CN219100515U - Assembled building roof structure - Google Patents

Abstract

The utility model discloses an assembled building roof structure, which relates to the technical field of roof design and comprises a supporting rod, an assembling unit, a fixed supporting unit and a rainproof sealing unit, wherein two sides of the supporting rod are respectively connected with two inclined plate fixed supporting units through the assembling unit, the inclined plate fixed supporting units comprise a rectangular groove II, a T-shaped clamping block, a bolt III, a bolt IV, a fixed rod, a bolt V and a rectangular groove III, rectangular grooves II are respectively formed in the front side and the rear side of the lower end of two bearing rods of the assembling unit, the two rectangular grooves II are respectively connected with protruding parts of the two T-shaped clamping blocks in a penetrating way, screw holes in the side surfaces of the lower ends of the bearing rods are fixedly connected with the protruding parts of the T-shaped clamping blocks through the bolt IV, the fixed rods are arranged between the lower ends of the two bearing rods, the reinforcing is firm, the rainproof effect is good, the installation is simple and rapid, and water accumulation is not easy.

Description

Assembled building roof structure

Technical Field

The utility model relates to the technical field of roof design, in particular to an assembled building roof structure.

Background

The assembled building is characterized in that a large amount of field operation work in the traditional building mode is transferred to a factory, building components and accessories (such as floors, wallboards, stairs, balconies and the like) are manufactured in the factory, the building components and accessories are transported to a building construction site, and are assembled and installed on site in a reliable connection mode, and the assembled building mainly comprises a prefabricated assembled concrete structure, a steel structure, a modern wood structure building and the like, and is representative of the modern industrial production mode due to the adoption of standardized design, industrial production, assembled construction, information management and intelligent application.

The existing assembled building roof structure has the disadvantages of weak reinforcement, poor rainproof effect, complicated installation and easy water accumulation on the roof.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the assembled building roof structure which is firm in reinforcement, good in rainproof effect, simple and quick to install, not easy to accumulate water on the roof, and capable of effectively solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an assembled building roof structure comprises a supporting rod, an assembling unit, a fixed supporting unit and a rainproof sealing unit;

and (3) supporting rods: two sides are respectively connected with two sloping plates through an assembling unit;

fixed support unit: the two ends of the fixing rod are respectively provided with a rectangular groove III, the two protruding parts of the two T-shaped clamping blocks are respectively connected in a penetrating way, the two inner ends of the bolt V are respectively connected with the protruding parts of the T-shaped clamping blocks in a penetrating way, the two side edges of the two T-shaped clamping blocks are respectively connected with the bolt III in a threaded way, and the bolt III is connected with the protruding parts of the T-shaped clamping blocks in a threaded way;

rain-proof sealing unit: is arranged at the upper end of the supporting rod.

The bracing piece is used for connecting whole device, fix the swash plate, the assembly unit is used for the concatenation whole device, rectangular channel two, T type joint piece joint comes fixed dead lever and bearing bar, the third of bolt is used for letting T type joint piece fix on the bearing bar, the fourth of bolt is used for letting T type joint piece more firmly fix on the bearing bar, the dead lever is used for supporting whole device, the fifth of bolt is used for letting T type joint piece fix in rectangular channel three, thereby fix dead lever and bearing bar, increase device bearing capacity, rain-proof sealing unit is used for protecting the device in raining.

Further, the fixed support unit still contains rectangular channel IV, circular through-hole, support column, joint post, rectangle logical groove, joint round hole, rectangle groove V, rectangle joint strip, support base and bolt V, the circular through-hole has been seted up to the side of dead lever, the rectangle groove IV of intercommunication circular through-hole has been seted up at the top of dead lever, the both ends are equipped with the support column in the circular through-hole interlude respectively, and the joint round hole has been seted up to one end that one of them support column is located the circular through-hole, and the rectangle groove V of intercommunication joint round hole inner is seted up to the tip upside of this support column, the joint post is located the one end connection joint post of circular through-hole to another support column, rectangle logical groove has been seted up to the upside of joint post, joint post and joint round hole grafting, the bottom of joint strip inserts rectangle groove IV in proper order, rectangle groove V and rectangle through-groove V, the bottom surface of the top fixed connection bracing piece of joint strip, the one end that two support columns kept away from the dead lever is connected support base through bolt V respectively.

The joint post and joint round hole joint for let two support columns link together, support the base and be used for supporting two swash plates, increase bearing capacity, six be used for letting support base and support column be connected together and support the swash plate, the round through-hole is used for fixed joint post and joint round hole, the rectangle joint strip is used for together fixed support column and dead lever, support the device, the rectangle leads to the groove, rectangle groove four and the five be used for letting the dead lever pass and fix, so fix the device.

Further, the assembly unit comprises a T-shaped groove, a T-shaped fixed block, a first bolt, a first rectangular groove, a T-shaped connecting block, a fixed plate, a bearing rod and a second bolt, wherein the T-shaped groove is respectively formed in the left side and the right side of the supporting rod, the T-shaped fixed block is connected in a sliding mode in the two T-shaped grooves, the protruding portions of the two T-shaped fixed blocks are respectively fixedly connected with one end of the sloping plate, the first rectangular groove is respectively formed in the middle of the end faces of the front side and the rear side of the supporting rod, the first rectangular groove is respectively fixedly connected with the protruding portion of the T-shaped connecting block through the first bolt, the front side and the rear side of the lower end surface of the supporting rod are respectively fixedly connected with the fixed plate through the second bolt, and the lower end surfaces of the two fixed plates are respectively fixedly connected with the top ends of the bearing rod.

T type groove and T type fixed block joint are the same as fixing the swash plate at the bracing piece, easy to assemble, and bolt one is used for fixing T type connecting block at the bracing piece, prevents that T type fixed block from sliding, and rectangular groove one is used for T type connecting block joint, protects the both sides of T type groove, and bolt two is used for letting the fixed plate fix on the bracing piece, and the fixed plate is used for supporting the bearing rod, protects whole device and increases bearing capacity.

Further, the assembly unit still contains sealing strip and seal groove, the front and back both sides terminal surface of bracing piece is located the position of T type groove outward flange and fixedly connected with sealing strip respectively, and the seal groove has been seted up respectively to the position that two T type fixed block inboard are located T type fixed block bulge outward flange, two seal grooves and the sealing strip joint that corresponds.

Sealing strip and seal groove joint are used for letting T type fixed block and bracing piece fixed more firm, prevent that T type fixed block from sliding, increase the steadiness.

Further, the rain-proof sealing unit comprises a triangular rain-proof cover, a bolt seven, an L-shaped sealing plate, a fixed bottom plate and a bolt eight, wherein the left side and the right side of the top end surface of the supporting rod are respectively fixedly connected with the fixed bottom plate through a plurality of equidistant bolts eight, the top ends of the two fixed bottom plates are fixedly connected with the bottom ends of the triangular rain-proof cover, the left side and the right side of the supporting rod are respectively positioned at the connecting positions of the T-shaped groove and the outer part of the T-shaped fixing block and are respectively fixedly connected with the L-shaped sealing plate through a plurality of equidistant bolts seven, the two L-shaped sealing plates are respectively fixedly connected on the supporting rod and the corresponding inclined plates, and the two supporting bases are respectively fixedly connected with the inner sides of the two inclined plates.

The triangular rain cover is used for enabling rainwater to flow from the triangular rain cover to the inclined plate and flow out from the inclined plate, the bolt seven is used for fixing the fixed bottom plate, the fixed bottom plate is used for supporting the triangular rain cover to fix the triangular rain cover, the bolt eight is used for fixing the L-shaped sealing plate, the L-shaped sealing plate is used for preventing roof seepage, the waterproof effect is improved, and the waterproof effect is achieved.

Furthermore, the rainproof sealing unit further comprises water through tanks, and a plurality of equidistant water through tanks are respectively arranged on the outer side surfaces of the two inclined plates.

The water channel is used for preventing water accumulation on the roof when raining, thereby causing corrosion to the house and increasing the rainproof effect.

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

1. this assembled building roof structure has following benefit: the T-shaped fixing block is fixedly arranged on the support rod, the T-shaped fixing block is fixedly connected with the support rod through the T-shaped groove, the T-shaped fixing block is fixedly connected with the support rod through the bolt I, the T-shaped fixing block is prevented from sliding, the rectangular groove I is used for being fixedly connected with the T-shaped connecting block through the clamping, two sides of the T-shaped groove are protected, the fixing plate is fixedly arranged on the support rod through the bolt II, and the fixing plate is used for supporting the bearing rod, so that the whole device is spliced, and the installation is convenient;

2. this assembled building roof structure has following benefit: the rain-proof sealing unit is arranged, the triangular rain-proof cover is used for enabling rainwater to flow from the triangular rain-proof cover to the inclined plate and flow out from the inclined plate, the bolt seven is used for fixing the fixed bottom plate, the fixed bottom plate is used for supporting the triangular rain-proof cover to fix the triangular rain-proof cover, the bolt eight is used for fixing the L-shaped sealing plate, and the L-shaped sealing plate is used for preventing roof from leaking water so as to prevent damage to the roof in rainy days;

3. this assembled building roof structure has following benefit: firm reinforcement, good rainproof effect, simple and quick installation and difficult water accumulation on the roof.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure of the portion A in FIG. 1 according to the present utility model;

FIG. 3 is a schematic side cross-sectional view of the present utility model;

FIG. 4 is a schematic view of a partially enlarged structure of the present utility model at B in FIG. 3;

FIG. 5 is a schematic view of a partially enlarged structure of the present utility model at C in FIG. 3;

FIG. 6 is a schematic view of a partial cross-sectional structure of a fixed support unit of the present utility model;

fig. 7 is a schematic view of the back structure of the present utility model.

In the figure: 1 supporting rod, 2 sloping plate, 3 assembly unit, 31T type groove, 32T type fixed block, 33 bolt one, 34 rectangular groove one, 35T type connecting block, 36 sealing strip, 37 sealing groove, 38 fixed plate, 39 bearing rod, 310 bolt two, 4 fixed supporting unit, 41 rectangular groove two, 42T type clamping block, 43 bolt three, 44 bolt four, 45 fixed rod, 46 bolt five, 47 rectangular groove three, 48 rectangular groove four, 49 round through hole, 410 supporting column, 411 clamping column, 412 rectangular through groove, 413 clamping round hole, 414 rectangular groove five, 415 rectangular clamping strip, 416 supporting base, 417 bolt six, 5 rain-proof sealing unit, 51 triangle rain cover, 52 bolt seven, 53L type sealing plate, 54 through water groove, 55 fixed bottom plate, 56 bolt eight.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present embodiment provides a technical solution: an assembled building roof structure comprises a supporting rod 1, an assembling unit 3, a fixed supporting unit 4 and a rainproof sealing unit 5;

support bar 1: two sides are respectively connected with two sloping plates 2 through an assembling unit 3;

fixed support unit 4: the two ends of the fixing rod 45 are respectively provided with a rectangular groove III 47, the two protruding parts of the two T-shaped clamping blocks 42 are respectively connected with the two sides of the two T-shaped clamping blocks 42 in a threaded manner, the two sides of the two T-shaped clamping blocks 42 are respectively connected with the bolts five 46 in a threaded manner, the two sides of the two T-shaped clamping blocks 42 are respectively connected with the bolts three 43 in a threaded manner, and the three sides of the bolts 39 are respectively connected with the threaded manner;

rain-proof sealing unit 5: the rain-proof sealing unit 5 comprises a triangular rain-proof cover 51, a bolt seven 52, an L-shaped sealing plate 53, a fixed bottom plate 55 and a bolt eight 56, wherein the left side and the right side of the top end surface of the supporting rod 1 are fixedly connected with the fixed bottom plate 55 through a plurality of equidistant bolts eight 56, the top ends of the two fixed bottom plates 55 are fixedly connected with the bottom end of the triangular rain-proof cover 51, the left side and the right side of the supporting rod 1 are positioned at the connecting positions outside the T-shaped groove 31 and the T-shaped fixing block 32 and are fixedly connected with the L-shaped sealing plate 53 through a plurality of equidistant bolts seven 52, the two L-shaped sealing plates 53 are fixedly connected with the supporting rod 1 and the corresponding inclined plates 2, and the two supporting bases 416 are fixedly connected with the inner sides of the two inclined plates 2.

The triangular rain cover 51 is used for enabling rainwater to flow from the triangular rain cover 51 to the inclined plate 2 and flow out of the inclined plate 2, the seven bolts 52 are used for fixing the fixing bottom plate 55, the fixing bottom plate 55 is used for supporting the triangular rain cover 51 to fix the triangular rain cover 51, the eight bolts 56 are used for fixing the L-shaped sealing plate 53, the L-shaped sealing plate 53 is used for preventing roof seepage, and the waterproof effect is improved, so that the waterproof effect is achieved.

The rainproof sealing unit 5 further comprises water through grooves 54, and a plurality of equidistant water through grooves 54 are respectively formed in the outer side surfaces of the two inclined plates 2.

The water channel 54 is used for preventing water accumulation on the roof during raining, thereby causing corrosion to the house and increasing the rainproof effect.

The bracing piece 1 is used for connecting whole device, fix swash plate 2, assembly element 3 is used for the concatenation whole device, rectangular channel two 41, T type joint piece 42 joint is fixed dead lever 45 and bearing rod 39, bolt three 43 is used for letting T type joint piece 42 fix on bearing rod 39, bolt four 44 is used for letting T type joint piece 42 more firmly fix on bearing rod 39, dead lever 45 is used for supporting whole device, bolt five 46 is used for letting T type joint piece 42 fix in rectangular channel three 47, thereby fix dead lever 45 and bearing rod 39, increase device bearing capacity, rain-proof sealing unit 5 is used for protecting the device when raining.

The fixed support unit 4 further comprises a rectangular groove IV 48, a circular through hole 49, a support column 410, a clamping column 411, a rectangular through groove 412, a clamping round hole 413, a rectangular groove V414, a rectangular clamping bar 415, a support base 416 and a bolt V417, wherein the circular through hole 49 is formed in the side face of the fixed rod 45, the rectangular groove IV 48 communicated with the circular through hole 49 is formed in the top of the fixed rod 45, the support columns 410 are respectively inserted into the two ends of the circular through hole 49, the clamping round hole 413 is formed in one end of one support column 410 located in the circular through hole 49, the rectangular groove V414 communicated with the inner end of the clamping round hole 413 is formed in the upper side of the end of the support column 410, the clamping column 411 is connected to one end of the other support column 410 located in the circular through hole 49, the rectangular through groove 412 is formed in the upper side of the clamping column 411, the clamping column 411 is spliced with the clamping round hole 413, the bottom end of the clamping bar 415 is sequentially inserted into the rectangular groove IV 48, the rectangular groove V414 and the rectangular through hole 412, the top end of the clamping bar 415 is fixedly connected with the bottom end surface of the support rod 1, and one end of the two support columns 410 are far away from the fixed rod 45 is respectively connected with the base 417 through the bolt V417.

The joint post 411 and joint round hole 413 joint for let two support columns 410 link together, support base 416 is used for supporting two swash plates 2, increase bearing capacity, six 417 of bolts are used for letting support base 416 and support column 410 be connected to together and support swash plate 2, circular through-hole 49 is used for fixed joint post 411 and joint round hole 413, rectangular joint strip 415 is used for fixing support column 410 and dead lever 45 together, support the device, rectangular through-slot 412, rectangular slot four 48 and rectangular slot five 414 are used for letting dead lever 45 pass and fix, thereby fix the device.

The assembling unit 3 comprises a T-shaped groove 31, T-shaped fixed blocks 32, a first bolt 33, a first rectangular groove 34, a T-shaped connecting block 35, a fixed plate 38, a bearing rod 39 and a second bolt 310, wherein the T-shaped groove 31 is respectively formed in the left side and the right side of the supporting rod 1, the T-shaped fixed blocks 32 are connected in a sliding mode in the two T-shaped grooves 31, the protruding portions of the two T-shaped fixed blocks 32 are respectively fixedly connected with one end of the inclined plate 2, the first rectangular grooves 34 are respectively formed in the middle portions of the front end face and the rear end face of the supporting rod 1, the first rectangular grooves 34 are respectively fixedly connected with the protruding portions of the T-shaped connecting block 35 through the first bolt 33, the front side and the rear side of the lower end face of the supporting rod 1 are respectively fixedly connected with the fixed plate 38 through the second bolt 310, and the lower end faces of the two fixed plates 38 are respectively fixedly connected with the top ends of the bearing rod 39.

The T-shaped groove 31 and the T-shaped fixed block 32 are clamped with the inclined plate 2 fixed on the supporting rod 1, the installation is convenient, the first bolt 33 is used for fixing the T-shaped connecting block 35 on the supporting rod 1 to prevent the T-shaped fixed block 32 from sliding, the first rectangular groove 34 is used for clamping the T-shaped connecting block 35 to protect two sides of the T-shaped groove 31, the second bolt 310 is used for enabling the fixed plate 38 to be fixed on the supporting rod 1, and the fixed plate 38 is used for supporting the bearing rod 39 to protect the whole device and increase the bearing capacity.

The assembly unit 3 further comprises sealing strips 36 and sealing grooves 37, the sealing strips 36 are fixedly connected to the positions, located on the outer edges of the T-shaped grooves 31, of the front side and the rear side end faces of the support rod 1, the sealing grooves 37 are respectively formed in the positions, located on the outer edges of the protruding portions of the T-shaped fixing blocks 32, of the inner sides of the two T-shaped fixing blocks 32, and the two sealing grooves 37 are connected with the corresponding sealing strips 36 in a clamping mode.

The sealing strip 36 and the sealing groove 37 are clamped and connected to enable the T-shaped fixing block 32 and the supporting rod 1 to be fixed firmly, the T-shaped fixing block 32 is prevented from sliding, and stability is improved.

The working principle of the assembled building roof structure provided by the utility model is as follows: firstly, the inclined plate 2 is fixed on the supporting rod 1 through the clamping connection of the T-shaped groove 31 and the T-shaped fixed block 32, the installation is convenient, the first bolt 33 is used for fixing the T-shaped connecting block 35 on the supporting rod 1 to prevent the T-shaped fixed block 32 from sliding, the first rectangular groove 34 is used for clamping the T-shaped connecting block 35 to protect two sides of the T-shaped groove 31, the second bolt 310 is used for fixing the fixed plate 38 on the supporting rod 1, the fixed plate 38 is used for supporting the bearing rod 39 to assemble the basic framework, the third bolt 43 is used for fixing the T-shaped clamping block 42 on the bearing rod 39 through the clamping connection of the T-shaped clamping block 42, the fourth bolt 44 is used for fixing the T-shaped clamping block 42 on the bearing rod 39 more firmly, the fixed rod 45 is used for supporting the whole device, the fifth bolt 46 is used for fixing the T-shaped clamping block 42 in the third rectangular groove 47 to fix the fixed rod 45 and the bearing rod 39, then, the two support columns 410 are connected together through the clamping columns 411 and the clamping round holes 413 in a clamping manner, the support base 416 is used for supporting the two inclined plates 2 to increase the bearing capacity, the six bolts 417 are used for connecting the support base 416 and the support columns 410 together to support the inclined plates 2, the round through holes 49 are used for fixing the clamping columns 411 and the clamping round holes 413, the rectangular clamping strips 415 are used for fixing the support columns 410 and the fixing rods 45 together to support the device, the rectangular through grooves 412, the rectangular grooves four 48 and the rectangular grooves five 414 are used for allowing the fixing rods 45 to pass through to fix and increase the bearing capacity of the device, finally, the three-angle rain cover 51 is used for allowing rainwater to flow from the three-angle rain cover 51 to the inclined plates 2 to flow out of the inclined plates 2, the seven bolts 52 are used for fixing the fixing bottom plates 55, the fixing bottom plates 55 are used for supporting the three-angle rain cover 51, to fix the triangular rain cover 51, the eight bolts 56 are used for fixing the L-shaped sealing plate 53, the L-shaped sealing plate 53 is used for preventing water seepage of the roof to increase the waterproof function, and the whole device is spliced.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. An assembled building roof structure, characterized in that: comprises a supporting rod (1), an assembling unit (3), a fixed supporting unit (4) and a rainproof sealing unit (5);

support bar (1): two sides are respectively connected with two sloping plates (2) through an assembling unit (3);

fixed support unit (4): the two-dimensional clamping device comprises a rectangular groove II (41), a T-shaped clamping block (42), a bolt III (43), a bolt IV (44), a fixing rod (45), a bolt V (46) and a rectangular groove III (47), wherein the rectangular groove II (41) is respectively formed in the front side and the rear side of the lower end of the two bearing rods (39) of the assembly unit (3), the two rectangular grooves II (41) are respectively connected with the protruding parts of the two T-shaped clamping blocks (42) in a penetrating way, the bolt IV (44) propped against the protruding parts of the T-shaped clamping blocks (42) are connected in a threaded way in the side surface screw holes of the lower end of the bearing rods (39), the fixing rod 45 is fixedly connected with the protruding parts of the T-shaped clamping blocks (42) through the bolt IV (44), the fixing rod 45) is arranged between the lower ends of the two bearing rods (39), the two protruding parts of the two T-shaped clamping blocks (42) respectively penetrate through the rectangular groove II (41) to be connected with the protruding parts of the two rectangular groove III (42), the two ends of the fixing rod (45) are respectively connected with the protruding parts of the T-shaped clamping blocks (46), and the two ends of the fixing rod (45) are respectively connected with the two sides of the protruding parts of the T-shaped clamping blocks (42) through the screw threads, and the two ends of the two T-shaped clamping blocks (43) are respectively connected with the two ends of the screw threads of the bolt IV (43;

rainproof sealing unit (5): is arranged at the upper end of the supporting rod (1).

2. A fabricated building roof structure according to claim 1, wherein: the fixing and supporting unit (4) further comprises a rectangular groove IV (48), a round through hole (49), a supporting column (410), a clamping column (411), a rectangular through groove (412), a clamping round hole (413), a rectangular groove V (414), a rectangular clamping strip (415), a supporting base (416) and a bolt V (417), the round through hole (49) is formed in the side face of the fixing rod (45), the rectangular groove IV (48) communicated with the round through hole (49) is formed in the top of the fixing rod (45), the supporting column (410) is respectively inserted into the round through hole (49), the clamping round hole (413) is formed in one end of one supporting column (410) located in the round through hole (49), the rectangular groove V (414) communicated with the inner end of the clamping round hole (413) is formed in the upper side of the end of the supporting column (410), the rectangular through groove (412) is formed in the upper side of the other supporting column (410) located in the round through hole (49), the rectangular through hole (411) is formed in the upper side of the clamping column (411), the clamping column (411) is connected with the rectangular round hole (413), the bottom end of the rectangular round hole (415) is inserted into the rectangular groove IV (415) and the rectangular groove (412) is sequentially connected with the top end of the rectangular groove (415) in turn, one end of each of the two support columns (410) far away from the fixing rod (45) is connected with the support base (416) through bolts six (417).

3. A fabricated building roof structure according to claim 1, wherein: the assembly unit (3) comprises a T-shaped groove (31), a T-shaped fixed block (32), a first bolt (33), a first rectangular groove (34), a T-shaped connecting block (35), a fixed plate (38), a bearing rod (39) and a second bolt (310), wherein the T-shaped groove (31) is respectively formed in the left side and the right side of the supporting rod (1), the T-shaped fixed block (32) is connected in the sliding mode in the two T-shaped grooves (31), the protruding portions of the two T-shaped fixed blocks (32) are respectively and fixedly connected with one end of the inclined plate (2), the first rectangular grooves (34) are respectively formed in the middle of the end faces of the front side and the rear side of the supporting rod (1), the protruding portions of the first rectangular grooves (34) and the second T-shaped connecting block (35) are respectively and fixedly connected with the front side and the rear side of the lower end surface of the supporting rod (1) through the second bolt (310) and the fixed plate (38), and the lower end surfaces of the two fixed plates (38) are respectively and fixedly connected with the top ends of the bearing rod (39).

4. A fabricated building roof structure according to claim 3, wherein: the assembly unit (3) further comprises sealing strips (36) and sealing grooves (37), the sealing strips (36) are fixedly connected to the positions, located on the outer edges of the T-shaped grooves (31), of the front side and the rear side of the supporting rod (1), the sealing grooves (37) are respectively formed in the positions, located on the outer edges of the protruding portions of the T-shaped fixing blocks (32), of the inner sides of the two T-shaped fixing blocks (32), and the two sealing grooves (37) are connected with the corresponding sealing strips (36) in a clamping mode.

5. A fabricated building roof structure according to claim 1, wherein: the rain-proof sealing unit (5) comprises a triangular rain-proof cover (51), bolts seven (52), L-shaped sealing plates (53), a fixed bottom plate (55) and bolts eight (56), wherein the left side and the right side of the top end surface of the supporting rod (1) are fixedly connected with the fixed bottom plate (55) through a plurality of equidistant bolts eight (56), the top ends of the two fixed bottom plates (55) are fixedly connected with the bottom ends of the triangular rain-proof cover (51), the left side and the right side of the supporting rod (1) are positioned at the connecting positions of the outer parts of the T-shaped grooves (31) and the T-shaped fixing blocks (32) respectively and fixedly connected with the L-shaped sealing plates (53) through a plurality of equidistant bolts seven (52), the two L-shaped sealing plates (53) are fixedly connected onto the supporting rod (1) and the corresponding inclined plates (2) respectively, and the two supporting bases (416) are fixedly connected with the inner sides of the two inclined plates (2) respectively.

6. A fabricated building roof structure according to claim 1, wherein: the rainproof sealing unit (5) further comprises water through grooves (54), and a plurality of equidistant water through grooves (54) are respectively formed in the outer side surfaces of the two inclined plates (2).

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