All-in-one sander

Abstract

The application discloses a multi-in-one sander, which comprises a casing, a connecting part arranged on the casing, a motor-driven output shaft arranged in the center of the connecting part, an eccentric impeller arranged on the output shaft, a connecting seat sleeved on the output shaft, at least two first threaded holes arranged on the connecting seat, a bottom plate arranged on one side of the connecting seat and fixedly connected with the connecting seat, a positioning pin arranged between the casing and the bottom plate, a first positioning hole arranged on the connecting part, one end of the positioning pin inserted into the first positioning hole, a second positioning hole arranged on the bottom plate and corresponding to the first positioning hole, and the other end of the positioning pin inserted into the second positioning hole. When the output shaft rotates, the connecting seat can be driven to vibrate, and the positioning pin can limit the bottom plate from rotating and keep the vibration.

Description

Technical Field

[0001] This application relates to the field of power tool technology, and in particular to an all-in-one sander. Background Technology

[0002] In numerous fields such as wood processing, furniture manufacturing, metal surface treatment, and building decoration, sanders are core equipment that achieves fine surface treatment through vibrating baffles. Their performance directly affects the final quality of the workpiece and the efficiency of subsequent processing. As the industry's requirements for processing precision, ease of operation, and equipment versatility continue to increase, traditional sanders have gradually revealed a series of problems that make it difficult to meet actual production needs.

[0003] When the motor of a sander starts, the output shaft of the motor drives the eccentric block to rotate, causing the base plate to vibrate. There is often a connecting seat between the base plate and the sander. The rotation of the motor output shaft may cause the base plate to rotate, and the rotating base plate may cause danger. Existing sanders, such as the sander base plate easy-to-replace mechanism and sander using it proposed in announcement number CN209970387U, often have a positioning pin formed on the base plate for limiting the rotation of the base plate. However, the one-piece molded positioning pin increases the difficulty of forming and maintaining the base plate. Therefore, how to solve the above problems is the purpose of this application.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0005] Based on this, this application provides an all-in-one sander to solve one of the aforementioned technical problems.

[0006] The technical solution adopted by this application to solve its technical problem is a multi-functional sander, comprising: a housing with a connecting part thereon, an output shaft driven by a motor at the center of the connecting part, and an eccentric impeller on the output shaft; a connecting seat sleeved on the output shaft, the connecting seat having at least two first threaded holes; a base plate disposed on one side of the connecting seat and fixedly connected to the connecting seat; a positioning pin is provided between the housing and the base plate, a first positioning hole is provided on the connecting part, one end of the positioning pin is inserted into the first positioning hole, a second positioning hole corresponding to the position of the first positioning hole is provided on the base plate, and the other end of the positioning pin connected to the first positioning hole is inserted into the second positioning hole; when the output shaft rotates, it can drive the connecting seat to vibrate, and the positioning pin can restrict the base plate to prevent it from rotating and maintain vibration.

[0007] In some embodiments, the base plate is provided with a second threaded hole corresponding to the number and position of the first threaded hole, and the base plate is fixed by screwing the first threaded hole and the second threaded hole.

[0008] In some embodiments, the locating pin is made of rigid plastic.

[0009] In some embodiments, a limiting block is formed on the second positioning hole, and a limiting groove that cooperates with the limiting block is provided on the side of the positioning pin near the second positioning hole.

[0010] In some embodiments, the cross-sections at both ends of the locating pin are circular or arc-shaped.

[0011] In some embodiments, the base plate is a triangular base plate, a circular base plate, or a rectangular base plate.

[0012] In some embodiments, the eccentric impeller has a third threaded hole for installing a counterweight screw.

[0013] The beneficial effects of this application are as follows: by opening the first positioning hole and the second positioning hole for the positioning pin to be placed, the base plate can only vibrate when the rotation is restricted by the positioning pin. At the same time, the detachable positioning pin can be replaced and maintained at will, and the hard plastic material makes the manufacturing cost of the positioning pin low. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of this application.

[0016] Figure 2 This is a schematic diagram of the base plate structure of this application.

[0017] Figure 3 This is a schematic diagram of the exploded structure of this application.

[0018] Figure 4 This is a schematic diagram of the connection structure of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Connecting part; 111. Eccentric impeller; 1111. Third threaded hole; 112. First positioning hole; 2. Connecting seat; 21. First threaded hole; 3. Base plate; 31. Second threaded hole; 32. Second positioning hole; 321. Limiting block; 4. Positioning pin; 41. Limiting groove. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0021] In the embodiments of this application, please refer to Figure 1-4 As shown, this application provides a multi-functional sander, mainly comprising: a housing 1, on which a connecting part 11 is provided, and an output shaft driven by a motor is provided at the center of the connecting part 11, and an eccentric impeller 111 is provided on the output shaft; a connecting seat 2, sleeved on the output shaft, and the connecting seat 2 having at least two first threaded holes 21; a base plate 3, disposed on one side of the connecting seat 2 and fixedly connected to the connecting seat 2; a positioning pin 4 is provided between the housing 1 and the base plate 3, and a first positioning hole 112 is provided on the connecting part 11, one end of the positioning pin 4 is inserted into the first positioning hole 112, and a second positioning hole 32 corresponding to the position of the first positioning hole 112 is provided on the base plate 3, and the other end of the positioning pin 4 connected to the first positioning hole 112 is inserted into the second positioning hole 32; when the output shaft rotates, it can drive the connecting seat 2 to vibrate, and the positioning pin 4 can restrict the base plate 3 to prevent it from rotating and maintain vibration.

[0022] Specifically, when the motor starts, the output shaft and the eccentric impeller 111 will cause the connecting seat 2 to vibrate on its eccentric structure. In order to prevent the base plate 3 from rotating due to the output shaft, the positioning pin 4 provided between the connecting part 11 and the base plate 3 can restrict the rotation of the base plate 3. At the same time, the positioning pin 4 can be easily disassembled and replaced for convenient maintenance.

[0023] For illustrative purposes, the vibration principle and installation relationship of the motor and output shaft driving the base plate 3 can be found in the sander base plate 3 easy-to-replace mechanism and the sander using it proposed in announcement number CN209970387U.

[0024] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0025] Specifically, in order to ensure that the vibration of the connecting seat 2 can be stably transmitted to the base plate 3, the base plate 3 is provided with a second threaded hole 31 corresponding to the number and position of the first threaded hole 21, and the base plate 3 is screwed and fixed through the first threaded hole 21 and the second threaded hole 31.

[0026] Preferably, the positioning pin 4 is made of hard plastic, which is harder and easier to mold than rubber.

[0027] Specifically, a limiting block 321 is formed on the second positioning hole 32, and a limiting groove 41 that cooperates with the limiting block 321 is provided on the side of the positioning pin 4 near the second positioning hole 32. The cooperation between the limiting block 321 and the limiting groove 41 allows the positioning pin 4 to be pre-engaged in the second positioning groove, which facilitates assembly and storage.

[0028] Specifically, the cross-sections of both ends of the positioning pin 4 are circular or arc-shaped. For illustration, the diameter of the side of the positioning pin 4 closest to the first positioning hole 112 should be smaller than the diameter of the first positioning hole 112. Therefore, the base plate 3 can vibrate under the connecting part 11 at a certain amplitude.

[0029] Reference Figure 1-3 As shown, the base plate 3 is a triangular base plate 3, a circular base plate 3, or a rectangular base plate 3.

[0030] Specifically, as an eccentric counterweight for the eccentric impeller 111, the eccentric impeller 111 is provided with a third threaded hole 1111 for installing the counterweight screw.

[0031] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A multi-purpose sander characterized by, include: The housing has a connecting part, and an output shaft driven by a motor is located at the center of the connecting part. An eccentric impeller is mounted on the output shaft. A connecting seat is sleeved on the output shaft, and the connecting seat has at least two first threaded holes; A base plate is disposed on one side of the connecting seat and is fixedly connected to the connecting seat; A positioning pin is provided between the housing and the base plate. A first positioning hole is provided on the connecting part. One end of the positioning pin is inserted into the first positioning hole. A second positioning hole corresponding to the position of the first positioning hole is provided on the base plate. The other end of the positioning pin connected to the first positioning hole is inserted into the second positioning hole. When the output shaft rotates, it can drive the connecting seat to vibrate, and the positioning pin can restrict the base plate to prevent it from rotating and maintain vibration.

2. The all-in-one sander of claim 1, wherein, The base plate has a second threaded hole corresponding to the number and position of the first threaded hole, and the base plate is fixed by screwing the first threaded hole and the second threaded hole.

3. The all-in-one sander of claim 1, wherein, The locating pin is made of hard plastic.

4. The all-in-one sander of claim 1, wherein, A limiting block is formed on the second positioning hole, and a limiting groove that cooperates with the limiting block is opened on the side of the positioning pin near the second positioning hole.

5. The all-in-one sander of claim 1, wherein, The cross-sections at both ends of the positioning pin are circular or arc-shaped.

6. The all-in-one sander of claim 1, wherein, The base plate can be a triangular base plate, a circular base plate, or a rectangular base plate.

7. The all-in-one sander of claim 1, wherein, The eccentric impeller has a third threaded hole for installing a counterweight screw.

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