CN106991891B - Hinge joint fixing demonstration instrument - Google Patents
Hinge joint fixing demonstration instrument Download PDFInfo
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- CN106991891B CN106991891B CN201710250979.1A CN201710250979A CN106991891B CN 106991891 B CN106991891 B CN 106991891B CN 201710250979 A CN201710250979 A CN 201710250979A CN 106991891 B CN106991891 B CN 106991891B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
Abstract
The invention discloses a hinge joint fixing demonstration instrument which comprises a rack, wherein the rack comprises two side plates and a bottom plate, through holes are formed in the two side plates, a first inserting hole and a second inserting hole are formed between the two through holes, inserting rods with the sizes matched with the through holes are inserted into the first inserting holes, limiting blocks are fixed at the bottom ends of the two inserting rods, a reset spring is arranged between the bottom surface of each limiting block and the bottom surfaces of the second inserting holes, the two inserting rods on a shaft rod are matched at the two through holes, the first through hole is formed in the shaft rod, and a circular tube is fixed on the first through hole; the two side plates are provided with circular arc through holes, the two side plates are provided with fixing holes, and the two side plates are provided with a first longitudinal through hole; the round pipe can be provided with a second longitudinal through hole, a first round hole formed in the round pipe is arranged below the second longitudinal through hole, the size positions of the second longitudinal through hole and the round hole are matched with the first longitudinal through hole, and the size positions of the second longitudinal through hole and the round hole are matched with the size positions of the two fixing holes; the frame is provided with an inserting rod. The invention can demonstrate various states of the hinge joint, is more intuitive and is worthy of popularization and application.
Description
Technical Field
The invention relates to a teaching aid, in particular to a hinge connection and fixation demonstration instrument.
Background
The hinge joint plus is a necessary content in the high school general technology, such as the hinge joint and various fixed combined structures, which are difficult to understand by students, and no teaching aid which can facilitate the students to clearly understand the hinge joint and various fixed form structures exists in the market.
Disclosure of Invention
The invention aims to solve the defects of the prior art, provides the hinge joint and fixation demonstration instrument which can enable students to visually know the hinge joint and various fixation structures, and meets the requirements of the students on visually knowing the hinge joint and various fixation structures.
The invention adopts the technical scheme for solving the technical problems that: the hinge connection and fixation demonstration instrument comprises a rack, wherein the rack comprises a pair of oppositely arranged side plates and a bottom plate which is positioned at the bottoms of the side plates and fixed with the side plates, the two side plates and the bottom plate are vertically arranged, through holes are formed in the two side plates, and the two through holes are coaxially arranged; a shaft lever with a section larger than that of the through hole is arranged between the two through holes, a first plug hole and a second plug hole are formed in two end faces of the shaft lever, the first plug hole is communicated with the second plug hole, the section of the second plug hole is larger than that of the first plug hole, plug rods with sizes matched with the through holes are plugged in the first plug holes, limiting blocks with sections larger than the first plug hole and smaller than or equal to the second plug hole are fixed at the inner ends of the two plug rods, a reset spring is arranged between the bottom surface of each limiting block and the bottom surface of the second plug hole, the two plug rods on the shaft lever are matched at the two through holes and can enable the shaft lever to rotate axially, the first through hole is formed in the radial direction of the shaft lever, and a circular tube is fixed on the first through hole; the two side plates are provided with circular arc-shaped through holes, the centers of the circular arc-shaped through holes coincide with the through holes, the two side plates are provided with fixing holes, the fixing holes are positioned on the outer sides of the bottom ends of the circular arc-shaped through holes, the two side plates are provided with longitudinal through holes I capable of moving longitudinally, and the longitudinal through holes I are positioned above the top ends of the circular arc-shaped through holes; a second longitudinal through hole is formed in the circular tube in the radial direction, a first round hole formed in the circular tube in the radial direction is formed below the second longitudinal through hole, when the circular tube is placed longitudinally, the size position of the second longitudinal through hole is matched with that of the first longitudinal through hole, the size position of the first round hole is matched with that of the circular arc-shaped through hole, and when the circular tube is placed transversely, the size position of the second longitudinal through hole is matched with that of the fixed hole; the rack is provided with an inserted link. The first plug hole, the second plug hole, the reset spring, the plug rod and the limiting block have the effects that the plug rod can be pressed and compressed, and then the plug rod is convenient to install at the through hole; the first inserting hole in the shaft lever is used for fixing the circular tube; the second longitudinal through hole and the first circular hole on the circular tube have the effects that when the circular tube is located at the vertical position, an inserting rod is inserted into the second longitudinal through hole through the first longitudinal through hole and is rotationally limited on the side plate; when the shaft lever needs to rotate, the inserted link positioned at one longitudinal through hole is pulled out, then the inserted link is inserted into the top end of the circular arc through hole and reaches the top end of the circular arc through hole at the other side again through the circular hole of the circular tube, then the shaft lever is rotated to the transverse position, then another inserted link passes through the fixing hole and reaches the fixing hole at the other side through the second longitudinal through hole of the circular tube, and thus the circular rod is transversely fixed, and the effects of hinge connection and rotary fixing of the longitudinal position and the transverse position of the circular tube are achieved, so that the effect of clear and visual demonstration can be shown to students (as shown in figure 5); the shaft lever, the insertion rod, the limiting block and the reset spring form a hinged joint of the shaft lever.
The circular tube is further perfected, a third longitudinal through hole is formed in each of the two side plates and is positioned below the top end of the circular arc-shaped through hole, a fourth longitudinal through hole is formed in the circular tube, and the size position of the fourth longitudinal through hole is matched with that of the third longitudinal through hole; the round pipe is spliced with a first extension pipe, the first extension pipe is provided with a fifth longitudinal through hole with the size matched with the fourth longitudinal through hole, the first extension pipe is provided with a pair of round holes II which are oppositely arranged up and down and are positioned above the fifth longitudinal through hole, the size position of the second upper round hole is matched with the second longitudinal through hole, and the size position of the second lower round hole is matched with the first round hole; the bottom plate is provided with a bottom hole matched with the first telescopic pipe, and the first telescopic pipe is matched with the bottom hole in size and position. The third longitudinal through hole, the fourth longitudinal through hole, the fifth longitudinal through hole and the bottom hole have the effects that when the first telescopic pipe is required to be inserted into the bottom hole, the inserting rod is required to pass through the third longitudinal through hole, then pass through the fourth longitudinal through hole of the round pipe, then pass through the fifth longitudinal through hole on the first telescopic pipe, and finally reach the third longitudinal through hole on the other side (no inserting rod is matched in other areas), so that the first telescopic pipe can longitudinally move up and down at the four positions of the longitudinal through hole of the round pipe, and the first telescopic pipe is inserted into the bottom hole, and the inserting rod plays a role in preventing the first telescopic pipe from rotating and guiding the first telescopic pipe to move downwards (as shown in figure 6), and further achieves the demonstration effect of hinge joint and bottom hole fixing.
The first telescopic pipe is inserted with a second telescopic pipe, the first telescopic pipe is provided with a limiting hole, the second telescopic pipe is provided with a mounting hole, and a spring positioning nail matched with the limiting hole is fixed on the mounting hole; the first telescopic rod and the second telescopic rod are both in non-circular arrangement in cross section, and the limiting hole is longitudinally aligned with the mounting hole. The first extension tube, the second extension tube and the spring positioning nail have the effects that the second extension tube can move up and down at the first extension tube and is limited and fixed through the spring positioning nail, so that the hinge connection and extension fixing effects can be demonstrated (as shown in figures 1, 2 and 3).
Further perfect, be fixed with the backup pad between the both sides board, be equipped with the hinge in the backup pad, the lateral part of hinge is equipped with the rotor plate, the rotor plate of hinge one end is fixed in the backup pad, the rotor plate of the hinge other end is fixed on the rotor plate bottom surface, the bottom surface outside of rotor plate is fixed with support one, curb plate the inner is fixed with support two, it is even board one to rotate to be connected with on the support one, it has even board two to rotate to be connected with on the support two, even board one is gone up to open has along the first passage hole that even board length direction set up, even board two is gone up to open has along the second passage hole that even board length direction set up, install the bolt on first passage hole and the second passage hole, threaded connection has and is used for even board one and even the nut that the board two cooperations are in the same place on the bolt. The supporting plate, the rotating plate and the hinge are used for demonstrating the hinge connection and supporting and fixing modes; the first connecting plate, the second connecting plate, the first channel hole, the second channel hole, the bolt and the nut have the functions that when the rotating plate rotates to an angle and needs to be fixed at the angle, the nut only needs to be screwed, and therefore the demonstration mode of hinge connection and support fixing is demonstrated (as shown in figures 1 and 2).
The hinge assembly is characterized in that a first supporting plate is fixed between the two side plates, a first hinge is arranged on the first supporting plate, a first rotating plate is arranged on the lateral portion of the first hinge, a first rotating sheet at one end of the first hinge is fixed on the first supporting plate, a first rotating sheet at the other end of the first hinge is fixed on the bottom surface of the first rotating plate, a chain is arranged between the first rotating plate and the side plates, one end of the chain is fixed on the side plates, and the other end of the chain is fixed on the first rotating plate. The first support plate, the first hinge and the first rotating plate are used for demonstrating hinge connection and fixation; the chain is used for demonstrating the situation that the rotating plate is limited by the chain after rotating to a specific angle, so that the hinge joint and the chain fixing mode (shown in fig. 7 and 8) are demonstrated.
The invention has the beneficial effects that: the invention has the advantages of ingenious and reasonable structural design, can demonstrate hinge connection and rotary fixation by utilizing the insertion rods inserted at different holes on the side plates, the bottom plate, the circular tube and the telescopic tubes, can demonstrate hinge connection and telescopic fixation at the positions by utilizing the first telescopic tube, the second telescopic tube and the spring positioning nails, can demonstrate hinge connection and telescopic fixation by utilizing the supporting plate, the hinge and the rotating plate, can demonstrate hinge connection and support fixation by utilizing the first supporting seat, the second supporting seat, the first connecting plate, the second connecting plate, the bolt and the nut, and can demonstrate a form of hinge connection and chain fixation by utilizing the first supporting plate, the first hinge, the first rotating plate and the chain, thereby being capable of more intuitively and vividly leading students to know the forms of hinge connection and various fixation and being worth popularizing and applying.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view from another side of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a state view of the extension tube of the present invention when it is detached from the circular tube;
FIG. 5 is a flow chart of the vertical and horizontal fixing of the circular tube on the shaft rod along the circular arc through hole;
FIG. 6 is a view showing the first telescopic tube fitted at the bottom hole for fixing the shaft rod;
FIG. 7 is a first view of the support plate being fixed by the chain;
FIG. 8 is a second view of the support plate at the other side when the first support plate is fixed by the chain.
Description of reference numerals: the device comprises a rack 1, side plates 1-1, through holes 1-1a, circular arc-shaped through holes 1-1b, longitudinal through holes three 1-1c, fixing holes 1-1d, longitudinal through holes one 1-1e, supports one 1-1f, a bottom plate 1-2, a shaft rod 2, insertion holes one 2-1, insertion holes two 2-2, through holes one 2-3, insertion rods 3, limiting blocks 4, reset springs 5, round pipes 6, longitudinal through holes two 6-1, round holes one 6-2, longitudinal through holes four 6-3, insertion rods 7, extension pipes one 8, longitudinal through holes five 8-1, round holes two 8-2, extension pipes two 9, mounting holes 9-1, spring positioning nails 10, support plates 11, hinges 12, rotating plates 13, supports one 13-1, connecting plates one 14, channel holes one 14-1, connecting plates two 15, channel holes two 15-1, bolts 16, nuts 17, support plates one 18, hinges one 19, rotating plates one 20 and chains 21.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
with reference to figures 1, 2, 3, 4, 5, 6: the hinge connection and fixation demonstration instrument comprises a rack 1, wherein the rack 1 comprises a pair of side plates 1-1 which are oppositely arranged and a bottom plate 1-2 which is positioned at the bottom of the side plate 1-1 and fixed with the side plates 1-1, the two side plates 1-1 and the bottom plate 1-2 are vertically arranged, through holes 1-1a are formed in the two side plates 1-1, and the two through holes 1-1a are coaxially arranged; a shaft lever 2 with a section larger than that of the through hole 1-1a is arranged between the two through holes 1-1a, both end surfaces of the shaft lever 2 are provided with a first plug-in hole 2-1 and a second plug-in hole 2-2, the first plug-in hole 2-1 is communicated with the second plug-in hole 2-2, the section of the second plug-in hole 2-2 is larger than that of the first plug-in hole 2-1, the first plug-in hole 2-1 is plugged with a plug-in rod 3 with a size matched with that of the through hole 1-1a, the inner ends of the two plug-in rods 3 are respectively fixed with a limiting block 4 with a section larger than that of the first plug-in hole 2-1 and smaller than that of the second plug-in hole 2-2, a return spring 5 is arranged between the bottom surface of the limiting block 4 and the bottom surface of the second plug-in hole 2-2, the two plug-in rods 3 on the shaft lever 2 are matched at the positions of the two through holes 1-1a and can enable the shaft lever 2 to axially rotate, the shaft lever 2 is provided with the through hole 2-3, the through hole 2-3 in the radial direction, and a circular tube 6 is fixed on the first through hole 2-3; the two side plates 1-1 are respectively provided with an arc-shaped through hole 1-1b, the center of the arc-shaped through hole 1-1b is superposed with the through hole 1-1a, the two side plates 1-1 are respectively provided with a fixing hole 1-1d, the fixing holes 1-1d are positioned at the outer side of the bottom end of the arc-shaped through hole 1-1b, the two side plates 1-1 are respectively provided with a longitudinal through hole 1-1e capable of moving longitudinally, and the longitudinal through holes 1-1e are positioned above the top ends of the arc-shaped through holes 1-1 b; a longitudinal through hole II 6-1 is formed in the circular tube 6 in the radial direction, a round hole I6-2 formed in the circular tube 6 in the radial direction is arranged below the longitudinal through hole II 6-1, when the circular tube 6 is placed longitudinally, the size position of the longitudinal through hole II 6-1 is matched with the longitudinal through hole I1-1 e, the size position of the round hole I6-2 is matched with the circular arc through hole 1-1b, and when the circular tube 6 is placed transversely, the size position of the longitudinal through hole II 6-1 is matched with the size position of the fixed hole 1-1 d; the frame 1 is provided with an inserting rod 7.
The two side plates 1-1 are respectively provided with a longitudinal through hole III 1-1c, the longitudinal through hole III 1-1c is positioned below the top end of the arc-shaped through hole 1-1b, the circular tube 6 is provided with a longitudinal through hole IV 6-3, and the size and position of the longitudinal through hole IV 6-3 are matched with the longitudinal through hole III 1-1 c; a first telescopic pipe 8 is inserted on the round pipe 6 in a splicing manner, a fifth longitudinal through hole 8-1 with the size matched with the fourth longitudinal through hole 6-3 is formed in the first telescopic pipe 8, a pair of circular holes 8-2 which are oppositely arranged up and down and are positioned above the fifth longitudinal through hole 8-1 is formed in the first telescopic pipe 8, the size position of the second upper circular hole 8-2 is matched with the second longitudinal through hole 6-1, and the size position of the second lower circular hole 8-2 is matched with the first circular hole 6-2; the bottom plate 1-2 is provided with a bottom hole 1-2a matched with the first telescopic pipe 8, and the first telescopic pipe 8 is matched with the bottom hole 1-2a in size and position.
A telescopic pipe II 9 is inserted on the telescopic pipe I8, a limiting hole 8-3 is formed in the telescopic pipe I8, a mounting hole 9-1 is formed in the telescopic pipe II 9, and a spring positioning nail 10 matched with the limiting hole 8-3 is fixed on the mounting hole 9-1; the cross sections of the first telescopic rod 8 and the second telescopic rod 9 are both non-circular, and the limiting hole 8-3 is longitudinally aligned with the mounting hole 9-1.
A supporting plate 11 is fixed between the two side plates 1-1, a hinge 12 is arranged on the supporting plate 11, a rotating plate 13 is arranged on the side portion of the hinge 12, a rotating sheet at one end of the hinge 12 is fixed on the supporting plate 11, a rotating sheet at the other end of the hinge 11 is fixed on the bottom surface of the rotating plate 13, a first support 13-1 is fixed on the outer side of the bottom surface of the rotating plate 13, a second support 1-1f is fixed at the inner end of the side plate 1-1, a first connecting plate 14 is connected to the first support 13-1 in a rotating mode, a second connecting plate 15 is connected to the second support 1-1f in a rotating mode, a first channel hole 14-1 arranged along the length direction of the first connecting plate 14 is formed in the first connecting plate 14, a second channel hole 15-1 arranged along the length direction of the second connecting plate 15 is formed in the second connecting plate 15, a bolt 16 is arranged on the first channel hole 14-1 and the second channel hole 15-1, and a nut 17 used for matching the first connecting plate 14 and the second connecting plate 15 is connected to form a thread in a threaded mode.
The working principle of the invention is as follows: when the demonstration of the fact that the circular tube 6 on the shaft lever 2 is located at the longitudinal fixing position (namely the form of hinge joint and longitudinal fixing) is needed, only one inserting rod 7 needs to pass through the longitudinal through hole I1-1 e, then pass through the longitudinal through hole II 6-1 of the circular tube 6 and simultaneously pass through the circular hole II 8-2 (the upper circular hole II 8-2) on the inserting tube I8 inserted in the circular tube 6, and finally reach the longitudinal through hole I1-1 e at the other side, so that the hinge joint and the longitudinal fixing can be demonstrated (as shown in figure 1); when the circular tube on the shaft lever 2 needs to be demonstrated to be located at a transverse fixed position (namely a hinge connection and rotation transverse fixing mode), the insertion rod 7 is pulled out from a first longitudinal through hole 1-1e, then the insertion rod 7 is inserted from the top end of a circular arc through hole 1-1b, then the insertion rod 7 passes through a first circular hole 6-2 of the circular tube 6 and simultaneously passes through a second circular hole 8-2 (a second lower circular hole 8-2) on the first insertion rod 8, reaches the circular arc through hole 1-1b at the other side, then rotates the circular tube 6 anticlockwise 90 degrees, reaches the bottom of the circular arc through hole 1-1b through the insertion rod 7, passes through a first fixing hole 1-1d, then passes through the first longitudinal through hole 1-1e and simultaneously passes through a second circular hole 8-2 (a second upper circular hole 8-2) on the first insertion rod 8, and finally reaches a fixing hole 1-1d at the other end, so that the circular tube 6 is demonstrated in a transverse fixing mode after being hinged to rotate anticlockwise 90 degrees (as shown in figure 5); the second inserting rod 9 is pulled on the first inserting rod 8, and the elastic positioning nail 10 is used for fixing, so that the demonstration shaft lever 2 is hinged with the first inserting rod 8, and the second inserting rod 9 is fixed in a telescopic mode (as shown in fig. 1, 2 and 3); when the form of hinge connection and bottom hole fixation needs to be demonstrated, the round pipe 6 is only required to be in a longitudinal vertical state, then the inserting rod 7 is inserted into the longitudinal through hole four 6-3 of the round pipe 6 from the longitudinal through hole three 1-1c and simultaneously penetrates through the longitudinal through hole five 8-1 on the inserting rod one 8, and then reaches the longitudinal through hole three 1-1c on the other side (the inserting rod 7 is not inserted in other areas), and as the longitudinal through hole five 8-1, the longitudinal through hole four 6-3 and the longitudinal through hole three 1-1c are all longitudinal guiding holes, the inserting rod one 8 can be guided (prevented from rotating) by the inserting rod 7, can move up and down at the round pipe 6 and can be matched with the bottom hole 1-2a on the bottom plate 1-2, so that the form of hinge connection and bottom hole fixation of the shaft rod is realized (as shown in fig. 6); when the hinge connection and fixation needs to be demonstrated, the supporting plate 11 only needs to be rotated for a certain angle, then the bolt 16 and the nut 17 are screwed, and the first connecting plate 14 and the second connecting plate 15 are tightly pressed together, so that the clockwise rotation and the anticlockwise rotation of the supporting plate 11 are limited (as shown in fig. 2).
Referring to figures 7 and 8: a first supporting plate 18 is fixed between the two side plates 1-1, a first hinge 19 is arranged on the first supporting plate 18, a first rotating plate 20 is arranged on the side portion of the first hinge 19, a rotating piece at one end of the first hinge 19 is fixed on the first supporting plate 18, a rotating piece at the other end of the first hinge 19 is fixed on the bottom surface of the first rotating plate 20, a chain 21 is arranged between the first rotating plate 20 and the side plates 1-1, one end of the chain 21 is fixed on the side plates 1-1, and the other end of the chain 21 is fixed on the first rotating plate 20.
When the hinge connection and chain fixing form needs to be demonstrated, the first support plate 18 can be limited and fixed clockwise only by rotating the first support plate 18 by a specific angle and then fixing one end of the chain 21 with the first support plate 18 and fixing the other end of the chain 21 with the side plate 1-1 by using the chain 21.
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (5)
1. The utility model provides a hinge connects fixed demonstration appearance, includes frame (1), frame (1) includes a pair of relative curb plate (1-1) that sets up and is located curb plate (1-1) bottom and bottom plate (1-2) together with fixed two curb plate (1-1), characterized by: the two side plates (1-1) and the bottom plate (1-2) are vertically arranged, through holes (1-1 a) are formed in the two side plates (1-1), and the two through holes (1-1 a) are coaxially arranged; a shaft lever (2) with a section larger than that of the through hole (1-1 a) is arranged between the two through holes (1-1 a), both end surfaces of the shaft lever (2) are provided with a first plug-in hole (2-1) and a second plug-in hole (2-2), the first plug-in hole (2-1) is communicated with the second plug-in hole (2-2), the section of the second plug-in hole (2-2) is larger than that of the first plug-in hole (2-1), the first plug-in holes (2-1) are plugged with plug-in rods (3) with the size matched with the through hole (1-1 a), the inner ends of the two plug-in rods (3) are fixedly provided with limit blocks (4) with sections larger than that of the first plug-in hole (2-1) and smaller than or equal to that of the second plug-in hole (2-2), a return spring (5) is arranged between the bottom surfaces of the limit blocks (4) and the second plug-in hole (2-2), the two plug-in rods (3) on the shaft lever (2) are matched at the two through holes (1-1 a) and can axially rotate, the shaft lever (2) is provided with a through hole (2-2), and a through hole (6) is radially provided with a through hole (2-2); the two side plates (1-1) are respectively provided with an arc-shaped through hole (1-1 b), the centers of the arc-shaped through holes (1-1 b) are overlapped with the through holes (1-1 a), the two side plates (1-1) are respectively provided with a fixing hole (1-1 d), the fixing holes (1-1 d) are positioned at the outer sides of the bottom ends of the arc-shaped through holes (1-1 b), the two side plates (1-1) are respectively provided with a longitudinal through hole (1-1 e) capable of longitudinally moving, and the longitudinal through holes (1-1 e) are positioned above the top ends of the arc-shaped through holes (1-1 b); a longitudinal through hole II (6-1) is formed in the circular tube (6) in the radial direction, a round hole I (6-2) formed in the circular tube (6) in the radial direction is arranged below the longitudinal through hole II (6-1), when the circular tube (6) is placed longitudinally, the size position of the longitudinal through hole II (6-1) is matched with the longitudinal through hole I (1-1 e), the size position of the round hole I (6-2) is matched with the arc-shaped through hole (1-1 b), and when the circular tube (6) is placed transversely, the size position of the longitudinal through hole II (6-1) is matched with the size position of the fixed hole (1-1 d); the rack (1) is provided with an inserted bar (7).
2. The hinged connection and fixation demonstration instrument according to claim 1, wherein: a third longitudinal through hole (1-1 c) is formed in each of the two side plates (1-1), the third longitudinal through hole (1-1 c) is located below the top end of the circular arc-shaped through hole (1-1 b), a fourth longitudinal through hole (6-3) is formed in the circular tube (6), and the size and the position of the fourth longitudinal through hole (6-3) are matched with those of the third longitudinal through hole (1-1 c); a first telescopic pipe (8) is inserted on the round pipe (6), a fifth longitudinal through hole (8-1) with the size matched with the fourth longitudinal through hole (6-3) is formed in the first telescopic pipe (8), a pair of circular holes (8-2) which are arranged oppositely up and down and are positioned above the fifth longitudinal through hole (8-1) is formed in the first telescopic pipe (8), the size position of the upper circular hole (8-2) is matched with the second longitudinal through hole (6-1), and the size position of the lower circular hole (8-2) is matched with the first circular hole (6-2); the bottom plate (1-2) is provided with a bottom hole (1-2 a) matched with the first extension tube (8), and the first extension tube (8) is matched with the bottom hole (1-2 a) in size and position.
3. The hinged connection and fixation demonstration instrument according to claim 2, wherein: a telescopic pipe II (9) is inserted on the telescopic pipe I (8), a limiting hole (8-3) is formed in the telescopic pipe I (8), an installation hole (9-1) is formed in the telescopic pipe II (9), and a spring positioning nail (10) matched with the limiting hole (8-3) is fixed on the installation hole (9-1); the cross sections of the first telescopic rod (8) and the second telescopic rod (9) are both non-circular, and the limiting hole (8-3) is longitudinally aligned with the mounting hole (9-1).
4. The hinged connection and fixation demonstration instrument according to any one of claims 1 to 3, wherein: two be fixed with backup pad (11) between curb plate (1-1), be equipped with hinge (12) on backup pad (11), the lateral part of hinge (12) is equipped with rotor plate (13), the rotor of hinge (12) one end is fixed on backup pad (11), the rotor of hinge (11) other end is fixed on rotor plate (13) bottom surface, the bottom surface outside of rotor plate (13) is fixed with support one (13-1), curb plate (1-1) inner is fixed with support two (1-1 f), it has even board one (14) to rotate on support one (13-1), it has even board two (15) to rotate on support two (1-1 f), it has along even board one (14) the length direction setting channel hole one (14-1) to open on even board one (14), it has along even board two (15) the length direction setting channel hole two (15-1) to open on even board two (15), channel hole one (14-1) and channel hole two (15-1) go up install bolt (16), even board (16) are used for even bolt (17) and screw thread connection with even board (17) together on even board (15).
5. The hinged connection and fixation demonstration instrument according to any one of claims 1 to 3, wherein: two be fixed with backup pad (18) between curb plate (1-1), be equipped with hinge (19) on backup pad (18), the lateral part of hinge (19) is equipped with rotor plate (20), the rotor plate of hinge (19) one end is fixed on backup pad (18), the rotor plate of the rotor plate (19) other end is fixed on rotor plate (20) bottom surface, chain (21) between rotor plate (20) and curb plate (1-1), the one end of chain (21) is fixed on curb plate (1-1), the other end of chain (21) is fixed on rotor plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250979.1A CN106991891B (en) | 2017-04-18 | 2017-04-18 | Hinge joint fixing demonstration instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250979.1A CN106991891B (en) | 2017-04-18 | 2017-04-18 | Hinge joint fixing demonstration instrument |
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| CN106991891A CN106991891A (en) | 2017-07-28 |
| CN106991891B true CN106991891B (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710250979.1A Active CN106991891B (en) | 2017-04-18 | 2017-04-18 | Hinge joint fixing demonstration instrument |
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| CN109085093B (en) * | 2018-06-19 | 2020-09-18 | 承德卓筑商砼有限公司 | Concrete veb consistometer |
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|---|---|---|---|---|
| WO2004096393A2 (en) * | 2003-05-02 | 2004-11-11 | John Michael Bayldon | Hinge assemblies and hinged objects |
| CN104299507A (en) * | 2014-10-23 | 2015-01-21 | 陈尚松 | Connection type demonstration instrument |
| CN205318710U (en) * | 2016-01-11 | 2016-06-15 | 黑龙江大学 | Teaching aid is demonstrated on inclined plane for physical teaching |
| CN106228896A (en) * | 2016-10-21 | 2016-12-14 | 夏正付 | A kind of universal machine mechanism demonstration teaching aid |
| CN106485999A (en) * | 2016-12-02 | 2017-03-08 | 陶仁杰 | Current techique common structure demonstration teaching aid |
| CN206741809U (en) * | 2017-04-18 | 2017-12-12 | 陈尚松 | Hinge-connection fixes demonstrator |
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2017
- 2017-04-18 CN CN201710250979.1A patent/CN106991891B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004096393A2 (en) * | 2003-05-02 | 2004-11-11 | John Michael Bayldon | Hinge assemblies and hinged objects |
| CN104299507A (en) * | 2014-10-23 | 2015-01-21 | 陈尚松 | Connection type demonstration instrument |
| CN205318710U (en) * | 2016-01-11 | 2016-06-15 | 黑龙江大学 | Teaching aid is demonstrated on inclined plane for physical teaching |
| CN106228896A (en) * | 2016-10-21 | 2016-12-14 | 夏正付 | A kind of universal machine mechanism demonstration teaching aid |
| CN106485999A (en) * | 2016-12-02 | 2017-03-08 | 陶仁杰 | Current techique common structure demonstration teaching aid |
| CN206741809U (en) * | 2017-04-18 | 2017-12-12 | 陈尚松 | Hinge-connection fixes demonstrator |
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| CN106991891A (en) | 2017-07-28 |
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