A clamp for quickly lifting manhole cover

Abstract

The utility model discloses a clamp for quickly hoisting a manhole cover, wherein a longitudinal slideway penetrating the right end face of the hanging beam is arranged in the right half of the hanging beam, a guide groove connected to the longitudinal slideway is arranged on the top face of the hanging beam, a telescopic arm is slidably mounted in the longitudinal slideway, a right arc-shaped clamping block device is fixedly connected to the outer end of the telescopic arm, a connecting rod is hinged to the inner end of the telescopic arm, a connecting frame is hinged to the inner end of the longitudinal slideway located in the guide groove through symmetrical hinge holes on both side walls, the other end of the connecting frame is hinged to the outer end of the connecting rod, the connecting frame and the connecting rod are both matched with the guide groove, a lifting ring is arranged at the outer end of the connecting frame, and a left arc-shaped clamping block device is arranged at the left end of the hanging beam. The utility model has a reasonable structure, can solve the problem of time-consuming and labor-intensive when bundling and connecting the manhole cover by rope, greatly reduces the difficulty of operation, is convenient for realizing fast clamping of the manhole cover, improves the efficiency of transportation and installation of the manhole cover, and improves work efficiency.

Description

Technical Field

[0001] The utility model belongs to a clamp for hoisting a manhole cover in building construction, in particular to a clamp for quickly hoisting a manhole cover. Background Art

[0002] Manhole covers are used to cover roads or deep wells at home to prevent people or objects from falling. According to the material, they can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. They are generally round and can be used in green belts, sidewalks, motor vehicle lanes, docks, alleys, etc. When transporting or installing manhole covers, since the manhole covers have a certain weight, it is necessary to operate them through lifting equipment. At the same time, in order to ensure the safety during lifting, it is very important to clamp and fix the manhole covers, especially when bundling and connecting the manhole covers with ropes, which is time-consuming and labor-intensive, greatly increases the difficulty of operation, and thus reduces the efficiency of transportation and installation. At the same time, considering the importance of quick clamping and connection of manhole covers, we proposed a quick-clamping manhole cover clamp that is convenient for quick clamping of manhole covers to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a clamp for quickly lifting manhole covers, which has a reasonable structure and can solve the problem of time-consuming and labor-intensive operation when bundling and connecting manhole covers with ropes, greatly reduce the difficulty of operation, facilitate the rapid clamping of manhole covers, improve the efficiency of manhole cover transportation and installation, and improve work efficiency.

[0004] The purpose of the utility model is achieved in this way: a clamp for quickly lifting a manhole cover, comprising a manhole cover, a longitudinal slide penetrating the right end face of the hanging beam is arranged in the right half of the hanging beam, a guide groove connected to the longitudinal slide is arranged on the top surface of the hanging beam, a telescopic arm is slidably installed in the longitudinal slide, a right arc-shaped clamping block device is fixed to the outer end of the telescopic arm, a connecting rod is hinged to the inner end of the telescopic arm, a connecting frame is hinged to the two side walls of the inner end of the longitudinal slide located in the guide groove through symmetrical hinge holes, the other end of the connecting frame is hinged to the outer end of the connecting rod, the connecting frame and the connecting rod are matched with the guide groove, a lifting ring is arranged at the outer end of the connecting frame, and a left arc-shaped clamping block device symmetrical to the right arc-shaped clamping block device is arranged at the left end of the hanging beam, and the left arc-shaped clamping block device and the right arc-shaped clamping block device are matched with the outer circular end edge of the clamped manhole cover.

[0005] The utility model includes a hanging beam, and arc-shaped clamping block devices are arranged at the bottom of both ends of the hanging beam. The arc-shaped clamping block device on one side is connected to the end of the hanging beam through a connecting sleeve, and the arc-shaped clamping block device on the other side is movably connected to the end of the hanging beam through a hoisting sliding structure. The arrangement of the arc-shaped clamping block device facilitates contact with the edges of both sides of the manhole cover, thereby achieving a clamping effect. The lifting device is connected to the hoisting sliding structure, and the movement of the hoisting sliding structure drives the arc-shaped clamping block device to move, thereby achieving a clamping effect on the edge of the manhole cover. The structure is reasonable, and it is convenient to quickly clamp the manhole cover, thereby improving the efficiency of manhole cover transportation and installation.

[0006] The lifting sliding structure includes a telescopic arm, a connecting frame arranged at one end of the telescopic arm, and a linkage rod arranged between the connecting frame and the telescopic arm, one end of the linkage rod is rotatably connected to the end of the telescopic arm, and both sides of the other end are slidably and rotatably connected to the connecting frame. Specifically, through the arrangement of the telescopic arm and the linkage rod, it is easy to realize that the telescopic arm is driven to move by the linkage rod through the connecting frame and the connection, thereby driving the arc-shaped clamping block device to clamp the edge of the manhole cover.

[0007] A guide groove matching the hanging beam is provided at the top of the hanging beam, and a longitudinal slideway communicating with the inside of the guide groove is provided at one end of the hanging beam. Specifically, the setting of the guide groove facilitates the movement and position limiting of the telescopic arm at the top of the hanging beam.

[0008] A moving groove is provided on one side of the connecting frame, and round rods connected to the inside of the moving groove are connected to both sides of the connecting rod. Specifically, the setting of the moving groove facilitates the moving and rotating of the connecting rod on the side wall of the connecting frame.

[0009] A rotation groove is provided at one end of the telescopic arm, and the interior of the rotation groove is rotationally connected to the end of the connecting rod, so as to facilitate the rotation connection between the telescopic arm and the connecting rod.

[0010] A lifting ring is arranged on one side of the top of the linkage rod, and both sides of the bottom of the lifting ring are rotatably connected with lifting rings connected to the top of the connecting frame. Specifically, the setting of the lifting ring facilitates the lifting with the lifting equipment and improves the convenience of connection.

[0011] By connecting the lifting equipment with the lifting sliding structure, the movement of the lifting sliding structure drives the arc clamping block device to move, so that the edge of the manhole cover can be clamped. The structure is reasonable, which is convenient for quickly clamping the manhole cover, and improves the efficiency of manhole cover transportation and installation. Through the setting of the telescopic arm and the connecting rod, it is convenient to drive the telescopic arm to move through the connection between the connecting rod and the connecting frame, thereby driving the arc clamping block device to clamp the edge of the manhole cover. Through the setting of the guide groove, it is convenient to realize the movement and limitation of the telescopic arm on the top of the hanging beam. Through the setting of the moving groove, it is convenient to realize the movement and rotation of the connecting rod on the side wall of the connecting frame, so as to realize the rotation connection between the telescopic arm and the connecting rod. Through the setting of the lifting ring, it is convenient to realize the coordinated lifting with the lifting equipment, thereby improving the convenience of connection. Beneficial Effects

[0012] The arrangement of the arc-shaped clamping block facilitates contact with the edges on both sides of the manhole cover, thereby achieving a clamping effect. The arc-shaped clamping block is connected to the lifting sliding structure through the lifting equipment, and the movement of the lifting sliding structure drives the movement of the arc-shaped clamping block, thereby achieving a clamping effect on the edge of the manhole cover. The reasonable structure facilitates rapid clamping of the manhole cover, thereby improving the efficiency of manhole cover transportation and installation. By connecting the lifting equipment with the lifting sliding structure, the movement of the lifting sliding structure drives the arc-shaped clamping block to move, so that the edge of the manhole cover can be clamped. The structure is reasonable, which is convenient for quickly clamping the manhole cover, and improves the efficiency of manhole cover transportation and installation. Through the setting of the telescopic arm and the connecting rod, it is convenient to drive the telescopic arm to move through the connecting rod through the connecting frame, thereby driving the arc-shaped clamping block to clamp the edge of the manhole cover. Through the setting of the guide groove, it is convenient to realize the movement and limitation of the telescopic arm on the top of the hanging beam. Through the setting of the moving groove, it is convenient to realize the movement and rotation of the connecting rod on the side wall of the connecting frame, so as to realize the rotation connection between the telescopic arm and the connecting rod. Through the setting of the lifting ring, it is convenient to realize the coordinated lifting with the lifting equipment, thereby improving the convenience of connection.

[0013] The utility model facilitates the rapid clamping of the manhole cover, improves the efficiency of the manhole cover transportation and installation, and solves the problem in the prior art that the manhole cover is time-consuming and labor-intensive to be tied and connected by ropes, which greatly increases the difficulty of operation and thus reduces the efficiency of transportation and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings. Figure 1 It is a three-dimensional structural schematic diagram of the utility model. Figure 2 This is a schematic diagram of the three-dimensional structure of the hanging beam. Figure 3 It is a three-dimensional structural schematic diagram of the telescopic arm assembly. Figure 4 It is a schematic diagram of the structure of the utility model in hoisting state. DETAILED DESCRIPTION

[0015] A clamp for quickly lifting a manhole cover, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it includes a manhole cover, a longitudinal slide 9 penetrating the right end face of the hanging beam is arranged in the right half of the hanging beam 1, a guide groove 2 connected to the longitudinal slide 9 is arranged on the top face of the hanging beam 1, a telescopic arm 3 is slidably installed in the longitudinal slide 9, a right arc-shaped clamping block device 4 is fixed to the outer end of the telescopic arm 3, a connecting rod 5 is hinged to the inner end of the telescopic arm 3, a connecting frame 6 is hinged to the two side walls of the inner end of the longitudinal slide 9 located in the guide groove 2 through symmetrical hinge holes 10, the other end of the connecting frame 6 is hinged to the outer end of the connecting rod 5, the connecting frame 6 and the connecting rod 5 are both matched with the guide groove 2, a lifting ring 7 is arranged at the outer end of the connecting frame 6, and a left arc-shaped clamping block device 8 symmetrical to the right arc-shaped clamping block device 4 is arranged at the left end of the hanging beam 1, the left arc-shaped clamping block device 8 and the right arc-shaped clamping block device 4 are matched with the outer circular end edge of the clamped manhole cover. The structure of the left and right arc-shaped clamping block devices 8 and the right arc-shaped clamping block device 4 is that the connecting seat 11 is connected to the horizontally arranged arc-shaped clamping block 13 through the arc-shaped connecting arm 12. The sum of the lengths of the connecting frame 6 and the connecting rod 5 is less than the length of the guide groove 2. The connecting frame 6 is a U-shaped connecting frame, the opening end of the U-shaped connecting frame is hinged to the outer end of the connecting rod 5, and the other end of the U-shaped connecting frame is provided with symmetrical hinge shafts on both sides to match the symmetrical hinge holes 10 on the two side walls of the guide groove 2, or the structure of the connecting frame 6 is that one end of the connecting rod is hinged to the outer end of the connecting rod 5 by providing symmetrical connecting ears, and the other end of the connecting rod is provided with symmetrical hinge shafts on both sides to match the symmetrical hinge holes 10 on the two side walls of the guide groove 2.

Claims

1. A fixture for quickly lifting a manhole cover, comprising a manhole cover, characterized in that: A longitudinal slideway (9) penetrating the right end face of the hanging beam (1) is arranged in the right half of the hanging beam (1), a guide groove (2) connected to the longitudinal slideway (9) is arranged on the top face of the hanging beam (1), a telescopic arm (3) is slidably mounted in the longitudinal slideway (9), a right arc-shaped clamping block device (4) is fixedly connected to the outer end of the telescopic arm (3), a connecting rod (5) is hingedly connected to the inner end of the telescopic arm (3), and symmetrically arranged on the inner end walls of the longitudinal slideway (9) in the guide groove (2) The hinge hole (10) is hingedly connected to the connecting frame (6), the other end of the connecting frame (6) is hingedly connected to the outer end of the connecting rod (5), the connecting frame (6) and the connecting rod (5) are both matched with the guide groove (2), a lifting ring (7) is arranged at the outer end of the connecting frame (6), and a left arc-shaped clamping block device (8) symmetrical to the right arc-shaped clamping block device (4) is arranged at the left end of the hanging beam (1), and the left arc-shaped clamping block device (8) and the right arc-shaped clamping block device (4) are matched with the outer circular end edge of the manhole cover to be clamped.

2. The fixture for quickly lifting a manhole cover according to claim 1 is characterized in that: The structure of the left arc-shaped clamping block device (8) and the right arc-shaped clamping block device (4) is that a connecting seat (11) is connected to a horizontally arranged arc-shaped clamping block (13) through an arc-shaped connecting arm (12).

3. The fixture for quickly lifting a manhole cover according to claim 1 is characterized in that: The sum of the lengths of the connecting frame (6) and the linkage rod (5) is smaller than the length of the guide groove (2).

4. The fixture for quickly lifting a manhole cover according to claim 1 is characterized in that: The connecting frame (6) is a U-shaped connecting frame, the opening end of the U-shaped connecting frame is hinged to the outer end of the connecting rod (5), and the other end of the U-shaped connecting frame is provided with symmetrical hinge shafts on both sides to match with symmetrical hinge holes (10) on both side walls of the guide groove (2), or the structure of the connecting frame (6) is that one end of the connecting rod is hinged to the outer end of the connecting rod (5) by providing symmetrical connecting ears, and the other end of the connecting rod is provided with symmetrical hinge shafts on both sides to match with symmetrical hinge holes (10) on both side walls of the guide groove (2).

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