A transmission mechanism

Abstract

The application discloses a transmission mechanism, which comprises a base, a connecting rod assembly capable of rotating around a rotation center, a driving unit connected with the connecting rod assembly, and a first sliding block movably arranged on the connecting rod assembly and capable of sliding in a sliding groove of the base, wherein the driving unit drives the connecting rod assembly to rotate around the rotation center, and the sliding track of the first sliding block in the sliding groove of the base is defined by cooperation of the sliding of the first sliding block on the connecting rod assembly. The transmission mechanism is provided, the movement power of the first sliding block is transmitted to the second sliding block by setting the running track of the transmission mechanism, the mechanism capable of converting linear motion into rotary motion is arranged on the second sliding block, the transmission function is met, the space occupied by the transmission mechanism is reduced, and the space utilization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical transmission, in particular, relates to a transmission mechanism. BACKGROUND

[0002] With the development of the times, and the development of people's aesthetic, the appearance structure of various products becomes more and more high, at the same time, the transmission components under the product appearance structure also become more and more high, in the limited space, it can complete the transmission while not occupying more space, then becomes the problem to be solved urgently, for example, household appliances in use, due to the limited space of family and the shape of the product itself, it is urgent to improve the transmission part of the product.

[0003] The Chinese patent with the application number CN200820141240.3 discloses a multi-gear telescopic hinge connecting rod, which comprises an outer sheath, a telescopic connecting rod, a positioning bolt, and a gear tooth. The telescopic connecting rod is provided with a gear device at the inner end, which comprises a fixed gear spring, a reverse gear slider, and an elastic member. One end of the fixed gear spring is a connecting end, and the other end is a free end. The elastic member is arranged between the fixed gear spring and the telescopic connecting rod. The positioning bolt is fixedly arranged at the free end of the fixed gear spring. The reverse gear slider is provided with a hollow bolt slot, which is composed of a horizontal sliding groove and a slope sliding groove. The reverse gear slider is sleeved on the positioning bolt through the bolt slot.

[0004] The Chinese patent with the application number CN201611081707.5 discloses a limiting mechanism, which comprises a sliding groove, a sliding block, a stop block, a locking block, a connecting rod, and a spring. One end of the locking block is hingedly connected with the connecting rod, and the other end is movably connected with the sliding block. The stop block is installed on the sliding block, and the sliding block is installed in the sliding groove and can slide along the sliding groove. One end of the spring is connected with the sliding block, and the other end is connected with the stop block. The stop block can slide relative to the sliding block in the extension direction of the spring. At the same time, the locking block and the sliding block form an included angle. When the spring is in a compressed state, the elastic force of the spring promotes the sliding block, the stop block, and the sliding groove to generate a pressing force, so as to prevent the sliding block from freely sliding.

[0005] The above-mentioned prior art proposes a technical scheme about the transmission mechanism, but the hinge connecting rod transmission is relatively complex, and the limiting mechanism cannot well realize the transmission function. Therefore, the above-mentioned prior art still has defects.

[0006] Therefore, it is necessary to improve the defects of the prior art, provide a transmission mechanism, set the running track of the transmission mechanism, transmit the movement power of the first sliding block to the second sliding block, and set a mechanism capable of converting linear motion into rotary motion on the second sliding block. The transmission mechanism occupies less space, improves the utilization efficiency of the space, and meets the transmission function.

[0007] Therefore, the present application is proposed. SUMMARY

[0008] The technical problem solved by the present application is to overcome the deficiencies of the prior art, and to provide a transmission mechanism that can overcome the above problems or at least partially solve the above problems.

[0009] To solve the above technical problems, the basic idea of the technical solution of the present application is: a transmission mechanism, comprising

[0010] a base;

[0011] a connecting rod assembly capable of rotating around a rotation center;

[0012] a driving unit connected to the connecting rod assembly;

[0013] a first sliding block movably arranged on the connecting rod assembly and capable of sliding in a sliding groove of the base;

[0014] wherein the driving unit drives the connecting rod assembly to rotate around the rotation center, and cooperates with the sliding of the first sliding block on the connecting rod assembly to define the sliding trajectory of the first sliding block in the sliding groove of the base.

[0015] In addition, it also comprises

[0016] a second sliding block movably arranged on the connecting rod assembly and capable of sliding in a sliding groove of the base;

[0017] the driving unit drives the connecting rod assembly to rotate around the rotation center, and cooperates with the sliding of the second sliding block on the connecting rod assembly to define the sliding trajectory of the second sliding block in the sliding groove of the base;

[0018] In one embodiment, the base comprises a first sliding groove and a second sliding groove;

[0019] the first sliding block and the second sliding block are respectively arranged to slide in the first sliding groove and the second sliding groove;

[0020] In one embodiment, the sliding of the first sliding block and the second sliding block in the first sliding groove and the second sliding groove is linear motion;

[0021] In one embodiment, the first sliding groove and the second sliding groove are arranged in parallel;

[0022] In one embodiment, the rotation center is arranged on the base.

[0023] Further, the base is provided with a first limiting portion and a second limiting portion;

[0024] the first sliding block can slide in the area formed between the first limiting portion and the second limiting portion.

[0025] Meanwhile, the linkage assembly comprises a first linkage and a second linkage;

[0026] The first linkage is matched with a rotating shaft and can rotate around the rotating center;

[0027] When the first linkage rotates around the rotating center, the second linkage can be inserted into or out of the first linkage along the length direction of the first linkage.

[0028] Further, one end of the first linkage is matched with the first slider, and the position close to the other end is matched with the rotating shaft arranged at the rotating center;

[0029] The first linkage is provided with a linkage slot which can accommodate the second linkage inserted into or out of the first linkage;

[0030] The first linkage slot is further provided with a first long slot arranged along the length direction of the first linkage.

[0031] Further, the first slider is provided with a first guide column matched with the first long slot;

[0032] When the first linkage rotates around the rotating center, the first guide column of the first slider slides in the first long slot under the action of the first linkage.

[0033] Further, one end of the second linkage is matched with the second slider, and the other end is provided with a second guide column;

[0034] The second guide column is matched with the first long slot of the first linkage;

[0035] When the first linkage rotates around the rotating center, the second guide column of the second slider slides in the first long slot under the action of the first linkage.

[0036] Further, the second linkage is provided with a second long slot matched with the rotating shaft;

[0037] The second long slot is a long slot arranged along the length direction of the second linkage.

[0038] Further, one end of the second slider is matched with the second linkage, and the position close to the other end is provided with a mounting part;

[0039] The mounting part is a cylindrical structure with a through hole in the center;

[0040] In one embodiment, a rotating part is matched with the through hole in the center of the mounting part.

[0041] Further, the second slider is further provided with a first baffle extending towards the mounting portion;

[0042] The rotating portion is provided with a second baffle extending towards the mounting portion;

[0043] A torsion spring is arranged outside the mounting portion and cooperates with the first baffle and the second baffle.

[0044] Compared with the prior art, the present application has the following beneficial effects:

[0045] 1. The base cooperates with the connecting rod assembly, and the movement track of the two sliders connected with the connecting rod assembly is limited, so that the function of transmitting movement of the slider under the action of the connecting rod assembly is realized, and the transmission mechanism has the characteristics of small occupied space and small movement amplitude;

[0046] 2. The connecting rod assembly is arranged in a structure capable of stretching and contracting during rotation, so that the direction of the movement track and the size of the movement amplitude of the slider during movement are controlled, the transmission mechanism transmits movement, and the space problem caused by the excessive size is avoided;

[0047] 3. The rotating portion and the torsion spring are arranged at one end of the second slider, the torsion spring cooperates with the guide portion arranged inside the base to convert the linear movement of the slider into rotary movement, the adaptability of the device is improved, and the application of the device in products is expanded.

[0048] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0049] The accompanying drawings are part of the present application and serve to provide a further understanding of the present application, the illustrative embodiments of the present application and their descriptions serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor.

[0050] In the drawings:

[0051] Figure 1 is a first schematic view of the transmission mechanism shaft side of the present application;

[0052] Figure 2 is a second schematic view of the transmission mechanism shaft side of the present application;

[0053] Figure 3 is a first schematic view of the transmission mechanism of the present application;

[0054] Figure 4is a second schematic view of the transmission mechanism of the present application;

[0055] Figure 5 is a first connecting rod schematic view of the transmission mechanism of the present application;

[0056] Figure 6 is a second connecting rod schematic view of the transmission mechanism of the present application;

[0057] Figure 7 is a first slider schematic view of the transmission mechanism of the present application;

[0058] Figure 8 is a second slider schematic view of the transmission mechanism of the present application;

[0059] Figure 9 is a rotating part schematic view of the transmission mechanism of the present application;

[0060] Figure 10 is a third schematic view of the transmission mechanism of the present application.

[0061] In the figure: 1, base; 101, first sliding groove; 102, second sliding groove; 103, first limiting part; 104, second limiting part; 105, guide part; 2, connecting rod assembly; 201, first connecting rod; 202, second connecting rod; 203, connecting rod groove; 204, first opening; 205, second guide column; 206, second opening; 3, rotation center; 301, rotation shaft; 4, first slider; 401, first guide column; 5, second slider; 501, mounting part; 502, first baffle; 6, rotating part; 601, second baffle; 7, torsional spring.

[0062] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0064] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0065] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0066] Figures 1 to 4 These are the first and second schematic diagrams of the transmission mechanism from the shaft side and the first and second schematic diagrams of the transmission mechanism from the front view of the present invention. Figures 1 to 4 As can be seen, the main body of the transmission mechanism is a base 1, and the connecting rod assembly 2 rotates around the rotation center 3 on the base 1. The base 1 is also provided with a first slider 4 and a second slider 5 that cooperate with the two ends of the connecting rod assembly 2. The connecting rod assembly 2 forms a pendulum-like motion around the rotation center 3 on the base 1. Under the action of the connecting rod assembly 2, the motion trajectories of the first slider 4 and the second slider 5 are parallel. In one embodiment, the motion trajectory of the first slider 4 and the second slider 5 is a straight line. In practical applications, the motion trajectory of the first slider 4 and the second slider 5 can be set to an arc shape, etc., as needed. In addition, the base 1 is also provided with a first slide groove 101 and a second slide groove 102, which correspond to the first slider 4 and the second slider 5, respectively. Under the action of the first slide groove 101 and the second slide groove 102, the first slider 4 and the second slider 5 form their motion trajectory.

[0067] Furthermore, the linkage assembly 2 includes a first linkage 201 and a second linkage 202, wherein the first linkage 201 engages with the rotation shaft 301 and rotates about the rotation center 3. Figure 1 , 3And 4, the rotation axis 301 and the rotation center 3 are marked in the same position, which is actually installed with a rotation axis 301 in the rotation center 3, for positioning the first connecting rod 201, here in order to facilitate the observation, the two are marked as a whole, the first connecting rod 201 side towards the base 1, the length direction of the first connecting rod 201 is provided with connecting rod groove 203, the second connecting rod 202 can be in the range of connecting rod groove 203, in the length direction of the first connecting rod 201 into or out, the first connecting rod 201 in its length direction is also provided with the first opening 204, the first slider 4 is provided with the first guide column 401 matched with the first opening 204, the first guide column 401 is driven by the first opening 204 under the action of the first slider 4 along the first sliding slot 101 when the connecting rod assembly 2 rotates, at the same time, the second connecting rod 202 is provided with the second guide column 205 matched with the first opening 204, and the second guide column 205 is driven by the first opening 204 under the action of the second slider 5 along the first sliding slot 101 when the connecting rod assembly 2 rotates, the second connecting rod 202 is also provided with the second opening 206 matched with the rotation axis 301, the second opening 206 of the second connecting rod 202 also plays a guiding role when the second connecting rod 202 is inserted into or out of the length direction of the first connecting rod 201, and also avoids the second connecting rod 202 from deviating from the connecting rod groove 203.

[0068] Further, the base 1 is provided with the first limiting part 103 and the second limiting part 104, and the first slider 4 is matched with the first limiting part 103 and the second limiting part 104 respectively, so as to realize the rotary motion of the connecting rod assembly 2 within a certain range.

[0069] Further, one end of the second slider 5 is rotationally matched with the second connecting rod 202, and the other end is provided with a mounting part 501, the mounting part 501 is a hollow cylindrical structure, and a rotating part 6 matched with the mounting part 501 is also provided, the mounting part 501 is provided with a first baffle 502, the rotating part 6 is provided with a second baffle 601, and the outer side of the mounting part 501 is provided with a torsional spring 7 matched with the first baffle 502 and the second baffle 601, Figure 10 As can be seen, a guide part 105 is provided, the torsional spring 7 is matched with the guide part 105 provided on the inner side of the base, the torsional spring 7 and the guide part 105 realize the switching between linear motion and rotary motion, the guide part 105 is an arc-shaped guide structure, the torsional spring 7 provides restoring force after the linear motion is changed into rotary motion, this kind of setting makes the rotary motion of the connecting rod assembly 2 converted into the linear motion of the second slider 5, and then converts the linear motion of the second slider 5 into the rotary motion of the rotating part 6, providing various application situations of the transmission mechanism.

[0070] Figure 5 It is the first connecting rod 201 schematic diagram of the transmission mechanism of the application, in Figure 5As can be seen in the figure, the first connecting rod 201 is provided with a connecting rod slot 203 in the length direction, the connecting rod slot 203 cooperates with the second connecting rod 202 to form a channel for the second connecting rod 202 to slide in the first connecting rod 201, the first connecting rod 201 is further provided with a first opening 204, the first opening 204 cooperates with the first guide column 401 and the second guide column 205, in addition, the first connecting rod 201 is further provided with a rotation center 3 and a rotation shaft 301, in the actual installation process, the rotation center 3 needs to pass through a rotation shaft 301, the first connecting rod 201 rotates around the rotation shaft 301, in order to facilitate observation, in Figure 5 the figure, the rotation shaft 301 is omitted, and the rotation center 3 and the rotation shaft 301 are marked together.

[0071] Figure 6 is a schematic view of the second connecting rod 202 of the transmission mechanism of the application, in Figure 6 As can be seen in the figure, the second connecting rod 202 is provided with a second opening 206 and a second guide column 205, the second opening 206 cooperates with the rotation shaft 301 to form a guide for the second connecting rod 202 to extend into and out of the first connecting rod 201, the second guide column 205 cooperates with the first opening 204 of the first connecting rod 201, the other end of the second connecting rod 202 cooperates with the second sliding block 5, from Figure 6 As can be seen in the figure, the cooperation between the second connecting rod 202 and the second sliding block 5 is rotary cooperation.

[0072] Figure 7 and Figure 8 is a schematic view of the first sliding block 4 and the second sliding block 5 of the transmission mechanism of the application, from Figure 7 and Figure 8 As can be seen in the figures, the first sliding block 4 is provided with a first guide column 401, and the second sliding block 5 is provided with a rear mounting portion 501 and a first baffle 502.

[0073] Figure 9 and Figure 10 is a schematic view of the rotating portion 6 and the guide portion 105 of the transmission mechanism of the application, from Figure 9 As can be seen in the figure, the rotating portion 6 is provided with a second baffle 601, which cooperates with the first baffle 502 of the second sliding block 5 to cooperate with the torsion spring 7, the torsion spring 7 cooperates with the guide portion 105 provided on the inner side of the base 1, the torsion spring 7 and the guide portion 105 realize the switching between linear motion and rotary motion, the guide portion 105 is an arc-shaped guide structure, the torsion spring 7 provides a restoring force after the linear motion is converted into rotary motion, realizing the conversion of the linear motion of the second sliding block 5 into the rotary motion of the rotating portion 6.

[0074] Overall, the application cooperates the base 1 with the connecting rod assembly 2, and defines the movement trajectory of the two sliders connected with the connecting rod assembly 2, ensures that the movement power of the first slider 4 is transmitted to the second slider 5 under the action of the connecting rod assembly 2, and the movement trajectories of the two sliders are parallel, and the transmission mechanism has the characteristics of small space occupation and small movement amplitude; by setting the connecting rod assembly 2 as a structure that can be extended and retracted during rotation, the direction of the movement trajectory and the size of the movement amplitude of the slider during movement are controlled, ensuring that the transmission mechanism transmits movement while avoiding the space problems caused by its excessive size; the rotating part 6 and the torsional spring 7 are arranged at one end of the second slider 5, the torsional spring 7 cooperates with the guide part 105 arranged on the inner side of the base, converts the linear motion of the slider into rotary motion, and improves the adaptation range of the device, which expands the space for the application of the device in products.

[0075] Embodiment one

[0076] As shown in Figures 1 to 9 , the transmission mechanism described in the embodiment comprises a base 1, which is provided with a first sliding groove 101 and a second sliding groove 102; further comprising a connecting rod assembly 2 capable of rotating around a rotation center 3; a first slider 4 and a second slider 5 movably arranged on the connecting rod assembly 2 and capable of sliding corresponding to the first sliding groove 101 and the second sliding groove 102; wherein the sliding of the first slider 4 in the first sliding groove 101 drives the second slider 5 to slide synchronously in the second sliding groove 102 through the connecting rod assembly 2.

[0077] Further, the connecting rod assembly 2 comprises a first connecting rod 201 and a second connecting rod 202; the first connecting rod 201 cooperates with a rotating shaft 301 and can rotate around the rotation center 3; when the first connecting rod 201 rotates around the rotation center 3, the second connecting rod 202 can extend into or out of the first connecting rod 201 along the length direction of the first connecting rod 201.

[0078] Further, one end of the first connecting rod 201 cooperates with the first slider 4, and the position close to the other end cooperates with the rotating shaft 301 arranged on the rotation center 3; the first connecting rod 201 is provided with a connecting rod groove 203 capable of accommodating the extension or retraction of the second connecting rod 202; the first connecting rod groove 203 is further provided with a first opening 204 in the length direction of the first connecting rod 201, which is in the shape of a long strip.

[0079] Further, the first slider 4 is provided with a first guide column 401 matched with the first opening 204; when the first connecting rod 201 rotates around the rotation center 3, the first guide column 401 of the first slider 4 slides in the first opening 204 under the action of the first connecting rod 201. One end of the second connecting rod 202 is rotationally matched with the second slider 5, and the other end is provided with a second guide column 205; the second guide column 205 is matched with the first opening 204 of the first connecting rod 201; when the first connecting rod 201 rotates around the rotation center 3, the second guide column 205 of the second slider 5 slides in the first opening 204 under the action of the first connecting rod 201. The second connecting rod 202 is provided with a second opening 206 matched with the rotation shaft 301; the second opening 206 is a long strip opening arranged along the length direction of the second connecting rod 202.

[0080] In combination with the drawings, Figures 1 to 4 are the first and second schematic views of the transmission mechanism shaft side and the first and second schematic views of the transmission mechanism front view, from Figures 1 to 4 which can be seen, the main body of the transmission mechanism is a base 1, the connecting rod assembly 2 rotates around the rotation center 3 on the base 1, and the base 1 is further provided with a first slider 4 and a second slider 5 matched with both ends of the connecting rod assembly 2. The connecting rod assembly 2 rotates around the rotation center 3 on the base 1 to form a pendulum-like motion, and under the action of the connecting rod assembly 2, the movement trajectories of the first slider 4 and the second slider 5 are parallel. In addition, the base 1 is further provided with a first sliding groove 101 and a second sliding groove 102 corresponding to the first slider 4 and the second slider 5 respectively, and the first slider 4 and the second slider 5 form their movement trajectories under the action of the first sliding groove 101 and the second sliding groove 102.

[0081] Further, the connecting rod assembly 2 includes a first connecting rod 201 and a second connecting rod 202, wherein the first connecting rod 201 is matched with the rotation shaft 301 and rotates around the rotation center 3, Figure 1 , 3In FIGS. 4, the rotating shaft 301 and the rotating center 3 are marked at the same position, in actual application, a rotating shaft 301 is installed at the rotating center 3 for positioning the first connecting rod 201, in order to facilitate observation, the two are marked as a whole, the first connecting rod 201 is provided with a connecting rod groove 203 in the length direction of the first connecting rod 201 on the side facing the base 1, the second connecting rod 202 can extend into or out of the connecting rod groove 203 in the length direction of the first connecting rod 201 when the connecting rod assembly 2 rotates, the first connecting rod 201 is further provided with a first opening 204 in the length direction thereof, the first sliding block 4 is provided with a first guide column 401 matched with the first opening 204, when the connecting rod assembly 2 rotates, the first guide column 401 drives the first sliding block 4 to slide along the first sliding groove 101 under the action of the first opening 204, meanwhile, the second connecting rod 202 is provided with a second guide column 205 matched with the first opening 204, and the second guide column 205 drives the second sliding block 5 to slide along the first sliding groove 101 under the action of the first opening 204 when the connecting rod assembly 2 rotates, the second connecting rod 202 is further provided with a second opening 206 matched with the rotating shaft 301, the second opening 206 of the second connecting rod 202 also plays a guiding role when the second connecting rod 202 extends into or out of the first connecting rod 201 in the length direction of the first connecting rod 201, and also avoids the second connecting rod 202 from deviating from the connecting rod groove 203.

[0082] Figure 5 FIG. 1 is a schematic view of the first connecting rod 201 of the transmission mechanism of the present application, in Figure 5 FIG. 1 can be seen, the first connecting rod 201 is provided with a connecting rod groove 203 in the length direction, the connecting rod groove 203 cooperates with the second connecting rod 202 to form a channel for the second connecting rod 202 to slide in the first connecting rod 201, the first connecting rod 201 is further provided with a first opening 204, the first opening 204 cooperates with the first guide column 401 and the second guide column 205, in addition, the first connecting rod 201 is further provided with a rotating center 3 and a rotating shaft 301, in actual installation process, the rotating center 3 needs to pass through a rotating shaft 301, the first connecting rod 201 rotates around the rotating shaft 301, in order to facilitate observation, the rotating shaft 301 is omitted in Figure 5 , and the rotating center 3 and the rotating shaft 301 are marked together.

[0083] Figure 6 FIG. 2 is a schematic view of the second connecting rod 202 of the transmission mechanism of the present application, in Figure 6 FIG. 2 can be seen, the second connecting rod 202 is provided with a second opening 206 and a second guide column 205, the second opening 206 cooperates with the rotating shaft 301 to form a guide for the second connecting rod 202 to extend into or out of the first connecting rod 201, the second guide column 205 cooperates with the first opening 204 of the first connecting rod 201, the other end of the second connecting rod 202 cooperates with the second sliding block 5, from Figure 6As can be seen, the second connecting rod 202 and the second slider 5 are in a rotational fit.

[0084] Example 2

[0085] like Figures 1 to 9 As shown, the transmission mechanism described in this embodiment includes a base 1; a connecting rod assembly 2, which is rotatable about a rotation center 3; a drive unit connected to the connecting rod assembly 2; and a first slider 4, which is movably disposed on the connecting rod assembly 2 and can slide within a groove in the base 1. The drive unit drives the connecting rod assembly 2 to rotate about the rotation center 3, and in conjunction with the sliding of the first slider 4 on the connecting rod assembly 2, defines the sliding trajectory of the first slider 4 within the groove in the base 1.

[0086] Example 3

[0087] like Figures 1 to 9 As shown, this embodiment is based on the above embodiment two. The transmission mechanism further includes a second slider 5, which is movably disposed on the connecting rod assembly 2 and can slide within the groove of the base 1. The driving unit drives the connecting rod assembly 2 to rotate around the rotation center 3, and in conjunction with the sliding of the second slider 5 on the connecting rod assembly 2, defines the sliding trajectory of the second slider 5 within the groove of the base 1. The base 1 includes a first groove 101 and a second groove 102. The first slider 4 and the second slider 5 are respectively slidably disposed corresponding to the first groove 101 and the second groove 102.

[0088] Furthermore, the linkage assembly 2 includes a first linkage 201 and a second linkage 202; the first linkage 201 cooperates with the rotation shaft 301 and can rotate around the rotation center 3; when the first linkage 201 rotates around the rotation center 3, the second linkage 202 can extend into or out of the first linkage 201 along the length direction of the first linkage 201.

[0089] Furthermore, one end of the first connecting rod 201 engages with the first slider 4, and the position near the other end engages with the rotation shaft 301 located at the rotation center 3; the first connecting rod 201 is provided with a connecting rod groove 203 that can at least accommodate the second connecting rod 202 extending into or out of it; the connecting rod groove 203 of the first connecting rod 201 is also provided with a first elongated opening 204 that is arranged along the length direction of the first connecting rod 201.

[0090] Further, the first slider 4 is provided with a first guide column 401 matched with the first opening 204; when the first connecting rod 201 rotates around the rotation center 3, the first guide column 401 of the first slider 4 slides in the first opening 204 under the action of the first connecting rod 201. One end of the second connecting rod 202 is rotationally matched with the second slider 5, and the other end is provided with a second guide column 205; the second guide column 205 is matched with the first opening 204 of the first connecting rod 201; when the first connecting rod 201 rotates around the rotation center 3, the second guide column 205 of the second slider 5 slides in the first opening 204 under the action of the first connecting rod 201. The second connecting rod 202 is provided with a second opening 206 matched with the rotation shaft 301; the second opening 206 is a long strip opening arranged along the length direction of the second connecting rod 202.

[0091] In combination with the drawings, Figures 1 to 4 are the first and second schematic views of the transmission mechanism shaft side and the first and second schematic views of the transmission mechanism front view, from Figures 1 to 4 It can be seen that the main body of the transmission mechanism is a base 1, the connecting rod assembly 2 rotates around the rotation center 3 on the base 1, the base 1 is also provided with a first slider 4 and a second slider 5 matched with both ends of the connecting rod assembly 2, the connecting rod assembly 2 rotates around the rotation center 3 on the base 1 to form a pendulum-like motion, under the action of the connecting rod assembly 2, the movement trajectories of the first slider 4 and the second slider 5 are parallel, in addition, the base 1 is also provided with a first sliding groove 101 and a second sliding groove 102 corresponding to the first slider 4 and the second slider 5 respectively, under the action of the first sliding groove 101 and the second sliding groove 102, the first slider 4 and the second slider 5 form their movement trajectories.

[0092] Further, the connecting rod assembly 2 includes a first connecting rod 201 and a second connecting rod 202, wherein the first connecting rod 201 is matched with the rotation shaft 301 and rotates around the rotation center 3, Figure 1 , 3In section 4, the rotating shaft 301 and the rotation center 3 are marked at the same position. In practical applications, a rotating shaft 301 is installed at the rotation center 3 to position the first connecting rod 201. For ease of observation, the two are marked as a single unit. The first connecting rod 201 faces the base 1 and has a connecting rod groove 203 along its length. When the connecting rod assembly 2 rotates, the second connecting rod 202 can extend into or out of the first connecting rod 201 within the range of the connecting rod groove 203 along its length. The first connecting rod 201 also has a first opening 204 along its length. The first slider 4 has a first guide post 401 that mates with the first opening 204. When the connecting rod assembly 2 rotates, the first guide post 401, under the action of the first opening 204, drives the first slider 4 to slide along the first slide groove 101. At the same time, the second connecting rod 202 is provided with a second guide post 205 that cooperates with the first opening 204. Similarly, when the connecting rod assembly 2 rotates, the second guide post 205, under the action of the first opening 204, drives the second slider 5 to slide along the first slide groove 101. The second connecting rod 202 is also provided with a second opening 206 that cooperates with the rotating shaft 301. When the second connecting rod 202 extends into or out of the first connecting rod 201 along its length, the second opening 206 of the second connecting rod 202 also plays a guiding role, and at the same time, it prevents the second connecting rod 202 from deviating from the connecting rod groove 203.

[0093] Figure 5 This is a schematic diagram of the first link 201 of the transmission mechanism of the present invention. Figure 5 As can be seen, the first connecting rod 201 has a connecting rod groove 203 along its length. The connecting rod groove 203 cooperates with the second connecting rod 202 to form a channel for the second connecting rod 202 to slide within the first connecting rod 201. The first connecting rod 201 also has a first opening 204, which cooperates with the first guide post 401 and the second guide post 205. In addition, the first connecting rod 201 also has a rotation center 3 and a rotation shaft 301. During actual installation, the rotation center 3 needs to pass through a rotation shaft 301, and the first connecting rod 201 rotates around the rotation shaft 301. For ease of observation, Figure 5 The rotation axis 301 is omitted, and the rotation center 3 and the rotation axis 301 are labeled together.

[0094] Figure 6 This is a schematic diagram of the second link 202 of the transmission mechanism of the present invention. Figure 6 As can be seen, the second connecting rod 202 is provided with a second opening 206 and a second guide post 205. The second opening 206 cooperates with the rotating shaft 301 to form a guide for the second connecting rod 202 to extend into and out of the first connecting rod 201. The second guide post 205 cooperates with the first opening 204 of the first connecting rod 201. The other end of the second connecting rod 202 cooperates with the second slider 5. Figure 6As can be seen, the second connecting rod 202 and the second slider 5 are in a rotational fit.

[0095] Example 4

[0096] like Figures 1 to 9 As shown, this embodiment is based on any one of the embodiments one to three above. In this embodiment, the sliding motion of the first slider 4 and the second slider 5 in the first slide groove 101 and the second slide groove 102 is linear motion.

[0097] Example 5

[0098] like Figures 1 to 9 As shown, this embodiment is based on the above embodiment four. The transmission mechanism described in this embodiment has the first slide groove 101 and the second slide groove 102 arranged in parallel.

[0099] Example 6

[0100] like Figures 1 to 9 As shown, this embodiment is based on any one of the embodiments one to five described above. The transmission mechanism described in this embodiment has its rotation center 3 disposed on the base 1.

[0101] Example 7

[0102] like Figures 1 to 9 As shown, this embodiment is based on any one of the embodiments from Embodiment 1 to Embodiment 6 described above. The transmission mechanism described in this embodiment has a first limiting part 103 and a second limiting part 104 provided on the base 1; the first slider 4 can slide in the area formed between the first limiting part 103 and the second limiting part 104.

[0103] Example 8

[0104] like Figures 7 to 10As shown, the transmission mechanism described in the embodiment is based on any one of the above embodiments one to seven, one end of the second slider 5 cooperates with the second connecting rod 202, and the installation part 501 is arranged near the other end; the installation part 501 is a cylindrical structure with a central through hole; the rotating part 6 cooperates with the through hole in the center of the installation part 501. Further, the second slider 5 is also provided with the first baffle 502 extending towards one side of the installation part 501; the rotating part 6 is provided with the second baffle 601 extending towards one side of the installation part 501; the torsional spring 7 is arranged outside the installation part 501 and cooperates with the first baffle 502 and the second baffle 601; through the cooperation of the base 1 and the connecting rod assembly 2, the movement track of the two sliders connected with the connecting rod assembly 2 is limited, which ensures that the movement power of the first slider 4 is transmitted to the second slider 5 under the action of the connecting rod assembly 2, and the movement tracks of the two sliders are parallel, and the transmission mechanism has the characteristics of small space occupation and small movement amplitude; the rotating part 6 and the torsional spring 7 are arranged at one end of the second slider 5, the torsional spring 7 cooperates with the guide part 105 arranged inside the base to convert the linear motion of the slider into rotary motion, which improves the adaptation range of the device and expands the space for the application of the device in products.

[0105] With reference to the drawings, Figure 7 and Figure 8 are schematic diagrams of the first slider 4 and the second slider 5 of the transmission mechanism of the present application, from Figure 7 and Figure 8 it can be seen that the first slider 4 is provided with the first guide column 401, and the second slider 5 is provided with the rear installation part 501 and the first baffle 502.

[0106] Figure 9 and Figure 10 are schematic diagrams of the rotating part 6 and the guide part 105 of the transmission mechanism of the present application, from Figure 9 it can be seen that the rotating part 6 is provided with the second baffle 601, which cooperates with the first baffle 502 of the second slider 5 to cooperate with the torsional spring 7, the torsional spring 7 cooperates with the guide part 105 arranged inside the base 1, the torsional spring 7 and the guide part 105 realize the switching between linear motion and rotary motion, the guide part 105 is an arc-shaped guide structure, the torsional spring 7 provides a restoring force after the linear motion is converted into rotary motion, realizing the conversion of the linear motion of the second slider 5 into the rotary motion of the rotating part 6.

[0107] The second slider 5 is rotatably connected with the second connecting rod 202 at one end, and is provided with a mounting portion 501 at the other end. The mounting portion 501 is a hollow cylindrical structure, and is provided with a rotating portion 6 matched with the mounting portion 501. The mounting portion 501 is provided with a first baffle 502, and the rotating portion 6 is provided with a second baffle 601. The outer side of the mounting portion 501 is provided with a torsion spring 7 matched with the first baffle 502 and the second baffle 601. Figure 10 As can be seen, the torsion spring 7 is matched with a guide portion 105 arranged on the inner side of the base. The torsion spring 7 and the guide portion 105 realize switching between linear motion and rotary motion. The guide portion 105 is an arc-shaped guide structure. The torsion spring 7 provides a restoring force after the linear motion is converted into rotary motion. This arrangement makes the rotary motion of the connecting rod assembly 2 converted into linear motion of the second slider 5, and then the linear motion of the second slider 5 is converted into rotary motion of the rotating portion 6, thereby providing various application conditions of the transmission mechanism.

[0108] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not described in detail in order not to obscure the understanding of the present specification.

[0109] In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features of different embodiments are also meant to be within the scope of the present application and form different embodiments. For example, in the above embodiments, those skilled in the art can use in a combined manner according to the known technical solutions and the technical problems to be solved by the present application.

[0110] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. A transmission mechanism characterised in that: include The base (1) is provided with a first limiting part (103) and a second limiting part (104); Linkage assembly (2), including first link (201) and second link (202); The first connecting rod (201) cooperates with the rotating shaft (301) and can rotate about a rotation center (3); When the first link (201) rotates around the rotation center (3), the second link (202) can extend into or out of the first link (201) along the length direction of the first link (201); The drive unit is connected to the linkage assembly (2); The first slider (4) is movably disposed on the connecting rod assembly (2) and can slide within the groove formed between the first limiting part (103) and the second limiting part (104); The driving unit drives the connecting rod assembly (2) to rotate around the rotation center (3), and in conjunction with the sliding of the first slider (4) on the connecting rod assembly (2), the sliding trajectory of the first slider (4) in the groove of the base (1) is defined.

2. The transmission mechanism according to claim 1, characterized in that: Also includes The second slider (5) is movably mounted on the connecting rod assembly (2) and can slide within the groove of the base (1); The drive unit drives the linkage assembly (2) to rotate around the rotation center (3), and in conjunction with the sliding of the second slider (5) on the linkage assembly (2), defines the sliding trajectory of the second slider (5) in the groove of the base (1).

3. The transmission mechanism according to claim 2, characterized in that: The base (1) includes a first groove (101) and a second groove (102); The first slider (4) and the second slider (5) are respectively slidably arranged corresponding to the first slide groove (101) and the second slide groove (102).

4. A transmission mechanism according to claim 3, characterized in that: The sliding motion of the first slider (4) and the second slider (5) within the first groove (101) and the second groove (102) is linear motion.

5. A transmission mechanism according to claim 4, characterized in that: The first slide (101) and the second slide (102) are arranged in parallel.

6. A transmission mechanism according to claim 5, characterized in that: The rotation center (3) is located on the base (1).

7. A transmission mechanism according to any one of claims 1-5, characterized in that: One end of the first connecting rod (201) engages with the first slider (4), and the position near the other end engages with the rotating shaft (301) located at the rotation center (3); The first link (201) is provided with a link groove (203) that can at least accommodate the second link (202) to extend into or out of; The first connecting rod (201) is further provided with a first opening (204) in the connecting rod groove (203) that is elongated along the length of the first connecting rod (201).

8. A transmission mechanism according to claim 7, characterized in that: The first slider (4) is provided with a first guide post (401) that cooperates with the first opening (204); When the first connecting rod (201) rotates around the rotation center (3), the first guide post (401) of the first slider (4) slides in the first opening (204) under the action of the first connecting rod (201).

9. A transmission mechanism according to claim 8, characterized in that: One end of the second connecting rod (202) is rotatably engaged with the second slider (5), and the other end is provided with a second guide post (205); The second guide post (205) engages with the first opening (204) of the first connecting rod (201); When the first connecting rod (201) rotates around the rotation center (3), the second guide post (205) of the second slider (5) slides in the first opening (204) under the action of the first connecting rod (201).

10. A transmission mechanism according to claim 9, characterized in that: The second connecting rod (202) is provided with a second opening (206) that mates with the rotating shaft (301); The second opening (206) is a long strip opening provided along the length direction of the second connecting rod (202).

11. A transmission mechanism according to any one of claims 8-10, characterized in that: One end of the second slider (5) is engaged with the second connecting rod (202), and a mounting part (501) is provided near the other end; The mounting part (501) is a cylindrical structure with a central through hole.

12. A transmission mechanism according to claim 11, characterized in that: The rotating part (6) engages with the through hole at the center of the mounting part (501).

13. A transmission mechanism according to claim 12, characterized in that: The second slider (5) is also provided with a first baffle (502) extending toward the mounting part (501); The rotating part (6) is provided with a second baffle (601) extending toward the mounting part (501); A torsion spring (7) is disposed on the outside of the mounting portion (501) and cooperates with the first baffle (502) and the second baffle (601).

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