CN219173750U

CN219173750U - Curvature-adjustable arc roller

Info

Publication number: CN219173750U
Application number: CN202222955279.1U
Authority: CN
Inventors: 胡家奇
Original assignee: Jinan Huazhang Industrial Co ltd
Current assignee: Jinan Huazhang Industrial Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-06-13
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a curvature-adjustable arc roller, which comprises an arc roller main body and a limiting mechanism, wherein connecting shafts are arranged at two ends of the arc roller main body, an adjusting rod is arranged at one end of one connecting shaft, a rectangular rod is arranged at one end of the adjusting rod, the limiting mechanism comprises a plurality of telescopic rods, a plurality of connecting holes are formed in the outer wall of the rectangular rod, the telescopic rods are respectively and movably inserted and connected to the inner walls of the connecting holes, and an extrusion mechanism is arranged between the telescopic rods. According to the utility model, the plurality of telescopic rods and the connecting holes are utilized, after the inner four-corner wrench sleeve is arranged on the outer wall of the rectangular rod, the inner four-corner wrench can be limited by extending out of the connecting holes through the telescopic rods, so that the inner four-corner wrench is prevented from falling off from the rectangular rod, and the adjusting stability of the arc-shaped roller is improved.

Description

Curvature-adjustable arc roller

Technical Field

The utility model relates to the technical field of arc rollers, in particular to an arc roller with adjustable curvature.

Background

The arc roller is a device for spreading paper and preventing wrinkles in the paper transportation process, the mechanical adjustable arc roller is a common arc roller, and the radian curvature of the arc roller can be adjusted, so that the arc roller is more applicable, the adjusting mode is to cover the rectangular rod of the adjusting rod with the inner four-corner spanner matched with the arc roller, then the rectangular rod is driven to rotate through the rotation of the inner four-corner spanner, but the rotation of the rectangular rod requires very large force, so that an operator can easily fall off the rectangular rod due to the dislocation of the force when the inner four-corner spanner is forcefully rotated, and the adjusting stability of the arc roller is reduced.

Disclosure of Invention

The utility model aims to provide an arc-shaped roller with adjustable curvature, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a curvature adjustable arc roller comprising:

the arc-shaped roller comprises an arc-shaped roller body, wherein connecting shafts are arranged at two ends of the arc-shaped roller body, an adjusting rod is arranged at one end of one connecting shaft, and a rectangular rod is arranged at one end of the adjusting rod;

the limiting mechanism comprises a plurality of telescopic rods, a plurality of connecting holes are formed in the outer wall of the rectangular rod, the telescopic rods are movably inserted and connected to the inner walls of the connecting holes respectively, and an extrusion mechanism is arranged between the telescopic rods.

Preferably, the extrusion mechanism comprises an extrusion block, a movable cavity is formed in the rectangular rod, one end of the telescopic rod extends to the inside of the movable cavity and is fixedly connected with a hemispherical block, the extrusion block is arranged in the inside of the movable cavity in a sliding mode, and a conical surface is formed in the outer wall of the extrusion block.

Preferably, the inner wall of the connecting hole is provided with a connecting cavity, the inner wall of the connecting cavity is slidably connected with a limiting ring, the limiting ring is fixedly sleeved on the outer wall of the adjusting rod, a spring is arranged between the limiting ring and the inner wall of the movable cavity, and the spring is sleeved on the outer wall of the adjusting rod.

Preferably, a movable hole is formed in one end of the rectangular rod, a movable rod is movably inserted into the inner wall of the movable hole, and the movable rod is fixedly inserted into the extrusion block.

Preferably, the outer wall of the movable rod is provided with an external thread groove, the inside of the rectangular rod is provided with a threaded hole, and the outer wall of the external thread groove is in threaded connection with the inner wall of the threaded hole.

Preferably, one end of the movable rod is fixedly connected with a knob, and the section of the knob is regular hexagon.

Preferably, bearing seats are arranged at two ends of the arc-shaped roller main body, and the two bearing seats are connected with the two connecting shafts through bearings respectively.

The utility model has the technical effects and advantages that:

according to the utility model, the plurality of telescopic rods and the connecting holes are utilized, after the inner four-corner wrench sleeve is arranged on the outer wall of the rectangular rod, the inner four-corner wrench can be limited by extending out of the connecting holes through the telescopic rods, so that the inner four-corner wrench is prevented from falling off from the rectangular rod, and the adjusting stability of the arc roller is improved;

according to the utility model, the arrangement of the spring and the limiting ring is utilized, the limiting ring is always extruded under the elastic action of the spring, and the telescopic rod can automatically reset and retract into the connecting hole under the action of the spring when the extrusion block does not extrude the hemispherical block any more, so that the inner four-corner wrench is conveniently taken down from the rectangular rod.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of a partial enlarged structure at a of fig. 1 according to the present utility model.

Fig. 3 is a schematic view of the front cross-sectional structure of the rectangular bar of the present utility model.

In the figure: 11. an arc roller body; 12. a connecting shaft; 13. an adjusting rod; 14. a rectangular bar; 21. a connection hole; 22. a telescopic rod; 31. a movable cavity; 32. extruding a block; 33. hemispherical blocks; 41. a connecting cavity; 42. a limiting ring; 43. a spring; 51. a movable hole; 52. a movable rod; 61. a threaded hole; 62. an external thread groove; 71. a knob; 81. and a bearing seat.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a curvature-adjustable arc roller as shown in fig. 1-3, which comprises an arc roller main body 11 and a limiting mechanism, wherein connecting shafts 12 are arranged at two ends of the arc roller main body 11, one end of one connecting shaft 12 is provided with an adjusting rod 13, one end of the adjusting rod 13 is provided with a rectangular rod 14, the model of the arc roller main body 11 is phi 95-1700, the rectangular rod 14 is sleeved by an inner four-corner wrench, and then the rectangular rod 14 can be driven to rotate by rotating the inner four-corner wrench, so that the adjusting rod 13 rotates to adjust the radian curvature of the arc roller main body 11;

the limiting mechanism comprises a plurality of telescopic rods 22, a plurality of connecting holes 21 are formed in the outer wall of the rectangular rod 14, the plurality of telescopic rods 22 are respectively movably inserted and connected to the inner walls of the plurality of connecting holes 21, an extrusion mechanism is arranged between the plurality of telescopic rods 22, when the inner four-corner wrench is sleeved on the rectangular rod 14, the telescopic rods 22 extend out of the connecting holes 21, and the inner four-corner wrench sleeved on the rectangular rod 14 can be limited through the plurality of extending telescopic rods 22, so that the inner four-corner wrench is prevented from falling off from the outer wall of the rectangular rod 14 when rotating, and the adjusting stability of the arc-shaped roller main body 11 is improved;

the extrusion mechanism comprises an extrusion block 32, a movable cavity 31 is formed in the rectangular rod 14, one end of the telescopic rod 22 extends to the inside of the movable cavity 31 and is fixedly connected with a hemispherical block 33, the extrusion block 32 is slidably arranged in the movable cavity 31, the outer wall of the extrusion block 32 is provided with a conical surface, and the conical surface is extruded by the extrusion block 32 to extrude the hemispherical block 33, so that the telescopic rod 22 can move in a direction far away from the extrusion block 32, and a plurality of telescopic rods 22 can move at the same time;

the inner wall of the connecting hole 21 is provided with a connecting cavity 41, the inner wall of the connecting cavity 41 is slidably connected with a limiting ring 42, the limiting ring 42 is fixedly sleeved on the outer wall of the adjusting rod 13, a spring 43 is arranged between the limiting ring 42 and the inner wall of the movable cavity 31, the spring 43 is sleeved on the outer wall of the adjusting rod 13, the spring 43 always presses the limiting ring 42 under the elastic action of the spring 43, so that the telescopic rod 22 always has a trend of moving towards the pressing block 32, and when the pressing degree of the pressing block 32 is reduced, the telescopic rod 22 can automatically reset and retract into the connecting hole 21 under the action of the spring 43, and the inner four-corner wrench is conveniently separated from the rectangular rod 14;

a movable hole 51 is formed in one end of the rectangular rod 14, a movable rod 52 is movably connected to the inner wall of the movable hole 51 in a penetrating manner, the movable rod 52 is fixedly connected to the inside of the extrusion block 32 in a penetrating manner, and the extrusion block 32 can be driven to move by moving the movable rod 52 in the movable hole 51;

the outer wall of the movable rod 52 is provided with an external thread groove 62, the inside of the rectangular rod 14 is provided with a threaded hole 61, the outer wall of the external thread groove 62 is in threaded connection with the inner wall of the threaded hole 61, the movable rod 52 can move along with the rotation of the movable rod 52 through the threaded fit of the external thread groove 62 and the inner wall of the threaded hole 61, and meanwhile, the movable rod 52 can be automatically positioned and cannot move any more when the movable rod 52 does not rotate any more;

one end of the movable rod 52 is fixedly connected with a knob 71, the section of the knob 71 is in a regular hexagon shape, and the regular hexagon knob 71 is convenient for an inner hexagonal wrench to be matched for rotation;

both ends of the arc-shaped roller main body 11 are provided with bearing seats 81, the two bearing seats 81 are respectively connected with the two connecting shafts 12 through bearings, and the arc-shaped roller main body 11 can work between the two bearing seats 81 stably through the arrangement of the bearings.

The working principle of the utility model is as follows:

when the radian curvature of the arc roller main body 11 needs to be adjusted, the inner four-corner wrench is sleeved on the rectangular rod 14, at the moment, the inner four-corner wrench is sleeved on the knob 71, one hand holds the inner four-corner wrench, the other hand rotates the inner four-corner wrench, the movable rod 52 can rotate, under the cooperation of the external thread groove 62 and the threaded hole 61, the movable rod 52 moves to drive the extrusion block 32 to move, the cone of the extrusion block 32 extrudes the hemispherical block 33, the plurality of telescopic rods 22 can extend outwards, and the inner four-corner wrench sleeved on the outer wall of the rectangular rod 14 is limited through the extending telescopic rods 22, so that the inner four-corner wrench is not easy to fall off from the rectangular rod 14 when rotating.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A curvature adjustable arc roller comprising:

the novel roller comprises an arc-shaped roller body (11), wherein connecting shafts (12) are arranged at two ends of the arc-shaped roller body (11), an adjusting rod (13) is arranged at one end of one connecting shaft (12), and a rectangular rod (14) is arranged at one end of the adjusting rod (13);

the limiting mechanism comprises a plurality of telescopic rods (22), a plurality of connecting holes (21) are formed in the outer wall of the rectangular rod (14), the telescopic rods (22) are movably inserted and connected to the inner walls of the connecting holes (21) respectively, and an extrusion mechanism is arranged between the telescopic rods (22).

2. The curvature-adjustable arc roller according to claim 1, wherein the extrusion mechanism comprises an extrusion block (32), a movable cavity (31) is formed in the rectangular rod (14), one end of the telescopic rod (22) extends to the inside of the movable cavity (31) and is fixedly connected with a hemispherical block (33), the extrusion block (32) is slidably arranged in the inside of the movable cavity (31), and a conical surface is formed in the outer wall of the extrusion block (32).

3. The curvature-adjustable arc roller according to claim 1, wherein the inner wall of the connecting hole (21) is provided with a connecting cavity (41), the inner wall of the connecting cavity (41) is slidably connected with a limiting ring (42), the limiting ring (42) is fixedly sleeved on the outer wall of the adjusting rod (13), a spring (43) is arranged between the limiting ring (42) and the inner wall of the movable cavity (31), and the spring (43) is sleeved on the outer wall of the adjusting rod (13).

4. The curvature-adjustable arc roller according to claim 1, wherein a movable hole (51) is formed at one end of the rectangular rod (14), a movable rod (52) is movably connected to the inner wall of the movable hole (51) in a penetrating manner, and the movable rod (52) is fixedly connected to the inside of the extrusion block (32) in a penetrating manner.

5. The curvature-adjustable arc roller as claimed in claim 4, wherein the outer wall of the movable rod (52) is provided with an external thread groove (62), the inside of the rectangular rod (14) is provided with a threaded hole (61), and the outer wall of the external thread groove (62) is in threaded connection with the inner wall of the threaded hole (61).

6. The curvature-adjustable arc roller as claimed in claim 4, wherein one end of the movable rod (52) is fixedly connected with a knob (71), and the cross section of the knob (71) is in a regular hexagon shape.

7. A curvature adjustable arc roller according to claim 1, characterized in that both ends of the arc roller body (11) are provided with bearing blocks (81), and that two of the bearing blocks (81) are connected with two connecting shafts (12) through bearings, respectively.