Building external corner construction device and construction method

Abstract

The application discloses a kind of building external corner construction devices, it includes track, sliding rod, corner guard scraping flat plate, groove, handle, push plate, transmission mechanism;Track is connected with building floor, building roof respectively;Sliding rod can slide along track;Sliding rod is connected with corner guard scraping flat plate;Corner guard scraping flat plate forms the angle equal to the angle of external corner;Groove forms mortar groove, it includes bottom plate, 2 side plates, back plate, front plate, is provided with opening in front plate;Corner guard scraping flat plate is arranged at opening, is connected with bottom plate;The height of corner guard scraping flat plate is lower than the height of front plate;Handle is installed on groove;Push plate is placed in mortar groove;Transmission mechanism is installed on groove, it is connected with push plate;Transmission mechanism drives push plate to move, so that mortar in mortar groove flows into the external corner formed by corner guard scraping flat plate from opening.The application further discloses a kind of building external corner construction method.The application can improve the efficiency of external corner construction, and can guarantee construction quality.

Description

Technical Field

[0001] This invention belongs to the field of building construction, specifically relating to a building corner construction device and construction method. Background Technology

[0002] In building wall plastering, it is necessary to pre-apply a higher grade of cement mortar than the wall plaster mortar to the external corners of the interior walls. This is because external corners are relatively fragile and easily damaged by bumps and knocks. According to the requirements of the decoration and renovation acceptance specifications, the corner protector should be no less than 50mm on both sides. In actual construction, workers check whether the external corner coincides with the wall to be plastered by pressing one end of a straightedge onto a pre-reserved plaster spot on the wall and rotating it up and down around the center point of the plaster spot, constantly correcting the verticality of the external corner. This construction method is time-consuming and inefficient. Moreover, workers are sometimes careless in their work, failing to guarantee the verticality of the external corner and the uniformity of both sides, thus causing certain difficulties in plastering the entire wall surface. Summary of the Invention

[0003] The main objective of this invention is to provide a construction device and method for constructing external corners of buildings. This device and method can improve the efficiency of external corner construction and ensure construction quality.

[0004] The technical solution adopted in this invention is: A construction device for external corners of buildings includes a track, a sliding rod, a corner protector scraper, a trough, a handle, a push plate, and a transmission mechanism. The track is close to the wall mortar, with its lower end fixed to the floor of the building and its upper end close to the roof of the building. One end of the slide rod is placed inside the track and can slide along the track; the other end of the slide rod is connected to the corner protector scraper plate. The corner protector scraper plate includes a first scraper plate and a second scraper plate, the first scraper plate and the second scraper plate are connected, and the connection angle is equal to the angle of the external corner; The trough includes a bottom plate, two side plates, a rear plate, and a front plate; the bottom plate forms a mortar trough with the two side plates, the rear plate, and the front plate, and the front plate has an opening; a corner protector scraper is installed at the opening and connected to the bottom plate; the height of the corner protector scraper is lower than the height of the front plate; The handles are installed on the two side plates of the tank to facilitate construction work; The push plate is placed inside the mortar trough; The transmission mechanism is installed on the trough and is connected to the push plate. The transmission mechanism drives the push plate to move, so that the mortar in the mortar trough flows from the opening into the external corner formed by the corner scraper plate.

[0005] Preferably, the front plate includes a first inclined plate and a second inclined plate, with an opening between the first and second inclined plates; one end of the first inclined plate is connected to one of the side plates, and the lower end of the first inclined plate is connected to the bottom plate; one end of the second inclined plate is connected to the other side plate, and the lower end of the second inclined plate is connected to the bottom plate; this facilitates construction and improves construction quality and efficiency.

[0006] Preferably, the groove further includes a rubber sheet and a spring; There are two rubber sheets, corresponding to the first inclined plate and the second inclined plate respectively; the rubber sheets are provided with waist-shaped holes; the first inclined plate and the second inclined plate are respectively provided with 7-shaped limiting plates; one end of the rubber sheet extends into the groove formed by the 7-shaped limiting plate and the front plate, and the bolt passes through the waist-shaped hole on the horizontal plate of the 7-shaped limiting plate, the waist-shaped hole on the rubber sheet, and the waist-shaped hole on the front plate in sequence; the other end of the rubber sheet is located between the front plate and the corner protector scraper plate; There are two springs, each corresponding to a rubber sheet; one end of the spring contacts the rubber sheet, and the other end is fixed to the vertical plate of the L7-shaped limiting plate. By setting the springs and rubber sheets, the rubber sheet at the front end of the groove can freely expand and contract according to the unevenness of the wall at the external corner, reducing the resistance when the groove moves up and down.

[0007] Preferably, the transmission mechanism includes a hollow shaft, bearings, a first gear, a screw, a nut, a motor, or an electric angle grinder; The lower end of the hollow shaft extends into the rear plate of the groove; The inner ring of the bearing is fixed to the upper end of the hollow shaft, and the outer ring of the bearing is fitted with a first gear. The first gear is connected to the nut; The lower end of the screw passes through a nut and a hollow shaft in sequence and then connects to a push plate in the mortar trough. The motor or electric angle grinder is mounted on the tank, and a second gear that meshes with the first gear is provided on it; The operation of the motor or electric angle grinder (rotation of the motor or electric angle grinder in both directions) drives the second gear to move, which in turn drives the first gear to move, which in turn drives the screw to move back and forth, causing the push plate to move back and forth in the mortar tank; The transmission mechanism is simple and reliable; the components used—hollow shaft, bearing, gear, screw, nut, motor or electric angle grinder—are all commonly used construction parts, which are easy to manufacture and reduce construction costs.

[0008] Preferably, the motor or electric angle grinder is mounted on the rear plate of the tank via a bracket to make the structure more stable.

[0009] Preferably, the slide rod is a telescopic slide rod, which facilitates the adjustment of the distance between the groove and the wall, thereby ensuring the construction quality of the external corner.

[0010] Preferably, the slide bar includes a first slide bar, a second slide bar, and a third slide bar, with the second slide bar being slightly longer than the first and third slide bars; each of the first, second, and third slide bars has multiple matching bolt holes; both ends of the second slide bar are connected to the first and third slide bars respectively via bolts and nuts; the length of the slide bar can be changed by adjusting the position of the bolts and nuts. The first section of the slide bar is connected to the corner scraper plate, and the lower end of the third section of the slide bar is equipped with a pulley, so that the slide bar can slide without friction in the track; The structure is simple and the length is easy to adjust.

[0011] Preferably, the track is a groove-shaped structure, and its lower end is connected to the building floor by ball head bolts; this facilitates the installation of the sliding rod and improves construction efficiency.

[0012] Preferably, the inner corner angle of the corner protector scraper plate is 50-70°, and the first scraper plate and the second scraper plate are perpendicular to the horizontal plane to ensure construction quality.

[0013] The present invention also provides a method for constructing external corners of buildings, the method employing the aforementioned external corner construction device; the method includes the following steps: 1) Place one side of the track against the completed wall plaster patch, and rotate the ball head bolt to secure the track firmly between the building's roof and floor. 2) Insert one end of the slide rod into the track through the notch in the track. Place the groove with the corner guard scraper, handle, push plate, and transmission mechanism installed on it on the ground and align it with the external corner of the wall. Adjust the distance between the groove and the track using the slide rod. Pour mortar into the mortar groove and make sure the mortar completely fills the external corner area formed by the corner guard scraper. 3) Hold the trough with one hand and support the motor or electric angle grinder with the other hand, applying pressure to the outside corner; lift the trough upwards, and use the motor or electric angle grinder to compact the mortar in the trough towards the outside corner. Use the corner scraper at the bottom of the mortar trough to perform secondary processing on the compaction and vertical progress of the outside corner. 4) After the mortar in the mortar tank is used up, reverse the motor or electric angle grinder to return the push plate to its original position; pour in mortar and repeat the above actions to complete the one-time molding of the mortar corner.

[0014] By placing the mortar at the inner wall corner into the mortar trough, the pusher plate is driven by a motor or electric angle grinder to push the mortar to fill the corner. The mortar trough is manually moved along the wall corner, and the corner protector scraper plate makes the corner denser, achieving uniform one-time forming on both sides of the corner, which facilitates the secondary treatment of the corner in the later wall plastering.

[0015] The beneficial effects of this invention are: The track is placed close to the wall mortar, with its two ends connected to the building floor and the building roof respectively. This guides the trough to run in the slide, ensuring that the external corner line is parallel to the wall and perpendicular to the ground, and is suitable for any direction of the external corner. The mortar stored in the mortar tank is filled and the external corner is smoothed in one go by the transmission mechanism and the push plate. This reduces the number of times the workers need to take out mortar and correct the external corner, and improves the construction efficiency and construction quality. Installing a spring and rubber sheet at the front end of the mortar trough can prevent the corner protector scraper from getting stuck on a wall with quality defects or the external corner from deforming in the opposite direction of the defect. It can be reused, reducing construction costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of a construction device for building external corners (without tracks or sliding rods). Figure 2 This is a 3D structural diagram of a construction device for building corners (without tracks or sliding rods). Figure 3 It is a 3D schematic diagram of the track; Figure 4 It is a 3D schematic diagram of the slide bar; Figure 5 This is a schematic diagram of the transmission mechanism (without the electric angle grinder and the second gear). Figure 6 This is a schematic diagram of the track installation; Figure 7 This is a schematic diagram showing the connection between the rubber sheet and the spring; In the diagram: 1. Track, 2. Electric angle grinder, 3. Support, 4. Handle, 5. Tank, 5.1. Base plate, 5.2. Side plate, 5.3. Rear plate, 5.4. Front plate, 5.4.1. First inclined plate, 5.4.2. Second inclined plate, 5.5. Opening, 6. Rubber sheet, 7. Corner protector scraper plate, 7.1. First scraper plate, 7.2. Second scraper plate, 8. Spring, 9. Bolt, 10. Screw, 11. Nut, 12. First gear, 13. Bearing, 14. Hollow shaft, 15. Push plate, 16. Bolt and nut, 17. Pulley, 18. Ball head bolt, 19. Slide rod, 19.1. First slide rod section, 19.2. Second slide rod section, 19.3. Third slide rod section. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] Example 1 See Figures 1-7 A construction device for external corners of buildings, comprising a track 1, a sliding rod 19, a corner protector scraper 7, a trough 5, a handle 4, a push plate 15, and a transmission mechanism.

[0020] Track 1 is a trough-shaped structure that is close to the wall plastering. Its lower end is fixed to the floor of the building by ball head bolts 18, and its upper end is close to the roof of the building.

[0021] One end of the slide rod 19 is placed inside the track and can slide along the track 1; the other end of the slide rod 19 is connected to the corner scraper plate 7. In this embodiment, in order to facilitate the adjustment of the distance between the groove and the wall and ensure the construction quality of the external corner, a telescopic slide rod can be used. The telescopic slide rod includes a first slide rod 19.1, a second slide rod 19.2, and a third slide rod 19.3. The length of the second slide rod 19.2 is slightly longer than that of the first slide rod 19.1 and the third slide rod 19.3. The first slide rod 19.1, the second slide rod 19.2, and the third slide rod 19.3 are all provided with multiple matching bolt holes. The two ends of the second slide rod 19.2 are connected to the first slide rod 19.1 and the third slide rod 19.3 respectively by bolts and nuts 16. By adjusting the position of the bolts and nuts 16, the length of the slide rod 19 can be changed. The first section of the slide rod 19.1 is connected to the corner scraper plate 7, and the lower end of the third section of the slide rod 19.3 is provided with a pulley 17, so that the slide rod 19 slides without friction within the track 1.

[0022] The corner protector scraper plate 7 includes a first scraper plate 7.1 and a second scraper plate 7.2. The first scraper plate 7.1 and the second scraper plate 7.2 are connected, and the connection angle is equal to the angle of the external corner. The corner protector scraper plate 7 is connected to the base plate 5.1. To ensure construction quality, the angle of the inner internal corner of the corner protector scraper plate 7 is approximately 60°, and the first scraper plate 7.1 and the second scraper plate 7.2 are perpendicular to the horizontal plane.

[0023] The trough 5 includes a bottom plate 5.1, two side plates 5.2, a rear plate 5.3, and a front plate 5.4. The bottom plate 5.1 forms a mortar trough with the two side plates 5.2, the rear plate 5.3, and the front plate 5.4. The front plate 5.4 includes a first inclined plate 5.4.1 and a second inclined plate 5.4.2, with an opening 5.5 between them. One end of the first inclined plate 5.4.1 is connected to one of the side plates 5.2, and the lower end of the first inclined plate 5.4.1 is connected to the bottom plate 5.1; one end of the second inclined plate 5.4.2 is connected to the other side plate 5.2, and the lower end of the second inclined plate 5.4.2 is connected to the bottom plate 5.1. The height of the first scraper plate 7.1 and the second scraper plate 7.2 is lower than the height of the front plate 5.4, so that the mortar in the mortar trough can flow into the area of ​​the external corner formed by the first scraper plate 7.1 and the second scraper plate 7.2.

[0024] Handles 5 are installed on the two side plates 5.2 of the trough body 5 to facilitate construction work. Push plates 15 are placed in the mortar trough to push the mortar in the mortar trough towards the external corner area formed by the first scraper plate 7.1 and the second scraper plate 7.2.

[0025] The transmission mechanism is mounted on the rear plate 5.3 of the trough 5, and includes a hollow shaft 14, a bearing 13, a first gear 12, a screw 10, a nut 11, and an electric angle grinder 2. The lower end of the hollow shaft 14 extends into the rear plate 5.3 of the trough 5. The inner ring of the bearing 13 is fixed to the upper end of the hollow shaft 14, and the outer ring of the bearing 13 is fitted with the first gear 12; the first gear 12 is connected to the nut 11. The lower end of the screw 10 passes through the nut 11 and the hollow shaft 14 in sequence and is connected to the push plate 15 in the mortar trough. The electric angle grinder 2 is mounted on the rear plate 5.3 of the trough 5 via a bracket 3, and has a second gear that meshes with the first gear 12. The electric angle grinder 2 rotates in both directions, driving the second gear to move, which in turn drives the first gear 12 to move, which in turn drives the screw 10 to move back and forth, causing the push plate 15 to move back and forth in the mortar tank; when the push plate 15 moves forward in the mortar tank, the mortar in the mortar tank flows from the opening 5.5 into the external corner formed by the corner scraper plate 7.

[0026] To allow the groove 5 to freely expand and contract according to the unevenness of the wall at the external corner, reducing the resistance during the vertical movement of the groove 5, the groove also includes rubber sheets 6 and springs 8. There are two rubber sheets 6, corresponding to the first inclined plate 5.4.1 and the second inclined plate 5.4.2 respectively. The rubber sheet 6 has a waist-shaped hole; the first and second inclined plates each have a 7-shaped limiting plate; one end of the rubber sheet 6 extends into the groove formed by the 7-shaped limiting plate and the front plate 5.4, and the bolt 9 passes sequentially through the waist-shaped hole on the horizontal plate of the 7-shaped limiting plate, the waist-shaped hole on the rubber sheet 6, and the waist-shaped hole on the front plate 5.4; the other end of the rubber sheet 6 is located between the front plate 5.4 and the corner protector scraper plate 7. There are two springs 8, corresponding one-to-one with the rubber sheets 6; one end of the spring 8 contacts the rubber sheet 7, and the other end of the spring 8 is fixed to the vertical plate of the 7-shaped limiting plate.

[0027] Example 2 A method for constructing external corners of buildings using the aforementioned construction device, the method comprising the following steps: 1) Place one side of track 1 against the completed wall plaster patch, and rotate ball head bolt 18 to firmly fix track 1 between the roof and floor of the building; 2) Insert one end of the slide rod 19 into the slide of the track 1 through the notch of the track 1. Place the groove 5, which is equipped with the corner guard scraper 7, handle 4, push plate 15 and transmission mechanism, on the ground and align it with the external corner of the wall. Adjust the distance between the groove 5 and the track 1 using the slide rod 19. Pour mortar into the mortar groove and make sure that the mortar completely fills the external corner area formed by the corner guard scraper 7. 3) Hold the trough 5 with one hand and support the electric angle grinder 2 with the other hand, applying a certain pressure in the direction of the external corner; lift the trough 5 upwards, and during the lifting process, use the electric angle grinder 2 to compact the mortar in the mortar trough towards the external corner, and use the corner scraper 7 at the lower end of the mortar trough to perform secondary treatment on the compaction degree and vertical progress of the external corner. 4) After the mortar in the mortar tank is used up, reverse the direction of the electric angle grinder 2 to make the push plate 15 return to its original position; pour in mortar, repeat the above actions, and complete the one-time molding of the mortar external corner; 5) After use, remove all parts for future use.

[0028] The rubber plate at the front end of the mortar trough can freely expand and contract according to the unevenness of the wall at the external corner, reducing the resistance when the mortar trough moves up and down.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A construction device for external corners of buildings, characterized in that: Includes rails, slide bars, corner protectors, scraper plates, troughs, handles, push plates, and transmission mechanisms; The track is close to the wall mortar, with its lower end fixed to the floor of the building and its upper end close to the roof of the building. One end of the slide rod is placed inside the track and can slide along the track; the other end of the slide rod is connected to the corner protector scraper plate. The corner protector scraper plate includes a first scraper plate and a second scraper plate, the first scraper plate and the second scraper plate are connected, and the connection angle is equal to the angle of the external corner; The trough includes a bottom plate, two side plates, a rear plate, a front plate, a rubber sheet, and a spring; the bottom plate forms a mortar trough with the two side plates, the rear plate, and the front plate, and the front plate has an opening; a corner protector scraper is installed at the opening and connected to the bottom plate; the height of the corner protector scraper is lower than the height of the front plate; The front plate includes a first inclined plate and a second inclined plate, with an opening between the first and second inclined plates; one end of the first inclined plate is connected to one of the side plates, and the lower end of the first inclined plate is connected to the bottom plate; one end of the second inclined plate is connected to the other side plate, and the lower end of the second inclined plate is connected to the bottom plate. There are two rubber sheets, corresponding to the first inclined plate and the second inclined plate respectively; the rubber sheets are provided with waist-shaped holes; the first inclined plate and the second inclined plate are respectively provided with 7-shaped limiting plates; one end of the rubber sheet extends into the groove formed by the 7-shaped limiting plate and the front plate, and the bolt passes through the waist-shaped hole on the horizontal plate of the 7-shaped limiting plate, the waist-shaped hole on the rubber sheet, and the waist-shaped hole on the front plate in sequence; the other end of the rubber sheet is located between the front plate and the corner protector scraper plate; There are two springs, each corresponding to a rubber sheet; one end of the spring contacts the rubber sheet, and the other end of the spring is fixed to the vertical plate of the 7-shaped limiting plate. The handles are installed on the two side plates of the trough; The push plate is placed inside the mortar trough; The transmission mechanism is installed on the trough and is connected to the push plate. The transmission mechanism drives the push plate to move, so that the mortar in the mortar trough flows from the opening into the external corner formed by the corner scraper plate.

2. The construction device for external corners of buildings according to claim 1, characterized in that: The transmission mechanism includes a hollow shaft, bearings, a first gear, a screw, a nut, a motor, or an electric angle grinder; The lower end of the hollow shaft extends into the rear plate of the groove; The inner ring of the bearing is fixed to the upper end of the hollow shaft, and the outer ring of the bearing is fitted with a first gear. The first gear is connected to the nut; The lower end of the screw passes through a nut and a hollow shaft in sequence and then connects to a push plate in the mortar trough. The motor or electric angle grinder is mounted on the tank, and a second gear that meshes with the first gear is provided on it; When the motor or electric angle grinder is working, it drives the second gear to move, which in turn drives the first gear to move, which in turn drives the screw to move back and forth, causing the push plate to move back and forth in the mortar tank.

3. The construction device for external corners of buildings according to claim 2, characterized in that: The motor or electric angle grinder is mounted on the rear plate of the tank via a bracket.

4. The construction device for external corners of buildings according to claim 1, characterized in that: The slide bar is a telescopic slide bar.

5. The construction device for external corners of buildings according to claim 4, characterized in that: The slide bar includes a first slide bar, a second slide bar, and a third slide bar, and each of the first slide bar, the second slide bar, and the third slide bar is provided with multiple matching bolt holes; the two ends of the second slide bar are connected to the first slide bar and the third slide bar respectively by bolts and nuts; the length of the slide bar can be changed by adjusting the position of the bolts and nuts; The first section of the slide bar is connected to the corner scraper plate, and the lower end of the third section of the slide bar is equipped with a pulley, which allows the slide bar to slide within the track.

6. The construction device for external corners of buildings according to claim 1, characterized in that: The track has a trough-shaped structure, and its lower end is connected to the building floor by ball head bolts.

7. The construction device for external corners of buildings according to claim 1, characterized in that: The inner corner of the corner protector scraper plate has an angle of 50-70°, and the first scraper plate and the second scraper plate are perpendicular to the horizontal plane.

8. A construction method for external corners of buildings, characterized in that: The method employs the building corner construction device described in any one of claims 1-7; the method includes the following steps: 1) Place one side of the track against the completed wall plaster patch, and rotate the ball head bolt to secure the track firmly between the building's roof and floor. 2) Insert one end of the slide rod into the track through the notch in the track. Place the groove with the corner guard scraper, handle, push plate, and transmission mechanism installed on it on the ground and align it with the external corner of the wall. Adjust the distance between the groove and the track using the slide rod. Pour mortar into the mortar groove and make sure the mortar completely fills the external corner area formed by the corner guard scraper. 3) Hold the trough with one hand and support the motor or electric angle grinder with the other hand, applying pressure to the outside corner; lift the trough upwards, and use the motor or electric angle grinder to compact the mortar in the trough towards the outside corner. Use the corner scraper at the bottom of the mortar trough to perform secondary processing on the compaction and vertical progress of the outside corner. 4) After the mortar in the mortar tank is used up, reverse the motor or electric angle grinder to return the push plate to its original position; pour in mortar and repeat the above actions to complete the one-time molding of the mortar corner.

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