CN210296185U

CN210296185U - Button type door external inching switch

Info

Publication number: CN210296185U
Application number: CN201921208501.3U
Authority: CN
Inventors: 孙立军
Original assignee: CIXI TENGHUI AUTOMOBILE ELECTRIC FACTORY
Current assignee: CIXI TENGHUI AUTOMOBILE ELECTRIC FACTORY
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-04-10
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a button type door inching switch, which comprises a base and a shell arranged on the base, wherein a static contact piece is arranged in the base, and the static contact piece is provided with a silver contact; a return rod is arranged in the shell and is in sliding fit with the shell along the axial direction of the shell, the return rod is provided with a movable contact spring, a movable contact is arranged on the movable contact spring and is in contact fit with the silver contact, and an elastic piece for driving the movable contact to be far away from the silver contact is arranged in the shell; a button is movably arranged in the shell and is fixedly connected with the return rod. The utility model has the advantages of it is following and effect: the new mechanical structure of this scheme utilization has and uses more conveniently, is difficult for losing, the longer effect of life-span.

Description

Button type door external inching switch

Technical Field

The utility model relates to the technical field of switches, in particular to button type door external inching switch.

Background

In automobiles, there are many switches such as various light switches on an instrument panel, and the number of jog switches is also enormous. The inching switch on the automobile is characterized by timeliness and stability, and if the inching switch fails or fails, a plurality of safety problems are easily caused.

The current chinese patent with publication number CN104835657A discloses a contact switch structure, including movable contact portion, stationary contact portion, press outer button, switch on the contact body, stationary contact portion includes the stationary contact base, is equipped with the base plate on the stationary contact base, is equipped with the conductive part on the base plate, switches on the contact body and is the reed of a plurality of bendings, presses outer button and stationary contact base sliding connection, presses to be equipped with between outer button and the stationary contact base and to make and press the reset spring that the outer button resets, and the conductive part is netted. When the conductive contact is used, the pressing outer button is pressed down to move relative to the static contact base, the reed is gradually bent outwards after the pressing outer button is contacted with the conductive contact body, and the conduction is realized when the reed is contacted with the conductive part.

However, the contact switch structure has the following disadvantages: because in the pressing process, the conduction is realized by the contact of the press-bending spring leaf and the conductive part, the spring leaf is easy to break off under the condition of long-term use and repeated pressing, and the problem of short service life exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a button type door external inching switch adopts the return lever to drive the movable contact on the movable contact spring to silver contact motion, has the longer effect of life.

The above technical purpose of the present invention can be achieved by the following technical solutions: a push button type door external inching switch comprises a base and a shell arranged on the base, wherein a static contact is arranged in the base and provided with a silver contact;

a return rod is arranged in the shell and is in sliding fit with the shell along the axial direction of the shell, the return rod is provided with a movable contact spring, a movable contact is arranged on the movable contact spring and is in contact fit with the silver contact, and an elastic piece for driving the movable contact to be far away from the silver contact is arranged in the shell;

a button is movably arranged in the shell and is fixedly connected with the return rod.

By adopting the technical scheme, when the elastic piece is used, the static contact piece is electrically connected with an external circuit, the button is pressed into the shell, the button pushes the return rod to move into the shell, the return rod drives the movable contact piece and the movable contact to move towards the silver contact when moving, the movable contact and the silver contact are abutted to realize conduction, and at the moment, the elastic piece is compressed; after the press of the button is released, the movable contact is far away from the silver contact under the driving of the elastic force of the elastic piece, so that the return rod is reset, and the conduction between the movable contact and the static contact can be interrupted. Therefore, the return rod is adopted to drive the movable contact on the movable contact piece to move towards the silver contact to realize conduction, and the movable contact piece is not conducted after the button is released, so that the movable contact piece has the effects of convenience in use, difficulty in breakage and long service life.

The utility model discloses a further set up to: the elastic piece is set as a return spring, one end of the return spring is abutted against the movable contact piece, and the other end of the return spring is abutted against the base.

By adopting the technical scheme, after a user releases the press of the button, the movable contact is driven by the movable contact under the action of the elastic force of the return spring to be away from the silver contact, so that the return rod is reset, and the conduction is interrupted.

The utility model discloses a further set up to: the movable contact piece is provided with a connecting hole, the restoring rod is provided with an inserting column which is matched with the connecting hole in an inserting mode, the side wall of the inserting column is provided with a hook part, the hook part is matched with the movable contact piece in a hooking mode, an extension spring is arranged between the movable contact piece and the restoring rod, and the extension spring enables the movable contact piece to always have a motion trend of abutting against the hook part.

By adopting the technical scheme, under the elastic action of the extension spring, the lower end face of the movable contact piece is always abutted against the hook part of the side wall of the insertion column to realize the positioning of the movable contact piece.

The utility model discloses a further set up to: the shell is internally provided with a button recovery pad, one end of the button recovery pad is abutted to the button, and the other end of the button recovery pad is abutted to the shell.

Through adopting above-mentioned technical scheme, when the button pushes down, promote the button simultaneously and reply and fill up and push down, after loosening the button, reply under the effect of the restoring force of filling up at the button, drive button upward movement and make the button reset.

The utility model discloses a further set up to: the shell is provided with a dust cover which is arranged outside the button.

Through adopting above-mentioned technical scheme, the dust cover can play dustproof effect, can avoid the dust to enter into to the casing from the gap between button and the casing to a certain extent.

The utility model discloses a further set up to: the inner wall of the shell is provided with a rotation stopping block along the axial direction of the shell, and the outer wall of the return rod is provided with a rotation stopping groove matched with the rotation stopping block in a rotation stopping way.

Through adopting above-mentioned technical scheme, the rotation stopping block inlays in the rotation stopping groove, when the relative casing of return lever along the axial slip, can prevent the relative casing circumferential direction of return lever under the effect of the rotation stopping in rotation stopping groove.

The utility model discloses a further set up to: a sealing ring is arranged between the shell and the base.

Through adopting above-mentioned technical scheme, the sealing washer can play waterproof effect to a certain extent.

To sum up, the utility model discloses following beneficial effect has:

1. the return rod is adopted to drive the movable contact on the movable contact piece to move towards the silver contact to realize conduction, and the return rod resets and conducts under the elastic action of the elastic piece to interrupt after the button is released, so that the effects of more convenient use, difficult breakage and longer service life are achieved;

2. the button return pad is adopted, so that the button can automatically move upwards to reset after being released and pressed;

3. adopt the dust cover can play dirt-proof effect, adopt the sealing washer can play waterproof effect.

Drawings

Fig. 1 is a schematic diagram of the overall structural relationship of the embodiment.

Fig. 2 is an exploded structural relationship schematic view of the embodiment, wherein the housing and the hexagonal nut are not shown.

Fig. 3 is a plan view of the housing in the embodiment.

FIG. 4 is a diagram showing the internal structure of the base in the embodiment.

In the figure: 1. a base; 11. a seal ring; 12. a wire; 13. a static contact piece; 14. a silver contact; 15. a sleeve; 2. a housing; 21. a rotation stopping block; 22. a through hole; 3. a restoring rod; 31. a rotation stopping groove; 32. inserting the column; 321. a hook part; 4. a movable contact spring; 41. a movable contact; 42. connecting holes; 5. an extension spring; 6. a return spring; 7. a button; 71. a button return pad; 8. a dust cover; 9. a hexagonal nut.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model provides a button type door external inching switch, as shown in figure 1, figure 2 and figure 4, including base 1 and set up casing 2 on base 1, the lower port cover of casing 2 is in base 1's last port, be provided with sealing washer 11 between base 1's last port and the casing 2 inner wall, sealing washer 11 can play waterproof effect to a certain extent, the cover is equipped with sleeve 15 on base 1, two wires 12 have been drawn forth to sleeve 15 lower extreme, be provided with two static contact 13 in the base 1, static contact 13 is connected with wire 12 electricity, the correspondence is provided with silver contact 14 on the static contact 13.

As shown in fig. 2, 3 and 4, a through hole 22 is axially formed in the center of the housing 2, a return rod 3 is slidably disposed in the through hole 22, the return rod 3 is slidably engaged with the housing 2 along the axial direction of the housing 2, rotation stop blocks 21 are symmetrically disposed on the side walls of the through hole 22 along the axial direction, a rotation stop groove 31 engaged with the rotation stop block 21 is disposed on the outer wall of the return rod 3, the rotation stop block 21 is embedded in the rotation stop groove 31, and the rotation stop block 21 can slide relative to the rotation stop groove 31; the lower end of the return rod 3 is provided with a movable contact piece 4, the movable contact piece 4 is provided with two movable contacts 41, the movable contacts 41 are correspondingly contacted and matched with the silver contacts 14, the movable contact piece 4 is provided with a butterfly-shaped connecting hole 42, the lower end of the return rod 3 is provided with an inserting column 32, the side wall of the inserting column 32 is provided with a hook part 321, the hook part 321 abuts against the lower end face of the movable contact piece 4 after the inserting column 32 penetrates through the connecting hole 42, an extension spring 5 is arranged between the movable contact piece 4 and the return rod 3, and the extension spring 5 enables the movable contact piece 4 to always have a motion trend of abutting against the hook part 321. A return spring 6 is arranged between the movable contact piece 4 and the base 1, one end of the return spring 6 is abutted against the movable contact piece 4, the other end of the return spring 6 is abutted against the base 1, and the return spring 6 enables the movable contact piece 4 to always have a movement trend away from the base 1.

As shown in fig. 1, fig. 2 and fig. 3, the upper end fixedly connected with button 7 of recovery pole 3, the outer wall cover of recovery pole 3 is equipped with button recovery pad 71, the upper end that the button recovered pad 71 offsets with button 7, the lower extreme that the button recovered pad 71 offsets with the casing 2 inner wall, casing 2 is provided with semicircular dust cover 8 outward, the whole cover of dust cover 8 is located button 7 outsidely, dust cover 8 can play the dustproof effect, can avoid the dust to enter into casing 2 from the gap between button 7 and the casing 2 to a certain extent. The outer wall of the shell 2 is provided with an external thread, the shell 2 is connected with a hexagonal nut 9 through the external thread, and the shell 2 is fixed on external equipment through the hexagonal nut 9.

The utility model discloses a basic operating principle does: when the device is used, the static contact piece 13 is electrically connected with an external circuit through the lead 12, the button 7 is pressed into the shell 2, the button 7 pushes the return rod 3 to move into the shell 2, the return rod 3 drives the movable contact piece 4 and the movable contact 41 to move towards the silver contact 14 when moving, the movable contact 41 is abutted against the silver contact 14 to realize conduction, and at the moment, the return spring 6 is compressed; when the push button 7 is released from being pressed, the movable contact 41 moves away from the silver contact 14 by the elastic force of the return spring 6, so that the return rod 3 is reset, and thus the conduction between the movable contact 41 and the fixed contact is interrupted, and the push button 7 is also driven to move upward by the return force of the push button return pad 71, so that the push button 7 is reset. When the return rod 3 slides in the axial direction relative to the housing 2, the return rod 3 is prevented from rotating in the circumferential direction relative to the housing 2 by the rotation stopping action of the rotation stopping groove 31. Therefore, the return rod 3 is adopted to drive the movable contact 41 on the movable contact piece 4 to move towards the silver contact 14 to realize conduction, and the return rod 3 is reset under the elastic action of the return spring 6 after the button 7 is released, so that the conduction is interrupted, and the effects of more convenient use, difficult breakage and longer service life are achieved.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a button type door external inching switch, includes base (1), set up in casing (2) of base (1), its characterized in that: a static contact piece (13) is arranged in the base (1), and a silver contact (14) is arranged on the static contact piece (13);

a restoring rod (3) is arranged in the shell (2), the restoring rod (3) is in sliding fit with the shell (2) along the axial direction of the shell (2), a movable contact (4) is arranged on the restoring rod (3), a movable contact (41) is arranged on the movable contact (4), the movable contact (41) is in contact fit with the silver contact (14), and an elastic piece for driving the movable contact (41) to be far away from the silver contact (14) is arranged in the shell (2);

a button (7) is movably arranged in the shell (2), and the button (7) is fixedly connected with the restoring rod (3).

2. A push button door jog switch according to claim 1 and wherein: the elastic piece is provided with a return spring (6), one end of the return spring (6) is abutted against the movable contact piece (4), and the other end of the return spring (6) is abutted against the base (1).

3. A push button door jog switch according to claim 1 and wherein: connecting hole (42) have been seted up to movable contact spring (4), return pole (3) be provided with connecting hole (42) grafting complex grafting post (32), grafting post (32) lateral wall is provided with colludes portion (321), collude portion (321) with movable contact spring (4) collude and connect the cooperation, movable contact spring (4) with be provided with extension spring (5) between return pole (3), extension spring (5) make movable contact spring (4) have all the time and support against in the motion trend of colluding portion (321).

4. A push button door jog switch according to claim 1 and wherein: a button recovery pad (71) is arranged in the shell (2), one end of the button recovery pad (71) is abutted against the button (7), and the other end of the button recovery pad (71) is abutted against the shell (2).

5. A push button door jog switch according to claim 1 and wherein: the shell (2) is provided with a dust cover (8), and the dust cover (8) is covered outside the button (7).

6. A push button door jog switch according to claim 1 and wherein: the inner wall of the shell (2) is provided with a rotation stopping block (21) along the axial direction of the shell (2), and the outer wall of the return rod (3) is provided with a rotation stopping groove (31) matched with the rotation stopping block (21) in a rotation stopping way.

7. A push button door jog switch according to claim 1 and wherein: a sealing ring (11) is arranged between the shell (2) and the base (1).