Efficient-protection linear fire detection device
The buffer mechanism consisting of housing one and housing two, combined with springs, rubber pads and protective heat insulation layers, solves the stability and lifespan issues of linear fire detection devices in harsh environments, achieving efficient protection and sensitive detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ZEHUIFENG FIRE TECH CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-05-15
AI Technical Summary
Existing linear fire detection devices are susceptible to mechanical impacts, dust, moisture, and other factors in harsh environments, resulting in reduced stability and sensitivity, poor protection, and shortened service life.
The buffer mechanism, consisting of housing one and housing two, combined with springs, rubber pads, protective pads, and a protective heat insulation layer, absorbs vibration energy, protects the detection elements, and ensures stable operation.
It improves the stability and service life of fire detection devices in harsh environments, ensures the reliability and sensitivity of detection elements, and simplifies the installation and disassembly process.
Smart Images

Figure CN224248172U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire safety technology, and in particular to a highly efficient and protective linear fire detection device. Background Technology
[0002] Linear fire detection technology is widely used in modern fire safety systems, often for fire monitoring in large-area or long-distance locations such as tunnels, cable trenches, and warehouses. These detection devices sense fire signals such as smoke and temperature, enabling timely detection of fire hazards and providing crucial protection for fire safety. However, due to the complex environments in these locations, detection devices are often exposed to harsh conditions such as mechanical impacts, dust, and moisture. These factors not only affect the stability of the detection devices but may also reduce their sensitivity, leading to delayed or even failed fire detection. Therefore, how to provide effective protection for linear fire detection devices without compromising detection performance has become a pressing issue in the field of fire safety.
[0003] Currently, protective measures for linear fire detection devices mainly include the following: First, mechanical protection using a metal casing. While this type of casing can withstand a certain degree of external impact, it is heavy, inconvenient to install, and may obstruct the transmission of fire signals. Second, using a plastic casing. Although lighter, its strength is lower and it is easily damaged by external factors. Third, using a multi-layered protective structure. However, this structure is often too complex, increasing the cost of the device and potentially affecting the sensitivity of the detection elements. Furthermore, existing protective measures have limited effectiveness against environmental factors such as temperature fluctuations and electromagnetic interference, making it difficult to meet actual fire safety requirements.
[0004] Existing protective measures are flawed and ineffective, failing to withstand the impact of external mechanical collisions. Over time, this significantly shortens the lifespan of the equipment, forcing users to frequently perform maintenance or replacements, resulting in resource waste and economic losses. Therefore, a highly efficient linear fire detection device is proposed to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a highly efficient and protective linear fire detection device, which aims to improve the problem of poor protection effect and inability to effectively resist external mechanical collisions in the existing technology.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A highly efficient linear fire detection device includes a housing 1, a buffer mechanism inside the housing 1, a housing 2 installed at the front end of the housing 1, a connecting mechanism at the top of the housing 1, an installation mechanism on the side of the housing 1 and the housing 2 adjacent to each other, and an arc-shaped plate rotatably connected to the top of the housing 1.
[0008] The buffer mechanism includes a fixed rod, which is externally fixedly connected to the inner wall of the housing 2. Sliding blocks are slidably connected to both sides of the fixed rod, and springs are sleeved on both sides of the fixed rod. Two connecting rods are rotatably connected to one side of the sliding block, and a protective pad is rotatably connected to the other end of the multiple connecting rods. A rubber pad is fixedly connected to the other end of the protective pad. A protective component is installed on the inner wall of the housing 1, and a detection element is fixedly connected to one side of the protective component.
[0009] Through the above technical solution: when the equipment is subjected to external vibration or impact, housing one and housing two can effectively absorb the vibration and avoid damage to the internal components. The fixed rod forms a sliding connection with the surrounding environment through the sliding block. When vibration occurs, the sliding block will slightly displace on both sides of the fixed rod, thereby absorbing some vibration energy. The spring setting further enhances the shock absorption capability of the device. The spring can store energy when compressed by external force and release it after the vibration disappears, helping to maintain stable operation. The connecting rod and the protective pad work together to allow the protective pad to move under the influence of vibration, thereby effectively absorbing the vibration transmitted to the rubber pad and reducing the impact of vibration on the detection element. The protective components installed on the inner wall provide additional protection for the detection element, ensuring that its working performance is not interfered with, improving the reliability and effectiveness of fire detection. The overall design ensures the stability and durability of the equipment in various environments.
[0010] As a further description of the above technical solution:
[0011] The protective component includes a protective heat insulation layer. One side of the protective heat insulation layer is fixedly connected to one side of the housing. The other end of the protective heat insulation layer is fixedly connected to a plurality of elastic connectors. The other end of the plurality of elastic connectors is fixedly connected to an elastic shock-absorbing pad. The other end of the elastic shock-absorbing pad is fixedly connected to one side of the detection element.
[0012] Through the above technical solution: the protective component isolates external heat through a protective heat insulation layer to protect internal components, and multiple elastic connectors work together with elastic shock-absorbing pads to effectively absorb external vibrations, reduce the impact on the detection components, and ensure that they work normally in various environments.
[0013] As a further description of the above technical solution:
[0014] The connecting mechanism includes a cable, the top of which is fixedly connected to the bottom of the housing, a wear-resistant braided layer is fixedly connected to the outside of the cable, and a buffer sleeve is fixedly connected to the outside of the cable.
[0015] Through the above technical solution: the connection mechanism provides stable signal transmission by fixing the cable to the bottom of the housing, and the wear-resistant braided layer and the buffer sleeve jointly protect the cable, reduce wear and vibration transmission, and ensure that the equipment operates reliably in various environments.
[0016] As a further description of the above technical solution:
[0017] The installation mechanism includes four connecting blocks, which are slidably connected to the four corners of the housing 2. A spring 2 is fixedly connected to the inner wall of the connecting block. A sliding plate is fixedly connected to the other end of the spring 2. A locking block is fixedly connected to the other end of the sliding plate. A locking groove is provided at each of the four corners of the housing 1. The outer side of the locking block engages with the inner wall of the locking groove.
[0018] Through the above technical solution: the installation mechanism is slidably connected at the four corners of the housing 2 by four connecting blocks, so as to achieve flexible installation. Spring 2 provides elastic support, promotes the cooperation between the sliding plate and the locking block, and the locking block engages with the locking groove of the housing 1 to ensure that the equipment is firmly connected and easy to install and disassemble.
[0019] As a further description of the above technical solution:
[0020] The outer side of the sliding plate is slidably connected to the inner wall of the connecting block, and the outer side of the connecting block is slidably connected to the inner wall of the slot.
[0021] Through the above technical solution, the sliding connection of the sliding plate in the connecting block enables it to flexibly respond to changes in the shell and improve structural stability. At the same time, the sliding connection of the connecting block in the slot ensures the adaptability and stability of the overall mechanism and realizes the function of quick installation and disassembly.
[0022] As a further description of the above technical solution:
[0023] One end of the spring is fixedly connected to the inner wall of one side of the housing, and the other end of the spring is fixedly connected to one side of the sliding block.
[0024] The above technical solution provides elastic support when external vibration occurs, allowing the sliding block to move, absorbing vibration energy, reducing the impact on internal components of the equipment, and thus improving overall stability.
[0025] As a further description of the above technical solution:
[0026] The sliding block is externally slidably connected to the groove of the housing 2, and one side of the rubber pad is in contact with one side of the detection element;
[0027] The above technical solution allows the rubber pad to contact the detection element when external vibration occurs, effectively absorbing the vibration, reducing impact, ensuring the stability and accuracy of the detection element, and improving the reliability of fire detection.
[0028] As a further description of the above technical solution:
[0029] The card block is externally slidably connected to one side of the connecting block, and one side of the connecting block is in contact with one side of the housing 2;
[0030] The above technical solution ensures that the connecting block fits snugly against the housing, improving overall stability. This structure ensures that the locking block is effectively fixed, enhancing overall performance.
[0031] This utility model has the following beneficial effects:
[0032] 1. In this utility model, firstly, housing one and housing two absorb the initial impact, and then the vibration is transmitted to the rubber pad, which further absorbs the impact by contacting the detection element. The pushing action of the rubber pad causes the protective pad to rotate the connecting rod, squeezing the first spring, further reducing the vibration impact. Combined with the cooperation of the elastic connector and the elastic shock-absorbing pad, the safety and stability of the detection element are ensured, the overall reliability and service life of the equipment are improved, the working performance in harsh environments is enhanced, and the service life is extended.
[0033] 2. In this utility model, by pushing the locking block, the sliding plate is effectively squeezed, which simplifies the disassembly process and allows the connecting block to be smoothly separated from the slot, thereby quickly completing the disassembly of housing one and housing two. During installation, the design of the locking block allows the connecting block to be easily inserted into the slot, and the elastic potential energy of the spring quickly resets the sliding plate, ensuring that the locking block is firmly engaged with the slot, thereby achieving a fast and reliable connection and facilitating installation and disassembly. Attached Figure Description
[0034] Figure 1 This is a three-dimensional schematic diagram of a highly efficient protective linear fire detection device proposed in this utility model;
[0035] Figure 2 A schematic diagram of the detection element of a high-efficiency protective linear fire detection device proposed in this utility model;
[0036] Figure 3 A schematic diagram of the elastic connector of a highly efficient protective linear fire detection device proposed in this utility model;
[0037] Figure 4A schematic diagram of the sliding block of a high-efficiency protective linear fire detection device proposed in this utility model;
[0038] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0039] Legend:
[0040] 1. Housing 1; 2. Buffer mechanism; 21. Fixed rod; 22. Sliding block; 23. Spring 1; 24. Connecting rod; 25. Protective pad; 26. Rubber pad; 27. Protective component; 271. Protective heat insulation layer; 272. Elastic connector; 273. Elastic shock-absorbing pad; 28. Detection element; 3. Housing 2; 4. Connecting mechanism; 41. Cable; 42. Wear-resistant braided layer; 43. Buffer sleeve; 5. Installation mechanism; 51. Connecting block; 52. Spring 2; 53. Sliding plate; 54. Locking block; 55. Locking groove; 6. Arc plate. Detailed Implementation
[0041] 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.
[0042] Reference Figures 2 to 4 The present invention provides an embodiment of a highly efficient protective linear fire detection device, comprising a housing 1, wherein a buffer mechanism 2 is provided inside the housing 1 to enhance the device's resistance to external forces, thereby preventing damage to the internal structure; a housing 3 is installed at the front end of the housing 1 to help form a closed protective environment to prevent the intrusion of dust and moisture; and a connection mechanism 4 is provided at the top of the housing 1 to allow the device to be easily connected to or disassembled with other systems, thereby improving the flexibility of use.
[0043] A mounting mechanism 5 is provided on the side of housing 1 and housing 3 that are close to each other. The mounting mechanism 5 makes the equipment more secure and ensures that it will not loosen due to vibration in various working environments. An arc plate 6 is rotatably connected to the top of housing 1. The arc plate 6 can not only enhance the stability of the structure, but also effectively disperse external impact force and protect the internal mechanism. In addition, the buffer mechanism 2 includes a fixing rod 21. The fixing rod 21 is externally fixed to the inner wall of housing 3, providing a stable support point to reduce displacement during vibration.
[0044] Sliding blocks 22 are slidably connected to both sides of the fixed rod 21. The design of the sliding blocks 22 allows the equipment to slide effectively when subjected to vibration, further absorbing vibration energy. Springs 23 are sleeved on both sides of the fixed rod 21. When subjected to external force, springs 23 will compress and release energy, playing a buffering role and ensuring the stable operation of the equipment. One end of spring 23 is fixedly connected to the inner wall of one side of the housing 3, further stabilizing the firmness of the component connection and increasing the overall strength of the equipment.
[0045] The other end of spring 23 is fixedly connected to one side of sliding block 22, forming an effective energy transfer path, allowing vibration energy to propagate and be consumed between internal components. Two connecting rods 24 are rotatably connected to one side of sliding block 22. The structural design of connecting rods 24 can realize multi-angle modular movement, enhancing the flexibility and adaptability to external forces. The other ends of multiple connecting rods 24 are rotatably connected to protective pads 25. When subjected to external forces, protective pads 25 can fully exert their buffering effect, thereby reducing the direct impact on internal components.
[0046] A rubber pad 26 is fixedly connected to the other end of the protective pad 25. The rubber pad 26 acts as the final vibration absorber, effectively reducing the vibration intensity before the vibration is transmitted to the detection element 28. A protective component 27 is installed on the inner wall of the housing 1. The protective component 27 provides additional protection for the entire detection device, further reducing the risk of damage. A detection element 28 is fixedly connected to one side of the protective component 27. The detection element 28 is designed to ensure its interference resistance, improve monitoring accuracy and reliability.
[0047] The external sliding block 22 is slidably connected to the groove of the housing 2 3. The excellent sliding effect ensures the flexible operation of the internal mechanism without obstruction. One side of the rubber pad 26 is in contact with one side of the detection element 28. Through this direct contact, energy can be transferred instantly when vibration occurs, thereby protecting the detection element 28 from damage. The protective component 27 includes a protective heat insulation layer 271. One side of the protective heat insulation layer 271 is fixedly connected to one side of the housing 1, reducing the impact of external temperature changes on the internal equipment.
[0048] The other end of the protective heat insulation layer 271 is fixedly connected to multiple elastic connectors 272. The elastic connectors 272 provide greater flexibility to the internal structure, which helps the equipment to automatically adjust under different operating conditions. The other end of the multiple elastic connectors 272 is fixedly connected to elastic damping pads 273. The elastic damping pads 273 absorb residual vibrations and provide additional protection for the detection element 28, thereby ensuring that the equipment can still work normally under extreme conditions.
[0049] Specifically, when the equipment is subjected to external vibration or impact during use, housing 1 and housing 3 can effectively absorb the vibration and reduce the impact on the internal structure. Specifically, the fixed rod 21 provides a support point and is connected to the sliding block 22, allowing the sliding block 22 to slide freely during vibration, thereby absorbing some of the vibration energy. In this mechanism, one end of the spring 23 is fixed to the inner wall of housing 3, and the other end is connected to the sliding block 22. Its compression and release process plays a buffering role, which can effectively reduce the intensity of vibration transmitted to sensitive parts. The connecting rod 24 and the protective pad 25 on the other side of the sliding block 22 further enhance the resistance to external impact through linkage. In particular, the combined design of the protective pad 25 and the rubber pad 26 ensures that the vibration energy is effectively absorbed before it is transmitted to the detection element 28, ensuring that the detection element 28 can still work normally under extreme conditions. In addition, the combination of the protective component 27 with the protective heat insulation layer 271, the elastic connector 272 and the elastic shock-absorbing pad 273 not only provides additional physical protection, but also isolates the influence of temperature changes on the detection element 28, further improving the reliability of the equipment.
[0050] refer to Figure 1 , Figure 2 and Figure 5 The connection mechanism 4 includes a cable 41, the top of which is fixedly connected to the bottom of the housing 1 to ensure the stability and fixation of the cable 41, thereby reducing damage caused by vibration during equipment operation. The cable 41 is fixedly connected to a wear-resistant braided layer 42, which provides additional protection and effectively prevents the cable 41 from losing its function due to wear, thereby improving the service life of the equipment. At the same time, a buffer sleeve 43 is also fixedly connected to the outside of the cable 41. The design of the buffer sleeve 43 provides further shock absorption and reduces the transmission and damage caused by external impact. These designs together ensure that the stability and reliability of the connection mechanism 4 are improved during equipment use, which helps to stabilize signal transmission.
[0051] The mounting mechanism 5 includes four connecting blocks 51, which are slidably connected to the four corners of the housing 3. The even distribution of the four connecting blocks 51 enhances the strength and stability of the overall structure, ensuring that the equipment will not lose support due to external forces during use. The inner wall of the connecting blocks 51 is fixedly connected to springs 52. The design of springs 52 is intended to provide elastic support for the mounting mechanism 5, so that the equipment will have a certain amount of buffering and displacement when subjected to vibration, thus effectively avoiding wear between components.
[0052] The other end of the second spring 52 is fixedly connected to a sliding plate 53. The flexible sliding of the sliding plate 53 within the connecting block 51 can effectively adapt to changes in the housing and provide better stability. At the same time, the other end of the sliding plate 53 is fixedly connected to a locking block 54. The design of the locking block 54 allows the connecting block 51 to quickly engage with the housing 1, simplifying the installation and disassembly process of the equipment. The external sliding connection of the locking block 54 is on one side of the connecting block 51. Its design allows users to easily push the locking block 54 to achieve flexible connection and disassembly operations. One side of the connecting block 51 fits against one side of the housing 3, ensuring a tight connection and thus avoiding malfunctions caused by poor contact in daily use.
[0053] The four corners of the housing 1 are provided with slots 55, which provide accurate positioning for the locking block 54, ensuring stability and reliability during installation. The outer side of the locking block 54 engages with the inner wall of the slot 55, ensuring that the entire device can remain in place under vibration and external force. This is an important design to ensure the normal function of the detection equipment. The outer side of the sliding plate 53 is slidably connected to the inner wall of the connecting block 51, and the outer side of the connecting block 51 is slidably connected to the inner wall of the slot 55, making the entire installation mechanism 5 highly efficient. Through this design, users can quickly complete the adjustment when disassembly or installation is required, avoiding complicated steps and improving work efficiency. One side of the housing 1 is provided with a ventilation hole with a labyrinth structure. The labyrinth channel is designed with multiple tortuous paths, and the channel width gradually decreases. A filter screen is provided at the outlet.
[0054] Specifically, the cable 41 fixed to the bottom of the housing 1 is protected by the wear-resistant braided layer 42 and the buffer sleeve 43, reducing the transmission of vibration to the cable 41, thereby extending the service life of the equipment and ensuring the stability of signal transmission. The mounting mechanism 5 enhances the strength of the overall structure through the even distribution of four connecting blocks 51 to support the equipment and reduce the impact of external forces on internal components. When the equipment is subjected to vibration, the spring 52 in the connecting block 51 provides necessary buffering through its elastic properties, allowing the connecting block 51 to have a certain displacement to reduce the risk of wear between components. The sliding plate 53 connected to the spring 52 slides flexibly in the connecting block 51, allowing it to adapt freely to changes in the housing. This degree of freedom further enhances the structural stability. When it is necessary to disassemble or install the equipment, the user can quickly connect or disconnect by pushing the locking block 54, simplifying the operation process and improving work efficiency. The tight fit between the locking block 54 and the locking groove 55 of the housing 1 ensures the fixation of the equipment under vibration and external force, enabling the entire detection device to operate effectively in various working environments.
[0055] Working principle: When the equipment is in use, the housing 23 and housing 1 will absorb the vibration when impacted. At this time, the vibration will be transmitted to the rubber pad 26. The rubber pad 26 contacts the detection element 28 to absorb the vibration. At this time, the rubber pad 26 will push the protective pad 25, which will drive the connecting rod 24 to rotate. The connecting rod 24 will drive the sliding block 22 to squeeze the spring 23, thereby making the spring 23 absorb the vibration and reduce the impact of vibration on the equipment. In conjunction with the elastic connector 272 and the elastic shock-absorbing pad 273, the detection element 28 can be further protected.
[0056] When disassembly is required, by pushing the locking block 54, the sliding plate 53 is pushed to compress the second spring 52 as the locking block 54 moves. At this time, the locking block 54 will retract into the inner wall of the slot 55. Then the connecting block 51 can be pulled away from the inner wall of the slot 55, thereby canceling the connection between the first housing 1 and the second housing 3 and completing the disassembly. During installation, the connecting block 51 is inserted into the inner wall of the slot 55. At this time, the locking block 54 will first retract into the inner wall of the connecting block 51. When it moves to the appropriate position, the second spring 52 will release elastic potential energy. The elastic potential energy pushes the sliding plate 53 to drive the locking block 54 to engage with the inner wall of the slot 55, completing the installation.
[0057] 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 highly efficient protective linear fire detection device, comprising a housing (1), characterized in that: The housing 1 (1) is provided with a buffer mechanism (2), the front end of the housing 1 (1) is provided with a housing 2 (3), the top of the housing 1 (1) is provided with a connecting mechanism (4), the housing 1 (1) and the housing 2 (3) are provided with an installation mechanism (5), and the top of the housing 1 (1) is rotatably connected with an arc plate (6). The buffer mechanism (2) includes a fixed rod (21), which is fixedly connected to the inner wall of the housing (3). Sliding blocks (22) are slidably connected to both sides of the fixed rod (21). Springs (23) are sleeved on both sides of the fixed rod (21). Two connecting rods (24) are rotatably connected to one side of the sliding block (22). A protective pad (25) is rotatably connected to the other end of the multiple connecting rods (24). A rubber pad (26) is fixedly connected to the other end of the protective pad (25). A protective component (27) is installed on the inner wall of the housing (1). A detection element (28) is fixedly connected to one side of the protective component (27).
2. The highly efficient protective linear fire detection device according to claim 1, characterized in that: The protective component (27) includes a protective heat insulation layer (271), one side of which is fixedly connected to one side of the housing (1), and the other end of which is fixedly connected to a plurality of elastic connectors (272). The other end of the plurality of elastic connectors (272) is fixedly connected to an elastic shock-absorbing pad (273), and the other end of the elastic shock-absorbing pad (273) is fixedly connected to one side of the detection element (28).
3. The highly efficient protective linear fire detection device according to claim 1, characterized in that: The connecting mechanism (4) includes a cable (41), the top of which is fixedly connected to the bottom of the housing (1), a wear-resistant braided layer (42) is fixedly connected to the outside of the cable (41), and a buffer sleeve (43) is fixedly connected to the outside of the cable (41).
4. The highly efficient protective linear fire detection device according to claim 1, characterized in that: The installation mechanism (5) includes four connecting blocks (51), which are slidably connected to the four corners of the housing (3). The inner wall of the connecting block (51) is fixedly connected to a spring (52), and the other end of the spring (52) is fixedly connected to a sliding plate (53). The other end of the sliding plate (53) is fixedly connected to a locking block (54). The four corners of the housing (1) are provided with locking grooves (55), and the outside of the locking block (54) engages with the inner wall of the locking groove (55).
5. The highly efficient protective linear fire detection device according to claim 4, characterized in that: The outer side of the sliding plate (53) is slidably connected to the inner wall of the connecting block (51), and the outer side of the connecting block (51) is slidably connected to the inner wall of the slot (55).
6. The highly efficient protective linear fire detection device according to claim 1, characterized in that: One end of the spring (23) is fixedly connected to the inner wall of one side of the housing (3), and the other end of the spring (23) is fixedly connected to one side of the sliding block (22).
7. The highly efficient protective linear fire detection device according to claim 1, characterized in that: The sliding block (22) is externally slidably connected to the groove of the housing (3), and one side of the rubber pad (26) is in contact with one side of the detection element (28).
8. The highly efficient protective linear fire detection device according to claim 4, characterized in that: The card block (54) is externally slidably connected to one side of the connecting block (51), and one side of the connecting block (51) is in contact with one side of the housing (3).