A light collecting tool for external corner finishing of a wall surface

Abstract

The utility model discloses a kind of external corner troweling light-collecting tools for wall surface, including external corner troweling structure and telescopic handle, telescopic handle includes handle body and telescopic rod, external corner troweling structure is installed on handle body, handle body is connected with the one end of telescopic rod, telescopic rod is configured as can drive handle body along the axial telescoping of telescopic rod;Reinforcing rib, reinforcing rib is fixed between external corner troweling structure and handle body;Telescopic rod includes at least two sleeves, each sleeve is coaxially arranged and is sequentially sliding sleeve joint;First locking structure is arranged between adjacent two sleeves, each first locking structure is configured as can unlock and / or lock adjacent two sleeves;The connection strength between external corner troweling structure and handle body is strengthened by reinforcing rib, and construction quality is guaranteed;Flexible adjustment of telescopic handle working length is realized by telescopic rod, construction efficiency is improved, safety risk is reduced, and flexibility is high, and stability is good.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a tool for finishing the external corners of walls. Background Technology

[0002] An external corner of a wall is a protruding corner formed by the intersection of two adjacent walls. Because it is easily damaged by impact and significantly affects the overall aesthetics of the wall, a finishing process is used. First, cement mortar or putty is applied to the external corner. Then, professional tools (such as trowels and steel plates) are used to finely grind and compact the surface of the external corner, ensuring straight lines, sharp edges, and a smooth, flat surface. This achieves a beautiful, sturdy, and durable effect, improving the overall quality of the wall decoration. Finishing external corners is a crucial step in construction, especially when working at heights. Traditional finishing tools have many shortcomings in performance and user experience that urgently need to be addressed, significantly impacting construction efficiency, safety, and quality.

[0003] Traditional corner plastering tools typically have non-adjustable handle lengths. When faced with work scenarios requiring varying heights, construction workers often have to frequently climb ladders to adapt to the working height of the plastering section. This not only reduces construction efficiency, but each climb and ladder movement consumes a significant amount of time and energy, making the entire construction process cumbersome and inefficient. Furthermore, frequent ladder climbing increases the risk of workers operating at heights, posing safety hazards. In addition, the plastering section and handle are usually connected by gluing or riveting, a simple connection method with poor stability and firmness. Over long-term use, due to various external forces during construction, such as vibration and friction, the connection between the plastering section and the handle can easily loosen. This not only leads to increased construction errors, affecting the flatness of the wall and the verticality of the corner, reducing construction quality, but also may cause safety accidents due to the sudden detachment of connecting parts, threatening the personal safety of construction workers. Utility Model Content

[0004] The purpose of this utility model is to provide a tool for finishing the external corner of a wall, in order to solve the problems of existing external corner finishing tools, such as low construction efficiency and safety hazards due to the non-adjustable handle length, and the simple connection method between the finishing part and the handle with poor stability and firmness, which makes them prone to loosening, affecting quality and causing safety accidents.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A tool for finishing the external corner of a wall, comprising:

[0007] The corner plastering structure and telescopic handle are provided. The telescopic handle includes a handle body and a telescopic rod. The corner plastering structure is installed on the handle body. The handle body is connected to one end of the telescopic rod. The telescopic rod is configured to drive the handle body to extend and retract along the axial direction of the telescopic rod.

[0008] A reinforcing rib is fixed between the corner plastering structure and the handle body to increase the connection strength between the corner plastering structure and the handle body.

[0009] The telescopic rod includes at least two sleeves, each sleeve being coaxially arranged and slidably connected in sequence; a first locking structure is provided between each two adjacent sleeves, and each first locking structure is configured to unlock and / or lock the two adjacent sleeves.

[0010] Based on the aforementioned technical means, the connection strength between the external corner plastering structure and the handle body is enhanced by reinforcing ribs, avoiding the problem of loosening due to external forces during long-term use, ensuring construction quality and reducing the risk of safety accidents. At the same time, the telescopic function of multiple sleeves slidingly connected in the telescopic rod, combined with the locking function of the first locking structure, enables flexible adjustment of the working length of the telescopic handle. The first locking structure ensures a stable connection between each sleeve, thereby allowing flexible adjustment of the working height of the external corner plastering structure. Construction personnel can adapt to different height working scenarios without frequently climbing ladders, improving construction efficiency, simplifying the construction process, reducing high-altitude work time, further reducing safety risks, and demonstrating high flexibility and good stability.

[0011] Furthermore, the first locking structure includes two positioning pins, which are symmetrically arranged and movably installed at one end of one of the sleeves, and each sleeve has a pair of positioning holes. The two positioning pins are configured to extend and retract radially along the sleeves to engage or disengage with the pair of positioning holes on adjacent sleeves.

[0012] Based on the above technical means, by cooperating with the positioning holes on adjacent sleeves through the two symmetrically set positioning pins that can extend and retract radially along the sleeve, a fast, accurate and stable locking and unlocking operation between adjacent sleeves is realized. This not only ensures the stability of the telescopic rod after it is adjusted to the required length and ensures the reliable use of the tool during the construction process, but also simplifies the length adjustment process, allowing construction personnel to conveniently and efficiently adjust the length of the telescopic handle according to different working heights, thereby improving construction efficiency and operational convenience.

[0013] Furthermore, the first locking structure also includes an elastic element connected between the two positioning pins. The elastic element is configured to drive the two positioning pins to slide radially along the sleeve, so that the two positioning pins extend out of the sleeve and engage with the positioning holes on the adjacent sleeve, or retract into the sleeve and disengage from the positioning holes on the adjacent sleeve.

[0014] Based on the above technical means, two positioning pins are connected by an elastic element. The elastic force of the elastic element drives the positioning pin to slide radially along the sleeve, realizing the automatic engagement and disengagement of the positioning pin with the positioning hole on the adjacent sleeve. The operation is simple and quick, improving the efficiency of adjusting the length of the telescopic handle. At the same time, the reset function of the elastic element ensures the stability of the positioning pin in the engaged state, preventing accidental loosening during construction, ensuring the smooth progress and reliability of construction, and significantly improving the overall performance and user experience.

[0015] Furthermore, the number of positioning hole pairs is two or more, and each positioning hole pair is evenly distributed along the axial direction of the sleeve.

[0016] Based on the aforementioned technical means, by setting two or more pairs of positioning holes evenly distributed along the axial direction on the sleeve, a rich and precise selection of gears is provided for adjusting the length of the telescopic handle. Construction personnel can accurately adjust the tool to the most suitable length according to the actual working height requirements, avoiding inconvenience or quality defects caused by inaccurate length adjustment, improving the flexibility and adaptability of tool use, optimizing the construction experience and effect, and meeting the needs of diverse construction scenarios while being highly practical.

[0017] Furthermore, it also includes a connecting component, which includes a connecting rod, a first connecting structure, and a second connecting structure. One end of the connecting rod is detachably connected to one end of the telescopic rod through the first connecting structure, and the other end of the connecting rod is detachably connected to the handle body through the second connecting structure.

[0018] Based on the above technical means, the connecting rod is detachably connected to the first connecting structure and the second connecting structure at both ends, respectively, thus achieving a detachable connection with the sleeve and handle body. This not only facilitates the assembly, disassembly, and transportation of the tool, reducing storage and carrying costs, but also improves the tool's versatility and maintainability. When one component is damaged, it can be quickly replaced without the need for complete scrapping. At the same time, it is convenient to replace connecting rods, handle bodies, and telescopic rods of different specifications according to actual needs to adapt to diverse construction scenarios, making it highly practical.

[0019] Furthermore, the first connecting structure includes an external threaded cylinder and an internal threaded cylinder. The external threaded cylinder is coaxially fixedly sleeved on the outer wall of one end of the telescopic rod, and one end of the internal threaded cylinder is coaxially fixedly sleeved on one end of the connecting rod. The other end of the internal threaded cylinder is configured to be threadedly engaged with the external threaded cylinder.

[0020] Based on the above technical means, by using the threaded engagement of the external threaded cylinder and the internal threaded cylinder, in practical applications, only a simple rotation operation is needed to achieve quick and stable connection and disassembly between the connecting rod and the sleeve. This not only makes the operation convenient and efficient, but also ensures the stability and reliability of the connection due to the tightness of the threaded engagement, preventing loosening or falling off during construction, and improving the safety and durability of the tool. At the same time, it facilitates the assembly, maintenance and replacement of parts of the tool, further enhancing the practicality and flexibility of the tool.

[0021] Furthermore, the second connection structure includes a mounting plate and a connecting plate. A U-shaped groove is formed on the mounting plate, and the handle body passes through the U-shaped groove. A second locking structure is provided between the two side walls of the U-shaped groove. The second locking structure is used to lock the handle body in the U-shaped groove. The connecting plate is obliquely fixed on the mounting plate, and the other end of the connecting rod is vertically fixed on the connecting plate.

[0022] Based on the aforementioned technical means, the U-shaped groove on the mounting plate cooperates with the handle body, and a second locking structure is used to achieve a stable lock, ensuring the reliability and stability of the connection between the handle body and the connecting rod, preventing shaking or falling off during construction. At the same time, the connecting plate is tilted and fixed on the mounting plate, and the connecting rod is vertically fixed, which optimizes the mechanical structure of the tool, improves the overall strength and durability, facilitates assembly, maintenance and component replacement, and enhances the practicality and construction efficiency of the tool.

[0023] Furthermore, the second locking structure includes a threaded rod, and mounting holes are formed on both sides of the U-shaped groove. One end of the threaded rod is fixed with a limit block, and the other end is threaded through the two mounting holes and threaded with a nut.

[0024] Based on the aforementioned technical means, by using a threaded rod to pass through the mounting holes on both sides of the U-shaped groove and cooperate with the nuts, in practical applications, after the U-shaped groove is locked onto the handle body, the threaded rod passes through the corresponding mounting hole, and only the nuts need to be tightened to achieve a firm lock on the handle body in the U-shaped groove. The operation is simple and the locking effect is reliable, preventing the handle body from shaking or falling out during construction, ensuring construction safety and quality. At the same time, this detachable threaded connection method facilitates the quick installation and removal of the handle body, making it convenient for tool storage, transportation, and flexible replacement of different handles, thus improving the practicality and ease of use of the tool.

[0025] Furthermore, the external corner plastering structure includes two plastering panels, with one side of the two plastering panels fixed together to form a working surface that can adapt to the external corner of the wall. The handle body is parallel to the side of the two plastering panels that are fixed together, and the reinforcing rib is fixed between the handle body and the side of the two plastering panels that are fixed together.

[0026] Based on the aforementioned technical means, by welding and fixing two plastering boards to one side to form a working surface adapted to the external corner of the wall, it can closely fit the contour of the external corner of the wall, ensuring that the plastering and finishing work is uniform and flat, effectively improving the construction quality; the handle body is set parallel to the fixed side of the plastering board, and one end of the reinforcing rib is welded and fixed to the fixed side of the two plastering boards, which not only enhances the stability of the overall structure of the tool and optimizes the force transmission path, making the operation more labor-saving and precise, but also makes it easier for construction workers to hold and apply force, significantly improving construction efficiency and operating comfort.

[0027] Furthermore, a rubber buffer sleeve is fitted onto the other end of the telescopic rod.

[0028] Based on the above technical means, a rubber buffer sleeve is attached to the other end of the telescopic pole as a handhold for construction workers. The rubber buffer sleeve has an anti-slip function, which not only avoids the risk of slipping but also improves the operating comfort of construction workers.

[0029] The beneficial effects achieved by this utility model are:

[0030] This invention enhances the connection strength between the corner plastering structure and the handle body by using reinforcing ribs, preventing loosening of the connection due to external forces during long-term use, ensuring construction quality and reducing the risk of safety accidents. Simultaneously, the telescopic function of multiple sleeves slidingly connected in the telescopic rod, combined with the locking function of the first locking structure, enables flexible adjustment of the working length of the telescopic handle. The first locking structure ensures a stable connection between the sleeves, allowing for flexible adjustment of the working height of the corner plastering structure. Construction workers can adapt to different working heights without frequently climbing ladders, improving construction efficiency, simplifying the construction process, reducing high-altitude work time, and further reducing safety risks. It offers high flexibility and good stability. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a cross-sectional view of the telescopic rod of this utility model;

[0033] Figure 3 This is an exploded view of the first connecting structure and the telescopic rod of this utility model;

[0034] Figure 4This is an exploded view of the second connecting structure of this utility model.

[0035] Among them, 11-slip panel; 2-handle body; 3-reinforcing rib; 41-sleeve; 411-positioning hole pair; 42-first locking structure; 421-positioning pin; 422-elastic element; 51-connecting rod; 52-first connecting structure; 521-external threaded cylinder; 522-internal threaded cylinder; 53-second connecting structure; 531-mounting plate; 5311-U-shaped groove; 5312-mounting hole; 532-connecting plate; 533-second locking structure; 5331-threaded rod; 5332-nut; 6-rubber buffer sleeve.

[0036] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0039] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0040] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0041] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0042] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0043] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0044] This embodiment relates to a tool for finishing the external corners of a wall, such as... Figure 1 As shown, it includes: a corner plastering structure and a telescopic handle. The telescopic handle includes a handle body 2 and a telescopic rod. The corner plastering structure is installed on the handle body 2. The handle body 2 is connected to one end of the telescopic rod. The telescopic rod is configured to drive the handle body 2 to extend and retract along the axial direction of the telescopic rod. A reinforcing rib 3 is fixed between the corner plastering structure and the handle body 2 to increase the connection strength between the corner plastering structure and the handle body 2. The telescopic rod includes at least two sleeves 41, each sleeve 41 is coaxially arranged and slidably sleeved in sequence. A first locking structure 42 is provided between two adjacent sleeves 41, and each first locking structure 42 is configured to unlock and / or lock the two adjacent sleeves 41.

[0045] In this embodiment, the reinforcing rib 3 is fixed between the corner plastering structure and the handle body 2, enhancing the connection strength between them and preventing loosening due to external forces during long-term use. This ensures construction quality and reduces the risk of safety accidents. Simultaneously, the telescopic function of multiple sleeves 41 slidingly connected in the telescopic rod, combined with the locking function of the first locking structure 42, allows for flexible adjustment of the working length of the telescopic handle. The first locking structure 42 ensures a stable connection between the sleeves 41, enabling flexible adjustment of the working height of the corner plastering structure, improving construction efficiency, simplifying the construction process, and further reducing safety risks. Specifically, in practical applications, the corner plastering structure is configured with a working surface adapted to the corner of the wall for plastering and finishing the corner. The reinforcing rib 3 is made of low-carbon steel round bar, and the handle body 2 is made of solid wood. During installation, the corner plastering structure and the handle body 2 can be connected using a traditional connection method first. Then, one end of the reinforcing rib 3 is welded to the corner plastering structure, and the other end is threaded to the handle body 2. Epoxy resin is then injected at the threaded connection for reinforcement, further enhancing the connection and providing good stability and corrosion resistance. Alternatively, the corner plastering structure and the handle body 2 can be directly connected and fixed using the reinforcing rib 3. Those skilled in the art will understand that the reinforcing rib 3 and the handle body 2 can also be made of other materials. Anti-slip threads are formed on the outer wall of the handle body 2. Each sleeve 41 can be made of stainless steel. During high-altitude operations, the corresponding number of sleeves 41 are extended sequentially according to the actual working height, so that the length of the telescopic handle adapts to the actual working height, thereby adjusting the working height of the corner plastering structure. Then, the first locking structure 42 locks two adjacent sleeves 41, providing good stability.

[0046] like Figure 2 and Figure 3 As shown, in this embodiment, the first locking structure 42 includes two positioning pins 421. The two positioning pins 421 are symmetrically arranged and movably installed at one end of one of the sleeves 41. Each sleeve 41 has a pair of positioning holes 411. The two positioning pins 421 are configured to extend and retract radially along the sleeve 41 to engage or disengage with the pair of positioning holes 411 on the adjacent sleeve 41.

[0047] This embodiment achieves rapid, precise, and stable locking and unlocking operations between adjacent sleeves 41 by using two symmetrically arranged, radially retractable positioning pins 421 that engage with positioning holes 411 on adjacent sleeves 41. This ensures the stability of the telescopic rod after adjustment to the required length, guaranteeing reliable tool use during construction, and simplifies the length adjustment process. It allows construction personnel to conveniently and efficiently adjust the length of the telescopic handle according to different working heights, improving construction efficiency and operational convenience. Specifically, in practical applications, the positioning hole pair 411 includes two symmetrically arranged positioning holes, each corresponding to one of the positioning pins 421. When the positioning pin 421 extends, it engages with the corresponding positioning hole, locking the two adjacent sleeves 41 and preventing relative sliding. When the positioning pin 421 retracts, it disengages with the corresponding positioning hole, unlocking the two adjacent sleeves 41 and allowing relative sliding.

[0048] like Figure 2 and Figure 3 As shown, in this embodiment, the first locking structure 42 further includes an elastic element 422, which is connected between two positioning pins 421. The elastic element 422 is configured to drive the two positioning pins 421 to slide radially along the sleeve 41, so that the two positioning pins 421 extend out of the sleeve 41 and engage with the positioning hole pair 411 on the adjacent sleeve 41, or retract into the sleeve 41 and disengage from the positioning hole pair 411 on the adjacent sleeve 41.

[0049] In this embodiment, two positioning pins 421 are connected by an elastic element 422. The elastic force of the elastic element 422 drives the positioning pins 421 to slide radially along the sleeve 41, realizing the automatic engagement and disengagement of the positioning pins 421 with the positioning holes on the adjacent sleeves 41. The operation is simple and quick, improving the efficiency of adjusting the length of the telescopic handle. At the same time, the reset function of the elastic element ensures the stability of the positioning pins 421 in the engaged state, preventing accidental loosening during construction, ensuring the smooth progress and reliability of construction, and significantly improving the overall performance and user experience. In practical applications, the elastic element 422 can be a spring sheet.

[0050] In a preferred embodiment of this invention, the number of positioning hole pairs 411 is two or more, and each positioning hole pair 411 is evenly distributed along the axial direction of the sleeve 41. By setting two or more positioning hole pairs 411 evenly distributed along the axial direction on the sleeve 41, a rich and precise range of gears is provided for adjusting the length of the telescopic handle. Construction personnel can accurately adjust the tool to the most suitable length according to the actual working height requirements, avoiding inconvenience or quality defects caused by inaccurate length adjustment, improving the flexibility and adaptability of tool use, optimizing the construction experience and effect, and meeting the needs of diverse construction scenarios while being highly practical.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a connecting component is also included. The connecting component includes a connecting rod 51, a first connecting structure 52, and a second connecting structure 53. One end of the connecting rod 51 is detachably connected to one end of the telescopic rod through the first connecting structure 52, and the other end of the connecting rod 51 is detachably connected to the handle body 2 through the second connecting structure 53.

[0052] In this embodiment, the two ends of the connecting rod 51 are detachably connected to the first connecting structure 52 and the second connecting structure 53, respectively, thereby achieving a detachable connection with the sleeve 41 and the handle body 2. This not only facilitates the assembly, disassembly, and transportation of the tool, reducing storage and carrying costs, but also improves the tool's versatility and maintainability. When one component is damaged, it can be quickly replaced without the need for complete scrapping. At the same time, it is convenient to replace the connecting rod 51, handle body 2, and telescopic rod of different specifications according to actual needs to adapt to diverse construction scenarios, making it highly practical.

[0053] like Figure 3 As shown, in this embodiment, the first connecting structure 52 includes an external threaded cylinder 521 and an internal threaded cylinder 522. The external threaded cylinder 521 is coaxially fixedly sleeved on the outer wall of one end of the telescopic rod, and one end of the internal threaded cylinder 522 is coaxially fixedly sleeved on one end of the connecting rod 51. The other end of the internal threaded cylinder 522 is configured to be threadedly engaged with the external threaded cylinder 521.

[0054] This embodiment employs the threaded engagement of an external threaded sleeve 521 and an internal threaded sleeve 522. In practical applications, a simple rotation operation is all that is needed to achieve a quick and stable connection and disassembly between the connecting rod 51 and the sleeve 41. This not only makes the operation convenient and efficient, but also ensures the stability and reliability of the connection due to the tightness of the threaded engagement, preventing loosening or detachment during construction. This enhances the safety and durability of the tool and facilitates its assembly, maintenance, and component replacement, further improving its practicality and flexibility.

[0055] like Figure 4 As shown, in this embodiment, the second connecting structure 53 includes a mounting plate 531 and a connecting plate 532. A U-shaped groove 5311 is formed on the mounting plate 531. The handle body 2 passes through the U-shaped groove 5311. A second locking structure 533 is provided between the two side walls of the U-shaped groove 5311. The second locking structure 533 is used to lock the handle body 2 in the U-shaped groove 5311. The connecting plate 532 is obliquely fixed on the mounting plate 531, and the other end of the connecting rod 51 is vertically fixed on the connecting plate 532.

[0056] In this embodiment, the U-shaped groove 5311 on the mounting plate 531 cooperates with the handle body 2, and the second locking structure 533 is used to achieve a stable lock, ensuring the reliability and stability of the connection between the handle body 2 and the connecting rod 51, preventing shaking or falling off during construction. At the same time, the connecting plate 532 is tilted and fixed on the mounting plate 531 and the connecting rod 51 is vertically fixed, which optimizes the mechanical structure of the tool, improves the overall strength and durability, facilitates assembly, maintenance and component replacement, and enhances the practicality and construction efficiency of the tool.

[0057] like Figure 4 As shown, in this embodiment, the second locking structure 533 includes a threaded rod 5331. Mounting holes 5312 are formed on both sides of the U-shaped groove 5311. One end of the threaded rod 5331 is fixed with a limit block, and the other end is threaded through the two mounting holes 5312 and threaded with a nut 5332.

[0058] In this embodiment, threaded rods 5331 are sequentially passed through mounting holes 5312 on both sides of the U-shaped groove 5311 and fitted with nuts 5332. In practical applications, after the U-shaped groove 5311 is secured to the handle body 2, the threaded rods 5331 pass through the corresponding mounting holes 5312. Simply tightening the nuts 5332 brings the two sides of the U-shaped groove 5311 together, thus achieving a secure lock on the handle body 2 within the U-shaped groove 5311. The operation is simple and the locking effect is reliable, preventing the handle body 2 from shaking or coming off during construction, ensuring construction safety and quality. At the same time, this detachable threaded connection method facilitates the quick installation and removal of the handle body 2, making it convenient for tool storage, transportation, and flexible replacement of different handles, improving the practicality and ease of use of the tool. The number of threaded rods 5331 can be two or more, and the number of mounting holes 5312 on both sides of the U-shaped groove 5311 corresponds to the number of threaded rods 5331, enhancing the stability of the lock.

[0059] like Figure 1 As shown, in this embodiment, the corner plastering structure includes two plastering panels 11, with one side of the two plastering panels 11 fixed together to form a working surface that can adapt to the corner of the wall. The handle body 2 is parallel to the side of the two plastering panels 11 that is fixed together, and the reinforcing rib 3 is fixed between the handle body 2 and the side of the two plastering panels 11 that is fixed together.

[0060] This embodiment uses two plastering panels 11 welded and fixed on one side to form a working surface adapted to the external corner of the wall, so that it can closely fit the outline of the external corner of the wall, ensuring that the plastering and finishing work is uniform and flat, effectively improving the construction quality; the handle body 2 is set parallel to the fixed side of the plastering panel 11, and one end of the reinforcing rib 3 is welded and fixed to the fixed side of the two plastering panels 11, which not only enhances the stability of the overall structure of the tool and optimizes the force transmission path, making the operation more labor-saving and precise, but also makes it easier for construction workers to hold and apply force, significantly improving construction efficiency and operating comfort; the two plastering panels 11 can be made of stainless steel.

[0061] like Figure 1 As shown, in this embodiment, a rubber buffer sleeve 6 is fitted onto the other end of the telescopic rod; in this embodiment, the rubber buffer sleeve 6 is fitted onto the other end of the telescopic rod as a handhold for construction workers. The rubber buffer sleeve 6 has an anti-slip function, which not only avoids the risk of slipping but also improves the operating comfort of construction workers.

[0062] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A tool for finishing and smoothing the external corners of walls, characterized in that, include: The corner plastering structure and telescopic handle, wherein the telescopic handle includes a handle body (2) and a telescopic rod, the corner plastering structure is mounted on the handle body (2), the handle body (2) is connected to one end of the telescopic rod, and the telescopic rod is configured to drive the handle body (2) to extend and retract along the axial direction of the telescopic rod; Reinforcing rib (3) is fixed between the corner plastering structure and the handle body (2) to increase the connection strength between the corner plastering structure and the handle body (2); The telescopic rod includes at least two sleeves (41), each sleeve (41) is coaxially arranged and slidably connected in sequence; a first locking structure (42) is provided between each two adjacent sleeves (41), and each first locking structure (42) is configured to unlock and / or lock the two adjacent sleeves (41).

2. The corner finishing tool for walls according to claim 1, characterized in that, The first locking structure (42) includes two positioning pins (421), which are symmetrically arranged and movably installed at one end of one of the sleeves (41). Each sleeve (41) has a pair of positioning holes (411). The two positioning pins (421) are configured to extend and retract radially along the sleeve (41) to engage or disengage with the pair of positioning holes (411) on the adjacent sleeve (41).

3. A tool for finishing and smoothing the external corners of a wall according to claim 2, characterized in that, The first locking structure (42) further includes an elastic element (422) connected between the two positioning pins (421). The elastic element (422) is configured to drive the two positioning pins (421) to slide radially along the sleeve (41) so that the two positioning pins (421) extend out of the sleeve (41) and engage with the positioning hole pair (411) on the adjacent sleeve (41), or retract into the sleeve (41) and disengage from the positioning hole pair (411) on the adjacent sleeve (41).

4. A tool for finishing and smoothing the external corners of a wall according to claim 2, characterized in that, The number of the positioning hole pairs (411) is two or more, and each positioning hole pair (411) is evenly distributed along the axial direction of the sleeve (41).

5. A tool for finishing and smoothing the external corners of a wall according to claim 1, characterized in that, It also includes a connecting component, which includes a connecting rod (51), a first connecting structure (52) and a second connecting structure (53). One end of the connecting rod (51) is detachably connected to one end of the telescopic rod through the first connecting structure (52), and the other end of the connecting rod (51) is detachably connected to the handle body (2) through the second connecting structure (53).

6. A tool for finishing and smoothing the external corners of a wall according to claim 5, characterized in that, The first connecting structure (52) includes an external threaded cylinder (521) and an internal threaded cylinder (522). The external threaded cylinder (521) is coaxially fixedly sleeved on the outer wall of one end of the telescopic rod. One end of the internal threaded cylinder (522) is coaxially fixedly sleeved on one end of the connecting rod (51). The other end of the internal threaded cylinder (522) is configured to be threadedly engaged with the external threaded cylinder (521).

7. A tool for finishing and smoothing the external corners of a wall according to claim 5, characterized in that, The second connection structure (53) includes a mounting plate (531) and a connecting plate (532). A U-shaped groove (5311) is formed on the mounting plate (531). The handle body (2) passes through the U-shaped groove (5311). A second locking structure (533) is provided between the two side walls of the U-shaped groove (5311). The second locking structure (533) is used to lock the handle body (2) in the U-shaped groove (5311). The connecting plate (532) is obliquely fixed on the mounting plate (531). The other end of the connecting rod (51) is vertically fixed on the connecting plate (532).

8. A tool for finishing and smoothing the external corners of a wall according to claim 7, characterized in that, The second locking structure (533) includes a threaded rod (5331), and mounting holes (5312) are formed on both sides of the U-shaped groove (5311). One end of the threaded rod (5331) is fixed with a limit block, and the other end is threaded through the two mounting holes (5312) and threaded with a nut (5332).

9. A tool for finishing and smoothing the external corners of a wall according to claim 1, characterized in that, The corner plastering structure includes two plastering panels (11), with one side of the two plastering panels (11) fixed together to form a working surface that can be adapted to the corner of the wall. The handle body (2) is parallel to the side of the two plastering panels (11) that is fixed together, and the reinforcing rib (3) is fixed between the handle body (2) and the side of the two plastering panels (11) that is fixed together.

10. A tool for finishing and smoothing the external corners of a wall according to claim 1, characterized in that, The other end of the telescopic rod is fitted with a rubber buffer sleeve (6).

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