Manhole cover mounting tool with guide positioning structure

Abstract

The utility model discloses a kind of well lid mounting tools with guiding positioning structure, it is related to municipal engineering field, including transport vehicle, the middle part of transport vehicle is provided with several slides, several slides are slidably matched and are provided with shell between;Well lid clamping mechanism, inside the shell, and the bottom end of well lid clamping mechanism extends to below shell, for clamping well lid, and well lid is moved to preset position in conjunction with transport vehicle;Guiding positioning structure, at the bottom end of well lid clamping mechanism, for positioning well lid to well mouth above;Well lid position adjusting mechanism, at the top of transport vehicle, and the bottom end of well lid position adjusting mechanism is connected with shell, for adjusting the ground clearance of well lid.The utility model realizes automatic clamping by well lid clamping mechanism;The bottom of guiding positioning structure is aligned with well mouth edge, so that well lid can be aligned with well mouth, overall improves construction efficiency and installation quality, meets the requirement of municipal engineering to well lid installation.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering, specifically to a manhole cover installation tool with a guide and positioning structure. Background Technology

[0002] In municipal construction, manhole covers, as key nodes connecting underground pipe networks to the ground, are widely used in roads, squares, green belts, and other scenarios, undertaking important functions such as drainage, electricity, and communication. With the acceleration of urbanization, municipal engineering projects have placed higher demands on the precision, efficiency, and safety of manhole cover installation.

[0003] In traditional construction, manhole cover installation mainly relies on manual labor. In recent years, although auxiliary installation tools for manhole covers have emerged, their principle is to use clamping components to engage with pre-set installation holes on the manhole cover, using clamping force to fix the cover and thus enabling movement. However, in actual construction scenarios, the structural design of these tools still has the following limitations:

[0004] (1) The clamping and alignment operation requires high precision, which restricts construction efficiency. The clamping tool needs to be precisely aligned with the small hole on the manhole cover; otherwise, it cannot penetrate into the small hole on the manhole cover, making it more troublesome to use and affecting the efficiency of municipal construction.

[0005] (2) Lack of guidance and positioning mechanism, that is, in the key step of lowering the manhole cover to the well opening, it is necessary to rely on manual visual judgment of position deviation, making it difficult to achieve rapid and accurate docking of the manhole cover and the well opening.

[0006] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0007] In view of the problems in the related technologies, this utility model proposes a manhole cover installation tool with a guide and positioning structure to overcome the above-mentioned technical problems existing in the existing related technologies.

[0008] Therefore, the specific technical solution adopted by this utility model is as follows:

[0009] A manhole cover installation tool with a guide and positioning structure includes:

[0010] The transport vehicle has several slide rails in its middle section, and a housing is installed between these slide rails in a sliding fit. A manhole cover clamping mechanism is located inside the housing, with its bottom end extending to the bottom of the housing. It is used to clamp the manhole cover and, in conjunction with the transport vehicle, move the manhole cover to a preset position. A guide and positioning structure is located at the bottom of the manhole cover clamping mechanism and is used to position the manhole cover above the manhole opening. A manhole cover position adjustment mechanism is located at the top of the transport vehicle, with its bottom end connected to the housing. It is used to adjust the height of the manhole cover above the ground.

[0011] Furthermore, to accommodate the clamping requirements of manhole covers of different specifications, the manhole cover clamping mechanism includes a support plate located inside the housing. Several fixing blocks are located at the bottom of the support plate, and each fixing block has a groove at its bottom. A slider is installed within the groove, and a manhole cover clamping block is located at the bottom of the slider. A disc is positioned between the manhole cover clamping blocks. A reduction motor is located at the top of the support plate, and the bottom of the motor's output shaft is connected to the center of the disc. The disc has several arc-shaped grooves inside, with one end of each groove close to the center of the disc and the other end away from the center. A connector is located at the bottom of the slider, away from the manhole cover clamping block and within the arc-shaped groove. An arc-shaped clamping surface is located on the side of the manhole cover clamping block closest to the center of the disc. Both the groove and the slider are T-shaped structures, and they slide together.

[0012] Furthermore, in order to enable the manhole cover to quickly and accurately connect with the manhole opening, the guide positioning structure includes a connecting block set at the bottom of the manhole cover clamping block, and a guide positioning block is set at the bottom of the connecting block; the number of connecting blocks and guide positioning blocks is at least three, and the connecting block is connected to the bottom of the manhole cover clamping block by bolts.

[0013] Furthermore, in order to adjust the height of the manhole cover off the ground, the manhole cover position adjustment mechanism includes a mounting frame set on the top of the transport vehicle, a linear actuator set in the middle of the mounting frame, and the bottom end of the output shaft of the linear actuator connected to the top of the housing.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) This utility model achieves automated clamping through the manhole cover clamping mechanism, reducing the difficulty of operation; by aligning the bottom of the guide positioning structure with the edge of the manhole, the manhole cover can be aligned with the manhole, improving the docking accuracy, and improving the overall construction efficiency and installation quality, meeting the requirements of municipal engineering for manhole cover installation, while reducing the amount of manual handling work.

[0016] (2) The manhole cover clamping mechanism can adapt to the clamping requirements of manhole covers of different specifications. The arc clamping surface can fit tightly against the edge of the manhole cover, improving the clamping firmness. The guide positioning structure can realize the quick and accurate docking of the manhole cover and the manhole opening, so that the manhole cover can fall into the manhole opening after being released by the manhole cover clamping mechanism.

[0017] (3) The manhole cover position adjustment mechanism can adjust the height of the manhole cover off the ground to adapt to the installation requirements of different construction scenarios. The position adjustment of the manhole cover is carried out through mechanical control, reducing the intensity of manual labor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a manhole cover installation tool with a guide positioning structure according to an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the inner top of the housing in a manhole cover installation tool with a guide positioning structure according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the bottom of the housing in a manhole cover installation tool with a guide positioning structure according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the manhole cover clamping mechanism in a manhole cover installation tool with a guide positioning structure according to an embodiment of the present utility model;

[0024] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle.

[0025] In the picture:

[0026] 1. Transport vehicle; 2. Slide rail; 3. Housing; 4. Manhole cover clamping mechanism; 401. Support plate; 402. Fixing block; 403. Slide groove; 404. Slider; 405. Manhole cover clamping block; 406. Disc; 407. Gear motor; 408. Arc groove; 409. Connector; 410. Arc clamping surface; 5. Guide positioning structure; 501. Connecting block; 502. Guide positioning block; 503. Bolt; 6. Manhole cover position adjustment mechanism; 601. Mounting frame; 602. Linear actuator. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, a manhole cover installation tool with a guide positioning structure is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-6 As shown, the manhole cover installation tool with guide positioning structure according to an embodiment of the present utility model includes: a transport vehicle 1, a plurality of slides 2 are provided in the middle of the transport vehicle 1, and a housing 3 is slidably fitted between the plurality of slides 2, that is, the side wall of the housing 3 is provided with protrusions for slidingly fitting with the slides 2; a manhole cover clamping mechanism 4, located inside the housing 3, and the bottom end of the manhole cover clamping mechanism 4 extends to the bottom of the housing 3, for clamping the manhole cover and moving the manhole cover to a preset position in conjunction with the transport vehicle 1; a guide positioning structure 5, located at the bottom end of the manhole cover clamping mechanism 4, for positioning the manhole cover above the manhole opening; and a manhole cover position adjustment mechanism 6, located at the top of the transport vehicle 1, and the bottom end of the manhole cover position adjustment mechanism 6 is connected to the housing 3, for adjusting the height of the manhole cover from the ground.

[0030] With the help of the above solution, this utility model achieves automated clamping through the manhole cover clamping mechanism 4, reducing the difficulty of operation; by aligning the bottom of the guide positioning structure 5 with the edge of the manhole, the manhole cover can be aligned with the manhole, improving the docking accuracy, thus improving the overall construction efficiency and installation quality, meeting the requirements of municipal engineering for manhole cover installation, and reducing the amount of manual handling.

[0031] In one embodiment, the manhole cover clamping mechanism 4 includes a support plate 401 disposed inside the housing 3. A plurality of fixing blocks 402 are disposed at the bottom end of the support plate 401. A sliding groove 403 is disposed at the bottom of each fixing block 402. A slider 404 is disposed within the sliding groove 403. A manhole cover clamping block 405 is disposed at the bottom of the slider 404. A disc 406 is disposed between the plurality of manhole cover clamping blocks 405. A reduction motor 407 is disposed at the top end of the support plate 401. The bottom end of the output shaft of the reduction motor 407 is connected to the disc 406. The center connection of 06 is provided. The interior of the disc 406 is provided with several arc-shaped grooves 408, with one end of the arc-shaped groove 408 close to the center of the disc 406 and the other end of the arc-shaped groove 408 away from the center of the disc 406. The bottom of the slider 404 is located at the end away from the manhole cover clamping block 405 and is provided with a connector 409 in the arc-shaped groove 408. The manhole cover clamping block 405 is provided with an arc-shaped clamping surface 410 on the side close to the center of the disc 406. The slide groove 403 and the slider 404 are both T-shaped structures, and the slide groove 403 and the slider 404 slide together.

[0032] When in use, the manhole cover clamping mechanism 4 can drive several sliders 404 to slide synchronously within the slide groove 403, enabling the manhole cover clamping block 405 to open and close, adapting to the clamping requirements of manhole covers of different specifications (i.e., diameters). The arc-shaped clamping surface 410 can closely fit the edge of the manhole cover, improving the clamping firmness.

[0033] The disc 406 is driven to rotate by the geared motor 407. The arc groove 408 on the disc 406 rotates synchronously with it. The arc groove 408 cooperates with the connector 409 at the bottom of the slider 404, causing the slider 404 to slide in the T-shaped groove 403 at the bottom of the fixed block 402. Since one end of the arc groove 408 is close to the center of the disc 406 and the other end is far from the center, when the disc 406 rotates, several sliders 404 will move closer to or further away from the center at the same time, thereby causing the manhole cover clamping block 405 to close or open. The arc clamping surface 410 can fit the edge of manhole covers of different diameters to achieve stable clamping. The T-shaped groove 403 and the slider 404 ensure the stability of the sliding process.

[0034] In one embodiment, the guide positioning structure 5 includes a connecting block 501 disposed at the bottom of the manhole cover clamping block 405, and a guide positioning block 502 disposed at the bottom of the connecting block 501; the number of connecting blocks 501 and guide positioning blocks 502 is at least three, and the connecting block 501 is connected to the bottom of the manhole cover clamping block 405 by bolts 503.

[0035] The guide positioning structure 5 is aligned with the edge of the well opening via at least three guide positioning blocks 502, and the well cover, clamped in the well cover clamping mechanism 4, is located at the center position between the guide positioning blocks 502, thereby achieving rapid and precise docking between the well cover and the well opening, allowing the well cover to fall into the well opening after being released by the well cover clamping mechanism 4. The bolt 503 connection method between the connecting block 501 and the well cover clamping block 405 allows the guide positioning structure 5 to be replaced after damage.

[0036] At least three guide positioning blocks 502 are used to form a ring positioning area. When the manhole cover is clamped by the manhole cover clamping mechanism 4 and the transport vehicle 1 and transported to the top of the manhole, the guide positioning blocks 502 contact the edge of the manhole and determine the position through multi-directional contact, so that the manhole cover clamped in the center position is coaxial with the manhole.

[0037] In one embodiment, the manhole cover position adjustment mechanism 6 includes a mounting frame 601 mounted on the top of the transport vehicle 1. A linear actuator 602 is mounted in the middle of the mounting frame 601. The linear actuator 602 can be equipped with components such as an electric push rod or a cylinder according to actual conditions and needs. The bottom end of the output shaft of the linear actuator 602 is connected to the top end of the housing 3.

[0038] The manhole cover position adjustment mechanism 6 drives the housing 3 to move up and down along the slide rail 2 via the linear actuator 602 on the mounting frame 601, thereby adjusting the height of the manhole cover off the ground to adapt to different construction scenarios (such as differences in road surface height and changes in manhole depth). When moving the manhole cover, it is raised to prevent collision with road protrusions. When installing the manhole cover, it is lowered to the lowest position, and then the manhole cover clamping mechanism 4 releases the cover. The manhole cover position adjustment mechanism 6 is easy to operate, adjusting the position of the manhole cover through mechanical control, reducing manual labor intensity.

[0039] The linear actuator 602, fixed by the mounting bracket 601, outputs axial driving force, which drives the housing 3 to slide up and down along the slide rail 2 of the transport vehicle 1, thereby realizing the height adjustment of the manhole cover clamping mechanism 4 and the manhole cover installed in the housing 3, and meeting the different height requirements for obstacle avoidance during movement and lowering during installation.

[0040] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0041] First, the manhole cover installation tool of this utility model is moved to the manhole cover to be installed by the transport vehicle 1. The manhole cover position adjustment mechanism 6 drives the housing 3 to descend, so that the manhole cover clamping block 405 of the manhole cover clamping mechanism 4 is in an open state and fits the manhole cover. Then, the reduction motor 407 starts, drives the disc 406 to rotate, so that the manhole cover clamping block 405 closes and clamps the manhole cover through the arc clamping surface 410. The manhole cover position adjustment mechanism 6 drives the housing 3 to rise and lift the manhole cover off the ground.

[0042] After the transport vehicle 1 moves to the wellhead position, the well cover position adjustment mechanism 6 drives the housing 3 to descend again. By moving the transport vehicle 1, the guide positioning block 502 of the guide positioning structure 5 contacts the edge of the wellhead, ensuring that the well cover is aligned with the wellhead. Finally, the well cover position adjustment mechanism 6 lowers the well cover to near the installation height, and the well cover clamping block 405 of the well cover clamping mechanism 4 opens to release the well cover, allowing it to fall into the wellhead. After the installation is completed, the tool is reset and moved to the next work point.

[0043] The manhole covers are made of D400 grade ductile iron with five protective features (anti-theft, anti-fall, anti-slip, anti-displacement, and noise reduction). All manhole covers under motor vehicle lanes and non-motor vehicle lanes must be reinforced.

[0044] The transport vehicle 1 can be either push-type or automatic: if it is push-type, the transport vehicle 1 uses omnidirectional or directional wheels at the bottom to roll the wheels by human push, and uses the friction between the wheels and the ground to achieve overall movement; if it is automatic, the transport vehicle 1 integrates drive wheels, batteries and control system at the bottom, drives the wheels to rotate by motor, and achieves automated movement by remote control or autonomous navigation.

[0045] The geared motor 407 and linear actuator 602 are connected to an external control element (such as a PLC controller) via wires. The external control element sends electrical signals (such as forward, reverse, and stop signals) to the terminals of the geared motor 407 to control the rotation direction and start / stop of the output shaft. The geared motor 407 uses a worm gear reduction structure, so the disc 406 will not rotate in the opposite direction due to the weight of the manhole cover or external forces, thus ensuring the stable position of the slider 404 and the manhole cover clamping block 405, preventing loosening and achieving self-locking. Similarly, the external control element can control the extension and retraction of the output shaft of the linear actuator 602. The user can directly select a model with a matching stroke based on the height adjustment range required during manhole cover installation.

[0046] In summary, this utility model achieves automated clamping through the manhole cover clamping mechanism 4, reducing operational difficulty. By aligning the bottom of the guide positioning structure 5 with the edge of the manhole, the manhole cover can be aligned with the manhole, improving docking accuracy. Overall, this improves construction efficiency and installation quality, meeting the requirements of municipal engineering for manhole cover installation while reducing manual handling workload. The manhole cover clamping mechanism 4 can adapt to the clamping needs of manhole covers of different specifications. The arc-shaped clamping surface 410 can tightly fit the edge of the manhole cover, improving clamping stability. The guide positioning structure 5 enables rapid and precise docking of the manhole cover and the manhole, allowing the manhole cover to fall into the manhole after being released by the manhole cover clamping mechanism 4. The manhole cover position adjustment mechanism 6 can adjust the height of the manhole cover from the ground, adapting to the installation needs of different construction scenarios. Mechanical control of the manhole cover position adjustment reduces manual labor intensity.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A manhole cover installation tool with a guide and positioning structure, characterized in that, include: The transport vehicle (1) has several slides (2) in the middle, and a housing (3) is provided between the slides (2) in a sliding fit. The manhole cover clamping mechanism (4) is located inside the housing (3), and the bottom end of the manhole cover clamping mechanism (4) extends to the bottom of the housing (3) for clamping the manhole cover and moving the manhole cover to a preset position in conjunction with the transport vehicle (1); The guide positioning structure (5) is located at the bottom end of the manhole cover clamping mechanism (4) and is used to position the manhole cover above the manhole opening; The manhole cover position adjustment mechanism (6) is located at the top of the transport vehicle (1), and the bottom end of the manhole cover position adjustment mechanism (6) is connected to the housing (3) for adjusting the height of the manhole cover from the ground.

2. The manhole cover installation tool with a guide positioning structure according to claim 1, characterized in that, The manhole cover clamping mechanism (4) includes a support plate (401) disposed inside the housing (3). The bottom end of the support plate (401) is provided with a plurality of fixing blocks (402). The bottom of the fixing blocks (402) is provided with a sliding groove (403). A slider (404) is disposed in the sliding groove (403). The bottom of the slider (404) is provided with a manhole cover clamping block (405). A disc (406) is arranged between several of the manhole cover clamping blocks (405). A geared motor (407) is arranged at the top of the support plate (401). The bottom end of the output shaft of the geared motor (407) is connected to the center of the disc (406). Several arc-shaped grooves (408) are arranged inside the disc (406). One end of the arc-shaped groove (408) is close to the center of the disc (406), and the other end of the arc-shaped groove (408) is far away from the center of the disc (406). The bottom of the slider (404) is located away from the end of the manhole cover clamping block (405) and is provided with a connector (409) in the arc groove (408).

3. The manhole cover installation tool with a guide positioning structure according to claim 2, characterized in that, The manhole cover clamping block (405) has an arc-shaped clamping surface (410) on the side near the center of the disc (406).

4. A manhole cover installation tool with a guide positioning structure according to claim 2, characterized in that, Both the groove (403) and the slider (404) are T-shaped structures, and the groove (403) and the slider (404) slide together.

5. A manhole cover installation tool with a guide positioning structure according to claim 2, characterized in that, The guide positioning structure (5) includes a connecting block (501) disposed at the bottom end of the manhole cover clamping block (405), and a guide positioning block (502) is disposed at the bottom end of the connecting block (501).

6. A manhole cover installation tool with a guide positioning structure according to claim 5, characterized in that, The number of the connecting block (501) and the guide positioning block (502) is at least three, and the connecting block (501) is connected to the bottom end of the well cover clamping block (405) by bolts (503).

7. A manhole cover installation tool with a guide positioning structure according to claim 1, characterized in that, The manhole cover position adjustment mechanism (6) includes a mounting frame (601) set on the top of the transport vehicle (1), and a linear actuator (602) is set in the middle of the mounting frame (601). The bottom end of the output shaft of the linear actuator (602) is connected to the top end of the housing (3).

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