An electric planer with a high-precision adjustment plate

Abstract

This utility model discloses an electric planer with a high-precision adjusting plate, including a machine housing, an adjusting base plate on the front side of the bottom of the machine housing, and a fixed base plate on the rear side of the bottom of the machine housing. An adjusting cavity is opened at the front end inside the machine housing, and a telescopic seat is located at the bottom of the adjusting cavity. A lifting rod is provided on the upper surface of the adjusting base plate, an adjusting knob is located at the top of the front end of the machine housing, and a nut sleeve is located at the bottom of the adjusting knob. A limit ring is provided at the bottom of the surface of the nut sleeve, and a locking block is provided on the surface of the nut sleeve, forming a limiting groove between the locking block and the limit ring. A limit block is provided at the top of the inner wall of the adjusting cavity. In this utility model, the gap between the nut sleeve and the machine housing is controlled to 0.1-0.2 mm on one side, and the coaxial design of the nut sleeve, lifting rod, and adjusting knob ensures the concentricity and perpendicularity of the nut sleeve and the machine housing. This ensures high-precision adjustment of the adjusting base plate when controlling its lifting and lowering, thus avoiding the problem of unevenness between the adjusting base plate and the fixed base plate.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and in particular to an electric planer with a high-precision adjustment plate. Background Technology

[0002] An electric planer is a handheld power tool mainly used for trimming wood boards and framing frames. Its core features are portability and handheld operation. It uses an electric motor to drive a high-speed rotating planer blade to perform on-site and flexible planing of the wood surface. It is widely suitable for non-batch, highly mobile work scenarios such as personal DIY, home decoration sites, and small woodworking workshops. The flatness of the planer's bottom surface determines the planing accuracy when the user uses it. Therefore, the better the flatness of the planer's bottom surface, the more precise the planing will be.

[0003] However, when assembling a traditional electric planer, the adjustment plate is subject to significant deviations due to machine casing deformation and assembly errors. This results in poor flatness between the adjustment plate and the fixed plate, causing the wood to easily develop wavy patterns or chipped edges, leading to reduced processing accuracy and higher wood loss.

[0004] Therefore, there is an urgent need for an electric planer with a high-precision adjustment plate. This electric planer should be able to control the gap between the nut sleeve and the machine housing, reduce the assembly error of the adjustment plate, improve the flatness of the front and rear plates, and effectively reduce the shaking amplitude of the adjustment plate caused by vibration during processing. Utility Model Content

[0005] To meet the above requirements, this utility model provides an electric planer with a high-precision adjustment plate to solve the problems mentioned in the background art.

[0006] To solve the above technical problems, this utility model achieves the following technical solution: an electric planer with a high-precision adjusting plate, comprising a housing, an adjusting base plate provided on the front side of the bottom of the housing, a fixed base plate provided on the rear side of the bottom of the housing, an adjusting cavity provided at the front end of the housing, a telescopic seat provided at the bottom of the adjusting cavity and connected to the adjusting base plate; a lifting rod extending into the telescopic seat is fixedly installed at the center of the upper surface of the adjusting base plate, an adjusting knob is provided at the top of the front end of the housing, a nut sleeve threadedly connected to the top of the lifting rod is provided at the bottom of the adjusting knob; a limiting ring is provided at the bottom of the surface of the nut sleeve, a locking block is provided on the surface of the nut sleeve and at the top of the limiting ring, a limiting groove is formed between the locking block and the limiting ring, and a limiting block extending into the limiting groove is fixedly installed at the top of the inner wall of the adjusting cavity.

[0007] Furthermore, the single-sided gap between the housing and the nut sleeve is 0.1-0.2 mm.

[0008] Furthermore, the bottom of the nut sleeve is provided with a storage groove, the diameter of which is larger than the diameter of the lifting rod, and the inside of the nut sleeve is provided with a threaded groove that matches the surface of the lifting rod.

[0009] Furthermore, the lifting rod includes a threaded portion and a connecting portion. The threaded portion is located at the top of the connecting portion and is threadedly connected to the nut sleeve. The bottom of the connecting portion is fixedly connected to the upper surface of the adjusting base plate.

[0010] Furthermore, the surface of the connecting part is designed to be smooth, and the diameter of the connecting part is larger than the diameter of the threaded part.

[0011] Furthermore, the telescopic seat consists of a fixed part and a telescopic part. The fixed part is fixedly connected to the top of the inner wall of the adjustment cavity, and the telescopic part is fixedly connected to the upper surface of the adjustment base plate.

[0012] Furthermore, a spring cavity is provided inside the telescopic part, and a buffer spring is provided in the inner cavity of the telescopic part.

[0013] Furthermore, the adjusting knob, the nut sleeve, and the lifting rod are designed with the same axis.

[0014] Furthermore, the bottom of the adjustment knob is provided with a mounting groove that matches the nut sleeve, and the top of the nut sleeve is fixedly connected to the inner wall of the mounting groove by bolts.

[0015] The beneficial technical effects of this utility model are as follows: This high-precision adjusting plate electric planer, through the design of the limiting block and the locking block, fixes the position of the nut sleeve, ensuring that the gap between the nut sleeve and the machine housing is controlled within 0.1-0.2mm on one side. Furthermore, the coaxial design of the nut sleeve, the lifting rod, and the adjusting knob ensures the concentricity and perpendicularity of the nut sleeve and the machine housing. When rotating the adjusting knob to control the raising and lowering of the adjusting base plate, the high-precision adjustment of the adjusting base plate is ensured by controlling the size between the machine housing and the nut sleeve. This avoids the problem of poor flatness between the adjusting base plate and the fixed base plate caused by poor fit between the nut sleeve and the machine housing during the adjustment process of traditional electric planers. Attached Figure Description

[0016] Figure 1 This is a front sectional view of the structure of this utility model; Figure 2 This is a partial cross-sectional schematic diagram of the structure of the adjustment knob and the housing of this utility model; Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0017] 1. Adjusting base plate; 2. Fixed base plate; 3. Machine housing; 31. Adjusting cavity; 32. Limiting block; 4. Nut sleeve; 41. Locking block; 42. Storage slot; 5. Adjusting knob; 6. Lifting rod; 61. Threaded part; 62. Connecting part; 7. Telescopic seat; 71. Telescopic part; 72. Buffer spring; 8. Limiting ring. Detailed Implementation

[0018] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] See appendix Figures 1-3 As shown, an electric planer with a high-precision adjustable plate according to Embodiment 1 includes a housing 3. An adjustable base plate 1 is provided on the front side of the bottom of the housing 3, and a fixed base plate 2 is provided on the rear side of the bottom of the housing 3. An adjustment cavity 31 is provided at the front end of the interior of the housing 3. A telescopic seat 7 connected to the adjustable base plate 1 is provided at the bottom of the inner cavity of the adjustment cavity 31. A lifting rod 6 extending into the telescopic seat 7 is fixedly installed at the center of the upper surface of the adjustable base plate 1. An adjustment knob 5 is provided at the top of the front end of the housing 3. A nut sleeve 4 threadedly connected to the top of the lifting rod 6 is provided at the bottom of the adjustment knob 5. The nut sleeve 4 has a threaded groove adapted to the surface of the lifting rod 6. The bottom of the adjustment knob 5 has an installation groove adapted to the nut sleeve 4. The top of the nut sleeve 4 is fixedly connected to the inner wall of the installation groove by bolts. The single-sided gap between the housing 3 and the nut sleeve 4 is 0.1-0.2mm. The adjustment knob 5, the nut sleeve 4 and the lifting rod 6 are designed with the same axis.

[0020] By setting the adjustment knob 5, when the adjustment knob 5 rotates forward, the adjustment knob 5 drives the nut sleeve 4 to rotate synchronously, so that the nut sleeve 4 and the lifting rod 6 are connected by threads, and the lifting rod 6 is driven to move downward through the threads. Then the lifting rod 6 drives the adjustment base plate 1 to move downward for adjustment. When the adjustment knob 5 rotates in reverse, the adjustment knob 5 drives the adjustment base plate 1 to move upward through the nut sleeve 4 and the lifting rod 6 for adjustment.

[0021] By controlling the single-sided gap between the nut sleeve 4 and the machine housing 3 to 0.1-0.2mm, and coaxially designing the nut sleeve 4, lifting rod 6, and adjusting knob 5, the concentricity and perpendicularity of the nut sleeve 4 and the machine housing 3 are ensured. When rotating the adjusting knob 5 to control the lifting of the adjusting base plate 1, the high-precision adjustment of the adjusting base plate 1 is ensured by controlling the size between the machine housing 3 and the nut sleeve 4. This avoids the problem of poor flatness between the adjusting base plate 1 and the fixed base plate 2 caused by poor fit between the nut sleeve 4 and the machine housing 3 during the traditional electric planer adjustment process.

[0022] A limiting ring 8 is provided at the bottom of the surface of the nut sleeve 4, and a locking block 41 is provided on the surface of the nut sleeve 4 and at the top of the limiting ring 8. A limiting groove is formed between the locking block 41 and the limiting ring 8. A limiting block 32 extending into the limiting groove is fixedly installed on the top of the inner wall of the adjusting cavity 31. This can limit the nut sleeve 4 and prevent it from moving upward or downward due to vibration, ensuring that the single-sided gap between the nut sleeve 4 and the housing 3 is controlled within 0.1-0.2mm on one side. The bottom of the nut sleeve 4 is provided with a storage groove 42, the diameter of which is larger than the diameter of the lifting rod 6.

[0023] By setting up the storage groove 42, when the top of the lifting rod 6 moves to the top of the threaded groove of the nut sleeve 4, the storage groove 42 can store the connecting part 62, avoiding collision between the connecting part 62 and the bottom of the nut sleeve 4.

[0024] Furthermore, the lifting rod 6 includes a threaded part 61 and a connecting part 62. The threaded part 61 is located at the top of the connecting part 62. The threaded part 61 is threadedly connected to the nut sleeve 4, and the bottom of the connecting part 62 is fixedly connected to the upper surface of the adjusting base plate 1. The surface of the connecting part 62 is designed to be smooth, and the diameter of the connecting part 62 is larger than the diameter of the threaded part 61.

[0025] The design of the connecting part 62 allows the threaded part 61 to move vertically by moving through the thread, and the connecting part 62 can drive the adjusting base plate 1 to move vertically. Furthermore, the design of the connecting part 62 having a larger diameter than the threaded part 61 limits the top of the connecting part 62 to the top of the inner wall of the storage groove 42, preventing the threaded part 61 from moving excessively upward through the thread.

[0026] Furthermore, the telescopic seat 7 is composed of a fixed part and a telescopic part 71. The fixed part is fixedly connected to the top of the inner wall of the adjustment cavity 31, and the telescopic part 71 is fixedly connected to the upper surface of the adjustment base plate 1. A spring cavity is opened inside the telescopic part 71, and a buffer spring 72 is provided in the inner cavity of the telescopic part 71.

[0027] The telescopic seat 7 can limit the adjustment base plate 1, so that the adjustment base plate 1 can only move vertically. When the nut sleeve 4 drives the lifting rod 6 to move through the thread, the lifting rod 6 will not rotate synchronously with the nut sleeve 4 after the adjustment base plate 1 is limited by the telescopic seat 7, thus ensuring the stability of the movement. Furthermore, when vibration occurs during the processing, the buffer spring 72 in the telescopic part 71 can buffer the vibration, further reducing the swaying amplitude of the adjustment base plate 1 and ensuring the flatness of the adjustment base plate 1.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit 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 technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An electric planer with a high-precision adjustment plate, characterized in that: Includes a housing (3), an adjustment base plate (1) is provided on the front side of the bottom of the housing (3), a fixed base plate (2) is provided on the rear side of the bottom of the housing (3), an adjustment cavity (31) is provided at the front end of the interior of the housing (3), and a telescopic seat (7) connected to the adjustment base plate (1) is provided at the bottom of the inner cavity of the adjustment cavity (31). A lifting rod (6) extending into the telescopic seat (7) is fixedly installed at the center of the upper surface of the adjusting base plate (1). An adjusting knob (5) is provided at the top of the front end of the housing (3). A nut sleeve (4) is provided at the bottom of the adjusting knob (5) and threadedly connected to the top of the lifting rod (6). A limiting ring (8) is provided at the bottom of the surface of the nut sleeve (4), and a locking block (41) is provided on the surface of the nut sleeve (4) and at the top of the limiting ring (8). A limiting groove is formed between the locking block (41) and the limiting ring (8), and a limiting block (32) extending into the limiting groove is fixedly installed on the top of the inner wall of the adjustment cavity (31).

2. The electric planer with a high-precision adjusting plate according to claim 1, characterized in that, The single-sided gap between the housing (3) and the nut sleeve (4) is 0.1-0.2mm.

3. The electric planer with a high-precision adjusting plate according to claim 1, characterized in that, The bottom of the nut sleeve (4) is provided with a storage groove (42), the diameter of the storage groove (42) is larger than the diameter of the lifting rod (6), and the inside of the nut sleeve (4) is provided with a threaded groove that matches the surface of the lifting rod (6).

4. The electric planer with a high-precision adjusting plate according to claim 1, characterized in that, The lifting rod (6) includes a threaded part (61) and a connecting part (62). The threaded part (61) is located at the top of the connecting part (62). The threaded part (61) is threadedly connected to the nut sleeve (4), and the bottom of the connecting part (62) is fixedly connected to the upper surface of the adjusting base plate (1).

5. The electric planer with a high-precision adjusting plate according to claim 4, characterized in that, The surface of the connecting part (62) is designed to be smooth, and the diameter of the connecting part (62) is larger than the diameter of the threaded part (61).

6. The electric planer with a high-precision adjusting plate according to claim 1, characterized in that, The telescopic seat (7) consists of a fixed part and a telescopic part (71). The fixed part is fixedly connected to the top of the inner wall of the adjustment cavity (31), and the telescopic part (71) is fixedly connected to the upper surface of the adjustment base plate (1).

7. The electric planer with a high-precision adjusting plate according to claim 6, characterized in that, The telescopic part (71) has a spring cavity inside, and a buffer spring (72) is provided in the inner cavity of the telescopic part (71).

8. The electric planer with a high-precision adjusting plate according to claim 1, characterized in that, The adjustment knob (5), the nut sleeve (4), and the lifting rod (6) are designed with the same axis.

9. The electric planer with a high-precision adjusting plate according to claim 1, characterized in that, The bottom of the adjustment knob (5) is provided with an installation groove that is compatible with the nut sleeve (4), and the top of the nut sleeve (4) is fixedly connected to the inner wall of the installation groove by bolts.

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