Split type safety switch

Abstract

The utility model relates to the field of electrical elements, in particular to a split type safety switch, which is provided with a plug, a first socket and a second socket, the first socket and the second socket are mutually independent, the surfaces of shells of the first socket and the second socket are provided with jacks communicated with inner cavities of the shells, elastic sheets are arranged in the cavities, one ends of the elastic sheets extend to the inner sides of the jacks, and the other ends of the elastic sheets extend to the inner sides of the jacks. The other end of the shell is fixedly connected with a wiring bolt in the cavity, and the surface of the shell is provided with a wiring hole corresponding to the wiring bolt; the two pins of the plug can be correspondingly inserted into the jacks of the first socket and the second socket respectively and abut against the elastic pieces, and the elastic pieces of the first socket and the second socket can be electrified to form an access when abutting against the pins. The first socket and the second socket can be installed independently, when the switch is used as an elevator main lock switch, simultaneous contact of two contacts is achieved by adjusting the heights of the two sockets, and the problem of electric corrosion caused by non-simultaneous contact of a switch circuit is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical components, and relates to a split type safety switch. BACKGROUND

[0002] At present, in the elevator industry, contact switches are usually used to verify the in-place state of the elevator door and the locking state of the door lock. The contact switches mostly adopt a pin and socket switch structure, which are respectively installed on the related components of two elevator doors to achieve disconnection or connection when the two elevator doors are oppositely opened or closed.

[0003] The existing pin and socket switch style and size are relatively fixed. Due to different trapezoidal door lock structures, the required switch size may also be different. When the pin and socket switch is used as a main lock switch, the plug is inserted into the socket in an arc line. The plug hole and internal contact of the socket in the prior art are mostly designed as flush structure. Therefore, when the switch is inserted, the two pin pins do not simultaneously contact the internal contact of the socket, which causes serious electrical erosion of the later contacted elements. Therefore, the traditional fixed structure switch socket is difficult to meet the special installation requirements of the elevator switch. At the same time, since the two contacts of the traditional switch socket are arranged in one chamber, when the chamber is filled with water, the internal short circuit of the socket is easily caused, which has safety hazards. CONTENT OF THE UTILITY MODEL

[0004] In order to solve or at least partially solve the above technical problems, the present application provides a split type safety switch, comprising:

[0005] A plug has two pins.

[0006] A first socket and a second socket are independent of each other, and the first socket and the second socket respectively have:

[0007] A shell has a plug hole communicating with the internal chamber of the shell, and the internal chamber is provided with a spring sheet, one end of the spring sheet extends to the inside of the plug hole, and the other end is fixedly connected with a wiring bolt in the chamber. The surface of the shell has a wiring hole corresponding to the wiring bolt;

[0008] The two pins of the plug can be respectively inserted into the plug holes of the first socket and the second socket, and abut against the spring sheets. The spring sheets of the first socket and the second socket can be electrified to form a path when abutting against the pins.

[0009] Optionally, a baffle is arranged at a position between the plug hole and the wiring bolt in the internal chamber, a drain hole is arranged at a corner of the shell away from the plug hole, and the baffle extends obliquely towards the drain hole.

[0010] Optionally, the baffle plate comprises a first plate segment and a second plate segment, the first plate segment is arranged on the side of the terminal bolt close to the insertion hole, and the second plate segment is extended from the first plate segment to the drain hole, and the inclination angle of the second plate segment is greater than that of the first plate segment.

[0011] Optionally, the terminal hole comprises a first terminal hole and a second terminal hole, the first terminal hole and the second terminal hole are arranged on the side of the shell away from the insertion hole, and the first terminal hole and the second terminal hole form an included angle.

[0012] Optionally, a clamping groove is arranged in the chamber, the elastic sheet is clamped in the clamping groove and bypasses the clamping groove to the inner side of the insertion hole, and a pre-pressing block is further arranged in the chamber, the pre-pressing block abuts against the elastic sheet in the natural state of the elastic sheet to provide the elastic sheet with initial elastic force for contacting the insertion pin.

[0013] Optionally, a mounting bolt is arranged on the shell and penetrates the shell, and the mounting side of the shell further has a fixing column parallel to the mounting bolt.

[0014] Optionally, the surface of the shell has an avoiding hole coaxially arranged with the terminal bolt.

[0015] Optionally, one end of the elastic sheet has a contact point, and the end of the insertion pin has an arc-shaped contact head, the arc-shaped contact head maintains contact with the contact point through the arc surface of the arc-shaped contact head when the arc-shaped contact head extrudes the contact point.

[0016] Optionally, the edge of the insertion hole has an extension hole extending to both sides of the insertion hole, and the insertion pin can move between the insertion hole and the extension hole when the insertion pin is inserted into the insertion hole.

[0017] Optionally, the area of the contact point is greater than the area of the arc-shaped contact head of the insertion pin, so that the insertion pin maintains contact with the contact point when the insertion pin moves between the insertion hole and the extension hole.

[0018] The split type safety switch provided by the application has a plug and two mutually independent first socket and second socket, the surface of the shell of the first socket and the second socket has a jack hole communicating with the inner chamber of the shell, the inner chamber is provided with an elastic sheet, one end of the elastic sheet extends to the inner side of the jack hole, the other end is fixedly connected with a wiring bolt in the inner chamber, the surface of the shell has a wiring hole corresponding to the wiring bolt; the two pins of the plug can be respectively inserted into the jack holes of the first socket and the second socket and abut against the elastic sheet, the elastic sheet of the first socket and the elastic sheet of the second socket can be electrified to form a passage when abutting against the pin. Since the first socket and the second socket are designed in a split type, the first socket and the second socket can be independently installed, the relative positions of the two can be adjusted, that is, the installation requirements of different elevator switches can be realized by adjusting the positions of the two sockets; when the split type safety switch is used as an elevator main lock switch, the heights of the two sockets are adjusted to realize the simultaneous contact of the two contacts, avoiding the electrical erosion problem caused by the non-simultaneous contact of the switch circuit, and in addition, since the sockets are separated, the problem of short circuit caused by water entering the socket chamber is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application, the related drawings will be briefly introduced below. It can be understood that the drawings described below are only used to illustrate some embodiments of the present application, and those skilled in the art can also obtain many other technical features and connection relationships not mentioned in the text from these drawings.

[0020] Figure 1 It is an appearance schematic view of the split type safety switch of the present application;

[0021] Figure 2 It is an internal structure schematic view of the split type safety switch of the present application;

[0022] Figure 3 It is an internal structure schematic view of the socket of the split type safety switch of the present application;

[0023] Figure 4 It is a top view schematic view of the socket of the split type safety switch of the present application;

[0024] Figure 5 It is a structure schematic view of the split type safety switch of the present application in a rotating connection state;

[0025] Figure 6 It is a use state schematic view of one embodiment of the split type safety switch of the present application.

[0026] Explanation of reference signs:

[0027] 10, plug; 11, pin;

[0028] 21, first socket; 22, second socket;

[0029] 200, housing; 201, insertion hole; 2011, extension hole; 202, drainage hole; 203, first wiring hole; 204, second wiring hole; 205, avoiding hole; 206, clamping groove; 207, pre-pressing block;

[0030] 30, elastic sheet; 31, contact point;

[0031] 40, wiring bolt;

[0032] 50, baffle; 51, first plate segment; 52, second plate segment;

[0033] 60, mounting bolt;

[0034] 70, fixing column. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0036] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship based on the drawings shown, and is only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] The present disclosure will be described below with reference to the accompanying drawings, which show several embodiments of the present disclosure. It should be understood, however, that the present disclosure can be presented in various different ways and is not limited to the embodiments described below; it should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0039] The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings in the embodiments of the present application.

[0040] As shown in Figure 1 , the present embodiment provides a split safety switch, which includes a plug 10 and a socket, the plug 10 has two pins 11 for inserting into the holes of the socket to realize electrical contact.

[0041] As shown in Figure 1 and Figure 2 , in the present embodiment, the socket is a split structure, and the socket is divided into a first socket 21 and a second socket 22 which are independent of each other. The first socket 21 and the second socket 22 can be completely identical structures or symmetrical structures.

[0042] The present embodiment will be described with the first socket 21 and the second socket 22 as symmetrical structures.

[0043] As shown in Figure 3 , the first socket 21 and the second socket 22 each have a shell 200, the shell 200 has a cavity inside, and the surface of the shell 200 has a jack 201 communicating with the cavity inside the shell 200. In the present embodiment, the first socket 21 and the second socket 22 each have one jack 201.

[0044] The cavities of the first socket 21 and the second socket 22 are respectively provided with a spring 30, one end of the spring 30 extends to the inside of the jack 201, and can extend to the vicinity of the inside of the jack 201, so that the pin 11 can contact the spring 30 after being inserted into the jack 201. The other end of the spring 30 is fixedly connected with a terminal screw 40 in the cavity, and the surface of the shell 200 has a terminal hole corresponding to the terminal screw 40, and a wire can be deeply connected with the terminal screw 40 in the shell 200 through the terminal hole.

[0045] As shown in Figure 3 , in one embodiment, the terminal hole includes a first terminal hole 203 and a second terminal hole 204, and the first terminal hole 203 and the second terminal hole 204 are located on the side of the shell 200 away from the jack 201. Generally, the jack 201 is located on the upper surface of the shell 200, and the first terminal hole 203 and the second terminal hole 204 are located on the lower surface of the shell 200. The terminal hole is away from the jack 201, and it is also convenient for wiring.

[0046] In one embodiment, the first wiring hole 203 and the second wiring hole 204 form an angle. Preferably, the first wiring hole 203 and the second wiring hole 204 form a figure-eight shape, and one of them can be selected for wiring according to actual needs, making wiring more convenient.

[0047] In this embodiment, the spring 30 is a metal sheet, or it can be other elastic conductors that can have elastic recovery force after being squeezed by the pin 11.

[0048] like Figure 3 As shown, in one embodiment, a column is provided in the cavity, and the column and the inner wall of the housing 200 form a groove 206. The spring piece 30 is engaged in the groove 206 and passes through the groove 206 to the inner side of the insertion hole 201. A pre-compression block 207 is also provided in the cavity. The pre-compression block 207 abuts against the spring piece 30 in its natural state to provide the spring piece 30 with the initial elastic force to contact the insertion pin 11.

[0049] The natural state of the spring 30 is the state before the spring 30 is squeezed by the pin 11. The pre-compression block 207 can give the spring 30 a certain warning force so that the contact between the spring 30 and the pin 11 is more stable, and prevent phenomena such as switch disconnection or tripping.

[0050] In this embodiment, the two pins 11 of the plug 10 can be inserted into the sockets 201 of the first socket 21 and the second socket 22 respectively, and abut against the spring contacts 30. When the spring contacts 30 of the first socket 21 and the second socket 22 abut against the pins 11, they can be energized to form a circuit. Since the first socket 21 and the second socket 22 are designed as separate units, the first socket 21 and the second socket 22 can be installed independently, and their relative positions can be adjusted. That is, by adjusting the positions of the two sockets, the installation requirements of different elevator switches can be met.

[0051] like Figure 5 As shown, when the split-type safety switch of this embodiment is used as the main lock switch of the elevator, since the plug 10 is not inserted into the socket in a straight line, but is inserted into the socket in a rotating manner, the first socket 21 and the second socket 22 can be set to be high and low respectively. By adjusting the height of the first socket 21 and the second socket 22, the pin 11 of the plug 10 can make contact with the two contacts 31 at the same time, avoiding the problem of electrolytic corrosion caused by the switch circuit not making contact at the same time. In addition, since the sockets are separate, the problem of water entering the socket cavity and causing a short circuit inside the socket is avoided.

[0052] like Figure 2As shown in the drawings, in one embodiment, the chamber is provided with a baffle plate 50 inside the position between the jack 201 and the terminal screw 40, and the shell 200 is provided with a drain hole 202 at the corner of the side away from the jack 201, and the baffle plate 50 extends obliquely to the direction of the drain hole 202. The baffle plate 50 plays a role of isolating the terminal screw 40, preventing the water or dust entering the jack 201 from affecting the connection of the terminal screw 40. The drain hole 202 can drain the water or dust inside the shell 200, ensuring the safety of the switch.

[0053] Specifically, as shown in the drawings, Figure 3 The baffle plate 50 includes a first plate segment 51 and a second plate segment 52, the first plate segment 51 is arranged on the side of the terminal screw 40 close to the jack 201, for protecting the terminal screw 40, and the second plate segment 52 extends from the first plate segment 51 to the drain hole 202, and the oblique angle of the second plate segment 52 is greater than that of the first plate segment 51, playing a role of draining water and dust, preventing the accumulation of water or dust inside the shell 200, and facilitating the treatment of dust.

[0054] As shown in the drawings, Figure 3 The shell 200 is provided with a mounting screw 60 penetrating the shell 200, for fixing and mounting the shell 200 at the corresponding position of the elevator door.

[0055] Further, as shown in the drawings, Figure 4 The mounting side of the shell 200 also has a fixing column 70 parallel to the mounting screw 60. When only one mounting screw 60 is used to mount the shell 200, the shell 200 is prone to rotation. The fixing column 70 is arranged to be engaged with the corresponding position of the elevator door, effectively preventing the rotation of the shell 200, and improving the mounting stability of the shell 200.

[0056] As shown in the drawings, Figure 1 The surface of the shell 200 has an avoiding hole 205 coaxially arranged with the terminal screw 40. The avoiding hole 205 allows the tool to be inserted, facilitating the operation of the terminal screw 40 during wiring.

[0057] As shown in the drawings, Figure 3 One end of the spring sheet 30 has a contact 31, and the end of the pin 11 has an arc-shaped contact head. When the arc-shaped contact head presses the contact 31, the arc surface of the arc-shaped contact head keeps in contact with the contact 31. Since the spring sheet 30 will be deformed or inclined when being pressed, the pin 11 can better contact the contact 31 through the arc-shaped contact head, preventing the switch from being turned off.

[0058] Further, as shown in the drawings, Figure 4As shown, the edge of the socket 201 has an extension hole 2011 extending to both sides of the socket 201, and the pin 11 can move between the socket 201 and the extension hole 2011 when inserted into the socket 201. Since the switch is installed on the elevator, the shaking of the elevator is easy to cause the switch to be turned off, and therefore, the design of the extension hole 2011 provides redundancy for the relative displacement between the plug 10 and the socket, so that the switch can adapt to a certain vibration and improve the practicability of the switch.

[0059] It is worth mentioning that based on the fact that a certain displacement can be maintained between the plug 10 and the socket when they are connected, the area of the contact 31 is larger than the arc-shaped contact area of the pin 11, so that the pin 11 and the contact 31 are always in contact when the pin 11 moves between the socket 201 and the extension hole 2011.

[0060] As shown in the drawings, Figure 6 In one embodiment, the independent arrangement of the first socket 21 and the second socket 22 can also adapt to the case that the lengths of the pins 11 of the plug 10 are inconsistent, or according to the different needs of the elevator, the first socket 21 and the second socket 22 are arranged separately, and the relative positions thereof are adjusted, and pins 11 of different lengths are arranged, so that the plug 10 and the socket can be connected when used in special positions.

[0061] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature can be "below", "under" and "under" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0062] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0063] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A split safety switch, characterized in that, include: The plug (10) has two pins (11). A first socket (21) and a second socket (22) are independent of each other, and the first socket (21) and the second socket (22) respectively have: The housing (200) has a socket (201) on its surface that communicates with the internal cavity of the housing (200). A spring (30) is provided inside the cavity. One end of the spring (30) extends to the inside of the socket (201), and the other end is fixedly connected to a wiring bolt (40) inside the cavity. The surface of the housing (200) has a wiring hole corresponding to the wiring bolt (40). The two pins (11) of the plug (10) can be inserted into the sockets (201) of the first socket (21) and the second socket (22) respectively, and abut against the spring (30). When the spring (30) of the first socket (21) and the spring (30) of the second socket (22) abut against the pins (11), they can be energized to form a circuit.

2. The split safety switch of claim 1, wherein, A baffle (50) is provided inside the chamber between the socket (201) and the wiring bolt (40). A drain hole (202) is provided at the corner of the housing (200) on the side away from the socket (201). The baffle (50) extends obliquely toward the drain hole (202).

3. The split safety switch of claim 2, wherein, The baffle (50) includes a first plate segment (51) and a second plate segment (52). The first plate segment (51) is disposed on the side of the wiring bolt (40) near the socket (201). The second plate segment (52) extends from the first plate segment (51) to the drain hole (202). The inclination angle of the second plate segment (52) is greater than that of the first plate segment (51).

4. The split safety switch according to any one of claims 1-3, characterized in that, The wiring hole includes a first wiring hole (203) and a second wiring hole (204), the first wiring hole (203) and the second wiring hole (204) are located on the side of the housing (200) away from the socket (201), and the first wiring hole (203) and the second wiring hole (204) form an angle.

5. The split safety switch according to any one of claims 1-3, characterized in that, The cavity is provided with a slot (206), the spring piece (30) is engaged in the slot (206) and passes through the slot (206) to the inside of the insertion hole (201). The cavity is also provided with a pre-compression block (207), the pre-compression block (207) abuts against the spring piece (30) in its natural state, so as to provide the spring piece (30) with the initial elastic force to contact the insertion pin (11).

6. The split safety switch according to any one of claims 1-3, characterized in that, The housing (200) is provided with a mounting bolt (60) that penetrates the housing (200), and the mounting side of the housing (200) is also provided with a fixing post (70), which is parallel to the mounting bolt (60).

7. The split safety switch according to any one of claims 1-3, wherein, The housing (200) has a clearance hole (205) on its surface, and the clearance hole (205) is coaxially arranged with the wiring bolt (40).

8. The split safety switch according to any one of claims 1-3, wherein, One end of the elastic sheet (30) has a contact (31), and the end of the pin (11) has an arc-shaped contact head, which keeps in contact with the contact (31) through the arc surface of the arc-shaped contact head when the arc-shaped contact head presses the contact (31).

9. The split safety switch of claim 8, wherein, The edge of the jack (201) has an extension hole (2011) extending to both sides of the jack (201), and the pin (11) can move between the jack (201) and the extension hole (2011) when the pin (11) is inserted into the jack (201).

10. The split safety switch of claim 9, wherein, The area of the contact (31) is larger than the area of the arc-shaped contact head of the pin (11), so that the pin (11) keeps in contact with the contact (31) when the pin (11) moves between the jack (201) and the extension hole (2011).

Images