Interlocking structure of reversible contactor

Abstract

An interlocking structure of a reversible contactor comprises two contactors and an interlocking mechanism, the two contactors are respectively provided with a linkage mechanism, the linkage mechanism comprises a linkage piece, the interlocking mechanism comprises a support and two interlocking pieces arranged on the support in a sliding mode, and a locking piece is arranged between the two interlocking pieces. The interlocking piece is provided with an interlocking groove, the linkage piece is provided with a linkage part extending out of the contactors, and the interlocking mechanism can be inserted between the two contactors in a direction parallel to the movement direction of the linkage piece, so that the linkage part of the linkage piece is aligned with the interlocking groove of the corresponding interlocking piece, and the interlocking mechanism can move in the direction perpendicular to the movement direction of the linkage piece. When one contactor is switched on, the linkage part of the linkage piece is sleeved with the interlocking groove, the interlocking piece is connected with the linkage piece, and when one contactor is switched on, the linkage piece drives the corresponding interlocking piece to move, so that the interlocking piece pushes the locking piece to stop the movement of the other interlocking piece, the contact support of the other contactor is locked, and the two contactors are prevented from being switched on at the same time.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to an interlocking structure for a reversible contactor. Background Art

[0002] A reversible contactor is an electrical device consisting of two standard contactors and a mechanical interlocking module. It is typically used to control the forward and reverse operation of motors, reverse braking, inching, star-delta starting, and other applications. The mechanical interlocking module is used to achieve interlocking between the contactors. When one contactor operates, it locks the other contactor, preventing the other contactor from operating and thus preventing short circuits caused by both contactors closing simultaneously.

[0003] In existing technology, when installing a mechanical interlock, the first contactor needs to be installed and fixed on the base plate first, then the mechanical interlock is installed onto that contactor, and then the second contactor is installed onto the mechanical interlock to complete the installation process. When the mechanical interlock is damaged and needs to be disassembled and replaced, one contactor must first be removed from the base plate, and then the mechanical interlock is removed from the other contactor. The disadvantages of this disassembly and assembly method are that installing a larger and heavier contactor onto a smaller and lighter mechanical interlock is time-consuming and labor-intensive; moreover, disassembling and replacing the mechanical interlock requires disassembling the contactor, which is extremely inconvenient.

[0004] Although some existing mechanical interlocking mechanisms can be installed and disassembled without removing the contactor, they still suffer from difficulties in installation and disassembly, as well as structural complexity. Utility Model Content

[0005] The purpose of this invention is to overcome at least one defect of the prior art and provide an interlocking structure for a reversible contactor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An interlocking structure for a reversible contactor includes two contactors and an interlocking mechanism. Each of the two contactors has a linkage mechanism. When one contactor is closed, the linkage mechanism drives the interlocking mechanism to lock the other contactor in a state where it cannot be closed. The linkage mechanism includes a linkage member that supports linkage with the contacts. The interlocking mechanism includes a bracket and two interlocking members slidably mounted on the bracket. A locking member is provided between the two interlocking members. Each interlocking member has an interlocking groove perpendicular to the movement direction of the linkage member. Each linkage member has a linkage portion extending outside the contactor. The interlocking mechanism can be inserted between the two contactors parallel to the movement direction of the linkage member, aligning the linkage portion of the linkage member with the interlocking groove of the corresponding interlocking member. The interlocking mechanism can also move perpendicular to the movement direction of the linkage member, fitting the interlocking groove onto the linkage portion of the corresponding linkage member, connecting the interlocking member to the linkage member. When one contactor is closed, the linkage member drives the corresponding interlocking member to move, causing the interlocking member to push the locking member to block the movement of the other interlocking member, thus locking the contacts of the other contactor and preventing both contactors from closing simultaneously.

[0008] Preferably, the contactor housing is provided with a first guide groove parallel to the moving direction of the linkage member and a second guide groove perpendicular to the moving direction of the linkage member. One end of the second guide groove is connected to the first guide groove. The bracket of the interlocking mechanism is provided with a guide block for slidingly engaging with the first and second guide grooves. When the guide block slides in the first guide groove, the linkage part of the interlocking member and the linkage member is misaligned. When the guide block slides in the second guide groove, the linkage part slides into or out of the interlocking groove.

[0009] Preferably, the end of the second guide groove away from the first guide groove is provided with a limiting structure, and the guide block can slide to the end of the second guide groove provided with the limiting structure and be limited by the limiting structure.

[0010] Preferably, the guide block includes an elastic plate and a claw disposed on the elastic plate. The limiting structure is a protruding boss. The claw can slide in the first guide groove and the second guide groove, and can engage with the side of the limiting structure away from the first guide groove to form a limiting fit.

[0011] Preferably, the limiting structure has a disassembly groove on the side away from the first guide groove, and the disassembly groove extends to the top of the housing.

[0012] Preferably, the outer casing is provided with two sets of first guide grooves and second guide grooves, and the interlocking mechanism is provided with two guide blocks for each contactor.

[0013] Preferably, the linkage component is disposed inside the housing of the contactor and is supported and connected to the contact. The linkage component is a linkage shaft. The housing is provided with a linkage hole. One end of the linkage shaft passes through the linkage hole as a linkage part and protrudes from the side of the housing.

[0014] Preferably, the outer casing has a first limiting boss and a second limiting boss on its side. The side of the first limiting boss has a first limiting surface that is parallel to the first guide groove. The side of the second limiting boss has a second limiting surface that is parallel to the second guide groove. The first limiting surface and the second limiting surface are perpendicular to each other. The first limiting surface and the second limiting surface are used to limit the bracket of the interlocking mechanism from two vertical directions respectively.

[0015] Preferably, both sides of the bracket are provided with sliding grooves, and the two interlocking members are slidably disposed in the sliding grooves respectively. The sliding grooves are used to restrict the interlocking members to move only in the direction of movement of the linkage member. The sliding grooves are provided with locking grooves that communicate with the other sliding groove. The locking member is linearly slidably disposed in the locking groove. The interlocking member is provided with an inclined interlocking surface on the side near the other interlocking member. When the corresponding contactor is closed, the interlocking member pushes the locking member through the interlocking surface, so that the locking member slides along the locking groove and extends into the other sliding groove, which is used to limit the interlocking surface of the other interlocking member and prevent the other interlocking member from moving.

[0016] Preferably, the interlocking component includes an interlocking part with an interlocking groove, and a front guide part and a rear guide part disposed opposite to each other on both sides of the interlocking part. The two ends of the sliding groove correspond to the front guide part and the rear guide part, respectively. The end of the sliding groove corresponding to the front guide part is provided with two opposite front guide grooves, and the two sides of the front guide part are respectively inserted into the two front guide grooves for sliding engagement. The end of the sliding groove corresponding to the rear guide part is provided with two opposite rear guide grooves, and the two sides of the rear guide part are respectively inserted into the two rear guide grooves for sliding engagement.

[0017] Preferably, the bracket and the interlocking component are connected by a spring.

[0018] Preferably, the slide groove is provided with a first spring shaft, the front guide portion is provided with a second spring shaft, and the spring is connected between the first spring shaft and the second spring shaft. The spring is used to drive the linkage to slide forward in the guide groove.

[0019] Preferably, the slide groove has two opposing guide bosses at one end corresponding to the front guide portion, the first spring shaft is disposed between the two guide bosses, the two guide bosses are respectively provided with the front guide groove on their sides that are close to each other, the two guide bosses are respectively provided with a first blocking surface at one end that is close to the rear guide groove, the interlocking part is provided with a second blocking surface at one end that is connected to the front guide portion, and the linkage is driven by the spring to drive the second blocking surface to contact the first blocking surface.

[0020] Preferably, the side of the interlocking part near the other interlocking member is recessed to form a relief groove, and the interlocking surface constitutes the groove wall of the relief groove.

[0021] Preferably, the ends of the two opposite groove walls of the interlocking groove are provided with inclined transition surfaces, which are used to cooperate with the linkage component.

[0022] The interlocking structure of the reversible contactor of this utility model only requires moving the interlocking mechanism twice in sequence along the direction parallel and perpendicular to the moving direction of the linkage component during assembly. The linkage component usually moves along the height direction of the contactor along the contact support. That is, during assembly, the interlocking mechanism is first inserted between the two contactors along the height direction of the contactor so that the interlocking slot of the linkage component and the corresponding interlocking component are at the same height. Then, the interlocking mechanism is moved a certain distance along the width direction of the contactor so that the interlocking slot is fitted onto the corresponding linkage component. While avoiding disassembly of the contactor, the difficulty of installation and disassembly of the interlocking mechanism can be reduced, and quick installation and disassembly can be achieved.

[0023] In addition, the guide block can slide to one end of the second guide groove where the limiting structure is provided and limit the limiting structure, fixing the interlocking mechanism and the linkage mechanism, so that the first guide groove and the second guide groove can also serve as guides for the installation of the interlocking mechanism.

[0024] In addition, the bracket and the linkage are connected by a spring, which is used to drive the linkage to slide forward in the guide groove and accelerate the reset of the linkage. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the interlocking structure of the reversible contactor of this utility model;

[0026] Figure 2 This is a cross-sectional view of the interlocking structure of the reversible contactor of this utility model when both contactors are open.

[0027] Figure 3 This is a cross-sectional view of the interlocking structure of the reversible contactor of this utility model when the left contactor is closed;

[0028] Figure 4 This is an assembly diagram of the interlocking mechanism and the linkage mechanism of this utility model;

[0029] Figure 5 This is a schematic diagram of the linkage mechanism of this utility model;

[0030] Figure 6 This is a structural schematic diagram of the interlocking mechanism of this utility model;

[0031] Figure 7 This is an assembly diagram of the new interlocking mechanism.

[0032] In the picture:

[0033] 1. Base plate

[0034] 2. Interlocking mechanism

[0035] 3 contactors

[0036] 4 springs

[0037] 21 brackets

[0038] 22 Interlocking components

[0039] 23 Locking components

[0040] 24 guide blocks

[0041] 25 Slide

[0042] 31 linkage components

[0043] 32 First guide groove

[0044] 33 Second guide groove

[0045] 34 Limiting Structure

[0046] 35. Outer shell

[0047] 36 linkage holes

[0048] 37 Disassembly slot

[0049] 41 First Spring Shaft

[0050] 42 Second Spring Shaft

[0051] 211 First limiting edge

[0052] 212 Second limiting edge

[0053] 220 Interlocking slot

[0054] 221 Interlocking Department

[0055] 222 Forward Guide Section

[0056] 223 Rear Guide Section

[0057] 224 Interlocking surfaces

[0058] 225 Second blocking surface

[0059] 226 clearance slot

[0060] 227 Transition Surface

[0061] 228 clearance hole

[0062] 241 Flexible Plate

[0063] 242 chucks

[0064] 252 Front guide groove

[0065] 253 Rear Guide Groove

[0066] 254 Locking Slots

[0067] 255 guide boss

[0068] 256 First blocking surface

[0069] 311 Contact Support

[0070] 381 First limiting boss

[0071] 382 First limiting surface

[0072] 391 Second limiting boss

[0073] 392 Second limiting surface DETAILED DESCRIPTION

[0074] The following embodiments, in conjunction with the accompanying drawings, further illustrate specific implementations of the interlocking structure of the reversible contactor of this utility model. The interlocking structure of the reversible contactor of this utility model is not limited to the descriptions in the following embodiments.

[0075] like Figure 1 As shown, the interlocking structure of the reversible contactor in this embodiment includes a base plate 1 and two contactors 3 arranged side by side on the base plate 1. There is a space between the two contactors 3 for installing the interlocking mechanism 2. The two contactors 3 each include an electromagnetic mechanism, a contact support 311, a stationary contact, and a moving contact (not shown in the figure) mounted on the contact support 311. The contact support 311 is used to drive the moving contact to contact and separate from the stationary contact, thereby connecting and disconnecting the circuit controlled by the contactor 3. When the moving contact of one of the contactors 3 contacts the stationary contact, the interlocking mechanism 2 is used to lock the contact support 311 of the other contactor 3 to prevent the two contactors 3 from simultaneously connecting the controlled circuit.

[0076] like Figure 1-4 As shown, an improvement in this embodiment is that the two contactors 3 are each provided with a linkage mechanism. The linkage mechanism includes a linkage member 31 that is linked to the contact support 311. The linkage member 31 extends between the two contactors 3 and cooperates with the interlocking mechanism 2. The interlocking mechanism 2 includes a bracket 21 and two interlocking members 22 that are slidably disposed on the bracket 21. A locking member 23 is provided between the two interlocking members 22. The interlocking member 22 has an interlocking groove 220 perpendicular to the movement direction of the linkage member 31. The linkage member 31 has a linkage portion extending outside the contactor 3. The interlocking mechanism 2 can be parallel to the movement direction of the linkage member 31. Figure 4Insert the interlocking mechanism 2 between the two contactors 3 in the X direction, aligning the linkage part of the linkage 31 with the interlocking groove 220 of the corresponding interlocking part 22, and enabling the interlocking mechanism 2 to move in a direction perpendicular to the movement of the linkage 31, that is, in a direction parallel to the length of the interlocking groove 220 (Y direction in the figure), so that the interlocking groove 220 is fitted onto the linkage part of the corresponding linkage 31, connecting the interlocking part 22 with the linkage 31. Thus, when one of the contactors 3 closes, the linkage 31 drives the corresponding interlocking part 22 to move, causing the interlocking part 22 to push the locking part 23 to block the movement of the other interlocking part 22, locking the contact support 311 of the other contactor 3, and preventing the two contactors 3 from closing at the same time.

[0077] In this embodiment, the interlocking structure of the reversible contactor only requires the interlocking mechanism 2 to be moved twice in sequence along the direction parallel and perpendicular to the moving direction of the linkage 31 during assembly. The linkage 31 usually moves along the height direction of the contactor 3 with the contact support 311. That is, during assembly, the interlocking mechanism 2 is first inserted between the two contactors 3 along the height direction of the contactor 3, so that the linkage 31 and the interlocking groove 220 of the corresponding interlocking member 22 are at the same height. Then, the interlocking mechanism 2 is moved a certain distance along the width direction of the contactor 3, and the interlocking groove 220 is fitted onto the corresponding linkage 31. While avoiding disassembly of the contactor 3, the difficulty of installing and disassembling the interlocking mechanism 2 can be reduced, and quick installation and disassembly can be achieved.

[0078] like Figure 4 As shown, the linkage 31 is disposed inside the housing 35 of the contactor 3, and is directly or indirectly connected to the contact support 311, and the linkage 31 extends out of the housing 35. The interlocking member 22 is provided with an interlocking groove 220, and the interlocking mechanism 2 is pressed... Figure 4 Install it in the X direction between the two housings at 35 degrees, then press... Figure 4 When the linkage 31 is moved in the Y direction and installed into the interlocking groove 220, the linkage 31 and the interlocking component 22 are connected.

[0079] like Figure 2-3 As shown, the locking element 23 is linearly slidably disposed within the bracket 21. When one of the contactors 3 closes, the linkage 31 drives the corresponding interlocking element 22 to move, causing the interlocking element 22 to push the locking element 23 to block the movement of the other interlocking element 22, thus locking the contact support 311 of the other contactor 3 and preventing both contactors 3 from closing simultaneously. It should be noted that the figure only schematically shows the housing 35 and linkage 31 of the contactor 3, and does not show the electromagnetic mechanism, contact support 311, etc. of the contactor 3.

[0080] like Figure 4As shown, the contactor 3 is provided with a first guide groove 32 parallel to the moving direction of the linkage 31 and a second guide groove 33 perpendicular to the moving direction of the linkage 31. One end of the second guide groove 33 is connected to the first guide groove 32, and the end of the second guide groove 33 away from the first guide groove 32 is provided with a limiting structure 34. The bracket 21 of the interlocking mechanism 2 is provided with a guide block 24 for slidingly engaging with the first guide groove 32 and the second guide groove 33. After the interlocking mechanism 2 is installed in place, the guide block 24 can slide to the end of the second guide groove 33 where the limiting structure 34 is provided and limit it with the limiting structure 34, fixing the interlocking mechanism 2 and the linkage 31 of the linkage mechanism, so that the first guide groove 32 and the second guide groove 33 can also serve as guides for the installation of the interlocking mechanism 2. When the guide block 24 slides in the first guide groove 32, the linkage part of the interlocking member 22 and the linkage member 31 are misaligned. When the guide block 24 slides in the second guide groove 33, the linkage part of the linkage member 31 slides in the interlocking groove 220, causing the linkage part of the linkage member 31 to slide into or out of the interlocking groove 220.

[0081] In this embodiment, the contactor 3 is provided with two sets of first guide grooves 32 and second guide grooves 33. The interlocking mechanism 2 is provided with two guide blocks 24 for each contactor 3. At least one set of second guide grooves 33 is provided with a limiting structure 34. In this embodiment, one set of first guide grooves 32 and second guide grooves 33 is not provided with a limiting structure 34, while the other set of second guide grooves 33 is provided with a limiting structure 34 at the end away from the first guide groove 32. The corresponding guide block 24 includes an elastic plate and a claw 242 provided on the elastic plate 241. The limiting structure 34 is a protruding boss. The claw 242 can not only slide in the first guide grooves 32 and second guide grooves 33, but also can be easily locked onto the side of the limiting structure 34 away from the first guide groove 32 to form a limiting engagement. It can also be easily disassembled by using other tools to pry open the claw 242.

[0082] Specifically, such as Figure 2 , 5 As shown, in this embodiment, the contact support 311 is linearly slidable within the housing 35 of the contactor 3 along the X direction. The linkage 31 is disposed within the housing 35 and connected to the contact support 311. The linkage 31 is a linkage shaft, one end of which is perpendicularly inserted into the contact support 311 along the Y direction. The housing 35 has a linkage hole 36. The other end of the linkage shaft, as a linkage part, passes through the linkage hole 36 and protrudes from the side of the housing 35, extending into the interlocking groove 220 of the interlocking member 22 to cooperate with the interlocking member 22. Of course, in other embodiments, the linkage mechanism may also include other components, with the linkage 31 indirectly connected to the contact support 311, or the linkage 31 and the contact support 311 being integrally formed.

[0083] The outer casing 35 has a first guide groove 32, a second guide groove 33, and a limiting structure 34 on its side, as well as a disassembly groove 37 corresponding to the limiting structure 34. The disassembly groove 37 is located on the side of the limiting structure 34 away from the first guide groove 32 and extends to the top of the contactor 3. The tool can be disassembled by extending to the side of the guide block 24 and easily moving the guide block 24 to separate it from the limiting structure 34. A mounting base is provided at the bottom of the outer casing 35. The mounting base has screw holes and is mounted on the bottom plate 1 by screws.

[0084] Furthermore, the outer casing 35 is provided with a first limiting boss 381 and a second limiting boss 391 on its side. The side of the first limiting boss 381 is provided with a first limiting surface 382 parallel to the first guide groove 32, and the side of the second limiting boss 391 is provided with a second limiting surface 392 parallel to the second guide groove 33. The first limiting surface 382 and the second limiting surface 392 are arranged perpendicularly. The first limiting surface 382 and the second limiting surface 392 are used to limit the bracket 21 of the interlocking mechanism 2 from two vertical directions. The bottom and side of the bracket 21 are provided with a first limiting edge 211 and a second limiting edge 212, respectively. The bracket 21 can be reliably limited by the first limiting boss 381 and the second limiting boss 391.

[0085] like Figure 6-7 As shown, the bracket 21 has sliding grooves 25 on both sides. The two interlocking members 22 are slidably disposed in the two sliding grooves 25 on both sides. The sliding grooves 25 are used to restrict the interlocking members 22 to move only along the moving direction of the linkage member 31. The interlocking member 22 has an interlocking groove 220. The length direction of the interlocking groove 220 is perpendicular to the sliding direction of the interlocking member 22. The bracket 21 has a locking groove 254 connecting the two sliding grooves 25. The locking member 23 is linearly slidably disposed in the locking groove 254. When one contactor 3 closes, it drives the linkage member 31 and the interlocking member 22 to slide and push the locking member 23, so that the locking member 23 slides along the locking groove 254 and extends into the other sliding groove 25, which is used to block the movement of the other interlocking member 22, so that the two contactors 3 cannot close at the same time.

[0086] Specifically, the interlocking component 22 includes an interlocking portion 221 with an interlocking groove 220, and a front guide portion 222 and a rear guide portion 223 oppositely disposed on both sides of the interlocking portion 221. The two ends of the sliding groove 25 correspond to the front guide portion 222 and the rear guide portion 223 respectively. The sliding groove 25 has two opposing front guide grooves 252 at one end corresponding to the front guide portion 222, and the two sides of the front guide portion 222 are slidably inserted into the two front guide grooves 252. The sliding groove 25 also has two opposing rear guide grooves 253 at one end corresponding to the rear guide portion 223, and the two sides of the rear guide portion 223 are... Do not insert into the two rear guide grooves 253 for sliding engagement. The middle part of the slide groove 25 is provided with a locking groove 254 that communicates with another slide groove 25. The locking member 23 is linearly slidably disposed in the locking groove 254. The interlocking part 221 of the interlocking member 22 is provided with an inclined interlocking surface 224 on the side near the other interlocking member 22. When the corresponding contactor 3 is closed, the interlocking member 22 pushes the locking member 23, and pushes the locking member 23 through the interlocking surface 224, so that the locking member 23 slides along the locking groove 254 and extends into the other slide groove 25, which is used to limit the interlocking surface 224 of the other interlocking member 22 to prevent the other interlocking member 22 from moving.

[0087] Furthermore, the bracket 21 and the interlocking member 22 are connected by a spring 4. A first spring shaft 41 is provided in the slide groove 25, and a second spring shaft 42 is provided in the front guide portion 222 of the interlocking member 22. The spring 4 connects the first spring shaft 41 and the second spring shaft 42, and is used to drive the interlocking member 22 to slide forward in the guide groove 252, accelerating the reset of the interlocking member 22 and the linkage member 31. Of course, the spring 4 can also be connected in other ways, such as directly hanging in the through holes on the bracket 21 and the interlocking member 22, all of which fall within the protection scope of this utility model.

[0088] Furthermore, the slide groove 25 is provided with two opposing guide bosses 255 at one end corresponding to the front guide part 222. The first spring shaft 41 is disposed between the two guide bosses 255. The two guide bosses 255 are respectively provided with the front guide groove 252 on their sides that are close to each other. The two guide bosses 255 are respectively provided with a first blocking surface 256 at one end that is close to the rear guide groove 253. The interlocking part 221 is provided with a second blocking surface 225 at one end that is connected to the front guide part 222. The linkage 31 is driven by the spring 4 to drive the second blocking surface 225 to contact the first blocking surface 256. This not only limits the linkage 31 by the spring 4 to prevent the linkage 31 from shaking when it is not working, but also accelerates the reset of the linkage 31.

[0089] Furthermore, the interlocking part 221 has a recessed side near the other interlocking member 22 to form a relief groove 226, and the interlocking surface 224 constitutes the groove wall of the relief groove 226. Preferably, the rear guide part 223 is provided with a relief hole 228 communicating with the relief groove 226, which facilitates the processing and forming of the interlocking member 22.

[0090] Furthermore, the ends of the two opposite groove walls of the interlocking groove 220 are provided with inclined transition surfaces 227. The transition surfaces 227 are used to cooperate with the linkage 31 on the linkage 31, so that the linkage 31 can slide into the interlocking groove 220.

[0091] like Figure 2 As shown, both contactors 3 are open, and the two interlocking parts 22 are limited by the guide boss 255 under the drive of the corresponding spring 4.

[0092] like Figure 3 As shown, when the contactor 3 on the left closes, it drives the linkage 31 on the left to move upward. The linkage 31 drives the interlocking member 22 to move upward, pushing the locking member 23 to move into the slide groove 25 on the right and blocking the interlocking member 22 in the slide groove 25 on the right from moving upward. The interlocking member 22 limits the contactor 3 on the right, preventing the contactor 3 on the right from closing.

[0093] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0094] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An interlocking structure for a reversible contactor, comprising two contactors (3) and an interlocking mechanism (2), wherein each of the two contactors (3) is provided with a linkage mechanism, wherein when one contactor (3) is closed, the linkage mechanism drives the interlocking mechanism (2) to lock the other contactor (3) in a state where it cannot be closed, characterized in that: The linkage mechanism includes a linkage member (31) that is linked to the contact support (311). The interlocking mechanism (2) includes a bracket (21) and two interlocking members (22) that are slidably disposed on the bracket (21). A locking member (23) is provided between the two interlocking members (22). The interlocking member (22) is provided with an interlocking groove (220) that is perpendicular to the movement direction of the linkage member (31). The linkage member (31) is provided with a linkage part that extends out of the contactor (3). The interlocking mechanism (2) can be inserted between the two contactors (3) parallel to the movement direction of the linkage member (31), so that the linkage member (31)... The linkage part is aligned with the interlocking groove (220) of the corresponding interlocking member (22), and the interlocking mechanism (2) can move in a direction perpendicular to the movement of the linkage member (31). The interlocking groove (220) is fitted onto the linkage part of the corresponding linkage member (31), and the interlocking member (22) is connected to the linkage member (31). When one of the contactors (3) closes, the corresponding interlocking member (22) is moved by the linkage member (31), so that the interlocking member (22) pushes the locking member (23) to block the movement of the other interlocking member (22), and locks the contact support (311) of the other contactor (3) to prevent the two contactors (3) from closing at the same time.

2. The interlocking structure of the reversible contactor according to claim 1, characterized in that: The contactor (3) has a first guide groove (32) parallel to the moving direction of the linkage (31) and a second guide groove (33) perpendicular to the moving direction of the linkage (31) on its housing (35). One end of the second guide groove (33) is connected to the first guide groove (32). The interlocking mechanism (2) has a guide block (24) on its bracket (21) for sliding into the first guide groove (32) and the second guide groove (33). When the guide block (24) slides in the first guide groove (32), the linkage part of the interlocking member (22) and the linkage member (31) is misaligned. When the guide block (24) slides in the second guide groove (33), the linkage part slides into or out of the interlocking groove (220).

3. The interlocking structure of the reversible contactor according to claim 2, characterized in that: The second guide groove (33) is provided with a limiting structure (34) at one end away from the first guide groove (32), and the guide block (24) can slide to the end of the second guide groove (33) provided with the limiting structure (34) and be limited by the limiting structure (34).

4. The interlocking structure of the reversible contactor according to claim 3, characterized in that: The guide block (24) includes an elastic plate (241) and a claw (242) disposed on the elastic plate (241). The limiting structure (34) is a protruding boss. The claw (242) can slide in the first guide groove (32) and the second guide groove (33) and can be engaged with the side of the limiting structure (34) away from the first guide groove (32) to form a limiting fit.

5. The interlocking structure of the reversible contactor according to claim 3, characterized in that: The limiting structure (34) has a disassembly groove (37) on the side away from the first guide groove (32), and the disassembly groove (37) extends to the top of the outer shell (35).

6. The interlocking structure of the reversible contactor according to claim 2, characterized in that: The outer casing (35) is provided with two sets of first guide grooves (32) and second guide grooves (33), and the interlocking mechanism (2) is provided with two guide blocks (24) for each contactor.

7. The interlocking structure of the reversible contactor according to claim 1, characterized in that: The linkage component (31) is installed inside the housing (35) of the contactor (3) and connected to the contact support (311). The linkage component (31) is a linkage shaft. The housing (35) is provided with a linkage hole (36). One end of the linkage shaft passes through the linkage hole (36) as a linkage part and protrudes from the side of the housing (35).

8. The interlocking structure of the reversible contactor according to claim 3, characterized in that: The outer casing (35) has a first limiting boss (381) and a second limiting boss (391) on its side. The first limiting boss (381) has a first limiting surface (382) parallel to the first guide groove (32) on its side. The second limiting boss (391) has a second limiting surface (392) parallel to the second guide groove (33) on its side. The first limiting surface (382) and the second limiting surface (392) are perpendicular to each other. The first limiting surface (382) and the second limiting surface (392) are used to limit the bracket (21) of the interlocking mechanism (2) from two vertical directions respectively.

9. The interlocking structure of the reversible contactor according to claim 1, characterized in that: The bracket (21) has sliding grooves (25) on both sides. The two interlocking members (22) are slidably disposed in the sliding grooves (25). The sliding grooves (25) are used to restrict the interlocking members (22) to move only along the moving direction of the linkage member (31). The sliding grooves (25) are provided with locking grooves (254) that communicate with the other sliding groove (25). The locking member (23) is linearly slidably disposed in the locking groove (254). The interlocking member (22) has an inclined interlocking surface (224) on the side near the other interlocking member (22). When the corresponding contactor (3) is closed, the interlocking member (22) pushes the locking member (23) through the interlocking surface (224), so that the locking member (23) slides along the locking groove (254) and extends into the other sliding groove (25), which is used to limit the interlocking surface (224) of the other interlocking member (22) to prevent the other interlocking member (22) from moving.

10. The interlocking structure of the reversible contactor according to claim 9, characterized in that: The interlocking component (22) includes an interlocking part (221) with an interlocking groove (220), and a front guide part (222) and a rear guide part (223) disposed opposite to each other on both sides of the interlocking part (221). The two ends of the sliding groove (25) correspond to the front guide part (222) and the rear guide part (223) respectively. The sliding groove (25) has two opposite front guide grooves (252) at one end corresponding to the front guide part (222). The two sides of the front guide part (222) are respectively inserted into the two front guide grooves (252) for sliding engagement. The sliding groove (25) has two opposite rear guide grooves (253) at one end corresponding to the rear guide part (223). The two sides of the rear guide part (223) are respectively inserted into the two rear guide grooves (253) for sliding engagement.

11. The interlocking structure of the reversible contactor according to claim 1, characterized in that: The bracket (21) and the interlocking member (22) are connected by a spring (4).

12. The interlocking structure of the reversible contactor according to claim 10, characterized in that: The slide groove (25) is provided with a first spring shaft (41), and the front guide part (222) is provided with a second spring shaft (42). The spring (4) is connected between the first spring shaft (41) and the second spring shaft (42). The spring (4) is used to drive the linkage (31) to slide forward in the guide groove (252).

13. The interlocking structure of the reversible contactor according to claim 12, characterized in that: The slide groove (25) has two opposing guide bosses (255) at one end corresponding to the front guide part (222). The first spring shaft (41) is located between the two guide bosses (255). The two guide bosses (255) are respectively provided with the front guide groove (252) on their sides that are close to each other. The two guide bosses (255) are respectively provided with a first blocking surface (256) at one end near the rear guide groove (253). The interlocking part (221) is provided with a second blocking surface (225) at one end connected to the front guide part (222). The linkage (31) is driven by the spring (4) to make the second blocking surface (225) contact the first blocking surface (256).

14. The interlocking structure of the reversible contactor according to claim 10, characterized in that: The interlocking part (221) is recessed on the side near the other interlocking member (22) to form a relief groove (226), and the interlocking surface (224) constitutes the groove wall of the relief groove (226).

15. The interlocking structure of the reversible contactor according to claim 1, characterized in that: The ends of the two opposite groove walls of the interlocking groove (220) are provided with inclined transition surfaces (227), which are used to cooperate with the linkage (31).

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