Kitchen equipment fire extinguishing device triggering mechanism with multi-area linkage starting function

Abstract

A kitchen equipment fire extinguishing device triggering mechanism with a multi-area linkage starting function comprises a steel wire rope, starting pipelines, a temperature sensing releasing mechanism and a mechanical valve, the temperature sensing releasing mechanism comprises a containing shell, a fixing device and a temperature sensing alloy sheet, through holes are formed in the two ends of the containing shell, the starting pipelines are coaxially arranged in the through holes, and the mechanical valve is arranged in the containing shell. A fixing device is arranged on the inner side of the containing shell and fixedly connected to the containing shell, a temperature sensing alloy sheet is arranged on the side, away from the containing shell, of the fixing device, the steel wire rope is arranged on the fixing device through starting pipelines, the number of the starting pipelines is multiple, and a three-way turning wheel is arranged between the starting pipelines. A mechanical valve is arranged at the bottom end of the three-way turning wheel; one end of the steel wire rope is connected with a triggering mechanism of the mechanical valve. The temperature sensing releasing mechanism of a pure mechanical structure can well adapt to the humid environment with much oil and smoke in a kitchen, the problem of multi-section turning is solved through the arrangement of the three-way turning wheel, the steel wire rope is prevented from being clamped, and the fire extinguishing triggering device can be started in multiple areas.

Description

Technical Field

[0001] The utility model relates to the field of fire protection, in particular to a trigger mechanism of a kitchen equipment fire extinguishing device with multi-zone linkage start. Background Art

[0002] The driving device used in the fire extinguishing device of ordinary kitchen equipment is an electrical linkage device. Its principle is that the fire causes an alarm, the electrical signal drives the solenoid valve, and the fire extinguishing device is activated through the action of the solenoid valve, so as to achieve the effect of fire extinguishing and cooling. However, for the kitchen environment with a lot of oil smoke, high humidity and high acid and alkali concentration, electronic components are easily damaged. Generally, smoke alarms use infrared conduction. As long as the smoke concentration reaches a certain level and blocks the conduction of infrared rays, it will cause an alarm. For the kitchen environment with a lot of oil smoke, it is easy to cause an alarm and cause the fire extinguishing device to malfunction. For temperature sensing alarm devices, due to the high temperature in the kitchen, a high-temperature temperature sensing device is used. Once the oil pan or flue catches fire, the fire spreads quickly. When the temperature sensing device sends a fire signal, the best time to extinguish the fire has often been missed.

[0003] At present, a Chinese patent with the authorization announcement number CN208975032U discloses a new type of kitchen equipment fire extinguishing device, including a control box, a mechanical starter, a high-pressure nitrogen bottle and a fire extinguishing agent bottle are arranged in the control box, and the mechanical starter includes a main body, a linkage rod, a trigger plate, a clamping plate, a steel needle, a trigger pin and a hinged plate; the trigger plate is located above the linkage rod, and one end of the trigger plate is hinged to the hinged plate; the steel needle is located inside the main body, the trigger pin is vertically fixed to the steel needle, the trigger pin passes through the main body and a slide groove for the trigger pin to move up and down is opened on the main body; the middle part of the clamping plate is hinged to the outside of the main body through a horizontal axis, the end of the linkage rod away from the trigger part and the fulcrum is a clamping claw, and the clamping plate is provided with a clamping part and a trigger groove; a spring and a pull rod are arranged in the control box, the spring is in a stretched state and the two ends of the spring are respectively connected to the pull rod and the trigger plate. The utility model reduces the possibility that the trigger plate is difficult to overcome the resistance and start the mechanical trigger when a fire occurs.

[0004] The above-mentioned existing technical solution has the following defects: in order to ensure the accuracy and timeliness of temperature detection, this temperature sensing release mechanism needs to be installed directly above the stove. If the existing kitchen wants to install multiple stoves, or multiple stalls in the food court share a set of fire extinguishing equipment, the direction of the multiple sections of steel wire rope can only be connected in series in one direction, which makes the installation complicated, and due to the multiple turns, the wire rope will get stuck at the turning point of the turning wheel. Utility Model Content

[0005] The utility model aims to provide a trigger mechanism for a kitchen equipment fire extinguishing device with multi-zone linkage activation to solve the problems existing in the above-mentioned prior art.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A trigger mechanism for a kitchen equipment fire extinguishing device with multi-zone linkage activation, comprising a steel wire rope, a starter pipeline, a temperature-sensitive release mechanism and a mechanical valve, wherein the temperature-sensitive release mechanism comprises a housing, a fixing device and a temperature-sensitive alloy sheet;

[0008] Both ends of the housing are provided with through holes, and starting pipelines are coaxially arranged in the through holes. A fixing device is provided on the inner side of the housing, and the fixing device is fixedly connected to the housing. A temperature-sensitive alloy sheet is provided on the side of the fixing device away from the housing.

[0009] The steel wire rope is arranged on a fixing device through a starting pipeline, a plurality of starting pipelines are arranged, a three-way turning wheel is arranged between the starting pipelines, a mechanical valve is arranged at the bottom end of the three-way turning wheel, and one end of the steel wire rope is connected to the trigger mechanism of the mechanical valve.

[0010] By adopting the above technical solution, a three-way turntable is added to the upper connection of the mechanical valve of the kitchen equipment fire extinguishing device, and the middle pulley of the traditional turntable is removed. The two ends of the steel wire are connected in parallel, and the lower end of the mechanical valve steel wire is tightened. In the case of multiple sections in parallel, the steel wire in any direction will produce a distance travel due to the melting and loosening of the temperature sensing piece, causing the mechanical valve to fall, the ejector pin to pierce the nitrogen bottle, and then release the agent to extinguish the fire.

[0011] In a further embodiment, a receiving groove is provided on the inner side of the receiving shell, a plurality of positioning holes are provided in the receiving groove at equal intervals, the fixing device is fixedly connected to the middle position of the receiving groove, and through holes are coaxially provided on both sides of the receiving shell.

[0012] By adopting the above technical solution, the fixing device is inconvenient to be installed directly above the stove. By fixing the fixing device in the accommodating shell, and then fixing the accommodating shell to the wall by screwing or plugging, the fixing device, the starting pipeline and the wire rope arranged in the starting pipeline can be fixed in appropriate positions.

[0013] In a further embodiment, the fixing device includes a first limiting plate and a second limiting plate, a positioning hole is provided at one end of the first limiting plate, and the second limiting plate is hinged on the positioning hole.

[0014] By adopting the above technical solution, the two limit plates have the same shape and size, but one of the limit plates is placed downward and the other limit plate is placed upward, and then the rear ends of both are hinged together, so that the two can be opened at a suitable angle to fix the temperature-sensitive alloy plate and the steel wire rope, while reducing the processing cost of the limit plates.

[0015] In a further embodiment, the first limiting piece and the second limiting piece are exactly the same in shape, the second limiting piece is flipped and arranged at the top of the first limiting piece, a wire rope limiting hook is arranged at the bottom end of the first limiting piece, and an alloy sheet limiting hook is arranged on the right side of the rope limiting hook.

[0016] By adopting the above technical solution, the rope limit hooks on the left and right limit plates are wound with steel wire ropes, and the steel wire ropes on both sides pull the two limit plates to the left and right sides respectively, and the alloy plate limit hooks arranged on the edge of the limit plate can easily implement a limit on the temperature-sensitive alloy plate.

[0017] In a further embodiment, two positioning holes are symmetrically arranged at the left and right ends of the temperature-sensitive alloy sheet, and the temperature-sensitive alloy sheet is arranged on the temperature-sensitive alloy sheet limiting hook of the fixing device.

[0018] By adopting the above technical solution, the steel wire rope pulls the two limit plates to the left and right sides. At this time, the alloy plate limit hook located at the periphery of the limit plate away from the hinge is inserted into the two positioning holes of the temperature-sensitive alloy plate. The steel wire rope that is always kept taut can firmly fix the temperature-sensitive alloy plate and the two limit plates. Unless the temperature-sensitive alloy plate melts at a certain temperature, the fixing device will not move.

[0019] In a further embodiment, a three-way turntable is arranged between the starting pipelines, and the three-way turntable includes a turntable body, a first pipe interface, a second pipe interface and a third pipe interface, the first pipe interface, the second pipe interface and the third pipe interface are fixedly connected to the turntable body, the first pipe interface and the second pipe interface are horizontally arranged, and the third pipe interface is vertically arranged on the turntable body.

[0020] By adopting the above technical solution, multiple stoves can be installed in a kitchen. This connection method can effectively avoid the probability of the steel wire connecting in one direction getting stuck, while reducing the installation workload. Multiple stalls in the food court can share a set of kitchen fire extinguishing equipment. As long as a fire occurs in a stall and the temperature sensor melts, the equipment can start normally mechanically, realizing multi-area linkage start.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. The parallel connection of the three-way turntable and the steel wire rope can reduce the installation workload. The steel wire ropes in the start pipelines at both ends of the three-way turntable are connected in parallel in the turntable body and tightened with the steel wire of the mechanical valve through the third pipe interface at the lower end. When the steel wire rope travels a distance in any direction, the mechanical valve will fall, achieving the effect of multi-area joint start.

[0023] 2. Through the setting of the temperature-sensing release mechanism, the fire condition can be completely detected by mechanical devices, which enhances the reliability of the fire-fighting device and is not affected by the kitchen's high smoke, humidity and high acid and alkali concentrations;

[0024] 3. By setting the fixing device, the steel wire rope and the temperature sensitive alloy sheet can be tightly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure of the temperature-sensitive alloy sheet in the utility model;

[0027] Figure 3 It is a schematic diagram used to embody the three-way turning wheel in the utility model.

[0028] In the figure, 1. temperature-sensitive release mechanism; 11. accommodating shell; 12. fixing device; 121. first limit plate; 122. second limit plate; 13. temperature-sensitive alloy sheet; 2. wire rope; 3. starting pipeline; 4. rope limit hook; 5. alloy sheet limit hook; 6. three-way turn wheel; 61. turn wheel body; 62. first pipe interface; 63. second pipe interface; 64. third pipe interface; 7. mechanical valve. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0030] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] Example:

[0032] like Figure 1-3As shown, a trigger mechanism of a kitchen equipment fire extinguishing device with multi-zone linkage activation includes a steel wire rope 2, a starting pipeline 3, a temperature-sensitive release mechanism 1 and a mechanical valve 7. The temperature-sensitive release mechanism 1 includes a housing 11, a fixing device 12 and a temperature-sensitive alloy sheet 13. Through holes are provided at both ends of the housing 11, and the starting pipeline 3 is coaxially arranged in the through holes. A fixing device 12 is provided on the inner side of the housing 11, and the fixing device 12 is fixedly connected to the housing 11. A temperature-sensitive alloy sheet 13 is provided on the side of the fixing device 12 away from the housing 11. The steel wire rope 2 is arranged on the fixing device 12 through the starting pipeline 3. A plurality of starting pipelines 3 are provided. A three-way turn wheel 6 is provided between the starting pipelines 3. The three-way turn wheel 6 includes a turn wheel body 61, a first pipe interface 62, a second pipe interface 63 and a third pipe interface 64. The first pipe interface 62, the second pipe interface 63 and the third pipe interface 64 It is fixedly connected to the turn wheel body 61, the first pipe interface 62 and the second pipe interface 63 are arranged horizontally, and the third pipe interface 64 is arranged vertically on the turn wheel body 61. A mechanical valve 7 is arranged at the bottom end of the three-way turn wheel 6, and one end of the wire rope 2 is connected to the trigger mechanism of the mechanical valve 7. The core of the entire trigger device is the temperature-sensitive release mechanism 1. The temperature-sensitive release mechanism 1 fixes the temperature-sensitive alloy sheet 13 through the wire ropes 2 on the left and right sides. The traditional method is to wind the wire rope 2 around the roller of the turn wheel. The direction of multiple sections of wire rope 2 can only be connected in series in one direction, which is complicated to install. In addition, due to the multiple turns, the wire rope 2 will be stuck at the turn of the turn wheel, which will affect the normal operation of the trigger device. By adding a three-way turn wheel 6 at the upper end of the mechanical valve 7 and removing the pulley in the turn wheel, the two wire ropes 2 are directly connected in parallel to the wire rope 2 of the trigger mechanism of the mechanical valve 7, thereby realizing the joint start of multiple areas.

[0033] like Figure 1-3As shown, the fixing device 12 includes a first limiting piece 121 and a second limiting piece 122, one end of the first limiting piece 121 is provided with a positioning hole, the second limiting piece 122 is hinged on the positioning hole, the first limiting piece 121 and the second limiting piece 122 are completely consistent in shape, the second limiting piece 122 is flipped and arranged at the top of the first limiting piece 121, the bottom end of the first limiting piece 121 is provided with a wire rope 2 limiting hook, the right side of the rope limiting hook 4 is provided with an alloy sheet limiting hook 5, the left and right ends of the temperature-sensitive alloy sheet 13 are symmetrically provided with two positioning holes, the temperature-sensitive alloy sheet 13 is arranged on the temperature-sensitive alloy sheet 13 limiting hook of the fixing device 12, the inner side of the containing shell 11 is provided with a containing groove, and a plurality of positioning holes are evenly spaced in the containing groove, and the fixing device The device 12 is fixedly connected to the middle position of the accommodating groove, and through holes are coaxially arranged on both sides of the accommodating shell 11. The kitchen environment is full of oil smoke and humidity, and electronic components are easily damaged, so it is more reliable and durable to use the temperature-sensitive alloy sheet 13 as the temperature measuring element. The outer periphery of the two limit sheets constituting the fixing device 12 is provided with alloy sheet limit hooks 5, and the two alloy sheet limit hooks 5 are arranged in the two positioning holes of the temperature-sensitive alloy sheet 13. The steel wire ropes 2 at both ends are respectively arranged on the rope limit hooks on the limit sheets, and the two limit sheets are respectively pulled to the left and right ends, so that they are fixed by the temperature-sensitive alloy sheet 13. As long as any one of the multiple parallel temperature-sensitive alloy sheets 13 is melted due to the temperature of the fire, the travel distance of the steel wire rope 2 will change, so that the mechanical valve 7 falls, and the ejector pin pierces the nitrogen bottle to release the agent to extinguish the fire.

[0034] Specific implementation process:

[0035] First, pass the steel wire rope 2 through the starting pipeline 3, and respectively wind it around the rope limiting hook 4 at the bottom end of the first limiting piece 121, the bolt between the two limiting pieces, and the rope limiting hook 4 at the top end of the second limiting piece 122, and then respectively sleeve the two positioning holes of the temperature-sensitive alloy sheet 13 onto the two alloy sheet limiting hooks 5 of the fixing device 12. At this time, pull the steel wire rope 2 until it is taut. Due to the action of the rope limiting hook 4, the two limiting pieces will also open to both sides as the steel wire rope 2 is straightened, and the temperature-sensitive alloy sheet 13 sleeved on the alloy sheet limiting hook 5 can maintain the stability of the device, and the starting pipeline between the two temperature-sensitive release mechanisms 1 3 is connected through a three-way turn pulley 6, and the two parallel-connected steel wire ropes 2 are then tightened by the steel wire rope 2 on the bottom mechanical valve 7. This three-way turn pulley 6 has been improved, and the pulley in the traditional turn pulley is removed, and the steel wire rope 2 is no longer wound around the pulley, thereby avoiding the situation where the pulley cannot rotate and is stuck. It can be installed on multiple stoves in a kitchen, and can also be well adapted to the situation where multiple stalls in a food court share a set of fire extinguishing devices. As long as a fire occurs, the temperature-sensitive alloy sheet 13 melts, and the originally tight steel wire rope 2 is naturally loosened. After the stroke changes, the ejector pin breaks through the high-pressure nitrogen level, releasing the fire extinguishing agent to extinguish the fire.

[0036] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A trigger mechanism for a kitchen equipment fire extinguishing device with multi-zone linkage activation, comprising a steel wire rope (2), an activation pipeline (3), a temperature-sensitive release mechanism (1) and a mechanical valve (7), characterized in that: The temperature-sensitive release mechanism (1) comprises a housing (11), a fixing device (12) and a temperature-sensitive alloy sheet (13); Both ends of the accommodating shell (11) are provided with through holes, and a starting pipeline (3) is coaxially arranged in each of the through holes; a fixing device (12) is provided on the inner side of the accommodating shell (11), and the fixing device (12) is fixedly connected to the accommodating shell (11); and a temperature-sensitive alloy sheet (13) is provided on a side of the fixing device (12) away from the accommodating shell (11); The steel wire rope (2) is arranged on a fixing device (12) via a starting pipeline (3), a plurality of starting pipelines (3) are arranged, a three-way crankshaft (6) is arranged between the starting pipelines (3), a mechanical valve (7) is arranged at the bottom end of the three-way crankshaft (6), and one end of the steel wire rope (2) is connected to a trigger mechanism of the mechanical valve (7).

2. A trigger mechanism for a kitchen equipment fire extinguishing device with multi-zone linkage activation according to claim 1, characterized in that: A receiving groove is provided on the inner side of the receiving shell (11), a plurality of positioning holes are provided in the receiving groove at equal intervals, the fixing device (12) is fixedly connected to the middle position of the receiving groove, and through holes are coaxially provided on both sides of the receiving shell (11).

3. The trigger mechanism of a kitchen equipment fire extinguishing device with multi-zone linkage activation according to claim 2, characterized in that: The fixing device (12) comprises a first limiting piece (121) and a second limiting piece (122); one end of the first limiting piece (121) is provided with a positioning hole, and the second limiting piece (122) is hinged on the positioning hole.

4. The trigger mechanism of a kitchen equipment fire extinguishing device with multi-zone linkage activation according to claim 3, characterized in that: The first limiting piece (121) and the second limiting piece (122) are completely consistent in shape; the second limiting piece (122) is flipped and arranged at the top of the first limiting piece (121); a rope limiting hook (4) is arranged at the bottom end of the first limiting piece (121); and an alloy sheet limiting hook (5) is arranged on the right side of the rope limiting hook (4).

5. The trigger mechanism of a kitchen equipment fire extinguishing device with multi-zone linkage activation according to claim 4, characterized in that: Two positioning holes are symmetrically arranged at the left and right ends of the temperature-sensitive alloy sheet (13), and the temperature-sensitive alloy sheet (13) is arranged on a temperature-sensitive alloy sheet (13) limiting hook of the fixing device (12).

6. The trigger mechanism of a kitchen equipment fire extinguishing device with multi-zone linkage activation according to claim 1, characterized in that: The three-way crankshaft (6) comprises a crankshaft body (61), a first pipe interface (62), a second pipe interface (63) and a third pipe interface (64); the first pipe interface (62), the second pipe interface (63) and the third pipe interface (64) are fixedly connected to the crankshaft body (61); the first pipe interface (62) and the second pipe interface (63) are horizontally arranged, and the third pipe interface (64) is vertically arranged on the crankshaft body (61).

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