A portable construction cement mortar trowel

Abstract

The utility model relates to the field of building construction technology discloses a portable building construction cement mortar trowelling tool, including support rod, the rear end fixed connection of support rod has handle bar, the one end sliding installation of penetrating support rod away from handle bar has extension rod, the one end of extension rod away from support rod is installed with mounting plate through connecting rod and connecting bolt, the one end of mounting plate away from connecting rod is installed with trowelling plate through a plurality of installation screw rod, and a plurality of return springs are arranged on the outer ring of installation screw rod, through adjusting the handle, bevel gear set, adjusting threaded rod, bolt block, can extend the use length, is convenient for adjusting according to personnel demand, is convenient for improving its moving stability, is convenient for personnel to carry, and through the dust removal rod can sweep away the concrete mortar, improve the uniformity and flatness of concrete mortar on the wall, and is convenient for improving the plastering effect.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a portable cement mortar smoothing tool for building construction. Background Technology

[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. During the construction of buildings, in order to avoid uneven application of cement mortar and affect the effect of the building, it is necessary to use a smoothing tool to smooth the cement mortar.

[0003] A search revealed a Chinese patent for a cement mortar smoothing tool for building construction, publication number CN221031507U. The tool includes a fuselage and a tail wing mechanism located at the rear of the fuselage. The tail wing mechanism includes a tail wing connecting part and a pair of tail wings fixedly connected to the tail wing connecting part. The pair of tail wings are symmetrically arranged perpendicular to the center line of the tail wing connecting part.

[0004] The above-mentioned device allows the screw to be rotated forward or backward via a throttle, thereby adjusting the length. This allows the extension rod to move the trowel plate up or down to smooth the cement mortar at different heights. This achieves the length adjustment function of the device, improves its functionality, increases the smoothing range, and reduces the need for climbing ladders.

[0005] However, by lifting the handle to move the plastering board on the wall for plastering, it directly smooths out clumps of cement mortar in the direction of movement, resulting in poor leveling effect and affecting the stability of movement. Furthermore, the adjustment parts are located on the outside of the handle, affecting the grip of the user, and are directly exposed, making them prone to mortar adhesion, which affects subsequent adjustments, resulting in poor performance. Utility Model Content

[0006] The purpose of this utility model is to provide a portable cement mortar smoothing tool for building construction, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A portable cement mortar smoothing tool for building construction includes a support rod, a handle rod fixedly connected to the rear end of the support rod, an extension rod slidably installed through the end of the support rod away from the handle rod, and an installation plate installed at the end of the extension rod away from the support rod via a connecting rod and connecting bolts.

[0009] A squeegee plate is mounted on the end of the mounting plate away from the connecting rod via several mounting screws. Several return springs are arranged around the outer ring of the mounting screws, with both ends of the return springs abutting against the opposite surfaces of the mounting plate and the squeegee plate, respectively. The elastic potential energy of the return springs is used to push the squeegee plate to a suitable position. A fixing nut is threadedly connected to the outer ring of the mounting screw away from the squeegee plate, and one side of the fixing nut is in contact with the side of the mounting plate away from the squeegee plate. The fixing nut is used to limit the movement distance of the squeegee plate. Auxiliary wheels are rotatably mounted on the front and rear ends of the mounting plate near the corners.

[0010] Preferably, the auxiliary wheel is a smooth cylindrical shape and is made of stainless steel. The auxiliary wheel is used to assist the movement of the squeegee.

[0011] Preferably, a leveling push plate is fixedly welded to the bottom end of the slurry plate, and a mortar sweeping rod is fixedly connected to the bottom end of the leveling push plate. The mortar sweeping rod is used to level the mortar.

[0012] Preferably, the leveling push plate has an installation groove on the side away from the connecting rod, and a leveling roller is rotatably installed in the installation groove. The outer ring of the leveling roller is aligned with the side of the trowel plate and the leveling push plate. The leveling push plate and the leveling roller are used to compact and level the mortar.

[0013] Preferably, the support rod is composed of two semi-cylindrical rods. An adjusting threaded rod is rotatably installed inside the support rod via a connecting block. The outer ring of the extension rod is provided with a receiving groove that adapts to the connecting block. The outer ring of the adjusting threaded rod is threadedly connected to a bolt block, and one end of the extension rod that extends into the support rod is rotatably connected to the bolt block.

[0014] Preferably, an adjustment handle is rotatably installed through the top of the support rod on the side away from the extension rod, and one end of the adjustment handle extending into the support rod is engaged with the adjustment threaded rod through a bevel gear set.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model uses an adjusting handle, a bevel gear set, an adjusting threaded rod, a bolt block, and an extension rod that work together. By rotating the adjusting handle, the adjusting threaded rod is driven to rotate, which in turn pushes the extension rod out from inside the support rod to extend the working length. This allows for easy adjustment according to user needs. Furthermore, the adjusting threaded rod is installed inside the support rod, preventing direct contact with cement mortar and avoiding interference with subsequent adjustments, thus improving the overall performance.

[0017] By setting up a troweling plate, auxiliary wheels, mounting screws, and a return spring in coordination, the troweling plate can be moved by rotating the auxiliary wheels to improve its stability. The troweling plate can also be moved by rotating the auxiliary wheels in contact with the ground, making it easy for personnel to carry. The mortar sweeping rod can sweep away the concrete mortar to prevent it from piling up. Then, the leveling push plate and leveling roller can be used to roll and scrape the concrete to improve the uniformity and smoothness of the concrete mortar on the wall, thus improving the plastering effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a portable cement mortar smoothing tool for building construction in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the bevel gear set and adjusting handle in an embodiment of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the squeegee, auxiliary wheel, and leveling roller in an embodiment of the present invention.

[0021] In the diagram: 1. Support rod; 2. Handle rod; 3. Extension rod; 4. Connecting rod; 5. Mounting plate; 6. Smoothing plate; 7. Mounting screw; 8. Return spring; 9. Auxiliary wheel; 10. Leveling push plate; 11. Dust sweeping rod; 12. Leveling roller; 13. Adjusting threaded rod; 14. Bolt block; 15. Connecting block; 16. Receiving groove; 17. Bevel gear set; 18. Adjusting handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Combination Figures 1-3 A portable cement mortar smoothing tool for building construction includes a support rod 1, a handle rod 2 fixedly connected to the rear end of the support rod 1, an extension rod 3 slidably installed through the end of the support rod 1 away from the handle rod 2, and an installation plate 5 installed at the end of the extension rod 3 away from the support rod 1 via a connecting rod 4 and a connecting bolt.

[0025] See Figure 3Furthermore, a squeegee 6 is mounted on the end of the mounting plate 5 away from the connecting rod 4 via several mounting screws 7. Several return springs 8 are arranged around the outer ring of the mounting screws 7, with both ends of the return springs 8 abutting against the opposing surfaces of the mounting plate 5 and the squeegee 6. The elastic potential energy of the return springs 8 is used to push the squeegee 6 to a suitable position. A fixing nut is threadedly connected to the end of the outer ring of the mounting screws 7 away from the squeegee 6, and one side of the fixing nut is in contact with the side of the mounting plate 5 away from the squeegee 6. The fixing nut is used to limit the movement distance of the squeegee 6. The front and rear ends of the mounting plate 5 are rotated to the corners. The trowel is equipped with an auxiliary wheel 9, which is a smooth cylindrical shape and made of stainless steel. The auxiliary wheel 9 is used to assist the movement of the trowel 6. A leveling push plate 10 is fixedly welded to the bottom end of the trowel 6. A mortar sweeping rod 11 is fixedly connected to the bottom end of the leveling push plate 10. The mortar sweeping rod 11 is used to level the mortar. A mounting groove is provided on the side of the leveling push plate 10 away from the connecting rod 4. A leveling roller 12 is rotatably installed in the mounting groove. The outer ring of the leveling roller 12 is on the same vertical line as the side of the trowel 6 and the leveling push plate 10. The leveling push plate 10 and the leveling roller 12 are used to compact and level the mortar.

[0026] Specifically, the troweling plate 6 is mounted on the mounting plate 5 via the mounting screw 7 and secured by a fixing nut. A return spring 8 is installed between the troweling plate 6 and the mounting plate 5. The elastic potential energy of the return spring 8 continuously pushes the troweling plate 6 away from the mounting plate 5. Therefore, the distance between the mounting screw 7 and the mounting plate 5 can be adjusted by tightening the fixing nut at the mounting screw 7. During normal plastering, by adjusting the troweling plate 6 to be flush with the outer ring of the auxiliary wheel 9, both the troweling plate 6 and the auxiliary wheel 9 will simultaneously adhere to the wall mortar. At this time, the auxiliary wheel 9 can be rotated to assist the troweling plate. 6. Move the plastering plate in the direction of the direction of application to improve its stability. In order to reduce labor intensity, the plastering is usually done from top to bottom. Since the leveling push plate 10 is installed at the bottom of the plastering plate 6, before plastering, the mortar blots on the wall can be swept away by the sweeping rod 11 installed on the leveling push plate 10. This can initially reduce the height of the mortar layer in uneven areas. Then, by adjusting the threaded rod 13 and the leveling push plate 10, the swept mortar can be rolled and leveled to further improve the flatness of the mortar layer and reduce the impact on subsequent plastering. By coordinating multiple steps to perform leveling and plastering, the probability of rework can be reduced.

[0027] Example 2

[0028] See Figure 2Furthermore, based on Embodiment 1, the support rod 1 is composed of two semi-cylindrical rods. An adjusting threaded rod 13 is rotatably installed inside the support rod 1 via a connecting block 15. The outer ring of the extension rod 3 is provided with a receiving groove 16 that is compatible with the connecting block 15. The outer ring of the adjusting threaded rod 13 is threadedly connected to a bolt block 14, and one end of the extension rod 3 that extends into the support rod 1 is rotatably connected to the bolt block 14. An adjusting handle 18 is rotatably installed on the side of the top of the support rod 1 away from the extension rod 3. One end of the adjusting handle 18 that extends into the support rod 1 is meshed with the adjusting threaded rod 13 via a bevel gear set 17.

[0029] Specifically, during use, the extension rod 3 is slidably installed inside the support rod 1, and the extension rod 3 is threadedly connected to the adjusting threaded rod 13 via the bolt block 14 at the rear end. Simultaneously, the adjusting handle 18 is meshed with the adjusting threaded rod 13 via the bevel gear set 17, and one end of the adjusting threaded rod 13 is rotatably connected to the support rod 1 via the connecting block 15. By turning the adjusting handle 18, the adjusting threaded rod 13 can be rotated, thus pushing the bolt block 14 to move and push the extension rod 3 out of the support rod 1, thereby extending its overall working length. During adjustment, the extension rod 3 is provided with a receiving groove 16 that matches the connecting block 15, preventing the connecting block 15 from significantly interfering with the adjustment of the extension rod 3. Furthermore, the adjusting threaded rod 13 is installed inside the support rod 1 via multiple components, effectively reducing the possibility of contact with mortar and preventing mortar adhesion and solidification from significantly affecting the adjustment.

[0030] In actual operation, the troweling plate 6 is installed on the mounting plate 5 by the mounting screw 7 and restricted by the fixing nut. A return spring 8 is set between the troweling plate 6 and the mounting plate 5. Through the elastic potential energy of the return spring 8, the troweling plate 6 can be continuously pushed away from the mounting plate 5. Thus, the distance between the mounting screw 7 and the mounting plate 5 can be adjusted by tightening the fixing nut at the mounting screw 7. During normal plastering, by adjusting the troweling plate 6 to be flush with the outer ring of the auxiliary wheel 9, the troweling plate 6 and the auxiliary wheel 9 will simultaneously adhere to the wall mortar during plastering. At this time, the auxiliary wheel 9 can be rotated to assist the troweling plate 6 in moving in the plastering direction, thereby improving its movement stability.

[0031] In order to reduce labor intensity, workers usually smooth the surface from top to bottom. Since the leveling push plate 10 is installed at the bottom of the trowel plate 6, before plastering, the mortar blisters on the wall surface can be swept away by the mortar sweeping rod 11 installed on the leveling push plate 10. This can initially reduce the height of the mortar layer in uneven areas. Then, by adjusting the threaded rod 13 and the leveling push plate 10, the swept mortar can be rolled and leveled to further improve the flatness of the mortar layer and reduce the impact on subsequent plastering. By coordinating multiple steps to level and plaster, the probability of rework can be reduced.

[0032] Because the extension rod 3 is slidably installed inside the support rod 1, and the extension rod 3 is threadedly connected to the adjusting threaded rod 13 through the bolt block 14 at the rear end, and the adjusting handle 18 is meshed with the adjusting threaded rod 13 through the bevel gear set 17, and one end of the adjusting threaded rod 13 is rotatably connected to the support rod 1 through the connecting block 15, at this time, by turning the adjusting handle 18, the adjusting threaded rod 13 can be meshed and driven to rotate, so that the bolt block 14 can be moved through the thread of the adjusting threaded rod 13, so as to push the extension rod 3 out of the support rod 1, thereby extending its overall working length;

[0033] During the adjustment process, the extension rod 3 is provided with a receiving groove 16 that is compatible with the connecting block 15, which can prevent the connecting block 15 from causing significant interference to the adjustment of the extension rod 3. Furthermore, the adjusting threaded rod 13 is installed inside the support rod 1 through multiple components, which can effectively reduce the possibility of it coming into contact with the mortar and avoid the mortar adhering and solidifying, thus preventing it from having a significant impact on the adjustment.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable cement mortar smoothing tool for building construction, comprising a support rod (1), wherein a handle (2) is fixedly connected to the rear end of the support rod (1), characterized in that: An extension rod (3) is slidably installed at the end of the support rod (1) away from the handle rod (2), and an installation plate (5) is installed at the end of the extension rod (3) away from the support rod (1) via a connecting rod (4) and a connecting bolt; The mounting plate (5) is mounted with a squeegee (6) at one end away from the connecting rod (4) by a number of mounting screws (7). A number of return springs (8) are arranged around the outer ring of the mounting screws (7). The two ends of the return springs (8) abut against the opposite surfaces of the mounting plate (5) and the squeegee (6), respectively. The elastic potential energy of the return springs (8) is used to push the squeegee (6) to a suitable position. The outer ring of the mounting screws (7) is threaded with a fixing nut at one end away from the squeegee (6), and one side of the fixing nut is in contact with the side of the mounting plate (5) away from the squeegee (6). The fixing nut is used to limit the movement distance of the squeegee (6). The front and rear ends of the mounting plate (5) are rotatably mounted with auxiliary wheels (9) at the corner positions.

2. The portable cement mortar smoothing tool for building construction according to claim 1, characterized in that: The auxiliary wheel (9) is a smooth cylindrical shape and is made of stainless steel. The auxiliary wheel (9) is used to assist the smoothing plate (6) in moving.

3. The portable cement mortar smoothing tool for building construction according to claim 1, characterized in that: The bottom end of the trowel plate (6) is fixedly welded with a leveling push plate (10), and the bottom end of the leveling push plate (10) is fixedly connected with a mortar sweeping rod (11), which is used to level the mortar.

4. A portable cement mortar smoothing tool for building construction according to claim 3, characterized in that: The leveling push plate (10) has an installation groove on the side away from the connecting rod (4), and a leveling roller (12) is rotatably installed in the installation groove. The outer ring of the leveling roller (12) is on the same vertical line as the side of the trowel plate (6) and the leveling push plate (10). The leveling push plate (10) and the leveling roller (12) are used to compact and flatten the mortar.

5. A portable cement mortar smoothing tool for building construction according to claim 1, characterized in that: The support rod (1) is composed of two semi-cylindrical rods. An adjusting threaded rod (13) is rotatably installed inside the support rod (1) via a connecting block (15). The outer ring of the extension rod (3) is provided with a receiving groove (16) that is compatible with the connecting block (15). The outer ring of the adjusting threaded rod (13) is threadedly connected to a bolt block (14), and one end of the extension rod (3) that extends into the support rod (1) is rotatably connected to the bolt block (14).

6. A portable cement mortar smoothing tool for building construction according to claim 5, characterized in that: An adjustment handle (18) is rotatably installed on the side of the support rod (1) away from the extension rod (3). The end of the adjustment handle (18) that extends into the support rod (1) is connected to the adjustment threaded rod (13) through a bevel gear set (17).

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