Manual interlocking device and switch assembly thereof

Abstract

The utility model discloses a manual interlocking device and a switch assembly thereof, and the manual interlocking device comprises a housing assembly which is internally provided with an installation cavity; the gear assembly is fixedly mounted in the mounting cavity; the first flywheel is used for being connected with a first switch, and the first flywheel is fixedly connected with one end of the gear assembly; the second flywheel is used for being connected with a second switch, and the second flywheel is fixedly connected with the other end of the gear assembly; and the gear assembly is arranged to enable the movement directions of the first flywheel and the second flywheel to be opposite. The manual interlocking device ensures that two paths of power supplies are not switched on at the same time, and avoids the situation that the power supplies are connected in parallel to supply power to lower-end equipment to cause over-current damage to the equipment; and compared with an automatic switching double-power-supply interlocking device, the device is simple to install, can be compatible with different air switches, and has more advantages in cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of power accessories, and in particular relates to a manual interlocking device and a switch component thereof. Background Art

[0002] With the increasing demand for power reliability in society, ensuring that equipment can obtain continuous and stable power supply and reducing the risk of equipment downtime caused by single power failure has become an important challenge. In this context, dual power input technology has emerged, which is designed to improve the stability of the system through redundant power configuration. However, in order to avoid the two power supplies being connected at the same time, forming a potential power parallel connection, which may cause equipment damage, a dual power interlocking protection mechanism is usually integrated. Automatic dual power interlocking devices usually use relays and contactors to achieve automatic switching of circuits, or use integrated automatic transfer switches (Automatic Transfer Switching, ATS) to complete this function. Although automatic dual power interlocking devices have their advantages in certain application scenarios, they generally have shortcomings such as large size, complex structure, and high cost. This limits their application in specific occasions to a certain extent, such as the need to switch between solar energy and electric energy for water heaters in residential homes, temporary maintenance construction on construction sites, and the need to frequently manually switch power inputs when debugging products during factory production. Furthermore, the existing dual power interlocking device has low precision in synchronous movement, and it is easy for the switching to fail, resulting in the two switching power supplies being turned on or off at the same time. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a manual interlocking device and a switch component thereof with low cost, convenient installation, high compatibility and reliability, which can improve the accuracy and synchronization of dual power supply actions, perform effective conversion and interlocking between the dual power supplies, and prevent the dual power switch from failing to switch successfully when the power switch is switched, thereby causing the two switching power supplies to be turned on or off at the same time.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0005] A manual interlocking device, comprising:

[0006] A housing assembly having a mounting cavity therein;

[0007] A gear assembly, fixedly mounted in the mounting cavity;

[0008] a first flywheel connected to the first switch, wherein the first flywheel is fixedly connected to one end of the gear assembly;

[0009] a second flywheel connected to the second switch, wherein the second flywheel is fixedly connected to the other end of the gear assembly;

[0010] The gear assembly is configured to cause the first flywheel and the second flywheel to move in opposite directions.

[0011] Further, the gear assembly includes a first bevel gear, a second bevel gear and a third bevel gear, the first bevel gear and the second bevel gear are arranged opposite to each other, the third bevel gear is arranged between the first bevel gear and the second bevel gear, the first bevel gear, the third bevel gear and the second bevel gear are meshed and connected together in sequence; the first bevel gear and the first flywheel are rigidly connected together, and the second bevel gear and the second flywheel are rigidly connected together.

[0012] Furthermore, the gear assembly also includes a first transmission shaft and a second transmission shaft, the first flywheel and the first bevel gear are sleeved on the first transmission shaft, and the first flywheel, the first bevel gear and the first transmission shaft are rigidly connected together; the second flywheel and the second bevel gear are sleeved on the second transmission shaft, and the second flywheel, the second bevel gear and the second transmission shaft are rigidly connected together.

[0013] Furthermore, a first axial hole and a first notch are formed at the axis of the first flywheel; a first protrusion is formed on the first transmission shaft; the first transmission shaft is passed through the first axial hole, and the first protrusion is clamped in the first notch; a second axial hole and a second notch are formed at the axis of the second flywheel; a second protrusion is formed on the second transmission shaft; the second transmission shaft is passed through the second axial hole, and the second protrusion is clamped in the second notch.

[0014] Furthermore, a third axial hole and a third notch are formed at the axis center of the first bevel gear, the first transmission shaft is also inserted into the first axial hole, and the first protrusion is also clamped in the first notch; a fourth axial hole and a fourth notch are formed at the axis center of the second bevel gear, the second transmission shaft is also inserted into the second axial hole, and the second protrusion is also clamped in the second notch.

[0015] Furthermore, the gear assembly also includes a safety shaft, which is connected to the third bevel gear and is configured to cause the third bevel gear to disengage from the first bevel gear and the second bevel gear when the safety shaft is pushed.

[0016] Furthermore, the gear assembly also includes an elastic member; the middle portion of the safety shaft is inserted into the third bevel gear, one end protrudes outside the housing assembly, and the other end is connected to one end of the elastic member; the other end of the elastic member abuts against the housing assembly.

[0017] Furthermore, the first flywheel is provided with a first limiting groove for cooperating with the first switch; and the second flywheel is provided with a second limiting groove for cooperating with the second switch.

[0018] Furthermore, the housing assembly includes a protective cover and a base, and the protective cover and the base are detachably connected together.

[0019] Furthermore, the housing assembly further comprises a card plate, the card plate is slidably mounted on the base, the base is detachably mounted on the guide rail, and the card plate is configured to abut against the guide rail.

[0020] A switch assembly comprises the above-mentioned manual interlocking device, a first switch and a second switch, wherein the manual interlocking device is arranged between the first switch and the second switch, the first switch is connected to the first flywheel, and the second switch is connected to the second flywheel.

[0021] Beneficial effects of the utility model:

[0022] The manual interlocking device ensures that the dual power supplies will not be connected at the same time, avoiding the formation of parallel power supply for the lower-end equipment, causing overcurrent damage to the equipment; it can also avoid current damage caused by voltage differences between the two input power supplies, as well as the occurrence of increased beat frequency, voltage fluctuations, and phase differences; and compared with the automatic switching dual power interlocking device, this device is simple to install, compatible with different air switches, and has more cost advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an exploded schematic diagram of a manual interlocking device of the utility model in one embodiment;

[0024] Figure 2 It is a front view of the switch assembly of the utility model in one state;

[0025] Figure 3 It is a front view of the switch assembly of the utility model in another state;

[0026] Figure 4 It is an exploded schematic diagram of a housing assembly of the utility model in one embodiment;

[0027] Figure 5 It is an exploded schematic diagram of a gear assembly of the utility model in one embodiment;

[0028] Figure 6 It is a three-dimensional schematic diagram of a gear assembly of the utility model in one embodiment;

[0029] Figure 7It is a three-dimensional schematic diagram of the protective cover, the gear assembly, the first flywheel and the second flywheel of the utility model in one embodiment;

[0030] Figure 8 It is a front view of the gear assembly of the utility model in one state;

[0031] Fig. 9 It is a front view of the gear assembly of the present invention in another state.

[0032] Reference numerals include:

[0033] 10—Manual interlock device 100—Housing assembly

[0034] 110—protective cover 111—card slot 120—base

[0035] 121 - buckle 122 - guide groove 130 - card plate

[0036] 140—installation cavity 200—gear assembly 210—first transmission shaft

[0037] 211 - first protrusion 220 - second transmission shaft 221 - second protrusion

[0038] 230—first bevel gear 231—third shaft hole 240—second bevel gear

[0039] 241—fourth shaft hole 242—fourth notch 250—third bevel gear

[0040] 260—safety shaft 270—elastic member 310—first flywheel

[0041] 311 - first shaft hole 312 - first notch 313 - first limiting groove

[0042] 320 - second flywheel 321 - second shaft hole 322 - second notch

[0043] 323—second limit groove 20—first switch 30—second switch DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] Please refer to Figure 1-Figure 3 , which is a preferred embodiment of the utility model, discloses a switch assembly including a manual interlocking device 10, a first switch 20 and a second switch 30. Figure 2 and Figure 3 The manual interlocking device 10 is arranged between the first switch 20 and the second switch 30, that is, the first switch 20, the manual interlocking device 10 and the second switch 30 are arranged in a row in sequence. The first switch 20 is connected to the first flywheel 310, and the second switch 30 is connected to the second flywheel 320.

[0049] Assume that the first switch 20 is used to control the on and off of the main power supply, and the second switch 30 is used to control the on and off of the backup power supply. Figure 2 As shown, the first switch 20 is in a closed state (handle facing upward), the second switch 30 is in an open state (handle facing downward), and the first flywheel 310 and the second flywheel 320 are respectively stuck on the handles of the first switch 20 and the second switch 30. When the handle of the second switch 30 is manually moved from bottom to top, the first flywheel 310 of the manual interlocking device 10 moves downward, driving the handle of the first switch 20 to change its position from top to bottom. Figure 3As shown, at this time, the first switch 20 of the main power supply changes from a closed state to an open state, and the second switch 30 of the backup power supply changes from an open state to a closed state, completing the switching of the dual power supplies.

[0050] Please refer to Figure 1 , which is another preferred embodiment of the utility model, discloses a manual interlocking device 10, comprising: a housing component 100, which has an installation cavity 140 inside; a gear component 200, which is fixedly installed in the installation cavity 140; a first flywheel 310 for connecting with a first switch 20, wherein the first flywheel 310 is fixedly connected with one end of the gear component 200; a second flywheel 320 for connecting with a second switch 30, wherein the second flywheel 320 is fixedly connected with the other end of the gear component 200; and the gear component 200 is configured so that the movement directions of the first flywheel 310 and the second flywheel 320 are opposite. The above-mentioned components are further described in detail below.

[0051] like Figure 1 and Figure 4 As shown, the housing assembly 100 includes a protective cover 110 and a base 120. Preferably, the protective cover 110 is integrally formed using ABS injection molding, and has flame retardant properties and good mechanical strength. When different switches are used in conjunction, the protective cover 110 can be replaced to match the different handle positions of a variety of switches. Preferably, the base 120 is also integrally formed using ABS injection molding, and has flame retardant properties and good mechanical strength. The four parallel hole positions in the base 120 can use different installation positions according to different brands of air switches to match the different handle positions of a variety of switches.

[0052] The protective cover 110 is provided with a slot 111, and the base 120 is provided with a buckle 121. The slot 111 cooperates with the buckle 121 to detachably connect the protective cover 110 and the base 120. After the protective cover 110 and the base 120 are buckled together, a mounting cavity 140 is formed between the two. Of course, it is understandable that the mounting positions of the slot 111 and the buckle 121 can be swapped; or the protective cover 110 and the base 120 are installed with screws or other structures that facilitate disassembly and assembly.

[0053] like Figure 1As shown, the housing assembly 100 also includes a card plate 130, which is slidably mounted on the base 120, and the manual interlocking device can be loaded and unloaded by plugging and unplugging the card plate 130. Specifically, a guide rail groove 122 is provided on the back plate of the base 120, and the guide rail groove 122 can be sleeved on the guide rail, and the base 120 is detachably mounted on the guide rail (not shown in the figure) through the guide rail groove 122. When the base 120 is mounted on the guide rail, the card plate 130 is configured to resist the guide rail so that the base 120 is tightly connected to the guide rail. Before installing the manual interlocking device 10, first pull out the card plate 130, then hang the manual interlocking device 10 on the guide rail, and finally install the card plate 130 to complete the installation. Preferably, the card plate 130 is integrally formed using ABS injection molding, which has flame retardant properties and good mechanical strength.

[0054] like Figure 5 and Figure 6 As shown, in one embodiment of the present application, the gear assembly 200 includes a first bevel gear 230, a second bevel gear 240 and a third bevel gear 250. The first bevel gear 230 is arranged opposite to the second bevel gear 240, and the third bevel gear 250 is arranged between the first bevel gear 230 and the second bevel gear 240. The first bevel gear 230, the third bevel gear 250 and the second bevel gear 240 are meshed and connected together in sequence. Figure 1 As shown, the first bevel gear 230 is rigidly connected to the first flywheel 310, and the second bevel gear 240 is rigidly connected to the second flywheel 320. Since the transmission accuracy requirement of the gear assembly 200 is not high, the number of teeth of the first bevel gear 230, the second bevel gear 240 and the third bevel gear 250 are selected to be 16, the tooth shape is selected to be trapezoidal, and the material is cast iron, which ensures the transmission performance while reducing the material cost.

[0055] In another embodiment of the present application, the gear assembly 200 further includes a first transmission shaft 210 and a second transmission shaft 220. The first flywheel 310 and the first bevel gear 230 are sleeved on the first transmission shaft 210, and the first flywheel 310, the first bevel gear 230 and the first transmission shaft 210 are rigidly connected together. The second flywheel 320 and the second bevel gear 240 are sleeved on the second transmission shaft 220, and the second flywheel 320, the second bevel gear 240 and the second transmission shaft 220 are rigidly connected together.

[0056] Since the first flywheel 310, the first bevel gear 230 and the first transmission shaft 210 are coaxially rigidly connected, they have the same direction of movement. Similarly, the second flywheel 320, the second bevel gear 240 and the second transmission shaft 220 are also coaxially rigidly connected and have the same direction of movement. The first bevel gear 230, the second bevel gear 240 and the third bevel gear 250 are meshed and connected in sequence, and have transmission characteristics. The setting of the third bevel gear 250 makes the first bevel gear 230 and the second bevel gear 240 rotate in opposite directions, so that the first flywheel 310 and the second flywheel 320 move in opposite directions. Figure 6 As shown, when the handle of the second switch 30 is manually changed from bottom to top, the second flywheel 320 is driven to move upward. Due to the above-mentioned rigid connection and gear meshing, the first flywheel 310 moves downward, driving the handle of the first switch 20 to change its position from top to bottom.

[0057] Specifically, the first flywheel 310 and the first transmission shaft 210 are rigidly connected through the following specific implementations: Figure 7 As shown, the axis of the first flywheel 310 is provided with a first shaft hole 311 and a first notch 312. Correspondingly, the first transmission shaft 210 is provided with a first protrusion 211. The first transmission shaft 210 is inserted into the first shaft hole 311, and the first protrusion 211 is clamped in the first notch 312. In this way, the first flywheel 310 can drive the first transmission shaft 210 to rotate coaxially.

[0058] The second flywheel 320 and the second transmission shaft 220 are rigidly connected by the following specific implementations: Figure 6 and Figure 7 As shown, the axis of the second flywheel 320 is provided with a second shaft hole 321 and a second notch 322. Correspondingly, the second transmission shaft 220 is provided with a second protrusion 221. The second transmission shaft 220 is inserted into the second shaft hole 321, and the second protrusion 221 is clamped in the second notch 322. In this way, the second flywheel 320 can drive the second transmission shaft 220 to rotate coaxially.

[0059] The first bevel gear 230 and the first transmission shaft 210 are rigidly connected by the following specific implementations: Figure 7 As shown, the axis of the first bevel gear 230 is provided with a third shaft hole 231 and a third notch (not shown in the figure). Accordingly, the first transmission shaft 210 is also inserted into the first shaft hole 311, and the first protrusion 211 is also stuck in the first notch 312. With such a configuration, the first flywheel 310 can drive the first transmission shaft 210 and the first bevel gear 230 to rotate coaxially.

[0060] The second bevel gear 240 and the second transmission shaft 220 are rigidly connected by the following specific implementation: Figure 7 As shown, the axis of the second bevel gear 240 is provided with a fourth shaft hole 241 and a fourth notch 242. Accordingly, the second transmission shaft 220 is also inserted into the second shaft hole 321, and the second protrusion 221 is also stuck in the second notch 322. With this arrangement, the second flywheel 320 can drive the second transmission shaft 220 and the second bevel gear 240 to rotate coaxially.

[0061] like Figure 5 , Figure 6 and Figure 8 As shown, in one embodiment of the present application, the manual interlocking device 10 is provided with a double-way full-break function. Specifically, the gear assembly 200 further includes a safety shaft 260. The safety shaft 260 is connected to the third bevel gear 250. The safety shaft 260 is configured to disengage the third bevel gear 250 from the first bevel gear 230 and the second bevel gear 240 when the safety shaft 260 is pushed.

[0062] In another embodiment of the present application, the gear assembly 200 further includes an elastic member 270, which may be a spring. Specifically, the middle portion of the safety shaft 260 is inserted into the third bevel gear 250, one end of the safety shaft 260 protrudes outside the housing assembly 100, and the other end is connected to one end of the elastic member 270. The other end of the elastic member 270 abuts against the base 120 of the housing assembly 100.

[0063] When the first switch 20 and the second switch 30 need to be disconnected at the same time, the safety shaft 260 can be pressed. Fig. 9 As shown, the elastic member 270 is compressed and shortened, and the third bevel gear 250 and the safety shaft 260 move toward the base 120, thereby disengaging the first bevel gear 230 from the meshing with the second bevel gear 240. The first bevel gear 230, the second bevel gear 240 and the third bevel gear 250 can rotate arbitrarily around their respective axes, so the movements of the first flywheel 310 and the second flywheel 320 are no longer related, and the first flywheel 310 and the second flywheel 320 can be pushed downward at the same time.

[0064] The first flywheel 310 is provided with a first limiting groove 313 for cooperating with the first switch 20, and the handle of the first switch 20 can be inserted into the first limiting groove 313. The second flywheel 320 is provided with a second limiting groove 323 for cooperating with the second switch 30, and the handle of the second switch 30 can be inserted into the second limiting groove 323.

[0065] The first flywheel 310 and the second flywheel 320 are two identical parts, preferably integrally formed by ABS injection molding. In actual use, the first flywheel 310 with a first limiting groove 313 of different depths or the second flywheel 320 with a second limiting groove 323 of different depths can be replaced according to different brands of switches to match handles of different lengths of various switches.

[0066] The manual interlocking device 10 ensures that the dual power supplies will not be connected at the same time, avoiding the situation where the power supply is connected in parallel to supply power to the lower-end equipment, causing overcurrent damage to the equipment; it can also avoid the current damage caused by the voltage difference between the two input power supplies, as well as the occurrence of beat frequency, voltage fluctuation, and phase difference increase. Compared with the automatic switching dual power interlocking device, this device is easy to install, compatible with different air switches, and has a more cost-effective.

[0067] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A manual interlocking device, characterized in that: include: A housing assembly (100) having a mounting cavity (140) disposed therein; A gear assembly (200) is fixedly mounted in the mounting cavity (140); a first flywheel (310) used to be connected to the first switch (20), wherein the first flywheel (310) is fixedly connected to one end of the gear assembly (200); a second flywheel (320) for connecting to the second switch (30), wherein the second flywheel (320) is fixedly connected to the other end of the gear assembly (200); The gear assembly (200) is configured to make the movement directions of the first flywheel (310) and the second flywheel (320) opposite.

2. The manual interlocking device according to claim 1, characterized in that: The gear assembly (200) comprises a first bevel gear (230), a second bevel gear (240) and a third bevel gear (250); the first bevel gear (230) and the second bevel gear (240) are arranged opposite to each other, the third bevel gear (250) is arranged between the first bevel gear (230) and the second bevel gear (240); the first bevel gear (230), the third bevel gear (250) and the second bevel gear (240) are meshed and connected together in sequence; the first bevel gear (230) and the first flywheel (310) are rigidly connected together, and the second bevel gear (240) and the second flywheel (320) are rigidly connected together.

3. The manual interlocking device according to claim 2, characterized in that: The gear assembly (200) further comprises a first transmission shaft (210) and a second transmission shaft (220); the first flywheel (310) and the first bevel gear (230) are sleeved on the first transmission shaft (210); the first flywheel (310), the first bevel gear (230) and the first transmission shaft (210) are rigidly connected together; the second flywheel (320) and the second bevel gear (240) are sleeved on the second transmission shaft (220); the second flywheel (320), the second bevel gear (240) and the second transmission shaft (220) are rigidly connected together.

4. The manual interlocking device according to claim 3, characterized in that: The first flywheel (310) has a first shaft hole (311) and a first notch (312) at its axis; the first transmission shaft (210) has a first protrusion (211); the first transmission shaft (210) is inserted into the first shaft hole (311), and the first protrusion (211) is locked in the first notch (312); the second flywheel (320) has a second shaft hole (321) and a second notch (322) at its axis; the second transmission shaft (220) has a second protrusion (221); the second transmission shaft (220) is inserted into the second shaft hole (321), and the second protrusion (221) is locked in the second notch (322).

5. The manual interlocking device according to claim 4, characterized in that: The axis of the first bevel gear (230) is provided with a third shaft hole (231) and a third notch, the first transmission shaft (210) is also inserted into the first shaft hole (311), and the first protrusion (211) is also clamped in the first notch (312); the axis of the second bevel gear (240) is provided with a fourth shaft hole (241) and a fourth notch (242), the second transmission shaft (220) is also inserted into the second shaft hole (321), and the second protrusion (221) is also clamped in the second notch (322).

6. The manual interlocking device according to claim 2, characterized in that: The gear assembly (200) further comprises a safety shaft (260), wherein the safety shaft (260) is connected to the third bevel gear (250) and is configured to cause the third bevel gear (250) to disengage from the first bevel gear (230) and the second bevel gear (240) when the safety shaft (260) is pushed.

7. The manual interlocking device according to claim 6, characterized in that: The gear assembly (200) further comprises an elastic member (270); the middle portion of the safety shaft (260) is inserted into the third bevel gear (250), one end of the safety shaft (260) is protruded outside the housing assembly (100), and the other end is connected to one end of the elastic member (270); the other end of the elastic member (270) abuts against the housing assembly (100).

8. The manual interlocking device according to any one of claims 1 to 7, characterized in that: The first flywheel (310) is provided with a first limiting groove (313) for cooperating with the first switch (20); and the second flywheel (320) is provided with a second limiting groove (323) for cooperating with the second switch (30).

9. The manual interlocking device according to claim 1, characterized in that: The housing assembly (100) comprises a protective cover (110) and a base (120), wherein the protective cover (110) and the base (120) are detachably connected together.

10. The manual interlocking device according to claim 9, characterized in that: The housing assembly (100) further comprises a card plate (130), wherein the card plate (130) is slidably mounted on the base (120), the base (120) is detachably mounted on a guide rail, and the card plate (130) is configured to abut against the guide rail.

11. A switch assembly, characterized in that: The invention comprises a manual interlocking device (10) as described in any one of claims 1 to 10, a first switch (20) and a second switch (30), wherein the manual interlocking device (10) is arranged between the first switch (20) and the second switch (30), the first switch (20) is connected to the first flywheel (310), and the second switch (30) is connected to the second flywheel (320).

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