Screw locking tool

Abstract

The utility model discloses a screw locking tool, which aims to position a nut and limit the rotation of the nut so as to facilitate the screwing-in of a screw and improve the assembly efficiency of a fan motor shell, and adopts the technical scheme that the screw locking tool comprises a first block body and a second block body which are sequentially arranged from bottom to top, the first block body is made of a rubber material, and the second block body is made of a rubber material; the second block body is made of a metal material; a plurality of positioning holes which are opened upwards are formed in the second block body, the cross section of each positioning hole in the horizontal direction is polygonal, a clearance hole which is opened upwards is formed in the center of the first block body, and the plurality of positioning holes are uniformly distributed in the circumferential direction of the clearance hole; a plurality of positioning holes are formed in the base, a plurality of positioning columns are further included, the lower ends of the positioning columns are provided with inserting heads matched with the positioning holes, the inserting heads are inserted into the positioning holes, the upper ends of the positioning columns are provided with containing grooves opened upwards, and the containing grooves are matched with nuts.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan motor assembly, and more specifically relates to a screw locking tool. Background Art

[0002] During the production process of the fan motor, it is necessary to assemble a shell. The shell is generally two, and the two shells are matched to cover the outside of the motor coil to protect the motor coil;

[0003] In order to reduce the weight of the motor, the shell will be relatively thin. Therefore, the shell cannot be directly processed with threaded holes. In order to facilitate disassembly, the two shells can only be strung together and fixed by using screws and nuts. In the prior art, the assembly of the shell still has a manual operation method, which requires clamping the nut first and then screwing in the screw. The operation is cumbersome and the assembly efficiency is relatively low. Utility Model Content

[0004] The main purpose of the utility model is to provide a screw locking tool, which is intended to position a nut and limit the rotation of the nut, thereby facilitating the screwing in of the screw and improving the assembly efficiency of the fan motor housing.

[0005] According to a first aspect of the utility model, a screw locking tool is provided, comprising a first block and a second block arranged in sequence from bottom to top, the first block is made of rubber material, and the second block is made of metal material;

[0006] The second block is provided with a plurality of positioning holes open upwards, the cross section of the positioning holes in the horizontal direction is a polygon, the center of the first block is provided with an air avoidance hole open upwards, and the plurality of positioning holes are evenly distributed around the air avoidance hole;

[0007] It also includes a plurality of positioning columns, wherein the lower ends of the positioning columns are provided with plug connectors adapted to the positioning holes, the plug connectors are inserted into the positioning holes, and the upper ends of the positioning columns are provided with accommodating grooves open upward, and the accommodating grooves are adapted to the nuts.

[0008] In the above-mentioned screw locking tool, a positioning pin is provided in the receiving groove, the positioning pin can be elastically raised and lowered, and the nut can be sleeved on the positioning pin.

[0009] In the above-mentioned screw locking tool, the positioning column includes a first column and a second column connected in sequence from bottom to top, the plug connector is arranged at the lower end of the first column, a first chamber is arranged in the first column, a second chamber is arranged in the second column, the second chamber connects the first chamber and the accommodating groove, the positioning pin is connected in the first chamber and passes through to the second chamber, and an elastic member is arranged between the end of the first chamber away from the first column and the positioning pin.

[0010] In the above-mentioned screw locking tool, the upper end of the positioning pin is an arc-shaped end.

[0011] In the above-mentioned screw locking tool, there are 12 positioning holes.

[0012] In the above-mentioned screw locking tool, the cross-section of the positioning hole in the horizontal direction is a hexagon.

[0013] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0014] In the utility model, the fan motor is installed by using the positioning column to avoid interference between the rotor and the second block. The positioning column is provided with a receiving groove. The nut is placed in the receiving groove and the nut cannot rotate. When the fan motor is installed on the positioning column, its connection hole is just aligned with the nut. At this time, an electric screwdriver can be used to lock the screw on the nut to fix the shell of the fan motor together. It is convenient and quick, and there is no need to manually clamp the nut, thereby improving the assembly efficiency of the fan motor shell.

[0015] Moreover, the positioning columns are pluggable and removable at will, and the number and layout of the positioning columns can be adjusted according to the connection holes on the fan motor, so that fan motors of different specifications can be applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional view of the positioning column of the first embodiment of the utility model.

[0019] Among them, the reference numerals of the figures are:

[0020] 1. First block; 2. Second block; 21. Positioning hole; 22. Avoiding hole; 3. Positioning column; 31. Plug connector; 32. Accommodating groove; 33. Positioning pin; 34. First column; 341. First chamber; 35. Second column; 351. Second chamber; 36. Elastic member. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0023] Reference Figure 1 to Figure 2 As shown, in one embodiment of the utility model, a screw locking tool comprises a first block 1 and a second block 2 arranged in sequence from bottom to top, the first block 1 is made of rubber material, and the second block 2 is made of metal material. When placed on a workbench, the friction between the first block 1 and the workbench is relatively large, so that the first block 1 is not easy to move, so that the second block 2 can be stably placed on the workbench;

[0024] The second block 2 is provided with a plurality of positioning holes 21 open upwards, the cross section of the positioning holes 21 in the horizontal direction is a polygon, and the center of the first block 1 is provided with an air avoidance hole 22 open upwards, and the plurality of positioning holes 21 are evenly distributed around the air avoidance hole 22;

[0025] The fan motor is mounted on the positioning column 3, and the fan motor is prevented from interfering with the rotor and the second block 22. When the fan motor is mounted on the positioning column 3, the connection hole thereof is aligned with the nut. At this time, an electric screwdriver can be used to tighten the screw on the nut, and the casing of the fan motor is fixed together. This is convenient and quick, and there is no need to manually clamp the nut, thereby improving the assembly efficiency of the casing of the fan motor.

[0026] Moreover, the positioning posts 3 are pluggable and removable at will, and the number and layout of the positioning posts 3 can be adjusted according to the connection holes on the fan motor, so that the positioning posts 3 can be applied to fan motors of different specifications.

[0027] In this embodiment, there are 12 positioning holes 21, which can be adapted to the assembly of a fan motor housing with 3 connection holes, the assembly of a fan motor housing with 4 connection holes, or the assembly of a fan motor housing with 6 connection holes.

[0028] In this embodiment, the cross section of the positioning hole 21 in the horizontal direction is hexagonal, and the plug connector 31 is also in the shape of a hexagonal prism. After the plug connector 31 is inserted into the positioning hole 21, it cannot rotate, and the positioning column 3 is determined not to rotate.

[0029] In this embodiment, a positioning pin 33 is provided in the accommodating groove 32. The positioning pin 33 can be elastically raised and lowered, and the nut can be sleeved on the positioning pin 33. The positioning pin 33 can assist the entry of the screw. When the screw is screwed in, it will first touch the positioning pin 33. Although the positioning pin 33 is pressed, the positioning pin 33 will support the screw during this process to ensure that the screw can be smoothly screwed into the nut. After removing the fan motor, the positioning pin 33 can be elastically restored.

[0030] Specifically, the positioning column 3 includes a first column 34 and a second column 35 connected in sequence from bottom to top, the plug connector 31 is arranged at the lower end of the first column 34, a first chamber 341 is provided in the first column 34, and a second chamber 351 is provided in the second column 35. The second chamber 351 connects the first chamber 341 and the accommodating groove 32. The positioning pin 33 is connected in the first chamber 341 and passes through the second chamber 351. An elastic member 36 is provided between the end of the first chamber 341 away from the first column 34 and the positioning pin 33. When the screw is screwed in, the elastic member 36 is pressed, and the screw can enter the second chamber 351 to avoid interference between the screw and the second column 35. After the fan motor is removed, the elastic member 36 is restored to push the positioning pin 33 to reset; the first column 34 and the second column 35 can be connected together by threads.

[0031] In this embodiment, the elastic member 36 may be a spring.

[0032] Preferably, the upper end of the positioning pin 33 is an arc-shaped end, which facilitates the screw to be pushed onto the positioning pin 33 .

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A screw locking tool, characterized in that: It comprises a first block and a second block arranged in sequence from bottom to top, the first block is made of rubber material, and the second block is made of metal material; The second block is provided with a plurality of positioning holes open upwards, the cross section of the positioning holes in the horizontal direction is a polygon, the center of the first block is provided with an air avoidance hole open upwards, and the plurality of positioning holes are evenly distributed around the air avoidance hole; It also includes a plurality of positioning columns, wherein the lower ends of the positioning columns are provided with plug connectors adapted to the positioning holes, the plug connectors are inserted into the positioning holes, and the upper ends of the positioning columns are provided with accommodating grooves open upward, and the accommodating grooves are adapted to the nuts.

2. The screw locking tool according to claim 1, characterized in that: A positioning pin is arranged in the receiving groove, the positioning pin can be elastically lifted and lowered, and a nut can be sleeved on the positioning pin.

3. The screw locking tool according to claim 2, characterized in that: The positioning column includes a first column and a second column connected in sequence from bottom to top, the plug connector is arranged at the lower end of the first column, the first column is provided with a first chamber, the second column is provided with a second chamber, the second chamber connects the first chamber and the accommodating groove, the positioning pin is connected in the first chamber and passes through to the second chamber, and an elastic member is provided between the end of the first chamber away from the first column and the positioning pin.

4. The screw locking tool according to claim 2, characterized in that: The upper end of the positioning pin is an arc-shaped end.

5. The screw locking tool according to claim 1, characterized in that: There are 12 positioning holes.

6. The screw locking tool according to claim 1, characterized in that: The cross section of the positioning hole in the horizontal direction is a hexagon.

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