Calendaring device

Abstract

The utility model relates to the technical field of ground construction, in particular to a calendering device. The calendering device comprises a plurality of thick-wall hollow steel pipe rollers, a plurality of rotating shafts, connecting rods, a steel pipe pulling and pushing handle, a bolt rod, a lengthening rod and a light-emitting or detecting element, each rotating shaft penetrates through one thick-wall hollow steel pipe roller, and the two connecting rods are connected with the two ends of the rotating shafts and the two ends of the bolt rod respectively; a through hole is formed in the end of the steel pipe pull-push handle, the bolt rod penetrates through the through hole, and the inner diameter of the through hole is larger than the outer diameter of the bolt rod. A lengthening rod can be additionally arranged at the other end of the steel pipe pulling and pushing handle; the two light-emitting or detecting elements are arranged at the two ends, farthest from the steel pipe pulling and pushing handle, of the rotating shaft. In the device, the bolt bar cannot rotate along with the rotation of the steel pipe pulling and pushing handle, so that the plurality of thick-wall hollow steel pipe rollers can be always in contact with the ground, multiple calendering operations can be realized when the steel pipe rollers are pulled or pushed once, the manpower is effectively saved, and the working efficiency is improved. The working efficiency and the calendaring effect can be further improved through the arrangement of a light-emitting or detecting element.

Description

Technical Field

[0001] This utility model relates to the field of ground construction technology, specifically to a calendering device. Background Technology

[0002] In the construction of buildings and municipal engineering projects, after the leveling of building floors and road paving is completed (but not fully hardened), a finishing process (for aesthetic purposes) is required, which is generally done manually with a trowel. Currently, this finishing process is done manually with a trowel. This method is time-consuming, labor-intensive, and inefficient. Furthermore, since it is done before the leveled layer is fully hardened, it can cause damage from foot traffic, requiring re-leveling and re-grouting, wasting construction materials, and easily leading to surface cracks, thus affecting the smooth progress and quality of construction.

[0003] In existing technologies, longer trowels can be used to avoid damage from being stepped on, but repeated troweling is usually required to achieve a smooth finish, which is still time-consuming, labor-intensive, and inefficient. Utility Model Content

[0004] To address the problems in the existing technology, this utility model proposes a calendering device, the specific solution of which is as follows:

[0005] A calendering device includes: a thick-walled hollow steel tube roller, a rotating shaft, connecting rods, a steel tube pull handle, a bolt rod, an extension rod, and light-emitting or detection elements. There are at least two rotating shafts, each passing through a thick-walled hollow steel tube roller. The two connecting rods connect the two ends of each rotating shaft and respectively connect to the two ends of the bolt rod, with the rotating shafts parallel to each other. The end of the steel tube pull handle has a through hole through which the bolt rod passes, the inner diameter of the through hole being larger than the outer diameter of the bolt rod. The other end of the steel tube pull handle has an internal thread, and one end of the extension rod has an internal thread and the other end has an external thread, the internal and external threads being matched. The two light-emitting or detection elements are located at the two ends of the rotating shaft furthest from the steel tube pull handle and close to the thick-walled hollow steel tube roller on the rotating shaft.

[0006] Furthermore, the light-emitting or detection element is an LED light or a sensor.

[0007] Furthermore, when the light-emitting or detection element is a sensor, an alarm light is installed on the surface of the steel pipe push handle.

[0008] Furthermore, the connecting rod is hollow, the bolt rod is hollow, the circuit of the light-emitting or detection element is sequentially arranged inside the connecting rod, the bolt rod, and the steel pipe push handle, and a battery is installed inside the steel pipe push handle.

[0009] This invention features a simple device structure. The bolt rod movably passes through the steel pipe pull / push handle and does not rotate with it. Gravity keeps multiple thick-walled hollow steel pipe rollers in contact with the ground, allowing for multiple rolling and calendering operations with a single pull or push, effectively saving manpower and improving work efficiency. Furthermore, a light-emitting or detection element is installed at the end of the device. During operation, it illuminates or detects the flatness of the calendered surface. Surfaces that do not meet flatness standards are re-calendered, while those that meet the standards are not repeated, further improving work efficiency and calendering effect. This device is simple to manufacture and inexpensive, solving the problem of low efficiency in current calendering methods, ensuring smooth construction progress and improving the social and economic benefits of safe construction. Attached Figure Description

[0010] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0011] Figure 1 A schematic diagram of the structure of this utility model is shown.

[0012] 1-Thick-walled hollow steel pipe roller, 2-Rotating shaft, 3-Connecting rod, 4-Steel pipe pull handle, 5-Bolt rod, 6-Light-emitting or detection element. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0014] In one embodiment, the calendering device includes two thick-walled hollow steel tube rollers 1, two rotating shafts 2, connecting rods 3, steel tube pushers 4, bolt rods 5, extension rods, and light-emitting or detection elements 6. The thick-walled hollow steel tube rollers 1 are relatively heavy. Each rotating shaft 2 (length greater than the length of the thick-walled hollow steel tube roller 1 and outer diameter smaller than the inner diameter of the thick-walled hollow steel tube roller 1) passes through one thick-walled hollow steel tube roller 1. The two connecting rods 3 connect the two ends of each rotating shaft 2 and respectively connect the two ends of the bolt rod 5. The rotating shafts 2 are parallel to each other. The rotating shafts 2 farther from the steel tube pushers 4 and the thick-walled hollow steel tube rollers 1 closer to each other are all relatively long. The steel tube pushers 4 have through holes at their ends, through which the bolt rods 5 pass. The inner diameter of the through holes is larger than that of the bolt rods 5. The outer diameter of the bolt rod 5 does not rotate with the rotation of the steel pipe pusher 4. The other end of the steel pipe pusher 4 is provided with an internal thread, and one end of the extension rod is provided with an internal thread and the other end with an external thread. The internal and external threads are matched with each other. When the area to be polished is large, an extension rod can be added to the hand-held end of the steel pipe pusher. Two light-emitting or detection elements 6 are located at the two ends of the rotating shaft 2 furthest from the steel pipe pusher 4 and close to the thick-walled hollow steel pipe roller 1 on the rotating shaft 2. The light-emitting or detection elements 6 are LED lights or sensors. The connecting rod 3 is hollow, and the bolt rod 5 is also hollow. The circuit of the light-emitting or detection elements 6 is arranged sequentially in the connecting rod 3, the bolt rod 5, and the steel pipe pusher 4, and a battery is installed in the steel pipe pusher 4. When the element is a light-emitting element such as an LED light, the area with poor polishing effect can be clearly found by light, and the operation can be repeated. When the element is a sensor, an alarm light is installed on the surface of the steel pipe pusher 4. When the sensor detects that the ground is obviously uneven, the alarm light flashes.

[0015] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.

Claims

1. A calendering apparatus, characterized in that, include: The assembly comprises a thick-walled hollow steel pipe roller (1), a rotating shaft (2), a connecting rod (3), a steel pipe pull handle (4), a bolt rod (5), an extension rod, and a light-emitting or detection element (6). There are at least two rotating shafts (2), each passing through a thick-walled hollow steel pipe roller (1). Two connecting rods (3) connect the two ends of each rotating shaft (2) and respectively connect the two ends of the bolt rod (5). The rotating shafts (2) are parallel to each other. A through hole is provided at the end of the steel pipe pull handle (4), through which the bolt rod (5) passes. The inner diameter of the through hole is larger than the outer diameter of the bolt rod (5). An internal thread is provided at the other end of the steel pipe pull handle (4). One end of the extension rod has an internal thread, and the other end has an external thread, which are matched. Two light-emitting or detection elements (6) are located at the two ends of the rotating shaft (2) furthest from the steel pipe pull handle (4) and close to the thick-walled hollow steel pipe roller (1) on the rotating shaft (2).

2. The calendering apparatus according to claim 1, characterized in that, The light-emitting or detection element (6) is an LED light or a sensor.

3. The calendering apparatus according to claim 2, characterized in that, The light-emitting or detection element (6) is a sensor, and the surface of the steel pipe push handle (4) is equipped with an alarm light.

4. A calendering apparatus according to any one of claims 1-3, characterized in that, The connecting rod (3) is hollow, the bolt rod (5) is hollow, and the circuit of the light-emitting or detection element (6) is arranged in sequence inside the connecting rod (3), the bolt rod (5), and the steel pipe push handle (4), and a battery is installed inside the steel pipe push handle (4).

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