A plastering tool
By introducing an adjustment mechanism and limit screws into the plastering tool, the problem of the maximum angle of the plate and the blocking part being unable to be lowered was solved, which improved the plastering quality and made the base plate easy to replace, thus reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 8 ENG GRP CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-03
AI Technical Summary
In existing plastering tools, the maximum angle of the board and the blocking part cannot be reduced, which makes it impossible to limit the volume of mortar in the triangular groove. This leads to mortar accumulation during the plastering process, excessively thick plaster on some parts of the wall, and reduced plastering quality.
By incorporating an adjustment mechanism in the plastering tool, including a fixed cylinder, a screw cylinder, a spring, and an adjusting bolt, the adjusting bolt pushes the connecting plate to rotate the blocking part, reducing the maximum rotation angle. Combined with the limit screw to fix the plastering base plate, the volume of slurry in the triangular groove is limited, preventing slurry accumulation.
It effectively limits the volume of slurry in the triangular groove, avoids excessively thick plastering on some parts of the wall, improves plastering quality, and facilitates the replacement of plastering base plates, thus reducing maintenance costs.
Smart Images

Figure CN224452182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastering tools, specifically a plastering tool. Background Technology
[0002] In building decoration and renovation projects, plastering is a crucial basic process. Plastering refers to applying plastering mortar to the surface of a base material, and a plaster trowel is a common plastering tool.
[0003] Chinese utility model patent application number 202121675615.6 describes a plastering device for home decoration. This device effectively prevents mortar from leaking out from both sides of the slab, thus improving mortar utilization and plastering efficiency. It also allows mortar to be scooped from the mortar trough and placed into a triangular groove formed by the blocking part and the slab without the need for additional tools. While convenient to use, the maximum angle between the slab and the blocking part cannot be lowered, preventing the limitation of the maximum plastering angle. This makes it impossible to limit the volume of mortar in the triangular groove. When there is too much mortar in the triangular groove, mortar accumulation can easily occur during plastering, leading to excessively thick plaster on certain parts of the wall and reducing the quality of the plastering. Utility Model Content
[0004] The purpose of this utility model is to provide a plastering tool to solve the problem mentioned in the background art that the maximum angle of the plate and the blocking part cannot be reduced, so the maximum angle of plastering cannot be limited, and thus the volume of slurry in the triangular groove cannot be limited. When there is too much slurry in the triangular groove, slurry accumulation is easy to occur during the plastering process, resulting in excessively thick plastering on some parts of the wall, thereby reducing the plastering quality of the plastering trowel.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastering tool comprising a plate, a blocking part rotatably connected to the surface of the plate, a handle fixedly connected to the surface of the plate, an adjustment mechanism provided on the surface of the blocking part, the adjustment mechanism comprising a fixed cylinder, the fixed cylinder being fixedly connected to the surface of the blocking part, a screw cylinder being fixedly connected to the surface of the fixed cylinder, a spring being engaged with the surface of the fixed cylinder, an adjusting bolt being fixedly threadedly connected to the surface of the screw cylinder, a connecting plate being fixedly connected to the surface of the plate, a connecting cylinder being fixedly connected to the surface of the connecting plate, the end of the spring away from the fixed cylinder being engaged with the connecting cylinder, and a plastering base plate being fixedly installed at the bottom of the plate.
[0006] Preferably, the bottom of the plate is provided with an installation mechanism, the installation mechanism includes an installation groove, the installation groove is opened at the bottom of the plate, a locking block is inserted into the installation groove, the plaster base plate is fixedly connected to the bottom of the locking block, and threaded grooves are opened on both sides of the locking block, and limit screws are threadedly connected to the threaded grooves.
[0007] Preferably, a triangular groove is formed between the plate and the blocking part, the fixed cylinder and the connecting cylinder have the same diameter, the two ends of the spring are respectively engaged and connected to the fixed cylinder and the connecting cylinder, and the elastic force of the spring acts on the connecting plate through the connecting cylinder.
[0008] Preferably, the connecting plate is L-shaped and rotates with the plate body on the surface of the blocking part. A limit plate is provided at the top of the blocking part, and the top of the plate body rotates under the elastic force of the spring to contact the limit plate of the blocking part.
[0009] Preferably, a circular hole is formed on the surface of the connecting plate, and the diameter of the circular hole in the connecting plate is larger than the diameter of the screw barrel. The adjusting bolt passes through the circular hole in the connecting plate and is threadedly connected to the screw barrel.
[0010] Preferably, the mounting groove and the locking block restrict the position of the plastering base plate at the bottom of the board body, the length of the plastering base plate is the same as the length of the board body, and the bottom of the plastering base plate is in contact with the bottom of the board body.
[0011] Preferably, the mounting groove has circular holes on both sides, and the limiting screw passes through the circular holes and threaded grooves on both sides of the mounting groove for threaded connection.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This plastering tool, by rotating the adjusting bolt on the surface of the screw cylinder, allows the adjusting bolt to push the connecting plate, causing the blocking part to rotate on the plate. The connecting cylinder on the connecting plate compresses the spring, causing it to deform. Under the restriction of the adjusting bolt, the maximum rotation angle of the plate on the blocking part is reduced, and the maximum volume of the triangular groove between the plate and the blocking part is reduced. This limits the volume of mortar in the triangular groove between the plate and the blocking part, preventing excessively thick local plastering on the wall surface, thereby improving the plastering quality of the plastering trowel.
[0014] 2. This plastering tool involves inserting the locking block into the mounting groove to position the plastering base plate at the bottom of the board. Then, the limiting screws are passed through the circular holes on both sides of the mounting groove. At this time, the limiting screws are threaded into the threaded grooves on both sides of the bottom of the board. The limiting screws rotate the locking block in the mounting groove, thereby restricting the plastering base plate at the bottom of the board, completing the installation of the plastering base plate at the bottom of the board. This allows the plastering base plate to be replaced at the bottom of the board. When the plastering base plate is damaged, only the plastering base plate needs to be replaced, reducing maintenance costs. Attached Figure Description
[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0016] Figure 2 This is a three-dimensional rear view of the structure of this utility model;
[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;
[0018] Figure 4 This is a rear sectional perspective view of the connecting plate structure of this utility model;
[0019] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B;
[0020] Figure 6 This is a three-dimensional schematic diagram of the bottom structure of the plate body of this utility model, viewed from the front and from below.
[0021] In the diagram: 1. Plate; 11. Block; 12. Handle; 2. Fixing cylinder; 21. Screw; 22. Spring; 23. Adjusting bolt; 24. Connecting plate; 25. Connecting cylinder; 3. Mounting groove; 31. Locking block; 32. Plaster base plate; 33. Threaded groove; 34. Limit screw. Detailed Implementation
[0022] Please see Figure 1-6 One embodiment provided by this utility model:
[0023] A plastering tool includes a plate body 1, a blocking part 11 rotatably connected to the surface of the plate body 1, a handle 12 fixedly connected to the surface of the plate body 1, an adjustment mechanism provided on the surface of the blocking part 11, the adjustment mechanism including a fixed cylinder 2, the fixed cylinder 2 fixedly connected to the surface of the blocking part 11, a screw cylinder 21 fixedly connected to the surface of the fixed cylinder 2, a spring 22 engaged on the surface of the fixed cylinder 2, an adjusting bolt 23 threadedly connected to the surface of the screw cylinder 21, a connecting plate 24 fixedly connected to the surface of the plate body 1, a connecting cylinder 25 fixedly connected to the surface of the connecting plate 24, and a spring 25. 2. The end away from the fixed cylinder 2 is engaged with the connecting cylinder 25. The bottom of the plate 1 is fixedly installed with a plastering base plate 32. The blocking part 11 is placed against the wall. At this time, the plate 1 can rotate on the blocking part 11. When moving the plate 1, the mortar on the plate 1 can be applied to the wall. The blocking part 11 can cover the plastering of the plate 1 to avoid side leakage. The adjustment mechanism can reduce the maximum angle of the plate 1 on the blocking part 11 and limit the volume of mortar in the triangular groove between the plate 1 and the blocking part 11 to avoid excessive local plastering on the wall, thereby improving the plastering quality of the plastering trowel.
[0024] Furthermore, the bottom of the panel 1 is provided with an installation mechanism, which includes an installation groove 3. The installation groove 3 is opened at the bottom of the panel 1, and a locking block 31 is inserted into the installation groove 3. The plaster base plate 32 is fixedly connected to the bottom of the locking block 31. Threaded grooves 33 are opened on both sides of the locking block 31, and limit screws 34 are threadedly connected to the threaded grooves 33. The installation mechanism can install and remove the plaster base plate 32, and replace it after the plaster base plate 32 is damaged, thereby reducing maintenance costs.
[0025] Furthermore, a triangular groove is formed between the plate 1 and the blocking part 11. The blocking part 11 is triangular in shape and has a fan-shaped cross section. The triangular groove of the plate 1 and the blocking part 11 is used to place mud for plastering. The fixed cylinder 2 and the connecting cylinder 25 have the same diameter. The two ends of the spring 22 are respectively engaged and connected to the fixed cylinder 2 and the connecting cylinder 25. The elastic force of the spring 22 acts on the connecting plate 24 through the connecting cylinder 25.
[0026] Furthermore, the connecting plate 24 is L-shaped and rotates with the plate 1 on the surface of the blocking part 11. A limiting plate is provided at the top of the blocking part 11. Under the elastic force of the spring 22, the top of the plate 1 rotates to contact and connect with the limiting plate of the blocking part 11. At this time, the triangular groove of the plate 1 and the blocking part 11 has the largest volume and can hold the largest amount of slurry for plastering.
[0027] Furthermore, a circular hole is provided on the surface of the connecting plate 24, and the diameter of the circular hole of the connecting plate 24 is larger than the diameter of the screw barrel 21. The adjusting bolt 23 passes through the circular hole of the connecting plate 24 and is threadedly connected to the screw barrel 21. The tail of the adjusting bolt 23 contacts the surface of the connecting plate 24. When the screw barrel 21 rotates, the adjusting bolt 23 changes its position on the screw barrel 21. The adjusting bolt 23 can squeeze the connecting plate 24 through the screw barrel 21, so that the plate 1 rotates on the blocking part 11. The connecting cylinder 25 on the connecting plate 24 squeezes the spring 22 to deform it. At this time, the maximum rotation angle of the plate 1 on the blocking part 11 is reduced. The triangular groove of the plate 1 and the blocking part 11 can receive more precise slurry and avoid excessive plastering.
[0028] Furthermore, the mounting groove 3 and the locking block 31 restrict the position of the plastering base plate 32 at the bottom of the plate body 1. The length of the plastering base plate 32 is the same as the length of the plate body 1, and the bottom of the plastering base plate 32 is in contact with the bottom of the plate body 1. The plastering base plate 32 is installed at the bottom of the plate body 1 for plastering. Since the plastering base plate 32 has too much contact with the wall surface, it is easy to be damaged and needs to be replaced.
[0029] Furthermore, circular holes are provided on both sides of the mounting groove 3. The circular holes are located at the bottom of both sides of the plate 1. The limiting screw 34 passes through the circular holes on both sides of the mounting groove 3 and is threadedly connected to the threaded groove 33. The limiting screw 34 restricts the locking block 31 on the mounting groove 3 on the plate 1, thereby restricting the plaster base plate 32 at the bottom of the plate 1.
[0030] Working principle: Rotating the adjusting bolt 23 on the surface of the screw cylinder 21 causes the adjusting bolt 23 to push the connecting plate 24, which in turn causes the blocking part 11 to rotate on the plate body 1. The connecting cylinder 25 on the connecting plate 24 compresses the spring 22, causing it to deform. Under the restriction of the adjusting bolt 23, the maximum rotation angle of the plate body 1 on the blocking part 11 is reduced, and the maximum volume of the triangular groove between the plate body 1 and the blocking part 11 is reduced. This limits the volume of mortar in the triangular groove between the plate body 1 and the blocking part 11, preventing excessive local plastering on the wall surface, thereby improving the plastering quality of the plastering trowel.
[0031] Insert the locking block 31 into the mounting groove 3 to position the plaster base plate 32 at the bottom of the plate 1. Then, pass the limiting screw 34 through the circular holes on both sides of the mounting groove 3. At this time, the limiting screw 34 is threaded into the threaded groove 33 on both sides of the bottom of the plate 1. The limiting screw 34 rotates the locking block 31 in the mounting groove 3 on the plate 1, thereby restricting the plaster base plate 32 at the bottom of the plate 1, completing the installation of the plaster base plate 32 at the bottom of the plate 1. This allows the plaster base plate 32 to be replaced at the bottom of the plate 1. If the plaster base plate 32 is damaged, only the plaster base plate 32 needs to be replaced, reducing maintenance costs.
Claims
1. A trowel tool, characterized by: The device includes a plate body, a blocking part rotatably connected to the surface of the plate body, a handle fixedly connected to the surface of the plate body, an adjustment mechanism provided on the surface of the blocking part, the adjustment mechanism including a fixed cylinder, the fixed cylinder being fixedly connected to the surface of the blocking part, a screw cylinder being fixedly connected to the surface of the fixed cylinder, a spring being engaged with the surface of the fixed cylinder, an adjusting bolt being fixedly threaded with the surface of the screw cylinder, a connecting plate being fixedly connected to the surface of the plate body, a connecting cylinder being fixedly connected to the surface of the connecting plate, the end of the spring away from the fixed cylinder being engaged with the connecting cylinder, and a plastering base plate being fixedly installed at the bottom of the plate body.
2. A trowel according to claim 1, wherein: The bottom of the plate is provided with an installation mechanism, which includes an installation groove. The installation groove is opened at the bottom of the plate, and a locking block is inserted into the installation groove. The plaster base plate is fixedly connected to the bottom of the locking block. Threaded grooves are opened on both sides of the locking block, and limit screws are threadedly connected to the threaded grooves.
3. A trowel according to claim 1, wherein: A triangular groove is formed between the plate and the blocking part. The fixed cylinder and the connecting cylinder have the same diameter. The two ends of the spring are respectively engaged and connected to the fixed cylinder and the connecting cylinder. The elastic force of the spring acts on the connecting plate through the connecting cylinder.
4. A trowel according to claim 1, wherein: The connecting plate is L-shaped and rotates with the plate body on the surface of the blocking part. A limit plate is provided at the top of the blocking part. The top of the plate body rotates under the elastic force of the spring to contact the limit plate of the blocking part.
5. A plastering tool according to claim 4, characterized in that: A circular hole is provided on the surface of the connecting plate, and the diameter of the circular hole of the connecting plate is larger than the diameter of the screw cylinder. The adjusting bolt passes through the circular hole of the connecting plate and is threadedly connected to the screw cylinder.
6. A trowel according to claim 2, wherein: The mounting groove and locking block restrict the position of the plastering base plate at the bottom of the board body. The length of the plastering base plate is the same as the length of the board body, and the bottom of the plastering base plate is in contact with the bottom of the board body.
7. A trowel according to claim 6, wherein: The mounting groove has circular holes on both sides, and the limiting screw passes through the circular holes and threaded grooves on both sides of the mounting groove for threaded connection.