A double-wall corrugated pipe machining reaming device
By introducing a lubricating fluid storage ring and oil brush lubrication assembly into the reaming device, the problem of high friction during the reaming process is solved, ensuring that the inner wall of the double-walled bellows does not become thin and improving the sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI KAICHEN PLASTIC IND TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-08-04
AI Technical Summary
In the existing double-walled corrugated pipe expansion device, the friction between the expansion plate and the inner wall is large during the expansion process, which leads to the thinning of the inner wall and a reduction in the sealing effect.
A hole-reaming lubrication assembly comprising a lubricant reservoir ring and an oil brush was designed. The lubricant reservoir ring and the oil brush are used to apply lubricant to the surface of the hole-reaming part to reduce friction.
It effectively reduces friction during the hole enlargement process, prevents the inner wall from thinning, and improves the sealing effect at the enlarged hole.
Smart Images
Figure CN224586760U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of double-wall corrugated pipe processing technology, and in particular relates to a hole-expanding device for double-wall corrugated pipe processing. Background Technology
[0002] Double-wall corrugated pipes are pipes with an inner and outer layer structure. The outer layer is typically corrugated, while the inner layer has a smooth wall. They are widely used in drainage, telecommunications, power, and cable protection industries. The corrugated outer layer provides high strength and pressure resistance, while the smooth inner wall offers excellent fluid transport performance. A double-wall corrugated pipe reaming device is used in the processing of double-wall corrugated pipes, primarily for reaming operations to create the required aperture or size between the inner and outer walls. This is typically used in pipe connections, joints, or assemblies where precision machining is required.
[0003] For example, application number 202420948398.0 describes a hole-expanding device for processing double-wall corrugated pipes. By setting up an expanding plate, activating a first electric telescopic rod causes an adjusting plate to slide in the mounting groove and move closer to the double-wall corrugated pipe. Once the expanding plate enters the double-wall corrugated pipe, activating a second electric telescopic rod causes the expanding plate to move closer to and fit against the inner wall of the double-wall corrugated pipe, thereby adjusting the hole-expanding size according to requirements. Activating a second motor and an electric heating plate causes the rotating plate and expanding plate to rotate and expand the hole, while the electric heating plate heats the double-wall corrugated pipe. This facilitates better hole-expanding operations and improves the convenience of hole expansion and size adjustment.
[0004] It has the following disadvantages: During the process of enlarging the hole in a double-walled corrugated pipe, the friction between the enlarging plate and the inner wall of the double-walled corrugated pipe is relatively large. This can easily lead to the inner wall of the double-walled corrugated pipe after the hole enlargement is completed being thinner than the inner wall of the double-walled corrugated pipe without the enlarged hole. This can easily reduce the sealing effect between the enlarged hole of the double-walled corrugated pipe and the connector.
[0005] Therefore, we propose a hole-expanding device for processing double-wall corrugated pipes. Utility Model Content
[0006] To address the aforementioned problems, the purpose of this invention is to provide a device for expanding the borehole in the processing of double-walled corrugated pipes.
[0007] To achieve the above objectives, this utility model proposes a hole-expanding device for processing double-wall corrugated pipes, including a base plate. A double-wall corrugated pipe clamping component and a hole-expanding component are respectively provided on both sides of the upper end surface of the base plate. A hole-expanding lubrication assembly is provided between the double-wall corrugated pipe clamping component and the hole-expanding component. A telescopic component is provided on one side of the hole-expanding component.
[0008] Preferably, the enlarged lubrication assembly includes a lubricating fluid storage ring and support plates disposed on both sides of the lubricating fluid storage ring. A fixing ring is disposed on the lubricating fluid storage ring. An opening is provided at the top of the support plate, and a rotating wheel is rotatably disposed inside the opening. The rotating wheel has an I-shaped cross-section. The fixing ring on the lubricating fluid storage ring is engaged with the rotating wheel on the two support plates.
[0009] Preferably, a toothed ring is provided on one side wall of the lubricant storage ring, a gear is provided below the toothed ring, the gear meshes with the toothed ring, a drive motor is provided on one side of the gear, the output end of the drive motor is connected to the gear, an oil brush is provided on the lubricant storage ring, and the lubricant storage ring is sleeved on the oil brush.
[0010] Preferably, the lubricant storage ring has multiple sets of oil holes on the side wall opposite to the oil brush, and each set of oil holes has multiple sets. Multiple baffles are provided on the inner side of the lubricant storage ring, and the baffles are located between two adjacent sets of oil holes.
[0011] Preferably, the telescopic component includes a fixed plate disposed on one side of the reaming component. A telescopic cylinder is disposed on one side wall of the fixed plate. The output end of the telescopic cylinder passes through the fixed plate. A protective shell is disposed on the output end of the telescopic cylinder passing through the fixed plate. The protective shell is connected to the reaming component. Guide rods are disposed at the four corners of one side wall of the fixed plate. One end of the guide rod passes through the fixed plate. A connecting member is disposed on the guide rod passing through the fixed plate. The connecting member is connected to the reaming component.
[0012] Preferably, the top corner of the side wall opposite to the support plate and the lubricant storage ring is inclined, the drive motor is connected to the base plate through a connecting frame, and the gear and the gear ring are positioned corresponding to each other.
[0013] The hole-expanding device for processing double-wall corrugated pipes proposed in this utility model can bring the following beneficial effects: By installing a reaming lubrication assembly, a layer of lubricant can be applied to the surface of the reaming component that extends into one end of the double-walled bellows for reaming. This reduces the friction between the reaming component and the inner wall of the double-walled bellows during reaming, thus reducing the problem of thinning of the reaming wall due to high friction during reaming, which would otherwise reduce the sealing effect between the reamed-off section of the double-walled bellows and the connecting material. Attached Figure Description
[0014] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0015] In the attached diagram: Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model; Figure 2 This is a second-view schematic diagram of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the lubricant storage ring of this utility model; Figure 4 This is a first-view exploded view of the telescopic component and the enlarged hole component of this utility model; Figure 5 This is a second-view exploded view of the telescopic component and the enlarged hole component of this utility model.
[0016] In the picture: 1. Base plate; 2. Double-walled corrugated pipe clamp; 3. Hole reamer; 4. Hole reamer lubrication assembly; 41. Lubricant reservoir ring; 42. Support plate; 43. Fixing ring; 44. Rotary wheel; 45. Gear ring; 46. Drive motor; 47. Gear; 48. Oil brush; 49. Oil hole; 410. Baffle; 5. Telescopic component; 51. Fixing plate; 52. Telescopic cylinder; 53. Guide rod; 54. Protective shell; 55. Connecting component. Detailed Implementation
[0017] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0018] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0019] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 communication connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0021] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.
[0022] like Figures 1-5 As shown in the figure, an embodiment of the present invention proposes a hole-expanding device for processing double-wall corrugated pipes, including a base plate 1. A double-wall corrugated pipe clamping member 2 and a hole-expanding member 3 are respectively provided on both sides of the upper end surface of the base plate 1. A hole-expanding lubrication assembly 4 is provided between the double-wall corrugated pipe clamping member 2 and the hole-expanding member 3. A telescopic member 5 is provided on one side of the hole-expanding member 3.
[0023] It should be noted that the double-walled corrugated pipe clamping component 2, the hole-expanding component 3, and the hole-expanding lubrication component 4 are on the same straight line, and the double-walled corrugated pipe clamping component 2 and the hole-expanding component 3 are not considered as improved technical solutions in this application. For specific principles, please refer to the prior art, a hole-expanding device for processing double-walled corrugated pipes disclosed in 202420948398.0.
[0024] By setting the orifice expansion lubrication component 4, a layer of lubricant can be applied to the surface of the orifice expansion component 3 that extends into one end of the double-walled bellows for orifice expansion. This can reduce the friction between the orifice expansion component 3 and the inner wall of the double-walled bellows when expanding the orifice. This can reduce the problem that the orifice wall of the double-walled bellows becomes thinner due to the large friction during orifice expansion, thereby reducing the sealing effect between the orifice expansion point of the double-walled bellows and the connector.
[0025] The enlarged lubrication assembly 4 includes a lubricating fluid storage ring 41 and support plates 42 disposed on both sides of the lubricating fluid storage ring 41. A fixing ring 43 is provided on the lubricating fluid storage ring 41. An opening is formed at the top of each support plate 42, and a rotating wheel 44 is rotatably disposed inside the opening. The rotating wheel 44 has an I-shaped cross-section. The fixing ring 43 on the lubricating fluid storage ring 41 is engaged with the rotating wheel 44 on the two support plates 42. A toothed ring 45 is provided on one side wall of the lubricating fluid storage ring 41, and a gear 47 is provided below the toothed ring 45. The gear 47 meshes with the toothed ring 45. A drive motor 46 is provided on one side of the gear 47, and the output end of the drive motor 46 is connected to the gear 47. An oil brush 48 is provided on the lubricating fluid storage ring 41, and the lubricating fluid storage ring 41 is fitted onto the oil brush 48. The lubricant storage ring 41 has multiple sets of oil holes 49 on the side wall opposite to the oil brush 48. Each set of oil holes 49 has multiple sets. Multiple baffles 410 are provided on the inner side of the lubricant storage ring 41, and the baffles 410 are located between two adjacent sets of oil holes 49.
[0026] In this embodiment, the end of the double-walled corrugated pipe to be enlarged is first clamped onto the double-walled corrugated pipe clamping member 2. Then, the expanding member 3 is pushed towards the double-walled corrugated pipe clamping member 2 by the telescopic member 5. During the movement, the expanding member 3 passes through the lubricating fluid storage ring 41. When the expanding member 3 passes through the lubricating fluid storage ring 41, the drive motor 46 is started. The drive motor 46 drives the gear 47 to rotate. The gear 47 drives the lubricating fluid storage ring 41 to rotate through the gear ring 45. During the rotation of the lubricating fluid storage ring 41, the baffle 4 on the inner wall of the lubricating fluid storage ring 41... 10 will splash the lubricating oil that has settled at the bottom of the inner side of the lubricating oil storage ring 41 onto the inner wall of the lubricating oil storage ring 41 opposite to the oil brush 48. The lubricating oil splashed onto the inner wall of the lubricating oil storage ring 41 will flow to the oil brush 48 through the oil hole 49, thereby keeping the oil brush 48 moist. The expanding member 3 passing through the lubricating oil storage ring 41 will be covered with lubricating oil under the rotation of the oil brush 48. When one end of the expanding member 3 is inserted into one end of the double-walled corrugated pipe to a suitable depth, the expanding member 3 will be activated to expand the hole in the double-walled corrugated pipe.
[0027] The telescopic component 5 includes a fixed plate 51 disposed on one side of the expanding component 3. A telescopic cylinder 52 is disposed on one side wall of the fixed plate 51. The output end of the telescopic cylinder 52 passes through the fixed plate 51. A protective shell 54 is disposed on the output end of the telescopic cylinder 52 passing through the fixed plate 51. The protective shell 54 is connected to the expanding component 3. Guide rods 53 are disposed at the four corners of one side wall of the fixed plate 51. One end of the guide rod 53 passes through the fixed plate 51. A connector 55 is disposed on the guide rod 53 passing through the fixed plate 51. The connector 55 is connected to the expanding component 3.
[0028] It should be noted that the reamer 3 has a connecting hole, and the connector 55 is a combination of a threaded rod and a nut. The connector 55 is connected to the reamer 3 through the connecting hole on the reamer 3. The protective shell 54 also has a connecting hole for mounting on the reamer 3. The protective shell 54 also protects the drive source on the reamer 3. The guide rod 53 guides the reamer 3 during its movement.
[0029] In this embodiment, during use, the guide rod 53 is connected to the expanding member 3 through the connector 55 and the protective shell 54. When it is necessary to move the expanding member 3 toward the double-walled corrugated pipe held on the double-walled corrugated pipe clamp 2, the telescopic cylinder 52 is activated. The telescopic cylinder 52 drives the expanding member 3 toward the double-walled corrugated pipe held on the double-walled corrugated pipe clamp 2.
[0030] The top corner of the side wall opposite to the support plate 42 and the lubricant storage ring 41 is inclined. The drive motor 46 is connected to the base plate 1 through a connecting frame. The gear 47 and the gear ring 45 are positioned correspondingly. The inclined angle on the support plate 42 can prevent one corner of the support plate 42 from scratching the rotating lubricant storage ring 41.
[0031] Working principle: In use, first connect the guide rod 53 to the expanding member 3 via the connector 55 and the protective shell 54. Then, clamp the end of the double-walled corrugated pipe to be expanded onto the double-walled corrugated pipe clamping member 2. Then, start the telescopic cylinder 52. The telescopic cylinder 52 drives the expanding member 3 to move towards the double-walled corrugated pipe clamped on the double-walled corrugated pipe clamping member 2. During the movement, the expanding member 3 will pass through the lubricating fluid storage ring 41. When the expanding member 3 passes through the lubricating fluid storage ring 41, start the drive motor 46. The drive motor 46 drives the gear 47 to rotate. The gear 47 drives the lubricating fluid storage ring 41 to rotate through the gear ring 45. The lubricating fluid storage ring 41 rotates... During operation, the baffle 410 on the inner wall of the lubricant storage ring 41 will splash the lubricating oil deposited at the bottom of the inner side of the lubricant storage ring 41 onto the inner wall of the lubricant storage ring 41 opposite to the oil brush 48. The lubricating oil splashed onto the inner wall of the lubricant storage ring 41 will flow to the oil brush 48 through the oil hole 49, thereby keeping the oil brush 48 moist. The expanding member 3 passing through the lubricant storage ring 41 will be covered with lubricating oil under the rotation of the oil brush 48. When one end of the expanding member 3 is inserted into one end of the double-walled corrugated pipe to a suitable depth, the expanding member 3 will be activated to expand the hole at the part of the double-walled corrugated pipe to be expanded.
[0032] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0033] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A device for machining a counterbore in a double-walled corrugated pipe, comprising a base plate (1), characterized in that, The upper end face of the base plate (1) is provided with a double-walled corrugated pipe clamp (2) and a hole-expanding component (3) respectively. A hole-expanding lubrication assembly (4) is provided between the double-walled corrugated pipe clamp (2) and the hole-expanding component (3). A telescopic component (5) is provided on one side of the hole-expanding component (3). The hole-expanding lubrication assembly (4) includes a lubricating fluid storage ring (41) and support plates (42) provided on both sides of the lubricating fluid storage ring (41). A fixing ring (43) is provided on the lubricating fluid storage ring (41). An opening is provided at the top of the support plate (42). A rotating wheel (44) is rotatably provided inside the opening. The cross-section of the rotating wheel (44) is I-shaped. The fixing ring (43) on the lubricating fluid storage ring (41) is engaged with the rotating wheel (44) on the two support plates (42). A toothed ring (45) is provided on one side wall of the lubricating fluid storage ring (41), and a gear (47) is provided below the toothed ring (45). The gear (47) meshes with the toothed ring (45). A drive motor (46) is provided on one side of the gear (47), and the output end of the drive motor (46) is connected to the gear (47). An oil brush (48) is provided on the lubricating fluid storage ring (41), and the lubricating fluid storage ring (41) is sleeved on the oil brush (48). Multiple sets of oil holes (49) are opened on the side wall of the lubricating fluid storage ring (41) opposite to the oil brush (48). Each set of oil holes (49) is provided with multiple holes. Multiple baffles (410) are provided on the inner side of the lubricating fluid storage ring (41), and the baffles (410) are located between two adjacent sets of oil holes (49).
2. A device for machining and reaming a double-walled corrugated pipe according to claim 1, characterized in that The telescopic component (5) includes a fixed plate (51) disposed on one side of the expanding component (3). A telescopic cylinder (52) is disposed on one side wall of the fixed plate (51). The output end of the telescopic cylinder (52) passes through the fixed plate (51). A protective shell (54) is disposed on the output end of the telescopic cylinder (52) passing through the fixed plate (51). The protective shell (54) is connected to the expanding component (3). A guide rod (53) is disposed at the four corners of one side wall of the fixed plate (51). One end of the guide rod (53) passes through the fixed plate (51). A connector (55) is disposed on the guide rod (53) passing through the fixed plate (51). The connector (55) is connected to the expanding component (3).
3. A device for reaming a double-walled corrugated pipe according to claim 1, characterized in that The top corner of the support plate (42) and the side wall opposite to the lubricant storage ring (41) is provided with an inclined angle. The drive motor (46) is connected to the base plate (1) through the connecting frame. The gear (47) and the gear ring (45) are in corresponding positions.