Power transmission display device utilizing gear rotation

Abstract

The utility model discloses a power transmission display device utilizing gear rotation, which comprises two racks, mounting shafts are movably mounted in the two racks, the mounting shafts rotate relative to the racks, movable rings are movably sleeved on the outer side surfaces of the mounting shafts at equal intervals, locking assemblies are mounted at the upper ends and the lower ends of the movable rings, and the locking assemblies are movably sleeved on the outer side surfaces of the mounting shafts. And second gears are fixedly mounted on the outer side surfaces of the movable rings in the middles of the outer side surfaces of the two mounting shafts. When the second gear on one side rotates, the second gear on the other side can be synchronously driven to rotate, when the first gear or the third gear on one side rotates, the third gear or the first gear on one side can be synchronously driven to rotate, and only one set of gears need to be kept in an engaged state during rotation. Power transmission and rotation speed change can be completed, power transmission among a plurality of gears is completed, power transmission among different gears is fully displayed, and science popularization is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear transmission, in particular to a power transmission display device utilizing the rotation of gears. Background Art

[0002] A power transmission demonstration device is a device or system used to display various power transmission technologies and solutions. This device is usually used in exhibitions, seminars or educational institutions to show the working principle, application scenarios and technological development of power transmission to the audience in an intuitive way. In science and technology museums and various popular science exhibitions, in order to show the public or students gear transmission, power transmission devices are usually used to simulate the transmission process of gears.

[0003] In the process of simulated gear transmission, a gear transmission mechanism composed of a power shaft and gears is generally used to realize the simulation process of gear transmission. However, the traditional gear transmission mechanism has only a simple socket relationship between the gears and the power shaft. Although this power transmission mechanism can realize the rapid switching of multiple gears, there is a risk of gears falling off and getting stuck during rotation, which can easily affect the use process. At the same time, it cannot realize power transmission between multiple gears, and its popular science value is poor. Utility Model Content

[0004] The purpose of the utility model is to provide a power transmission display device utilizing gear rotation to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power transmission display device utilizing gear rotation, comprising two frames, both of which have mounting shafts movably mounted inside the two frames, the mounting shafts rotate relative to the frames, the outer side surfaces of the mounting shafts are equidistantly and movably sleeved with movable rings, the upper and lower ends of the movable rings are mounted with locking assemblies, the outer side surfaces of the movable rings located in the middle of the outer side surfaces of the two mounting shafts are fixedly mounted with second gears, the two second gears are meshingly connected, the outer side surfaces of the movable rings located at the front end of the left mounting shaft and the outer side surfaces of the movable rings located at the rear end of the right mounting shaft are fixedly sleeved with the first gear, the outer side surfaces of the movable rings located at the rear end of the left mounting shaft and the outer side surfaces of the movable rings located at the front end of the right mounting shaft are fixedly sleeved with the third gear, and the first gear and the third gear are meshingly connected.

[0006] As a further preferred embodiment of the present technical solution, handlebars are installed at both the front and rear ends of the installation shaft, the installation shaft is movably connected to the frame through the handlebars, and the handlebars rotate relative to the frame.

[0007] As a further preferred embodiment of the present technical solution, a telescopic rod is installed at the front end of the turning handle located at the front side through a mounting block, and a handle is vertically installed at the bottom end of the telescopic rod.

[0008] When it is necessary to demonstrate gear transmission, the telescopic rod can be driven to rotate circumferentially by rotating the handle, and the handle can be driven to rotate synchronously. At this time, the mounting shaft rotates accordingly, and drives the corresponding mounting shaft to rotate synchronously. At this time, multiple gears located on the outer side of the mounting shaft rotate accordingly, and the torque can be changed by changing the length of the telescopic rod. At the same time, when the second gear on one side rotates, the second gear on the other side can be driven to rotate synchronously, and when the first gear or the third gear on one side rotates, the third gear or the first gear on one side can be driven to rotate synchronously. During rotation, only one set of gears needs to be kept in meshing state to complete the power transmission and the change of rotation speed, complete the power transmission between multiple gears, fully demonstrate the power transmission between different gears, and improve the popular science.

[0009] As a further preferred embodiment of the present technical solution, both upper and lower ends of the outer side surface of the mounting shaft are provided with sliding grooves located on the inner side surface of the movable ring, and positioning holes are provided at equal distances inside the sliding grooves.

[0010] As a further preferred embodiment of the present technical solution, the locking assembly includes a mounting frame, which is symmetrically mounted at the upper and lower ends of the outer side of the movable ring and is always located directly above the slide groove, and a positioning rod is movablely sleeved inside the mounting frame.

[0011] As a further preferred embodiment of the present technical solution, one end of the positioning rod away from the mounting axis passes through one side of the mounting frame and is fixedly connected to a limiting plate, and the outer side surface of the positioning rod is movably sleeved with a limiting spring, and the upper and lower ends of the limiting spring are respectively connected to one end of the limiting plate and one end of the mounting frame.

[0012] As a further preferred embodiment of the present technical solution, when the positioning rod is located directly above the positioning hole, the bottom end of the positioning rod passes through the inner side surface of the movable ring and is movably engaged with the positioning hole.

[0013] When it is necessary to adjust the position of the first gear and the second gear or the third gear accordingly, that is, to maintain engagement or disengagement, the limit plate can be pulled upwards to stretch the limit spring, which can simultaneously drive the positioning rod to disengage from the interior of the positioning hole. When the restriction between the positioning rod and the positioning hole is released, the movable ring can be pushed to move relative to the mounting shaft until the positioning rod corresponds to another positioning hole. At this time, the limit spring automatically resets to drive the positioning rod to insert into the interior of the positioning hole, completing the clamping process. At this time, the position of the movable ring can be limited to prevent the gear from disengaging during the transmission process, and to achieve precise positioning of the gear, reducing the risk of use.

[0014] The utility model provides a power transmission display device utilizing gear rotation, which has the following beneficial effects:

[0015] (1) The utility model can drive the telescopic rod to rotate circumferentially by rotating the handle, and synchronously drive the handle to rotate. At this time, the installation shaft rotates accordingly, and drives the corresponding installation shaft to rotate synchronously. At this time, multiple gears located on the outer side of the installation shaft rotate accordingly. At the same time, the torque can be changed by changing the length of the telescopic rod. At the same time, when the second gear on one side rotates, it can synchronously drive the second gear on the other side to rotate, and when the first gear or the third gear on one side rotates, it can synchronously drive the third gear or the first gear on one side to rotate. During rotation, only one set of gears needs to be kept in a meshing state to complete the power transmission and the change of rotation speed. The power transmission between multiple gears is completed, the power transmission between different gears is fully demonstrated, and the popularization of science is improved.

[0016] (2) The utility model pulls the limit plate upwards so that the limit spring is stretched, which can simultaneously drive the positioning rod to disengage from the interior of the positioning hole. When the restriction between the positioning rod and the positioning hole is released, the movable ring can be pushed to move relative to the installation shaft until the positioning rod corresponds to another positioning hole. At this time, the limit spring automatically resets and drives the positioning rod to insert into the interior of the positioning hole to complete the clamping process. At this time, the position of the movable ring can be limited to prevent the gear from disengaging during the transmission process, and to achieve accurate positioning of the gear, thereby reducing the risk of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the utility model in a single rack state;

[0019] Figure 3 It is an exploded schematic diagram of the frame and mounting shaft structure of the utility model;

[0020] Figure 4 It is an exploded schematic diagram of the structure of multiple gears and mounting shafts of the utility model;

[0021] Figure 5 It is a cross-sectional schematic diagram of the internal structure of the installation shaft of the utility model;

[0022] Figure 6 It is a separate cross-sectional schematic diagram of the locking assembly structure of the utility model.

[0023] In the figure: 1. frame; 2. mounting shaft; 3. telescopic rod; 4. turning handle; 5. slide groove; 6. positioning hole; 7. first gear; 8. second gear; 9. third gear; 10. movable ring; 11. locking assembly; 111. mounting frame; 112. positioning rod; 113. limit plate; 114. limit spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] The utility model provides a technical solution: Figures 1 to 6 As shown, in this embodiment, a power transmission display device utilizing gear rotation comprises two frames 1, both of which are movably mounted with mounting shafts 2 inside, the mounting shafts 2 rotate relative to the frames 1, the outer side surfaces of the mounting shafts 2 are movably sleeved with movable rings 10 at equal distances, the upper and lower ends of the movable rings 10 are both mounted with locking components 11, the outer side surfaces of the movable rings 10 located in the middle of the outer side surfaces of the two mounting shafts 2 are both fixedly mounted with second gears 8, the two second gears 8 are meshedly connected, the movable ring 10 located at the front end of the left mounting shaft 2 and the movable ring 10 located at the front end of the right mounting shaft 2 are both fixedly mounted with second gears 8, the two second gears 8 are meshedly connected, and the movable ring 10 located at the front end of the left mounting shaft 2 and the movable ring 10 located at the front end of the right mounting shaft 2 are both fixedly mounted with second gears 8. The outer side surface of the movable ring 10 at the rear end of the mounting shaft 2 is fixedly sleeved with the first gear 7, and the outer side surfaces of the movable ring 10 located at the rear end of the left mounting shaft 2 and the movable ring 10 located at the front end of the right mounting shaft 2 are fixedly sleeved with the third gear 9, the first gear 7 and the third gear 9 are meshingly connected, and the front and rear ends of the mounting shaft 2 are installed with a turning handle 4, the mounting shaft 2 is movably connected to the frame 1 through the turning handle 4, the turning handle 4 rotates relative to the frame 1, and the front end of the turning handle 4 located on the front side is installed with a telescopic rod 3 through a mounting block, and a handle is vertically installed at the bottom end of the telescopic rod 3.

[0026] When it is necessary to demonstrate gear transmission, the telescopic rod 3 can be driven to rotate circumferentially by rotating the handle, and the turning handle 4 can be driven to rotate synchronously. At this time, the mounting shaft 2 rotates accordingly, and drives the corresponding mounting shaft 2 to rotate synchronously. At this time, multiple gears located on the outer side of the mounting shaft 2 rotate accordingly. At the same time, the torque can be changed by changing the length of the telescopic rod 3. At the same time, when the second gear 8 on one side rotates, the second gear 8 on the other side can be driven to rotate synchronously, and when the first gear 7 or the third gear 9 on one side rotates, the third gear 9 or the first gear 7 on one side can be driven to rotate synchronously. During rotation, only one set of gears needs to be kept in meshing state, so as to complete the power transmission and the change of rotation speed, complete the power transmission between multiple gears, fully demonstrate the power transmission between different gears, and improve the popular science.

[0027] like Figure 4 and Figure 5 as well as Figure 6As shown, both upper and lower ends of the outer side surface of the mounting shaft 2 are provided with a slide groove 5 located on the inner side surface of the movable ring 10, and positioning holes 6 are equidistantly provided inside the slide groove 5. The locking assembly 11 includes a mounting frame 111, and the mounting frame 111 is symmetrically mounted at the upper and lower ends of the outer side surface of the movable ring 10 and is always located directly above the slide groove 5. A positioning rod 112 is movably sleeved inside the mounting frame 111, and the end of the positioning rod 112 away from the mounting shaft 2 passes through one side of the mounting frame 111 and is fixedly connected to a limiting plate 113. A limiting spring 114 is movably sleeved on the outer side surface of the positioning rod 112, and the upper and lower ends of the limiting spring 114 are respectively connected to one end of the limiting plate 113 and one end of the mounting frame 111. When the positioning rod 112 is located directly above the positioning hole 6, the bottom end of the positioning rod 112 passes through the inner side surface of the movable ring 10 and is movably engaged with the positioning hole 6.

[0028] When it is necessary to adjust the position of the first gear 7 and the second gear 8 or the third gear 9 accordingly, that is, to maintain engagement or disengagement, the limit plate 113 can be pulled upwards to stretch the limit spring 114, which can simultaneously drive the positioning rod 112 to disengage from the interior of the positioning hole 6. When the restriction between the positioning rod 112 and the positioning hole 6 is released, the movable ring 10 can be pushed to move relative to the mounting shaft 2 until the positioning rod 112 corresponds to another positioning hole 6. At this time, the limit spring 114 automatically resets to drive the positioning rod 112 to insert into the interior of the positioning hole 6, completing the clamping process. At this time, the position of the movable ring 10 can be limited to prevent the gear from disengaging during the transmission process, and to achieve precise positioning of the gear, thereby reducing the risk of use.

[0029] The utility model provides a power transmission display device utilizing gear rotation, and the specific working principle is as follows:

[0030] When it is necessary to demonstrate gear transmission, the telescopic rod 3 can be driven to rotate circumferentially by rotating the handle, and the turning handle 4 can be driven to rotate synchronously. At this time, the installation shaft 2 rotates accordingly, and drives the corresponding installation shaft 2 to rotate synchronously. At this time, multiple gears located on the outer side of the installation shaft 2 rotate accordingly. At the same time, the torque can be changed by changing the length of the telescopic rod 3. At the same time, when the second gear 8 on one side rotates, the second gear 8 on the other side can be driven to rotate synchronously, and when the first gear 7 or the third gear 9 on one side rotates, the third gear 9 or the first gear 7 on one side can be driven to rotate synchronously. During rotation, only one set of gears needs to be kept in a meshing state to complete the power transmission and When the rotation speed changes and the positions of the first gear 7 and the second gear 8 or the third gear 9 need to be adjusted accordingly, that is, to maintain engagement or disengagement, the limit plate 113 can be pulled upwards to stretch the limit spring 114, which can simultaneously drive the positioning rod 112 out of the interior of the positioning hole 6. When the restriction between the positioning rod 112 and the positioning hole 6 is released, the movable ring 10 can be pushed to move relative to the mounting shaft 2 until the positioning rod 112 corresponds to another positioning hole 6. At this time, the limit spring 114 automatically resets to drive the positioning rod 112 to be inserted into the interior of the positioning hole 6, completing the clamping process. At this time, the position of the movable ring 10 can be limited.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power transmission display device utilizing gear rotation, comprising two frames (1), characterized in that: The two frames (1) are each movably mounted with a mounting shaft (2), the mounting shaft (2) rotates relative to the frame (1), the outer side surface of the mounting shaft (2) is movably sleeved with a movable ring (10) at equal distances, the upper and lower ends of the movable ring (10) are each mounted with a locking assembly (11), the outer side surface of the movable ring (10) located in the middle of the outer side surfaces of the two mounting shafts (2) is fixedly mounted with a second gear (8), the two second gears (8) are meshingly connected, the outer side surfaces of the movable ring (10) located at the front end of the left mounting shaft (2) and the outer side surfaces of the movable ring (10) located at the rear end of the right mounting shaft (2) are both fixedly sleeved with a first gear (7), the outer side surfaces of the movable ring (10) located at the rear end of the left mounting shaft (2) and the outer side surfaces of the movable ring (10) located at the front end of the right mounting shaft (2) are both fixedly sleeved with a third gear (9), the first gear (7) and the third gear (9) are meshingly connected.

2. A power transmission display device utilizing gear rotation according to claim 1, characterized in that: A turning handle (4) is installed at both the front and rear ends of the installation shaft (2); the installation shaft (2) is movably connected to the frame (1) through the turning handle (4); and the turning handle (4) rotates relative to the frame (1).

3. A power transmission display device utilizing gear rotation according to claim 2, characterized in that: A telescopic rod (3) is mounted on the front end of the turning handle (4) located on the front side via a mounting block, and a handle is vertically mounted on the bottom end of the telescopic rod (3).

4. The power transmission display device using gear rotation according to claim 1, characterized in that: The upper and lower ends of the outer side surface of the installation shaft (2) are provided with sliding grooves (5) located on the inner side surface of the movable ring (10), and positioning holes (6) are provided at equal distances inside the sliding grooves (5).

5. The power transmission display device utilizing gear rotation according to claim 4, characterized in that: The locking assembly (11) comprises a mounting frame (111), the mounting frame (111) being symmetrically mounted at the upper and lower ends of the outer side surface of the movable ring (10) and always located directly above the slide groove (5), and a positioning rod (112) being movably sleeved inside the mounting frame (111).

6. The power transmission display device utilizing gear rotation according to claim 5, characterized in that: One end of the positioning rod (112) away from the mounting shaft (2) passes through one side of the mounting frame (111) and is fixedly connected to the limiting plate (113); the outer side surface of the positioning rod (112) is movably sleeved with a limiting spring (114); the upper and lower ends of the limiting spring (114) are respectively connected to one end of the limiting plate (113) and one end of the mounting frame (111).

7. The power transmission display device utilizing gear rotation according to claim 6, characterized in that: When the positioning rod (112) is located directly above the positioning hole (6), the bottom end of the positioning rod (112) penetrates the inner side surface of the movable ring (10) and is movably engaged with the positioning hole (6).

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