arranged on the surface of one side of the plurality of connecting blocks (502).

7. A physical testing apparatus for demonstrating friction force according to claim 1, wherein: and the lower surface of the base (101) is provided with an anti-slip pad.