CN219144027U - Button self-locking switch - Google Patents

Abstract

The utility model discloses a button self-locking switch, which comprises a base, a shell arranged on the base and a button movably arranged on the base, wherein a static contact piece is arranged on the base, a button seat is arranged at the bottom of the button, a base spring, a fixing part and a crochet needle are also arranged on the base, a main cavity for inserting the base spring is arranged in the middle of the button seat, a movable contact piece which moves along with the main cavity and contacts with the static contact piece after pressing the button is arranged in the main cavity, an annular groove is arranged at the outer side part of the button seat, a locking part is arranged at the center of the annular groove, a fixing hole is arranged in the fixing part, an opening with the width smaller than the aperture of the fixing hole is arranged above the fixing hole, a hook tail clamped into the fixing hole is arranged at one end of the crochet needle, a hook part inserted into the annular groove is arranged at the other end of the crochet needle, and a notch for clamping the hook part is arranged on the locking part. The button self-locking switch provided by the utility model has the advantages that the inner crochet hook is directly clamped into the fixed part, the installation is quick, and the production is convenient.

Description

Button self-locking switch

Technical Field

The utility model belongs to the technical field of switches, and particularly relates to a button self-locking switch.

Background

The button self-locking switch is a common switch device and is characterized in that after a button of the switch is pressed, the switch is switched on and keeps self-locking, when the button self-locking switch is pressed for the second time, the switch is switched off and rebounds, the existing button self-locking switch usually uses a self-locking crochet hook structure, and the button self-locking switch has small pressing sound and simple structure.

For example, patent document CN215644198U discloses a self-locking switch comprising a housing, a movable seat, an elastic member and a self-locking crochet; the switch unit is arranged in the shell, and the movable seat is movably arranged in the shell and used for controlling the switch unit to be switched on and off; the self-locking crochet hook is connected between the shell and the movable seat and locks the movable seat when the switch unit is connected; the elastic component is used for providing reset elastic force for the movable seat; the movable seat is connected with a button outside the shell through a connecting rod; the side part of the shell is correspondingly provided with an opening and a positioning hole, one end hook part of the self-locking hook needle is inserted into the positioning hole, the other end hook part passes through the opening and stretches into a locking groove on the movable seat, the opening is provided with a limiting elastic sheet, and the limiting elastic sheet is elastically pressed on the outer side of the self-locking hook needle.

However, the push-button self-locking switch proposed by the above patent still has the following disadvantages: the whole assembly production efficiency of the switch is low, particularly, because the crochet hook needs to be reversely inserted into a limiting hole on the shell, the installation process of the crochet hook is complicated, and the installation difficulty is increased; on the other hand, the limiting elastic piece is arranged at the opening of the shell, the size of the limiting elastic piece is smaller, and the difficulty of switch assembly is further increased.

Disclosure of Invention

Aiming at the problem of lower production efficiency caused by the internal structure of the existing button self-locking switch, the following utility model is provided:

the utility model provides a button auto-lock switch, includes the base, installs casing on the base, the button on the base is located in the activity, install quiet contact on the base, the button bottom is equipped with the button seat, still be equipped with base spring, fixed part, crochet hook on the base, be equipped with in the middle of the button seat and supply base spring male main cavity, be equipped with in the main cavity and press the button back along with main cavity together remove and with quiet contact looks contact movable contact, the lateral part of button seat is equipped with the ring channel, ring channel center department is equipped with locking part, be equipped with the fixed orifices in the fixed part, the fixed orifices top is equipped with the width and is less than the opening of fixed orifices aperture, crochet hook one end is equipped with the width between fixed orifices and opening for the crochet hook card to go into the hook tail in the fixed orifices, and the other end is equipped with the hook of inserting in the ring channel, be equipped with behind the button is pressed to move and blocked or break away from by the hook on the locking part. According to the utility model, the crochet hook is directly clamped into the fixing hole from the opening of the fixing part through the hook tail, so that the crochet hook and the base can be mounted, the whole mounting process is convenient and quick, and the production efficiency of the switch is improved.

Further, the fixing part comprises two fixing plates which extend out from the base and are arranged at a certain gap, the end parts of the fixing plates are provided with hook-shaped structures, and the openings and the fixing holes are respectively arranged at the upper part and the lower part of the hook-shaped structures.

Further, the hook tail end of the crochet hook inclines obliquely upwards, a protruding part is arranged on the base, one end of the base spring is sleeved and propped against the hook tail, a limiting groove for the insertion of the inclined part of the hook tail is formed in the middle of the protruding part, and the hook tail is clamped between the limiting grooves in an upward inclined mode so as to prevent the crochet hook from rotating on the fixing part.

Further, a hook body is arranged between the hook part and the hook tail of the crochet, the fixing part further comprises a limiting plate extending out of the base, and the limiting plate is attached to the hook body so as to prevent the crochet from falling out of the fixing part.

Further, a partition plate which divides the main cavity into a first cavity and a second cavity is arranged in the main cavity, the first cavity is located above the second cavity, the movable contact is transversely inserted into the first cavity, a movable piece spring which is used for attaching and pressing the movable contact to the partition plate is further arranged in the first cavity, and a base spring is inserted into the second cavity.

Further, a stop block positioned above the movable contact piece transversely extends on the first cavity to limit the maximum rebound stroke of the movable contact piece and prevent the excessive deformation of the movable piece spring.

Further, the top downwardly extending of first cavity has the protrusion head that is cup jointed by moving leaf spring one end, be equipped with the protrusion head that the other end of supply moving leaf spring cup jointed on the moving contact, be connected comparatively stably between moving leaf spring and the first cavity, be difficult for taking place the skew.

Further, the bottom of the second chamber is downwards extended to form a protruding head sleeved by the base spring, so that the stability of connection between the base spring and the button seat is improved.

Further, a gear piece positioned above the locking part and used for guiding the movement of the crochet hook into the notch of the locking part is further arranged in the annular groove, the gear piece divides the annular groove into a locking groove and a restoring groove, the hook part enters the notch after moving along the locking groove, and the hook part returns to the initial position after moving along the restoring groove.

Advantageous effects

According to the button self-locking switch provided by the utility model, the fixing part is arranged on the base, the opening and the fixing hole are arranged on the fixing part, the tail part of the crochet hook is aligned with the opening of the fixing part, and then the button self-locking switch can be clamped into the fixing hole after being pressed, namely, the matching process between the crochet hook and the base is convenient and quick, and the production efficiency of the button self-locking switch is improved.

Drawings

FIG. 1 is a schematic diagram showing the internal structure of a push button self-locking switch according to the present utility model;

FIG. 2 is a schematic diagram showing an internal structure of a push button self-locking switch according to the present utility model;

FIG. 3 is a schematic perspective view of a push button self-locking switch according to the present utility model;

FIG. 4 is a schematic perspective view of a base and a part of a connecting member according to the present utility model;

FIG. 5 is a schematic perspective view of a base in the present utility model;

FIG. 6 is a schematic perspective view of a button base according to the present utility model;

FIG. 7 is a schematic diagram of a front view of a button base according to the present utility model;

FIG. 8 is a schematic side view of a button housing according to the present utility model;

fig. 9 is a schematic perspective view of a crochet hook according to the present utility model.

The correspondence between the reference numerals and the component names in the drawings is as follows:

1. a base; 2. a housing; 3. a button; 4. a button seat; 11. a base spring; 12. a fixing part; 13. a fixing plate; 14. a fixing hole; 15. a limiting plate; 16. a protruding portion; 17. a limit groove; 18. a hook-like structure; 19. an opening; 21. a crochet hook; 22. a moving plate spring; 23. a movable contact; 24. a stationary contact; 31. a locking part; 32. an annular groove; 33. a gear member; 34. a notch; 35. a locking groove; 36. a recovery groove; 41. a main chamber; 42. a partition plate; 43. a first chamber; 44. a second chamber; 45. a stop block; 46. a protruding head; 211. a hook portion; 212. hooking tail; 213. a hook body.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in the following examples.

It will be apparent that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present application.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements 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 utility model.

As shown in fig. 1-3, a button self-locking switch comprises a base 1, a shell 2 arranged on the base 1, and a button 3 movably arranged on the base 1, wherein a base spring 11, a static contact piece 24, a fixing part 12 and a crochet hook 21 are arranged on the base 1, one end of the base spring 11 is fixed on the base 1, the static contact piece 24 is provided with a left piece and a right piece which are respectively inserted and arranged at two sides of the base spring 11, as shown in fig. 9, the crochet hook 21 is in a transverse U-shaped arrangement and comprises a hook part 211 and a hook tail 212 with two bent ends, a hook body 213 is arranged between the hook part 211 and the hook tail 212, a button seat 4 is arranged at the bottom of the button 3, a main cavity 41 which is hollow for the insertion of the other end of the base spring 11 is arranged at the bottom of the button seat 4, a movable contact piece 23 is transversely inserted into the upper part of the main cavity 41, the movable contact piece 23 is integrally connected with the main cavity 41, and after the button 3 is pressed, the movable contact piece 23 moves together with the main cavity 41 and contacts with the static contact piece 24.

As shown in fig. 4-5, the fixing portion 12 extends from the base 1 to form a fixing portion 12, the fixing portion 12 includes two fixing plates 13 extending vertically from the base 1, a fixing hole 14 is formed at the bottom of the fixing plate 13, a hook-shaped structure 18 bent inward is formed at the upper end of the fixing plate 13, an opening 19 with a width slightly smaller than that of the fixing hole 14 is formed between the two hook-shaped structures 18, the opening 19 is communicated with the fixing hole 14, the width of the tail portion of the crochet 21 is between the opening 19 and the fixing hole 14, the crochet 21 and the base 1 can be assembled and connected only by aligning the crochet tail 212 of the crochet 21 with the opening 19 between the fixing plates 13, and the crochet 21 is relatively convenient and quick to install in the fixing hole 14, and the hook portion 211 of the crochet 21 is opposite to the outer side portion of the button seat 4.

The outer side part of the button seat 4, which is opposite to the hook part 211, is provided with an annular groove 32 for inserting the hook part 211 of the crochet 21, a convex locking part 31 is arranged in the annular groove 32, the locking part 31 is of a heart-shaped structure, a notch 34 is arranged at the top of the locking part, after the button 3 is pressed, the annular groove 32 and the movable contact piece 23 move downwards relative to the crochet 21 together, the hook part 211 moves into the notch 34 of the locking part 31 relative to the annular groove 32, the switch completes self-locking, and at the moment, the movable contact piece 23 is in contact conduction with the static contact piece 24, the button 3 is pressed again, the annular groove 32 moves downwards continuously, the crochet 21 is separated from the locking part 31 along the annular groove 32, and the self-locking is released, and the movable contact and the static contact are separated.

In this embodiment, the base 1 is provided with a protruding portion 16 for sleeving the base spring 11, a limiting groove 17 penetrating the protruding portion 16 is formed in the middle of the protruding portion, the end portions of the hook tails 212 of the crochet needle 21 pair incline slightly upwards and are inserted into the limiting groove 17, the base spring 11 is sleeved on the protruding portion 16 and then abuts against the inclined portion of the hook tails 212, the protruding portion 16 ensures that the base spring 11 is fixed inside and cannot deviate relative to the base 1, the limiting groove 17 is clamped on two sides of the hook tails 212 of the crochet needle 21 to limit the base spring 11 to rotate relative to the fixing portion 12, meanwhile, the base spring 11 abuts against the hook tails 212, and the firmness of fixing the crochet needle 21 on the base 1 is improved.

In this embodiment, the fixing portion 12 further includes a limiting plate 15 extending from the base 1, the limiting plate 15 and the fixing plate 13 are perpendicular to each other and are opposite to the fixing hole 14, after the crochet hook 21 is installed in the fixing hole 14, when the crochet hook 21 is installed in the fixing hole 14, the crochet hook 213 is attached to the limiting plate 15 first, and then the crochet hook 212 is opposite to the opening 19 of the fixing portion 12, and the installation can be completed by pressing the crochet hook 212 downward into the fixing hole 14, and the crochet hook 213 is supported by the fixing plate 13, and the crochet hook 21 cannot be easily separated from the fixing hole 14.

As shown in fig. 6-8, in the present embodiment, the two sides and the bottom of the main chamber 41 are both provided with openings 19, a partition plate 42 is transversely extended in the middle of the main chamber 41, the partition plate 42 divides the main chamber 41 into a first chamber 43 above and a second chamber 44 below, a movable contact piece 23 with two ends penetrating from the first chamber 43 is transversely inserted into the first chamber 43, a part of the movable contact piece 23 protruding from the first chamber 43 is located right above the end of the stationary contact piece 24, a movable piece spring 22 for pressing the movable contact piece 23 against the partition plate 42 is arranged between the movable contact piece 23 and the first chamber 43, the other end of the base spring 11 is inserted into the second chamber 44,

in this embodiment, the two side openings 19 of the first chamber 43 are laterally extended with a stopper 45 above the movable contact piece 23, and during pressing the button 3, the movable contact piece 23 contacts with the stationary contact piece 24, and at this time, the button 3 is generally not at the bottom, so that the movable contact piece 23 is deformed by the movable contact piece spring 22 and rises relative to the partition plate 42, and the stopper 45 is blocked above the movable contact piece 23, so as to limit the travel of the button 3, and prevent the movable contact piece 23 from rising too much relative to the partition plate 42 and causing the movable contact piece 23 to incline or the movable contact piece spring 22 to excessively deform.

In this embodiment, the top of the first chamber 43 extends downward to form a protruding head 46 sleeved on one end of the movable plate spring 22, the center of the movable contact plate 23 extends upward to form a protruding head 46 sleeved on the other end of the movable plate spring 22, and the movable plate spring 22 is sleeved between the two protruding heads 46, so that the connection is stable and the movable plate spring is not easy to deviate.

Similarly, the bottom of the second chamber 44, that is, the bottom of the partition plate 42, extends downward to form a protruding head 46 that is sleeved with the base spring 11, and the moving plate spring 22 and the base spring 11 are sleeved on the protruding head 46, so that the moving plate spring and the base spring 11 are not easy to deviate during the pressing process of the button 3. The protruding head 46 can prevent the movable plate spring 22 and the movable contact plate 23 from being easily deviated, and improves the stability of connection between the two.

How the crochet hook 21 acts with the annular groove 32 and the locking portion 31 to achieve self-locking of the switch is described in further detail below.

In this embodiment, the gear member 33 located above the notch 34 further extends downward in the annular groove 32, the annular groove 32 is divided into a locking groove 35 located at the left side of the gear member and a restoring groove 36 located at the right side of the gear member by the gear member, the locking groove 35 extends obliquely upward from the bottom of the locking portion 31, then extends upward, and finally extends obliquely downward to the notch 34, and the restoring groove 36 extends obliquely upward from the locking portion 31 in the opposite direction to the locking groove 35, then extends upward, and finally extends obliquely downward into the notch 34 in the opposite direction to the locking groove 35.

In the initial state, the hook 211 of the hooked needle 21 is positioned at the bottoms of the locking groove 35 and the restoring groove 36, after the button 3 is pressed, the annular groove 32 moves downwards, the hook 211 of the hooked needle 21 moves into the notch 34 along the locking groove 35 to realize the self-locking of the switch, and after the button 3 is pressed again, the hook 211 moves back to the initial position along the restoring groove 36 to release the self-locking of the switch.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides a button self-locking switch, includes base (1), installs casing (2) on base (1), activity locate button (3) on base (1), install static contact piece (24) on base (1), button (3) bottom is equipped with button seat (4), its characterized in that: still be equipped with base spring (11), fixed part (12), crochet hook (21) on base (1), be equipped with in the middle of button seat (4) and supply base spring (11) male main cavity (41), be equipped with in main cavity (41) behind pressing button (3) along with main cavity (41) remove and with moving contact piece (23) that contact in static contact piece (24), the lateral part of button seat (4) is equipped with ring channel (32), ring channel (32) center department is equipped with locking part (31), be equipped with fixed orifices (14) in fixed part (12), fixed orifices (14) top is equipped with opening (19) that the width is less than fixed orifices (14) aperture, crochet hook (21) one end is equipped with hook tail (212) that the width is between fixed orifices (14) and opening (19) for crochet hook (21) card to go into in fixed orifices (14), and the other end is equipped with hook portion (211) that inserts in ring channel (32), be equipped with behind pressing button (3) on locking part (31), hook portion (211) remove relatively and block or break away from breach (34).

2. The push button self-locking switch of claim 1, wherein: the fixing part (12) comprises two fixing plates (13) which extend out from the base (1) and are arranged at a certain gap, a hook-shaped structure (18) is arranged at the end part of the fixing plate (13), and an opening (19) and a fixing hole (14) are respectively arranged at the upper part and the lower part of the hook-shaped structure (18).

3. The push button self-locking switch of claim 2, wherein: the end part of the hook tail (212) of the crochet hook (21) is inclined upwards, the base (1) is provided with a protruding part (16), one end of the base spring (11) is sleeved and pressed on the hook tail (212), and a limiting groove (17) for inserting the inclined part of the hook tail (212) is arranged in the middle of the protruding part (16).

4. A push button self-locking switch according to claim 3, wherein: a hook body (213) is arranged between the hook part (211) and the hook tail (212) of the crochet hook (21), the fixing part (12) further comprises a limiting plate (15) extending out from the base (1), and the limiting plate (15) is attached to the hook body (213).

5. The push button self-locking switch of claim 1, wherein: the main chamber (41) is internally provided with a partition plate (42) for dividing the main chamber (41) into a first chamber (43) and a second chamber (44), the first chamber (43) is positioned above the second chamber (44), the movable contact piece (23) is transversely inserted into the first chamber (43), the first chamber (43) is internally provided with a movable piece spring (22) for attaching and pressing the movable contact piece (23) on the partition plate (42), and the second chamber (44) is internally provided with a base spring (11).

6. The push button self-locking switch of claim 5, wherein: a stop block (45) positioned above the movable contact piece (23) transversely extends on the first chamber (43).

7. The push button self-locking switch of claim 5, wherein: the top of the first chamber (43) downwards extends to form a protruding head (46) sleeved at one end of the driven plate spring (22), and the movable contact plate (23) is provided with a protruding head (46) sleeved at the other end of the driven plate spring (22).

8. The push button self-locking switch of claim 5, wherein: the bottom of the second chamber (44) is downwards extended with a protruding head (46) sleeved by the base spring (11).

9. The push button self-locking switch of claim 1, wherein: the novel hook is characterized in that a gear piece (33) which is positioned above the locking part (31) to guide the movement of the crochet hook (21) into a notch (34) of the locking part (31) is further arranged in the annular groove (32), the gear piece divides the annular groove (32) into a locking groove (35) and a restoring groove (36), the hook part (211) enters the notch (34) after moving along the locking groove (35), and the hook part (211) returns to the initial position after moving along the restoring groove (36).

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