Municipal road embedded part digging and removing device

Abstract

The invention discloses a municipal road embedded part digging and removing device, and relates to the technical field of municipal road construction.The municipal road embedded part digging and removing device comprises a hollow pipe, and the middle of the outer side of the hollow pipe is rotationally connected with an inner supporting frame through a bearing; an annular gear ring and a hydraulic breaking hammer are installed on the inner supporting frame, the annular gear ring conducts intermittent rotating motion with the axis of the hollow pipe as the circle center, the hydraulic breaking hammer and the annular gear ring conduct intermittent rotating motion synchronously, and a hydraulic rod is installed at the position, close to the hydraulic breaking hammer, of the inner side of the annular gear ring; the distance between the hydraulic breaking hammer and the hollow pipe is adjusted through the hydraulic rod, so that the rotating radius of the hydraulic breaking hammer is adjusted, the hydraulic breaking hammer and the annular gear ring synchronously intermittently rotate, uniform equal-angle rotating breaking is conducted around the periphery of the embedded part, and meanwhile according to the specific size of the embedded part, the size of the embedded part can be adjusted. The crushing range is accurately controlled, the position deviation during installation is corrected through displacement compensation, repeated disassembly and assembly are not needed, and the disassembly efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal road construction, and particularly to a device for excavating and removing buried parts of municipal roads. Background Art

[0002] Buried parts of municipal roads are various components pre-buried underground or in structures during the construction of municipal roads, used for subsequent connection, fixation or support of other facilities, and are usually composed of steel plates and anchor bolts. During construction, the steel plate is first placed horizontally in the foundation pit, connected and fixed to the foundation steel bars through the anchor bolts, and then concrete is poured. Its function is to provide a stable foundation for traffic sign poles, ensuring that the sign poles can withstand wind loads and their own weights during long-term use and remain upright and stable.

[0003] In the renovation of municipal roads or pipeline renewal projects, it is often necessary to remove the original buried parts (such as street lamp bases, traffic sign pole bases, underground pipeline fixtures, etc.). Currently, the main removal method is through heavy machinery crushing. Heavy machinery has a large power and strong crushing ability, and can crush structures such as concrete around the buried parts in a short time, quickly expose and remove the buried parts, greatly improving the construction efficiency and shortening the project time. However, in practical applications, heavy machinery has a large volume and requires a large construction space for operation and rotation. The strong impact force and vibration generated during the process are likely to damage the surrounding road structures, underground pipelines, etc. It is suitable for large-scale use, but in some construction sites with narrow spaces, such as urban alleys or areas with dense buildings, it may be difficult to operate, restricting its scope of use.

[0004] When carrying out the operation of removing buried parts at a construction site with limited space, small professional equipment is usually used for local cutting. Common equipment such as handheld small hydraulic breaker. This type of equipment is particularly suitable for use in environments with limited space due to its small size, light weight and flexible operation. However, the small hydraulic breaker requires manual assistance in automatic positioning and cannot automatically and accurately crush the cement around the buried parts. During the operation, manual assistance is also required to change the crushing point of the breaker, and the striking force, angle and frequency of the breaker must be precisely controlled to break the concrete around the buried parts in a short time. Once there is a deviation, more time will be consumed.

[0005] In view of the above problems, there is an urgent need to design a device for removing buried parts suitable for narrow roads, which should ensure flexibility, guarantee the crushing angle and position, and at the same time improve its removal efficiency. Summary of the Invention

[0006] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a device for excavating and removing buried parts of municipal roads to solve the problem proposed in the above background technology, that is, during the demolition of existing small buried parts, the ground breaking equipment cannot automatically locate and replace, resulting in low demolition efficiency.

[0007] To achieve the above object, the present invention provides the following technical solution: A device for excavating and removing buried parts of municipal roads, including a hollow tube. The middle part of the outer side of the hollow tube is rotatably connected with an inner support frame through a bearing. An annular gear that performs intermittent rotational motion around the axis of the hollow tube and a hydraulic breaker that performs intermittent rotational motion synchronously with the annular gear are installed on the inner support frame. A hydraulic rod is installed at a position on the inner side of the annular gear close to the hydraulic breaker. The distance between the hydraulic breaker and the hollow tube is adjusted through the hydraulic rod to adjust the rotation radius of the hydraulic breaker. A main limiting member that can rotate along the inner wall of the hollow tube penetrates through the hollow tube. A clamp assembly for clamping the buried part is also installed on the inner support frame.

[0008] Preferably, an incomplete gear with partial teeth is meshed on the inner side of the annular gear. A driving motor is installed above the incomplete gear, and the annular gear is driven to perform intermittent rotational motion through the incomplete gear.

[0009] Preferably, a chute is installed at a position on the inner support frame corresponding to the hydraulic breaker. A damping spring shock absorber connected to the hydraulic breaker is slidably connected in the chute. One side of the damping spring shock absorber is connected to the piston rod of the hydraulic rod, and the damping spring shock absorber is driven by the hydraulic rod to perform reciprocating horizontal movement along the length direction of the chute.

[0010] Preferably, an outer support frame is installed at a position above the middle part of the outer side of the hollow tube. The outer support frame wraps the annular gear inside, and the incomplete gear is installed on the outer support frame through a bearing.

[0011] Preferably, the main limiting member includes a lead screw. A sleeve is sleeved outside the lead screw. An activity handle and a fixed handle are successively arranged at a position on the lead screw close to the hollow tube.

[0012] Preferably, the other end of the lead screw is connected with a spiral blade. A return spring is connected to the bottom of the sleeve close to the spiral blade. By rotating the fixed handle to drive the lead screw to rotate, the spiral blade is further driven to embed into the ground, and the return spring is compressed accordingly.

[0013] Preferably, the fixed handle is welded to the top of the lead screw, the movable handle is threadedly connected to the lead screw, a circular chuck is provided on the outer part of the sleeve, the movable handle and the circular chuck clamp and fix the hollow tube, and the movable handle rotates and displaces along the lead screw towards the position of the circular chuck to adjust the distance between the movable handle and the circular chuck.

[0014] Preferably, the fixture assembly includes two electric telescopic rods, clamping plates are installed at the ends of each electric telescopic rod, a cross bar is slidably connected to the other end of each electric telescopic rod, and a cylinder for pushing the cross bar to slide horizontally is connected to one side of the cross bar.

[0015] Preferably, two transverse chutes are provided on the surface of the cross bar, and eight-shaped chutes are provided on the surface of the inner support frame corresponding to the positions of the transverse chutes, and the two electric telescopic rods move relative to each other along the transverse chutes.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The hydraulic breaker is driven by an incomplete gear to rotate intermittently synchronously with the ring gear. During the intermittent period of the rotation action, the hydraulic breaker starts to hammer the cement on the ground. When the tooth part of the incomplete gear re-engages with the tooth of the ring gear, the ring gear continues to rotate, automatically moving the hydraulic breaker to the next hammering position. This process realizes precise intermittent motion, accurately controls the rotation angle and stop position of the ring gear, enabling the hydraulic breaker to rotate and break evenly at equal angles around the embedded part, thereby comprehensively and evenly breaking the concrete around the embedded part.

[0017] In addition, by precisely controlling the hydraulic rod, the distance between the hydraulic breaker and the hollow tube can be accurately adjusted, thereby changing the rotation radius of the hydraulic breaker, enabling the precise control of the breaking range according to the specific size of the embedded part, effectively preventing accidental damage to the embedded part and the objects around it, and significantly improving the safety and accuracy of the breaking operation.

[0018] Meanwhile, the newly added position correction function allows the operator to loosen the hollow tube by rotating the movable handle, and then flexibly adjust the hollow tube to drive equipment such as the inner support frame and the ring gear to rotate around the sleeve of the main limiting part, thereby shifting the rotation center point of the hydraulic breaker, changing its original breaking path, and correcting the deviation through displacement compensation. During the use process, there is no need to repeatedly adjust the position of the spiral blade, saving time costs and improving the removal efficiency of the embedded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2This is a schematic diagram of the upward view structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the ring gear and the incomplete gear structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the fixture assembly structure of the present invention.

[0023] Figure 5 This is a schematic cross-sectional view of the main limit member of the present invention.

[0024] Figure 6 This is the present invention Figure 5 The enlarged structure diagram at position A in the middle.

[0025] In the figure: 1, hollow tube; 2, inner support frame; 3, ring gear; 4, hydraulic breaker; 5, hydraulic rod; 6, outer support frame; 7, main limit member; 701, lead screw; 702, sleeve; 703, movable handle; 704, fixed handle; 705, circular chuck; 706, spiral blade; 707, return spring; 8, fixture assembly; 801, electric telescopic rod; 802, clamping plate; 803, cross bar; 804, cylinder; 9, incomplete gear; 10, drive motor; 11, damping spring shock absorber. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 to 6 , the present invention provides a technical solution: a device for excavating and removing municipal road embedded parts, including a hollow tube 1. The middle part of the outer side of the hollow tube 1 is rotatably connected with an inner support frame 2 through a bearing. An inner support frame 2 is provided with a ring gear 3 that performs an intermittent rotational movement around the axis of the hollow tube 1 and a hydraulic breaker 4 that performs an intermittent rotational movement synchronously with the ring gear 3. A hydraulic rod 5 is installed at a position on the inner side of the ring gear 3 close to the hydraulic breaker 4. The distance between the hydraulic breaker 4 and the hollow tube 1 is adjusted through the hydraulic rod 5 to adjust the rotation radius of the hydraulic breaker 4; A main limit member 7 that can rotate along the inner wall of the hollow tube 1 penetrates through the inside of the hollow tube 1. An inner support frame 2 is also provided with a fixture assembly 8 for clamping the embedded parts.

[0028] In this embodiment, as Figure 1As shown, an incomplete gear 9 with no teeth on a part of its inner circumference meshes with the inner side of the annular gear ring 3. A driving motor 10 is installed above the incomplete gear 9, and the incomplete gear 9 drives the annular gear ring 3 to perform an intermittent rotational motion.

[0029] It should be noted that in this embodiment, the teeth of the incomplete gear 9 are only distributed on a part of the circumference. When the incomplete gear 9 meshes with the annular gear ring 3, the teeth of the toothed part of the incomplete gear 9 interact with the teeth of the annular gear ring 3 to push the annular gear ring 3 to rotate. When the toothless part of the incomplete gear 9 rotates to face the annular gear ring 3, the annular gear ring 3 stops rotating, thus achieving intermittent rotation. At the same time, the hydraulic breaker 4 rotates intermittently synchronously with the annular gear ring 3. During the interval of the rotational motion, the hydraulic breaker 4 starts to work and hammers the cement on the ground. When the toothed part of the incomplete gear 9 meshes with the teeth of the annular gear ring 3 again, the annular gear ring 3 continues to rotate and automatically transfers the hydraulic breaker 4 to the next hammering point.

[0030] Through the meshing transmission between the incomplete gear 9 and the annular gear ring 3, an accurate intermittent motion is achieved, and the rotation angle and the stopping position of the annular gear ring 3 are accurately controlled. This enables the hydraulic breaker 4 to rotate at equal angles along the periphery of the embedded part and break the concrete around the embedded part comprehensively and evenly.

[0031] In this embodiment, as Figure 2 and Figure 3 shown, a chute is installed on the inner support frame 2 corresponding to the position of the hydraulic breaker 4. A damping spring shock absorber 11 connected to the hydraulic breaker 4 is slidably connected in the chute. One side of the damping spring shock absorber 11 is connected to the piston rod of the hydraulic rod 5, and the hydraulic rod 5 drives the damping spring shock absorber 11 to perform a reciprocating horizontal movement along the length direction of the chute.

[0032] It should be noted that the damping spring shock absorber 11 connected to the hydraulic breaker 4 is slidably connected in the chute. One side of this damping spring shock absorber 11 is connected to the piston rod of the hydraulic rod 5. When performing a breaking operation around the embedded part, by controlling the hydraulic rod 5, the distance between the hydraulic breaker 4 and the hollow tube 1 can be accurately adjusted, thereby changing the rotation radius of the hydraulic breaker 4. Thus, the breaking range can be accurately controlled according to the size of the embedded part, effectively avoiding accidental damage to the embedded part and surrounding objects, and greatly improving the safety and accuracy of the breaking operation.

[0033] In addition, the damping spring shock absorber 11 has a certain shock absorption effect. When the hydraulic breaker 4 hammers the ground, it reduces the transmission of vibration, further ensuring the stable operation of the annular gear ring 3 and the incomplete gear 9 at the top.

[0034] In this embodiment, as Figure 1 and Figure 3As shown in the figure, an outer support frame 6 is installed at the upper-middle position on the outer side of the hollow tube 1. The outer support frame 6 wraps the annular gear 3 inside, and the incomplete gear 9 is installed on the outer support frame 6 through bearings.

[0035] It should be noted that the outer support frame 6 assists in supporting and limiting the annular gear 3 and the incomplete gear 9. When the annular gear 3 rotates, the outer support frame 6 remains static, supporting the driving motor 10 and the incomplete gear 9 to prevent the incomplete gear 9 from disengaging from the annular gear 3.

[0036] In addition, an arc-shaped slide rail is provided on the outer support frame 6, which wraps the annular gear 3 inside, ensuring that the annular gear 3 can rotate along a predetermined trajectory under the drive of the driving motor 10, guaranteeing the safety and stability of the entire excavation and removal device.

[0037] In this embodiment, as Figure 5 and Figure 6 shown, the main limiting member 7 includes a lead screw 701. A sleeve 702 is sleeved outside the lead screw 701. A movable handle 703 and a fixed handle 704 are successively provided at the position of the lead screw 701 close to the hollow tube 1.

[0038] The other end of the lead screw 701 is connected to a spiral blade 706. A return spring 707 is connected to the bottom of the sleeve 702 close to the spiral blade 706. By rotating the fixed handle 704 to drive the lead screw 701 to rotate, the spiral blade 706 is further driven to embed into the ground, and the return spring 707 is compressed accordingly.

[0039] It should be noted that the entire device is limited by the main limiting member 7. By rotating the fixed handle 704 to drive the lead screw 701 to rotate, the rotation of the lead screw 701 can precisely control the depth of the spiral blade 706 embedded in the ground, so that the position of the main limiting member 7 exposed above the ground is flush with the bottom of the outer support frame 6. After the spiral blade 706 is embedded in the ground, the setting of the spiral blade 706 enhances the grasping force on the ground, can penetrate deep into the ground to form a stable support. Compared with the traditional planar contact limit, its ground-gripping effect is better, it can adapt to different geological conditions, and cooperate with the outer support frame 6 for auxiliary support to achieve precise positioning and fixation of the equipment, avoiding affecting the operation accuracy.

[0040] A return spring 707 is added at the bottom of the sleeve 702, which plays a buffering role when the spiral blade 706 is embedded in the ground, reducing the damage to the equipment caused by excessive rotation or excessive force. At the same time, when the limit is released, it can assist the main limiting member 7 to quickly reset.

[0041] In addition, in this embodiment, the main limit member 7 is generally placed directly above the embedded part. At this time, the street lamp or sign pole originally installed above the embedded part has been moved, and the soil near the base is relatively loose compared to the concrete soil near the embedded part. Manually rotating the fixed handle 704 can also easily embed the spiral blade 706 into the center of the soil. In other embodiments, the manually rotating fixed handle 704 can also be replaced by an electric one according to the geological conditions.

[0042] In this embodiment, if Figure 6 As shown, the fixed handle 704 is welded to the top of the screw rod 701, the movable handle 703 is threadedly connected to the screw rod 701, and a circular chuck 705 is provided on the outside of the sleeve 702. The movable handle 703 and the circular chuck 705 clamp and fix the hollow tube 1, and the movable handle 703 rotates and moves along the screw rod 701 toward the position of the circular chuck 705 to adjust the distance between the movable handle 703 and the circular chuck 705.

[0043] It should be noted that after the spiral blade 706 is embedded in the ground, the positions of the entire main limit member 7, the annular gear ring 3 and the hydraulic breaker 4 are basically fixed. During the crushing process, as the concrete pavement is broken, the position of the embedded parts is revealed. If a deviation from the predicted position is found, the movable handle 703 is rotated. When the movable handle 703 is separated from the circular chuck 705, the entire hollow tube 1 can drive the inner support frame 2 and the annular gear ring 3 and other equipment to rotate around the sleeve 702 of the main limit member 7, transfer the rotation center point of the hydraulic breaker 4, and change the original crushing path of the hydraulic breaker 4. After the position is corrected, the movable handle 703 is rotated again to reset it, and the hollow tube 1 is clamped and fixed again by the movable handle 703 and the circular chuck 705. The deviation correction is achieved through displacement compensation. During use, there is no need to repeatedly adjust the position of the spiral blade 706, saving time and cost.

[0044] In this embodiment, if Figure 4 As shown, the clamp assembly 8 includes two electric telescopic rods 801, a clamping plate 802 is installed at the end of each electric telescopic rod 801, a cross bar 803 is slidably connected to the other end of each electric telescopic rod 801, and a cylinder 804 is connected to one side of the cross bar 803 to push the cross bar 803 to slide horizontally.

[0045] Two transverse grooves are provided on the surface of the crossbar 803, and an eight-shaped groove is provided on the surface of the inner support frame 2 at the position corresponding to the transverse groove, and the two electric telescopic rods 801 move relative to each other along the transverse groove.

[0046] Two figure-eight slides are provided on the inner support frame 2, and the electric telescopic rod 801 passes through. At the intersection of the transverse slide and the figure-eight slide, the push rod pushes the cross bar 803 to move, driving the two electric telescopic rods 801 and the bottom clamping plate 802 to move relative to each other.

[0047] When the piston rod of the specific cylinder 804 moves forward, it pushes the cross bar 803 forward. At this time, the two electric telescopic rods 801 move closer to each other, driving the two clamping plates 802 to move closer to each other, clamping and fixing the edge of the embedded part at the bottom. Then, the electric telescopic rods 801 can be started to rise to pull out the embedded part. On the contrary, the two clamping plates 802 move away from each other to release the embedded part.

[0048] Working principle: When using this embedded part excavation and removal device, first install the annular gear ring 3 and the hydraulic breaker 4, and place the whole device above the embedded part. When placing, it should be noted that the annular gear ring 3 should include the whole embedded part in the center to ensure that the hydraulic breaker 4 will not hit the steel pipe and steel plate of the embedded part when hitting the cement ground, and make a preliminary placement first. Secondly, rotate the fixed handle 704 clockwise. The rotation of the fixed handle 704 drives the screw rod 701 in the sleeve 702 to rotate, further driving the spiral blade 706 at the bottom to rotate. As the spiral blade 706 rotates and embeds into the ground, the whole main limiting part 7 is erected on the ground until the lower surface of the whole main limiting part 7 is flush with the lower surface of the outer support frame 6. Then, start the hydraulic rod 5 to adjust the rotation radius of the hydraulic breaker 4, and control the hydraulic breaker 4 to always break along the edge of the embedded part. Start the drive motor 10, and the drive motor 10 drives the incomplete gear 9 to rotate. When the incomplete gear 9 meshes with the annular gear ring 3, it pushes the annular gear ring 3 to rotate. When the toothless part of the incomplete gear 9 turns to face the annular gear ring 3, the annular gear ring 3 stops rotating, and the hydraulic breaker 4 starts to work. The hydraulic breaker 4 in this example belongs to the prior art in this field, hammering the cement on the ground. When the tooth part of the incomplete gear 9 meshes with the tooth of the annular gear ring 3 again, the annular gear ring 3 continues to rotate, automatically transferring the hydraulic breaker 4 to the next hammering point for hammering. The hydraulic breaker 4 rotates around the outside of the hollow tube 1 in a circle, breaking the ground while rotating.

[0049] Next, observe the position of the embedded part. If the embedded part is in the central position, there is no need to change the position of the hydraulic breaker 4. If the position of the embedded part deviates from the expected position, rotate the movable handle 703 counterclockwise. The movable handle 703 moves away from the hollow tube 1, and the hollow tube 1 can be rotated around the sleeve 702 arbitrarily to change the position of the hollow tube 1, further changing the rotation center of the hydraulic breaker 4. Until the hydraulic breaker 4 wraps the embedded part in the middle again, then rotate the movable handle 703 clockwise again, so that the movable handle 703 and the circular chuck 705 clamp and fix the hollow tube 1 again.

[0050] Finally, the embedded part is clamped and pulled out by the fixture. The electric telescopic rod 801 is activated, and the electric telescopic rod 801 descends until the two clamping plates 802 approach the embedded part. At the same time, the cylinder 804 is activated, and the piston rod of the cylinder 804 moves forward, pushing the cross bar 803 forward, driving the two clamping plates 802 to approach each other, clamping and fixing the edge of the embedded part. Then, the electric telescopic rod 801 is raised to pull out the entire embedded part.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for excavating and removing embedded parts of a municipal road, comprising a hollow tube (1), characterized in that: The middle part of the outer side of the hollow tube (1) is rotatably connected to an inner support frame (2) via a bearing, and an annular gear ring (3) that performs intermittent rotational motion with the axis of the hollow tube (1) as the center of the circle and a hydraulic breaker (4) that performs intermittent rotational motion synchronously with the annular gear ring (3) are installed on the inner support frame (2), and a hydraulic rod (5) is installed on the inner side of the annular gear ring (3) near the hydraulic breaker (4), and the distance between the hydraulic breaker (4) and the hollow tube (1) is adjusted by the hydraulic rod (5) to adjust the rotation radius of the hydraulic breaker (4); A main stopper (7) that can rotate along the inner wall of the hollow tube (1) passes through the interior of the hollow tube (1), and a clamp assembly (8) for clamping the embedded part is also installed on the inner support frame (2).

2. The municipal road embedded component excavation and removal device according to claim 1, characterized in that: An incomplete gear (9) without some teeth is meshed on the inner side of the annular gear ring (3), and a driving motor (10) is installed above the incomplete gear (9), driving the annular gear ring (3) to perform intermittent rotational motion through the incomplete gear (9).

3. The municipal road embedded component excavation and removal device according to claim 1, characterized in that: A slide groove is installed on the inner support frame (2) at a position corresponding to the hydraulic breaker (4), and a damping spring shock absorber (11) connected to the hydraulic breaker (4) is slidably connected in the slide groove. One side of the damping spring shock absorber (11) is connected to the piston rod of the hydraulic rod (5), and the damping spring shock absorber (11) is driven by the hydraulic rod (5) to reciprocate horizontally along the length direction of the slide groove.

4. The municipal road embedded component excavation and removal device according to claim 2, characterized in that: An outer support frame (6) is installed at an upper middle position of the outer side of the hollow tube (1), the outer support frame (6) wraps the annular gear ring (3) inside, and the incomplete gear (9) is installed on the outer support frame (6) via a bearing.

5. The municipal road embedded component excavation and removal device according to claim 1, characterized in that: The main limiting member (7) comprises a screw rod (701), a sleeve (702) is sleeved on the outside of the screw rod (701), and a movable handle (703) and a fixed handle (704) are sequentially provided at a position of the screw rod (701) close to the hollow tube (1).

6. The municipal road embedded component excavation and removal device according to claim 5, characterized in that: The other end of the screw rod (701) is connected to a spiral blade (706), and a reset spring (707) is connected to the bottom of the sleeve (702) near the spiral blade (706). The screw rod (701) is rotated by rotating the fixed handle (704), further driving the spiral blade (706) to embed into the ground, accompanied by the compression of the reset spring (707).

7. The municipal road embedded component excavation and removal device according to claim 6, characterized in that: The fixed handle (704) is welded to the top of the screw rod (701), the movable handle (703) is threadedly connected to the screw rod (701), a circular chuck (705) is provided on the outside of the sleeve (702), the movable handle (703) and the circular chuck (705) clamp and fix the hollow tube (1), and the movable handle (703) is rotated and displaced along the screw rod (701) toward the circular chuck (705) to adjust the distance between the movable handle (703) and the circular chuck (705).

8. The municipal road embedded component excavation and removal device according to claim 1, characterized in that: The clamp assembly (8) comprises two electric telescopic rods (801), a clamping plate (802) is installed at the end of each electric telescopic rod (801), a cross bar (803) is slidably connected to the other end of each electric telescopic rod (801), and a cylinder (804) is connected to one side of the cross bar (803) for pushing the cross bar (803) to slide horizontally.

9. The municipal road embedded component excavation and removal device according to claim 8, characterized in that: Two transverse sliding grooves are provided on the surface of the crossbar (803), and an eight-shaped sliding groove is provided on the surface of the inner support frame (2) at a position corresponding to the transverse sliding groove, and the two electric telescopic rods (801) move relative to each other along the transverse sliding groove.

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