Building welding protection middle wall pipe with glue
By designing a device including a metal pipe, a middle-wall pipe with glue, a U-shaped docking frame, a mounting bracket, a pressure roller, a handle, a spring pressure frame and a scraper rod, the problem of the cavity after heat shrinkage of the middle-wall pipe with glue is solved, and the sealing effect is improved.
Patent Information
- Application Number
- CN202422990008.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The adhesive-coated medium-wall tube used for construction welding protection is prone to produce local cavities after heat shrinkage operation, affecting the sealing effect.
A device is designed, which includes a metal pipe, a middle-wall pipe with glue, a U-shaped docking frame, a mounting bracket, a pressure roller, a handle, a spring pressure frame and a scraper. The scraper and the spring pressure frame cooperate to achieve shape adjustment and cavity removal of the middle-wall pipe with glue.
It effectively removes the cavity produced by heat shrinkage of the adhesive-coated middle wall tube, ensures the sealing effect, and improves the reliability of welding protection.
Smart Images

Figure CN223345020U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a construction welding protection adhesive-coated middle-wall pipe, belonging to the technical field of adhesive-coated middle-wall pipes. Background Art
[0002] This adhesive-coated medium-wall tubing for construction welding protection is heat-shrinkable tubing. Its outer radiation-cross-linked polyolefin jacket provides effective mechanical protection, while its inner adhesive layer provides excellent waterproof and moisture-proof protection for weld points. It is specifically designed for metal pipe fittings, threaded steel welds, or other connections requiring sealing protection. After the heat shrink process is complete, the tubing's shape can change, creating local cavities that can affect the seal. Utility Model Content
[0003] The purpose of the utility model is to provide a construction welding protective tape adhesive medium wall pipe to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a construction welding protective adhesive middle wall tube, comprising a metal pipe fitting, an adhesive middle wall tube, a U-shaped docking frame, a mounting bracket, a pressure roller, a handle, a spring pressure frame, and a scraper rod. After the two metal pipe fittings are welded and installed, the outer diameter is covered with the adhesive middle wall tube. The U-shaped docking frame is positioned and welded to the mounting bracket. The U-shaped docking frame is docked with the outer diameter of the metal pipe fitting. The spring pressure frame built into the through groove of the mounting bracket positions and installs the pressure roller through a rotating shaft. A handle is positioned and installed at the front end of the mounting bracket. The scraper rod is fixed with screws on the upper end of the U-shaped docking frame.
[0005] Preferably, the scraper rod is composed of a triangular scraper, a limit baffle and screws, and the limit baffles are fixedly installed on both sides of the triangular scraper by screws.
[0006] Preferably, the spring pressure frame is composed of a guide rod, a front pressure spring, a moving slider and a rear stabilizing spring, and the guide rod body is sequentially positioned and installed with the front pressure spring, the moving slider and the rear stabilizing spring.
[0007] Preferably, the elastic coefficient of the front pressure spring is greater than the elastic coefficient of the rear stabilizing spring.
[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: the scraper rod is composed of a triangular scraper, a horizontal base plate, a limit baffle and a screw; the spring pressure frame is composed of a guide rod, a front pressure spring, a moving slider and a rear stabilizing spring; after the heat shrinkage operation of the adhesive middle wall tube, the U-shaped docking frame is docked with the outer diameter of the metal pipe fitting; the operating handle drives the mounting bracket to rotate around the metal pipe fitting; the scraper rod fits the adhesive middle wall tube; the triangular scraper scrapes the adhesive middle wall tube; the spring pressure frame elastically presses down the pressure roller; the pressure roller rolls down the adhesive middle wall tube, and the shape is sorted to remove the cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1This is a structural diagram of the utility model of the building welding protection tape adhesive middle wall tube;
[0010] Figure 2 This is a schematic diagram of the installation structure of the middle wall tube of the building welding protection tape of the utility model;
[0011] Figure 3 This is a schematic structural diagram of the scraper rod of the utility model;
[0012] Figure 4 This is a structural diagram of the spring pressure frame of the utility model.
[0013] In the figure: 1. Metal pipe, 2. Middle wall pipe with glue, 3. U-shaped docking frame, 4. Mounting bracket, 5. Pressure roller, 6. Handle, 7. Spring pressure frame, 8. Scraper rod, 9. Triangular scraper, 10. Limit baffle, 11. Screw, 12. Guide rod, 13. Front pressure spring, 14. Motion slider, 15. Rear stabilizing spring. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the present invention will be clearly and completely explained below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0015] like Figures 1-4 As shown, a construction welding protective adhesive medium wall pipe includes a metal pipe 1, an adhesive medium wall pipe 2, a U-shaped docking frame 3, a mounting bracket 4, a pressure roller 5, a grip 6, a spring pressure frame 7, and a scraper 8. After the two metal pipes 1 are welded and installed, the outer diameter is sleeved with the adhesive medium wall pipe 2, the U-shaped docking frame 3 and the mounting bracket 4 are positioned and welded, the U-shaped docking frame 3 is docked with the outer diameter of the metal pipe 1, the spring pressure frame 7 built into the through groove of the mounting bracket 4 positions and installs the pressure roller 5 through the rotating shaft, the front end of the mounting bracket 4 is positioned and installed with a grip 6, and the upper end of the U-shaped docking frame 3 is fixed with a scraper 8 with screws.
[0016] The scraper rod 8 is composed of a triangular scraper 9, a limit baffle 10 and a screw 11. The limit baffles 10 are fixed on both sides of the triangular scraper 9 by screws 11. The triangular scraper 9 scrapes the middle wall of the glue-coated tube to trim the shape and clear the cavity.
[0017] The spring pressure frame 7 is composed of a guide rod 12, a front pressure spring 13, a moving slider 14 and a rear stabilizing spring 15. The guide rod 12 is sequentially positioned and installed with the front pressure spring 13, the moving slider 14 and the rear stabilizing spring 15. The front pressure spring 13 elastically presses the pressure roller 5, and the pressure roller 5 rolls and presses the rubber-coated middle wall tube 2.
[0018] The elastic coefficient of the front pressure spring 13 is greater than the elastic coefficient of the rear stabilizing spring 15 . The front pressure spring 13 performs elastic downward compression, while the rear stabilizing spring 15 performs elastic reset design.
[0019] Specific usage: A construction welding protective adhesive medium wall tube. This device is designed for cavity cleaning operations after heat shrinkage of the adhesive medium wall tube. After the heat shrinkage of the adhesive medium wall tube, the U-shaped docking frame is docked with the outer diameter of the metal pipe fitting. The operating handle drives the mounting bracket to rotate around the metal pipe fitting. The scraper rod fits the adhesive medium wall tube and the triangular scraper scrapes the adhesive medium wall tube. The spring pressure frame elastically presses down the pressure roller, and the pressure roller rolls down the adhesive medium wall tube.
[0020] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, based on the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, replacements and variations made to the implementation methods are still within the scope of protection of the present invention.
Claims
1. A construction welding protective tape medium wall pipe, characterized in that: The utility model comprises a metal pipe (1), a middle wall pipe with glue (2), a U-shaped butt joint frame (3), a mounting bracket (4), a pressure roller (5), a grip (6), a spring pressure frame (7), and a scraper (8). After the two metal pipes (1) are welded and mounted, the outer diameter of the middle wall pipe with glue (2) is sleeved, the U-shaped butt joint frame (3) and the mounting bracket (4) are positioned and welded, the U-shaped butt joint frame (3) and the outer diameter of the metal pipe (1) are butt jointed, the spring pressure frame (7) built into the through groove of the mounting bracket (4) positions and mounts the pressure roller (5) through a rotating shaft, the front end of the mounting bracket (4) is positioned and mounted with a grip (6), and the upper end of the U-shaped butt joint frame (3) is fixed with a scraper (8) by screws.
2. The construction welding protective tape medium wall pipe according to claim 1, characterized in that: The scraper rod (8) is composed of a triangular scraper (9), a limiting baffle (10) and a screw (11), and the limiting baffle (10) is fixedly mounted on both sides of the triangular scraper (9) by means of the screws (11).
3. The construction welding protective tape medium wall pipe according to claim 1, characterized in that: The spring pressure frame (7) is composed of a guide rod (12), a front pressure spring (13), a moving slider (14) and a rear stabilizing spring (15), and the guide rod (12) is sequentially positioned and installed with the front pressure spring (13), the moving slider (14) and the rear stabilizing spring (15).
4. The construction welding protective tape adhesive medium wall pipe according to claim 3, characterized in that: The elastic coefficient of the front pressure spring (13) is greater than the elastic coefficient of the rear stabilizing spring (15).