Split type plastering trowel

Abstract

The utility model discloses a split type plastering trowel which comprises a holding part and a trowel board, a positioning column is arranged on the trowel board, the holding part is connected with a connecting base, an inserting hole for the positioning column to be inserted is formed in the connecting base, a movable strip with a positioning hole and a shifting rod used for shifting the movable strip and rotationally connected to the connecting base are arranged on the connecting base, and the shifting rod is connected with the connecting base. The positioning column can be inserted into the positioning hole, the movable strip can be shifted by the shifting rod to move, and the movable strip comprises a locking position where the side wall of the positioning hole is matched with the side wall of the inserting hole to clamp the positioning column and a loosening position where the positioning column is loosened after being shifted by the shifting rod. According to the split type plastering trowel, the side wall of the positioning hole and the side wall of the inserting hole can be matched to clamp the positioning column or loosen the positioning column through shifting of the shifting rod, the split type plastering trowel can be normally used in the state that the positioning column is clamped, and the trowel board can be replaced in the state that the positioning column is loosened, so that the trowel board can be replaced when the trowel board is abraded to a critical value; unnecessary loss is reduced, and the use cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of construction operation tools, specifically a split-type trowel. Background Technology

[0002] Traditional trowels typically consist of a grip with a predetermined curvature and a blade that contacts the work surface. The grip and blade are fixedly connected via a hydraulic stamping process. In practical applications, it has been found that the blade's working surface continuously withstands friction with the building substrate, resulting in a significantly higher wear rate than other components. When the effective working thickness of the blade reaches a critical value, although the grip retains its mechanical properties, the operator must replace the entire tool due to the existing non-removable integrated design. This construction not only causes unnecessary material waste but also increases maintenance costs for the user. Furthermore, long-term load testing shows that the hydraulically stamped connection is prone to microcracks under cyclic stress, exhibiting a technical defect where connection reliability decreases over time. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a detachable trowel. This detachable trowel allows for easy separation of the blade and the handle, enabling the blade to be replaced when it wears to a critical value, reducing unnecessary wear and lowering operating costs.

[0004] To solve the aforementioned technical problems, this utility model provides the following technical solution: a split-type trowel, comprising a gripping part and a blade plate, wherein a positioning post is provided on the blade plate, and a connecting seat is connected to the gripping part. The connecting seat has an insertion hole for inserting the positioning post, and a movable strip with a positioning hole and a lever rotatably connected to the connecting seat for moving the movable strip. The positioning hole allows the positioning post to be inserted, and the movable strip can be moved by the lever. The movable strip includes a locking position in which the side wall of the positioning hole and the side wall of the insertion hole cooperate to clamp the positioning post, and a releasing position in which the positioning post is released after being moved by the lever. This split-type trowel allows the side wall of the positioning hole to cooperate with the side wall of the insertion hole to clamp the positioning post, or to release the positioning post, by moving the lever. It can be used normally when the positioning post is clamped, and the blade plate can be replaced when the positioning post is released. This allows the blade plate to be replaced when it wears to a critical value, reducing unnecessary wear and lowering operating costs.

[0005] In the above technical solution, preferably, the positioning hole includes an insertion side larger than the positioning post and a positioning side smaller than the positioning post. This structure allows the positioning hole to contact the positioning post at multiple points when the movable strip is in the locked position, increasing friction and preventing the positioning post from disengaging.

[0006] In the above technical solution, preferably, the bottom of the lever is rotatably connected to the movable bar, and the lever is locked by the locking member when the movable bar is in the locked position.

[0007] In the above technical solution, preferably, the gripping part includes an upper gripping part and a lower gripping part. The upper gripping part is fixedly connected to the connecting seat, and the lower gripping part is rotatably connected to the connecting seat as a locking member. The lower gripping part is provided with a slot for the lever to be inserted and movably engaged. When the lower gripping part and the upper gripping part are gripped, the lower gripping part drives the lever to rotate and moves the movable bar to the locking position. This structure allows the movable bar to lock the blade plate when the lower gripping part and the upper gripping part are gripped.

[0008] In the above technical solution, preferably, the upper gripping part has a latch at its tail facing the lower gripping part, and the lower gripping part has an elastic buckle at its tail that engages with the latch. The elastic buckle is inserted into the latch to fix the lower gripping part and hold the movable strip in the locked position. This structure allows the elastic buckle to engage with the latch to fix the upper and lower gripping parts, ensuring that the blade plate is always locked when it does not need to be replaced.

[0009] In the above technical solution, preferably, the tail end of the buckle is provided with a through hole for inserting a pusher to push the elastic buckle to contact the lower gripping part for fixation. This structure facilitates pushing the elastic buckle to release the lower gripping part from its fixation, while also preventing accidental release of the lower gripping part from its fixation.

[0010] In the above technical solution, preferably, the connecting seat includes a connecting strip and a bent arm connected to the connecting strip. The bent arm has an installation gap, the movable strip is movably disposed at the bottom of the installation gap, and the lever is rotatably disposed within the installation gap. This structure makes the overall mechanism more stable.

[0011] In the above technical solution, preferably, the blade plate is provided with a plurality of positioning posts arranged in a straight line, the connecting seat is provided with a plurality of insertion holes adapted to the positioning posts, and the movable strip is provided with a plurality of positioning holes adapted to the positioning posts. This structure makes the positioning of the blade plate more stable.

[0012] Compared with the prior art, this utility model has the following advantages: This split-type trowel can make the side wall of the positioning hole and the side wall of the insertion hole clamp the positioning post by moving the lever, or loosen the positioning post. It can be used normally when the positioning post is clamped, and the blade can be replaced when the positioning post is loosened. Thus, the blade can be replaced when the blade wears to the critical value, reducing unnecessary wear and lowering the cost of use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0014] Figure 2 This is an exploded structural diagram of Embodiment 1 of the present invention.

[0015] Figure 3 This is a cross-sectional view of the movable strip in the locking position according to Embodiment 1 of this utility model.

[0016] Figure 4 This is a cross-sectional view of the movable bar in the unlocking position according to Embodiment 1 of this utility model.

[0017] Figure 5 This is a cross-sectional view of the movable strip in the locking position according to Embodiment 2 of this utility model. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1 to 4 Example 1: A split-type trowel includes a grip and a blade 1. The blade 1 has a positioning post 2. The grip is connected to a connecting seat 3. The connecting seat 3 has an insertion hole 4 for the positioning post 2. The connecting seat 3 has a movable strip 6 with a positioning hole 5 and a lever 7 rotatably connected to the connecting seat 3 for moving the movable strip 6. The positioning hole 5 allows the positioning post 2 to be inserted, and the movable strip 6 can be moved by the lever 7. The movable strip 6 includes a locking position where the side wall of the positioning hole 5 engages with the side wall of the insertion hole 4 to clamp the positioning post 2, and a releasing position where the lever 7 releases the positioning post 2. This split-type trowel allows the side wall of the positioning hole to engage with the side wall of the insertion hole to clamp the positioning post, or to release the positioning post, by moving the lever. It can be used normally when the positioning post is clamped, and the blade can be replaced when the positioning post is released. This allows the blade to be replaced when it wears to a critical value, reducing unnecessary wear and lowering operating costs.

[0019] In this embodiment, the positioning hole 5 includes an insertion side 51 that is larger than the positioning post 2 and a positioning side 52 that is smaller than the positioning post 2. This structure allows the positioning hole 5 to contact the positioning post 2 at multiple positions when the movable strip 6 is in the locked position, increasing friction and preventing the positioning post 2 from disengaging.

[0020] In this embodiment, the bottom of the lever 7 is rotatably connected to the movable bar 6, and the lever 7 is locked by the locking member when the movable bar 6 is in the locked position.

[0021] In this embodiment, the gripping part includes an upper gripping part 8 and a lower gripping part 9. The upper gripping part 8 is fixedly connected to the connecting seat 3, and the lower gripping part 9 is rotatably connected to the connecting seat 3 as a locking element. The lower gripping part 9 is provided with a slot 10 for inserting and movably engaging the lever 7. When the lower gripping part 9 and the upper gripping part 8 are gripped, the lower gripping part 9 drives the lever 7 to rotate and moves the movable bar 6 to the locking position. This structure allows the movable bar 6 to lock the blade plate 1 when the lower gripping part 9 and the upper gripping part 8 are gripped.

[0022] In this embodiment, the upper gripping part 8 has a latch 11 at its tail facing the lower gripping part 9, and the lower gripping part 9 has an elastic buckle 12 at its tail that engages with the latch 11. The elastic buckle 12 is inserted into the latch 11 to fix the lower gripping part 9 and keep the movable strip 6 in the locked position. This structure allows the elastic buckle 12 to engage with the latch 11 to fix the upper gripping part 8 and the lower gripping part 9, ensuring that the blade plate 1 can always be locked without needing to be replaced.

[0023] In this embodiment, the tail of the buckle 11 is provided with a through hole 13 for inserting a pusher to push the elastic buckle 12 to contact and fix the lower grip 9. This structure facilitates pushing the elastic buckle 12 to release the lower grip 9 from its fixation, while also preventing accidental release of the lower grip 9 from its fixation.

[0024] In this embodiment, the connecting seat 3 includes a connecting strip 31 and a bent arm 32 connected to the connecting strip 31. The bent arm 32 has an installation gap 33. The movable strip 6 is movably disposed at the bottom of the installation gap 33, and the lever 7 is rotatably disposed within the installation gap 33. This structure makes the overall mechanism more stable.

[0025] In this embodiment, the blade plate 1 is provided with a plurality of positioning posts 2 arranged in a straight line, the connecting seat 3 is provided with a plurality of insertion holes 4 adapted to the plurality of positioning posts 2, and the movable strip 6 is provided with a plurality of positioning holes 5 adapted to the plurality of positioning posts 2. This structure makes the positioning of the blade plate 1 more stable.

[0026] See Figure 5 Example 2, a split-type trowel, differs from Example 1 only in that the upper grip 8 does not have a buckle, the lower grip 9 does not have an elastic buckle 12, and the upper grip 8 does not have a through hole 13. In Example 2, the split-type trowel is locked in place only when the user grips the lower grip 9 and the upper grip 8 to stably clamp the blade plate 1. When the user releases the lower grip 9 and the upper grip 8, the blade plate 1 can be disengaged without affecting the function of the trowel or the implementation of the technical solution of the present invention. In other words, Example 2 allows the user to consistently apply force to the lever 7 to push the movable strip 6 to the locking position during use, and maintains the movable strip 6 in the locked position.

[0027] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A split trowel comprising a handle and a blade (1), characterised in that: The knife plate (1) is provided with a positioning column (2), the holding part is connected with a connecting seat (3), the connecting seat (3) is provided with a insertion hole (4) for inserting the positioning column (2), the connecting seat (3) is provided with a movable strip (6) with a positioning hole (5) and a lever (7) for moving the movable strip (6) and is rotatably connected to the connecting seat (3), the positioning hole (5) can be inserted into the positioning column (2), the movable strip (6) can be moved by the lever (7), the movable strip (6) includes a locking position clamped by the side wall of the positioning hole (5) and the side wall of the insertion hole (4) and a release position released by the lever (7).

2. A split mud trowel as claimed in claim 1, wherein: The positioning hole (5) includes an insertion side (51) larger than the positioning column (2) and a positioning side (52) smaller than the positioning column (2).

3. The split mud trowel of claim 1, wherein: The bottom of the lever (7) is rotatably connected to the movable strip (6), and the lever (7) is locked by a locking member when the movable strip (6) is in the locking position.

4. A split mud scraper as claimed in claim 3, wherein: The holding part includes an upper holding part (8) and a lower holding part (9), the upper holding part (8) is fixedly connected to the connecting seat (3), and the lower holding part (9) is rotatably connected to the connecting seat (3) as a locking member, the lower holding part (9) is provided with an insertion slot (10) for inserting and movably cooperating with the lever (7), and when the lower holding part (9) is engaged with the upper holding part (8), the lower holding part (9) drives the lever (7) to rotate and moves the movable strip (6) to the locking position.

5. A split mud scraper as claimed in claim 4, wherein: The tail of the upper holding part (8) is provided with a buckle opening (11) facing the direction of the lower holding part (9), the tail of the lower holding part (9) is provided with an elastic buckle (12) matched with the buckle opening (11), the elastic buckle (12) is inserted into the buckle opening (11) to fix the lower holding part (9) and keep the movable strip (6) in the locking position.

6. A split mud scraper as claimed in claim 5, wherein: The tail of the buckle opening (11) is provided with a through hole (13) for inserting a pushing member to push the elastic buckle (12) to contact the lower holding part (9) to be fixed.

7. The split mud trowel of claim 3, wherein: The connecting seat (3) includes a connecting strip (31) and a bending arm (32) connected to the connecting strip (31), the bending arm (32) is provided with a mounting gap (33) inside, the movable strip (6) is movably arranged at the bottom of the mounting gap (33), and the lever (7) is rotatably arranged in the mounting gap (33).

8. The split mud trowel of claim 1, wherein: The knife plate (1) is provided with a plurality of positioning columns (2) arranged in a straight line, the connecting seat (3) is provided with a plurality of insertion holes (4) matched with the plurality of positioning columns (2), and the movable strip (6) is provided with a plurality of positioning holes (5) matched with the plurality of positioning columns (2).

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