A stable connection of fire sprinkler head
By introducing fixing and limiting devices into the fire sprinkler head, the problem of a stable connection between the sprinkler head and the connecting pipe is solved, ensuring the normal operation of the sprinkler head in high-temperature environments and safe transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGXIAO INTELLIGENT TECH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-23
Smart Images

Figure CN224387959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire sprinkler head technology, and in particular to a fire sprinkler head with a stable connection. Background Technology
[0002] A fire sprinkler head is a device used for indoor fire extinguishing. When using a fire sprinkler head, if the outside temperature is too high, the liquid inside the glass tube inside the sprinkler head begins to expand. When the temperature exceeds the set expansion temperature, the liquid breaks the glass tube, and water from the water pipe inside the ceiling sprays out through the sprinkler head. This helps to extinguish the fire source or at least control the heat and limit the generation of toxic fumes until the fire brigade arrives.
[0003] The inventor discovered in daily work that fire sprinkler heads still have at least the following problems: When using fire sprinkler heads, if the outside temperature is too high, the liquid inside the glass tube inside the sprinkler head begins to expand. When the temperature exceeds the set expansion temperature, the liquid ruptures the glass tube, and water from the water pipe inside the ceiling sprays out through the sprinkler head. This can, to some extent, extinguish the fire source or at least control the heat and limit the generation of toxic fumes until the fire brigade arrives. However, in actual use, because the sprinkler head and water pipe are generally connected by threads, the threads may strip during connection, which affects the use of the sprinkler head to some extent. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fire sprinkler head with a stable connection.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a securely connected fire sprinkler head, comprising a sprinkler body, a connecting block fixedly connected to the bottom of the sprinkler body, an arc plate rotatably inserted into the top of the sprinkler body, a rubber block disposed inside the connecting block, a glass tube disposed on the top of the rubber block, the glass tube disposed inside the sprinkler body, a fixing device disposed at the bottom of the connecting block, a limiting device disposed on the inner wall of the sprinkler body, the fixing device comprising a connecting sleeve, the connecting sleeve being fixedly connected to the bottom of the connecting block, a connecting tube slidably sleeved on the bottom of the connecting block, the connecting sleeve being sleeved on the surface of the connecting tube, a connecting groove being formed on the surface of the connecting sleeve, a fixing rod slidably inserted through one side of the inner wall of the connecting groove, one end of the fixing rod passing through the connecting groove being inserted into one side of the connecting tube, a spring being sleeved on the surface of the fixing rod, one end of the spring being fixedly connected to the end of the fixing rod away from the connecting groove, and the end of the spring near the connecting groove being fixedly connected to one side of the inner wall of the connecting groove.
[0006] The effect achieved by the above components is as follows: when using the fixing device, the connecting block is slid into the inside of the connecting tube, and then the connecting sleeve is placed on the surface of the connecting tube. This allows the fixing rod to pass through the connecting groove and be inserted into one side of the connecting tube. Then, the fixing rod is pulled towards the inner wall of the connecting groove by the spring. This can restrict one end of the fixing rod in the inner wall of one side of the connecting tube, thus effectively restricting the nozzle body and the connecting tube together.
[0007] Preferably, a rubber ring is fitted on the inner wall of the connecting groove, and the rubber ring is fitted on the end of the fixing rod away from the connecting groove.
[0008] The effect achieved by the above components is that the rubber ring is fitted inside the connecting groove, which makes it easier to restrict the fixing rod within the inner wall of the connecting groove.
[0009] Preferably, a positioning rod is fixedly connected to the inner wall of the connecting sleeve, and the positioning rod is slidably inserted into the top of the connecting tube.
[0010] The effect achieved by the above components is that by inserting the positioning rod into the top of the connecting pipe, the connecting block can be prevented from rotating on the inner wall of the connecting pipe to a certain extent.
[0011] Preferably, a first rubber cylinder is fixedly connected to the surface of the connecting block, and a second rubber cylinder is fixedly connected to the inner wall of the connecting sleeve.
[0012] The effect achieved by the above components is that after the connecting block is slid to the inner wall of the connecting pipe, the first rubber cylinder and the second rubber cylinder are tightly attached to the surface of the inner wall of the connecting pipe, which can play a certain sealing role.
[0013] Preferably, the limiting device includes a support rod, which is disposed on the inner wall of the nozzle body. A semi-circular ring is fixedly connected to one end of the support rod. The semi-circular ring is sleeved on the surface of the glass tube. A rubber plate is fixedly connected to the inner wall of the semi-circular ring, and the rubber plate is sleeved on the surface of the glass tube.
[0014] The effect achieved by the above components is that when the limiting device is used, both semicircular rings are fitted onto the surface of the glass tube, and the rubber plate is fitted onto the surface of the glass tube, so as to a certain extent, the glass tube is prevented from being bumped and damaged during the transportation of the nozzle.
[0015] Preferably, the inner wall of the nozzle body is provided with rotating grooves evenly distributed, and a round rod is fixedly connected to the top of the inner wall of the rotating groove, and the support rod is rotatably sleeved on the surface of the round rod.
[0016] The effect achieved by the above components is that the support rod can be manually controlled to rotate on the surface of the round rod, which can effectively restrict the semi-circular ring on the surface of the glass tube.
[0017] Preferably, a rubber frame is fitted onto the surface of the nozzle body, and the rubber frame is located at the bottom of the support rod.
[0018] The effect achieved by the above components is as follows: when the limiting device is used, the rubber frame is set at the bottom of the support rod, which can effectively restrict the semi-circular ring on the surface of the glass tube. When the limiting device is not used, the support rod is slid into the inside of the rotating groove, and then the rubber frame is fitted onto the surface of the support rod and the nozzle body at one end.
[0019] Preferably, the surface of the nozzle body is uniformly fixedly connected with fixing blocks, and the rubber frame is positioned between two fixing blocks.
[0020] The effect achieved by the above components is that by setting the rubber frame on the inner wall of the two fixed blocks, the rubber frame can be effectively confined to the surface of one end of the nozzle body.
[0021] In this utility model, by setting a fixing device, when using the fixing device, the connecting block is slid into the inside of the connecting pipe, and then the connecting sleeve is put on the surface of the connecting pipe, so that the fixing rod passes through the connecting groove and is inserted into one side of the connecting pipe. Then, the fixing rod is pulled towards the inner wall of the connecting groove by the spring. In this way, one end of the fixing rod can be restricted in the inner wall of one side of the connecting pipe, which can effectively restrict the nozzle body and the connecting pipe together. Attached Figure Description
[0022] Figure 1 A three-dimensional structural diagram of a fire sprinkler head with a stable connection is provided for this utility model;
[0023] Figure 2 A three-dimensional structural diagram of the novel connecting sleeve is provided for this utility model;
[0024] Figure 3 A three-dimensional structural diagram of the novel support rod proposed in this utility model is provided.
[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0026] Legend: 1. Connecting block; 2. Nozzle body; 3. Arc plate; 4. Rubber block; 5. Glass tube; 6. Fixing device; 601. Connecting pipe; 602. Connecting sleeve; 603. Connecting groove; 604. Fixing rod; 605. Spring; 606. Rubber ring; 607. First rubber cylinder; 608. Second rubber cylinder; 609. Positioning rod; 7. Limiting device; 701. Support rod; 702. Semicircular ring; 703. Rubber plate; 704. Rotating groove; 705. Round rod; 706. Rubber frame; 707. Fixing block. Detailed Implementation
[0027] Example 1, as Figure 1-4 As shown, a fire sprinkler head with a stable connection has a connecting block 1 fixedly connected to the bottom of the sprinkler head body 2, and an arc plate 3 rotatably inserted into the top of the sprinkler head body 2. A rubber block 4 is installed inside the connecting block 1, and a glass tube 5 is installed on the top of the rubber block 4. The glass tube 5 is installed inside the sprinkler head body 2, and a fixing device 6 is installed at the bottom of the connecting block 1. A limit device 7 is installed on the inner wall of the sprinkler head body 2. When the fire sprinkler head is used, if the outside temperature is too high, the liquid inside the glass tube 5 inside the sprinkler head will begin to expand. When the temperature exceeds the set expansion temperature, the liquid will break the glass tube 5, and the water inside the water pipe installed in the ceiling will spray out through the sprinkler head. This can extinguish the fire source or at least control the heat and limit the generation of toxic fumes until the fire brigade arrives.
[0028] Reference Figure 2The fixing device 6 includes a connecting sleeve 602, which is fixedly connected to the bottom of the connecting block 1. A connecting tube 601 is slidably sleeved on the bottom of the connecting block 1. The connecting sleeve 602 is sleeved on the surface of the connecting tube 601. A connecting groove 603 is formed on the surface of the connecting sleeve 602. A fixing rod 604 is slidably inserted through one side of the inner wall of the connecting groove 603. One end of the fixing rod 604, passing through the connecting groove 603, is inserted into one side of the connecting tube 601. A spring 605 is sleeved on the surface of the fixing rod 604. One end of the spring 605 and... The end of the fixing rod 604 away from the connecting groove 603 is fixedly connected, and the end of the spring 605 near the connecting groove 603 is fixedly connected to one side of the inner wall of the connecting groove 603. When using the fixing device 6, the connecting block 1 is slid into the inside of the connecting tube 601, and then the connecting sleeve 602 is fitted onto the surface of the connecting tube 601, so that the fixing rod 604 passes through the connecting groove 603 and is inserted into one side of the connecting tube 601. Then, the fixing rod 604 is pulled towards the inner wall of the connecting groove 603 by the spring 605, which can fix the fixing rod 604. One end of rod 604 is confined within the inner wall of connecting pipe 601, effectively securing the nozzle body 2 and connecting pipe 601 together. A rubber ring 606 is fitted onto the inner wall of connecting groove 603, and is fitted onto the end of fixing rod 604 furthest from connecting groove 603. This allows the rubber ring 606 to secure the fixing rod 604 within the inner wall of connecting groove 603. A positioning rod 609 is fixedly connected to the inner wall of connecting sleeve 602. The connecting block 1 is slidably inserted into the top of the connecting tube 601, and the positioning rod 609 is inserted into the top of the connecting tube 601. This can prevent the connecting block 1 from rotating on the inner wall of the connecting tube 601 to a certain extent. The surface of the connecting block 1 is fixedly connected to the first rubber cylinder 607, and the inner wall of the connecting sleeve 602 is fixedly connected to the second rubber cylinder 608. After the connecting block 1 is slid into the inner wall of the connecting tube 601, the first rubber cylinder 607 and the second rubber cylinder 608 are respectively tightly attached to the surface of the inner wall of the connecting tube 601, which can play a certain sealing role.
[0029] Reference Figure 3 and Figure 4The limiting device 7 includes a support rod 701, which is installed on the inner wall of the nozzle body 2. A semi-circular ring 702 is fixedly connected to one end of the support rod 701. The semi-circular ring 702 is fitted onto the surface of the glass tube 5. A rubber plate 703 is fixedly connected to the inner wall of the semi-circular ring 702, which is also fitted onto the surface of the glass tube 5. When the limiting device 7 is used, both semi-circular rings 702 are fitted onto the surface of the glass tube 5, and the rubber plate 703 is also fitted onto the surface of the glass tube 5. This helps to prevent the glass tube 5 from being damaged by impacts during nozzle transportation. Rotating grooves 704 are evenly distributed on the inner wall of the nozzle body 2. A round rod 705 is fixedly connected to the top of the inner wall of the rotating groove 704. The support rod 701 is rotatably fitted onto the surface of the round rod 705. The support rod 701 can be manually controlled to rotate on the surface of the round rod 705. The movement of the rubber frame 706 on the nozzle body 2 effectively restricts the semicircular ring 702 to the surface of the glass tube 5. The rubber frame 706 is positioned at the bottom of the support rod 701. When the limiting device 7 is used, the rubber frame 706 is positioned at the bottom of the support rod 701, effectively restricting the semicircular ring 702 to the surface of the glass tube 5. When the limiting device 7 is not used, the support rod 701 is slid into the rotating groove 704, and the rubber frame 706 is then fitted onto the support rod 701 and one end of the nozzle body 2. Fixing blocks 707 are evenly and fixedly connected to the surface of the nozzle body 2. The rubber frame 706 is positioned between two fixing blocks 707, on the inner wall of the two fixing blocks 707, effectively restricting the rubber frame 706 to one end of the nozzle body 2.
[0030] Working principle: When using a fire sprinkler head, if the outside temperature is too high, the liquid inside the glass tube 5 inside the sprinkler head begins to expand. When the temperature exceeds the set expansion temperature, the liquid ruptures the glass tube 5, and water from the water pipe inside the ceiling sprays out through the sprinkler head. This, to a certain extent, extinguishes the fire source or at least controls the heat and limits the generation of toxic fumes until the fire brigade arrives. When using the fixing device 6, the connecting block 1 is slid into the connecting pipe 601, and then the connecting sleeve 602 is fitted onto the surface of the connecting pipe 601, thereby fixing the rod 60... 4. After passing through the connecting groove 603, insert the rod 604 into one side of the connecting pipe 601. Then, pull the fixing rod 604 towards the inner wall of the connecting groove 603 via the spring 605. This allows the rubber ring 606 to be fitted inside the connecting groove 603, thus securing the fixing rod 604 within the inner wall of the connecting groove 603. This also secures one end of the fixing rod 604 within the inner wall of one side of the connecting pipe 601, effectively binding the nozzle body 2 and the connecting pipe 601 together. Simultaneously, insert the positioning rod 609 into the top of the connecting pipe 601, which to a certain extent... To prevent the connecting block 1 from rotating on the inner wall of the connecting pipe 601, after sliding the connecting block 1 to the inner wall of the connecting pipe 601, the first rubber cylinder 607 and the second rubber cylinder 608 are respectively tightly attached to the surface of the inner wall of the connecting pipe 601, which can play a certain sealing role. When using the limiting device 7, the support rod 701 is manually controlled to rotate on the surface of the round rod 705, which can effectively restrict the semi-circular ring 702 on the surface of the glass tube 5, so that both semi-circular rings 702 are sleeved on the surface of the glass tube 5, and the rubber plate 703 is sleeved on the surface of the glass tube 5. In this way, when transporting the nozzle... To a certain extent, this prevents the glass tube 5 from being damaged by impacts. When using the limiting device 7, the rubber frame 706 is set at the bottom of the support rod 701, which can effectively restrict the semi-circular ring 702 on the surface of the glass tube 5. When the limiting device 7 is not used, the support rod 701 is slid into the inside of the rotating groove 704, and then the rubber frame 706 is fitted onto the surface of the support rod 701 and one end of the nozzle body 2. The rubber frame 706 is set on the inner wall of the two fixing blocks 707, which can effectively restrict the rubber frame 706 to one end of the nozzle body 2.
Claims
1. A connection-secure fire sprinkler head comprising a head body (2), characterized in that: A connecting block (1) is fixedly connected to the bottom of the nozzle body (2). An arc plate (3) is rotatably inserted into the top of the nozzle body (2). A rubber block (4) is provided inside the connecting block (1). A glass tube (5) is provided on the top of the rubber block (4). The glass tube (5) is located inside the nozzle body (2). A fixing device (6) is provided at the bottom of the connecting block (1). A limit device (7) is provided on the inner wall of the nozzle body (2). The fixing device (6) includes a connecting sleeve (602). The connecting sleeve (602) is fixedly connected to the bottom of the connecting block (1). A connecting tube (601) is slidably sleeved on the bottom of the connecting block (1). The connecting sleeve (602) is fitted onto the surface of the connecting tube (601). A connecting groove (603) is provided on the surface of the connecting sleeve (602). A fixing rod (604) is slidably inserted through one side of the inner wall of the connecting groove (603). One end of the fixing rod (604) is inserted into one side of the connecting tube (601) through the connecting groove (603). A spring (605) is fitted onto the surface of the fixing rod (604). One end of the spring (605) is fixedly connected to the end of the fixing rod (604) away from the connecting groove (603). The end of the spring (605) close to the connecting groove (603) is fixedly connected to one side of the inner wall of the connecting groove (603).
2. A connection-secure fire sprinkler head according to claim 1, wherein: A rubber ring (606) is fitted on the inner wall of the connecting groove (603), and the rubber ring (606) is fitted on the end of the fixing rod (604) away from the connecting groove (603).
3. A connection-secure fire sprinkler head according to claim 1, wherein: The inner wall of the connecting sleeve (602) is fixedly connected to a positioning rod (609), which is slidably inserted into the top of the connecting tube (601).
4. The secure connection fire sprinkler head of claim 1, wherein: The surface of the connecting block (1) is fixedly connected to a first rubber cylinder (607), and the inner wall of the connecting sleeve (602) is fixedly connected to a second rubber cylinder (608).
5. The secure connection fire sprinkler head of claim 1, wherein: The limiting device (7) includes a support rod (701), which is set on the inner wall of the nozzle body (2). One end of the support rod (701) is fixedly connected to a semi-circular ring (702), which is sleeved on the surface of the glass tube (5). A rubber plate (703) is fixedly connected to the inner wall of the semi-circular ring (702), which is sleeved on the surface of the glass tube (5).
6. A securement of a fire sprinkler head according to claim 5, wherein: The inner wall of the nozzle body (2) is uniformly provided with rotating grooves (704), and a round rod (705) is fixedly connected to the top of the inner wall of the rotating groove (704). The support rod (701) is rotatably sleeved on the surface of the round rod (705).
7. The secure connection fire sprinkler head of claim 1, wherein: A rubber frame (706) is fitted on the surface of the nozzle body (2), and the rubber frame (706) is located at the bottom of the support rod (701).
8. A connection-secure fire sprinkler head according to claim 7, wherein: The surface of the nozzle body (2) is uniformly fixedly connected with fixing blocks (707), and the rubber frame (706) is set between the two fixing blocks (707).