A pole-type UPS power supply

Abstract

The invention belongs to the technical field of UPS power supply, in particular to a pole-holding UPS power supply; comprising: a power supply body and an automatic climbing unit; the invention first starts two No. 1 telescopic rods corresponding to a bottom circular frame to control their extension and retraction, so that two clamps at the bottom clamp and fix the electric pole, then the No. 2 telescopic rod is extended, driving the circular frame at the top to move upward, and when it is extended to the maximum length, the two clamps at the top clamp and fix the electric pole, then the two clamps at the bottom release the electric pole, the No. 2 telescopic rod is shortened, driving the circular frame at the bottom, a fixing plate, and the power supply body to move upward; after the No. 2 telescopic rod is shortened, the two clamps at the bottom continue to clamp the electric pole, then the two clamps at the top release the electric pole, the No. 2 telescopic rod continues to extend, and so on, to complete the automatic pole climbing; when a certain height is reached, the No. 2 telescopic rod is shortened to the shortest, the top and bottom clamps both clamp the electric pole, and the power supply body is fixed.

Description

Technical Field

[0001] The invention belongs to the technical field of UPS power supply, in particular to a pole-type UPS power supply. Background Art

[0002] UPS power supply, or uninterruptible power supply, is a constant voltage and constant frequency uninterruptible power supply system with energy storage device and inverter as the main component; its basic principle is that when the mains power is normal, the mains power is stabilized and supplied to the load for use, while charging its own energy storage device; when the mains power is interrupted, the DC power of the battery is immediately converted into AC power through the inverter to continue to supply the load, so that the load maintains normal operation and protects the load's software and hardware from damage;

[0003] UPS power supply is usually not installed on electric poles when in use. However, for some special situations, such as disaster relief, emergency repair without suitable installation point, and repair in some remote mountainous areas, UPS power supply can be installed on electric poles. During installation, UPS power supply needs to be installed at a certain height, which usually requires manual lifting and fixing, which is time-consuming, labor-intensive and dangerous.

[0004] In view of this, the present invention solves the above technical problems by proposing a pole-type UPS power supply. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the invention provides a pole-type UPS power supply which can automatically climb up to a utility pole with a power supply body and fix the power supply body on the utility pole.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a pole-type UPS power supply, comprising: a power supply body; the pole-type UPS power supply also comprises: an automatic climbing unit, which is arranged on the power supply body, and the automatic climbing unit can automatically climb to the electric pole with the power supply body, and fix the power supply body on the electric pole, and the automatic climbing saves time and labor and reduces risks.

[0007] Preferably, the automatic climbing unit comprises: a fixed plate, a fixed plate is fixedly installed on one side of the power supply body; a U-shaped frame, there are two U-shaped frames, both of which are strip-shaped U-shaped structures, and are respectively located on one side of the fixed plate near the top and the bottom; the U-shaped frame located at the bottom of the fixed plate is fixedly connected to the fixed plate, and the U-shaped frame located at the top of the fixed plate is slidably connected to the fixed plate and can be detached from the fixed plate; a hoop, each of the two sides of the inner wall of the U-shaped frame is fixedly connected to a No. 1 telescopic rod, and each end of the No. 1 telescopic rod is fixedly connected to a hoop; the top of the U-shaped frame located at the bottom of the fixed plate is fixedly connected to a No. 2 telescopic rod, and the top of the No. 2 telescopic rod is fixedly connected to the U-shaped frame located at the top of the fixed plate.

[0008] Preferably, a pressure sensor is provided at the contact position between each of the first telescopic rods and the clamp;

[0009] The staff moves the power source body to place the electric pole between the two pairs of clamps. The two clamps corresponding to each circular frame can clamp the electric pole. First, the two No. 1 telescopic rods corresponding to the bottom circular frame are started and controlled to extend and retract, so that the two clamps at the bottom clamp the electric pole and fix it. Then the No. 2 telescopic rod is extended, driving the circular frame at the top to move upward. When it is extended to the maximum length, the two clamps at the top clamp the electric pole and fix it. Then the two clamps at the bottom release the electric pole, and the No. 2 telescopic rod is shortened, driving the circular frame, the fixing plate, and the power source body at the bottom to move upward. After the No. 2 telescopic rod is shortened, the two clamps at the bottom continue to clamp the electric pole, and then the two at the top The clamp releases the pole, and the No. 2 telescopic pole continues to extend, and so on, to complete the automatic pole climbing; when a certain height is reached, the No. 2 telescopic pole is shortened to the shortest, and the top and bottom clamps clamp the pole to fix the power supply body; when the power supply body needs to be lowered, according to the same principle, the top clamp first clamps the pole, the bottom clamp is released, the No. 2 telescopic pole extends, and then the bottom clamp is clamped, the top clamp is released, the No. 2 telescopic pole shortens, and so on, the power supply body can be lowered; a pressure sensor is provided at the contact point between each No. 1 telescopic pole and the clamp, and the induction of the pressure sensor is used to determine whether the clamp has clamped the pole.

[0010] Preferably, a No. 1 groove is provided at the position corresponding to the two circular frames on the fixed plate, a No. 1 plate is slidably connected in each of the No. 1 grooves, a permanent magnet is fixedly connected to the position of the No. 1 plate close to the inside of the No. 1 groove, a No. 1 electromagnet is fixedly connected in each of the No. 1 grooves, a No. 1 spring is fixedly connected between the No. 1 electromagnet and the corresponding permanent magnet, and when the No. 1 electromagnet is energized, the No. 1 electromagnet repels the permanent magnet; the No. 1 plate can be inserted into the corresponding circular frame and fit therewith.

[0011] Preferably, each of the clamps is provided with a tooth block at one end located inside the circular frame, and the first plate is provided with meshing teeth on one side close to the tooth block;

[0012] When the power source body reaches a suitable height, the two pairs of hoops at the top and bottom clamp the electric pole, and the No. 2 telescopic rod is shortened to the maximum extent at this time, and each No. 1 plate can be inserted into the corresponding circular frame and match it; the No. 1 electromagnet is controlled to be energized, so the No. 1 electromagnet repels the permanent magnet, the No. 1 plate is inserted into the corresponding circular frame, the No. 1 spring is extended, and when the No. 1 plate is inserted into the circular frame, the No. 1 plate also shares the gravity of the power source body, so that the fixed plate and the bottom circular frame are firmly connected and not easy to break. For the top circular frame, it is not fixedly connected to the fixed plate. This setting is equivalent to a latch, which plays a connecting role, so that the top circular frame can also bear the gravity of the power source body, ensuring that the power source body is not easy to fall; when the No. 1 plate is inserted into the circular frame, since each hoop is located at one end of the circular frame The end of the tooth block is provided with a tooth block, and the side of the No. 1 plate close to the tooth block is provided with meshing teeth, the tooth block is meshed with the meshing teeth on the No. 1 plate at this time, The effect of locking the hoop is played, making it difficult to loosen when the hoop is locked.

[0013] Preferably, each of the clamps is fixedly connected to a fastening block at one end away from the circular frame, and each of the fastening blocks is hollow inside; the two fastening blocks corresponding to the same circular frame are provided with a threaded rod and a screw hole matching the corresponding threaded rod on the side close to each other; each of the fastening blocks is rotatably connected to a wire drum, a traction wire is wound on the wire drum, and the end of the traction wire passes through the side wall of the fastening block and is fixedly connected to the threaded rod; a torsion spring is provided between the wire drum and the inside of the fastening block so that the wire drum has a tendency to tighten the traction wire; each of the fastening blocks is provided with a No. 2 groove at a position close to the traction wire, and each of the No. 2 grooves is slidably connected with an extrusion block, and each of the extrusion blocks can extrude the corresponding traction wire.

[0014] Preferably, each of the clamps is provided with a No. 3 groove inside, each of the No. 3 grooves is slidably connected with a T-shaped rod inside, each of the tooth blocks is fixedly connected to the end of the corresponding T-shaped rod, and a No. 2 spring is fixedly connected between each of the T-shaped rods and the corresponding end of the No. 3 groove; each of the clamps and the fastening block is provided with a No. 1 channel inside, the No. 1 channel connects the corresponding No. 3 groove and the No. 2 groove, and the No. 2 groove, the No. 3 groove, and the No. 1 channel are all filled with hydraulic oil;

[0015] When the staff places the two pairs of clamps on the outer ring of the electric pole, they pull out the threaded rod and insert it into the screw hole of the opposite fastening block, and the traction line is also pulled out immediately. The traction line is retracted and released as the two clamps on the same circular frame approach and move away, and is always kept taut; when the power supply body moves to a suitable height, the No. 1 plate enters the circular frame, contacts and squeezes the tooth block, causing the T-shaped rod to move into the No. 3 groove, and the No. 2 spring contracts. At this time, the hydraulic oil in the No. 3 groove is squeezed into the No. 2 groove through the No. 1 channel, pushing the squeezing block to squeeze the traction line, so that the traction line maintains a fixed length. Therefore, one end of the two clamps on the same circular frame is squeezed and fixed by the No. 1 telescopic rod, and the other end is pulled and fixed by the traction line, ensuring that both ends of the clamps are fixed, the force is evenly distributed, and it is not easy to deform and loosen.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. A pole-type UPS power supply described in the present invention first starts two No. 1 telescopic rods corresponding to the bottom circular frame to control their extension and retraction, so that the two clamps at the bottom clamp the electric pole and fix it, then the No. 2 telescopic rod is extended to drive the top circular frame to move upward, and when it is extended to the maximum length, the two clamps at the top clamp the electric pole and fix it, then the two clamps at the bottom release the electric pole, and the No. 2 telescopic rod is shortened to drive the bottom circular frame, the fixing plate, and the power supply body to move upward; after the No. 2 telescopic rod is shortened, the two clamps at the bottom continue to clamp the electric pole, then the two clamps at the top release the electric pole, and the No. 2 telescopic rod continues to extend, and so on, to complete automatic pole climbing; when a certain height is reached, the No. 2 telescopic rod is shortened to the shortest, and the top and bottom clamps both clamp the electric pole to fix the power supply body.

[0018] 2. A pole-type UPS power supply described in the present invention, when the power supply body reaches a suitable height, the two pairs of clamps at the top and the bottom clamp the electric pole, at this time, the No. 1 electromagnet is controlled to be energized, and the No. 1 plate is inserted into the corresponding circular frame. At this time, the No. 1 plate also shares the gravity of the power supply body, so that the fixed plate and the bottom circular frame are firmly connected and not easy to break. As for the top circular frame, it is not fixedly connected to the fixed plate. This setting is equivalent to a latch, which plays a connecting role, so that the top circular frame can also bear the gravity of the power supply body, ensuring that the power supply body is not easy to fall; when the No. 1 plate is inserted into the circular frame, since each clamp is located at one end of the circular frame The end is provided with a tooth block, and the side of the No. 1 plate close to the tooth block is provided with meshing teeth, so at this time, the tooth block is meshed with the meshing teeth on the No. 1 plate, which plays a role in locking the clamp, so that when the clamp is locked, it is not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 is a three-dimensional diagram of the second telescopic rod of the present invention after extension;

[0022] Figure 3 is a partial stereogram of the automatic climbing unit of the present invention;

[0023] Figure 4 is a top cross-sectional view of the first groove of the present invention;

[0024] Figure 5 yes Figure 4 A local enlarged view of point A;

[0025] Figure 6 yes Figure 4 A partial enlarged view of point B;

[0026] In the figure: 1. power supply body; 2. automatic climbing unit; 21. fixing plate; 22. circular frame; 23. clamp; 24. telescopic rod No. 1; 25. telescopic rod No. 2; 3. slot No. 1; 31. plate No. 1; 32. permanent magnet; 33. electromagnet No. 1; 34. spring No. 1; 4. tooth block; 5. fastening block; 51. threaded rod; 52. screw hole; 53. wire drum; 54. traction line; 55. slot No. 2; 56. extrusion block; 6. slot No. 3; 61. T-shaped rod; 62. spring No. 2; 63. channel No. 1. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figure 1 As shown, a pole-type UPS power supply according to the present invention comprises: a power supply body 1; the pole-type UPS power supply further comprises: an automatic climbing unit 2, the power supply body 1 is provided with the automatic climbing unit 2, the automatic climbing unit 2 can automatically climb to the electric pole with the power supply body 1, and fix the power supply body 1 on the electric pole;

[0029] When working, the UPS power supply is usually not installed on a utility pole when in use. However, for some special situations, such as disaster relief, emergency repair without a suitable installation point, and repair in some remote mountainous areas, the UPS power supply can be installed on a utility pole. During installation, the UPS power supply needs to be installed at a certain height, which usually requires manual lifting and fixing, which is time-consuming, labor-intensive and dangerous. Therefore, an automatic climbing unit 2 is provided on the power supply body 1. The automatic climbing unit 2 can automatically climb to the utility pole with the power supply body 1 and fix the power supply body 1 on the utility pole. Automatic climbing saves time and effort and reduces risks.

[0030] As a specific embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 As shown, the automatic climbing unit 2 includes: a fixed plate 21, a fixed plate 21 is fixedly installed on one side of the power supply body 1; a circular frame 22, there are two circular frames 22, both of which are strip-shaped circular structures, respectively located on one side of the fixed plate 21 near the top and the bottom; the circular frame 22 located at the bottom of the fixed plate 21 is fixedly connected to the fixed plate 21, and the circular frame 22 located at the top of the fixed plate 21 is slidably connected to the fixed plate 21 and can be separated from the fixed plate 21; a hoop 23, both sides of the inner wall of each circular frame 22 are fixedly connected to a No. 1 telescopic rod 24, and the end of each No. 1 telescopic rod 24 is fixedly connected to a hoop 23; the top of the circular frame 22 located at the bottom of the fixed plate 21 is fixedly connected to a No. 2 telescopic rod 25, and the top of the No. 2 telescopic rod 25 is fixedly connected to the circular frame 22 located at the top of the fixed plate 21;

[0031] A pressure sensor is provided at the contact position between each No. 1 telescopic rod 24 and the clamp 23;

[0032] During operation, the staff moves the power source body 1 to place the electric pole between the two pairs of clamps 23. The two clamps 23 corresponding to each circular frame 22 can clamp the electric pole. First, the two No. 1 telescopic rods 24 corresponding to the bottom circular frame 22 are started to control their extension and retraction, so that the two clamps 23 at the bottom clamp and fix the electric pole. Then, the No. 2 telescopic rod 25 is extended to drive the circular frame 22 at the top to move upward. When it is extended to the maximum length, the two clamps 23 at the top clamp and fix the electric pole. Then, the two clamps 23 at the bottom release the electric pole, and the No. 2 telescopic rod 25 is shortened to drive the circular frame 22, the fixing plate 21, and the power source body 1 at the bottom to move upward. After the No. 2 telescopic rod 25 is shortened, the two clamps 23 at the bottom continue to clamp the electric pole. After that, the two clamps 23 at the top release the electric pole, and the No. 2 telescopic rod 25 continues to extend, and so on, to complete the automatic pole climbing; when a certain height is reached, the No. 2 telescopic rod 25 is shortened to the shortest, and the top and bottom clamps 23 clamp the electric pole to fix the power supply body 1; when the power supply body 1 needs to be put down, according to the same principle, the top clamp 23 first clamps the electric pole, the bottom one is released, the No. 2 telescopic rod 25 extends, and then the bottom clamp 23 is clamped, the top one is released, and the No. 2 telescopic rod 25 shortens, and so on, the power supply body 1 can be put down; each contact part between the No. 1 telescopic rod 24 and the clamp 23 is provided with a pressure sensor, and the induction of the pressure sensor is used to judge whether the clamp 23 clamps the electric pole.

[0033] As a specific embodiment of the present invention, Figure 2 , Figure 4 , Figure 5As shown, a No. 1 slot 3 is provided on the fixed plate 21 and at the position corresponding to the two circular frames 22, a No. 1 plate 31 is slidably connected in each No. 1 slot 3, a permanent magnet 32 ​​is fixedly connected to the No. 1 plate 31 near the inside of the No. 1 slot 3, a No. 1 electromagnet 33 is fixedly connected to the inside of each No. 1 slot 3, a No. 1 spring 34 is fixedly connected between the No. 1 electromagnet 33 and the corresponding permanent magnet 32, and when the No. 1 electromagnet 33 is energized, the No. 1 electromagnet 33 repels the permanent magnet 32; the No. 1 plate 31 can be inserted into the corresponding circular frame 22 and fit therewith;

[0034] like Figure 5 As shown, each clamp 23 is provided with a tooth block 4 at one end located inside the circular frame 22, and a meshing tooth is provided on one side of the first plate 31 close to the tooth block 4;

[0035] During operation, when the power source body 1 reaches a suitable height, the two pairs of hoops 23 at the top and bottom clamp the electric pole, and the No. 2 telescopic rod 25 is shortened to the maximum extent. At this time, each No. 1 plate 31 can be inserted into the corresponding circular frame 22 and match it; the No. 1 electromagnet is energized, so the No. 1 electromagnet 33 repels the permanent magnet 32, and the No. 1 plate 31 is inserted into the corresponding circular frame 22, and the No. 1 spring 34 is extended. When the No. 1 plate 31 is inserted into the circular frame 22, the No. 1 plate 31 also shares the gravity of the power source body 1, so that the fixed plate 21 and the bottom circular frame 22 are firmly connected and not easily The top circular frame 22 is not fixedly connected to the fixed plate 21. This setting is equivalent to a latch, which plays a connecting role, so that the top circular frame 22 can also bear the gravity of the power supply body 1, ensuring that the power supply body 1 is not easy to fall; when the No. 1 plate 31 is inserted into the circular frame 22, since each clamp 23 is located at one end of the circular frame 22 and is provided with a tooth block 4, the No. 1 plate 31 is provided with a meshing tooth on the side of the tooth block 4. Therefore, the tooth block 4 is meshed with the meshing tooth on the No. 1 plate 31 at this time, which plays a role of locking the clamp 23, so that when the clamp 23 is locked, it is not easy to loosen.

[0036] As a specific embodiment of the present invention, Figure 3 , Figure 4 , Figure 6As shown, one end of each clamp 23 away from the circular frame 22 is fixedly connected to a fastening block 5, and each fastening block 5 is hollow inside; the two fastening blocks 5 corresponding to the same circular frame 22 are provided with a threaded rod 51 on the side close to each other and a screw hole 52 matching the corresponding threaded rod 51; a wire drum 53 is rotatably connected inside each fastening block 5, a traction wire 54 is wound around the wire drum 53, and the end of the traction wire 54 passes through the side wall of the fastening block 5 and is fixedly connected to the threaded rod 51; a torsion spring is provided between the wire drum 53 and the inside of the fastening block 5 so that the wire drum 53 has a tendency to tighten the traction wire 54; a second groove 55 is provided inside each fastening block 5 at a position close to the traction wire 54, and an extrusion block 56 is slidably connected in each second groove 55, and each extrusion block 56 can extrude the corresponding traction wire 54;

[0037] like Figure 5 , Figure 6 As shown, each hoop 23 is provided with a No. 3 groove 6, each No. 3 groove 6 is slidably connected with a T-shaped rod 61, each tooth block 4 is fixedly connected to the end of the corresponding T-shaped rod 61, and a No. 2 spring 62 is fixedly connected between each T-shaped rod 61 and the end of the corresponding No. 3 groove 6; each hoop 23 and fastening block 5 is provided with a No. 1 channel 63, the No. 1 channel 63 connects the corresponding No. 3 groove 6 and the No. 2 groove 55, and the No. 2 groove 55, the No. 3 groove 6, and the No. 1 channel 63 are all filled with hydraulic oil;

[0038] During operation, when placing the two pairs of clamps 23 on the outer ring of the electric pole, the staff pulls out the threaded rod 51 and inserts the threaded rod 51 into the screw hole 52 of the opposite fastening block 5, and the traction line 54 is also pulled out immediately. The traction line 54 is retracted and released as the two clamps 23 on the same circular frame 22 approach and move away, and always remains in a taut state; when the power supply body 1 moves to a suitable height, the No. 1 plate 31 enters the circular frame 22, contacts and squeezes the tooth block 4, so that the T-shaped rod 61 moves into the No. 3 groove 6, and the No. 2 spring 62 contracts. At this time, the hydraulic oil in the No. 3 groove 6 is squeezed into the No. 2 groove 55 through the No. 1 channel 63, pushing the squeezing block 56 to squeeze the traction line 54, so that the traction line 54 maintains a fixed length. Therefore, one end of the two clamps 23 on the same circular frame 22 is squeezed and fixed by the No. 1 telescopic rod 24, and the other end is pulled and fixed by the traction line 54, ensuring that both ends of the clamps 23 are fixed, the force is evenly applied, and it is not easy to deform and loosen.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the specific implementation modes of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A pole-type UPS power supply, comprising: Power supply body (1); Characterized in that: the pole-type UPS power supply also includes: An automatic climbing unit (2), wherein the power source body (1) is provided with the automatic climbing unit (2), and the automatic climbing unit (2) can automatically climb onto the electric pole with the power source body (1) and fix the power source body (1) on the electric pole; The automatic climbing unit (2) comprises: A fixing plate (21), the fixing plate (21) being fixedly mounted on one side of the power source body (1); There are two circular frames (22), both of which are strip-shaped circular structures and are respectively located on one side of the fixed plate (21) near the top and the bottom; the circular frame (22) located at the bottom of the fixed plate (21) is fixedly connected to the fixed plate (21), and the circular frame (22) located at the top of the fixed plate (21) is slidably connected to the fixed plate (21) and can be separated from the fixed plate (21); A hoop (23), both sides of the inner wall of each circular frame (22) are fixedly connected to a first telescopic rod (24), and the end of each first telescopic rod (24) is fixedly connected to a hoop (23); a second telescopic rod (25) is fixedly connected to the top of the circular frame (22) located at the bottom of the fixed plate (21), and the top of the second telescopic rod (25) is fixedly connected to the circular frame (22) located at the top of the fixed plate (21); A pressure sensor is provided at the contact position between each of the first telescopic rods (24) and the clamp (23); A No. 1 slot (3) is provided on the fixed plate (21) at a position corresponding to the two circular frames (22); a No. 1 plate (31) is slidably connected in each of the No. 1 slots (3); a permanent magnet (32) is fixedly connected to the No. 1 plate (31) at a position close to the inside of the No. 1 slot (3); a No. 1 electromagnet (33) is fixedly connected to the inside of each of the No. 1 slots (3); a No. 1 spring (34) is fixedly connected between the No. 1 electromagnet (33) and the corresponding permanent magnet (32); when the No. 1 electromagnet (33) is energized, the No. 1 electromagnet (33) repels the permanent magnet (32); the No. 1 plate (31) can be inserted into the corresponding circular frame (22) and fit therewith; A tooth block (4) is provided at one end of each of the hoop (23) located inside the circular frame (22), and meshing teeth are provided on one side of the No. 1 plate (31) close to the tooth block (4); One end of each of the clamps (23) away from the circular frame (22) is fixedly connected to a fastening block (5), and each of the fastening blocks (5) is hollow inside; two fastening blocks (5) corresponding to the same circular frame (22) are provided with a threaded rod (51) and a screw hole (52) matching the corresponding threaded rod (51) on one side close to each other; each of the fastening blocks (5) is rotatably connected to a wire drum (53) inside, and a traction wire (54) is wound around the wire drum (53), and the traction wire (54) is The end of the fastening block (54) penetrates the side wall of the fastening block (5) and is fixedly connected to the threaded rod (51); a torsion spring is arranged between the wire drum (53) and the inside of the fastening block (5) so that the wire drum (53) has a tendency to tighten the traction wire (54); each of the fastening blocks (5) is provided with a second groove (55) at a position close to the traction wire (54), and each of the second grooves (55) is slidably connected with an extrusion block (56), and each of the extrusion blocks (56) can extrude the corresponding traction wire (54); Each of the clamps (23) is provided with a No. 3 groove (6), each of the No. 3 grooves (6) is slidably connected with a T-shaped rod (61), each of the tooth blocks (4) is fixedly connected to the end of the corresponding T-shaped rod (61), and a No. 2 spring (62) is fixedly connected between each of the T-shaped rods (61) and the end of the corresponding No. 3 groove (6); each of the clamps (23) and the fastening block (5) is provided with a No. 1 channel (63), the No. 1 channel (63) connects the corresponding No. 3 groove (6) and the No. 2 groove (55), and the No. 2 groove (55), the No. 3 groove (6), and the No. 1 channel (63) are all filled with hydraulic oil.

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