Fabricated building external hanging type balcony reinforcing accessory

Abstract

The invention relates to the technical field of building balconies, in particular to an assembly type building external hanging type balcony reinforcing accessory which comprises an assembly type building wall body, a positioning pouring groove is formed in the assembly type building wall body, and a balcony plate is installed in the positioning pouring groove. A mounting plate and a fixing block are sequentially mounted on the right side surface of the fabricated building wall body from top to bottom, a movable shaft is mounted in the fixing block, and a supporting block is mounted on the outer surface of the movable shaft; and the first worm is mounted on the right side surface of the first worm gear. Rotation of the supporting block and ascending of the supporting seat are controlled through the marked arc-shaped mark and the marked vertical and horizontal mark, so that the balcony plate is restored to be in the state of being vertical and horizontal to the fabricated building wall, and therefore the balcony plate and the fabricated building wall can be quickly aligned and perpendicular to each other; and the balcony plate and the fabricated building wall are prevented from being installed in an inclined state during installation.

Description

Technical Field

[0001] The present invention relates to the technical field of building balconies, and particularly to a reinforced fitting for an externally hung balcony of a prefabricated building. Background Art

[0002] A balcony is an extension inside a building and is a place where residents can breathe fresh air, dry clothes, and place potted plants. Generally, there are cantilevered, embedded, corner types, etc. A balcony can not only allow residents to receive sunlight, absorb fresh air, do outdoor exercises, enjoy the view, take a cool, dry clothes, but also with the improvement of living quality in buildings, people's concept of the detailed settings in the living room pursues more comfort, safety, and practicality. The traditional balcony mainly for drying and washing clothes has now become a viewing platform, a sunroom, a gym, a storage room, a sunlit study, etc. with diverse functions. With the continuous development of the construction industry and people's continuous understanding of prefabricated buildings, prefabricated houses have gradually become environmentally friendly and green buildings, and balconies are an important part of prefabricated house buildings.

[0003] In this regard, the prior art patent publication number: CN213114952U discloses a prefabricated externally hung balcony, including a building wall and a balcony slab. A positioning and fixing base plate is installed inside the building wall, and a clamping plate is opened inside the positioning and fixing base plate. The bottom of the clamping plate is fixedly connected with a limiting support plate located inside the positioning and fixing base plate. One side of the clamping plate is fixedly connected with a balcony slab, and one side of the balcony slab extends to the outside of the building wall. Two symmetrically distributed support connecting rods are arranged at the bottom of the balcony slab. By installing a positioning and fixing base plate inside the building wall and using the internal part of the positioning and fixing base plate to be clamped with the clamping plate and the limiting support plate, the position of the balcony slab is limited, making the installation and fixation of the device more convenient. At the same time, the balcony slab is further reinforced and supported by using the support connecting rods and the fastening screw rods, ensuring the stability of the device.

[0004] However, when this balcony slab is installed inside the wall of a prefabricated building, since the balcony slab is installed externally and is relatively heavy, the end of the balcony slab far from the building will drop under the action of gravity. If the position of the balcony slab is not supported, aligned, and reinforced during the connection installation, the balcony slab will be in an inclined state after being connected to the building wall panel. After long-term use, the balcony slab will continue to incline, resulting in a poor overall safety fixation effect. Therefore, there are limitations in overall reinforcement of the balcony slab. Thus, improving and modifying the above problems has become an urgent problem to be solved currently. Summary of the Invention

[0005] The purpose of the present invention is to provide a reinforcement fitting for an external balcony of a prefabricated building, so as to solve the problem proposed in the above-mentioned background technology that since the balcony slab is installed externally and the balcony slab is heavy, one end of the balcony slab far from the building will drop under the action of gravity. If the position of the balcony slab is not supported, aligned and reinforced during connection and installation, the balcony slab will be in an inclined state after being connected to the building wall panel. During long-term use, the balcony slab will continue to incline, resulting in a poor overall safety and fixing effect, and thus there are limitations in the overall reinforcement of the balcony slab.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A reinforcement fitting for an external balcony of a prefabricated building, including a prefabricated building wall. A positioning casting groove is provided inside the prefabricated building wall, and a balcony slab is installed inside the positioning casting groove. An installation plate and a fixing block are sequentially installed on the right surface of the prefabricated building wall from top to bottom. A movable shaft is installed inside the fixing block, a support block is installed on the outer surface of the movable shaft, and a first worm gear is fixedly connected to the front surface of the movable shaft.

[0007] A first worm, the first worm is installed on the right surface of the first worm gear. A connecting shaft is installed at the lower end of the first worm, a second worm is fixedly connected to the lower end of the connecting shaft, a rotating wheel is installed at the lower end of the second worm, a driving shaft is installed at the lower end of the rotating wheel, and a support plate is provided at the lower end of the driving shaft. The support plate is installed on the outer surface of the prefabricated building wall. A marking pen is installed on the back surface of the installation plate, and an arc marking and a vertical and horizontal marking are sequentially provided on the front surface of the balcony slab from top to bottom.

[0008] Preferably, the driving shaft is inserted and installed inside the support plate, and the driving shaft can be rotated manually by a person or used with an external motor.

[0009] Preferably, a second worm gear is meshed and connected to the right surface of the second worm, and a connecting column is fixedly connected to the back surface of the second worm gear.

[0010] Preferably, a bevel gear body is installed on the back surface of the connecting column, a bevel gear column body is meshed and connected to the outer surface of the bevel gear body, a limiting disk is installed on the top surface of the bevel gear column body, a positioning plate is provided on the lower surface of the limiting disk, a fixing plate is installed on the left side of the positioning plate, and the fixing plate is fixedly installed on the right surface of the prefabricated building wall. Both the bevel gear column body and the bevel gear body are installed inside the positioning plate.

[0011] Preferably, a lead screw body is fixedly connected to the top surface of the limiting disk, and a movable ring is provided on the outer surface of the lead screw body.

[0012] Preferably, a connecting plate is fixedly connected to the back surface of the movable ring, a fixing column is fixedly connected to the top surface of the connecting plate, a supporting seat is fixedly connected to the top surface of the fixing column, the top surface of the supporting seat abuts against the lower surface of the supporting block, a limiting rod is inserted and installed inside the connecting plate, and the limiting rod is installed on the upper surface of the positioning plate.

[0013] Preferably, three groups of the positioning plates and the fixing plates are provided, and the three groups of the positioning plates are fixedly installed on the right side surface of the prefabricated building wall.

[0014] Preferably, a locking groove is formed in the top surface of the supporting block, a locking column is installed inside the locking groove, and a trapezoidal block is fixedly connected to the top surface of the locking column.

[0015] Preferably, a groove is formed in the lower surface of the balcony slab, a locking ring is installed on the inner wall at the bottom end of the balcony slab, the locking ring is adapted to the groove, the inner ring of the locking ring is made of rubber, and a fixing frame and a positioning block are installed on the inner side wall of the locking ring in sequence from top to bottom.

[0016] Preferably, a rotating shaft is installed on the left side surface of the fixing frame, a rotating cylinder is installed on the outer surface of the rotating shaft, a clamping plate is fixedly connected to the front surface of the rotating cylinder, and the positioning block abuts against the lower surface of the clamping plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. For the external hanging balcony reinforcement fittings of the prefabricated building, this setting can mark the arc mark and the vertical and horizontal marks on the front surface of the balcony slab by a marker pen when installing the balcony slab. The marked arc mark and vertical and horizontal marks can detect the horizontal state between the installed balcony slab and the prefabricated building wall. Subsequently, by controlling the rotation of the supporting block and the rising of the supporting seat through the marked arc mark and vertical and horizontal marks, the balcony slab can be restored to a vertical and horizontal state with the prefabricated building wall, so that the balcony slab and the prefabricated building wall can be quickly aligned vertically, avoiding the installation of the balcony slab in an inclined state when installing it with the prefabricated building wall.

[0019] 2. For the external hanging balcony reinforcement fittings of the prefabricated building, the installation between the supporting block and the balcony slab can be locked and limited through the setting of the clamping plate, so as to ensure that the supporting block can reinforce and support the balcony slab, making the connection between the supporting block and the balcony slab in a stable connection state. When the supporting block rotates, it can stably drive the balcony slab in an inclined state to return to the correct position. And at this time, on the one hand, the supporting block contacts the lower surface of the balcony slab through the top surface, and on the other hand, through the locking connection between the locking ring and the trapezoidal block, the connection stability effect between the supporting block and the balcony slab can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic three-dimensional view of the structure of the present invention;

[0021] Figure 2 Schematic exploded view of the wall and balcony slab structure of the prefabricated building of the present invention;

[0022] Figure 3 Schematic exploded view of the wall and support block structure of the prefabricated building of the present invention;

[0023] Figure 4 Schematic three-dimensional view of the support block and connecting shaft structure of the present invention;

[0024] Figure 5 Schematic three-dimensional view of the balcony slab and mounting plate structure of the present invention;

[0025] Figure 6 Schematic three-dimensional view of the positioning plate and second worm gear structure of the present invention;

[0026] Figure 7 Schematic three-dimensional view of the second worm gear and connecting plate structure of the present invention;

[0027] Figure 8 Schematic exploded view of the locking column and locking ring structure of the present invention;

[0028] Figure 9 Schematic three-dimensional view of the clamping plate and fixing bracket structure of the present invention.

[0029] In the figure: 1, wall of prefabricated building; 2, positioning pouring groove; 3, balcony slab; 4, fixing block; 5, movable shaft; 6, support block; 7, first worm gear; 8, first worm; 9, connecting shaft; 10, second worm; 11, rotating wheel; 12, driving shaft; 13, mounting plate; 14, marker pen; 15, arc mark; 16, vertical and horizontal mark; 17, second worm gear; 18, connecting column; 19, bevel gear body; 20, bevel gear column body; 21, limiting disc; 22, lead screw body; 23, movable ring; 24, connecting plate; 25, fixing column; 26, support seat; 27, limiting rod; 28, fixing plate; 29, positioning plate; 30, locking groove; 31, locking column; 32, trapezoidal block; 33, locking ring; 35, fixing bracket; 36, rotating shaft; 37, rotating cylinder; 38, clamping plate; 39, positioning block. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-9 , an embodiment provided by the present invention:

[0032] An externally hung balcony reinforcement fitting for prefabricated buildings. The drive shaft 12, marking pen 14, and screw rod body 22 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are all prior arts well-known to those skilled in the art, so they will not be elaborated here. It includes a prefabricated building wall 1. A positioning casting groove 2 is opened inside the prefabricated building wall 1. A balcony slab 3 is installed inside the positioning casting groove 2. An installation plate 13 and a fixing block 4 are sequentially installed on the right surface of the prefabricated building wall 1 from top to bottom. A movable shaft 5 is installed inside the fixing block 4. A support block 6 is installed on the outer surface of the movable shaft 5. A first worm gear 7 is fixedly connected to the front surface of the movable shaft 5. A locking groove 30 is opened on the top surface of the support block 6. A locking post 31 is installed inside the locking groove 30. A trapezoidal block 32 is fixedly connected to the top surface of the locking post 31. A groove is opened on the lower surface of the balcony slab 3. A locking ring 33 is installed on the bottom inner wall of the balcony slab 3. The locking ring 33 and the groove are adapted to each other. The inner ring of the locking ring 33 is made of rubber. Fixing frames 35 and positioning blocks 39 are sequentially installed on the inner side wall of the locking ring 33 from top to bottom. A rotating shaft 36 is installed on the left surface of the fixing frame 35. A rotating cylinder 37 is installed on the outer surface of the rotating shaft 36. A clamping plate 38 is fixedly connected to the front surface of the rotating cylinder 37. The positioning block 39 abuts against the lower surface of the clamping plate 38. When the support block 6 rotates counterclockwise and contacts the lower surface of the balcony slab 3, at this time, the locking ring 33 inside the groove on the lower surface of the balcony slab 3 will be adapted to the trapezoidal block 32. Then when the support block 6 rises, it drives the trapezoidal block 32 to rise. Then the locking ring 33 will move downward on the surface of the trapezoidal block 32. When the locking ring 33 moves downward, at this time, the clamping plate 38 will abut against the outer surface of the trapezoidal block 32. Then the clamping plate 38 follows the descent of the locking ring 33 and rotates through the settings of the rotating cylinder 37 and the rotating shaft 36. Then when the support block 6 is fitted and installed with the lower surface of the balcony slab 3, the locking ring 33 will be at the lower end of the trapezoidal block 32. Then the clamping plate 38 will be on the lower surface of the trapezoidal block 32. Then the upper surface of the clamping plate 38 will abut against the lower surface of the trapezoidal block 32. And through the setting of the positioning block 39, the clamping plate 38 cannot rotate counterclockwise. Through the setting of the clamping plate 38, the installation between the support block 6 and the balcony slab 3 can be locked and limited, so as to ensure that the support block 6 can reinforce and support the balcony slab 3, making the support block 6 and the balcony slab 3 in a stable connection state. When the support block 6 rotates, it can stably drive the balcony slab 3 in an inclined state to return to the normal position. And at this time, on the one hand, the support block 6 contacts the lower surface of the balcony slab 3 through the top surface, and on the other hand, through the locking connection between the locking ring 33 and the trapezoidal block 32, the connection stability effect between the support block 6 and the balcony slab 3 can be strengthened;

[0033] The first worm gear 8 is installed on the right side surface of the first worm wheel 7. A connecting shaft 9 is installed at the lower end of the first worm gear 8. A second worm gear 10 is fixedly connected to the lower end of the connecting shaft 9. A rotating wheel 11 is installed at the lower end of the second worm gear 10. A drive shaft 12 is installed at the lower end of the rotating wheel 11. A support plate is provided at the lower end of the drive shaft 12. The support plate is installed on the outer surface of the prefabricated building wall 1. A marking pen 14 is installed on the back surface of the mounting plate 13. An arc marking 15 and a vertical and horizontal marking 16 are sequentially arranged on the front surface of the balcony slab 3 from top to bottom. The drive shaft 12 is inserted and installed inside the support plate. The drive shaft 12 can be rotated manually by a person or used with an externally connected motor. A second worm wheel 17 is meshed and connected to the right side surface of the second worm gear 10. A connecting column 18 is fixedly connected to the back surface of the second worm wheel 17. A bevel gear body 19 is installed on the back surface of the connecting column 18. A bevel gear column body 20 is meshed and connected to the outer surface of the bevel gear body 19. A limiting disc 21 is installed on the top surface of the bevel gear column body 20. A positioning plate 29 is provided on the lower surface of the limiting disc 21. A fixing plate 28 is installed on the left side of the positioning plate 29. The fixing plate 28 is fixedly installed on the right side surface of the prefabricated building wall 1. Both the bevel gear column body 20 and the bevel gear body 19 are installed inside the positioning plate 29. A lead screw body 22 is fixedly connected to the top surface of the limiting disc 21. A movable ring 23 is provided on the outer surface of the lead screw body 22. A connecting plate 24 is fixedly connected to the back surface of the movable ring 23. A fixing column 25 is fixedly connected to the top surface of the connecting plate 24. A support seat 26 is fixedly connected to the top surface of the fixing column 25. The top surface of the support seat 26 abuts against the lower surface of the support block 6. A limiting rod 27 is inserted and installed inside the connecting plate 24. The limiting rod 27 is installed on the top surface of the positioning plate 29. There are three groups of the positioning plate 29 and the fixing plate 28. The three groups of positioning plates 29 are all fixedly installed on the right side surface of the prefabricated building wall 1. First, the balcony slab 3 is lifted by a crane, and then the left end of the balcony slab 3 is installed inside the positioning pouring groove 2. At this time, when the balcony slab 3 enters the positioning pouring groove 2, it is in a horizontal state, that is, the balcony slab 3 is in a vertical state with the prefabricated building wall 1. When the left end of the balcony slab 3 completely enters the positioning pouring groove 2, the front surface of the balcony slab 3 will contact the marking pen 14 at this time. Then, when the marking pen 14 is in a vertical state with the balcony slab 3, it will mark the vertical and horizontal marking 16 on the front surface of the balcony slab 3. At this time, the vertical and horizontal marking 16 represents that the balcony slab 3 and the prefabricated building wall 1 are in a vertical and horizontal state. Then, when a person uses an external tool or connects an external motor to drive the drive shaft 12 to rotate at this time, the drive shaft 12 will drive the rotating wheel 11, the second worm gear 10, the connecting shaft 9 and the first worm gear 8 to rotate. When the first worm gear 8 rotates, the first worm gear 8 will drive the first worm wheel 7 to rotate at this time. Then, the first worm wheel 7 will rotate counterclockwise. Then, the first worm wheel 7 will drive the movable shaft 5 and the support block 6 to rotate. Thus, after the support block 6 rotates counterclockwise, the upper surface of the support block 6 will abut against the lower surface of the balcony slab 3.The position of the balcony slab 3 is reinforced and supported by the support block 6 to ensure the stable support effect of the balcony slab 3. At the same time, the second worm 10 will also drive the second worm gear 17 to rotate, and then the second worm gear 17 will drive the connecting column 18 and the bevel gear body 19 to rotate, the bevel gear body 19 is meshed with the bevel gear column body 20, and then the bevel gear column body 20 will drive the limiting plate 21 to rotate. When the limiting plate 21 rotates, the movable ring 23 on the surface of the screw body 22 will move upward. The initial position of the movable ring 23 is at the lower position of the screw body 22. Then the movable ring 23 will drive the connecting plate 24 and the fixed column 25 to move upward, and then the fixed column 25 will also The support seat 26 is driven to move upward, and then the support seat 26 will contact the lower surface of the support block 6, so that the lower surface of the support block 6 can be supported by the support seat 26 while the support block 6 rotates counterclockwise, so that the position of the balcony slab 3 can be reinforced and supported, ensuring the stability of the balcony slab 3 during subsequent pouring and installation, and preventing the balcony slab 3 from being in a tilted state at the right end under gravity. If the balcony slab 3 is in a tilted state after being installed inside the positioning pouring groove 2, the marking pen 14 will mark the arc mark 15 on the front surface of the balcony slab 3. If the arc mark 15 is in an arc state, then the balcony slab 3 and the assembled building wall 1 are in a straight line. The balcony slab 3 is in an inclined state. When the balcony slab 3 is subsequently reinforced and supported, if an arc mark 15 appears on the front surface of the balcony slab 3, after the support block 6 is supported by the rotating support block 6 and the rising support seat 26, when the marking pen 14 is at a certain point of the vertical horizontal mark 16, it is detected that the balcony slab 3 and the prefabricated building wall 1 are in a vertical horizontal state. At this time, the balcony slab 3 is reinforced and aligned by the support block 6 and the support seat 26, and then the balcony slab 3 and the prefabricated building wall 1 are cast and installed. Therefore, the present arrangement can mark the arc mark 15 and the vertical mark 16 on the front surface of the balcony slab 3 by the marking pen 14 when installing the balcony slab 3. The horizontal mark 16, the marked arc mark 15 and the vertical mark 16 can detect the horizontal state between the balcony slab 3 and the prefabricated building wall 1 after installation. Subsequently, the marked arc mark 15 and the vertical mark 16 are used to control the rotation of the support block 6 and the rise of the support seat 26 to restore the balcony slab 3 to a vertical and horizontal state with the prefabricated building wall 1, so that the balcony slab 3 and the prefabricated building wall 1 can be quickly aligned vertically, avoiding the balcony slab 3 and the prefabricated building wall 1 from being installed in an inclined state, and providing stable support reinforcement for the balcony slab 3 through the synchronous movement of the support block 6 and the support seat 26;

[0034] After the balcony slab 3 is horizontally installed inside the positioning casting groove 2, at this time, the marker pen 14 will horizontally draw a vertical horizontal mark 16 on the front surface of the balcony slab 3. If an arc mark 15 is drawn on the front surface of the balcony slab 3 after a period of time, then the balcony slab 3 is in an inclined state relative to the prefabricated building wall 1. Then, the driving shaft 12 is driven to drive the support block 6 to rotate counterclockwise and the support seat 26 to rise. The rising of the support seat 26 can assist the support block 6 to rotate counterclockwise, and the above actions can be carried out simultaneously to ensure that the support block 6 can stably support the balcony slab 3. Then, the support block 6 strengthens the balcony slab 3 until the marker pen 14 returns to a certain point position of the vertical horizontal mark 16. At this time, the balcony slab 3 and the prefabricated building wall 1 are in a vertical horizontal state, and then the balcony slab 3 returns to the horizontal state. Therefore, the casting operation can be carried out to stably cast the balcony slab 3 inside the prefabricated building wall 1. If the marker pen 14 does not mark the arc mark 15 on the front surface of the balcony slab 3, the balcony slab 3 is still strengthened and supported by the cooperation of the support block 6 and the support seat 26. At the same time, in both of the above cases, when the support block 6 rotates counterclockwise and contacts the lower surface of the balcony slab 3, the locking ring 33 and the trapezoidal block 32 can be locked and installed, thereby further improving the connection and support effect of the support block 6 on the balcony slab 3 and preventing the balcony slab 3 from being in an inclined state when installed with the prefabricated building wall 1. This setting can not only strengthen and support the balcony slab 3, but also ensure the vertical horizontal installation between the balcony slab 3 and the prefabricated building wall 1 during the strengthening and support process, playing a certain detection role.

[0035] Working principle: When in use, first lift the balcony slab 3 by a crane, and then install the left end of the balcony slab 3 into the interior of the positioning casting trough 2. At this time, the balcony slab 3 is in a horizontal state when entering the interior of the positioning casting trough 2, that is, the balcony slab 3 and the prefabricated building wall 1 are in a vertical state. When the left end of the balcony slab 3 completely enters the interior of the positioning casting trough 2, the front surface of the balcony slab 3 will contact the marking pen 14, and then the marking pen 14 and the balcony slab 3 will be in a vertical state. The vertical and horizontal mark 16 will be marked on the front surface of the balcony slab 3. At this time, the vertical and horizontal mark 16 represents that the balcony slab 3 and the prefabricated building wall 1 are in a vertical and horizontal state, and then at this time, the When the drive shaft 12 is driven to rotate by artificial external tools or connecting an external motor, the drive shaft 12 will drive the rotating wheel 11, the second worm 10, the connecting shaft 9 and the first worm 8 to rotate. When the first worm 8 rotates, the first worm 8 will drive the first worm wheel 7 to rotate, and then the first worm wheel 7 will rotate counterclockwise, and then the first worm wheel 7 will drive the movable shaft 5 and the support block 6 to rotate, so that the support block 6 will rotate counterclockwise and the upper surface of the support block 6 will contact the lower surface of the balcony plate 3. At the same time, the second worm 10 will also drive the second worm wheel 17 to rotate, and then the second worm wheel 17 will drive the connecting column 18 and the bevel gear body 19 to rotate, and the bevel gear body 19 and the bevel gear column body 19 will rotate. The bevel gear column body 20 will mesh with each other, and then the bevel gear column body 20 will drive the limit plate 21 to rotate. When the limit plate 21 rotates, the movable ring 23 on the surface of the screw rod body 22 will move upward. The initial position of the movable ring 23 is at the lower position of the screw rod body 22. Then the movable ring 23 will drive the connecting plate 24 and the fixed column 25 to move upward, and then the fixed column 25 will also drive the support seat 26 to move upward, and then the support seat 26 will contact the lower surface of the support block 6, so that the lower surface of the support block 6 can be supported by the support seat 26 while the support block 6 rotates counterclockwise. If the balcony slab 3 is installed in the interior of the positioning casting groove 2 and is in an inclined state, the mark The pen 14 will mark an arc mark 15 on the front surface of the balcony slab 3. If the arc mark 15 is in an arc state, the balcony slab 3 and the prefabricated building wall 1 are in an inclined state. When the balcony slab 3 is subsequently reinforced and supported, if an arc mark 15 appears on the front surface of the balcony slab 3, the support block 6 is supported by the rotating support block 6 and the rising support seat 26. When the marking pen 14 is at a certain point of the vertical horizontal mark 16, it is detected that the balcony slab 3 and the prefabricated building wall 1 are in a vertical horizontal state. At this time, the balcony slab 3 is reinforced and aligned by the support block 6 and the support seat 26, and then the balcony slab 3 and the prefabricated building wall 1 are cast and installed;

[0036] When the support block 6 rotates counterclockwise and contacts the lower surface of the balcony slab 3, the locking ring 33 inside the groove on the lower surface of the balcony slab 3 will be adapted to the trapezoidal block 32. Then, when the support block 6 rises, it drives the trapezoidal block 32 to rise. Then, the locking ring 33 will move downward on the surface of the trapezoidal block 32. When the locking ring 33 moves downward, the clamping plate 38 will abut against the outer surface of the trapezoidal block 32. Then, as the locking ring 33 descends, the clamping plate 38 rotates through the rotation cylinder 37 and the rotation shaft 36. Then, when the support block 6 is fitted and installed with the lower surface of the balcony slab 3, the locking ring 33 will be at the lower end of the trapezoidal block 32, and then the clamping plate 38 will be on the lower surface of the trapezoidal block 32. The upper surface of the clamping plate 38 will abut against the lower surface of the trapezoidal block 32, and the positioning block 39 can prevent the clamping plate 38 from rotating counterclockwise. When the support block 6 rotates, it can stably drive the balcony slab 3 in an inclined state to return to the normal position. At this time, on the one hand, the support block 6 contacts the lower surface of the balcony slab 3 through the top surface, and on the other hand, it is locked and connected through the locking ring 33 and the trapezoidal block 32. The above is all the working principles of the present invention.

[0037] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above description. However, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present invention by using the disclosed technical content above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications, and variations made to the above embodiments based on the essential technology of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An external balcony reinforcement fitting for prefabricated buildings, comprising a prefabricated building wall (1), wherein a positioning casting groove (2) is formed inside the prefabricated building wall (1), and a balcony slab (3) is installed inside the positioning casting groove (2), characterized in that: On the right surface of the prefabricated building wall (1), a mounting plate (13) and a fixing block (4) are successively installed from top to bottom. An activity shaft (5) is installed inside the fixing block (4). A support block (6) is installed on the outer surface of the activity shaft (5). A first worm gear (7) is fixedly connected to the front surface of the activity shaft (5). A first worm (8) is installed on the right surface of the first worm gear (7). A connecting shaft (9) is installed at the lower end of the first worm (8). A second worm (10) is fixedly connected to the lower end of the connecting shaft (9). A rotating wheel (11) is installed at the lower end of the second worm (10). A driving shaft (12) is installed at the lower end of the rotating wheel (11). The lower end of the driving shaft (12) is provided with a support plate, and the support plate is installed on the outer surface of the prefabricated building wall (1). A marking pen (14) is installed on the back surface of the mounting plate (13). An arc marking (15) and a vertical and horizontal marking (16) are successively arranged on the front surface of the balcony slab (3) from top to bottom.

2. The external balcony reinforcement fitting for prefabricated buildings according to claim 1, characterized in that: The driving shaft (12) is inserted and installed inside the support plate, and the driving shaft (12) can be used by manual rotation or an external motor.

3. The external balcony reinforcement fitting for prefabricated buildings according to claim 1, characterized in that: A second worm gear (17) is meshed and connected to the right surface of the second worm (10). A connecting column (18) is fixedly connected to the back surface of the second worm gear (17).

4. The external balcony reinforcement fitting for prefabricated buildings according to claim 3, characterized in that: A bevel gear body (19) is installed on the back surface of the connecting column (18). A bevel gear column body (20) is meshed and connected to the outer surface of the bevel gear body (19). A limiting disc (21) is installed on the top surface of the bevel gear column body (20). A positioning plate (29) is arranged on the lower surface of the limiting disc (21). A fixing plate (28) is installed on the left side of the positioning plate (29). The fixing plate (28) is fixedly installed on the right surface of the prefabricated building wall (1). Both the bevel gear column body (20) and the bevel gear body (19) are installed inside the positioning plate (29).

5. The reinforced fitting for the externally hung balcony of a prefabricated building according to claim 4, characterized in that: A lead screw body (22) is fixedly connected to the top surface of the limiting disc (21). A movable ring (23) is arranged on the outer surface of the lead screw body (22).

6. The external balcony reinforcement fitting for prefabricated buildings according to claim 5, characterized in that: A connecting plate (24) is fixedly connected to the back surface of the movable ring (23). A fixing column (25) is fixedly connected to the top surface of the connecting plate (24). A support seat (26) is fixedly connected to the top surface of the fixing column (25). The top surface of the support seat (26) abuts against the lower surface of the support block (6). A limiting rod (27) is inserted and installed inside the connecting plate (24), and the limiting rod (27) is installed on the upper surface of the positioning plate (29).

7. The external balcony reinforcement fitting for prefabricated buildings according to claim 4, characterized in that: Both the positioning plate (29) and the fixing plate (28) are provided with three groups, and the three groups of positioning plates (29) are all fixedly installed on the right surface of the prefabricated building wall (1).

8. The reinforced fitting for the external balcony of the prefabricated building according to claim 1, characterized in that: A locking groove (30) is formed on the top surface of the support block (6). A locking column (31) is installed inside the locking groove (30). A trapezoidal block (32) is fixedly connected to the top surface of the locking column (31).

9. The reinforced fitting for the externally hung balcony of a prefabricated building according to claim 1, characterized in that: A groove is formed on the lower surface of the balcony slab (3). A locking ring (33) is installed on the inner wall at the bottom end of the balcony slab (3). The locking ring (33) is adapted to the groove. The inner ring of the locking ring (33) is made of rubber material. A fixing frame (35) and a positioning block (39) are successively installed on the inner side wall of the locking ring (33) from top to bottom.

10. The reinforced fitting for the externally hung balcony of a prefabricated building according to claim 9, characterized in that: A rotating shaft (36) is installed on the left surface of the fixing frame (35). A rotating cylinder (37) is installed on the outer surface of the rotating shaft (36). A clamping plate (38) is fixedly connected to the front surface of the rotating cylinder (37). The positioning block (39) abuts against the lower surface of the clamping plate (38).

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