Telescopic transmission mechanism

Abstract

The utility model discloses a telescopic transmission mechanism which comprises a first support and a second support, and the second support is arranged at one end of the first support in a sliding mode. The first fixing roller and the second fixing roller are arranged at the two ends of the first support respectively; the first moving roller and the second moving roller are arranged at the two ends of the second support respectively, and the second moving roller is located between the first moving roller and the second fixed roller in the vertical direction; and the belt sequentially bypasses the first fixed roller, the second fixed roller, the second moving roller and the first moving roller, and the second moving roller is located outside a ring of the belt. According to the telescopic conveying mechanism, due to the fact that the distance between the first moving roller and the second moving roller is fixed, the second support slides on the first support, the first moving roller and the second moving roller drive the belt to move transversely, stretching and retracting of the conveying mechanism are achieved, passing is convenient, and a conveying route is changed.

Description

Technical Field

[0001] This utility model relates to the field of material conveying devices, and in particular to a retractable transmission mechanism. Background Technology

[0002] In the packaging industry, belt conveyors are typically used on production lines to connect various functional units for continuous material transport. However, on some longer production lines, the conveyor belt may be laid out around the entire workshop, causing disruptions to operator and material flow paths and creating obstructions. To address this issue, a common practice is to install temporary ladder structures (commonly known as "bridges") above the conveyor belt, allowing operators to safely cross it without having to traverse the entire production line.

[0003] While this "bridge" design can alleviate traffic inconvenience to some extent, it also has some inherent limitations. For example, the stability of the ladder may be insufficient, especially when the conveyor belt is running at high speed; in addition, the ladder may pose a safety hazard to operators, especially at night or in poor lighting conditions. Therefore, developing a safer, more efficient, and more convenient solution has become an important issue in the field. Utility Model Content

[0004] This application provides a scalable transmission mechanism that solves the technical problem that transmission mechanisms in the prior art easily cause passage obstacles.

[0005] This application provides a scalable transmission mechanism, including:

[0006] A first bracket and a second bracket, wherein the second bracket is slidably disposed at one end of the first bracket;

[0007] The first fixed roller and the second fixed roller are respectively disposed at both ends of the first bracket;

[0008] The first movable roller and the second movable roller are respectively disposed at both ends of the second bracket, and the second movable roller is located between the first movable roller and the second fixed roller in the vertical direction.

[0009] The belt passes sequentially around a first fixed roller, a second fixed roller, a second movable roller, and a first movable roller, with the second movable roller located outside the belt loop.

[0010] In some embodiments, the first support is further provided with a third fixed roller, which is located between the first fixed roller and the second fixed roller, and is located outside the belt loop.

[0011] In some embodiments, the third fixed roller is fixedly mounted on the first support by a tensioner.

[0012] In some embodiments, a motor is fixedly mounted on the first bracket, and the output shaft of the motor is connected to the first fixed roller via a chain drive.

[0013] In some embodiments, a manual pusher is fixedly provided at the end of the second bracket away from the first bracket.

[0014] In some embodiments, the manual pusher includes a fixed frame and a push rod. The fixed frame consists of two symmetrically mounted on both sides of the end of the second support. The push rod is fixedly disposed between the upper ends of the two fixed frames. A strip mounting plate is provided at the lower end of the fixed frame. One end of the strip mounting plate is connected to the end of the second support, and a first moving roller is mounted on the other end of the strip mounting plate.

[0015] In some embodiments, a first leg is fixedly provided at the end of the second bracket, and the first leg is fixedly provided directly below the connection of the strip mounting plate.

[0016] In some embodiments, the strip mounting plate is rotatably connected to the second bracket, a second leg is rotatably connected to the strip mounting plate, a connecting rod is rotatably connected between the first leg and the second leg, and an adjusting foot is provided at the lower end of the second leg.

[0017] In some embodiments, the axes of the first fixed roller and the second movable roller are located on the same plane, the diameter of the second movable roller is smaller than the diameter of the first fixed roller, the uppermost end of the second movable roller is located below the plane formed by the uppermost ends of the first fixed roller and the first movable roller, and the lowermost end of the second movable roller is located above the plane of the lowermost travel of the first fixed roller and the second fixed roller.

[0018] In some embodiments, the second bracket is mounted on the first bracket via a slide rail.

[0019] The beneficial effects of this application are as follows:

[0020] The retractable transmission mechanism provided by this utility model has a fixed distance between the first moving roller and the second moving roller. The first moving roller and the second moving roller slide on the first support through the second support. The first moving roller and the second moving roller drive the belt to move laterally, which realizes the extension and retraction of the transmission mechanism, which facilitates passage and changes in the conveying route. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0022] Figure 1 A perspective view of a retractable transmission mechanism provided in this application;

[0023] Figure 2 A side view of a retractable transmission mechanism provided for this application;

[0024] Figure 3 A schematic diagram of the belt telescopic principle of a telescopic transmission mechanism provided in this application;

[0025] Figure 4 A schematic diagram of the manual pusher in a retractable transmission mechanism provided in this application;

[0026] Figure 5 A schematic diagram of the adjustment structure of the strip mounting plate in a retractable transmission mechanism provided in this application;

[0027] Wherein, 10-first support; 11-first fixed roller; 12-second fixed roller; 13-third fixed roller; 14-motor;

[0028] 20-Second support; 21-First moving roller; 22-Second moving roller; 23-First support leg; 24-Second support leg; 25-Adjusting foot; 26-Connecting rod;

[0029] 30 - Belt;

[0030] 40 - Manual push handle; 41 - Fixing bracket; 42 - Push rod; 43 - Strip mounting plate. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0034] This application provides a scalable transmission mechanism, which solves the technical problem that transmission mechanisms in the prior art are prone to causing passage obstacles.

[0035] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0036] like Figures 1-3 As shown, this application provides a scalable transmission mechanism, including:

[0037] A first bracket 10 and a second bracket 20, wherein the second bracket 20 is mounted on the first bracket 10 via a slide rail and the second bracket 20 is slidably disposed at one end of the first bracket 10;

[0038] The first fixed roller 11 and the second fixed roller 12 are respectively disposed at both ends of the first bracket 10;

[0039] The first moving roller 21 and the second moving roller 22 are respectively disposed at both ends of the second bracket 20, and the second moving roller 22 is located between the first moving roller 21 and the second fixed roller 12 in the vertical direction.

[0040] The belt 30 passes sequentially around the first fixed roller 11, the second fixed roller 12, the second movable roller 22 and the first movable roller 21, with the second movable roller 22 located outside the belt 30.

[0041] Since the distance between the first moving roller 21 and the second moving roller 22 is fixed, the first moving roller 21 and the second moving roller 22 slide on the first support 10 through the second support 20, and drive the belt 30 to move laterally, realizing the extension and retraction of the transmission mechanism, which facilitates passage and changes in the conveying route.

[0042] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0043] The first support 10 is also provided with a third fixed roller 13, which is located between the first fixed roller 11 and the second fixed roller 12. The third fixed roller 13 is located outside the belt 30 and is fixedly mounted on the first support 10 by a tensioner.

[0044] The preferred third fixed roller 13 has its height adjusted by a tensioner. The tensioner is a prior art technology directly applied in this embodiment, so it will not be described again here or in the accompanying drawings. It supports the belt 30 and prevents the belt 30 from sagging and rubbing against the second moving roller 22.

[0045] A motor 14 is fixedly mounted on the first bracket 10, and the output shaft of the motor 14 is connected to the first fixed roller 11 via chain drive.

[0046] Furthermore, such as Figure 4 As shown, a manual pusher 40 is fixedly installed at the end of the second support 20 away from the first support 10. The manual pusher 40 includes a fixed frame 41 and a push rod 42. The fixed frame 41 consists of two symmetrically installed on both sides of the end of the second support 20. The push rod 42 is fixedly installed between the upper ends of the two fixed frames 41. A strip mounting plate 43 is provided at the lower end of the fixed frame 41. One end of the strip mounting plate 43 is connected to the end of the second support 20, and the other end of the strip mounting plate 43 is equipped with a first moving roller 21.

[0047] The strip mounting plate 43 reduces the length of the second bracket 20, saving materials. The position of the second bracket 20 on the first bracket 10 can be adjusted by manually pushing the handle 40 to realize the extension and retraction of the transmission mechanism.

[0048] like Figure 5 As shown, a first leg 23 is fixedly provided at the end of the second bracket 20, and the first leg 23 is fixedly provided directly below the connection between the strip mounting plate 43 and the second bracket;

[0049] The strip mounting plate 43 is rotatably connected to the second bracket 20. A second support leg 24 is rotatably connected to the strip mounting plate 43. A connecting rod 26 is rotatably connected between the first support leg 23 and the second support leg 24. An adjusting foot 25 is provided at the lower end of the second support leg 24.

[0050] The first leg 23 supports the second bracket 20, preventing it from falling after being pulled out of the first bracket 10 and affecting its service life. When the height of the transmission mechanism is inconsistent with that of the working unit to be connected, the first leg 23, the second leg 24, the strip mounting plate 43 and the connecting rod 26 form a parallelogram. By adjusting the height of the second leg 24 by adjusting the base 25, the height of the first moving roller 21 can be finely adjusted, thereby making the output end of the belt 30 and the working unit to be connected at the same height, thus making the transmission mechanism more versatile.

[0051] Specifically, the axes of the first fixed roller 11 and the second movable roller 22 are located on the same plane. The diameter of the second movable roller 22 is smaller than the diameter of the first fixed roller 11. The uppermost end of the second movable roller 22 is below the plane formed by the uppermost ends of the first fixed roller 11 and the first movable roller 22. The lowermost end of the second movable roller 22 is above the plane of the lowermost travel of the first fixed roller 11 and the second fixed roller 12. Since the belt 30 passes around the second movable roller 22 and enters the lower end of the first movable roller 21 at an angle, the belt 30 at the uppermost end of the second movable roller 22 is always below the belt 30 between the first fixed roller 11 and the first movable roller 21. Furthermore, the belt 30 between the third fixed roller 13 and the second fixed roller 12 is below the belt 30 between the second fixed roller 12 and the second movable roller 22, so that the second support 20 will never rub against the belts 30 on the upper and lower sides during the movement, making the telescopic conveying mechanism work more stably.

[0052] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0053] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A scalable transport mechanism, characterized by, The utility model relates to a kind of belt tensioning device, including: First support and second support, the second support is slidably arranged in one end of first support; First fixed roller and second fixed roller, the first fixed roller and second fixed roller are respectively arranged in both ends of first support; First mobile roller and second mobile roller, the first mobile roller and second mobile roller are respectively arranged in both ends of second support, and second mobile roller is located between first mobile roller and second fixed roller in vertical direction; Belt, the belt is sequentially wound over first fixed roller, second fixed roller, second mobile roller and first mobile roller, and second mobile roller is located outside the loop of belt.

2. The scalable transport mechanism of claim 1, wherein, Third fixed roller is further arranged on the first support, and the third fixed roller is located between first fixed roller and second fixed roller, and the third fixed roller is located outside the loop of belt.

3. The scalable transport mechanism of claim 2, wherein, The third fixed roller is fixedly arranged on the first support by tensioner.

4. The scalable transport mechanism of claim 1, wherein, Motor is fixedly arranged on the first support, and the output shaft of the motor is connected with first fixed roller by chain transmission.

5. The scalable transport mechanism of claim 1, wherein, Manual handle is fixedly arranged on the end of second support away from first support.

6. The scalable transport mechanism of claim 5, wherein, The manual handle includes fixed frame and push rod, the fixed frame is two symmetrically mounted on both sides of the end of second support, the push rod is fixedly arranged between the upper end of two fixed frames, the lower end of fixed frame is provided with strip-shaped mounting plate, one end of strip-shaped mounting plate is connected with the end of second support, and the other end of strip-shaped mounting plate is mounted first mobile roller.

7. The scalable transport mechanism of claim 6, wherein, First support leg is fixedly arranged on the end of second support, and the first support leg is fixedly arranged directly below the connection of strip-shaped mounting plate.

8. The scalable transport mechanism of claim 7, wherein, The strip-shaped mounting plate is rotatably connected with second support, second support leg is rotatably connected on the strip-shaped mounting plate, connecting rod is rotatably connected between first support leg and second support leg, and adjusting foot is arranged on the lower end of second support leg.

9. The scalable transport mechanism of claim 1, wherein, The axis of first fixed roller and second mobile roller is located in the same plane, the diameter of second mobile roller is less than the diameter of first fixed roller, the uppermost end of second mobile roller is located below the plane formed by the uppermost end of first fixed roller and first mobile roller, and the lowermost end of second mobile roller is located above the plane of the lowermost end of first fixed roller and second fixed roller.

10. The scalable transport mechanism of claim 1, wherein, Second support is mounted on first support by slide rail.

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