Stainless steel pipe assembly
Through the combined structure of the expansion shell and threaded core, the problem of insufficient assembly stability of stainless steel pipes is solved, and a higher stress range and stability are achieved.
Patent Information
- Application Number
- CN202422493917.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-15
AI Technical Summary
Conventional stainless steel pipes have low stability after assembly and rely mainly on screw fixation, resulting in easy shaking.
The expansion shell and threaded core structure are adopted to fix the stainless steel pipes through the expansion shell to increase the locking range, and the coordination of the threaded ring and threaded core is used to increase the force range.
It improves the stability of stainless steel pipes after assembly, enhances the fixing effect, and is more stable than the traditional screw fixing method.
Smart Images
Figure CN223153023U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of stainless steel pipes, and particularly relates to a stainless steel pipe assembly. Background Art
[0002] Stainless steel pipes are a kind of hollow long round steel, mainly widely used in industrial conveying pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments, etc. and mechanical structure parts, etc. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in manufacturing mechanical parts and engineering structures. It is also commonly used as furniture and kitchen utensils, etc.
[0003] Between stainless steel pipes, mainly screws are passed through two stainless steel pipes to fix the two. The force mainly depends on the screw body. The force range between the screw and the stainless steel pipe is relatively small, and it is easy to shake after docking, thus causing the problem that the stability of conventional stainless steel pipes and the assembled ones is relatively low.
[0004] Therefore, we propose a stainless steel pipe assembly to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to solve the problem that the stability of conventional stainless steel pipes and the assembled ones is relatively low, and to propose a stainless steel pipe assembly.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A stainless steel pipe assembly includes a rusty steel pipe. An expansion shell is inserted into the interior of the rusty steel pipe. A threaded core is movably inserted into the interior of the expansion shell. A threaded ring is slidably sleeved on the threaded core. A bent pipe is threadedly installed on the upper part of the threaded core. The expansion shell is sleeved on the threaded core, then the threaded ring is sleeved on the threaded core, then the threaded core is screwed into the bent pipe, then the rusty steel pipe is sleeved on the expansion shell, and then the threaded ring is screwed by a wrench. The threaded ring drives the threaded core to move towards the inner side of the bent pipe. The warm bent pipe supports the threaded ring. Through the action of the threaded ring on the expansion shell, the threaded core is extruded into the expansion shell, so that the expansion shell expands outwards against the rusty steel pipe, and the rusty steel pipe is fixed on the bent pipe, realizing the assembly and fixation of the rusty steel pipe and the bent pipe. Fixed by the expansion of the expansion shell, the locking range is increased. Compared with the direct penetration method of the screw, the force range is increased, thereby improving the stability after assembly.
[0008] Preferably, the bent pipe includes a bent pipe body and an annular threaded seat, and the annular threaded seat is fixedly connected to the outer end of the bent pipe body. When docking the threaded core with the bent pipe, the bent pipe is screwed into the annular threaded seat to dock the bent pipe with the threaded core.
[0009] Preferably, the threaded core includes a threaded post and a first extrusion block, and an anti-rotation surface is provided on the outer part of the threaded post. The anti-rotation surface is used to prevent relative rotation between the threaded ring and the threaded core, facilitating the threaded ring to drive the threaded post to rotate, and thus facilitating screwing the threaded post into the elbow pipe.
[0010] Preferably, the threaded core further includes a first guiding block, and the lower end of the first guiding block is fixedly connected to the upper end of the threaded post. When assembling the elbow pipe and the threaded core, the first guiding block is used to guide the threaded post into the annular threaded seat, and then the threaded core is tightened, facilitating the docking of the threaded core and the elbow pipe.
[0011] Preferably, the expansion shell includes a collar, elastic pieces, a second extrusion block, and anti-slip strips. The elastic pieces are uniformly fixedly connected to the lower end of the collar, the second extrusion block is fixedly connected to the lower end of the elastic pieces, and the anti-slip strips are uniformly fixedly connected to the outside of the second extrusion block. When an outward acting force is applied to the second extrusion block, the second extrusion block acts outward on the inside of the rusty steel pipe, facilitating the fixation of the expansion shell and the rusty steel pipe.
[0012] Preferably, the expansion shell further includes a second guiding block, and the second guiding block is fixedly connected to the lower end of the second extrusion block. The second guiding block facilitates guiding the second extrusion block into the rusty steel pipe.
[0013] Preferably, the threaded ring includes a ring body, and wrench clamping surfaces are symmetrically provided on the side of the ring body. The wrench clamping surfaces facilitate the wrench to clamp and screw the threaded ring.
[0014] In summary, the technical effects and advantages of the present utility model are as follows:
[0015] 1. The expansion shell is sleeved on the threaded core, then the threaded ring is sleeved on the threaded core, then the threaded core is screwed into the elbow pipe, then the rusty steel pipe is sleeved on the expansion shell, and then the threaded ring is screwed by a wrench. The threaded ring drives the threaded core to move towards the inner side of the elbow pipe, and the elbow pipe supports the threaded ring. The threaded ring acts on the expansion shell, causing the threaded core to squeeze into the expansion shell, making the expansion shell expand outward the rusty steel pipe, fixing the rusty steel pipe on the elbow pipe, realizing the assembly and fixation of the rusty steel pipe and the elbow pipe. By the expansion method of the expansion shell for fixation, the locking range is increased, and compared with the direct penetration method of screws, the stress range is improved, thereby improving the stability after assembly.
[0016] 2. The anti-rotation surface is used to prevent relative rotation between the threaded ring and the threaded core, facilitating the threaded ring to drive the threaded post to rotate, and thus facilitating screwing the threaded post into the elbow pipe.
[0017] 3. When assembling the elbow pipe and the threaded core, the first guiding block is used to guide the threaded post into the annular threaded seat, and then the threaded core is tightened, facilitating the docking of the threaded core and the elbow pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Schematic diagram of the overall disassembly structure of the present utility model;
[0019] Figure 2 Schematic diagram of the elbow structure of the present utility model;
[0020] Figure 3 Schematic diagram of the threaded core structure of the present utility model;
[0021] Figure 4 Schematic diagram of the expansion shell structure of the present utility model;
[0022] Figure 5 Schematic diagram of the threaded ring structure of the present utility model.
[0023] In the figure: 1, rust-proof steel pipe; 2, elbow; 3, threaded core; 4, expansion shell; 5, threaded ring; 21, bent pipe body; 22, annular threaded seat; 31, threaded column; 32, first guiding block; 33, first pressing block; 41, collar; 42, elastic piece; 43, second pressing block; 44, anti-slip strip; 45, second guiding block; 51, ring body; 52, wrench clamping surface. Specific embodiments
[0024] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.
[0025] Refer to Figure 1 , a stainless steel pipe assembly, including a rust-proof steel pipe 1, an expansion shell 4 is inserted inside the rust-proof steel pipe 1, a threaded core 3 is movably inserted inside the expansion shell 4, a threaded ring 5 is slidably sleeved on the threaded core 3, and an elbow 2 is threadedly installed on the upper part of the threaded core 3.
[0026] Refer to Figure 1 and 2 , the elbow 2 includes a bent pipe body 21 and an annular threaded seat 22, and the annular threaded seat 22 is fixedly connected to the outer end of the bent pipe body 21. When docking the threaded core 3 with the elbow 2, screw the elbow 2 into the annular threaded seat 22 to dock the elbow 2 with the threaded core 3.
[0027] Refer to Figure 1 and 3 , the threaded core 3 includes a threaded column 31 and a first pressing block 33, and an anti-rotation surface is provided on the outside of the threaded column 31. The anti-rotation surface is used to prevent relative rotation between the threaded ring 5 and the threaded core 3.
[0028] Refer to Figure 1 , 2As shown in FIGS. 2 and 3, the threaded core 3 further includes a first guiding block 32, and the lower end of the first guiding block 32 is fixedly connected to the upper end of the threaded post 31. When assembling the elbow pipe 2 and the threaded core 3, the threaded post 31 is guided into the annular threaded seat 22 by means of the first guiding block 32, and then the threaded core 3 is tightened.
[0029] Referring to Figure 1 , 3 As shown in FIGS. 3 and 4, the expansion shell 4 includes a collar 41, a spring piece 42, a second extrusion block 43 and an anti-slip strip 44. The collar 41 is movably sleeved on the threaded post 31, the second extrusion block 43 is in movable contact with the first extrusion block 33, the spring pieces 42 are uniformly fixedly connected to the lower end of the collar 41, the second extrusion block 43 is fixedly connected to the lower end of the spring piece 42, and the anti-slip strips 44 are uniformly fixedly connected to the outside of the second extrusion block 43. When an outward acting force is applied to the second extrusion block 43, the second extrusion block 43 acts outwardly on the inside of the rusty steel pipe 1.
[0030] Referring to Figure 1 and 4 , the expansion shell 4 further includes a second guiding block 45, and the second guiding block 45 is fixedly connected to the lower end of the second extrusion block 43. The second extrusion block 43 is guided into the rusty steel pipe 1 by means of the second guiding block 45.
[0031] Referring to Figure 1 , 3 As shown in FIGS. 4 and 5, the threaded ring 5 includes a ring body 51. The ring body 51 is slidably sleeved on the threaded post 31, and wrench clamping surfaces 52 are symmetrically formed on the side of the ring body 51. A wrench is sleeved on the wrench clamping surface 52, and the ring body 51 is rotated by means of the wrench.
[0032] Working principle: The expansion shell 4 is sleeved on the threaded core 3, then the threaded ring 5 is sleeved on the threaded core 3, then the threaded core 3 is screwed into the elbow pipe 2, then the rusty steel pipe 1 is sleeved on the expansion shell 4, and then the threaded ring 5 is rotated by means of a wrench. The threaded core 3 is driven by the threaded ring 5 to move towards the inner side of the elbow pipe 2. The elbow pipe 2 supports the threaded ring 5, and the threaded ring 5 acts on the expansion shell 4, so that the threaded core 3 is extruded into the expansion shell 4, causing the expansion shell 4 to expand the rusty steel pipe 1 outward, fixing the rusty steel pipe 1 on the elbow pipe 2, realizing the assembly and fixation of the rusty steel pipe 1 and the elbow pipe 2. By fixing in the way of the expansion of the expansion shell 4, the locking range is increased, and the stress range is improved compared with the direct penetration method of screws.
[0033] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the utility model.
[0034] The description briefly mentions the application direction of the prior art that is known to those skilled in the art and has not been changed for the utility model, and combines with the utility model to form a complete technology; it adopts the method of avoiding over-popularizing the well-known technology of those skilled in the art to assist those skilled in the art to quickly understand the main content of the utility model.
Claims
1. A stainless steel pipe assembly, characterized in that: It includes a rusty steel pipe (1), an expansion shell (4) is inserted inside the rusty steel pipe (1), a threaded core (3) is movably inserted inside the expansion shell (4), a threaded ring (5) is slidably sleeved on the threaded core (3), and an elbow pipe (2) is threadedly installed on the upper part of the threaded core (3).
2. A stainless steel pipe assembly according to claim 1, characterized in that: The elbow pipe (2) includes a bent pipe body (21) and an annular threaded seat (22), and the annular threaded seat (22) is fixedly connected to the outer end of the bent pipe body (21).
3. A stainless steel pipe assembly according to claim 1, characterized in that: The threaded core (3) includes a threaded column (31) and a first extrusion block (33), and an anti-rotation surface is provided on the outer part of the threaded column (31).
4. A stainless steel pipe assembly according to claim 3, wherein: The threaded core (3) further includes a first guiding block (32), and the lower end of the first guiding block (32) is fixedly connected to the upper end of the threaded column (31).
5. A stainless steel pipe assembly according to claim 1, characterized in that: The expansion shell (4) includes a collar (41), a spring piece (42), a second extrusion block (43) and an anti-slip strip (44), the spring piece (42) is uniformly fixedly connected to the lower end of the collar (41), the second extrusion block (43) is fixedly connected to the lower end of the spring piece (42), and the anti-slip strip (44) is uniformly fixedly connected to the outside of the second extrusion block (43).
6. A stainless steel pipe assembly according to claim 5, characterized in that: The expansion shell (4) further includes a second guiding block (45), and the second guiding block (45) is fixedly connected to the lower end of the second extrusion block (43).
7. A stainless steel pipe assembly according to claim 1, wherein: The threaded ring (5) includes a ring body (51), and wrench clamping surfaces (52) are symmetrically provided on the side of the ring body (51).