Easy-to-install napping sand tray

Abstract

The utility model relates to the technical field of sand discs, and discloses a napping sand disc convenient to install, which comprises an installation disc, a fixing mechanism is arranged on one side of the installation disc to enable the installation disc to be connected with an installation shaft of a motor, a fixing disc is arranged on the other side of the installation disc and is connected with the installation disc through a positioning mechanism, and a napping sand sheet is arranged on the outer side of the fixing disc. The fixing mechanism comprises a fixing disc and two first fixing nuts, the fixing disc is arranged on one side of the mounting disc, and the two first fixing nuts are arranged on the two sides of the fixing disc and are in threaded connection with a mounting shaft of the motor. The mounting disc is conveniently mounted on the mounting shaft of the polishing motor through the arranged fixing mechanism, the mounting disc is conveniently disassembled and assembled, the napping abrasive disc is conveniently mounted on the mounting disc through the arranged positioning mechanism, when parts are damaged, all the parts do not need to be replaced, and the economic cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sand trays, in particular to a napped sand tray which is easy to install. Background Art

[0002] Sand disc is also called steel paper grinding disc, high-speed grinding disc and grinding disc. Sand disc and steel grinding disc are more commonly used. It is a disc-shaped coated abrasive tool formed by steel paper as the base, silicon carbide or corundum as the abrasive, and bonded by synthetic resin or other synthetic binders. It includes sandpaper and velvet sheet, which are stacked and combined, and several axial through holes are processed on the sandpaper and velvet sheet for connection with grinding equipment.

[0003] After searching, a post-type mesh cloth base sanding disc disclosed in application number CN202020069365.0 includes a main sanding disc and an auxiliary sanding disc, wherein the main sanding disc is installed at the bottom of the auxiliary sanding disc, and both the main sanding disc and the auxiliary sanding disc are post-type, and a first connecting hole is provided at the top of the auxiliary sanding disc, and a second connecting hole connected to the first connecting hole is provided at the bottom of the auxiliary sanding disc. The post-type mesh cloth base sanding disc is a main sanding disc and an auxiliary sanding disc formed by heating and baking the sanding cloth layer, the glass fiber mesh and the mesh cloth base with glue. By adding the glass fiber mesh and then baking at high temperature, the strength of the entire sanding disc is higher. The sanding disc can give full play to the grinding ability of the gravel on the sanding cloth during use, which greatly extends the service life of the sanding cloth. The extension of the service life and the full play of the grinding ability of the gravel also reduce the number of times the user replaces the grinding disc during use and improve the durability of the grinding, thereby improving work efficiency;

[0004] However, the above method still has the following defects in actual use: it is not convenient to disassemble and install, and when the parts of the sand tray are damaged, all the parts need to be replaced, resulting in increased replacement costs. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a napping sanding disc that is easy to install and has the advantages of easy disassembly and replacement of parts, thereby solving the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a napped sanding disc that is easy to install, comprising a mounting disc, a fixing mechanism is provided on one side of the mounting disc, so that the mounting disc is connected to the mounting shaft of the motor, a fixing disc is provided on the other side of the mounting disc, and the fixing disc is connected through a positioning mechanism, and a napped sanding sheet is provided on the outer side of the connecting disc; the fixing mechanism comprises a fixing disc and two first fixing nuts, the fixing disc is arranged on one side of the mounting disc, and the two first fixing nuts are arranged on both sides of the fixing disc, and are threadedly connected to the mounting shaft of the motor; the positioning mechanism comprises a clamping block and a clamping slot, four clamping blocks are provided, the clamping block is provided on the inner side of the connecting disc, and four clamping slots are provided, the clamping slots are provided on the surface of the mounting disc, and are clamped and connected with the clamping block.

[0007] As a preferred technical solution of the utility model, a fixing screw is provided on the inner side of the fixing plate, and four fixing screws are arranged. The surface of the mounting plate is provided with a mounting hole, and four mounting holes are arranged and connected to the fixing screw. A second fixing nut is threadedly provided at one end of the fixing screw.

[0008] As a preferred technical solution of the utility model, a countersunk hole corresponding to the mounting hole is provided on the outer side of the fixing plate to accommodate the second fixing nut.

[0009] As a preferred technical solution of the utility model, a positioning hole is provided on the surface of the card block, a guide seat is provided on the side of the mounting plate, four guide seats are provided, a guide hole communicating with the card slot is provided in the middle of the guide seat, a positioning rod is slidably provided inside the guide hole and engages with the positioning hole.

[0010] As a preferred technical solution of the utility model, a connecting plate is provided at the end of the positioning rod, and a pull handle is provided in the middle of the connecting plate.

[0011] As a preferred technical solution of the utility model, a return spring is provided between the connecting plate and the guide seat, and the return spring is sleeved on the outside of the positioning rod.

[0012] As a preferred technical solution of the utility model, the connecting plate and the brushed sand sheet are bonded together.

[0013] As a preferred technical solution of the utility model, a through hole is provided in the middle of the installation plate, and a fixing hole is provided in the middle of the fixing plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The fixing mechanism provided makes it easy to install the mounting plate on the mounting shaft of the grinding motor and to disassemble and assemble the mounting plate. The positioning mechanism provided makes it easy to install the brushed sanding sheet on the mounting plate. When parts are damaged, there is no need to replace all parts, thereby reducing economic costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is one of the explosion structure schematic diagrams of the utility model;

[0018] Figure 3 This is the second schematic diagram of the explosion structure of the utility model;

[0019] Figure 4 It is a partial enlarged structural schematic diagram of the positioning mechanism of the utility model;

[0020] Figure 5 For this utility model Figure 2 A in the figure is an enlarged structural diagram.

[0021] In the figure: 1. mounting plate; 101. through hole; 2. fixing mechanism; 201. fixing plate; 202. fixing hole; 203. first fixing nut; 204. fixing screw; 205. mounting hole; 206. countersunk hole; 207. second fixing nut; 3. connecting plate; 301. brushed sanding sheet; 4. positioning mechanism; 401. block; 402. positioning hole; 403. slot; 404. guide seat; 405. guide hole; 406. positioning rod; 407. connecting plate; 408. reset spring; 409. handle. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 A brushed sanding disc that is easy to install includes a mounting disc 1, a fixing mechanism 2 is provided on one side of the mounting disc 1, so that the mounting disc 1 is connected to the mounting shaft of the motor, a connecting disc 3 is provided on the other side of the mounting disc 1, and is connected through a positioning mechanism 4, and a brushed sanding sheet 301 is provided on the outer side of the connecting disc 3;

[0024] The connection plate 3 is bonded to the nap sand sheet 301, so that the nap sand sheet 301 can be replaced easily.

[0025] A through hole 101 is provided in the middle of the mounting plate 1 , and a fixing hole 202 is provided in the middle of the fixing plate 201 .

[0026] The fixing mechanism 2 includes a fixing plate 201 and two first fixing nuts 203. The fixing plate 201 is arranged on one side of the mounting plate 1. The two first fixing nuts 203 are arranged on both sides of the fixing plate 201 and are threadedly connected with the mounting shaft of the motor.

[0027] A fixing screw 204 is provided on the inner side of the fixing plate 201, and four fixing screws 204 are provided. A mounting hole 205 is provided on the surface of the mounting plate 1, and four mounting holes 205 are provided, which are connected to the fixing screw 204. A second fixing nut 207 is threadedly provided at one end of the fixing screw 204, which is used to stably connect the fixing plate 201 with the mounting plate 1.

[0028] The outer side of the fixing plate 201 is provided with a countersunk hole 206 corresponding to the mounting hole 205 to accommodate the second fixing nut 207 and prevent the second fixing nut 207 from protruding from the outer surface of the fixing plate 201, so as to facilitate the installation of the fixing plate 201.

[0029] The positioning mechanism 4 includes a card block 401 and a card slot 403. There are four card blocks 401, which are arranged on the inner side of the connecting disk 3. There are four card slots 403, which are arranged on the surface of the mounting disk 1 and are engaged with the card block 401 to preliminarily locate the position of the connecting disk 3.

[0030] A positioning hole 402 is provided on the surface of the card block 401, and a guide seat 404 is provided on the side of the mounting plate 1. Four guide seats 404 are provided. A guide hole 405 communicating with the card slot 403 is provided in the middle of the guide seat 404. A positioning rod 406 is slidably provided inside the guide hole 405 and engaged with the positioning hole 402. The position of the card block 401 is limited by the engagement of the positioning rod 406 with the positioning hole 402.

[0031] A connecting plate 407 is provided at the end of the positioning rod 406, and a pull handle 409 is provided in the middle of the connecting plate 407 to facilitate pulling the positioning rod 406 outward;

[0032] A return spring 408 is provided between the connecting plate 407 and the guide seat 404 , and the return spring 408 is sleeved on the outside of the positioning rod 406 . The positioning rod 406 can be reset by the return spring 408 .

[0033] When in use, firstly, the fixing plate 201 and the two first fixing nuts 203 are mounted on the mounting shaft of the grinding motor, and the position of the fixing plate 201 is limited by the threaded cooperation between the first fixing nut 203 and the mounting shaft, and then the mounting plate 1 is installed on one side of the fixing plate 201, so that the fixing screw 204 is inserted into the corresponding mounting hole 205, and the second fixing nut 207 is threadedly installed on the end of the fixing screw 204 to limit the position of the mounting plate 1;

[0034] Then, the positioning rod 406 is pulled outward through the pull handle 409 so that the end of the positioning rod 406 is extended to the inside of the guide seat 404, and then the brushed sand piece 301 is installed on one side of the mounting plate 1, and the clamping block 401 is inserted into the inside of the clamping groove 403 to limit the position of the brushed sand piece 301, and the pull handle 409 is released. Under the elastic action of the reset spring 408, the positioning rod 406 is reset and engaged with the positioning hole 402 of the clamping block 401 to further limit the position of the brushed sand piece 301. Starting the grinding motor can drive the brushed sand piece 301 to rotate for grinding.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nap sanding disc that is easy to install, comprising a mounting disc (1), characterized in that: A fixing mechanism (2) is provided on one side of the mounting plate (1) so that the mounting plate (1) is connected to the mounting shaft of the motor; a connecting plate (3) is provided on the other side of the mounting plate (1) and connected via a positioning mechanism (4); a brushed sand sheet (301) is provided on the outer side of the connecting plate (3); The fixing mechanism (2) comprises a fixing plate (201) and two first fixing nuts (203), wherein the fixing plate (201) is arranged on one side of the mounting plate (1), and the two first fixing nuts (203) are arranged on both sides of the fixing plate (201) and are threadedly connected to the mounting shaft of the motor; The positioning mechanism (4) comprises a clamping block (401) and a clamping slot (403), four clamping blocks (401) are provided, and the clamping blocks (401) are arranged on the inner side of the connection disk (3), and four clamping slots (403) are provided, and the clamping slots (403) are arranged on the surface of the installation disk (1) and are engaged and connected with the clamping blocks (401).

2. The easy-to-install napping sanding disc according to claim 1 is characterized in that: A fixing screw (204) is provided on the inner side of the fixing plate (201), and four fixing screws (204) are provided. A mounting hole (205) is provided on the surface of the mounting plate (1), and four mounting holes (205) are provided and connected to the fixing screw (204). A second fixing nut (207) is threadedly provided on one end of the fixing screw (204).

3. The easy-to-install napping sanding disc according to claim 2 is characterized in that: The outer side of the fixing plate (201) is provided with a countersunk hole (206) corresponding to the mounting hole (205) for accommodating a second fixing nut (207).

4. The easy-to-install napping sanding disc according to claim 1 is characterized in that: A positioning hole (402) is provided on the surface of the clamping block (401), a guide seat (404) is provided on the side of the mounting plate (1), four guide seats (404) are provided, a guide hole (405) communicating with the clamping slot (403) is provided in the middle of the guide seat (404), and a positioning rod (406) is slidably provided inside the guide hole (405) and engaged with the positioning hole (402).

5. The easy-to-install napping sanding disc according to claim 4 is characterized in that: A connecting plate (407) is provided at the end of the positioning rod (406), and a pull handle (409) is provided in the middle of the connecting plate (407).

6. The easy-to-install napping sanding plate according to claim 5, characterized in that: A return spring (408) is provided between the connecting plate (407) and the guide seat (404), and the return spring (408) is sleeved on the outside of the positioning rod (406).

7. The easy-to-install napping sanding plate according to claim 1 is characterized in that: The connection plate (3) and the brushed sand sheet (301) are bonded together.

8. The easy-to-install napping sanding plate according to claim 1 is characterized in that: A through hole (101) is provided in the middle of the installation plate (1), and a fixing hole (202) is provided in the middle of the fixing plate (201).

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