CN210607048U - Ultrashort self-locking switch - Google Patents

Abstract

The utility model provides an ultrashort self-locking switch, which comprises an outer shell, a pedestal, shift knob, interior casing and moving contact link gear, the shell block is in the base top, shift knob, interior casing and moving contact link gear all set up in the cavity of shell and base formation, shift knob connects in moving contact link gear top, shift knob can promote moving contact link gear downstream, the moving contact link gear cover is established in the interior casing including, moving contact link gear can reciprocate in the interior casing, be equipped with the hasp structure between moving contact link gear and the interior casing, when shift knob promotes moving contact link gear and pushes down, the hasp structure pushes down the state with moving contact link gear locking, when shift knob promotes moving contact link gear once more and pushes down, it relieves to push down the locking state. The advantage lies in, this kind of meshing relation between tooth for the lock state of changeing the tooth is very reliable, even receive external force collision also can not the natural unblock, simultaneously, shortens the whole length of switch to 23.5 millimeters.

Description

Ultrashort self-locking switch

Technical Field

The utility model relates to a switch especially relates to an ultrashort self-locking switch.

Background

The switch button is widely applied to various industries, the required switch button structure is different for different application environments, the switch button is pressed or bounced, so that the circuit is disconnected or closed, and the switch button used in some special environments needs to have the characteristics of water resistance, small size and large electrified current.

Because the small-sized switch is small in size, generally, the whole length is only about 30-20 mm, the size of the internal parts is correspondingly small, the reliability of the lock catch structure is limited, most small-sized switches are easy to automatically unlock when being collided by external force, and for the switch with high use frequency, how to improve the reliability of the lock catch and further reduce the size of the switch, so that the switch can adapt to the situation that the installation space is smaller, which is a problem that needs to be improved and solved continuously in the field at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the ultrashort self-locking switch which is more reliable in on-off, higher in safety, more reliable in lock catch and smaller in product size is provided.

In order to achieve the above object, the present invention provides the following solutions: the utility model provides an ultrashort self-locking switch, which comprises an outer shell, a pedestal, shift knob, interior casing and moving contact link gear, the shell block is in the base top, shift knob, interior casing and moving contact link gear all set up in the cavity of shell and base formation, shift knob connects in moving contact link gear top, shift knob can promote moving contact link gear downstream, the moving contact link gear cover is established in the interior casing including, moving contact link gear can reciprocate in the interior casing, be equipped with the hasp structure between moving contact link gear and the interior casing, when shift knob promotes moving contact link gear and pushes down, the hasp structure pushes down the state with moving contact link gear locking, when shift knob promotes moving contact link gear once more and pushes down, it relieves to push down the locking state.

Furthermore, a static contact is arranged on the base, the moving contact linkage mechanism comprises a push tooth, a rotating tooth, a push rod and a moving contact piece, the lower end of the switch button is in contact with the upper end face of the push tooth, the rotating tooth is sleeved in the push tooth, the push rod abuts against the lower end of the rotating tooth, a through hole is formed in the middle of the moving contact piece, the push rod penetrates through the through hole of the moving contact piece, and a moving contact is arranged on the moving contact.

Furthermore, a clamping groove is formed in the pushing tooth, a clamping hook structure is arranged at the upper end of the rotating tooth, and the clamping groove limits the downward movement distance of the clamping hook structure, so that the rotating tooth cannot be separated from the pushing tooth under the condition of not receiving external force.

Further, the hasp structure is including setting up the commentaries on classics tooth convex tooth on changeing the tooth outline, setting up the first concave tooth on the inner wall of inner shell and setting up the second concave tooth on the inner wall of inner shell, and first concave tooth and second concave tooth bottom are equipped with the concave tooth inclined plane, and first concave tooth degree of depth is greater than the second concave tooth degree of depth.

Furthermore, the ejector rod is of a hollow structure, a first reset spring is arranged in the hollow structure, one end of the first reset spring abuts against the bottom of the ejector rod, and the other end of the first reset spring abuts against the base.

Furthermore, the base is provided with a limiting boss for limiting and fixing the first return spring.

Furthermore, a second return spring is sleeved on the outer wall of the ejector rod, one end of the second return spring abuts against the bottom of the rotating tooth, and the other end of the second return spring abuts against the movable contact piece.

Furthermore, the hook structure at the upper end of the rotating tooth is composed of four hook columns which are arranged in a circumferential equidistant array.

Furthermore, the outer wall of the pushing tooth is provided with a pushing tooth convex tooth.

Furthermore, the number of the pushing tooth convex teeth, the rotating tooth convex teeth and the first concave teeth is the same.

The utility model discloses an useful part lies in:

the utility model discloses a be different from present hasp structure completely for the hasp mode is more reliable, and the hasp structure is including setting up changeing tooth dogtooth on changeing the tooth outline, setting up the first concave tooth on the inner wall of inner shell and setting up the concave tooth of second on inner wall of inner shell, and first concave tooth and the concave tooth bottom of second are equipped with the concave tooth inclined plane, and first concave tooth degree of depth is greater than the concave tooth degree of depth of second. The outer wall of the pushing tooth is also provided with a pushing tooth convex tooth, the pushing tooth convex tooth pushes the rotating tooth convex tooth, the contact surface of the pushing tooth convex tooth and the rotating tooth convex tooth is an inclined plane, when the rotating tooth convex tooth is about to leave the first concave tooth, the rotating tooth convex tooth enters the second concave tooth along with the inclined plane, is in a pressing unlocking state when being in the first concave tooth, and is in a pressing locking state when being in the second convex tooth. The meshing relation between the teeth ensures that the buckling state of the rotating teeth is very reliable and the rotating teeth cannot be naturally unlocked even if being collided by external force.

Drawings

Fig. 1 is a schematic cross-sectional view of an ultra-short self-locking switch of the present invention.

Fig. 2 is a schematic structural view of the housing of the ultra-short self-locking switch of the present invention.

Fig. 3 is a schematic structural view of a base in an ultra-short self-locking switch of the present invention.

Fig. 4 is a schematic structural view of the movable contact spring and the ejector pin in the ultra-short self-locking switch of the present invention.

Fig. 5 is a schematic structural view of a push tooth in an ultra-short self-locking switch of the present invention.

Fig. 6 is a schematic cross-sectional view of a push tooth in an ultra-short self-locking switch according to the present invention.

Fig. 7 is a schematic structural view of a rotary tooth of an ultra-short self-locking switch of the present invention.

Reference numerals: the device comprises a shell 1, a base 2, a fixed contact 101, a second return spring 102, a first return spring 103, a switch button 104, a movable contact 105, a shell mounting hole 11, a second concave tooth 12, a first concave tooth 13, a mounting column 21, a limiting boss 22, a push rod 106, a movable contact 107, a push tooth convex tooth 31, a push tooth structure 32, a clamping groove 33, a rotary tooth convex tooth 41, a rotary tooth structure 42 and a clamping hook column 43.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 7 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

An ultrashort self-locking switch comprises a shell 1, a base 2, a switch button 104, an inner shell and a moving contact linkage mechanism, wherein the shell is provided with a shell mounting hole 11, the base is provided with a mounting column 21 corresponding to the shell mounting hole, the shell 1 is clamped above the base 2, the switch button 104, the inner shell and the moving contact linkage mechanism are all arranged in a cavity formed by the shell 1 and the base 2, the switch button 104 is connected above the moving contact linkage mechanism, the switch button 104 can push the moving contact linkage mechanism to move downwards, the moving contact linkage mechanism is sleeved in the inner shell, the moving contact linkage mechanism can move upwards and downwards in the inner shell, a lock catch structure is arranged between the moving contact linkage mechanism and the inner shell, when the switch button 104 pushes the moving contact linkage mechanism to press downwards, the lock catch structure locks the moving contact linkage mechanism to be in a pressing state, when the switch button, the push-down lock state is released.

The base 2 is provided with a fixed contact 101, the movable contact linkage mechanism comprises a push tooth, a rotating tooth, a push rod 106 and a movable contact piece 107, the lower end of a switch button 104 is in contact with the upper end face of the push tooth, the rotating tooth is sleeved in the push tooth, the push rod 106 abuts against the lower end of the rotating tooth, a through hole is formed in the middle of the movable contact piece 107, the push rod 106 penetrates through the through hole of the movable contact piece 107, the bottom of the push rod 106 is of an outward flaring structure, the movable contact piece 107 penetrates through the push rod 106 but cannot penetrate through the flaring structure. The middle part of the ejector rod 106 is a hollow structure, a first reset spring 103 is arranged in the hollow structure, one end of the first reset spring 103 is propped against the upper wall of the hollow structure of the ejector rod 106, the other end of the first reset spring 103 is propped against the base 2, continuous upward thrust is given to the ejector rod 106 and the movable contact 107, and a limiting boss 22 for fixing and limiting the first reset spring 103 is further arranged on the base 2. In addition, a second return spring 102 is sleeved on the outer wall of the push rod 106, one end of the second return spring 102 is abutted against the bottom of the rotating tooth, and the other end of the second return spring is abutted against the movable contact 107, so that the second return spring gives continuous upward restoring force to the rotating tooth.

Be equipped with draw-in groove 33 in the pushing teeth, changeing the tooth upper end and being equipped with the trip structure, draw-in groove 33 restriction trip structure distance of moving downwards for changeing the tooth under the condition of not receiving external force, can't break away from in the pushing teeth. After the rotating teeth and the pushing teeth are assembled, the rotating teeth and the pushing teeth can only move within a certain range and cannot be naturally separated. The trip structure of the upper end of the rotary tooth is composed of four trip columns 43, and the four trip columns 43 are arranged in a circumferential equidistant array. The hooking columns 43 are arranged in an equidistant array mode, so that when the four hooking columns 43 are subjected to external extrusion force, the four hooking columns have certain inward contractibility, and the rotating teeth can be assembled in the pushing teeth conveniently.

When the switch button 104 is pressed down, the pushing tooth is pushed to move downwards along with the switch button, the pushing tooth pushes the rotating tooth to move downwards, the rotating tooth convex tooth 41 on the outer wall of the rotating tooth is located in the first concave tooth 13 in an initial state, the pushing tooth convex tooth 31 on the outer wall of the pushing tooth is always located in the first concave tooth 13 to move up and down, and due to the fact that the inclination angles of the pushing tooth structure 32 and the rotating tooth structure 42 are opposite, a rotating force is continuously given to the rotating tooth in the pushing process of the pushing tooth, and once the rotating tooth convex tooth 41 leaves the bottom end face of the first concave tooth 13 along with the downward movement of the rotating tooth, the rotating tooth can rotate into the second concave tooth 12. The rotating tooth enters the second concave tooth 12 to be in a locking state, the moving contact 105 is contacted with the fixed contact 101, and the circuit is communicated. Pressing the switch button 104 again, the rotating teeth 41 will leave the first concave teeth 13 and return to the first concave teeth 13 again, i.e. in the unlocked state, in the same manner as described above.

The utility model provides an ultrashort self-locking switch, still the cover is equipped with the annular circuit board on shell 1, is equipped with luminous LED lamp on the annular circuit board, still positive negative pole point on the circuit board, positive negative pole point can contact with the pin respectively, and the pin is drawn forth from base 2 bottom, and this LED lamp is detachable assembly, can install additional or get rid of it according to actual need.

Adopt the utility model discloses an electric spare part that hasp structure adopted all can design into flat structure, can reduce the whole length of switch, and the minimum length of traditional switch is about 30-40 millimeters, the utility model discloses a minimum switch of switch is about 23.5 millimeters.

It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. The utility model provides an ultrashort self-locking switch, a serial communication port, which comprises an outer shell, a pedestal, shift knob, interior casing and moving contact link gear, the shell block is in the base top, shift knob, interior casing and moving contact link gear all set up in the cavity that shell and base formed, shift knob connects in moving contact link gear top, shift knob can promote moving contact link gear downstream, moving contact link gear cover is established in the interior casing, moving contact link gear can reciprocate in the interior casing, be equipped with the hasp structure between moving contact link gear and the interior casing, when shift knob promotes moving contact link gear and pushes down, the hasp structure pushes down moving contact link gear locking state, when shift knob promotes moving contact link gear once more and pushes down, it relieves to push down the locking state.

2. The ultra-short self-locking switch as claimed in claim 1, wherein the base has a fixed contact, the moving contact linkage comprises a push tooth, a rotating tooth, a push rod and a moving contact, the lower end of the switch button contacts with the upper end of the push tooth, the rotating tooth is sleeved in the push tooth, the push rod abuts against the lower end of the rotating tooth, the moving contact has a through hole in the middle, the push rod passes through the through hole of the moving contact, and the moving contact has a moving contact.

3. The ultrashort self-locking switch of claim 2, wherein a slot is formed in the pushing tooth, and a hook structure is formed at the upper end of the rotating tooth, the slot limiting the downward movement distance of the hook structure, so that the rotating tooth cannot be separated from the pushing tooth without external force.

4. The ultrashort self-locking switch of claim 3, wherein the latching structure comprises a convex tooth of a rotary tooth disposed on the outer contour of the rotary tooth, a first concave tooth disposed on the inner wall of the inner housing, and a second concave tooth disposed on the inner wall of the inner housing, wherein the bottoms of the first concave tooth and the second concave tooth are provided with concave tooth slopes, and the depth of the first concave tooth is greater than the depth of the second concave tooth.

5. The ultrashort self-locking switch of claim 4, wherein the rod is a hollow structure, and a first return spring is disposed in the hollow structure, one end of the first return spring abuts against the bottom of the rod, and the other end of the first return spring abuts against the base.

6. An ultrashort self-locking switch as claimed in claim 5, wherein the base is provided with a limit boss for limiting and fixing the first return spring.

7. An ultrashort self-locking switch as claimed in claim 5, wherein the outer wall of the push rod is further sleeved with a second return spring, one end of the second return spring abuts against the bottom of the rotating tooth, and the other end abuts against the movable contact.

8. The ultra-short self-locking switch as claimed in claim 6, wherein the hook structure at the upper end of the rotary tooth is composed of four hook posts, and the four hook posts are arranged in a circumferentially equidistant array.

9. The ultra-short self-locking switch as claimed in claim 7, wherein the outer wall of the push tooth is provided with a push tooth convex tooth.

10. An ultrashort self-locking switch according to claim 9, wherein the number of the push tooth convex teeth, the rotary tooth convex teeth and the first concave teeth is the same.

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