Improved ash scraping tool for wall and cylindrical surface male right-angle construction

Abstract

The utility model discloses an improved ash scraping tool for wall and cylindrical surface positive right angle construction, which comprises an adjusting handle, a pressing part of which can adjust the size of an opening of a clamping part; the left side plate is adjustably connected with the lower part of the left clamping piece of the adjusting handle through a left connecting assembly; the right side plate is adjustably connected with the lower part of the right clamping piece of the adjusting handle through a right connecting assembly; the adjusting handle is used for adjusting opening and closing of the left side plate and the right side plate. The dust scraping device is reasonable in design and convenient to operate and store, simplifies the operation process of dust scraping work, not only can improve the construction efficiency, but also can reduce the working intensity, ensures the consistency of angles during dust scraping work, simultaneously realizes convenient storage, avoids the time waste of tool arrangement, not only can improve the construction efficiency, but also can reduce the construction cost. And the working environment can be optimized, protection and safety of tools are guaranteed, and the requirements of modern construction management are met.

Description

Technical Field

[0001] This utility model relates to a plastering tool, specifically an improved plastering tool for right-angle construction on wall and column surfaces. This plastering tool is mainly used for plastering and puttying on right-angle walls and columns in building engineering, and belongs to the technical field of building construction supplies. Background Technology

[0002] As is well known, at the outer corner (outer corner) of a wall, unevenness is easily generated due to the intersection of two walls, and unevenness or bumps are likely to occur during plastering.

[0003] The purpose of constructing external corners is to enhance the stability of the building structure, improve its aesthetics, extend the service life of the wall, improve its waterproof performance, facilitate cleaning and maintenance, and ensure that the construction quality meets the standards.

[0004] Currently, right angles are very difficult to handle during plastering and puttying in buildings. They often require repeated patching with a metal plate or scraper, and the final result is often not a perfectly right angle or a straight corner. Traditional methods for creating right angles on walls and columns involve using a trowel to press and shape the surface. This method has several drawbacks: the mortar is not completely compacted, the depth varies, the corner is not perfectly right, and the corner lines are not straight, affecting the overall aesthetic appeal. Furthermore, in these traditional methods, the junction between the wall and the corner may be uneven due to inaccurate application or tools not being suitable for different wall shapes, affecting the appearance. Cracks and peeling may also appear at the corner, impacting the final finish.

[0005] Using traditional tools typically requires precise manual measurement, marking, and trimming. Corners often need constant adjustment, leading to overuse of materials and increased costs. It also easily results in excessive labor intensity for workers, and maintaining the same posture for extended periods can cause fatigue. This not only increases the workers' workload but may also affect the quality of construction.

[0006] While specialized tools for plastering external corners are available on the market, traditional external right-angle plastering tools with existing structures are often fixed in place. This not only lacks storage functionality, taking up space and making storage and carrying inconvenient, but also makes them prone to loss or damage. Without storage, external right-angle plastering tools are often poorly protected from external damage, easily becoming scattered or lost on the work site, increasing maintenance and replenishment costs. Furthermore, the lack of storage means tools cannot be compactly stored, potentially occupying more storage space. This is inconvenient for construction sites or small tool sheds, especially in space-constrained environments, affecting the cleanliness and orderliness of the work environment.

[0007] Therefore, the key to solving the above-mentioned technical problems lies in developing an easy-to-store and easy-to-use scraping tool for right-angle construction on wall and column surfaces. Summary of the Invention

[0008] In view of the many defects and shortcomings existing in the above-mentioned background technology, this utility model has made improvements and innovations, aiming to provide a reasonable and convenient-to-operate plastering tool for right-angle construction on wall and column surfaces. It can simplify the operation process of plastering, improve work efficiency, reduce work intensity, ensure the consistency of angle during plastering, and also make it easy to store, avoiding the waste of time in organizing tools. It can not only improve construction efficiency, but also optimize the working environment, ensure the protection and safety of tools, and meet the needs of modern construction management.

[0009] To solve the above problems and achieve the above-mentioned invention objectives, this utility model provides an improved plastering tool for right-angle construction on wall and column surfaces, achieved through the following design structure and technical solution:

[0010] As an improvement to the plastering tool for right-angle construction on wall and column surfaces according to this utility model, it includes:

[0011] Adjust the handle (1), the pressing part of which can adjust the opening size of the clamping part;

[0012] The left side plate (2) is adjustablely connected to the lower part of the left clamp (11) of the adjusting handle (1) via the left connecting assembly (3);

[0013] The right side plate (4) is adjustablely connected to the lower part of the right clamp (12) of the adjusting handle (1) via the right connecting assembly (5);

[0014] The adjustment handle (1) is used to adjust the opening and closing of the left side panel (2) and the right side panel (4).

[0015] As an improvement of the present invention, the adjusting handle (1) includes:

[0016] The left clamping part (11) has a "Z" shaped structure. A left snap-fit ​​groove (111) is opened horizontally on the top of the left clamping part (11). The two ends of the left snap-fit ​​groove (111) are coaxially connected with connecting shaft connecting holes.

[0017] The right clamp (12) has a “Z” shaped structure. A right snap-fit ​​groove is opened horizontally on the top of the right clamp (12). The two ends of the right snap-fit ​​groove are coaxially connected and have connecting shaft mounting holes.

[0018] Clamping component connection assembly (13);

[0019] The right clamp (12) is sleeved on the connecting hole of the connecting shaft of the left clamp (11) and connected as a whole through the clamp connecting assembly (13).

[0020] As a further improvement of the present invention, the clamping member connecting assembly (13) includes:

[0021] The clamping member connecting shaft (131) passes through the connecting shaft mounting hole and the connecting shaft connecting hole, and rotatably connects the right clamping member (12) to the left clamping member (11);

[0022] The clamping member torsion spring (132) is sleeved on the outside of the middle section of the clamping member connecting shaft (131). One end of the clamping member torsion spring (132) is in contact with the inner wall of the left clamping member (11), and the other end is in contact with the inner wall of the right clamping member (12).

[0023] As a further improvement of the present invention, the lower center of the left clamping member (11) is also provided with a left mounting groove for installing the left connecting component (3), and the two ends of the left mounting groove are coaxially connected with left connecting shaft mounting holes.

[0024] The lower center of the right clamp (12) is also provided with a right mounting groove for installing the right connecting component (5), and the two ends of the right mounting groove are coaxially connected with right connecting shaft mounting holes.

[0025] As a further improvement of the present invention, the left connecting component (3) includes:

[0026] Left connecting seat (31) is connected to the upper outer side of the left side plate (2);

[0027] The left connecting shaft (32) passes through the left connecting seat (31) and the left connecting shaft mounting hole, and rotatably connects the left side plate (2) to the lower part of the left clamp (11);

[0028] Left torsion spring (33) is sleeved on the left connecting shaft (32) and located in the left mounting groove. One end of the elastic arm of the left torsion spring (33) is in contact with the outer wall of the left side plate (2), and the other end of the elastic arm is in contact with the left clamping member (11).

[0029] The left connecting seat (31) consists of triangular mounting blocks arranged opposite each other at both ends above the left side plate (2).

[0030] As a further improvement of the present invention, the right connecting component (5) includes:

[0031] The right connecting seat (51) is connected to the upper outer side of the right side plate (4);

[0032] The right connecting shaft (52) passes through the right connecting seat (51) and the right connecting shaft mounting hole, and rotatably connects the right side plate (4) to the lower part of the right clamping member (12);

[0033] The right torsion spring (53) is sleeved on the right connecting shaft (52) and located in the right mounting groove. One end of the right torsion spring (53) is in contact with the outer wall of the right side plate (4), and the other end is in contact with the right clamping member (11).

[0034] The right connector (51) consists of triangular mounting blocks arranged opposite each other at both ends above the right side plate (4).

[0035] As a further improvement of the present invention, the right torsion spring (53) has the same shape and structure as the clamping torsion spring (132) and the left torsion spring (33). The right torsion spring (53) includes a helical spring in the middle and elastic arms connected to both ends of the helical spring. The elastic arms are in an "L" shape, and the helical spring is arranged parallel to the long side of the elastic arms at both ends.

[0036] As a further improvement of the present invention, the left side plate (2) and the right side plate (4) are both right-angled trapezoidal plate-shaped components, wherein the upper ends of the left side plate (2) and the right side plate (4) located inside the adjustment handle (1) are provided with chamfers.

[0037] As a further improvement of the present invention, the pressing parts of the left clamping member (11) and the right clamping member (12) are also fitted with protective sleeves (14), the cross-section of the protective sleeves (14) is "C" shaped, and multiple through holes are provided on the protective sleeves (14).

[0038] As a further improvement to the present invention, the outer surfaces of the left side plate (2) and the right side plate (4) are respectively provided with an injection molding layer, an anti-rust layer, a waterproof layer and an anti-stick coating from the inside to the outside.

[0039] The working principle is: during construction, the construction personnel first clean up the garbage or dirt at the right angle (6) of the wall column and wet it with water; at the same time, fill the right angle (6) of the wall column with mortar or fine stone concrete that needs to be smoothed in advance, that is, place the mortar or fine stone concrete at the right angle (6) of the wall column.

[0040] Immediately afterward, before the mortar or fine stone concrete has initially set, the operator holds the adjustment handle (1) and moves the ends of the left side plate (2) and the right side plate (4) toward the right angle (6) of the wall column surface. Then, the operator pinches the pressing part of the adjustment handle (1) so that the protective sleeves (14) of the left clamp (11) and the right clamp (12) come closer together and are pressed together. At the same time, the left clamp (11) drives the left side plate (2) to move through the left connecting component (3), and the right clamp (12) drives the right side plate (4) through the right connecting component (5), so that the left side plate (2) and the right side plate (4) open to contact the right angle (6) of the wall column surface.

[0041] Then, the operator pinches the pressing part of the adjustment handle (1) and gradually moves the openings of the left side plate (2) and the right side plate (4) closer to the right angle (6) of the wall column. At this time, under the operator's pushing force, the left side plate (2) overcomes the elasticity of the left torsion spring (33) and the inner wall of the left side plate (2) gradually rotates and becomes completely flush with one end of the right angle (6) of the wall column. At the same time, under the operator's pushing force, the right side plate (4) also overcomes the elasticity of the right torsion spring (53) and the inner wall of the right side plate (4) gradually rotates and becomes completely flush with the other end of the right angle (6) of the wall column. Thus, the left side plate (2) and the right side plate (4) form a 90-degree angle that matches the right angle (6) of the wall column.

[0042] Finally, make the included angle of the left side plate (2) and the right side plate (4) fully contact the right angle (6) of the wall column surface. Under the elastic action of the left torsion spring (33) and the right torsion spring (53), make the left side plate (2) and the right side plate (4) fully contact the mortar or fine stone concrete on both ends of the right angle (6) of the wall column surface, so that the left side plate (2) and the right side plate (4) are aligned with the mortar or fine stone concrete at the right angle (6) of the wall column surface. Then, while holding the adjustment handle (1), pull the adjustment handle (1) with a little force in one direction to scrape the mortar or fine stone concrete at the right angle (6) of the wall column surface into a smooth mortar joint with rounded mortar and tight mortar. After the construction of the right angle (6) of the wall column surface is completed, inspect and accept it. After it is qualified, proceed to the next process. Continue to construct the next right angle (6) of the wall column surface according to the above construction method.

[0043] Finally, as time goes by, once all the construction work is completed, the construction workers only need to clean and repair the utility model, and then transport it to the designated tool storage warehouse for storage using appropriate handling equipment or manually, so that it can be reused next time.

[0044] The beneficial effects of this utility model compared with the prior art are:

[0045] 1. This utility model is reasonably designed and easy to operate, which can simplify the operation process of scraping, improve work efficiency, reduce work intensity, and ensure the consistency of the angle during scraping.

[0046] 2. The convenient storage design of this utility model allows the tool to occupy less space when not in use, making it particularly suitable for use in small construction sites or places with limited tool storage space;

[0047] 3. This utility model can be conveniently stored and retrieved, avoiding the waste of time searching for or organizing tools, allowing construction workers to focus on their work and improving work efficiency; at the same time, it can also maintain the cleanliness of the work environment, preventing tools from being scattered on the construction site and affecting the construction progress and the cleanliness of the work environment.

[0048] 4. This utility model can quickly adjust the opening size of the two side plates by adjusting the handle, making the plastering operation more efficient and precise, thereby improving construction efficiency;

[0049] 5. This utility model has an adjustment function. The tool can adjust the opening and closing degree of the left and right side plates by adjusting the handle. At the same time, by adjusting the contact angle between the left and right side plates and the right angle of the wall and column surface, the tool can achieve adaptive contact of the right angle of the wall and column, so as to complete the plastering task at the right angle of the wall and column surface more efficiently.

[0050] 6. The pressing parts of the left and right clamping parts of this utility model are also fitted with protective sleeves, which can protect the operator's hands from wear and tear due to prolonged work and ensure construction safety.

[0051] 7. The left and right side plates of this utility model are coated with anti-rust paint and waterproof layer, which can prevent rusting and extend the service life of the entire device. It is environmentally friendly and saves resources. At the same time, it is also coated with anti-stick coating, which can significantly improve the smoothness of slagging and reduce the adhesion of residual mortar, making it easier to clean. Attached Figure Description

[0052] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0053] Figure 1 This is one of the usage state diagrams of this utility model;

[0054] Figure 2 This is the second diagram showing the usage state of this utility model;

[0055] Figure 3 This is the third diagram showing the usage state of this utility model;

[0056] Figure 4 This is the fourth diagram showing the usage state of this utility model;

[0057] Figure 5 This is the fifth diagram showing the usage state of this utility model;

[0058] Figure 6 This is the sixth diagram showing the usage state of this utility model;

[0059] Figure 7 This is one of the overall structural schematic diagrams of this utility model;

[0060] Figure 8 This is the second schematic diagram of the overall structure of this utility model;

[0061] Figure 9 This is a side view of the present invention;

[0062] Figure 10 This is an exploded view of this utility model;

[0063] In the figure, the numbers are: 1—adjusting handle, 11—left clamping part, 111—left snap-fit ​​groove, 12—right clamping part, 13—clamping part connecting assembly, 131—clamping part connecting shaft, 132—clamping part torsion spring, 14—protective sleeve.

[0064] 2—Left side panel;

[0065] 3—Left connecting assembly, 31—Left connecting seat, 32—Left connecting shaft, 33—Left torsion spring;

[0066] 4—Right side panel;

[0067] 5—Right connecting assembly, 51—Right connecting seat, 52—Right connecting shaft, 53—Right torsion spring;

[0068] 6—Right angle of the wall / column surface. Detailed Implementation

[0069] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0070] Example 1

[0071] like Figures 1 to 10 The improved plastering tool shown includes:

[0072] Adjust handle 1, the pressing part of which can adjust the size of the opening of the clamping part;

[0073] The left side plate 2 is adjustablely connected to the lower part of the left clamp 11 of the adjusting handle 1 via the left connecting assembly 3;

[0074] The right side plate 4 is adjustablely connected to the lower part of the right clamp 12 of the adjusting handle 1 via the right connecting assembly 5;

[0075] The adjustment handle 1 is used to adjust the opening and closing of the left side panel 2 and the right side panel 4.

[0076] Furthermore, such as Figure 7 and Figure 8 as well as Figure 10 As shown, the adjustment handle 1 includes:

[0077] The left clamping member 11 has a "Z" shaped structure. A left snap-fit ​​groove 111 is horizontally opened on the upper part of the left clamping member 11. The two ends of the left snap-fit ​​groove 111 are coaxially connected with connecting shaft connecting holes.

[0078] The right clamping part 12 has a "Z" shaped structure. A right snap-fit ​​groove is opened horizontally on the upper part of the right clamping part 12. The two ends of the right snap-fit ​​groove are coaxially connected and have connecting shaft mounting holes.

[0079] Clamping component connection assembly 13;

[0080] The right clamping member 12 is sleeved on the connecting shaft connecting hole of the left clamping member 11 and is connected as a whole through the clamping member connecting assembly 13.

[0081] Specifically, such as Figure 10 As shown, the clamping member connection assembly 13 includes:

[0082] The clamping member connecting shaft 131 passes through the connecting shaft mounting hole and the connecting shaft connecting hole, and rotatably connects the right clamping member 12 to the left clamping member 11.

[0083] The clamping member torsion spring 132 is sleeved on the outside of the middle section of the clamping member connecting shaft 131. One end of the clamping member torsion spring 132 is in contact with the inner wall of the left clamping member 11, and the other end is in contact with the inner wall of the right clamping member 12.

[0084] Specifically, such as Figure 8 As shown, the lower center of the left clamping member 11 is also provided with a left mounting groove for installing the left connecting component 3, and the two ends of the left mounting groove are coaxially connected with left connecting shaft mounting holes.

[0085] The lower center of the right clamping member 12 is also provided with a right mounting groove for installing the right connecting component 5, and the two ends of the right mounting groove are coaxially connected with right connecting shaft mounting holes.

[0086] Furthermore, such as Figure 9 As shown, the left connecting component 3 includes:

[0087] Left connecting seat 31 is connected to the upper outer side of the left side plate 2;

[0088] The left connecting shaft 32 passes through the left connecting seat 31 and the left connecting shaft mounting hole, and rotatably connects the left side plate 2 to the lower part of the left clamping member 11.

[0089] The left torsion spring 33 is sleeved on the left connecting shaft 32 and located in the left mounting groove. One end of the elastic arm of the left torsion spring 33 is in contact with the outer wall of the left side plate 2, and the other end of the elastic arm is in contact with the left clamping member 11.

[0090] The left connecting seat 31 consists of triangular mounting blocks arranged opposite each other at both ends above the left side plate 2.

[0091] Furthermore, such as Figure 10 As shown, the right connection component 5 includes:

[0092] Right connecting seat 51 is connected to the upper outer side of the right side plate 4;

[0093] The right connecting shaft 52 passes through the right connecting seat 51 and the right connecting shaft mounting hole, and rotatably connects the right side plate 4 to the lower part of the right clamping member 12.

[0094] The right torsion spring 53 is sleeved on the right connecting shaft 52 and located in the right mounting groove. One end of the right torsion spring 53 is in contact with the outer wall of the right side plate 4, and the other end is in contact with the right clamping member 12.

[0095] The right connecting seat 51 consists of triangular mounting blocks that are arranged opposite each other at both ends above the right side plate 4.

[0096] Specifically, such as Figure 10 As shown, the right torsion spring 53 has the same shape and structure as the clamping torsion spring 132 and the left torsion spring 33. The right torsion spring 53 includes a helical spring in the middle and elastic arms connected to both ends of the helical spring. The elastic arms are in an "L" shape, and the helical spring is arranged parallel to the long sides of the elastic arms at both ends.

[0097] Furthermore, such as Figure 6 and Figure 7 As shown, the left side plate 2 and the right side plate 4 are both right-angled trapezoidal plate-shaped components, wherein the upper ends of the left side plate 2 and the right side plate 4 located inside the adjustment handle 1 are provided with chamfers.

[0098] When using this embodiment 1, during construction, the construction personnel first clean up the garbage or dirt at the right angle 6 on the wall and column surface and moisten it with water; at the same time, the mortar or fine stone concrete that needs to be smoothed is pre-filled at the right angle 6 on the wall and column surface, that is, the mortar or fine stone concrete is placed at the right angle 6 on the wall and column surface.

[0099] Immediately afterward, before the mortar or fine aggregate concrete has initially set, the operator holds the adjustment handle 1 and moves the ends of the left side plate 2 and the right side plate 4 toward the right angle 6 of the wall column surface. Then, the operator pinches the pressing part of the adjustment handle 1, causing the protective sleeves 14 of the left clamping member 11 and the right clamping member 12 to come closer and press together. At the same time, the left clamping member 11 drives the left side plate 2 to move through the left connecting component 3, and the right clamping member 12 drives the right side plate 4 through the right connecting component 5, thereby causing the left side plate 2 and the right side plate 4 to open up an opening that contacts the right angle 6 of the wall column surface.

[0100] Then, the operator pinches the pressing part of the adjustment handle 1 and gradually moves the openings of the left side plate 2 and the right side plate 4 closer to the right angle 6 of the wall column. At this time, under the operator's pushing force, the left side plate 2 overcomes the elasticity of the left torsion spring 33, and the inner wall of the left side plate 2 gradually rotates and becomes completely flush with one end of the right angle 6 of the wall column. At the same time, under the operator's pushing force, the right side plate 4 also overcomes the elasticity of the right torsion spring 53, and the inner wall of the right side plate 4 gradually rotates and becomes completely flush with the other end of the right angle 6 of the wall column. Thus, the left side plate 2 and the right side plate 4 form a 90-degree angle that matches the right angle 6 of the wall column.

[0101] Finally, ensure that the included angle between the left side plate 2 and the right side plate 4 is in full contact with the right angle 6 on the wall column surface. Under the elastic action of the left torsion spring 33 and the right torsion spring 53, ensure that the left side plate 2 and the right side plate 4 are in full contact with the mortar or fine aggregate concrete on both ends of the right angle 6 on the wall column surface. This will align the left side plate 2 and the right side plate 4 with the mortar or fine aggregate concrete at the right angle 6 on the wall column surface. Then, while holding the adjusting handle 1, pull the adjusting handle 1 with a little force in one direction to scrape and shape the mortar or fine aggregate concrete at the right angle 6 on the wall column surface, forming a smooth and consistent mortar joint with rounded joints and tight mortar. After the construction of the right angle 6 on the wall column surface is completed, conduct an inspection and acceptance. If it passes the inspection, proceed to the next process and continue the construction of the next right angle 6 on the wall column surface according to the above construction method.

[0102] Finally, as time goes by, once all the construction work is completed, the construction workers only need to clean and repair the utility model, and then transport it to the designated tool storage warehouse for storage using appropriate handling equipment or manually, so that it can be reused next time.

[0103] Example 2

[0104] This embodiment 2 is the same as embodiment 1, except that, as Figure 7 As shown, the pressing parts of the left clamping member 11 and the right clamping member 12 are also fitted with protective sleeves 14. The protective sleeves 14 have a "C" shaped cross section and multiple through holes.

[0105] Specifically, the protective sleeve 14 is a rubber sleeve with multiple through holes for easy gripping by operators.

[0106] In this embodiment 2, since a protective cover is provided on the handheld part of the handheld operating lever 41, it can protect the operator's hands from wear and tear during long-term work, thus ensuring construction safety.

[0107] The specific usage is the same as in Example 1, and will not be repeated here.

[0108] Furthermore, the outer surfaces of the left side plate 2 and the right side plate 4 are respectively provided with an injection molding layer, a rust-proof layer, a waterproof layer, and an anti-stick coating from the inside to the outside.

[0109] In this invention, the anti-stick coating is a polytetrafluoroethylene coating, a nano-silica hydrophobic coating, or a silicone resin coating, which can significantly improve the smoothness of smearing and reduce the adhesion of residual smear, thus making it easier to clean.

[0110] Meanwhile, in this utility model, all connections referred to are fixed connections, movable connections, or detachable connections. Fixed connections are welded connections or directly processed into an integral structure; movable connections, detachable connections, or split structures are hinged connections, internal and external threaded connections, rotating connections, bayonet connections, plug-in sleeves, bolt assembly connections, or screw connections.

[0111] In summary, a more specific embodiment of this utility model is as follows:

[0112] Before using the improved plastering tool for right-angle construction of wall and column surfaces described above, construction workers only need to manually or with appropriate handling equipment move the tool to the designated location for use.

[0113] When using it, it should be used in conjunction with the right angle 6 on the wall or column surface where construction is required.

[0114] The specific construction steps are as follows:

[0115] Step 1: During construction, the workers first clean up any trash or dirt at the six right angles of the wall and column surfaces and then wet them with water.

[0116] Step 2: Fill the 6th right angle of the wall / column surface with mortar or fine aggregate concrete that needs to be smoothed. That is, place the mortar or fine aggregate concrete at the 6th right angle of the wall / column surface.

[0117] Step 3, as follows Figures 1 to 5 As shown, before the mortar or fine aggregate concrete initially sets, the operator holds the adjusting handle 1 and moves the ends of the left side plate 2 and the right side plate 4 towards the right angle 6 of the wall column surface. Then, the operator pinches the pressing part of the adjusting handle 1, causing the protective sleeves 14 of the left clamping member 11 and the right clamping member 12 to press together. Simultaneously, the left clamping member 11 moves the left side plate 2 via the left connecting component 3, and the right clamping member 12 moves the right side plate 4 via the right connecting component 5, thus opening an opening between the left side plate 2 and the right side plate 4 to contact the right angle 6 of the wall column surface. Then, the operator pinches the pressing part of the adjusting handle 1 and gradually moves the opening between the left side plate 2 and the right side plate 4 closer to the right angle 6 of the wall column surface. At this point, under the operator's pushing force, the left side plate 2 overcomes the elasticity of the left torsion spring 33, causing the inner wall of the left side plate 2 to gradually rotate until it is completely flush with one end face of the right angle 6 of the wall column surface. At the same time, under the operator's pushing force, the right side plate 4 overcomes the elasticity of the right torsion spring 53, so that the inner wall of the right side plate 4 gradually rotates and becomes completely flush with the other end face of the right angle 6 of the wall column, thereby making the left side plate 2 and the right side plate 4 form a 90-degree angle that matches the right angle 6 of the wall column; finally, the angle between the left side plate 2 and the right side plate 4 is in complete contact with the right angle 6 of the wall column, and under the elastic action of the left torsion spring 33 and the right torsion spring 53, the left side plate 2 and the right side plate 4 are in full contact with the mortar or fine stone concrete at both ends of the right angle 6 of the wall column, so that the left side plate 2 and the right side plate 4 are aligned with the mortar or fine stone concrete at the right angle 6 of the wall column. Then, while holding the adjustment handle 1, pull the adjustment handle 1 with a little force in one direction to scrape and shape the mortar or fine stone concrete at the right angle 6 of the wall column, and pull it into a smooth mortar joint with rounded mortar and tight mortar.

[0118] Step 4: After the construction of the right angle 6 section of the wall column is completed, an inspection and acceptance will be carried out. If it passes the inspection, the next process will be carried out. The construction method described above will be used to continue the construction of the next right angle 6 section of the wall column.

[0119] Step 5. Finally, as time goes by, once all the construction work is completed, the construction workers only need to clean and repair the utility model, and then transport it to the designated tool storage warehouse for storage using appropriate handling equipment or manually, so that it can be reused next time.

[0120] During the above construction process, if the mortar or fine stone concrete at the right angle 6 of the wall / column surface cannot be formed in one application, the construction workers can continue to repeatedly trowel and press the mortar or fine stone concrete at the right angle 6 of the wall / column surface to form the desired shape.

[0121] During the aforementioned use, since both the upper ends of the left side plate 2 and the right side plate 4 are chamfered, when the left side plate 2 and the right side plate 4 form a 90-degree angle that matches the right angle 6 of the wall column, the chamfers at both ends contact each other, forming a physical limit and keeping the opening angle stably at 90 degrees. This facilitates plastering work on the 90-degree right angle of the wall column, ensuring accurate angle during plastering and avoiding uneven plaster layer or rework due to angle deviation. When not in use, under the elastic action of the clamping torsion spring 132, the right torsion spring 53, and the left torsion spring 33, the adjusting handle 1 moves the left side plate 2 and the right side plate 4 together for easy storage. This allows the tool to occupy less space when not in use, avoiding wasted time on tool organization and improving work efficiency. At the same time, it also keeps the working environment clean, preventing tools from being scattered on the construction site and affecting the construction progress and the cleanliness of the working environment. It is particularly suitable for use in small construction sites or places with limited tool storage space.

[0122] Meanwhile, on the outer surfaces of both the left side panel 2 and the right side panel 4, an injection molding layer, a rust-proof layer, a waterproof layer, and an anti-stick coating are sequentially provided from the inside out. The anti-stick coating is a polytetrafluoroethylene coating, a nano-silica hydrophobic coating, or a silicone resin coating, which can significantly improve the smoothness during slagging and reduce the adhesion of residual slurry, thus making it easier to clean.

[0123] Finally, it should be noted that the specific embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made to it.

Claims

1. An improved plastering tool for right-angle construction on wall and column surfaces, characterized in that, include: Adjust the handle (1), the pressing part of which can adjust the opening size of the clamping part; The left side plate (2) is adjustablely connected to the lower part of the left clamp (11) of the adjusting handle (1) via the left connecting assembly (3); The right side plate (4) is adjustablely connected to the lower part of the right clamp (12) of the adjusting handle (1) via the right connecting assembly (5); The adjustment handle (1) is used to adjust the opening and closing of the left side panel (2) and the right side panel (4).

2. The improved plastering tool for right-angle construction of wall and column surfaces according to claim 1, characterized in that, The adjustment handle (1) includes: The left clamping part (11) has a "Z" shaped structure. A left snap-fit ​​groove (111) is opened horizontally on the top of the left clamping part (11). The two ends of the left snap-fit ​​groove (111) are coaxially connected with connecting shaft connecting holes. The right clamp (12) has a "Z" shaped structure. A right snap-fit ​​groove is opened horizontally on the top of the right clamp (12). The two ends of the right snap-fit ​​groove are coaxially connected and have connecting shaft mounting holes. Clamping component connection assembly (13); The right clamp (12) is sleeved on the connecting hole of the connecting shaft of the left clamp (11) and connected as a whole through the clamp connecting assembly (13).

3. The improved plastering tool for right-angle construction on wall and column surfaces according to claim 2, characterized in that, The clamping member connection assembly (13) includes: The clamping member connecting shaft (131) passes through the connecting shaft mounting hole and the connecting shaft connecting hole, and rotatably connects the right clamping member (12) to the left clamping member (11); The clamping member torsion spring (132) is sleeved on the outside of the middle section of the clamping member connecting shaft (131). One end of the clamping member torsion spring (132) is in contact with the inner wall of the left clamping member (11), and the other end is in contact with the inner wall of the right clamping member (12).

4. An improved plastering tool for right-angle construction on wall and column surfaces according to claim 2, characterized in that, The lower center of the left clamp (11) is also provided with a left mounting groove for installing the left connecting component (3), and the two ends of the left mounting groove are coaxially connected with left connecting shaft mounting holes. The lower center of the right clamp (12) is also provided with a right mounting groove for installing the right connecting component (5), and the two ends of the right mounting groove are coaxially connected with right connecting shaft mounting holes.

5. An improved plastering tool for right-angle construction of wall and column surfaces according to claim 1, characterized in that, The left connection component (3) includes: Left connecting seat (31) is connected to the upper outer side of the left side plate (2); The left connecting shaft (32) passes through the left connecting seat (31) and the left connecting shaft mounting hole, and rotatably connects the left side plate (2) to the lower part of the left clamp (11); Left torsion spring (33) is sleeved on the left connecting shaft (32) and located in the left mounting groove. One end of the elastic arm of the left torsion spring (33) is in contact with the outer wall of the left side plate (2), and the other end of the elastic arm is in contact with the left clamping member (11). The left connecting seat (31) consists of triangular mounting blocks arranged opposite each other at both ends above the left side plate (2).

6. An improved plastering tool for right-angle construction on wall and column surfaces according to claim 1, characterized in that, The right connection component (5) includes: The right connecting seat (51) is connected to the upper outer side of the right side plate (4); The right connecting shaft (52) passes through the right connecting seat (51) and the right connecting shaft mounting hole, and rotatably connects the right side plate (4) to the lower part of the right clamp (12); The right torsion spring (53) is sleeved on the right connecting shaft (52) and located in the right mounting groove. One end of the right torsion spring (53) is in contact with the outer wall of the right side plate (4), and the other end is in contact with the right clamping member (12). The right connector (51) consists of triangular mounting blocks arranged opposite each other at both ends above the right side plate (4).

7. An improved plastering tool for right-angle construction on wall and column surfaces according to claim 6, characterized in that, The right torsion spring (53) has the same shape and structure as the clamping torsion spring (132) and the left torsion spring (33). The right torsion spring (53) includes a helical spring in the middle and elastic arms connected to both ends of the helical spring. The elastic arms are in an "L" shape, and the helical spring is parallel to the long side of the elastic arms at both ends.

8. An improved plastering tool for right-angle construction on wall and column surfaces according to claim 1, characterized in that, The left side plate (2) and the right side plate (4) are both right-angled trapezoidal plate-shaped components. The upper ends of the left side plate (2) and the right side plate (4) located inside the adjustment handle (1) are both provided with chamfers.

9. An improved plastering tool for right-angle construction of wall and column surfaces according to claim 1 or 2, characterized in that, The pressing parts of the left clamping member (11) and the right clamping member (12) are also fitted with protective sleeves (14). The protective sleeves (14) have a "C" shaped cross section and multiple through holes.

10. An improved plastering tool for right-angle construction on wall and column surfaces according to claim 1, characterized in that, The outer surfaces of the left side plate (2) and the right side plate (4) are also provided with an injection molding layer, an anti-rust layer, a waterproof layer and an anti-stick coating in sequence from the inside to the outside.

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