TWM479182U - Grinding disc apparatus for power tool - Google Patents

Description

Grinding disc device for power tools

The present invention relates to a grinding disc device, and more particularly to a grinding disc device for a power tool.

Generally, in order to clean, decontaminate and derust the metal surface, a grinding disc device is arranged on a power tool, and the metal surface is ground or polished by the power tool rotating the grinding disc device, thereby achieving The cleaning disc cleaning device mainly comprises a grinding disc and a grinding material, and the grinding disc is provided on the top with a sleeve which can be combined with the power tool, and the grinding material is detachably provided. At the bottom of the grinding disc.

The existing grinding disc device for a power tool can grind or polish a metal surface. However, the grinding disc of the conventional grinding disc device has a fixed size of a single gauge and can only be used with a correspondingly sized abrasive material. When you want to process the workpieces of different sizes or shapes (such as the wheel frame of the wheel), you must replace or purchase the entire set of different sizes of grinding discs for use, which will not only increase the cost of use, but also The applicability of the grinding disc device is reduced. Furthermore, the clamping force of the sleeve of the existing grinding disc and the power tool is insufficient, and when the power tool performs high-torque grinding, the sleeve is easily detached from the power tool. Relatively there will be security concerns, and there are improvements.

In order to solve the deficiencies and limitations of the existing grinding disc device, the main purpose of the present invention is to provide a grinding disc device for a power tool, which can be disassembled and assembled, so that the grinding disc device can be different in size or The shape of the workpiece is processed, and the clamping force of the sleeve can be increased, thereby achieving the purpose of reducing the use cost, improving the applicability, and safely using.

Based on the foregoing objective, the present invention solves the prior art problem of a grinding disc device for a power tool, which is provided with an outer cover, a grinding disc and an abrasive material, wherein the outer cover is provided with a cover body and a set a sleeve, the bottom of the lid body is open and forms a chamber inside, the lid body has a sleeve tube communicating with the chamber at a top portion, and the lid body is provided at least in the longitudinal direction of the top surface. a card hole communicating with the chamber, the cover body is convexly provided with at least one latching arm on the inner surface, the sleeve is coupled with the sleeve tube of the cover body; the grinding disc is detachably coupled to the outer cover The body is provided with a body and at least one fastener. The body is provided with a sleeve and a joint plate. The sleeve is disposed in the chamber through the opening of the cover. The joint ring is disposed at the bottom of the sleeve. And located under the cover body, the card fastener is disposed on the body and is provided with the same number of hooks as the cover body of the cover body, and the hook hooks are convexly disposed on the binding plate and combined with the socket And each hook is stuck in a corresponding latching arm of the cover; and the abrasive Combining the abrasive disc positioned below the outer cover.

Further, the abrasive material is bonded to the bottom of the binding plate of the body Hehe.

Further, the grinding disc is provided with a connecting disc combined with the bonding board, the top of the connecting disc is combined with the bonding board, and the connecting disc is provided at the bottom with a radially outward facing ring to extend the bonding board and the cover a connecting plate outside the body, the abrasive material being combined with the bottom of the connecting plate.

Preferably, the connecting disc is provided with a plurality of spaced reinforcing ribs on the top surface of the connecting plate.

Preferably, the sleeve is provided with a set of heads and a cover, the sleeve is combined with the sleeve tube of the cover body and is provided with a coupling rod and a coupling cylinder, and the coupling rod is extended on the sleeve The tube is provided with a locking member that is engaged with the sleeve tube. The coupling tube is convexly formed on the top of the coupling rod and located above the sleeve tube. The coupling tube is concavely provided with a polygonal coupling groove. And a ring groove is laterally recessed in the outer surface, and at least two tapered holes are formed in the ring groove for communicating with the coupling groove, and a protruding hole is formed in each of the tapered holes to extend into the coupling groove The inner clamping member is sleeved with an elastic body on the ring groove, and the clamping member is disposed in the corresponding tapered hole and extends into the coupling groove. The sleeve is sleeved on the outside of the sleeve of the sleeve and abuts the sleeve tube, and the inner surface of the sleeve abuts against the elastic body, so that the elastic body is located between the sleeve and each clamp .

Preferably, the cover body is provided with three card holes which are spaced apart to surround the sleeve tube, and three latching arms are protruded from the inner surface, and each of the latching arms is provided with a latching groove. The disc is provided with three hooks which are respectively arranged to be engaged with the three latching arm slots of the cover.

Preferably, the grinding disc is disposed on a top of one of the hooks An abutting column that can be pressed up and down and abuts against the cover body through a corresponding card hole, wherein the hook is concavely provided with a receiving groove at the top, and the abutting post is telescopically combined with the receiving groove And the hook is provided with an elastic element between the abutting post and the receiving slot.

Preferably, the cover body is provided with an extension plate in the radially outward direction of the open bottom portion, and the bonding plate is abutted against the bottom surface of the extension plate.

The invention provides a grinding disc device for a power tool, and the advantages and enhancements that can be obtained include at least:

1. In the present invention, when the driving rod of the power tool protrudes into the coupling groove, each of the clamping members is abutted against the surface of the driving rod due to the elastic deformation of the elastic body, thereby providing a stable The clamping effect effectively avoids the phenomenon that the sleeve is easily separated from the power tool when the power tool is subjected to high-torque grinding, and the card hooks of the grinding disc are engaged with the respective card holes of the cover body. When the outer cover is rotated with the driving rod, the grinding disc will be separated from the outer cover, thereby providing a safely operated grinding disc device.

2. When the subject is to be ground or polished for different sizes or shapes of the workpiece, the user can change the grinding disc and the abrasive material of another size, or by replacing the grinding disc with the connecting disc. In this way, it is possible to grind or polish the workpieces of different sizes or shapes, which not only can relatively reduce the cost required for use, but also can improve the applicability of the grinding disc device.

10‧‧‧ Cover

11‧‧‧ Cover

111‧‧ ‧ room

112‧‧‧Setting

113‧‧‧Kakong

114‧‧‧ card arm

115‧‧‧ card slot

116‧‧‧ Extension board

12‧‧‧ sleeve

13‧‧‧Set head

131‧‧‧Link rod

132‧‧‧ Combined tube

133‧‧‧Locker

134‧‧‧ joint slot

135‧‧‧ Ring groove

136‧‧‧Conical hole

137‧‧‧Clamp firmware

138‧‧‧ Elastomers

14 ‧ ‧ cover

20‧‧‧ grinding disc

21‧‧‧ body

211‧‧‧Tucket

212‧‧‧Combination board

22‧‧‧Card Firmware

221‧‧‧ hook

222‧‧‧Abutment column

223‧‧‧ 容容

224‧‧‧Flexible components

23‧‧‧Connected disk

231‧‧‧Connecting plate

232‧‧‧ reinforcing ribs

30‧‧‧Wearing materials

50‧‧‧ drive rod

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a first preferred embodiment of the present invention.

Figure 2 is a partial perspective view showing the first preferred embodiment of the present invention.

Figure 3 is a perspective exploded view of the first preferred embodiment of the present invention.

Figure 4 is a side cross-sectional view of the first preferred embodiment of the present invention taken along line 4-4.

Figure 5 is a side elevational cross-sectional view of the first preferred embodiment of the present invention in combination with a power tool.

Figure 6 is a side elevational cross-sectional view showing the operation of the first preferred embodiment of the present invention.

Figure 7 is a partial perspective view showing the second preferred embodiment of the present invention.

Figure 8 is a partial perspective view showing the second preferred embodiment of the present invention.

Figure 9 is a side cross-sectional view of a second preferred embodiment of the present invention.

In order to understand the technical features and practical functions of the present invention in detail, and in accordance with the contents of the specification, the following is further illustrated in the preferred embodiment as shown in the following figure: Please refer to FIG. 1 to FIG. The first preferred embodiment of the present invention is provided with a cover 10, a grinding disc 20 and an abrasive material 30. The outer cover 10 is provided with a cover 11 and a set. a tube 12, wherein the bottom of the lid body 11 is open-shaped, and a hollow chamber 111 is formed therein. The lid body 11 is convexly disposed at a center of the top portion and has a hollow sleeve communicating with the chamber 111. The cover body 11 is provided with at least one hole 113 communicating with the chamber 111 in the longitudinal direction of the top surface. Preferably, the cover body 11 is provided with three spaced apart openings on the top surface to surround the sleeve. The latching hole 114 of the tube 112 is disposed on the inner surface of the cover body 114. The at least one latching arm 114 is provided with a latching slot 115 opposite to the at least one latching hole 113. Preferably, the cover body 11 is radially outwardly arranged on the open bottom. There is an extension plate 116; please refer to FIG. 3 and FIG. 4, the sleeve 12 is combined with the cover body 11 and is provided with a set of a head 13 and a set of covers 14, wherein the sleeve 13 is attached thereto. The sleeves 11 of the cover 11 are combined and provided with a coupling rod 131 and a coupling cylinder 132. The coupling rod 131 is disposed in the sleeve tube 112 and is provided with a lock that is coupled to the sleeve tube 112. The binding member 131 is fixed to the sleeve tube 112 and is formed on the top of the coupling rod 131 and above the sleeve tube 112. The coupling tube 132 is inside the system. A polygonal coupling groove 134 is defined in the recess, and a ring groove 135 is defined in the outer surface of the outer surface, and at least two tapered holes 136 communicating with the coupling groove 134 are formed in the annular groove 135. The ferrule 136 is provided with a clamp 137 extending into the coupling groove 134. Preferably, each of the clamping members 137 can have magnetic properties. In addition, the coupling sleeve 132 is sleeved on the annular groove 135. The elastic body 138 of each of the clamping members 137 is disposed, and the clamping members 137 are disposed in the corresponding tapered holes 136 and extend into the coupling groove 134. The sleeve 14 is sleeved on the outside of the sleeve 132 of the sleeve 13 and abuts the sleeve tube 112. The inner surface of the sleeve 14 abuts the elastic body 138 to make the elastic body 138 is located between the cover 14 and each of the clamps 137; the grinding disc 20 is detachably coupled to the outer cover 10 and is provided with a body 21 and at least one fastener 22, wherein the body 21 is provided with a sleeve 211 and a joint plate 212, the sleeve 211 is disposed in the chamber 111 through the opening of the cover 11, and the joint plate 212 is annularly disposed at the bottom of the sleeve 211 and the bottom surface of the extension plate 116. Close to each other, the at least one card The member 22 is disposed on the body 21 and is provided with a hook 221 of the same number as the latching arm 114 of the cover body 11 , wherein each of the hooks 221 is protruded from the binding plate 212 and is opposite to the bracket 211 . In the L-shaped hook body, each of the hooks 221 is disposed in the latching slot 115 of the corresponding latching arm 114, so that the body 21 can be stably combined with the cover body 11; further, the grinding disc 20 is provided There are three hooks 221 which are respectively arranged to be coupled with the three latching arms 114 of the cover 111, and the grinding disc 20 is provided with an upper and lower pressing movement and a phase through the top of one of the hooks 221 Abutting post 222 corresponding to the cover hole 11 corresponding to the cover hole 113, wherein the hook 221 is recessed at the top with a receiving slot 223, the abutting post is telescopically coupled with the receiving slot 223, and the card The hook 221 is provided with an elastic member 224 between the abutting post and the receiving slot 223, wherein the abutting post 222 and the elastic member 224 are combined by means of integrally forming and forming the hook 221; and the abrasive material 30 Removably coupled to the grinding disc 20 and located below the outer cover 10, further, the abrasive material 30 is permeable or adhesive. The material of the material is a non-woven fabric, a fiber cloth, a sandpaper, a sponge or a black diamond fleece. Wait.

Referring to Figures 7 to 9, a second preferred embodiment of the present invention relates to a grinding disc device for a power tool having a structure similar to that of the first preferred embodiment, and the grinding disc 20 further The connecting plate 23 is combined with the connecting plate 212, wherein the top of the connecting plate 23 is coupled to the binding plate 212 by screwing or riveting, and the connecting plate 23 is radially outwardly facing the bottom ring. Having an extension of the bonding plate 212 and the a connecting plate 231 outside the cover 11 and the abrasive member 30 is coupled to the bottom of the connecting plate 231. Preferably, the connecting plate 23 is provided with a plurality of spaced reinforcing ribs on the top surface of the connecting plate 231. 232.

When the present invention is used, please refer to FIG. 2 and FIG. 5, wherein the grinding disc 20 is rotated relative to the outer cover 10, and the hooks 221 are inserted into the corresponding latching arms 114. The cover member 30 is fixedly coupled to the outer cover 10, and the abrasive member 30 is fixed to the joint plate 212. At this time, a driving tool rod 50 of a power tool is inserted into the sleeve 132 through the cover 14. In the slot 134, when the driving rod 50 is received in the coupling groove 134, each of the clamping members 137 originally extending in the coupling groove 134 is pushed by the outer surface of the driving rod 50 to remove the combination. The groove 134 further deforms the elastic body 138 located between the cover and each of the clamp members 137 by pressing, and similarly, each of the clamp members 137 is simultaneously pushed by the elastically deformed elastic body 138, and the drive The surface of the rod 50 abuts, thereby providing a stable clamping effect, effectively avoiding the phenomenon that the sleeve 12 is easily separated from the power tool during high-torque grinding, thereby providing a safely operable grinding. a disk device, and in addition, each of the hooks 221 and the cover of the grinding disk 20 Each card 11 is provided with arms 114 wedged manner, the case 10 can be avoided with the 10 phase separation during rotation of the drive rod 50, the abrasive disk 20 will cover the outside of the outer cover.

Furthermore, please refer to FIG. 6 when the user wants to grind or polish the workpieces of different sizes or shapes through the present invention, wherein the user can invert the grinding disc 20 relative to the outer cover 10, so that The grinding disc 20 is separated from the outer cover 10 and replaced with a grinding disc 20 having a connecting disc 23 in a second preferred embodiment as shown in FIGS. 7 to 9, which has After the grinding disc 20 of the knot 23 is combined with the outer cover 10, it can also be ground or polished for different sizes or shapes of the workpiece, so when the user wants to grind the workpiece of different sizes or shapes or In the polishing process, only the above two options are required, and the workpieces of different sizes or shapes can be ground or polished, which not only can relatively reduce the cost required for use, but also can improve the applicability of the grinding disc device. .

10‧‧‧ Cover

11‧‧‧ Cover

112‧‧‧Setting

113‧‧‧Kakong

116‧‧‧ Extension board

12‧‧‧ sleeve

134‧‧‧ joint slot

14 ‧ ‧ cover

30‧‧‧Wearing materials

Claims (9)

A grinding disc device for a power tool, comprising: an outer cover, a grinding disc and an abrasive material, wherein: the outer cover is provided with a cover body and a sleeve, the bottom of the cover body is open and inside Forming a chamber, the cover body is convexly disposed with a sleeve tube communicating with the chamber, and the cover body is provided with at least one card hole communicating with the chamber in a longitudinal direction of the top surface, the cover body At least one latching arm is disposed on the inner surface, the sleeve is coupled to the sleeve tube of the cover body; the grinding disc is detachably coupled to the outer cover and is provided with a body and at least one fastener, The main body is provided with a sleeve and a joint plate. The sleeve is disposed in the chamber through the opening of the cover. The joint ring is disposed at the bottom of the sleeve and below the cover. The fastener is disposed on the sleeve. The hook is provided on the main body and has the same number of latching arms as the cover, and the hooks are protruded upwardly from the joint plate and combined with the sleeve, and each hook is hooked on the cover body. Corresponding in the clamping arm; and the abrasive material is combined with the grinding disc to be located below the outer cover. A grinding disc device for a power tool according to claim 1, wherein the abrasive material is combined with a bottom of the binding plate of the body. The grinding disc device for a power tool according to claim 1, wherein the grinding disc is provided with a connecting disc combined with the bonding board, the top of the connecting disc is combined with the bonding board, and the connecting disc is at the bottom diameter. The outwardly facing ring is provided with a connecting plate extending from the bonding plate and the outside of the cover, and the abrasive material is combined with the bottom of the connecting plate. The grinding disc device for a power tool according to claim 3, wherein the connecting disc is provided with a plurality of spaced reinforcing ribs on a top surface of the connecting plate. The grinding disc device for a power tool according to any one of claims 1 to 4, wherein the sleeve is provided with a set of a head and a cover, and the sleeve is combined with the sleeve of the cover And a coupling rod is disposed in the sleeve tube and is provided with a locking member engaged with the sleeve tube. The coupling barrel is convexly formed on the top of the coupling rod and located at Above the sleeve, the joint cylinder is concavely provided with a polygonal coupling groove, and a ring groove is laterally recessed on the outer surface, and at least two cones communicating with the coupling groove are radially penetrated in the ring groove. a clamping hole is disposed in each of the tapered holes, and a clamping body extending into the coupling groove is disposed in the tapered hole, and the coupling sleeve is sleeved with an elastic body that abuts the clamping members, so that the clamping members are respectively a sleeve is disposed in the corresponding tapered hole and extends into the coupling groove, the sleeve is sleeved on the outside of the sleeve of the sleeve and abuts the sleeve tube, and the inner surface of the sleeve is opposite to the sleeve The elastomer phase abuts such that the elastomer is positioned between the cover and each of the clips. The grinding disc device for a power tool according to claim 5, wherein the cover body is provided with three holes arranged at intervals on the top surface to surround the sleeve tube, and three latching arms are protruded on the inner surface. Each of the clamping arms is provided with a latching slot, and the grinding disc is provided with three hooks which are spaced apart and are respectively engaged with the three latching arm latching slots of the cover body. The grinding disc device for a power tool according to claim 6, wherein the grinding disc is provided with a top and bottom pressing movement on the top of one of the hooks and abutting against the cover body via the corresponding card hole. The yoke is disposed on the top of the shank, and the yoke is retractably coupled to the accommodating groove, and the hook is provided with a resilient element between the abutting post and the receiving groove. The grinding disc device for a power tool according to claim 7, wherein the cover body is provided with an extension plate in a radially outward facing ring at the open bottom portion, and the knot is The plywood is placed against the bottom surface of the extension panel. The grinding disc device for a power tool according to any one of claims 1 to 4, wherein the cover body is provided with three spaced apart card holes on the outer surface, the cover body being radially outward in the open bottom portion. The ring is provided with an extension plate which abuts against the bottom surface of the extension plate.