Lifting device for porous rectangular well lid

Abstract

The utility model discloses a lifting device for a porous rectangular well lid, and belongs to the field of mechanical engineering, the lifting device comprises universal wheels and a trolley base, the trolley base can be dragged to move in cooperation with a cleaning vehicle, a stand column is arranged on the trolley base, a rotating arm and the stand column can rotate relatively, and the motor end of a turn-back type electric cylinder is connected with a rotating arm frame; the shaft end is connected with the direct-connection type electric cylinder, the turn-back type electric cylinder is matched with the direct-connection type electric cylinder and the rotating arm so that the mechanical gripper can freely move within a certain range space, the connecting disc and the rotatable hinge frame can rotate relatively, and the rotatable hinge frame and the rotating shaft driven by the servo motor can rotate relatively. The mechanical gripper connecting plate is connected with the mechanical gripper and matched with the variable-pitch armrest, the whole device can grab and move the well lid within a certain space range, the mechanical gripper turns over by 90 degrees to grab the cleaning water pipe, the cleaning water pipe can be matched with a cleaning vehicle to clean the interior of a well, and integrated operation of grabbing and cleaning the well lid is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical engineering, and specifically relates to a manhole cover lifting device, in particular to a lifting device for a multi-hole rectangular manhole cover. Background Art

[0002] The square hollow manhole cover commonly seen on the side of urban roads, also known as rainwater grates, is a facility used for rainwater collection and drainage. It is usually located at the entrance of the rainwater collection equipment and can effectively prevent debris and pollutants from entering the collection system. At the same time, the rainwater grate is also part of the drainage system, which can prevent large particles of debris and garbage from entering the drainage pipes, keep drainage unobstructed, and reduce the risk of blockage.

[0003] When there is too much debris accumulation and it needs to be cleaned and unblocked, or when the drainage project is inspected and repaired, the manhole cover needs to be removed for cleaning. At present, most governments and companies still use manual removal, which is time-consuming and labor-intensive. And after the manhole cover is removed, inspection and pumping work require additional construction steps and manpower. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and disclose a lifting device for a porous rectangular manhole cover, comprising:

[0005] The universal wheels and the trolley base can be moved by hand pushing or by being towed by a cleaning vehicle. A column is arranged on the trolley base, and the swivel arm and the column can rotate relative to each other. The motor end of the reciprocating electric cylinder is connected to the swivel arm frame, and the shaft end is connected to the direct-connected electric cylinder. The reciprocating electric cylinder cooperates with the direct-connected electric cylinder and the swivel arm to realize the free movement of the mechanical gripper within a certain range of space. The shaft of the direct-connected electric cylinder is connected to the connecting disk, and the rotatable articulated frame matched with the connecting disk is connected to the mechanical gripper connecting plate through the rotating shaft. The connecting disk and the rotatable articulated frame can rotate relative to each other, and the rotatable articulated frame and the rotating shaft driven by the servo motor can rotate relative to each other. The mechanical gripper connecting plate is connected to the mechanical gripper and cooperates with the variable-pitch handrail.

[0006] The rotating arm is provided with a roller, and the roller and the column can roll relative to each other.

[0007] The reciprocating electric cylinder body and the guide shaft connecting plate are respectively provided with a guide hole and a guide shaft to assist in guiding the reciprocating electric cylinder shaft.

[0008] A cylindrical boss, an armrest limiting convex plate and a rotating shaft support are provided on the mechanical gripper connecting plate. The cylindrical boss cooperates with the variable-pitch armrest. The variable-pitch armrest and the cylindrical boss can rotate relative to each other. The armrest limiting convex plate can limit the relative position of the variable-pitch armrest. The rotating shaft is connected to the rotating shaft support.

[0009] The mechanical gripper includes a gripper main fixed seat, a fixed gripper, a gripper slide rail structure and a screw structure are connected below the gripper main fixed seat, a movable gripper is connected below the gripper slide rail structure, a gripper servo motor is arranged above the gripper main fixed seat, and the gripper servo motor drives a transmission structure in cooperation with the screw structure to realize the tightening and releasing of the movable gripper.

[0010] The variable-pitch handrail comprises a handrail support, a handrail handle and a pin hole, and the length of the variable-pitch handrail can be adjusted through the pin hole according to needs.

[0011] In the improved solution, a roller is provided on the rotating arm, and the roller and the column can roll relative to each other.

[0012] In the improved solution, guide holes and guide shafts are respectively provided on the cylinder body of the reciprocating electric cylinder and the guide shaft connecting plate to assist in guiding the reciprocating electric cylinder shaft.

[0013] In the improved solution, a cylindrical boss, an armrest limit boss and a rotating shaft support are provided on the mechanical gripper connecting plate, and the rotation servo motor can drive the rotating shaft to realize a 90-degree flip of the mechanical gripper.

[0014] The technical effects achieved by the present invention are as follows:

[0015] 1. The porous rectangular manhole cover lifting device of the present invention can be towed by a cleaning vehicle to make the lifting of the manhole cover more convenient; the various components of the lifting device of the present invention are mechanically connected, with a simple structure and low processing cost.

[0016] 2. The mechanical gripper of the porous rectangular manhole cover lifting device of the present invention can rotate freely within a certain range in the horizontal plane and can achieve a certain lifting distance in the vertical plane. The mutual cooperation can realize the grabbing and transfer of the manhole cover within a certain space.

[0017] 3. The porous rectangular manhole cover lifting device described in the present invention has a motor and a rotating shaft disposed at the connecting plate of the mechanical gripper. The motor drives the rotating shaft to realize a 90-degree flip of the mechanical gripper, so that the mechanical gripper can not only grab the porous rectangular manhole cover, but also grab the high-pressure water pipe used in conjunction with the cleaning vehicle to perform cleaning operations in the well. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the rotating arm;

[0020] Figure 3 It is a structural diagram of the return electric cylinder;

[0021] Figure 4is a schematic diagram of the connection between the disc and the rotatable articulated frame;

[0022] Figure 5 It is a structural schematic diagram of the mechanical gripper connecting plate;

[0023] Figure 6 It is a structural schematic diagram of a variable pitch handrail;

[0024] Figure 7 It is a schematic diagram of the structure of the mechanical gripper;

[0025] Figure 8 It is a schematic diagram of the working state of the utility model;

[0026] Markings in the figure: 1-universal wheel, 2-trolley base, 3-column, 4-arm, 4-1-roller, 4-2-arm frame, 5-return electric cylinder, 5-1-return motor, 5-2-arm connecting plate, 5-3-return electric cylinder body, 5-4-return electric cylinder shaft, 5-5-guide shaft connecting plate, 6-direct-connected electric cylinder, 7-direct-connected electric cylinder shaft, 8-connecting disc, 9-positioning servo motor, 10-mechanical gripper connecting plate, 10-1-connecting plate main frame, 10 -2-cylindrical boss, 10-3-armrest limiting convex plate, 10-4-rotating shaft support, 11-rotatable articulated frame, 12-mechanical gripper, 12-1-fixed gripper, 12-2-gripper main fixing seat, 12-3-gripper servo motor, 12-4-belt transmission structure, 12-5-gripper slide rail structure, 12-6-screw structure, 12-7-movable gripper, 13-variable pitch armrest, 13-1-armrest support, 13-2-armrest handle, 13-3-pin hole, 14-rotating shaft. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1As shown, as a specific embodiment of the utility model, a complete structural diagram of a manhole cover lifting device is disclosed, which can be used for the transfer and lifting of porous rectangular manhole covers in cities and community streets, including: a universal wheel 1, a trolley base 2, a column 3, a rotating arm 4, a roller 4-1, a rotating arm frame 4-2, a reciprocating electric cylinder 5, a reciprocating motor 5-1, a rotating arm connecting plate 5-2, a reciprocating electric cylinder body 5-3, a reciprocating electric cylinder shaft 5-4, a guide shaft connecting plate 5-5, a direct-connected electric cylinder 6, a direct-connected electric cylinder shaft 7, a connecting disc 8, indexing servo motor 9, mechanical gripper connecting plate 10, connecting plate main frame 10-1, cylindrical boss 10-2, armrest limit convex plate 10-3, shaft support 10-4, rotatable articulated frame 11, mechanical gripper 12, fixed claw 12-1, gripper main fixed seat 12-2, gripper servo motor 12-3, belt transmission structure 12-4, claw slide rail structure 12-5, screw structure 12-6, movable claw 12-7, variable pitch armrest 13, armrest support 13-1, armrest handle 13-2, pin hole 13-3, shaft 14.

[0030] like Figure 1 As shown, the universal wheel 1 serves as the moving part of the device and the load-bearing part of the entire lifting equipment. The base 2 of the trolley is used to connect the universal wheel 1 and the column 3, thereby improving the stability and strength of the device. A hook for dragging the trolley is installed on the base 2. In actual work, it can be towed to any work site by an engineering vehicle. Rectangular holes are opened on the base 2 to reduce consumables and reduce the total weight of the entire device. Bolt holes are also opened on the base 2 for connecting with the column.

[0031] The column 3 is mainly used to support the reciprocating electric cylinder 5 and to give the mechanical gripper 12 an initial height position. The bottom of the column 3 is connected to the base 2 by bolts. The base 2 is designed to be circular, mainly to increase the contact area and reduce the stress concentration of the base 2. Ribs are provided at the junction of the circular base and the column 3 to reduce stress concentration.

[0032] like Figure 2 As shown, Figure 2 The middle roller 4-1 component can roll along the outer circle on the column, so that the rotating arm 4 can rotate. The 4-2 rotating arm frame structure cooperates with the roller to rotate, mainly playing the role of bearing and fixing the arm frame. The threaded hole on the arm frame is used to connect with the reciprocating electric cylinder 5.

[0033] like Figure 3 As shown, the reciprocating electric cylinder 5 is mainly composed of a reciprocating motor 5-1, a swing arm connecting plate 5-2, a reciprocating electric cylinder body 5-3, a reciprocating electric cylinder shaft 5-4, and a guide shaft connecting plate 5-5. Driven by the motor, the direct-connected electric cylinder can be driven to telescopically move.

[0034] The direct-connected electric cylinder 6 has a simple and compact structure, mainly consisting of a motor, a cylinder body and a shaft. It can lift or lower the mechanical gripper 12 components. The square structure at the upper end is the motor, and the connecting disc 8 at the bottom is connected by bolts. The design of the disc makes the structure evenly stressed.

[0035] like Figure 4 As shown, Figure 4 It is a robot gripping connecting plate 10, which is mainly composed of four parts: a connecting plate main frame 10-1, a connecting plate boss 10-2, an armrest limit boss 10-3, and a rotating shaft support 10-4. The connecting plate main frame 10-1 is relatively small in overall size and has a relatively compact structure. The connecting plate boss 10-2 is connected to the retractable armrest, and the rotating shaft support 10-4 is used to fix the rotating shaft 14 driven by the servo motor 9.

[0036] like Figure 5 As shown, Figure 5 The middle rotatable articulated frame 11 is T-shaped, and the top of the articulated frame and the connecting disc 8 cooperate with each other. Under the premise of ensuring the relative position between the two, the articulated frame can rotate in the vertical direction. The bottom of the articulated frame is connected to a cylindrical positionable shaft 14, which can rotate the shaft 14 in the horizontal direction relative to the articulated frame.

[0037] like Figure 6 As shown, Figure 6 It is a variable-pitch handrail 13, which includes three parts: a handrail support 13-1, a handrail handle 13-2, and a pin hole 13-3. The handrail support 13-1 is H-shaped, which can improve the stability of the handrail and make the operation easier. The round hole design at the end point is mainly used to cooperate with the connecting plate boss 10-2 to achieve rotation, and rotate under the restriction of the handrail limit convex plate 10-3. The handrail handle 13-2 and the handrail support 13-1 are fixed and retracted through the cooperation of the pin hole 13-3 and the pin shaft. The handrail handle is H-shaped to balance the force and has a bend at the rear end to allow construction workers to operate.

[0038] like Figure 7 As shown, Figure 7The figure shows the complete structure of the mechanical gripper 12, which is divided into seven parts: a fixed gripper 12-1, a gripper main fixed seat 12-2, a gripper servo motor 12-3, a belt transmission structure 12-4, a gripper slide rail structure 12-5, a ball screw structure 12-6, and a movable gripper 12-7. The fixed gripper 12-1 is irregular in shape, with multiple round holes on the side to reduce weight, and is fixed on the base 2 and can move horizontally on the gripper main fixed seat. The front end of the gripper is curved so that the manhole cover can be stuck in the front. The main fixed seat 12-2 of the gripper is rectangular, and the gripper servo motor 12-3 and the belt drive structure 12-4 are fixed on the top. The movable gripper 12-7 can move horizontally on the gripper slide structure 12-5 through the rotation of the ball screw 12-6 under the drive of the belt drive. The belt drive structure 12-4 has large and small pulleys, and the movable gripper 12-7 moves by controlling the drive of the servo motor.

[0039] The working method of this embodiment is as follows: the mechanical gripper 12 is installed on the mechanical gripper connecting plate 10, and the gripper servo motor 12-3 drives the movable claw 12-7 to perform the gripping work. The staff operates the variable pitch handrail 13 to make the mechanical gripper 10 in the working position. Under the operation of the staff, the device can be rotated 270° around the direct-connected electric cylinder by the rotatable articulated frame 11, so that the staff can work in any suitable position. In addition, the direct-connected electric cylinder shaft 7 can be extended from the direct-connected electric cylinder body 6, and the reciprocating electric cylinder 5 can also be driven by the reciprocating motor 5-1 to make the reciprocating electric cylinder shaft 54 ​​and the guide shaft connecting plate 5-5 extend from the reciprocating electric cylinder body to adjust the relative position, and the rotating arm 4 can also be driven by the roller 4-1 through the rotating arm frame 4-2 to make the entire device rotate around the column 3, so that the mechanism can easily reach the predetermined working position. After reaching the predetermined position, the staff operates the switch on the retractable handrail to realize the remote control of the rotation of the indexing servo motor 9, and the mechanical gripper 12 retracts. After clamping the manhole cover, the cylinder shaft 7 of the direct-connected electric cylinder retracts into the rigid body 6 of the direct-connected electric cylinder, driving the mechanical gripper to rise to realize the manhole cover lifting process, and then the staff operates to place the manhole cover on the trolley base 2, completing the entire manhole cover clamping process, which is convenient for cleaning.

Claims

1. A lifting device for a porous rectangular manhole cover, characterized in that: The invention comprises: a universal wheel (1) and a trolley base (2), which can be moved by being towed by a cleaning vehicle; a column (3) is arranged on the trolley base (2); a rotating arm (4) and the column (3) can rotate relative to each other; a motor end of a reciprocating electric cylinder (5) is connected to a rotating arm frame (4-2); an axis end is connected to a direct-connected electric cylinder (6); the reciprocating electric cylinder (5) cooperates with the direct-connected electric cylinder (6) and the rotating arm (4) to realize free movement of a mechanical gripper (12) within a certain range of space; The electric cylinder shaft (7) is connected to the connecting disc (8), and the rotatable articulated frame (11) matched with the connecting disc (8) is connected to the mechanical gripper connecting plate (10) through the rotating shaft (14). The connecting disc (8) and the rotatable articulated frame (11) can rotate relative to each other, and the rotatable articulated frame (11) and the rotating shaft (14) driven by the indexing servo motor (9) can rotate relative to each other. The mechanical gripper connecting plate (10) is connected to the mechanical gripper (12) and matched with the variable-pitch handrail (13); The mechanical gripper connecting plate (10) is provided with a cylindrical boss (10-2), a handrail limiting boss plate (10-3) and a rotating shaft support (10-4); the cylindrical boss (10-2) cooperates with the variable-pitch handrail (13); the variable-pitch handrail (13) and the cylindrical boss (10-2) can rotate relative to each other; the handrail limiting boss plate (10-3) can limit the relative position of the variable-pitch handrail (13); and the rotating shaft (14) is connected to the rotating shaft support (10-4); The mechanical gripper (12) comprises a gripper main fixed seat (12-2), a fixed gripper (12-1) and a gripper slide rail structure (12-5) and a lead screw structure (12-6) are connected below the gripper main fixed seat (12-2), a movable gripper (12-7) is connected below the gripper slide rail structure (12-5), a gripper servo motor (12-3) is arranged above the gripper main fixed seat (12-2), and the gripper servo motor (12-3) drives a belt transmission structure (12-4) to cooperate with the lead screw structure (12-6) to realize the tightening and loosening of the movable gripper (12-7); The variable-length handrail (13) comprises a handrail support (13-1), a handrail handle (13-2) and a pin hole (13-3), and the length of the variable-length handrail (13) can be adjusted through the pin hole (13-3) as required.

2. A lifting device for a porous rectangular manhole cover as claimed in claim 1, characterized in that: A roller (4-1) is arranged on the rotating arm (4), and the roller (4-1) and the column (3) can roll relative to each other.

3. A lifting device for a porous rectangular manhole cover as claimed in claim 1, characterized in that: A guide hole and a guide shaft are respectively provided on the reciprocating electric cylinder body (5-3) and the guide shaft connecting plate (5-5) to assist in guiding the reciprocating electric cylinder shaft (5-4).

4. A lifting device for a porous rectangular manhole cover as claimed in claim 1, characterized in that: The indexing servo motor (9) can drive the rotating shaft (14) to achieve a 90-degree flip of the mechanical gripper (12).

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