CN216798570U - Embedded spraying device for building fire engineering - Google Patents

Abstract

The utility model provides a spray set for embedded building fire engineering, wherein a fixing ring is sleeved on the outer side surface of an installation seat, a fixing bolt is vertically arranged, the head part is embedded and propped against the bottom surface of the fixing ring, the vertical solid fixed ring of wearing to establish in middle part, the tail end exposes on solid fixed ring, supplementary spacing inserted bar level sets up, one end is located fixed intracavity and keeps away from the mount pad for fixing bolt's middle part, the middle part is along being close to and keeping away from the portable lateral wall of keeping away from the mount pad of wearing to establish fixed chamber of direction level of mount pad, the other end is kept away from the mount pad and is exposed outside solid fixed ring for the one end of supplementary spacing inserted bar, the vertical setting of fly leaf is located between the one end of supplementary spacing inserted bar and fixing bolt's the middle part, connect the one end of supplementary spacing inserted bar and support and lean on fixing bolt's middle part, first elastic component level sets up and is located between lateral wall and the fly leaf and supports respectively and lean on and connect both. The utility model can be stably connected and fixed with the suspended ceiling and has better use effect.

Description

Embedded spraying device for building fire engineering

Technical Field

The utility model relates to the technical field of spraying devices, in particular to the technical field of spraying devices for building fire engineering, and specifically relates to an embedded spraying device for building fire engineering.

Background

The fire-fighting spray header is used for a fire-fighting spray system, and when a fire disaster occurs, water is sprayed out through the spray header water splashing disc to extinguish the fire. Common types of showerheads are: a droop type, an upright type, a normal type and a side wall type.

But above-mentioned type's shower head is for guaranteeing its normal work, all stretches out outside the room furred ceiling during the installation, influences the room furred ceiling and levels and clean and tidy effect. Therefore, an embedded spray header appears, but the embedded spray header is usually connected with a suspended ceiling in an embedded mode through fixing bolts, and in the using process, the spray header is fixed only by means of the connecting strength of the fixing bolts, so that the structure is not stable enough, and the using effect is poor.

Therefore, hope to provide an embedded spraying device for building fire engineering, it can be fixed with the suspended ceiling is stable to be connected, and the result of use is better.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide the embedded spraying device for the building fire protection engineering, which can be stably connected and fixed with a suspended ceiling, has a good using effect and is suitable for large-scale popularization and application.

The utility model also aims to provide the spray device for the embedded building fire-fighting engineering, which has the advantages of ingenious design, simple structure, simple and convenient manufacture and low cost, and is suitable for large-scale popularization and application.

In order to achieve the above object, the present invention provides an embedded spraying device for building fire protection engineering, comprising a mounting seat and a spraying mechanism, wherein the spraying mechanism is embedded in the mounting seat, and the bottom surface of the spraying mechanism is exposed out of the bottom surface of the mounting seat and is located at the same horizontal plane with the bottom surface of the mounting seat, and the spraying device for embedded building fire protection engineering is characterized by further comprising a fixing ring, a fixing bolt, a movable plate, an auxiliary limiting inserted rod and a first elastic member, wherein:

the utility model discloses a fixing device for fixing a position on a wall, including fixing ring, solid fixed ring, fixed bolt, fixed ring's head, fixed bolt, fixed ring, fixed bolt's middle part is vertical wears to establish and supports and lean on fixed ring's bottom surface in, fixed bolt's middle part is vertical wears to establish fixed chamber, the one end of supplementary spacing inserted bar is located fixed chamber and for fixed bolt's middle part keep away from the mount pad, the middle part of supplementary spacing inserted bar is along being close to and keeping away from the orientation level of mount pad is portable wears to establish keeping away from of fixed chamber the lateral wall of mount pad, the other end of supplementary spacing inserted bar for the one end of supplementary spacing inserted bar keep away from the mount pad exposes at the lateral wall of mount pad Outside the fixed ring, the vertical setting of fly leaf is in fixed intracavity and be located the one end of supplementary spacing inserted bar with fixing bolt's middle part between, the fly leaf is connected the one end of supplementary spacing inserted bar and support and lean on fixing bolt's middle part, first elastic component level sets up fixed intracavity and be located the lateral wall with between the fly leaf and support respectively and lean on and connect the lateral wall with the fly leaf is used for making the fly leaf orientation the mount pad support and lean on fixing bolt's middle part.

Preferably, the end face of the head of the fixing bolt is flush with the bottom surface of the mounting seat.

Preferably, the other end of the auxiliary limiting insertion rod is a tapered plug, and the tapered plug is tapered towards the direction away from the mounting seat.

Preferably, the side wall is horizontally provided with a through hole, the through hole is arranged along the direction close to and far away from the mounting seat, and the middle part of the auxiliary limiting insertion rod is horizontally movably arranged in the through hole along the direction close to and far away from the mounting seat in a penetrating manner.

Preferably, the spray system for embedded building fire engineering further comprises an inclined guide plate, the inclined guide plate is located in the fixed cavity, the lower end of the movable plate is connected with the upper end of the inclined guide plate, and the lower end of the inclined guide plate extends downwards towards the direction away from the mounting seat.

Preferably, the number of the fixing components formed by the fixing bolt, the movable plate, the auxiliary limiting insertion rod and the first elastic piece is multiple, and the fixing components are arranged at intervals along the circumferential direction of the fixing ring.

Preferably, the bottom surface of the mounting seat is provided with a mounting groove, a notch of the mounting groove is arranged downwards, the spraying mechanism comprises a splash pan, a telescopic pipe, a water conveying pipe, a second elastic piece, a fusible metal sheet and a sealing cover, the splash pan, the sealing cover and the fusible metal sheet are all horizontally arranged, the fusible metal sheet is embedded in the notch of the mounting groove and is connected with the notch of the mounting groove, the bottom surface of the fusible metal sheet is flush with the bottom surface of the mounting seat, the splash pan and the sealing cover are both positioned in the mounting groove, the sealing cover is positioned on the fusible metal sheet, the splash pan is positioned on the sealing cover, the second elastic piece is vertically arranged in the mounting groove and is positioned between the bottom surface of the mounting groove and the splash pan and is respectively abutted against and connected with the bottom surface of the mounting groove and the splash pan, the water pipe is arranged in the mounting seat, the upper end of the water pipe is exposed out of the top surface of the mounting seat, the lower end of the water pipe is exposed out of the bottom of the mounting groove, and the telescopic pipe is vertically arranged in the mounting groove, is positioned between the bottom of the mounting groove and the splash tray and is respectively connected with the bottom of the mounting groove and the splash tray.

More preferably, the water delivery pipe is vertically arranged.

More preferably, the bellows is a bellows.

More preferably, the fusible metal sheet is a fusible alloy sheet.

The utility model has the following beneficial effects:

1. the fixing ring of the spray device for the embedded building fire fighting project is sleeved on the outer side surface of the mounting seat, the fixing bolt is vertically arranged, the head is embedded in and abutted against the bottom surface of the fixing ring, the middle part is vertically penetrated through the fixing ring, the tail end is exposed on the fixing ring, the auxiliary limiting inserted rod is horizontally arranged, one end of the auxiliary limiting inserted rod is positioned in the fixing cavity and far away from the mounting seat relative to the middle part of the fixing bolt, the middle part can be horizontally and movably penetrated through the side wall of the fixing cavity far away from the mounting seat along the direction close to and far away from the mounting seat, the other end of the auxiliary limiting inserted rod is far away from the mounting seat relative to one end of the auxiliary limiting inserted rod and exposed outside the fixing ring, the movable plate is vertically arranged and positioned between one end of the auxiliary limiting inserted rod and the middle part of the fixing bolt, one end of the auxiliary limiting inserted rod is connected and abutted against the middle part of the fixing bolt, the first elastic piece is horizontally arranged and positioned between the side wall and the movable plate and respectively abutted against and connected with the two, therefore, it can be fixed with the suspended ceiling is stable to be connected, and the result of use is better, is suitable for extensive popularization and application.

2. The fixing ring of the spray device for the embedded building fire fighting project is sleeved on the outer side surface of the mounting seat, the fixing bolt is vertically arranged, the head is embedded in and abutted against the bottom surface of the fixing ring, the middle part is vertically penetrated through the fixing ring, the tail end is exposed on the fixing ring, the auxiliary limiting inserted rod is horizontally arranged, one end of the auxiliary limiting inserted rod is positioned in the fixing cavity and far away from the mounting seat relative to the middle part of the fixing bolt, the middle part can be horizontally and movably penetrated through the side wall of the fixing cavity far away from the mounting seat along the direction close to and far away from the mounting seat, the other end of the auxiliary limiting inserted rod is far away from the mounting seat relative to one end of the auxiliary limiting inserted rod and exposed outside the fixing ring, the movable plate is vertically arranged and positioned between one end of the auxiliary limiting inserted rod and the middle part of the fixing bolt, one end of the auxiliary limiting inserted rod is connected and abutted against the middle part of the fixing bolt, the first elastic piece is horizontally arranged and positioned between the side wall and the movable plate and respectively abutted against and connected with the two, therefore, the novel LED lamp is ingenious in design, simple in structure, simple and convenient to manufacture, low in cost and suitable for large-scale popularization and application.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description and accompanying drawings, wherein like reference numerals refer to like parts throughout the several views, and wherein like reference numerals refer to like parts throughout.

Drawings

Fig. 1 is a schematic front sectional view of an embodiment of the embedded sprinkler for fire protection of buildings according to the present invention.

Fig. 2 is an enlarged schematic view of region a in fig. 1.

Fig. 3 is an enlarged schematic view of region B in fig. 1.

(symbol description)

1, mounting a base; 2, a spraying mechanism; 3, fixing a ring; 4, fixing a bolt; 5 a movable plate; 6 auxiliary limit inserted rods; 7 a first elastic member; 8 fixing the cavity; 9 through holes; 10 inclining the guide plate; 11, mounting a groove; 12, a water splashing disc; 13 a telescopic tube; 14 water conveying pipes; 15 a second elastic member; 16 fusible metal sheets; and 17, sealing the cover.

Detailed Description

In order to clearly understand the technical contents of the present invention, the following examples are given in detail.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, the spray device for embedded building fire protection engineering includes a mounting base 1, a spray mechanism 2, a fixing ring 3, a fixing bolt 4, a movable plate 5, an auxiliary limiting insertion rod 6 and a first elastic member 7, wherein:

the spraying mechanism 2 is embedded in the mounting seat 1, the bottom surface of the spraying mechanism 2 is exposed out of the bottom surface of the mounting seat 1 and is positioned at the same horizontal plane with the bottom surface of the mounting seat 1, the fixing ring 3 is sleeved on the outer side surface of the mounting seat 1, the bottom surface of the fixing ring 3 is flush with the bottom surface of the mounting seat 1, the fixing bolt 4 is vertically arranged, the head of the fixing bolt 4 is embedded and supported in the bottom surface of the fixing ring 3, the middle part of the fixing bolt 4 vertically penetrates through the fixing ring 3, the tail end of the fixing bolt 4 is exposed on the fixing ring 3, the auxiliary limiting insertion rod 6 is horizontally arranged, a fixing cavity 8 is arranged in the fixing ring 3, the middle part of the fixing bolt 4 vertically penetrates through the fixing cavity 8, one end of the auxiliary limiting insertion rod 6 is positioned in the fixing cavity 8 and is far away from the mounting seat 1 relative to the middle part of the fixing bolt 4, the middle part of the auxiliary limit inserted rod 6 can horizontally and movably penetrate through the side wall of the fixed cavity 8 far away from the installation seat 1 along the direction close to and far away from the installation seat 1, the other end of the auxiliary limit inserted bar 6 is far away from the mounting seat 1 and exposed outside the fixing ring 3 relative to one end of the auxiliary limit inserted bar 6, the movable plate 5 is vertically arranged in the fixed cavity 8 and is positioned between one end of the auxiliary limit inserted rod 6 and the middle part of the fixed bolt 4, the movable plate 5 is connected with one end of the auxiliary limit inserted rod 6 and is abutted against the middle part of the fixed bolt 4, the first elastic element 7 is horizontally arranged in the fixed cavity 8 and located between the side wall and the movable plate 5 and respectively abutted against and connected with the side wall and the movable plate 5 for abutting the movable plate 5 against the middle of the fixed bolt 4 towards the mounting seat 1.

With the arrangement, after the fixing bolt 4 is pulled out downwards, the first elastic element 7 extends elastically to push the movable plate 5 to move towards the mounting seat 1, so as to drive the auxiliary limiting insertion rod 6 to move towards the mounting seat 1, and the other end of the auxiliary limiting insertion rod 6 retracts into the fixing ring 3 and is not exposed outside the fixing ring 3; when upwards inserting fixing bolt 4, through fixing bolt 4 promotes fly leaf 5 moves towards the direction of keeping away from mount pad 1 to compress first elastic component 7 and promote supplementary spacing inserted bar 6 moves towards the direction of keeping away from mount pad 1, makes the other end of supplementary spacing inserted bar 6 stretch out solid fixed ring 3.

In order to ensure the flatness of the installed ceiling of the present invention, please refer to fig. 1-2, in an embodiment of the present invention, the end surface of the head of the fixing bolt 4 is flush with the bottom surface of the installation base 1. Guarantee the planarization, comparatively pleasing to the eye.

The fixing bolt 4 may be any suitable fixing bolt, as shown in fig. 1-2, and in an embodiment of the present invention, the fixing bolt 4 is a countersunk head screw.

The number of the auxiliary limiting insertion rods 6 can be determined according to needs, preferably, the number of the auxiliary limiting insertion rods 6 is multiple, and the auxiliary limiting insertion rods 6 are vertically arranged in parallel at intervals. Referring to fig. 1, in an embodiment of the present invention, the number of the auxiliary limiting insertion rods 6 is 3.

The other end of the auxiliary limit inserting rod 6 may have any suitable shape, as shown in fig. 1-2, and in an embodiment of the present invention, the other end of the auxiliary limit inserting rod 6 is a tapered plug, and the tapered plug is tapered toward a direction away from the mounting seat 1. The taper plug can be conveniently inserted into a suspended ceiling.

The number of the first elastic members 7 may be determined as required, and preferably, the number of the first elastic members 7 is plural, and the plural first elastic members 7 are vertically arranged in parallel and at an interval. Referring to fig. 1 to 2, in an embodiment of the present invention, the number of the first elastic members 7 is 2.

The first elastic member 7 may be any suitable elastic member, as shown in fig. 1-2, and in an embodiment of the present invention, the first elastic member 7 is a spring.

The middle of the auxiliary limiting insertion rod 6 horizontally movably penetrates through the side wall of the fixing cavity 8, which is far away from the mounting seat 1, in the direction close to and far away from the mounting seat 1, and any suitable structure can be adopted, please refer to fig. 1-2, in a specific embodiment of the utility model, the side wall is horizontally provided with a through hole 9, the through hole 9 is arranged in the direction close to and far away from the mounting seat 1, and the middle of the auxiliary limiting insertion rod 6 horizontally movably penetrates through the through hole 9 in the direction close to and far away from the mounting seat 1.

The embedded type spraying device for building fire protection engineering can also comprise any other suitable components, please refer to fig. 1-2, in an embodiment of the utility model, the embedded type spraying device for building fire protection engineering further comprises an inclined guide plate 10, the inclined guide plate 10 is located in the fixed cavity 8, the lower end of the movable plate 5 is connected with the upper end of the inclined guide plate 10, and the lower end of the inclined guide plate 10 extends downwards in a direction away from the mounting base 1.

With the adoption of the arrangement, when the fixing bolt 4 is inserted upwards, the tail end of the fixing bolt 4 firstly contacts the lower end of the inclined guide plate 10, along with the vertical insertion of the fixing bolt 4, the inclined guide plate 10 is pushed to move towards the direction away from the mounting seat 1, the movable plate 5 is driven to move towards the direction away from the mounting seat 1 until the tail end of the fixing bolt 4 contacts the upper end of the inclined guide plate 10, then the movable plate 5 is attached to move upwards, and the movable plate 5 is not pushed to move towards the direction away from the mounting seat 1.

In order to make the installation of the present invention more stable, preferably, the number of the fixing assemblies composed of the fixing bolt 4, the movable plate 5, the auxiliary limiting inserted rod 6 and the first elastic member 7 is plural, and the plural fixing assemblies are arranged at intervals along the circumferential direction of the fixing ring 3. Referring to fig. 1, in an embodiment of the present invention, the number of the fixing assemblies is 2, and 2 fixing assemblies are arranged in a left-right symmetrical manner. In the case that the sprinkler device for a fire protection project of an embedded type structure further includes an inclined guide plate 10, the fixing assembly further includes the inclined guide plate 10.

The spraying mechanism 2 may have any suitable structure, for example, the spraying mechanism 2 may be a conventional fire sprinkler, as shown in fig. 1 and 3, in an embodiment of the present invention, the mounting base 1 is provided with a mounting groove 11 on a bottom surface thereof, a notch of the mounting groove 11 is disposed downward, the spraying mechanism 2 includes a splash plate 12, a telescopic pipe 13, a water pipe 14, a second elastic member 15, a fusible metal sheet 16 and a cover 17, the splash plate 12, the cover 17 and the fusible metal sheet 16 are all horizontally disposed, the fusible metal sheet 16 is embedded in the notch of the mounting groove 11 and connected with the notch of the mounting groove 11, the bottom surface of the fusible metal sheet 16 is flush with the bottom surface of the mounting base 1, the splash plate 12 and the cover 17 are both disposed in the mounting groove 11, the cover 17 is disposed on the fusible metal sheet 16, the splash pan 12 is located on the cover 17, the second elastic element 15 is vertically arranged in the mounting groove 11, located between the bottom of the mounting groove 11 and the splash pan 12 and respectively abutted against and connected with the bottom of the mounting groove 11 and the splash pan 12, the water pipe 14 is arranged in the mounting seat 1, the upper end of the water pipe 14 is exposed out of the top surface of the mounting seat 1, the lower end of the water pipe 14 is exposed out of the bottom of the mounting groove 11, and the telescopic pipe 13 is vertically arranged in the mounting groove 11, located between the bottom of the mounting groove 11 and the splash pan 12 and respectively connected with the bottom of the mounting groove 11 and the splash pan 12.

The number of the second elastic members 15 may be determined as required, and preferably, the number of the second elastic members 15 is plural, and the plural second elastic members 15 are horizontally spaced from each other. Referring to fig. 1, in an embodiment of the present invention, the number of the second elastic members 15 is 2, and 2 second elastic members 15 are arranged in a left-right symmetrical manner.

The second elastic member 15 can be any suitable elastic member, and referring to fig. 1 and 3, in an embodiment of the present invention, the second elastic member 15 is a spring.

The water duct 14 may be arranged in any suitable direction, please refer to fig. 1 and 3, in a specific embodiment of the present invention, the water duct 14 is arranged vertically.

The bellows 13 may be any suitable bellows, see fig. 1 and 3, in a particular embodiment of the utility model the bellows 13 is a bellows.

The fusible metal sheet 16 may be a fusible metal sheet of any suitable material, and in one embodiment of the utility model, the fusible metal sheet 16 is a fusible alloy sheet.

When the device is installed, firstly, a groove which is matched with the installation seat 1 and the fixing ring 3 is formed in the suspended ceiling, and then an auxiliary fixing hole which is matched with the auxiliary limiting inserted rod 6 is formed in the side wall of the groove; the utility model which is not inserted with the fixing bolt 4 is arranged in the groove; then, upwards pass solid fixed ring 3 with fixing bolt 4 and be connected with the tank bottom of recess, promote simultaneously through fixing bolt 4 that fly leaf 5 moves towards the direction of keeping away from mount pad 1, and then promote the direction of supplementary spacing inserted bar 6 orientation keeping away from mount pad 1 and remove to stretch out solid fixed ring 3 and insert supplementary fixed orifices, assist fixed ring 3 and fix, make solid fixed ring 3 be difficult for droing, strengthen the stability of connecting, the result of use is better.

When the ambient temperature rises to a certain temperature, the fusible metal sheet 16 is heated and melted, the sealing cover 17 falls off, the splash plate 12 is ejected downwards under the action of the second elastic piece 15 and is positioned below the mounting groove 11, the extension tube 13 extends at the moment, water enters the splash plate 12 through the water conveying tube 14 and the extension tube 13, and then the water is sprayed out of the splash plate 12 to extinguish fire.

Compared with the prior art, the utility model has the following beneficial effects:

1. the bottom surface that sprays the mechanism is located same horizontal plane with the bottom surface of mount pad, and solid fixed ring's bottom surface flushes with the bottom surface of mount pad, guarantees that the room furred ceiling levels and clean and tidy effect.

2. When the fixing bolt is not inserted, the auxiliary limiting insertion rod is retracted into the fixing ring under the matching of the first elastic piece and the movable plate and is not exposed outside the fixing ring, so that the fixing ring can be conveniently connected with the suspended ceiling; after inserting fixing bolt, it is fixed with the furred ceiling through fixing bolt, and through the cooperation of fixing bolt and fly leaf, promote supplementary spacing inserted bar and stretch out solid fixed ring and insert the furred ceiling in, assist fixed ring and fix for gu fixed ring is difficult for droing, strengthen the stability of connection, the result of use is better.

Therefore, by adopting the spray mechanism, the fixing ring is fixed by the fixing bolt, and is also fixed in an auxiliary manner by the auxiliary limiting insertion rod, so that the fixing ring is not easy to fall off, the connection stability is enhanced, the spray mechanism is not easy to fall off, and the use effect is better.

In conclusion, the spray device for the embedded type building fire engineering can be stably connected and fixed with the suspended ceiling, has the advantages of better use effect, ingenious design, simple structure, simple and convenient manufacture and low cost, and is suitable for large-scale popularization and application.

It will thus be seen that the objects of the utility model have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments may be modified without departing from the principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the claims.

Claims (10)

1. The utility model provides an embedded spraying device for building fire engineering, includes the mount pad and sprays the mechanism, it inlays to establish to spray the mechanism in the mount pad, the bottom surface that sprays the mechanism exposes the bottom surface of mount pad and with the bottom surface of mount pad be located same horizontal plane, a serial communication port, embedded spraying device for building fire engineering still includes solid fixed ring, fixing bolt, fly leaf, supplementary spacing inserted bar and first elastic component, wherein:

the fixing ring is sleeved on the outer side surface of the mounting seat, the bottom surface of the fixing ring is flush with the bottom surface of the mounting seat, the fixing bolt is vertically arranged, the head of the fixing bolt is embedded and supported on the bottom surface of the fixing ring, the middle part of the fixing bolt vertically penetrates through the fixing ring, the tail end of the fixing bolt is exposed on the fixing ring, the auxiliary limiting insertion rod is horizontally arranged, a fixed cavity is formed in the fixing ring, the middle part of the fixing bolt vertically penetrates through the fixed cavity, one end of the auxiliary limiting insertion rod is located in the fixed cavity and is far away from the mounting seat relative to the middle part of the fixing bolt, the middle part of the auxiliary limiting insertion rod is close to and far away from the direction level of the mounting seat, the fixed cavity is movably penetrated through, the side wall of the mounting seat is far away from the side wall of the mounting seat, and the other end of the auxiliary limiting insertion rod is far away from the mounting seat relative to one end of the auxiliary limiting insertion rod and is exposed on the mounting seat Outside the fixed ring, the vertical setting of fly leaf is in fixed intracavity and be located the one end of supplementary spacing inserted bar with fixing bolt's middle part between, the fly leaf is connected the one end of supplementary spacing inserted bar and support and lean on fixing bolt's middle part, first elastic component level sets up fixed intracavity and be located the lateral wall with between the fly leaf and support respectively and lean on and connect the lateral wall with the fly leaf is used for making the fly leaf orientation the mount pad support and lean on fixing bolt's middle part.

2. A fire protection sprinkler system for an embedded building as defined in claim 1, wherein the head of said anchor bolt has an end surface flush with the bottom surface of said mounting seat.

3. The fire-fighting engineering sprinkler of an embedded building as recited in claim 1, wherein the other end of the auxiliary limit inserted link is a tapered plug, and the tapered plug is tapered toward a direction away from the mounting seat.

4. The embedded spraying device for building fire protection engineering as claimed in claim 1, wherein the side wall is horizontally provided with a through hole, the through hole is arranged along the direction close to and away from the mounting seat, and the middle part of the auxiliary limit inserted rod is horizontally movably inserted into the through hole along the direction close to and away from the mounting seat.

5. The sprinkler device for embedded building fire protection engineering of claim 1, further comprising an inclined guide plate, wherein the inclined guide plate is located in the fixed cavity, the lower end of the movable plate is connected to the upper end of the inclined guide plate, and the lower end of the inclined guide plate extends downward in a direction away from the mounting seat.

6. The spray system of claim 1, wherein the number of fixing members comprising the fixing bolt, the movable plate, the auxiliary limit rod and the first elastic member is plural, and the plural fixing members are provided at intervals in the circumferential direction of the fixing ring.

7. The embedded spraying device for building fire protection engineering according to claim 1, wherein the bottom surface of the mounting seat is provided with a mounting groove, a notch of the mounting groove is arranged downward, the spraying mechanism comprises a splash plate, a telescopic pipe, a water pipe, a second elastic member, a fusible metal sheet and a cover, the splash plate, the cover and the fusible metal sheet are all horizontally arranged, the fusible metal sheet is embedded in the notch of the mounting groove and connected with the notch of the mounting groove, the bottom surface of the fusible metal sheet is flush with the bottom surface of the mounting seat, the splash plate and the cover are both located in the mounting groove, the cover is located on the fusible metal sheet, the splash plate is located on the cover, the second elastic member is vertically arranged in the mounting groove and located between the bottom surface of the mounting groove and the splash plate and abuts against and is connected with the bottom surface of the mounting groove and the splash plate respectively, the water pipe is arranged in the mounting seat, the upper end of the water pipe is exposed out of the top surface of the mounting seat, the lower end of the water pipe is exposed out of the bottom of the mounting groove, and the telescopic pipe is vertically arranged in the mounting groove, is positioned between the bottom of the mounting groove and the splash tray and is respectively connected with the bottom of the mounting groove and the splash tray.

8. The embedded spraying device for building fire protection engineering as claimed in claim 7, wherein the water pipe is vertically arranged.

9. A fire protection project embedded sprinkler according to claim 7, wherein the extension tube is a bellows tube.

10. The embedded sprinkler for fire protection of buildings according to claim 7, wherein the fusible metal sheet is a fusible alloy sheet.

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