CN211207783U - Mechanical design course combination teaching aid - Google Patents
Mechanical design course combination teaching aid Download PDFInfo
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- CN211207783U CN211207783U CN202020051396.3U CN202020051396U CN211207783U CN 211207783 U CN211207783 U CN 211207783U CN 202020051396 U CN202020051396 U CN 202020051396U CN 211207783 U CN211207783 U CN 211207783U
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Abstract
The utility model discloses a mechanical design course combined teaching aid, the structure of which comprises a bottom plate, a supporting leg, a control box, a fixed shell, a first driving control structure, a second driving control structure, a linear reciprocating mechanism, a reciprocating swing mechanism, a motor, a driving gear, a driven gear and a tooth groove, the utility model adopts a motor to drive two gears to rotate, and the two gears respectively drive the two mechanisms, thereby achieving the effect that one motor drives a plurality of mechanisms, and the driving control structures are respectively arranged at the bottoms of the two mechanisms, a connecting shaft is arranged in the driving control structure, the connection driving control of the mechanisms can be realized by controlling the connection of the connecting shaft and the gears, a plurality of teaching aids are driven by one motor, and the teaching aid can control the operation of a single mechanism, thereby increasing the convenience of the teaching aid, and the manufacturing cost brought by a plurality of motors is reduced.
Description
Technical Field
The utility model relates to a teaching aid technical field, concretely relates to mechanical design course combination teaching aid.
Background
The mechanical design is an important component of mechanical engineering, the working principle, the structure, the motion mode, the force and energy transmission mode, the material, the shape and the size of each part, the lubricating method and the like of the machine are conceived, analyzed and calculated according to use requirements, the calculated results are converted into specific descriptions to serve as the working process of a manufacturing basis, the teaching aid is a tool for assisting teaching by teachers, the teaching aid is used in courses at proper time, and the teaching quality and the efficiency can be effectively improved.
Present mechanical design course teaching aid function is comparatively single, and one set of teaching aid can only show a mechanical motion, and the universality is lower, need drive the teaching aid through drive arrangement respectively, increases manufacturing cost.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art not enough, provide a mechanical design course combination teaching aid now, it is comparatively single to have solved current mechanical design course teaching aid function, and one set of teaching aid only can show a mechanical motion, and the universality is lower, need drive the teaching aid through drive arrangement respectively, increases manufacturing cost's problem.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a combined teaching aid for mechanical design courses, which comprises a bottom plate,
the first driving control structure is used for connecting the linear reciprocating mechanism;
the second driving control structure is used for connecting the reciprocating swing mechanism;
the control box is used for controlling the motor;
further, the first drive control structure and the second drive control structure are consistent in structure;
furthermore, switch buttons are installed at the front end of the control box, and two switch buttons are arranged.
Furthermore, the supporting legs are fixed at the corners of the bottom end of the bottom plate, the control box is installed on the left side of the top end of the bottom plate, the middle of the top end of the bottom plate is locked with the fixing shell through bolts, the left end of the fixing shell is locked with the motor through bolts, a first driving control structure and a second driving control structure are installed on the front side and the rear side of the middle of the right side of the fixing shell respectively, a linear reciprocating mechanism and a reciprocating swinging mechanism are installed on the top ends of the first driving control structure and the second driving control structure respectively, an output shaft at the right end of the motor penetrates through the left side wall of the fixing shell and is welded with the circle center of the driving gear, the rear side of the driving gear is meshed with the driven gear, tooth grooves are formed in the circle centers.
Further, a drive control structure comprises shell, pressing plate, connecting axle, loose bearing, loose gear, slider, buckle mechanism, guide arm and first spring, the shell right side is provided with the pressing plate, pressing plate left end and connecting axle are welded each other, the connecting axle left end transversely runs through shell, loose bearing and loose gear in proper order and stretches out, and the connecting axle outside welds each other with loose bearing and loose gear centre of a circle department, the slider has all been welded at both ends around the loose bearing, the slider front end and the mutual lock joint of buckle mechanism, the guide arm is provided with two, and transversely runs through the slider of both sides around the loose bearing respectively, the slider left side carries out elastic connection through first spring and shell, and first spring cup joints in the guide arm outside, the shell left end passes through the mutual lock solid of bolt and set casing.
Furthermore, the linear reciprocating mechanism is composed of a first fixed gear, a first fixed rotating shaft, a rotary disc, a first connecting rod and a movable rod, the first fixed rotating shaft is inserted in the center of the circle of the first fixed gear, the right end of the first fixed rotating shaft is locked with the center of the circle of the rotary disc through a bolt, the right edge of the rotary disc is rotatably connected with the bottom end of the first connecting rod through a rotating shaft, the top end of the first connecting rod is rotatably connected with the movable rod through a rotating shaft, the movable rod slides up and down along the inner wall of a limiting pipe, the bottom end of the limiting pipe is locked with a shell of a first drive control structure through a bolt, and the left end of the first fixed rotating shaft is locked with the shell of the first drive control structure through a shaft seat.
Furthermore, reciprocating swing mechanism comprises second fixed gear, the fixed pivot of second, second connecting rod, activity pipe and polished rod, the mutual grafting of the fixed pivot of second department of the centre of a circle of the fixed gear of second and the fixed pivot of second, the fixed pivot right-hand member of second locks each other with second connecting rod one end, and second connecting rod other end right side rotates with the activity pipe through the pivot and is connected, the activity pipe cup joints in the polished rod outside, and slides along the polished rod outer wall, the polished rod bottom cup joints in the connecting axle outside, the fixed pivot left end of second passes through the axle bed and locks each other with the shell of second drive control structure.
Further, buckle mechanism comprises limiting plate, straight-bar, second spring, buckle board and the fixed pivot of third, the limiting plate rear end runs through the shell front end wall, and stretches into and rotate through pivot and buckle board bottom in the shell and be connected, buckle board middle part is followed the fixed pivot of third and is carried out the front and back rotation, the limiting plate rear end carries out elastic connection through second spring and shell, and the second spring cup joints in the straight-bar outside, buckle board rear end top and the mutual lock joint of slider of loose bearing front end.
Furthermore, the left end of the connecting shaft is gradually reduced from right to left, and a latch is arranged on the outer side of the left end of the connecting shaft.
Furthermore, a bearing is embedded into the left side inside the pressing plate, and the right end of the connecting shaft and the circle center of the bearing on the left side inside the pressing plate are welded with each other.
Further, the first spring and the second spring are both compression springs.
Furthermore, the connecting shaft is made of hard alloy.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
the method has the advantages that: the utility model discloses an adopt a motor to drive two gears and rotate, and two gears drive two mechanisms respectively, have reached a motor and carried out driven effect to a plurality of mechanisms.
The advantages are two: the utility model discloses installed the drive control structure respectively in two mechanism bottoms, the inside connecting axle that is provided with of drive control structure, through being connected of control connection axle and gear, can be to the drive control that connects of mechanism, drive a plurality of teaching aids through a motor, and make this teaching aid can carry out the function of single mechanism and control, increase the convenience of teaching aid, and reduced the manufacturing cost that a plurality of motors brought.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the internal structure of the fixing shell of the present invention;
fig. 3 is a sectional view of the internal structure of the first driving control structure of the present invention;
FIG. 4 is a right side sectional view of the structure of the fastening mechanism of the present invention;
FIG. 5 is a sectional view of the internal structure of the linear reciprocating mechanism of the present invention;
fig. 6 is a sectional view of the internal structure of the reciprocating oscillating mechanism of the present invention.
In the figure: a bottom plate-1, a supporting foot-2, a control box-3, a fixed shell-4, a first drive control structure-5, a second drive control structure-6, a linear reciprocating mechanism-7, a reciprocating swing mechanism-8, a motor-9, a driving gear-10, a driven gear-11, a tooth socket-12, a shell-51, a pressing plate-52, a connecting shaft-53, a movable bearing-54, a movable gear-55, a sliding block-56, a buckle mechanism-57, a guide rod-58, a first spring-59, a first fixed gear-71, a first fixed rotating shaft-72, a rotating disc-73, a first connecting rod-74, a movable rod-75, a limiting pipe-76, a second fixed gear-81, a second fixed rotating shaft-82, a first fixed rotating shaft-72, a second rotating shaft-81, a second fixed rotating, A second connecting rod-83, a movable pipe-84, a polished rod-85, a limit plate-571, a straight rod-572, a second spring-573, a buckle plate-574 and a third fixed rotating shaft-575.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the present invention provides a combined teaching aid for mechanical design courses: comprises a bottom plate 1 and a plurality of supporting plates,
the first driving control structure 5 is used for connecting the linear reciprocating mechanism 7 and controlling the driving of the linear reciprocating mechanism 7;
the second driving control structure 6 is used for connecting the reciprocating swing mechanism 8 and controlling the driving of the reciprocating swing mechanism 8;
the control box 3 is used for controlling the motor 9 and providing power;
the first drive control structure 5 and the second drive control structure 6 are consistent in structure, so that the linear reciprocating mechanism 7 and the reciprocating swinging mechanism 8 are conveniently driven and controlled;
wherein, the switch button is installed to control box 3 front end, and the switch button is provided with two, controls starting of motor 9 and finishes.
Wherein, the bottom end edge of the bottom plate 1 is fixed with a supporting leg 2, the left side of the top end of the bottom plate 1 is provided with a control box 3, the middle part of the top end of the bottom plate 1 is mutually locked with the fixed shell 4 through a bolt, the left end of the fixed shell 4 is mutually locked with the motor 9 through a bolt, a first drive control structure 5 and a second drive control structure 6 are respectively arranged at the front side and the rear side of the middle part at the right side of the fixed shell 4, and the top ends of the first drive control structure 5 and the second drive control structure 6 are respectively provided with a linear reciprocating mechanism 7 and a reciprocating swinging mechanism 8, an output shaft at the right end of the motor 9 penetrates through the left side wall of the fixed shell 4 and is mutually welded with the circle center of the driving gear 10, the rear side of the driving gear 10 is meshed with the driven gear 11, tooth grooves 12 are formed in the centers of the right sides of the driving gear 10 and the driven gear 11, and the control box 3 is electrically connected with the motor 9.
Wherein, the first driving control structure 5 is composed of a shell 51, a pressing plate 52, a connecting shaft 53, a movable bearing 54, a movable gear 55, a slider 56, a buckle mechanism 57, a guide rod 58 and a first spring 59, the pressing plate 52 is arranged on the right side of the shell 51, the left end of the pressing plate 52 is welded with the connecting shaft 53, the left end of the connecting shaft 53 transversely penetrates through the shell 51, the movable bearing 54 and the movable gear 55 in sequence to extend out, the outer side of the connecting shaft 53 is welded with the centers of the movable bearing 54 and the movable gear 55, the sliders 56 are welded at the front end and the rear end of the movable bearing 54, the front end of the slider 56 is buckled with the buckle mechanism 57, the guide rod 58 is provided with two sliders 56 which respectively transversely penetrate through the front side and the rear side of the movable bearing 54, the left side of the slider 56 is elastically connected with the shell 51 through the first spring 59, and the, the left end of the outer shell 51 is locked with the fixed shell 4 through bolts.
The linear reciprocating mechanism 7 is composed of a first fixed gear 71, a first fixed rotating shaft 72, a rotating disc 73, a first connecting rod 74 and a movable rod 75, the first fixed rotating shaft 72 is inserted in the center of a circle of the first fixed gear 71, the right end of the first fixed rotating shaft 72 is locked with the center of the circle of the rotating disc 73 through a bolt, the right edge of the rotating disc 73 is rotatably connected with the bottom end of the first connecting rod 74 through a rotating shaft, the top end of the first connecting rod 74 is rotatably connected with the movable rod 75 through a rotating shaft, the movable rod 75 slides up and down along the inner wall of a limiting pipe 76, the bottom end of the limiting pipe 76 is locked with a shell 51 of the first drive control structure 5 through a bolt, and the left end of the first fixed rotating shaft 72 is locked with the shell 51 of the first drive control structure 5 through a shaft seat.
The reciprocating swing mechanism 8 is composed of a second fixed gear 81, a second fixed rotating shaft 82, a second connecting rod 83, a movable pipe 84 and a polished rod 85, the circle center of the second fixed gear 81 is inserted into the second fixed rotating shaft 82, the right end of the second fixed rotating shaft 82 is locked with one end of the second connecting rod 83, the right side of the other end of the second connecting rod 83 is rotatably connected with the movable pipe 84 through a rotating shaft, the movable pipe 84 is sleeved outside the polished rod 85 and slides along the outer wall of the polished rod 85, the bottom end of the polished rod 85 is sleeved outside the connecting shaft 53, and the left end of the second fixed rotating shaft 82 is locked with the shell 51 of the second drive control structure 6 through a shaft seat.
The fastening mechanism 57 is composed of a limiting plate 571, a straight rod 572, a second spring 573, a fastening plate 574 and a third fixed rotating shaft 575, wherein the rear end of the limiting plate 571 penetrates through the front end wall of the housing 51 and extends into the housing 51 to be rotatably connected with the bottom end of the fastening plate 574 through the rotating shaft, the middle part of the fastening plate 574 rotates back and forth along the third fixed rotating shaft 575, the rear end of the limiting plate 571 is elastically connected with the housing 51 through the second spring 573, the second spring 573 is sleeved outside the straight rod 572, and the top of the rear end of the fastening plate 574 is fastened with the sliding block 56 at the front end of the movable bearing 54.
Wherein, the left end of the connecting shaft 53 tapers from right to left, and the outer side of the left end of the connecting shaft 53 is provided with a latch, so that the connecting shaft 53 can be conveniently inserted into the driving gear 10 and the driven gear 11 and connected with the driving gear 10 and the driven gear 11.
A bearing is embedded in the left side of the interior of the pressing plate 52, and the right end of the connecting shaft 53 is welded to the center of the bearing on the left side of the interior of the pressing plate 52, so that the right end of the connecting shaft 53 rotates along the bearing, and the pressing operation of the pressing plate 52 is facilitated.
The first spring 59 and the second spring 573 both adopt compression springs, have good supporting effect and are not easy to damage.
The connecting shaft 53 is made of hard alloy, so that the connecting shaft is high in hardness and not easy to damage.
The connecting shaft 53 is made of hard alloy, the hard alloy is made of hard compound of refractory metal and bonding metal through a powder metallurgy process, the hard alloy has a series of excellent performances such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, particularly the high hardness and the wear resistance, the hard alloy is basically kept unchanged even at the temperature of 500 ℃, and the hard alloy still has high hardness at the temperature of 1000 ℃.
The working principle is as follows:
firstly, the method comprises the following steps: before the device is used, the device is firstly placed on a plane position through the supporting legs 2, and then the control box 3 is connected with an external power supply to supply power;
secondly, the method comprises the following steps: when the device is used, a switch button at the front end of the control box 3 is pressed to drive the motor 9, power generated by the motor 9 drives the circle center at the left end of the driving gear 10 to rotate through the output shaft, and the driving gear 10 drives the driven gear 11 at the rear end to rotate;
thirdly, the method comprises the following steps: when the linear reciprocating mechanism 7 needs to be started, the pressing plate 52 on the right side of the first driving control structure 5 is pressed, the pressing plate 52 pushes the connecting shaft 53 leftwards, the connecting shaft 53 drives the movable bearing 54 and the movable gear 55 to move leftwards, the connecting shaft 53, the movable bearing 54 and the movable gear 55 slide leftwards due to the sliding blocks 56 on the front side and the rear side of the movable bearing 54 sliding along the guide rods 58, the connecting shaft 53, the movable bearing 54 and the movable gear 55 slide leftwards linearly, the left end of the connecting shaft 53 tapers from right to left, and the outer side of the left end of the connecting shaft 53 is provided with a latch, so that the connecting shaft 53 is inserted into the driving gear 10 to be connected with the driving gear 10 and the driven gear 11, the movable gear 55 moves leftwards to be engaged with the first fixed gear 71, and the sliding block 56 is buckled with the buckle plate 574 when moving leftwards to limit the movement of the, the connecting shaft 53 drives the first fixed gear 71 to rotate through the movable gear 55, the first fixed gear 71 drives the center of the rotary table 73 to rotate through the first fixed rotating shaft 72, the right side of the rotary table 73 drives the bottom end of the first connecting rod 74 to revolve around the rotary table 73 through the rotating shaft, and the first connecting rod 74 drives the movable rod 75 to reciprocate up and down along the inner wall of the limiting pipe 76;
fourthly: when the reciprocating swing mechanism 8 needs to be started, because the first drive control structure 5 and the second drive control structure 6 are consistent in structure, the pressing plate 52 on the right side of the second drive control structure 6 is pressed down to connect the driven gear 11 with the connecting shaft 53, so that the movable gear 55 in the second drive control structure 6 drives the second fixed gear 81 to rotate, the second fixed gear 81 drives one end of the second connecting rod 83 to rotate through the second fixed rotating shaft 82 at the center of the circle, the other end of the second connecting rod 83 drives the movable pipe 84 to slide along the outer wall of the polished rod 85 through the rotating shaft, and the bottom end of the polished rod 85 swings back and forth along the connecting shaft 53;
fifth, the method comprises the following steps: when the first drive control structure 5 or the second drive control structure 6 is required to be disconnected from the driving gear 10 or the driven gear 11, the limiting plate 571 at the front end of the first driving control structure 5 or the second driving control structure 6 is only pressed down, the limiting plate 571 pushes the bottom end of the buckling plate 574 backwards through the rotating shaft, the buckling plate 574 rotates along the third fixed rotating shaft 575 at the middle part, so that the top end of the buckling plate 574 rotates forwards, the buckling connection between the buckling plate 574 and the sliding block 56 is disconnected, and the elastic potential energy is generated by the first spring 59, the movable bearing 54 is pushed rightwards, the movable bearing 54 drives the connecting shaft 53 to move rightwards, the connecting shaft 53 is disconnected with the driving gear 10 or the driven gear 11, a plurality of teaching aids are driven by one motor 9, and make this teaching aid can carry out the function of single mechanism and control, increase the convenience of teaching aid, and reduced the manufacturing cost that a plurality of motors 9 brought.
The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a mechanical design course combination teaching aid, includes bottom plate (1), its characterized in that still includes:
the first driving control structure (5) is used for connecting the linear reciprocating mechanism (7);
the second driving control structure (6) is used for connecting the reciprocating swing mechanism (8);
the control box (3) is used for controlling the motor (9);
wherein the first drive control structure (5) and the second drive control structure (6) are consistent in structure;
the front end of the control box (3) is provided with two switch keys.
2. The mechanical design course combined teaching aid of claim 1, wherein: the supporting legs (2) are fixed at the corners of the bottom end of the bottom plate (1), the control box (3) is installed on the left side of the top end of the bottom plate (1), the middle of the top end of the bottom plate (1) is locked with the fixed shell (4) through bolts, the left end of the fixed shell (4) is locked with the motor (9) through bolts, the front side and the rear side of the middle of the right side of the fixed shell (4) are respectively provided with a first driving control structure (5) and a second driving control structure (6), the top ends of the first driving control structure (5) and the second driving control structure (6) are respectively provided with a linear reciprocating mechanism (7) and a reciprocating swinging mechanism (8), an output shaft at the right end of the motor (9) penetrates through the left side wall of the fixed shell (4) and is welded with the circle center of the driving gear (10), the rear side of the driving gear (10) is meshed with the driven gear (11), tooth grooves (12) are formed in, the control box (3) is electrically connected with the motor (9).
3. The mechanical design course combined teaching aid of claim 2, wherein: the first drive control structure (5) consists of a shell (51), a pressing plate (52), a connecting shaft (53), a movable bearing (54), a movable gear (55), a sliding block (56), a clamping mechanism (57), a guide rod (58) and a first spring (59), wherein the pressing plate (52) is arranged on the right side of the shell (51), the left end of the pressing plate (52) is welded with the connecting shaft (53), the left end of the connecting shaft (53) transversely penetrates through the shell (51), the movable bearing (54) and the movable gear (55) in sequence to stretch out, the outer side of the connecting shaft (53) is welded with the movable bearing (54) and the circle center of the movable gear (55), the sliding blocks (56) are welded at the front end and the rear end of the movable bearing (54), the front end of the sliding block (56) is mutually clamped with the clamping mechanism (57), the guide rod (58) is provided with two sliding blocks (56) which transversely penetrate through the front side and the rear side of, the left side of the sliding block (56) is elastically connected with the shell (51) through a first spring (59), the first spring (59) is sleeved on the outer side of the guide rod (58), and the left end of the shell (51) is locked with the fixed shell (4) through a bolt.
4. The mechanical design course combined teaching aid of claim 2, wherein: the linear reciprocating mechanism (7) consists of a first fixed gear (71), a first fixed rotating shaft (72), a rotating disc (73), a first connecting rod (74) and a movable rod (75), a first fixed rotating shaft (72) is inserted at the circle center of the first fixed gear (71), the right end of the first fixed rotating shaft (72) is mutually locked with the circle center of the rotating disc (73) through a bolt, the right side edge of the rotary disc (73) is rotatably connected with the bottom end of the first connecting rod (74) through a rotating shaft, the top end of the first connecting rod (74) is rotationally connected with the movable rod (75) through a rotating shaft, the movable rod (75) slides up and down along the inner wall of the limit pipe (76), the bottom end of the limit pipe (76) is locked with the shell (51) of the first drive control structure (5) through a bolt, the left end of the first fixed rotating shaft (72) is mutually locked with the shell (51) of the first drive control structure (5) through a shaft seat.
5. The mechanical design course combined teaching aid of claim 2, wherein: reciprocating swing mechanism (8) comprise second fixed gear (81), the fixed pivot of second (82), second connecting rod (83), activity pipe (84) and polished rod (85), the second fixed gear (81) centre of a circle department pegs graft each other with the fixed pivot of second (82), the fixed pivot of second (82) right-hand member and second connecting rod (83) one end lock solid each other, and second connecting rod (83) other end right side rotates through pivot and activity pipe (84) and is connected, activity pipe (84) cup joint in polished rod (85) outside, and slides along polished rod (85) outer wall, polished rod (85) bottom cup joints in connecting axle (53) outside, the fixed pivot of second (82) left end passes through axle bed and the shell (51) lock solid each other of second drive control structure (6).
6. A mechanical design course teaching aid as claimed in claim 3, wherein: the buckling mechanism (57) is composed of a limiting plate (571), a straight rod (572), a second spring (573), a buckling plate (574) and a third fixed rotating shaft (575), the rear end of the limiting plate (571) penetrates through the front end wall of the shell (51) and extends into the shell (51) to be rotatably connected with the bottom end of the buckling plate (574) through the rotating shaft, the middle part of the buckling plate (574) rotates forwards and backwards along the third fixed rotating shaft (575), the rear end of the limiting plate (571) is elastically connected with the shell (51) through the second spring (573), the second spring (573) is sleeved on the outer side of the straight rod (572), and the top of the rear end of the buckling plate (574) is buckled with a sliding block (56) at the front end of the movable bearing (54).
7. A mechanical design course teaching aid as claimed in claim 3, wherein: the left end of the connecting shaft (53) is gradually reduced from right to left, and the outer side of the left end of the connecting shaft (53) is provided with a latch.
8. A mechanical design course teaching aid as claimed in claim 3, wherein: a bearing is embedded in the left side of the interior of the pressing plate (52), and the right end of the connecting shaft (53) is welded with the center of the circle of the bearing on the left side of the interior of the pressing plate (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020051396.3U CN211207783U (en) | 2020-01-10 | 2020-01-10 | Mechanical design course combination teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020051396.3U CN211207783U (en) | 2020-01-10 | 2020-01-10 | Mechanical design course combination teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211207783U true CN211207783U (en) | 2020-08-07 |
Family
ID=71853967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020051396.3U Expired - Fee Related CN211207783U (en) | 2020-01-10 | 2020-01-10 | Mechanical design course combination teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211207783U (en) |
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2020
- 2020-01-10 CN CN202020051396.3U patent/CN211207783U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20210110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |