Thermosensitive locking mechanism of closed water mist nozzle

Abstract

The utility model discloses a thermosensitive locking mechanism of a closed water mist spray head, which comprises a pushing block arranged below the spray head and abutted against the spray head; the frame abuts against the shell and is in a preset shape, and an adjusting piece is arranged at the bottom of the frame. A locking plate spring which has a predetermined shape, is connected to the frame, and abuts against the push block; the thermosensitive glass column is positioned between the pushing and stopping block and the adjusting piece; a notch matched with the locking plate spring is formed in the inner side of the shell. By designing the locking plate spring, the pushing and stopping block, the frame, the thermosensitive glass column and the adjusting piece to work in a matched mode, when the thermosensitive glass column explodes due to the influence of high temperature, the pushing and stopping block loses the supporting force, the reset elastic force of the locking plate spring, the water pressure of the spray head and the gravity of the pushing and stopping block enable the pushing and stopping block to descend and break away from low connection of the spray head; the locking plate spring is separated from the notch, so that the pushing block, the frame and the locking plate spring are separated from the shell, and the spray head is prevented from being influenced during spraying.

Description

Technical Field

[0001] This utility model relates to the field of fire protection, specifically a thermal locking mechanism for a closed water mist nozzle. Background Technology

[0002] A closed-loop water mist nozzle is a component that directly sprays water to extinguish fires. It is an automatic water mist nozzle with a heat-sensitive element and its sealing components.

[0003] This heat-sensitive element can operate within a predetermined temperature range, thereby enabling the activation, extinguishing, and fire control effects.

[0004] The current method basically connects the frame supporting the heat-sensitive element to the housing of the sprinkler head assembly. The heat-sensitive element supports the sealing component, which in turn seals the sprinkler head. When the heat-sensitive element is subjected to high temperature, it explodes, releasing its support for the sealing component and allowing water to flow from the sprinkler head to extinguish or control the fire. However, during this process, the frame supporting the heat-sensitive element is connected to the housing of the sprinkler head assembly; the frame supporting the heat-sensitive element does not detach from the sprinkler head assembly. Although the sprinkler head assembly is spraying water, it is affected by the frame supporting the heat-sensitive element, causing the spray position to change and affecting the fire extinguishing and control effect. Utility Model Content

[0005] Purpose of the utility model: To provide a thermal locking mechanism for a closed water mist nozzle to solve the above-mentioned problems existing in the prior art.

[0006] Technical solution: A thermal locking mechanism for a closed water mist nozzle, comprising:

[0007] A housing, with a nozzle disposed within the housing;

[0008] A push block is disposed below the nozzle and abuts against the nozzle;

[0009] The frame abuts against the outer shell, has a predetermined shape, and has an adjustment component at the bottom;

[0010] A locking leaf spring, having a predetermined shape, is connected to the frame and abuts against a push block;

[0011] A thermosensitive glass column is located between the push block and the adjusting member;

[0012] The inner side of the housing has a slot that matches the locking leaf spring.

[0013] This invention utilizes a design where a locking spring, a push block, a frame, a thermosensitive glass column, and an adjusting component work together. When the thermosensitive glass column explodes due to high temperature, the push block loses its supporting force. The locking spring's restoring elasticity, combined with the water pressure from the nozzle and the push block's own weight, causes the push block to descend and disengage from the nozzle's low contact point. As the push block descends, the locking spring disengages from the slot, allowing the push block, frame, and locking spring to detach from the outer casing, thus preventing the nozzle from being affected during spraying.

[0014] In a further embodiment, the adjusting member includes:

[0015] Tighten the screws;

[0016] The lower adapter is located at the end of the tightening screw and is adapted to the bottom of the thermosensitive glass column.

[0017] The height of the thermosensitive glass column is adjusted by designing an adjustable component, thereby achieving the contact between the push stop and the nozzle.

[0018] In a further embodiment, the bottom of the frame has a threaded groove that matches the tightening screw.

[0019] In a further embodiment, the push block is provided with an adapter.

[0020] In a further embodiment, the adapter includes:

[0021] The adapter housing is disposed within the push block;

[0022] A spring rod is disposed within the adapter housing, and a spring is sleeved on the spring rod;

[0023] An adapter rod is inserted into the adapter housing and extends to the outside of the adapter housing. An upper adapter frame is fitted onto the end of the adapter rod extending to the outside of the adapter housing. A washer is provided on the end of the adapter rod inserted into the adapter housing. A cavity that matches the spring rod is opened on the washer and the adapter rod.

[0024] The design of the adapter prevents damage to the thermal glass column. At the same time, the upper adapter is sleeved on the end of the adapter rod, which allows the upper adapter to rotate with the thermal glass column, avoiding friction between the thermal glass column and the upper adapter. This design is mainly to accommodate the rotation of the tightening screw when adjusting the height of the thermal glass column.

[0025] In a further embodiment, the upper adapter is adapted to the top of the thermal glass column.

[0026] Beneficial effects: This utility model discloses a thermal locking mechanism for a closed-type water mist nozzle. The mechanism involves the coordinated operation of a locking spring, a push block, a frame, a thermally sensitive glass column, and an adjusting component. When the thermally sensitive glass column explodes due to high temperature, the push block loses its supporting force. The locking spring's restoring elasticity, combined with the nozzle's water pressure and the push block's own weight, causes the push block to descend and disengage from the nozzle's base. As the push block descends, the locking spring disengages from the slot, allowing the push block, frame, and locking spring to detach from the outer shell, thus preventing interference with the nozzle's spraying process. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the structure of the adjusting component and adapter of this utility model.

[0029] Figure 3 This is a schematic diagram of the locking leaf spring in its free state according to this utility model.

[0030] The attached figures are labeled as follows:

[0031] 1. Frame; 2. Thermosensitive glass column;

[0032] 3. Adjusting component; 31. Tightening screw; 32. Lower adapter frame;

[0033] 4. Push block; 5. Locking leaf spring; 6. Nozzle; 7. Housing;

[0034] 8. Adapter accessories; 81. Adapter housing; 82. Spring rod; 83. Spring; 84. Washer; 85. Adapter rod; 86. Upper adapter frame. Detailed Implementation

[0035] This application relates to a thermal locking mechanism for a closed water mist nozzle, which will be explained in detail below through specific embodiments.

[0036] A thermal locking mechanism for a closed-loop water mist nozzle includes:

[0037] Housing 7, nozzle 6 disposed within housing 7;

[0038] The push block 4 is located below the nozzle 6 and abuts against the nozzle 6;

[0039] The frame 1 abuts against the outer shell 7, has a predetermined shape, and has an adjustment part 3 at the bottom;

[0040] The locking leaf spring 5 has a predetermined shape and is connected to the frame 1 and abuts against the push block 4;

[0041] The thermal glass column 2 is located between the push block 4 and the adjusting member 3;

[0042] The inner side of the outer casing 7 has a slot that matches the locking leaf spring 5.

[0043] This utility model is designed with locking spring 5, push block 4, frame 1, thermal glass column 2 and adjusting component 3 working together. When thermal glass column 2 explodes due to high temperature, push block 4 loses its supporting force, locking spring 5 returns to its original elastic force, plus the water pressure of nozzle 6 and the weight of push block 4 itself, causing push block 4 to descend and disengage from the nozzle 6. When push block 4 descends, locking spring 5 disengages from the slot, causing push block 4, frame 1 and locking spring 5 to detach from the outer shell 7, thus preventing the nozzle 6 from being affected when spraying.

[0044] The adjusting element 3 includes:

[0045] Tightening screw 31;

[0046] The lower adapter 32 is located at the end of the tightening screw 31 and is adapted to the bottom of the thermal glass column 2.

[0047] The height of the thermosensitive glass column 2 is adjusted by designing the adjustment component 3, thereby completing the contact between the push stop and the nozzle 6.

[0048] The bottom of the frame 1 has a threaded groove that matches the tightening screw 31.

[0049] The push block 4 is equipped with a fitting 8.

[0050] The adapter 8 includes:

[0051] The adapter housing 81 is disposed within the push block 4;

[0052] A spring rod 82 is disposed inside the adapter housing 81, and a spring 83 is sleeved on the spring rod 82;

[0053] An adapter rod 85 is inserted into the adapter housing 81 and extends to the outside of the adapter housing 81. An upper adapter frame 86 is sleeved on the end of the adapter rod 85 extending to the outside of the adapter housing 81. A washer 84 is provided on the end of the adapter rod 85 inserted into the adapter housing 81. The washer 84 and the adapter rod 85 have cavities that are adapted to the spring rod 82.

[0054] The design of the adapter 8 avoids damage to the thermal glass column 2. At the same time, the upper adapter 86 is sleeved on the end of the adapter rod 85, which allows the upper adapter 86 to rotate with the thermal glass column 2, thus avoiding friction between the thermal glass column 2 and the upper adapter 86. This design is mainly to accommodate the rotation of the tightening screw 31 when adjusting the height of the thermal glass column 2.

[0055] The upper adapter 86 is adapted to the top of the thermal glass column 2.

[0056] Working principle description: During assembly, the frame 1 is brought into contact with the outer shell 7. At this time, the locking leaf spring 5 extends into the shell. The thermal glass column 2 is placed on the lower adapter 32, the push block 4 is placed between the thermal glass column 2 and the nozzle 6, and the upper adapter 86 is aligned with the thermal glass column 2.

[0057] By rotating the tightening screw 31, the thermal glass column 2 is pressed against the fitting 8 and the push block 4 is moved towards the nozzle 6. When the push block 4 is in contact with the nozzle 6, the push block 4 presses against the locking spring 5 and is locked in the groove of the housing 7, thus completing the sealing of the nozzle 6.

[0058] During sealing, the pressure between the thermosensitive glass column 2 and the push block 4 is adjusted by the adapter 8 to prevent damage to the thermosensitive glass column 2;

[0059] When the thermal glass column 2 drives the upper adapter frame 86 to rise, it drives the adapter rod 85 and the washer 84 to rise, and adapts through the spring 83;

[0060] When the heat-sensitive glass column 2 explodes due to high temperature, the push block 4 loses its supporting force, the locking spring 5 returns to its original elasticity, and the water pressure of the nozzle 6 and the weight of the push block 4 itself cause the push block 4 to fall and disengage from the nozzle 6. When the push block 4 falls, the locking spring 5 disengages from the slot, causing the push block 4, frame 1 and locking spring 5 to detach from the outer shell 7, thus preventing the nozzle 6 from being affected when spraying.

[0061] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A thermal locking mechanism for a closed-loop water mist nozzle, comprising: A housing (7), and a nozzle (6) disposed within the housing (7); Its unique feature is that it also includes: A push block (4) is disposed below the nozzle (6) and abuts against the nozzle (6); The frame (1) abuts against the outer shell (7), has a predetermined shape, and has an adjustment part (3) at the bottom; The locking leaf spring (5) has a predetermined shape and is connected to the frame (1) and abuts against the push block (4); Thermosensitive glass column (2) is located between the push block (4) and the adjusting member (3); The inner side of the outer casing (7) has a slot that is compatible with the locking leaf spring (5).

2. The thermal locking mechanism of a closed water mist nozzle according to claim 1, characterized in that: The adjusting element (3) includes: Tighten screw (31); The lower adapter (32) is located at the end of the tightening screw (31) and is adapted to the bottom of the thermosensitive glass column (2).

3. The thermal locking mechanism of a closed water mist nozzle according to claim 1, characterized in that: The bottom of the frame (1) has a threaded groove that is compatible with the tightening screw (31).

4. The thermal locking mechanism of a closed water mist nozzle according to claim 1, characterized in that: The push block (4) is equipped with a fitting (8).

5. The thermal locking mechanism of a closed water mist nozzle according to claim 4, characterized in that: The adapter (8) includes: The adapter housing (81) is disposed inside the push block (4); A spring rod (82) is disposed inside the adapter housing (81), and a spring (83) is sleeved on the spring rod (82); An adapter rod (85) is inserted into the adapter housing (81) and extends to the outside of the adapter housing (81). An upper adapter frame (86) is sleeved on the end of the adapter rod (85) extending to the outside of the adapter housing (81). A washer (84) is provided on the end of the adapter rod (85) inserted into the adapter housing (81). The washer (84) and the adapter rod (85) have cavities that are adapted to the spring rod (82).

6. The thermal locking mechanism of a closed water mist nozzle according to claim 4, characterized in that: The upper adapter (86) is adapted to the top of the thermosensitive glass column (2).

Images