Intermittent connecting rod mechanism

Abstract

The utility model relates to the technical field of teaching, in particular to an intermittent connecting rod mechanism. Comprising a fixing plate, and a mounting plate is mounted on the fixing plate. Through the arrangement of the connecting rod assembly, when different moving angles of a pressing rod need to be displayed in the teaching process, positioning columns at the top and the bottom of one end of a second connecting rod are pressed to extrude a moving plate, so that a spring is compressed, the positioning columns are moved into adjusting grooves, the positioning columns are separated from positioning holes, and the pressing rod can be conveniently moved. The second connecting rod is detached, and then the positioning column is moved into other positioning holes, so that the angle of the pressing rod and the angle of the pull rod are adjusted, the angle of the pressing rod can be adjusted in the teaching process, intermittent connecting rod mechanisms of other models do not need to be replaced, and the teaching efficiency is improved. In this way, the pressing rod can move at different angles in the teaching process, and the equipment cost in the teaching process is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of teaching, and particularly relates to an intermittent connecting rod mechanism. Background Art

[0002] Teaching is a unique talent development activity consisting of teachers’ teaching and students’ learning. Through this activity, teachers purposefully, systematically and systematically guide students to actively and consciously learn and accelerate their mastery of the basic knowledge of information technology, train students to form basic skills and techniques of information technology, and develop students’ intelligence and abilities. However, in the process of teaching digital design and manufacturing, teachers sometimes need to conduct experimental teaching on site through training kits.

[0003] During the teaching use of the existing intermittent connecting rod mechanism, the angle of the pressure rod during the demonstration is fixed. Therefore, when the pressure rod needs to demonstrate the movement of different angles during the teaching process, it is necessary to replace the intermittent connecting rod mechanism of different models, thereby increasing the equipment cost during teaching. Utility Model Content

[0004] The purpose of the utility model is to provide an intermittent connecting rod mechanism. By setting a connecting rod assembly, the second connecting rod and the pull rod can be installed and disassembled, so as to adjust the angles of the pressure rod and the pull rod, so that the pull rod can show movement at different angles during the teaching process, thereby eliminating the need to replace different types of intermittent connecting rod mechanisms, reducing the cost of equipment during teaching, and solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intermittent connecting rod mechanism, comprising a fixing plate, a mounting plate is mounted on the fixing plate, a protection box is mounted on the bottom of the mounting plate by bolts, a connecting rod assembly is mounted on the top of the mounting plate, a driving assembly and a transmission assembly are mounted on the bottom of the mounting plate, and the driving assembly and the transmission assembly are both located in the protection box;

[0006] The connecting rod assembly includes a flywheel, which is fixedly mounted on the transmission assembly, a fixed rod is fixedly mounted on the flywheel, a first connecting rod is rotatably connected to the fixed rod, a pull rod is hinged on one end of the first connecting rod away from the fixed rod, the pull rod is hinged on the second connecting rod, and a pressure rod is hinged on one end of the second connecting rod away from the pull rod, a movable groove is provided on the pull rod, and multiple groups of positioning holes are provided on the top and bottom of the pull rod, the multiple groups of positioning holes are equidistantly arranged, and the multiple groups of positioning holes are connected to the movable grooves, and the top and bottom of the second connecting rod near one end of the pull rod are provided with adjustment grooves, springs are installed in the two groups of adjustment grooves, and a movable plate is installed at one end of the two groups of springs, and the two groups of movable plates are respectively slidably connected in the two groups of adjustment grooves, and a positioning column is installed at one end of the two groups of movable plates away from the spring, and the positioning column is inserted into the positioning hole.

[0007] Furthermore, the connecting rod assembly also includes a connecting block, which is fixedly mounted on the fixing plate and is located above the mounting plate.

[0008] Furthermore, one end of the pull rod away from the first connecting rod is hinged on the connecting block, and one end of the pressure rod passes through the movable groove and is hinged on the connecting block.

[0009] Furthermore, the driving assembly includes a first rotating rod, one end of which is rotatably connected to the bottom of the mounting plate, the other end of which passes through the protective box, and a hand wheel is installed on the other end of the first rotating rod. A dial is fixedly installed on the first rotating rod, and a cylinder is installed at the bottom of the dial.

[0010] Furthermore, the transmission assembly includes a second rotating rod, which is rotatably connected to the bottom of the mounting plate, and a first gear and a groove wheel are installed on the second rotating rod, and the groove wheel and the cylinder are used in combination.

[0011] Furthermore, the transmission assembly also includes a third rotating rod, one end of which is rotatably connected in the protective box, the other end of which passes through the mounting plate, and the other end of which is mounted on the dial.

[0012] Furthermore, a second gear is installed on the third rotating rod, and the second gear is meshed with the first gear.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a connecting rod assembly. When it is necessary to demonstrate different angles of movement of the pressure rod during teaching, the positioning posts at the top and bottom of one end of the second connecting rod are pressed to squeeze the movable plate, thereby compressing the spring and moving the positioning post into the adjustment groove, separating the positioning post from the positioning hole, thereby releasing the limit on the second connecting rod. The second connecting rod is disassembled, and then the positioning post is moved into other positioning holes to adjust the angles of the pressure rod and the pull rod. The angle of the pressure rod can be adjusted during teaching, so that the pressure rod can demonstrate movement at different angles during teaching without replacing other types of intermittent connecting rod mechanisms, thereby reducing the equipment costs during teaching.

[0015] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure according to an embodiment of the utility model is shown;

[0018] Figure 2 A schematic diagram of the shaft side structure according to an embodiment of the utility model is shown;

[0019] Figure 3 A schematic diagram of the internal structure according to an embodiment of the utility model is shown;

[0020] Figure 4 A partial structural schematic diagram of a second connecting rod according to an embodiment of the utility model is shown.

[0021] In the figure: 110, fixed plate; 120, mounting plate; 130, protective box; 210, first rotating rod; 220, dial; 230, cylinder; 240, hand wheel; 310, second rotating rod; 320, groove wheel; 330, first gear; 340, third rotating rod; 350, second gear; 410, flywheel; 420, fixed rod; 430, first connecting rod; 440, pull rod; 441, movable groove; 442, positioning hole; 450, second connecting rod; 451, adjustment groove; 452, spring; 453, movable plate; 454, positioning column; 460, pressure rod; 470, connecting block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] The embodiment of the utility model provides an intermittent connecting rod mechanism, which comprises a fixing plate 110, a mounting plate 120 is mounted on the fixing plate 110, a protection box 130 is mounted on the bottom of the mounting plate 120 by bolts, a connecting rod assembly is mounted on the top of the mounting plate 120, a driving assembly and a transmission assembly are mounted on the bottom of the mounting plate 120, and the driving assembly and the transmission assembly are both located in the protection box 130;

[0025] The driving assembly and the transmission assembly are used to drive the connecting rod assembly to move, so that the intermittent connecting rod mechanism can be displayed.

[0026] The connecting rod assembly includes a flywheel 410, which is fixedly mounted on the transmission assembly, a fixed rod 420 is fixedly mounted on the flywheel 410, a first connecting rod 430 is rotatably connected to the fixed rod 420, a pull rod 440 is hingedly connected to the end of the first connecting rod 430 away from the fixed rod 420, a second connecting rod 450 is hingedly connected to the pull rod 440, a pressure rod 460 is hingedly connected to the end of the second connecting rod 450 away from the pull rod 440, a movable groove 441 is provided on the pull rod 440, and a plurality of positioning holes 442 are provided on the top and bottom of the pull rod 440. , multiple groups of positioning holes 442 are arranged at equal intervals, and multiple groups of positioning holes 442 are connected to the movable groove 441, and the top and bottom of the second connecting rod 450 close to the pull rod 440 are provided with adjustment grooves 451, and springs 452 are installed in the two groups of adjustment grooves 451, and one end of the two groups of springs 452 is installed with a movable plate 453, and the two groups of movable plates 453 are respectively slidably connected in the two groups of adjustment grooves 451, and the ends of the two groups of movable plates 453 away from the springs 452 are installed with positioning columns 454, and the positioning columns 454 are inserted into the positioning holes 442.

[0027] When the position of the second connecting rod 450 needs to be adjusted, the positioning columns 454 at the top and bottom of one end of the second connecting rod 450 are pressed so that the positioning columns 454 squeeze the movable plate 453, thereby compressing the spring 452 and moving the positioning columns 454 into the adjustment slot 451, separating the positioning columns 454 and the positioning holes 442, thereby releasing the limit on the second connecting rod 450, disassembling the second connecting rod 450, and then moving the positioning columns 454 into other positioning holes 442, thereby adjusting the angles of the pressure rod 460 and the pull rod 440, so that the angle of the pressure rod 460 can be adjusted during the teaching process, so that the pressure rod 460 can show movement at different angles during the teaching process, without the need to replace other models of equipment. The positioning column 454 is used to limit the second connecting rod 450 and fix the second connecting rod 450 on the pull rod 440. At the same time, in conjunction with the use of the spring 452 and the movable plate 453, it is convenient to install and disassemble the second connecting rod 450 and change the moving angle of the pressure rod 460.

[0028] The connecting rod assembly further includes a connecting block 470, which is fixedly mounted on the fixing plate 110 and is located above the mounting plate 120. One end of the pull rod 440 away from the first connecting rod 430 is hinged on the connecting block 470, and one end of the pressure rod 460 passes through the moving slot 441 and is hinged on the connecting block 470.

[0029] The driving assembly includes a first rotating rod 210, one end of which is rotatably connected to the bottom of the mounting plate 120, the other end of which passes through the protective box 130, and a hand wheel 240 is installed at the other end of the first rotating rod 210. A dial 220 is fixedly installed on the first rotating rod 210, and a cylinder 230 is installed at the bottom of the dial 220.

[0030] The transmission assembly includes a second rotating rod 310 , which is rotatably connected to the bottom of the mounting plate 120 . A first gear 330 and a groove wheel 320 are mounted on the second rotating rod 310 , and the groove wheel 320 is used in conjunction with the cylinder 230 .

[0031] The groove wheel 320 is provided so that the dial 220 can drive the cylinder 230 to move during the rotation, so that the cylinder 230 moves to the radial groove of the groove wheel 320, thereby pushing the groove wheel 320 to move.

[0032] The transmission assembly further includes a third rotating rod 340, one end of which is rotatably connected to the protective box 130, the other end of which passes through the mounting plate 120, and the other end of which is mounted on the dial 220. A second gear 350 is mounted on the third rotating rod 340, and the second gear 350 is meshed with the first gear 330.

[0033] When in use, by rotating the hand wheel 240, the hand wheel 240 drives the first rotating rod 210 to rotate, so that the first rotating rod 210 drives the dial 220 to rotate, and the dial 220 drives the cylinder 230 to rotate, so that the cylinder 230 slides into the radial groove on the groove wheel 320, thereby driving the groove wheel 320 to rotate, so that the groove wheel 320 drives the second rotating rod 310 to rotate, and the second rotating rod 310 drives the first gear 330 to rotate, and the first gear 330 and the second gear 330 rotate. 50, the third rotating rod 340 is driven to rotate, so that the third rotating rod 340 drives the flywheel 410 to rotate, and the rotation of the flywheel 410 drives the first connecting rod 430 to swing, the first connecting rod 430 drives the pull rod 440 to swing back and forth, and the pull rod 440 pulls the second connecting rod 450 to move; the second connecting rod 450 connects the pressure rod 460 and the pull rod 440, and under the back and forth swing of the pull rod 440, the pressure rod 460 swings around the connecting block 470 at a fixed angle.

[0034] For example, when the positioning column 454 is in the positioning hole 442 near the connecting block 470, the swing angle of the pressing rod 460 is the smallest. When the positioning column 454 is in the positioning hole 442 near the first connecting rod 430, the swing angle of the pressing rod 460 is the largest, thereby achieving the adjustment of the swing angle of the pressing rod 460.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intermittent connecting rod mechanism, characterized in that: It comprises a fixing plate (110), a mounting plate (120) is mounted on the fixing plate (110), a protection box (130) is mounted on the bottom of the mounting plate (120) via bolts, a connecting rod assembly is mounted on the top of the mounting plate (120), a driving assembly and a transmission assembly are mounted on the bottom of the mounting plate (120), and the driving assembly and the transmission assembly are both located in the protection box (130); The connecting rod assembly comprises a flywheel (410), wherein the flywheel (410) is fixedly mounted on the transmission assembly, a fixed rod (420) is fixedly mounted on the flywheel (410), a first connecting rod (430) is rotatably connected to the fixed rod (420), a pull rod (440) is hingedly connected to one end of the first connecting rod (430) away from the fixed rod (420), a second connecting rod (450) is hingedly connected to one end of the pull rod (440), a pressure rod (460) is hingedly connected to one end of the second connecting rod (450) away from the pull rod (440), a movable groove (441) is provided on the pull rod (440), and a plurality of positioning holes (441) are provided on the top and bottom of the pull rod (440). 2), the plurality of groups of positioning holes (442) are equidistantly arranged, and the plurality of groups of positioning holes (442) are all connected to the movable groove (441), the second connecting rod (450) is provided with an adjustment groove (451) at the top and bottom of one end close to the pull rod 440, springs (452) are installed in the two groups of adjustment grooves (451), one end of the two groups of springs (452) is installed with a movable plate (453), the two groups of movable plates (453) are respectively slidably connected in the two groups of adjustment grooves (451), and the ends of the two groups of movable plates (453) away from the springs (452) are installed with positioning columns (454), and the positioning columns (454) are inserted into the positioning holes (442).

2. An intermittent connecting rod mechanism according to claim 1, characterized in that: The connecting rod assembly further comprises a connecting block (470), wherein the connecting block (470) is fixedly mounted on the fixing plate (110), and the connecting block (470) is located above the mounting plate (120).

3. An intermittent connecting rod mechanism according to claim 2, characterized in that: One end of the pull rod (440) away from the first connecting rod (430) is hinged on the connecting block (470), and one end of the pressure rod (460) passes through the moving groove (441) and is hinged on the connecting block (470).

4. An intermittent connecting rod mechanism according to claim 3, characterized in that: The driving assembly comprises a first rotating rod (210), one end of the first rotating rod (210) is rotatably connected to the bottom of the mounting plate (120), the other end of the first rotating rod (210) passes through the protective box (130), a hand wheel (240) is installed at the other end of the first rotating rod (210), a dial (220) is fixedly installed on the first rotating rod (210), and a cylinder (230) is installed at the bottom of the dial (220).

5. An intermittent connecting rod mechanism according to claim 4, characterized in that: The transmission assembly comprises a second rotating rod (310), the second rotating rod (310) is rotatably connected to the bottom of the mounting plate (120), a first gear (330) and a groove wheel (320) are mounted on the second rotating rod (310), and the groove wheel (320) and the cylinder (230) are used in conjunction with each other.

6. An intermittent connecting rod mechanism according to claim 5, characterized in that: The transmission assembly also includes a third rotating rod (340), one end of which is rotatably connected to the protective box (130), the other end of which passes through the mounting plate (120), and the other end of which is mounted on the dial (220).

7. An intermittent connecting rod mechanism according to claim 6, characterized in that: The third rotating rod (340) is mounted with a second gear (350), and the second gear (350) is meshed with the first gear (330).

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