CN210925777U - DC trigger switch with double contact point contact structure - Google Patents
DC trigger switch with double contact point contact structure Download PDFInfo
- Publication number
- CN210925777U CN210925777U CN201922024096.6U CN201922024096U CN210925777U CN 210925777 U CN210925777 U CN 210925777U CN 201922024096 U CN201922024096 U CN 201922024096U CN 210925777 U CN210925777 U CN 210925777U
- Authority
- CN
- China
- Prior art keywords
- moving contact
- push shaft
- reversing
- spring
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model provides a direct current trigger switch with a double-contact structure, which comprises a base body, an upper cover and a push shaft; the top of one side of the push shaft is provided with a swinging piece and a swinging piece spring, the top of the swinging piece is provided with a first moving contact connected with the swinging piece, a moving contact support and a power input terminal are arranged above the first moving contact, and the other side of the push shaft is provided with a negative terminal; a circuit board is arranged above the push shaft, and one end of the negative terminal of the moving contact support penetrates through the circuit board and is connected through a connecting sheet; the bottom of the push shaft is provided with a sliding block connected with the push shaft, the sliding block is provided with a moving contact spring, one end of the moving contact spring is provided with a second moving contact, the first moving contact and the second moving contact are both provided with moving contacts, and the power supply input terminal and the negative terminal are both provided with static contacts; the movable contact on the first movable contact is matched with the bottom of the power supply input terminal; the moving contact on the second moving contact is respectively matched with the power input end and the static contact on the negative terminal.
Description
Technical Field
The utility model relates to a direct current trigger switch with dual contact structure.
Background
The trigger switches of this type currently on the market are of substantially similar configuration but suffer from the following functional drawbacks:
1. the conventional direct current trigger switch is only provided with a group of silver contacts and can only be used for a direct current electric tool with relatively small current, if a large current exceeding 20A occurs in the use process of the electric tool, the switch is easily burnt, the electric tool cannot be closed and the like, serious potential safety hazards exist, and the national safety standard is not met.
2. The conventional direct current trigger switch is used for a direct current brushless electric tool, the reversing part is in direct mechanical contact with copper foils on a reed and a circuit board, the reversing signal output is realized by outputting high and low levels, generally speaking, the mechanical friction coefficient between metals is large, when the direct current trigger switch is used for the direct current electric wrench, the electric wrench vibrates very greatly in the using process, the friction of the reed and the circuit board is accelerated, the service life of the electric tool is greatly reduced, the reversing failure and other defects can be caused in serious conditions, the electric wrench is generally a high-altitude operation tool, if the reversing failure easily causes serious potential safety hazards to human safety, and the direct current trigger switch does not accord with national safety standards.
Therefore, the direct current trigger switch with the double-contact connection structure is imperative in design of the direct current trigger switch, wherein the reversing structure is not prone to failure, and the direct current trigger switch is long in service life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a direct current trigger switch with dual contact structure.
The utility model provides a pair of direct current trigger switch with dual contact structure, its technical scheme is:
the trigger switch comprises a base body, an upper cover and a push shaft;
a swinging piece and a swinging piece spring are arranged at the top of one side of the push shaft, a first moving contact connected with the swinging piece is arranged at the top of the swinging piece, a moving contact support and a power supply input terminal are arranged above the first moving contact, and a negative terminal is arranged at the other side of the push shaft;
a circuit board is arranged above the push shaft, and one end of the moving contact support and one end of the negative terminal both penetrate through the circuit board and are connected through a connecting sheet arranged on the circuit board;
a sliding block connected with the push shaft is arranged at the bottom of the push shaft, a moving contact spring is arranged on the sliding block, and a second moving contact is arranged at one end of the moving contact spring;
the first moving contact and the second moving contact are both provided with moving contacts, and the power supply input terminal and the negative terminal are both provided with static contacts;
the movable contact on the first movable contact is matched with the bottom of the power supply input terminal;
and the movable contact on the second movable contact is respectively matched with the power supply input end and the static contact on the negative terminal.
The other end of the moving contact spring is provided with a brake pad, and a brake terminal connected with the circuit board is arranged below the circuit board.
And the top of the push shaft is provided with a sliding reed which can slide on the circuit board.
Wherein, the top of circuit board is provided with first switching-over structure, first switching-over structure includes:
the first reversing turntable and the magnet seat are arranged above the circuit board;
a first magnet and a second magnet with opposite polarities are arranged in the magnet seat;
a Hall element is arranged on the circuit board corresponding to the position of the perpendicular bisector of the first magnet and the second magnet;
a magnet seat spring is arranged at the top of the magnet seat, a marble spring is arranged at the top of the magnet seat, and marbles are arranged at two ends of the marble spring;
rotating the first reversing turntable to enable the Hall element to output a positive level when the first magnet and the Hall element are positioned on the same straight line;
and rotating the first reversing turntable to enable the Hall element to output a negative level when the second magnet and the Hall element are positioned on the same straight line.
Wherein, the top of circuit board is provided with the second structure of commuting, the second structure of commuting includes:
the bottom of the second reversing turntable is provided with a first reversing terminal, a second reversing terminal, a third reversing terminal and a fourth reversing terminal;
the top parts of the first reversing terminal and the third reversing terminal are both provided with reversing moving contacts, and reversing moving contact springs are arranged above the reversing moving contacts;
a spring is arranged between the two reversing moving contacts, and two ends of the spring are provided with marbles.
The bottom of the push shaft is provided with a first cavity, and the sliding block is arranged in the first cavity;
the sliding block is provided with a second cavity, and the second moving contact and the moving contact spring are both arranged in the second cavity.
The device comprises a push shaft, a swing piece spring, a boss, a swing piece clamping groove and a swing piece clamping groove, wherein the boss is arranged on one side of the push shaft, the swing piece clamping groove is formed in the boss, and the swing piece spring are arranged in the swing piece clamping groove.
The first moving contact is provided with a first moving contact, the swing sheet is provided with a first clamping block, and the first moving contact is provided with a clamping hole, and the first clamping block is clamped in the clamping hole.
The top of the push shaft is provided with a push shaft groove;
a fixed column is arranged in the center of the push shaft groove, and clamping grooves are formed in the two sides of the push shaft;
a fixing hole is formed in the center of the sliding spring plate, and second clamping blocks are arranged on two sides of the sliding spring plate;
the fixing column is clamped in the fixing hole, and the second clamping block is clamped in the clamping groove.
The box body is provided with a box body, the box body is provided with a push shaft, the push shaft extends out of the box body, a trigger is arranged at one end of the push shaft, a push shaft through hole is formed in the other end of the push shaft, a positioning column is arranged in the push shaft through hole, and a reset spring is arranged on the positioning column.
The utility model discloses an implement including following technological effect:
the utility model relates to a novel trigger switch, which is provided with a first moving contact which is firstly communicated with a power input terminal, wherein the communicating process has relative friction action, and the disconnecting process also has opposite friction action, thereby being capable of clearing the surface of the moving contact from blackening or dirt caused by the discharge of a filter capacitor of a battery pack and other factors, and leading the switch to be well communicated; and, after the second moving contact is put through, the dual contact of two sets of moving contacts that connect in parallel has asynchronous switch-on function, and two sets of contacts switch on simultaneously for the switch has bigger current-carrying capacity, thereby makes this disclosed switch can make the switch burn out through bigger electric current.
2. The utility model discloses novel structure, low in cost uses the maintenance to repair simply, can extensively be used for all kinds of direct current hand-held type electric tool, when using in brushless motor direct current electric tool, its contactless ground passes through magnet control hall element's electronic signal switching-over structure durable to make switch switching-over structure be difficult to damage.
3. The utility model discloses novel structure is applicable to all kinds of direct current hand-held type electric tool, if: the direct current electric drill, the direct current electric hammer, the direct current electric wrench, the direct current impact screw driver and the like accord with the national safety standard.
Drawings
Fig. 1 is a perspective view of a dc trigger switch with a dual contact structure according to the present invention in an off state, which is used in a brushless electric tool.
Fig. 2 is a perspective view of a dc trigger switch with a dual contact structure according to the present invention, which is used for a brushed electric tool.
Fig. 3 is a partial structural schematic diagram of fig. 1.
Fig. 4 is a partial structural schematic diagram of fig. 2.
Fig. 5 is an exploded view of a dc trigger switch having a dual contact structure of fig. 1.
Fig. 6 is an exploded view of a dc trigger switch having a dual contact structure of fig. 2.
Fig. 7 is a partial structural combination view of a dc trigger switch having a dual contact structure of fig. 1.
Fig. 8 is a partial structural combination view of a dc trigger switch having a dual contact structure of fig. 2.
In the figure, 1-a base body, 2-an upper cover, 3-a push shaft, 4-a swinging piece, 5-a swinging piece spring, 6-a first moving contact, 7-a moving contact bracket, 8-a power input terminal, 9-a negative terminal, 10-a circuit board, 11-a connecting piece, 12-a sliding block, 13-a moving contact spring, 14-a second moving contact, 15-a moving contact, 16-a fixed contact, 17-a brake piece, 18-a brake terminal, 19-a sliding reed, 20-a first reversing turntable, 21-a magnet base, 22-a first magnet, 23-a second magnet, 24-a Hall element, 25-a magnet base spring, 26-a marble spring, 27-a marble, 28-a second reversing turntable, 29-a first reversing terminal, 30-a second reversing terminal, 31-a third reversing terminal, 32-a fourth reversing terminal, 33-a reversing moving contact, 34-a reversing moving contact spring, 35-a trigger, 36-a return spring, 301-a first cavity, 302-a boss, 303-a swinging sheet clamping groove, 304-a pushing shaft groove, 305-a fixed column, 306-a clamping groove, 41-a first clamping block, 51-a trigger spring, 61-a clamping hole, 121-a second cavity, 191-a fixed hole and 192-a second clamping block.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings, wherein the described embodiments are only intended to facilitate the understanding of the present invention, and do not limit the present invention in any way. The orientations described in the present application, such as up, down, left, right, and left, are convenient to use and described with reference to the drawings, and do not limit the scope of protection.
As shown in fig. 1 to 6, the present embodiment provides a dc trigger switch having a dual contact structure, which includes a base body 1, an upper cover 2, and a push shaft 3;
a swinging plate 4 and a swinging plate spring 5 are arranged at the top of one side of the push shaft 3, a first moving contact 6 connected with the swinging plate 4 is arranged at the top of the swinging plate 4, a moving contact support 7 and a power supply input terminal 8 are arranged above the first moving contact 6, and a negative terminal 9 is arranged at the other side of the push shaft 3;
a circuit board 10 is arranged above the push shaft 3, and one end of the moving contact support 7 and one end of the negative terminal 9 both penetrate through the circuit board 10 and are connected through a connecting sheet 11 arranged on the circuit board 10;
a sliding block 12 connected with the push shaft 3 is arranged at the bottom of the push shaft 3, a moving contact spring 13 is arranged on the sliding block 12, and a second moving contact 14 is arranged at one end of the moving contact spring 13;
the first moving contact 6 and the second moving contact 14 are both provided with a moving contact 15, and the power input terminal 8 and the negative terminal 9 are both provided with a static contact 16;
the moving contact 15 on the first moving contact 6 is matched with the bottom of the power input terminal 8;
the moving contact 15 of the second moving contact 14 is respectively matched with the power input end 8 and the fixed contact 16 of the negative terminal 9.
The trigger switch in the embodiment of the disclosure is a novel trigger switch, can be used for a brushless motor direct current electric tool, and is provided with a first moving contact which is firstly connected with a power supply input terminal, relative friction action exists in the connection process, and opposite friction action also exists in the disconnection process, so that the phenomenon that the moving contact is blackened or dirty due to discharge of a filter capacitor of a battery pack and other factors on the surface of the moving contact can be eliminated, and the switch connection is good.
And, after the second moving contact is put through, the dual contact of two sets of moving contacts that connect in parallel has asynchronous switch-on function, and two sets of contacts switch on simultaneously for the switch has bigger current-carrying capacity, thereby makes this disclosed switch can make the switch burn out through bigger electric current.
Furthermore, the trigger switch in the embodiment of the disclosure has novel structure, low manufacturing cost and simple and easy use, maintenance and repair, can be widely applied to various direct current hand-held electric tools, and when the trigger switch is used in a brushless motor direct current electric tool, the trigger switch controls the electronic signal reversing structure of the Hall element through the magnet in a non-contact manner and is durable, so that the switch reversing structure is not easy to damage.
Finally, the trigger switch in the embodiments of the present disclosure is suitable for various dc hand-held electric tools, such as: the direct current electric drill, the direct current electric hammer, the direct current electric wrench, the direct current impact screw driver and the like accord with the national safety standard.
In one embodiment, as shown in fig. 2, 4 and 6, the other end of the movable contact spring 13 is provided with a brake pad 17, and a brake terminal 18 connected with the circuit board 10 is arranged below the circuit board 10. The switch in this embodiment can be used for a brushed electric tool to achieve a braking function.
Preferably, as shown in fig. 5 and 6, the top of the push shaft 3 is provided with a slide spring 19 capable of sliding on the circuit board 10.
Preferably, as shown in fig. 1, 3 and 5, a first commutation structure is disposed above the circuit board 10, and the first commutation structure includes:
a first reversing turntable 20 and a magnet base 21 arranged above the circuit board 10;
a first magnet 22 and a second magnet 23 with opposite polarities are arranged in the magnet seat 21;
a Hall element 24 is arranged on the circuit board 10 corresponding to the position of the perpendicular bisector of the first magnet 22 and the second magnet 23;
a magnet seat spring 25 is arranged at the top of the magnet seat 21, a marble spring 26 is arranged at the top of the magnet seat 21, and marbles 27 are arranged at two ends of the marble spring 26;
when the first reversing turntable 20 is rotated to enable the first magnet 22 and the Hall element 24 to be positioned on the same straight line, the Hall element 24 outputs a positive level;
when the first reversing turntable 20 is rotated so that the second magnet 23 and the hall element 24 are positioned on the same straight line, the hall element 24 outputs a negative level.
The switch in the disclosed embodiments can be used for speed regulation of a brushless electric tool.
In one embodiment, as shown in fig. 2, 4 and 6, a second commutation structure is disposed above the circuit board 10, and the second commutation structure includes:
a second commutation carousel 28, the bottom of the second commutation carousel 28 being provided with a first commutation terminal 29, a second commutation terminal 30, a third commutation terminal 31, and a fourth commutation terminal 32;
the top parts of the first reversing terminal 29 and the third reversing terminal 31 are both provided with a reversing moving contact 33, and a reversing moving contact spring 34 is arranged above the reversing moving contact 33;
a pin spring 26 is arranged between the two reversing moving contacts 33, and pins 27 are arranged at both ends of the pin spring 26.
The switch in the disclosed embodiment can be used for speed regulation of a brushed electric tool.
In one embodiment, as shown in fig. 5 to 8, a first cavity 301 is disposed at the bottom of the push shaft 3, and the slider 12 is disposed in the first cavity 301;
a second cavity 121 is arranged on the slider 12, and the second movable contact 14 and the movable contact spring 13 are both arranged in the second cavity 121.
In one embodiment, as shown in fig. 5 to 8, a boss 302 is disposed on one side of the push shaft 3, a swing plate slot 303 is disposed on the boss, and the swing plate 4 and the swing plate spring 5 are both disposed in the swing plate slot 303.
In one embodiment, a first clamping block 41 is disposed at one end of the swinging plate 4 close to the first movable contact 6, a clamping hole 61 is disposed on the first movable contact 6, and the first clamping block 41 is clamped in the clamping hole 61.
In one embodiment, as shown in fig. 5-8, the top of the push shaft 3 is provided with a push shaft groove 304;
a fixed column 305 is arranged at the center of the push shaft groove 304, and clamping grooves 306 are arranged on two sides of the push shaft 3;
a fixing hole 191 is formed in the center of the sliding spring piece 19, and second clamping blocks 192 are arranged on two sides of the sliding spring piece 19;
the fixing column 191 is clamped in the fixing hole 191, and the second clamping block 192 is clamped in the clamping groove 306.
In one embodiment, as shown in fig. 1-6, one end of the push shaft 3 extending out of the box body is provided with a trigger 35, the other end is provided with a push shaft through hole, a positioning column is arranged in the push shaft through hole, and a return spring 36 is arranged on the positioning column.
The utility model provides a pair of direct current trigger switch with dual contact structure, when being used for having brush direct current switch, its working process as follows:
when the trigger 35 is pressed down, the push shaft 3 is driven to slide rightwards, the push shaft 3 drives the brake pad 17 to slide rightwards firstly, so that the movable contact support 7 is disconnected from the brake terminal 18, then the swing pad 4 is driven to slide rightwards, and the first movable contact 6 is driven to slide on the movable contact support 7, when the sliding exceeds the middle point of the first movable contact 6, the first movable contact 6 has an upward seesaw action, so that the movable contact 15 on the first movable contact 6 is communicated with the power input terminal 8, and the movable contact support 7 is communicated with the power input terminal 8; the moving contact support 7 and the tip parts of the negative terminal 9 respectively penetrate through the circuit board 10 and are welded together through the connecting sheet 11 arranged on the circuit board 10, so that the moving contact support 7, the power input terminal 8 and the negative terminal 9 are simultaneously connected.
The trigger 35 is continuously pressed to the bottom, the push shaft 3 drives the movable contact spring 13 and the sliding block 12 to slide rightwards, the sliding block 12 drives the second movable contact 14 to slide rightwards, so that the movable contact 15 on the second movable contact 14 is connected with the fixed contacts 16 on the power input terminal 8 and the negative terminal 9, the second movable contact 14 is connected with the power input terminal 8 and the negative terminal 9, and the auxiliary connection is realized, so that the capacity of the switch for bearing current is larger.
When the trigger 35 is pressed, the sliding reed 19 slides rightwards on the circuit board 10, so that the output resistance signal on the circuit board 10 is changed from large to small, and the voltage on the circuit board 10 connected with the switch is correspondingly changed from low to high, thereby realizing the speed-regulating and voltage-boosting functions of the electric tool.
When the trigger 35 is released, the push shaft 3 performs reset sliding leftwards under the action of the reset spring 36, and the second moving contact 14 is separated from the power input terminal 8 and the negative terminal 9, so that the second moving contact 14 is disconnected from the power input terminal 8 and the negative terminal 9; then, the first movable contact 6 also slides leftwards, and when the first movable contact 6 exceeds the midpoint of the first movable contact 6, the first movable contact 6 performs a downward seesaw motion, so that the first movable contact 6 is disconnected from the power input terminal 8, and the switch is completely powered off.
In the process that the first moving contact 6 moves leftwards, the brake pad 17 is driven to move leftwards, so that the moving contact support 7 is communicated with the brake terminal 18, and the brake function is switched on and off.
In the process of releasing the trigger 35, the sliding reed 19 slides leftwards on the circuit board 10, so that the output resistance signal on the circuit board 10 is changed from small to large, and the voltage on the circuit board 10 connected with the switch is correspondingly changed from high to low, thereby realizing the speed regulation and voltage reduction functions of the electric tool.
It should be noted that, when the switch is applied to the brushless electric tool, the switch does not need to be provided with the brake terminal 18 and the brake pad 17 because the brake is controlled by the electronic circuit board according to the characteristics of the brushless electric tool.
When the switch is applied to the brushless electric tool, the first reversing rotary table 20 is rotated to drive the magnet base 21 to rotate at the center of the first reversing rotary table 20, the magnet base 21 is internally provided with a first magnet 22 and a second magnet 23 with opposite polarities, when the first reversing rotary table 20 is positioned in the left direction, the first magnet 22 and the Hall element 24 on the circuit board 10 are positioned on the same straight line, and the output of the Hall element 24 is a positive level; the first reversing rotary table 20 is rotated to the right direction by shifting the bulge on the first reversing rotary table 20, the first magnet 22 and the Hall element 24 on the circuit board 10 are dislocated, the second magnet 23 of the magnet and the Hall element 24 on the circuit board 10 are on the same straight line, and the output of the Hall element 24 is changed into a negative level due to the fact that the polarities of the two magnets are opposite. Two groups of different level signals are output to the circuit board 10 to control the forward rotation and the reverse rotation of the brushless motor, thereby realizing the reversing function of the switch.
It can be understood that when the first commutation dial 20 is located in the left direction, the first magnet 22 and the hall element 24 on the circuit board 10 are in the same straight line, and the hall element 24 can also output a positive level; the first reversing rotary table 20 is rotated to the right direction by shifting the bulge on the first reversing rotary table 20, the first magnet 22 and the Hall element 24 on the circuit board 10 are dislocated, and the second magnet 23 and the Hall element 24 on the circuit board 10 are on the same straight line, and because the polarities of the two magnets are opposite, the output of the Hall element 24 can be a negative level, and the specific situation can be artificially specified.
When the switch is applied to a brushed electric tool, the first reversing rotary table 28 is rotated to drive the small spring 28 and the reversing movable contact 23 to rotate around the center of the first reversing rotary table 28, when the first reversing rotary table 28 is positioned in the left direction, the reversing movable contact 23 is respectively contacted with the first reversing terminal 29, the second reversing terminal 30, the third reversing terminal 31 and the fourth reversing terminal 32, the protrusion on the first reversing rotary table 28 is shifted to the right direction to rotate the first reversing rotary table 28 to the right direction, and the reversing movable contact 23 is respectively contacted with the first reversing terminal 29, the second reversing terminal 30, the third reversing terminal 31 and the fourth reversing terminal 32, so that the reversing function of the switch is realized.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A direct current trigger switch with a double-contact structure is characterized by comprising a base body, an upper cover and a push shaft;
a swinging piece and a swinging piece spring are arranged at the top of one side of the push shaft, a first moving contact connected with the swinging piece is arranged at the top of the swinging piece, a moving contact support and a power supply input terminal are arranged above the first moving contact, and a negative terminal is arranged at the other side of the push shaft;
a circuit board is arranged above the push shaft, and one end of the moving contact support and one end of the negative terminal both penetrate through the circuit board and are connected through a connecting sheet arranged on the circuit board;
a sliding block connected with the push shaft is arranged at the bottom of the push shaft, a moving contact spring is arranged on the sliding block, and a second moving contact is arranged at one end of the moving contact spring;
the first moving contact and the second moving contact are both provided with moving contacts, and the power supply input terminal and the negative terminal are both provided with static contacts;
the movable contact on the first movable contact is matched with the bottom of the power supply input terminal;
and the movable contact on the second movable contact is respectively matched with the power supply input end and the static contact on the negative terminal.
2. A direct current trigger switch having a dual contact structure according to claim 1, wherein: the other end of the moving contact spring is provided with a brake pad, and a brake terminal connected with the circuit board is arranged below the circuit board.
3. A direct current trigger switch having a dual contact structure according to claim 1 or 2, wherein: and a sliding reed capable of sliding on the circuit board is arranged at the top of the push shaft.
4. A direct current trigger switch having a dual contact structure according to claim 1, wherein: the top of circuit board is provided with first switching-over structure, first switching-over structure includes:
the first reversing turntable and the magnet seat are arranged above the circuit board;
a first magnet and a second magnet with opposite polarities are arranged in the magnet seat;
a Hall element is arranged on the circuit board corresponding to the position of the perpendicular bisector of the first magnet and the second magnet;
a magnet seat spring is arranged at the top of the magnet seat, a marble spring is arranged at the top of the magnet seat, and marbles are arranged at two ends of the marble spring;
rotating the first reversing turntable to enable the Hall element to output a positive level when the first magnet and the Hall element are positioned on the same straight line;
and rotating the first reversing turntable to enable the Hall element to output a negative level when the second magnet and the Hall element are positioned on the same straight line.
5. A direct current trigger switch having a dual contact structure according to claim 2, wherein: the top of circuit board is provided with the second structure of commuting, the second structure of commuting includes:
the bottom of the second reversing turntable is provided with a first reversing terminal, a second reversing terminal, a third reversing terminal and a fourth reversing terminal;
the top parts of the first reversing terminal and the third reversing terminal are both provided with reversing moving contacts, and reversing moving contact springs are arranged above the reversing moving contacts;
a spring is arranged between the two reversing moving contacts, and two ends of the spring are provided with marbles.
6. A direct current trigger switch having a dual contact structure according to claim 1 or 2, wherein: a first cavity is arranged at the bottom of the push shaft, and the sliding block is arranged in the first cavity;
the sliding block is provided with a second cavity, and the second moving contact and the moving contact spring are both arranged in the second cavity.
7. A direct current trigger switch having a dual contact structure according to claim 1 or 2, wherein: one side of the push shaft is provided with a boss, a swing sheet clamping groove is formed in the boss, and the swing sheet and a swing sheet spring are arranged in the swing sheet clamping groove.
8. A direct current trigger switch having a dual contact structure according to claim 1 or 2, wherein: one end of the swinging piece, which is close to the first moving contact, is provided with a first clamping block, a clamping hole is formed in the first moving contact, and the first clamping block is clamped in the clamping hole.
9. A direct current trigger switch having a dual contact structure according to claim 3, wherein: a push shaft groove is formed in the top of the push shaft;
a fixed column is arranged in the center of the push shaft groove, and clamping grooves are formed in the two sides of the push shaft;
a fixing hole is formed in the center of the sliding spring plate, and second clamping blocks are arranged on two sides of the sliding spring plate;
the fixing column is clamped in the fixing hole, and the second clamping block is clamped in the clamping groove.
10. A direct current trigger switch having a dual contact structure according to claim 1 or 2, wherein: the box body is provided with a box body, the box body is provided with a push shaft through hole, the push shaft extends out of the box body, a positioning column is arranged in the push shaft through hole, and a return spring is arranged on the positioning column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922024096.6U CN210925777U (en) | 2019-11-21 | 2019-11-21 | DC trigger switch with double contact point contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922024096.6U CN210925777U (en) | 2019-11-21 | 2019-11-21 | DC trigger switch with double contact point contact structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210925777U true CN210925777U (en) | 2020-07-03 |
Family
ID=71368717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922024096.6U Active CN210925777U (en) | 2019-11-21 | 2019-11-21 | DC trigger switch with double contact point contact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210925777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767474A (en) * | 2019-11-21 | 2020-02-07 | 浙江佳奔电子有限公司 | DC trigger switch with double contact point contact structure |
-
2019
- 2019-11-21 CN CN201922024096.6U patent/CN210925777U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767474A (en) * | 2019-11-21 | 2020-02-07 | 浙江佳奔电子有限公司 | DC trigger switch with double contact point contact structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210925777U (en) | DC trigger switch with double contact point contact structure | |
| CN103280358B (en) | Direct current speed adjustment switch | |
| CA2532760A1 (en) | Electric spice mill | |
| CN208271778U (en) | A kind of switch interlocking gear preventing maloperation | |
| CN110767474A (en) | DC trigger switch with double contact point contact structure | |
| US10727007B2 (en) | Armature circuit in electric tool and battery pack socket | |
| CN212706493U (en) | Electric tool | |
| CN209747368U (en) | DC trigger switch with on-off function | |
| CN216212955U (en) | Mini DC brushless trigger signal switch | |
| CN205140793U (en) | Brushless electric tool switch structure | |
| CN210668152U (en) | Direct current signal trigger switch based on Hall signal control | |
| CN103065852A (en) | Novel double-line forcefully-breaking rocker switch | |
| CN209118974U (en) | Electric tool signal exports potentiometer switch | |
| CN218274336U (en) | Automatic switching mechanism of dual-power automatic switching switch | |
| CN101499752B (en) | Interlock circuit | |
| CN215815658U (en) | DC brushless trigger signal switch with double dustproof structure | |
| CN115621058A (en) | Automatic switching mechanism of dual-power automatic switching switch | |
| CN218647825U (en) | Long-life master controller | |
| CN221079881U (en) | Indoor high-voltage grounding switch | |
| CN111668037A (en) | Low-voltage on-off switch | |
| CN212625323U (en) | Toggle switch | |
| CN2651919Y (en) | Trigger assembly | |
| CN220691892U (en) | Ultra-small dustproof waterproof brushless DC signal trigger switch | |
| CN218947585U (en) | Electric tool | |
| CN111584287B (en) | Single-pole double-throw low-voltage switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 325608 Longze village and Nanyang Village, Hongqiao Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: ZHEJIANG JIABEN ELECTRONICS Co.,Ltd. Address before: 325609 Tiancheng Industrial Zone, Yueqing City, Zhejiang Province Patentee before: ZHEJIANG JIABEN ELECTRONICS Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |