Protective structure

Abstract

The utility model discloses a protection structure which is characterized in that a housing is provided with an accommodating cavity, the top surface of the housing is provided with a gear hole, and the gear hole is communicated with the accommodating cavity; the first shielding plate slides relative to the gear hole, and the first shielding plate is provided with a first through hole and a first shielding part; the second shielding plate slides relative to the gear hole, and the second shielding plate is provided with a second through hole and a second shielding part; the handle comprises a body part and a handle part, the body part is contained in the containing cavity and located below the first shielding plate, and the handle part penetrates through the first through hole, the second through hole and the gear hole and extends to the outside; when the handle rotates, the body part, the first shielding part and the second shielding part are matched to seal the gear hole; according to the structure, in the rotating process of the handle, the first shielding plate and the second shielding plate are matched to form a staggered structure, the effect of closing the gear holes is achieved, the top face of the containing cavity is always in a closed state at the three gear positions, and foreign matter or dust is not prone to entering the containing cavity.

Description

A protective structure Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to a protective structure. Background Technology

[0002] For example, Chinese invention patent publication number CN117253728A, entitled "An Operating Mechanism and Dual Power Automatic Transfer Switch for Dual Power Supply," discloses a dual power supply transfer switch. The dual power supply transfer switch includes a normal power position, a backup power position, and a zero position (i.e., off position). However, in the prior art, as shown in the attached drawings of the aforementioned patent, a long slot is provided on the top surface of the housing. A first connecting rod passes through the long slot and engages with a handle. Rotating the handle drives the first connecting rod to move, thus achieving the switching between positions.

[0003] The problem with this structure is that the handle cannot completely cover the elongated hole during rotation, resulting in a large gap between the elongated hole and the handle. Foreign objects or dust can pass through the gap and enter the interior of the housing. Over time, this poses a significant safety hazard. Moreover, the internal structure can be observed with the naked eye, affecting the overall aesthetics. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is how to improve the protection between the handle and the housing. To this end, a protective structure is provided, comprising...

[0005] The housing has a receiving cavity, and a stop hole is provided on the top surface of the housing, which communicates with the receiving cavity;

[0006] A first shielding plate is housed in the receiving cavity and slides relative to the gear hole. The first shielding plate is provided with a first through hole and a first shielding part.

[0007] The second shield is housed in the receiving cavity and slides relative to the stop hole. The second shield has a second through hole and a second shielding part. The second shield is located above the first shield.

[0008] The handle includes a body portion and a handle portion. The body portion is housed in the receiving cavity and is located below the first shielding plate. The handle portion extends to the outside through the first through hole, the second through hole, and the gear position hole. When the handle is rotated, the body portion, the first shielding portion, and the second shielding portion cooperate to close the gear position hole.

[0009] The inner wall of the receiving cavity is provided with a guide groove, the second baffle plate is fitted with the guide groove, and the stop hole passes through the guide groove.

[0010] Limiting parts are provided on both sides of the guide groove.

[0011] It also includes an operating mechanism and a first link, one end of which is connected to the main body and the other end of which is connected to the operating mechanism.

[0012] One of the first connecting rod and the body part is provided with a fixing part, and the other of the first connecting rod and the body part is provided with a fixing hole that cooperates with the fixing part.

[0013] It also includes a first electromagnetic mechanism, a second electromagnetic mechanism, and a linkage component. The first electromagnetic mechanism includes a first push rod, and the second electromagnetic mechanism includes a second push rod. The first push rod is connected to one end of the linkage component, and the second push rod is connected to the other end of the linkage component. The linkage component is provided with a guide hole, and the first connecting rod passes through the guide hole and is connected to the operating mechanism. The inner wall of the guide hole is located on the movement trajectory of the first connecting rod.

[0014] The operating mechanism includes a rotating shaft, and the other end of the first connecting rod is connected to the rotating shaft.

[0015] The inner wall of the receiving cavity is provided with a positioning hole, one end of the rotating shaft extends to the positioning hole, and the other end of the rotating shaft extends through the housing to the outside.

[0016] The portion of the rotating shaft extending to the outside of the housing is provided with a cam portion, and a limiting block is provided on the side wall of the housing, with the limiting block located on the movement trajectory of the cam portion.

[0017] The technical solution of this utility model has the following advantages:

[0018] 1. The present invention provides a protective structure in which, during the rotation of the handle, the first baffle plate and the second baffle plate cooperate to form a mutually staggered structure, thereby achieving the effect of sealing the gear hole. This ensures that the top surface of the receiving cavity is always in a closed state in the three gear positions, making it difficult for foreign objects or dust to enter the receiving cavity.

[0019] 2. The protective structure provided by this utility model has a guide groove that creates a guiding effect and improves the sliding effect of the second baffle.

[0020] 3. The protective structure provided by this utility model has a limiting part that forms a limiting effect to prevent the second baffle, the first baffle, and the handle from shifting during rotation.

[0021] 4. The protective structure provided by this utility model has a first connecting rod that enables linkage between the handle and the operating mechanism, making the transmission more stable.

[0022] 5. The protective structure provided by this utility model has a plug-in connection between the handle and the first connecting rod, which forms a fixed connection between the two, making installation convenient. At the same time, the first connecting rod forms a supporting and fixing effect, so that the handle, the first cover plate, and the second cover plate will not move up and down in the vertical direction.

[0023] 6. The protective structure provided by this utility model has a first electromagnetic mechanism and a second electromagnetic mechanism that are automatically controlled, that is, electrically controlled. The switching of different states is achieved by the action of the first electromagnetic mechanism or the second electromagnetic mechanism. Compared with the drive structure of the motor, the electromagnetic structure is simpler.

[0024] 7. The protective structure provided by this utility model has a positioning hole, which makes the installation of the rotating shaft more convenient.

[0025] 8. The protective structure provided by this utility model has a limiting block that creates a synchronous limiting effect to prevent the rotating shaft from rotating excessively. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 is a schematic diagram of a protective structure provided by this utility model;

[0028] Figure 2 is a cross-sectional view of a protective structure provided by this utility model;

[0029] Figure 3 is a cross-sectional view of a protective structure provided by this utility model from another angle;

[0030] Figure 4 is a partial cross-sectional view of the handle provided by this utility model in cooperation with the first baffle and the second baffle during rotation.

[0031] Figure 5 is a partial cross-sectional view of the handle provided by this utility model in cooperation with the first baffle and the second baffle during rotation.

[0032] Figure 6 is a structural schematic diagram of another position where the handle, the first cover plate, and the second cover plate of this utility model are combined;

[0033] Figure 7 is an exploded view of the handle, the first baffle, and the second baffle provided by this utility model;

[0034] Figure 8 is a partial structural schematic diagram of a protective structure provided by this utility model;

[0035] Figure 9 is a partial structural schematic diagram of the shell provided by this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 11. Housing; 12. First baffle plate; 13. Second baffle plate; 14. Handle; 15. First connecting rod; 16. Fixing part; 17. Fixing hole; 18. First electromagnetic mechanism; 19. Second electromagnetic mechanism; 20. Linkage component; 21. Rotating shaft; 22. Circuit board; 111. Receiving cavity; 112. Gear hole; 113. Guide groove; 114. Limiting part; 115. Positioning hole; 116. Limiting block; 121. First through hole; 122. First baffle part; 131. Second through hole; 132. Second baffle part; 141. Body part; 142. Handle part; 143. Fixing post; 181. First push rod; 191. Second push rod; 201. Guide hole; 211. Cam part. Detailed Implementation

[0038] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0042] Example 1

[0043] This embodiment provides a protective structure, as shown in Figures 1-9, including:

[0044] The housing 11 has a receiving cavity 111 and a stop hole 112 on its top surface, which communicates with the receiving cavity 111.

[0045] A first baffle plate 12 is housed in a receiving cavity 111 and slides relative to a stop hole 112. The first baffle plate 12 has a first through hole 121 and a first blocking portion 122. The size of the first through hole 121 is adjusted according to actual needs. In this embodiment, the first baffle plate 12 has only one first through hole 121, and the rest is the first blocking portion 122.

[0046] The second baffle plate 13 is housed in the receiving cavity 111 and slides relative to the gear position hole 112. The second baffle plate 13 has a second through hole 131 and a second blocking portion 132. The size of the second through hole 131 is adjusted according to actual needs. In this embodiment, the second baffle plate 13 has only one second through hole 131, and the rest is the second blocking portion 132. The cross-sectional area of ​​the second baffle plate 13 is larger than the cross-sectional area of ​​the gear position hole 112. That is to say, when the second baffle plate 13 does not have the second through hole 131, the second baffle plate 13 can completely close the gear position hole 112. The second baffle plate 13 is located above the first baffle plate 12. It should be noted that the second baffle plate 13 and the first baffle plate 12 are fitted together and slide relative to each other.

[0047] The handle 14 includes a body 141 and a handle 142. The handle 142 is connected to the top surface of the body 141. The handle 14 can be a one-piece structure or a separate structure, which can be adjusted according to actual needs by those skilled in the art. The body 141 is housed in the receiving cavity 111 and is located below the first baffle plate 12. At this time, the body 141, the first baffle plate 12, and the second baffle plate 13 are overlapped, and the first baffle plate 12 is located between the body 141 and the second baffle plate 13, and the three slide relative to each other. The handle 142 extends to the outside through the first through hole 121, the second through hole 131, and the gear position hole 112. Here, "outside" specifically refers to the top of the entire structure. The operator can control the movement of the handle 142 to achieve the effect of switching between gears. It should be noted that the handle 142 moves relative to the gear position hole 112 and has three positions, corresponding to the normal power position, the backup power position, and the zero position, respectively. Typically, the zero position is located between the normal power position and the backup power position. Those skilled in the art can also adjust this according to actual needs. When the handle 14 rotates, the body 141, the first shield 122, and the second shield 132 cooperate to close the gear position hole 112. With this structural arrangement, during rotation, the handle 14, through the cooperation of the first shield 12 and the second shield 13, forms a mutually offset structure, achieving the effect of closing the gear position hole 112. This ensures that the top surface of the receiving cavity 111 remains closed in all three gear positions, making it difficult for foreign objects or dust to enter the receiving cavity 111.

[0048] Specifically, as shown in Figure 9, the inner wall of the receiving cavity 111 is provided with a guide groove 113, which is located on the inner wall of the top surface of the receiving cavity 111. The second baffle plate 13 fits into the guide groove 113, and the stop hole 112 passes through the guide groove 113. The guide groove 113 provides a guiding effect, improving the sliding effect of the second baffle plate 13. Alternatively, other guiding structures can be used, such as a protrusion and a groove working together to form a guide.

[0049] Specifically, as shown in Figure 9, limiting parts 114 are provided on both sides of the guide groove 113. The limiting parts 114 are provided to create a limiting effect and prevent the second baffle 13, the first baffle 12, and the handle 14 from shifting during rotation.

[0050] Specifically, as shown in Figures 3-5, in this embodiment, the main body 141, the first baffle plate 12, and the second baffle plate 13 are all arc-shaped. The guide groove 113 is also arc-shaped. Alternatively, the main body 141, the first baffle plate 12, and the second baffle plate 13 can also be flat, meaning that the main body 141, the first baffle plate 12, and the second baffle plate 13 slide horizontally relative to the stop hole 112.

[0051] Specifically, it may also include a third or even a fourth shield, with multiple shields working together to achieve a shielding and protective effect. Those skilled in the art can adjust the number of shields according to actual needs.

[0052] Specifically, its working principle is as follows: As shown in Figure 3, in the normal power position, the handle 14 is located near the right side of the gear hole 112. After the movement is completed, the uppermost second shield 132 closes the gear hole 112. At this time, only the second through hole 131 on the second shield 13 is connected to the gear hole 112. The first shield 122 of the middle first shield 12 closes part of the second through hole 131. At this time, the first through hole 121, the second through hole 131, and the gear hole 112 are connected. Finally, the first through hole 121 is closed through the left side of the body part 141 to achieve overall sealing and protection, preventing foreign objects or dust from entering the receiving cavity 111.

[0053] For example, as shown in Figure 4, the zero position is achieved when the handle 14 is rotated counterclockwise, at which point the handle 14 is located in the middle area of ​​the gear position hole 112. It should be noted that during the rotation of the handle 14, the handle 142 moves to abut against the side wall of the first through hole 121, which also drives the first baffle plate 12 to rotate counterclockwise at the same time. After the movement is completed, the first through hole 121, the second through hole 131, and the gear position hole 112 are connected. Finally, the first through hole 121 is closed through the right side area of ​​the body part 141, achieving overall sealing and protection to prevent foreign objects or dust from entering the receiving cavity 111.

[0054] For example, as shown in Figure 5, in the backup power position device, the handle 14 continues to rotate counterclockwise. At this time, the handle 14 is located in the left area of ​​the gear position hole 112. It should be noted that during the rotation of the handle 14, the handle 142 continues to drive the first baffle plate 12 to rotate counterclockwise. When the handle 142 moves to abut against the side wall of the second through hole 131, the handle 142 also drives the second baffle plate 13 to rotate counterclockwise at the same time. At this time, the handle 14, the first baffle plate 12, and the second baffle plate 13 move simultaneously. After the movement is completed, the first through hole 121, the second through hole 131, and the gear position hole 112 are connected. Finally, the first through hole 121 is closed by the right area of ​​the body part 141, achieving overall sealing and protection to prevent foreign objects or dust from entering the receiving cavity 111. Conversely, when the handle 14 rotates clockwise, the same principle is applied to achieve the sealing and protection effect.

[0055] Specifically, as shown in Figures 3 and 8, the system also includes an operating mechanism and a first connecting rod 15. One end of the first connecting rod 15 is connected to the main body 141, and the other end is connected to the operating mechanism. When the handle 14 moves, it drives the first connecting rod 15 to move, ultimately realizing the action of the operating mechanism. The first connecting rod 15 enables the linkage between the handle 14 and the operating mechanism, making the transmission more stable.

[0056] Specifically, as shown in Figure 3, one of the first connecting rod 15 and the body part 141 is provided with a fixing part 16, and the other of the first connecting rod 15 and the body part 141 is provided with a fixing hole 17 that mates with the fixing part 16. The handle 14 and the first connecting rod 15 are connected by a plug-in type, forming a fixed connection between the two, which makes installation convenient. At the same time, the first connecting rod 15 provides a supporting and fixing effect, so that the handle 14, the first baffle plate 12, and the second baffle plate 13 will not move up and down in the vertical direction. In this embodiment, the bottom surface of the body part 141 is provided with a fixing post 143, and the fixing hole 17 is provided in the fixing post 143, but the fixing hole 17 does not penetrate the body part 141. The first connecting rod 15 is provided with a fixing part 16, which is embedded in the fixing hole 17 to form a fixing effect. Here, in order to improve the fixing strength, the fixing part 16 and the fixing hole 17 can also be an interference fit. In addition, the first connecting rod 15 and the body part 141 can also be connected by bolts or other connection methods.

[0057] Specifically, as shown in Figures 3 and 8, the system also includes a first electromagnetic mechanism 18, a second electromagnetic mechanism 19, and a linkage 20. The first electromagnetic mechanism 18 includes a first push rod 181, and the second electromagnetic mechanism 19 includes a second push rod 191. The first push rod 181 is connected to one end of the linkage 20, and the second push rod 191 is connected to the other end of the linkage 20. The first push rod 181 and the second push rod 191 move relative to each other. The linkage 20 has a guide hole 201, through which a first connecting rod 15 passes and connects to the operating mechanism. The inner wall of the guide hole 201 is located on the movement trajectory of the first connecting rod 15. The first electromagnetic mechanism 18 and the second electromagnetic mechanism 19 are automatically controlled, i.e., electrically controlled. Different states are switched by the action of the first electromagnetic mechanism 18 or the second electromagnetic mechanism 19. Compared with the drive structure of a motor, the electromagnetic structure is simpler.

[0058] Specifically, the operating mechanism includes a rotating shaft 21, with the other end of the first connecting rod 15 connected to the rotating shaft 21. The rotating shaft 21 and the first connecting rod 15 can be fixed by a plug-in connection, a bolt connection, or other connection methods.

[0059] Specifically, the inner wall of the receiving cavity 111 is provided with a positioning hole 115. One end of the rotating shaft 21 extends to the positioning hole 115, and the other end of the rotating shaft 21 extends through the housing 11 to the outside. The positioning hole 115 makes the installation of the rotating shaft 21 more convenient. Here, the outside specifically refers to the chamber adjacent to the housing 11, which is used to accommodate the contact structure. Those skilled in the art should be familiar with the corresponding structure, so it is not shown in the accompanying drawings.

[0060] Specifically, as shown in Figure 1, the portion of the rotating shaft 21 extending to the outside of the housing 11 is provided with a cam portion 211, and a limiting block 116 is provided on the side wall of the housing 11. The limiting block 116 is located on the movement trajectory of the cam portion 211. The setting of the limiting block 116 forms a synchronous limiting effect, preventing the rotating shaft 21 from rotating excessively.

[0061] Specifically, as shown in Figure 8, a circuit board 22 is also fixed inside the receiving cavity 111. The circuit board 22 is electrically connected to the first electromagnetic mechanism 18 and the second electromagnetic mechanism 19. The circuit board 22 can receive signals to control the operation of the first electromagnetic mechanism 18 and the second electromagnetic mechanism 19. The communication method here can be RS485 communication, wireless communication, local area network, 4G / 5G mobile network technology, Ethernet, etc.

[0062] Specifically, in this embodiment, the housing 11 is only the structure of the control compartment of the dual power transfer switch. The dual power transfer switch also includes a contact structure, which is located in a cavity adjacent to the housing 11. The cam part 211 is located in the adjacent cavity and cooperates with the contact structure. This is prior art, so it will not be described in detail in this embodiment.

[0063] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A protective structure, characterized in that, The system includes a housing (11) having a receiving cavity (111) and a stop hole (112) on its top surface, the stop hole (112) communicating with the receiving cavity (111); a first baffle plate (12) housed in the receiving cavity (111) and sliding relative to the stop hole (112), the first baffle plate (12) having a first through hole (121) and a first blocking portion (122); and a second baffle plate (13) housed in the receiving cavity (111) and sliding relative to the stop hole (112), the second baffle plate (13) having a second through hole (131) for... and a second shielding part (132); the second shielding plate (13) is located above the first shielding plate (12); a handle (14), the handle (14) includes a body part (141) and a handle part (142), the body part (141) is housed in the receiving cavity (111), the body part (141) is located below the first shielding plate (12), the handle part (142) extends to the outside through the first through hole (121), the second through hole (131), and the gear hole (112); when the handle (14) is rotated, the body part (141), the first shielding part (122), and the second shielding part (132) cooperate to close the gear hole (112).

2. The protective structure according to claim 1, characterized in that, The inner wall of the receiving cavity (111) is provided with a guide groove (113), the second baffle plate (13) fits into the guide groove (113), and the stop hole (112) passes through the guide groove (113).

3. The protective structure according to claim 2, characterized in that, Limiting parts (114) are provided on both sides of the guide groove (113).

4. The protective structure according to claim 1, characterized in that, It also includes an operating mechanism and a first link (15), one end of the first link (15) is connected to the main body (141), and the other end of the first link (15) is connected to the operating mechanism.

5. The protective structure according to claim 4, characterized in that, One of the first connecting rod (15) and the body part (141) is provided with a fixing part (16), and the other of the first connecting rod (15) and the body part (141) is provided with a fixing hole (17) that cooperates with the fixing part (16).

6. The protective structure according to claim 4, characterized in that, It also includes a first electromagnetic mechanism (18), a second electromagnetic mechanism (19), and a linkage (20). The first electromagnetic mechanism (18) includes a first push rod (181), and the second electromagnetic mechanism (19) includes a second push rod (191). The first push rod (181) is connected to one end of the linkage (20), and the second push rod (191) is connected to the other end of the linkage (20). The linkage (20) is provided with a guide hole (201). The first connecting rod (15) passes through the guide hole (201) and is connected to the operating mechanism. The inner wall of the guide hole (201) is located on the movement trajectory of the first connecting rod (15).

7. The protective structure according to claim 4 or 6, characterized in that, The operating mechanism includes a rotating shaft (21), and the other end of the first connecting rod (15) is connected to the rotating shaft (21).

8. The protective structure according to claim 7, characterized in that, The inner wall of the receiving cavity (111) is provided with a positioning hole (115), one end of the rotating shaft (21) extends to the positioning hole (115), and the other end of the rotating shaft (21) extends through the housing (11) to the outside.

9. The protective structure according to claim 8, characterized in that, The portion of the rotating shaft (21) extending to the outside of the housing (11) is provided with a cam portion (211), and a limiting block (116) is provided on the side wall of the housing (11), the limiting block (116) being located on the movement trajectory of the cam portion (211).

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