Drilling equipment for water conservancy and hydropower construction

Abstract

The invention relates to the technical field of drilling, and discloses drilling equipment for water conservancy and hydropower construction, which comprises a supporting plate, a fixing block is fixedly connected to the surface of the supporting plate, a holding rod is fixedly connected to the inner wall of the fixing block, supporting legs are fixedly connected to the bottom of the supporting plate, a round hole is formed in the surface of the supporting plate, and a supporting part is arranged at the top of the supporting plate; the supporting part comprises a mounting frame, and the bottom of the mounting frame is fixedly connected with the top of the supporting plate. A fixing block is arranged on the surface of the supporting plate to fix a holding rod, so that an operator carries the supporting plate through the holding rod, a mounting frame is arranged at the top of the supporting plate to limit a rotating rod, at the moment, a motor is started, the electric rotating rod rotates in the mounting frame, and the rotating rod drives a telescopic plate to rotate through a round rod when rotating; the telescopic plate can drive the power device to move through the mounting ring, and after the telescopic plate corresponds to the building, the power device can drive the drill bit to drill the building.

Description

Technical Field

[0001] The invention relates to the technical field of drilling, in particular to drilling equipment for water conservancy and hydropower construction. Background Art

[0002] Water conservancy and hydropower construction refers to the process of constructing hydraulic structures and hydropower facilities in the field of water conservancy and hydropower engineering, using various construction technologies and methods according to the requirements of design documents and construction specifications. Water conservancy and hydropower engineering construction involves many disciplines and technical fields, such as civil engineering, installation engineering, bridge engineering, tunnel engineering, geological engineering, etc. It is a complex system engineering; At present, during the construction of water conservancy and hydropower, it is necessary to drill holes in buildings so that equipment can be installed on the surface of the building through the holes for fixation. The drilling equipment needs to be held by the operator when in use, and the drilling equipment is prone to slipping when drilling holes in the building. The operator needs to push the drilling equipment hard to squeeze the building. At this time, all the operator's strength will be on the drilling equipment. When the drilling equipment slips, the operator will fall, resulting in poor stability of the drilling equipment. Summary of the invention

[0003] The purpose of the present invention is to provide a drilling device for water conservancy and hydropower construction to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a drilling device for water conservancy and hydropower construction, comprising a support plate, a fixed block is fixedly connected to the surface of the support plate, a grip is fixedly connected to the inner wall of the fixed block, a support leg is fixedly connected to the bottom of the support plate, a circular hole is opened on the surface of the support plate, and a support component is arranged on the top of the support plate; The supporting component comprises a mounting frame, the bottom of the mounting frame is fixedly connected to the top of the supporting plate, the inner wall of the mounting frame is rotatably connected with a rotating rod, the top of the supporting plate is fixedly connected with a motor, the output end of the motor is fixedly connected to the end of the rotating rod, the surface of the rotating rod is fixedly connected with a round rod, the surface of the round rod is fixedly connected with a telescopic plate, the end of the telescopic plate away from the round rod is fixedly connected with a mounting ring, the inner wall of the mounting ring is fixedly connected with a circular hole block, the surface of the telescopic plate is fixedly connected with a linkage plate, the surface of the linkage plate is fixedly connected with an electric push rod, a power device is arranged inside the mounting ring, a drill bit is fixedly connected to the output end of the power device, a clamping component is arranged inside the mounting ring, and a stabilizing component is arranged on the surface of the clamping component.

[0005] Furthermore, there are two grip rods, which are symmetrically arranged with the support plate as the center, and the ends of the grip rods pass through the fixed block and extend to the outer end of the fixed block. The mounting ring is located above the circular hole, and there are four circular hole blocks, which are arranged in a circle with the mounting ring as the center.

[0006] Furthermore, one end of the rotating rod close to the motor passes through the mounting frame and extends to the outer end of the mounting frame. Two linkage plates are provided. The two linkage plates are symmetrically arranged with the telescopic plate as the center. The electric push rod is located at one end where the two linkage plates are close to each other, and the bottom of the linkage plate contacts the top of the support plate.

[0007] Furthermore, the clamping component includes a sliding rod, the surface of the sliding rod is slidably connected to the inner wall of the circular hole block, the end of the sliding rod is fixedly connected to an arc plate, the end of the arc plate away from the sliding rod is fixedly connected to a rubber block, the surface of the mounting ring is fixedly connected to a bent plate, the end of the bent plate away from the mounting ring is fixedly connected to a threaded rod, the end of the arc plate close to the sliding rod is fixedly connected to an extension rod, the end of the extension rod away from the sliding rod is fixedly connected to an inclined plate, the surface of the threaded rod is threadedly connected to a screw hole rack, the surface of the screw hole rack is rotatably connected to a positioning ring, the end of the positioning ring is fixedly connected to a synchronization rod, and the end of the synchronization rod away from the positioning ring is fixedly connected to an extrusion ring.

[0008] Furthermore, there are four arc plates, which are arranged around the mounting ring as the center circle, the end of the slide rod extends to the outer end of the circular hole block, and the end of the rubber block away from the arc plate contacts the surface of the power device.

[0009] Furthermore, one end of the bent plate away from the mounting ring extends to the end of the mounting ring, and one end of the extension rod away from the sliding rod extends to the outer end of the mounting ring.

[0010] Furthermore, one end of the extrusion ring away from the synchronization rod contacts the surface of the inclined plate, the end of the threaded rod extends to the outer end of the screw hole frame, and one end of the threaded rod away from the mounting ring extends to the inside of the circular hole.

[0011] Furthermore, the stabilizing component comprises a connecting plate, a surface of the connecting plate is fixedly connected to a surface of the arc plate, an end of the connecting plate away from the arc plate is fixedly connected to a limiting plate, and a surface of the limiting plate is fixedly connected to a compression pad.

[0012] Furthermore, one end of the limit plate away from the connecting plate extends to the end of the power device, one end of the compression pad away from the limit plate contacts the end of the power device, and two limit plates are arranged on the surface of the connecting plate, and the two limit plates are symmetrically arranged with the connecting plate as the center.

[0013] The present invention has the following beneficial effects: The present invention provides a fixing block on the surface of the support plate to fix the grip rod, so that the operator can carry the support plate through the grip rod, and a mounting frame is provided on the top of the support plate to limit the rotating rod. At this time, the motor electric rotating rod is started to rotate inside the mounting frame, and the rotating rod drives the telescopic plate to rotate through the round rod when rotating, so that the telescopic plate can drive the power device to move through the mounting ring. When the telescopic plate corresponds to the building, the power device will drive the drill bit to drill the building, and the mounting ring is used to limit the power device to improve the stability of the power device driving the drill bit during operation. The electric push rod can push the telescopic plate to extend and contract, so as to adjust the height of the drill bit. When the mounting ring rotates to the top of the round hole, the mounting ring can store the power device on the top of the support plate for carrying it.

[0014] After the power device is placed inside the mounting ring, the screw hole frame is twisted to rotate. When the screw hole frame rotates, it drives the synchronous rod to move through the positioning ring. When the synchronous rod moves, it pushes the extrusion ring to contact the inclined plate, and pushes the inclined plates to move closer to each other through the extrusion ring. At this time, the slide bar pushes the arc plate to move toward the center of the mounting ring as the inclined plate moves. When the arc plate moves, it squeezes and fixes the power device through the rubber block. The arc plate is used to clamp and fix the power device, thereby improving the stability of the power device when driving the drill bit, and at the same time improving the convenience of the power device during installation and disassembly.

[0015] When the arc plate of the present invention moves toward the surface of the power device, the arc plate will push the extrusion pad to move through the connection between the connecting plate and the limit plate. The lower surface of the extrusion pad is set as an inclined surface. When the extrusion pad moves, it will push the power device to move slightly through the inclined surface, so as to adjust the installation position of the power device and limit it. At the same time, the limit plate will squeeze and limit the power device through the extrusion pad, so as to further improve the stability of the power device during drilling operations.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the support plate of the present invention; Figure 3 This is a schematic diagram of the overall structure of the support component of the present invention; Figure 4 Another structural schematic diagram of the support component of the present invention; Figure 5 It is a schematic diagram of the overall structure of the clamping component of the present invention; Figure 6 Another structural schematic diagram of the clamping component of the present invention; Figure 7 It is a schematic diagram of the overall structure of the stabilizing component of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. support plate; 2. fixing block; 3. grip rod; 4. power device; 5. drill bit; 6. outrigger; 7. support component; 8. clamping component; 9. stabilizing component; 101. round hole; 10. mounting frame; 11. motor; 12. rotating rod; 13. round rod; 14. telescopic plate; 15. mounting ring; 16. round hole block; 17. linkage plate; 18. electric push rod; 20. sliding rod; 21. rubber block; 22. arc plate; 23. extension rod; 24. bent plate; 25. inclined plate; 26. positioning ring; 27. synchronization rod; 28. screw hole rack; 29. ​​threaded rod; 30. extrusion ring; 40. connecting plate; 41. limit plate; 42. extrusion pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 7 As shown, the present invention is a drilling device for water conservancy and hydropower construction, comprising a support plate 1, a fixed block 2 is fixedly connected to the surface of the support plate 1, a gripping rod 3 is fixedly connected to the inner wall of the fixed block 2, a support leg 6 is fixedly connected to the bottom of the support plate 1, a circular hole 101 is opened on the surface of the support plate 1, and a support component 7 is arranged on the top of the support plate 1; The supporting component 7 includes a mounting frame 10, the bottom of the mounting frame 10 is fixedly connected to the top of the supporting plate 1, the inner wall of the mounting frame 10 is rotatably connected to a rotating rod 12, the top of the supporting plate 1 is fixedly connected to a motor 11, the output end of the motor 11 is fixedly connected to the end of the rotating rod 12, the surface of the rotating rod 12 is fixedly connected to a round rod 13, the surface of the round rod 13 is fixedly connected to a telescopic plate 14, the end of the telescopic plate 14 away from the round rod 13 is fixedly connected to a mounting ring 15, the inner wall of the mounting ring 15 is fixedly connected to a circular hole block 16, the surface of the telescopic plate 14 is fixedly connected to a linkage plate 17, the surface of the linkage plate 17 is fixedly connected to an electric push rod 18, a power device 4 is arranged inside the mounting ring 15, the output end of the power device 4 is fixedly connected to a drill bit 5, a clamping component 8 is arranged inside the mounting ring 15, and a stabilizing component 9 is arranged on the surface of the clamping component 8.

[0022] There are two gripping rods 3, which are symmetrically arranged with the support plate 1 as the center. The ends of the gripping rods 3 pass through the fixing block 2 and extend to the outer end of the fixing block 2. The present invention provides a fixing block 2 on the surface of the support plate 1 to fix the gripping rod 3, so that the operator can carry the support plate 1 through the gripping rod 3. A mounting frame 10 is provided on the top of the support plate 1 to limit the rotating rod 12. At this time, the motor 11 is started to electrically rotate the rotating rod 12 inside the mounting frame 10. When the rotating rod 12 rotates, it drives the telescopic plate 14 to rotate through the round rod 13, so that the telescopic plate 14 can drive the power device 4 to move through the mounting ring 15. When the telescopic plate 14 is with the mounting ring 15, the power device 4 can be driven to move. After the building is aligned, the power device 4 will drive the drill bit 5 to drill the building. The mounting ring 15 is used to limit the power device 4 to improve the stability of the power device 4 driving the drill bit 5 during operation. The electric push rod 18 can push the telescopic plate 14 to extend and contract so as to adjust the height of the drill bit 5. When the mounting ring 15 rotates and reaches the top of the circular hole 101, the mounting ring 15 can store the power device 4 on the top of the support plate 1 for transportation. The mounting ring 15 is located above the circular hole 101. There are four circular hole blocks 16, and the four circular hole blocks 16 are arranged around the mounting ring 15 as the center circle.

[0023] One end of the rotating rod 12 close to the motor 11 passes through the mounting frame 10 and extends to the outer end of the mounting frame 10. There are two connecting plates 17, and the two connecting plates 17 are symmetrically arranged with the telescopic plate 14 as the center. The electric push rod 18 is located at one end where the two connecting plates 17 are close to each other, and the bottom of the connecting plate 17 is in contact with the top of the support plate 1.

[0024] The clamping component 8 includes a slide rod 20, the surface of the slide rod 20 is slidably connected to the inner wall of the circular hole block 16, the end of the slide rod 20 is fixedly connected to a circular arc plate 22, the end of the circular arc plate 22 away from the slide rod 20 is fixedly connected to a rubber block 21, the surface of the mounting ring 15 is fixedly connected to a bent plate 24, the end of the bent plate 24 away from the mounting ring 15 is fixedly connected to a threaded rod 29, the end of the circular arc plate 22 close to the slide rod 20 is fixedly connected to an extension rod 23, the end of the extension rod 23 away from the slide rod 20 is fixedly connected to an inclined plate 25, the surface of the threaded rod 29 is threadedly connected to a screw hole frame 28, the surface of the screw hole frame 28 is rotatably connected to a positioning ring 26, the end of the positioning ring 26 is fixedly connected to a synchronization rod 27, and the end of the synchronization rod 27 away from the positioning ring 26 is fixedly connected to an extrusion ring 30.

[0025] There are four circular arc plates 22, which are arranged around the mounting ring 15 as the center circle. The end of the slide bar 20 extends to the outer end of the circular hole block 16. After the power device 4 is placed inside the mounting ring 15, the screw hole frame 28 is twisted to rotate. The screw hole frame 28 drives the synchronous rod 27 to move through the positioning ring 26 when rotating. The synchronous rod 27 pushes the extrusion ring 30 to contact the inclined plate 25 when moving, and pushes the inclined plate 25 to move closer to each other through the extrusion ring 30. At this time, the slide bar 20 will push the circular arc plate 22 to move toward the center of the mounting ring 15 as the inclined plate 25 moves. When the circular arc plate 22 moves, the power device 4 is squeezed and fixed by the rubber block 21. The power device 4 is clamped and fixed by the circular arc plate 22, thereby improving the stability of the power device 4 when driving the drill bit 5, and at the same time improving the convenience of the power device 4 during installation and disassembly. The end of the rubber block 21 away from the circular arc plate 22 contacts the surface of the power device 4.

[0026] One end of the bent plate 24 away from the mounting ring 15 extends to the end of the mounting ring 15 , and one end of the extension rod 23 away from the slide rod 20 extends to the outer end of the mounting ring 15 .

[0027] One end of the extrusion ring 30 away from the synchronization rod 27 contacts the surface of the inclined plate 25 , the end of the threaded rod 29 extends to the outer end of the screw hole bracket 28 , and one end of the threaded rod 29 away from the mounting ring 15 extends to the inside of the circular hole 101 .

[0028] The stabilizing component 9 includes a connecting plate 40 , a surface of which is fixedly connected to the surface of the arc plate 22 , an end of the connecting plate 40 away from the arc plate 22 is fixedly connected to a limiting plate 41 , and a surface of the limiting plate 41 is fixedly connected to a compression pad 42 .

[0029] The end of the limiting plate 41 away from the connecting plate 40 extends to the end of the power device 4. When the arc plate 22 of the present invention moves toward the surface of the power device 4, the arc plate 22 will push the extrusion pad 42 to move through the connection between the connecting plate 40 and the limiting plate 41. The lower surface of the extrusion pad 42 is set as an inclined surface. When the extrusion pad 42 moves, it will push the power device 4 to move slightly through the inclined surface so as to adjust the installation position of the power device 4. At the same time, the limiting plate 41 will squeeze and limit the power device 4 through the extrusion pad 42, further improving the stability of the power device 4 during drilling operations. The end of the extrusion pad 42 away from the limiting plate 41 contacts the end of the power device 4. Two limiting plates 41 are set on the surface of the connecting plate 40, and the two limiting plates 41 are symmetrically arranged with the connecting plate 40 as the center.

[0030] When in use, a fixing block 2 is provided on the surface of the support plate 1 to fix the gripping rod 3, so that the operator can carry the support plate 1 through the gripping rod 3. A mounting frame 10 is provided on the top of the support plate 1 to limit the rotating rod 12. At this time, the motor 11 is started to drive the rotating rod 12 to rotate inside the mounting frame 10. When the rotating rod 12 rotates, the telescopic plate 14 is driven to rotate through the round rod 13, so that the telescopic plate 14 can drive the power device 4 to move through the mounting ring 15. When the telescopic plate 14 corresponds to the building, the power device 4 will drive the drill 5 to The building is drilled, and the power device 4 is limited by the mounting ring 15 to improve the stability of the power device 4 driving the drill bit 5 during operation. The electric push rod 18 can push the telescopic plate 14 to extend and retract so as to adjust the height of the drill bit 5. When the mounting ring 15 rotates, after the top of the circular hole 101 is reached, the mounting ring 15 can store the power device 4 on the top of the support plate 1 for transportation. After the power device 4 is placed inside the mounting ring 15, the screw hole frame 28 is twisted to rotate, and the screw hole frame 28 will pass through the screw hole frame 28 when rotating. The positioning ring 26 drives the synchronous rod 27 to move. When the synchronous rod 27 moves, it pushes the extrusion ring 30 to contact the inclined plate 25, and pushes the inclined plate 25 to move closer to each other through the extrusion ring 30. At this time, the slide bar 20 will push the arc plate 22 to move toward the center of the mounting ring 15 as the inclined plate 25 moves. When the arc plate 22 moves, it squeezes and fixes the power device 4 through the rubber block 21. The arc plate 22 is used to clamp and fix the power device 4, thereby improving the stability of the power device 4 when driving the drill bit 5, and at the same time improving the power device 4. The power device 4 is convenient to install and disassemble. When the arc plate 22 moves toward the surface of the power device 4, the arc plate 22 will push the extrusion pad 42 to move through the connection between the connecting plate 40 and the limit plate 41. The lower surface of the extrusion pad 42 is set as an inclined surface. When the extrusion pad 42 moves, it will push the power device 4 to move slightly through the inclined surface, so as to adjust the installation position of the power device 4. At the same time, the limit plate 41 will squeeze and limit the power device 4 through the extrusion pad 42, so as to further improve the stability of the power device 4 during drilling operations.

[0031] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A drilling device for water conservancy and hydropower construction, comprising a support plate (1), characterized in that: A fixing block (2) is fixedly connected to the surface of the support plate (1), a gripping rod (3) is fixedly connected to the inner wall of the fixing block (2), a supporting leg (6) is fixedly connected to the bottom of the support plate (1), a circular hole (101) is provided on the surface of the support plate (1), and a supporting component (7) is provided on the top of the support plate (1); The support component (7) comprises a mounting frame (10), the bottom of the mounting frame (10) is fixedly connected to the top of the support plate (1), the inner wall of the mounting frame (10) is rotatably connected to a rotating rod (12), the top of the support plate (1) is fixedly connected to a motor (11), the output end of the motor (11) is fixedly connected to the end of the rotating rod (12), the surface of the rotating rod (12) is fixedly connected to a round rod (13), the surface of the round rod (13) is fixedly connected to a telescopic plate (14), and the telescopic plate (14) is away from the round rod (13). One end of the mounting ring (15) is fixedly connected to the mounting ring (15), the inner wall of the mounting ring (15) is fixedly connected to the circular hole block (16), the surface of the telescopic plate (14) is fixedly connected to the linkage plate (17), the surface of the linkage plate (17) is fixedly connected to the electric push rod (18), a power device (4) is arranged inside the mounting ring (15), the output end of the power device (4) is fixedly connected to the drill bit (5), a clamping component (8) is arranged inside the mounting ring (15), and a stabilizing component (9) is arranged on the surface of the clamping component (8).

2. A drilling device for water conservancy and hydropower construction according to claim 1, characterized in that: The number of the gripping rods (3) is two, and the two gripping rods (3) are symmetrically arranged with the support plate (1) as the center. The ends of the gripping rods (3) pass through the fixing block (2) and extend to the outer end of the fixing block (2). The mounting ring (15) is located above the circular hole (101). The number of the circular hole blocks (16) is four, and the four circular hole blocks (16) are arranged in a circle with the mounting ring (15) as the center.

3. A drilling device for water conservancy and hydropower construction according to claim 2, characterized in that: The end of the rotating rod (12) close to the motor (11) passes through the mounting frame (10) and extends to the outer end of the mounting frame (10). The number of the linkage plates (17) is two. The two linkage plates (17) are symmetrically arranged with the telescopic plate (14) as the center. The electric push rod (18) is located at one end of the two linkage plates (17) close to each other, and the bottom of the linkage plate (17) contacts the top of the support plate (1).

4. A drilling device for water conservancy and hydropower construction according to claim 3, characterized in that: The clamping component (8) comprises a sliding rod (20), the surface of the sliding rod (20) is slidably connected to the inner wall of the circular hole block (16), the end of the sliding rod (20) is fixedly connected to a circular arc plate (22), the end of the circular arc plate (22) away from the sliding rod (20) is fixedly connected to a rubber block (21), the surface of the mounting ring (15) is fixedly connected to a bent plate (24), the end of the bent plate (24) away from the mounting ring (15) is fixedly connected to a threaded rod (29), and the circular arc plate (22) is fixedly connected to the inner wall of the circular hole block (16). ) is fixedly connected to an extension rod (23) at one end close to the slide rod (20), and fixedly connected to an inclined plate (25) at one end of the extension rod (23) away from the slide rod (20). A screw hole frame (28) is threadedly connected to the surface of the threaded rod (29), and a positioning ring (26) is rotatably connected to the surface of the screw hole frame (28). A synchronization rod (27) is fixedly connected to the end of the positioning ring (26), and an extrusion ring (30) is fixedly connected to the end of the synchronization rod (27) away from the positioning ring (26).

5. The drilling equipment for water conservancy and hydropower construction according to claim 4, characterized in that: The number of the circular arc plates (22) is four, and the four circular arc plates (22) are arranged around the mounting ring (15) as the central circumference. The end of the sliding rod (20) extends to the outer end of the circular hole block (16), and the end of the rubber block (21) away from the circular arc plate (22) contacts the surface of the power device (4).

6. The drilling equipment for water conservancy and hydropower construction according to claim 5, characterized in that: One end of the bent plate (24) away from the mounting ring (15) extends to the end of the mounting ring (15), and one end of the extension rod (23) away from the sliding rod (20) extends to the outer end of the mounting ring (15).

7. The drilling equipment for water conservancy and hydropower construction according to claim 6, characterized in that: One end of the extrusion ring (30) away from the synchronization rod (27) contacts the surface of the inclined plate (25), the end of the threaded rod (29) extends to the outer end of the screw hole frame (28), and one end of the threaded rod (29) away from the mounting ring (15) extends to the inside of the circular hole (101).

8. The drilling equipment for water conservancy and hydropower construction according to claim 7, characterized in that: The stabilizing component (9) comprises a connecting plate (40), the surface of the connecting plate (40) being fixedly connected to the surface of the arc plate (22), one end of the connecting plate (40) away from the arc plate (22) being fixedly connected to a limiting plate (41), and the surface of the limiting plate (41) being fixedly connected to a pressing pad (42).

9. The drilling equipment for water conservancy and hydropower construction according to claim 8, characterized in that: One end of the limit plate (41) away from the connection plate (40) extends to the end of the power device (4), and one end of the compression pad (42) away from the limit plate (41) contacts the end of the power device (4). Two limit plates (41) are arranged on the surface of the connection plate (40), and the two limit plates (41) are symmetrically arranged with the connection plate (40) as the center.

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