Plastering device suitable for wall corners

Abstract

The invention discloses a plastering device suitable for wall corners. The plastering device comprises a transmission part and a plastering part, the cross shaft comprises a first end and a second end, and the cross shaft is fixedly connected to the transmission part; the driven part is fixedly connected to the cross shaft and located on the side, away from the transmission part, of the cross shaft; the first spring set is fixedly connected to the first end and located between the transmission part and the first end. The second spring set is fixedly connected to the second end and located on the side, away from the first spring set, of the cross shaft, and the second spring set is located between the transmission part and the first end. When the transmission part rotates around the first end, the first spring set elastically deforms, if the transmission part stops rotating and is not subjected to external force, the first spring set recovers to the natural state, and when the transmission part rotates around the second end, the second spring set elastically deforms, and if the transmission part stops rotating and is not subjected to external force, the second spring set recovers to the natural state.

Description

Technical Field

[0001] The invention relates to the field of wall construction, and in particular to a plastering device suitable for wall corners. Background Art

[0002] With the development of urbanization, the scale of construction and decoration is getting larger and larger, and the requirements for wall processing efficiency and quality inside buildings are getting higher and higher. Among them, plastering at the corners of the wall is one of the many wall processing methods.

[0003] There are various corner plastering devices on the market, some of which are equipped with direction adjustment devices to facilitate users to adjust the plastering direction when plastering ceiling corners on the escalator, avoiding the problem of changing the placement of the escalator and the user's misalignment. However, these plastering devices will retain the previous plastering angle after processing the current wall. When plastering a wall at another angle, the user needs to manually reset and adjust the plastering angle again, which poses certain safety hazards to people working on the escalator, and repeated manual resets will increase the difficulty of plastering and the time-consuming operation of the user.

[0004] Therefore, it is necessary to provide a plastering device suitable for wall corners that can improve plastering efficiency and effectively plaster the wall corners. Summary of the invention

[0005] The purpose of the present application is to provide a plastering device suitable for wall corners that can improve plastering efficiency and effectively plaster wall corners.

[0006] According to one aspect of the present application, a plastering device suitable for a wall corner is provided, the plastering device comprising:

[0007] Transmission unit;

[0008] A cross shaft, comprising a first end and a second end, wherein the cross shaft is fixedly connected to the transmission part;

[0009] A driven part, fixedly connected to the cross shaft and located on a side of the cross shaft away from the transmission part;

[0010] A first spring group, fixedly connected to the first end and located between the transmission part and the first end;

[0011] A second spring group, fixedly connected to the second end and located on a side of the cross shaft away from the first spring group, the second spring group being located between the transmission portion and the first end;

[0012] Among them, when the transmission part rotates around the first end, the first spring group undergoes elastic deformation. If the rotation stops and is not subjected to external force, the first spring group returns to a natural state. When the transmission part rotates around the second end, the second spring group undergoes elastic deformation. If the rotation stops and is not subjected to external force, the second spring group returns to a natural state.

[0013] More preferably, the transmission part and the driven part are integrally formed with an end hole, through which the transmission part is fixedly connected to the first end, and the driven part is fixedly connected to the second end.

[0014] More preferably, when the transmission part rotates in a first direction on the first end, one spring in the first spring group is compressed and the other spring is stretched, and when the driven part rotates in a second direction on the second end, one spring in the second spring group is compressed and the other spring is stretched.

[0015] More preferably, a first spring seat is integrally formed on the transmission part, the first spring group is fixedly connected to the first spring seat, and the first spring group is fixed between the transmission part and the first end through the first spring seat.

[0016] More preferably, a second spring seat is integrally formed on the driven part, and the second spring group is fixedly connected to the second spring seat, and the second spring group is fixed between the driven part and the second end head through the second spring seat.

[0017] More preferably, the plastering device further comprises:

[0018] A plastering plate, provided with a fixing portion, the plastering plate being located on a side of the driven portion away from the cross axis;

[0019] The driven part is integrally formed with a fixing hole, and the plastering plate is fixedly connected to the driven part by inserting the fixing part into the fixing hole.

[0020] More preferably, the plastering device further comprises:

[0021] A hand-held part, provided with a slot, the hand-held part is located on a side of the transmission part surrounded by the cross axis;

[0022] The transmission part is integrally formed with a latch, and the latch is engaged with the slot, so that the hand-held part is fixedly connected to the transmission part.

[0023] More preferably, a plastering surface is provided on one side of the plastering board and is located on the side of the plastering board away from the driven part, and the plastering surface is flat and smooth so as to evenly plaster the wall surface.

[0024] More preferably, when the transmission part rotates to a limit stroke, the hand-held part is perpendicular to the first surface formed by the plastering board.

[0025] More preferably, the plastering board provided with the plastering surface having different textures can be replaced according to the material of different wall surfaces or construction requirements.

[0026] The present invention has the following beneficial effects:

[0027] By restoring the natural state when the transmission part and the driven part stop rotating and are not subjected to external force after the first spring group and the second spring group are elastically deformed, the plastering device is automatically reset, thereby improving the efficiency of plastering. In addition, by adopting a method in which the transmission part and the driven part rotate around the first end and the second end on the cross axis respectively, the plastering device can freely adjust the angle and can effectively plaster the corners of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of a plastering device according to an embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of a three-dimensional exploded structure between the transmission part, the cross shaft and the driven part in the plastering device according to one embodiment of the present application;

[0031] Figure 3 It is a cross-sectional schematic diagram of a plastering device according to an embodiment of the present application when the transmission part and the cross shaft are fixedly connected;

[0032] Figure 4 It is a cross-sectional schematic diagram of a plastering device according to an embodiment of the present application when the driven part and the cross shaft are fixedly connected;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the plastering board in the plastering device described in one embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of the planar structure of the handheld portion of the plastering device described in one embodiment of the present application.

[0035] Explanation of the accompanying drawings: 100, plastering device; 10, transmission part; 11, first spring seat; 12, latch; 20, cross shaft; 21, first end; 22, second end; 30, driven part; 31, second spring seat; 32, fixing hole; 40, first spring group; 50, second spring group; 60, plastering plate; 61, fixing part; 62, plastering surface; 70, hand-held part; 71, slot; 80, end hole; F1, first direction; F2, second direction; S1, first surface. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] Please refer to Figure 1 - Figure 6 In one embodiment of the present application, there is provided a plastering device 100 suitable for use at a wall corner. The plastering device 100 comprises: a transmission part 10, a cross shaft 20, a driven part 30, a first spring group 40 and a second spring group 50.

[0040] The cross shaft 20 includes a first end 21 and a second end 22, and the cross shaft 20 is fixedly connected to the transmission part 10. The driven part 30 is fixedly connected to the cross shaft 20 and is located at a side of the cross shaft 20 away from the transmission part 10. The first spring group 40 is fixedly connected to the first end 21 and is located between the transmission part 10 and the first end 21. The second spring group 50 is fixedly connected to the second end 22 and is located at a side of the cross shaft 20 away from the first spring group 40, and the second spring group 50 is located between the transmission part 10 and the first end 21. When the transmission part 10 rotates around the first end 21, the first spring group 40 undergoes elastic deformation. If the rotation stops and is not subjected to external force, the first spring group 40 returns to a natural state. When the transmission part 10 rotates around the second end 22, the second spring group 50 undergoes elastic deformation. If the rotation stops and is not subjected to external force, the second spring group 50 returns to a natural state.

[0041] Among them, by setting a cross shaft 20 and two groups of springs, the transmission part 10 and the driven part 30 of the plastering device 100 can rotate around the cross shaft 20. This design allows the device to flexibly adjust the posture of the plastering plate 60 according to the different angles at the corners of the wall, and adapt to the corners of the wall at various angles. This enhances the adaptability of the device in irregular or complex wall construction. The setting of the spring group can reset the plastering plate 60 to its original position after the rotation stops. This is because the spring undergoes elastic deformation when it is rotated, and when the rotation stops and is no longer subjected to force, the spring will rebound to a natural state and restore the device to its initial working position. This design can reduce the complexity of the construction personnel's operation, and there is no need to manually adjust the device to the original position, which greatly improves work efficiency. Since the spring group can absorb and release energy during the rotation process, it can provide a certain buffer when the plastering plate 60 is adjusted, avoid rotating too fast or uneven force, ensure that the plastering process is smoother, and thus improve the quality and uniformity of the plastering. The rebound function of the spring group when the rotation stops can reduce errors in operation, prevent the plastering board 60 from causing uneven plastering or excessive contact with the wall due to excessively large or small angles, and ensure that the plastering work at the corners is more accurate.

[0042] More preferably, the transmission part 10 and the driven part 30 are integrally formed with an end hole 80 , through which the transmission part 10 is fixedly connected to the first end 21 , and the driven part 30 is fixedly connected to the second end 22 .

[0043] Among them, by providing an integrally formed end hole 80 on the transmission part 10 and the driven part 30, and firmly connecting them with the end of the cross shaft 20, the overall structural stability of the device can be effectively enhanced. Such a design ensures that the transmission part 10 and the driven part 30 will not loosen or deviate due to external force or long-term use, thereby improving the service life and reliability of the device. The integrally formed design simplifies the structure of the device, and directly combines the end hole 80 with the transmission part 10 and the driven part 30, avoiding complex connection components. This simplified design not only reduces the production cost, but also reduces the difficulty of assembly and maintenance, and improves the production efficiency of the device. The transmission part 10 and the driven part 30 are fixedly connected through the end hole 80, which can ensure the effective transmission of force during operation. The rotation of the cross shaft 20 can be directly transmitted to the transmission part 10 and the driven part 30 through the end hole 80, thereby realizing the stable movement of the plastering board 60. This direct connection method reduces energy loss and ensures the accuracy and efficiency of operation. Since the transmission part 10 and the driven part 30 are firmly connected through the end hole 80, during operation, the transmission part 10 can better control the movement angle of the plastering plate 60 when rotating, avoiding plastering errors caused by loose connections and improving the uniformity and accuracy of plastering.

[0044] More preferably, when the transmission part 10 rotates along the first direction F1 on the first end 21, one spring in the first spring group 40 is compressed and the other spring is stretched, and when the driven part 30 rotates along the second direction F2 on the second end 22, one spring in the second spring group 50 is compressed and the other spring is stretched.

[0045] Among them, when the transmission part 10 rotates in one direction on the first end 21, one spring is compressed and the other spring is stretched, forming a symmetrical force action. Such a design can ensure that the forces between the spring groups are balanced during the rotation process, and there will be no instability caused by excessive force on one side. This force balance improves the stability of the device during operation and avoids the unevenness of the plastering surface 62 caused by uneven force. While one spring is compressed, the other spring is stretched, which means that the two springs are in different stress states respectively. Such a design helps to improve the overall elastic recovery efficiency of the spring group. When the rotation stops, the compression spring will rebound quickly and the tension spring will also return to its original state. This bidirectional elastic deformation ensures that the device can be quickly and smoothly reset after stopping the operation. Through this design combining compression and stretching, the device can adapt to a larger rotation angle range. For example, when the plastering board 60 works at different angles in the corner, the relative angle change of the transmission part 10 and the driven part 30 will cause the different springs in the spring group to deform. The alternating changes of compression and tension ensure that the plastering plate 60 can work smoothly at different angles, expanding the application range of the device. This design reduces fatigue damage caused by excessive compression or tension of a single spring, and by evenly distributing the force, each spring can be better protected during work, extending the service life of the spring group and the entire device.

[0046] More preferably, a first spring seat 11 is integrally formed on the transmission part 10 , and the first spring group 40 is fixedly connected to the first spring seat 11 . Through the first spring seat 11 , the first spring group 40 is fixed between the transmission part 10 and the first end head 21 .

[0047] Among them, the first spring seat 11 provides a special support structure to firmly fix the spring group between the transmission part 10 and the first end 21, so as to prevent the first spring group 40 from being displaced or loosened during use. Through the integrally formed first spring seat 11, the first spring group 40 can be more firmly maintained in the specified position, ensuring that the device still has consistent performance during long-term operation. The existence of the first spring seat 11 makes the force distribution of the first spring group 40 more uniform, effectively improving the deformation response ability of the spring during compression and tension. This design can make the force transmission of the spring more direct and efficient, thereby improving the working efficiency of the entire device, especially when the transmission part 10 rotates, the elastic reset function of the spring group can be better exerted. The first spring seat 11 can effectively transmit the force of the first spring group 40 between the transmission part 10 and the first end 21, ensuring the accuracy and efficiency of force transmission. The first spring group 40 is fixed in a relatively stable position by the first spring seat 11, so that when the transmission part 10 rotates, the force distribution is more uniform, thereby avoiding the problem of uneven force transmission caused by position offset of the spring group.

[0048] More preferably, a second spring seat 31 is integrally formed on the driven part 30 , and the second spring group 50 is fixedly connected to the second spring seat 31 . Through the second spring seat 31 , the second spring group 50 is fixed between the driven part 30 and the second end head 22 .

[0049] The advantages generated by the interaction between the first spring seat 11 and the first spring group 40 as described above are also similar to the advantages generated by the interaction between the second spring group 50 and the second spring seat 31 .

[0050] Preferably, the plastering device 100 further includes a plastering plate 60. The plastering plate 60 is provided with a fixing portion 61, and the plastering plate 60 is located on a side of the driven portion 30 away from the cross shaft 20. The driven portion 30 is integrally formed with a fixing hole 32, and the plastering plate 60 is fixedly connected to the driven portion 30 by inserting the fixing portion 61 into the fixing hole 32.

[0051] Among them, the plastering plate 60 is tightly connected to the driven part 30 through the fixing hole 32 to ensure the stability of the plastering plate 60 during operation. Such a connection method can prevent the plastering plate 60 from loosening due to vibration or force during use, thereby ensuring the consistency of the plastering effect. By setting the fixing part 61 on the plastering plate 60 and the fixing hole 32 design with the driven part 30, the user can easily disassemble and replace the plastering plate 60. It can be replaced quickly, which improves the adaptability and flexibility of the device. The plastering plate 60 is located on the side of the driven part 30 away from the cross shaft 20, and can contact the wall more effectively when rotating, reducing the limitation of the operating angle during the plastering process. This setting makes the plastering process smoother and improves the overall construction efficiency.

[0052] Preferably, the plastering device 100 further includes a handheld portion 70. The handheld portion 70 is provided with a slot 71, and the handheld portion 70 is located on the side of the transmission portion 10 that is surrounded by the cross shaft 20. The transmission portion 10 is integrally formed with a latch 12, and the handheld portion 70 is fixedly connected to the transmission portion 10 by the slot 71 being engaged with the latch 12.

[0053] Among them, the design of the handheld part 70 enables the user to hold the device firmly during operation, providing a better sense of control. Through the engagement of the latch 12 with the slot 71, the handheld part 70 forms a stable connection with the transmission part 10, ensuring that the device will not accidentally slide or loosen when force is applied, thereby improving the safety and reliability of use. The connection method of the slot 71 and the latch 12 can facilitate users to quickly disassemble and replace the handheld part 70. This design allows the device to adjust the style or function of the handheld part 70 as needed in different application scenarios, thereby enhancing the flexibility of the device. The design of the integrally formed latch 12 and the slot 71 of the handheld part 70 simplifies the number of connecting parts and reduces the need for additional fixings. This not only reduces production costs, but also simplifies the assembly and maintenance process, making the device easier to use. The design of the handheld part 70 can be optimized according to the user's holding habits, making it more ergonomic and reducing the fatigue of the user's hands during long-term operation. The stable connection method ensures that a good grip can still be maintained during high-intensity operations. The stable connection between the hand-held part 70 and the transmission part 10 can improve the accuracy of the operation, especially when performing detailed plastering work, the user can better control the strength and direction to ensure the quality and effect of the plastering.

[0054] More preferably, a plastering surface 62 is provided on one side of the plastering board 60 and is located on the side of the plastering board 60 away from the driven part 30 , and the plastering surface 62 is flat and smooth so as to evenly plaster the wall surface.

[0055] Among them, the flat and smooth design of the plastering surface 62 can ensure that the plastering can be evenly applied to the wall surface during plastering, reducing the problems of unevenness, ripples or bubbles. This can improve the aesthetics and professionalism of the final wall effect. The plastering surface 62 is located on the side away from the driven part 30, so that the user can easily directly contact the plastering surface 62 to the wall surface during operation, which is convenient for force application and control. Such a design optimizes the working posture and makes the operation more natural and comfortable. The flat and smooth plastering surface 62 can adapt to different types of wall materials to ensure that a good plastering effect can be achieved on various surfaces. Whether it is a smooth paint wall or a rough concrete wall, it can be effectively covered. The smooth plastering surface 62 can also reduce friction during plastering and reduce the force required during construction, thereby improving operational efficiency. This design enables construction workers to complete the plastering work in a shorter time and improve the overall construction progress. The smooth surface is easier to clean after the construction is completed, avoiding the problem of residue or dust adhesion on the traditional rough surface. This makes maintenance and cleaning work after construction easier.

[0056] More preferably, when the transmission part 10 rotates to a limit stroke, the hand-held part 70 is perpendicular to the first surface S1 formed by the plastering board 60 .

[0057] Among them, the design of the handheld portion 70 being perpendicular to the plastering board 60 allows the user to maintain a comfortable holding posture when reaching the limit of travel. This design allows the user to better control the device and avoid fatigue or loss of control caused by unnatural postures. The vertical connection angle can enhance the stability of the plastering board 60 during operation and reduce tilting or imbalance. This helps to ensure the uniformity and accuracy of plastering, especially when dealing with corners or edges. When the handheld portion 70 is perpendicular to the plastering board 60, the user's hand is far away from the plastering surface 62, reducing the risk of hand injury caused by accidental contact with the plastering surface 62 during the plastering process. At the same time, the stable grip of the hand can effectively prevent the device from slipping. The vertical design of the handheld portion 70 allows the user to easily change the operating angle when reaching the limit of travel, which is convenient for handling plastering work in different positions. This flexibility improves work efficiency and reduces the difficulty of operation in a small space. The vertical design can also reduce the lateral friction of the device at the limit of travel, reduce the wear on the connecting parts, and extend the service life of the device.

[0058] More preferably, the plastering board 60 having the plastering surface 62 with different textures can be replaced according to different wall materials or construction requirements.

[0059] Among them, different wall materials (such as concrete, gypsum board, wood, etc.) have different requirements for plastering. The replaceable design enables the plastering board 60 to adapt to various wall materials, ensuring that each material can obtain the best plastering effect. Different construction projects may require different plastering effects, such as smooth surfaces, textured surfaces, decorative surfaces, etc. By replacing the plastering surface 62, construction personnel can select the appropriate texture according to specific requirements to achieve a variety of decorative effects. The replaceable plastering board 60 design enables construction personnel to quickly switch between different plastering surfaces 62 without replacing the entire device. This flexibility greatly improves construction efficiency, especially in projects where plastering effects need to be frequently adjusted. By replacing the plastering surface 62 instead of the entire plastering board 60, material costs and storage space can be saved. The construction team only needs to prepare a variety of plastering surfaces 62 without investing in multiple devices, thereby reducing overall expenses. By replacing the plastering surface 62, users can better meet aesthetic needs, create a more decorative and personalized wall effect, and enhance the visual appeal of the space.

[0060] By this, after the first spring group 40 and the second spring group 50 are elastically deformed, the natural state is restored when the transmission part 10 and the driven part 30 stop rotating and are not subjected to external force, so that the plastering device 100 is automatically reset, thereby improving the efficiency of plastering. In addition, the transmission part 10 and the driven part 30 are respectively rotated around the first end 21 and the second end 22 on the cross shaft 20, so that the plastering device 100 can freely adjust the angle and can effectively plaster the corners.

[0061] The above-mentioned embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application.

Claims

1. A plastering device suitable for wall corners, characterized in that: The plastering device comprises: Transmission unit; A cross shaft, comprising a first end and a second end, wherein the cross shaft is fixedly connected to the transmission part; A driven part, fixedly connected to the cross shaft and located on a side of the cross shaft away from the transmission part; A first spring group, fixedly connected to the first end and located between the transmission part and the first end; A second spring group, fixedly connected to the second end and located on a side of the cross shaft away from the first spring group, the second spring group being located between the transmission portion and the first end; Among them, when the transmission part rotates around the first end, the first spring group undergoes elastic deformation. If the rotation stops and is not subjected to external force, the first spring group returns to a natural state. When the transmission part rotates around the second end, the second spring group undergoes elastic deformation. If the rotation stops and is not subjected to external force, the second spring group returns to a natural state.

2. A plastering device suitable for wall corners according to claim 1, characterized in that: The transmission part and the driven part are integrally formed with an end hole, through which the transmission part is fixedly connected to the first end, and the driven part is fixedly connected to the second end.

3. A plastering device suitable for wall corners according to claim 2, characterized in that: When the transmission part rotates on the first end in a first direction, one spring in the first spring group is compressed and the other spring is stretched; when the driven part rotates on the second end in a second direction, one spring in the second spring group is compressed and the other spring is stretched.

4. A plastering device suitable for wall corners according to claim 1, characterized in that: A first spring seat is integrally formed on the transmission part, and the first spring group is fixedly connected to the first spring seat. The first spring group is fixed between the transmission part and the first end head through the first spring seat.

5. A plastering device suitable for wall corners according to claim 1, characterized in that: The driven part is integrally formed with a second spring seat, the second spring group is fixedly connected to the second spring seat, and the second spring group is fixed between the driven part and the second end head through the second spring seat.

6. A plastering device suitable for wall corners according to claim 1, characterized in that: The plastering device also includes: A plastering plate is provided with a fixing portion, and the plastering plate is located on a side of the driven portion away from the cross axis; The driven part is integrally formed with a fixing hole, and the plastering plate is fixedly connected to the driven part by inserting the fixing part into the fixing hole.

7. A plastering device suitable for wall corners according to claim 6, characterized in that: The plastering device also includes: A hand-held part, provided with a slot, the hand-held part is located on a side of the transmission part surrounded by the cross axis; The transmission part is integrally formed with a latch, and the latch is engaged with the slot, so that the hand-held part is fixedly connected to the transmission part.

8. A plastering device suitable for wall corners according to claim 1, characterized in that: A plastering surface is provided on one side of the plastering board and is located on the side of the plastering board away from the driven part. The plastering surface is flat and smooth so as to evenly plaster the wall surface.

9. A plastering device suitable for wall corners according to claim 7, characterized in that: When the transmission part rotates to a limit stroke, the hand-held part is perpendicular to the first surface formed by the plastering board.

10. A plastering device suitable for wall corners according to claim 8, characterized in that: The plastering board with the plastering surface having different textures can be replaced according to different wall materials or construction requirements.

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