A push-pull switch

Abstract

A push-pull switch. It solves the problem that the existing push-pull switch products are relatively thick and the product performance is uncertain. It includes a shell, the shell includes an upper cover and a base, the upper cover and the base cooperate with each other to form a receiving chamber, and also includes: a static contact piece; a moving contact piece, the moving contact piece is provided with a mounting portion and a movable contact arm with elastic swingability; the mounting portion is horizontally mounted on the base, and the movable contact arm is vertically arranged in the receiving chamber; a driving handle, the driving handle includes an operating portion and a driving portion, the upper cover is provided with a guide hole, the operating portion passes through the guide hole and is arranged outside the shell and is guided by the guide hole so that the driving handle and the shell slide and cooperate; the driving portion has a first position when installed and a second position driven by the operating portion to drive the movable contact arm to move. The utility model also has the advantages of simple structure, convenient assembly, reliable operation, and long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical switches, in particular to a push-pull switch. Background Art

[0002] The push-pull switch in the existing market connects or disconnects the moving contact and the static contact of the contact structure by pushing the handle. The movable stroke of the moving contact and the static contact of the contact structure is located in the upper and lower spaces, that is, the moving contact and the static contact are arranged horizontally, and the corresponding moving contact and the static contact are also arranged horizontally. In order to prevent the switch arc between the moving contact and the static contact of the moving contact structure from continuously burning the contacts of the moving contact structure when the power is turned on and off, the movable stroke between the moving contact and the static contact needs to maintain a certain distance, which is reflected in the thickness of the push-pull switch in the product, that is, the overall thickness of the push-pull switch can only be maintained at a certain thickness, generally only 5.5mm or more. For household appliances that need to reduce the thickness, the thickness of the switch prevents it from being further thinned. In addition, the existing moving contact and the static contact are also prone to shaking during installation, and are prone to unreliable contact after transportation. Utility Model Content

[0003] In order to solve the problem that the existing push-pull switch products in the background technology are relatively thick and the product performance is uncertain, the utility model provides a push-pull switch.

[0004] The technical solution of the utility model is: a push-pull switch, including a housing, the housing including an upper cover and a base, the upper cover and the base cooperate with each other to form a containing cavity, and also includes:

[0005] A stationary contact piece is arranged in the accommodating cavity and extends out of the shell, and a stationary contact point is arranged on the stationary contact piece;

[0006] A movable contact piece is arranged in the accommodating cavity and extends out of the housing. The movable contact piece is provided with a mounting portion and an elastically swingable movable contact arm; the movable contact arm is provided with a movable contact that cooperates with the static contact; the mounting portion is horizontally mounted on the base, and the movable contact arm is vertically arranged in the accommodating cavity;

[0007] A driving handle is arranged in the accommodating cavity, and the driving handle includes an operating part and a driving part. A guide hole is provided on the upper cover, and the operating part passes through the guide hole and is arranged outside the shell and is guided by the guide hole so that the driving handle and the shell slide and cooperate; the driving part has a first position when installed and a second position in which the operating part drives the moving contact arm to move.

[0008] As a further improvement of the utility model, a mounting block is provided on the base, at least two positioning columns are provided on the mounting block, and a positioning hole cooperating with the positioning column is provided on the mounting portion.

[0009] As a further improvement of the utility model, a positioning block is provided on the side wall of the mounting block, the mounting portion is bent outward to form a side plate, the side plate is provided with a positioning notch matched with the positioning block, and the movable contact arm is connected to the side plate.

[0010] As a further improvement of the utility model, there are three positioning columns, and different positioning columns cooperate with each other to form a triangle, and the mounting portion is placed on the upper surface of the mounting block.

[0011] As a further improvement of the present invention, the movable contact piece includes a connecting portion connected to the mounting portion, and the connecting portion extends out of the housing and is arranged obliquely downward relative to the mounting portion.

[0012] As a further improvement of the present invention, the static contact piece is vertically arranged, a mounting notch is provided on the static contact piece, a mounting groove is provided on the base, the static contact piece passes through the mounting groove and is clamped with the bottom edge of the base, and a pressure block for limiting the static contact piece is provided on the upper cover.

[0013] As a further improvement of the utility model, a limiting block is provided on the upper cover, a limiting groove is formed at the limiting block, and one end of the static contact piece inserted into the accommodating cavity is arranged in the limiting groove.

[0014] As a further improvement of the utility model, the upper cover and the base are fixed by means of the mutual cooperation of the clamping holes and the clamping blocks, the clamping holes and the clamping blocks are arranged correspondingly and at least two groups are arranged on the side of the shell.

[0015] As a further improvement of the utility model, a support member is provided on the base, a gear slot is provided on the support member, there are two static contact pieces and two moving contact arms, a block is provided on the upper cover that is inserted between the two static contact pieces, the driving handle drives the moving contact arm to form a gear match with the static contact piece through the driving part, and a guide plate is provided on the driving handle, and the guide plate is placed on the upper edge of the base.

[0016] As a further improvement of the present utility model, the driving handle is provided with a support plate that is against the support member, the gear groove is provided with a gear bead, the gear bead is connected to an elastic member, the elastic member is against the driving handle, the elastic member is provided with the driving part outside the elastic member, there are two driving parts and they are respectively used to cooperate with the moving contact arm to achieve gear coordination, the two moving contact arms are arranged to be retracted and the moving contact arm is provided with a bending protrusion that facilitates driving of the driving part.

[0017] The beneficial effect of the utility model is that the installation part is placed horizontally, which is convenient for limiting the movable contact piece and avoiding shaking, so that the product has reliable contact, and the movable contact arm is arranged vertically, which reduces the overall thickness of the product and reduces the volume. The utility model also has the advantages of simple structure, convenient assembly, reliable action, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0019] Attached Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the utility model.

[0020] Attached Figure 3 This is a schematic diagram of the structure of the embodiment of the utility model after removing the upper cover.

[0021] Attached Figure 4 It is a schematic structural diagram of the upper cover of an embodiment of the utility model.

[0022] Attached Figure 5 It is a structural schematic diagram of the base of an embodiment of the utility model.

[0023] Attached Figure 6 It is a schematic structural diagram of a driving handle according to an embodiment of the utility model.

[0024] In the figure, 1, shell; 11, accommodating cavity; 2, upper cover; 21, guide hole; 22, pressure block; 23, limit block; 24, limit groove; 25, clamping hole; 26, stop block; 3, base; 31, mounting block; 32, positioning column; 33, positioning block; 34, mounting groove; 35, clamping block; 36, support member; 37, gear slot; 4, static contact piece; 41, static contact point; 42, mounting notch; 5, moving contact piece; 51, mounting part; 52, moving contact arm; 53, moving contact point; 54, positioning hole; 55, side plate; 56, positioning notch; 57, connecting part; 58, bending protrusion; 6, driving handle; 61, operating part; 62, driving part; 63, guide plate; 64, support plate; 7, gear bead; 8, elastic member. DETAILED DESCRIPTION

[0025] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0026] Depend on Figure 1 Combination Figure 2-6 As shown, a push-pull switch includes a housing 1, wherein the housing 1 includes an upper cover 2 and a base 3, wherein the upper cover 2 and the base 3 cooperate with each other to form a receiving cavity 11, and further includes:

[0027] A stationary contact piece 4 is disposed in the accommodating cavity 11 and extends out of the housing 1, and a stationary contact point 41 is provided on the stationary contact piece;

[0028] The movable contact piece 5 is arranged in the accommodating cavity 11 and extends out of the housing 1. The movable contact piece 5 is provided with a mounting portion 51 and an elastically swingable movable contact arm 52; the movable contact arm 52 is provided with a movable contact 53 that cooperates with the static contact 41; the mounting portion 51 is horizontally mounted on the base 3, and the movable contact arm 52 is vertically arranged in the accommodating cavity 11;

[0029] The driving handle 6 is arranged in the accommodating cavity 11. The driving handle 6 includes an operating part 61 and a driving part 62. The upper cover 2 is provided with a guide hole 21. The operating part 61 passes through the guide hole 21 and is arranged outside the shell 1 and is guided by the guide hole 21 so that the driving handle 6 and the shell 1 slide and cooperate; the driving part 62 has a first position during installation and a second position driven by the operating part 61 to drive the moving contact arm 52 to move. The beneficial effect of the utility model is that the installation part is placed horizontally, which is convenient for limiting the moving contact piece and avoiding shaking, so that the product can contact reliably. The moving contact arm is arranged vertically, which reduces the overall thickness of the product and reduces the volume. The utility model also has the advantages of simple structure, convenient assembly, reliable action, and long service life.

[0030] The base 3 is provided with a mounting block 31, the mounting block 31 is provided with at least two positioning posts 32, and the mounting portion 51 is provided with positioning holes 54 that cooperate with the positioning posts 32. Specifically, there are three positioning posts 32, and different positioning posts cooperate with each other to form a triangle, and the mounting portion 51 is placed on the upper surface of the mounting block 31. Such a structure makes the movable contact piece more stable during installation and not easy to shake, especially the movable contact piece that is changed to a vertical arrangement will not shake horizontally.

[0031] The side wall of the mounting block 31 is provided with a positioning block 33, the mounting portion 51 is bent outward to form a side plate 55, the side plate 55 is provided with a positioning notch 56 adapted to the positioning block 33, and the movable contact arm 52 is connected to the side plate 55. Such a structure further limits the movable contact piece, facilitates installation and positioning, and the movable contact piece will not shake.

[0032] The movable contact piece 5 includes a connecting portion 57 connected to the mounting portion 51, and the connecting portion 57 extends out of the housing 1 and is arranged obliquely downward relative to the mounting portion 51. Such a structure facilitates the installation and fixation of the external wire, and the movable contact piece is not easy to fall off from the positioning column.

[0033] The static contact piece 4 is vertically arranged, and a mounting notch 42 is arranged on the static contact piece 4. The base 3 is provided with a mounting groove 34. The static contact piece 4 passes through the mounting groove 34 and is locked with the bottom edge of the base 3. The upper cover 2 is provided with a pressing block 22 for limiting the static contact piece 4. The arrangement of the pressing block on the upper cover and the mounting groove cooperate with each other to reliably position the static contact piece, and prevent the static contact piece from shaking and affecting the contact performance.

[0034] The upper cover 2 is provided with a limit block 23, and a limit groove 24 is formed at the limit block 23. One end of the static contact piece 4 inserted into the accommodating cavity 11 is arranged in the limit groove 24. Such a structure limits the static contact piece inserted into the accommodating cavity to prevent the static contact piece from shaking and affecting the contact performance.

[0035] The upper cover 2 and the base 3 are fixed by means of the engagement of the clamping holes 25 and the clamping blocks 35, which are arranged correspondingly and at least two groups are arranged on the side of the housing 1. Such a structure makes the upper cover and the base fixed conveniently and reliably with a simple structure.

[0036] The base 3 is provided with a support member 36, the support member 36 is provided with a gear slot 37, the static contact piece 4 and the movable contact arm 52 are both provided with two, the upper cover 2 is provided with a stopper 26 inserted between the two static contact pieces 4, the driving handle 6 drives the movable contact arm 52 to form a gear match with the static contact piece 4 through the driving part 62, the driving handle 6 is provided with a guide plate 63, and the guide plate 63 is placed on the upper edge of the base 3. The setting of the stopper increases the creepage distance between the two static contact pieces, and the setting of the guide plate makes the movement of the driving handle stable and reliable.

[0037] The driving handle 6 is provided with a support plate 64 that abuts against the support member 36, the gear groove 37 is provided with a gear bead 7, the gear bead 7 is connected with an elastic member 8, the elastic member 8 abuts against the driving handle 6, and the elastic member 8 is provided with the driving part 62 outside. There are two driving parts 62, which are respectively used to cooperate with the moving contact arm 52 to achieve gear matching. The two moving contact arms 52 are folded and the moving contact arm 52 is provided with a bending protrusion 58 that facilitates the driving of the driving part 62. Specifically, there are two driving parts, which are respectively provided corresponding to the two moving contact arms, and the driving part drives the moving contact arm to form a gear matching with the static contact piece through the gear groove.

[0038] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0040] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of the utility model patent right.

Claims

1. A push-pull switch, comprising a housing (1), wherein the housing (1) comprises an upper cover (2) and a base (3), wherein the upper cover (2) and the base (3) cooperate with each other to form a receiving cavity (11), characterized in that Also included: A stationary contact piece (4) is disposed in the accommodating cavity (11) and extends out of the housing (1), wherein a stationary contact point (41) is provided on the stationary contact piece; A movable contact piece (5) is arranged in the accommodating cavity (11) and extends out of the housing (1); the movable contact piece (5) is provided with a mounting portion (51) and an elastically swingable movable contact arm (52); the movable contact arm (52) is provided with a movable contact point (53) that cooperates with the static contact point (41); the mounting portion (51) is horizontally mounted on the base (3), and the movable contact arm (52) is vertically arranged in the accommodating cavity (11); A driving handle (6) is disposed in the accommodating cavity (11), the driving handle (6) comprising an operating portion (61) and a driving portion (62); a guide hole (21) is provided on the upper cover (2); the operating portion (61) passes through the guide hole (21) and is provided outside the housing (1) and is guided by the guide hole (21) so that the driving handle (6) and the housing (1) are slidably matched; the driving portion (62) has a first position when installed and a second position in which the operating portion (61) drives the movable contact arm (52) to move.

2. A push-pull switch according to claim 1, characterized in that The base (3) is provided with a mounting block (31), the mounting block (31) is provided with at least two positioning columns (32), and the mounting portion (51) is provided with positioning holes (54) that cooperate with the positioning columns (32).

3. A push-pull switch according to claim 2, characterized in that A positioning block (33) is provided on the side wall of the mounting block (31); the mounting portion (51) is bent outward to form a side plate (55); a positioning notch (56) matching the positioning block (33) is provided on the side plate (55); and the movable contact arm (52) is connected to the side plate (55).

4. A push-pull switch according to claim 2, characterized in that There are three positioning columns (32), and the different positioning columns cooperate with each other to form a triangle. The mounting portion (51) is placed on the upper surface of the mounting block (31).

5. A push-pull switch according to claim 1, characterized in that The movable contact piece (5) comprises a connecting portion (57) connected to the mounting portion (51); the connecting portion (57) extends out of the housing (1) and is arranged obliquely downward relative to the mounting portion (51).

6. A push-pull switch according to claim 1, characterized in that The stationary contact piece (4) is arranged vertically, and a mounting notch (42) is provided on the stationary contact piece (4). A mounting groove (34) is provided on the base (3). The stationary contact piece (4) passes through the mounting groove (34) and is locked with the bottom edge of the base (3). A pressing block (22) for limiting the stationary contact piece (4) is provided on the upper cover (2).

7. A push-pull switch according to claim 1, characterized in that A limiting block (23) is provided on the upper cover (2), a limiting groove (24) is formed at the limiting block (23), and one end of the static contact piece (4) inserted into the accommodating cavity (11) is arranged in the limiting groove (24).

8. A push-pull switch according to claim 1, characterized in that The upper cover (2) and the base (3) are fixed together by means of the engagement of the clamping holes (25) and the clamping blocks (35). The clamping holes (25) and the clamping blocks (35) are arranged correspondingly and at least two groups are arranged on the side surface of the housing (1).

9. A push-pull switch according to claim 1, characterized in that The base (3) is provided with a support member (36), the support member (36) is provided with a gear slot (37), the static contact piece (4) and the movable contact arm (52) are each provided with two, the upper cover (2) is provided with a stopper (26) inserted between the two static contact pieces (4), the driving handle (6) drives the movable contact arm (52) to form a gear match with the static contact piece (4) through a driving part (62), the driving handle (6) is provided with a guide plate (63), and the guide plate (63) is placed on the upper edge of the base (3).

10. A push-pull switch according to claim 9, characterized in that The driving handle (6) is provided with a support plate (64) that abuts against the support member (36); a gear bead (7) is provided in the gear groove (37); an elastic member (8) is connected to the gear bead (7); the elastic member (8) abuts against the driving handle (6); the elastic member (8) is provided with the driving part (62) outside; there are two driving parts (62) and they are respectively used to cooperate with the moving contact arms (52) to achieve gear matching; the two moving contact arms (52) are arranged to be folded together and the moving contact arms (52) are provided with a bending protrusion (58) that facilitates the driving of the driving part (62).

Images