Oxygen lance cooling water pipe capable of being quickly connected
By using a connecting plate and an arc-shaped plug with a compression spring, the problem of insufficient sealing and complicated connection of the oxygen lance cooling water pipe under high temperature and high pressure conditions is solved, enabling quick connection and disassembly, and improving operating efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional oxygen lance cooling water pipe connections are prone to loosening under high temperature and high pressure environments, resulting in insufficient sealing. Furthermore, the connection process is cumbersome and not conducive to quick installation and disassembly.
The system utilizes a connecting disc and an arc-shaped insert rod in conjunction with the elastic force of a compression spring. Through the matching and locking mechanism between the arc-shaped insert rod and the slot, it enables quick connection and disassembly, ensuring sealing and stability.
It enables quick connection and disconnection of the oxygen lance cooling water pipe, improving operational convenience and flexibility, and ensuring the sealing and stability of the connection.
Smart Images

Figure CN223992496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oxygen lance cooling water pipe technology, and more specifically, to an oxygen lance cooling water pipe that can be quickly connected. Background Technology
[0002] In high-temperature operating environments such as steel smelting and non-ferrous metal smelting, the stability and reliability of the oxygen lance's cooling system are crucial, as it is a key piece of equipment. The oxygen lance cooling water pipe, as an important component of the cooling system, undertakes the critical tasks of heat dissipation and maintaining a stable internal temperature of the oxygen lance. However, in practical applications, due to the complexity and uncertainty of the operating environment, the oxygen lance cooling water pipe often needs to be spliced and extended to adapt to different scales of smelting equipment and operational requirements.
[0003] Traditional oxygen lance cooling water pipe splicing methods mostly use threaded connections or flange connections. While these connection methods meet the connection requirements to a certain extent, they still have shortcomings in terms of sealing and stability. Threaded connections are prone to loosening under long-term high temperature and high pressure environments, leading to cooling water leakage and affecting the normal operation of the oxygen lance. While flange connections have better sealing performance, the connection process is cumbersome and requires professional tools and skills, which is not conducive to quick installation and disassembly. Therefore, in order to address the above technical problems, a quick-connect oxygen lance cooling water pipe is proposed. Utility Model Content
[0004] The purpose of this invention is to provide an oxygen lance cooling water pipe that can be quickly connected. Through the connection plate and the arc-shaped plug combined with the elastic force of the compression spring, not only is a tight connection and efficient sealing of the water pipe ensured during splicing, but the compression spring can also automatically pop out the arc-shaped plug during disassembly, thereby greatly simplifying the operation steps and improving the convenience and flexibility of use.
[0005] This utility model is achieved through the following technical solution:
[0006] A quick-connecting oxygen lance cooling water pipe includes a pipe body, a first connecting plate fixedly connected to one end of the pipe body, and a second connecting plate fixedly connected to the other end of the pipe body. The first connecting plate has an installation groove on its outer side and a locking groove on its inner side. An outward pushing mechanism is installed inside the locking groove. A connecting rod is fixedly connected to the outside of the second connecting plate, and an arc-shaped insert is fixedly connected to the outside of the connecting rod, the arc-shaped insert matching the installation groove and the locking groove. A connecting block is fixedly connected to the outside of the second connecting plate, and a connecting groove is formed inside the connecting block. A locking mechanism is installed outside the first connecting plate.
[0007] Preferably, a fixing sleeve is fixedly connected to one side of the first connecting plate, and a slot is provided on the outside of the fixing sleeve.
[0008] Preferably, a sealing ring is fixedly connected to the outside of the second connecting plate, and the sealing ring matches the slot. Both the fixing sleeve and the sealing ring are made of elastic material.
[0009] Preferably, the number of mounting slots and arc-shaped inserts are three sets, arranged in a ring.
[0010] Preferably, the outward pushing mechanism includes an arc-shaped telescopic rod, a stop block, and a compression spring. The arc-shaped telescopic rod is fixedly connected to the inner side of the slot, the stop block is fixedly connected to the end of the arc-shaped telescopic rod, and the compression spring is fixedly connected to the inner side of the slot. The end of the compression spring and the stop block are fixedly connected, and the arc-shaped telescopic rod is sleeved on the inner side of the compression spring.
[0011] Preferably, the locking mechanism includes a fixing block, a fixing rod, and a positioning hole. The fixing block is fixedly connected to the outside of the first connecting plate, the fixing rod is fixedly connected to the outside of the fixing block, and the fixing rod matches the connecting groove. The positioning hole is opened on the outside of the fixing rod and the connecting block, and the two sets of positioning holes match each other.
[0012] Preferably, the number of connecting blocks and fixing rods are four sets, arranged in a ring.
[0013] The technical solution of this utility model has at least the following beneficial effects:
[0014] This invention proposes a quick-connecting oxygen lance cooling water pipe. When the pipe needs to be extended, the arc-shaped insert is smoothly slid into the mounting groove by precisely aligning the first and second connecting discs. Simultaneously, the sealing ring tightly fits the slot under elastic action, ensuring the seal at the connection. As the two sets of water pipes rotate relative to each other, the end of the arc-shaped insert is pushed into the slot, and the compression spring is compressed. During this process, the fixing rod is also inserted into the connecting groove of the connecting block, and the two sets of positioning holes coincide. The fixing bolt and fastening nut further lock the connection, achieving a stable connection. When disassembling, simply loosen the bolt and nut, and the compression spring immediately releases its elasticity, automatically ejecting the arc-shaped insert from the slot, while simultaneously separating the fixing rod from the connecting block. The entire process is quick and simple, greatly improving operational efficiency and flexibility. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 for Figure 1 Enlarged view of A in the middle;
[0017] Figure 3 This is a schematic diagram of the second overall structure of the present invention;
[0018] Figure 4for Figure 3 Enlarged view of B in the middle;
[0019] Figure 5 This is a partial side sectional view of the present invention;
[0020] Figure 6 for Figure 5 Enlarged view of C;
[0021] Reference numerals in the attached drawings: 1. Water pipe body; 2. First connecting plate; 3. Second connecting plate; 4. Fixing sleeve; 5. Slot; 6. Sealing ring; 7. Mounting groove; 8. Slot; 9. Arc-shaped telescopic rod; 10. Abutment block; 11. Compression spring; 12. Connecting rod; 13. Arc-shaped insert rod; 14. Connecting block; 15. Connecting groove; 16. Fixing block; 17. Fixing rod; 18. Positioning hole. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-6 This utility model proposes a quick-connect oxygen lance cooling water pipe, including a water pipe body 1. One end of the water pipe body 1 is fixedly connected to a first connecting plate 2, and the other end of the water pipe body 1 is fixedly connected to a second connecting plate 3. The outer side of the first connecting plate 2 is provided with an installation groove 7, and the inner side of the installation groove 7 is provided with a locking groove 8. An outward pushing mechanism is installed on the inner side of the locking groove 8. A connecting rod 12 is fixedly connected to the outer side of the second connecting plate 3, and an arc-shaped insert rod 13 is fixedly connected to the outer side of the connecting rod 12. The arc-shaped insert rod 13 matches the installation groove 7 and the locking groove 8. A connecting block 14 is fixedly connected to the outer side of the second connecting plate 3, and a connecting groove 15 is provided on the inner side of the connecting block 14. A locking mechanism is installed on the outer side of the first connecting plate 2.
[0024] A fixing sleeve 4 is fixedly connected to one side of the first connecting plate 2. A slot 5 is provided on the outside of the fixing sleeve 4. The design of the slot 5 provides a precise mating space for the sealing ring 6, ensuring the sealing of the connection.
[0025] The second connecting plate 3 is externally fixedly connected with a sealing ring 6, and the sealing ring 6 matches the slot 5. Both the fixing sleeve 4 and the sealing ring 6 are made of elastic material. The choice of this elastic material allows the sealing ring 6 to deform under pressure, further enhancing the tightness of the connection and the sealing effect.
[0026] The number of mounting slots 7 and arc-shaped inserts 13 are three sets arranged in a ring. This ring arrangement not only enhances the stability of the connection, but also allows the water pipe to withstand uniform pressure in all directions.
[0027] The outward pushing mechanism includes an arc-shaped telescopic rod 9, a stop block 10, and a compression spring 11. The arc-shaped telescopic rod 9 is fixedly connected to the inner side of the slot 8, the stop block 10 is fixedly connected to the end of the arc-shaped telescopic rod 9, and the compression spring 11 is fixedly connected to the inner side of the slot 8. The end of the compression spring 11 is fixedly connected to the stop block 10. The arc-shaped telescopic rod 9 is sleeved on the inner side of the compression spring 11. The elastic force of the compression spring 11 allows the arc-shaped insert rod 13 to remain stable after being pushed into the slot 8, and it can automatically pop out during disassembly, simplifying the operation process.
[0028] The locking mechanism includes a fixing block 16, a fixing rod 17, and a positioning hole 18. The fixing block 16 is fixedly connected to the outside of the first connecting plate 2, and the fixing rod 17 is fixedly connected to the outside of the fixing block 16. The fixing rod 17 matches the connecting groove 15. The positioning hole 18 is opened on the outside of the fixing rod 17 and the connecting block 14, and the two sets of positioning holes 18 match each other. This design allows the water pipe to be further locked after connection by fixing bolts and fastening nuts, enhancing the stability of the connection.
[0029] The number of connecting blocks 14 and fixing rods 17 are four sets, arranged in a ring. This ring arrangement design further enhances the stability and load-bearing capacity of the connection, enabling the water pipe to maintain excellent performance even in complex environments.
[0030] The working principle of a quick-connect oxygen lance cooling water pipe based on the embodiment is as follows: When the oxygen lance cooling water pipe needs to be spliced and extended for use, two identical sets of the water pipe can be taken out first, and the first connecting plate 2 of one set of water pipe body 1 is brought close to the second connecting plate 3 of the other set of water pipe body 1. The arc-shaped insert 13 on the outside of the second connecting plate 3 is controlled to correspond with the mounting groove 7 on the outside of the first connecting plate 2. Then, the first connecting plate 2 and the second connecting plate 3 are brought close to each other, and the arc-shaped insert 13 is placed in the mounting groove 7. At the same time, the sealing ring 6 on the outside of the second connecting plate 3 is inserted into the slot 5 of the fixing sleeve 4 on the outside of the first connecting plate 2, and the two can be squeezed against each other. Since the fixing sleeve 4 and the sealing ring 6 are both made of elastic material, the two sets of water pipe body 1 can be tightly connected, ensuring the sealing of the connection.
[0031] Next, guided by slot 5, the two sets of water pipes can be rotated in opposite directions, so that the end of the arc-shaped plug 13 is placed against the outside of the abutment block 10, and the abutment block 10 is pushed into the slot 8, so that the arc-shaped plug 13 is fully inserted. At the same time, the compression spring 11 is compressed, and the fixing rod 17 outside the first connecting plate 2 will rotate and be inserted into the connecting groove 15 in the connecting block 14 until the two sets of positioning holes 18 are aligned. Then, the two sets of positioning holes 18 can be connected by fixing bolts and fastening nuts to realize the combined operation between the two sets of water pipes. In this way, on the one hand, the sealing after splicing can be guaranteed, and on the other hand, the stability of the structure after connection can be guaranteed.
[0032] Furthermore, during disassembly, simply remove the fixing bolts and fastening nuts between the two sets of positioning holes 18. The arc-shaped insert 13 will automatically pop out into the slot 8 under the elastic force of the compression spring 11, and at the same time, it will cause the fixing rod 17 to separate from the connecting block 14, thus realizing the quick disassembly of the spliced water pipe structure, which is quite convenient.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick connectable cooling water pipe for oxygen lance, characterized in that: The utility model provides a water pipe, including water pipe body (1), one end of water pipe body (1) is fixedly connected with first connecting disc (2), the other end of water pipe body (1) is fixedly connected with second connecting disc (3), the outside of first connecting disc (2) is opened with installation groove (7), the inside of installation groove (7) is opened with clamping groove (8), the inside of clamping groove (8) is installed with outer push mechanism, the outside of second connecting disc (3) is fixedly connected with connecting rod (12), the outside of connecting rod (12) is fixedly connected with arc insertion rod (13), and arc insertion rod (13) with installation groove (7) and clamping groove (8) between match, the outside of second connecting disc (3) is fixedly connected with connecting block (14), the inside of connecting block (14) is opened with connecting groove (15), the outside of first connecting disc (2) is installed with locking mechanism.
2. A quick connectable cooling water pipe for oxygen lance according to claim 1, characterized in that: One side of first connecting disc (2) is fixedly connected with fixed sleeve (4), the outside of fixed sleeve (4) is opened with insertion slot (5).
3. A quick connectable cooling water pipe for oxygen lance according to claim 2, characterized in that: The outside of second connecting disc (3) is fixedly connected with sealing ring (6), and sealing ring (6) with insertion slot (5) between match, fixed sleeve (4) and sealing ring (6) are all made of elastic material.
4. The quick connectable cooling water pipe for oxygen lance according to claim 1, characterized in that: The number of installation groove (7) and arc insertion rod (13) is three groups and is annular arrangement.
5. The quick connectable cooling water pipe for oxygen lance according to claim 1, wherein: The outer push mechanism includes arc expansion link (9), stopper (10) and compression spring (11), the inside of clamping groove (8) is fixedly connected with arc expansion link (9), the end of stopper (10) is fixedly connected with arc expansion link (9), the inside of clamping groove (8) is fixedly connected with compression spring (11), and the end of compression spring (11) and stopper (10) between fixedly connected, the inside of compression spring (11) is sleeved with arc expansion link (9).
6. A quick connectable cooling water pipe for oxygen lance according to claim 1, wherein: The locking mechanism includes fixed block (16), fixed rod (17) and positioning hole (18), the outside of first connecting disc (2) is fixedly connected with fixed block (16), the outside of fixed block (16) is fixedly connected with fixed rod (17), and fixed rod (17) with connecting groove (15) between match, the outside of fixed rod (17) and connecting block (14) is opened with positioning hole (18), and the positioning hole (18) between two groups match.
7. A quick connectable cooling water pipe for oxygen lance according to claim 6, characterized in that: The number of connecting block (14) and fixed rod (17) is four groups and is annular arrangement.