A mouse-proof device and control method for a machine room application

Abstract

The application discloses a mouse blocking device for machine room, which comprises a mouse blocking plate, tracks for providing the mouse blocking plate with lifting on both sides of the mouse blocking plate, and an electromagnetic limiting part provided on the track and capable of limiting the lifting of the mouse blocking plate in the track when the electromagnetic limiting part is powered off; the mouse blocking device further comprises an electromagnetic track, which comprises a left magnetic track, a right magnetic track and a magnetic conducting part, the left magnetic track and the right magnetic track are embedded underground, the magnetic conducting part is located between the left magnetic track and the right magnetic track and connected with the mouse blocking plate, and the magnetic conducting part is capable of driving the mouse blocking plate to lift in the track when positive and negative currents are respectively input into the left magnetic track and the right magnetic track. The mouse blocking device can automatically realize the lifting of the mouse blocking plate at the door of the machine room by the electromagnetic track and the electromagnetic limiting part, thereby reducing the obstruction of the mouse blocking plate to the personnel entering and leaving the machine room and improving the convenience.

Description

Technical Field

[0001] The invention relates to the technical field of cable site safety, and in particular to a mouse-blocking device used in a machine room. Background Art

[0002] In ordinary substations, power supply rooms, substations, and equipment rooms with special requirements, the doors of these rooms must be equipped with rat guards to prevent rats and other small animals from invading and gnawing on cables. However, in practice, the height of the room's original threshold raises the base height for the rat guard installation. Coupled with the relatively high specifications (generally no less than 50 cm), this makes entry to the room difficult and prone to tripping. In practice, the rat guards are often fixed to the door frame, and the door hinges keep them permanently closed, making it difficult to move objects or install cables in the power supply room. Furthermore, once the fixed rat guards have been removed, they are difficult to reinstall. General regulations for substation and equipment room management require that the rat guards be in the rat-proof position when the room is unoccupied and the door is closed. However, in practice, after personnel temporarily remove the rat guards for construction work, they often forget to put them back in place, allowing rats to enter the room. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology. The purpose is to provide a mouse guard device for use in a computer room. The electromagnetic support rails and electromagnetic limiters are used to automatically raise and lower the mouse guard plate at the computer room door, thereby reducing the obstruction caused by the mouse guard plate to people entering and exiting the computer room door and improving convenience.

[0004] The present invention is achieved through the following technical solutions:

[0005] A rat guard device for use in a computer room comprises a rat guard plate, two sides of which are provided with tracks for providing the rat guard plate with a lifting function, and an electromagnetic limiter provided on the track, which can limit the raising and lowering of the rat guard plate within the track when the electromagnetic limiter is powered off;

[0006] It also includes an electromagnetic support rail, which includes a left magnetic rail, a right magnetic rail and a magnetic conductive part. The left magnetic rail and the right magnetic rail are pre-buried underground. The magnetic conductive part is located between the left magnetic rail and the right magnetic rail, and the magnetic conductive part is connected to the mouse guard. When positive and negative currents are respectively passed through the left magnetic rail and the right magnetic rail, the magnetic conductive part can drive the mouse guard to rise in the track.

[0007] Furthermore, the track includes an upper slide rail and a lower slide rail;

[0008] The electromagnetic limiter includes a spring, a fixed block, a metal frame, and an electromagnet. The fixed block is fixedly installed between the upper and lower slide rails and is located in the metal frame. The metal frame undergoes a lateral relative displacement with respect to the fixed block. One end of the spring is fixed in the metal frame, and the other end is connected to the fixed block. The upper and lower ends of the fixed block are respectively connected to the upper slide rail and the lower slide rail.

[0009] The spring is used to push the metal frame to move to the vertical direction where the mouse guard is located;

[0010] The electromagnet is located on one side of the metal frame. When the electromagnet is energized, it generates a magnetic force to attract the metal frame to move toward the electromagnet and compress the spring.

[0011] Furthermore, the left magnetic track and the right magnetic track are obtained by cutting the magnetic metal tube into two parts along the axis;

[0012] The left magnetic track and the right magnetic track are provided with arc-shaped grooves on their planes facing each other;

[0013] The two sides of the magnetic conductive member are respectively located in the arc-shaped grooves of the left magnetic track and the right magnetic track, and are in contact with the inner walls of the arc-shaped grooves.

[0014] Furthermore, the magnetic conductive member has a protrusion, and the protrusion passes through the gap between the left magnetic rail and the right magnetic rail and is connected to the mouse guard plate;

[0015] The surface of the raised portion is coated with an insulating layer;

[0016] The outer wall surfaces of the left magnetic track and the right magnetic track are also coated with an insulating layer.

[0017] Furthermore, an interception bar is provided between the tops of the left magnetic track and the right magnetic track.

[0018] Furthermore, the mouse guard plate is provided with a door support limiter connected to the machine room door, and the door support limiter includes a pull rod and a connecting piece, and the connecting piece is fixed on the machine room door. The connecting piece is provided with a vertically connected horizontal slide groove and a vertical slide groove, and the horizontal slide groove is located above the vertical slide groove. One end of the pull rod is hinged to the mouse guard plate, and the other end is slidably connected to the horizontal slide groove or the vertical slide groove. The horizontal slide groove is used to change the horizontal position of the pull rod, and the vertical slide groove is used to change the vertical position of the pull rod.

[0019] Furthermore, the connecting member includes a horizontal plate and a vertical plate, one end of the vertical plate is connected to the horizontal plate, and the other end is provided with a connecting plate, the horizontal plate and the connecting plate are both provided with a convex edge, and the convex edge is provided with a first fixing bolt for connecting to the machine room door;

[0020] The transverse slide is located on the transverse plate;

[0021] The vertical slide is located on the vertical plate.

[0022] Furthermore, a second fixing bolt is provided on one end of the pull rod, and the second fixing bolt is used to connect with the mouse guard plate;

[0023] A guide piece is provided on the other end of the pull rod, and the guide piece is used for sliding connection with the horizontal sliding groove;

[0024] The vertical slide groove is respectively connected to the horizontal slide groove and the connecting plate with a bayonet. The width of the horizontal slide groove and the vertical slide groove is smaller than the width of the bayonet, and the diameter of the guide member is not greater than the width of the bayonet.

[0025] Furthermore, the guide member includes a hexagonal bolt and two limiting plates, the pull rod and the two limiting plates are sleeved on the hexagonal bolt, the diameter of the limiting plate is greater than the width of the horizontal slide groove and the vertical slide groove; the width of the vertical slide groove is greater than the width of the pull rod, and the diameter of the limiting plate is not greater than the width of the bayonet;

[0026] The two limiting plates support the hexagonal bolt in the transverse sliding groove.

[0027] A method for controlling a mouse-blocking device used in a computer room comprises the following steps:

[0028] 1) Open the machine room door. The guide on the pull rod moves along the horizontal slide groove to the slot at the end of the horizontal slide groove to support the machine room door.

[0029] 2) Power is supplied to the electromagnet of the electromagnetic limiter. The electromagnet generates magnetic force to attract the metal frame to move toward the electromagnet. The mouse guard plate descends from the mouse guard working position to the ground. When the mouse guard plate descends, the guide on the pull rod moves into the bayonet on the connecting plate. At this time, the machine room door cannot be closed.

[0030] 3) After the operator completes the operation, direct current is applied to the electromagnetic support rail, forming a magnetic field between the left and right magnetic rails. Under the action of the magnetic field, the magnetic conductive part moves from bottom to top, lifting the mouse guard to the mouse guard working position of the machine room door. The pull rod on the mouse guard moves along the vertical slide groove to the horizontal slide groove;

[0031] 4) When the mouse guard moves to the mouse guard working position of the machine room door, the power supply of the electromagnetic limiter is disconnected, and the metal frame moves to the bottom of the mouse guard under the action of the spring to support the mouse guard.

[0032] 5) Close the machine room door. When the machine room door is closed, the guide on the pull rod moves in the horizontal sliding groove.

[0033] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0034] 1. The rat guard provided in the present invention adopts a liftable structure, so that personnel can lower the rat guard to the ground when entering and exiting the machine room door, reducing the interference of the rat guard on the personnel entering and exiting. At the same time, the door support limiter can be used to limit the door to be in an open state, which is convenient for personnel to enter and exit. At the same time, when the machine room door needs to be closed, the provided door support limiter can ensure that the rat guard must be in the rat blocking working position before it can be smoothly closed, avoiding the situation where the rat guard is forgotten to be restored to the rat blocking working position when closing the machine room door, thereby improving the protection of the machine room.

[0035] 2. The present invention utilizes the magnetic force generated by the electromagnet provided in the electromagnetic limiter when energized to attract the lateral displacement of the metal frame, thereby eliminating the restriction of the metal frame on the mouse guard plate in the upper track, thereby ensuring that the mouse guard plate can slide normally between the upper slide rail and the lower slide rail, and realizing the adjustment of the vertical position of the mouse guard plate. When the electromagnet in the electromagnetic limiter is de-energized, the spring in the electromagnetic limiter releases its elastic force, pushing the metal frame to lateral displacement, providing support force for the mouse guard plate from below, supporting the mouse guard plate and enabling it to be stably fixed at the mouse guard working position in the machine room.

[0036] 3. The present invention utilizes the electromagnetic support rail to generate a magnetic field when powered, thereby driving the magnetic conductive part located in the electromagnetic support rail to move upward, and then driving the mouse guard plate to move from the lower slide rail to the upper slide rail, thereby achieving the purpose of raising the mouse guard plate to the mouse blocking working position of the machine room door. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0038] Figure 1 It is a schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the structure of the mouse guard of the present invention when it is lowered;

[0040] Figure 3 This is a schematic structural diagram of the mouse guard of the present invention when it is raised;

[0041] Figure 4 This is a structural schematic diagram of the electromagnetic limiter of the present invention in an electromagnetically attracted state;

[0042] Figure 5 This is a structural diagram of the electromagnetic limiter of the present invention in the state of power failure and popping out;

[0043] Figure 6 It is a structural schematic diagram of the electromagnetic support rail of the present invention;

[0044] Figure 7This is a structural schematic diagram of the electromagnetic support rail of the present invention from another perspective;

[0045] Figure 8 Schematic diagram of the structure of the magnetic conductive member of the present invention;

[0046] Figure 9 This is a structural diagram of the door support limiter of the present invention;

[0047] Figure 10 This is a structural diagram of the door support stopper of the present invention in another state;

[0048] Figure 11 It is a structural schematic diagram of the bayonet of the present invention;

[0049] Figure 12 It is a structural schematic diagram of the guide member of the present invention;

[0050] Figure 13 For the present invention Figure 9 The structural diagram of the enlarged part A in the middle;

[0051] Figure 14 For the present invention Figure 10 Schematic diagram of the structure after enlarging part B in the middle.

[0052] Markings and corresponding parts names in the accompanying drawings:

[0053] 1. Machine room door; 2. Mouse guard; 3. Door support limiter; 4. Door threshold; 5. Magnetic member; 6. First slide; 7. Second slide; 8. Third slide; 9. Fourth slide; 10. Electromagnetic support rail; 11. Electromagnetic limiter; 12. Electromagnet; 13. Metal frame; 14. Spring; 15. Fixing block; 16. Left magnetic rail; 17. Interceptor bar; 18. Bayonet; 19. Guide member; 20. First fixing bolt; 21. Second fixing bolt; 22. Vertical slide; 23. Horizontal slide; 24. Pull rod; 25. Right magnetic rail; 26. Horizontal plate; 27. Vertical plate; 28. Connecting plate. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0055] Example 1

[0056] like Figures 1 to 14As shown, the present invention includes a liftable mouse guard 2, the mouse guard 2 is provided with a door support limiter 3 connected to the machine room door 1, the door support limiter 3 includes a pull rod 24 and a connecting piece, the connecting piece is fixed on the machine room door 1, the connecting piece is provided with a vertically connected horizontal slide groove 23 and a vertical slide groove 22, and the horizontal slide groove 23 is located above the vertical slide groove 22, one end of the pull rod 24 is hinged to the mouse guard 2, and the other end is slidably connected to the horizontal slide groove 23 or the vertical slide groove 22, the horizontal slide groove 23 is used to change the horizontal position of the pull rod 24, and the vertical slide groove 22 is used to change the vertical position of the pull rod 24.

[0057] In the prior art, in order to prevent the rat guard 2 installed at the machine room door 1 from interfering with personnel entering and exiting, and to facilitate personnel entering and exiting, the rat guard 2 at the machine room is set to a detachable structure. When personnel need to move things or drag cables in the high-voltage room, the rat guard 2 is often removed from the machine room door 1 and then reinstalled after the work is completed. However, it is often the case that the operator forgets to install it or it is difficult to install it, making it difficult to restore the rat guard 2 to its original position, allowing rats and other small animals to enter the machine room. To this end, the inventors pre-embedded a rat guard 2 at the threshold 4 of the existing machine room door 1. The rat guard 2 can extend from the ground and remain in the rat-blocking position, thereby preventing rats and other small animals from entering the machine room. The rat guard 2 in the present technical solution is liftable so that when personnel enter and exit the machine room, the rat guard 2 can be lowered below the ground, thereby preventing the rat guard 2 from interfering with personnel entering and exiting.

[0058] The door stopper 3 provided in the present technical solution can be used to support the machine room door 1 on the one hand. Specifically, the pull rod 24 and the connecting piece are used to support the machine room door 1 together to ensure that the machine room door 1 is in an open state. On the other hand, since the mouse guard 2 in the present technical solution can be extended from the ground, the mouse guard 2 is placed in the mouse blocking working position of the machine room door 1. Therefore, in order to ensure that the mouse guard 2 can move up and down normally in the vertical plane, a vertical slide groove 22 is provided on the connecting piece. The vertical slide groove 22 is used to make the mouse guard 2 move up and down normally. The pull rod 24 can slide up and down on the machine room door 1, ensuring that longitudinal relative displacement can occur between the mouse guard 2 and the machine room door 1; at the same time, a horizontal sliding groove 23 is also provided on the connecting piece in the present technical solution. The main purpose of the horizontal sliding groove 23 is to enable the machine room door 1 to be able to jam the pull rod 24 when it is opened, thereby keeping the machine room door 1 in an open state. At the same time, when the machine room door 1 is closed, the set pull rod 24 can slide in the horizontal sliding groove 23 of the connecting piece, thereby ensuring that the machine room door 1 can be closed smoothly.

[0059] When the door 1 is closed, the rod 24 is in the horizontal slot 23 and the mouse guard 2 is in the mouse-blocking working position. When the door 1 is closed, the rod 24 is in the horizontal slot 23 and the mouse-blocking working position is in the mouse-blocking working position. When the door 1 is closed, the rod 24 is in the horizontal slot 23 and the mouse-blocking working position is in the mouse-blocking working position. When the door 1 is closed, the rod 24 is in the vertical slot 22 and the mouse-blocking working position is in the mouse-blocking working position.

[0060] The connecting member includes a horizontal plate 26 and a vertical plate 27. One end of the vertical plate 27 is connected to the horizontal plate 26, and the other end is provided with a connecting plate 28. Both the horizontal plate 26 and the connecting plate 28 are provided with a convex edge, and the convex edge is provided with a first fixing bolt 20 for connecting to the machine room door 1; the horizontal sliding groove 23 is located on the horizontal plate 26; the vertical sliding groove 22 is located on the vertical plate 27.

[0061] In this embodiment, in order to realize the movement of the pull rod 24 in the horizontal direction and the vertical direction, realize the lifting and lowering of the mouse guard plate 2 and the closing and opening of the machine room door 1, a horizontal plate 26 is provided to realize the horizontal movement of the pull rod 24. The convex edge of the horizontal plate 26 is fixed to the machine room door 1 by the first fixing bolt 20, so that when the machine room door 1 is opened and closed, the pull rod 24 connected to the mouse guard plate 2 can slide on the horizontal groove 23 of the horizontal plate 26; and in order to realize the vertical movement of the pull rod 24, a horizontal plate 26 is provided to realize the horizontal movement of the pull rod 24. The upward movement lifts the mouse guard plate 2 from the ground to the mouse guard working position, or lowers the mouse guard plate 2 at the working position to the ground, so a vertical plate 27 is provided, and the vertical plate 27 is connected to the horizontal plate 26 as an integrated structure, and the overall structure is L-shaped. The vertical plate 27 is also fixed to the machine room door 1 by the first fixing bolt 20 on the convex edge, and the vertical slide groove 22 on the vertical plate 27 is connected to the horizontal slide groove 23 on the horizontal plate 26, ensuring that the pull rod 24 can move smoothly between the vertical slide groove 22 and the horizontal plate 26.

[0062] A second fixing bolt 21 is provided on one end of the pull rod 24 , and the second fixing bolt 21 is used to be connected to the mouse guard 2 ; a guide member 19 is provided on the other end of the pull rod 24 , and the guide member 19 is used to be slidably connected to the horizontal sliding groove 23 .

[0063] In this embodiment, in order to achieve synchronous movement of the mouse guard 2 and the pull rod 24 in the vertical direction, the pull rod 24 is connected to the top of the mouse guard 2 through the second fixing bolt 21. At the same time, in order to ensure the normal opening and closing of the machine room door 1, the second fixing bolt 21 and the pull rod 24 are hinged, that is, the pull rod 24 can rotate around the second fixing bolt 21 on the mouse guard 2.

[0064] At the same time, in order to ensure that the other end of the pull rod 24 can be slidably connected with the horizontal slide groove 23, and at the same time realize the switching of the position of the pull rod 24 between the vertical slide groove 22 and the horizontal slide groove 23, a guide member 19 is provided on the other end of the pull rod 24. The provided guide member 19 can not only realize the sliding of the pull rod 24 on the vertical slide groove 22 and the horizontal slide groove 23, but also realize the switching of the position between the vertical slide groove 22 and the horizontal slide groove 23.

[0065] The vertical slide groove 22 is respectively connected to the horizontal slide groove 23 and the connecting plate 28 with a bayonet 18. The width of the horizontal slide groove 23 and the vertical slide groove 22 are both smaller than the width of the bayonet 18, and the diameter of the guide member 19 is not greater than the width of the bayonet 18.

[0066] At the same time, in order to realize the movement of the guide member from the vertical slide groove 22 to the horizontal slide groove 23, or from the horizontal slide groove 23 to the vertical slide groove 22, a bayonet 18 is provided at the connection between the vertical slide groove 22 and the horizontal slide groove 23. The width of the bayonet 18 is greater than the width of the horizontal slide groove 23 and the vertical slide groove 22, and is not less than the diameter of the guide member 19. In this way, when the guide member 19 moves from the horizontal slide groove 23 to the bayonet 18, since the width of the bayonet 18 is greater than the width of the horizontal slide groove 23, the guide member 19 drops slightly at the bayonet 18, and the guide member 19 just catches the bayonet 18. At this time, the pull rod 24 and the horizontal plate 26 are just in the same straight line, and the guide member 19 on the end of the pull rod 24 supports the horizontal plate 26. At this time, the machine room door 1 is in the effect of opening 90°, so that the machine room door 1 is in a stable open state, preventing the machine room door 1 from automatically closing back.

[0067] When the rat guard 2 needs to be lowered to the ground, the rat guard 2 drives the pull rod 24 to move downward in the vertical space during the descent process, so that the guide member 19 originally in the bayonet 18 moves downward. At this time, the pull rod 24 moves into the vertical slide groove 22. As the rat guard 2 is gradually lowered underground, the set pull rod 24 slides in the vertical slide groove 22. When the rat guard 2 drops to the lowest position, the guide member 19 on the pull rod 24 is just in the bayonet 18 on the connecting plate 28, and the bayonet 18 continues to support the guide member 19, thereby restricting the closing of the machine room door 1.

[0068] The guide member 19 includes a hexagonal bolt and two limit plates. The pull rod 24 and the two limit plates are all mounted on the hexagonal bolt. The diameter of the limit plate is greater than the width of the horizontal slide groove 23 and the vertical slide groove 22; the width of the vertical slide groove 22 is greater than the width of the pull rod 24, and the diameter of the limit plate is not greater than the width of the bayonet 18; the two limit plates support the hexagonal bolt in the horizontal slide groove 23.

[0069] The guide 19 is provided with two limit plates, the diameter of which is not greater than the width of the horizontal slot 23, to ensure that the hexagonal bolt can be inserted into the horizontal slot 23 and can move in the horizontal slot 23. At the same time, the diameter of the two limit plates arranged on the hexagonal bolt is greater than the width of the horizontal slot 23 and not greater than the width of the slot 18. In this way, when the guide 19 moves in the horizontal slot 23, the two limit plates can be used to support the hexagonal bolt to ensure that the guide 19 is in the horizontal slot 23. When the guide 19 moves to the slot 18, the limit plate can fall from the slot 18, so that the limit plate at the top of the hexagonal bolt is just stuck in the slot 18, thereby achieving support for the machine room door 1 in the horizontal direction.

[0070] It also includes tracks installed on both sides of the mouse guard 2, and the mouse guard 2 can move in the vertical direction within the track; the track includes an upper slide rail and a lower slide rail, and the lower slide rail is pre-buried underground. An electromagnetic limiter 11 is provided between the upper slide rail and the lower slide rail, and the electromagnetic limiter 11 is used to support the mouse guard 2 within the upper slide rail.

[0071] In this embodiment, in order to ensure that the mouse guard 2 can move up and down in the vertical direction, a track is set, and the two sides of the mouse guard 2 are respectively located in the tracks on both sides. The mouse guard 2 can slide up and down in the track, thereby realizing the adjustment of the height of the mouse guard 2 in the vertical direction; at the same time, in order to ensure that the mouse guard 2 is lifted from the ground to the mouse guard working position, the track is set into an upper slide rail and a lower slide rail, wherein the lower slide rail is pre-buried under the ground, and the upper slide rail is fixed above the ground, and it is ensured that the upper slide rail and the lower slide rail are in the same vertical direction. During implementation, the upper slide rail can be fixed to the door frame of the machine room door 1 by fixing parts (such as bolts, etc.), aligned with the lower slide rail, and in the same vertical direction.

[0072] In order to realize the lifting of the mouse guard plate 2 from the lower slide rail to the upper slide rail, the mouse guard plate 2 located at the upper slide rail can be stably fixed at the mouse guard working position, so an electromagnetic limiter 11 is provided between the upper slide rail and the lower slide rail. The electromagnetic limiter can move to the bottom of the mouse guard plate 2 to support the mouse guard plate 2 and prevent the mouse guard plate 2 from sliding down automatically.

[0073] Specifically, the lower slide rail includes a first slide 6 and a second slide 7, and the upper slide rail includes a third slide 8 and a fourth slide 9, wherein the first slide 6 and the third slide 8 are in the same vertical direction, and the second slide 7 and the fourth slide 9 are in the same vertical direction. Two electromagnetic limiters 11 are set, which are respectively located between the first slide 6 and the third slide 8, and between the second slide 7 and the fourth slide 9, thereby supporting both sides of the bottom end of the mouse guard plate 2 in the working mouse guard position, thereby improving the stability of the mouse guard plate 2.

[0074] The electromagnetic limiter 11 includes a spring 14, a fixed block 15, a metal frame 13 and an electromagnet 12. The fixed block 15 is fixedly installed between the upper and lower slide rails and is located in the metal frame 13. The metal frame 13 undergoes a lateral relative displacement with respect to the fixed block 15. One end of the spring 14 is fixed in the metal frame 13, and the other end is connected to the fixed block 15. The upper and lower ends of the fixed block 15 are respectively connected to the upper slide rail and the lower slide rail, and when the electromagnet is energized, the spring is in a compressed state. At this time, the metal frame connected to the spring does not affect the sliding of the mouse guard between the upper and lower slide rails; the spring 14 is used to push the metal frame 13 to move between the upper slide rail and the lower slide rail; the electromagnet 12 is located on one side of the metal frame 13. When the electromagnet 12 is energized, it generates a magnetic force to attract the metal frame 13 to move toward the electromagnet 12 and compress the spring 14.

[0075] In this embodiment, in order to enable the electromagnetic limiter 11 to support the mouse guard 2 located on the upper slide rail, and at the same time, it is also necessary to ensure that the mouse guard 2 can slide smoothly between the upper slide rail and the lower slide rail, the electromagnetic limiter 11 is provided, which includes a spring 14, a fixing block 15, a metal frame 13 and an electromagnet 12, wherein the electromagnetic limiter 11 is a group, one is installed between the bottom of the third slide 8 and the top of the first slide 6, and the other is installed between the bottom of the fourth slide 9 and the top of the second slide 7, and when the electromagnetic limiter is energized, the metal frame 13 is adsorbed close to one side of the electromagnet 12, and its longitudinal space does not affect the up and down movement of the mouse guard 2, and the fixing block 15 is located in the metal frame 13 and is connected to the spring 14. When the spring is in a natural state, since the fixing block 15 is in a fixed state, the elastic force generated by the spring 14 pushes the metal frame 13 to move to the bottom of the mouse guard 2, thereby achieving support for the mouse guard 2.

[0076] When the mouse guard 2 at the mouse guard working position needs to be lowered to the ground, the electromagnet 12 is energized. After being energized, the electromagnet 12 is magnetic and can generate magnetic force on the metal frame 13, driving the metal frame 13 to move toward the electromagnet 12, so that the spring 14 is in a compressed state. When the metal frame 13 is removed from the bottom of the mouse guard 2, the mouse guard 2 loses the supporting force of the metal frame 13. In this state, there is no obstacle between the upper slide rail and the lower slide rail. The mouse guard 2 slides from the upper slide rail to the lower slide rail under the action of gravity, thereby realizing the lowering of the mouse guard 2 and ensuring that the mouse guard 2 can move normally between the upper slide rail and the lower slide rail.

[0077] When the mouse guard 2 rises from the lower rail to the upper rail and is in the mouse guard working position, the electromagnet 12 loses power and loses its magnetic force on the metal frame 13. Under the action of the spring 14, the metal frame 13 moves to the side away from the electromagnet. Its lateral displacement just provides support for the upper end of the mouse guard 2, so that the mouse guard 2 cannot slide down due to gravity.

[0078] The electromagnet 12 in this embodiment is embedded in the left and right door frames, with its lower end aligned with the door frame horizontally. A certain gap is reserved between the electromagnet 12 and the metal frame 13, which is the distance that the metal frame can move laterally.

[0079] It also includes an electromagnetic support rail 10 pre-buried in the ground, the electromagnetic support rail 10 includes a left magnetic rail 16, a right magnetic rail 25 and a magnetic conductive part 5, the left magnetic rail 16 and the right magnetic rail 25 are pre-buried in the ground, the magnetic conductive part 5 is located between the left magnetic rail 16 and the right magnetic rail 25, and the two sides of the magnetic conductive part 5 are in close contact with the left magnetic rail 16 and the right magnetic rail 25 respectively to ensure that the magnetic conductive part 5 can conduct electricity, the magnetic conductive part 5 extends from the gap between the left magnetic rail 16 and the right magnetic rail 25 and contacts the bottom of the mouse guard 2, providing support for the mouse guard 2.

[0080] The left magnetic rail 16 and the right magnetic rail 25 are obtained by cutting a magnetic metal tube into two along the axis; the left magnetic rail 16 and the right magnetic rail 25 are provided with arc grooves on the planes facing each other; both sides of the magnetic conductive member 5 are arc structures, the front end of the magnetic conductive member 5 extends from the gap between the left magnetic rail 16 and the right magnetic rail 25, and the two sides of the magnetic conductive member 5 are respectively located in the arc grooves of the left magnetic rail 16 and the right magnetic rail 25.

[0081] The surface of the front end protruding portion of the magnetic conductive member 5 is coated with an insulating layer; the outer wall surfaces of the left magnetic rail 16 and the right magnetic rail 25 are also coated with an insulating layer.

[0082] In this embodiment, in order to enable the mouse guard 2 to move from the lower slide rail to the upper slide rail, an electromagnetic support rail 10 is provided, wherein the left magnetic rail 16 and the right magnetic rail 25 are pre-buried underground, and a magnetic conductive member 5 is provided between the left magnetic rail 16 and the right magnetic rail 25. There is a certain gap between the left magnetic rail 16 and the right magnetic rail 25 so that the front end of the magnetic conductive member 5 is connected to the mouse guard 2 through the gap.

[0083] An interception bar 17 is further provided between the tops of the left magnetic rail 16 and the right magnetic rail 25 to prevent the magnetic conductive member 5 from going beyond the electromagnetic support rail 10 under the action of the electromagnetic force.

[0084] In this embodiment, the electromagnetic support rail 10 drives the magnetic member 5 to move vertically upward. During this movement, the magnetic member 5 also drives the mouse guard 2, thereby raising the mouse guard 2 from the lower rail to the upper rail and moving the mouse guard 2 to its working position. The specific principle is as follows: A current-carrying conductor in a magnetic field is subject to a force due to magnetic field induction. Increasing the current flowing through the object increases the magnetic field, and the current-carrying conductor is subject to a greater force in the magnetic field. When a current-carrying object moves in a magnetic field, the direction of the force acting on it is affected by both the current and the magnetic field. According to the left-hand rule for determining the direction of the Ampere force, extend your left hand and place your thumb, index finger, and middle finger at a 90-degree angle. Place your palm between the magnetic poles, with the magnetic lines of force perpendicular to the center of your palm. When your index finger points in the direction of the magnetic field, the middle finger points in the direction of the current. The direction of your thumb indicates the direction of the force acting on the conductor in the magnetic field.

[0085] When direct current flows through the left and right magnetic rails 16 and 25 of the electromagnetic support rail 10, an electromagnetic field is generated. The right-hand rule is used to determine the magnetic field (this rule applies to the magnetic field generated by direct current and long straight wires, and is applicable to this embodiment): With your right thumb pointing in the direction of the current and your four fingers holding the wire, the direction of the electromagnetic field corresponds to the direction of the four fingers. Therefore, to move the magnetic member 5 upward, a north-to-south magnetic field must be created between the left and right magnetic rails 16 and 25. Direct current is applied to both rails, with positive current input from the left magnetic rail 16. This current flows through the magnetic member 5, which is in close contact with the left and right magnetic rails, and negative current is output from the right magnetic rail 25. This creates a north-to-south magnetic field between the left and right magnetic rails. When current flows through the magnetic member 5, according to the left-hand rule, the magnetic member 5 is subjected to an upward force, causing it to move upward. The extended front end of the magnetic member 5 then contacts the mouse guard, driving the guard upward.

[0086] During the manufacturing process, due to the wide variety of materials used to manufacture the mouse guard, an insulating coating is applied to the surface of the metal mouse guard 2, extending from the front end of the magnetic conductive element 5. The outer surfaces of the left and right magnetic tracks 16 and 25 are also coated with an insulating coating to prevent the metal mouse guard 2 from conducting electricity during power supply. Furthermore, the different materials used in the manufacture of the mouse guard 2 can lead to varying weights. However, increasing the current of the electromagnetic support rails 10 or increasing the number of electromagnetic support rails 10 can support heavier mouse guards 2. Furthermore, a blocking bar 17 is located at the top of each set of electromagnetic support rails to limit the travel of the magnetic conductive element 5.

[0087] When the electromagnetic support rail 10 and the electromagnetic limit member 11 are used in conjunction with each other, they are both powered by a DC power supply. The left magnetic rail 16 and the right magnetic rail 25 are energized at the same time as the electromagnet 12 in the electromagnetic limit member 11. The electromagnetic limit member 11 is adsorbed and retracted, so that there is no obstacle between the upper and lower sets of slide rails. The mouse guard 2 can move freely upward along the slide rails. When it moves to the top end, the electromagnet 12 in the electromagnetic limit member 11 loses power first, so that the metal frame 13 is laterally displaced under the action of the elastic force of the spring 14, supporting the upper end of the mouse guard 2 to prevent it from falling. At this time, the electromagnetic support rail 10 loses power again, and the mouse guard 2 is already in the working mouse-blocking position and maintains the state through physical means, so it has the characteristics of low energy consumption and stable state.

[0088] The rat guard designed in the present invention can be electrically lowered when necessary to facilitate access; the door is locked in the rat-blocking position when closed. In general buildings, the location of equipment rooms is relatively fixed, so a foundation pit can be reserved during the architectural design phase to facilitate the use and installation of the device, which can be used permanently after installation. In the current market, the fixed stop device and rat guard of the machine room door are used separately and are not integrated. For machine rooms with rat guards, the door stop device is often impossible to install or can only be installed at the top of the door, which is inconvenient to use. The present invention integrates the door stop device and the rat guard, and can electrically perform their functions, with low energy consumption and convenient use.

[0089] This technical solution can mainly achieve three working states, as follows:

[0090] The first working state: when the machine room door 1 is locked, the mouse guard plate 2 is in the working mouse guard state (upper support state).

[0091] The second working state: when the machine room door 1 is opened, the mouse guard 2 is in the sunken state.

[0092] The third working state: when the machine room door 1 is opened, the mouse guard plate 2 is in the working mouse guard state.

[0093] The three states of the present invention meet the requirements that the mouse guard must be located at the mouse guard working position when the machine room door is locked; the mouse guard can sink when the door is opened to facilitate the entry of personnel or equipment; or the mouse guard is located at the mouse guard working position when the door is open.

[0094] The mouse guard 2, the door stopper 3, the electromagnetic support rail 10 and the electromagnetic limiter 11 need to cooperate with each other when the three states are switched.

[0095] In the first case: when the machine room door 1 is locked, the mouse guard 2 must be in the mouse-blocking state and cannot sink. Therefore, the door support limiter 3 fixed on the mouse guard 2 in the invention ensures that the mouse guard 2 must be in the working position when the machine room door 1 is closed, otherwise the door cannot be closed.

[0096] In the second and third states, when the door is open, the mouse guard 2 can be switched between the working position and the sunken position, which is convenient for people to enter and exit, and for transporting items and installing equipment. The present invention integrates the door limit device and the mouse guard 2 so that they can work together and realize their functions electrically, avoiding the difficulty of manually dismantling or assembling the mouse guard 2.

[0097] Example 2

[0098] A method for controlling a mouse-blocking device used in a computer room comprises the following steps:

[0099] 1) Open the machine room door 1, and the guide member 19 on the pull rod 24 moves along the horizontal slide groove 23 to the bayonet 18 at the end of the horizontal slide groove 23 to support the machine room door 1;

[0100] 2) Power is supplied to the electromagnet 12 of the electromagnetic limiter 11. The electromagnet 12 generates a magnetic force that attracts the metal frame 13 to move toward the electromagnet 12. The mouse guard 2 descends from the mouse-blocking working position to the ground. As the mouse guard 2 descends, the guide 19 on the pull rod 24 moves into the slot 18 on the connecting plate 28. At this time, the machine room door 1 cannot be closed.

[0101] 3) After the operator completes the operation, a direct current is applied to the electromagnetic support rail 10, forming a magnetic field between the left magnetic rail 16 and the right magnetic rail 25. Under the action of the magnetic field, the magnetic conductive member 5 moves from bottom to top, lifting the mouse guard 2 to the mouse guard working position of the machine room door 1. The pull rod 24 on the mouse guard 2 moves along the vertical slide groove 22 to the horizontal slide groove 23;

[0102] 4) When the mouse guard 2 moves to the mouse guard working position of the machine room door 1, the power supply of the electromagnetic limiter 11 is disconnected, and the metal frame 13 moves to the bottom of the mouse guard 2 under the action of the spring 14 to support the mouse guard 2.

[0103] 5) Close the machine room door 1. When the machine room door 1 is closed, the guide member 19 on the pull rod 24 moves in the horizontal sliding groove 23.

[0104] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mouse-blocking device for use in a computer room, characterized in that: The invention comprises a rat guard (2), wherein two sides of the rat guard (2) are provided with tracks for providing the rat guard (2) with lifting and lowering capabilities, and the tracks are provided with electromagnetic limiting members (11), and when the electromagnetic limiting members (11) are powered off, they can limit the rat guard (2) from lifting and lowering within the tracks; It also includes an electromagnetic support rail (10), the electromagnetic support rail (10) including a left magnetic rail (16), a right magnetic rail (25) and a magnetic conductive member (5), the left magnetic rail (16) and the right magnetic rail (25) are pre-buried underground, the magnetic conductive member (5) is located between the left magnetic rail (16) and the right magnetic rail (25), and is in contact with the left magnetic rail (16) and the right magnetic rail (25), the magnetic conductive member (5) is connected to the mouse guard (2), and when positive and negative currents are respectively passed through the left magnetic rail (16) and the right magnetic rail (25), the magnetic conductive member (5) can drive the mouse guard (2) to rise in the track; in, The mouse guard plate (2) is provided with a door stopper (3) connected to the machine room door (1), and the door stopper (3) includes a pull rod (24) and a connecting piece, and the connecting piece is fixed to the machine room door (1). The connecting piece is provided with a vertically connected horizontal slide groove (23) and a vertical slide groove (22), and the horizontal slide groove (23) is located above the vertical slide groove (22). One end of the pull rod (24) is hinged to the mouse guard plate (2), and the other end is slidably connected to the horizontal slide groove (23) or the vertical slide groove (22). The horizontal slide groove (23) is used to change the position of the pull rod (24) in the horizontal direction, and the vertical slide groove (22) is used to change the position of the pull rod (24) in the vertical direction. The connecting member comprises a horizontal plate (26) and a vertical plate (27), one end of the vertical plate (27) is connected to the horizontal plate (26), and the other end is provided with a connecting plate (28), the horizontal plate (26) and the connecting plate (28) are both provided with convex edges, and the convex edges are provided with first fixing bolts (20) for connecting to the machine room door (1); the horizontal sliding groove (23) is located on the horizontal plate (26); the vertical sliding groove (22) is located on the vertical plate (27); A second fixing bolt (21) is provided on one end of the pull rod (24), and the second fixing bolt (21) is used to connect with the mouse guard (2); a guide member (19) is provided on the other end of the pull rod (24), and the guide member (19) is used to be slidably connected with the horizontal slide groove (23); the vertical slide groove (22) is provided with a bayonet (18) at the connection point with the horizontal slide groove (23) and the connecting plate (28), the width of the horizontal slide groove (23) and the vertical slide groove (22) are both smaller than the width of the bayonet (18), and the diameter of the guide member (19) is not larger than the width of the bayonet (18).

2. The rat-proof device for use in a computer room according to claim 1, characterized in that: The track includes an upper slide rail and a lower slide rail; The electromagnetic limiting member (11) comprises a spring (14), a fixed block (15), a metal frame (13) and an electromagnet (12); the fixed block (15) is fixedly installed between the upper and lower slide rails and is located in the metal frame (13); the metal frame (13) is laterally displaced relative to the fixed block (15); One end of the spring (14) is fixed in the metal frame (13), and the other end is connected to the fixed block (15). The upper and lower ends of the fixed block (15) are respectively connected to the upper slide rail and the lower slide rail. When the electromagnet (12) is energized, the spring (14) is in a compressed state. At this time, the metal frame (13) connected to the spring (14) does not affect the sliding of the mouse guard (2) between the upper and lower slide rails. The spring (14) is used to push the metal frame (13) to move to the vertical direction where the mouse guard (2) is located; The electromagnet (12) is located on one side of the metal frame (13). When the electromagnet (12) is energized, it generates a magnetic force to attract the metal frame (13) to move toward the electromagnet (12) and compress the spring (14).

3. The rat-proof device for use in a computer room according to claim 1, characterized in that: The left magnetic track (16) and the right magnetic track (25) are obtained by cutting the magnetic metal tube into two along the axis; The left magnetic track (16) and the right magnetic track (25) are provided with arc-shaped grooves on their planes facing each other; Both sides of the magnetic conductive member (5) are respectively located in the arc-shaped grooves of the left magnetic track (16) and the right magnetic track (25), and are in contact with the inner walls of the arc-shaped grooves.

4. The rat-proof device for use in a computer room according to claim 1, characterized in that: The magnetic conductive member (5) has a protrusion, and the protrusion passes through the gap between the left magnetic rail (16) and the right magnetic rail (25) and is connected to the mouse guard plate (2); The surface of the raised portion is coated with an insulating layer; The outer wall surfaces of the left magnetic track (16) and the right magnetic track (25) are also coated with an insulating layer.

5. The rat-proof device for use in a computer room according to claim 1, characterized in that: An interception bar (17) is further provided between the tops of the left magnetic track (16) and the right magnetic track (25).

6. The rat-proof device for use in a computer room according to claim 1, characterized in that: The guide member (19) includes a hexagonal bolt and two limiting plates. The pull rod (24) and the two limiting plates are sleeved on the hexagonal bolt. The diameter of the limiting plate is greater than the width of the horizontal slide groove (23) and the vertical slide groove (22). The width of the vertical slide groove (22) is greater than the width of the pull rod (24). The diameter of the limiting plate is not greater than the width of the bayonet (18). The two limiting plates support the hexagonal bolt in the transverse sliding groove (23).

7. A method for controlling a mouse-blocking device for use in a computer room according to any one of claims 1 to 6, characterized in that: The following steps are involved: 1) Open the machine room door (1), and the guide member (19) on the pull rod (24) moves along the horizontal slide groove (23) to the bayonet (18) at the end of the horizontal slide groove (23) to support the machine room door (1); 2) The electromagnet (12) of the electromagnetic limiter (11) is energized, and the electromagnet (12) generates a magnetic force to attract the metal frame (13) to move toward the electromagnet (12), and the mouse guard (2) is lowered from the mouse guard working position to the ground. When the mouse guard (2) is lowered, the guide (19) on the pull rod (24) moves into the bayonet (18) at the connecting plate (28), and the machine room door (1) cannot be closed at this time; 3) After the operator completes the operation, direct current is applied to the electromagnetic support rail (10), so that a magnetic field is formed between the left magnetic rail (16) and the right magnetic rail (25). Under the action of the magnetic field, the magnetic conductive member (5) moves from bottom to top, lifting the mouse guard (2) to the mouse guard working position of the machine room door (1). The pull rod (24) on the mouse guard (2) moves along the vertical slide groove (22) to the horizontal slide groove (23); 4) When the mouse guard plate (2) moves to the mouse guard working position of the machine room door (1), the power supply of the electromagnetic limiter (11) is disconnected, and the metal frame (13) moves to the bottom of the mouse guard plate (2) under the action of the spring (14) to support the mouse guard plate (2); 5) Close the machine room door (1). When the machine room door (1) is closed, the guide member (19) on the pull rod (24) moves in the horizontal slide groove (23).

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