Dust collection hand grinding block with replaceable bottom plate

Abstract

The utility model relates to the technical field of dust collection hand grinding blocks, and discloses a dust collection hand grinding block with a replaceable bottom plate, an air suction connecting pipe is arranged at the rear part of a dust collection connecting seat, a connecting bottom pad is mounted at the bottom of a grinding pad mounting seat, and a functional grinding pad is detachably mounted at the lower part of the connecting bottom pad through a magic tape; dust collection through holes are formed in the middle of the connecting bottom pad and the middle of the functional grinding pad, dust collection through holes are formed in the upper portion of the functional grinding pad, an air suction connecting pipe is arranged on the upper portion of the grinding pad mounting base, and the air suction connecting pipe is connected with external dust collection equipment, so that friction powder generated during polishing can be directly sucked out and collected; compared with the prior art, friction powder scraps can be prevented from adhering to a machining face, the pollution problem caused by dust is effectively solved, the functional grinding pad is connected and fixed through the hook-and-loop fastener arranged on the lower portion of the connecting bottom pad, compared with a traditional clamping type installation structure, better disassembly and assembly convenience is achieved, an additional hard connecting structure does not need to be additionally arranged on the structure, and the service life of the functional grinding pad is prolonged. And the device has better use economy.

Description

Technical Field

[0001] The utility model relates to the technical field of dust suction hand grinding blocks, in particular to a dust suction hand grinding block with a replaceable bottom plate. Background Art

[0002] Hand grinding block is a commonly used friction polishing tool, which is used to smooth and polish rough or irregular surfaces. The traditional sanding block is a log block or a cork block, which is installed and connected by a mounting plate seat. The mounting plate seat can drive the sanding block to complete the friction polishing of the workpiece surface. As a polishing tool, hand grinding block is often used in the automobile repair industry. The sanding block is used to grind the flat and curved surfaces of the car body before repainting to complete the polishing process of the car body.

[0003] Since it works on the principle of contact friction, friction powder will be generated during the polishing process. The generated friction powder will adhere to the surface of the vehicle body and the operator's hand, affecting the polishing operation. In order to facilitate the replacement of the grinding block, traditional hand grinding blocks mostly use a slot-type installation method. However, since the grinding blocks are mostly made of soft materials, in order to facilitate the installation of the grinding blocks, they must be used with a hard mounting seat. Not only is the disassembly and assembly operation laborious, but the setting of the mounting seat will also increase the manufacturing and use costs of the grinding blocks. Utility Model Content

[0004] The purpose of the utility model is to provide a replaceable bottom plate dust suction hand grinding block to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a replaceable bottom plate dust suction hand grinding block, comprising a grinding pad mounting seat, a dust suction connecting seat is arranged on the upper part of the grinding pad mounting seat, a suction pipe is arranged on the rear part of the dust suction connecting seat, a connecting bottom pad is installed at the bottom of the grinding pad mounting seat, and a grinding pad mechanism is detachably installed at the bottom of the connecting bottom pad;

[0006] The grinding pad mechanism includes a functional grinding pad, and the connecting sides of the functional grinding pad and the connecting base pad are respectively provided with Velcro and a fluff pad. The functional grinding pad is detachably mounted on the lower part of the connecting base pad through the Velcro, and the middle parts of the connecting base pad and the functional grinding pad are both provided with dust suction holes.

[0007] Preferably, a mounting groove is provided at the bottom of the grinding pad mounting seat, and the connecting base pad is fixed to the inner side of the mounting groove.

[0008] Preferably, the Velcro is fixed to the bottom of the connecting base pad, the fluff pad is fixed to the top of the functional grinding pad, the Velcro and the fluff pad are tightly bonded after contact, and the dust collection holes are evenly opened through the middle of the connecting base pad and the functional grinding pad.

[0009] Preferably, the dust suction connecting seat is fixed to the middle part of the top side of the grinding pad mounting seat, the suction pipe is fixed to the rear part of the dust suction connecting seat, a suction grip rod is installed at the rear part of the suction pipe, a suction port is arranged in the middle part of the suction pipe, and the suction port is connected to the dust suction through hole.

[0010] Preferably, a protective shell cover is provided on the upper portion of the dust suction connection seat, and the protective shell cover is snap-fitted to the upper portion of the dust suction connection seat.

[0011] Preferably, the bottom grinding surface of the functional grinding pad is planar.

[0012] Preferably, the bottom grinding surface of the functional grinding pad is concave.

[0013] Preferably, the bottom grinding surface of the functional grinding pad is convex.

[0014] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0015] The hand grinding block adopts a dust suction structure, a dust suction through hole is arranged on the upper part of the functional grinding pad, and a suction pipe is arranged on the upper part of the grinding pad mounting seat. The suction pipe is connected to an external dust suction device, so that the friction powder generated by the polishing process can be directly sucked out and collected during the polishing process, so as to avoid the friction powder from adhering to the processing surface, effectively solving the pollution problem caused by dust, and facilitating the polishing operation. The grinding pad mechanism adopts an adhesive installation method, and the functional grinding pad is connected and fixed by a Velcro tape arranged at the lower part of the connecting base pad. Compared with the traditional clip-on installation structure, it has better disassembly and assembly convenience, and the functional grinding pad can be quickly and flexibly replaced according to processing needs. There is no need to add an additional hard connection structure in the structure, and the functional grinding pad can be directly installed, which greatly reduces the manufacturing cost of the functional grinding pad and makes the device more economical in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall upper structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall lower structure of the utility model;

[0019] Figure 3This is a schematic diagram of the overall split upper structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the overall split upper structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the concave functional grinding pad of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the convex functional grinding pad of the utility model.

[0023] Explanation of the accompanying drawings: 1. Grinding pad mounting seat; 2. Connecting base pad; 3. Grinding pad mechanism; 4. Dust suction connecting seat; 5. Suction pipe; 6. Suction port; 7. Protective shell cover; 8. Velcro; 9. Functional grinding pad; 10. Dust suction hole; 11. Fluff pad. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0026] Embodiment 1

[0027] See also Figure 1-4The utility model provides a technical solution: a replaceable bottom plate dust suction hand grinding block, including a grinding pad mounting seat 1. In order to facilitate dust suction, a dust suction connecting seat 4 is arranged on the upper part of the grinding pad mounting seat 1, and the dust suction connecting seat 4 is fixed to the middle part of the top side of the grinding pad mounting seat 1. In order to facilitate connection with an external dust suction device, a suction pipe 5 is arranged at the rear part of the dust suction connecting seat 4, and the suction pipe 5 is fixed to the rear part of the dust suction connecting seat 4. In order to facilitate holding the device, a suction grip is installed at the rear part of the suction pipe 5, and the suction grip is a plastic grip. The end of the suction grip is fixedly connected to the rear part of the suction pipe 5. The grinding pad mounting seat 1 can be moved by holding the suction grip, and a suction port 6 is arranged in the middle part of the suction pipe 5, through which the dust generated by friction can be sucked in and collected in the dust suction device.

[0028] In order to facilitate the installation with the functional grinding pad 9, a connecting base pad 2 is installed at the bottom of the grinding pad mounting seat 1, and a mounting groove is provided at the bottom of the grinding pad mounting seat 1. The connecting base pad 2 is fixed on the inner side of the mounting groove. The connecting base pad 2 is fixed and can be used as an installation and fixing structure of the functional grinding pad 9. A grinding pad mechanism 3 is detachably installed at the bottom of the connecting base pad 2. The grinding pad mechanism 3 includes a functional grinding pad 9. The base material of the functional grinding pad 9 is an elastic PU product with good flexibility, which is conducive to polishing and does not damage the workpiece. In order to facilitate the installation and fixation of the functional grinding pad 9, Velcro 8 and a fluff pad 11 are respectively provided on the connecting sides of the functional grinding pad 9 and the connecting base pad 2.

[0029] The Velcro 8 is made of high-quality, high-temperature resistant Velcro, and its structure is similar to that of Velcro. It is firmly attached and easy to replace. The Velcro 8 is fixed to the bottom of the connecting base pad 2. The fluff pad 11 is made of high-quality cotton yarn with plump and smooth fluff, thick texture, soft hand feel, wear-resistant and durable, super strong tensile force, very firm and not easy to fall off. The fluff pad 11 is fixed to the top of the functional grinding pad 9. The Velcro 8 and the fluff pad 11 are tightly bonded after contact to achieve the connection and fixation of the functional grinding pad 9. The functional grinding pad 9 is detachably installed on the lower part of the connecting base pad 2 through the Velcro 8. Compared with the traditional clip-on installation structure, it has better disassembly and assembly convenience. The functional grinding pad 9 can be quickly and flexibly replaced according to processing needs, and can be used in a variety of difficult grinding scenes. It is quick, convenient and simple to replace, has better shockproof function, is more comfortable for grinders to use, and has better grinding effect.

[0030] The bottom grinding surface of the functional grinding pad 9 is flat, which is suitable for polishing of flat working surfaces. A dust suction through hole 10 is provided in the middle of the connecting bottom pad 2 and the functional grinding pad 9. The dust suction through hole 10 is evenly penetrated and opened in the middle of the connecting bottom pad 2 and the functional grinding pad 9. The targeted grinding pad structure design can improve the dust collection effect to keep the sandpaper surface dust-free for a long time and reduce the sandpaper sticking phenomenon. The air suction port 6 is connected with the dust suction through hole 10, and the friction powder generated during the polishing process can be directly sucked out and collected, which can avoid the friction powder from adhering to the processing surface, effectively solving the pollution problem caused by dust.

[0031] In order to shield and protect the dust suction connection seat 4, a protective shell cover 7 is arranged on the upper part of the dust suction connection seat 4. The protective shell cover 7 is made of plastic. The protective shell cover 7 is snap-connected to the upper part of the dust suction connection seat 4 through a buckle cover, which can shield and protect the outside of the dust suction connection seat 4.

[0032] Working principle or structural principle, during installation, the suction grip is connected and installed on the rear part of the suction pipe 5, and then the protective shell cover 7 is buckled on the upper part of the dust suction connecting seat 4, after completion, the functional grinding pad 9 of appropriate specifications is selected, and then the functional grinding pad 9 is aligned with the connecting base pad 2 and bonded with the Velcro 8 and the fluff pad 11, and the functional grinding pad 9 is fixedly installed on the bottom of the connecting base pad 2 to complete the installation operation of the device. Similarly, the disassembly operation of the functional grinding pad 9 can be completed by lifting and pulling. When working, hold the suction grip with one hand, and then fit the functional grinding pad 9 to the surface of the processing part. The functional grinding pad 9 is driven to slide back and forth by reciprocating pushing, and the polishing of the processed surface is completed by contact friction.

[0033] Embodiment 2

[0034] See also Figure 5 , which is different from the second embodiment: the bottom grinding surface of the functional grinding pad 9 is concave, and the concave functional grinding pad 9 is suitable for processing convex arc-shaped working surfaces.

[0035] The working principle or structural principle, installation steps and working method are the same as those in the first embodiment.

[0036] Embodiment 3

[0037] See also Figure 6 , which is different from the first and second embodiments, the bottom grinding surface of the functional grinding pad 9 is convex, and the convex functional grinding pad 9 is suitable for processing concave working surfaces.

[0038] The working principle or structural principle, installation steps and working method are the same as those in the first embodiment.

[0039] In summary, the hand grinding block adopts a dust suction structure, a dust suction through hole 10 is arranged on the upper part of the functional grinding pad 9, and a suction pipe 5 is arranged on the upper part of the grinding pad mounting seat 1. The suction pipe 5 is connected to the external dust suction equipment, so that the friction powder generated by the polishing process can be directly sucked out and collected during the polishing process, which can prevent the friction powder from adhering to the processing surface, effectively solve the pollution problem caused by dust, and facilitate the polishing operation. The grinding pad mechanism 3 adopts an adhesive installation method, and the functional grinding pad 9 is connected and fixed by the Velcro 8 arranged at the lower part of the connecting base pad 2. Compared with the traditional clip-on installation structure, it has better disassembly and assembly convenience, and the functional grinding pad 9 can be quickly and flexibly replaced according to processing needs. In terms of structure, there is no need to add additional hard connection structure, and the functional grinding pad 9 can be directly installed, which greatly reduces the manufacturing cost of the functional grinding pad 9 and makes the device more economical in use.

[0040] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0041] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A replaceable bottom plate dust suction hand grinding block, comprising a grinding pad mounting seat (1), characterized in that: A dust suction connection seat (4) is arranged on the upper part of the grinding pad mounting seat (1), a suction pipe (5) is arranged at the rear part of the dust suction connection seat (4), a connecting base pad (2) is installed at the bottom of the grinding pad mounting seat (1), and a grinding pad mechanism (3) is detachably installed at the bottom of the connecting base pad (2); The grinding pad mechanism (3) comprises a functional grinding pad (9), and the connection sides of the functional grinding pad (9) and the connection base pad (2) are respectively provided with a Velcro tape (8) and a fluff pad (11), and the functional grinding pad (9) is detachably mounted on the lower part of the connection base pad (2) via the Velcro tape (8), and dust suction holes (10) are provided in the middle of the connection base pad (2) and the functional grinding pad (9).

2. The replaceable bottom plate dust collecting hand grinding block according to claim 1, characterized in that: The bottom of the grinding pad mounting seat (1) is provided with a mounting groove, and the connecting base pad (2) is fixed to the inner side of the mounting groove.

3. The replaceable bottom plate dust collecting hand grinding block according to claim 2, characterized in that: The Velcro (8) is fixed to the bottom of the connecting base pad (2), and the fluff pad (11) is fixed to the top of the functional grinding pad (9). The Velcro (8) and the fluff pad (11) are tightly bonded after contact, and the dust collection through hole (10) is evenly penetrated and opened in the middle of the connecting base pad (2) and the functional grinding pad (9).

4. The replaceable bottom plate dust collecting hand grinding block according to claim 1, characterized in that: The dust suction connection seat (4) is fixed to the middle part of the top side of the grinding pad mounting seat (1), the air suction pipe (5) is fixed to the rear part of the dust suction connection seat (4), a suction grip rod is installed at the rear part of the air suction pipe (5), and an air suction port (6) is arranged in the middle part of the air suction pipe (5), and the air suction port (6) is connected to the dust suction through hole (10).

5. The replaceable bottom plate dust collecting hand grinding block according to claim 4, characterized in that: A protective shell cover (7) is provided on the upper part of the dust suction connection seat (4), and the protective shell cover (7) is snap-fitted to the upper part of the dust suction connection seat (4).

6. The replaceable bottom plate dust collecting hand grinding block according to claim 1, characterized in that: The bottom grinding surface of the functional grinding pad (9) is flat.

7. The replaceable bottom plate dust collecting hand grinding block according to claim 1, characterized in that: The bottom grinding surface of the functional grinding pad (9) is concave.

8. The replaceable bottom plate dust collecting hand grinding block according to claim 1, characterized in that: The bottom grinding surface of the functional grinding pad (9) is convex.

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