A monitoring mechanism for electric energy storage equipment

Abstract

The present invention belongs to the technical field of energy storage device detection, and specifically discloses a monitoring mechanism for electric energy storage equipment, including an energy storage cabinet, wherein a plurality of fixed plates are fixedly connected inside the energy storage cabinet, a monitoring device is fixedly connected to the top of one of the fixed plates, a liquid cooling plate is fixedly installed on the top of the monitoring device, both ends of the liquid cooling plate are fixedly connected to liquid cooling pipes, a plurality of connectors are fixedly connected to one side of the outer wall of the monitoring device, a wire is clamped inside the connector, and a heat dissipation component and an adaptive component are further included, a heat transfer plate is fixedly connected to the bottom of the liquid cooling plate, and in the present invention, by arranging the heat dissipation component, the connection between the connector and the wire can be dissipated without affecting the sealing, the heat taken away is converted into the liquid cooling plate through the heat transfer plate, and added to the heat circulation of the liquid cooling plate, and at the same time, because part of the heat is conducted, the air discharged during the heat dissipation process will not have a significant impact on the temperature in the cabinet.

Description

Technical Field

[0001] The invention belongs to the field of energy storage device detection, and specifically discloses a monitoring mechanism for electric energy storage equipment. Background Art

[0002] An energy storage cabinet is a device used to store and release electrical energy. It usually integrates a battery pack, a battery management system (BMS), a thermal management system, a fire protection system, etc. to form a highly integrated system that can provide backup power for industrial and commercial electricity use, and support peak-valley load regulation, grid peak shaving and valley filling, and other application scenarios. With the advancement of technology, liquid cooling technology has gradually been applied to energy storage cabinets to reduce the internal temperature of the equipment through liquid circulation. Compared with air cooling, this method has higher heat conduction efficiency and better temperature control capabilities.

[0003] In a liquid cooling system, the temperature in the cabinet is often higher than that of the liquid cooling plate, causing condensed water in the air to adhere to the liquid cooling plate. As the air circulates continuously, the air humidity in the cabinet is likely to gradually increase. Therefore, waterproof connectors are generally used in energy storage cabinets that use liquid cooling technology. The monitoring equipment used to monitor the internal conditions of the energy storage is connected to a large number of lines that use waterproof connectors. These waterproof connectors themselves are not easy to dissipate heat due to their good sealing properties, so they will generate temperature during operation. A large number of connectors gathered together further increase the regional temperature.

[0004] In order to solve the above-mentioned problems, the prior art generally adopts a set of air cooling components inside the monitoring device to dissipate heat in its connection area. The temperature in the connection area is taken away by the wind and blown to other areas. However, this will increase the temperature inside the cabinet, and further increase the temperature difference between the temperature inside the cabinet and the temperature of the liquid cooling plate and the liquid cooling pipe, which is more conducive to the spread of moisture, making the cabinet more humid, which is not conducive to the electrical components in the cabinet requiring a dry use environment. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to propose a monitoring mechanism for electric energy storage equipment to solve the problem of poor heat dissipation effect of the monitoring device in the prior art.

[0006] To achieve the above purpose, the present invention provides a monitoring mechanism for electric energy storage equipment, including an energy storage cabinet, wherein a plurality of fixed plates are fixedly connected inside the energy storage cabinet, a monitoring device is fixedly connected to the top of one of the fixed plates, a liquid cooling plate is fixedly installed on the top of the monitoring device, both ends of the liquid cooling plate are fixedly connected to liquid cooling pipes, a plurality of connectors are fixedly connected to one side of the outer wall of the monitoring device, a wire is clamped inside the connector, and a heat dissipation component and an adaptive component are also included, a heat transfer plate is fixedly connected to the bottom of the liquid cooling plate, the heat dissipation component is used to dissipate heat at the connection between the wire and the connector, the heat dissipation component is respectively connected to the connector and the wire, the adaptive component is used to cooperate with the wire to adjust the heat dissipation capacity of the heat dissipation component, and the adaptive component is connected to the heat dissipation component.

[0007] In the above technical scheme, preferably, the heat dissipation assembly includes a fixed frame fixedly connected to the outside of the monitoring device, one side of the fixed frame is fixedly connected to a cooling part, and the wire is inserted and fixedly connected to the inside of the cooling part, the top of the cooling part is fixedly connected to an exhaust part, an exhaust port is opened on one side of the outer wall of the exhaust part, a plurality of heat dissipation ribs are inserted and fixedly connected to the inside of the exhaust part, and the heat dissipation ribs are fixedly connected to one side of the outer wall of the heat transfer plate, the bottom of the cooling part is connected to an adjustment part, the bottom of the adjustment part is fixedly connected to a connecting part, the bottom of the connecting part is fixedly connected to an air producing part, the bottom of the air producing part is fixedly connected to a filter plate, the inside of the air producing part is fixedly connected to an installation frame, and a plurality of fan modules are arranged on the inner side of the installation frame.

[0008] In the above technical solution, preferably, a plurality of partitions are fixedly connected inside the cooling part, an air outlet is provided at the top of the cooling part, an air inlet is provided at the bottom of the cooling part, the air outlet and the exhaust part are staggered, a wire clamp is fixedly connected to one side of the partition, and when the wire clamp clamps the wire, the wire is in a bent state.

[0009] In the above technical solution, preferably, a plurality of mounting plates corresponding to the connecting head are fixedly connected to one side of the outer wall of the cooling part, and the mounting plates are inserted and fixedly connected to the inside thereof by the wires, a plug hole is opened on the outer wall of the mounting plates, and a waterproof block is sleeved and fixedly connected to the outer wall of the wires.

[0010] In the above technical solution, preferably, an inserting plate is inserted and slidably connected inside the mounting plate, and two locking holes are provided on an outer wall of the inserting plate.

[0011] In the above technical solution, preferably, a plurality of compartments are provided inside the adjustment portion, and two oppositely arranged shielding blocks are fixedly connected inside each of the compartments, and an inclined surface is provided at one end of the shielding block.

[0012] In the above technical solution, preferably, the adaptive component includes a movable part fixedly connected to one side of the outer wall of the adjustment part, a number of protruding square columns corresponding to the number of the connecting heads are inserted and slidably connected inside the movable part, a driving rod is fixedly connected to the bottom of the protruding square column, a limiting block is fixedly connected to the outer wall of the driving rod, a support plate is inserted and slidably connected to the outer wall of the driving rod, and the support plate is fixedly connected to one side of the outer wall of the connecting part, a spring is fixedly connected between the support plate and the limiting block, a closing block is fixedly connected to one side of the outer wall of the protruding square column through an extension plate, and the closing block is slidably connected to the outer wall of the adjustment part, and a sealing piece is fixedly connected to one side of the closing block.

[0013] In the above technical solution, preferably, the sealing member includes a connecting plate fixedly connected to one side of the outer wall of the closing block, the upper and lower sides of the connecting plate are fixedly connected with support columns, the ends of the support columns are fixedly connected with guide plates, the shape of the guide plates is V-shaped, and the guide plates are elastic structures.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the above technical solution, by setting a heat dissipation component, the connection between the connector and the wire can be cooled without affecting the sealing. The heat taken away is converted into the liquid cooling plate through the heat transfer plate and added to the heat cycle of the liquid cooling plate. At the same time, since part of the heat is conducted, the air discharged during the heat dissipation process will not have a significant impact on the temperature in the cabinet.

[0016] By setting up an adaptive component, the passage of wind in the connector area where no wires are inserted is limited without interfering with the heat dissipation of the heat dissipation component. At this time, the wind force is concentrated in other areas, and the wind force is more concentrated, resulting in a better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of the present invention installed in an energy storage cabinet;

[0018] Figure 2 It is a schematic diagram of the structure of the liquid cooling plate of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the present invention;

[0020] Figure 4 It is a schematic diagram of the internal structure of the cooling part of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the mounting plate and the plugging plate cooperating with each other in the present invention;

[0022] Figure 6 It is a schematic diagram of the internal structure of the exhaust part of the present invention;

[0023] Figure 7 It is a schematic diagram of the internal structure of the movable part of the present invention;

[0024] Figure 8 It is a schematic diagram of the internal structure of the adjustment part of the present invention;

[0025] Fig. 9 It is a schematic diagram of the ventilation structure of the adjustment part of the present invention;

[0026] Fig.10 It is a schematic diagram of the closed structure of the adjustment part of the present invention;

[0027] Fig.11 It is a schematic diagram of the internal structure of the air-generating part of the present invention.

[0028] In the figure: 1. Energy storage cabinet; 2. Fixing plate; 3. Monitoring device; 4. Liquid cooling plate; 5. Liquid cooling pipe; 6. Heat transfer plate; 7. Fixing frame; 8. Cooling part; 9. Exhaust part; 10. Exhaust port; 11. Wire; 12. Adjustment part; 13. Movable part; 14. Mounting plate; 15. Connector; 16. Air inlet; 17. Waterproof block; 18. Air outlet; 19. Partition plate; 20. Wire clamp; 21. Plug plate; 22. Locking hole; 23. Plug hole; 24. Heat dissipation rib; 25. Air-generating part; 26. Connecting part; 27. Extending square column; 28. Driving rod; 29. ​​Closing block; 30. Support plate; 31. Spring; 32. Limiting block; 33. Blocking block; 34. Guide plate; 35. Connecting plate; 36. Support column; 37. Inclined surface; 38. Fan module; 39. Mounting frame; 40. Filter plate. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] like Figure 1-Figure 11A monitoring mechanism for an electric energy storage device shown in the figure includes an energy storage cabinet 1, wherein a plurality of fixed plates 2 are fixedly connected inside the energy storage cabinet 1, wherein a monitoring device 3 is fixedly connected to the top of one of the fixed plates 2, a liquid cooling plate 4 is fixedly installed on the top of the monitoring device 3, and both ends of the liquid cooling plate 4 are fixedly connected to liquid cooling pipes 5, a plurality of connectors 15 are fixedly connected to one side of the outer wall of the monitoring device 3, a wire 11 is clamped inside the connector 15, and a heat dissipation component and an adaptive component are also included.

[0032] The interior of the energy storage cabinet 1 is monitored by setting a monitoring device 3, the connection between the connector 15 and the wire 11 is cooled by setting a heat dissipation component, and the heat dissipation component is adjusted by setting an automatic adaptation component.

[0033] The heat dissipation component is used to dissipate heat at the connection between the wire 11 and the connector 15. The heat dissipation component is connected to the connector 15 and the wire 11 respectively. The heat dissipation component includes a fixed frame 7 fixedly connected to the outside of the monitoring device 3. A cooling part 8 is fixedly connected to one side of the fixed frame 7, and the wire 11 is inserted and fixedly connected to the inside of the cooling part 8. An exhaust part 9 is fixedly connected to the top of the cooling part 8. An exhaust port 10 is opened on one side of the outer wall of the exhaust part 9. A plurality of heat dissipation ribs 24 are inserted and fixedly connected to the inside of the exhaust part 9, and the heat dissipation ribs 24 are fixedly connected to one side of the outer wall of the heat transfer plate 6. The bottom of the cooling part 8 is connected to the adjustment part 12. The bottom of the adjustment part 12 is fixedly connected to the connection part 26. The bottom of the connection part 26 is fixedly connected to the air producing part 25. The bottom of the air producing part 25 is fixedly connected to the filter plate 40. The inside of the air producing part 25 is fixedly connected to the installation frame 39. A plurality of fan modules 38 are arranged on the inner side of the installation frame 39.

[0034] After being energized, the fan modules 38 located inside the air-generating section 25 generate wind energy and attract air to enter the air-generating section 25, enter the adjusting section 12 through the connecting section 26, and then enter the cooling section 8 through the air inlet 16. The air wanders inside the cooling section 8 and takes away the heat generated at the connection between the connector 15 and the wire 11, and then enters the exhaust section 9 through the air outlet 18. After part of the heat is absorbed by the heat dissipation ribs 24, the air is discharged from the exhaust port 10 to the inside of the energy storage cabinet 1, completing the air circulation. The heat of the heat dissipation ribs 24 is transferred to the liquid cooling plate 4 and added to the temperature cycle of the liquid cooling plate 4. By setting a heat dissipation component, the connection between the connector 15 and the wire 11 can be cooled without affecting the sealing. The heat taken away is converted into the liquid cooling plate 4 through the heat transfer plate 6 and added to the heat cycle of the liquid cooling plate 4. At the same time, since part of the heat is transferred, the air discharged during the heat dissipation process will not have a significant impact on the temperature in the cabinet.

[0035] A plurality of partitions 19 are fixedly connected to the interior of the cooling portion 8, an air outlet 18 is provided at the top of the cooling portion 8, an air inlet 16 is provided at the bottom of the cooling portion 8, the air outlet 18 and the exhaust portion 9 are staggered, a wire clamp 20 is fixedly connected to one side of the partition 19, and when the wire clamp 20 clamps the wire 11, the wire 11 is in a bent state.

[0036] By setting the partition 19 to form a closed space, it is ensured that the air is circulated based on the air outlet 18 and the air inlet 16, thereby ensuring the circulation path, and the heat will not be transmitted to each other and then accumulated together. By staggering the air outlet 18 and the air inlet 16, the air circulation time is extended to take away more heat. By setting the wire clamp 20, it is ensured that the wire 11 is in a bent state inside the cooling part 8, occupying more space inside the cooling part 8, so that the heat dissipation effect is better.

[0037] A plurality of mounting plates 14 corresponding to the connectors 15 are fixedly connected to one side of the outer wall of the cooling portion 8, and the mounting plates 14 are inserted and fixedly connected to the inside by the wires 11, a plug hole 23 is provided on the outer wall of the mounting plates 14, a waterproof block 17 is sleeved and fixedly connected to the outer wall of the wires 11, a plug plate 21 is inserted and slidably connected to the inside of the mounting plates 14, and two locking holes 22 are provided on the outer wall of the plug plate 21.

[0038] Through this design, the connection between the wire 11 and the cooling part 8 is sealed to achieve a waterproof insulation effect. By setting the plug plate 21, the internal sealing of the cooling part 8 is maintained. The connection between the wire 11 and the cooling part 8 is sealed by the mounting plate 14. When the wire 11 is not inserted into the mounting plate 14, the plug plate 21 is pressed to block the insertion hole 23, and then fixed by the locking hole 22.

[0039] The adjusting portion 12 is provided with a plurality of compartments inside, and two shielding blocks 33 arranged opposite to each other are fixedly connected inside each of the compartments. An inclined surface 37 is provided at one end of the shielding block 33 .

[0040] By setting the shielding block 33 to block the air duct, the size of the air duct is reduced, the wind is concentrated in one place, and the pressure is increased. After passing through the shielding block 33, the pressure is reduced and a faster flow rate is formed. Through this design, the heat dissipation effect of the connection between the wire 11 and the connector 15 can be improved.

[0041] The bottom of the liquid cooling plate 4 is fixedly connected to a heat transfer plate 6, the adaptive component is used to cooperate with the wire 11 to adjust the heat dissipation capacity of the heat dissipation component, the adaptive component is connected to the heat dissipation component, the adaptive component includes a movable part 13 fixedly connected to one side of the outer wall of the adjustment part 12, a plurality of protruding square columns 27 corresponding to the number of the connectors 15 are inserted and slidably connected inside the movable part 13, a driving rod 28 is fixedly connected to the bottom of the protruding square column 27, the outer wall of the driving rod 28 is fixedly connected to a limiting block 32, the outer wall of the driving rod 28 is inserted and slidably connected to a support plate 30, and the support plate 30 is fixedly connected A spring 31 is fixedly connected between the support plate 30 and the limit block 32 and connected to one side of the outer wall of the connecting portion 26. A closing block 29 is fixedly connected to one side of the outer wall of the protruding square column 27 through an extension plate, and the closing block 29 is slidably connected to the outer wall of the adjusting portion 12. A blocking member is fixedly connected to one side of the closing block 29, and the blocking member includes a connecting plate 35 fixedly connected to one side of the outer wall of the closing block 29. Support columns 36 are fixedly connected to the upper and lower sides of the connecting plate 35. A guide plate 34 is fixedly connected to the end of the support column 36. The guide plate 34 is V-shaped and has an elastic structure.

[0042] A waterproof block 17 is installed outside the wire 11, and then the square column 27 is extended under the push of the spring 31 and is tightly against the waterproof block 17. At this time, the deflector 34 is away from the two blocking blocks 33 due to the obstruction of the waterproof block 17, and the wind can pass smoothly. When the extended square column 27 is not blocked by the waterproof block 17, the limit block 32 is tightly against the connecting part 26 under the push of the spring 31. At this time, the deflector 34 is away from the two blocking blocks 33 due to the obstruction of the waterproof block 17, and the wind can pass smoothly. When the extended square column 27 is not blocked by the waterproof block 17, the spring The lower limit block 32 pushed by 31 is tightly against the connecting part 26. At this time, the guide plate 34 is driven to rise and squeezed between the two blocking blocks 33, wherein the guide plate 34 shrinks along the inclined surface 37 and blocks the air duct. At this time, the wind force is concentrated in the air duct connected with the wire 11, completing the adaptation and centralized utilization of the wind force. By setting the adaptive component, the passage of wind in the area of ​​the connector 15 where the wire 11 is not inserted is limited without interfering with the heat dissipation of the heat dissipation component. At this time, the wind force is concentrated in other areas, and the wind force is more concentrated, so that the heat dissipation effect is better.

[0043] The working principle provided by the present invention is:

[0044] In the present invention, a plurality of fan modules 38 located inside the air-generating part 25 generate wind energy after being powered on, and attract air to enter the air-generating part 25, enter the adjusting part 12 through the connecting part 26, and then enter the cooling part 8 from the air inlet 16, wander inside the cooling part 8 and take away the heat generated at the connection between the connector 15 and the wire 11, and then enter the exhaust part 9 from the air outlet 18, and part of the heat is absorbed by the heat dissipation ribs 24, and then discharged from the exhaust port 10 to the inside of the energy storage cabinet 1, completing the air circulation, wherein the heat of the heat dissipation ribs 24 is conducted to the liquid cooling plate 4, and added to the temperature cycle of the liquid cooling plate 4;

[0045] In order to maintain the internal sealing of the cooling part 8, the connection between the wire 11 and the cooling part 8 is sealed by the mounting plate 14, wherein when the wire 11 is not inserted into the mounting plate 14, the plug plate 21 is pressed to block the plug hole 23, and then fixed by the locking hole 22;

[0046] In order to concentrate the wind force, a waterproof block 17 is installed on the outside of the wire 11, and then the square column 27 is extended under the push of the spring 31 to tightly abut against the waterproof block 17. At this time, the deflector 34 is blocked by the waterproof block 17 and is away from the two blocking blocks 33, so that the wind can pass smoothly. When the extended square column 27 is not blocked by the waterproof block 17, the limit block 32 is tightly abutted against the connecting part 26 under the push of the spring 31. At this time, the deflector 34 is driven to rise and squeezed between the two blocking blocks 33, wherein the deflector 34 shrinks along the inclined surface 37 and blocks the air duct. At this time, the wind force is concentrated in the air duct connected to the wire 11, completing the adaptation and centralized utilization of the wind force.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A monitoring mechanism for an electric energy storage device, comprising an energy storage cabinet (1), wherein a plurality of fixed plates (2) are fixedly connected inside the energy storage cabinet (1), wherein a monitoring device (3) is fixedly connected to the top of one of the fixed plates (2), a liquid cooling plate (4) is fixedly installed on the top of the monitoring device (3), both ends of the liquid cooling plate (4) are fixedly connected to liquid cooling pipes (5), a plurality of connectors (15) are fixedly connected to one side of an outer wall of the monitoring device (3), and a wire (11) is clamped inside the connector (15), characterized in that: It also includes a heat dissipation component and an adaptive component, and the bottom of the liquid cooling plate (4) is fixedly connected to a heat transfer plate (6); The heat dissipation component is used to dissipate heat at the connection between the wire (11) and the connector (15), and the heat dissipation component is connected to the connector (15) and the wire (11) respectively; The adaptive component is used to cooperate with the wire (11) to adjust the heat dissipation capacity of the heat dissipation component, and the adaptive component is connected to the heat dissipation component; The heat dissipation assembly comprises a fixed frame (7) fixedly connected to the outside of the monitoring device (3); one side of the fixed frame (7) is fixedly connected to a cooling portion (8); the wire (11) is inserted and fixedly connected to the inside of the cooling portion (8); the top of the cooling portion (8) is fixedly connected to an exhaust portion (9); an exhaust port (10) is provided on one side of the outer wall of the exhaust portion (9); a plurality of heat dissipation ribs (24) are inserted and fixedly connected to the inside of the exhaust portion (9); and the heat dissipation ribs (24) are fixedly connected to one side of the outer wall of the heat transfer plate (6); the bottom of the cooling portion (8) is connected to an adjustment portion (12); the bottom of the adjustment portion (12) is fixedly connected to a connecting portion (26); the bottom of the connecting portion (26) is fixedly connected to an air generating portion (25); the bottom of the air generating portion (25) is fixedly connected to a filter plate (40); the inside of the air generating portion (25) is fixedly connected to a mounting frame (39); and a plurality of fan modules (38) are arranged on the inner side of the mounting frame (39); The adaptive component comprises a movable portion (13) fixedly connected to one side of an outer wall of the adjustment portion (12); a plurality of protruding square columns (27) corresponding in number to the number of the connecting heads (15) are inserted and slidably connected inside the movable portion (13); a driving rod (28) is fixedly connected to the bottom of the protruding square column (27); a limiting block (32) is fixedly connected to the outer wall of the driving rod (28); a supporting plate (30) is inserted and slidably connected to the outer wall of the driving rod (28); the supporting plate (30) is fixedly connected to one side of the outer wall of the connecting portion (26); a spring (31) is fixedly connected between the supporting plate (30) and the limiting block (32); a closing block (29) is fixedly connected to one side of the outer wall of the protruding square column (27) via an extension plate; the closing block (29) is slidably connected to the outer wall of the adjustment portion (12); and a blocking piece is fixedly connected to one side of the closing block (29).

2. A monitoring mechanism for electric energy storage equipment according to claim 1, characterized in that: A plurality of partitions (19) are fixedly connected inside the cooling portion (8), an air outlet (18) is provided at the top of the cooling portion (8), an air inlet (16) is provided at the bottom of the cooling portion (8), the air outlet (18) and the exhaust portion (9) are staggered, a wire clamp (20) is fixedly connected to one side of the partition (19), and when the wire clamp (20) clamps the wire (11), the wire (11) is in a bent state.

3. A monitoring mechanism for electric energy storage equipment according to claim 1, characterized in that: A plurality of mounting plates (14) corresponding to the connectors (15) are fixedly connected to one side of the outer wall of the cooling portion (8), and the mounting plates (14) are inserted by the wires (11) and fixedly connected to the inside thereof; a plug hole (23) is provided on the outer wall of the mounting plates (14), and a waterproof block (17) is sleeved on and fixedly connected to the outer wall of the wires (11).

4. A monitoring mechanism for electric energy storage equipment according to claim 3, characterized in that: An inserting plate (21) is inserted into and slidably connected to the interior of the installation plate (14), and two locking holes (22) are formed on the outer wall of the inserting plate (21).

5. A monitoring mechanism for electric energy storage equipment according to claim 1, characterized in that: A plurality of compartments are arranged inside the adjustment portion (12), and two blocking blocks (33) arranged opposite to each other are fixedly connected inside each of the compartments, and an inclined surface (37) is provided at one end of the blocking block (33).

6. A monitoring mechanism for electric energy storage equipment according to claim 1, characterized in that: The blocking member comprises a connecting plate (35) fixedly connected to one side of an outer wall of the closing block (29); support columns (36) are fixedly connected to both upper and lower sides of the connecting plate (35); and guide plates (34) are fixedly connected to the ends of the support columns (36); the guide plates (34) are V-shaped and are elastic structures.

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