Gear shifting device and observation instrument

Abstract

The embodiment of the utility model discloses a gear shifting device and an observation instrument, relates to the technical field of multi-gear adjustment of observation instruments, and can effectively save the number of gear grooves when the number of gears is required to be large. The device comprises a first disc body and a second disc body, more than two gear grooves are formed in one end of the first disc body along the circumferential direction; more than two rolling bodies are arranged at the end, facing the gear groove, of the second disc body in the circumferential direction, an elastic piece is arranged on the side, back to the gear groove, of each rolling body, the first disc body and the second disc body rotate relatively, and the rolling bodies can be embedded into the gear groove or separated from the gear groove; when the first disc body and the second disc body rotate relatively to a first gear, the first rolling body is embedded into one gear groove, and the second rolling body is located between the two adjacent gear grooves; when the first disc body and the second disc body rotate relatively to a second gear, the first rolling body is located between the two adjacent gear grooves, and the second rolling body is embedded into one gear groove. The gear adjusting method is suitable for gear adjusting scenes of the observation instrument.

Description

Technical Field

[0001] The present application relates to the technical field of multi-gear adjustment of an observation instrument, and in particular to a gear shifting device and an observation instrument. Background Art

[0002] The number of gears in traditional multi-gear adjustment devices is often limited to the number of gear slots. For example, if you want to add more gears to a rotating shaft with gears within one rotation, you can only do so by increasing the number of gear slots. If the required number of gears is large, you will need to add more gear slots, which will affect the structural design and processing of the components. Utility Model Content

[0003] In view of this, the present application provides a gear shifting device and an observation instrument, which can effectively save the number of gear slots when a large number of gears is required.

[0004] In a first aspect, an embodiment of the present application provides a gear shifting device, comprising: a first disk body, one end of the first disk body is provided with more than two gear slots along the circumferential direction; a second disk body, the second disk body is provided with more than two rolling bodies along the circumferential direction at one end facing the gear slot, and each of the rolling bodies is provided with an elastic member on the side facing away from the gear slot, the first disk body and the second disk body rotate relative to each other, and the rolling bodies can be embedded in the gear slot or detached from the gear slot; wherein the two or more rolling bodies include at least a first group of rolling bodies, the first group of rolling bodies includes a first rolling body and a second rolling body, the first disk body and the second disk body rotate relative to each other to a first gear position, the first rolling body is embedded in one of the gear slots, and the second rolling body is located between two adjacent gear slots; the first disk body and the second disk body rotate relative to each other to a second gear position, the first rolling body is located between two adjacent gear slots, and the second rolling body is embedded in one of the gear slots.

[0005] In a specific embodiment, the more than two rolling bodies include at least a second group of rolling bodies, the second group of rolling bodies includes a third rolling body and a fourth rolling body, the first disk body and the second disk body rotate relative to each other to the first gear position, the third rolling body is embedded in one of the gear slots, and the fourth rolling body is located between two adjacent gear slots; the first disk body and the second disk body rotate relative to each other to the second gear position, the third rolling body is located between two adjacent gear slots, and the fourth rolling body is embedded in one of the gear slots.

[0006] In a specific embodiment, the second disc body is provided with more than two limiting holes along the circumferential direction at one end facing the shift slot, and in each of the limiting holes, the elastic member and the rolling body are sequentially provided in the direction of the first disc body.

[0007] In a specific embodiment, a first groove is provided at one end of the first disk body, the two or more gear grooves are circumferentially arranged at the bottom of the first groove, and one end of the second disk body facing the gear groove is at least partially located in the first groove.

[0008] In a specific embodiment, it also includes a rotating shaft, and the first disk body and the second disk body are sleeved on the rotating shaft.

[0009] In a specific embodiment, the first disk body includes a first gear plate and a first rotating plate, the first rotating plate is sleeved on the rotating shaft, the first gear plate is connected to the first rotating plate, and the two or more gear slots are circumferentially arranged at one end of the first gear plate.

[0010] In a specific embodiment, a locking member is provided at one end of the second disk body away from the gear slot, and a damping member is provided between the second disk body and the locking member; the first disk body is circumferentially limited to the rotating shaft, and the second disk body is rotatably connected to the rotating shaft.

[0011] In a specific embodiment, the second disk body includes a second gear plate and a second rotating disk. The second gear plate is provided with more than two limit holes along the circumferential direction at one end facing the gear slot. In each of the limit holes, the elastic member and the rolling body are sequentially provided in the direction of the first disk body. The second rotating disk is rotatably connected to the rotating shaft, the second gear plate is connected to the second rotating disk, and the damping member is arranged between the second rotating disk and the locking member.

[0012] In a specific embodiment, the second disk body also includes a pressure plate, and a second groove is provided at one end of the second gear disk facing away from the gear slot, and the end of the pressure plate facing the second gear disk is at least partially located in the second groove, and the pressure plate is connected to the second gear disk; the limiting hole is a through hole, and the pressure plate at least partially blocks the limiting hole.

[0013] In a specific embodiment, the first rolling body and the second rolling body have a first preset angle β along the circumference of the second disk, β=(180 / n)×m, in degrees, n is the number of the gear slots, m is a positive odd number, and 1≤m≤2n-1.

[0014] In a specific embodiment, the two or more rolling bodies include at least one auxiliary rolling body, and the auxiliary rolling body has a second preset angle γ with the first rolling body along the circumference of the second disk body, where γ=(180 / n)×i, in degrees, n is the number of the gear slots, i is a natural number, and 1≤i≤2n-1.

[0015] In a second aspect, an embodiment of the present application further provides a gear shifting device, comprising: a first disk body, one end of which is provided with more than two gear slots along the circumferential direction; a second disk body, the second disk body is provided with more than two rolling bodies along the circumferential direction at one end facing the gear slot, and each of the rolling bodies is provided with an elastic member on the side facing away from the gear slot, the first disk body and the second disk body rotate relative to each other, and the rolling bodies can be embedded in the gear slot or detached from the gear slot; wherein, the two or more rolling bodies include at least a first group of rolling bodies, the first group of rolling bodies includes p rolling bodies, p≥3, the first disk body and the second disk body rotate relative to each other to the wth gear position, w is a natural number, and w=1, 2,…, p, one of the rolling bodies of the first group of rolling bodies is embedded in one of the gear slots, and the other rolling bodies of the first group of rolling bodies are located between two adjacent gear slots.

[0016] In a specific embodiment, the more than two rolling bodies include at least a second group of rolling bodies, the second group of rolling bodies includes p rolling bodies, p≥3, the first disk body and the second disk body rotate relative to each other to the wth gear position, one of the rolling bodies of the second group of rolling bodies is embedded in one of the gear slots, and the other rolling bodies of the second group of rolling bodies are located between two adjacent gear slots.

[0017] In a specific embodiment, when any rolling element of the first group of rolling elements is embedded in one of the gear slots, the p rolling elements of the first group of rolling elements have a third preset angle θ with the next adjacent gear slot along the preset rotation direction. i , where θ i = (360 / n) × i / p, the unit is degree, n is the number of the gear slots, i is a natural number, and i=1, 2, ..., p.

[0018] In a specific embodiment, the two or more rolling bodies include at least one auxiliary rolling body. When any rolling body of the first group of rolling bodies is embedded in one of the gear slots, the auxiliary rolling body has a fourth preset angle φ with the next adjacent gear slot along the preset rotation direction, φ=(360 / n)×i / p, the unit is degree, n is the number of the gear slots, i is a natural number, and 1≤i≤p.

[0019] In a third aspect, an embodiment of the present application further provides an observation instrument, comprising: a lens assembly, a display screen; and a shifting device, wherein the shifting device is any one of the shifting devices described in the embodiments of the present application, wherein one of the first disk body and the second disk body is connected to the lens assembly, and the other is connected to the display screen.

[0020] The shifting device and observation instrument provided in the embodiments of the present application include a first disk and a second disk; one end of the first disk is provided with more than two gear slots along the circumferential direction; the second disk is provided with more than two rolling bodies along the circumferential direction at one end facing the gear slot, and each rolling body is provided with an elastic member on the side facing away from the gear slot, the first disk and the second disk rotate relative to each other, and the rolling bodies can be embedded in the gear slot or detached from the gear slot; wherein the two or more rolling bodies include at least a first group of rolling bodies, the first group of rolling bodies includes a first rolling body and a second rolling body, the first disk and the second disk rotate relative to each other to the first gear position, the first rolling body is embedded in one of the gear slots, and the second rolling body is located between two adjacent gear slots; the first disk and the second disk rotate relative to each other to the second gear position, the first rolling body is located between two adjacent gear slots, and the second rolling body is embedded in one of the gear slots. In this way, based on the original number of gear slots, the rolling body can expand its residence position in adjacent gear slots to increase the gear positions of the shifting device. When a large number of gears is required, the device can effectively save the number of gear slots and reduce processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application 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 only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A cross-sectional view of a gear shifting device provided in an embodiment of the present application;

[0023] Figure 2 An exploded schematic diagram of a gear shifting device provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the distribution of a first group of rolling elements of a gear shift device provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the distribution of a first group of rolling elements and a second group of rolling elements of a gear shift device provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of an auxiliary rolling element of a gear shifting device provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the current gear position of a gear shift device with three rolling bodies provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of a first gear position of a gear shifting device with three rolling bodies provided in an embodiment of the present application;

[0029] Figure 8 A schematic diagram of a second gear position of a gear shift device with three rolling bodies provided in an embodiment of the present application;

[0030] Fig. 9 A schematic diagram of the third gear position of the gear shifting device with three rolling bodies provided in an embodiment of the present application.

[0031] Description of main reference numerals:

[0032] 100-shift device; 10-first plate; 11-shift slot; 12-first groove; 13-first gear plate; 14-first rotating disk; 20-second plate; 21-rolling body; 2111-first rolling body; 2112-second rolling body; 2121-third rolling body; 2122-fourth rolling body; 213-auxiliary rolling body; 2141-first embedded rolling body; 2142-second embedded rolling body; 2143-third embedded rolling body; 22-elastic member; 23-limiting hole; 24-second gear plate; 241-second groove; 25-second rotating disk; 26-pressure plate; 30-rotating shaft; 31-locking member; 32-damping member. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0035] The number of gears in a traditional multi-gear adjustment device is often limited to the number of gear slots. If more gears are required, more gear slots need to be added, which affects the structural design and processing of the components. To solve this problem, first, Figure 1As shown, the embodiment of the present application provides a shifting device 100, which may include a first plate body 10 and a second plate body 20; one end of the first plate body 10 is provided with two or more gear slots 11 along the circumferential direction; the second plate body 20 is provided with two or more rolling bodies 21 along the circumferential direction at one end facing the gear slot 11, and each rolling body 21 is provided with an elastic member 22 on the side facing away from the gear slot 11, the first plate body 10 and the second plate body 20 rotate relative to each other, and the rolling body 21 can be embedded in the gear slot 11 or from the gear slot 11 There are many ways to arrange the rolling body 21 in the circumferential direction of the second disk body 20. For example, a hole can be opened at the end of the second disk body 20 to embed the rolling body 21, or a column can be protruded at the end of the second disk body 20 to penetrate one end of the rolling body 21, or a retaining frame can be set at the end of the second disk body 20 to wrap the rolling body 21, and then an elastic member 22 can be set between the rolling body 21 and the second disk body 20, so that the rolling body 21 is limited in the radial direction of the second disk body 20 and can move in the axial direction of the second disk body 20.

[0036] The number of the gear slots 11 is configured according to the number of gear settings of the gear shift device 100. For example, a gear shift device 100 with four gears can have four gear slots 11 on the first plate 10. In this way, during the relative rotation of the first plate 10 and the second plate 20, each rolling body 21 on the second plate 20 can reside in and pass through the four gear slots 11 in sequence, thereby forming four gears, so that a preset relative position is formed between the components connected to the first plate 10 and the second plate 20, or an electrical signal is generated according to the change in the relative angle between the first plate 10 and the second plate 20. The rolling body 21 can be a sphere or a cylinder, such as Figure 2 As shown, when the rolling body 21 is a sphere, the structural design of the component is simpler and more economical. The elastic member 22, such as a cylindrical spring, can be arranged between the rolling body 21 and the gear slot 11 to exert an elastic force on the rolling body 21. When the first plate 10 and the second plate 20 start to rotate relative to each other and switch from the current gear to the next gear, it is necessary to overcome the elastic force of the elastic member 22 on the rolling body 21 so that the rolling body 21 can be disengaged from the gear slot 11 corresponding to the current gear. When the first plate 10 and the second plate 20 rotate relative to each other to the next gear, under the elastic force of the elastic member 22 on the rolling body 21, the rolling body 21 will be embedded in the gear slot 11 corresponding to the next gear. The depth of the gear slot 11 can be less than 1 / 3 of the diameter of the sphere, so that the rolling body 21 can be more smoothly embedded in the gear slot 11 or disengaged from the gear slot 11.

[0037] As mentioned above, the shift device 100 with four gears needs to open four gear slots 11 on the first plate 10 according to the traditional method. If the shift device 100 needs eight gears, it needs to open eight gear slots 11 on the first plate 10 according to the traditional method. Adding gear slots 11 will undoubtedly increase the processing cost. In order to increase the number of gears of the shift device 100 without adding gear slots 11, in the embodiment of the present application, Figure 3 As shown, the more than two rolling bodies 21 include at least a first group of rolling bodies, the first group of rolling bodies includes a first rolling body 2111 and a second rolling body 2112, the first disc body 10 and the second disc body 20 rotate relative to each other to the first gear position, the first rolling body 2111 is embedded in one of the gear slots 11, and the second rolling body 2112 is located between two adjacent gear slots 11; the first disc body 10 and the second disc body 20 rotate relative to each other to the second gear position, the first rolling body 2111 is located between two adjacent gear slots 11, and the second rolling body 2112 is embedded in one of the gear slots 11.

[0038] The first rolling body 2111 and the second rolling body 2112 are arranged in the above manner so that the position between two adjacent gear slots 11 can also become the stationary position of the rolling body 21. In this way, when the first rolling body 2111 is located at the stationary position between the two adjacent gear slots 11, since the second rolling body 2112 is located in one of the gear slots 11, it can still form a gear shifting resistance between the first disc 10 and the second disc 20, so that this state can become a gear; when the first disc 10 and the second disc 20 rotate relative to each other, the first rolling body 2111 moves from the current two adjacent gear slots to the stationary position. 11, when the second rolling body 2112 is in the stationary position between the first and second disc bodies 10 and 20 and falls into the adjacent gear slot 11, the second rolling body 2112 is disengaged from the current gear slot 11 and stays between the current gear slot 11 and the next gear slot 11. At this time, since the first rolling body 2111 is located in one of the gear slots 11, it can still form a shifting resistance between the first disc body 10 and the second disc body 20, so that this state can become a gear again. Therefore, the number of gears of the shifting device 100 can be doubled without increasing the number of the original gear slots 11, thereby optimizing the component structure configuration and making full use of the component structure potential.

[0039] The shift device 100 provided in the embodiment of the present application includes a first plate 10 and a second plate 20; one end of the first plate 10 is provided with two or more gear slots 11 along the circumferential direction; the second plate 20 is provided with two or more rolling bodies 21 along the circumferential direction at one end facing the gear slot 11, and each rolling body 21 is provided with an elastic member 22 on the side facing away from the gear slot 11, the first plate 10 and the second plate 20 rotate relative to each other, and the rolling body 21 can be embedded in the gear slot 11 or detached from the gear slot 11; wherein, among the two or more rolling bodies 21, at least one rolling body 21 is provided. The first group of rolling bodies includes a first rolling body 2111 and a second rolling body 2112. The first plate 10 and the second plate 20 rotate relatively to the first gear, the first rolling body 2111 is embedded in one of the gear slots 11, and the second rolling body 2112 is located between two adjacent gear slots 11; the first plate 10 and the second plate 20 rotate relatively to the second gear, the first rolling body 2111 is located between two adjacent gear slots 11, and the second rolling body 2112 is embedded in one of the gear slots 11. In this way, based on the number of original gear slots 11, the resident position of the rolling body 21 in the adjacent gear slots 11 can be expanded to increase the gears of the gear shifting device. When the number of gears is required to be large, the device can effectively save the number of gear slots 11 and reduce the processing cost.

[0040] In order to adjust the feel of the gear shift, optional Figure 4 As shown, in one embodiment of the present application, the two or more rolling bodies 21 include at least a second group of rolling bodies, the second group of rolling bodies includes a third rolling body 2121 and a fourth rolling body 2122, the first plate 10 and the second plate 20 rotate relatively to the first gear, the third rolling body 2121 is embedded in one of the gear slots 11, and the fourth rolling body 2122 is located between two adjacent gear slots 11; the first plate 10 and the second plate 20 rotate relatively to the second gear, the third rolling body 2121 is located between two adjacent gear slots 11, and the fourth rolling body 2122 is embedded in one of the gear slots 11. It can be understood that due to the addition of the second group of rolling bodies, when the gear is switched, under the action of the elastic member 22 corresponding to each rolling body 21 of the second group of rolling bodies, each rolling body 21 of the second group of rolling bodies will further increase the gear switching resistance when it is embedded in or out of the gear slot 11, thereby improving the feel of the gear switching. In addition, due to the addition of the second set of rolling elements, a more stable contact support is formed between the first plate 10 and the second plate 20. Figure 4 In the arrangement method of the first group of rolling elements shown in the figure, a second group of rolling elements is added. Figure 4 Compared with only the first set of rolling elements Figure 3 The rolling body 21 forms more contact support positions between the first plate body 10 and the second plate body 20, thereby further improving the structural stability and working reliability of the shifting device 100.

[0041] When the rolling element 21 and the elastic element 22 are arranged at one end of the second plate 20 facing the shift slot 11, it is optional that Figure 1 , Figure 2 As shown, in one embodiment of the present application, the second plate 20 is provided with more than two limiting holes 23 along the circumferential direction at one end facing the gear slot 11, and in each limiting hole 23, an elastic member 22 and a rolling body 21 are sequentially provided in the direction facing the first plate 10. Through this specific structural mode, the rolling body 21 is limited in the radial direction of the second plate 20 and can move in the axial direction of the second plate 20. When the shifting device 100 switches gears, during the relative rotation of the first plate 10 and the second plate 20, the elastic member 22 and the rolling body 21 located in the limiting hole 23 are not easy to fall off, thereby avoiding the rolling body 21 from being stuck or dislocated during the gear shift.

[0042] Since foreign matter, debris, etc. may fall into the gear slot 11 or the opposite surface of the first plate 10 and the second plate 20, affecting the residence or rotation of the rolling body 21, it is optional, such as Figure 2 As shown, in one embodiment of the present application, a first groove 12 is provided at one end of the first plate body 10, and two or more gear grooves 11 are circumferentially arranged at the groove bottom of the first groove 12, and an end of the second plate body 20 facing the gear groove 11 is at least partially located in the first groove 12. The end of the second plate body 20 facing the gear groove 11 is partially embedded in the first groove 12 of the first plate body 10, so that the opposite surfaces of the first plate body 10 and the second plate body 20 can be shielded, so as to prevent foreign matter from entering the opposite surfaces of the first plate body 10 and the second plate body 20 in the radial direction, or entering the gear groove 11 and the limiting hole 23, and affecting the gear switching function of the shifting device 100.

[0043] The structure of the shifting device 100 is based on different application scenarios. The first plate 10 can be connected to the first component, and the second plate 20 can be connected to the second component. The shifting function can be realized by ensuring that the first plate 10 and the second plate 20 meet the corresponding coaxiality and axial distance requirements. Optionally, Figure 1 , Figure 2 As shown, in one embodiment of the present application, a rotating shaft 30 is further included, and the first disk body 10 and the second disk body 20 are sleeved on the rotating shaft 30. In this embodiment, according to the use scenario of the observation instrument, the first disk body 10 and the second disk body 20 are sleeved on the same rotating shaft 30, which is conducive to achieving the coaxiality requirement of the first disk body 10 and the second disk body 20 while ensuring a compact structure. At the same time, a shaft sleeve, a collar and other components can be sleeved between the rotating shaft 30 located between the first disk body 10 and the second disk body 20 to achieve the axial distance requirement between the first disk body 10 and the second disk body 20.

[0044] Optionally, in one embodiment of the present application, the first plate body 10 includes a first gear plate 13 and a first rotating plate 14, the first rotating plate 14 is sleeved on the rotating shaft 30, the first gear plate 13 is connected to the first rotating plate 14, and more than two gear slots 11 are circumferentially arranged at one end of the first gear plate 13. Figure 2 As shown, the first disk body 10 is designed as a split structure according to its function to be realized, which is convenient for processing, manufacturing, installation and maintenance, and avoids configuring too many size, shape and position tolerance requirements on the same component to affect processing or assembly.

[0045] To further improve the feel of the shift device 100 when shifting gears, optionally, Figure 1 , Figure 2 As shown, in one embodiment of the present application, a locking member 31 is provided at the end of the second disk body 20 away from the gear slot 11, and a damping member 32 is provided between the second disk body 20 and the locking member 31; the first disk body 10 is circumferentially limited to the rotating shaft 30, and the second disk body 20 is rotatably connected to the rotating shaft 30. The first plate body 10 is circumferentially limited to the rotating shaft 30. For example, the first plate body 10 and the rotating shaft 30 are connected by a key connection, an interference fit connection, etc., so that the first plate body 10 and the rotating shaft 30 can rotate together and drive the locking member 31 set on the rotating shaft 30 to rotate. By setting a damping member 32 between the second plate body 20 and the locking member 31, during the rotation of the second plate body 20 relative to the first plate body 10 and the rotating shaft 30, a friction resistance can be generated between the contact surface of the second plate body 20 and the damping member 32 to form a damping feel. The damping member 32 can be an elastic member or an elastic component. For example, the damping member 32 can specifically include a wave spring and auxiliary gaskets arranged at both ends of the wave spring. The preset elastic size of the damping member 32 can be changed by changing the axial distance of the locking member 31 along the rotating shaft 30, thereby adjusting the friction resistance between the damping member 32 and the contact surface of the second plate body 20 to obtain a shifting feel that meets the user's requirements.

[0046] Optionally, in one embodiment of the present application, Figure 1 , Figure 2As shown, the second disc 20 includes a second shift disc 24 and a second rotating disc 25. The second shift disc 24 is provided with more than two limit holes 23 along the circumferential direction at one end facing the shift slot 11. In each limit hole 23, an elastic member 22 and a rolling body 21 are sequentially provided in the direction of the first disc 10. The second rotating disc 25 is rotatably connected to the rotating shaft 30, the second shift disc 24 is connected to the second rotating disc 25, and the damping member 32 is arranged between the second rotating disc 25 and the locking member 31. This solution provides a split structure of the second disc 20, so as to facilitate the processing, manufacturing, installation and maintenance of the second disc 20. Optionally, in one embodiment of the present application, the second plate body 20 further includes a pressure plate 26, and a second groove 241 is provided at one end of the second gear plate 24 away from the gear slot 11, and an end of the pressure plate 26 facing the second gear plate 24 is at least partially located in the second groove 241, and the pressure plate 26 is connected to the second gear plate 24; the limiting hole 23 is a through hole, and the pressure plate 26 at least partially blocks the limiting hole 23. In this embodiment, the limiting hole 23 is designed as a through hole, which is convenient for installing the rolling body 21 and the elastic member 22. At the same time, in order to prevent foreign matter from entering the limiting hole 23, one end of the pressure plate 26 facing the second gear plate 24 is partially located in the second groove 241 of the second gear plate 24, so that the second groove 241 forms a shield for the pressure plate 26, and the pressure plate 26 blocks the limiting hole 23, thereby preventing foreign matter from entering the limiting hole 23 in the radial direction or along the pressure plate 26 toward the second groove 241 in the axial direction, causing an impact on the rolling body 21, and ensuring the functional reliability of the shifting device 100.

[0047] In order to realize the function of increasing the number of gears of the gear shifting device 100 without increasing the number of gear slots 11, when specifically designing and configuring the rolling body 21 of the gear shifting device 100, optionally, in one embodiment of the present application, the first rolling body 2111 and the second rolling body 2112 have a first preset angle β along the circumference of the second disk body 20, β=(180 / n)×m, in degrees, n is the number of gear slots 11, m is a positive odd number, and 1≤m≤2n-1. According to the specific calculation formula of the first preset angle, the installation position of the rolling body 21 can be specifically configured according to the actual situation. As long as the two have the first preset angle, when the first plate 10 and the second plate 20 rotate relative to each other to the first gear, the first rolling body 2111 is embedded in one of the gear slots 11, and the second rolling body 2112 is located between two adjacent gear slots 11; and when the first plate 10 and the second plate 20 rotate relative to each other to the second gear, the first rolling body 2111 is located between two adjacent gear slots 11, and the second rolling body 2112 is embedded in one of the gear slots 11, thereby doubling the number of gears of the shifting device 100 without increasing the number of original gear slots 11. For a shifting device 100 having only the first rolling body 2111 and the second rolling body 2112, as shown in FIG. Figure 3As shown, the first rolling body 2111 and the second rolling body 2112 can be arranged as evenly as possible along the circumference of the second plate 20. Therefore, preferably, m is a positive odd number, and 3≤m≤2n-3. For a shifting device 100 having multiple groups of rolling bodies, for example, a shifting device 100 having a first group of rolling bodies and a second group of rolling bodies, as shown in FIG. Figure 4 As shown, the first preset angle β1 of the first rolling body 2111 and the second rolling body 2112 of the first group of rolling bodies and the first preset angle β2 of the third rolling body 2121 and the fourth rolling body 2122 of the second group of rolling bodies may be the same or different.

[0048] In order to adjust the hand feeling when the gear is switched and improve the contact support stability between the first plate body 10 and the second plate body 20, it is optional, such as Figure 5 As shown, in one embodiment of the present application, the more than two rolling bodies 21 also include at least one auxiliary rolling body 213, and the auxiliary rolling body 213 and the first rolling body 2111 have a second preset angle γ along the circumference of the second disk body 20, γ=(180 / n)×i, the unit is degree, n is the number of gear slots 11, i is a natural number, and 1≤i≤2n-1. The scheme of the present embodiment can achieve the beneficial effect of adding the second group of rolling bodies mentioned above by using only one or more auxiliary rolling bodies 213 without adding the second group of rolling bodies. As long as the auxiliary rolling body 213 has a second preset angle, when the first plate body 10 and the second plate body 20 rotate relative to each other to the first gear position, the first rolling body 2111 is embedded in one of the gear slots 11, and the auxiliary rolling body 213 is located between two adjacent gear slots 11 or embedded in one of the gear slots 11; and when the first plate body 10 and the second plate body 20 rotate relative to each other to the second gear position, the first rolling body 2111 is located between two adjacent gear slots 11, and the auxiliary rolling body 213 is embedded in one of the gear slots 11 or located between two adjacent gear slots 11, thereby improving the gear shifting feel and improving the structural stability and working reliability of the gear shifting device 100.

[0049] Since the gear shifting device 100 mostly adopts a structural mode of two rolling bodies 21, in this embodiment, two rolling bodies 21 are provided through the aforementioned scheme, namely, a first rolling body 2111 and a second rolling body 2112 to realize a specific functional structure of increasing the number of gears without increasing the number of gear slots 11. However, considering that more than three rolling bodies 21 may be used in some application scenarios, therefore, in a second aspect, an embodiment of the present application further provides a gear shifting device 100, which includes a first plate body 10 and a second plate body 20; one end of the first plate body 10 is provided with more than two gear slots 11 along the circumferential direction; the second plate body 20 is provided with two gear slots 11 along the circumferential direction at one end facing the gear slot 11 There are more than one rolling body 21, and each rolling body 21 is provided with an elastic member 22 on the side facing away from the gear slot 11, the first plate 10 and the second plate 20 rotate relative to each other, and the rolling body 21 can be embedded in the gear slot 11 or detached from the gear slot 11; wherein, the more than two rolling bodies 21 include at least a first group of rolling bodies, the first group of rolling bodies includes p rolling bodies 21, p ≥ 3, the first plate 10 and the second plate 20 rotate relative to each other to the wth gear, w is a natural number, and w=1, 2, ..., p, one of the rolling bodies 21 of the first group of rolling bodies is embedded in one of the gear slots 11, and the other rolling bodies 21 of the first group of rolling bodies are located between two adjacent gear slots 11.

[0050] In this embodiment, the gear shifting device 100 using p rolling bodies 21 can increase the number of gears to p times the original number without adding gear slots 11. For example, the gear shifting device 100 using three rolling bodies 21 is used as an example. When the first plate 10 and the second plate 20 are composed of the following components: Figure 6 The current gear position shown is relatively rotated to the first gear position, the first embedded rolling body 2141 is embedded in one of the gear slots 11, and the second embedded rolling body 2142 and the third embedded rolling body 2143 are located between two adjacent gear slots 11; the first plate body 10 and the second plate body 20 are relatively rotated to the second gear position, the second embedded rolling body 2142 is embedded in one of the gear slots 11, and the first embedded rolling body 2141 and the third embedded rolling body 2143 are located between two adjacent gear slots 11; the first plate body 10 and the second plate body 20 are relatively rotated to the third gear position, the third embedded rolling body 2143 is embedded in one of the gear slots 11, and the first embedded rolling body 2141 and the second embedded rolling body 2142 are located between two adjacent gear slots 11, so that the number of gears of the shifting device 100 is increased to three times the original number without increasing the number of original gear slots 11, further optimizing the component structure configuration and fully tapping the component structure potential.

[0051] For a shifting device 100 including more than three rolling bodies 21, when adjusting the strength of the shifting feel, optionally, in one embodiment of the present application, the more than two rolling bodies 21 include at least a second group of rolling bodies, the second group of rolling bodies includes p rolling bodies 21, p ≥ 3, the first plate 10 and the second plate 20 rotate relative to each other to the wth gear position, one of the rolling bodies 21 of the second group of rolling bodies is embedded in one of the gear slots 11, and the other rolling bodies 21 of the second group of rolling bodies are located between two adjacent gear slots 11. Similarly, this structural solution not only improves the shifting feel, but also improves the structural stability and working reliability of the shifting device 100.

[0052] When specifically designing and configuring a shifting device 100 including more than three rolling elements 21, optionally, in one embodiment of the present application, when any rolling element 21 of the first group of rolling elements is embedded in one of the gear slots 11, the p rolling elements 21 of the first group of rolling elements respectively have a third preset angle θ with the next adjacent gear slot 11 along the preset rotation direction. i , where θ i =(360 / n)×i / p, the unit is degree, n is the number of the gear slots 11, i is a natural number, and i=1, 2, ..., p.

[0053] When the number of distribution and the spatial size of the gear slots 11 allow, the p rolling bodies 21 are arranged according to the third preset angle, so that the first plate 10 and the second plate 20 can rotate relative to each other to the wth gear, where w is a natural number, and w=1, 2, ..., p, and one of the rolling bodies 21 of the first group of rolling bodies is embedded in one of the gear slots 11, and the other rolling bodies 21 of the first group of rolling bodies are located between two adjacent gear slots 11. For example, a gear shift device 100 using three rolling bodies 21 is used as an example. Figure 6 As shown, there are four gear slots 11 and three rolling elements 21, and “+” indicates the possible stationary position of the rolling element 21. i = (360 / n) × i / p, in degrees, θ1 = 30 degrees, θ2 = 60 degrees, θ3 = 90 degrees. Therefore, as long as the three rolling elements 21 of the first group of rolling elements are configured to have preset angles of 30 degrees, 60 degrees, and 90 degrees with the next adjacent gear slot 11 along the preset rotation direction, for example, the counterclockwise direction, the first plate 10 and the second plate 20 can be formed as follows: Figure 6 The current gear position shown is relatively rotated along the preset rotation direction to Figure 7 In the first gear position shown in FIG. 1 , the first embedded rolling body 2141 with a preset angle of 30 degrees is embedded in the gear slot 11, and the other two rolling bodies are located between two adjacent gear slots 11. The first plate 10 and the second plate 20 are formed as follows. Figure 7 The first gear shown is relatively rotated to Figure 8In the second gear position shown in FIG. 1 , the second embedded rolling body 2142 with a preset angle of 60 degrees is embedded in the gear slot 11, and the other two rolling bodies are located between two adjacent gear slots 11. The first plate 10 and the second plate 20 are formed as follows: Figure 8 The second gear shown is relatively rotated to Fig. 9 In the third gear position shown, the third embedded rolling body 2143 with a preset angle of 90 degrees is embedded in the gear slot 11, and the other two rolling bodies are located between two adjacent gear slots 11, so as to realize the switching of the first gear position, the second gear position, and the third gear position in sequence. It can be seen that without increasing the number of the original gear slots 11, the number of gear positions of the shifting device 100 is increased from the original four gear positions to twelve gear positions. Among them, the specific relative positions of the three rolling bodies 21 can be set according to the situation, as long as the three rolling bodies 21 are configured to have a preset angle of 30 degrees, 60 degrees, and 90 degrees with the next adjacent gear slot 11 along the preset rotation direction.

[0054] For a shifting device 100 including more than three rolling bodies 21, in order to adjust the strength of the shifting feel and improve the contact support stability between the first plate 10 and the second plate 20, optionally, in one embodiment of the present application, at least one auxiliary rolling body 213 is included in the two or more rolling bodies 21. When any rolling body 21 of the first group of rolling bodies is embedded in one of the gear slots 11, the auxiliary rolling body 213 has a fourth preset angle φ with the next adjacent gear slot 11 along the preset rotation direction, φ=(360 / n)×i / p, the unit is degree, n is the number of gear slots 11, i is a natural number, and 1≤i≤p. Similarly, this solution can use only one or more auxiliary rolling bodies 213 without adding a second group of rolling bodies, so as to improve the shifting feel of the shifting device 100 including more than three rolling bodies 21, and at the same time improve its structural stability and working reliability.

[0055] In a third aspect, the embodiment of the present application further provides an observation instrument, comprising a lens assembly, a display screen, and a shifting device 100, wherein the shifting device 100 is any shifting device 100 in the embodiment of the present application, wherein one of the first disk body 10 and the second disk body 20 is connected to the lens assembly, and the other is connected to the display screen. Since the observation instrument may adjust the screen viewing angle of the display screen or the image collection angle of the lens assembly during use, the shifting device 100 of this embodiment can adjust the angle of the display screen relative to the lens assembly by switching the gear position by relative rotation of the first disk body 10 and the second disk body 20, under the premise that the position of the lens assembly does not change to avoid affecting the adjusted image collection angle, thereby obtaining a screen viewing angle that meets the requirements; or, under the premise that the position of the display screen does not change to avoid affecting the adjusted screen viewing angle, the first disk body 10 and the second disk body 20 can be used to switch the gear position by relative rotation to adjust the angle of the lens assembly relative to the display screen, thereby obtaining a image collection angle that meets the requirements.

[0056] The observation instrument provided in the embodiment of the present application includes a shifting device 100, which specifically includes a first plate 10 and a second plate 20; one end of the first plate 10 is provided with more than two gear slots 11 along the circumferential direction; the second plate 20 is provided with more than two rolling bodies 21 along the circumferential direction at one end facing the gear slot 11, and each rolling body 21 is provided with an elastic member 22 on the side facing away from the gear slot 11, the first plate 10 and the second plate 20 rotate relative to each other, and the rolling body 21 can be embedded in the gear slot 11 or detached from the gear slot 11; wherein the two The upper rolling body 21 includes at least a first group of rolling bodies, and the first group of rolling bodies includes a first rolling body 2111 and a second rolling body 2112. The first plate 10 and the second plate 20 rotate relatively to the first gear, and the first rolling body 2111 is embedded in one of the gear slots 11, and the second rolling body 2112 is located between two adjacent gear slots 11; the first plate 10 and the second plate 20 rotate relatively to the second gear, and the first rolling body 2111 is located between two adjacent gear slots 11, and the second rolling body 2112 is embedded in one of the gear slots 11. In this way, based on the number of original gear slots 11, the resident position of the rolling body 21 in the adjacent gear slots 11 can be expanded to increase the gears of the shifting device. When the number of gears is required to be large, the device can effectively save the number of gear slots 11 and reduce the processing cost.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0058] The above content has described the embodiments of the present application in detail. Those skilled in the art can design and modify the device and its use within the scope of the present application according to the on-site construction conditions.

[0059] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0060] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A gear shifting device, characterized in that: include: A first disc body, wherein one end of the first disc body is provided with more than two gear slots along the circumferential direction; A second disc, wherein the second disc is provided with two or more rolling bodies along the circumferential direction at one end facing the gear slot, and each rolling body is provided with an elastic member on a side facing away from the gear slot, the first disc and the second disc are relatively rotatable, and the rolling body can be embedded in the gear slot or detached from the gear slot; Among them, the more than two rolling bodies include at least a first group of rolling bodies, the first group of rolling bodies includes a first rolling body and a second rolling body, the first disk body and the second disk body rotate relative to each other to a first gear position, the first rolling body is embedded in one of the gear slots, and the second rolling body is located between two adjacent gear slots; the first disk body and the second disk body rotate relative to each other to a second gear position, the first rolling body is located between two adjacent gear slots, and the second rolling body is embedded in one of the gear slots.

2. The shifting device according to claim 1, characterized in that: The more than two rolling bodies include at least a second group of rolling bodies, the second group of rolling bodies includes a third rolling body and a fourth rolling body, the first disk body and the second disk body rotate relative to each other to the first gear position, the third rolling body is embedded in one of the gear slots, and the fourth rolling body is located between two adjacent gear slots; the first disk body and the second disk body rotate relative to each other to the second gear position, the third rolling body is located between two adjacent gear slots, and the fourth rolling body is embedded in one of the gear slots.

3. The shifting device according to claim 1, characterized in that: The second disc body is provided with more than two limiting holes along the circumferential direction at one end facing the shift slot, and in each of the limiting holes, the elastic member and the rolling body are sequentially provided in the direction of the first disc body.

4. The shifting device according to claim 1, characterized in that: A first groove is provided at one end of the first disk body, the two or more gear grooves are circumferentially arranged at the bottom of the first groove, and one end of the second disk body facing the gear groove is at least partially located in the first groove.

5. The shifting device according to claim 1, characterized in that: It also includes a rotating shaft, and the first disk body and the second disk body are sleeved on the rotating shaft.

6. The shifting device according to claim 5, characterized in that: The first disc body comprises a first gear disc and a first rotating disc, the first rotating disc is sleeved on the rotating shaft, the first gear disc is connected to the first rotating disc, and the more than two gear slots are circumferentially arranged at one end of the first gear disc.

7. The shifting device according to claim 5, characterized in that: The rotating shaft is provided with a locking member at one end of the second disk body away from the gear slot, and a damping member is provided between the second disk body and the locking member; the first disk body is circumferentially limited to the rotating shaft, and the second disk body is rotatably connected to the rotating shaft.

8. The shifting device according to claim 7, characterized in that: The second plate body comprises a second shift plate and a second rotating plate, wherein the second shift plate is provided with more than two limit holes along the circumferential direction at one end facing the shift slot, and each of the limit holes is provided with the elastic member and the rolling body in sequence in the direction facing the first plate body; The second rotating disk is rotatably connected to the rotating shaft, the second gear plate is connected to the second rotating disk, and the damping member is arranged between the second rotating disk and the locking member.

9. The shifting device according to claim 8, characterized in that: The second disk body also includes a pressure plate, and a second groove is provided at one end of the second gear plate away from the gear slot, and the end of the pressure plate facing the second gear plate is at least partially located in the second groove, and the pressure plate is connected to the second gear plate; the limiting hole is a through hole, and the pressure plate at least partially blocks the limiting hole.

10. The shifting device according to claim 1, characterized in that: The first rolling body and the second rolling body have a first preset angle β along the circumference of the second disk body, β=(180 / n)×m, in degrees, n is the number of the gear slots, m is a positive odd number, and 1≤m≤2n-1.

11. The shifting device according to claim 1, characterized in that: Among the more than two rolling bodies, at least one auxiliary rolling body is included, and the auxiliary rolling body and the first rolling body have a second preset angle γ along the circumference of the second disk body, γ=(180 / n)×i, the unit is degree, n is the number of the gear slots, i is a natural number, and 1≤i≤2n-1.

12. A gear shifting device, characterized in that: include: A first disc body, wherein one end of the first disc body is provided with more than two gear slots along the circumferential direction; A second disc, wherein the second disc is provided with two or more rolling bodies along the circumferential direction at one end facing the gear slot, and each rolling body is provided with an elastic member on a side facing away from the gear slot, the first disc and the second disc are relatively rotatable, and the rolling body can be embedded in the gear slot or detached from the gear slot; Among them, the more than two rolling bodies include at least a first group of rolling bodies, the first group of rolling bodies includes p rolling bodies, p≥3, the first disk body and the second disk body rotate relative to each other to the wth gear position, w is a natural number, and w=1, 2,..., p, one of the rolling bodies of the first group of rolling bodies is embedded in one of the gear slots, and the other rolling bodies of the first group of rolling bodies are located between two adjacent gear slots.

13. The shifting device according to claim 12, characterized in that: The more than two rolling bodies include at least a second group of rolling bodies, the second group of rolling bodies includes p rolling bodies, p≥3, the first disk body and the second disk body rotate relative to each other to the wth gear position, one of the rolling bodies of the second group of rolling bodies is embedded in one of the gear slots, and the other rolling bodies of the second group of rolling bodies are located between two adjacent gear slots.

14. The shifting device according to claim 12, characterized in that: When any rolling element of the first group of rolling elements is embedded in one of the gear slots, the p rolling elements of the first group of rolling elements have a third preset angle θ with the next adjacent gear slot along the preset rotation direction. i , where θ i = (360 / n) × i / p, the unit is degree, n is the number of the gear slots, i is a natural number, and i=1, 2, ..., p.

15. The shifting device according to claim 12, characterized in that: The two or more rolling bodies include at least one auxiliary rolling body. When any rolling body of the first group of rolling bodies is embedded in one of the gear slots, the auxiliary rolling body has a fourth preset angle φ with the next adjacent gear slot along the preset rotation direction, φ=(360 / n)×i / p, the unit is degree, n is the number of the gear slots, i is a natural number, and 1≤i≤p.

16. An observation instrument, characterized in that: include: Lens assembly, display screen; A gear shifting device, wherein the gear shifting device is the gear shifting device described in any one of claims 1 to 15, wherein one of the first disk body and the second disk body is connected to the lens assembly, and the other is connected to the display screen.

Images