Wall surface trowelling tool

By designing wall smear tools with adjustable movable handles and multi-function smear components, the problems of insufficient application flexibility and low use comfort are solved, and higher smearing and efficiency are achieved.

CN222886964UActive Publication Date: 2025-05-20CHINA AEROSPACE CONSTR ENG GRP CO LTD
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Patent Information

Application Number
CN202421896475.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-07
Publication Date
2025-05-20
Estimated Expiration
2034-08-07

AI Technical Summary

Technical Problem

The shape and size of existing wall smear tools are fixed, and cannot be quickly adjusted according to actual needs, which limits its application flexibility in surfaces of different sizes and shapes, and reduces comfort during long-term use, resulting in user fatigue.

Method used

A wall smear tool is designed, including an adjustable movable handle and a multi-function smear assembly. The smear assembly is equipped with a straight plate, a curved plate and an installation part. The movable handle can adjust the length and height through a combination of a slide, a connecting frame and a handle to meet different working needs.

Benefits of technology

Through the setting of the arc plate part, the arc surface can be smoothed directly, avoiding the replacement of special tools, improving the convenience and efficiency of use; the adjustment function of the movable handle improves the comfort of use and reduces physical discomfort caused by the user for a long time.

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Abstract

The utility model provides a wall surface trowelling tool which comprises a trowelling assembly and a movable handle, the upper end of the trowelling assembly is movably provided with the adjustable movable handle, and the trowelling assembly comprises a straight plate part, an arc plate part and an installation part. In actual use, the arc plate part can be directly adopted to conduct trowelling treatment on some arc surfaces, special arc surface trowelling equipment does not need to be replaced again, use convenience is greatly improved, and the problem that the efficiency is reduced due to the fact that tools are replaced back and forth is solved; and if higher positions need to be troweled, the user can additionally install the second handle and can also unscrew the screw knob and adjust the position of the sliding plate on the installation part, so that the optimal working holding height is achieved, the use comfort of the user can be effectively improved, and body discomfort caused by long-time foot-stepping work is avoided.
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Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering equipment, and particularly relates to a wall smoothing tool. Background Art

[0002] In construction engineering, there are many wall smoothing tools, among which the trowel is the most commonly used, also known as a plastering knife, mainly used for applying and leveling materials such as mortar and cement during bricklaying construction. It is usually made of iron, stainless steel or wood, and has a flat plastering surface and a handle for easy holding. The plastering surface is designed to be smooth so that the material can be evenly spread on the surface, and the handle ensures that the user can hold the tool comfortably and firmly for operation. The trowel has various shapes, including rectangular, round-headed rectangular, pointed rectangular, etc., to adapt to different construction requirements and angles.

[0003] The shape and size of the plastering surface are fixed and cannot be quickly adjusted according to actual work needs, which limits its application flexibility on surfaces of different sizes and shapes. Although most trowels have a basic handle design, the lack of an adjustable structure design may lead to reduced comfort during long-term use, causing the user to easily feel fatigued, especially during large-scale operations. Therefore, we hope to design a welding equipment with a new structure to solve this problem. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a wall smoothing tool to solve the problems raised in the above background art.

[0005] The utility model is realized through the following technical solutions: a wall smoothing tool, comprising: a smoothing component and a movable handle. The movable handle is movably installed at the upper end of the smoothing component. The smoothing component includes a straight plate part, an arc plate part and a mounting part;

[0006] The arc plate part is integrally arranged at the left end of the straight plate part, and the mounting part is welded in the middle of the upper surface of the straight plate part;

[0007] The movable handle includes a sliding plate, a connecting frame, a handle one and a handle two. The connecting frame is fixed in the middle of the upper side of the sliding plate. The handle one is threadedly connected to the upper right side of the connecting frame, and the handle two is threadedly connected to the right side of the handle one.

[0008] As a preferred embodiment, the cross-section of the arc plate part is a quarter-circle structure. The height of the uppermost part of the arc plate part is half of the lowest height of the handle one and the handle two. The width of the arc plate part is the same as the width of the straight plate part. The setting of the arc plate part can facilitate the user to do the smoothing work of some arc-shaped structural surfaces without having to carry a similar special arc surface smoothing tool again.

[0009] As a preferred embodiment, the mounting portion includes a first card plate, a second card plate and a screw knob, the first card plate and the second card plate are arranged in a mirror image structure, and the cross sections of the first card plate and the second card plate are both inverted L-shaped structures.

[0010] As a preferred embodiment, the rear side of the upper surface of the first card plate and the front side of the upper surface of the second card plate are penetrated downward to form a plurality of screw holes distributed in a linear and equally divided structure, and a slide groove is provided between the first card plate and the second card plate, the upper end of the slide groove is open, and the left and right ends of the slide groove are both through-type structural designs;

[0011] The upper sides of the first and second card plates are both threadedly connected with screw knobs through screw holes.

[0012] As a preferred embodiment, the length of the slide plate is one third of the length of the first and second pallet plates, and the cross-sectional dimensions and structure of the slide plate match those of the slide slot.

[0013] As a preferred embodiment, the cross-sectional width of the connecting frame gradually increases from top to bottom, and three weight-reducing grooves extending from the middle of the lower side of the connecting frame are opened upwards in the front-to-back direction. The three weight-reducing grooves have the same structure and their sizes gradually increase from top to bottom. The setting of the weight-reducing grooves reduces the weight of the connecting frame itself without affecting the strength of the connecting frame, thereby reducing the discomfort of users during long-term use.

[0014] As a preferred embodiment, a connecting screw 1 is provided at the left end of the handle 1, and the left end of the handle 1 is threadedly connected to the right side of the upper end of the connecting frame through the connecting screw 1, and a threaded blind hole is opened to the left at the right end of the handle 1;

[0015] The left end of the second handle is provided with a second connecting screw, and the second handle is threadedly connected to the right end of the first handle through the second connecting screw and the threaded blind hole.

[0016] After adopting the above technical solution, the beneficial effect of the utility model is: by setting the arc plate part on the straight plate part, in actual use, the arc plate part can be directly used to smooth some arc surfaces without having to replace it with a dedicated arc surface smoothing equipment again, which greatly improves the convenience of use and avoids the problem of reduced efficiency caused by changing tools back and forth;

[0017] The setting of the movable handle, in cooperation with the installation part, when in actual use, when the user needs to use the arc plate part for arc surface smoothing treatment, the user can directly unscrew and remove the handle one and connect it to the side of the connecting frame away from the arc plate part. If the length of the handle one is insufficient and the work is not comfortable, the user can connect the handle two to the end of the handle one with a threaded blind hole through the connecting screw two to increase the effective holding length of the entire handle and improve the user's comfort. On the contrary, if the straight plate part needs to be used, the handle one is removed according to the above steps and installed on the side of the connecting frame close to the arc plate part. And if it is necessary to smooth a higher position (the height that requires the user to stand on tiptoe and the ladder needs to be continuously moved), in addition to adding the handle two, the user can also loosen the screw knob to adjust the position of the sliding plate on the installation part, so as to achieve the best working holding height, which can effectively improve the user's comfort and avoid physical discomfort caused by standing on tiptoe for a long time. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of a wall smoothing tool of the present invention.

[0020] Figure 2 It is a schematic diagram of the movable handle structure of a wall smoothing tool of the present invention.

[0021] Figure 3 is Figure 1 an enlarged schematic diagram of part A in

[0022] In the figure, 100 - smoothing component, 110 - straight plate part, 120 - arc plate part, 130 - installation part, 131 - clamping plate one, 132 - clamping plate two, 133 - chute, 134 - screw hole, 140 - screw knob;

[0023] 200 - movable handle, 210 - sliding plate, 220 - connecting frame, 230 - weight reduction groove, 240 - handle one, 241 - threaded blind hole, 250 - handle two, 251 - connecting screw two. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 3 , the present invention provides a technical solution: a wall smoothing tool, including: a smoothing component 100 and a movable handle 200. The movable handle 200 is movably installed at the upper end of the smoothing component 100. The smoothing component 100 includes a straight plate portion 110, an arc plate portion 120, and a mounting portion 130;

[0026] An arc plate portion 120 is integrally provided at the left end of the straight plate portion 110, and a mounting portion 130 is welded in the middle of the upper surface of the straight plate portion 110;

[0027] The movable handle 200 includes a slide plate 210, a connecting frame 220, a handle one 240, and a handle two 250. A connecting frame 220 is fixed in the middle of the upper side of the slide plate 210. A handle one 240 is threadedly connected to the upper right side of the connecting frame 220, and a handle two 250 is threadedly connected to the right side of the handle one 240.

[0028] Please refer to Figure 1 , Figure 3 , the cross-section of the arc plate portion 120 is a quarter-circle structure. The height of the uppermost end of the arc plate portion 120 is half of the height of the lowermost sides of the handle one 240 and the handle two 250. The width of the arc plate portion 120 is the same as the width of the straight plate portion 110. The setting of the arc plate portion 120 can facilitate the user to perform the smoothing work on some arc-shaped structural surfaces without the need to carry a similar special arc surface smoothing tool again.

[0029] The mounting portion 130 includes a clamping plate one 131, a clamping plate two 132, and a screw knob 140. The clamping plate one 131 and the clamping plate two 132 are arranged in a mirror image structure. The cross-sections of the clamping plate one 131 and the clamping plate two 132 are both inverted L-shaped structures.

[0030] A plurality of linearly equally distributed screw holes 134 are formed by penetrating downward on the rear side of the upper surface of the clamping plate one 131 and the front side of the upper surface of the clamping plate two 132. A chute 133 is provided between the clamping plate one 131 and the clamping plate two 132. The upper end of the chute 133 is open, and both the left and right ends of the chute 133 are of a through structure design;

[0031] Both the upper sides of the clamping plate one 131 and the clamping plate two 132 are threadedly connected with screw knobs 140 through the screw holes 134.

[0032] The length of the sliding plate 210 is one-third of the lengths of the clamping plate one 131 and the clamping plate two 132, and the cross-sectional dimensions and structure of the sliding plate 210 are both matched with the cross-sectional dimensions and structure of the sliding groove 133.

[0033] As the first embodiment of the present utility model, by providing the arc plate portion 120 on the straight plate portion 110, in actual use, the arc plate portion 120 can be directly used to level some arc surfaces without having to replace it with a dedicated arc surface leveling device again, greatly improving the convenience of use and avoiding the problem of reduced efficiency caused by repeatedly changing tools.

[0034] Please refer to Figures 1 to 3 , the cross-sectional width of the connecting frame 220 gradually increases from top to bottom. Three weight-reducing grooves 230 penetrating in the front-back direction are provided upward in the middle of the lower side of the connecting frame 220. The structures of the three weight-reducing grooves 230 are the same and their sizes gradually increase from top to bottom. The setting of the weight-reducing grooves 230 reduces the weight of the connecting frame 220 itself without affecting the use strength of the connecting frame 220, and reduces the discomfort of the user during long-term use.

[0035] A connecting screw one is provided at the left end of the handle one 240. The left end of the handle one 240 is threadedly connected to the upper right side of the connecting frame 220 through the connecting screw one. A threaded blind hole 241 is provided by drilling leftward at the right end of the handle one 240;

[0036] A connecting screw two 251 is provided at the left end of the handle two 250. The handle two 250 is threadedly connected to the right end of the handle one 240 through the connecting screw two 251 and the threaded blind hole 241.

[0037] As the second embodiment of the present utility model, based on the above first embodiment, in actual use, when the user needs to use the arc plate portion 120 for arc surface leveling, the user can directly unscrew and remove the handle one 240 and connect it to the side of the connecting frame 220 away from the arc plate portion 120. If the length of the handle one 240 is insufficient and the work is uncomfortable, the user can connect the handle two 250 to the end of the handle one 240 with the threaded blind hole 241 through the connecting screw two 251 to lengthen the effective holding length of the entire handle and improve the user's comfort during use. On the contrary, if the straight plate portion 110 needs to be used, the handle one 240 is removed and installed on the side of the connecting frame 220 close to the arc plate portion 120 according to the above steps. And if it is necessary to level a higher position (the height that requires the user to stand on tiptoe to work and the ladder needs to be continuously moved), in addition to adding the handle two 250, the user can also loosen the screw knob 140 to adjust the position of the sliding plate 210 on the mounting portion 130, so as to achieve the best working holding height, which can effectively improve the user's comfort during use and avoid physical discomfort caused by standing on tiptoe for a long time.

[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wall smoothing tool, comprising: A smoothing component (100) and a movable handle (200), characterized in that an adjustable movable handle (200) is movably mounted on the upper end of the smoothing component (100), and the smoothing component (100) comprises a straight plate portion (110), a curved plate portion (120) and a mounting portion (130); The left end of the straight plate portion (110) is integrally provided with an arc plate portion (120), and a mounting portion (130) is welded in the middle of the upper surface of the straight plate portion (110); The movable handle (200) comprises a slide plate (210), a connecting frame (220), a handle 1 (240) and a handle 2 (250); the connecting frame (220) is fixed in the middle of the upper side of the slide plate (210); the upper right side of the connecting frame (220) is threadedly connected to the handle 1 (240); and the right side of the handle 1 (240) is threadedly connected to the handle 2 (250).

2. A wall smoothing tool as claimed in claim 1, characterized in that: The cross section of the arc plate portion (120) is a quarter-circle structure, the height of the uppermost end of the arc plate portion (120) is half the height of the lowermost sides of handle 1 (240) and handle 2 (250), and the width of the arc plate portion (120) is the same as the width of the straight plate portion (110).

3. A wall smoothing tool as claimed in claim 2, characterized in that: The mounting portion (130) comprises a first clamping plate (131), a second clamping plate (132) and a screw knob (140); the first clamping plate (131) and the second clamping plate (132) are arranged in a mirror-image structure; and the cross-sections of the first clamping plate (131) and the second clamping plate (132) are both inverted L-shaped structures.

4. A wall smoothing tool as claimed in claim 3, characterized in that: The rear side of the upper surface of the first card plate (131) and the front side of the upper surface of the second card plate (132) are both penetrated downward to form a plurality of screw holes (134) distributed in a linear and equally divided structure, and a slide groove (133) is provided between the first card plate (131) and the second card plate (132), and the upper end of the slide groove (133) is open, and the left and right ends of the slide groove (133) are both through-type structural designs; The upper sides of the first clamping plate (131) and the second clamping plate (132) are both threadedly connected with a screw knob (140) through a screw hole (134).

5. A wall smoothing tool as claimed in claim 4, characterized in that: The length of the slide plate (210) is one third of the length of the first clamp plate (131) and the second clamp plate (132), and the cross-sectional dimensions and structure of the slide plate (210) are matched with the cross-sectional dimensions and structure of the slide groove (133).

6. A wall smoothing tool as claimed in claim 1, characterized in that: The cross-sectional width of the connecting frame (220) gradually increases from top to bottom, and three weight-reducing grooves (230) penetrating in the front-to-back direction are opened upward in the middle of the lower side of the connecting frame (220), and the three weight-reducing grooves (230) have the same structure and their sizes gradually increase from top to bottom.

7. A wall smoothing tool as claimed in claim 1, characterized in that: The left end of the handle 1 (240) is provided with a connecting screw 1, and the left end of the handle 1 (240) is threadedly connected to the right side of the upper end of the connecting frame (220) through the connecting screw 1, and the right end of the handle 1 (240) is provided with a threaded blind hole (241) to the left; The left end of the second handle (250) is provided with a second connecting screw (251), and the second handle (250) is threadedly connected to the right end of the first handle (240) through the second connecting screw (251) and the threaded blind hole (241).