Hoop height adjusting device for electric power construction

Abstract

The invention discloses an electric power construction hoop height adjusting device, and belongs to the field of electric power construction, the electric power construction hoop height adjusting device comprises an arc-shaped plate, an electric telescopic rod is assembled on the top of the arc-shaped plate, and a base is fixedly connected to the top of the electric telescopic rod; a knocking block is assembled on the top of the base, a sliding groove used for sliding of the knocking block is formed in the top of the base, and a movable plate is slidably connected to the top of the base. Through interaction of the threaded rod and the hydraulic assembly, the fixing lugs of the hoop get close to each other, and finally the hoop is fixed. And a knocking block acts to drive a moving plate to move, so that a third hydraulic rod and a fourth hydraulic rod are activated, and finally fixing of a fixing lug is achieved. Along with adjustment of the first hydraulic rod and the second hydraulic rod, the movable plate is fixed to a certain position, and lifting of the base is controlled through the electric telescopic rod. By means of the part, close fit of the hoop fixing lugs and overall fixing of the hoop are achieved, and meanwhile frequent knocking is not needed.

Description

Technical Field

[0001] The present application relates to the field of electric power construction, and more specifically, to a device for adjusting the height of a hoop for electric power construction. Background Art

[0002] Currently, during electric power construction operations, a cross arm is often supported by clamping a hoop on a utility pole. Electric power equipment such as transformers and distribution cabinets is often placed on the cross arm. In order to ensure that the electric power equipment is in the best state during operation, there are usually certain requirements for the levelness of the cross arm to prevent uneven stress on the electric power equipment due to the skew of the cross arm. The angle of the cross arm is determined by the hoops supporting the bottom ends of its two ends. The relative height detection of the two hoops is usually carried out after the cross arm is erected, and the height of the hoops is adjusted according to the skew angle of the cross arm. When adjusting the height of the hoops, the traditional method is to loosen the fastening bolts of the hoops a little, and then use a wrench or a hammer to strike both sides of the hoop to adjust its height. During the striking process, since there is a cross arm pressing on the hoop, it is difficult to strike. Usually, the diameter of the utility pole gradually decreases from bottom to top, so it is difficult to strike downwards, and when striking upwards, it is necessary to frequently adjust the fastening degree of the fastening bolts to prevent slipping, which makes the operation difficult and consumes a large amount of physical strength of the operators.

[0003] The patent document with the publication number CN107872023B discloses a device for adjusting the height of a hoop for electric power construction, which is clamped on a utility pole and fixed on the hoop, and adjusts the height of the hoop through the movement of a hydraulic column. Although the above application document does not require frequent striking of the hoop, the operation is simpler and the physical strength consumption of the operators is smaller, but when in use, in order to make the hoops approach each other, it is necessary to strike four times to make the hoops approach each other. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a device for adjusting the height of a hoop for electric power construction, which solves the problems raised in the above background art.

[0005] To achieve the above object, the present application provides a device for adjusting the height of a hoop for electric power construction, including an arc-shaped plate, an electric telescopic rod is assembled on the top of the arc-shaped plate, and a base is fixedly connected to the top of the electric telescopic rod; A knocking block is assembled on the top of the base. There is a chute on the top of the base for the knocking block to slide. A moving plate is slidably connected to the top of the base. A fixing plate is fixedly connected to the top of the base. A first hydraulic chamber is assembled on the top of the base. One end of the piston in the first hydraulic chamber is slidably connected to a first hydraulic rod. The bottom of the base far from the first hydraulic chamber is fixedly connected to a second hydraulic chamber. One end of the piston in the second hydraulic chamber is slidably connected to a second hydraulic rod. A receiving groove for the second hydraulic rod to slide is opened at the bottom of the base. The first hydraulic chamber and the second hydraulic chamber are connected by a first connecting hose. A hydraulic component is fixedly connected to the back of the moving plate. A supporting device for supporting the arc-shaped plate is assembled on the top of the base. A rotating device for further improving the stability of the arc-shaped plate is assembled on the top of the base.

[0006] Preferably, the hydraulic component includes a third hydraulic chamber. The third hydraulic chamber is fixedly connected to the top of the base. One end of the piston in the third hydraulic chamber is slidably connected to a third hydraulic rod. The third hydraulic rod is fixedly connected to the back of the moving plate. The top of the base far from the third hydraulic chamber is fixedly connected to a fourth hydraulic chamber. One end of the piston in the fourth hydraulic chamber is slidably connected to a fourth hydraulic rod. The fourth hydraulic rod is fixedly connected to the front of the moving plate. The third hydraulic chamber and the fourth hydraulic chamber are connected by a second connecting hose.

[0007] Preferably, a threaded rod is threadedly connected to the moving plate and the fixing plate. The two arc-shaped plates are fixedly connected by bolts. A telescopic rod is fixedly connected to the top of the arc-shaped plate.

[0008] Preferably, the knocking block is fixedly connected to the front of the moving plate. A chute is opened on the inner wall of the arc-shaped plate.

[0009] Preferably, the supporting device includes a vertical plate. The vertical plate is fixedly connected to the top of the base. A first rotating rod is rotatably connected to the front of the vertical plate through a bearing. A circular gear is fixedly connected to the outer wall of the first rotating rod. A rack is fixedly connected to the front of the moving plate. The circular gear and the rack are meshed with each other.

[0010] Preferably, the first rotating rod extends forward through the vertical plate. A connecting plate is fixedly connected to the bottom of the arc-shaped plate. A lead screw is rotatably connected to the front of the connecting plate through a bearing. The outer wall of the lead screw and the outer wall of the first rotating rod are connected by a sprocket and chain drive. A fifth hydraulic chamber is fixedly connected to the bottom of the arc-shaped plate. A sleeve is threadedly connected to the outer wall of the lead screw. One end of the piston in the fifth hydraulic chamber is slidably connected to a fifth hydraulic rod. The fifth hydraulic rod is fixedly connected to the back of the sleeve. One end of the piston in the fifth hydraulic chamber is slidably connected to a sixth hydraulic rod. A rubber block is fixedly connected to the bottom of the sixth hydraulic rod.

[0011] Preferably, the rotating device includes a gear ring which is slidably connected to the inner wall of the chute. A first bevel gear is fixedly connected to the outer wall of the lead screw. The bottom of the arc-shaped plate is rotatably connected to a second rotating rod through a bearing, and a second bevel gear is fixedly connected to the bottom of the second rotating rod.

[0012] Preferably, a driving gear is fixedly connected to the top of the second rotating rod. The driving gear meshes with the gear ring, and the first bevel gear meshes with the second bevel gear.

[0013] The advantages of this application are as follows: First, through the interaction of the threaded rod and the hydraulic components, the fixing ears of the hoop are brought closer together and finally the hoop is fixed. The movement of the knocking block drives the moving plate to move, thereby activating the third hydraulic rod and the fourth hydraulic rod, and finally realizing the fixing of the fixing ears. With the adjustment of the first hydraulic rod and the second hydraulic rod, the moving plate is fixed at a certain position, and the lifting of the base is controlled by the electric telescopic rod. This part realizes the tight fit of the fixing ears of the hoop and the overall fixing of the hoop, and does not require frequent knocking.

[0014] Second, this application drives the rotation of the lead screw through mechanisms such as the moving plate driving the rack and the spur gear, and then drives the sleeve. Through the linkage of the fifth hydraulic rod and the sixth hydraulic rod, the support for the arc-shaped plate and the hoop is completed. Through the adjustment of the hydraulic pressure, the rubber block is pushed, supporting the stability of the entire system. The effect of this part is to increase the supporting force and stability of the arc-shaped plate and the hoop, and avoid instability or deformation during use.

[0015] Third, this application drives the gear ring to rotate through the lead screw driving the first bevel gear, the second bevel gear, and the second rotating rod, and improves the stability of the arc-shaped plate. Through precise gear transmission and hydraulic control, the system can more accurately adjust the matching degree between the hoop and the arc-shaped plate, making the structure of the arc-shaped plate more firm. The stability of the arc-shaped plate and the overall accuracy of the system are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, objectives, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation of this application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the bottom structure of the present invention; Figure 3 is a schematic diagram of the back structure of the present invention; Figure 4 is a schematic diagram of a partial structure of the present invention; Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure at location A in the present invention; Figure 6 For the present invention Figure 3 Schematic diagram of the enlarged structure at location B in the present invention; Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure at location C in the present invention.

[0017] In the above figures, 1. Base; 21. Knocking block; 22. Moving plate; 23. Fixed plate; 24. First hydraulic chamber; 25. First hydraulic rod; 26. First connecting hose; 27. Second hydraulic chamber; 28. Second hydraulic rod; 29. Third hydraulic chamber; 210. Third hydraulic rod; 211. Second connecting hose; 212. Fourth hydraulic chamber; 213. Fourth hydraulic rod; 3. Support device; 31. Vertical plate; 32. First rotating rod; 33. Circular gear; 34. Rack; 35. Sprocket and chain; 36. Connecting plate; 37. Fifth hydraulic rod; 38. Fifth hydraulic chamber; 39. Lead screw; 310. Sixth hydraulic rod; 4. Rotating device; 41. Ring gear; 42. First bevel gear; 43. Second rotating rod; 44. Second bevel gear; 45. Driving gear; 5. Electric telescopic rod; 6. Telescopic rod; 7. Arc plate. Detailed implementation manners

[0018] In order to enable those skilled in the art of this technology to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0019] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0020] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0021] Moreover, in addition to being used to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0022] In addition, the terms "install", "set", "provided with", "connect", "connected", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with embodiments to detail this application.

[0024] Embodiment 1, see Figures 1-6 , this embodiment provides a device for adjusting the height of a power construction hoop, including an arc-shaped plate 7, an electric telescopic rod 5 is assembled on the top of the arc-shaped plate 7, and the top of the electric telescopic rod 5 is fixedly connected with a base 1; A striking block 21 is assembled on the top of the base 1. There is a sliding groove on the top of the base 1 for the sliding of the striking block 21. A moving plate 22 is slidably connected to the top of the base 1. A fixing plate 23 is fixedly connected to the top of the base 1. A first hydraulic chamber 24 is assembled on the top of the base 1. One end of the piston inside the first hydraulic chamber 24 is slidably connected to a first hydraulic rod 25. At the bottom of the base 1 away from the first hydraulic chamber 24, a second hydraulic chamber 27 is fixedly connected. One end of the piston inside the second hydraulic chamber 27 is slidably connected to a second hydraulic rod 28. A receiving groove for the sliding of the second hydraulic rod 28 is opened at the bottom of the base 1. The first hydraulic chamber 24 and the second hydraulic chamber 27 are connected by a first connecting hose 26. A hydraulic component is fixedly connected to the back of the moving plate 22. A supporting device 3 for supporting the arc-shaped plate 7 is assembled on the top of the base 1. A rotating device 4 for further improving the stability of the arc-shaped plate 7 is assembled on the top of the base 1. Through a series of components, its stability and height adjustability are ensured. An electric telescopic rod 5 is assembled on the top of the arc-shaped plate 7. The electric telescopic rod 5 can provide the necessary power to change the height of the device. The top of the electric telescopic rod 5 is fixedly connected to the base 1, serving as the support foundation of the device. A striking block 21 is assembled on the top of the base 1, which can withstand knocking. The striking block 21 is slidably connected to the top of the base 1 through the sliding groove, allowing its position to be adjusted when needed. A moving plate 22 is slidably connected to the top of the base 1. The movement of the plate can be adjusted by the hydraulic component connected to the base 1. A fixing plate 23 is fixedly connected to the top of the base 1 to ensure the stability and positioning of the device. A first hydraulic chamber 24 is assembled on the top of the base 1. The first hydraulic rod 25 contained therein can provide force through the sliding of the piston. The bottom of the base 1 is connected to the second hydraulic rod 28 through the second hydraulic chamber 27. The first hydraulic chamber 24 and the second hydraulic chamber 27 are connected by a first connecting hose 26 to ensure the smooth transmission of the hydraulic fluid and the precise adjustment process. The striking block 21 is fixed to the front of the moving plate 22 for precise knocking when adjustment is needed. A sliding groove is opened on the inner wall of the arc-shaped plate 7 for the sliding and flexible adjustment of the striking block 21. This design enhances the adjustment ability of the device, especially in a complex electric power construction environment. The hydraulic component includes a third hydraulic chamber 29. The third hydraulic chamber 29 is fixedly connected to the top of the base 1. One end of the piston inside the third hydraulic chamber 29 is slidably connected to a third hydraulic rod 210. The third hydraulic rod 210 is fixedly connected to the back of the moving plate 22. At the top of the base 1 away from the third hydraulic chamber 29, a fourth hydraulic chamber 212 is fixedly connected to provide additional hydraulic power for the lateral movement of the moving plate 22 to ensure its stability and flexibility during operation. One end of the piston inside the fourth hydraulic chamber 212 is slidably connected to a fourth hydraulic rod 213. The fourth hydraulic rod 213 is fixedly connected to the front of the moving plate 22. The third hydraulic chamber 29 and the fourth hydraulic chamber 212 are connected by a second connecting hose 211.The movable plate 22 and the fixed plate 23 are threadedly connected with a threaded rod, and the two arc plates 7 are fixedly connected by bolts. The top of the arc plate 7 is fixedly connected with a telescopic rod 6. In order to facilitate the adjustment of the arc plate 7, the clamp fixing ears are connected by threaded rods, so that the arc plate 7 can be fixedly connected by bolts according to needs to achieve more precise adjustment. The top of the arc plate 7 is also fixedly connected with a telescopic rod 6 to provide more adjustment space. The knocking block 21 is fixedly connected to the front of the movable plate 22, and a sliding groove is provided on the inner wall of the arc plate 7.

[0025] When the above-mentioned device is used, the two fixed ears of the clamp are placed on the two bases 1, the fixed ears are placed between the fixed plate 23 and the movable plate 22, the threaded rod is twisted to fix the fixed ears, and the knocking block 21 is hammered, and the knocking block 21 drives the movable plate 22 to move to the right, and the movable plate 22 drives the third hydraulic rod 210 to move to the right. During the movement of the third hydraulic rod 210 to the right, the internal pressure of the third hydraulic chamber 29, the second connecting hose 211, and the fourth hydraulic chamber 212 increases, driving the fourth hydraulic rod 213 to move to the left, and the fourth hydraulic rod 213 drives The movable plate 22 moves to the right side to knock and drive the fixed ears of the clamp to approach each other. When the movable plate 22 moves to squeeze the first hydraulic rod 25, the first hydraulic rod 25 moves to the back side, and the internal pressure of the first hydraulic bin 24, the first connecting hose 26, and the second hydraulic bin 27 increases, driving the second hydraulic rod 28 to extend, and fix the back side of the movable plate 22. At the same time, another group of movable plates 22 is also fixed, and the electric telescopic rod 5 is started. The electric telescopic rod 5 drives the base 1 to rise, and the base 1 drives the clamp to rise. At the same time, the telescopic rod 6 also rises to limit the trajectory of the base 1 rising and falling.

[0026] Example 2, see Figures 1-7 On the basis of the first embodiment, the supporting device 3 includes a vertical plate 31, which is fixedly connected to the top of the base 1. The front side of the vertical plate 31 is rotatably connected to a first rotating rod 32 through a bearing. The outer wall of the first rotating rod 32 is fixedly connected to a circular gear 33. The front side of the movable plate 22 is fixedly connected to a rack 34, and the circular gear 33 and the rack 34 are meshed with each other. The first rotating rod 32 movably passes through the vertical plate 31 and extends toward the front. A connecting plate 36 is fixedly connected to the bottom of the arc plate 7. A screw rod 39 is rotatably connected to the front of the connecting plate 36 through a bearing. The outer wall of the screw rod 39 is connected to the outer wall of the first rotating rod 32 through a sprocket chain 35. Mechanical linkage is achieved through the transmission connection between the first rotating rod 32 and the screw rod 39 to ensure synchronous operation of the device. The bottom of the arc plate 7 is fixedly connected to the fifth hydraulic chamber 38. A sleeve is threadedly connected to the outer wall of the screw rod 39. A fifth hydraulic rod 37 is slidably connected to a piston at one end of the fifth hydraulic chamber 38. The fifth hydraulic rod 37 is fixedly connected to the back of the sleeve. A sixth hydraulic rod 310 is slidably connected to a piston at one end of the fifth hydraulic chamber 38. A rubber block is fixedly connected to the bottom of the sixth hydraulic rod 310.

[0027] When the above device is in specific use, the moving plate 22 drives the rack 34 to move to the left. The rack 34 drives the circular gear 33 to rotate. The circular gear 33 drives the first rotating rod 32 to rotate. The first rotating rod 32 drives the sprocket chain 35 to rotate. The sprocket chain 35 drives the lead screw 39 to rotate. The lead screw 39 drives the sleeve to move backward. The sleeve squeezes the fifth hydraulic rod 37 to move backward. During the movement of the fifth hydraulic rod 37, the pressure in the fifth hydraulic chamber 38 increases, driving the sixth hydraulic rod 310 to move downward. The sixth hydraulic rod 310 drives the rubber block to move downward to support the arc plate 7 and the hoop.

[0028] Embodiment 3, refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 Based on Embodiment 1, the rotating device 4 includes a toothed ring 41. The toothed ring 41 is slidably connected to the inner wall of the chute. A first bevel gear 42 is fixedly connected to the outer wall of the lead screw 39. The bottom of the arc plate 7 is rotatably connected to a second rotating rod 43 through a bearing. A second bevel gear 44 is fixedly connected to the bottom of the second rotating rod 43. A driving gear 45 is fixedly connected to the top of the second rotating rod 43. The driving gear 45 meshes with the toothed ring 41. The first bevel gear 42 meshes with the second bevel gear 44. The rotating device 4 is slidably connected to the inner wall of the chute through the toothed ring 41 to ensure that there is no obstruction during the adjustment process. A first bevel gear 42 is fixedly connected to the outer wall of the lead screw 39, and the bottom of the arc plate 7 is rotatably connected to the second rotating rod 43 through a bearing, and the second rotating rod 43 is fixed with a second bevel gear 44. The meshing between the first bevel gear 42 and the second bevel gear 44 provides a more stable rotating function. The toothed ring 41 of the rotating device 4 meshes with the driving gear 45, making the rotating action smoother and further improving the overall stability. The driving gear 45 fixedly connected to the top of the second rotating rod 43 meshes with the toothed ring 41 to form an efficient rotating system. Due to the precise meshing of the first bevel gear 42 and the second bevel gear 44, the entire rotating mechanism can ensure that the arc plate 7 is more stable during the adjustment process and can be applied freely in various construction environments.

[0029] When the above device is in specific use, the lead screw 39 drives the first bevel gear 42 to rotate. The first bevel gear 42 drives the second bevel gear 44 to rotate. The second bevel gear 44 drives the second rotating rod 43 to rotate. The second rotating rod 43 drives the driving gear 45 to rotate. The driving gear 45 drives the toothed ring 41 to rotate towards the inner wall of the arc plate 7 on the back, further improving the stability of the arc plate 7.

[0030] As described above, the above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A device for adjusting the height of a power construction hoop, comprising an arc-shaped plate (7), an electric telescopic rod (5) is assembled on the top of the arc-shaped plate (7), and a base (1) is fixedly connected to the top of the electric telescopic rod (5); It is characterized in that, A knocking block (21) is assembled on the top of the base (1). There is a chute on the top of the base (1) for the sliding of the knocking block (21). A moving plate (22) is slidably connected to the top of the base (1). A fixing plate (23) is fixedly connected to the top of the base (1). A first hydraulic chamber (24) is assembled on the top of the base (1). One end of the piston inside the first hydraulic chamber (24) is slidably connected to a first hydraulic rod (25). A second hydraulic chamber (27) is fixedly connected to the bottom of the base (1) away from the first hydraulic chamber (24). One end of the piston inside the second hydraulic chamber (27) is slidably connected to a second hydraulic rod (28). A receiving groove for the sliding of the second hydraulic rod (28) is opened at the bottom of the base (1). The first hydraulic chamber (24) and the second hydraulic chamber (27) are connected by a first connecting hose (26). A hydraulic component is fixedly connected to the back of the moving plate (22). A supporting device (3) for supporting the arc-shaped plate (7) is assembled on the top of the base (1). A rotating device (4) for further improving the stability of the arc-shaped plate (7) is assembled on the top of the base (1).

2. The height adjustment device for a power construction hoop according to claim 1, wherein The hydraulic component includes a third hydraulic chamber (29). The third hydraulic chamber (29) is fixedly connected to the top of the base (1). One end of the piston inside the third hydraulic chamber (29) is slidably connected to a third hydraulic rod (210). The third hydraulic rod (210) is fixedly connected to the back of the moving plate (22). A fourth hydraulic chamber (212) is fixedly connected to the top of the base (1) away from the third hydraulic chamber (29). One end of the piston inside the fourth hydraulic chamber (212) is slidably connected to a fourth hydraulic rod (213). The fourth hydraulic rod (213) is fixedly connected to the front of the moving plate (22). The third hydraulic chamber (29) and the fourth hydraulic chamber (212) are connected by a second connecting hose (211).

3. The height adjustment device for power construction hoop according to claim 1, characterized in that The moving plate (22) and the fixing plate (23) are threadedly connected with a threaded rod. The two arc-shaped plates (7) are fixedly connected by bolts. An expansion rod (6) is fixedly connected to the top of the arc-shaped plate (7).

4. The height adjustment device for the electric power construction hoop according to claim 1, wherein The knocking block (21) is fixedly connected to the front of the moving plate (22). A chute is opened on the inner wall of the arc-shaped plate (7).

5. The height adjustment device for the power construction hoop according to claim 1, wherein, The supporting device (3) includes a vertical plate (31). The vertical plate (31) is fixedly connected to the top of the base (1). A first rotating rod (32) is rotatably connected to the front of the vertical plate (31) through a bearing. A circular gear (33) is fixedly connected to the outer wall of the first rotating rod (32). A rack (34) is fixedly connected to the front of the moving plate (22). The circular gear (33) and the rack (34) are meshed with each other.

6. The height adjustment device for a power construction hoop according to claim 5, characterized in that, The first rotating rod (32) movably penetrates the vertical plate (31) and extends toward the front. The bottom of the arc plate (7) is fixedly connected to a connecting plate (36). The front of the connecting plate (36) is rotatably connected to a screw rod (39) through a bearing. The outer wall of the screw rod (39) is transmission-connected to the outer wall of the first rotating rod (32) through a sprocket chain (35). The bottom of the arc plate (7) is fixedly connected to a fifth hydraulic chamber (38). The outer wall of the screw rod (39) is threadedly connected to a sleeve. A fifth hydraulic rod (37) is slidably connected to a piston at one end of the fifth hydraulic chamber (38). The fifth hydraulic rod (37) is fixedly connected to the back of the sleeve. A sixth hydraulic rod (310) is slidably connected to a piston at one end of the fifth hydraulic chamber (38). A rubber block is fixedly connected to the bottom of the sixth hydraulic rod (310).

7. The height adjustment device for a power construction hoop according to claim 1, characterized in that, The rotating device (4) comprises a gear ring (41), the gear ring (41) is slidably connected to the inner wall of the slide groove, the outer wall of the screw rod (39) is fixedly connected to a first bevel gear (42), the bottom of the arc plate (7) is rotatably connected to a second rotating rod (43) via a bearing, and the bottom of the second rotating rod (43) is fixedly connected to a second bevel gear (44).

8. The height adjustment device for a power construction hoop according to claim 7, characterized in that A driving gear (45) is fixedly connected to the top of the second rotating rod (43); the driving gear (45) and the gear ring (41) are meshed with each other; and the first bevel gear (42) and the second bevel gear (44) are meshed with each other.

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