Push switch

Abstract

The utility model discloses a push switch, which comprises at least two groups of on-off assemblies, each on-off assembly comprises a static contact piece, a movable contact piece, a pressing piece and an elastic piece, and the movable contact piece is fixedly connected with the pressing piece; the shell assembly is provided with assembling cavities in one-to-one correspondence with the on-off assemblies, and the outer ends of the two static contact pieces penetrate through the assembling cavities and are connected with independent circuits respectively; the elastic piece is arranged in the assembling cavity and can elastically deform in the sliding direction of the pressing piece. The two on-off assemblies are connected into the two independent circuits respectively to control on-off of the double circuits, multifunctional cooking household appliances (such as heating and stirring are controlled respectively) can be met, and compared with the prior art, the two on-off assemblies are arranged on the single shell assembly, so that the preparation cost of the shell assembly is reduced, and the production cost is reduced. And the installation work of the shell assembly is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of safety switches, and particularly relates to a push switch. Background Art

[0002] At present, kitchen food processing appliances such as food processors, juicers, grinders, and blenders on the market are all equipped with high-speed rotating mechanisms. If the lid is opened while the rotating mechanism is running, there will be safety risks. To solve the safety risk problems existing during the operation of the product, a safety switch linked to the lid is usually set. When the lid is opened, the safety switch is triggered to complete the power-off work, thereby effectively reducing the possibility of safety problems.

[0003] In the prior art, the push switch has a single set of on-off components, which is difficult to meet more market demands. Content of the Utility Model

[0004] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide a push switch.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A push switch, comprising:

[0007] At least two sets of on-off components, the on-off components include static contact pieces, moving contact pieces, pressing members, and elastic members, and the moving contact piece is fixedly connected to the pressing member;

[0008] A housing assembly, which is provided with assembly cavities corresponding to the on-off components one by one. A notch is opened at the end of the assembly cavity. The pressing member is slidably matched with the notch, and its outer end is exposed outside the housing assembly. The moving contact piece is arranged at the inner end of the pressing member. The inner end of the static contact piece is arranged in the assembly cavity and can be in contact conduction with the moving contact piece. The outer ends of the two static contact pieces both penetrate through the assembly cavity and are respectively connected to independent circuits;

[0009] Wherein, the elastic member is arranged in the assembly cavity and can elastically deform along the sliding direction of the pressing member; when the pressing member slides inward, it can drive the moving contact piece to slide and be in contact conduction with the static contact piece. At this time, the elastic member is compressed, thereby realizing electrical connection; when the elastic member is released, it can drive the pressing member to slide outward and drive the moving contact piece to slide and separate from the static contact piece, thereby realizing electrical disconnection.

[0010] Preferably, it further includes:

[0011] The first slot is recessed inwardly at the inner end of the pressing member. The movable contact piece includes a horizontal section portion that abuts against the top wall of the first slot, and a pair of vertical section portions that abut against the side walls of the first slot. A space for the elastic member to penetrate is formed between the pair of vertical section portions.

[0012] The second slot is opened at the bottom of the assembly cavity. One end of the elastic member is indirectly abutted against the top wall of the first slot through the horizontal section portion of the movable contact piece, and the other end is directly abutted against the bottom wall of the second slot.

[0013] Preferably, it further includes:

[0014] A pair of guiding blocks extend inwardly at the inner end of the pressing member and are respectively in sliding fit with the inner side walls of the assembly cavity.

[0015] Preferably, at the end of the pair of vertical section portions far from the horizontal section portion, contact elastic pieces are extended. The pair of contact elastic pieces are respectively inclined inwardly and can continuously provide an elastic force for keeping contact with the static contact piece.

[0016] Preferably, at the end of the pair of contact elastic pieces far from the vertical section portions, arc-shaped pieces are extended. The pair of arc-shaped pieces respectively face the inner ends of the static contact piece.

[0017] Preferably, at the end of the pair of guiding blocks far from the pressing member, avoidance grooves are opened. The avoidance grooves can avoid the arc-shaped pieces.

[0018] Preferably, it further includes:

[0019] A pair of bosses protrude from the bottom wall of the assembly cavity. The second slot is formed inside. Through holes penetrating the bottom wall of the assembly cavity are respectively provided on the outside. The inner end of the static contact piece is tightly fixed to the outer side wall of the boss, and the outer end is exposed outside the housing assembly through the through hole and is connected to the circuit.

[0020] Preferably, it further includes:

[0021] An assembly jack is recessed in the rear side wall of the assembly cavity. An ear portion adapted to the assembly jack is extended outwardly from the side portion of the static contact piece.

[0022] Preferably, it further includes:

[0023] A side cover is detachably fixed to the front side of the housing assembly and can cover the assembly cavity.

[0024] Preferably, grooves are respectively recessed at the top, bottom, left end and right end of the housing assembly. Clamping blocks are provided on the grooves. Lugs corresponding to the grooves one by one are extended outwardly from the side cover. The lugs are adapted to the grooves, and clamping holes cooperating with the clamping blocks are provided on the lugs.

[0025] The beneficial effects of the present utility model are as follows: By using two sets of on-off components to be respectively connected to two independent circuits, the on-off control of the dual circuits can be achieved, which can meet the requirements of multifunctional cooking appliances (such as separately controlling heating and stirring). Compared with the prior art, the two sets of on-off components are installed on a single housing component, which is beneficial to reducing the manufacturing cost of the housing component and simplifying the installation work of the housing component. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of an embodiment in the present utility model;

[0027] Figure 2 is Figure 1 longitudinal sectional schematic diagram of;

[0028] Figure 3 It is an exploded view of the components of an embodiment in the present utility model.

[0029] As shown in the figure:

[0030] 1 - on-off component, 11 - static contact piece, 111 - ear part, 12 - moving contact piece, 121 - horizontal section part, 122 - vertical section part, 123 - contact elastic piece, 124 - arc piece, 13 - pressing piece, 131 - first slot, 132 - guiding block, 133 - avoiding groove, 14 - elastic piece;

[0031] 2 - housing component, 21 - assembly cavity, 22 - notch, 23 - second slot, 24 - boss, 25 - assembly jack, 26 - side cover, 27 - groove, 271 - clamping block, 28 - tab, 281 - clamping hole. Detailed Embodiment

[0032] The following combines the drawings to specifically clarify the implementation manner of the present utility model. The drawings are only for reference and illustration, and do not constitute a limitation on the patent protection scope of the present utility model.

[0033] Please refer to Figures 1-3 , in this embodiment, a push switch includes:

[0034] Two sets of on-off components 1, the on-off component 1 includes a static contact piece 11, a moving contact piece 12, a pressing piece 13 and an elastic piece 14, and the moving contact piece 12 is fixedly connected to the pressing piece 13;

[0035] The housing assembly 2 is provided with an assembly cavity 21 corresponding one-to-one to the on-off assembly 1. A notch 22 is formed at the end of the assembly cavity 21. The pressing member 13 is slidably engaged with the notch 22, and its outer end is exposed outside the housing assembly 2. The moving contact piece 12 is arranged at the inner end of the pressing member 13. The inner end of the static contact piece 11 is arranged in the assembly cavity 21 and can be in contact conduction with the moving contact piece 12. The outer ends of the two static contact pieces 11 both penetrate through the assembly cavity 21 and are respectively connected to independent circuits.

[0036] Wherein, the elastic member 14 is arranged in the assembly cavity 21 and can elastically deform along the sliding direction of the pressing member 13. When the pressing member 13 slides inwards, it can drive the moving contact piece 12 to slide and be in contact conduction with the static contact piece 11. At this time, the elastic member 14 is compressed, so as to realize electrical connection. When the elastic member 14 is released, it can drive the pressing member 13 to slide outwards and drive the moving contact piece 12 to slide and separate from the static contact piece 11, so as to realize electrical cut-off.

[0037] In this embodiment, taking a mixer with heating function and stirring function as an example, the heating assembly of the mixer is electrically connected to the power supply through the first circuit, and the stirring assembly is electrically connected to the power supply through the second circuit. Two sets of on-off assemblies 1 are respectively provided with a pair of static contact pieces 11. One pair of static contact pieces 11 of one set of on-off assemblies 1 are respectively connected to the two poles of the first circuit, and one pair of static contact pieces 11 of the other set of on-off assemblies 1 are respectively connected to the two poles of the second circuit. The housing assembly 2 is installed on the mixer. When the machine cover is closed, the two sets of pressing members 13 are simultaneously pressed down, driving the moving contact piece 12 to be in contact conduction with the static contact piece 11, thereby realizing the electrical connection of the first circuit and the second circuit. When the machine cover is opened, the elastic member 14 is released and drives the pressing member 13 to reset. At this time, the moving contact piece 12 is separated from the static contact piece 11, thereby realizing the electrical cut-off of the first circuit and the second circuit.

[0038] Preferably, it further includes:

[0039] A first slot 131 is recessed inwards at the inner end of the pressing member 13. The moving contact piece 12 includes a horizontal section 121 abutting against the top wall of the first slot 131 and a pair of vertical sections 122 abutting against the side walls of the first slot 131. A space for the elastic member 14 to penetrate is formed between the pair of vertical sections 122.

[0040] A second slot 23 is formed at the bottom of the assembly cavity 21. One end of the elastic member 14 is indirectly abutted against the top wall of the first slot 131 through the horizontal section 121 of the moving contact piece 12, and the other end is directly abutted against the bottom wall of the second slot 23.

[0041] In this embodiment, a pair of vertical segments 122 are connected to the horizontal segment 121 to form a U-shaped movable contact piece 12. The elastic member 14 is a spring. The top end of the spring abuts against the inner end of the U-shaped movable contact piece 12, and the bottom end abuts against the bottom wall of the second slot 23.

[0042] Preferably, it further includes:

[0043] A pair of guide blocks 132, which extend inwards at the inner end of the pressing member 13 and are respectively in sliding fit with the inner side walls of the assembly cavity 21.

[0044] In this embodiment, a pair of guide blocks 132 are integrally formed at the inner end of the pressing member 13 and are in a U shape. By using the sliding fit of the pair of guide blocks 132 with the inner side walls of the assembly cavity 21, it is ensured that the pressing member 13 can slide in the vertical direction, reducing the situation of poor contact between the movable contact piece 12 and the static contact piece 11, and ensuring that the spring can undergo elastic deformation along its own axis.

[0045] Preferably, at the end of a pair of the vertical segments 122 far from the horizontal segment 121, there are extending contact elastic pieces 123. The pair of contact elastic pieces 123 are respectively inclined inwards and can continuously provide an elastic force for maintaining contact with the static contact piece 11.

[0046] In this embodiment, the pair of contact elastic pieces 123 are respectively inclined inwards by 8-10°. By using the inward elastic force, the stability of the contact conduction between the movable contact piece 12 and the static contact piece 11 is ensured. The movable contact piece 12 is made of a metal elastic piece.

[0047] Preferably, at the end of a pair of the contact elastic pieces 123 far from the vertical segments 122, there are extending arc-shaped pieces 124. The pair of arc-shaped pieces 124 are respectively oriented towards the inner end of the static contact piece 11.

[0048] In this embodiment, by using a pair that are respectively oriented towards the static contact piece 11, the accuracy of the docking between the moving and static pieces and the static contact piece 11 during the pressing process is improved, and the situation of the movable contact piece 12 being inserted into the second slot 23 is reduced.

[0049] Preferably, at the end of a pair of the guide blocks 132 far from the pressing member 13, there are provided avoidance grooves 133. The avoidance grooves 133 can avoid the arc-shaped pieces 124.

[0050] In this embodiment, by using a pair of avoidance grooves 133 to provide a space for the pair of arc-shaped pieces 124 to expand and deform outwards, the overall lateral length of this product can be reduced.

[0051] Preferably, it further includes:

[0052] A pair of bosses 24 are convexly provided on the bottom wall of the assembly cavity 21. The second slot 23 is formed inside. Through holes penetrating the bottom wall of the assembly cavity 21 are respectively provided on the outside. The inner end of the static contact piece 11 is tightly fixed to the outer side wall of the boss 24, and the outer end is exposed outside the housing assembly 2 through the through hole and is connected to the circuit.

[0053] Preferably, it further includes:

[0054] An assembly jack 25 is recessed in the rear side wall of the assembly cavity 21. An ear portion 111 adapted to the assembly jack 25 is provided by extending outward from the side portion of the static contact piece 11.

[0055] Preferably, it further includes:

[0056] A side cover 26 is detachably fixed to the front side of the housing assembly 2 and can cover the assembly cavity 21.

[0057] Preferably, grooves 27 are respectively recessed in the top, bottom, left end and right end of the housing assembly 2. A clamping block 271 is provided on the groove 27. A convex piece 28 corresponding to the groove 27 one by one is provided by extending outward from the side cover 26. The convex piece 28 is adapted to the groove 27. A clamping hole 281 cooperating with the clamping block 271 is provided on the convex piece 28.

[0058] The above-disclosed are only the preferred embodiments of the present invention, and the scope of the patent protection of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A push switch, characterized in that, Comprising: At least two sets of on-off components, the on-off components including static contact pieces, moving contact pieces, pressing members and elastic members, the moving contact pieces being fixedly connected to the pressing members; A housing assembly, provided with assembly cavities corresponding to the on-off components one by one, a notch being provided at the end of the assembly cavity, the pressing member being in sliding fit with the notch and its outer end being exposed outside the housing assembly, the moving contact piece being arranged at the inner end of the pressing member, the inner end of the static contact piece being arranged in the assembly cavity and capable of being in contact conduction with the moving contact piece, the outer ends of the two static contact pieces both penetrating through the assembly cavity and being respectively connected to independent circuits; Wherein, the elastic member is arranged in the assembly cavity and capable of elastically deforming along the sliding direction of the pressing member; when the pressing member slides inwards, it can drive the moving contact piece to slide and be in contact conduction with the static contact piece, at this time the elastic member is compressed, so as to realize electrical connection; when the elastic member is released, it can drive the pressing member to slide outwards and drive the moving contact piece to slide and separate from the static contact piece, so as to realize electrical cut-off.

2. The push switch according to claim 1, wherein, Further comprising: A first slot, recessed inwards at the inner end of the pressing member, the moving contact piece including a horizontal section portion abutted against the top wall of the first slot and a pair of vertical section portions abutted against the side walls of the first slot, a space for the elastic member to penetrate is formed between the pair of vertical section portions; A second slot, provided at the bottom of the assembly cavity, one end of the elastic member being indirectly abutted against the top wall of the first slot through the horizontal section portion of the moving contact piece and the other end being directly abutted against the bottom wall of the second slot.

3. The push switch according to claim 2, characterized in that, Further comprising: A pair of guide blocks, extending inwards at the inner end of the pressing member and respectively in sliding fit with the inner side walls of the assembly cavity.

4. The push switch according to claim 3, wherein, A pair of contact elastic pieces are extended at the ends of the pair of vertical section portions far away from the horizontal section portion, the pair of contact elastic pieces being respectively inclined inwards and capable of continuously providing an elastic force for keeping in contact with the static contact piece.

5. The push switch according to claim 4, characterized in that, A pair of arc-shaped pieces are extended at the ends of the pair of contact elastic pieces far away from the vertical section portions, the pair of arc-shaped pieces being respectively oriented towards the inner ends of the static contact pieces.

6. The push switch according to claim 5, characterized in that, A pair of avoiding grooves are provided at the ends of the pair of guide blocks far away from the pressing member, the avoiding grooves being capable of avoiding the arc-shaped pieces.

7. The push switch according to claim 2, characterized in that, Further comprising: A pair of bosses, protruding from the bottom wall of the assembly cavity, the inner sides forming the second slots, and through holes penetrating through the bottom wall of the assembly cavity being respectively provided on the outer sides, the inner ends of the static contact pieces being closely fixed to the outer side walls of the bosses, and the outer ends being exposed outside the housing assembly through the through holes and connected to circuits.

8. A push switch according to claim 7, characterized in that, Further comprising: An assembly jack, recessed in the rear side wall of the assembly cavity, and ear portions adapted to the assembly jack being extended outwards from the side portions of the static contact piece.

9. The push switch according to claim 1, characterized in that, Further comprising: A side cover, detachably fixed to the front side of the housing assembly and capable of covering the assembly cavity.

10. A push switch according to claim 9, characterized in that, Grooves are respectively recessed in the top, bottom, left end and right end of the housing assembly, snap blocks being provided on the grooves, convex pieces corresponding to the grooves one by one being extended outwards from the side cover, the convex pieces being adapted to the grooves, and snap holes cooperating with the snap blocks being provided on the convex pieces.

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