Quick-wear part quick replacement assembly for fire-fighting equipment maintenance
By designing quick-replacement components for the maintenance of fire protection facilities and using bolt and nut connections, the problems of unstable connections and cumbersome disassembly in existing technologies are solved, achieving stable connections and convenient replacement, thereby improving the maintenance efficiency and safety of fire protection facilities.
Patent Information
- Application Number
- CN202520361056.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing quick-connector connection method of fire protection facilities is too cumbersome and the connection is not secure enough. After long-term use, it is easy for the hose to fall off and leak, which affects the use effect.
A quick-replacement assembly for the maintenance of vulnerable parts of fire protection facilities has been designed, which includes a connecting cylinder, an upper half-circle, a lower half-circle, a rotating rod, a cylindrical sleeve, bolts, and a disassembly mechanism. The assembly achieves a stable connection through bolts and nuts and is equipped with a disassembly mechanism for easy replacement.
It enables stable connection of different types of hoses, preventing water leakage, and allows for easy disassembly and replacement of worn parts, improving the efficiency and safety of fire protection facility maintenance.
Smart Images

Figure CN223868773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of component replacement technology, and in particular to a quick replacement component for vulnerable parts in fire protection facility maintenance. Background Technology
[0002] Fire protection facility maintenance is a crucial step in ensuring the normal operation of fire protection facilities. This includes daily inspections and periodic maintenance. Daily inspections primarily involve checking the appearance and operational status of the facilities. For fire extinguishers, this includes checking the pressure (the pressure gauge should be in the green zone), inspecting the nozzle for damage, and ensuring the safety pin is intact. During maintenance, parts often need to be replaced. This is where quick-replacement components for vulnerable parts come in. These innovative devices are designed to improve the efficiency of fire protection facility maintenance. They primarily target easily damaged and frequently replaced parts, allowing for rapid replacement and significantly reducing downtime. This ensures the facilities are always available and can function properly in critical situations, effectively protecting fire safety. However, during fire protection maintenance, fire hoses often require replacement with the appropriate size.
[0003] The existing connection method is quick-connect coupling, which mainly consists of a connector, hose, and steel wire. A quick-connect coupling is a specially designed connector. When connecting the nozzle and hose, the male end of the quick-connect coupling is installed at one end of the hose, and the female end is installed at the nozzle interface. In use, simply align the male and female ends and insert them to quickly complete the connection. The operation process is extremely simple and can significantly shorten the installation time. The advantage of quick-connect coupling is its rapid installation and disassembly characteristics, which is very practical in scenarios where frequent replacement of nozzles or hoses is required, improving the maintenance efficiency of fire protection facilities. At the same time, its sealing performance can also meet the requirements of fire protection operations. However, this replacement method is too cumbersome and the connection is not secure enough. Long-term use can lead to hose detachment and leakage, affecting the performance. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a quick replacement component for vulnerable parts of fire protection facilities, which aims to improve the problems of the existing technology where the replacement method is too cumbersome and the connection is not firm enough, which can lead to hose detachment and leakage after long-term use, thus affecting the performance.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a quick-replacement assembly for vulnerable parts of fire protection facility maintenance, including a connecting cylinder. An upper half-circle is rotatably connected to the top of the outer wall of the connecting cylinder. Multiple connecting plates are fixedly connected to the rear side of the upper half-circle. A rotating rod is fixedly connected between adjacent connecting plates. A cylindrical sleeve is rotatably connected to the outer wall of the rotating rod. Multiple connecting plates are fixedly connected to the bottom of the outer wall of the cylindrical sleeve. A lower half-circle is fixedly connected to the bottom of each connecting plate. A connecting plate is fixedly connected to the front side of the lower half-circle. A circular hole is provided inside the connecting plate. A bolt is threaded onto the inner wall of the circular hole. A nut is fixedly connected to the lower end of the outer wall of the bolt. A disassembly mechanism is provided on the right side of the connecting cylinder for disassembly and fixation.
[0006] As a further description of the above technical solution:
[0007] The disassembly mechanism includes a buckle. The left side of the buckle is fixedly connected to the right side of the connecting cylinder. A sealing ring is slidably connected to the right side of the buckle. Multiple circular holes are provided on the left side of the sealing ring. Multiple square holes are provided on the right side of the sealing ring. Multiple square holes are provided on the right side of the connecting cylinder. A square connecting plate is slidably connected to the inner wall of the square hole. The outer wall of the square connecting plate is slidably connected to the inner wall of the square hole.
[0008] As a further description of the above technical solution:
[0009] A fixed cylinder is slidably connected to the right side of the connecting cylinder, and the left side of the fixed cylinder is fixedly connected to the right side of the square connecting plate.
[0010] As a further description of the above technical solution:
[0011] The right side of the fixed cylinder is connected to a ring near the middle, and a long groove is formed on the right side of the ring.
[0012] As a further description of the above technical solution:
[0013] Multiple support blocks are fixedly connected to the left side of the outer wall of the fixed cylinder, and the adjacent support blocks are fixedly connected to the outer wall of the ring.
[0014] As a further description of the above technical solution:
[0015] Multiple locking pins are fixedly connected to the left side of the ring near its edge, and a sealing ring II is fixedly connected to the inner wall of the ring.
[0016] As a further description of the above technical solution:
[0017] A connector is slidably connected to the right side of the ring, and the right side of the connector is slidably connected to the left side of the locking post.
[0018] As a further description of the above technical solution:
[0019] Multiple retaining rings are fixedly connected to the outer wall of the connecting cylinder near the middle, a fixing ring is fixedly connected to the left edge of the connecting cylinder, and a sealing ring is fixedly connected to the inner wall of the fixing ring.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, when it is necessary to connect the connector and the hose, first rotate the bolt away from the nut, then remove the nut, and then pull the bolt away from the connecting plate three. At this time, rotate the upper half turn, which will drive the circular hole two to rotate upward. At the same time, the upper half turn will drive the connecting plate one and the rotating rod to rotate inside the cylindrical sleeve. The cylindrical sleeve is fixed on the lower half turn. Then, the upper and lower half turns are opened, and the hose is placed on the connecting sleeve. At the same time, the upper half turn is snapped back, and the upper and lower half turns are snapped together. Then, the bolt is rotated back into the circular hole two on the connecting plate three. Finally, the nut is turned on, which realizes the function of connecting hoses of different models without leakage.
[0022] 2. In this utility model, when the connecting cylinder needs to be disassembled and repaired, first pull the connecting cylinder backward. At this time, the buckle on the connecting cylinder will leave the circular hole one on the fixed cylinder and the sealing ring one. At this time, the square connecting plate on the fixed cylinder will leave the square hole two and the square hole one. Then the connecting cylinder can be removed. When installation is required, the same principle applies. The buckle is locked in the circular hole one, and then the square connecting plate is locked inside the square hole one and the square hole two. At this time, it can be used normally, realizing the function of disassembling and replacing the parts when they are worn. Attached Figure Description
[0023] Figure 1 This is a front perspective view of the quick-replacement component for maintenance of fire-fighting facilities proposed in this utility model.
[0024] Figure 2 This is a left perspective view of the quick-replacement component for maintenance of fire-fighting facilities proposed in this utility model.
[0025] Figure 3 This is a partial structural disassembly diagram of the snap-fit component for quick replacement of vulnerable parts in fire protection facility maintenance proposed in this utility model.
[0026] Figure 4 This is a partial structural exploded view of the cylindrical sleeve of the quick-replacement component for the maintenance of fire-fighting facilities proposed in this utility model.
[0027] Figure 5 This is a partial structural exploded view of the bolts in the quick replacement component for easily damaged parts of fire protection facility maintenance proposed in this utility model.
[0028] Figure 6 This is a partial structural exploded view of the connector of the quick-replacement component for the maintenance of fire protection facilities proposed in this utility model.
[0029] Legend:
[0030] 1. Connecting cylinder; 2. Disassembly mechanism; 201. Buckle; 202. Sealing ring one; 203. Circular hole one; 204. Square hole one; 205. Square connecting plate; 206. Square hole two; 3. Upper half ring; 4. Connecting plate one; 5. Rotating rod; 6. Cylindrical sleeve; 7. Connecting plate two; 8. Lower half ring; 9. Bolt; 10. Connecting plate three; 11. Circular hole two; 12. Nut; 13. Fixing cylinder; 14. Support block; 15. Ring; 16. Long groove; 17. Clamping post; 18. Sealing ring two; 19. Connecting head; 20. Retaining ring; 21. Fixing ring; 22. Sealing ring three. Detailed Implementation
[0031] 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.
[0032] Please see the appendix Figure 4 Appendix Figure 5 and attached Figure 6 This utility model provides an embodiment of a quick replacement component for vulnerable parts of fire protection facilities, including a connecting cylinder 1, which makes the overall connection more stable. The top of the outer wall of the connecting cylinder 1 is rotatably connected to an upper half ring 3. Multiple connecting plates 1 4 are fixedly connected to the rear side of the upper half ring 3, making the overall connection more stable. Rotating rods 5 are fixedly connected between adjacent connecting plates 1 4. A cylindrical sleeve 6 is rotatably connected to the outer wall of the rotating rod 5. Multiple connecting plates 2 7 are fixedly connected to the bottom of the outer wall of the cylindrical sleeve 6. A lower half ring 8 is fixedly connected to the bottom of the connecting plates 2 7. A connecting plate 3 10 is fixedly connected to the front side of the lower half ring 8. A circular hole 2 11 is opened inside the connecting plate 3 10. A bolt 9 is threadedly connected to the inner wall of the circular hole 2 11. A nut 12 is fixedly connected to the lower end of the outer wall of the bolt 9, which plays a role in fixing and supporting. A disassembly mechanism 2 is provided on the right side of the connecting cylinder 1. The disassembly mechanism 2 is used for disassembly and fixing.
[0033] Specifically, the structure includes a connecting cylinder 1, the top of which is rotatably connected to an upper half ring 3. Multiple connecting plates 4 are evenly fixedly connected to the rear part of the upper half ring 3. These connecting plates 4 are adjacent to each other and a rotating rod 5 is fixedly connected between them. A cylindrical sleeve 6 is rotatably connected to the outer wall of the rotating rod 5. Multiple connecting plates 7 are evenly fixedly connected to the bottom of the outer wall of the cylindrical sleeve 6. A lower half ring 8 is fixedly connected to the bottom of the connecting plates 7. A connecting plate 3 10 is fixedly connected to the front part of the lower half ring 8. A circular hole 2 11 is opened inside the connecting plate 3 10. A bolt 9 is threadedly connected to the inner wall of the circular hole 2 11. A nut 12 is fixedly connected to the lower end of the outer wall of the bolt 9, thus forming a stable connection structure.
[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The disassembly mechanism 2 includes a buckle 201. The left side of the buckle 201 is fixedly connected to the right side of the connecting cylinder 1. A sealing ring 202 is slidably connected to the right side of the buckle 201, which improves the overall sealing performance. Multiple circular holes 203 are opened on the left side of the sealing ring 202, and multiple square holes 206 are opened on the right side of the sealing ring 202. Multiple square holes 204 are opened on the right side of the connecting cylinder 1. A square connecting plate 205 is slidably connected to the inner wall of the square hole 204. The outer wall of the square connecting plate 205 is slidably connected to the inner wall of the square hole 206, making the overall connection more stable.
[0035] Specifically, the disassembly mechanism 2 includes a buckle 201, which is fixedly connected to the right side of the connecting cylinder 1 on its left side. A sealing ring 202 is slidably connected to the right side of the buckle 201. The left side of the sealing ring 202 has multiple circular holes 203 to ensure the flexibility and sealing effect of the sealing ring 202. At the same time, multiple square holes 206 are opened on the right side of the sealing ring 202. These square holes 206 are also evenly distributed to accommodate the connection needs of other components. Multiple square holes 204 are opened on the right side of the connecting cylinder 1. The inner wall of the square holes 204 is designed to be slidably connected to a square connecting plate 205. The outer wall of the square connecting plate 205 is slidably connected to the inner wall of the square holes 206, thereby realizing the flexible movement and stable connection of the entire disassembly mechanism 2.
[0036] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 5A fixed cylinder 13 is slidably connected to the right side of the connecting cylinder 1. The left side of the fixed cylinder 13 is fixedly connected to the right side of the square connecting plate 205. A ring 15 is connected to the right side of the fixed cylinder 13 near the middle, which plays a fixing role. A long groove 16 is opened on the right side of the ring 15. Multiple support blocks 14 are fixedly connected to the left side of the outer wall of the fixed cylinder 13, making the overall connection more stable. The adjacent support blocks 14 are fixedly connected to the outer wall of the ring 15.
[0037] Specifically, the right side of the connecting cylinder 1 is slidably connected to a fixed cylinder 13. The left side of the fixed cylinder 13 is firmly connected to the right edge of the square connecting plate 205. To ensure the stability of the structure, an annular ring 15 is provided near the center of the right side of the fixed cylinder 13. A long groove 16 is opened on the right edge of the ring 15. In addition, to further enhance the stability between the connecting cylinder 1 and the fixed cylinder 13, multiple support blocks 14 are uniformly fixedly connected to the left side of the outer wall of the fixed cylinder 13. These support blocks 14 not only provide additional support, but also are firmly connected to the outer wall of the ring 15 between their adjacent parts, thus forming a sturdy support structure.
[0038] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 Multiple locking pins 17 are fixedly connected to the left side of the ring 15 near the edge. A sealing ring 2 18 is fixedly connected to the inner wall of the ring 15. A connector 19 is slidably connected to the right side of the ring 15 for easy connection. The right side of the connector 19 is slidably connected to the left side of the locking pins 17. Multiple retaining rings 20 are fixedly connected to the outer wall of the connecting cylinder 1 near the middle for shielding. A fixing ring 21 is fixedly connected to the left edge of the connecting cylinder 1. A sealing ring 3 22 is fixedly connected to the inner wall of the fixing ring 21 for more stable overall fixation.
[0039] Specifically, several locking posts 17 are fixedly connected near the left edge of the ring 15. These locking posts 17 are designed to ensure the stability of the ring 15 during use. A sealing ring 2 18 is fixedly installed on the inner wall of the ring 15. The function of this sealing ring 2 18 is to ensure the sealing performance inside the ring 15 and prevent leakage of liquid or gas. In addition, a connector 19 is slidably connected to the right edge of the ring 15, allowing the connector 19 to slide on the right side of the ring 15 to adapt to different usage requirements. The right side of the connector 19 is slidably connected to the left side of the locking posts 17. This allows for flexible relative movement between the connector 19 and the locking post 17. Multiple retaining rings 20 are fixedly connected to the outer wall near the middle. These retaining rings 20 are used to prevent the connecting cylinder 1 from slipping accidentally during use. A fixing ring 21 is fixedly connected to the left edge of the connecting cylinder 1. This fixing ring 21 is designed to further enhance the stability of the connecting cylinder 1. A sealing ring 22 is also fixedly installed on the inner wall of the fixing ring 21. The function of this sealing ring 22 is to ensure the sealing performance inside the fixing ring 21, thereby ensuring the sealing effect of the entire device.
[0040] Working principle: When it is necessary to connect the connector 19 and the hose, first rotate the bolt 9 away from the nut 12, then remove the nut 12, and then lift the bolt 9 away from the connecting plate 10. At this time, rotate the upper half circle 3, which will drive the circular hole 11 to rotate upward. At the same time, the upper half circle 3 will drive the connecting plate 4 and the rotating rod 5 to rotate inside the cylindrical sleeve 6. The cylindrical sleeve 6 is fixed on the lower half circle 8. Then, the upper half circle 3 and the lower half circle 8 are opened. At this time, the hose is placed on the connecting sleeve 1, and the upper half circle 3 is snapped back. At this time, the upper half circle 3 and the lower half circle 8 are snapped together. Then, the bolt 9 is rotated back into the circular hole 11 on the connecting plate 10. Finally, the nut 12 is turned on, which realizes the function of connecting different types of hoses without leakage.
[0041] When the connecting cylinder 1 needs to be disassembled and repaired, first pull the connecting cylinder 1 backward. At this time, the buckle 201 on the connecting cylinder 1 will be released from the circular hole 203 on the fixing cylinder 13 and the sealing ring 202. At this time, the square connecting plate 205 on the fixing cylinder 13 will be released from the square hole 206 and the square hole 204. Then the connecting cylinder 1 can be removed. When installation is required, the same method is used. The buckle 201 is locked in the circular hole 203, and the square connecting plate 205 is locked in the square hole 204 and the square hole 206. At this time, it can be used normally, realizing the function of disassembling and replacing the parts when they are worn.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A quick-replacement assembly for vulnerable parts of fire protection facility maintenance, including a connecting cylinder (1), characterized in that: The top of the outer wall of the connecting cylinder (1) is rotatably connected to an upper half ring (3). Multiple connecting plates (4) are fixedly connected to the rear side of the upper half ring (3). Rotating rods (5) are fixedly connected between adjacent connecting plates (4). A cylindrical sleeve (6) is rotatably connected to the outer wall of the rotating rod (5). Multiple connecting plates (7) are fixedly connected to the bottom of the outer wall of the cylindrical sleeve (6). A lower half ring (8) is fixedly connected to the bottom of the connecting plate (7). A connecting plate (10) is fixedly connected to the front side of the lower half ring (8). A circular hole (11) is opened inside the connecting plate (10). A bolt (9) is threadedly connected to the inner wall of the circular hole (11). A nut (12) is fixedly connected to the lower end of the outer wall of the bolt (9). A disassembly mechanism (2) is provided on the right side of the connecting cylinder (1). The disassembly mechanism (2) is used for disassembly and fixing.
2. The quick-replacement assembly for vulnerable parts of fire protection facility maintenance according to claim 1, characterized in that: The disassembly mechanism (2) includes a buckle (201). The left side of the buckle (201) is fixedly connected to the right side of the connecting cylinder (1). A sealing ring (202) is slidably connected to the right side of the buckle (201). Multiple circular holes (203) are provided on the left side of the sealing ring (202). Multiple square holes (206) are provided on the right side of the sealing ring (202). Multiple square holes (204) are provided on the right side of the connecting cylinder (1). A square connecting plate (205) is slidably connected to the inner wall of the square hole (204). The outer wall of the square connecting plate (205) is slidably connected to the inner wall of the square hole (206).
3. The quick-replacement assembly for vulnerable parts of fire protection facility maintenance according to claim 1, characterized in that: A fixed cylinder (13) is slidably connected to the right side of the connecting cylinder (1), and the left side of the fixed cylinder (13) is fixedly connected to the right side of the square connecting plate (205).
4. The quick-replacement component for vulnerable parts of fire protection facility maintenance according to claim 3, characterized in that: The right side of the fixed cylinder (13) is connected to a ring (15) near the middle, and a long groove (16) is provided on the right side of the ring (15).
5. The quick-replacement component for vulnerable parts of fire protection facility maintenance according to claim 3, characterized in that: Multiple support blocks (14) are fixedly connected to the left side of the outer wall of the fixed cylinder (13), and the adjacent support blocks (14) are fixedly connected to the outer wall of the ring (15).
6. The quick-replacement assembly for vulnerable parts of fire protection facility maintenance according to claim 4, characterized in that: Multiple locking pins (17) are fixedly connected to the left side of the ring (15) near the edge, and a sealing ring (18) is fixedly connected to the inner wall of the ring (15).
7. The quick-replacement assembly for vulnerable parts of fire protection facility maintenance according to claim 4, characterized in that: The right side of the ring (15) is slidably connected to a connector (19), and the right side of the connector (19) is slidably connected to the left side of the locking post (17).
8. The quick-replacement assembly for vulnerable parts of fire protection facility maintenance according to claim 1, characterized in that: Multiple retaining rings (20) are fixedly connected to the outer wall of the connecting cylinder (1) near the middle. A fixing ring (21) is fixedly connected to the left edge of the connecting cylinder (1). A sealing ring (22) is fixedly connected to the inner wall of the fixing ring (21).