Fire-fighting pipe joint for building

Abstract

The utility model provides a building fire protection pipeline connector, relate to fire protection pipeline construction field, the utility model discloses two clamps, two bolts, two nuts and sealing rings, two bolts are respectively inserted in the inner wall of both ends of two clamps, the utility model can first manually with the clamping rod in the inner wall of card hole and pull out to certain position, drive the spring to shrink, then again with the nut screw is equipped on the one end of bolt external surface and is tightened, finally loosens the clamping rod, makes it under the reset action of spring and clamps into the corresponding clamping groove on the nut external surface and carries out location fixing to it, and simultaneously with the help of auxiliary mechanism carries out secondary fixed location, thereby can make the clamping ring in the connecting use process to fire protection pipeline, through multiple fixed mode realizes effective location, avoids the loose of connecting part in the use process, thereby prevents the leakage condition from happening, reduces fire control system failure, guarantees the stable reliable of pipeline connection.

Description

Technical Field

[0001] This utility model relates to the field of fire protection pipeline construction, and in particular to fire protection pipeline connectors for buildings. Background Technology

[0002] Connectors are special fittings used in building fire protection systems to connect different pipe components or equipment. The main function of these connectors is to ensure the tight connection, sealing and strength of each part of the fire protection piping system, thereby ensuring that the fire water system can operate normally in the event of a fire and provide sufficient fire extinguishing water in a timely manner.

[0003] In building fire protection systems, pipe connections are a crucial component for ensuring the normal transmission of fire-fighting water. Traditional fire-fighting pipe connections primarily utilize methods such as flange connections, threaded connections, and clamp connections. These methods, to a certain extent, guarantee the sealing and stability of the fire-fighting pipe system. Clamp connections, as a common method, typically achieve a sealed connection through clamps and sealing rings. However, during long-term use, especially under conditions of high pressure and vibration, the bolts and nuts at the clamp connections are prone to stripping and loosening, leading to leaks at the connection points. In severe cases, this can cause malfunctions in the fire protection system and affect fire-fighting effectiveness. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the clamp connection method is a common fire pipe connection method. This method usually achieves the sealing connection of the pipe through clamps and sealing rings. However, during long-term use, especially when the pipe is subjected to greater pressure and vibration, the bolts and nuts at the clamp connection are prone to stripping and loosening, which can lead to leakage at the connection. In severe cases, it may cause the fire protection system to malfunction and affect the fire extinguishing effect.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a fire-fighting pipe connector for buildings, including two clamps, two bolts, two nuts, and a sealing ring. The two bolts are respectively inserted into the inner walls of the two clamps at both ends. The inner wall of the nut is spirally sleeved on the outer surface of one end of the bolt, and one side abuts against one side of the clamp. The sealing ring is inserted into the inner walls of the two clamps. A limiting device is provided between one side of the clamp and the outer surface of the nut. When the nut is spirally sleeved on the bolt to lock the two clamps, the limiting device can be spring-reset to allow one end of its clamp rod to be inserted into the clamp groove to limit and fix the nut, thereby preventing the slippage and loosening of the thread.

[0006] Preferably, the limiting device includes a locking rod, a locking hole is provided on one side of the inner wall of one end of the clamp, and a plurality of locking grooves are provided on the outer surface of the nut, wherein one end of the locking rod is slidably installed in the inner wall of the locking hole, and the other end is inserted into the inner wall of the locking groove; a spring, wherein the inner wall of the spring is sleeved on the outer surface of one end of the locking rod, and both ends are respectively fixedly installed on one side of the locking rod and one side of the inner wall of the clamp; an auxiliary mechanism, wherein the auxiliary mechanism is disposed in the inner wall of the locking rod and the inner wall of the locking groove, for secondary fixing and limiting of the one end of the locking rod inserted into the locking groove.

[0007] The aforementioned components achieve the following effect: When connecting two adjacent fire protection pipes in a building, the sealing ring is first placed on the outer surface of the two fire protection pipe interfaces. Then, the inner walls of the two clamps are placed on the outer surface of the fire protection pipe joint and secured. Next, two bolts are inserted from the end of one clamp furthest from the clamp hole into the inner wall of the other clamp until one side abuts against the other side of the clamp. At this point, the clamp rod is manually pulled outward in the inner wall of the clamp hole to a certain position, causing the spring to contract. Then, the nut is screwed onto the outer surface of one end of the bolt and tightened. Finally, the clamp rod is released, allowing it to be locked into the corresponding groove on the outer surface of the nut under the return action of the spring, thus limiting and fixing it. At the same time, a secondary fixing and limiting mechanism is used to fix and limit the clamps. This allows the clamps to effectively limit the connection during the use of fire protection pipes through multiple fixing methods, preventing loosening of the connection during use, thereby preventing leakage, reducing fire protection system failures, and ensuring the stability and reliability of the pipe connection.

[0008] Preferably, the auxiliary mechanism includes a glue balloon, wherein the glue balloon is fixedly installed in the inner wall of one end of the clamping rod; and a plurality of pins, wherein one side of the pins is fixedly installed on one side of the inner wall of the clamping groove, and one end of the pins is inserted into the inner wall of the clamping rod.

[0009] The effect achieved by the above components is as follows: by setting an auxiliary mechanism, when one end of the clamp rod is inserted into the corresponding slot, one end of the pin in the slot will puncture the glue ball in the inner wall of the clamp rod, and the internal glue will overflow, thereby sticking the pin and the clamp rod to the slot for secondary fixation, improving the fixation effect and firmness.

[0010] Preferably, one end of the locking rod is rotatably mounted on the rotating block, and the outer surface of the rotating block is inserted into the inner wall of the locking hole.

[0011] The effect achieved by the above-mentioned components is as follows: by setting the rotating block, when the locking rod is pulled to one end in the locking hole to a certain position, the spring is driven to contract. At this time, the rotating block will be pulled out of the locking hole. Then, the rotating block can be rotated to a certain angle so that one side of it abuts against the side of the clamp, which can limit the locking rod and facilitate manual tightening of the nut for installation. Similarly, after rotating the rotating block to a certain angle and aligning it with the inner wall of the locking hole, the spring can drive the locking rod to reset and lock into the locking groove.

[0012] Preferably, a pull block is fixedly installed at one end of the lever, and the pull block is located on the side away from the spring.

[0013] The effect achieved by the above components is that by setting up the pull block, the contact friction on one side of the lever can be increased, making it easier to manually pull it during installation.

[0014] Preferably, a flow guide hole is provided on one side of the inner wall of the lever, and the limiting device further includes a plug, wherein one end of the plug is inserted into the inner wall of the flow guide hole.

[0015] The effect achieved by the above components is as follows: by setting the guide hole and the plug, when it is necessary to pull out the lever to release the limit, since the glue inside the glue ball connecting the lever and the nut is epoxy resin, when it is necessary to pull out, the plug can be pulled out and acetone liquid can be injected into the guide hole. It can enter the inner wall of the lever along the guide hole and come into contact with the epoxy resin to soften and destroy the glue layer structure, thereby making it easier to pull out the lever again to release the limit on the nut.

[0016] Preferably, a protective device is provided on the outer surface of the bolt between the two clamps, the protective device including a corrugated elastic arc block, wherein the corrugated elastic arc block is sleeved on the outer surface of the bolt.

[0017] The effect achieved by the above-mentioned components is as follows: by setting up a protective device, after the bolts are installed, the corrugated elastic arc block can be placed on the outer surface of the bolt between the two clamps, covering its outer surface, reducing the contact between the bolt and the air, achieving the effect of corrosion prevention, improving service life and the firmness of the clamp fixation.

[0018] Preferably, the protective device further includes two limiting blocks, wherein the limiting blocks are fixedly installed at an angle on both sides of the inlet of the corrugated elastic slider.

[0019] The effect achieved by the above components is that by setting the limiting block, the area of ​​the opening of the corrugated elastic arc block can be increased, making it easier to install.

[0020] The beneficial effects of this utility model are:

[0021] When connecting two adjacent fire protection pipes in a building, the sealing ring is first placed on the outer surface of the two fire protection pipe interfaces. Then, the inner walls of two clamps are placed on the outer surface of the fire protection pipe joint and secured. Next, two bolts are inserted from the end of one clamp furthest from the clamp hole into the inner wall of the other clamp until one side abuts against the other side of the clamp. At this point, the clamp rod is manually pulled outward in the inner wall of the clamp hole to a certain position, causing the spring to contract. Then, the nut is screwed onto the outer surface of one end of the bolt and tightened. Finally, the clamp rod is released, allowing it to be locked into the corresponding groove on the outer surface of the nut by the spring's reset action, thus limiting and fixing it. At the same time, a secondary fixing and limiting mechanism is used to ensure that the clamps effectively limit the connection during the use of fire protection pipes through multiple fixing methods, preventing loosening of the connection during use, thereby preventing leakage, reducing fire protection system failures, and ensuring the stability and reliability of the pipe connection. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a three-dimensional structural diagram of the clamp part of this utility model;

[0025] Figure 3 for Figure 2 An enlarged 3D structural diagram at point A in the middle;

[0026] Figure 4 This is a three-dimensional structural diagram of the sealing ring of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the bolt area of ​​this utility model;

[0028] Figure 6 for Figure 5 A three-dimensional schematic diagram of a local structure.

[0029] Legend: 1. Clamp; 2. Limiting device; 3. Protective device; 4. Bolt; 5. Nut; 6. Sealing ring; 21. Locking hole; 22. Locking groove; 23. Auxiliary mechanism; 231. Insert pin; 232. Glue ball; 24. Locking rod; 25. Spring; 26. Rotating block; 27. Pulling block; 28. Guide hole; 29. ​​Plug; 31. Corrugated elastic arc block; 32. Limiting block. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Figure 1-6 The fire-fighting pipe connector shown includes two clamps 1, two bolts 4, two nuts 5, and a sealing ring 6. The two bolts 4 are respectively inserted into the inner walls of the two clamps 1 at both ends. The inner wall of the nut 5 is spirally sleeved on the outer surface of one end of the bolt 4, and one side abuts against one side of the clamp 1. The sealing ring 6 is inserted into the inner walls of the two clamps 1. A limiting device 2 is provided between one side of the clamp 1 and the outer surface of the nut 5. When the nut 5 is spirally sleeved on the bolt 4 to lock the two clamps 1, the limiting device 2 can be reset by spring 25 so that one end of its clamp rod 24 is inserted into the clamp groove 22 to limit and fix the nut 5, thereby preventing the slip thread from loosening.

[0033] Figure 1-6The limiting device 2 shown includes a clamping rod 24, a clamping hole 21 on one side of the inner wall of one end of the clamping clamp 1, and several clamping grooves 22 on the outer surface of the nut 5. One end of the clamping rod 24 is slidably installed in the inner wall of the clamping hole 21, while the other end is inserted into the inner wall of the clamping groove 22. A spring 25 is sleeved on the outer surface of one end of the clamping rod 24, and both ends are fixedly installed on one side of the clamping rod 24 and one side of the inner wall of the clamping clamp 1, respectively. An auxiliary mechanism 23 is set in the inner wall of the clamping rod 24 and the inner wall of the clamping groove 22, and is used to perform secondary fixing and limiting on one end of the clamping rod 24 inserted into the clamping groove 22. When connecting two adjacent fire pipes in a building, the sealing ring 6 is first placed on the outer surface of the two fire pipe interfaces. Then, the inner walls of the two clamps 1 are placed on the outer surface of the fire pipe joint and secured. Next, two bolts 4 are inserted from the end of the clamp 1 furthest from the clamp hole 21 into the inner wall of the other clamp 1 until one side abuts against the other side of the clamp 1. At this point, the clamp rod 24 is manually pulled outward in the inner wall of the clamp hole 21 to a certain position, causing the spring 25 to contract. Then, the nut 5 is screwed onto the outer surface of one end of the bolt 4 and tightened. Finally, the clamp rod 24 is released, allowing it to be locked into the corresponding groove 22 on the outer surface of the nut 5 under the reset action of the spring 25 for limiting and fixing. At the same time, the auxiliary mechanism 23 is used for secondary fixing and limiting. Thus, the clamps 1 can effectively limit the connection of the fire pipes through multiple fixing methods during the connection process, preventing the connection from loosening during use, thereby preventing leakage, reducing fire system failures, and ensuring the stability and reliability of the pipe connection. The auxiliary mechanism 23 includes an adhesive balloon 232, which is fixedly installed in the inner wall of one end of the clamping rod 24; and several pins 231, one side of which is fixedly installed on one side of the inner wall of the slot 22, and the other end is inserted into the inner wall of the clamping rod 24. By setting the auxiliary mechanism 23, when one end of the clamping rod 24 is inserted into the corresponding slot 22, one end of the pin 231 in the slot 22 will puncture the adhesive balloon 232 in the inner wall of the clamping rod 24, and the internal adhesive will overflow, thereby adhering the pin 231 and the clamping rod 24 to the slot 22 for secondary fixation, improving the fixation effect and firmness.

[0034] Figure 1-6One end of the lever 24 is rotatably mounted on the rotating block 26, the outer surface of which is inserted into the inner wall of the locking hole 21. By using the rotating block 26, when the lever 24 is pulled to a certain position in the locking hole 21, the spring 25 contracts, causing the rotating block 26 to be pulled out of the locking hole 21. The rotating block 26 can then be rotated to a certain angle, so that one side abuts against the side of the clamp 1, thus limiting the lever 24 and facilitating manual tightening of the nut 5. Similarly, after rotating the rotating block 26 to a certain angle and aligning it with the inner wall of the locking hole 21, the spring 25 can cause the lever 24 to reset and lock into the locking groove 22. A pull block 27 is fixedly mounted on one end of the lever 24, located on the side away from the spring 25. The pull block 27 increases the contact friction on one side of the lever 24, making it easier to manually pull during installation.

[0035] Figure 1-6 The inner wall of the lever 24 shown has a guide hole 28. The limiting device 2 also includes a plug 29, one end of which is inserted into the inner wall of the guide hole 28. By providing the guide hole 28 and the plug 29, when the lever 24 needs to be pulled out to release the limiting, since the glue inside the glue ball 232 connecting the lever 24 and the nut 5 is epoxy resin, when it needs to be pulled out, the plug 29 can be pulled out and acetone liquid can be injected into the guide hole 28. This allows the liquid to enter the inner wall of the lever 24 along the guide hole 28 and contact the epoxy resin to soften and destroy the glue layer structure, thereby making it easier to pull out the lever 24 again to release the limiting of the nut 5.

[0036] Figure 1-6 A protective device 3 is provided on the outer surface of the bolt 4 between the two clamps 1. The protective device 3 includes a corrugated elastic arc block 31, which is fitted onto the outer surface of the bolt 4. By setting the protective device 3, after the bolt 4 is installed, the corrugated elastic arc block 31 can be fitted onto the outer surface of the bolt 4 between the two clamps 1, covering its outer surface, reducing the contact between the bolt 4 and the air, achieving the effect of corrosion prevention, improving service life and the firmness of fixing the clamps 1. The protective device 3 also includes two limiting blocks 32, which are fixedly installed at an angle on both sides of the entrance of the corrugated elastic slider. By setting the limiting blocks 32, the opening area of ​​the corrugated elastic arc block 31 can be increased, making it easier to install.

[0037] Working principle: When connecting two adjacent fire pipes in a building, the sealing ring 6 is first placed on the outer surface of the two fire pipe joints. Then, the inner walls of the two clamps 1 are placed on the outer surface of the fire pipe joints and secured. Next, the two bolts 4 are inserted from the end of the clamp 1 furthest from the locking hole 21 into the inner wall of the other clamp 1 until one side abuts against the side of the clamp 1. At this point, the clamp rod 24 is manually pulled outward in the inner wall of the locking hole 21 to a certain position, causing the spring 25 to contract. The rotating block 26 will then be pulled out of the locking hole 21. The rotating block 26 can then be rotated to a certain angle so that one side abuts against the side of the clamp 1, thus limiting the clamp rod 24. Finally, the nut 5 is screwed onto the... Tighten one end of the bolt 4 on its outer surface. After rotating the rotating block 26 to a certain angle, align it with the inner wall of the locking hole 21 and loosen the locking rod 24. Under the reset action of the spring 25, the rod 24 is locked into the corresponding locking groove 22 on the outer surface of the nut 5 for limiting and fixing. One end of the pin 231 in the locking groove 22 will puncture the glue ball 232 in the inner wall of the locking rod 24, and the internal glue will overflow, thereby sticking the pin 231 and the locking rod 24 to the locking groove 22 for secondary fixing and limiting. Thus, the clamp 1 can effectively limit the connection of the fire pipe through multiple fixing methods during the connection and use, avoid the connection part from loosening during use, prevent leakage, reduce fire system failures, and ensure the stability and reliability of the pipe connection.

[0038] After the bolt 4 is installed, the corrugated elastic arc block 31 can be placed on the outer surface of the bolt 4 between the two clamps 1 to cover its outer surface, reduce the contact between the bolt 4 and the air, achieve the effect of corrosion prevention, improve service life and the firmness of the clamp 1.

[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fire-fighting pipe connector for buildings, comprising two clamps (1), two bolts (4), two nuts (5), and a sealing ring (6), characterized in that: The two bolts (4) are respectively inserted into the inner walls of the two clamps (1). The inner wall of the nut (5) is spirally sleeved on the outer surface of one end of the bolt (4), and one side abuts against one side of the clamp (1). The sealing ring (6) is inserted into the inner wall of the two clamps (1). A limiting device (2) is provided between one side of the clamp (1) and the outer surface of the nut (5). When the nut (5) is spirally sleeved on the bolt (4) to lock the two clamps (1), the limiting device (2) can be reset by the spring (25) so that one end of the clamp rod (24) is inserted into the clamp groove (22) to limit and fix the nut (5).

2. The fire protection pipe connector for buildings according to claim 1, characterized in that: The limiting device (2) includes a clamp rod (24), and a clamp hole (21) is provided on one side of the inner wall of one end of the clamp (1). Several grooves (22) are provided on the outer surface of the nut (5). One end of the clamp rod (24) is slidably installed in the inner wall of the clamp hole (21), while the other end is inserted into the inner wall of the groove (22). Spring (25), wherein the inner wall of spring (25) is sleeved on the outer surface of one end of clamp rod (24), and both ends are respectively fixedly installed on one side of clamp rod (24) and one side of inner wall of clamp (1); The auxiliary mechanism (23) is set in the inner wall of the lever (24) and the inner wall of the slot (22) for secondary fixation and limiting of one end of the lever (24) inserted into the slot (22).

3. The fire protection pipe connector for buildings according to claim 2, characterized in that: The auxiliary mechanism (23) includes a glue balloon (232), wherein the glue balloon (232) is fixedly installed in the inner wall of one end of the lever (24); Several pins (231) are provided, one side of which is fixedly installed on the inner wall of the slot (22), and one end of which is inserted into the inner wall of the lever (24).

4. The fire protection pipe connector for buildings according to claim 2, characterized in that: One end of the locking rod (24) is rotatably mounted on the rotating block (26), and the outer surface of the rotating block (26) is inserted into the inner wall of the locking hole (21).

5. The fire protection pipe connector for buildings according to claim 2, characterized in that: A pull block (27) is fixedly installed at one end of the lever (24), and the pull block (27) is located on the side away from the spring (25).

6. The fire protection pipe connector for buildings according to claim 2, characterized in that: The inner wall of the lever (24) is provided with a flow guide hole (28), and the limiting device (2) also includes a plug (29), wherein one end of the plug (29) is inserted into the inner wall of the flow guide hole (28).

7. The fire protection pipe connector for buildings according to claim 1, characterized in that: The outer surface of the bolt (4) is provided with a protective device (3) between the two clamps (1). The protective device (3) includes a corrugated elastic arc block (31), which is sleeved on the outer surface of the bolt (4).

8. The fire protection pipe connector for buildings according to claim 7, characterized in that: The protective device (3) also includes two limiting blocks (32), wherein the limiting blocks (32) are fixedly installed at an angle on both sides of the entrance of the corrugated elastic slider.

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