Supporting and fixing structure for ventilation pipe to penetrate through firewall

Abstract

The supporting and fixing structure for the ventilation pipe to penetrate through the firewall comprises a plurality of sets of supporting and fixing frames and a protective sleeve, the ventilation pipe penetrates through a fixing hole of the firewall, and the protective sleeve is located at the penetrating position of the ventilation pipe and the protective wall and fixed to the outer portion of the ventilation pipe. Each set of supporting and fixing frame comprises two fireproof hanging rods, a bearing plate facilitating supporting of the ventilation pipe, two sets of fixing components and two sets of channel steel, each set of channel steel is installed at the lower end of the concrete beam, and the top end of each fireproof hanging rod is detachably installed at the bottom of the corresponding set of channel steel through the corresponding set of fixing components; the bottom end of each protective hanging rod sequentially penetrates through the bearing plate and the corresponding supporting angle plate from top to bottom and then is locked and fixed through a connecting nut in a threaded mode. The top end of the fireproof suspender and the channel steel at the lower end of the concrete beam are detachably installed through the fixing component, the whole fireproof suspender is very convenient to disassemble and assemble, the protection sleeve is arranged at the penetrating position of the ventilation pipe and the protection wall, and the ventilation pipe is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a duct wall -penetrating construction technology field especially a kind of support fixing structure for ventilation pipe through fire wall. BACKGROUND

[0002] In the construction process of building structure, in order to maintain the fire safety of building structure, the construction process of installing duct through fire wall is usually installed, and the fire wall is a partition body set to prevent fire spreading, and installing duct through fire wall is mainly to ensure the normal operation of fire fighting system in fire.

[0003] The specific process of the existing duct through fire wall is as follows: a hole with a diameter larger than the duct is formed on the fire wall, the ventilation pipe passes through the hole of the fire wall, a fixed rod is used to hoist the ventilation pipe to the floor, and the gap between the duct and the hole of the fire wall is sealed with cement mortar. The existing duct wall fixing design has the following shortcomings:

[0004] 1) only one fixed rod is used to hoist and fix the duct, which leads to poor overall stability of the device and is not convenient for hoisting and fixing the duct;

[0005] 2) cement mortar is directly used to seal the duct outside the wall, and when the gap between the duct and the wall is small, the duct is easily damaged;

[0006] 3) most of the existing wall ducts do not have a cushioning layer, which leads to damage of the duct due to long-term friction with the wall, and cracks are easily generated in the wall due to long-term vibration of the duct. INVENTION CONTENTS

[0007] Therefore, the utility model provides a support fixing structure which sets several groups of support fixing frames for hoisting ventilation pipe, each group of support fixing frame is provided with two groups of protective hangers, and the support plate can hoist the ventilation pipe placed on the support plate, the top end of the fireproof hanger is detachably installed with the channel steel at the lower end of the concrete beam by using the fixing member, the whole fireproof hanger is very convenient to disassemble and assemble, a protective sleeve is arranged at the penetration of the ventilation pipe and the protective wall, the ventilation pipe is prevented from being damaged due to small gap between the ventilation pipe and the wall, the ventilation pipe is prevented from being damaged due to long-term friction with the wall, and the maintenance cost of the ventilation pipe is reduced.

[0008] The utility model solves the above technical problems by the following technical solutions:

[0009] The application discloses a support fixing structure for a ventilation pipe penetrating a fireproof wall, which comprises support fixing frames and a protective sleeve.

[0010] Further, a fireproof flexible layer is arranged between the fixing hole of the fireproof wall and the protective sleeve outside the ventilation pipe.

[0011] Further, an anchor bolt and a leveling gasket are arranged at the mounting position of each channel steel and the concrete beam, the leveling gasket is arranged between the channel steel and the concrete beam, a first fixing hole is arranged at the top of each channel steel, the screw rod of the anchor bolt is sequentially arranged through the first fixing hole at the top of the channel steel and the leveling gasket from bottom to top, and the channel steel is mounted at the lower end of the concrete beam through the connecting nut of the anchor bolt.

[0012] Further, each fixing member comprises a double nut and a fixing gasket, a second fixing hole is arranged at the bottom of each channel steel, and the top end of each fireproof suspender is sequentially arranged through the second fixing hole at the bottom of each channel steel and the fixing gasket from bottom to top, and the top end of each fireproof suspender is detachably mounted at the bottom of each channel steel through the threaded connection of the double nut.

[0013] Further, a fireproof valve is arranged at the middle part of the ventilation pipe, the fireproof valve is connected with the ventilation pipe, and the fireproof valve is arranged at one side of the fireproof wall.

[0014] Further, an independent support hanger is arranged at the top of the fireproof valve, and the fireproof valve is hung below the concrete beam through the independent support hanger.

[0015] Further, the independent support hanger comprises two suspenders, two sets of channel steel lugs, two sets of fastening nuts, a fixing nut and a fixing block, the bottom end of the fixing block is fixed to the top of the fireproof valve, the two suspenders are symmetrically arranged between the fixing block and the concrete beam, each channel steel lug is arranged at the lower end of the concrete beam, the top end of each suspender is arranged through the bottom of each channel steel lug and is fixedly connected with the channel steel lug through the fastening nut, and the bottom end of each fireproof suspender is connected with the fixing block at the top of the fireproof valve through the fixing nut.

[0016] Compared with the prior art, the technical scheme of the utility model has at least the following beneficial effects:

[0017] 1) The support fixing structure comprises a plurality of groups of support fixing frames and protective sleeves, the ventilation pipe passes through the fixing hole of the fireproof wall, the protective sleeve is located at the penetrating part of the ventilation pipe and the protective wall and is fixed to the outside of the ventilation pipe, each group of support fixing frames comprises two fireproof hangers, a supporting plate for supporting the ventilation pipe, two groups of fixing members and two groups of channel steels, the two fireproof hangers are symmetrically installed between the supporting plate and the concrete beam, each group of channel steels is installed at the lower end of the concrete beam, the top end of each fireproof hanger is detachably installed at the bottom of each group of channel steels through each group of fixing members, the bottom end of each fireproof hanger is fixed to the supporting plate, and the fixing part of each fireproof hanger and the supporting plate is provided with a supporting angle plate and a connecting nut, and the bottom end of each fireproof hanger is sequentially screwed and locked through the connecting nut after passing through the supporting plate and the supporting angle plate from top to bottom. The utility model adopts the two fireproof hangers of each group of support fixing frames to hoist the ventilation pipe placed on the supporting plate, the top end of the fireproof hanger and the channel steel at the lower end of the concrete beam are detachably installed through the fixing members, the whole fireproof hanger is very convenient to disassemble and assemble, the protective sleeve is arranged at the penetrating part of the ventilation pipe and the protective wall, the ventilation pipe is prevented from being damaged due to the small gap between the ventilation pipe and the wall, and the ventilation pipe is prevented from being damaged due to long-term friction with the wall.

[0018] 2) The utility model fills the fireproof flexible layer between the fixing hole of the fireproof wall and the protective sleeve outside the ventilation pipe, the fireproof flexible layer is filled to play a buffering protection role when the ventilation pipe shakes under pressure, the fireproof flexible layer has fireproof property, the fireproof effect of the whole structure is improved, and the damage caused by fire is greatly reduced.

[0019] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the following will be combined with the preferred embodiments and the drawings, and will be described in detail as follows. DRAWINGS

[0020] Figure 1 It is the use state diagram that the ventilation pipe of the utility model passes through the fireproof wall;

[0021] Figure 2 It is the use state diagram that the ventilation pipe of the utility model passes through the fireproof wall; Figure 1 It is the detail enlarged view of node A in the utility model;

[0022] Figure 3 It is the detail enlarged view of node B in the utility model; Figure 1 It is the detail enlarged view of node B in the utility model;

[0023] Figure 4 It is a structural schematic view of the fire damper of the utility model;

[0024] Figure 5 It is a structural schematic view of the fire damper of the utility model from another angle;

[0025] Figure 6 It is a schematic view of the relationship between the louver blade, the actuating mechanism and the connecting rod mechanism of the utility model;

[0026] Figure 7 It is a schematic view of the relationship between the louver blade, the actuating mechanism and the connecting rod mechanism of the utility model from another angle.

[0027] In the figure: support fixing frame 1, fireproof hanger 11, supporting plate 12, fixed component 13, double nut 131, fixed gasket 132, channel steel 14, anchor bolt 15, leveling gasket 16, support angle plate 17, connecting nut 18, protective sleeve 2, fireproof flexible layer 21, fireproof wall 3, concrete beam 4, fire damper 5, valve 51, side plate 511, top plate 512, bottom plate 513, connecting plate 514, waist-shaped hole 515, connecting lug seat 516, louver blade 52, blade shaft 521, connecting rod mechanism 53, connecting rod 531, connecting piece 532, rotating shaft 533, connecting strip 534, actuating mechanism 54, shell 541, actuating handle 542, connecting head 543, temperature sensor 55, reset spring 56, ventilation pipe 6, independent support hanger 7, hanger 71, channel steel hanger lug 72, fastening nut 73, fixed nut 74, fixed block 75. DETAILED DESCRIPTION

[0028] The utility model will become apparent from the following detailed description in conjunction with the attached drawings, which are included by way of example and illustrate the principles of the utility model. Other aspects, features, and advantages of the utility model will become apparent to those skilled in the art from the detailed description, which, taken in conjunction with the accompanying drawings, will disclose the principles of the utility model. In the drawings, the same or similar components are denoted by the same reference numerals.

[0029] As Figures 1-7As shown, the utility model embodiment one provides a support fixed structure that ventilation pipe 6 passes through fireproof wall 3, this support fixed structure includes convenient ventilation pipe 6 hoist to be under the end of concrete beam 4 several groups of support fixed frame 1 and protective sleeve pipe 2, several groups of support fixed frame 1 are mutually spaced distribution in the below of concrete beam 4 to hoist and fix for ventilation pipe 6, fireproof wall 3 is equipped with the fixed hole of size greater than ventilation pipe 6, ventilation pipe 6 passes through the fixed hole of fireproof wall 3, protective sleeve pipe 2 is located the place of ventilation pipe 6 with the protection wall and is fixed to the outside of ventilation pipe 6, every group of support fixed frame 1 includes two fireproof hanger bars 11, the support plate 12 convenient for supporting ventilation pipe 6, two groups of fixed components 13, two groups of channel steel 14, two fireproof hanger bars 11 are mutually symmetrical and are installed between support plate 12 and concrete beam 4, every group of channel steel 14 is installed in the lower end of concrete beam 4, the installation place of every group of channel steel 14 with concrete beam 4 is equipped with anchor bolt 15 and leveling spacer 16, leveling spacer 16 is placed between channel steel 14 and concrete beam 4, the top of every group of channel steel 14 is equipped with first fixed hole, the screw rod of anchor bolt 15 is sequentially passed through first fixed hole of channel steel 14 top, leveling spacer 16 after through anchor bolt 15's connecting nut 18 and installs channel steel 14 in the lower end place of concrete beam 4. When realizing specifically, this anchor bolt 15 selects M10 anchor bolt 15, the middle part of leveling spacer 16 is equipped with third fixed hole, to pass through leveling spacer 16 for the screw rod of anchor bolt 15, place leveling spacer 16 between channel steel 14 and concrete beam 4 or floor, can eliminate the influence of uneven concrete beam 4 above channel steel 14, if not pad flat, concrete beam 4 can exist gap, easily enter water and oxidize, thereby lead to the rust corrosion of post-anchored anchor bolt 15, lead to channel steel 14 not firmly installed on concrete beam 4, lead to fireproof hanger bar 11 fixed on channel steel 14 not stable, appear to fall etc. Circumstances, thereby influence fireproof hanger bar 11 hoist and fix for ventilation pipe 6, still, if not set up leveling spacer 16, directly adopt anchor bolt 15 and fix channel steel 14 on concrete beam 4, the contact area of channel steel 14 bottom with concrete beam 4 surface is small, under the action of larger fixed force, can produce very big local pressure in contact point, possibly crushes the surface of concrete beam 4, lead to concrete peeling, influence concrete beam 4's structural integrity, the setting of leveling spacer 16 is one aspect to increase the contact area between channel steel 14 and concrete beam 4, add leveling spacer 16 after, pressure will be dispersed to greater area, reduce the risk of damage to concrete. The top of every fireproof hanger bar 11 is detachably installed at the bottom of every group of channel steel 14 through every group of fixed components 13, the bottom of every fireproof hanger bar 11 is fixed on support plate 12, the fixed place of every protective hanger bar 71 and support plate 12 is equipped with support angle plate 17 and connecting nut 18, the bottom of every protective hanger bar 71 is sequentially passed through support plate 12, support angle plate 17 after through connecting nut 18 screw thread lock and fix from top to bottom. When realizing specifically, this fireproof hanger bar 11 adopts hot-dip galvanizing hanger bar 71.In the embodiment, the protective sleeve 2 is an annular gasket made of a rubber material, which is fixed at the gap between the fixing hole of the fireproof wall 3 and the ventilation pipe 6.

[0030] In other embodiments, the protective sleeve 2 can also be a steel sleeve.

[0031] In the embodiment of the utility model, the fireproof flexible layer 21 is filled between the fixing hole of the fireproof wall 3 and the protective sleeve 2 outside the ventilation pipe 6. In specific implementation, the fireproof flexible layer 21 of the utility model is made of inorganic fireproof mortar or diatomite. Through the cooperation of the filled fireproof flexible layer 21 and the protective sleeve 2, the traditional situation of sealing the ventilation pipe 6 after penetrating the wall with cement mortar is changed, the fireproof flexible layer 21 is filled instead of cement mortar, the protective sleeve 2 plays a role in preventing the ventilation pipe 6 from shaking, the designed fireproof flexible layer 21 can play a role in buffering and protection when the ventilation pipe 6 shakes under pressure, the fireproof flexible layer 21 has fireproof property, the fireproof effect of the whole structure is increased, and the loss caused by fire is greatly reduced.

[0032] Each group of the fixing member 13 of the utility model includes a double nut 131 and a fixing washer 132, the bottom of each group of the channel steel 14 is provided with a second fixing hole, the top end of each fireproof suspender 11 is sequentially threaded through the second fixing hole of the bottom of each group of the channel steel 14, the fixing washer 132 and then connected with the double nut 131 by screw thread to detachably install the top end of each fireproof suspender 11 on the bottom of each group of the channel steel 14, the fixing member 13 adopts the double nut 131 and the fixing washer 132, which facilitates the detachable installation of the top end of each fireproof suspender 11 on the bottom of each group of the channel steel 14 and facilitates the installation and dismounting of the fireproof suspender 11.

[0033] The utility model discloses a fire valve 5 is provided with in the middle part of ventilation pipe 6, and fire valve 5 is connected with ventilation pipe 6, and fire valve 5 is also located at one side of fireproof wall 3, and independent support hanger 7 is provided at the top of fire valve 5, and fire valve 5 is hung below concrete beam 4 through independent support hanger 7. Wherein, the independent support hanger 7 includes two hanger rods 71, two groups of channel steel lugs 72, two groups of fastening nuts 73, a fixed nut 74 and a fixed block 75, the bottom end of the fixed block 75 is fixed to the top of the fire valve 5, the two hanger rods 71 are symmetrically installed between the fixed block 75 and the concrete beam 4, each group of channel steel lugs 72 is installed at the lower end of the concrete beam 4, the top end of each hanger rod 71 is threaded through the bottom of each group of channel steel lugs 72 and then fixedly connected with the channel steel lug 72 through the fastening nut 73, and the bottom end of each fireproof suspender 11 is connected with the fixed block 75 at the top of the fire valve 5 through the fixed nut 74.

[0034] In the embodiment, the fireproof valve 5 comprises a valve 51, a plurality of louvers 52, a connecting rod mechanism 53, an actuating mechanism 54, the plurality of louvers 52 are sequentially and spacedly installed in the valve 51 from top to bottom, the edges of two adjacent louvers 52 can be overlapped with each other, the vertical middle part of each louver 52 is provided with a louver shaft 521, the connecting rod mechanism 53 is installed on the other side of the valve 51, one end of the louver shaft 521 of the plurality of louvers 52 is connected with the connecting rod mechanism 53, the actuating mechanism 54 is installed at the middle part of the one side of the valve 51, the other end of the louver shaft 521 of the louver 52 at the middle part of the valve 51 is connected with one end of the actuating mechanism 54, the valve 51 drives the louver shaft 521 of the louver 52 at the middle part of the valve 51 to rotate through the actuating mechanism 54, the valve 51 is provided with a temperature sensor 55, and the temperature sensor 55 is connected with the actuating mechanism 54.

[0035] The actuating mechanism 54 of the utility model includes casing 541, execution handle 542, connecting head 543, connecting head 543 installs in casing 541, one end of connecting head 543 passes through casing 541 and is connected with the louver shaft 521 of louver 52 at the middle part of valve 51, one end of execution handle 542 is hinged with the other end of connecting head 543, this connecting rod mechanism 53 includes linkage lever 531, with a plurality of louvers 52 equal number a plurality of connecting pieces 532, with connecting piece 532 equal number a plurality of rotating shafts 533, a plurality of connecting pieces 532 are sequentially and spacedly distributed along linkage lever 531 from top to bottom, linkage lever 531 is hinged with one end of a plurality of connecting pieces 532 through a plurality of rotating shafts 533, the other end of a plurality of connecting pieces 532 is hinged with the louver shaft 521 of a plurality of louvers 52.

[0036] In the embodiment, the fireproof valve 5 comprises a reset spring 56 located on the other side of the valve 51, one end of the reset spring 56 is installed on the other side of the valve 51 through the connecting lug 516, the connecting strip 543 is arranged at the connecting piece 532 of the lowermost part of the connecting rod 531, one end of the connecting strip 543 is connected with one end of the blade shaft 521 of the lower blade 52 of the valve 51, and the other end of the reset spring 56 is connected with the other end of the connecting strip 543.

[0037] When a fire occurs, the temperature in the fireproof valve 5 can be detected through the temperature sensor 55, and since the ventilation pipe 6 is connected with the fireproof valve 5, when the temperature in the ventilation pipe 6 reaches the temperature set by the temperature sensor, the operating handle 542 of the operating mechanism 54 works, the connecting head 543 is rotated during the rotation of the operating handle 542, the valve 51 is rotated through the driving of the connecting head 543 on the blade shaft 521 of the middle part of the valve 51, the connecting rod mechanism 53 is connected with one end of the blade shaft 521 of the plurality of blades 52, and the connecting rod mechanism 53 is rotated under the driving of the connecting rod mechanism 53, so that the plurality of blades 52 are rotated, so that the valve 51 is closed, and the purpose of fire prevention is achieved.

[0038] The working state of the fireproof valve 5 is as follows.

[0039] Under normal circumstances, the valve 51 of the fireproof valve 5 is in an open state, and normal ventilation is achieved.

[0040] When a fire occurs, the temperature in the ventilation pipe 6 reaches the temperature set by the temperature sensor, and through the cooperation of the operating mechanism 54 and the connecting rod mechanism 53, the plurality of blades 52 are rotated, the edges of the adjacent two blades 52 are overlapped with each other, the valve 51 is automatically closed, the function of isolating the fire source and blocking the smoke is achieved, the inner wall and the outer wall of the valve 51 are coated with a fireproof coating layer, the transmission of the flame temperature to the fireproof valve 5 is delayed, the function of isolating the flame to the fireproof valve 5 is achieved, and the service life of the fireproof valve 5 is delayed, so that valuable time is obtained for rescue and fire extinguishing.

[0041] Compared with the prior art, the technical scheme disclosed in the above embodiment has the following beneficial effects.

[0042] In the above embodiment, the support fixing structure is provided with a plurality of groups of support fixing frames 1, each group of support fixing frames 1 is provided with two groups of protective hangers 71, the ventilation pipe 6 placed on the supporting plate 12 can be hoisted, the stability of hoisting and fixing of the ventilation pipe 6 is improved, the top end of the fireproof hanger 11 and the channel steel 14 at the lower end of the concrete beam 4 are detachably installed by using the fixing member 13, the bottom end of the fireproof hanger 11 and the supporting angle plate 17 are detachable by using the connecting nut 18, the disassembly and hoisting of the fireproof hanger 11 are facilitated, the quick installation and disassembly of the overall structure of the support fixing frame 1 are realized, the installation demand of the ventilation pipe 6 of most building structures through the fire wall 3 is met, the construction efficiency of the ventilation pipe 6 through the wall can be improved, the construction period is shortened, the protective sleeve 2 is arranged at the penetrating position of the ventilation pipe 6 and the protective wall, an expansion and contraction space can be provided for the ventilation pipe 6, the ventilation pipe 6 is prevented from being damaged due to the small gap between the ventilation pipe 6 and the wall, the ventilation pipe 6 is prevented from being damaged due to long-term friction with the wall, under the action of the protective sleeve 2, the vibration of the ventilation pipe 6 can be prevented from being transmitted to the fire wall 3 or the concrete beam 4, so that the fire wall 3 or the concrete beam 4 is vibrated, the integrity of the structure of the fire wall 3 or the concrete beam 4 is prevented from being damaged due to vibration, in addition, the protective sleeve 2 is arranged outside the ventilation pipe 6, the ventilation pipe 6 is convenient to replace and maintain in the later period, the maintenance workers are facilitated, the maintenance cost of the ventilation pipe 6 in the later period is reduced, and the support fixing structure has high popularization value.

[0043] The above is the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the art, without departing from the principle of the utility model, a plurality of improvements and refinements can be made, and these improvements and refinements are also regarded as the protection range of the utility model.

Claims

1. A support structure for passing a ventilation duct through a fire wall, characterized by: The support fixing structure comprises a plurality of sets of support fixing frames and protective sleeves for hoisting the ventilation pipe to the lower end of the concrete beam, the sets of support fixing frames are distributed below the concrete beam at intervals, the fireproof wall is provided with fixing holes, the ventilation pipe passes through the fixing holes of the fireproof wall, the protective sleeves are located at the penetration of the ventilation pipe and the fireproof wall and are fixed to the outside of the ventilation pipe, each set of support fixing frame comprises two fireproof hangers, a support plate for supporting the ventilation pipe, two sets of fixing members and two sets of channel steels, the two fireproof hangers are symmetrically installed between the support plate and the concrete beam, each set of channel steel is installed at the lower end of the concrete beam, the top end of each fireproof hanger is detachably installed at the bottom of each set of channel steel through each set of fixing member, the bottom end of each fireproof hanger is fixed to the support plate, and the fixed position of each fireproof hanger and the support plate is provided with a support angle plate and a connecting nut, and the bottom end of each fireproof hanger passes through the support plate, the support angle plate and the connecting nut from top to bottom in sequence and is then threadedly locked.

2. The support and fixing structure for a ventilation duct penetrating a firewall according to claim 1, characterized in that: The fixing holes of the fireproof wall and the protective sleeves outside the ventilation pipe are fixed with a fireproof flexible layer.

3. The support and fixing structure for a ventilation duct penetrating a firewall according to claim 1, characterized in that: The installation position of each set of channel steel and the concrete beam is provided with an anchor bolt and a leveling washer, the leveling washer is placed between the channel steel and the concrete beam, the top of each set of channel steel is provided with a first fixing hole, and the threaded rod of the anchor bolt passes through the first fixing hole of the top of the channel steel and the leveling washer from bottom to top in sequence and then threadedly locks the channel steel to the lower end of the concrete beam through the connecting nut of the anchor bolt.

4. The support and fixing structure for a ventilation duct which penetrates a firewall according to claim 1, characterized in that: Each set of fixing member comprises a double nut and a fixing washer, the bottom of each set of channel steel is provided with a second fixing hole, and the top end of each fireproof hanger passes through the second fixing hole of the bottom of each set of channel steel and the fixing washer from bottom to top in sequence and is then threadedly connected by the double nut to detachably install the top end of each fireproof hanger to the bottom of each set of channel steel.

5. The support and fixing structure for a ventilation duct which penetrates a firewall according to claim 1, characterized in that: The middle part of the ventilation pipe is provided with a fireproof valve, the fireproof valve is connected with the ventilation pipe, and the fireproof valve is located on one side of the fireproof wall.

6. The support and fixing structure for a ventilation duct that penetrates a firewall according to claim 5, characterized in that: The top of the fireproof valve is provided with an independent support hanger, and the fireproof valve is hoisted below the concrete beam through the independent support hanger.

7. The support and fixing structure for a ventilation duct that penetrates a firewall according to claim 6, characterized in that: The independent support hanger comprises two hangers, two sets of channel steel lugs, two sets of fastening nuts, a fixing nut and a fixing block, the bottom end of the fixing block is fixed to the top of the fireproof valve, the two hangers are symmetrically installed between the fixing block and the concrete beam, each set of channel steel lug is installed at the lower end of the concrete beam, the top end of each hanger penetrates the bottom of each set of channel steel lug and is then fixedly connected with the channel steel lug through the fastening nut, and the bottom end of each fireproof hanger is connected with the fixing block at the top of the fireproof valve through the fixing nut.

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