Temperature sensing fusing equipment suitable for kitchen fire extinguishing system
By designing a temperature-sensitive fuse device including mounting bracket, release plate, temperature-sensitive sheet and conducting wire, the problem of excessively long response time of the temperature-sensitive strip and delayed response in the prior art is solved, and a rapid response response of high-temperature fuse and almost zero wait is achieved, reducing implementation costs and improving the reliability of the fire extinguishing system.
Patent Information
- Application Number
- CN202421209758.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The response time of the temperature sensor bar in the existing kitchen fire extinguishing system is too long, which delays the response of the trigger wire under high temperatures, and the temperature sensor bar is prone to break due to pulling fatigue, resulting in false triggering.
A temperature-sensitive fuse device including a mounting bracket, a release plate, a temperature-sensitive plate and a conducting wire is designed. The tightness of the conductor wire is controlled by the opening and closing angle of the release sheet, and the temporary positioning of the release sheet is achieved by using the temperature sensing sheet, quickly responding to high-temperature fuses, and ensuring the stable layout and release of the conductor wire through the conductor shaft and the contact guide block.
It realizes rapid response to high-temperature blowout and fast release response with almost zero waiting, reducing implementation costs, avoiding the risk of temperature sensor strip breaking due to pull fatigue, and ensuring the rapid and reliable fire extinguishing system.
Smart Images
Figure CN222550036U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a fuse device, in particular to a temperature-sensitive fuse device suitable for a kitchen fire extinguishing system. Background Art
[0002] At present, for kitchen fire extinguishing systems, they are all equipped with fuse devices. In this way, when high temperature is reached or the fire is in the initial stage, the triggering device of the fire extinguishing device can be activated by the fusing of the fuse device. At present, the conventional fuse devices are electronic valves controlled by temperature sensors and physical temperature sensing strips. The implementation cost of electronic valves is high, so temperature sensing strips are mainly used.
[0003] The commonly used fusing device is to tie iron wires at both ends of the temperature sensing strip. The iron wire at one end is relatively fixed, and the iron wire at the other end is connected to the firing device to form a trigger wire. When a high temperature warning is triggered, the temperature sensing strip melts, and the trigger wire switches from a tight state to a released state, thereby allowing the firing device to fire.
[0004] However, the current temperature sensing strip needs to be baked at high temperature for a long time before it can be fused, and its response time is too long. At the same time, in order to keep the trigger wire taut, additional windings are often added, resulting in failure to release it immediately, causing a delay in fire extinguishing. In addition, in order to shorten the response time of the trigger wire, the existing fuse equipment will also adopt a direct connection method. This will cause the temperature sensing strip to be subjected to excessive tensile stress. After long-term use, it will break unexpectedly due to pulling fatigue, which is easy to cause false triggering.
[0005] In view of the above-mentioned defects, the designer has actively carried out research and innovation in order to create a temperature-sensitive fuse device suitable for kitchen fire extinguishing systems, making it more valuable for industrial use. Utility Model Content
[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a temperature-sensitive fuse device suitable for a kitchen fire extinguishing system.
[0007] The utility model is a temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, comprising a mounting bracket, wherein: the mounting bracket is provided with two release pieces distributed in a scissor-like manner, the upper ends of the release pieces are movably connected to the mounting bracket through a wire shaft, the lower ends of the release pieces are provided with hooks, the hooks of the two release pieces are connected with temperature-sensitive pieces, the mounting bracket is provided with a conductive wire, and the conductive wire is connected to the wire shaft and the release piece at the same time.
[0008] Furthermore, the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, wherein the mounting bracket includes a bracket body, contact guide blocks are arranged on both sides of the bracket body, a plurality of positioning holes are arranged on the bracket body, and positioning screws are arranged in the positioning holes.
[0009] Furthermore, in the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, a guide groove for accommodating a conductive wire is provided on the outer side of the contact guide block, and the guide groove is an inwardly concave arc groove.
[0010] Furthermore, in the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, the contact guide block is connected to the bracket body through a limit screw.
[0011] Furthermore, in the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, the release sheet includes a sheet body, a through hole is provided at the upper end of the sheet body, and a 7-shaped tenon for limiting the steering of the conductive wire is provided at the lower end of the sheet body.
[0012] Furthermore, in the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, a plurality of weight-reducing holes are provided on the release sheet.
[0013] Furthermore, in the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, the wire shaft includes a shaft body connected to a mounting bracket, and a contact pulley is sleeved on the shaft body.
[0014] Furthermore, in the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, the outer ring of the contact pulley is provided with a self-lubricating POM strip.
[0015] Furthermore, in the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, a clearance arc is provided on the hook.
[0016] Furthermore, the above-mentioned temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, wherein the temperature-sensitive piece includes a fuse body, hook holes are provided at both ends of the fuse body, and a stress-bearing groove is provided at the terminal end of the fuse body. The stress-bearing groove is an inner groove, and when in an un-fused state, the hook is embedded in the hook hole.
[0017] By means of the above solution, the utility model has at least the following advantages:
[0018] 1. The opening and closing angle of the release piece is used to control the tension of the conductive wire to achieve rapid response, without the need to add electronic sensors and electronic valves, thus reducing implementation costs.
[0019] 2. The release piece is temporarily positioned by the temperature sensing piece, which can meet the needs of rapid release after high-temperature melting, realize a rapid release response with almost zero waiting, and meet the needs of rapid disposal under the premise of fire warning.
[0020] 3. By installing the bracket, you can arrange it according to the location of the stove, and achieve effective fixed-point layout at the fire source or high temperature location.
[0021] 4. The contact guide block can assist in planning and guiding the direction of the conductive wire, which is convenient for stable layout.
[0022] 5. A conductor shaft is provided to participate in the tightening positioning and release guidance of the conductive wire to avoid the wire being entangled and stuck, and ensure that it can be released smoothly.
[0023] 6. The 7-shaped latch can stably limit the conductive wire to ensure that it remains taut in the standby state and does not cause false triggering.
[0024] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the overall structure of the temperature-sensitive fusing equipment suitable for the kitchen fire extinguishing system.
[0026] Figure 2 It is a schematic diagram of the front structure of the release sheet.
[0027] Figure 3 It is a schematic diagram of the side connection between the 7-shaped tenon and the release piece.
[0028] Figure 4 It is a schematic diagram of the structure of the wire shaft.
[0029] Figure 5 It is a schematic diagram of the structure of the temperature sensor.
[0030] The meanings of the reference numerals in the drawings are as follows.
[0031] 1 Mounting bracket 2 Release tab
[0032] 3 Wire shaft 4 Hook
[0033] 5 Temperature sensor 6 Conductive wire
[0034] 7 Contact guide block 8 Set screw
[0035] 9 Guide groove 10 Via hole
[0036] 11 7-shaped tenon 12 weight reduction hole
[0037] 13 shaft body 14 contact pulley
[0038] 15 self-lubricating POM strip 16 give way arc
[0039] 17 hook hole 18 stress bearing groove DETAILED DESCRIPTION
[0040] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0041] like Figures 1 to 5 The temperature-sensitive fuse device suitable for the kitchen fire extinguishing system includes a mounting bracket 1, which is different in that: considering the smooth cooperation with the subsequent connected conductive wire 6, the conductive wire 6 is extended after release, and is used to release the piercing valve in the fire extinguishing system, etc., and two release pieces 2 distributed in a scissor-like manner are arranged on the mounting bracket 1. Specifically, the upper end of the release piece 2 is movably connected to the mounting bracket 1 through the wire shaft 3. Thus, the release piece 2 after subsequent melting is opened by force, and the displacement intervention is reduced. At the same time, a hook 4 is arranged at the lower end of the release piece 2, and a temperature-sensitive piece 5 is connected to the hook 4 of the two release pieces 2. In this way, effective temperature-sensitive piece 5 melting control can be achieved, and a temperature-sensitive piece 5 suitable for the current kitchen warning melting can be selected according to actual needs. Furthermore, considering the control of transmission and shortening the response time, a conductive wire 6 is arranged on the mounting bracket 1, and the conductive wire 6 is connected to the wire shaft 3 and the release piece 2 at the same time. Considering the convenience of implementation, the conductive wire 6 can be selected from steel wire or iron wire, which has a certain toughness, is resistant to oil pollution, and is resistant to high temperature. During implementation, the temperature sensing piece 5 can be made of commercially available high-temperature fuse material, and different materials can be used according to different kitchen environments. This material is not the object of protection of the present utility model, so it will not be described in detail.
[0042] In view of a preferred embodiment of the utility model, the mounting bracket 1 used includes a bracket body, which can be combined with the range hood housing or the top wall above the stove. At the same time, contact guide blocks 7 are arranged on both sides of the bracket body to realize the wiring guidance of the conductive wire 6. Considering the convenience of installation, a number of positioning holes are arranged on the bracket body, and positioning screws 8 are arranged in the positioning holes. In addition, in order to meet the convenience of wiring guidance and avoid unnecessary vibration of the conductive wire 6 after being stressed, a guide groove 9 for accommodating the conductive wire 6 is arranged on the outer side of the contact guide block 7, and the guide groove 9 is an inner concave arc groove. In this way, the conductive wire 6 can be wired through the direction of the guide groove 9, even if it swings during installation, it can be properly restricted by the guide groove 9, and it does not affect the normal use and release of the conductive wire 6. Furthermore, considering that conductive wires 6 of different materials and diameters will be selected according to actual layout needs, the contact guide block 7 is connected to the bracket body through limit screws. In this way, the replacement and matching of the existing contact guide block 7 can be realized as needed.
[0043] Further, the release sheet 2 used includes a sheet body, and a through hole 10 is provided at the upper end of the sheet body for passing the wire shaft 3, which does not affect the swing of the sheet body itself. At the same time, a 7-shaped tenon 11 for turning and limiting the conductive wire 6 is provided at the lower end of the sheet body. In this way, the conductive wire 6 can be effectively integrated with the sheet body. When the sheet body is in the released state, the conductive wire 6 can also be synchronously switched from the tight state to the relaxed state, which is convenient for the release control of the connected equipment in the kitchen fire extinguishing system. In addition, in order to reduce the additional gravity pulling burden on the conductive wire 6, a plurality of weight-reducing holes 12 are provided on the release sheet 2.
[0044] In combination with the actual implementation, the conductor shaft 3 includes a shaft body 13 connected to the mounting bracket 1, and a contact pulley 14 is sleeved on the shaft body 13. In this way, when the conductive wire 6 is in contact and released, it will not get stuck. At the same time, a self-lubricating POM strip 15 can be provided on the outer ring of the contact pulley 14. In this way, it can be ensured that the friction of the contact surface of the conductive wire 6 is reduced during the wiring and release, and the need for instantaneous release can be met.
[0045] Furthermore, considering the need to hook the temperature sensing sheet 5 in the non-release state, a clearance arc 16 is provided on the hook 4. In this way, the lower end of the release sheet 2 will not have a raised portion that improperly presses against the upper end of the temperature sensing sheet 5. The temperature sensing sheet 5 will not be broken by external force.
[0046] During the actual implementation, the temperature sensing piece 5 used includes a fuse body, and hook holes 17 are set at both ends of the fuse body. In this way, when making a layout, it is convenient for the hook 4 to pass through the hook hole 17 to achieve proper positioning of the release piece 2 and the temperature sensing piece 5. In addition, after the temperature sensing piece 5 is melted, it does not affect the scissor-like release pieces 2 from opening each other. Considering the rapid melting under high temperature conditions, the terminal of the fuse body is provided with a stress bearing groove 18, and the stress bearing groove 18 is an inner groove. Therefore,
[0047] The working principle of the utility model is as follows:
[0048] The conductive wire 6 is guided by the contact guide block 7 on one side and abuts against the 7-shaped tenon 11 of one release sheet 2. After that, it is distributed from the upper end of the wire shaft 3 and abuts against the 7-shaped tenon 11 of another release sheet 2. Finally, it passes out under the guidance of the contact guide block 7 on the other side.
[0049] After that, one end of the conductive wire 6 is fixed. Next, the temperature sensing piece 5 is combined with the two release pieces 2. During this period, the stress of the conductive wire 6 causes the two release pieces 2 to open like scissors around the wire axis 3. Finally, the other end of the conductive wire 6 is fixed to the corresponding firing device.
[0050] When a fire warning occurs, the high temperature will cause the temperature sensing piece 5 to melt from the corresponding position of the stress bearing groove 18. After that, the release piece 2 distributed in a scissor-like manner is not bound by the temperature sensing piece 5, and the opening angle becomes larger. As a result, the conductive wire 6 in a taut state is extended. As a result, the firing device is not bound, and the corresponding fire extinguishing tank is opened after firing to achieve the fire extinguishing operation.
[0051] It can be seen from the above text description and the accompanying drawings that the following advantages are achieved after adopting the utility model:
[0052] 1. The opening and closing angle of the release piece is used to control the tension of the conductive wire to achieve rapid response, without the need to add electronic sensors and electronic valves, thus reducing implementation costs.
[0053] 2. The release piece is temporarily positioned by the temperature sensing piece, which can meet the needs of rapid release after high-temperature melting, realize a rapid release response with almost zero waiting, and meet the needs of rapid disposal under the premise of fire warning.
[0054] 3. By installing the bracket, you can arrange it according to the location of the stove, and achieve effective fixed-point layout at the fire source or high temperature location.
[0055] 4. The contact guide block can assist in planning and guiding the direction of the conductive wire, which is convenient for stable layout.
[0056] 5. A conductor shaft is provided to participate in the tightening positioning and release guidance of the conductive wire to avoid the wire being entangled and stuck, and ensure that it can be released smoothly.
[0057] 6. The 7-shaped latch can stably limit the conductive wire to ensure that it remains taut in the standby state and does not cause false triggering.
[0058] In addition, the indicated orientations or positional relationships described in the present invention are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or structure referred to must have a specific orientation or be operated with a specific orientation structure. Therefore, they cannot be understood as a limitation on the present invention.
[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.
Claims
1. A temperature-sensitive fuse device suitable for a kitchen fire extinguishing system, including a mounting bracket, characterized in that: The mounting bracket is provided with two release sheets distributed in a scissor-like manner, the upper end of the release sheet is movably connected to the mounting bracket through a wire shaft, the lower end of the release sheet is provided with a hook, the hooks of the two release sheets are connected to temperature sensing sheets, and the mounting bracket is provided with a conductive wire, which is connected to the wire shaft and the release sheet at the same time.
2. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 1 is characterized in that: The mounting bracket comprises a bracket body, contact guide blocks are arranged on both sides of the bracket body, a plurality of positioning holes are arranged on the bracket body, and positioning screws are arranged in the positioning holes.
3. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 2 is characterized in that: A guide groove for accommodating the conductive wire is arranged on the outer side of the contact guide block, and the guide groove is an inwardly concave arc groove.
4. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 2 is characterized in that: The contact guide block is connected to the bracket body through a limit screw.
5. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 1, characterized in that: The release sheet includes a sheet body, the upper end of the sheet body is provided with a through hole, and the lower end of the sheet body is provided with a 7-shaped tenon for limiting the steering of the conductive wire.
6. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 1, characterized in that: The release sheet is provided with a plurality of weight-reducing holes.
7. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 1, characterized in that: The conductor shaft comprises a shaft body connected to a mounting bracket, and a contact pulley is sleeved on the shaft body.
8. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 7, characterized in that: The outer ring of the contact pulley is provided with a self-lubricating POM strip.
9. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 1, characterized in that: The hook is provided with a yielding arc.
10. The temperature-sensitive fuse device suitable for kitchen fire extinguishing system according to claim 1, characterized in that: The temperature sensing piece includes a fuse body, hook holes are arranged at both ends of the fuse body, and a stress bearing groove is arranged at the terminal of the fuse body. The stress bearing groove is an inner groove. When in an unfused state, the hook is embedded in the hook hole.