CN217405291U

CN217405291U - Electric switch with back locking structure and electric tool with same

Info

Publication number: CN217405291U
Application number: CN202221532753.3U
Authority: CN
Inventors: 郑春开; 廖军; 张�杰; 李楠; 王贤淑
Original assignee: Kedu Electric Co Ltd
Current assignee: Kedu Electric Co Ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-09-09
Anticipated expiration: 2032-06-15

Abstract

The utility model provides an electric switch and have its electric tool with anti-lock structure belongs to electric switch technical field, and wherein, button switch includes: a switch main body provided with a movable frame; the button is movably connected to the switch main body, and is matched with the movable frame and used for driving the movable frame to move; a support member connected to the button; when the support piece is positioned at the first movable position, the support piece is supported on the switch main body to block the button from moving towards the switch main body; when the support is located at the second movable position, the support moves away from the blocking path of the switch body so that the button can move towards the switch body; the utility model discloses a button switch is provided with support piece on the button, and when the button was in the state of bounceing, support piece stopped the button on switch main part's dog at first active position, support piece support to prevent that the mistake from bumping the button, avoid electric tool maloperation, improve electric tool's safety in utilization.

Description

Electric switch with back locking structure and electric tool with same

Technical Field

The utility model relates to an electric switch technical field, concretely relates to electric switch and have its electric tool with anti-lock structure.

Background

The button type electric switch that adopts on electric tool, after pressing the button, the button drives the adjustable shelf and triggers contact mechanism to make electric tool start.

In the related art, when the electric tool is not used temporarily, the electric tool is not normally powered off. At this moment, a mechanical structure is needed to be adopted to reversely lock the button so as to prevent the button from being touched by mistake, so that misoperation of the electric tool is caused and potential safety hazards are brought.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the button switch among the prior art, and the easy mistake is bumped the button and is leaded to the defect that electric tool starts to an electric switch with anti-lock structure and electric tool who has it is provided.

In order to solve the technical problem, the utility model provides an electric switch with anti-lock structure, include:

the switch comprises a switch main body, a fixed contact and a movable frame, wherein the switch main body is internally provided with the fixed contact;

one end of the button is a hinged end, the hinged end is connected to the switch main body in a hinged mode, and the button is matched with the movable frame and used for driving the movable frame to move;

a support member movably connected to an end of the button remote from the hinged end, the support member having at least two movable positions on the button, the support member being supported on the switch body to block the button from being depressed when the support member is in a first movable position; when the support member is located at the second active position, the support member releases the blocking of the button so that the button can be pressed.

Optionally, the support is slidably mounted on the button.

Optionally, the other end of the button, which is far away from the hinged end, is a pressing end, and the supporting piece is embedded on the pressing end.

Optionally, a first elastic member is connected between the support member and the button, and the first elastic member has an elastic force that drives the support member to move toward the first active position.

Optionally, a second elastic member is connected between the button and the switch main body, and the second elastic member has an elastic force for driving the button to bounce.

Optionally, the second elastic member and the movable frame are sequentially arranged along a length direction of the button.

Optionally, the movable frame is disposed near a hinged end of the button, and the second elastic member is disposed near a pressing end of the button.

Optionally, the movable frame is disposed at a position close to the pressing end of the button, and the second elastic member is disposed at a position close to the hinge end of the button.

Optionally, at least one stopper for stopping the supporting member is respectively disposed on two sides of the second elastic member.

The utility model also provides an electric tool, include: an electric switch with an anti-lock structure as claimed in any one of the above aspects.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an electric switch with anti-lock structure is provided with support piece on the button, and when the button was in the state of bounceing, support piece was in first active position, supported on the dog of switch main part through support piece this moment, can blockked the button to prevent that the mistake from bumping the button, avoid electric tool maloperation, improve electric tool's safety in utilization. When the button needs to be operated, the support piece is moved to the second movable position by moving the support piece, so that the blocking of the button is released, and the button can be pressed.

2. The utility model provides an electric switch with anti-lock structure, support piece sliding connection are on the button, when carrying out unblock and operation, and accessible one hand is accomplished, the simple operation.

3. The utility model provides an electric switch with anti-lock structure, support piece structure is thick and solid, and intensity is good, and its atress strong point distributes in the interval at button atress place, non-deformable during the button atress, and the anti-lock function is more reliable.

4. The utility model provides an electric tool, owing to have the button switch of above-mentioned arbitrary, consequently have the above-mentioned arbitrary advantage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of one embodiment of an electrical switch having a lockout structure provided in example 1 of the present invention.

Figure 2 is a front partial cross-sectional view of the electrical switch of figure 1 having the lockout structure in an initial state.

Fig. 3 is a front view of the support member after an unlocking operation in the state of fig. 2.

Fig. 4 is a front view of the button in the state of fig. 3 after being pushed.

Figure 5 is an exploded view of one embodiment of an electrical switch having a lockout structure provided in example 2 of the present invention.

Figure 6 is a front partial cross-sectional view of the electrical switch of figure 5 having the lockout structure in an initial state.

Fig. 7 is a front view of the support member after an unlocking operation in the state of fig. 6.

Fig. 8 is a front view of the button in the state of fig. 7 after being pushed.

Description of reference numerals:

1. a switch main body; 2. a button; 3. a support member; 4. a movable frame; 5. a first elastic member; 6. a second elastic member; 7. and a stop block.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The electric switch with the back locking structure provided by the embodiment can be used for a handheld electric tool, such as a drilling machine, a grinding machine, an electric saw, an electric planer, an angle grinder and the like.

As shown in fig. 1, a specific embodiment of the electric switch with the lockout structure provided in this embodiment includes: the switch comprises a switch main body 1, a button 2 and a support 3, wherein a static contact is arranged inside the switch main body 1, a movable frame 4 is movably mounted on the switch main body 1, a moving contact is mounted on the movable frame 4, and the moving contact and the static contact are switched on and off by moving the movable frame 4. The one end of button 2 is the hinged end, the hinged end is connected through articulated on the switch main part 1, button 2 with the adjustable shelf 4 cooperation is used for the drive adjustable shelf 4 removes. The support 3 is movably connected to one end of the button 2 far away from the hinged end, the support 3 has at least two movable positions on the button 2, when the support 3 is positioned at the first movable position, the support 3 is supported on the switch main body 1 to block the button 2 from being pressed; when the support 3 is in the second active position, the support 3 unblocks the push-button 2 to enable the push-button 2 to be pressed.

The electric switch with the back locking structure that this embodiment provided is provided with support piece 3 on button 2, and when button 2 was in the state of bounceing, support piece 3 was at first active position, supported on the dog 7 of switch main body 1 through support piece 3 this moment, can block button 2 to prevent the mistake and bump button 2, avoid electric tool maloperation, improve electric tool's safety in utilization. When the button 2 needs to be operated, the support 3 is moved to the second movable position by moving the support 3, so that the blocking of the button 2 is released, and the button 2 can be pressed.

As shown in fig. 2 and 3, in the electric switch with the latch-back structure provided in this embodiment, the support 3 is slidably mounted on the button 2, and the support 3 slides on the button 2 to switch between the first active position and the second active position.

As shown in fig. 1, in the electric switch with the back locking structure provided in this embodiment, the other end of the button 2 away from the hinged end is a pressing end, and the supporting member 3 is embedded in the pressing end. Therefore, when the electric switch needs to be driven, the supporting piece 3 is driven to unlock by only one hand, and the unlocking can be completed by pressing the button 2, so that the operation is relatively convenient and fast.

As shown in fig. 1, 2 and 3, in the electric switch with the latch-back structure provided in this embodiment, a first elastic member 5 is connected between the support member 3 and the button 2, and the first elastic member 5 has an elastic force for driving the support member 3 to move toward the first movable position. That is, in the free state, the button 2 is in the bounce position, and at this time, under the action of the first elastic member 5, the support member 3 is elastically abutted at the first movable position, and at this time, the support member 3 keeps the back lock against the button 2, so that the button 2 cannot be directly pressed, thereby ensuring the safety of using the electric power tool.

As shown in fig. 1, 3 and 4, in the electric switch with the back locking structure provided in this embodiment, a second elastic member 6 is connected between the button 2 and the switch main body 1, and the second elastic member 6 has an elastic force for driving the button 2 to bounce. That is, the push button 2 is kept in the sprung state by the second elastic member 6 in the free state.

Specifically, as shown in fig. 1, in the electric switch with an unlocking structure according to the present embodiment, the second elastic member 6 and the movable frame 4 are sequentially arranged along the length direction of the button 2. The movable frame 4 is arranged at a position close to the hinged end of the button 2, and the second elastic piece 6 is arranged at a position close to the pressing end of the button 2. With this arrangement, the button 2 is kept in the sprung state by the cooperation of the second elastic member 6 and the movable frame 4, and when the button 2 is pressed, not only the elastic force of the second elastic member 6 but also the upward elastic force of the movable frame 4 are overcome.

Application method

As shown in fig. 2, in the free state, the button 2 is bounced, the support member 3 is located at the first movable position supported on the stopper 7, and at this time, the button 2 cannot be directly pressed downward due to the support of the support member 3, so that the safety of personnel is ensured.

When it is desired to push the button 2 downwardly, as shown in figure 3, the support 3 is first driven inwardly of the button 2 to disengage the support 3 from the bottom supported stop 7, at which point the button 2 can be pushed downwardly directly.

As shown in fig. 4, the button 2 is pushed downward, so that the button 2 overcomes the elastic force of the second elastic element 6 and drives the movable frame 4 to move downward, thereby connecting the movable contact and the fixed contact inside the switch main body 1.

Example 2

The present embodiment provides an electric switch having an unlocking structure, which has substantially the same structure as that of embodiment 1. The difference lies in that: in the electric switch with the latch-back structure provided in this embodiment, the movable frame 4 is disposed near the pressing end of the button 2, and the second elastic member 6 is disposed near the hinged end of the button 2.

As shown in fig. 5 to 8, in the electric switch with an anti-lock structure provided in this embodiment, at least one stopper 7 for stopping the supporting member 3 is respectively disposed at two sides of the second elastic member 6, and in the locked state, the stoppers 7 at two sides respectively stop the supporting block from moving downward, thereby stopping the button 2 from being pushed downward.

Example 3

The present embodiment provides an electric power tool employing the electric switch with the back-locking structure according to any one of the above aspects, for starting the operation of the electric power tool when the push button 2 is pushed.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. An electrical switch having an anti-lock arrangement, comprising:

the switch comprises a switch main body (1) and a switch control circuit, wherein a static contact is arranged inside the switch main body (1), a movable frame (4) is movably arranged on the switch main body (1), a movable contact is arranged on the movable frame (4), and the movable contact and the static contact are switched on and off by moving the movable frame (4);

one end of the button (2) is a hinged end, the hinged end is connected to the switch main body (1) in a hinged mode, and the button (2) is matched with the movable frame (4) and used for driving the movable frame (4) to move;

a support (3) movably connected to an end of the button (2) remote from the hinged end, the support (3) having at least two movable positions on the button (2), the support (3) being supported on the switch body (1) to block the button (2) from being pressed when the support (3) is in a first movable position; when the support (3) is in the second active position, the support (3) unblocks the push-button (2) to enable the push-button (2) to be pressed.

2. Electric switch with anti-lock structure, according to claim 1, characterized in that said support (3) is slidingly mounted on said push-button (2).

3. The electric switch with the back locking structure according to claim 2, characterized in that the other end of the button (2) away from the hinged end is a pressing end, and the support (3) is embedded on the pressing end.

4. Electric switch with anti-lock structure according to any of claims 1-3, characterized in that a first elastic member (5) is connected between the support member (3) and the push button (2), said first elastic member (5) having an elastic force that drives the support member (3) towards the first active position.

5. The electric switch with the structure of locking back according to claim 4, characterized in that a second elastic member (6) is connected between the push button (2) and the switch body (1), and the second elastic member (6) has an elastic force that drives the push button (2) to bounce.

6. The electric switch with the structure of locking back according to claim 5, characterized in that the second elastic member (6) and the movable frame (4) are arranged in sequence along the length direction of the button (2).

7. The electric switch with the structure of locking back according to claim 6, characterized in that the movable frame (4) is disposed at a position near the hinged end of the button (2), and the second elastic member (6) is disposed at a position near the pressing end of the button (2).

8. The electric switch with the back locking structure according to claim 6, characterized in that the movable frame (4) is provided at a position near the pressing end of the button (2), and the second elastic member (6) is provided at a position near the hinged end of the button (2).

9. Electric switch with an anti-lock structure according to claim 8, characterized in that the second elastic member (6) is provided with at least one stopper (7) for blocking the support member (3) on both sides, respectively.

10. An electric power tool, characterized by comprising: an electrical switch having an anti-lock arrangement as claimed in any one of claims 1 to 9.