Multifunctional plate edge trimmer

Abstract

The utility model discloses a multifunctional plate trimmer which comprises an installation base, a planer tool assembly and a file plate, a fixing window is formed in the side portion of the installation base, a positioning groove is formed in the bottom of the installation base, and the positioning groove is used for being attached to the edge of a corner angle of a plate to be machined. The positioning groove is defined by the bottom face of the installation base and the side portion, provided with the fixing window, of the installation base. The planer tool assembly comprises a tool apron and a planer tool blade arranged on the tool apron, the tool apron is detachably arranged in the fixed window, and at least part of a cutting edge of the planer tool blade is located in the positioning groove, so that chamfering operation is carried out on edges and corners of the to-be-machined plate; the file plate is detachably connected to the bottom face of the installation base, and the planer tool assembly and the file plate are alternatively installed on the installation base. The multifunctional plate edge trimmer can be used for chamfering a plate and flattening or shaping the uneven surface of the plate, and is more convenient for workers to carry.

Description

Technical Field

[0001] This utility model relates to a board trimmer, and more particularly to a multifunctional board trimmer capable of chamfering and smoothing or shaping uneven surfaces of boards. Background Technology

[0002] Currently, gypsum board is frequently used in decoration processes for ceilings, partitions, etc. To improve the aesthetics of the decoration, the gypsum board needs to be processed. For example, the edges of the gypsum board need to be chamfered, and uneven surfaces need to be smoothed or shaped. In existing technology, workers typically use a chamfering tool to chamfer the gypsum board first, and then use a file to smooth or shape the uneven surface. When traveling to the construction site, workers need to carry two sets of tools—a chamfering tool and a file—which is inconvenient and increases their workload.

[0003] Existing gecko gun structures generally include a first gun body and a second gun body, both with handles at their ends. The top of the first gun body has a groove, the front end of which is a locking groove for securing the gecko nail. A pull block is located within the groove. The pull block has a positioning groove that can hold the gecko nail core. The pull block is rotatably connected to the second gun body. Squeezing the handle of the second gun body causes it to slide along the groove, pulling the gecko nail core backward, thus securing the gecko nail.

[0004] Although the gecko gun provided by the above technical solution can perform the function of riveting gecko nails, the following problems still exist during use: Since the first gun body at the top of the slide is made of plastic and the pull seat is made of metal, when the pull seat slides along the slide, the metal pull seat and the plastic first gun body rub hard against each other, which can easily cause wear and noise. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a multi-functional board trimmer. Using this multi-functional board trimmer, the board can be chamfered and the uneven surface of the board can be smoothed or shaped, which is more convenient for workers to carry.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] A multifunctional board trimming tool includes a mounting base, a planer assembly, and a file plate. The mounting base has a fixed window on its side and a positioning groove on its bottom. The positioning groove is used to fit against the edges of the board to be processed. The positioning groove is formed by the bottom surface of the mounting base and the side of the mounting base with the fixed window. The planer assembly includes a blade holder and planer blades mounted on the blade holder. The blade holder is detachably mounted in the fixed window, and at least a portion of the cutting edge of the planer blade is located in the positioning groove, thereby performing chamfering operations on the edges of the board to be processed. The file plate is detachably connected to the bottom surface of the mounting base, and either the planer assembly or the file plate is selectively mounted on the mounting base.

[0008] Furthermore, the fixed window has a slot on its groove wall, and one end of the knife holder has a locking block, which is locked in the slot.

[0009] Furthermore, the blade holder is provided with an extension, and the extension and the locking block are respectively located at opposite ends of the blade holder; the multi-functional sheet metal trimmer also includes a locking member rotatably connected to the side of the mounting base, the locking member being able to rotate under force in a locked position and an unlocked position: when the locking member is in the locked position, the locking member presses the extension onto the mounting base, thereby locking the planer assembly; when the locking member is in the unlocked position, the locking member disengages from the extension, thereby allowing the planer assembly to be detached from the fixed window.

[0010] Furthermore, the bottom surface of the mounting base is provided with slots and mounting holes spaced apart along the length of the mounting base. The opposite ends of the file plate are respectively provided with a first locking protrusion and a second locking protrusion. The first locking protrusion is inserted into the slot, and the second locking protrusion is movably inserted into the mounting hole. A locking slide is slidably installed at the mounting hole. The locking slide is located on the side of the second locking protrusion closer to the slot. The locking slide can move along the mounting hole under force to clamp the second locking protrusion between the locking slide and the mounting base.

[0011] Furthermore, the locking slide is connected to the locking member via a connecting rod. When the locking member is rotated under force, it can drive the locking slide to reciprocate along the mounting hole via the connecting rod, thereby clamping or releasing the second latching protrusion.

[0012] Furthermore, when the locking member is in the locked position, the locking slide is located away from the slot to hold the second latch between the locking slide and the mounting base; when the locking member is in the unlocked position, the locking slide is located close to the slot, so that the locking slide is away from the second latch.

[0013] Furthermore, one end of the connecting rod is rotatably connected to the locking member via a first retaining shaft, and the other end of the connecting rod is vertically mounted with a second retaining shaft; the locking slide is provided with an elongated groove, which gradually slopes towards the slot along the direction close to the planer assembly; the locking slide is movably fitted onto the second retaining shaft via the groove.

[0014] Furthermore, the mounting base has a receiving cavity communicating with the mounting hole, and the side of the mounting base has a movable opening communicating with the receiving cavity; the locking slide and the connecting rod are both received in the receiving cavity, the locking member movably passes through the movable opening to extend into the receiving cavity, and the connecting rod and the portion of the locking member located in the receiving cavity are rotatably connected.

[0015] Furthermore, the locking component includes a locking arm and a connecting plate. The locking arm is located outside the receiving cavity and is rotatably connected to the mounting base via a connecting shaft. The locking arm can cooperate with the extension to lock the planer assembly. The connecting plate is fixedly connected to the locking arm and movably passes through the movable opening. The connecting rod is rotatably connected to the portion of the connecting plate located in the receiving cavity.

[0016] Furthermore, the locking arm includes a handle portion and a pressing head formed by bending and extending one end of the handle portion toward the mounting base. The junction of the handle portion and the pressing head is rotatably connected to the mounting base via the connecting shaft. When the handle portion is subjected to force, it can drive the pressing head to rotate around the connecting shaft to press against or release the extension portion. The handle portion is fixedly connected to one side of the linkage plate.

[0017] Furthermore, the first latching protrusion can move along the slot. When the locking slide moves away from the slot, the locking slide drives the file plate to move together through the second latching protrusion until the first latching protrusion abuts against the groove wall of the slot near the mounting hole.

[0018] Furthermore, the width of the locking slide is greater than the width of the mounting hole; a guide protrusion is provided on the side of the locking slide facing the positioning groove, and the guide protrusion is slidably received in the mounting hole to guide the movement of the locking slide.

[0019] Furthermore, the first protrusion gradually tilts towards the second protrusion along the direction away from the file plate, and the second protrusion gradually tilts towards the first protrusion along the direction away from the file plate.

[0020] Furthermore, both the locking slide and the guide protrusion have a recessed limiting groove at the end away from the slot for the second card to pass through.

[0021] Compared with existing technologies, the multifunctional sheet metal trimmer of this invention has the following advantages:

[0022] When using the above-mentioned multi-functional board trimmer, a planer assembly for chamfering or a file for trimming the board surface can be installed on the mounting base as needed, thereby achieving the chamfering and smoothing or shaping of the board surface and uneven surfaces. When going to the destination to process the board, only one tool needs to be carried, which is more convenient to carry than existing technology and can reduce the burden on workers. Attached Figure Description

[0023] Figure 1 A perspective view of a multifunctional sheet metal trimmer with a planer assembly installed according to a preferred embodiment of the present invention.

[0024] Figure 2 for Figure 1 The right view of the multi-functional sheet metal trimmer shown;

[0025] Figure 3 for Figure 1 The multi-functional board trimmer shown is presented in a three-dimensional view from another perspective.

[0026] Figure 4 for Figure 1 The diagram shows the structure of the planer assembly in the multi-functional sheet metal trimmer.

[0027] Figure 5 A perspective view of a multifunctional sheet metal trimmer with a file plate installed according to a preferred embodiment of the present invention.

[0028] Figure 6 for Figure 5 The multi-functional board trimmer shown is presented in a three-dimensional view from another perspective.

[0029] Figure 7 for Figure 5 The diagram shows the structure of the multi-functional sheet metal trimmer after removing part of the mounting base.

[0030] Figure 8 for Figure 7 Exploded structural diagram;

[0031] Figure 9 for Figure 5 Top view;

[0032] Figure 10 for Figure 9 A sectional view along line AA.

[0033] In the diagram: 10. First gun body; 11. Main body; 111. Side wall; 1110. Mounting hole; 112. Top plate; 113. Front plate; 1130. Locking groove; 114. Reception space; 115. Slide groove; 12. First handle; 20. Second gun body; 21. Connecting part; 210. Connecting plate; 2101. Connecting hole; 211. Back plate; 212. Mounting space; 22. Second handle; 30. Pull base; 31. Side plate; 310. Rotating hole; 32. End plate; 320. Positioning groove; 40. Roller; 50. Rotating shaft; 60. Connecting piece; 61. Main body; 610. Pin hole; 62. Connecting wall; 70. First pin; 80. Second pin; 90. Hook. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] Please also see Figure 1 , Figure 2 and Figure 5 A preferred embodiment of this utility model provides a multifunctional board trimmer 100, which includes a mounting base 10 and a planer assembly 20 and a file plate 30 that are spaced apart on the mounting base 10. The planer assembly 20 is used to chamfer the edges of the board, and the file plate 30 is used to smooth or shape the uneven surface of the board.

[0038] Please see also Figure 3 and Figure 7 The mounting base 10 has a fixed window 11 on its side 14 for mounting the planer assembly 20. In this embodiment, the fixed window 11 has a slot 112 on its groove wall. The bottom of the mounting base 10 has a positioning groove 12 for fitting against the edges of the material to be processed. The positioning groove 12 is formed by the bottom surface 13 of the mounting base 10 and the side 14 of the mounting base 10 with the fixed window 11. The mounting base 10 has a receiving cavity 15 inside, and the side 14 of the mounting base 10 with the fixed window 11 has a movable opening 16 communicating with the receiving cavity 15. The bottom surface 13 of the mounting base 10 has slots 17 and mounting holes 18 spaced apart along the length of the mounting base 10. Both slots 17 and mounting holes 18 communicate with the receiving cavity 15. The mounting holes 18 are generally waist-shaped and their length is parallel to the length of the mounting base 10. In addition, to facilitate the operation of the multi-functional board trimmer 100, a handle 40 is fixedly connected to the top of the mounting base 10 in this embodiment.

[0039] Please see also Figure 4 The planer assembly 20 includes a tool holder 21 and planer blades 23 mounted on the tool holder 21. The tool holder 21 is detachably mounted in the fixed window 11. Specifically, one end of the tool holder 21 is provided with a locking block 26, which engages with a locking groove 112 on the groove wall of the fixed window 11, thereby detachably mounting the tool holder 21 in the fixed window 11. An extension 25 is also protruding from the tool holder 21, and the extension 25 and the locking block 26 are located at opposite ends of the tool holder 21. In this embodiment, the side portion 14 of the mounting base 10 is also recessed with a mounting groove 19 corresponding to the extension 25. When the tool holder 21 is detachably mounted in the fixed window 11, the extension 25 is housed in the mounting groove 19 for positioning. At least a portion of the cutting edge of the planer blade 23 is located in the positioning groove 12, thereby performing chamfering operations on the corners of the material to be processed. The structure of the planer blade 23 and its connection with the tool holder 21 in this embodiment are both existing technologies, and will not be described in detail here to save space.

[0040] The multi-functional sheet metal trimmer 100 also includes a locking member 50 rotatably connected to the side 14 of the mounting base 10. The locking member 50 is rotatable in a locked position and an unlocked position: when the locking member 50 is in the locked position ( Figure 1 When the locking member 50 is in the unlocked position (not shown), the locking member 50 presses the extension 25 against the mounting base 10, thereby locking the planer assembly 20; when the locking member 50 is in the unlocked position (not shown), the locking member 50 disengages from the extension 25, thereby allowing the planer assembly 20 to be removed from the fixed window 11.

[0041] Please see again Figure 3In this embodiment, the locking member 50 is movably inserted through the movable opening 16 into the receiving cavity 15. Specifically, the locking member 50 includes a locking arm 51 and a connecting plate 53. The locking arm 51 can cooperate with the extension 25 to lock the planer assembly 20. The locking arm 51 is located outside the receiving cavity 15 and is rotatably connected to the mounting base 10 via a connecting shaft 60. For details, please refer again. Figure 5 The locking arm 51 includes a handle portion 511 and a pressing head 513 formed by bending and extending one end of the handle portion 511 toward the mounting base 10. The junction of the handle portion 511 and the pressing head 513 is rotatably connected to the mounting base 10 via a connecting shaft 60. Specifically, the side portion 14 of the mounting base 10 is provided with two lugs 142 spaced apart. The two lugs 142 are fixedly connected to both ends of the connecting shaft 60. The locking arm 51 is located between the two lugs 142, and the junction of the handle portion 511 and the pressing head 513 is rotatably sleeved on the connecting shaft 60. When the handle portion 511 is subjected to force, it can drive the pressing head 513 to rotate around the connecting shaft 60, thereby pressing or releasing the extension portion 25. Please refer to [reference needed]. Figure 8 The linkage plate 53 is fixedly connected to the locking arm 51 and movably passes through the movable opening 16. In this embodiment, the handle part 511 is fixedly connected to one side of the linkage plate 53, and the side of the linkage plate 53 away from the handle part 511 is located in the receiving cavity 15.

[0042] In existing chamfering machines, the blade holder 21 of the planer assembly 20 is inserted into the fixed window 11 and is typically locked to the mounting base 10 with screws. This requires screwdrivers or other tools to tighten the screws during installation and removal, making it cumbersome. This embodiment uses a rotating locking arm 51 to lock or unlock the planer assembly 20, making its installation and removal much easier. Furthermore, the locking arm 51 is located on the outside of the mounting base 10 for user convenience.

[0043] Please see again Figure 3 , Figures 5 to 8The file plate 30 is detachably connected to the bottom surface 13 of the mounting base 10, and the planer assembly 20 and the file plate 30 are optionally mounted on the mounting base 10. In this embodiment, the file plate 30 is generally elongated and has a plurality of planing holes (not shown) spaced apart on it. In use, the file plate 30 plans the surface of the material through the plurality of planing holes spaced apart on it. The file plate 30 has a first locking protrusion 31 and a second locking protrusion 33 at opposite ends. The first locking protrusion 31 gradually tilts towards the second locking protrusion 33 in a direction away from the file plate 30, and the second locking protrusion 33 gradually tilts towards the first locking protrusion 31 in a direction away from the file plate 30, so that the first locking protrusion 31 and the second locking protrusion 33 are hook-shaped with opposite openings. The first locking protrusion 31 is inserted into the slot 17 of the mounting base 10, and the first locking protrusion 31 can slide along the slot 17; the second locking protrusion 33 is movably inserted into the mounting hole 18 of the mounting base 10, and the second locking protrusion 33 can slide along the mounting hole 18, thereby making it easier to install and remove the file plate 30.

[0044] Please see also Figure 9 and Figure 10 A locking slide 70 is slidably mounted at the mounting hole 18. The locking slide 70 is located on the side of the second latching protrusion 33 near the slot 17. The locking slide 70 can move along the mounting hole 18 under force to clamp the second latching protrusion 33 between the locking slide 70 and the mounting base 10, thereby locking the file plate 30 and preventing the file plate 30 from falling off the mounting base 10 or moving relative to the mounting base 10 during use. In this embodiment, the width of the locking slide 70 is greater than the width of the mounting hole 18 to prevent the locking slide 70 from falling off the mounting hole 18. A guide protrusion 71 is also provided on the side 14 of the locking slide 70 facing the mounting hole 18. The guide protrusion 71 is slidably received within the mounting hole 18 to guide the movement of the locking slide 70. Furthermore, in this embodiment, the locking slide 70 and the guide protrusion 71 are both recessed at the end away from the slot 17, and a limiting groove 73 is provided for the second locking protrusion 33 to pass through, so that the second locking protrusion 33 can be positioned by the limiting groove 73.

[0045] In this embodiment, the locking slide 70 is rotatably connected to the portion of the locking member 50 located in the receiving cavity 15 via the connecting rod 80. When the locking member 50 is rotated under force, it can drive the locking slide 70 to reciprocate along the mounting hole 18 via the connecting rod 80, thereby clamping or releasing the second latching protrusion 33. Specifically, the locking slide 70 and the connecting rod 80 are both housed in the receiving cavity 15 to prevent the locking slide 70 and the connecting rod 80 from affecting the operation of the file plate 30 or the planer blade 23. One end of the connecting rod 80 is rotatably connected to the portion of the connecting plate 53 located in the receiving cavity 15 via the first retaining shaft 81, and the other end of the connecting rod 80 is vertically mounted with the second retaining shaft 83. The locking slide 70 is provided with a long strip-shaped slide groove 75, which gradually slopes towards the slot 17 along the direction close to the planer blade assembly 20. The locking slide 70 is movably sleeved on the second retaining shaft 83 via the slide groove 75.

[0046] When the locking member 50 rotates, it can drive the locking slide 70 to move along the mounting hole 18 to a position away from the slot 17 via the connecting rod 80. During this process, the locking slide 70 drives the file plate 30 to move together via the second locking protrusion 33 until the first locking protrusion 31 abuts against the groove wall of the slot 17 near the mounting hole 18. At this time, the locking member 50 is in the locked position and clamps the second locking protrusion 33 between the locking slide 70 and the mounting base 10, thereby achieving stable locking of the file plate 30. In this embodiment, when the locking member 50 is in the locked position, the end of the guide protrusion 71 away from the slot 17 abuts against the groove wall of the mounting hole 18 away from the slot 17 to limit the movement position of the locking slide 70. In addition, in this embodiment, the groove wall of the slot 17 near the second locking protrusion 33 is a slope with the same inclination angle as the first locking protrusion 31 to increase the contact area between the groove wall of the slot 17 and the first locking protrusion 31, thereby further improving the stability of the file plate 30 installation. When the locking member 50 is in the unlocked position, the locking slide 70 is located near the slot 17, which moves the locking slide 70 away from the second latch 33, thereby unlocking the file plate 30 and allowing the user to remove the file plate 30 from the mounting base 10.

[0047] When using the multi-functional board trimmer 100 of this embodiment to chamfer the edges of boards such as gypsum board, firstly, rotate the locking member 50 to the unlocked position; then, lock the planer assembly 20 into the fixed window 11, and position the extension 25 on the blade holder 21 within the mounting groove 19; then, rotate the locking member 50 to the locked position, so that the pressing head 513 abuts against the outside of the extension 25, thereby firmly clamping the extension 25 between the pressing head 513 and the mounting base 10. During the chamfering operation, the two groove walls of the positioning groove 12, namely the bottom surface 13 and the side surface 14 of the mounting base 10, respectively contact the two sides of the edge of the board. By pushing the multi-functional board trimmer 100 along the edge of the board with the handle 40, the chamfer can be cut on the edge of the board by the planer blade 23.

[0048] When it is necessary to smooth or shape the uneven surface of the board, firstly, rotate the locking member 50 to the unlocked position so that the pressing head 513 moves away from the extension 25, and the planer assembly 20 can be pulled out from the fixed window 11; then, insert the first locking protrusion 31 of the file plate 30 into the slot 17 and the second locking protrusion 33 into the mounting hole 18; after that, rotate the locking member 50 to the locked position. During this process, the locking slide 70 drives the file plate 30 to move away from the slot 17 through the second locking protrusion 33 until the first locking protrusion 31 abuts against the groove wall of the slot 17 near the mounting hole 18, and at the same time the second locking protrusion 33 is clamped between the locking slide 70 and the mounting base 10 to achieve stable locking of the file plate 30, so that the surface of the board can be filed and planed by the file plate 30.

[0049] When using the above-mentioned multi-functional board trimmer 100, the planer assembly 20 for chamfering or the file plate 30 for trimming the board surface can be installed on the mounting base 10 as needed, thereby achieving the chamfering and smoothing or shaping of the board surface and uneven surfaces. When going to the destination to process the board, only one tool needs to be carried. Compared with the existing technology, it is more convenient to carry and can reduce the burden on workers.

[0050] The aforementioned multi-functional board trimmer 100 has its planer assembly 20 and file plate 30 detachably connected to the mounting base 10. During use, the corresponding chamfering or board smoothing functions can be selected as needed. At the same time, planer assemblies 20 or file plates 30 of different specifications can be installed as needed to meet different chamfering angles or board surface flatness requirements, further improving the applicability of the tool.

[0051] The aforementioned multi-functional board trimmer 100, by rotating the locking member 50, locks or unlocks the planer assembly 20 and the file plate 30, making it easier to assemble and disassemble the planer assembly 20 and the file plate 30. Furthermore, the locking member 50 can simultaneously lock or unlock both the planer assembly 20 and the file plate 30, making it even easier to operate.

[0052] The aforementioned multi-functional board trimmer 100 has a first latch 31 and a second latch 33 that are hook-shaped with opposite openings. When the file plate 30 is inserted into the mounting base 10, it helps to prevent the file plate 30 from accidentally falling off the mounting base 10.

[0053] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A multi-functional board edger, characterized by: The device includes a mounting base, a planer assembly, and a file plate. The mounting base has a fixed window on its side and a positioning groove on its bottom. The positioning groove is used to fit against the edges of the material to be processed. The positioning groove is formed by the bottom surface of the mounting base and the side of the mounting base with the fixed window. The planer assembly includes a tool holder and a planer blade mounted on the tool holder. The tool holder is detachably mounted in the fixed window, and at least a portion of the cutting edge of the planer blade is located in the positioning groove, thereby performing chamfering operations on the edges of the material to be processed. The file plate is detachably connected to the bottom surface of the mounting base, and either the planer assembly or the file plate is selectively mounted on the mounting base.

2. The multi-functional board edger of claim 1, wherein: The fixed window has a slot on its groove wall, and the knife holder has a locking block at one end, which is locked in the slot.

3. The multi-functional board edger of claim 2, wherein: The blade holder has an extension, and the extension and the locking block are located at opposite ends of the blade holder. The multi-functional sheet metal trimmer also includes a locking member rotatably connected to the side of the mounting base. The locking member can rotate under force in a locked position and an unlocked position. When the locking member is in the locked position, it presses the extension against the mounting base, thereby locking the planer assembly. When the locking member is in the unlocked position, it disengages from the extension, allowing the planer assembly to be detached from the fixed window.

4. The multi-functional board edger of claim 3, wherein: The bottom surface of the mounting base is provided with slots and mounting holes spaced apart along the length of the mounting base. The opposite ends of the file plate are respectively provided with a first locking protrusion and a second locking protrusion. The first locking protrusion is inserted into the slot, and the second locking protrusion is movably inserted into the mounting hole. A locking slide is slidably installed at the mounting hole. The locking slide is located on the side of the second locking protrusion closer to the slot. The locking slide can move along the mounting hole under force to clamp the second locking protrusion between the locking slide and the mounting base.

5. The multifunctional sheet metal trimmer as described in claim 4, characterized in that: The locking slide is connected to the locking member via a connecting rod. When the locking member is rotated under force, it can drive the locking slide to reciprocate along the mounting hole via the connecting rod, thereby clamping or releasing the second latching protrusion.

6. The multifunctional sheet metal trimmer as described in claim 5, characterized in that: When the locking member is in the locked position, the locking slide is located away from the slot to hold the second latch between the locking slide and the mounting base; when the locking member is in the unlocked position, the locking slide is located close to the slot, so that the locking slide is away from the second latch.

7. The multi-functional board edger of claim 5, wherein: One end of the connecting rod is rotatably connected to the locking member via a first retaining shaft, and the other end of the connecting rod is vertically mounted with a second retaining shaft; the locking slide is provided with a long strip-shaped groove, which gradually slopes towards the slot along the direction close to the planer assembly; the locking slide is movably fitted onto the second retaining shaft via the groove.

8. The multi-functional board edger of claim 7, wherein: The mounting base has a receiving cavity communicating with the mounting hole, and the side of the mounting base has a movable opening communicating with the receiving cavity; the locking slide and the connecting rod are both received in the receiving cavity, the locking member is movably passed through the movable opening to extend into the receiving cavity, and the connecting rod and the portion of the locking member located in the receiving cavity are rotatably connected.

9. The multifunctional sheet metal trimmer as described in claim 8, characterized in that: The locking component includes a locking arm and a connecting plate. The locking arm is located outside the receiving cavity and is rotatably connected to the mounting base via a connecting shaft. The locking arm can cooperate with the extension to lock the planer assembly. The connecting plate is fixedly connected to the locking arm and movably passes through the movable opening. The connecting rod is rotatably connected to the portion of the connecting plate located in the receiving cavity.

10. The multifunctional sheet metal trimmer as described in claim 9, characterized in that: The locking arm includes a handle and a pressing head formed by bending one end of the handle toward the mounting base. The junction of the handle and the pressing head is rotatably connected to the mounting base via the connecting shaft. When the handle is subjected to force, it can drive the pressing head to rotate around the connecting shaft to press against or release the extension. The handle is fixedly connected to one side of the linkage plate.

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