High-efficiency low-noise pneumatic sander

Abstract

The utility model relates to pneumatic polisher technical field especially is a kind of efficient low-noise pneumatic polisher, including polisher body, controller component, adjusting seat subassembly and protective shell component, the upside of polisher body is equipped with controller component, the controller component includes and the upside fixed connection of polisher main part's holding handle, in the utility model, by the holding handle, sliding plate, mounting seat, electromagnet, sliding shell and metal limiting ring being set, the device can protect polishing head by sliding shell and rubber sleeve, by sliding plate cooperation first switch, second switch, to ensure that polisher main part and electromagnet are started simultaneously, by the adsorption of electromagnet to metal limiting ring the sliding shell and rubber sleeve are moved upward, make polishing head expose, ensure that polishing head can normally work, the device can fully protect polishing head, prevent polishing head to break down, guarantee the service life of pneumatic polisher, and simple and quick, save time and labour.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic grinder technology, specifically a high-efficiency, low-noise pneumatic grinder. Background Technology

[0002] Pneumatic grinders are widely used tools in industrial and maintenance fields. They are mainly used for grinding, polishing, and finishing the surfaces of materials such as metal, wood, and plastic. They use gas delivered into the grinder through pipelines to drive pneumatic components to rotate, which in turn drives the grinding head to rotate and achieve grinding. High-efficiency, low-noise pneumatic grinders are characterized by being handheld, highly efficient, and low-noise.

[0003] Some existing high-efficiency, low-noise pneumatic grinders are handheld, and operators may experience hand slippage due to sweaty hands, causing the grinder to fall and damage the grinding disc, thus reducing the lifespan of the pneumatic grinder. Therefore, this paper proposes a high-efficiency, low-noise pneumatic grinder to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a high-efficiency, low-noise pneumatic grinder to solve the problem that some existing high-efficiency, low-noise pneumatic grinders are handheld and the operator's hands may be sweaty, causing the pneumatic grinder to slip and fall, which may lead to damage to the grinding disc.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-efficiency, low-noise pneumatic grinder includes a grinder body, a controller assembly, an adjustment seat assembly, and a protective shell assembly. The controller assembly is located on the upper side of the grinder body. The controller assembly includes a handle fixedly connected to the upper side of the grinder body. A sliding plate is slidably connected above the grip groove of the handle. Two first springs are fixedly connected to the upper side of the sliding plate, with the upper ends of the first springs fixedly connected to the handle. A first switch fixedly connected to the handle is located on the upper side of the sliding plate, and a second switch fixedly connected to the handle is located to the right of the first switch. The adjustment seat assembly is located on the lower side of the controller assembly. The adjustment seat assembly includes a mounting bracket fixedly connected to the outer side of the grinder body. The mounting base has a first sliding groove on its lower side, a set of second sliding grooves on the inner side of the first sliding groove, and a receiving groove on the upper side of each of the second sliding grooves. An electromagnet located inside the mounting base is fixedly connected to the upper side of the first sliding groove. A protective shell assembly is provided on the lower side of the adjusting base assembly. The protective shell assembly includes a sliding shell that is slidably connected to the lower side of the mounting base. A set of sliding blocks that are slidably connected to the mounting base are fixedly connected to the uppermost inner side of the sliding shell. A second spring is fixedly connected to the upper side of each sliding block. The upper end of the second spring is fixedly connected to the mounting base. A metal limiting ring is fixedly connected to the uppermost outer side of the sliding shell. A rubber sleeve is fixedly connected to the lower end of the sliding shell.

[0007] Preferably, the grinding machine body includes a grinding machine body, an air inlet pipe is installed on the front side of the grinding machine body, and a grinding head is installed on the lower side of the grinding machine body.

[0008] Preferably, the lower end of the grip is fixedly connected to the mounting base, and there is a gap between the upper side of the sliding plate and the first switch and the second switch. The first switch and the second switch are both located between two first springs.

[0009] Preferably, the second sliding groove and the receiving groove are both circumferentially distributed, the sliding blocks are all located in the second sliding groove, and the upper half of the second spring is all located in the receiving groove.

[0010] Preferably, the metal limiting ring is located within the first sliding groove, the outer side of the metal limiting ring is in contact with the mounting base, and the metal limiting ring is located directly below the electromagnet.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the device, through the inclusion of a grip, sliding plate, mounting base, electromagnet, sliding shell, and metal limiting ring, protects the grinding head via the sliding shell and rubber sleeve. The sliding plate, in conjunction with the first and second switches, ensures simultaneous activation of the grinding machine body and the electromagnet. The electromagnet's attraction to the metal limiting ring causes the sliding shell and rubber sleeve to move upwards, exposing the grinding head and ensuring its normal operation. This device provides ample protection for the grinding head, preventing damage from drops and extending the lifespan of the pneumatic grinder. Furthermore, it is simple, quick, and time-saving to operate. Attached Figure Description

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

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of the grinding machine of this utility model;

[0016] Figure 4 This is a cross-sectional view of the controller assembly structure of this utility model;

[0017] Figure 5 This is a cross-sectional view of the adjusting seat assembly of this utility model;

[0018] Figure 6 This is a schematic diagram of the protective shell assembly structure of this utility model.

[0019] In the diagram: 1. Grinding machine body; 11. Grinding machine main body; 12. Air inlet pipe; 13. Grinding head; 2. Controller assembly; 21. Handle; 22. Sliding plate; 23. First spring; 24. First switch; 25. Second switch; 3. Adjustment seat assembly; 31. Mounting seat; 32. First sliding groove; 33. Second sliding groove; 34. Receiving groove; 35. Electromagnet; 4. Protective shell assembly; 41. Sliding shell; 42. Sliding block; 43. Second spring; 44. Metal limit ring; 45. Rubber sleeve. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0022] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0023] Please see Figure 1-6 This utility model provides a technical solution:

[0024] A high-efficiency, low-noise pneumatic grinder includes a grinder body 1, a controller assembly 2, an adjustment seat assembly 3, and a protective shell assembly 4. The controller assembly 2 is located on the upper side of the grinder body 1. The controller assembly 2 includes a handle 21 fixedly connected to the upper side of the grinder body 11. A sliding plate 22 is slidably connected above the grip groove of the handle 21. Two first springs 23 are fixedly connected to the upper side of the sliding plate 22, and the upper ends of the first springs 23 are fixedly connected to the handle 21. A first switch 24 fixedly connected to the handle 21 is located on the upper side of the sliding plate 22. A second switch 25 fixedly connected to the handle 21 is located to the right of the first switch 24. The adjustment seat assembly 3 is located on the lower side of the controller assembly 2. The adjustment seat assembly 3 includes a mounting base 3 fixedly connected to the outer side of the grinder body 11. 1. The lower side of the mounting base 31 is provided with a first sliding groove 32, and the inner side of the first sliding groove 32 is provided with a set of second sliding grooves 33. The upper side of each of the second sliding grooves 33 is provided with a receiving groove 34. An electromagnet 35 located inside the mounting base 31 is fixedly connected to the upper side of the first sliding groove 32. The lower side of the adjusting base assembly 3 is provided with a protective shell assembly 4. The protective shell assembly 4 includes a sliding shell 41 that is slidably connected to the lower side of the mounting base 31. The uppermost inner side of the sliding shell 41 is fixedly connected with a set of sliding blocks 42 that are slidably connected to the mounting base 31. The upper side of each sliding block 42 is fixedly connected with a second spring 43. The upper end of the second spring 43 is fixedly connected to the mounting base 31. The uppermost outer side of the sliding shell 41 is fixedly connected with a metal limiting ring 44. The lower end of the sliding shell 41 is fixedly connected with a rubber sleeve 45.

[0025] The grinding machine body 1 includes a grinding machine body 11, an air inlet pipe 12 is installed on the front side of the grinding machine body 11, and a grinding head 13 is installed on the lower side of the grinding machine body 11. The grinding head 13 can be used to grind the workpiece. The lower end of the handle 21 is fixedly connected to the mounting base 31. There is a gap between the upper side of the sliding plate 22 and the first switch 24 and the second switch 25. The first switch 24 and the second switch 25 are both located between two first springs 23. Pressing the first switch 24 and the second switch 25 will start the grinding machine body 11 and the electromagnet 35. The second sliding groove 33 and the receiving groove 34 are both circumferential. The sliding blocks 42 are all located in the second sliding groove 33, and the upper half of the second spring 43 is located in the receiving groove 34. When the device falls, the rubber sleeve 45 can achieve the purpose of buffering and vibration reduction by its own elasticity, the elasticity of the second spring 43, and the friction between the sliding block 42 and the mounting base 31. The metal limiting ring 44 is located in the first sliding groove 32, and the outer side of the metal limiting ring 44 is in contact with the mounting base 31. The metal limiting ring 44 is located directly below the electromagnet 35. The attraction force of the electromagnet 35 on the metal limiting ring 44 causes the sliding shell 41 and the rubber sleeve 45 to move upward, so that the grinding head 13 is exposed.

[0026] Working process: This device is powered by an external power source and requires a compressed air supply. Before using the device, connect the air inlet pipe 12 to the compressed air supply and connect the grinder body 11 to the power source. The first switch 24 and the second switch 25 are electrically connected to the grinder body 11 and the electromagnet 35, respectively. The operating status of the grinder body 11 and the electromagnet 35 can be adjusted by the first switch 24 and the second switch 25, respectively. The sliding block 42 and the second sliding groove 33 of the mounting base 31 are both rough contact surfaces, and there is high friction between the sliding block 42 and the mounting base 31. All of these are existing technologies. When using this device, the operator first holds the handle 21 and presses the sliding plate 22. The sliding plate 22 compresses the first spring 23, at which point the first switch 24 and the second switch 25 are pressed, activating the grinder body 11 and the electromagnet 35. The electromagnet 35 generates an upward attraction force on the metal limiting ring 44, causing the metal limiting ring 44 and the sliding shell 41 located in the first sliding groove 32 to move upward relative to the mounting base 31. During this process, the sliding block 42 located in the second sliding groove 33 moves upward with the sliding shell 41, compressing the second spring 43. The compressed second spring 43 is then contained within the mounting base. Within the groove 34, the rubber sleeve 45 at the lower end of the metal limiting ring 44 can move to a position higher than the lower end of the grinding head 13. Simultaneously, the sliding plate 22 supplies air to the grinding machine body 11, causing the grinding head 13 to rotate. The grinding head 13 then grinds the workpiece. If the operator slips due to sweaty hands or other unexpected situations, causing the handle 21 to disengage, the sliding plate 22 will move downwards under the elastic force of the first spring 23. The first switch 24 and the second switch 25 will then automatically reset, stopping the grinding machine body 11 and the electromagnet 35. The sliding block 42 will then be released by the second spring 43. Under the action of elastic force, it moves downward, which in turn causes the sliding shell 41 to drive the metal limiting ring 44 and the rubber sleeve 45 to move downward, so that the rubber sleeve 45 moves to a position lower than the lower end of the grinding head 13. The metal limiting ring 44 has high mechanical strength, and the rubber sleeve 45 has elasticity. The metal limiting ring 44 and the rubber sleeve 45 can protect the grinding head 13. There is high friction between the sliding block 42 and the mounting base 31. When the device is dropped, the rubber sleeve 45 can achieve the purpose of buffering and shock absorption by its own elasticity, in combination with the elasticity of the second spring 43 and the friction between the sliding block 42 and the mounting base 31, thus effectively protecting the grinding head 13.This device protects the grinding head 13 using a sliding shell 41 and a rubber sleeve 45. A sliding plate 22, in conjunction with the first switch 24 and the second switch 25, ensures that the grinder body 11 and the electromagnet 35 start simultaneously. The attraction force of the electromagnet 35 on the metal limiting ring 44 causes the sliding shell 41 and the rubber sleeve 45 to move upwards, exposing the grinding head 13 and ensuring its normal operation. This device provides ample protection for the grinding head 13, preventing it from being damaged by drops, thus extending the service life of the pneumatic grinder. It is also simple, quick, and saves time and effort in operation.

[0027] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, low-noise pneumatic grinder, comprising a grinder body (1), a controller assembly (2), an adjustment seat assembly (3), and a protective shell assembly (4), characterized in that: The upper side of the grinding machine body (1) is provided with a controller assembly (2). The controller assembly (2) includes a handle (21) fixedly connected to the upper side of the grinding machine body (11). A sliding plate (22) is slidably connected above the grip groove of the handle (21). Two first springs (23) are fixedly connected to the upper side of the sliding plate (22). The upper end of the first spring (23) is fixedly connected to the handle (21). A first switch (24) fixedly connected to the handle (21) is provided on the upper side of the sliding plate (22). A second switch (25) fixedly connected to the handle (21) is provided on the right side of the first switch (24). An adjustment seat assembly (3) is provided on the lower side of the controller assembly (2). The adjustment seat assembly (3) includes a mounting seat (31) fixedly connected to the outer side of the grinding machine body (11). A first sliding groove (32) is provided on the lower side of the mounting seat (31). The inner side of the first sliding groove (32) is provided with a set of second sliding grooves (33), and the upper side of each of the second sliding grooves (33) is provided with a receiving groove (34). The upper side of the first sliding groove (32) is fixedly connected to an electromagnet (35) located inside the mounting base (31). The lower side of the adjusting seat assembly (3) is provided with a protective shell assembly (4). The protective shell assembly (4) includes a sliding shell (41) that is slidably connected to the lower side of the mounting base (31). The uppermost inner side of the sliding shell (41) is fixedly connected to a set of sliding blocks (42) that are slidably connected to the mounting base (31). The upper side of each sliding block (42) is fixedly connected to a second spring (43). The upper end of the second spring (43) is fixedly connected to the mounting base (31). The uppermost outer side of the sliding shell (41) is fixedly connected to a metal limiting ring (44). The lower end of the sliding shell (41) is fixedly connected to a rubber sleeve (45).

2. The high-efficiency, low-noise pneumatic grinder according to claim 1, characterized in that: The grinding machine body (1) includes a grinding machine body (11), an air inlet pipe (12) is installed on the front side of the grinding machine body (11), and a grinding head (13) is installed on the lower side of the grinding machine body (11).

3. The high-efficiency, low-noise pneumatic grinder according to claim 1, characterized in that: The lower end of the grip (21) is fixedly connected to the mounting base (31), and there is a gap between the upper side of the sliding plate (22) and the first switch (24) and the second switch (25). The first switch (24) and the second switch (25) are both located between the two first springs (23).

4. The high-efficiency, low-noise pneumatic grinder according to claim 1, characterized in that: The second sliding groove (33) and the receiving groove (34) are both circumferentially distributed. The sliding blocks (42) are all located in the second sliding groove (33), and the upper half of the second spring (43) is located in the receiving groove (34).

5. The high-efficiency, low-noise pneumatic grinder according to claim 1, characterized in that: The metal limiting ring (44) is located in the first sliding groove (32), the outer side of the metal limiting ring (44) is in contact with the mounting base (31), and the metal limiting ring (44) is located directly below the electromagnet (35).

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