Connecting structure for slow cooling tube with protection function
The combined design of the fixed cylinder, conical seat and external protective plate solves the problems of unstable fixing and external protection of the slow cooling pipe connection structure, achieving efficient fixing and safe protection, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN GREAT DONG HAI IND GRP CO LTD
- Filing Date
- 2025-09-13
- Publication Date
- 2026-06-09
Smart Images

Figure CN224339659U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of connection structure technology, and specifically relates to a connection structure for a slow-cooling pipe with protective function. Background Technology
[0002] Slow-cooling pipes are pipe devices used to achieve slow cooling. They have different applications and structural characteristics in different fields. They are generally used in high-speed spinning, high-speed wire rod production processes in metallurgical production, and kiln cooling stages. Slow-cooling pipes require connection structures for fixation during installation.
[0003] The existing slow-cooling pipe connection structure is relatively simple, mainly consisting of a fixed cylinder, clamps, and stepped sections on both sides. After the slow-cooling pipe is fitted onto the stepped sections of the fixed cylinder, the clamps are tightened. Although this does not affect the flow of the internal medium, other problems exist during use. For example, the fixing effect is poor. During use, the internal medium of the slow-cooling pipe will generate impact. Under the impact, the pipe body will be pushed outward on the fixed cylinder. The clamps alone are not enough to keep it secure, which can easily cause the pipe to separate and cause medium leakage. The safety is poor, and it does not have external protection function. It cannot effectively shield the top of the connection structure. When an object falls from above and hits the fixed cylinder, the impact force can damage or even deform the fixed cylinder, affecting the normal use of the connection structure. Utility Model Content
[0004] The purpose of this utility model is to provide a connection structure for a slow-cooling pipe with protective function, which has the advantages of achieving good fixing effect and providing external protection function.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a connecting structure for a slow-cooling pipe with protective function, comprising a fixed cylinder, a hollow seat installed inside the fixed cylinder, tapered seats welded on both sides of the hollow seat, a fixed plate provided on both sides of the fixed cylinder, a fixed screw sleeve threadedly connected to the fixed cylinder installed on one side of the fixed plate, oblique grooves opened on opposite sides of the two fixed screw sleeves, two connecting plates welded to the surface of the fixed cylinder, an external protective plate provided on the top of the fixed cylinder, and lead screws symmetrically welded to the bottom of the external protective plate, with fixed nuts threadedly connected to the surface of the lead screws.
[0006] The above technical solution achieves good fixation, is simple and convenient to operate, avoids media leakage caused by pipeline separation, has high safety, and also has external protection function, reducing damage to the product caused by falling objects from above, extending the product's service life, and is highly practical.
[0007] The present invention is further provided that the inside of the fixing screw sleeve is provided with a groove, and a sealing ring is installed inside the groove.
[0008] By adopting the above technical solution, the sealing effect between the inside of the fixing screw sleeve and the slow cooling tube can be improved by setting the groove and sealing ring, preventing dust from entering.
[0009] The present invention is further provided that the top of the connecting plate has a through hole for use with the lead screw.
[0010] The above technical solution allows the lead screw at the bottom of the outer protective plate to pass through to the outside of the connecting plate during lowering, reducing the hassle of temporary drilling by personnel.
[0011] The present invention is further configured such that the length of the outer protective plate is greater than the length of the fixed cylinder.
[0012] The above technical solution can fully cover the top of the fixed cylinder, with a large coverage area.
[0013] The present invention is further provided that the surfaces of the fixing cylinder, the connecting plate and the outer protective plate are all coated with anti-corrosion coating.
[0014] By adopting the above technical solution, the anti-corrosion and moisture-proof effects of the surface of the fixing cylinder, connecting plate and external protective plate can be improved through the application of anti-corrosion coating.
[0015] The present invention is further configured such that both the lead screw and the fixing nut are made of stainless steel.
[0016] The above technical solution results in the lead screw and fixing nut having the characteristics of high strength, low density and excellent corrosion resistance.
[0017] In summary, this utility model has the following beneficial effects:
[0018] 1. First, pick up the two fixing sleeves and put them onto the two slow cooling tubes respectively. After the fixing sleeves are put on, pick up the fixing cylinder. After picking up the fixing cylinder, insert one end of the slow cooling tube into the fixing cylinder. After the slow cooling tube is inserted, it will be placed on the conical seat. Then push the slow cooling tube inward so that its head end expands outward with the slope of the conical seat. When the slow cooling tube is pushed all the way in, move the fixing sleeve toward the fixing cylinder. Then hold the fixing plate and rotate it to screw the fixing sleeve into the fixing cylinder. When the fixing sleeve is screwed in, the inclined groove at the head end will press against the expanded end of the slow cooling tube, which can achieve good fixing effect, simple and convenient operation, avoid medium leakage caused by pipe separation, and high safety.
[0019] 2. After connecting the slow cooling pipe, lift the outer protective plate with the end with the screw facing down, and then place the outer protective plate on the connecting plate. After the outer protective plate is placed, the screw at the bottom will pass through the through hole in the connecting plate. When the outer protective plate is lowered to the bottom and fits against the connecting plate, take out the fixing nut, screw it into the screw and tighten it. This provides external protection, reduces damage to the product caused by falling objects, extends the product's service life, and is highly practical. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is an exploded view of the structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the partial assembly and use of the structure of this utility model;
[0023] Figure 4 This is a partially enlarged sectional view of the structure of this utility model.
[0024] Reference numerals in the attached drawings: 1. Fixed cylinder; 2. Hollow seat; 3. Conical seat; 4. Fixed plate; 5. Fixed threaded sleeve; 6. Angled groove; 7. Connecting plate; 8. External protective plate; 9. Screw; 10. Fixed nut; 11. Groove; 12. Sealing ring. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings.
[0026] Example 1:
[0027] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A protective connecting structure for slow-cooling pipes includes a fixed cylinder 1, a hollow seat 2 installed inside the fixed cylinder 1, and tapered seats 3 welded to both sides of the hollow seat 2. Fixed plates 4 are provided on both sides of the fixed cylinder 1, and a fixing sleeve 5 threadedly connected to the fixed cylinder 1 is installed on one side of the fixing plate 4. An oblique groove 6 is provided on the opposite side of each of the two fixing sleeves 5. The two fixing sleeves 5 are first lifted and respectively fitted onto two slow-cooling pipes. After the fixing sleeves 5 are fitted, the fixed cylinder 1 is lifted. One end of the slow cooling tube is inserted into the fixed cylinder 1. After insertion, the slow cooling tube will be placed on the conical seat 3. Then, the slow cooling tube is pushed inward so that its head expands outward with the inclined surface of the conical seat 3. When the slow cooling tube is pushed all the way in, the fixing sleeve 5 is moved toward the fixed cylinder 1. Then, the fixing plate 4 is held and rotated so that the fixing sleeve 5 is screwed into the fixed cylinder 1. When the fixing sleeve 5 is screwed in, the inclined groove 6 at the head end will press against the expanded end of the slow cooling tube, which can achieve a good fixing effect, simple and convenient operation, avoid media leakage caused by pipe separation, and high safety.
[0028] refer to Figure 4 The fixing screw sleeve 5 has a groove 11 inside, and a sealing ring 12 is installed inside the groove 11. The groove 11 and the sealing ring 12 can improve the sealing effect between the inside of the fixing screw sleeve 5 and the slow cooling tube, and prevent dust from entering.
[0029] Brief description of the usage process: First, pick up the two fixing sleeves 5 and put them on the two slow cooling tubes respectively. After the fixing sleeves 5 are put on, pick up the fixing cylinder 1. After picking up the fixing cylinder 1, insert one end of the slow cooling tube into the fixing cylinder 1. After the slow cooling tube is inserted, it will be placed on the conical seat 3. Then push the slow cooling tube inward so that its head end expands outward with the inclined surface of the conical seat 3. When the slow cooling tube is pushed all the way in, move the fixing sleeve 5 toward the fixing cylinder 1. Then hold the fixing plate 4 and rotate it to screw the fixing sleeve 5 into the fixing cylinder 1. When the fixing sleeve 5 is screwed in, the inclined groove 6 at the head end will press against the expanded end of the slow cooling tube.
[0030] Example 2:
[0031] refer to Figure 1 , Figure 2 and Figure 3A connecting structure for a slow-cooling pipe with protective function is provided. Two connecting plates 7 are welded to the surface of the fixed cylinder 1. An external protective plate 8 is provided on the top of the fixed cylinder 1. A threaded rod 9 is symmetrically welded to the bottom of the external protective plate 8. A fixing nut 10 is threaded onto the surface of the threaded rod 9. After connecting through the slow-cooling pipe, the external protective plate 8 is lifted. After lifting the external protective plate 8, the end with the threaded rod 9 is facing down. Then, the external protective plate 8 is placed on the connecting plate 7. After the external protective plate 8 is placed, the threaded rod 9 at the bottom will pass through the through hole in the connecting plate 7. When the external protective plate 8 is lowered to the bottom and fits against the connecting plate 7, the fixing nut 10 is taken out, screwed into the threaded rod 9, and tightened. It can provide external protection, reduce the damage to the product caused by falling objects, extend the service life of the product, and has high practicality.
[0032] refer to Figure 2 The top of the connecting plate 7 is provided with a through hole for use with the lead screw 9. The through hole allows the lead screw 9 at the bottom of the outer protective plate 8 to pass through to the outside of the connecting plate 7 when it is lowered, reducing the trouble of temporary drilling by personnel.
[0033] refer to Figure 1 and Figure 2 The length of the outer protective plate 8 is greater than the length of the fixed cylinder 1, which can fully cover the top of the fixed cylinder 1, and the coverage area is large.
[0034] refer to Figure 1 , Figure 2 and Figure 3 The surfaces of the fixed cylinder 1, connecting plate 7 and outer protective plate 8 are all coated with anti-corrosion paint. The anti-corrosion and moisture-proof effects of the surfaces of the fixed cylinder 1, connecting plate 7 and outer protective plate 8 can be improved by the application of anti-corrosion paint.
[0035] refer to Figure 2 Both the lead screw 9 and the fixing nut 10 are made of stainless steel, and have the characteristics of high strength, low density and excellent corrosion resistance.
[0036] Brief description of the usage process: After the slow cooling pipe is connected, pick up the outer protective plate 8. After picking up the outer protective plate 8, place the end with the screw 9 downwards and then place the outer protective plate 8 on the connecting plate 7. After the outer protective plate 8 is placed, the screw 9 at the bottom will pass through the through hole in the connecting plate 7. When the outer protective plate 8 is lowered to the bottom and fits against the connecting plate 7, take out the fixing nut 10, screw it into the screw 9 and tighten it.
[0037] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.
[0038] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A connecting structure for a slow-cooling pipe with protective function, comprising a fixed cylinder (1), characterized in that: The fixed cylinder (1) is equipped with a hollow seat (2) inside. A conical seat (3) is welded to both sides of the hollow seat (2). A fixed plate (4) is provided on both sides of the fixed cylinder (1). A fixed screw sleeve (5) is installed on one side of the fixed plate (4) and is threaded to the fixed cylinder (1). An oblique groove (6) is opened on the opposite side of the two fixed screw sleeves (5). Two connecting plates (7) are welded to the surface of the fixed cylinder (1). An external protective plate (8) is provided on the top of the fixed cylinder (1). A lead screw (9) is symmetrically welded to the bottom of the external protective plate (8). A fixed nut (10) is threaded to the surface of the lead screw (9).
2. The connection structure for a slow-cooling pipe with protective function according to claim 1, characterized in that: The fixing screw sleeve (5) has a groove (11) inside, and a sealing ring (12) is installed inside the groove (11).
3. The connection structure for a slow-cooling pipe with protective function according to claim 1, characterized in that: The top of the connecting plate (7) is provided with a through hole for use with the lead screw (9).
4. The connection structure for a slow-cooling pipe with protective function according to claim 1, characterized in that: The length of the external protective plate (8) is greater than the length of the fixed cylinder (1).
5. A connection structure for a slow-cooling pipe with protective function according to claim 1, characterized in that: The surfaces of the fixed cylinder (1), connecting plate (7) and external protective plate (8) are all coated with anti-corrosion paint.
6. The connection structure for a slow-cooling pipe with protective function according to claim 1, characterized in that: Both the lead screw (9) and the fixing nut (10) are made of stainless steel.