Temperature sensing shear blade fixing device suitable for kitchen fire extinguishing system

Abstract

The utility model relates to a temperature sensing shear blade fixing device suitable for a kitchen fire extinguishing system, which comprises a hoisting support, the hoisting support comprises a suspended ceiling cross beam, guide cylinders are arranged on two sides of the suspended ceiling cross beam, hollow guide channels are arranged in the guide cylinders, and the two guide channels are arranged in a concentric circle mode. A positioning assembly used for installing a temperature sensing shear blade is arranged at the position, located between the two guide cylinders, of the lower end of the suspended ceiling beam, a plurality of counter bores are formed in the suspended ceiling beam, and screws are arranged in the counter bores. Therefore, through the cooperation of the guide cylinder and the POM gasket, the situation that the steel wire rope is blocked due to the fact that the guide cylinder is locally cut off due to rapid friction is avoided in the releasing period, and smooth slipping of the steel wire rope can be facilitated. The temperature sensing shear sheet can be properly hung and connected through the positioning assembly, the pulling stress brought by the steel wire rope is dispersed, and the temperature sensing sheet is prevented from being accidentally snapped.

Description

Technical Field

[0001] The utility model relates to a fixing device used in a kitchen fire extinguishing system, in particular to a fixing device for a temperature-sensitive shear blade suitable for a kitchen fire extinguishing system. Background Art

[0002] For the current kitchen fire extinguishing system, its main triggering method is through the melting of the temperature-sensitive piece, so that the temperature-sensitive shear blade is opened, and then the steel wire rope connected above is loosened. Through the release of the steel wire rope, components such as the air valve connected to the steel wire rope are released.

[0003] At present, the temporary fixing of the temperature-sensitive shear blade mainly uses a lifting bracket to tow the steel wire rope. The temperature-sensitive shear blade is temporarily positioned by pulling it with the steel wire ropes at both left and right ends. In this way, stress is easily concentrated on the temperature-sensitive piece. If the reserved gap during debugging is improper, the temperature-sensitive piece may be broken, resulting in false triggering.

[0004] At the same time, there is also a method of using a hook. After the two temperature-sensitive shear blades are respectively arranged on the hooks, they are then connected to the steel wire rope and the temperature-sensitive piece. However, when the steel wire rope is released, it is easy to cause the temperature-sensitive piece to return in a timely manner, resulting in the steel wire rope being stuck, and ultimately leading to the failure of firing.

[0005] Moreover, currently, for the threading and guiding of the steel wire rope, only a simple circular ring is used. During the release of the steel wire rope, it is very easy to be wound around the circular ring due to the pulling of stress, which may also lead to the ultimate failure of firing.

[0006] In view of the above defects, the designer actively conducts research and innovation in order to create a fixing device for a temperature-sensitive shear blade suitable for a kitchen fire extinguishing system, making it more valuable in industrial use. Content of the Utility Model

[0007] In order to solve the above technical problems, the purpose of the utility model is to provide a fixing device for a temperature-sensitive shear blade suitable for a kitchen fire extinguishing system.

[0008] The fixing device for a temperature-sensitive shear blade suitable for a kitchen fire extinguishing system of the utility model includes a lifting bracket, wherein: the lifting bracket includes a ceiling cross beam, guide cylinders are arranged on both sides of the ceiling cross beam, a hollow guiding channel is arranged in the guide cylinder, the two guiding channels are concentrically arranged with each other, a positioning component for installing the temperature-sensitive shear blade is arranged between the two guide cylinders at the lower end of the ceiling cross beam, a plurality of countersunk holes are arranged on the ceiling cross beam, and screws are arranged in the countersunk holes.

[0009] Further, in the above fixing device for a temperature-sensitive shear blade suitable for a kitchen fire extinguishing system, lower extension rods are arranged on both sides of the ceiling cross beam, and the guide cylinders are arranged on the lower extension rods.

[0010] Furthermore, in the above-mentioned temperature-sensitive shear sheet fixing device applicable to a kitchen fire extinguishing system, a reinforcing rib is provided at the joint of the lower extension rod and the guiding cylinder.

[0011] Furthermore, in the above-mentioned temperature-sensitive shear sheet fixing device applicable to a kitchen fire extinguishing system, a POM washer is arranged inside the guiding cylinder.

[0012] Furthermore, in the above-mentioned temperature-sensitive shear sheet fixing device applicable to a kitchen fire extinguishing system, the positioning assembly includes a bearing plate connected to the ceiling beam, and a rotating shaft is arranged on the bearing plate.

[0013] Furthermore, in the above-mentioned temperature-sensitive shear sheet fixing device applicable to a kitchen fire extinguishing system, a stop plate is arranged on the outer side of the rotating shaft.

[0014] Still further, in the above-mentioned temperature-sensitive shear sheet fixing device applicable to a kitchen fire extinguishing system, a gasket is sleeved on the outer side of the screw.

[0015] By means of the above solution, the utility model has at least the following advantages:

[0016] 1. Through the cooperation of the guiding cylinder and the POM washer, during the release period, it is ensured that the steel wire rope will not be locally cut open due to rapid friction, resulting in jamming, which is convenient for the smooth slipping of the steel wire rope.

[0017] 2. The temperature-sensitive shear sheet can rely on the positioning assembly to achieve proper hanging, disperse the pulling stress brought by the steel wire rope, and avoid accidental breakage of the temperature-sensitive sheet.

[0018] 3. Relying on the existence of the reinforcing rib, abnormal torsion of the guiding cylinder during transportation and assembly can be avoided, without affecting the subsequent threading and guiding of the steel wire rope.

[0019] 4. The overall structure is simple, the existing fixing device can be modified, and the implementation cost is low.

[0020] The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the content of the specification, the following is a detailed description of the preferred embodiment of the utility model in conjunction with the drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front structural schematic diagram of a temperature-sensitive shear sheet fixing device applicable to a kitchen fire extinguishing system.

[0022] Figure 2 is a bottom structural schematic diagram of a temperature-sensitive shear sheet fixing device applicable to a kitchen fire extinguishing system.

[0023] Figure 3 It is a schematic side view of the structure of the temperature-sensitive shear blade fixing device applicable to the kitchen fire extinguishing system.

[0024] The meanings of the reference numerals in the figure are as follows.

[0025] 1 Suspended ceiling cross beam 2 Guide tube

[0026] 3 Countersunk hole 4 Screw

[0027] 5 Lower extension rod 6 Reinforcing rib

[0028] 7 POM washer 8 Bearing piece

[0029] 9 Rotating shaft 10 Stop plate

[0030] 11 Washer Specific implementation manner

[0031] The following combines the drawings and embodiments to further describe in detail the specific implementation manner of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0032] As Figures 1 to 3 The temperature-sensitive shear blade fixing device applicable to the kitchen fire extinguishing system includes a hoisting bracket, and its distinctive feature is that: the hoisting bracket includes a suspended ceiling cross beam 1, which can be combined with the suspended ceiling of the range hood in the kitchen or with the upper floor slab. At the same time, in order to provide the best guidance for the steel wire rope connected to the subsequent temperature-sensitive shear blade and achieve appropriate limit, ensure that it can smoothly pull and apply force to the temperature-sensitive shear blade, and can timely pull the internal device of the fire extinguishing system when the temperature-sensitive shear blade is smoothly opened to achieve effective firing, guide tubes 2 are provided on both sides of the suspended ceiling cross beam 1, and a hollow guiding channel is provided in the guide tube 2. During subsequent layout, the steel wire rope can pass through the guiding channel, and its circumferential direction will be restricted by the guiding channel, and there will be no layout with extreme difference angles. And, in order to achieve better guidance, the two guiding channels are concentrically arranged with each other. During implementation, a positioning component for installing the temperature-sensitive shear blade is provided between the lower ends of the two guide tubes 2 of the suspended ceiling cross beam 1. In this way, it can ensure that the temperature-sensitive shear blade is stably temporarily hung, and it does not need to rely entirely on the force applied by the steel wire ropes at both ends to form a combination, avoiding accidental breakage of the temperature-sensitive piece attached to the temperature-sensitive shear blade due to improper force and preventing mis-triggering. Furthermore, considering the convenience of installation, a number of countersunk holes 3 are provided on the suspended ceiling cross beam 1, and screws 4 are provided in the countersunk holes 3. In this way, stable hoisting combination can be achieved through the screws 4. Of course, other wall nails can be selected according to the structure of the upper floor slab, which will not be elaborated here. Relying on the setting of the countersunk holes 3, the screws 4 will not protrude below the suspended ceiling cross beam 1 and will not block the free stroke of the temperature-sensitive shear blade opening.

[0033] Viewed in conjunction with a preferred embodiment of the present utility model, lower extension rods 5 are provided on both sides of the ceiling cross beam 1, and the guide cylinders 2 are arranged on the lower extension rods 5. In this way, there is a certain gap between the guide cylinders 2 and the ceiling cross beam 1. At the moment when the temperature-sensitive shear blade is opened, it allows the steel wire rope to have an appropriate release space, enabling it to quickly change from the tensioned state to the relaxed state, which is conducive to achieving a rapid firing response. At the same time, in order to prevent the steel wire rope from whipping the guide cylinder 2 and causing its accidental breakage during the release moment, and to avoid the steel wire rope getting stuck, a reinforcing rib 6 is provided at the joint of the lower extension rod 5 and the guide cylinder 2. During preparation, the ceiling cross beam 1 and the guide cylinder 2 can be made of aluminum alloy material.

[0034] Furthermore, a POM washer 7 is provided inside the guide cylinder 2 in the present utility model. In this way, it has appropriate wear resistance and self-lubrication effects. When the steel wire rope is released, it will not cause the steel wire rope to accidentally embed into the edge of the guide cylinder 2 due to the heat generated by high-speed friction. In this way, the release jamming can be effectively avoided.

[0035] In combination with the actual implementation, in order to satisfy the effective combination of the temperature-sensitive shear blade, the positioning assembly includes a bearing plate 8 connected to the ceiling cross beam 1, and a rotating shaft 9 is arranged on the bearing plate 8. During installation, the coupling hole at the upper end of the temperature-sensitive shear blade is sleeved onto the rotating shaft 9. At the same time, in order to prevent the temperature-sensitive shear blade from accidentally slipping during debugging, a stop plate 10 can be arranged outside the rotating shaft 9. The diameter of the stop plate 10 is larger than the coupling hole, which can avoid its lateral slipping while not restricting the rotation of the temperature-sensitive shear blade around the rotating shaft 9. During implementation, the bearing plate 8 with an appropriate factory length can be selected according to the actual routing area of the steel wire rope. In this way, after the temperature-sensitive shear blade is installed in place, it can be smoothly pulled by the steel wire rope.

[0036] Looking further, considering that there may be a horizontal deviation on the upper contact surface of the ceiling cross beam 1 during combination, an excessive deviation will affect the release paths of the two steel wire ropes. At the same time, it may cause the upper ends of the steel wire ropes to be in excessive contact with the guide cylinder 2 in the standby tension state, reducing the release sensitivity. For this reason, a gasket 11 can be sleeved outside the screw 4 in the present utility model. In this way, on the basis of meeting the combination tightness, the final combination inclination angle of the ceiling cross beam 1 can be moderately adjusted to ensure the smooth layout of the subsequent steel wire ropes.

[0037] The working principle of the present utility model is as follows:

[0038] The ceiling cross beam 1 is combined with the range hood ceiling or the upper floor slab. During this period, the angle of the ceiling cross beam 1 is adjusted to ensure that the subsequent inserted steel wire rope does not rub against the inner wall of the guide cylinder 2. And, if necessary, the POM washer 7 can be installed.

[0039] After that, the coupling hole at the upper end of the temperature-sensitive shear blade is sleeved onto the rotating shaft 9, and the stop plate 10 is set.

[0040] Next, pass the steel wire rope through and connect the steel wire rope to the temperature-sensitive shear pieces respectively, making them in a suitable open state, and ensuring that the temperature-sensitive pieces are not pulled off or dropped. When in the standby state, since the temperature-sensitive shear pieces can be properly carried by the rotating shaft 9 and do not entirely rely on the pulling and limiting of the steel wire rope, it is avoided that the temperature-sensitive pieces on them are accidentally pulled off.

[0041] When a fire breaks out, the temperature-sensitive piece is melted by high temperature. The binding force between the temperature-sensitive shear pieces is interrupted, and then they are straightened and opened in a scissor shape. The steel wire ropes at both ends are also released, thereby activating the corresponding fire extinguishing equipment in the kitchen fire extinguishing system.

[0042] During this period, even if the steel wire rope trembles during release, it only makes a sliding contact with the POM washer 7 and will not cause frictional jamming.

[0043] From the above text description and in combination with the attached drawings, it can be seen that after adopting the present utility model, the following advantages are possessed:

[0044] 1. Through the cooperation of the guide cylinder and the POM washer, during release, it is ensured that the steel wire rope will not cause the guide cylinder to be locally cut open due to rapid friction and get jammed, which is convenient for the smooth slipping of the steel wire rope.

[0045] 2. The temperature-sensitive shear pieces can rely on the positioning component to achieve proper hanging, dispersing the pulling stress brought by the steel wire rope and avoiding the temperature-sensitive pieces from being accidentally pulled off.

[0046] 3. Relying on the existence of the reinforcing rib, it is possible to avoid abnormal torsion of the guide cylinder during transportation and assembly, without affecting the subsequent threading and guiding of the steel wire rope.

[0047] 4. The overall structure is simple, and the existing fixing device can be modified, with a low implementation cost.

[0048] In addition, the indicated orientation or positional relationship described in the present utility model is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or structure referred to must have a specific orientation, or be operated in a specific orientation structure. Therefore, it cannot be understood as a limitation to the present utility model.

[0049] The above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A fixed temperature-sensing shear blade device applicable to a kitchen fire extinguishing system, comprising a hoisting bracket, characterized in that: The hoisting bracket includes a ceiling cross beam. Guide cylinders are arranged on both sides of the ceiling cross beam. A hollow guiding channel is arranged in each guide cylinder, and the two guiding channels are concentrically arranged with each other. A positioning component for installing a temperature-sensitive shear piece is arranged between the two guide cylinders at the lower end of the ceiling cross beam. A plurality of counterbore holes are arranged on the ceiling cross beam, and screws are arranged in the counterbore holes.

2. The temperature-sensitive shear piece fixing device applicable to a kitchen fire extinguishing system according to claim 1, characterized in that: Lower extension rods are arranged on both sides of the ceiling cross beam, and the guide cylinders are arranged on the lower extension rods.

3. The temperature-sensitive shear sheet fixing device applicable to the kitchen fire extinguishing system according to claim 2, characterized in that: Reinforcing ribs are arranged at the joint of the lower extension rod and the guide cylinder.

4. The temperature-sensitive shear piece fixing device applicable to a kitchen fire extinguishing system according to claim 1, characterized in that: POM washers are arranged in the guide cylinders.

5. The temperature-sensitive shear blade fixing device applicable to the kitchen fire extinguishing system according to claim 1, characterized in that: The positioning component includes a bearing piece connected to the ceiling cross beam, and a rotating shaft is arranged on the bearing piece.

6. The temperature-sensitive shear piece fixing device applicable to the kitchen fire extinguishing system according to claim 5, characterized in that: A stop plate is arranged on the outer side of the rotating shaft.

7. The temperature-sensitive shear sheet fixing device applicable to a kitchen fire extinguishing system according to claim 1, characterized in that: Washers are sleeved on the outer sides of the screws.

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