Brushless switch with locking function

Abstract

The utility model discloses a brushless switch with a locking function, which comprises a shell, the shell is provided with a guide post, the shell is provided with a swing rod capable of rotating left and right, the guide post is inserted with a button, the swing rod is provided with an extension part and extends to be close to the guide post, the extension part is provided with a locking groove, and the locking groove is inserted into the guide post. The button is provided with a first abutting portion and a second abutting portion, the first abutting portion and the second abutting portion are arranged in the locking groove, and the second abutting portion is close to the guide column. According to the utility model, the extension part and the second abutting part are close to the guide post, so that the contact area between the swing rod and the position in front of the button is increased, the misoperation of the brushless switch is not caused no matter what position of the button is pressed, and the product has the advantage of firm locking.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch technical field especially relates to a brushless switch with locking function. BACKGROUND

[0002] Now commonly used electric tool direct current brushless switch's current is inputted by positive and negative level terminal, changes the positive and negative rotation direction of current and motor through mechanical structure such as movable contact piece and sliding piece.

[0003] When electric tool is adjusted positive and negative rotation, need to move the swing lever in the front of button, when swing lever is in the middle position of button, press button now, swing lever will play the resistance of preventing button to press down, plays the role of locking, and when the tail of button is pressed in the position away from swing lever, button is easy to be cocked, and then causes brushless switch to start mistakenly, therefore, the applicant has made beneficial design, found the method to solve the above problems, and the technical scheme to be introduced below is generated under this background. SUMMARY

[0004] The utility model discloses to overcome the deficiency of traditional brushless switch design, provide a product with firm locking.

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] A brushless switch with locking function, including the casing, the casing is equipped with the guide column, the casing is equipped with the swing lever that can rotate left and right, the guide column inserts and is equipped with the button, the swing lever is equipped with the extension, and extends close to the guide column, the extension is equipped with the locking groove, the button is equipped with the first resistance part, the second resistance part, the first resistance part, the second resistance part sets up in the locking groove, and the second resistance part is close to the guide column.

[0007] Preferably, the first resistance part and the second resistance part are provided with inclined surfaces on both sides for disengaging from the locking groove.

[0008] Preferably, the button is provided with a cavity accommodating the extension, and the first resistance part and the second resistance part are arranged in the cavity.

[0009] Preferably, the casing is provided with a support portion below the extension, and the support portion is provided with guide portions on both sides and slidably arranged in the guide grooves.

[0010] Preferably, the extension is provided with abutting surfaces on both sides matching the limiting surfaces.

[0011] Advantages:

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses, through extension, second resistance close to the guide pillar, increase the contact area of swing lever and button front position, ensure no matter press the button's any position, will not lead to the misoperation of brushless switch, make the product have the advantage that lock firm. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the side surface section structure schematic diagram of a kind of brushless switch with locking function of the utility model;

[0015] Fig. 2 It is the structure schematic diagram of the shell of a kind of brushless switch with locking function of the utility model;

[0016] Fig. 3 It is the button structure schematic diagram of a kind of brushless switch with locking function of the utility model;

[0017] The correspondence between the annotations of each drawing and the component names in the drawings is as follows:

[0018] Reference signs: 1, shell;2, swing lever;3, button;11, guide pillar;12, support part;13, guide part;14, limit surface;21, extension;22, locking groove;23, resistance surface;31, first resistance;32, second resistance;33, inclined surface;34, recess;35, guide groove. DETAILED DESCRIPTION

[0019] The technical solutions of the utility model will be described clearly and completely below in conjunction with embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model.

[0021] In the embodiments of the utility model, "and / or" is only a description of the association relationship of the associated objects, and indicates that three relationships can exist, for example, A and / or B can indicate that A exists alone, A and B exist simultaneously, and B exists alone.

[0022] Reference example Figs. 1 to 3 A brushless switch with locking function, including shell 1, shell 1 is equipped with guide column 11, shell 1 is equipped with swing lever 2 that can rotate left and right, guide column 11 is inserted with button 3, swing lever 2 is equipped with extension 21, and extension 21 is extended close to guide column 11, extension 21 is equipped with locking groove 22, button 3 is equipped with first contact portion 31 and second contact portion 32, first contact portion 31 and second contact portion 32 are arranged in locking groove 22, second contact portion 32 is close to guide column 11, through extension 21, second contact portion 32 is close to guide column 11, and first contact portion 31 is matched, the contact area of swing lever 2 and the front position of button 3 is increased, to ensure that no matter the arbitrary position of button 3 is pressed, the misoperation of brushless switch will not be caused;

[0023] Worth mentioning is that the two sides of first contact portion 31 and second contact portion 32 are equipped with inclined surface 33 for the separation of first contact portion 31 and second contact portion 32 from locking groove 22, the smoothness of first contact portion 31 and second contact portion 32 from locking groove 22 is reduced through inclined surface 33, the fluency of swing lever 2 left and right movement is improved, the shape of locking groove 22 is concave arc, and can also be set as concave trapezoidal shape;

[0024] Worth mentioning is that button 3 is equipped with recess cavity 34 for accommodating the movement of extension 21, first contact portion 31 and second contact portion 32 are arranged in recess cavity 34, the two sides of recess cavity 34 are equipped with a plurality of equidistant guide grooves 35, and guide grooves 35 provide a guide function for the depression of button 3;

[0025] Worth mentioning is that shell 1 is equipped with support portion 12, and support portion 12 is arranged below extension 21, the two sides of support portion 12 are equipped with guide portion 13, and guide portion 13 is slidingly arranged in guide groove 35, guide portion 13 is equipped with inclined limiting surface 14, extension 21 is arranged between the two limiting surfaces 14, support portion 12 provides a support surface for extension 21, prevents extension 21 from being deformed due to excessive downward pressure, and further improves the stability of locking, and the angle of swing lever 2 left and right rotation is limited through limiting surface 14.

[0026] Worth mentioning is that the two sides of extension 21 are equipped with contact surface 23 matched with limiting surface 14.

[0027] The above design scheme can make the product have the advantages of locking firmly.

[0028] The above is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the utility model specific implementation is limited to these descriptions. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope determined by the claims submitted by the utility model.

Claims

1. A brushless switch with a locking function, comprising a housing (1), wherein the housing (1) is provided with a guide post (11), the housing (1) is provided with a swing arm (2) that can rotate left and right, and a button (3) is inserted into the guide post (11), characterized in that: The swing arm (2) is provided with an extension (21) that extends close to the guide post (11). The extension (21) is provided with a locking groove (22). The button (3) is provided with a first contact part (31) and a second contact part (32). The first contact part (31) and the second contact part (32) are located in the locking groove (22), and the second contact part (32) is close to the guide post (11).

2. The brushless switch with locking function according to claim 1, characterized in that: The first contact portion (31) and the second contact portion (32) are provided with inclined surfaces (33) on both sides for disengaging from the locking groove (22).

3. The brushless switch with locking function according to claim 2, characterized in that: The button (3) is provided with a recess (34) to accommodate the movement of the extension (21). The first contact part (31) and the second contact part (32) are disposed in the recess (34). Several equally spaced guide grooves (35) are provided on both sides of the recess (34).

4. The brushless switch with locking function according to claim 3, characterized in that: The housing (1) is provided with a support (12) and is located below the extension (21). The support (12) is provided with guides (13) on both sides and is slidably disposed in the guide groove (35). The guides (13) are provided with inclined limiting surfaces (14). The extension (21) is disposed between the two limiting surfaces (14).

5. The brushless switch with locking function according to claim 4, characterized in that: The extension (21) has contact surfaces (23) on both sides that cooperate with the limiting surface (14).

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