Mechanical interlocking structure of switchgear

Abstract

A mechanical interlocking structure of a switch electrical appliance comprises a first switch electrical appliance A, a second switch electrical appliance B and an interlocking mechanism, and also comprises a switching device, wherein the first switch electrical appliance A is connected to one end of the interlocking mechanism, and the other end of the interlocking mechanism is connected to the second switch electrical appliance B through the switching device, wherein the switching device comprises a switching shell and direct-acting parts respectively mounted on the switching shell, and the interlocking mechanism comprises two rotating parts provided with interlocking parts, and the mechanical interlocking between the second switch electrical appliance B with direct-acting transmission and the first switch electrical appliance A with rotary transmission can be achieved through the switching device, and the structure has the characteristics of flexible use, convenient installation and reliable interlocking.

Description

Technical Field

[0001] The invention relates to the field of low-voltage electrical appliances, and in particular to a mechanical interlocking structure of a switch electrical appliance. Background Art

[0002] Switching devices such as contactors and circuit breakers are often used to control electrical circuits. Interlocking devices are connected between the switching devices of two electrical circuits to prevent the two switching devices from operating the two electrical circuits at the same time. When one of the switching devices is closed, the interlocking device locks the other switching device to prevent the other switching device from closing. However, existing switching devices are reserved with a transmission mechanism for connecting the interlocking device. Existing interlocking devices are usually used to connect two transmission mechanisms of the same structure. If the structures of the transmission mechanisms on the two switching devices are different, the existing interlocking device cannot achieve the interlocking function.

[0003] In particular, for an interlocking mechanism used to connect two rotary transmission mechanisms, if one transmission mechanism is rotary and the other transmission mechanism is changed to direct-acting, the interlocking mechanism cannot achieve the interlocking function. Summary of the invention

[0004] The purpose of the invention is to overcome the defects of the prior art and provide a mechanical interlocking structure capable of realizing direct-acting transmission and rotary-actuating transmission switch electrical appliances.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A mechanical interlocking structure of a switch electrical appliance comprises a first switch electrical appliance, a second switch electrical appliance and an interlocking mechanism, and also comprises an adapter device, wherein the first switch electrical appliance is connected to one end of the interlocking mechanism, and the other end of the interlocking mechanism is connected to the second switch electrical appliance through the adapter device, the adapter device comprises an adapter shell and a direct-acting member mounted on the adapter shell, the interlocking mechanism comprises two rotating members provided with an interlocking portion, the adapter shell is provided with a guide hole for the rotation of the interlocking portion, one of the rotating members of the interlocking mechanism is connected to the first switch electrical appliance through the interlocking portion, and the interlocking portion of the other rotating member extends into the guide hole of the adapter shell, and when the first switch electrical appliance is closed, the corresponding rotating member can be driven to rotate to a position that blocks the rotation of the rotating member that cooperates with the adapter device; the direct-acting member is used to connect the second switch electrical appliance, and when the second switch electrical appliance is closed, the direct-acting member can be driven to move linearly, and the interlocking portion of the corresponding rotating member is pushed to rotate in the guide hole so that the corresponding rotating member rotates to a position that blocks the rotating member connected to the first switch electrical appliance.

[0007] Preferably, the direct-acting member drives the interlocking portion via a driving groove provided at one end of the direct-acting member, the length direction of the driving groove is inclined with respect to the moving direction of the direct-acting member, and the interlocking portion extends into the driving groove.

[0008] Preferably, the adapter device also includes a snap-fitting part, and the snap-fitting part and the rotating part corresponding to the second switching electrical appliance are respectively located on both sides of the adapter shell, one end of the snap-fitting part is limitedly engaged with the adapter shell, and the other end of the snap-fitting part passes through the guide hole and is fixedly connected with the interlocking part of the rotating part, and the drive groove is sleeved on the snap-fitting part.

[0009] Preferably, the direct-acting member includes a connected sliding part and a driving part, the driving part is located on one side of the center line of the sliding part, the sliding part is provided with a transmission shaft for connecting to a second switching electrical appliance, the driving part is provided with a driving groove, and the adapter shell is provided with a slide groove cooperating with the sliding part, and the direct-acting member is installed in the slide groove through a reset spring.

[0010] Preferably, a long strip mounting hole parallel to the slide groove is provided in the middle of the sliding part, a reset spring is provided in the mounting hole, and a mounting plate is provided in the slide groove of the adapter shell. The mounting plate can be inserted into one end of the mounting hole and abut against one end of the reset spring, and the inner wall of the other end of the mounting hole abuts against the other end of the reset spring.

[0011] Preferably, guide parts are respectively provided on both sides of the sliding part, and the adapter shell is correspondingly provided with two oppositely arranged guide members on both sides of the sliding groove, and guide grooves matching with the two guide parts are respectively provided on the inner sides of the two guide members.

[0012] Preferably, the interlocking part is a cylindrical structure, the snap-fit ​​part includes an outer sleeve that is limitedly matched with the adapter shell, and an inner sleeve arranged on the inner side of the outer sleeve, the driving groove of the direct-acting part is sleeved on the outer side of the outer sleeve, one end of the inner sleeve is connected to the inner wall of the outer sleeve, and the other end of the inner sleeve is provided with a first barb, and the first barb of the inner sleeve passes through the guide hole and the inner side of the interlocking part and is limitedly matched with one end of the interlocking part, so that the other end of the interlocking part is limited between the inner sleeve and the outer sleeve.

[0013] Preferably, the first switching electrical appliance and the second switching electrical appliance are contactors; the two rotating members are respectively a first rotating member corresponding to the first switching electrical appliance and a second rotating member corresponding to the second switching electrical appliance; the first rotating member and the second rotating member respectively include a pivot portion and an interlocking portion arranged on one side of the pivot portion, and the interlocking portion can drive the first rotating member and the second rotating member to rotate around their respective pivot portions; the adapter shell is fixedly connected to the housing of the second switching electrical appliance, the adapter shell is provided with a pivot hole and a guide hole arranged along the rotation direction of the interlocking portion is provided on one side of the pivot hole, and the pivot portion of the second rotating member is pivotally installed in the pivot hole of the adapter shell; the interlocking mechanism includes an interlocking shell, the interlocking shell is fixedly connected to the housing of the first switching electrical appliance, and the pivot portion of the first rotating member is pivotally installed on the interlocking shell.

[0014] Preferably, the adapter shell is in a T-shaped structure, and the adapter shell includes a connected upper shell and a lower shell, the lower shell is arranged below the middle part of the lower shell to form a T-shaped structure, the lower shell is provided with a slide groove cooperating with the direct-acting member, a pivot hole and a guide hole cooperating with the second rotating member are provided at one end of the upper shell, and a second pivot hole cooperating with the pivot part of the first rotating member is provided at the other end of the upper shell, and the guide hole is provided between the pivot hole and the second pivot hole.

[0015] Preferably, the first switch electrical appliance includes a connecting rod pivotally installed in the first switch electrical appliance, the connecting rod is respectively connected to the contact support and the first rotating member of the first switch electrical appliance, and the contact support of the first switch electrical appliance can drive the connecting rod to rotate and drive the first rotating member to rotate; a transmission groove is provided on the contact support of the second switch electrical appliance, and the contact support of the second switch electrical appliance is connected to the direct-moving member of the adapter device through the transmission groove, driving the direct-moving member to move linearly.

[0016] The mechanical interlocking structure of the switch electrical appliance created by the present invention realizes the connection between the second switch electrical appliance and the interlocking mechanism through a conversion device, and is connected to the existing interlocking mechanism for interlocking two first switch electrical appliances through the direct-acting member of the conversion device. It does not need to change the existing interlocking mechanism structure to realize the mechanical interlocking between the second switch electrical appliance with direct-acting transmission and the first switch electrical appliance with rotary transmission. It has the characteristics of flexible use, easy installation and reliable interlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure after the mechanical interlocking structure of the switch electrical appliance of the embodiment of the invention is assembled with the first switch electrical appliance, the second switch electrical appliance and the interlocking mechanism;

[0018] Figure 2 This invention creates an embodiment Figure 1 Assembly diagram of

[0019] Figure 3 It is a schematic diagram of the assembly of the mechanical interlocking structure of the switch electrical appliance according to the embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the cooperation between the direct-acting member and the rotating member of the embodiment of the invention;

[0021] Figure 5 It is a schematic structural diagram of a direct-acting member according to an embodiment of the present invention;

[0022] Figure 6 The two rotating parts of the present invention are located at mutually avoiding positions;

[0023] Figure 7 The two rotating parts of the embodiment of the present invention form a locked position;

[0024] Figure 8It is a schematic diagram of the structure of the first switch electrical device according to the embodiment of the present invention;

[0025] Fig. 9 It is a schematic diagram of the coordination between the contact support and the rotating member in the first switch electrical device according to the invention;

[0026] Fig.10 It is the disconnected position supported by the contacts in the first switching device of the present invention;

[0027] Fig.11 It is the closed position of the contact support in the first switching device of the present invention;

[0028] Fig.12 It is a schematic diagram of the structure of the second switch electrical device according to the embodiment of the present invention;

[0029] Fig.13 It is a schematic diagram of the coordination between the contact support and the stopper in the second switch electrical appliance of the invention;

[0030] Fig.14 It is the disconnected position supported by the contacts in the second switching device of the present invention;

[0031] Fig.15 It is the closed position of the contact support in the second switch electrical device of the invention;

[0032] Fig.16 It is a schematic diagram of assembling the adapter shell, the rotating part and the buckle part according to the embodiment of the invention;

[0033] Fig.17 It is a schematic diagram of the assembly of the adapter housing, the direct-acting member and the return spring according to the embodiment of the invention;

[0034] Fig.18 This invention creates an embodiment Fig.17 A partial cross-sectional view of

[0035] Fig.19 This invention creates an embodiment Fig.18 A partial enlarged view of . DETAILED DESCRIPTION

[0036] The following is combined with Figures 1 to 19 The given embodiments further illustrate the specific implementation of the mechanical interlocking structure of the switch electrical apparatus created by the present invention. The mechanical interlocking structure of the switch electrical apparatus created by the present invention is not limited to the description of the following embodiments.

[0037] like Figure 1-5As shown, the mechanical interlocking structure of the switch electrical appliance created by the present invention includes a first switch electrical appliance A, a second switch electrical appliance B and an interlocking mechanism 100, and also includes a switching device, wherein the first switch electrical appliance A is connected to one end of the interlocking mechanism 100, and the other end of the interlocking mechanism 100 is connected to the second switch electrical appliance B through the switching device, the switching device includes a switching shell 200 and a direct-acting member 210 installed on the switching shell 200, the interlocking mechanism 100 includes two rotating members 120 provided with an interlocking portion 122, the switching shell 200 is provided with a guide hole 1220 for the interlocking portion 122 to rotate, and one of the rotating members 120 of the interlocking mechanism 100 0 is connected to the first switch electrical device A through the interlocking portion 122, and the interlocking portion 122 of the other rotating member 120 extends into the guide hole 1220 of the adapter housing 200. When the first switch electrical device A is closed, it can drive the corresponding rotating member 120 to rotate to a position that blocks the rotation of the rotating member 120 matched with the adapter device; the direct-acting member 210 is used to connect the second switch electrical device B. When the second switch electrical device B is closed, it can drive the direct-acting member 210 to move linearly, and push the interlocking portion 122 of the corresponding rotating member 120 to rotate in the guide hole 1220, so that the corresponding rotating member 120 rotates to a position that blocks the rotating member 120 connected to the first switch electrical device A.

[0038] The two rotating parts 120 in the prior art respectively correspond to two first switch electrical appliances A with a rotary transmission mode. When any first switch electrical appliance A is actuated, it drives the corresponding rotating part 120 to rotate to a position that blocks the rotation of the other rotating part 120. However, if one of the first switch electrical appliances A is replaced with a second switch electrical appliance B with a direct transmission mode, the second switch electrical appliance B cannot directly drive the rotating part 120 to rotate. The mechanical interlocking structure of the switch electrical appliance created by the present invention realizes the connection between the second switch electrical appliance B and the interlocking mechanism 100 through an adapter device, and is connected to the existing interlocking mechanism 100 for interlocking the two first switch electrical appliances A through the direct-acting part 210 of the adapter device. The mechanical interlocking between the second switch electrical appliance B with a direct-acting transmission and the first switch electrical appliance A with a rotary transmission can be realized without changing the structure of the existing interlocking mechanism 100. The mechanical interlocking structure has the characteristics of flexible use, convenient installation and reliable interlocking.

[0039] like Figure 8-15As shown, the first switch A and the second switch B of this embodiment are contactors, and the first switch A and the second switch B respectively include a contact support 310, a moving contact 320 and a static contact (not shown in the figure), and the contact support 310 can drive the moving contact 320 to contact and separate with the static contact to realize the conduction and disconnection of the contactor, and the first switch A and the second switch B respectively include a rotating first transmission mechanism and a direct-acting second transmission mechanism connected to their respective contact supports 310, and the first transmission mechanism and the second transmission mechanism are respectively used to connect the interlocking mechanism 100. Of course, the first switch A and the second switch B can also be circuit breakers, and the interlocking mechanism 100 can be used to interlock the handles or operating mechanisms of the first switch A and the second switch B to prevent the first switch A and the second switch B from being closed at the same time, which all belong to the protection scope of the invention.

[0040] like Figure 8-11 As shown, the first transmission mechanism of the rotating first switch A includes a connecting rod 330 pivotally mounted in the first switch A. The connecting rod 330 is respectively connected to the contact support 310 and the rotating member 120 of the first switch A. When the contact support 310 drives the moving contact 320 to contact and separate with the static contact, it can drive the connecting rod 330 to rotate. When the connecting rod 330 rotates, it can drive the rotatable rotating member 120 of the interlocking mechanism 100 to rotate. Figure 8-11 In the illustrated embodiment, the connecting rod 330 is disposed on one side of the contact support 310 , and both ends of the connecting rod 330 are connected to the contact support 310 through a lever, and the up and down movement of the contact support 310 drives the connecting rod 330 to rotate through the lever.

[0041] like Figure 12-15 As shown, the direct-acting second transmission mechanism of the second switch electrical appliance B is a transmission groove 340 on the contact support 310 of the second switch electrical appliance B. When the contact support 310 drives the moving contact 320 to contact and separate with the static contact, it can drive the transmission groove 340 to move linearly. The transmission groove 340 is used to connect and cooperate with the linear interlocking mechanism to achieve mechanical interlocking of the two second switch electrical appliances B. In the present invention, the second switch electrical appliance B is connected to the rotating part 120 of the interlocking mechanism 100 through a switching device to achieve mechanical interlocking with the first switch electrical appliance A.

[0042] like Figure 7As shown, the interlocking mechanism 100 includes an interlocking shell, and two rotating members 120 respectively pivotally mounted on the interlocking shell. The two rotating members 120 correspond to the contact supports 310 of the first switch electrical appliance A and the second switch electrical appliance B respectively. When the contact support 310 drives the moving contact 320 to contact the static contact, it can drive the corresponding rotating member 120 to rotate to the rotation direction of the other rotating member 120, which is used to block the other rotating member 120, and prevent the contact support 310 corresponding to the blocked rotating member 120 from driving the moving contact 320 to contact the static contact, thereby avoiding the first switch electrical appliance A and the second switch electrical appliance B from being turned on at the same time, thereby realizing mechanical interlocking. Figure 6 As shown, when the contact support 310 drives the moving contact 320 to separate from the static contact, it can drive the corresponding rotating member 120 to return to a position to avoid the other rotating member 120, thereby releasing the blocking effect on the other rotating member 120. At this time, the contact support 310 of the first switch electrical device A and the second switch electrical device B can move freely. It should be noted that the interlocking mechanism 100 can also adopt other mechanical interlocking structures with rotational coordination.

[0043] The interlocking mechanism 100 of this embodiment can realize interlocking between two first switch electrical appliances A, and the prior art can also realize interlocking between two second switch electrical appliances B directly, but the prior art cannot realize interlocking between the first switch electrical appliances A and the second switch electrical appliances B. The transmission groove 340 of the second transmission mechanism cannot cooperate with the rotating member 120 of the interlocking mechanism 100 when moving linearly, and cannot directly drive the rotating member 120 of the interlocking mechanism 100 of this embodiment to rotate. The present invention is to realize interlocking with the first switch electrical appliance A by means of a transfer device arranged between the interlocking mechanism 100 and the second switch electrical appliance B, so that the second switch electrical appliance B drives the rotating member 120 of the interlocking mechanism 100 to rotate through the direct-acting member 210 of the transfer device.

[0044] like Figure 2 , 16 -19, the adapter device includes an adapter shell 200 and a direct-acting member 210 mounted on the adapter shell 200, and the two rotating members 120 are respectively a first rotating member 120A corresponding to the first switch electrical device A and a second rotating member 120B corresponding to the second switch electrical device B;

[0045] The first rotating member 120A and the second rotating member 120B respectively include a pivoting portion 121 and an interlocking portion 122 arranged on one side of the pivoting portion 121. The interlocking portion 122 can drive the first rotating member 120A and the second rotating member 120B to rotate around their respective pivoting portions 121. The pivoting portion 121 of the first rotating member 120A is pivotally mounted on an interlocking housing, which is connected to the housing of the first switch electrical device A. The interlocking portion 122 of the first rotating member 120A is connected to the connecting rod 330 in the first switch electrical device A.

[0046] The pivot portion 121 of the second rotating member 120B is pivotally installed in a pivot hole 1210 installed in the adapter shell 200. The adapter shell 200 is provided with a guide hole 1220 arranged along the rotation direction of the interlocking portion 122 on one side of the pivot hole 1210. The interlocking portion 122 of the second rotating member 120B extends into the guide hole 1220 of the adapter shell 200 and cooperates with the direct-acting member 210 of the adapter device. The direct-acting member 210 is connected to the transmission groove 340 of the second switching device B through the transmission shaft 213. The guide hole 1220 is preferably an arc shape, and of course it can also be a hole of any shape larger than the rotation range of the interlocking portion 122.

[0047] When the first switch electrical appliance A is closed, it can drive the first rotating member 120A to rotate to a position that blocks the rotation of the second rotating member 120B. At this time, the direct-acting member 210 cannot drive the second rotating member 120B to rotate, and the direct-acting member 210 is limited by the second rotating member 120B and cannot move, so that the second switch electrical appliance B cannot be closed. When the first switch electrical appliance A is opened, it drives the first rotating member 120A to rotate and reset to release the limit on the second rotating member 120B; when the second switch electrical appliance B is closed, it can drive the direct-acting member 210 to move linearly, and the direct-acting member 210 pushes the second rotating member 120B to rotate in the guide hole 1220 to a position that blocks the rotation of the first rotating member 120A. At this time, the first switch electrical appliance is limited by the first rotating member 120A and cannot be closed. When the second switch electrical appliance B is opened, it drives the direct-acting member 210 to reset, releases the limit on the second rotating member 120B, and enables the first switch electrical appliance A to be closed, thereby realizing the mechanical interlocking of the two switch electrical appliances.

[0048] As an embodiment of the direct-acting member 210, the direct-acting member 210 drives the interlocking portion 122 through a driving groove 230 provided at one end of the direct-acting member 210, the length direction of the driving groove 230 is inclined to the moving direction of the direct-acting member 210, and the interlocking portion 122 extends into the driving groove 230. When the direct-acting member 210 moves linearly, the interlocking portion 122 of the second rotating member 120B is driven by a side wall of the driving groove 230 to drive the second rotating member 120B to rotate and lock the first rotating member 120A. When the direct-acting member 210 moves linearly in the opposite direction to reset, the interlocking portion 122 of the second rotating member 120B is driven by the other side wall of the driving groove 230 to drive the second rotating member 120B to rotate in the opposite direction to release the lock on the first rotating member 120A. Preferably, the driving groove 230 is a long strip oblique guide groove. Further, the driving groove 230 can be oval in shape, which is convenient for cooperation with the interlocking portion 122.

[0049] As an embodiment of the direct-acting member 210, the direct-acting member 210 can also drive the interlocking portion 122 through an oblique guide rod extending toward the interlocking portion 122 of the second rotating member 120B at one end of the direct-acting member 210, the oblique guide rod and the direct-acting member 210 are integrally formed, and the direct-acting member 210 drives the interlocking portion 122 of the second rotating member 120B through the oblique guide rod when the direct-acting member 210 moves linearly, driving the second rotating member 120B to rotate, which can be applicable to the interlocking mechanism 100 in which the second rotating member 120B can be automatically reset. Or the direct-acting member 210 indirectly drives the interlocking portion 122 of the second rotating member 120B to rotate through a rotating lever disposed in the adapter shell 200, such as the middle part of the rotating lever is rotatably installed in the adapter shell 200, one end cooperates with the direct-acting member 210, and the other end cooperates with the interlocking portion 122, all of which belong to the protection scope of the invention.

[0050] As a preferred embodiment of the present invention, the adapter device further comprises a snap member 220, the snap member 220 and the corresponding second rotating member 120B are arranged on both sides of the adapter shell 200, the snap member 220 passes through the guide hole 1220 and is fixedly connected with the interlocking portion 122 of the rotating member 120, and the driving groove 230 is sleeved on the snap member 220. The snap member 220 can install the rotating member 120 and the adapter shell 200 together, not only by ensuring the relative position of the rotating member 120 and the linear member 210 with the adapter shell 200, and then ensuring the relative position between the rotating member 120 and the linear member 210, so that the rotating member 120 drives the linear member 210 to rotate more reliably, but also the guide hole 1220 can play a guiding role for the interlocking portion 122. Of course, the second rotating member 120B can be installed with the adapter shell 200 without the buckle 220, and the second rotating member 120B can also be pivotally installed on the interlocking shell together with the first rotating member 120.

[0051] Preferably, Fig.16 , 18 As shown, the interlocking part 122 is a cylindrical structure, and the buckle 220 includes an outer sleeve 221 that is limited and matched with the adapter shell 200, and an inner sleeve 222 arranged on the inner side of the outer sleeve 221, one end of the inner sleeve 222 is connected to the inner wall of the outer sleeve 221, and the other end of the inner sleeve 222 is provided with a first barb 223, and the end of the inner sleeve 222 provided with the first barb 223 can pass through the guide hole 1220 of the adapter shell 200 and the inner side of the interlocking part 122 of the rotating member 120 and then be limited and matched with one end of the interlocking part 122, so that the other end of the interlocking part 122 is limited between the inner sleeve 222 and the outer sleeve 221, which has the characteristics of simple structure and convenient assembly. Of course, threads can also be processed on the inner side of the inner sleeve 222, so that the inner sleeve 222 is fixed to the rotating member 120 by screws, which all belong to the protection scope of the invention.

[0052] like Figure 2As shown, the adapter shell 200 is in a T-shaped structure. The adapter shell 200 includes an upper shell 200a and a lower shell 200b that are connected. The lower shell 200b is arranged below the middle part of the lower shell 200b to form a T-shaped structure. The lower shell 200b is provided with a slide groove 2110 that cooperates with the direct-acting member 210 and cooperates with the direct-acting member 210. A pivot hole 1210 and a guide hole 1220 that cooperate with the second rotating member 120B are provided at one end of the upper shell 200a. A second pivot hole 1210b that cooperates with the pivot portion 121 of the first rotating member 120A is provided at the other end of the upper shell 200a. Through the T-shaped structure, the pivot hole 1210 and the second pivot hole 1210b are evenly arranged, and the guide hole 1220 is arranged between the pivot hole 1210 and the second pivot hole 1210b.

[0053] Although the first rotating member 120A is pivotally mounted on the interlocking shell, the adapter shell 200 cooperates with the pivot portion 121 of the first rotating member 120A through the second pivot hole 1210b, thereby ensuring the relative position between the adapter shell 200 and the first rotating member 120A, and further ensuring the relative position between the first rotating member 120A and the second rotating member 120B, so that the connection between the adapter device created by the present invention and the interlocking mechanism 100 is tighter and more reliable, avoiding shaking and unreliable cooperation during operation.

[0054] Furthermore, two second hooks 201 are respectively provided on both sides of the lower shell 200b, and a slot 202 ( Figure 3 ), the lower shell 200b is fixed to the slot 202 by the second hook 201. Of course, the upper shell 200a can also be provided with the second hook 201, and the second hook 201 can also be provided at other positions on the adapter shell 200. In addition, the adapter shell 200 can also be provided with threaded holes and connected to the housing of the second switch electrical appliance B by screws, which all belong to the protection scope of the invention.

[0055] like Fig.17 As shown, the direct-acting member 210 includes a connected sliding portion 211 and a driving portion 212, the driving portion 212 is located on one side of the center line of the sliding portion 211, the sliding portion 211 is provided with a transmission shaft 213 for connecting to the transmission groove 340 on the contact support 310 of the second switching electrical appliance B, the driving portion 212 is provided with a driving groove 230 which is sleeved around the outer sleeve 221 on the buckle 220, a slide groove 2110 which cooperates with the sliding portion 211 is provided on the adapter shell 200, and the length direction of the slide groove 2110 is arranged parallel to the moving direction of the contact support 310 of the second switching electrical appliance B, and the direct-acting member 210 is installed in the slide groove 2110 through a reset spring 240.

[0056] See also Figure 8In order to avoid mutual interference between the two rotating members 120 when unlocking, the connecting rod 330 on the first switch device A is located on one side of the center line of the housing side of the first switch device A, see Fig.12 In order to facilitate interlocking in the prior art, the transmission groove 340 on the second switch electrical appliance B is located on the center line of the side of the housing of the second switch electrical appliance B. When the first switch electrical appliance A and the second switch electrical appliance B are arranged side by side, the connecting rod 330 and the transmission groove 340 cannot be aligned. By arranging the driving part 212 on one side of the center line of the sliding part 211, the sliding part 211 corresponds to the transmission groove 340 on the center line of the second switch electrical appliance B, and the buckle 220 can be located on one side of the center line, so that the second rotating part 120B that should originally correspond to the connecting rod 330 on one side of the center line can be directly connected to the buckle 220, so that the positions of the first switch electrical appliance A and the second switch electrical appliance B after interlocking will not be misaligned, which can facilitate installation and use.

[0057] In addition, the slide groove 2110 can guide and limit the movement of the direct-acting member 210, which can not only limit the angle of the direct-acting member 210 and ensure that the driving groove 230 on the direct-acting member 210 can reliably drive the locking member 220 to swing, but also the direct-acting member 210, the locking member 220, and the second rotating member 120B can be first assembled into one with the adapter shell 200, and then installed as a whole on the shell of the second switch electrical appliance B, which can simplify the difficulty of assembly.

[0058] Preferably, the driving groove 230 is in an oblong shape and the length direction of the driving groove 230 is perpendicular to the moving direction of the direct-acting member 210, that is, arc surfaces 231 are respectively provided at both ends of the driving groove 230, and the length direction of the driving groove 230 is perpendicular to the moving direction of the direct-acting member 210. Of course, the driving groove 230 can also be in a polygonal shape. When the direct-acting member 210 moves, the inner wall of the driving groove 230 pushes the vertical sides of the buckle 220. Although the swing amplitude of the interlocking part 122 is small and the length of the driving groove 230 is not very obvious, it is sufficient to ensure that the horizontal sides will not be blocked when the buckle 220 swings. Preferably, the length direction of the driving groove 230 is perpendicular to the moving direction of the direct-acting member 210.

[0059] Furthermore, a long strip-shaped mounting hole 214 parallel to the slide groove 2110 is provided in the middle of the sliding part 211, a return spring 240 of a compression spring structure is provided in the mounting hole 214, and a mounting plate 215 is provided in the slide groove 2110 of the adapter shell 200, and the mounting plate 215 can be inserted into one end of the mounting hole 214 to abut against one end of the return spring 240, and the inner wall of the other end of the mounting hole 214 abuts against the other end of the return spring 240. By arranging the return spring 240 in the mounting hole 214 in the middle of the sliding part 211, it not only has the characteristics of compact structure and small volume, but also can extend the length of the sliding part 211, increase the contact surface between the sliding part 211 and the slide groove 2110, so that the slide groove 2110 can provide a more reliable guiding effect for the sliding part 211. The return spring 240 can accelerate the direct-acting member 210 to drive the second rotating member 120B to reset when the second switch electrical device B is disconnected. Of course, the return spring 240 may also be connected to the outer side of the sliding part 211, or the return spring 240 may also be a tension spring structure. In addition, the return spring 240 may not be provided, and the second switch electrical appliance B may completely drive the direct-acting member 210 to reset, which all belong to the protection scope of the invention.

[0060] Furthermore, guide portions 216 are provided on both sides of the sliding portion 211, and the adapter shell 200 is provided with two guide members 217 arranged opposite to each other on both sides of the slide groove 2110, and guide grooves 218 cooperating with the two guide portions 216 are provided on the inner sides of the two guide members 217. The guide portions 216 on both sides of the sliding portion 211 are respectively slidably matched with the adapter shell 200, which can ensure the balance of the direct-acting member 210, especially when the driving portion 212 is located on one side of the center line of the sliding portion 211, which can effectively prevent the direct-acting member 210 from being skewed or falling off.

[0061] The above content is a further detailed description of the invention in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the invention is limited to these descriptions. For ordinary technicians in the technical field to which the invention belongs, several simple deductions or substitutions can be made without departing from the concept of the invention, which should be regarded as falling within the scope of protection of the invention.

Claims

1. A mechanical interlocking structure of a switch device, comprising a first switch device (A), a second switch device (B) and an interlocking mechanism (100), characterized in that: The invention also includes a transfer device, wherein the first switch electrical device (A) is connected to one end of the interlocking mechanism (100), and the other end of the interlocking mechanism (100) is connected to the second switch electrical device (B) through the transfer device, and the transfer device includes a transfer shell (200) and a direct-acting member (210) installed on the transfer shell (200), and the interlocking mechanism (100) includes two rotating members (120) provided with interlocking parts (122), and the transfer shell (200) is provided with a guide hole (1220) for the interlocking part (122) to rotate, and one of the rotating members (120) of the interlocking mechanism (100) is connected to the first switch electrical device (A) through the interlocking part (122), and the other rotating member (120) is connected to the first switch electrical device (A) through the interlocking part (122). The interlocking portion (122) of the rotating member (120) extends into the guide hole (1220) of the adapter shell (200), and when the first switch electrical appliance (A) is closed, it can drive the corresponding rotating member (120) to rotate to a position that blocks the rotation of the rotating member (120) that cooperates with the adapter device; the direct-acting member (210) is used to connect the second switch electrical appliance (B), and when the second switch electrical appliance (B) is closed, it can drive the direct-acting member (210) to move linearly, pushing the interlocking portion (122) of the corresponding rotating member (120) to rotate in the guide hole (1220) so that the corresponding rotating member (120) rotates to a position that blocks the rotating member (120) connected to the first switch electrical appliance (A).

2. The mechanical interlocking structure of a switch according to claim 1 is characterized in that: The direct-acting member (210) drives the interlocking portion (122) via a driving groove (230) arranged at one end of the direct-acting member (210); the length direction of the driving groove (230) is arranged obliquely with respect to the moving direction of the direct-acting member (210); and the interlocking portion (122) extends into the driving groove (230).

3. The mechanical interlocking structure of the switch electrical appliance according to claim 2 is characterized in that: The adapter device also includes a snap-fit ​​component (220), wherein the snap-fit ​​component (220) and the rotating component (120) corresponding to the second switch electrical device (B) are respectively located on two sides of the adapter shell (200), one end of the snap-fit ​​component (220) is limitedly matched with the adapter shell (200), and the other end of the snap-fit ​​component (220) passes through the guide hole (1220) and is fixedly connected with the interlocking portion (122) of the rotating component (120), and the driving groove (230) is sleeved on the snap-fit ​​component (220).

4. The mechanical interlocking structure of a switch according to claim 2 is characterized in that: The direct-acting member (210) comprises a connected sliding portion (211) and a driving portion (212); the driving portion (212) is located on one side of the center line of the sliding portion (211); the sliding portion (211) is provided with a transmission shaft (213) for connecting to a second switch electrical device (B); the driving portion (212) is provided with a driving groove (230); a sliding groove (2110) cooperating with the sliding portion (211) is provided on the adapter shell (200); and the direct-acting member (210) is installed in the sliding groove (2110) via a return spring (240).

5. The mechanical interlocking structure of a switch according to claim 4 is characterized in that: A long strip-shaped mounting hole (214) parallel to the slide groove (2110) is provided in the middle of the sliding portion (211), a return spring (240) is provided in the mounting hole (214), a mounting plate (215) is provided in the slide groove (2110) of the adapter shell (200), and the mounting plate (215) can be inserted into one end of the mounting hole (214) and abut against one end of the return spring (240), and the inner wall of the other end of the mounting hole (214) abuts against the other end of the return spring (240).

6. The mechanical interlocking structure of a switch electrical appliance according to claim 4, characterized in that: The sliding portion (211) is provided with guide portions (216) on both sides thereof, and the adapter shell (200) is provided with two guide members (217) arranged opposite to each other on both sides of the slide groove (2110), and guide grooves (218) cooperating with the two guide portions (216) are provided on the inner sides of the two guide members (217).

7. The mechanical interlocking structure of a switch electrical appliance according to claim 3, characterized in that: The interlocking part (122) is a cylindrical structure. The snap-fit ​​part (220) includes an outer sleeve (221) that is limitedly matched with the adapter shell (200), and an inner sleeve (222) arranged on the inner side of the outer sleeve (221). The driving groove (230) of the direct-acting part (210) is sleeved on the outer side of the outer sleeve (221). One end of the inner sleeve (222) is connected to the inner wall of the outer sleeve (221). The other end of the inner sleeve (222) is provided with a first barb (223). The first barb (223) of the inner sleeve (222) passes through the guide hole (1220) and the inner side of the interlocking part (122) and then is limitedly matched with one end of the interlocking part (122), so that the other end of the interlocking part (122) is limited between the inner sleeve (222) and the outer sleeve (221).

8. The mechanical interlocking structure of a switch electrical appliance according to claim 1, characterized in that: The first switch electrical device (A) and the second switch electrical device (B) are contactors; the two rotating members (120) are respectively a first rotating member (120A) corresponding to the first switch electrical device (A) and a second rotating member (120B) corresponding to the second switch electrical device (B); the first rotating member (120A) and the second rotating member (120B) respectively comprise a pivoting portion (121) and an interlocking portion (122) arranged on one side of the pivoting portion (121); the interlocking portion (122) can drive the first rotating member (120A) and the second rotating member (120B) to rotate around their respective pivoting portions (121); The adapter shell (200) is fixedly connected to the housing of the second switch electrical device (B), the adapter shell (200) is provided with a pivot hole (1210), and a guide hole (1220) is provided on one side of the pivot hole (1210) along the rotation direction of the interlocking part (122), and the pivot part (121) of the second rotating member (120B) is pivotally mounted in the pivot hole (1210) of the adapter shell (200); The interlocking mechanism (100) comprises an interlocking shell, which is fixedly connected to the housing of the first switch electrical device (A), and the pivoting portion (121) of the first rotating member (120A) is pivotally mounted on the interlocking shell.

9. The mechanical interlocking structure of a switch electrical appliance according to claim 8, characterized in that: The adapter shell (200) is in a T-shaped structure. The adapter shell (200) includes an upper shell (200a) and a lower shell (200b) connected to each other. The lower shell (200b) is arranged below the middle part of the lower shell (200b) to form a T-shaped structure. The lower shell (200b) is provided with a slide groove (2110) that cooperates with the direct-acting member (210). A pivot hole (1210) and a guide hole (1220) that cooperate with the second rotating member (120B) are provided at one end of the upper shell (200a). A second pivot hole (1210b) that cooperates with the pivot part (121) of the first rotating member (120A) is provided at the other end of the upper shell (200a). The guide hole (1220) is arranged between the pivot hole (1210) and the second pivot hole (1210b).

10. The mechanical interlocking structure of a switch electrical appliance according to claim 8, characterized in that: The first switch device (A) comprises a connecting rod (330) pivotally mounted inside the first switch device (A), the connecting rod (330) being respectively connected to the contact support (310) and the first rotating member (120A) of the first switch device (A), the contact support (310) of the first switch device (A) being able to drive the connecting rod (330) to rotate and drive the first rotating member (120A) to rotate; the contact support (310) of the second switch device (B) is provided with a transmission groove (340), the contact support (310) of the second switch device (B) is connected to the direct-acting member (210) of the adapter device via the transmission groove (340), and drives the direct-acting member (210) to move linearly.

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