High-temperature-resistant precision tube
By adopting an elastic connection design at the precision pipe connection and using elastic seats to provide elastic support for the bolts, the problem of easy loosening of conventional precision pipes after high temperature cooling is solved, and the butt stability under high temperature difference is achieved.
Patent Information
- Application Number
- CN202422314400.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The problem of loosening easily after cooling after high temperature at the joints of conventional precision pipes.
It adopts a high-temperature precision pipe design, including the pipe body, flange, elastic buckle, elastic seat and bolt. The elastic seat provides elastic support for the bolts, keeping the pipes elastically connected, making up for the gaps caused by thermal expansion and contraction, and improving docking stability.
It effectively improves the butt stability of the pipeline under high temperature difference, prevents the connection from being loose, and ensures reliable connection of the pipeline under high temperature environment.
Smart Images
Figure CN223019693U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of precision tubes, and particularly relates to a high-temperature resistant precision tube. Background Art
[0002] A precision tube is a high-precision and high-brightness seamless steel tube produced by cold drawing or cold rolling processes. Its inner and outer diameter dimensions can be accurate to within 0.2 mm. While ensuring the bending and torsional strength, it is relatively light in weight. Therefore, it is widely used in manufacturing precision mechanical parts and engineering structures. It is also commonly used in the production of various conventional weapons, gun barrels, shells, bearings, etc.
[0003] Since the precision tubes are connected by screws and then cooled after being expanded by high temperature, and the connection is a rigid connection, it is easy to become loose, resulting in the problem that the connection of conventional precision tubes is prone to looseness after cooling at high temperature.
[0004] Therefore, we propose a high-temperature resistant precision tube to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to solve the problem that the connection of conventional precision tubes is prone to looseness after cooling at high temperature, and a high-temperature resistant precision tube is proposed.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] The high-temperature resistant precision tube includes a tube body. A flange is fixedly connected to the outside of the tube body. A spring buckle is clamped on the outer circumference of the flange. A spring seat is fixedly connected to the lower end of the spring buckle. A bolt is movably inserted through the flange and the spring seat. After tightening the bolt with its nut and docking two pipes, the spring seat provides elastic support for the bolt, so that the two docked pipes are elastically connected. When the pipes expand due to high temperature or contract due to low temperature, the elastic force provided by the spring seat makes up for the gap caused by thermal expansion and contraction, improving the docking stability of the pipes under high temperature differences.
[0008] Preferably, the flange includes a flange body. A clamping groove is formed on the outer circumference of the flange body. A buckling groove is formed on the side of the clamping groove. The clamping groove facilitates the clamping of the spring buckle, and the buckling groove facilitates the buckling of the spring buckle with the flange body.
[0009] Preferably, a guiding surface is formed at the side end of the clamping groove. The guiding surface facilitates guiding the spring buckle into the clamping groove.
[0010] Preferably, the spring buckle includes a spring strip, a connecting block, and a buckling block. The spring strips are symmetrically fixedly connected to the side of the connecting block. The elastic force of the spring strips acts outward on the buckling block, keeping the buckling block in the buckling groove and facilitating the buckling of the spring buckle with the flange.
[0011] Preferably, the snap fastener further includes a first guiding block, which is fixedly connected to the buckle block integrally. The first guiding block facilitates guiding the buckle block into the card slot.
[0012] Preferably, the snap fastener further includes a second guiding block, which is fixedly connected to the buckle block integrally. When pulling out the snap fastener outward, the second guiding block is used to guide the buckle block out of the buckle slot, facilitating the removal of the snap fastener.
[0013] Preferably, the elastic seat includes a collar and elastic pieces, and the elastic pieces are symmetrically and fixedly connected to the side of the collar. After the bolt presses on the collar, the collar acts on the flange body through the elastic pieces, facilitating elastic compression of the flange.
[0014] In summary, the technical effects and advantages of the present utility model are as follows:
[0015] 1. After tightening the bolt and its nut and docking the two pipes, the elastic seat provides elastic support for the bolt, enabling the two docked pipes to maintain elastic connection. When the pipes expand due to high temperature or contract due to low temperature, the elastic force provided by the elastic seat compensates for the gap caused by thermal expansion and contraction, improving the docking stability of the pipes under high temperature differences.
[0016] 2. The elastic force of the elastic strip acts outward on the buckle block, keeping the buckle block in the buckle slot, facilitating the snap fastener to be buckled with the flange.
[0017] 3. After the bolt presses on the collar, the collar acts on the flange body through the elastic pieces, facilitating elastic compression of the flange. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0019] Figure 2 is a schematic diagram of the flange structure of the present utility model;
[0020] Figure 3 is a schematic diagram of the snap fastener structure of the present utility model;
[0021] Figure 4 is a schematic diagram of the elastic seat structure of the present utility model.
[0022] In the figure: 1, pipe body; 2, flange; 3, snap fastener; 4, elastic seat; 5, bolt; 21, flange body; 22, card slot; 23, buckle slot; 24, guiding surface; 31, elastic strip; 32, buckle block; 33, connecting block; 34, first guiding block; 35, second guiding block; 41, collar; 42, elastic pieces. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] 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 of the embodiments.
[0024] Referring to Figure 1 , the high-temperature resistant precision tube includes a tube body 1. A flange 2 is fixedly connected to the outside of the tube body 1. A snap button 3 is clamped on the outer circumference of the flange 2. A spring seat 4 is fixedly connected to the lower end of the snap button 3. A bolt 5 is movably inserted through the flange 2 and the spring seat 4.
[0025] Referring to Figure 1 and 2 , the flange 2 includes a flange body 21. The flange body 21 is fixedly connected to the outside of the tube body 1. A clamping groove 22 is formed on the outer circumference of the flange body 21. A buckle groove 23 is formed on the side of the clamping groove 22. The clamping groove 22 is used for clamping the snap button 3, and the snap button 3 is buckled with the flange body 21 through the buckle groove 23.
[0026] Referring to Figure 1 and 2 , a guiding surface 24 is formed at the side end of the clamping groove 22. The guiding surface 24 is used for guiding the snap button 3 to be inserted into the clamping groove 22.
[0027] Referring to Figure 1 , 2 and 3, the snap button 3 includes a spring strip 31, a connecting block 33 and a buckle block 32. The spring strip 31 is movably clamped in the clamping groove 22. The buckle block 32 is buckled in the buckle groove 23. The spring strip 31 is symmetrically fixedly connected to the side of the connecting block 33. The elastic force of the spring strip 31 acts outward on the buckle block 32 to keep the buckle block 32 in the buckle groove 23.
[0028] Referring to Figure 1 , 2 and 3, the snap button 3 further includes a first guiding block 34. The first guiding block 34 is movably embedded in the buckle groove 23. The first guiding block 34 is fixedly connected to the buckle block 32 as a whole. The first guiding block 34 is used for guiding the buckle block 32 into the clamping groove 22.
[0029] Referring to Figure 1 , 2 and 3, the snap button 3 further includes a second guiding block 35. The second guiding block 35 is movably embedded in the buckle groove 23. The second guiding block 35 is fixedly connected to the buckle block 32 as a whole. When the snap button 3 is pulled outwards, the second guiding block 35 is used for guiding the buckle block 32 to disengage from the buckle groove 23.
[0030] Referring to Figure 1 , 2, 3, and 4. The elastic seat 4 includes a collar 41 and a spring piece 42. The lower end of the connecting block 33 is fixedly connected to the upper end of the collar 41. The spring piece 42 is in movable contact with the flange body 21. The bolt 5 movably penetrates through the collar 41, and the spring pieces 42 are symmetrically and fixedly connected to the side of the collar 41. After the bolt 5 presses on the collar 41, the collar 41 acts on the flange body 21 through the spring pieces 42 to achieve elastic compression of the flange 2.
[0031] Working principle: After tightening the bolt 5 with its nut and docking the two pipes, the elastic seat 4 provides elastic support for the bolt 5 to keep the two docked pipes elastically connected. When the pipes expand due to high temperature or contract due to low temperature, the elastic force provided by the elastic seat 4 is used to make up for the gap caused by thermal expansion and contraction, achieving the docking stability under high temperature differences and playing the role of high temperature resistance after connection.
[0032] 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.
[0033] In the description, the application direction of the prior art that is known to those skilled in the art and has not been changed is simply mentioned for the utility model, and is combined with the utility model to form a complete technology; by avoiding over-popularizing the well-known technology of those skilled in the art, it is used to assist those skilled in the art to quickly understand the main content of the utility model.
Claims
1. High temperature resistant precision tube, characterized by: The invention comprises a tube body (1), the outside of which is fixedly connected to a flange (2), the outer periphery of which is clamped with a spring buckle (3), the lower end of which is fixedly connected to an elastic seat (4), and bolts (5) are movably inserted between the flange (2) and the elastic seat (4).
2. The high temperature resistant precision tube according to claim 1, characterized in that: The flange (2) comprises a flange body (21), the outer periphery of the flange body (21) is provided with a clamping groove (22), and the side of the clamping groove (22) is provided with a buckle groove (23).
3. The high temperature resistant precision tube according to claim 2, characterized in that: A guide surface (24) is provided at the side end of the clamping slot (22).
4. The high temperature resistant precision tube according to claim 1, characterized in that: The spring buckle (3) comprises a spring bar (31), a connecting block (33) and a buckle block (32), wherein the spring bar (31) is symmetrically fixedly connected to the side of the connecting block (33).
5. The high temperature resistant precision tube according to claim 4, characterized in that: The snap buckle (3) further comprises a first guide block (34), wherein the first guide block (34) is fixedly connected to the buckle block (32) as a whole.
6. The high temperature resistant precision tube according to claim 4, characterized in that: The snap button (3) further comprises a second guide block (35), wherein the second guide block (35) is fixedly connected to the buckle block (32) as a whole.
7. The high temperature resistant precision tube according to claim 1, characterized in that: The elastic seat (4) comprises a collar (41) and an elastic sheet (42), wherein the elastic sheet (42) is symmetrically fixedly connected to the side of the collar (41).