Double-switch mechanical interlocking device
By combining the panel, guide rail, bracket and padlock design, along with limit and pressure components, the complex installation and model compatibility issues of traditional dual-switch mechanical interlock devices are solved, and simple switch interlock operation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICON CHAT UNION ELECTRIC CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional double-switch mechanical interlock devices are complex to install, troublesome to operate, and have requirements on switch type and installation location.
It adopts a combination design of panel, guide rail, bracket and padlock. The bracket slides on the guide rail and locks in the through hole of the guide rail for interlocking. Combined with limit component and pressure component, it simplifies operation and is suitable for different models of switches.
It achieves simple operation, is applicable to any type of switch, reduces installation complexity and location requirements, and improves safety.
Smart Images

Figure CN224138045U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of mechanical interlocking devices, and more specifically, to a dual-switch mechanical interlocking device. Background Technology
[0002] A double-switch mechanical interlock device is a mechanical device used to ensure that two switches cannot be closed or operated simultaneously. Through the design of the mechanical components, when one switch is activated, it will drive the corresponding mechanical structure to move, thereby blocking the operating components of the other switch and preventing it from completing the closing action. This prevents the two switches from operating simultaneously, which could cause short circuits, equipment damage, or other safety problems.
[0003] Traditional mechanical interlocking methods involve installing complex push-pull devices on the switches. For example, the device may contain lever structures connected to two switches respectively. When one switch is pushed to close, the connected lever will rotate. The rotation of the lever will cause components such as the locking bolt to move and lock. This method is relatively complex to install and cumbersome to operate. Furthermore, the complex push-pull device usually has certain requirements on the type or location of the switch. Utility Model Content
[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a dual-switch mechanical interlock device, which solves the technical problem that the complex push-pull mechanical interlock device in the prior art is troublesome to operate and has certain requirements on the type of switch or the installation position.
[0005] According to one aspect, at least one embodiment of this disclosure provides a dual-switch mechanical interlock device, including a panel, a guide rail, a bracket, and a padlock. The panel is detachably mounted on a wall, and the panel has a through hole for a switch handle. The guide rail is threadedly connected to the panel by bolts. The bracket is slidably mounted on the guide rail, and the padlock is detachably mounted on the bracket and the guide rail.
[0006] Furthermore, it also includes a limiting component, which includes a fixed plate, a limiting rod, a fixing rod, and a tensioning component. The fixed plate is fixedly installed on the side of the panel, and two fixing grooves are opened at the top of the fixed plate. The limiting rod is slidably installed through the fixed plate. There are two fixing rods, which are respectively fixedly installed on both sides of the fixed plate. The tensioning component is located on the side of the panel.
[0007] Furthermore, the tensioning assembly includes a connecting plate and a spring. The connecting plate is fixedly installed on the side of the panel, one end of the spring is fixedly installed on the bottom end of the connecting plate, and the other end of the spring is fixedly installed on the top end of the limiting rod.
[0008] Furthermore, both the top of the bracket and the top of the guide rail are provided with fixing holes, and the fixing holes are adapted to the limiting rod.
[0009] Furthermore, the two fixing rods are respectively located directly above the two fixing slots of the fixing plate, and the fixing rods are adapted to the fixing slots.
[0010] Furthermore, it also includes a pressing assembly, of which two are provided, both of which are located on the side of the bracket. Each pressing assembly includes a U-shaped frame, a second spring, a pressing block, and a pressing rod. The U-shaped frame is fixedly installed on the side of the bracket, and the two inner sidewalls of the U-shaped frame have sliding grooves. One end of the second spring is fixedly installed on the inner top end of the U-shaped frame, and the top end of the pressing block is fixedly connected to the other end of the second spring. The two sides of the pressing block are slidably installed in the sliding grooves of the U-shaped frame via sliding rods, and the pressing rod is fixedly installed on the bottom end of the pressing block.
[0011] Furthermore, two grooves are formed at the inner top of the U-shaped frame.
[0012] Furthermore, two positioning rods are fixedly installed at the top of the sliding rods on both sides of the lower pressure block, and the two positioning rods are respectively located in the same vertical position with the two through slots of the U-shaped frame.
[0013] Furthermore, when the second spring is in its natural state, the bottom end of the pressure rod is lower than the top end of the switch.
[0014] Furthermore, the guide rail has two through holes at its inner bottom end, and the padlock is detachably installed in the through holes.
[0015] The beneficial effects of the embodiments disclosed herein are as follows:
[0016] In this disclosure, when restricting a switch on one side, the bracket can be pushed on the guide rail to the side to be restricted, thereby blocking the switch on the side to be restricted. The padlock is then hooked into the through hole of the guide rail on the side of the unrestricted switch, thereby blocking the bracket. This device, through the cooperation between the panel, guide rail, bracket, and padlock, is easy to operate when mechanically interlocking two switches, and is applicable to any type of switch with few limitations. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the limiting component of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the pressing component of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the panel, guide rail, bracket, padlock, switch and bolts of this utility model.
[0022] Figure 5 This is a schematic diagram of the U-shaped frame of this utility model.
[0023] In the diagram: 1. Panel; 2. Guide rail; 3. Bracket; 4. Padlock; 5. Fixing plate; 6. Limiting rod; 7. Fixing rod; 8. Connecting plate; 9. Spring 1; 10. U-shaped frame; 11. Spring 2; 12. Lower pressure block; 13. Lower pressure rod; 14. Positioning rod; 15. Slide rod; 16. Bolt 1. Detailed Implementation
[0024] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0025] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0026] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0027] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0030] Example 1, as Figures 1-5 As shown, a dual-switch mechanical interlock device according to an embodiment of the present disclosure is illustrated, including a panel 1, a guide rail 2, a bracket 3 and a padlock 4. The panel 1 is detachably mounted on the wall and has a switch handle through hole. The guide rail 2 is connected to the panel 1 by a bolt with a 16 thread. The bracket 3 is slidably mounted on the guide rail 2 and the padlock 4 is detachably mounted on the bracket 3 and the guide rail 2.
[0031] like Figure 4 As shown, when restricting a switch on one side, the bracket 3 can be pushed on the guide rail 2 to the side to be restricted, so that the bracket 3 blocks the restricted switch. The inner bottom end of the guide rail 2 has two through holes, and the padlock 4 can be detachably installed in the through holes. The padlock 4 can be hung in the through hole of the guide rail 2 on the side of the unrestricted switch, thereby limiting the bracket 3. This method is easy to operate.
[0032] In embodiment two, because the padlock 4 can still rotate within a small range within the through hole, its blocking effect on the bracket 3 is not good. Therefore, the bracket 3 can be limited by a limiting component, such as... Figure 2 As shown, the limiting assembly includes a fixed plate 5, a limiting rod 6, a fixing rod 7, and a tensioning assembly. The fixed plate 5 is fixedly installed on the side of the panel 1, and two fixing slots are formed at the top of the fixed plate 5. The limiting rod 6 is slidably installed on the fixed plate 5. Two fixing rods 7 are provided, and the two fixing rods 7 are respectively fixedly installed on both sides of the fixed plate 5. The tensioning assembly is located on the side of the panel 1. The tensioning assembly includes a connecting plate 8 and a spring 9. The connecting plate 8 is fixedly installed on the side of the panel 1. One end of the spring 9 is fixedly installed on the bottom end of the connecting plate 8, and the other end of the spring 9 is fixedly installed on the bottom end of the connecting plate 8. Specifically, after the bracket 3 has been moved on the guide rail 2, the top of the limiting rod 6 is provided with a fixing hole, and the fixing hole is compatible with the limiting rod 6. Under the action of the spring 9, the limiting rod 6 can be pushed downward into the fixing hole of the bracket 3, thereby inserting the limiting rod 6 into the fixing hole of the guide rail 2 and the bracket 3. Since the two fixing rods 7 are located directly above the two fixing slots of the fixing plate 5, and the fixing rods 7 are compatible with the fixing slots, they can be driven to insert into the fixing slots of the fixing plate 5, thereby fixing the bracket 3.
[0033] Working principle: Before the bracket 3 moves, the bottom end of the limiting rod 6 contacts the top end of the bracket 3, and the limiting rod 6 compresses the spring 9. After the movement is completed, the fixing hole of the bracket 3 is aligned with the fixing hole of the guide rail 2. Then the limiting rod 6 moves downward under the action of the spring and inserts into the fixing holes of the bracket 3 and the guide rail 2. At the same time, it drives the fixing rod 7 to be inserted into the fixing groove of the fixing plate 5, thereby limiting the bracket 3.
[0034] In embodiment three, because there is a certain distance between the switch and the bracket 3 after the bracket 3 moves above one of the switches, if a passerby is not paying attention, they may easily touch the switch and move it upwards. Therefore, the switch can be pressed down by a pressing component. Two pressing components are provided, both located on the side of the bracket 3. Figure 3As shown, the pressing assembly includes a U-shaped frame 10, a second spring 11, a pressing block 12, and a pressing rod 13. The U-shaped frame 10 is fixedly installed on the side of the bracket 3. Slide grooves are formed on the two inner sidewalls of the U-shaped frame 10. One end of the second spring 11 is fixedly installed on the inner top of the U-shaped frame 10. The top of the pressing block 12 is fixedly connected to the other end of the second spring 11. The two sides of the pressing block 12 are slidably installed in the slide grooves of the U-shaped frame 10 via slide rods 15. The pressing rod 13 is fixedly installed on the pressing block 12. Specifically, when spring 2 11 is in its natural state, the bottom of the lower pressure rod 13 is lower than the top of the switch. Therefore, when moving the support 3, the lower pressure block 12 can move upward. The lower pressure block 12 drives the lower pressure rod 13 upward. When the lower pressure rod 13 moves above the switch, it is released. The lower pressure block 12, under the sliding of the slide rod 15, drives the lower pressure rod 13 to contact the top of the switch and press it down. If the switch is accidentally touched, and the switch is pulled up, it will be blocked by the lower pressure rod 13 and the lower pressure. Figure 5 As shown, since the inner top of the U-shaped frame 10 has two grooves, and the tops of the slide rods 15 on both sides of the two lower pressure blocks are respectively fixedly installed with two positioning rods 14, and the two positioning rods 14 are respectively located in the same vertical position as the two through slots of the U-shaped frame 10, when the switch moves upward, it can drive the positioning rods 14 to move upward. When the positioning rods 14 move upward, they are inserted into the grooves at the inner top of the U-shaped frame 10 and thus blocked.
[0035] Working principle: When moving the support bracket 3, the lower pressure block 12 drives the lower pressure rod 13 to move upward. After the lower pressure rod 13 moves above the switch, it is released, so that the lower pressure rod 13 contacts the top of the switch, thereby pressing the switch. If the switch is accidentally lifted, it can drive the positioning rod 14 to move upward and insert into the groove of the U-shaped frame, thereby restricting the lifting of the switch. It should be noted that when the lower pressure rod 13 contacts the top of the switch, the positioning rod 14 is inserted into the groove of the U-shaped frame 10. Furthermore, if the support bracket 3 needs to be moved, the lower pressure rod 13 can be lifted to prevent the lower pressure rod 13 from rubbing against the switch during movement.
[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A dual switch mechanical interlock device, characterized by, include: Panel (1), which is detachably mounted on the wall, and has a through hole for a switch handle; Guide rail (2), the guide rail (2) is threadedly connected to the panel (1) by bolt (16); A bracket (3) is slidably mounted on the guide rail (2); Padlock (4), which is detachably mounted on the bracket (3) and the guide rail (2).
2. A dual switch mechanical interlock device according to claim 1, wherein, It also includes a limiting component, the limiting component comprising: A fixing plate (5) is fixedly installed on the side of the panel (1), and two fixing grooves are opened at the top of the fixing plate (5); Limiting rod (6), the limiting rod (6) is slidably mounted on the fixing plate (5); Two fixing rods (7) are provided, and the two fixing rods (7) are respectively fixedly installed on both sides of the fixing plate (5); A stretching assembly is disposed on the side of the panel (1).
3. A dual switch mechanical interlock device according to claim 2, wherein, The stretching component includes: A connecting plate (8) is fixedly installed on the side of the panel (1); Spring 1 (9), one end of which is fixedly installed at the bottom end of the connecting plate (8), and the other end of which is fixedly installed at the top end of the limiting rod (6).
4. A dual switch mechanical interlock device according to claim 3, wherein, The top of the bracket (3) and the top of the guide rail (2) are both provided with fixing holes, and the fixing holes are adapted to the limiting rod (6).
5. A dual-switch mechanical interlock device according to claim 4, characterized in that, The two fixing rods (7) are located directly above the two fixing slots of the fixing plate (5), and the fixing rods (7) are adapted to the fixing slots.
6. A dual switch mechanical interlock device according to claim 5, wherein, It also includes a pressing component, of which two are provided, both of which are located on the side of the bracket (3), and the pressing component includes: U-shaped frame (10), the U-shaped frame (10) is fixedly installed on the side of the bracket (3), and the two inner side walls of the U-shaped frame (10) are provided with sliding grooves; Spring 2 (11), one end of which is fixedly installed on the inner top of the U-shaped frame (10); The top end of the lower pressure block (12) is fixedly connected to the other end of the second spring (11), and the two sides of the lower pressure block (12) are slidably installed in the groove of the U-shaped frame (10) through the slide rod (15); The pressure rod (13) is fixedly installed at the bottom end of the pressure block (12).
7. A dual switch mechanical interlock device according to claim 6, wherein, The inner top of the U-shaped frame (10) has two grooves.
8. A dual switch mechanical interlock device according to claim 7, wherein, Two positioning rods (14) are fixedly installed at the top of the sliding rods (15) on both sides of the lower pressure block, and the two positioning rods (14) are respectively located in the same vertical position with the two through slots of the U-shaped frame (10).
9. A dual switch mechanical interlock device according to claim 8, wherein, When the second spring (11) is in its natural state, the bottom end of the pressure rod (13) is lower than the top end of the switch.
10. A dual switch mechanical interlock device according to claim 9, wherein, The guide rail (2) has two through holes at its inner bottom end, and the padlock (4) is detachably installed in the through holes.