CN218647807U

CN218647807U - Button speed regulation switch

Info

Publication number: CN218647807U
Application number: CN202223282053.6U
Authority: CN
Inventors: 吴世清
Original assignee: Yueqing Huiyang Electromechanical Co ltd
Current assignee: Yueqing Huiyang Electromechanical Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-03-17
Anticipated expiration: 2032-12-06

Abstract

The utility model provides a button speed governing switch, which comprises a housin, a button, the push rod, circuit board and shell fragment, the casing includes apron and the base that upper and lower lock set up, the push rod includes integrative shell fragment installation department and the connecting rod portion that links to each other, enclose on apron and the base and close the first holding chamber that is suitable for holding the shell fragment installation department, and be suitable for the second holding chamber of holding part connecting rod portion, the top in second holding chamber is equipped with the opening that supplies the connecting rod portion to stretch out, the circuit board is installed directly over the shell fragment installation department, and the one side towards the shell fragment installation department is equipped with the speed governing contact that offsets with the shell fragment, the shaping of shell fragment installation department has at least one lug towards the extension of circuit board direction. Because the push rod can be designed to be integrally connected, compared with the push rod adopting a two-section riveting mode in the prior art, the structure is simpler, and the assembly is quick and convenient; in addition, the lug on the elastic sheet mounting part can play a role in limiting the circuit board, and the situation that the elastic sheet deforms due to excessive extrusion of the circuit board is avoided.

Description

Button speed regulation switch

Technical Field

The utility model relates to the technical field of switches, concretely relates to button speed governing switch.

Background

The button speed regulating switch is widely applied to the field of handheld electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers and the like.

The existing button speed regulation switch comprises a base, a button, a push rod, an elastic sheet and a circuit board, wherein the push rod is provided with a first section assembled with the button and a second section assembled with the elastic sheet, a speed regulation contact sheet abutting against the elastic sheet is arranged on the circuit board, a through hole for the first section to penetrate through is formed in the top of the base, and the size of the second section is larger than that of the through hole; in addition, the circuit board is easy for assembly personnel to excessively extrude the elastic sheet during assembly, so that the elastic sheet is not easy to restore to the original state, and therefore the circuit board can not be in good contact with the speed regulation contact piece, and normal use of the switch is affected.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the speed governing switch structure among the prior art is complicated, manufacturing cost is high to a simple structure, low in production cost's button speed governing switch are provided.

For this, the utility model provides a button speed governing switch, including casing, button, push rod, circuit board and shell fragment, the casing includes apron and the base that upper and lower lock set up, the push rod includes integrative shell fragment installation department and the connecting rod portion that links to each other, the apron with enclose on the base and close the formation and be suitable for holding the first holding chamber of shell fragment installation department to and be suitable for the accommodate part the second holding chamber of connecting rod portion, the top in second holding chamber is equipped with the confession the opening that the connecting rod portion stretches out, the opening is including being located respectively first groove and second groove on apron and the base, the circuit board install in directly over the shell fragment installation department, and the orientation the one side of shell fragment installation department be equipped with the speed governing contact that the shell fragment offseted, the circuit board installation department shaping has at least one court the lug that the shell fragment direction extends.

The number of the elastic pieces is two, the number of the convex blocks is three, one of the convex blocks is located between the two elastic pieces, and the other two convex blocks are located on two sides of the length direction of the elastic piece mounting portion.

The elastic sheet comprises a U-shaped mounting part and at least one elastic arm which is suitable for abutting against the speed regulation contact piece.

The elastic arms are two in number, and the middle parts of the two elastic arms are connected through a connecting rib.

The shaping of shell fragment installation department has with the first mounting groove that the U-shaped installation department corresponds the setting.

And a sealing structure is arranged between the connecting rod part and the shell.

The seal structure includes: the second mounting groove and the third mounting groove are sequentially arranged in the second accommodating cavity of the shell along the moving direction of the push rod; first rubber sleeve and second rubber sleeve all overlap and locate on the push rod, the main part of first rubber sleeve stretches out the casing sets up outward, and the bottom is located in the second mounting groove, the second rubber sleeve is located in the third mounting groove.

And a step which is propped against the circuit board is formed on the inner wall of the base.

The plug-in structure is arranged between the cover plate and the base and comprises a plurality of slots arranged on the base and plug-in blocks arranged on the cover plate and in plug-in connection with the slots in a matched mode.

The push rod is integrally formed by injection molding.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a button speed regulating switch, because apron and base enclose to close and form the first holding chamber that is suitable for holding the shell fragment installation department to and be suitable for the second holding chamber that holds partial connecting rod portion, the top in second holding chamber is equipped with the opening that supplies the connecting rod portion to stretch out, the opening includes first groove and the second groove that is located apron and base respectively; during assembly, the push rod can be placed on the base firstly, then the upper cover plate is buckled, and the first groove and the second groove are enclosed to form an opening for the connecting rod part to extend out, so that the push rod can be designed to be integrally connected; in addition, the elastic sheet mounting part is formed with at least one convex block extending towards the direction of the circuit board, and when the elastic sheet mounting part is assembled, the convex block can limit the circuit board, so that the phenomenon that the elastic sheet deforms due to excessive extrusion of the circuit board is avoided, and the service life of a product is prolonged.

2. The utility model provides a button speed governing switch, the elastic arm has two, and the middle part of two elastic arms links to each other through the splice bar, and the mode that adopts the splice bar can improve the connection stability of two elastic arms, avoids appearing the inconsistent condition of two elastic arm perk angles.

3. The utility model provides a button speed governing switch, seal structure includes: the second mounting groove and the third mounting groove are sequentially arranged in a second accommodating cavity of the shell along the moving direction of the push rod; the push rod is located to first rubber sleeve and second rubber sleeve, all overlaps, and the main part of first rubber sleeve stretches out the outer setting of casing, and the bottom is located the second mounting groove, and the second rubber sleeve is located the third mounting groove. Through setting up two rubber sleeves and two mounting grooves for dust seal effect is better.

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 explosion structure diagram of the button speed regulation switch of the present invention;

FIG. 2 is a perspective view of the button speed control switch with the cover plate and the circuit board removed;

fig. 3 is a perspective view of the elastic sheet.

Description of reference numerals: 1. a housing; 2. a button; 3. a push rod; 4. a circuit board; 5. a spring plate; 6. a cover plate; 7. a base; 8. a spring plate mounting part; 9. a link section; 10. a bump; 11. a first accommodating cavity; 12. a second accommodating cavity; 13. a U-shaped mounting portion; 14. a resilient arm; 15. connecting ribs; 16. a first mounting groove; 17. a second mounting groove; 18. a third mounting groove; 19. a first rubber sleeve; 20. a second rubber sleeve; 21. a step; 22. a slot; 23. inserting a block; 24. a first groove; 25. a second 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.

Examples

The present embodiment provides a button speed-regulating switch, as shown in fig. 1, including a housing 1, a button 2, a push rod 3, a circuit board 4 and a spring sheet 5.

Casing 1, as shown in fig. 1, its apron 6 and base 7 that includes upper and lower lock setting, apron 6 with it is suitable for to close to form on the base 7 and holds the first holding chamber 11 of shell fragment installation department 8 to and be suitable for the housing part the second holding chamber 12 of connecting rod portion 9, the top in second holding chamber 12 is equipped with the confession the opening that connecting rod portion 9 stretches out, the opening is including being located respectively first groove 24 and second groove 25 on apron 6 and the base 7, apron 6 with be equipped with grafting structure between the base 7, grafting structure is including locating a plurality of slots 22 on the base 7, and locate on the apron 6, with the inserted block 23 that slot 22 adaptation was pegged graft. And a step 21 which is abutted against the edge of the circuit board 4 is formed on the inner wall of the base 7.

Push rod 3, as shown in fig. 1 and 2, it includes through moulding plastics integrative shell fragment installation department 8 and the connecting rod portion 9 that links to each other, the shaping of shell fragment installation department 8 has the first mounting groove 16 that is suitable for installation shell fragment 5, the shaping of shell fragment installation department 8 has three court the lug 10 that 4 directions of circuit board extend, one of them the lug 10 is located two between the shell fragment 5, two in addition the lug 10 is located 8 length direction's of shell fragment installation department both sides. Connecting rod portion 9 with be equipped with seal structure between the casing 1, seal structure includes: the second mounting groove 17 and the third mounting groove 18 are sequentially arranged in the second accommodating cavity 12 of the shell 1 along the moving direction of the push rod 3; first rubber sleeve 19 and second rubber sleeve 20 are all located the push rod 3 is last, the main part of first rubber sleeve 19 stretches out casing 1 sets up outward, and the bottom is located in second mounting groove 17, second rubber sleeve 20 is located in third mounting groove 18.

And the circuit board 4 is arranged right above the elastic sheet mounting part 8, and one surface of the elastic sheet mounting part 8 is provided with two speed regulation contact sheets (not shown in the figure) which are correspondingly abutted against the elastic sheets 5.

The elastic sheet 5, as shown in fig. 3, includes a U-shaped mounting portion 13 and two elastic arms 14 adapted to abut against the speed regulation contact piece, the U-shaped mounting portion 13 is assembled in a first mounting groove 16 of the elastic sheet mounting portion 8, and the middle portions of the two elastic arms 14 are connected through a connecting rib 15.

The utility model provides a button speed regulation switch, because apron 6 encloses with base 7 and closes and forms the first holding chamber 11 that is suitable for holding shell fragment installation department 8 to and be suitable for holding the second holding chamber 12 of partial connecting rod portion 9, the top of second holding chamber 12 is equipped with the opening that supplies connecting rod portion 9 to stretch out, the opening includes first groove 24 and second groove 25 that are located apron 6 and base 7 respectively; during assembly, the push rod 3 can be placed on the base 7 firstly, then the upper cover plate 6 is buckled, the first groove 24 and the second groove 25 are enclosed to form an opening for the connecting rod part 9 to extend out, so that the push rod 3 can be designed to be integrally connected, and compared with the push rod adopting a two-section riveting mode in the prior art, the structure is simpler, and the assembly is quick and convenient; in addition, the elastic sheet mounting part 8 is formed with at least one convex block 10 extending towards the direction of the circuit board 4, and when the elastic sheet mounting part is assembled, the convex block 10 can limit the circuit board 4, so that the phenomenon that the elastic sheet 5 deforms due to excessive extrusion of the circuit board is avoided, and the service life of a product is prolonged.

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 changes and modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a button speed governing switch, includes casing (1), button (2), push rod (3), circuit board (4) and shell fragment (5), casing (1) is including apron (6) and base (7) that upper and lower lock set up, its characterized in that, push rod (3) are including integrative shell fragment installation department (8) and the connecting rod portion (9) that link to each other, apron (6) with enclose on base (7) and close the formation and be suitable for holding first holding chamber (11) of shell fragment installation department (8) to and be suitable for the accommodate part second holding chamber (12) of connecting rod portion (9), the top in second holding chamber (12) is equipped with the confession connecting rod portion (9) the opening that stretches out, the opening is including being located respectively first groove (24) and second groove (25) on apron (6) and base (7), circuit board (4) install in directly over shell fragment installation department (8), and orientation the one side of shell fragment (8) be equipped with the contact piece that shell fragment (5) offseted, installation department (8) have at least one lug direction to extend 10).

2. A push button speed regulation switch according to claim 1 wherein there are two said tabs (5), and three said projections (10), one of said projections (10) being located between two of said tabs (5), and the other two of said projections (10) being located on opposite sides of the tab mounting portion (8) in the direction of the length.

3. Push button speed switch according to claim 1 or 2, characterised in that said resilient tab (5) comprises a U-shaped mounting portion (13) and at least one resilient arm (14) adapted to abut against said speed regulation contact.

4. Push button speed switch according to claim 3, characterised in that there are two of said resilient arms (14), the middle parts of the two resilient arms (14) being connected by a connecting rib (15).

5. The push-button speed regulation switch according to claim 3, wherein the spring plate mounting portion (8) is formed with a first mounting groove (16) disposed corresponding to the U-shaped mounting portion (13).

6. Push button speed switch according to claim 1, characterised in that a sealing arrangement is provided between the link part (9) and the housing (1).

7. The push button speed control switch of claim 6, wherein said sealing structure comprises:

the second mounting groove (17) and the third mounting groove (18) are sequentially arranged in the second accommodating cavity (12) of the shell (1) along the moving direction of the push rod (3);

first rubber sleeve (19) and second rubber sleeve (20), all overlap and locate on push rod (3), the main part of first rubber sleeve (19) stretches out casing (1) is set up outward, and the bottom is located in second mounting groove (17), second rubber sleeve (20) are located in third mounting groove (18).

8. Push button speed control switch according to claim 1, characterized in that the inner wall of the base (7) is formed with a step (21) against the circuit board (4).

9. A push-button speed regulation switch according to claim 1, characterized in that an insertion structure is provided between the cover plate (6) and the base (7), the insertion structure comprises a plurality of insertion slots (22) provided on the base (7), and insertion blocks (23) provided on the cover plate (6) and adapted to be inserted into the insertion slots (22).

10. Push button speed regulation switch according to claim 1, characterized in that the push rod (3) is injection molded in one piece.