Pipeline reamer
By designing the pipe reamer, the structure of the step-shaped disc and the four-pyramid-shaped cutter head is solved, and the problem of lack of special tools in PVC pipeline repair is achieved efficient pipeline cutting, reaming and stain removal, avoiding the inner wall of the pipeline Scratched.
Patent Information
- Application Number
- CN202420146509.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-01-22
AI Technical Summary
During the repair of PVC pipes, the lack of suitable special tools leads to manual cutting of old pipes, reaming or removing stains when replacing pipes, which is inefficient and prone to scratch the inner walls of the pipes.
A pipe reamer is designed, including a stepped disc, a quadrangular blade head and a hexagonal steel rod. The knife rod is clamped by a pistol drill, and the cutting, reaming or Remove stains.
It achieves rapid and efficient cutting of used pipes, reaming holes or removing stains. The double blade heads are balanced under pressure, high cutting efficiency, and there is chamfer behind the cutting plate to avoid scratching the inner wall of the pipe, which greatly facilitates pipeline replacement and maintenance work.
Smart Images
Figure CN222429460U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PVC pipeline repair, in particular to a pipeline reamer. Background Art
[0002] In the process of repairing PVC pipes, it is often encountered that the old pipes are damaged and need to be replaced with new ones. When replacing, the old pipes in the pipe clamps need to be cut off, and then glue is applied to insert the new pipes. Sometimes, when the diameter of the new pipe is slightly larger, the inner hole of the pipe clamp needs to be expanded before insertion and bonding, or when there is dirt in the pipe clamp, the dirt needs to be cleared before bonding. However, there are no suitable special tools on the market. The utility model designs a pipe reamer, which can complete the above operations, greatly facilitating the pipe repair work. Utility Model Content
[0003] The main purpose of the utility model is to provide a pipeline reamer so as to effectively solve the problems raised in the background technology.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pipe reamer, comprising a cutter disc, a cutter head, and a cutter rod, the cutter disc is a stepped disc, the diameter of the front end of the cutter disc is smaller than the diameter of the rear end, two L-shaped cut grooves are symmetrically arranged on the cutter disc, and penetrate the thickness of the cutter disc, a cutter groove is opened on the radial surface of the cutter groove at the rear end of the cutter disc, a cutter head is installed in the cutter groove, and the cutter head is fixed in the cutter groove with a positioning screw, a hexagonal through hole is arranged in the center of the cutter disc, a small hole is arranged on each corner of the hexagonal through hole, and penetrates the thickness of the cutter disc, and two threaded holes connecting the central hexagonal through hole are symmetrically arranged at the rear end of the cutter disc, the cutter rod is a hexagonal steel rod, which is inserted into the hexagonal through hole in the center of the cutter disc, and a circular groove is turned in the middle of the cutter rod inserted into the cutter disc, countersunk screws are screwed into the two threaded holes at the rear end of the cutter disc, and the countersunk screws are clamped in the circular groove on the cutter rod to fix the cutter rod and the cutter disc together.
[0005] Preferably, the rear end of the cutter disc is provided with a chamfer.
[0006] Preferably, the cutter head is a quadrangular pyramid structure with four rounded corners, the large end of the cone being a blade surface, and a mounting hole being provided in the center. After installation, the blade on the cutter head is higher than the bottom surface of the stepped step at the rear end of the cutter disc, and the radial cutter head blade diameter is larger than the cutter disc diameter.
[0007] Preferably, the cutter disc and the cutter head have various specifications and are suitable for pipes of various specifications after assembly.
[0008] Preferably, both ends of the hexagonal hole in the center of the cutter disc are rounded.
[0009] When in use, select a cutter disc and cutter head of appropriate size and assemble them so that the radial cutter blade diameter of the cutter head is equal to the outer diameter of the pipe to be cut, clamp the cutter rod with a pistol drill, insert the front end of the cutter disc into the inner hole of the pipe to be cut, start the pistol drill, push the cutter rod forward, and the upper blade of the cutter head can cut the waste pipe along the end face of the pipe; when expanding the inner hole of the pipe clamp or removing stains, select a reamer whose blade outer diameter is slightly larger than the inner hole diameter of the pipe clamp after assembly, clamp the cutter rod with a pistol drill, start the pistol drill, push the cutter disc along the inner hole of the pipe clamp, and the radial blade of the cutter head can complete the expansion or remove stains. Since the rear end of the cutter disc is provided with a chamfer, the cutter disc will not scratch the inner wall of the pipe.
[0010] The beneficial effects of the utility model: the utility model can cut off waste pipes, expand holes or remove stains in pipe clamps, the double cutter heads are balanced in force, the cutting efficiency is high, and the chamfer at the back of the cutter disc prevents the cutter disc from scratching the inner wall of the pipe, which greatly facilitates pipe replacement and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Attached Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0012] Attached Figure 2 It is a front view of the structure of the utility model.
[0013] Attached Figure 3 It is a schematic diagram of the installation structure of the tool bar and the countersunk screw of the utility model.
[0014] Attached Figure 4 It is a schematic diagram of the three-dimensional structure of the cutter head of the utility model.
[0015] Attached Figure 5 This is a top view of the cutter disc structure of the utility model.
[0016] Attached Figure 6 This is a schematic diagram of the structure of the countersunk screw of the utility model.
[0017] Attached Figure 1 —6, cutter disc 1, cutter head 2, positioning screw 3, cutter bar 4, threaded hole 5, chamfer 6, circular groove 7, countersunk screw 8. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0019] Example 1
[0020] Attached Figure 1 As shown in —6, a pipe reamer comprises a cutter disc, a cutter head and a cutter rod, wherein the cutter disc 1 is a stepped circular disc, the diameter of the front end of the cutter disc is smaller than the diameter of the rear end, two L-shaped cut grooves are symmetrically arranged on the cutter disc and penetrate the thickness of the cutter disc, a cutter groove is opened on the radial surface of the cutter groove at the rear end of the cutter disc, a cutter head 2 is installed in the cutter groove, and the cutter head 2 is fixed in the cutter groove with a positioning screw 3, a hexagonal through hole is arranged in the center of the cutter disc 1, a small hole is arranged on each corner of the hexagonal through hole and penetrates the thickness of the cutter disc, and two threaded holes 5 connected to the central hexagonal through hole are symmetrically arranged at the rear end of the cutter disc 1, the cutter rod 4 is a hexagonal steel rod, which is inserted into the hexagonal through hole in the center of the cutter disc, and a circular groove 7 is turned in the middle of the cutter disc part where the cutter rod 4 is inserted, countersunk screws 8 are screwed into the two threaded holes 5 at the rear end of the cutter disc 1, and the countersunk screws 8 are clamped in the circular groove 7 on the cutter rod 4 to fix the cutter rod 4 and the cutter disc 1 together.
[0021] The rear end of the cutter disc 1 is provided with a chamfer 6 .
[0022] The cutter head 2 is a quadrangular pyramid structure with four rounded corners. The large end of the cone is a blade surface and a mounting hole is provided in the center. After installation, the blade on the cutter head is higher than the bottom surface of the stepped step at the rear end of the cutter disc 1, and the radial diameter of the cutter head blade is larger than the diameter of the cutter disc 1.
[0023] The cutter disc 1 and the cutter head 2 have various specifications and are suitable for pipes of various specifications after assembly.
[0024] Both ends of the hexagonal hole in the center of the cutter disc are rounded.
[0025] When in use, select a cutter disc 1 and a cutter head 2 of appropriate size and assemble them so that the radial cutter blade diameter of the cutter head 2 is equal to the outer diameter of the PVC pipe to be cut, clamp the cutter bar 4 with a pistol drill, insert the front end of the cutter disc 1 into the inner hole of the pipe to be cut, start the pistol drill, push the cutter bar 4 forward, and the upper blade of the cutter head 2 can cut the waste pipe along the end face of the pipe; when expanding the inner hole of the pipe clamp or removing stains, select a reamer whose blade outer diameter is slightly larger than the inner hole diameter of the pipe clamp after assembly, clamp the cutter bar 4 with a pistol drill, start the pistol drill, push the cutter disc 1 along the inner hole of the pipe clamp, and the radial blade of the cutter head can complete the expansion or remove stains. Since the rear end of the cutter disc is provided with a chamfer, the cutter disc will not scratch the inner wall of the pipe.
[0026] The beneficial effects of the utility model: the utility model can cut off waste pipes, expand holes or remove stains in pipe clamps, the double cutter heads are balanced in force, the cutting efficiency is high, and the chamfer at the back of the cutter disc prevents the cutter disc from scratching the inner wall of the pipe, which greatly facilitates pipe replacement and maintenance work.
[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A pipe reamer, characterized in that: It includes a cutter disc, a cutter head, and a cutter rod. The cutter disc is a stepped circular disc. The diameter of the front end of the cutter disc is smaller than the diameter of the rear end. Two L-shaped cut grooves are symmetrically arranged on the cutter disc and penetrate the thickness of the cutter disc. A cutter groove is opened on the radial surface of the cutter groove at the rear end of the cutter disc. The cutter head is installed in the cutter groove, and the cutter head is fixed in the cutter groove with a positioning screw. A hexagonal through hole is arranged in the center of the cutter disc. A small hole is arranged on each corner of the hexagonal through hole and penetrates the thickness of the cutter disc. Two threaded holes connected to the central hexagonal through hole are also symmetrically arranged at the rear end of the cutter disc. The cutter rod is a hexagonal steel rod, which is inserted into the hexagonal through hole in the center of the cutter disc. A circular groove is machined in the middle of the part where the cutter rod is inserted into the cutter disc. Countersunk screws are screwed into the two threaded holes at the rear end of the cutter disc. The countersunk screws are clamped in the circular groove on the cutter rod to fix the cutter rod and the cutter disc together.
2. A pipe reamer according to claim 1, characterized in that: The rear end of the cutter disc is provided with a chamfer.
3. A pipe reamer according to claim 1, characterized in that: The cutter head is a quadrangular pyramid structure with four rounded corners. The large end of the cone is a blade surface and a mounting hole is provided in the center. After installation, the blade on the cutter head is higher than the bottom surface of the stepped step at the rear end of the cutter disc, and the radial cutter head blade diameter is larger than the cutter disc diameter.
4. A pipe reamer according to claim 1, characterized in that: The cutter disc and the cutter head have various specifications and are suitable for pipes of various specifications after assembly.
5. A pipe reamer according to claim 1, characterized in that: Both ends of the hexagonal hole in the center of the cutter disc are rounded.