A moving mechanism with synchronous belt relay drive

Abstract

The present invention provides a moving mechanism with synchronous belt relay drive, which includes at least two groups of synchronous belt transmission units, a moving body and a switching unit. The at least two groups of synchronous belt transmission units are arranged in sequence along the transmission direction. The switching unit is arranged between two adjacent groups of synchronous belt transmission units. The switching unit is used to separate the moving body from the current synchronous belt unit and connect the moving body to the next group of synchronous belt transmission units in the advancing direction of the moving body. The beneficial effects of the present invention are as follows: It provides a mechanism that combines multiple synchronous belt drive mechanisms with appropriate lengths in a relay manner to form a longer transportation journey. This mechanism has the advantages of reasonable structure, high transmission displacement accuracy, and convenient installation and maintenance. It overcomes the limitation of the moving distance of the synchronous belt at a relatively low cost and has good market prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of sliding door mechanisms, and more particularly to a moving mechanism with synchronous belt relay drive. Background Art

[0002] In the existing sliding door mechanism using synchronous belt drive, there is a power source that provides torque, which is mostly a motor in most cases. The power source rotates a synchronous belt pulley, and then transfers the motion through the synchronous belt to a synchronous belt pulley or a synchronous belt clip carried by the synchronous belt. The door body to be moved is usually connected to the synchronous belt clip and is pulled by the synchronous belt clip to move along the direction of the synchronous belt.

[0003] However, through synchronous belt drive, especially the synchronous belt drive applied in the existing sliding door mechanism, it cannot support long-distance drive. Generally, in the existing sliding door mechanism, a door body is only connected to one synchronous belt. Therefore, the length of the synchronous belt must increase as the preset moving distance of the door body increases. The structural characteristics of the synchronous belt itself will cause jitter during the drive process, and the longer the synchronous belt, the greater the jitter amplitude. Excessive jitter will quickly reduce the service life of the synchronous belt. In addition, as the synchronous belt is further lengthened, the tensioning device equipped with the synchronous belt also needs to be strengthened. After the tension is increased, the shafts and shaft seats of the synchronous belt and the synchronous belt pulley need to be strengthened, which results in a much larger increase in the overall volume of the entire drive mechanism than the volume increment of only the synchronous belt itself.

[0004] Therefore, the existing sliding door mechanism with synchronous belt drive cannot support long-distance sliding door actions. However, considering the advantages of the synchronous belt mechanism itself, such as low cost, accurate transmission displacement, convenient installation and maintenance, etc., a synchronous belt drive mechanism for sliding door mechanisms that can achieve a longer span is needed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: aiming at the deficiencies in the prior art, to provide a moving mechanism with synchronous belt relay drive that has a reasonable structure and is easy to implement.

[0006] To solve the above technical problem, the technical solution adopted by the present invention is: a moving mechanism with synchronous belt relay drive, including at least two groups of synchronous belt transmission units, a moving body, and a switching unit. At least two groups of synchronous belt transmission units are arranged in sequence along the transmission direction. The switching unit is arranged between two adjacent groups of synchronous belt transmission units. The switching unit is used to separate the moving body from the current synchronous belt unit and connect the moving body to the next group of synchronous belt transmission units in the advancing direction of the moving body.

[0007] Furthermore, the synchronous belt transmission unit includes a power source, a driving wheel, a driven wheel and a synchronous belt, the power source is connected to the driving wheel, the synchronous belt is wound around the driving wheel and the driven wheel, the synchronous belt is provided with a synchronous belt clamp, and the moving body is detachably connected to the synchronous belt clamp.

[0008] Furthermore, the mobile body is provided with a latch assembly, which includes a latch and a latch sleeve, the latch tube is fixedly connected to the mobile body, the latch can be movably inserted into the latch tube, and the synchronous belt clamp is provided with a pin hole, and the mobile body is connected to the synchronous belt by inserting the latch into the pin hole of the synchronous belt clamp; the mobile body is disconnected from the synchronous belt by pulling the latch out of the pin hole of the synchronous belt clamp.

[0009] Furthermore, the latch includes a latch body and a head, the latch head is arranged at one end of the latch body close to the synchronous belt, and one end of the latch body away from the synchronous belt is connected to a hook portion through a connecting rod.

[0010] Furthermore, the latch assembly also includes a latch spring, which is disposed in the latch tube and is used to provide the latch with a pop-up state.

[0011] Furthermore, a pin body of the pin is provided with a limiting structure, and the limiting structure is used to prevent the pin body from being separated from the pin tube.

[0012] Furthermore, the switching unit includes a switching power source and a latch paddle, and the switching power source is used to drive the latch paddle to reciprocate along the latch insertion and extraction direction.

[0013] Furthermore, the switching power source is a linear motor, a cylinder or an electromagnet driver.

[0014] Furthermore, the moving body is a moving door.

[0015] Furthermore, the driving wheel is a toothed driving wheel, the driven wheel is a toothed driven wheel, and the synchronous belt is a toothed synchronous belt.

[0016] The beneficial effect of the present invention is that it provides a mechanism which combines multiple sections of synchronous belt transmission mechanisms of moderate lengths into a longer transport stroke. The mechanism has the advantages of reasonable structure, high transmission displacement accuracy, and convenient installation and maintenance. It overcomes the limitation of the moving distance of the synchronous belt at a relatively low cost and has a good market prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific structure of the present invention is described in detail below in conjunction with the accompanying drawings:

[0018] Figure 1Schematic diagram of the overall structure of the moving mechanism with synchronous belt relay drive according to the present invention;

[0019] Figure 2 Schematic diagram of the close-up structure of the synchronous belt transmission unit and the switching unit of the moving mechanism with synchronous belt relay drive according to the present invention;

[0020] Figure 3 Schematic diagram of the sectional structure of the first pin assembly of the present invention when the pin is not pulled out in the unloading area;

[0021] Figure 4 Schematic diagram of the sectional structure of the first pin assembly of the present invention when the pin is pulled out in the unloading area;

[0022] 1 - First synchronous belt transmission unit; 11 - First driving motor; 12 - First driving wheel; 13 - First synchronous belt; 14 - First driven wheel; 15 - First synchronous belt clip;

[0023] 2 - Second synchronous belt transmission unit; 21 - Second driving motor; 22 - Second driving wheel; 23 - Second synchronous belt; 24 - Second driven wheel; 25 - Second synchronous belt clip;

[0024] 3 - Moving body; 31 - First pin assembly; 311 - First pin sleeve; 312 - First pin; 3121 - First limiting structure; 3122 - First connecting rod; 3123 - First hook portion; 313 - First pin spring; 32 - Second pin assembly;

[0025] 4 - Switching unit; 41 - Unloading switching power source; 411 - Unloading pin dial; 42 - Loading switching power source; 421 - Loading pin dial. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0029] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and defined, the fact that the first feature is "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the fact that the first feature is "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The fact that the first feature is "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0031] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0032] Embodiment

[0033] Please refer to Figure 1 , a moving mechanism with synchronous belt relay drive, including at least two groups of synchronous belt transmission units, a moving body 3, and a switching unit 4. At least two groups of synchronous belt transmission units are arranged in sequence along the transmission direction. The switching unit 4 is arranged between two adjacent groups of synchronous belt transmission units. The switching unit 4 is used to separate the moving body from the current synchronous belt unit and connect the moving body 3 to the next group of synchronous belt transmission units in the advancing direction of the moving body. In this embodiment, the moving body is a moving door.

[0034] The synchronous belt transmission unit includes a power source, a driving wheel, a driven wheel, and a synchronous belt. The power source is connected to the driving wheel. The synchronous belt is wound around the driving wheel and the driven wheel. The synchronous belt is provided with a synchronous belt clip. The moving body is detachably connected to the synchronous belt clip.

[0035] The power source is a driving motor and its supporting power supply and control system. It can also provide power in other forms, or introduce power from other moving structures through a linkage transmission mechanism.

[0036] The driving motor can drive the driving wheel to rotate, and then drive the synchronous belt to rotate around the driving wheel and the driven wheel. The synchronous belt clip arranged on the synchronous belt can reciprocate along the length direction of the synchronous belt. The synchronous belt clip is a block-shaped structural member clamped on the synchronous belt. When the synchronous belt is reciprocally pulled, the synchronous belt clip will also move together. Preferably, the driving wheel is a toothed driving wheel, the driven wheel is a toothed driven wheel, and the synchronous belt is a toothed synchronous belt. The toothed synchronous belt meshes with the toothed driving wheel and the toothed driven wheel, which can effectively prevent the slipping phenomenon between the driving wheel and the synchronous belt and further ensure the transmission accuracy.

[0037] The mobile body is provided with a latch assembly, which includes a latch and a latch sleeve. The latch barrel is fixedly connected to the mobile body. The mobile body is provided with at least two latch assembly brackets, each of which is fixedly connected with a latch sleeve. The latch can be movably inserted into the latch barrel. The synchronous belt clamp is provided with a pin hole. The mobile body is connected to the synchronous belt by inserting the latch into the pin hole of the synchronous belt clamp; the mobile body is disconnected from the synchronous belt by pulling the latch out of the pin hole of the synchronous belt clamp.

[0038] The latch includes a latch body and a head, wherein the latch head is arranged at one end of the latch body close to the synchronous belt, and the end of the latch body away from the synchronous belt is connected to a hook via a connecting rod, and the connecting rod extends from the end of the latch sleeve away from the synchronous belt, so that the hook can be linked with the switching unit to control the movement of the latch.

[0039] The latch assembly also includes a latch spring, which is disposed in the latch barrel and is used to provide elastic force to put the latch in a pop-up state. In order to confine the latch spring in the latch barrel, an end cap is provided at one end of the latch barrel away from the synchronous belt, and the end cap is provided with an opening matching the size of the connecting rod. Since the latch spring is sleeved on the connecting rod, the diameter of the spring is larger than the diameter of the opening, thereby confining the spring in the latch barrel.

[0040] The bolt body of the bolt is provided with a limiting structure, and the limiting structure is used to prevent the bolt body from being separated from the bolt tube. In this embodiment, the bolt assembly bracket is provided with a through hole corresponding to the head of the bolt, and the diameter of the through hole is adapted to the bolt head. The diameter of the limiting structure of the bolt body is larger than the diameter of the through hole, thereby effectively preventing the bolt body from being separated from the bolt tube. During installation, an end cover is installed at one end of the bolt tube, and a bolt spring and a bolt are placed in the bolt tube in sequence. The connecting rod of the bolt is passed through the opening of the end cover, and the other end of the bolt tube is installed on the bolt assembly bracket. Finally, a hook is installed at the end of the connecting rod to complete the assembly of the bolt assembly.

[0041] The switching unit includes a switching power source and a latch paddle, and the switching power source is used to drive the latch paddle to reciprocate along the direction of the latch insertion and extraction. When the synchronous belt drives the mobile body to move into place, the hook of the latch enters the drivable range of the latch paddle of the switching unit. At this time, the power source drives the latch paddle to pull out, and the latch paddle can pull the head of the latch out of the pin hole of the synchronous belt clamp by pulling the hook, so that the mobile body is disconnected from the current synchronous belt clamp. Similarly, when the synchronous belt moves into place, the power source drives the latch paddle to insert, and the latch paddle can insert the head of the latch into the pin hole of the synchronous belt clamp by pushing the hook, so that the mobile body is connected to the current synchronous belt clamp.

[0042] In order to drive the latch paddle to reciprocate in the plugging and unplugging direction, preferably, the switching power source is a linear motor, a cylinder or an electromagnet driver.

[0043] From the above description, it can be seen that the beneficial effect of the present invention is that it provides a mechanism that combines multiple sections of synchronous belt transmission mechanisms with moderate lengths into a longer transport journey. The mechanism has the advantages of reasonable structure, high transmission displacement accuracy, and easy installation and maintenance. It overcomes the limitation of the moving distance of the synchronous belt at a relatively low cost and has a good market prospect.

[0044] Implementation Example

[0045] See also Figures 2 to 4 , taking two sets of synchronous belt transmission units as an example to illustrate the working process of the mobile mechanism of the relay transmission, in this embodiment, the mobile mechanism is composed of a first synchronous belt transmission unit 1 and a second synchronous belt transmission unit 2, the first synchronous belt transmission unit 1 includes a first driving motor 11, a first driving wheel 12, a first synchronous belt 13 and a first driven wheel 14, the first driving motor 11 is connected to the first driving wheel 12, the first synchronous belt 13 is wound around the first driving wheel 12 and the first driven wheel 14, and a first synchronous belt clamp 15 is provided on the first synchronous belt 13; the second synchronous belt transmission unit 1 includes a second driving motor 21, a second driving wheel 22, a second synchronous belt 23 and a second driven wheel 24, the second driving motor 21 is connected to the second driving wheel 22, the second synchronous belt 23 is wound around the second driving wheel 22 and the second driven wheel 24, and a second synchronous belt clamp 25 is provided on the second synchronous belt 23.

[0046] The first synchronous belt conveying unit 1 and the second synchronous belt conveying unit 2 are arranged in sequence along the moving direction, and a switching unit 4 is provided between the first synchronous belt conveying unit 1 and the second synchronous belt conveying unit 2. The moving door as the moving body 3 is provided with a first latch assembly 31 and a second latch assembly 32. The first latch assembly 31 is connected to the moving door through a first bracket, and the second latch assembly 32 is connected to the moving door through a second bracket. The first bracket and the second bracket are arranged in sequence along the length direction of the moving door.

[0047] The first latch assembly 31 includes a first latch sleeve 311 and a first latch 312. The first latch sleeve 311 is fixedly connected to the first bracket. The first latch 312 can reciprocate along the first latch sleeve 311. A first latch spring 313 is also provided in the first latch sleeve 311. The first latch spring 313 can provide elastic force to keep the first latch in an inserted state when not subject to external force. In order to prevent the first latch 312 from slipping out of the first latch sleeve 311, the first latch 312 is provided with a first limiting structure 3121. The tail of the first latch 312 is connected to a first hook 3123 through a first connecting rod 3122, and can be moved by the latch paddle of the switching unit. The first hook 3123 puts the first latch 312 in a pulled-out state or an inserted state; the second latch assembly 32 includes a second latch and a second latch sleeve, the second latch sleeve is fixedly connected to the second bracket, the second latch can reciprocate along the second latch sleeve, and a second latch spring is also provided in the second latch sleeve, the second latch spring can provide elastic force to put the second latch in an inserted state when not subject to external force, in order to prevent the second latch from falling out of the second latch sleeve, the second latch is provided with a second limiting structure, the tail of the second latch is connected to the second hook through a second connecting rod, and the second hook can be moved by the latch paddle of the switching unit to put the second latch in a pulled-out state or an inserted state.

[0048] When the moving door is in the initial state, the first synchronous belt clip 15 on the first synchronous belt 13 is connected to the first latch assembly 31 through the first latch. The first driving motor 11 drives the first synchronous belt 13 to drive the moving door to move. When the first latch assembly 31 of the moving door moves to the unloading position of the switching unit 4, the unloading switching power source 41 of the switching unit 4 drives the unloading latch dial 411 to pull out the first latch of the first latch assembly 31 from the first synchronous belt clip 15. At this time, the moving door is disconnected from the first synchronous belt 13. While the unloading switching power source 41 of the switching unit 4 drives the unloading latch dial 411 to pull out the first latch from the first synchronous belt clip 15, the loading switching power source 42 of the switching unit 4 drives the loading latch dial 421 to lift the second latch of the second latch assembly 32. Since the first latch assembly 31 and the second latch assembly 32 move with the moving door simultaneously, the second bracket will reach the loading position of the switching unit first. To prevent the second latch from interfering with the second synchronous belt clip 25, the second driving motor 21 of the second synchronous belt transmission unit 2 will pre-drive the second synchronous belt clip 25 to move a certain distance in the transmission direction, so that the second synchronous belt clip 25 moves away from the loading position, thereby achieving avoidance of the second latch. When the second latch assembly 32 moves to the loading position and the second latch is lifted by the loading latch dial 421, the second driving motor 21 will move the second synchronous belt clip 25 back to the loading position. When the second synchronous belt clip 25 returns to the loading position, the loading switching power source 42 of the switching unit 4 drives the loading latch dial 421 to move towards the synchronous belt direction, thereby inserting the second latch into the pin hole of the second synchronous belt clip 25, realizing the connection between the second latch assembly 32 of the moving door and the second synchronous belt transmission unit 2. Next, the second driving motor 21 will drive the second synchronous belt 23 to drive the second synchronous belt clip 25 to move in the transmission direction, thereby realizing the relay transmission of the moving door.

[0049] It should be noted that for the convenience of description, the unloading position and the loading position of the switching unit are named according to the order in which they are encountered successively in the moving direction of the moving door. For example: when the moving door moves from left to right, the left side of the switching unit is the unloading position and the right side is the loading position; when the moving door moves from right to left, the left side of the switching unit is the loading position and the right side is the unloading position.

[0050] Similarly, when there are three or more groups of synchronous belt transmission units, three or more groups of latch assemblies can be correspondingly arranged on the moving door to adapt to the corresponding synchronous belt transmission units.

[0051] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A moving mechanism with synchronous belt relay drive, characterized in that: It includes at least two sets of synchronous belt conveying units, a moving body and a switching unit. The at least two sets of synchronous belt conveying units are arranged in sequence along the conveying direction. The switching unit is arranged between two adjacent sets of synchronous belt conveying units. The switching unit is used to separate the moving body from the current synchronous belt unit and connect the moving body to the next set of synchronous belt conveying units in the advancing direction of the moving body. The synchronous belt conveying unit includes a power source, a driving wheel, a driven wheel and a synchronous belt. The power source is connected to the driving wheel. The synchronous belt is wound around the driving wheel and the driven wheel. The synchronous belt is provided with a synchronous belt clip. The moving body is detachably connected to the synchronous belt clip. The moving body is provided with a pin assembly. The pin assembly includes a pin and a pin sleeve. The pin sleeve is fixedly connected to the moving body. The pin is movably inserted into the pin sleeve. The synchronous belt clip is provided with a pin hole. The moving body is connected to the synchronous belt by inserting the pin into the pin hole of the synchronous belt clip. The moving body is disconnected from the synchronous belt by pulling the pin out of the pin hole of the synchronous belt clip. The pin includes a pin body and a head. The pin head is arranged at one end of the pin body close to the synchronous belt. A hook portion is connected to the end of the pin body far from the synchronous belt through a connecting rod. The switching unit includes a switching power source and a pin dial. The switching power source is used to drive the pin dial to reciprocate along the pin inserting / extracting direction.

2. The moving mechanism with synchronous belt relay drive according to claim 1, characterized in that: The pin assembly further includes a pin spring. The pin spring is arranged in the pin sleeve. The pin spring is used to provide a state in which the pin is in a popped-up state.

3. The moving mechanism with synchronous belt relay drive according to claim 2, characterized in that: The pin body of the pin is provided with a limiting structure. The limiting structure is used to prevent the pin body from detaching from the pin sleeve.

4. The moving mechanism with synchronous belt relay drive according to claim 3, characterized in that: The switching power source is a linear motor, a cylinder or an electromagnet driver.

5. The moving mechanism with synchronous belt relay drive according to claim 4, characterized in that: The moving body is a moving door.

6. The moving mechanism with synchronous belt relay drive according to claim 5, characterized in that: The driving wheel is a toothed driving wheel, the driven wheel is a toothed driven wheel, and the synchronous belt is a toothed synchronous belt.

Images