CN201788857U

CN201788857U - Dustproof button switch

Info

Publication number: CN201788857U
Application number: CN2010200221482U
Authority: CN
Inventors: 田春
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-16
Filing date: 2010-01-16
Publication date: 2011-04-06
Anticipated expiration: 2020-01-16

Abstract

The utility model discloses a dustproof button switch, which comprises a base (1), static contact binding posts (2), static contacts (3), moving contact conductive plates (6), moving contacts (5) and a dustproof cover (4). The dustproof cover (4) is clamped into grooves on two sides of the base (1) and bonded via bonder so as to form a fully sealed cavity capable of being filled with inert gases. The upper ends of the moving contact conductive plates (6) are fixed onto connection plates (10) through insulating fixing blocks (9), the upper end of each connection plate (10) is clamped into a groove of one fixing board (11), the fixing boards (11) are embedded on two sides of the base (1), magnets I (7) and magnets II (8) are installed on the inner sides of the lower ends of the connecting plates (10), a magnet III (15) and a magnet IV (16) are installed on the lower portion of a pusher rod (12), a return spring (13) and a spring support plate (14) are arranged at the upper end of the pusher rod (12). The pusher rod does not contact with the moving contact conductive plates (6), the moving contacts move under pushing of magnetic force of the magnets, and the dustproof button switch has no abrasion and is long in service life.

Description

The Dustproof button switch

Technical field

The utility model relates to a kind of appliance switch, is specifically related to a kind of magnetic force that utilizes and promotes the totally-enclosed dustproof switch that moving contact moves.

Background technology

Dustproof switch on the market is varied at present, also play certain dustproof effect, but the push rod of these dustproof switches is mechanical connection with being connected of moving contact, is used to promote moving contact and moves, and reaches switch outage and the closed function of sending electricity.Dust cap can't reach positive confinement truly, more can not charge into inert gas at annular seal space, realizes definitely preventing dust and avoiding switch to produce spark.

Summary of the invention

In order to address the above problem, the utility model provides a kind of dustproof push switch, and dust cap reaches positive confinement truly, can charge into inert gas.Push rod does not contact with the moving contact conductive plate, leans on the magnetic force promotion moving contact of magnetic patch to move.

The utility model is achieved by the following technical solution: a kind of dustproof push switch comprises: matrix, fixed contact binding post, fixed contact, moving contact conductive plate, moving contact and dust cap; It is characterized in that: described dust cap is a trough-shaped body, and dust cap is installed in the groove of matrix both sides, and with the binding agent bonding, forms the cavity of sealing fully; Many fixed contacts and many moving contacts place the sealing cavity; Described moving contact conductive plate upper end is fixed on the connecting plate by the insulation fixed block; Described connecting plate upper end is installed in the groove of fixed head; Described fixed head is embedded in the both sides of matrix, the lower end installed inside magnetic patch I and the magnetic patch II of connecting plate; Magnetic patch III and magnetic patch IV are installed in described push rod bottom; The push rod upper end is provided with return spring and spring backing plate; Described spring pad integrated circuit board is contained in the groove of matrix upper end.

Described push rod is when nature, and the magnetic patch IV maintains an equal level, faces mutually each other with the magnetic patch II, and the magnetic patch IV is opposite with the polarity of magnetic patch II, under magneticaction, and moving contact and inboard fixed contact adhesive; When pressing lower push-rod, the magnetic patch III maintains an equal level, faces mutually each other with magnetic patch II and magnetic patch I respectively with the magnetic patch IV, and the magnetic patch III is identical with the polarity of magnetic patch II, and the magnetic patch IV is identical with the polarity of magnetic patch I, under magneticaction, and the fixed contact adhesive in the moving contact and the outside.

Described dust cap inner chamber can charge into inert gas.

Described matrix is the half slide structure of left-right symmetric, middle somatotype, and two matrixes of half connect by claw.

In dust cap inboard suitable for reading block is set.

Good effect of the present utility model is:

1, dynamic and static contact places in the dust cap of sealing fully, good dustproof effect.

2, push rod promotes moving contact by magnetic force, and both do not contact fully, no friction loss, long service life.

3, somatotype in the middle of the matrix when the switch damage of a side, is convenient to change, and needn't all scrap, and saves use cost, increases economic efficiency.

4, can charge into inert gas in the dust cap, produce spark between the dynamic and static contact when avoiding big electric current, can be used under the coal mine and chemical enterprise uses as flame-proof switch.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the utility model structural scheme of mechanism.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the left view of Fig. 1.

Among the figure: 1, matrix, 1-1, claw, 2, the fixed contact binding post, 3, fixed contact, 4, dust cap, 4-1, block, 5, moving contact, 6, the moving contact conductive plate, 7, the magnetic patch I, 8, magnetic patch II, 9, the insulation fixed block, 10, connecting plate, 11, fixed head, 12, push rod, 13, return spring, 14, spring backing plate, 15, the magnetic patch III, 16, the magnetic patch IV.

Embodiment

As Fig. 1, Fig. 2, shown in Figure 3: a kind of dustproof push switch comprises: matrix 1, fixed contact binding post 2, fixed contact 3, moving contact conductive plate 6, moving contact 5 and dust cap 4; It is characterized in that: described dust cap 4 is two, and dust cap 4 is installed in the draw-in groove of matrix 1 both sides, and with the binding agent bonding, forms the cavity of sealing fully; Many fixed contacts 3 and many moving contacts 5 place the sealing cavity; Described moving contact conductive plate 6 upper ends are fixed on the connecting plate 10 by insulation fixed block 9; Described connecting plate 10 upper ends are installed in the groove of fixed head 11; Described fixed head 11 is embedded in the both sides of matrix 1, the lower end installed inside magnetic patch I 7 and the magnetic patch II 8 of connecting plate 10; Magnetic patch III 15 and magnetic patch IV 16 are installed in described push rod 12 bottoms; Push rod 12 upper ends are provided with return spring 13 and spring backing plate 14; Described spring backing plate 14 is installed in the groove of matrix 1 upper end.

Described push rod 12 is when nature, and magnetic patch IV 16 maintains an equal level, faces mutually each other with magnetic patch II 8, and magnetic patch IV 16 is opposite with the polarity of magnetic patch II 8, under magneticaction, and moving contact 5 and inboard fixed contact 3 adhesives; When push rod 12 is pressed, magnetic patch III 15 maintains an equal level, faces mutually each other with magnetic patch II 8 and magnetic patch I 7 respectively with magnetic patch IV 16, and magnetic patch III 15 is identical with the polarity of magnetic patch II 8, and magnetic patch IV 16 is identical with the polarity of magnetic patch I 7, under magneticaction, fixed contact 3 adhesives in the moving contact 5 and the outside.

Described dust cap 4 inner chambers can charge into inert gas, produce spark between the dynamic and static contact when avoiding big electric current, can be used under the coal mine and chemical enterprise uses as flame-proof switch.

Described matrix 1 is the half slide structure of left-right symmetric, middle somatotype, and two matrixes of half connect by claw 1-1.When the switch damage of a side, be convenient to change, needn't all scrap, save use cost, increase economic efficiency.

In dust cap 4 inboards suitable for reading block 4-1 is set, its effect be avoid connecting plate 10 when rotating with fixed head 11 disengagings.

During use, push rod 12 is not subjected under the external force effect nature, under the effect of return spring 13, push rod 12 is in upper, and magnetic patch II 8 maintains an equal level with magnetic patch IV 16, both polarity is opposite, there is a natural attraction between the sexes, and pulling moving contact conductive plate 6 moves to right, and moving contact 5 contacts with the fixed contact 3 of inboard, inboard fixed contact 3 turning circuits, outside moving contact 3 is open circuit.

When pressing lower push-rod 12, magnetic patch III 15 and magnetic patch IV 16 move down, when maintaining an equal level with magnetic patch II, I 8,7, because it is identical to face magnetic patch polarity mutually, the same sex is repelled each other, and promotes moving contact conductive plate 6 and moves to left, and moving contact 5 contacts with the fixed contact 3 in the outside, outside fixed contact 3 turning circuits, inboard moving contact 3 is open circuit.

Produce spark for fear of the contact, can in dust cap 4, charge into inert gas, can be used for reaching under the coal mine chemical enterprise and use as flame-proof switch.

Claims

1. a dustproof push switch comprises: matrix (1), fixed contact binding post (2), fixed contact (3), moving contact conductive plate (6), moving contact (5) and dust cap (4); It is characterized in that: described dust cap (4) is trough-shaped body, and dust cap (4) is installed in the groove of matrix (1) both sides, and with the binding agent bonding, forms the cavity of sealing fully; Many fixed contacts (3) and many moving contacts (5) place the sealing cavity; Described moving contact conductive plate (6) upper end is fixed on the connecting plate (10) by insulation fixed block (9); Described connecting plate (10) upper end is installed in the groove of fixed head (11); Described fixed head (11) is embedded in the both sides of matrix (1), the lower end installed inside magnetic patch I (7) of connecting plate (10) and magnetic patch II (8); Magnetic patch III (15) and magnetic patch IV (16) are installed in described push rod (12) bottom; Push rod (12) upper end is provided with return spring (13) and spring backing plate (14); Described spring backing plate (14) is installed in the groove of matrix (1) upper end.

2. dustproof push switch according to claim 1, it is characterized in that: described push rod (12) is when nature, magnetic patch IV (16) maintains an equal level, faces mutually each other with magnetic patch II (8), magnetic patch IV (16) is opposite with the polarity of magnetic patch II (8), under magneticaction, moving contact (5) and inboard fixed contact (3) adhesive; When pressing lower push-rod (12), magnetic patch III (15) maintains an equal level, faces mutually each other with magnetic patch II (8) and magnetic patch I (7) respectively with magnetic patch IV (16), magnetic patch III (15) is identical with the polarity of magnetic patch II (8), magnetic patch IV (16) is identical with the polarity of magnetic patch I (7), under magneticaction, fixed contact (3) adhesive in the moving contact (5) and the outside.

3. dustproof push switch according to claim 1 is characterized in that: described dust cap (4) inner chamber can charge into inert gas.

4. dustproof push switch according to claim 1 is characterized in that: described matrix (1) is the half slide structure of left-right symmetric, middle somatotype, and two matrixes of half connect by claw (1-1).

5. dustproof push switch according to claim 1 is characterized in that: in dust cap (4) inboard suitable for reading block (4-1) is set.