CN212750682U - Signal switch with self-locking function and electric equipment with signal switch - Google Patents

Abstract

The utility model provides a signal switch and have its electrical equipment with self-locking function belongs to electric switch technical field, wherein, has signal switch and includes: the button is connected above the movable frame, a locking plate extending downwards is arranged on the button, and a locking hole is formed in the locking plate; the self-locking module comprises an outer sleeve detachably connected to the switch shell and a locking button movably connected to the outer sleeve; the lock knob is connected with a second elastic piece, and the second elastic piece has a reset force for driving the lock knob to move towards the direction far away from the locking plate; the utility model discloses a signal switch can lock the adjustable shelf through the lock button of self-locking module, and wherein the self-locking module does not act on switch housing, and the overcoat detachably of self-locking module connects on switch housing, has guaranteed switch housing's integrality for switch housing has the commonality in the use of switch, has practiced thrift the cost.

Description

Signal switch with self-locking function and electric equipment with signal switch

Technical Field

The utility model relates to an electric switch technical field, concretely relates to signal switch and have its electrical equipment with self-locking function.

Background

The signal switch is used for controlling the on-off and speed regulation of the motor on the electric tool, and the existing signal switch is small in size and generally has no self-locking function.

However, with the development of market diversification, a self-locking function needs to be provided on the signal switch so that the signal switch can be kept in a certain position.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the small signal switch among the prior art does not have self-locking function to provide a signal switch with self-locking function and have its electrical equipment.

In order to solve the technical problem, the utility model provides a signal switch with self-locking function, include:

the switch comprises a switch shell, a movable frame is movably connected to the switch shell, a first elastic piece is connected to the movable frame, and the first elastic piece has a reset force which drives the movable frame to move towards a direction far away from the switch shell;

the button is connected above the movable frame, a locking plate extending downwards is arranged on the button, and a locking hole is formed in the locking plate;

the self-locking module comprises an outer sleeve detachably connected to the switch shell and a locking button movably connected to the outer sleeve; the lock knob is connected with a second elastic piece, and the second elastic piece has a reset force for driving the lock knob to move towards a direction far away from the locking plate;

the locking button is provided with a locking end facing the locking plate, and when the button is pressed downwards, the movable frame moves to a limiting position in the switch shell, the locking hole of the locking plate is opposite to the locking end of the locking button on the button.

Optionally, the lock knob is moved on the outer cover in a direction perpendicular to a moving direction of the movable frame.

Optionally, the outer casing is connected with the switch housing by a snap connection.

Optionally, the inner wall of the outer sleeve has hooks projecting inwardly.

Optionally, the outer sleeve has a placement slot therein with a through hole through which the locking end of the lock knob passes.

Optionally, the end of the locking end has a barb structure adapted to catch on the outer wall of the through bore.

Optionally, the outer sleeve has an insertion slot for inserting the locking plate.

The utility model also provides an electric equipment, include: the signal switch with the self-locking function in any one of the above schemes.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a signal switch with self-locking function can lock the adjustable shelf through the lock button of self-locking module, and wherein self-locking module does not act on switch housing, and self-locking module's overcoat detachably connects on switch housing, has guaranteed switch housing's integrality for switch housing has the commonality in the use of switch, has practiced thrift the cost.

2. The utility model provides a signal switch with self-locking function, self-locking module adopt the modularized design, can directly install on switch housing, easy dismounting, and the cost has also been practiced thrift to the user that conveniently does benefit to.

3. The utility model provides a signal switch with self-locking function has barb structure at the tip of the locking end of the lock button of self-locking module, and this barb structure can block on the port outer wall that passes the hole, also can stretch into to the lockhole in towards the lockplate and detain the joint on the another side of lockhole to make the lock button can lock the locking plate.

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 a perspective view of an embodiment of a signal switch.

Fig. 2 is an exploded view of fig. 1.

Figure 3 is a perspective view of the first contact blade of figure 2.

Figure 4 is a perspective view of the second contact blade of figure 2.

Fig. 5 is a front view of the wiring board.

Fig. 6 is a perspective view of the circuit board and the brush in engagement.

Fig. 7 is a perspective view showing the mounting of the brush to the movable frame.

Figure 8 is a front view of the installed position of the contact blade within the switch housing.

Fig. 9 is a partial schematic view of the movable frame of fig. 8 after moving downward.

Fig. 10 is a perspective view of the self-locking module of fig. 1.

Fig. 11 is a front sectional view of fig. 10.

Figure 12 is a front partial cross-sectional view of the button being pushed downward to bring the free ends of the first and second contact blades into contact.

Fig. 13 is a side partial sectional view of the state shown in fig. 12.

Figure 14 is a front partial cross-sectional view of the button pressed down to a stop position.

Fig. 15 is a side partial sectional view of the state shown in fig. 15.

Description of reference numerals:

1. a switch housing; 2. a button; 3. a lock knob; 4. a locking plate; 5. a lock hole; 6. a movable frame; 7. a first elastic member; 8. a circuit board; 9. a first contact blade; 10. a second contact blade; 11. a first mounting section; 12. a first connection section; 13. a first straight face; 14. a second straight face; 15. a first inclined plane; 16. a first contact surface; 17. a second mounting section; 18. a second connection section; 19. a third straight surface; 20. a fourth straight surface; 21. a second inclined plane; 22. a second contact surface; 23. a speed-regulating contact layer; 24. an on-off contact layer; 25. a bump; 26. a first brush; 27. a second brush; 28. a blocking block; 29. a jacket; 30. a locking end; 31. a second elastic member; 32. hooking; 33. a placement groove; 34. passing through the aperture; 35. and inserting the groove.

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 the 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 is to 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 in specific cases to those skilled 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 present embodiment provides a specific implementation of a signal switch, as shown in fig. 1 and fig. 2, including: switch housing 1, button 2 and from locking module, from locking module connect in on the switch housing 1, have on the locking module and be suitable for towards switch housing 1 male lock button 3. A movable frame 6 is movably connected to the switch housing 1, a first elastic member 7 is connected to the movable frame 6, and the first elastic member 7 has a restoring force for driving the movable frame 6 to move in a direction away from the switch housing 1. The button 2 is connected above the movable frame 6, a locking plate 4 extending downwards along the outer wall of the switch shell 1 is arranged on the button 2, and a locking hole 5 is formed in the locking plate 4. When the movable frame 6 is in move to the limiting position in the switch housing 1, on the button 2 the lockhole 5 of the lockplate 4 is opposite to the locking end 30 of the lock button 3 of the self-locking module, and at this moment, the button 2 can be locked by pressing the lock button 3 towards the inside of the switch lock body.

As shown in fig. 2, a circuit board 8, a first contact blade 9 and a second contact blade 10 are arranged in the switch housing 1, the circuit board 8 has a conductive contact layer for contacting with a brush, and the conductive contact layer has a current inflow end and a current outflow end. The first contact blade 9 and the second contact blade 10 are both spring pieces, wherein one end of the first contact blade 9 is electrically connected with a current inflow end of a conductive contact layer on the circuit board 8, the other end of the first contact blade is a free end, one end of the second contact blade 10 is electrically connected with a current outflow end of the conductive contact layer on the circuit board 8, the other end of the second contact blade is a free end suitable for being in contact with the first contact blade 9, and the free ends of the first contact blade 9 and the second contact blade 10 are in elastic contact.

As shown in fig. 3, the first contact blade 9 includes: the mounting structure comprises a first mounting section 11 and a first connecting section 12, wherein the first mounting section 11 is provided with a first straight surface 13 and a second straight surface 14 which are bent, and the first connecting section 12 is provided with a first inclined surface 15 connected with the first mounting section 11 and a first contact surface 16 connected with the first inclined surface 15. Wherein the first straight surface 13 and the second straight surface 14 are used for positioning installation, the first inclined surface 15 is used for providing elasticity, and the first contact surface 16 is used for contacting with the second contact blade 10 so as to bear surge current.

As shown in fig. 4, the second contact blade 10 includes: the mounting structure comprises a second mounting section 17 and a second connecting section 18, wherein the second mounting section 17 is provided with a bent third straight surface 19 and a bent fourth straight surface 20, and the second connecting section 18 is provided with a second inclined surface 21 connected with the second mounting section 17 and a second contact surface 22 connected with the second inclined surface 21. Wherein the third straight surface 19 and the fourth straight surface 20 are used for positioning installation, the second inclined surface 21 is used for providing elasticity, and the second contact surface 22 is used for contacting with the first contact blade 9 so as to bear surge current.

As shown in fig. 5, the wiring board 8 has a speed-adjusting contact layer 23 and a switching contact layer 24, wherein the switching contact layer 24 has two sections arranged at an interval. The circuit board 8 is provided with a bump 25, and the front surface and the back surface of the bump 25 are provided with conductive contact layers respectively used for connecting the first contact blade 9 and the second contact blade 10.

As shown in fig. 6, the brushes include a first brush 26 and a second brush 27 arranged in parallel, the first brush 26 is adapted to be in sliding contact with the speed regulation contact layer 23, and the second brush 27 is adapted to be in sliding contact with the on-off contact layer 24. In the process that the brush moves downwards, when the second brush 27 is in contact with the upper section of the on-off contact layer 24, the circuit of the circuit board 8 is not conducted, and when the second brush 27 is in contact with the lower section of the on-off contact layer 24, the circuit of the circuit board 8 is conducted; the speed regulation contact layer 23 on the circuit board 8 works after the on-off contact layer 24 is connected, so that the speed regulation of the electric tool can be realized.

As shown in fig. 7, the brush is connected to the movable frame 6, and the brush is adapted to connect the current inflow end and the current outflow end of the conductive contact layer when moving along with the movable frame 6; in addition, a blocking block 28 which is suitable for blocking the free ends of the first contact blade 9 and the second contact blade 10 from being in elastic contact is arranged on the movable frame 6. Before the current inflow end and the current outflow end of the conductive contact layer on the circuit board 8 are connected in the process that the brush moves along with the movable frame 6, the blocking block 28 on the movable frame 6 firstly releases the blocking of the first contact blade 9 and the second contact blade 10, so that the free ends of the first contact blade 9 and the second contact blade 10 are connected firstly, and the first contact blade 9 and the second contact blade 10 are subjected to surge current.

In the free state, as shown in fig. 8, the free ends of the first contact blade 9 and the second contact blade 10 are blocked by the blocking block 28 of the movable frame 6, and the first contact blade 9 and the second contact blade 10 are not connected.

As shown in fig. 9, after the movable frame 6 moves downward, the blocking block 28 of the movable frame 6 releases the blocking of the first contact blade 9 and the second contact blade 10, the free ends of the first contact blade 9 and the second contact blade 10 are in contact electrical connection, and at this time, the circuit board 8 is not switched on by the brush, and only the first contact blade 9 and the second contact blade 10 receive surge current.

As shown in fig. 2 and 10, the self-locking module includes: an outer sleeve 29 and a lock knob 3, wherein the lock knob 3 is inserted on the outer sleeve 29 in an axially movable manner, and the outer sleeve 29 is provided with an insertion groove 35 for inserting the lock plate 4.

As shown in fig. 11, a placement groove 33 for inserting the lock knob 3 is formed on the outer sleeve 29, a through hole 34 is formed in the placement groove 33, the locking end 30 of the lock knob 3 passes through the through hole 34, and the end of the locking end 30 has a barb structure adapted to catch on the outer wall of the port passing through the through hole 34. A second elastic member 31 is connected to the lock knob 3, and the second elastic member 31 has a restoring force for driving the lock knob 3 to move in a direction away from the latching plate 4.

As shown in fig. 13, the outer wall of the port passing through the hole 34 and the locking plate 4 inserted in the insertion groove 35 have a space for receiving the barb structure of the locking end 30 of the lock knob 3.

Principle of operation

In the free state, as shown in fig. 8, the movable frame 6 is lifted by the first elastic member 7, and the stopper 28 on the movable frame 6 is stopped between the first contact blade 9 and the free end of the second contact blade 10.

As shown in fig. 12 and 13, when the button 2 is pushed down to start the downward movement of the movable frame 6, the blocking block 28 on the movable frame 6 starts to release the blocking of the first contact blade 9 and the second contact blade 10, so that the first contact blade 9 and the second contact blade 10 are electrically contacted, and at this time, the lock knob 3 is not aligned with the lock hole 5 on the lock plate 4, and the lock knob 3 cannot be locked into the lock hole 5.

As shown in fig. 14 and 15, when the button 2 is further pushed downward to move the movable frame 6 downward to the limit position, the locking plate 4 on the button 2 moves downward, the locking button 3 is aligned with the locking hole 5 on the locking plate 4, at this time, after the locking button 3 is pushed toward the switch housing 1, the locking end 30 of the locking button 3 can be inserted into the locking hole 5, and the barb structure of the locking end 30 of the locking button 3 is clamped in the locking hole 5 under the combined action of the first elastic member 7 and the second elastic member 31.

When unlocking, the button 2 is pushed down to disengage the locking hole 5 on the locking plate 4 from the barb structure of the locking end 30 of the lock knob 3, the lock knob 3 is reset in a direction away from the switch housing 1 by the second elastic member 31, the locking end 30 of the lock knob 3 is disengaged from the locking plate 4, and then the button 2 is released, so that the movable frame 6 is reset to the initial state shown in fig. 8 by the first elastic member 7.

Example 2

The embodiment provides an electric device, which adopts the signal switch described in embodiment 1, the signal switch can be arranged at a handle part of the electric device, and the signal switch can be used for controlling the on-off of a motor of the electric device and controlling the speed regulation of the motor.

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. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (8)

1. A signal switch with a self-locking function is characterized by comprising:

the switch comprises a switch shell (1), wherein a movable frame (6) is movably connected to the switch shell (1), a first elastic piece (7) is connected to the movable frame (6), and the first elastic piece (7) has a reset force for driving the movable frame (6) to move towards a direction far away from the switch shell (1);

the button (2) is connected above the movable frame (6), a locking plate (4) extending downwards is arranged on the button (2), and a locking hole (5) is formed in the locking plate (4);

a self-locking module comprising an outer casing (29) detachably connected to the switch housing (1), and a locking knob (3) movably connected to the outer casing (29); a second elastic piece (31) is connected to the lock knob (3), and the second elastic piece (31) has a resetting force for driving the lock knob (3) to move towards a direction away from the locking plate (4);

lock button (3) have the orientation locking end (30) of lockplate (4), press button (2) down, make during adjustable shelf (6) remove to limit position in switch housing (1), on button (2) lockhole (5) of lockplate (4) with locking end (30) of lock button (3) are relative.

2. Signal switch with self-locking function according to claim 1, characterized in that the locking knob (3) is moved on the outer casing (29) in a direction perpendicular to the direction of movement of the movable frame (6).

3. The signal switch with self-locking function according to claim 1, wherein the outer sleeve (29) is connected with the switch housing (1) by a snap connection.

4. Signal switch with self-locking function according to claim 3, characterized in that the inner wall of the outer sleeve (29) is provided with hooks (32) protruding inwards.

5. The signal switch with self-locking function according to claim 1, wherein the outer casing (29) has a placement groove (33) therein with a through hole (34), the locking end (30) of the locking knob (3) passing through the through hole (34).

6. Signal switch with self-locking function according to claim 5, characterized in that the end of the locking end (30) has a barb structure suitable for catching on the outer wall of the port passing through the hole (34).

7. Signal switch with self-locking function according to any of claims 1-6, characterized in that the outer sleeve (29) has an insertion slot (35) for inserting the locking plate (4).

8. An electrically powered device, comprising: the signal switch with self-locking function of any one of claims 1 to 7.

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