CN201868289U

CN201868289U - Push-type switch

Info

Publication number: CN201868289U
Application number: CN2010206082661U
Authority: CN
Inventors: 赵晖; 朱定华
Original assignee: ZHANGJIAGANG HUAFENG ELECTRICAL ELEMENT CO Ltd
Current assignee: ZHANGJIAGANG HUAFENG ELECTRICAL ELEMENT CO Ltd
Priority date: 2010-11-16
Filing date: 2010-11-16
Publication date: 2011-06-15
Anticipated expiration: 2020-11-16

Abstract

The utility model relates to a push-type switch. The turn-on and the turn-off of the existing push-type switch are usually realized through a set of switching mechanism which consists of a locking hook 8 and a boss 11 which are arranged on one side of a push part 2. The boss is provided with a bayonet. When the switch is turned on, the locking hook is clamped in the bayonet; and when the switch is turned off, the locking hook is separated from the bayonet. Generally, the boss is integrally formed with the push part through one-step injection molding. The situations that the boss is too small, deficient and the like because of insufficient injection molding occur inevitably. Thereby, the switch with the locking hook which is positioned fully depending on the shape accuracy of the boss has the defects that the locking hook cannot be accurately positioned and the quality is unstable. Since a boss 11a and a boss 11b are respectively arranged on the two relative sides of the push part of the push-type switch, the boss on one side can help the locking hook be positioned, the boss on the other side can assist the locking hook to be positioned more accurately and the locking hook is not apt to fall, the locking hook can be positioned more accurately and the switch can be turned on and off more stably. The push-type switch has the advantages that the qualification rate is greatly improved, the service life is obviously prolonged and the practical value is very great.

Description

Pressing switch

Technical field

The utility model relates to the mains switch that is used for on-off circuit, is specifically related to a kind of pressing switch.

Background technology

As depicted in figs. 1 and 2, traditional pressing switch generally includes pedestal (1 '), be slidingly arranged in the support (2 ') on the pedestal (1 '), be arranged on the button (3 ') on the support (2 ') removably, be fixedly installed on the movable contact spring (4 ') on the described support (2 '), fixedly be embedded terminal (7 '), and be positioned between support (2 ') and the pedestal (3 '), be used to be connected the main spring (9 ') of support (2 ') and pedestal (3 ') in described pedestal (3 ') bottom; The lower end of described movable contact spring (4 ') has moving contact (5 '), and the upper end of terminal (7 ') has and the corresponding fixed contact of moving contact (5 ') (6 '); The upper end of movable contact spring (4 ') can be provided with auxiliary spring (10 ') so that auxiliary main spring (9 ') keeps contacting of dynamic and static contact (5 ') and (6 ') when switch closure.

The pressing switch of this tradition is realized the on-off function of mains switch by a cover switching mechanism.Shown in Fig. 3,4,5,6 and 7, support (2 ') has the extension (21 ') that extends along its glide direction, and described switching mechanism comprises the latch hook (8 ') that fixedly is embedded on described pedestal (1 '), be arranged on extension (21 ') side and have the boss (11 ') of bayonet socket (14 '); When switch was in closure state, moving contact (5 ') contacted with fixed contact (6 '), and latch hook (8 ') is stuck in the described bayonet socket (14 '); When switch was in off-state, moving contact (5 ') was separated with fixed contact (6 '), and latch hook (8 ') breaks away from bayonet socket (14 ').

General, through an injection moulding machine-shaping, and the geomery of boss (11 ') is tiny precise and tiny, therefore adds and occurs phenomenons such as injection moulding deficiency man-hour unavoidably with support (2 ') for boss (11 '), and it is small damaged to cause boss (11 ') to occur.On the other hand, this elongate rod shape of latch hook (8 ') also deforms easily.For the pressing switch of tradition, basically be to rely on the bayonet socket form accuracy of boss (11 ') to realize the location of latch hook (8 ') fully, when micro-strain that latch hook (8 ') occurs or boss (11 ') small damaged, latch hook (8 ') can not rely on the profile of boss (11 ') to carry out accurate in locating, make switch closed and disconnected smoothly, it is malfunctioning to show as switch motion.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of improved pressing switch, control stabilization and longer service life are provided.

For solving above technical problem, the utility model is taked following technical scheme:

A kind of pressing switch, comprise pedestal, be slidingly arranged in press section on the described pedestal, be arranged on spring between pedestal and the press section, be fixedly installed on the terminal of base bottom, be connected with on the press section be used for described terminal conduct electricity mutually the contact site connected and be used for described switch disconnect and closure between the switching mechanism that switches mutually, described press section has the extension that extends along its glide direction, and described switching mechanism comprises the latch hook that is arranged on the described pedestal, be arranged on described extension one side and have first boss of bayonet socket; When switch was in closure state, contact site contacted with terminal, and latch hook is stuck in the bayonet socket; When switch was in off-state, contact site and terminal were separated, and latch hook breaks away from bayonet socket; Described switching mechanism also comprises second boss of a side relative with the first boss place side that is arranged on extension, and when switch was in closure state, latch hook tightened mutually with second boss.

Further, this pressing switch also comprises first guide pad and second guide pad of the relative both sides that are arranged on extension, form first passage between first boss and first guide pad, form second channel between second boss and second guide pad, latch hook has first hook portion and second hook portion that stretches into respectively in first passage and the second channel, and this two hook portion can be slided in first, second passage to realize the chucking and the disengaging of the latch hook and first boss, second boss respectively.

Second boss can have bayonet socket and also can not have bayonet socket, as long as when switch closure, can realize and being adjacent to of second hook portion, setting up of second boss mainly is the location of auxiliary first boss, latch hook is not easy to come off from boss when making switch closure, and then realizes the stable control of switch on/off.

The purpose of setting up of guide pad is to form guide channel (being first, second passage) with boss, makes hook portion slip in predetermined track of latch hook also can accurately enter and break away from assigned address, thereby makes the location of latch hook more accurate.

Because the enforcement of above technical scheme, the utility model compared with prior art has following advantage:

The pressing switch of the utility model is owing to all be provided with boss in the relative both sides of press section, can all realize the chucking and the detach procedure of latch hook and boss in the relative both sides of press section, thereby the location that makes latch hook is security insurance more, difficult drop-off, and then make the break-make of switch more stable, longer service life.

Description of drawings

The utility model is described in more detail below in conjunction with accompanying drawing and concrete execution mode:

Fig. 1 is the main TV structure schematic diagram when pressing switch disconnects in the prior art;

Fig. 2 is the right TV structure schematic diagram of the A-A face among Fig. 1-1;

Fig. 3 is the main TV structure schematic diagram during pressing switch connection in the prior art;

Fig. 4 is the front view of the support of pressing switch in the prior art;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the right view of Fig. 4;

Fig. 7 is the latch hook structural representation of pressing switch in the prior art;

Fig. 8 is the main TV structure schematic diagram of the pressing switch of the utility model;

Fig. 9 is the front view of the support of the pressing switch of the utility model;

Figure 10 is the left view of Fig. 9;

Figure 11 is the right view of Fig. 9;

Figure 12 is the latch hook structural representation of the pressing switch of the utility model;

The latch hook hook portion was moved towards figure when Figure 13 was the pressing on-off action of the utility model in first passage;

The latch hook hook portion was moved towards figure when Figure 14 was the pressing on-off action of the utility model in second channel;

Wherein: 1,1 ', pedestal; 2,2 ', support; 3,3 ' button; 4,4 ', movable contact spring; 5,5 ', moving contact; 6,6 ', fixed contact; 7,7 ', terminal; 8,8 ', latch hook; 8a, first hook portion; 8b, second hook portion; 9, spring; 9 ', main spring; 10 ', auxiliary spring; 11 ', boss; 11a, first boss; 11b, second boss; 12a, first guide pad; 12b, second guide pad; 13a, first passage; 13b, second channel; 14,14 ', bayonet socket.

Embodiment

The utility model is described in more detail below in conjunction with specific embodiment, but be not limited to these embodiment.

Embodiment 1

Shown in Fig. 8,9,10,11,12,13 and 14, the pressing switch of present embodiment comprises pedestal 1, be slidingly arranged in support 2 on the pedestal 1, be arranged on button 3 on the support 2 removably, be arranged on spring 9 between pedestal 1 and the support 2, fixedly be embedded the terminal 7 in pedestal 1 bottom, support 2 has the extension 21 that extends along its glide direction, terminal 7 upper ends have fixed contact 6, be set with movable contact spring 4 on the support 2, have on the movable contact spring 46 corresponding with fixed contact, be used for conducting electricity the moving contact of connecting 5 mutually with described terminal 7; Described switch also comprise be used for described switch disconnect and closure between the switching mechanism that switches mutually, described switching mechanism comprises the latch hook 8 that is arranged on the pedestal 1, is arranged on extension 21 1 sides and has first boss 11a of bayonet socket 14 and the second boss 11b of a side relative with the described first boss 11a place side that is arranged on extension 21, and described latch hook 8 has first hook portion 8a that matches with the first boss 11a and the second hook portion 8b that matches with the second boss 11b; When switch was in closure state, moving contact 5 contacted with fixed contact 6, and the first hook portion 8a of latch hook 8 is stuck in the bayonet socket 14 of the first boss 11a, the second hook portion 8b and boss 11b chucking; When switch was in off-state, moving contact 5 was separated with fixed contact 6, and two hook portions of latch hook 8 break away from bayonet socket and boss.

In the present embodiment, described pressing switch also comprises the relative both sides that are arranged on extension 21, the first guide pad 12a and the second guide pad 12b that is used to guide latch hook 8 trends, form first passage 13a between the first boss 11a and the first guide pad 12a, form second channel 13b between the second boss 11b and the second guide pad 12b, the first hook portion 8a and the second hook portion 8b of latch hook 8 stretch into respectively in first passage 13a and the second channel 13b, and can slide in first, second passage 13a, 13b to realize chucking and the disengaging of latch hook 8 and the first boss 11a, the second boss 11b

The mechanism of the pressing switch of present embodiment is as follows: when switch disconnected, moving contact 5 separated with fixed contact 6, and the first hook portion 8a is in the B place of first passage 13a; Pressing button 3 is pressed support 2 and is down moved, and spring 9 pressurizeds tighten, and the first boss 11a also pushes the first hook portion 8a of latch hook 8 downwards, and the hook portion 8a that wins is upwards slided around the first boss 11a along arrow direction among Figure 13; When the first hook portion 8a when continuing to move upward until peak under the continuous extruding of the first boss 11a, release button 3, spring 9 resiliences move upward the boss 11a that wins, the first hook portion 8a falls back to the A place of the bayonet socket 14 of the first boss 11a, this moment, moving contact 5 was in tight contact condition with fixed contact 6, switch closure, power connection; In like manner, the pressing button 3 drives first boss 11a moves downward once more, and release button 3 again, spring 9 resiliences, and the first hook portion 8a will get back to the B place along the direction of arrow among Figure 13, and moving contact 5 separates with fixed contact 6, and switch disconnects.So realize the break-make of switch.

The trend of the second hook portion 8b as shown in figure 14, action principle is identical with the first hook portion 8a, the second hook portion 8b slides in second channel 13b along the direction of arrow among the figure, realize being adjacent to and breaking away from the second boss 12b, the main auxiliary switch break-make that plays a part, make the accurate more and difficult drop-off in location of latch hook 8, the break-make of switch is more stable.

Adopt the pressing switch of present embodiment, the up-to-standard rate of switch significantly improves, and rise appreciably useful life, has great practical value.

More than the utility model has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present utility model and is implemented; can not limit protection range of the present utility model with this; all equivalences of doing according to spirit of the present utility model change or modify, and all should be encompassed in the protection range of the present utility model.

Claims

1. pressing switch, comprise pedestal (1), be slidingly arranged in the press section (2) on the described pedestal (1), be arranged on the spring (9) between described pedestal (1) and described press section (2), be fixedly installed on the terminal (7) of described pedestal (1) bottom, be connected with on the described press section (2) be used for described terminal (7) conduct electricity mutually the contact site (5) connected and be used for described switch disconnect and closure between the switching mechanism that switches mutually, described press section (2) has the extension (21) that extends along its glide direction, described switching mechanism comprises the latch hook (8) that is arranged on the described pedestal (1), be arranged on described extension (21) one sides and have first boss (11a) of bayonet socket (14), when described switch is in closure state, described contact site (5) contacts with described terminal (7), and described latch hook (8) is stuck in the described bayonet socket (14); When described switch is in off-state, described contact site (5) is separated with described terminal (7), described latch hook (8) breaks away from described bayonet socket (14), it is characterized in that: described switching mechanism also comprises second boss (11b) of a side relative with described first boss (11a) place side that is arranged on described extension (21), when described switch was in closure state, described latch hook (8) tightened mutually with described second boss (11b).

2. pressing switch according to claim 1, it is characterized in that: described switch also comprises first guide pad (12a) and second guide pad (12b) of the relative both sides that are arranged on described extension (21), form first passage (13a) between described first boss (11a) and described first guide pad (12a), form second channel (13b) between described second boss (11b) and described second guide pad (12b), described latch hook (8) has first hook portion (8a) and second hook portion (8b) that stretches into respectively in described first passage (13a) and the second channel (13b).