An unpowered roller

Abstract

The utility model relates to the technical field of roller, especially a non -power roller, the design is through setting two telescopic cylinders, middle cylinder and two -way screw rod etc.

Description

Technical Field

[0001] This utility model relates to the field of roller technology, and in particular to a non-powered roller. Background Technology

[0002] Non-powered roller conveyors are cylindrical conveying devices that transport materials without external power, relying on the material's own gravity or manual pushing. Their core structure consists of a cylinder (steel / plastic pipe), inner shaft (round steel), end caps (carbon steel), and standard bearings. Surface treatments include electroplating, powder coating, and rubber coating to adapt to different environmental requirements. With its durability, flexible rotation, and low cost, this equipment is widely used in light to medium-duty material conveying in factory production lines and warehousing logistics centers. It is particularly suitable for harsh conditions such as high dust and humidity, providing an economical solution that simplifies handling processes and reduces labor intensity.

[0003] Existing technology patent CN201891730U discloses a non-powered roller structure, including a roller, a roller shaft, and frames at both ends. The roller shaft passes through the center of the roller and is supported by the frames at both ends. The roller is exposed at both ends of the roller shaft, and the roller shaft is threaded at both ends. The frames at both ends are respectively fitted onto the two ends of the roller shaft. Nuts on the outer side of the frames at both ends are threaded to the threads at both ends of the roller shaft, and the nuts press against the outer side of the frames at both ends.

[0004] In the aforementioned prior art, when faced with conveying objects of varying sizes, the length of the roller needs to be adjusted accordingly to achieve efficient conveying. However, in reality, the length of existing rollers remains fixed, which severely limits their application in different conveying scenarios and fails to meet the market's demand for diversified roller products. Utility Model Content

[0005] The purpose of this utility model is to provide a non-powered roller, which aims to solve the technical problem that in the prior art, when facing conveying objects of different sizes, the length of the roller needs to be adjusted accordingly to achieve efficient conveying. However, in reality, the length of existing rollers is fixed, which seriously limits their application in different conveying scenarios and cannot meet the market's demand for diversified roller products.

[0006] To achieve the above objectives, this utility model employs a non-powered roller, comprising two telescopic cylinders, a middle cylinder, and two support seats. Each telescopic cylinder has an installation groove and a positioning groove at one end. A fixing frame is provided in the installation groove, and a threaded sleeve is provided on the fixing frame. A positioning rod is provided in the positioning groove. A rotating sleeve is provided at the other end of each telescopic cylinder. Both ends of the middle cylinder have multiple positioning holes. A bidirectional screw is rotatably mounted in the middle cylinder via a bearing. The two telescopic cylinders are slidably connected to the middle cylinder and are symmetrically arranged at both ends of the middle cylinder. The positioning rod is inserted into the corresponding positioning hole. The bidirectional screw is threaded between the two threaded sleeves and passes through the corresponding rotating sleeve. The bidirectional screw is driven by a rotating disk. The two telescopic cylinders are rotatably mounted on the corresponding support seats via the rotating sleeves, and both telescopic cylinders and the middle cylinder are located between the two support seats.

[0007] Each of the telescopic cylinders has a beveled surface at its outer edge.

[0008] The middle cylinder has embedded grooves at both ends, and one end of the telescopic cylinder extends into the embedded groove.

[0009] The unpowered roller also includes a base frame, with grooves on both inner sides of the base frame. Each support seat has a slider on both sides, and the sliders are slidably disposed in the corresponding grooves.

[0010] Each of the support bases is provided with a roller seat below it, and two roller bodies are rotatably arranged below the roller seat, with both roller bodies abutting against the inner bottom of the base frame.

[0011] This utility model discloses a non-powered roller. The design incorporates two telescopic cylinders, a middle cylinder, and a bidirectional screw. The bidirectional screw is threaded between the threaded sleeves of the two telescopic cylinders. Rotating the bidirectional screw causes the two telescopic cylinders to slide relative to the middle cylinder, thereby adjusting the overall length of the roller to accommodate objects of different sizes. Simultaneously, a positioning rod at one end of each telescopic cylinder is inserted into a corresponding positioning hole in the middle cylinder, ensuring stability during length adjustment. The telescopic cylinders are rotatably mounted on a support base via rotating sleeves, and the support base slides within a groove in the bottom frame via a slider. Furthermore, the roller body of the roller seat below the support base abuts against the inner bottom of the bottom frame, facilitating overall movement and position adjustment to further meet the needs of different conveying scenarios. Attached Figure Description

[0012] 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 or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional view of the present invention.

[0014] Figure 2 This is the front view of this utility model.

[0015] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.

[0016] Figure 4 This is the utility model Figure 3 A cross-sectional view along the BB line.

[0017] Figure 5 This is the utility model Figure 3 A cross-sectional view of the CC line.

[0018] 1-Telescopic cylinder, 2-Middle cylinder, 3-Support base, 4-Mounting groove, 5-Positioning groove, 6-Fixing frame, 7-Threaded sleeve, 8-Positioning rod, 9-Rotating sleeve, 10-Positioning hole, 11-Double screw, 12-Rotating disk, 13-Inclined surface, 14-Embedded groove, 15-Bottom frame, 16-Slide groove, 17-Slider, 18-Roller seat, 19-Roller body. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please see Figures 1-5This utility model provides a non-powered roller, including two telescopic cylinders 1, a middle cylinder 2, and two support seats 3. Each telescopic cylinder 1 has an installation groove 4 and a positioning groove 5 at one end. A fixing frame 6 is provided in the installation groove 4, and a threaded sleeve 7 is provided on the fixing frame 6. A positioning rod 8 is provided in the positioning groove 5. A rotating sleeve 9 is provided at the other end of each telescopic cylinder 1. Both ends of the middle cylinder 2 have multiple positioning holes 10. A bidirectional screw 11 is rotatably provided in the middle cylinder 2 through a bearing. The two telescopic cylinders 1 are slidably connected to the middle cylinder 2 and are symmetrically arranged at both ends of the middle cylinder 2. The positioning rod 8 is inserted into the corresponding positioning hole 10. The bidirectional screw 11 is threaded between the two threaded sleeves 7 and passes through the corresponding rotating sleeve 9. The bidirectional screw 11 is driven by a rotating disk 12. The two telescopic cylinders 1 are rotatably mounted on the corresponding support seats 3 through the rotating sleeves 9. The two telescopic cylinders 1 and the middle cylinder 2 are both located between the two support seats 3.

[0021] In this embodiment, when the bidirectional screw 11 is rotated, since the bidirectional screw 11 is threaded between the threaded sleeves 7 of the two telescopic cylinders 1, it can drive the two telescopic cylinders 1 to slide symmetrically relative to the middle cylinder 2, thereby flexibly adjusting the length of the entire roller to meet the conveying needs of objects of different sizes. The positioning rod 8 at one end of the telescopic cylinder 1 is inserted into the corresponding positioning hole 10 of the middle cylinder 2 to ensure structural stability during length adjustment and prevent shaking or misalignment. The rotating sleeve 9 at the other end of the telescopic cylinder 1 is easy to connect with the support base 3 to realize the rotation function of the roller. The two telescopic cylinders 1 and the middle cylinder 2 are all located between the two support bases 3, providing a stable support frame for the overall structure, so that the roller can operate stably in different length adjustment states, greatly expanding its application range in diverse conveying scenarios.

[0022] Furthermore, each of the telescopic cylinders 1 has a bevel 13 at its outer edge.

[0023] In this embodiment, during the conveying process, when the object comes into contact with the outer edge of the telescopic cylinder 1, the inclined surface 13 can play a good guiding role, allowing the object to enter the roller conveying area more smoothly.

[0024] Furthermore, both ends of the middle cylinder 2 are also provided with embedding grooves 14, and one end of the telescopic cylinder 1 extends into the embedding grooves 14.

[0025] In this embodiment, the extension of the telescopic cylinder 1 into the embedded groove 14 increases the connection area between the telescopic cylinder 1 and the middle cylinder 2, making the connection between the two tighter and more stable. During the adjustment of the roller length, it can effectively prevent the telescopic cylinder 1 and the middle cylinder 2 from becoming loose or separating, thus ensuring the integrity and stability of the structure.

[0026] Furthermore, the unpowered roller also includes a base frame 15, with grooves 16 on both inner sides of the base frame 15, and sliders 17 on both sides of each support seat 3, with the sliders 17 slidably disposed in the corresponding grooves 16.

[0027] In this embodiment, by sliding the slider 17 within the groove 16, the support base 3 can move easily along the bottom frame 15, thereby driving the entire roller to adjust its position in the horizontal direction.

[0028] Furthermore, each of the support seats 3 is provided with a roller seat 18 below it, and two roller bodies 19 are rotatably arranged below the roller seat 18, and both roller bodies 19 abut against the inner bottom of the bottom frame 15.

[0029] In this embodiment, the support base 3 and the roller can be easily moved on the bottom frame 15 by rotating the roller, which is convenient and quick.

[0030] When using this utility model, depending on the size of the object to be conveyed, by rotating the bidirectional screw 11, since its thread is set between the threaded sleeves 7 of the two telescopic cylinders 1, the two telescopic cylinders 1 will slide symmetrically relative to the middle cylinder 2. At the same time, the positioning rod 8 at one end of the telescopic cylinder 1 slides in the corresponding positioning hole 10 of the middle cylinder 2 to ensure structural stability until the length of the roller is adjusted to a suitable size. During the adjustment process, the telescopic cylinder 1 extends into the embedded grooves 14 at both ends of the middle cylinder 2, enhancing the connection stability. If it is necessary to change the position of the roller, push the support base 3, and the sliders 17 on both sides of it slide in the sliding grooves 16 on both inner sides of the bottom frame 15. At the same time, the roller body 19 of the roller seat 18 below the support base 3 rolls at the bottom of the bottom frame 15, which can easily realize the horizontal position adjustment of the roller. After the position is adjusted, the object to be conveyed is placed on the roller. The inclined surface 13 at the outer edge of the telescopic cylinder 1 can guide the object smoothly into the conveying area. Then the roller relies on the friction with the conveyed object to achieve unpowered conveying.

[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A non-powered roller, characterized in that, The device includes two telescopic cylinders, a middle cylinder, and two support bases. Each telescopic cylinder has a mounting groove and a positioning groove at one end. A fixing frame is provided in the mounting groove, and a threaded sleeve is provided on the fixing frame. A positioning rod is provided in the positioning groove. A rotating sleeve is provided at the other end of each telescopic cylinder. Both ends of the middle cylinder have multiple positioning holes. A bidirectional screw is rotatably mounted in the middle cylinder via a bearing. The two telescopic cylinders are slidably connected to the middle cylinder and are symmetrically arranged at both ends of the middle cylinder. The positioning rod is inserted into the corresponding positioning hole. The bidirectional screw is threaded between the two threaded sleeves and passes through the corresponding rotating sleeve. The bidirectional screw is driven by a rotating disk. The two telescopic cylinders are rotatably mounted on the corresponding support bases via the rotating sleeves. The two telescopic cylinders and the middle cylinder are all located between the two support bases.

2. The unpowered roller as described in claim 1, characterized in that, Each of the telescopic cylinders has a beveled edge at its outer edge.

3. The unpowered roller as described in claim 2, characterized in that, Both ends of the middle cylinder have embedding grooves, and one end of the telescopic cylinder extends into the embedding groove.

4. The unpowered roller as described in claim 3, characterized in that, The unpowered roller also includes a base frame, with grooves on both inner sides of the base frame. Each support seat has a slider on both sides, and the sliders are slidably disposed in the corresponding grooves.

5. The unpowered roller as described in claim 4, characterized in that, Each of the support bases is provided with a roller seat below it, and two roller bodies are rotatably arranged below the roller seat, with both roller bodies abutting against the inner bottom of the base frame.

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