High-precision metal welded pipe joint
By using a tapered connection mechanism and rotating sleeve design in the metal welded pipe joint, the problems of inconvenience and misalignment in the existing welding technology are solved, and high-precision and efficient welding effects are achieved.
Patent Information
- Application Number
- CN202420492776.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-14
AI Technical Summary
In the existing metal pipe welding technology, in order to ensure welding quality, the joints and docking pipes need to be clamped or supported, which is inconvenient to operate and easily misaligned, affecting welding accuracy and efficiency.
A high-precision metal welded pipe joint was designed, using a tapered connection mechanism and a rotating sleeve. Through threaded connections and sliding rings, automatic alignment and stable welding of docking pipes and joint connection pipes were realized, simplifying operation and improving welding quality. .
Through the design of the tapered connection mechanism, the staff can align the joints and docking pipes by simply rotating the sleeve, reducing the risk of misalignment, improving welding accuracy and stability, reducing welding area and improving welding efficiency.
Smart Images
Figure CN222142274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe joints, in particular to a high-precision metal welded pipe joint. Background Art
[0002] Precision tube is a high-precision and high-brightness seamless steel tube produced by cold drawing or cold rolling process. Its inner and outer diameter dimensions can be accurate to within 0.2mm. While ensuring the same bending and torsional strength, it is light in weight, so it is widely used in the manufacture of precision mechanical parts and engineering structures.
[0003] Existing metal pipes that use argon arc welding, plasma welding and carbon dioxide welding usually use socket lap welding and butt welding methods. When performing butt welding, in order to ensure the welding quality and avoid misalignment between the joint and the butt pipe, during welding, it is often necessary to clamp the joint and the butt pipe together or other staff members are required to support the butt pipe or joint, which is inconvenient. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a high-precision metal welded pipe joint that can solve the problems of the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision metal welded pipe joint, comprising a joint body, both ends of the joint body are fixedly connected with joint connecting pipes, the opposite ends of the two joint connecting pipes are fixedly connected with a first tapered conical pipe, one end of the joint body is provided with a butt-joint pipe, and a connecting mechanism is provided between the joint body and the butt-joint pipe;
[0006] The connecting mechanism includes a mounting ring, one end of which is fixedly connected to the surface of the docking tube, an end of the mounting ring away from the docking tube is slidably connected to a conical second tapered tube, the inner wall of the second tapered tube is slidably connected to the surface of the first tapered tube, a fixing ring with a truncated cone-shaped cross-section is fixedly connected to the surface of the mounting ring, the inner wall of the fixing ring is slidably connected to the surface of the docking tube, and a rotating sleeve is sleeved on the surface of the fixing ring and the second tapered tube.
[0007] Preferably, an annular groove is formed at one end of the mounting ring away from the docking tube, and a sliding ring is fixedly connected to one end of the second tapered tube close to the mounting ring, and the surface of the sliding ring is slidably connected to the inner wall of the annular groove.
[0008] Preferably, a positioning strip is fixedly connected to the surface of the fixing ring, a sliding groove is provided on the inner wall of the rotating sleeve, and the surface of the positioning strip is slidably connected to the inner wall of the sliding groove.
[0009] Preferably, the surface of the rotating sleeve is provided with first through grooves arranged equidistantly around the circumference, the surface of the fixed ring is provided with second through grooves also arranged equidistantly around the circumference, and the surface of the second conical tube is also provided with third through grooves arranged equidistantly around the circumference, and the number of the first through grooves, the second through grooves and the third through grooves is the same.
[0010] Preferably, the first through groove, the second through groove and the third through groove are connected to each other, and the sizes of the first through groove, the second through groove and the third through groove are gradually reduced.
[0011] Preferably, the surface of the joint connecting pipe is provided with threads, and the rotating sleeve is threadedly connected to the surface of the joint connecting pipe through the threads.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] (1) The high-precision metal welded pipe joint, through the setting of the connecting mechanism, enables the workers to complete the alignment of the butt-tube and the joint connecting pipe by simply rotating the rotating sleeve when the diameters of the butt-tube and the joint connecting pipe are the same, which facilitates the workers' operation and reduces the difficulty of aligning the butt-tube and the joint connecting pipe. At the same time, it ensures the high precision of the subsequent welding between the butt-tube and the joint connecting pipe, avoids the misalignment between the butt-tube and the joint connecting pipe, and affects the welding effect between the butt-tube and the joint connecting pipe, thereby improving the welding quality between the butt-tube and the joint connecting pipe.
[0014] (2) In the high-precision metal welded pipe joint, the sizes of the first through groove, the second through groove and the third through groove are gradually reduced, so that the surfaces of the first tapered pipe, the second tapered pipe, the fixing ring and the first through groove can be presented in a stepped manner in front of the staff, so that when the staff performs subsequent welding, the first tapered pipe, the second tapered pipe, the fixing ring and the first through groove can all be welded together, thereby ensuring the stability of the welding between the butt-jointed pipe and the joint connecting pipe. At the same time, welding only needs to be performed inside the first through groove, thereby reducing the welding area and accelerating the welding effect while ensuring the connection strength between the butt-jointed pipe and the joint connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0016] Figure 1 This is a structural schematic diagram of a high-precision metal welded pipe joint of the utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the rotating sleeve of the utility model;
[0018] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;
[0019] Figure 4 For this utility model Figure 2 Enlarged schematic diagram of point B in the middle.
[0020] Figure numerals: 1. joint body; 2. butt tube; 3. rotating sleeve; 4. joint connecting tube; 5. thread; 6. first tapered tube; 7. first through groove; 8. second through groove; 9. second tapered tube; 10. third through groove; 11. fixing ring; 12. positioning strip; 13. slide groove; 14. ring groove; 15. sliding ring; 16. mounting ring. DETAILED DESCRIPTION
[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0022] See also Figure 1-4 The utility model provides a technical solution: a high-precision metal welded pipe joint, including a joint body 1, both ends of the joint body 1 are fixedly connected with joint connecting pipes 4, the opposite ends of the two joint connecting pipes 4 are fixedly connected with a conical first conical pipe 6, one end of the joint body 1 is provided with a butt pipe 2, and a connecting mechanism is provided between the joint body 1 and the butt pipe 2.
[0023] The connecting mechanism includes a mounting ring 16, one end of which is fixedly connected to the surface of the docking tube 2, and the end of the mounting ring 16 away from the docking tube 2 is slidably connected to a conical second tapered tube 9, and the end of the mounting ring 16 away from the docking tube 2 is provided with an annular groove 14, and the end of the second tapered tube 9 close to the mounting ring 16 is fixedly connected to a sliding ring 15, and the surface of the sliding ring 15 is slidably connected to the inner wall of the annular groove 14, so as to install the second tapered tube 9 and ensure the smooth relative movement between the second tapered tube 9 and the mounting ring 16.
[0024] The inner wall of the second tapered tube 9 is slidably connected to the surface of the first tapered tube 6, and a fixing ring 11 with a truncated cone-shaped cross section is fixedly connected to the surface of the mounting ring 16. The inner wall of the fixing ring 11 is slidably connected to the surface of the butt-joint tube 2. The fixing ring 11 and the surface of the second tapered tube 9 are sleeved with a rotating sleeve 3. The surface of the joint connecting tube 4 is provided with a thread 5. The rotating sleeve 3 is threadedly connected to the surface of the joint connecting tube 4 through the thread 5. Furthermore, through the setting of the thread 5, the staff can make a preliminary connection between the butt-joint tube 2 and the joint connecting tube 4 by rotating the rotating sleeve 3, thereby avoiding mutual misalignment between the butt-joint tube 2 and the joint connecting tube 4, thereby affecting the subsequent welding.
[0025] Furthermore, a positioning bar 12 is fixedly connected to the surface of the fixed ring 11, and a sliding groove 13 is provided on the inner wall of the rotating sleeve 3. The surface of the positioning bar 12 is slidably connected to the inner wall of the sliding groove 13, and then the installation of the rotating sleeve 3 is positioned by the setting of the positioning bar 12 and the sliding groove 13, and at the same time, it is ensured that the rotating sleeve 3 and the fixed ring 11 can move synchronously, thereby ensuring the smooth operation of the device.
[0026] Furthermore, the surface of the rotating sleeve 3 is provided with first through grooves 7 which are equidistantly arranged around the circumference, the surface of the fixing ring 11 is provided with second through grooves 8 which are also equidistantly arranged around the circumference, and the surface of the second tapered tube 9 is also provided with third through grooves 10 which are equidistantly arranged around the circumference. The number of the first through grooves 7, the second through grooves 8 and the third through grooves 10 is the same, the first through grooves 7, the second through grooves 8 and the third through grooves 10 are interconnected, and the sizes of the first through grooves 7, the second through grooves 8 and the third through grooves 10 are gradually reduced, so that the surfaces of the first tapered tube 6, the second tapered tube 9, the fixing ring 11 and the first through groove 7 can be presented in a stepped manner in front of the staff, so that when the staff performs subsequent welding, they can weld the first tapered tube 6, the second tapered tube 9, the fixing ring 11 and the first through groove 7 together, thereby ensuring the stability of the welding between the butt-jointed tube 2 and the joint connecting tube 4. At the same time, welding only needs to be performed inside the first through groove 7, thereby reducing the welding area and accelerating the welding effect while ensuring the connection strength between the butt-jointed tube 2 and the joint connecting tube 4.
[0027] Furthermore, when using the device, the staff first sleeves the second tapered tube 9 on the surface of the first tapered tube 6, and then sleeves the rotating sleeve 3 on the fixed ring 11, and then rotates the rotating sleeve 3. Since the rotating sleeve 3 is threadedly connected to the joint connecting tube 4 through the thread 5, as the rotating sleeve 3 rotates, the rotating sleeve 3 gradually approaches the joint connecting tube 4, thereby driving the fixed ring 11, the second tapered tube 9 and the butt joint tube 2 to gradually approach the joint connecting tube 4. Since the second tapered tube 9 and the first tapered tube 6 are both tapered, as the second tapered tube 9 slides on the surface of the first tapered tube 6, the second tapered tube 9 and the first tapered tube 6 are gradually pressed against each other, so that the center of the second tapered tube 9 gradually coincides with the center of the first tapered tube 6. Then, the center of the joint connecting pipe 4 is made to coincide with the center of the butt tube 2, thereby achieving alignment between the butt tube 2 and the joint connecting pipe 4. Furthermore, through the setting of the connecting mechanism, when the butt tube 2 and the joint connecting pipe 4 have the same diameter, the staff only needs to rotate the rotating sleeve 3 to complete the alignment of the butt tube 2 and the joint connecting pipe 4, which facilitates the operation of the staff and reduces the difficulty of aligning the butt tube 2 and the joint connecting pipe 4. At the same time, it ensures the high precision of the subsequent welding between the butt tube 2 and the joint connecting pipe 4, avoids misalignment between the butt tube 2 and the joint connecting pipe 4, and affects the welding effect between the butt tube 2 and the joint connecting pipe 4, thereby improving the welding quality between the butt tube 2 and the joint connecting pipe 4.
[0028] Secondly, to ensure the sealing between the first conical tube 6 and the second conical tube 9, a rubber pad can be provided on the inner wall of the second conical tube 9 to seal the gap between the first conical tube 6 and the second conical tube 9, thereby avoiding leakage after the device is welded.
[0029] Working principle: When using the device, the staff first puts the second tapered tube 9 on the surface of the first tapered tube 6, then puts the rotating sleeve 3 on the fixed ring 11, and then rotates the rotating sleeve 3. Since the rotating sleeve 3 is threadedly connected to the joint connecting tube 4 through the thread 5, as the rotating sleeve 3 rotates, the rotating sleeve 3 gradually approaches the joint connecting tube 4, thereby driving the fixed ring 11, the second tapered tube 9 and the butt joint tube 2 to gradually approach the joint connecting tube 4. Since the second tapered tube 9 and the first tapered tube 6 are both tapered, as the second tapered tube 9 slides on the surface of the first tapered tube 6, the second tapered tube 9 and the first tapered tube 6 are gradually pressed against each other, so that the center of the second tapered tube 9 gradually coincides with the center of the first tapered tube 6, and then the center of the joint connecting tube 4 coincides with the center of the butt joint tube 2, thereby achieving alignment between the butt joint tube 2 and the joint connecting tube 4.
[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A high-precision metal welded pipe joint, comprising a joint body (1), characterized in that: Both ends of the joint body (1) are fixedly connected to joint connecting pipes (4), and the opposite ends of the two joint connecting pipes (4) are fixedly connected to a first conical pipe (6) in a conical shape. A butt joint pipe (2) is provided at one end of the joint body (1), and a connecting mechanism is provided between the joint body (1) and the butt joint pipe (2); The connection mechanism comprises a mounting ring (16), one end of which is fixedly connected to the surface of the butt joint tube (2), an end of the mounting ring (16) away from the butt joint tube (2) is slidably connected to a second conical tube (9) in a conical shape, the inner wall of the second conical tube (9) is slidably connected to the surface of the first conical tube (6), the surface of the mounting ring (16) is fixedly connected to a fixing ring (11) having a truncated cone-shaped cross section, the inner wall of the fixing ring (11) is slidably connected to the surface of the butt joint tube (2), and a rotating sleeve (3) is sleeved on the surfaces of the fixing ring (11) and the second conical tube (9).
2. A high-precision metal welded pipe joint according to claim 1, characterized in that: An annular groove (14) is formed at one end of the mounting ring (16) away from the butt joint pipe (2); a sliding ring (15) is fixedly connected to one end of the second conical pipe (9) close to the mounting ring (16); and the surface of the sliding ring (15) is slidably connected to the inner wall of the annular groove (14).
3. The high-precision metal welded pipe joint according to claim 1, characterized in that: A positioning strip (12) is fixedly connected to the surface of the fixed ring (11), a sliding groove (13) is provided on the inner wall of the rotating sleeve (3), and the surface of the positioning strip (12) is slidably connected to the inner wall of the sliding groove (13).
4. The high-precision metal welded pipe joint according to claim 1, characterized in that: The surface of the rotating sleeve (3) is provided with first through grooves (7) arranged at equal distances around the circumference, the surface of the fixed ring (11) is provided with second through grooves (8) also arranged at equal distances around the circumference, and the surface of the second conical tube (9) is also provided with third through grooves (10) arranged at equal distances around the circumference, and the number of the first through grooves (7), the second through grooves (8) and the third through grooves (10) is the same.
5. A high-precision metal welded pipe joint according to claim 4, characterized in that: The first through groove (7), the second through groove (8) and the third through groove (10) are connected to each other, and the sizes of the first through groove (7), the second through groove (8) and the third through groove (10) are gradually reduced.
6. The high-precision metal welded pipe joint according to claim 1, characterized in that: The surface of the joint connecting pipe (4) is provided with threads (5), and the rotating sleeve (3) is threadedly connected to the surface of the joint connecting pipe (4) via the threads (5).