A trowel

Abstract

The application discloses a trowel, and the trowel is characterized in that a connecting part is arranged on the surface of a blade; at least two connecting and matching parts which are matched with the connecting part are arranged on a connecting seat of a handle assembly; and the connecting seat and the trowel blade are detachably connected through the connecting and matching parts and the connecting part. When each connecting and matching part is matched with the connecting part, different relative positions exist between the handle and the blade. In this way, the trowel is suitable for different application scenarios, and the construction efficiency of an operator is improved, and the labor intensity of the operator is reduced.

Description

Technical Field

[0001] This utility model generally relates to the field of building construction technology, and in particular to a trowel. Background Technology

[0002] A trowel is a tool used in construction to smooth and fill plaster. Based on material, trowel blades come in various types, including carbon steel, manganese steel, and stainless steel. Based on application, trowel blades can be categorized as having serrated edges, square teeth, curved teeth, or flat edges.

[0003] In related technologies, the trowel has a flat edge on one side and a toothed edge on the other. The flat and toothed edges are used to compact larger concrete particles, while the flat edge is used to smooth the concrete layer. However, because the handle and the relative positions of the toothed and flat edges of the trowel are fixed, this is not suitable for some applications and affects worker efficiency. Utility Model Content

[0004] This utility model provides a trowel, including: a trowel blade and a handle assembly.

[0005] A smearing blade includes a blade, the surface of which is provided with a connecting portion; The handle assembly includes a handle and a connecting base that are connected to each other. The connecting base has at least two connecting mating parts that are adapted to the connecting part. The connecting base and the trowel blade are detachably connected to the connecting part through the connecting mating parts. When one of the connecting parts is connected to the connecting part, the length direction of the handle forms a first angle with a first direction, where the first direction is the length or width direction of the blade; when another connecting part is connected to the connecting part, the length direction of the handle forms a second angle with the first direction, where the second angle is not equal to the first angle.

[0006] As one possible implementation, the blade surface is provided with a connecting rail extending along the first direction, and the connecting portion is configured as the connecting rail. At least two connecting mating parts adapted to the connecting rail include a first connecting groove and a second connecting groove, wherein the connecting rail is inserted into the first connecting groove and the connecting rail is inserted into the second connecting groove.

[0007] As one possible implementation, the connecting rail includes a first surface and a second surface disposed opposite to each other, the first surface and the second surface being perpendicular to the blade surface, and an elongated groove being formed on at least one of the first surface and the second surface. The first connecting groove has a first protruding rib on its groove wall that matches the long groove, and the second connecting groove has a second protruding rib on its groove wall that matches the long groove.

[0008] As an implementation method, the cross-sections of the first rib and the second rib are semi-circular.

[0009] As an alternative implementation, the length of the elongated groove is adapted to the length of the connecting rail.

[0010] As one possible implementation, the connector includes a locking structure having a locked state and an unlocked state. When the locking structure is in the locked state, the connecting rail is locked to the first connecting groove and the second connecting groove; when the locking structure is in the unlocked state, the first connecting groove and the second connecting groove can move along the connecting rail.

[0011] As one possible implementation, the connector further includes a housing, the housing having a locking mounting cavity, a first connecting groove, and a second connecting groove. The locking structure located within the locking mounting cavity includes a lever pressing member, which comprises a pressing portion and a transmission portion. A first hinge shaft passes through the transmission portion and is mounted in the locking mounting cavity. The pressing part moves under external pressure and has a first switching position and a second switching position. When the pressing part is in the first switching position, the transmission part directly or indirectly presses against the connecting rail. When the pressing part is in the second switching position, the transmission part releases its pressure on the connecting rail.

[0012] As one possible implementation, the locking structure further includes a connecting pressing member and a hinge block, with a second hinge shaft passing through the hinge block and mounted in the locking mounting cavity. The pressing member and the hinge block rotate together about the second hinge shaft. The pressing member is located at least partially between the transmission part and the connecting rail, and the surface of the pressing member near the connecting rail is flat.

[0013] As one possible implementation, the first hinge axis and the second hinge axis are arranged in parallel and both are perpendicular to the connecting rail. One of the hinge block and the pressing member has a third connecting groove, and the other has a connecting protrusion adapted to the third connecting groove. The connecting protrusion can move linearly within the third connecting groove. The direction of movement of the connecting protrusion is perpendicular to the first hinge axis or the second hinge axis, so that different areas of the pressing member can contact the transmission part.

[0014] As one possible implementation, the connecting rail is inserted into the first connecting slot, and the length direction of the handle is at 0° to the first direction; or the connecting rail is inserted into the second connecting slot, and the length direction of the handle is at 90° to the first direction.

[0015] In the above-described solution, this application features a connecting portion on the blade surface; the connecting seat of the handle assembly has at least two connecting mating portions adapted to the connecting portion, allowing the connecting seat and the trowel blade to be detachably connected via these mating portions. Each time a connecting mating portion engages with the connecting portion, a different relative position exists between the handle and the blade. This allows the trowel to adapt to different application scenarios, helping to improve the operator's work efficiency and reduce their labor intensity. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 Schematic diagram of the structure of the trowel provided in the embodiment of this utility model Figure 1 ; Figure 2 for Figure 1 An explosion diagram; Figure 3 Schematic diagram of the structure of the trowel provided in the embodiment of this utility model Figure 2 ; Figure 4 This is a schematic diagram of the structure of the connector provided in an embodiment of the present utility model; Figure 5 A cross-sectional schematic diagram of the connector provided in an embodiment of this utility model; Figure 6 A schematic diagram of the structure of the housing provided in this embodiment of the utility model; Figure 7 This is a schematic diagram of the locking structure provided in an embodiment of the present utility model; 10 trowel blade, 11 blade, 12 connecting rail, 121 long groove; Connecting seat 20, seat shell 21, first connecting groove 211, first protruding rib 2111, second connecting groove 212, second protruding rib 2121; Locking structure 22, lever pressing member 221, pressing part 2211, transmission part 2212, pressing member 222, connecting protrusion 2221, hinge block 223, third connecting groove 2231, first hinge shaft 224, second hinge shaft 225; Handle 30, upper rubber sleeve 31, lower rubber sleeve 32. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] A trowel is a tool used in construction to smooth and fill plaster. Depending on the material, trowel blades 11 are available in carbon steel, manganese steel, and stainless steel. Based on their application, trowel blades 11 can be serrated, square-toothed, curved-toothed, or flat-edged.

[0020] In related technologies, the trowel has a flat edge on one side and a toothed edge on the other. The flat and toothed edges are used to compact larger concrete particles; the flat edge is used to smooth the concrete layer. However, because the handle 30 of the trowel and the relative positions of the toothed and flat edges are fixed, this is not conducive to some applications and affects worker efficiency.

[0021] Based on this, such as Figures 1-7 As shown, this application proposes a trowel, which includes a handle assembly and a trowel blade 10. The trowel blade 10 includes a blade 11, the surface of which is provided with a connecting portion; the handle assembly includes a handle 30 and a connecting seat 20 connected to each other, the connecting seat 20 is provided with at least two connecting mating portions adapted to the connecting portion, and the connecting seat 20 and the trowel blade 10 are detachably connected through the connecting mating portions and the connecting portion.

[0022] When one connecting part is connected to the connecting part, the length direction of the handle 30 forms a first angle with the first direction, which is the length or width direction of the blade 11; when another connecting part is connected to the connecting part, the length direction of the handle 30 forms a second angle with the first direction, and the second angle is not equal to the first angle.

[0023] like Figures 1-3 As shown in detail, the blade 11 has a connecting rail 12 extending along a first direction, which can be the length direction of the blade 11. The connecting part is configured as the connecting rail 12. The blade 11 has a first square sawtooth and a second direction sawtooth, as well as a first flat edge and a second flat edge. The first square sawtooth is arranged opposite to the first flat edge, and the second square sawtooth is arranged opposite to the second flat edge.

[0024] At least two connecting mating parts adapted to the connecting rail 12 include a first connecting groove 211 and a second connecting groove 212. For example... Figures 4-6As shown, the connector 20 also includes a housing 21, which has a first connecting groove 211 and a second connecting groove 212. The extending direction of the first connecting groove 211 intersects the extending direction of the second connecting groove 212. For example, the extending direction of the first connecting groove 211 is perpendicular to the extending direction of the second connecting groove 212, and the second connecting groove 212 penetrates the groove wall of the first connecting groove 211.

[0025] like Figure 1 As shown, when the connecting rail 12 is inserted into the first connecting groove 211, and the length direction of the handle 30 is at 0° to the connecting rail 12, the trowel can be used to handle confined spaces such as wall edges and baseboard edges, and can handle small areas of flat surface scraping and leveling, which helps to precisely control the tip of the blade 11; Figure 3 As shown, when the connecting rail 12 is inserted into the second connecting groove 212, the length direction of the handle 30 is at a 90° angle to the connecting rail 12. At this moment, the trowel can be used for scraping and leveling large areas of flat surfaces, resulting in high efficiency for the operator. Thus, by adjusting the relative position between the handle 30 and the blade 11, the trowel can be adapted to different application scenarios, helping to improve the operator's construction efficiency and reduce their labor intensity.

[0026] Of course, it is understood that at least two connecting parts adapted to the connecting rail 12 include, but are not limited to, two connecting slots, and there can be three connecting slots. When each connecting slot is engaged with the connecting rail 12, the included angle between the handle 30 and the connecting rail 12 is different. For example, when the connecting rail 12 is engaged with the first connecting slot 211, the length direction of the handle 30 is at 0° to the connecting rail 12; when the connecting rail 12 is engaged with the second connecting slot 212, the length direction of the handle 30 is at 90° to the connecting rail 12; and when the connecting rail 12 is engaged with the third connecting slot 2231, the length direction of the handle 30 is at 60° to the connecting rail 12. Similarly, there can be four connecting slots, and when each connecting slot is engaged with the connecting rail 12, the included angle between the handle 30 and the connecting rail 12 is different. This embodiment does not list them all.

[0027] It should be noted that in some embodiments, the surface of the blade 11 may be provided with multiple connecting grooves, and the housing 21 may be provided with connecting rails 12.

[0028] The connecting rail 12 includes a first surface and a second surface disposed opposite to each other. The first surface and the second surface are perpendicular to the surface of the blade 11. At least one of the first surface and the second surface forms an elongated groove 121. The first connecting groove 211 has a first rib 2111 on its groove wall that matches the elongated groove 121, and the second connecting groove 212 has a second rib 2121 on its groove wall that matches the elongated groove 121.

[0029] like Figure 2 , Figure 3 and Figure 6 As shown, a long groove 121 is provided on the first surface and a long groove 121 is provided on the second surface. The length of the long groove 121 is adapted to the length of the connecting rail 12. The cross-section of the long groove 121 is, but is not limited to, semi-circular.

[0030] First ribs 2111 are provided on both walls of the first connecting groove 211, and the first ribs 2111 are adapted to the elongated groove 121. The cross-section of the first rib 2111 is semi-circular. For example, the first rib 2111 can be hemispherical, and several first ribs 2111 are arranged at intervals along the same direction. Alternatively, the first rib 2111 can be semi-cylindrical, and the semi-cylindrical shape extends continuously or intermittently along the length direction of the first connecting groove 211 on the groove wall.

[0031] Second ribs 2121 are provided on both walls of the second connecting groove 212, and the second ribs 2121 are adapted to the elongated groove 121. The cross-section of the second rib 2121 is semi-circular. For example, the second rib 2121 can be hemispherical, and several second ribs 2121 are arranged at intervals along the same direction. Alternatively, the second rib 2121 can be semi-cylindrical, and the semi-cylindrical shape extends continuously or intermittently along the length direction of the second connecting groove 212 on the groove wall of the second connecting groove 212.

[0032] With the help of the first protruding rib 2111 or the second protruding rib 2121 and the long groove 121, the handle assembly can move freely along the length of the connecting rail 12 under the action of external force. This makes it easier and smoother for the handle assembly to slide on the connecting rail 12 to switch different connecting slots or disassemble.

[0033] The connecting seat 20 also includes a locking structure 22, which has a locked state and an unlocked state. When the locking structure 22 is in the locked state, the connecting rail 12 is locked to the first connecting groove 211 and the second connecting groove 212. When the locking structure 22 is in the unlocked state, the first connecting groove 211 and the second connecting groove 212 can move along the connecting rail 12.

[0034] like Figures 5-7 As shown, the connecting seat 20 includes a locking structure 22 and a seat housing 21. The seat housing 21 is also provided with a locking mounting cavity, which communicates with the first connecting groove 211. The locking structure 22, located in the locking mounting cavity, includes a lever pressing member 221, a pressing member 222, a hinge block 223, a first hinge shaft 224, and a second hinge shaft 225. The lever pressing member 221 includes a pressing part 2211 and a transmission part 2212. The first hinge shaft 224 passes through the transmission part 2212 and is mounted in the locking mounting cavity. The pressing part 2211 and the transmission part 2212 rotate around the first hinge shaft 224.

[0035] The second hinge shaft 225 passes through the hinge block 223 and is installed in the locking mounting cavity. The pressing member 222 and the hinge block 223 are connected together, and the pressing member 222 and the hinge block 223 rotate around the second hinge shaft 225. The pressing member 222 is at least partially located between the transmission part 2212 and the connecting rail 12, and the surface of the pressing member 222 near the connecting rail 12 is flat.

[0036] The pressing part 2211 swings around the first hinge axis 224 under external pressure, having a first switching position and a second switching position. For example, as Figure 5 As shown, the pressing part 2211 swings up and down in space. When the pressing part 2211 is in the first switching position, the transmission part 2212 presses against the pressing member 222, so that the pressing member 222 presses against the connecting rail 12. When the pressing part 2211 is in the second switching position, which is lower than the first switching position, the transmission part 2212 releases the pressure on the pressing member 222, so that the pressing member 222 no longer presses against the connecting rail 12.

[0037] When the pressing part 2211 is in the first switching position, the pressing member 222 presses against the connecting rail 12, thereby generating a large static friction force between the contact surface of the connecting rail 12 and the connecting groove. This friction force is sufficient to prevent any accidental slippage or loosening between the handle assembly and the trowel blade 10 during use, ensuring stability and safety during construction. When the pressing part 2211 is in the second switching position, the force between the connecting rail 12 and the connecting groove is released, and the handle assembly can easily and smoothly slide along the length of the connecting rail 12 to switch to another connecting groove for angle adjustment, or directly separate the two for disassembly or replacement of the trowel blade 10. In addition, the surface of the pressing member 222 near the connecting rail 12 is flat, which increases the contact area between the pressing member 222 and the connecting rail 12, helping to apply the pressing force evenly to the connecting rail 12; at the same time, it avoids stress concentration damage to the surface of the connecting rail 12, improving the durability of the component.

[0038] It should be noted that when the pressing part 2211 is in the first switching position, the transmission part 2212 presses against the connecting rail 12. In some embodiments, the locking structure 22 located in the locking mounting cavity includes a lever pressing member 221 and a first hinge shaft 224. The first hinge shaft 224 passes through the transmission part 2212, and the pressing part 2211 and the transmission part 2212 rotate around the first hinge shaft 224. When the pressing part 2211 is in the first switching position, the transmission part 2212 directly presses against the connecting rail 12. When the pressing part 2211 is in the second switching position, the transmission part 2212 does not press against the connecting rail 12.

[0039] Furthermore, the first hinge shaft 224 and the second hinge shaft 225 are arranged in parallel and are both perpendicular to the connecting rail 12. One of the hinge block 223 and the pressing member 222 has a third connecting groove 2231, and the other has a connecting protrusion 2221 adapted to the third connecting groove 2231. The connecting protrusion 2221 can move linearly within the third connecting groove 2231. The direction of movement of the connecting protrusion 2221 is perpendicular to the first hinge shaft 224 or the second hinge shaft 225, so that different areas of the pressing member 222 can contact the transmission part 2212.

[0040] like Figure 5 and Figure 7 As shown, the hinge block 223 has a third connecting groove 2231, and the pressing member 222 has a connecting protrusion 2221. The bolt passes through the third connecting groove 2231 to the connecting protrusion 2221. By rotating the bolt, the connecting protrusion 2221 moves within the third connecting groove 2231, thereby causing the pressing member 222 to move along the length of the connecting rail 12. In this way, different areas of the pressing member 222 can contact the transmission part 2212.

[0041] The operator can move the pressing member 222 along the length of the connecting rail 12 by rotating the bolts, the third connecting groove 2231 and the connecting protrusion 2221 to adjust the structure. In this way, when the locking effect of the locking structure 22 is reduced due to long-term use, another area of ​​the pressing member 222 can contact the transmission part 2212, thereby restoring the original locking effect of the locking structure 22.

[0042] Among them, such as Figure 2 As shown, the handle 30 has an upper rubber sleeve 31 and a lower rubber sleeve 32. The upper rubber sleeve 31 can be made of harder, more supportive rubber to withstand strong pressure; the lower rubber sleeve 32 can be made of softer, more elastic rubber to improve grip comfort and fit. The two rubber sleeves provide double anti-slip protection at key pressure points, ensuring that the shovel will not accidentally slip out of your hand, whether in dry or wet environments or when your hands are covered in mud or water.

[0043] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "frame" and "layout" 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. Thus, a feature defined with "frame" or "layout" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A trowel, characterized in that, include: A trowel blade (10) includes a blade (11) with a connecting portion on its surface; The handle assembly includes a handle (30) and a connecting seat (20) connected to each other. The connecting seat (20) is provided with at least two connecting mating parts adapted to the connecting part. The connecting seat (20) and the trowel blade (10) are detachably connected to the connecting part through the connecting mating parts. When one of the connecting parts is connected to the connecting part, the length direction of the handle (30) forms a first angle with the first direction, the first direction being the length or width direction of the blade (11); when the other connecting part is connected to the connecting part, the length direction of the handle (30) forms a second angle with the first direction, the second angle being unequal to the first angle.

2. The trowel according to claim 1, characterized in that, The blade (11) has a connecting rail (12) extending along the first direction on its surface, and the connecting part is configured as the connecting rail (12). At least two connecting mating parts adapted to the connecting rail (12) include a first connecting groove (211) and a second connecting groove (212), wherein the connecting rail (12) is inserted into the first connecting groove (211) and the connecting rail (12) is inserted into the second connecting groove (212).

3. The trowel according to claim 2, characterized in that, The connecting rail (12) includes a first surface and a second surface disposed opposite to each other. The first surface and the second surface are perpendicular to the surface of the blade (11). An elongated groove (121) is formed on at least one of the first surface and the second surface. The first connecting groove (211) has a first protruding rib (2111) on its groove wall that is adapted to the long groove (121), and the second connecting groove (212) has a second protruding rib (2121) on its groove wall that is adapted to the long groove (121).

4. The trowel according to claim 3, characterized in that, The cross-sections of the first rib (2111) and the second rib (2121) are semi-circular.

5. The trowel according to claim 3, characterized in that, The length of the elongated groove (121) is adapted to the length of the connecting rail (12).

6. The trowel according to claim 2, characterized in that, The connecting seat (20) includes a locking structure (22), which has a locked state and an unlocked state. When the locking structure (22) is in the locked state, the connecting rail (12) is locked to the first connecting groove (211) and the second connecting groove (212); when the locking structure (22) is in the unlocked state, the first connecting groove (211) and the second connecting groove (212) can move along the connecting rail (12).

7. The trowel according to claim 6, characterized in that, The connecting seat (20) also includes a housing (21), which has a locking mounting cavity, a first connecting groove (211) and a second connecting groove (212). The locking structure (22) located within the locking mounting cavity includes a lever pressing member (221), which includes a pressing part (2211) and a transmission part (2212). A first hinge shaft (224) passes through the transmission part (2212) and is mounted in the locking mounting cavity. The pressing part (2211) moves under external pressure and has a first switching position and a second switching position. When the pressing part (2211) is in the first switching position, the transmission part (2212) directly or indirectly presses against the connecting rail (12); when the pressing part (2211) is in the second switching position, the transmission part (2212) releases its pressure on the connecting rail (12).

8. The trowel according to claim 7, characterized in that, The locking structure (22) further includes a connecting pressing member (222) and a hinge block (223), a second hinge shaft (225) passing through the hinge block (223), the second hinge shaft (225) being mounted in the locking mounting cavity, and the pressing member (222) and the hinge block (223) rotating together around the second hinge shaft (225). The pressing member (222) is located at least partially between the transmission part (2212) and the connecting rail (12), and the surface of the pressing member (222) near the connecting rail (12) is flat.

9. The trowel according to claim 8, characterized in that, The first hinge shaft (224) and the second hinge shaft (225) are arranged in parallel and are both perpendicular to the connecting rail (12). One of the hinge block (223) and the pressing member (222) has a third connecting groove (2231), and the other has a connecting protrusion (2221) adapted to the third connecting groove (2231). The connecting protrusion (2221) can move linearly within the third connecting groove (2231). The direction of movement of the connecting protrusion (2221) is perpendicular to the first hinge shaft (224) or the second hinge shaft (225), so that different areas of the pressing member (222) can contact the transmission part (2212).

10. The trowel according to claim 2, characterized in that, The connecting rail (12) is inserted into the first connecting groove (211), and the length direction of the handle (30) is 0° with the first direction; the connecting rail (12) is inserted into the second connecting groove (212), and the length direction of the handle (30) is 90° with the first direction.

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