Multi-functional handcart for well lid construction

Abstract

The application relates to a multifunctional handcart for well lid construction, and relates to the field of well lid construction equipment, which comprises a frame serving as the main body structure of the handcart, two ends of the frame forming an operation end and a working end; a wheel rotatably arranged on the frame and located between the operation end and the working end, capable of serving as a fulcrum to lift the working end by pressing down the operation end; a connecting assembly arranged at the working end and capable of being fixedly connected with the well lid; a supporting wheel rotatably arranged with the frame; a supporting assembly for connecting the supporting wheel with the frame and capable of transferring the supporting wheel from the rear of the working end to the front of the working end, so that the supporting wheel can serve as a supporting point and support the handcart with the well lid in a balanced state together with the wheel. The application has the effects of relieving the burden of the operator and improving the convenience of well lid carrying during the movement of the well lid without the need of keeping the operator in a pressed-down state.

Description

Technical Field

[0001] This application relates to the field of manhole cover construction equipment, and in particular to a multi-functional handcart for manhole cover construction. Background Technology

[0002] With the installation of underground cables and underground drainage channels, a large number of inspection wells and observation wells are set up on the ground. It is necessary to install manhole covers to seal the openings of the inspection wells and observation wells. During the replacement of manhole covers, it is necessary to disassemble and move the manhole covers.

[0003] Existing technology publication number CN213171397U discloses a utility model patent for installing manhole covers for rainwater and sewage inspection wells. In this patent, the operator presses down on a steel pipe frame using a hand grip. The steel pipe frame, with wheels as a fulcrum, lifts the manhole cover body, and then, with the help of the wheels, transports the manhole cover to the installation position, completing the transport. However, in this prior art, the operator needs to maintain a downward pressing posture while pushing the manhole cover, thus increasing the operator's workload and making the transport of the manhole cover inconvenient. Utility Model Content

[0004] To address the issue of workers needing to maintain a downward pressing posture to move manhole covers, which increases their workload and makes manhole cover transportation inconvenient, this application provides a multi-functional handcart for manhole cover construction.

[0005] The multi-functional handcart for manhole cover construction provided in this application adopts the following technical solution:

[0006] A multi-functional handcart for manhole cover construction, comprising:

[0007] The frame, as the main structure of the handcart, has an operating end and a working end at both ends;

[0008] The wheel is rotatably mounted on the frame and located between the operating end and the working end, serving as a fulcrum so that the working end can be lifted by pressing down on the operating end;

[0009] A connecting component, located at the working end, is operablely and securely connected to the manhole cover;

[0010] Support wheels are rotatably mounted to the vehicle frame;

[0011] A support assembly is provided for connecting the support wheel to the frame and for moving the support wheel from the rear of the working end to the front of the working end, so that the support wheel can serve as a support point and, together with the wheel, support the handcart with the manhole cover in a balanced state.

[0012] By adopting the above technical solution, during the transportation of manhole covers, the manhole cover is connected and fixed to the manhole cover by the connecting component. The operator lifts the manhole cover by pressing down on the operating end, and then the support component moves the support wheel to the front of the working end. The operator releases the operating end, allowing the support wheel to fall onto the platform. The support wheel and the wheel form a support for the handcart, keeping the handcart in a balanced state. At this time, the operator only needs to push the handcart to move, so that the operator does not need to keep pressing down on the manhole cover during the movement, reducing the operator's burden and improving the convenience of manhole cover transportation.

[0013] Preferably, the support assembly includes a support rod, one end of which is rotatably connected to the support wheel, and the other end of which is rotatably connected to the vehicle frame. The rotation point of the support rod and the vehicle frame is located at the working end.

[0014] By adopting the above technical solution, when transporting manhole covers, the support rod connected to the working end is rotated to allow the support wheel to be flexibly moved to the front of the working end, and together with the wheel, it supports the handcart, achieving balanced support of the handcart. This avoids the operator having to keep pressing down to maintain balance, thereby reducing the operator's burden and improving the convenience of transporting manhole covers.

[0015] Preferably, the frame is provided with a magnetic attraction component, which can attract and fix the support rod located behind the working end.

[0016] By adopting the above technical solution, when the support wheel is located behind the working end, the magnetic component can attract and fix the support rod, ensuring that the support wheel is stable in the non-working state and preventing it from shaking randomly and affecting the normal use of the handcart.

[0017] Preferably, the frame is provided with a limiting block in front of the working end, the limiting block is provided with a limiting groove for the support rod to be inserted, and the limiting block is provided with a limiting member that can prevent the support rod from disengaging from the limiting groove.

[0018] By adopting the above technical solution, after the support wheel is moved to the front of the working end, the support rod is inserted into the limiting groove on the limiting block, and the limiting component restricts the support rod from leaving the limiting groove. This effectively ensures that the support wheel is stably positioned in front of the working end, so that the support wheel and the wheel form a stable support for the handcart. This further ensures the balance of the handcart when moving manhole covers, allowing the operator to push the handcart more smoothly and reducing the risks caused by unstable support during the handling process.

[0019] Preferably, the limiting member includes a locking block, which is slidably inserted into the limiting block and can extend into the limiting groove to limit the support rod.

[0020] By adopting the above technical solution, the locking block slides into the limiting block and extends into the limiting groove, which can effectively prevent the support rod from leaving the limiting groove, ensure that the support wheel is stably in front of the working end, and ensure the stability of the handcart in the supported state.

[0021] Preferably, the limiting member further includes a limiting spring disposed on the limiting block, the locking block has a guide surface at one end that is inserted into the limiting groove, the support rod can drive the locking block to slide out of the limiting groove through the guide surface so that the support rod can be inserted into the limiting groove, and the limiting spring is connected to the locking block so as to drive the locking block to be inserted into the limiting groove.

[0022] By adopting the above technical solution, the operation of inserting the support rod into the limiting groove is smoother and more convenient. At the same time, after the support rod is inserted, the limiting spring can promptly drive the locking block to insert into the limiting groove to restrict it, thus ensuring the reliability of the support wheel's position fixation.

[0023] Preferably, the locking block is provided with a pull rod, which can drive the locking block to slide out of the limiting groove.

[0024] By adopting the above technical solution, when it is necessary to move the support wheel back to the rear of the working end, the pull rod can be pulled to make the locking block slide out of the limiting groove, thereby releasing the restriction on the support rod, facilitating quick adjustment of the support wheel position, making it convenient for subsequent use by the handcart, and further improving the convenience of manhole cover transportation.

[0025] Preferably, the connecting assembly includes a cable and a hook. One end of the cable is fixedly disposed at the working end, and the other end is fixedly connected to the hook. The hook can pass through the disassembly opening on the manhole cover and hook the manhole cover in place.

[0026] By adopting the above technical solution, using a connecting assembly composed of a cable and a hook, one end of the cable is fixed to the working end, and the hook at the other end can pass through the disassembly port on the manhole cover to hook the manhole cover, thus achieving a stable connection between the handcart and the manhole cover.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The connecting component is fixed to the manhole cover. Pressing down the operating end raises the manhole cover. The support component moves the support wheel to the front of the working end. The support wheel and the wheel support the balance of the handcart. There is no need to press down when pushing the handcart, which reduces labor intensity.

[0029] 2. The support wheels and the wheel together support the handcart, ensuring stability and making it easy to push the handcart to move manhole covers;

[0030] 3. When the support wheel is located behind the working end, the magnetic attachment can attract and fix the support rod, ensuring that the support wheel is stable in the non-working state and preventing it from shaking randomly and affecting the normal use of the handcart. Attached Figure Description

[0031] Figure 1 This is a structural schematic diagram of a multi-functional handcart for manhole cover construction according to an embodiment of this application.

[0032] Figure 2 This is a side view of the handcart.

[0033] Figure 3 It is along Figure 2 A cross-sectional view along line AA in the middle.

[0034] Figure 4 yes Figure 2 Enlarged view of section B in the middle.

[0035] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Wheel; 12. Operating end; 13. Working end; 14. Handle; 15. Operating platform; 2. Connecting assembly; 21. Cable; 22. Hook; 3. Support assembly; 31. Support rod; 311. Straight rod section; 312. Diagonal rod section; 4. Support wheel; 5. Rotating body; 6. Magnetic suction component; 7. Limiting block; 71. Limiting groove; 72. Limiting component; 721. Locking block; 722. Limiting spring; 723. Guide surface; 724. Mounting rod; 725. Pull rod; 726. Stop block. Detailed Implementation

[0036] The following will be combined with the appendix Figures 1-4 The technical solutions in the embodiments of this utility model are described in further detail below. The described embodiments are only possible technical implementations of this utility model, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of this utility model without creative effort are also within the protection scope of this utility model.

[0037] This application mainly adopts a frame 1 in conjunction with a connecting and supporting component 3 to transport manhole covers, which achieves the effect of reducing the burden on operators and improving the convenience of manhole cover transportation. The following is a further detailed description of this application.

[0038] This application discloses a multi-functional handcart for manhole cover construction.

[0039] Reference Figure 1A multi-functional handcart for manhole cover construction includes a frame 1, wheels 11, a connecting component 2, a support component 3, and support wheels 4. There are two wheels 11, which are coaxially rotatably mounted at the bottom of the frame 1 and can roll on the platform to realize the forward movement of the frame 1. The two ends of the frame 1 along the direction of movement of the wheels 11 are an operating end 12 and a working end 13, respectively. The two wheels 11 are located between the operating end 12 and the working end 13. The operating end 12 is fixedly equipped with two handles 14 to facilitate the operator's control of the handcart. The working end 13 forms a plate-shaped operating platform 15. The connecting component 2 is fixedly installed on the operating platform 15 and is detachably fixedly connected to the manhole cover. The support component 3 is rotatably connected to the operating platform 15. The support wheel 4 is rotatably installed on the support component 3. In this embodiment, the direction of movement of the handcart towards the working end 13 is taken as the forward direction. Therefore, the working end 13 is located in front of the operating end 12. Initially, the support wheel 4 is located behind the working end 13, so that the two wheels 11 form a single fulcrum. When the operator lifts the manhole cover, the operator drives the support component 3 to rotate, so that the support wheel 4 moves to the front of the working end 13, so that the handcart forms a three-wheel support structure, and the handcart is balanced under the action of the two wheels 11 and one support wheel 4.

[0040] During the transportation of the manhole cover, it is connected and fixed to the manhole cover by the connecting component 2. The operator lifts the manhole cover by pressing down the handle 14 at the operating end 12, and then moves the support wheel 4 to the front of the working end 13 by the support component 3. The operator releases the operating end 12, so that the support wheel 4 falls onto the platform. The support wheel 4 and the wheel 11 form a support for the handcart, so that the handcart is in a balanced state. At this time, the operator only needs to push the handcart to move. During the movement of the manhole cover, the operator does not need to keep pressing down, which reduces the burden on the operator and improves the convenience of manhole cover transportation.

[0041] Reference Figure 1 In this embodiment, the connecting component 2 includes a cable 21 and a hook 22. The top of the cable 21 is fixedly connected to the operating platform 15 through a U-shaped frame, and the bottom is divided into two to form a V-shaped structure. In this embodiment, there are two hooks 22. The two hooks 22 correspond one-to-one with the two ends of the forked cable 21 and are fixedly connected. There are two disassembly openings on the manhole cover to facilitate subsequent inspection and observation of the manhole. The two hooks 22 can pass through the two disassembly openings on the manhole cover to hook the manhole cover. Using the connecting component 2 composed of the cable 21 and the hook 22, one end of the cable 21 is fixed to the working end 13, and the hook 22 at the other end can pass through the disassembly opening on the manhole cover to hook the manhole cover, realizing the convenience of connecting and disassembling the handcart and the manhole cover.

[0042] Reference Figure 1In this embodiment, the support component 3 includes a support rod 31, which includes a straight rod section 311 and an inclined rod section 312. The inclined rod section 312 is made of steel that can be attracted by a magnet. The straight rod section 311 is fixedly mounted on the rotating body 5 and is arranged radially along the rotating body 5. The angle between the inclined rod section 312 and the straight rod section 311 is an obtuse angle. The angle between the inclined rod section 312 and the straight rod section 311 can be set according to the size of the manhole cover to ensure that the support rod 31 does not interfere with the manhole cover when it rotates. The support wheel 4 is rotatably mounted at the bottom of the inclined rod section 312, and when the support wheel 4 is located behind the working end 13, it remains in an airborne state.

[0043] Reference Figure 2 , Figure 3 The operating platform 15 is equipped with a rotating body 5, which is rotatably connected to the operating platform 15 through a tapered roller bearing. The rotating body 5 can rotate along the plane of the operating platform 15. The rotating body 5 has a through hole for the cable 21 to pass through.

[0044] Reference Figure 1 A magnetic attractor 6 is fixed on the frame 1. In this embodiment, the magnetic attractor 6 is a permanent magnet. Initially, the magnetic attractor 6 attracts and fixes the inclined rod section 312, so that the support wheel 4 is located behind the working end 13, ensuring that the support wheel 4 is stable in the non-working state and preventing it from shaking randomly and affecting the normal use of the handcart.

[0045] Reference Figure 2 , Figure 4 A limiting block 7 is fixedly provided below the operating platform 15. The limiting block 7 is located in front of the rotating body 5. A limiting groove 71 is provided on the limiting block 7. The limiting groove 71 is arranged along the radial direction of the rotating body 5, and one side of the limiting groove 71 is open. The straight rod section 311 can rotate into the limiting groove 71 through the opening, so that the support wheel 4 is in a stable support state for the handcart. A limiting member 72 is provided on the limiting block 7.

[0046] Reference Figure 2 , Figure 4The limiting member 72 includes a locking block 721 and a limiting spring 722. The locking block 721 is located at the bottom of the limiting block 7 and is arranged in a direction perpendicular to the limiting groove 71. The locking block 721 is slidably inserted into the limiting block 7, and the end of the locking block 721 can be inserted into the limiting groove 71. The end of the locking block 721 inserted into the limiting groove 71 is provided with a guide surface 723. The guide surface 723 is inclined from bottom to top toward the inside of the limiting groove 71, so that the straight rod section 311 is inserted into the limiting groove 71. By pressing the guide surface 723, the end of the locking block 721 is disengaged from the limiting groove 71. When the locking block 721 is inserted into the limiting groove 71, a space for the straight rod section 311 is formed between the locking block 721 and the side wall of the limiting groove 71 facing the opening. A mounting rod 724, which is L-shaped, is fixedly installed on the bottom wall of the limiting block 7. A pull rod 725, which is slidably mounted on the mounting rod 724, is fixedly installed at the bottom of the limiting block 7. A limiting spring 722 is sleeved on the pull rod 725. One end of the limiting spring 722 abuts against the mounting rod 724, and the other end abuts against the locking block 721. The limiting spring 722 applies a spring force to the locking block 721 to insert into the limiting groove 71. When the straight rod section 311 pushes the locking block 721 to slide through the guide surface 723, the limiting spring 722 retracts. A stop block 726 is fixedly installed on the pull rod 725. The stop block 726 is located on the side of the mounting rod 724 away from the limiting spring 722. When the stop block 726 abuts against the mounting rod 724, part of the guide surface 723 of the locking block 721 inserts into the limiting groove 71.

[0047] When the support wheel 4 rotates to the forward position, the straight rod section 311 is inserted into the limiting groove 71 through the opening of the limiting groove 71. During the insertion process, the straight rod section 311 presses against the guide surface 723, driving the locking block 721 to disengage from the limiting groove 71, thus opening the limiting groove 71. When the straight rod section 311 is fully inserted into the limiting groove 71, the limiting spring 722 pushes the locking block 721 into the limiting groove 71, preventing the straight rod section 311 from disengaging from the limiting groove 71, thus opening the limiting groove 71. When the straight rod section 311 is fully inserted into the limiting groove 71, the locking block 721 is pushed into the limiting groove 71 by the limiting spring 722, improving the stability of the straight rod section 311 within the limiting groove 71, ensuring the balance of the handcart when transporting the manhole cover, allowing the operator to push the handcart more smoothly, and reducing the risk caused by unstable support during transportation. The limiting groove 71 is automatically opened by pressing the locking block 721 with the straight rod section 311, and then the locking block 721 is pushed into the limiting groove 71 by the spring, which reduces the number of manual operation steps and improves the convenience of the locking block 721 in restricting the straight rod section 311 in the limiting groove 71.

[0048] The implementation principle of a multi-functional handcart for manhole cover construction in this embodiment is as follows: During the transportation of the manhole cover, the manhole cover is hooked by the hook 22. The operator lifts the manhole cover by pressing down the handle 14 at the operating end 12, and then moves the support wheel 4 to the front of the working end 13 by rotating the support rod 31. The locking block 721 fixes the support rod 31 in the limiting groove 71, making the support wheel 4 more stable. The operator releases the operating end 12, allowing the support wheel 4 to fall onto the platform. The support wheel 4 and the wheel 11 form a support for the handcart, making the handcart balanced. At this time, the operator only needs to push the handcart to move, so that the operator does not need to keep pressing down during the movement of the manhole cover, reducing the burden on the operator and improving the convenience of manhole cover transportation.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-functional handcart for manhole cover construction, characterized in that: include: The frame (1) serves as the main structure of the handcart, with the two ends of the frame (1) forming an operating end (12) and a working end (13); The wheel (11) is rotatably mounted on the frame (1) and located between the operating end (12) and the working end (13), and can serve as a fulcrum so that the working end (13) can be lifted by pressing down the operating end (12); The connecting component (2) is provided at the working end (13) and is operablely fixedly connected to the manhole cover; Support wheel (4) is rotatably mounted with the frame (1); The support assembly (3) is used to connect the support wheel (4) to the frame (1) and can move the support wheel (4) from the rear of the working end (13) to the front of the working end (13), so that the support wheel (4) can serve as a support point and support the handcart with the manhole cover in a balanced state with the wheel (11).

2. The multi-functional handcart for manhole cover construction according to claim 1, characterized in that: The support assembly (3) includes a support rod (31), one end of which is rotatably connected to the support wheel (4), and the other end is rotatably connected to the frame (1). The rotation point of the support rod (31) and the frame (1) is located at the working end (13).

3. The multi-functional handcart for manhole cover construction according to claim 2, characterized in that: The frame (1) is provided with a magnetic suction component (6), which can attract and fix the support rod (31) located behind the working end (13).

4. The multi-functional handcart for manhole cover construction according to claim 2, characterized in that: The frame (1) has a limiting block (7) in front of the working end (13). The limiting block (7) has a limiting groove (71) for the support rod (31) to be inserted. The limiting block (7) has a limiting member (72) that can restrict the support rod (31) from leaving the limiting groove (71).

5. The multi-functional handcart for manhole cover construction according to claim 4, characterized in that: The limiting member (72) includes a locking block (721), which is slidably inserted into the limiting block (7) and can extend into the limiting groove (71) to limit the support rod (31).

6. The multi-functional handcart for manhole cover construction according to claim 5, characterized in that: The limiting member (72) further includes a limiting spring (722) disposed on the limiting block (7). The locking block (721) has a guide surface (723) at one end that is inserted into the limiting groove (71). The support rod (31) can drive the locking block (721) to slide out of the limiting groove (71) through the guide surface (723), so that the support rod (31) can be inserted into the limiting groove (71). The limiting spring (722) is connected to the locking block (721) so as to drive the locking block (721) to be inserted into the limiting groove (71).

7. The multi-functional handcart for manhole cover construction according to claim 6, characterized in that: The locking block (721) is provided with a pull rod (725), which can drive the locking block (721) to slide out of the limiting groove (71).

8. The multi-functional handcart for manhole cover construction according to claim 1, characterized in that: The connecting component (2) includes a cable (21) and a hook (22). One end of the cable (21) is fixedly disposed at the working end (13), and the other end is fixedly connected to the hook (22). The hook (22) can pass through the disassembly port on the manhole cover and hook the manhole cover.

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