A portable steel pipe polishing machine

Abstract

This utility model discloses a portable steel pipe polishing machine, including a polisher and a driver. The polisher includes a shell with a hinge groove on the bottom surface. Two hinge plates extending to the lower side of the shell and symmetrically distributed on the left and right are hinged in the hinge groove. The hinge plates are also connected to the side of the hinge groove by a spring, so that the hinge plates are obliquely positioned. The driver is detachably mounted on the shell by a locking assembly. This utility model is a handheld steel pipe polishing device that can polish steel pipes on the construction site, avoiding secondary scratches during transportation after polishing and ensuring the surface quality of the steel pipes. This utility model includes a polisher and a driver, wherein the polisher is replaceable and different polishing belts of different specifications can be clamped in different polishing belts to realize a step-by-step polishing process of coarse polishing followed by fine polishing of the steel pipe, which can reduce labor time, reduce material consumption, and improve polishing effect.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe polishing technology, and in particular to a portable steel pipe polishing machine. Background Technology

[0002] During the production and storage process, steel pipes may become stained or develop an oxide layer on their surface. Therefore, in order to obtain a smooth, bright and uniform surface and improve their appearance, steel pipes usually need to be polished before use.

[0003] However, as shown in the steel pipe surface treatment external polishing machine disclosed in application number CN202223526452.2, the steel pipe polishing machines on the market are generally fixed machines that are difficult to move. This makes it impossible for steel pipes to be polished in the installation area. Moreover, the surface of the steel pipe is prone to secondary scratches during the polishing and transportation and installation process. Therefore, it is necessary to develop a portable steel pipe polishing machine so that the steel pipe can be polished in time before installation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a portable steel pipe polishing machine to solve the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a portable steel pipe polishing machine, including a polisher and a driver. The polisher includes a shell, and a hinge groove is provided in the bottom surface of the shell. Two hinge plates extending to the lower side of the shell and symmetrically distributed on the left and right are hinged in the hinge groove. The hinge plates are also connected to the side of the hinge groove by a spring so that the hinge plates are obliquely arranged. A driven wheel is mounted on the front side of the hinge plate, and a driving wheel is mounted on the front side of the shell. The driving wheel and the driven wheel are connected by a polishing belt.

[0006] A drive shaft is rotatably connected inside the housing, the drive wheel is fixed to the end of the drive shaft, and the driver is detachably mounted on the housing via a locking assembly to drive the drive shaft to rotate.

[0007] Preferably, the driver includes a mounting plate, on which a motor frame is fixedly mounted, and a motor is fixedly mounted inside the motor frame. The output shaft inside the motor extends outside the motor frame and is connected to a first gear. The rear end of the drive shaft is equipped with a second gear capable of meshing with the first gear.

[0008] Preferably, the locking assembly includes limiting rods distributed in a matrix on the rear side of the housing, the limiting rods extending rearward through the mounting plate, two fixed plates and two sliding plates distributed on the left and right sides of the rear side of the housing, the sliding plates being slidably connected to the rear side of the housing, the two sliding plates being positioned between the two fixed plates, and the fixed plates being connected to the adjacent sliding plates via a second spring, the rear side of the sliding plates being integrally formed with a laterally extending pressure plate capable of pressing against the rear side of the mounting plate.

[0009] Preferably, four limiting rods are provided, and the limiting rods are evenly distributed on the left and right sides of the motor frame.

[0010] Preferably, the rear side of the mounting plate is also provided with a protective cover to shield the first gear, and the protective cover extends upward to shield the second gear.

[0011] Preferably, the protective cover is provided with an observation slot facing the meshing point of the first gear and the second gear.

[0012] Preferably, the left and right sides of the outer casing are inclined surfaces, so that the outer casing forms a trapezoid, and a first handle is respectively provided on the two inclined surfaces and the upper side of the outer casing.

[0013] Preferably, a second handle is fixed to the upper side of the protective cover.

[0014] This utility model provides a portable steel pipe polishing machine, which has the following beneficial effects:

[0015] This utility model is a handheld steel pipe polishing device that can polish steel pipes on the construction site, avoiding secondary scratches during transportation after polishing and ensuring the surface quality of the steel pipes.

[0016] This utility model includes a polisher and a driver. The polisher is replaceable, and different polishing belts of different specifications can be clamped in different polishing belts to realize a step-by-step polishing process of rough polishing followed by fine polishing of steel pipes. This can reduce working time, reduce material consumption, and improve polishing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of this utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the main structure inside the inner shell;

[0019] Figure 3 This is a schematic diagram of the appearance of this utility model from another perspective;

[0020] Figure 4 This is a schematic diagram of the appearance of this utility model after the protective cover has been added.

[0021] In the picture:

[0022] 11. Polisher; 12. Driver; 21. Housing; 22. Hinge slot; 24. Hinge plate; 25. Driven wheel; 26. Drive wheel; 27. Polishing belt; 28. Drive shaft; 31. Mounting plate; 32. Motor frame; 33. Motor; 34. Gear No. 1; 35. Gear No. 2; 41. Limiting rod; 42. Fixing plate; 43. Slide plate; 44. Pressure plate; 51. Protective cover; 52. Observation slot; 61. Handle No. 1; 62. Handle No. 2. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, 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 number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Reference Figures 1-4According to an embodiment of the present invention, a portable steel pipe polishing machine includes a polisher 11 and a driver 12. The polisher 11 includes a housing 21. A hinge groove 22 is provided in the bottom surface of the housing 21. Two hinge plates 24 extending to the lower side of the housing 21 and symmetrically distributed on the left and right are hinged in the hinge groove 22. The hinge plates 24 are also connected to the side of the hinge groove 22 by a spring so that the hinge plates 24 are obliquely arranged. A driven wheel 25 is installed in the front side of the hinge plate 24. A driving wheel 26 is installed in the front side of the housing 21. The driving wheel 26 and the driven wheel 25 are connected by a polishing belt 27.

[0028] The method of installing the drive wheel 26 is as follows: a drive shaft 28 is rotatably connected inside the housing 21, the drive wheel 26 is fixed to the end of the drive shaft 28, and the driver 12 is detachably installed on the housing 21 by means of a locking component to drive the drive shaft 28 to rotate.

[0029] The installation method of the driven wheel 25 is a well-known prior art and will not be described in detail here.

[0030] When the drive shaft 28 is driven by the driver 12, the drive wheel 26 will drive the two driven wheels 25 to rotate through the polishing belt 27. During the polishing work, the worker fixes the steel pipe and applies the polishing belt 27 between the two driven wheels 25 to the curved surface of the steel pipe. Then, the worker carries the portable steel pipe polishing machine along the extension direction of the steel pipe to polish the surface of the steel pipe.

[0031] It should be noted that after the polishing belt 27 is pressed against the steel pipe, the polishing belt 27 located between the driven wheels 25 will form a "∧" shape and adhere to the surface of the steel pipe over a larger area. The driven wheels 25 will be subjected to force, causing the two hinge plates 24 to move closer to each other. After the portable steel pipe polishing machine moves away from the steel pipe, the hinge plates 24 will move away from each other and reset under the action of the first spring, causing the polishing belt 27 to straighten.

[0032] In this embodiment, the driver 12 includes a mounting plate 31, on which a motor frame 32 is fixedly mounted, and a motor 33 is fixedly mounted inside the motor frame 32. The output shaft inside the motor 33 extends to the outside of the motor frame 32 and is connected to a first gear 34. The rear end of the drive shaft 28 is equipped with a second gear 35 that can mesh with the first gear 34.

[0033] The locking assembly includes limiting rods 41 distributed in a matrix on the rear side of the housing 21. The limiting rods 41 extend rearward through the mounting plate 31. Two fixing plates 42 and two sliding plates 43 are distributed on the left and right sides of the rear side of the housing 21. The sliding plates 43 are slidably connected to the rear side of the housing 21. The two sliding plates 43 are located between the two fixing plates 42. The fixing plates 42 are connected to the adjacent sliding plates 43 by a second spring. The rear side of the sliding plates 43 has an integrally formed pressure plate 44 that extends laterally to press against the rear side of the mounting plate 31.

[0034] The specific installation process of the polisher 11 and the driver 12 is as follows: The operator moves the pressure plate 44 outward until the distance between the two pressure plates 44 is not less than the left and right width of the mounting plate 31. Then, the operator presses the mounting plate 31 onto the rear side of the outer shell 21, so that the limiting rod 41 passes through the mounting plate 31. At this time, the first gear 34 will mesh with the second gear 35. Then, the operator can release the pressure plate 44. At this time, the sliding plate 43 connected left and right will move closer to each other under the action of the second spring until it abuts against the vertical side of the mounting plate 31, so that the pressure plate 44 presses against the rear side of the mounting plate 31. At this time, the installation of the polisher 11 and the driver 12 is completed.

[0035] Through the above-described simple detachable structure, one driver 12 can be matched with different polishers 11, and the polishing belts 27 in different polishers 11 are of different models, so that different polishers 11 can perform rough polishing and fine polishing processes respectively.

[0036] To ensure a stable connection between the polisher 11 and the driver 12, four limiting rods 41 are provided, and the limiting rods 41 are evenly distributed on the left and right sides of the motor frame 32.

[0037] In a second embodiment of the driver 12, for improved safety, a protective cover 51 is provided on the rear side of the mounting plate 31 to shield the first gear 34. The protective cover 51 extends upward to shield the second gear 35.

[0038] To prevent workers from being unable to properly mesh the first gear 34 and the second gear 35 due to the influence of the protective cover 51, an observation groove 52 is provided inside the protective cover 51, directly facing the meshing point of the first gear 34 and the second gear 35.

[0039] In the second embodiment of the polisher 11, for ease of gripping, the left and right sides of the outer shell 21 are beveled, so that the outer shell 21 forms a trapezoid, and a first handle 61 is respectively provided on the two beveled sides and the upper side of the outer shell 21.

[0040] In addition, a second handle 62 is fixed on the upper side of the protective cover 51 so that the operator can drive the driver 12 to move by means of the second handle 62.

[0041] Furthermore, a pressure sensor can be installed inside the side of the mounting plate 31. When the mounting plate 31 is separated from the housing 21, the pressure sensor does not sense any pressure, and the motor 33 can be automatically controlled to cut off the power. This control method is existing technology and will not be described in detail here.

[0042] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A portable steel pipe polisher comprising a polisher (11) and a driver (12), characterized in that: The polisher (11) includes a housing (21), and a hinge groove (22) is provided in the bottom surface of the housing (21). Two hinge plates (24) extending to the lower side of the housing (21) and symmetrically distributed on the left and right are hinged in the hinge groove (22). The hinge plates (24) are also connected to the side of the hinge groove (22) by a No. 1 spring so that the hinge plates (24) are obliquely arranged. A driven wheel (25) is mounted on the front side of the hinge plate (24), and a driving wheel (26) is mounted on the front side of the housing (21). The driving wheel (26) and the driven wheel (25) are connected by a polishing belt (27). A drive shaft (28) is rotatably connected inside the housing (21), the drive wheel (26) is fixed to the end of the drive shaft (28), and the driver (12) is detachably mounted on the housing (21) by means of a locking assembly for driving the drive shaft (28) to rotate.

2. A portable steel pipe polishing machine according to claim 1, characterized in that: The driver (12) includes a mounting plate (31), on which a motor frame (32) is fixed, and a motor (33) is fixed inside the motor frame (32). The output shaft inside the motor (33) extends to the outside of the motor frame (32) and is connected to a first gear (34). The rear end of the drive shaft (28) is equipped with a second gear (35) that can mesh with the first gear (34).

3. A portable steel pipe polishing machine according to claim 2, wherein: The locking assembly includes a matrix of limiting rods (41) distributed on the rear side of the housing (21). The limiting rods (41) extend rearward through the mounting plate (31). The rear side of the housing (21) has two fixing plates (42) and two sliding plates (43) distributed on the left and right. The sliding plates (43) are slidably connected to the rear side of the housing (21). The two sliding plates (43) are located between the two fixing plates (42). The fixing plates (42) are connected to the adjacent sliding plates (43) by a second spring. The rear side of the sliding plates (43) has an integrally formed pressure plate (44) that extends laterally to press against the rear side of the mounting plate (31).

4. A portable steel pipe polishing machine according to claim 3, characterized in that: The limiting rods (41) are provided in four parts, and the limiting rods (41) are evenly distributed on the left and right sides of the motor frame (32).

5. A portable steel pipe polishing machine according to claim 2, characterized in that: The rear side of the mounting plate (31) is also provided with a protective cover (51) to cover the first gear (34), and the protective cover (51) extends upward to cover the second gear (35).

6. A portable steel pipe polishing machine according to claim 5, characterized in that: The protective cover (51) is provided with an observation slot (52) facing the meshing point of the first gear (34) and the second gear (35).

7. A portable steel pipe polishing machine according to claim 1, characterized in that: The left and right sides of the outer shell (21) are inclined surfaces, so that the outer shell (21) forms a trapezoid. A first handle (61) is provided on each of the two inclined surfaces and the upper side of the outer shell (21).

8. A portable steel pipe polishing machine according to claim 5, characterized in that: The upper side of the protective cover (51) is fixed with a second handle (62).

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