Mechanism box protection device and installation method thereof

Abstract

The invention discloses a mechanism box protection device and an installation method thereof, and belongs to the technical field of mechanism box protection.The mechanism box protection device comprises a shell cover, a shell, a connecting column and a connecting assembly, and a main body plate and a movable plate are rotationally connected through the connecting column arranged in a first connecting hole and a second connecting hole in a penetrating mode; the main body plate and the unfolding plate are rotationally connected through a connecting column penetrating through the first connecting hole and the third connecting hole, the connecting column is in threaded connection with the shell cover, the first connecting block is arranged on the movable plate and provided with a containing groove, the movable block is arranged in the containing groove in a sliding mode, and the second connecting block is arranged on the unfolding plate and provided with a connecting groove. The movable block is driven by the elastic piece to stretch into the connecting groove, the movable plate and the unfolding plate are connected in a locking mode, and the installation method of the mechanism box protection device is used for installing the mechanism box protection device. According to the mechanism box protection device, the mechanism box protection device is convenient to store and transport, easy to mount and dismount and high in maintainability; the installation method of the mechanism box protection device is easy to operate, low in cost and high in efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanism box protection, and in particular to a mechanism box protection device and an installation method thereof. Background Art

[0002] In the fields of industry, electricity, communications, etc., mechanism boxes are widely used to store various control equipment, electrical components and other important devices, and most of them are not fully enclosed equipment formed in one go, so anti-water seepage measures have been taken in the process of making the box. However, in complex outdoor environments, the waterproof performance of the mechanism box is not reliable enough. The aging of its waterproof sealing materials and the deformation of structural parts have caused rainwater penetration to occur frequently, seriously threatening the safe and stable operation of internal equipment and components as well as the reliability and durability of the entire system.

[0003] In view of the above problems, a mechanism box protection device is designed in the prior art. Most of these mechanism box protection devices are integrated structures. When installed, they are lowered from the top of the mechanism box to cover the entire mechanism box to achieve a waterproof effect.

[0004] However, the protective device with an integrated structure is large in size, which is not only inconvenient for transportation and storage, but also requires the use of tools such as a crane to lower the protective device from the top of the mechanism box until it covers the entire mechanism box during installation. The installation cost is high, and in the process of lowering it from the top of the mechanism box, the protective device is prone to swing, making it difficult to ensure that it is accurately aligned with the mechanism box. Any slight deviation may require readjustment, which undoubtedly increases the difficulty and complexity of the installation. The entire process is very cumbersome and time-consuming, affecting the installation efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a mechanism box protection device and an installation method thereof. The mechanism box protection device is convenient to store and transport, simple to install and disassemble, highly practical and maintainable; the installation method of the mechanism box protection device is simple to operate, and the installation cost of the method is low and the efficiency is high.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] Mechanism box protection device, including:

[0008] A shell cover, wherein the shell cover is provided with a threaded hole;

[0009] The housing comprises a main body plate, a movable plate and an expansion plate, wherein the main body plate, the movable plate and the expansion plate are arranged to form a protective space, the housing cover covers an opening at one end of the protective space, the main body plate is provided with two first connection holes, the movable plate is provided with a second connection hole, the expansion plate is provided with a third connection hole, the second connection hole is opposite to one of the first connection holes, and the third connection hole is opposite to another of the first connection holes;

[0010] A connecting column, wherein the main plate and the movable plate are rotatably connected through the connecting column passing through the first connecting hole and the second connecting hole, and the main plate and the expansion plate are rotatably connected through the connecting column passing through the first connecting hole and the third connecting hole, and the connecting column is screwed to the shell cover;

[0011] A connecting assembly, the connecting assembly comprises a first connecting block, a second connecting block, an elastic member and a movable block, the first connecting block is arranged on the movable plate and is provided with a receiving groove, the movable block is slidably arranged in the receiving groove, the elastic member is located between the movable block and the groove bottom of the receiving groove, the second connecting block is arranged on the unfolding plate and is provided with a connecting groove, the movable block extends into the connecting groove under the drive of the elastic member, and locks and connects the movable plate and the unfolding plate. .

[0012] Furthermore, the shell cover includes a top cover plate, and the top cover plate gradually approaches the shell from the center to the surrounding edges.

[0013] Furthermore, the shell cover also includes a water collecting fence, which is arranged around the outer periphery of the top cover plate, and a water guide groove is opened between the water collecting fence and the top cover plate.

[0014] Furthermore, the main plate is provided with a plurality of first grooves at one end and a plurality of second grooves at the other end; the movable plate is provided with a plurality of first protrusions, and the plurality of first protrusions are inserted into the plurality of first grooves one by one; the unfolding plate is provided with a plurality of second protrusions, and the plurality of second protrusions are inserted into the plurality of second grooves one by one.

[0015] Furthermore, the connecting assembly further comprises a limiting block, the first connecting block is provided with a limiting hole, the limiting hole is communicated with the side wall of the accommodating groove, the limiting block is passed through the limiting hole and connected to the movable block.

[0016] Furthermore, a guide surface is provided at one end of the movable block away from the elastic member, and the second connecting block can drive the movable block to retract into the accommodating groove by pressing against the guide surface.

[0017] Furthermore, one of the movable block and the groove wall of the connecting groove is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is clamped in the positioning groove.

[0018] Furthermore, both the movable block and the groove wall of the connecting groove, the first connecting block and the second connecting block are sleeved with protective covers.

[0019] Furthermore, a sealing strip is sandwiched between the movable plate and the unfolded plate.

[0020] The installation method of the mechanism box protection device is used to install the above-mentioned mechanism box protection device on the mechanism box, comprising:

[0021] Step 1: connect the main plate, the movable plate and the unfolded plate together so that the second connecting hole faces one first connecting hole and the third connecting hole faces another first connecting hole;

[0022] Step 2: Align the two threaded holes on the shell cover with the two first connecting holes on the main body plate one by one;

[0023] Step 3: insert one connecting post into the first connecting hole and the second connecting hole and screw it to the shell cover, and insert another connecting post into another first connecting hole and the third connecting hole and screw it to the shell cover;

[0024] Step 4: rotate the movable plate and the unfolding plate until the movable block is inserted into the connecting groove, so that the main plate, the movable plate and the unfolding plate are surrounded to form a protective space, and the mechanism box is placed in the protective space.

[0025] Beneficial effects of the present invention:

[0026] A mechanism box protection device proposed in the present invention is mainly composed of a shell cover, a shell body, a connecting column and a connecting assembly. When not installed, the shell cover, the main plate, the movable plate, the expansion plate and the connecting column are in a separated state. Compared with an integrated protection device, this split structure can be flexibly adjusted in layout according to the shape and size of the space for placement, thereby having higher convenience and adaptability in storage and transportation. When the installation is completed, the main plate and the movable plate, as well as the main plate and the expansion plate, are transferred through the connecting column. The connecting column plays a role in fixing the overall structure and in transferring, which saves materials and reduces costs. In addition, the movable plate and the expansion plate can be flexibly opened and closed, which improves practicality. On this basis, when the movable plate and the expansion plate are closed, they are connected through the connecting assembly. The connection method is simple, installation and disassembly are convenient, and the device is highly maintainable.

[0027] The installation method of the mechanism box protective device proposed by the present invention first docks the main plate, the movable plate and the expansion plate according to the hole position requirements, then makes the shell cover threaded hole face the main plate connection hole, then uses the connection column to penetrate the corresponding hole and screws the shell cover, and finally rotates the movable plate and the expansion plate to allow the movable block to snap into the connection groove to form a protective space and place the mechanism box therein. The logic of each step is clear, and the connection method is simple and easy to operate. In addition, the installation method of the present invention is to place the mechanism box in the protective space by enclosing it. Compared with the installation method of the traditional integrated protective device that is lowered from the top as a whole, it does not require the assistance of large-scale lifting equipment, which greatly reduces the difficulty and cost of installation and improves the efficiency of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a first structural schematic diagram of the mechanism box protection device provided in a specific embodiment of the present invention.

[0029] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0030] Figure 3 is a second structural schematic diagram of the mechanism box protection device provided in a specific embodiment of the present invention;

[0031] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0032] Figure 5 is a schematic structural diagram of a shell cover provided in a specific embodiment of the present invention;

[0033] Figure 6 It is a partial structural schematic diagram of a mechanism box protection device provided in a specific embodiment of the present invention;

[0034] Figure 7 It is a schematic diagram of the connecting column structure provided by a specific embodiment of the present invention.

[0035] In the figure:

[0036] 1. Shell cover; 10. Water guide trough; 11. Top cover plate; 12. Water collecting fence;

[0037] 2. Shell; 21. Main body plate; 22. Movable plate; 23. Expandable plate;

[0038] 3. Connecting column;

[0039] 4. Connecting assembly; 41. First connecting block; 410. Accommodating groove; 411. Limiting hole; 42. Second connecting block; 420. Connecting groove; 43. Elastic member; 44. Movable block; 45. Limiting block; 46. Protective cover. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0045] like Figure 1-Figure 7As shown, the present invention provides a mechanism box protection device, including a shell cover 1, a shell body 2, a connecting column 3 and a connecting assembly 4, the shell cover 1 is provided with a threaded hole; the shell body 2 includes a main plate 21, a movable plate 22 and an expansion plate 23, the main plate 21, the movable plate 22 and the expansion plate 23 are surrounded to form a protection space, the shell cover 1 covers one end opening of the protection space, the main plate 21 is provided with two first connecting holes, the movable plate 22 is provided with a second connecting hole, and the expansion plate 23 is provided with a third connecting hole, the second connecting hole is opposite to one first connecting hole, and the third connecting hole is opposite to another first connecting hole; the main plate 21 and the movable plate 22 are rotated by the connecting column 3 penetrating the first connecting hole and the second connecting hole Dynamic connection, the main plate 21 and the expansion plate 23 are rotatably connected by a connecting column 3 passing through the first connecting hole and the third connecting hole, and the connecting column 3 is screwed to the shell cover 1; the connecting component 4 includes a first connecting block 41, a second connecting block 42, an elastic member 43 and a movable block 44, the first connecting block 41 is arranged on the movable plate 22 and is provided with a receiving groove 410, the movable block 44 is slidably arranged in the receiving groove 410, the elastic member 43 is located between the movable block 44 and the bottom of the receiving groove 410, the second connecting block 42 is arranged on the expansion plate 23 and is provided with a connecting groove 420, the movable block 44 extends into the connecting groove 420 under the drive of the elastic member 43, and locks and connects the movable plate 22 and the expansion plate 23.

[0046] When not installed, the shell cover 1, the main body panel 21, the movable panel 22, the expansion panel 23 and the connecting column 3 are in a split state. Compared with the integrated protective device, this split structure can flexibly adjust the layout according to the size and shape of the storage space, so that it has higher convenience and adaptability in the storage and transportation links. When the installation is completed, the main body panel 21 and the movable panel 22 and the main body panel 21 and the expansion panel 23 are transferred through the connecting column 3. The connecting column 3 plays a role in fixing the overall structure and a transfer role, which saves materials and reduces costs. The movable panel 22 and the expansion panel 23 can be flexibly opened and closed, which improves practicality. On this basis, when the movable panel 22 is closed, it is connected to the expansion panel 23 through the connecting component 4. The connection method is simple, the installation and disassembly are convenient, and the maintainability of the device is high.

[0047] Specifically, the main plate 21 is L-shaped, including a first plate body and a second plate body connected to each other, the movable plate 22 is connected to one end of the first plate body away from the second plate body, and the expansion plate 23 is connected to one end of the second plate body away from the first plate body.

[0048] More specifically, the first plate body is perpendicular to the second plate body, and the cross-section of the protective space formed by assembling the main plate 21, the movable plate 22 and the unfolded plate 23 is rectangular.

[0049] In other embodiments, the main panel 21 may also include one plate body or more than two plate bodies connected in sequence. Exemplarily, the main panel 21 includes only one plate body, and the movable panel 22 and the unfolding panel 23 are respectively connected to the two ends of the main panel 21. The cross-section of the protective space formed by assembling the main panel 21, the movable panel 22 and the unfolding panel 23 is triangular.

[0050] In this embodiment, the elastic member 43 is not connected to the movable block 44 and the bottom of the receiving groove 410 , and the notch of the receiving groove 410 is provided with a retaining edge capable of preventing the movable block 44 from escaping from the receiving groove 410 .

[0051] In other embodiments, two ends of the elastic member 43 are respectively connected to the movable block 44 and the bottom of the receiving groove 410 , so that the movable block 44 is limited in the receiving groove 410 .

[0052] Specifically, Figure 3 and Figure 5 As shown, the housing cover 1 includes a top cover plate 11, which gradually approaches the housing 2 from the center to the edges. When rain falls on the top cover 11, it will naturally flow to the edge and then flow to the outside of the device along the edge, effectively avoiding the accumulation of rainwater on the top of the housing cover 1, preventing rainwater from penetrating into the protective space, and protecting the equipment in the mechanism box from rainwater erosion.

[0053] More specifically, if Figure 5 As shown, the shell cover 1 also includes a water collecting fence 12, which is arranged around the outer periphery of the top cover plate 11, and a water guide groove 10 is opened between the water collecting fence 12 and the top cover plate 11. The water guide groove 10 provides a clear flow channel for rainwater. After the rainwater flows from the top cover plate 11 to the water guide groove 10, it will flow to the ground along the water guide groove 10. The drainage process is orderly and stable. The water collecting fence 12 is arranged around the outer periphery of the top cover plate 11, which can effectively collect the rainwater flowing down the edge of the top cover plate 11 and make the rainwater flow out from the water guide groove 10.

[0054] In this embodiment, the edge of the top cover plate 11 protrudes from the shell 2, and the water guide groove 10 is inclined so that the water flowing out of the water guide groove 10 flows in a direction away from the outer wall of the shell 2, which can divert rainwater to the outside of the shell 2, effectively protecting the mechanism box from rainwater erosion and improving the overall protection effect of the device.

[0055] Specifically, the main plate 21 is provided with a plurality of first grooves and a plurality of second grooves, the movable plate 22 is provided with a plurality of first protrusions, and the plurality of first protrusions are inserted into the plurality of first grooves one by one, and the expansion plate 23 is provided with a plurality of second protrusions, and the plurality of second protrusions are inserted into the plurality of second grooves one by one. Through the insertion and matching of the protrusions and the grooves, the connection between the movable plate 22 and the main plate 21, and the expansion plate 23 and the main plate 21 is made tighter and more stable, so that the structural integrity of the entire protective space can be maintained even if the device is subjected to external force impact, vibration, etc. during daily use; and this insertion structure enables the movable plate 22 and the expansion plate 23 to have a clear installation positioning reference when being assembled with the main plate 21, and the operator can insert the corresponding protrusion into the groove more conveniently, which effectively improves the installation efficiency, reduces the installation difficulty, and is also convenient for subsequent disassembly and maintenance operations.

[0056] In this embodiment, the second connection hole passes through the plurality of first protrusions, and the third connection hole passes through the plurality of second protrusions.

[0057] Specifically, Figure 4 As shown, the connection assembly 4 further includes a limit block 45, the first connection block 41 is provided with a limit hole 411, the limit hole 411 is connected to the side wall of the receiving groove 410, and the limit block 45 is penetrated through the limit hole 411 and connected to the movable block 44. The limit hole 411 provides a certain movement path for the limit block 45, so that the movable block 44 can only move linearly along this path in the receiving groove 410, and this guiding effect ensures that the movable block 44 can accurately extend into the connection groove 420 of the second connection block 42, thereby realizing reliable locking of the movable plate 22 and the unfolding plate 23.

[0058] In this embodiment, the connecting component 4 also includes a pushing block, which is located on the outside of the first connecting block 41 and connected to the limit block 45. The setting of the pushing block provides a convenient way for the operator to control the movement of the movable block 44 from the outside. When it is necessary to unlock the connection between the movable plate 22 and the unfolding plate 23, it is only necessary to apply a corresponding external force to the pushing block from the outside, and the limit block 45 is driven to move by the pushing block, so that the movable block 44 is retracted into the accommodating groove 410 along the direction of the limit hole 411, and the unlocking operation can be completed.

[0059] Specifically, a guide surface is provided at one end of the movable block 44 that faces away from the elastic member 43, and the second connecting block 42 can drive the movable block 44 to retract into the receiving groove 410 by pressing against the guide surface. During the installation process, the setting of the guide surface can guide the second connecting block 42 and the movable block 44 to smoothly contact and generate relative movement, so that the movable block 44 retracts into the receiving groove 410 and squeezes the elastic member 43. Under the elastic force of the elastic member 43, the movable block 44 accurately extends into the connecting groove 420 of the second connecting block 42, thereby realizing a reliable locking connection between the movable plate 22 and the deployment plate 23, and improving the convenience and success rate of installing the entire protective device.

[0060] Specifically, one of the movable block 44 and the groove wall of the connecting groove 420 is provided with a positioning convex head and the other is provided with a positioning groove, and the positioning convex head is clamped in the positioning groove. When the protective device is subjected to external impact, vibration, etc., since the positioning convex head is clamped in the positioning groove, it is not easy for the movable plate 22 and the expansion plate 23 to be misaligned or loosened, thereby improving the stability of the connection between the movable plate 22 and the expansion plate 23, and further ensuring the stability of the entire protective device structure.

[0061] In this embodiment, a positioning protrusion is provided on the movable block 44 , and a positioning groove is provided on the groove wall of the connecting groove 420 .

[0062] In other embodiments, the movable block 44 is provided with a positioning groove, and a positioning protrusion is provided on the groove wall of the connecting groove 420 .

[0063] Specifically, the first connection block 41 and the second connection block 42 are both sleeved with a protective cover 46, and the top surface of the protective cover 46 is inclined in the direction away from the housing cover 1 along the direction away from the movable plate 22. When it rains, rainwater falls on the protective cover 46 and slides down along the inclined top surface, and does not accumulate on the top of the protective cover 46, and is less likely to penetrate into the connection assembly 4 through the gaps between the connection blocks, etc., effectively preventing the components in the connection assembly 4 from rusting, corroding or affecting their normal operation due to the entry of rainwater, thereby ensuring the performance of the connection assembly 4 and increasing the service life of the connection assembly 4.

[0064] Specifically, a sealing strip is sandwiched between the movable plate 22 and the unfolded plate 23. The setting of the sealing strip can effectively fill the tiny gap that may exist at the joint of the movable plate 22 and the unfolded plate 23, making it difficult for dust and rainwater from the outside to enter the protective space through the sealing strip, further improving the sealing of the entire protective device, and creating a cleaner, drier and better operating environment for the equipment in the mechanism box.

[0065] In this embodiment, the sealing strip is installed on the edge of the movable plate 22 by means of a slot. When the movable plate 22 and the unfolded plate 23 are connected, the sealing strip can be accurately located between the two to play a sealing role.

[0066] In other embodiments, partial sealing strips can be set on the edges of the movable plate 22 and the unfolded plate 23. For example, half of the sealing strip is set on the edge of the movable plate 22, and the other half of the sealing strip is set on the edge of the unfolded plate 23. When the two are connected, the two parts of the sealing strip cooperate with each other to form a complete sealing structure.

[0067] The present invention also provides a method for installing a mechanism box protection device, which is used to install the mechanism box protection device on the mechanism box, comprising:

[0068] Step 1: connect the main plate 21, the movable plate 22 and the unfolding plate 23 together so that the second connecting hole faces one first connecting hole and the third connecting hole faces another first connecting hole;

[0069] Step 2: Align the two threaded holes on the shell cover 1 with the two first connecting holes on the main body plate 21 one by one;

[0070] Step 3: insert one connecting post 3 into the first connecting hole and the second connecting hole and screw it to the shell cover 1; insert another connecting post 3 into another first connecting hole and the third connecting hole and screw it to the shell cover 1;

[0071] Step 4, rotate the movable plate 22 and the unfolding plate 23 until the movable block 44 is inserted into the connecting groove 420, so that the main plate 21, the movable plate 22 and the unfolding plate 23 are surrounded to form a protective space, and the mechanism box is placed in the protective space.

[0072] The installation steps of the present invention are logically clear, the connection method is simple and easy to operate, and the installation method of the present invention is to place the mechanism box in the protection space by enclosure. Compared with the traditional integrated protection device installation method of lowering the whole from the top, no large lifting equipment is required to assist, which greatly reduces the difficulty and cost of installation and improves the efficiency of installation.

[0073] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The mechanism box protection device is characterized in that: include: A shell cover (1), wherein the shell cover (1) is provided with a threaded hole; The housing (2) comprises a main plate (21), a movable plate (22) and an expansion plate (23), wherein the main plate (21), the movable plate (22) and the expansion plate (23) are arranged to form a protective space, and the housing cover (1) covers an opening at one end of the protective space, the main plate (21) is provided with two first connection holes, the movable plate (22) is provided with a second connection hole, and the expansion plate (23) is provided with a third connection hole, wherein the second connection hole is opposite to one of the first connection holes, and the third connection hole is opposite to another of the first connection holes; A connecting column (3), the main plate (21) and the movable plate (22) are rotatably connected via the connecting column (3) passing through the first connecting hole and the second connecting hole, the main plate (21) and the expansion plate (23) are rotatably connected via the connecting column (3) passing through the first connecting hole and the third connecting hole, and the connecting column (3) is screwed to the shell cover (1); A connecting assembly (4), the connecting assembly (4) comprising a first connecting block (41), a second connecting block (42), an elastic member (43) and a movable block (44), the first connecting block (41) being arranged on the movable plate (22) and being provided with a receiving groove (410), the movable block (44) being slidably arranged in the receiving groove (410), the elastic member (43) being located between the movable block (44) and the groove bottom of the receiving groove (410), the second connecting block (42) being arranged on the unfolding plate (23) and being provided with a connecting groove (420), the movable block (44) extending into the connecting groove (420) under the drive of the elastic member (43) to lock and connect the movable plate (22) and the unfolding plate (23).

2. The mechanism box protection device according to claim 1, characterized in that: The shell cover (1) comprises a top cover plate (11), and the top cover plate (11) gradually approaches the shell body (2) from the center to the surrounding edges.

3. The mechanism box protection device according to claim 2, characterized in that: The shell cover (1) further comprises a water collecting fence (12), wherein the water collecting fence (12) is arranged around the outer periphery of the top cover plate (11), and a water guide groove (10) is provided between the water collecting fence (12) and the top cover plate (11).

4. The mechanism box protection device according to claim 1, characterized in that: One end of the main plate (21) is provided with a plurality of first grooves, and the other end is provided with a plurality of second grooves; the movable plate (22) is provided with a plurality of first protrusions, and the plurality of first protrusions are inserted into the plurality of first grooves in a one-to-one correspondence; the unfolding plate (23) is provided with a plurality of second protrusions, and the plurality of second protrusions are inserted into the plurality of second grooves in a one-to-one correspondence.

5. The mechanism box protection device according to claim 1, characterized in that: The connection assembly (4) further comprises a limit block (45); the first connection block (41) is provided with a limit hole (411); the limit hole (411) is connected to a side wall of the receiving groove (410); the limit block (45) is passed through the limit hole (411) and is connected to the movable block (44).

6. The mechanism box protection device according to claim 1, characterized in that: A guide surface is provided at one end of the movable block (44) facing away from the elastic member (43), and the second connecting block (42) can drive the movable block (44) to retract into the accommodating groove (410) by pressing against the guide surface.

7. The mechanism box protection device according to claim 1, characterized in that: One of the movable block (44) and the groove wall of the connecting groove (420) is provided with a positioning convex head, and the other is provided with a positioning groove, and the positioning convex head is clamped in the positioning groove.

8. The mechanism box protection device according to claim 1, characterized in that: The first connecting block (41) and the second connecting block (42) are both covered with protective covers (46).

9. The mechanism box protection device according to claim 1, characterized in that: A sealing strip is sandwiched between the movable plate (22) and the unfolded plate (23).

10. A method for installing a mechanism box protection device, for installing the mechanism box protection device according to any one of claims 1 to 9 on a mechanism box, characterized in that: include: Step 1: dock the main plate (21), the movable plate (22) and the unfolding plate (23) together so that the second connection hole faces one first connection hole and the third connection hole faces another first connection hole; Step 2: Align the two threaded holes on the shell cover (1) with the two first connection holes on the main body plate (21); Step 3: insert one connecting post (3) into the first connecting hole and the second connecting hole and screw it to the shell cover (1); insert another connecting post (3) into another first connecting hole and the third connecting hole and screw it to the shell cover (1); Step 4: rotate the movable plate (22) and the unfolding plate (23) until the movable block (44) is inserted into the connecting groove (420), so that the main plate (21), the movable plate (22) and the unfolding plate (23) are surrounded to form a protective space, and the mechanism box is placed in the protective space.

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