Tool for quickly replacing cover plate

Abstract

The utility model relates to the technical field of lifting tools, in particular to a tool for quickly replacing a cover plate, which comprises a mounting frame, a first claw arm, a second claw arm, a third claw arm, a connecting rod and a lifting lug, a first claw arm, a second claw arm and a third claw arm are sequentially and rotationally installed on the outer side of the lower portion of the installation frame from left to right at intervals, and the first claw arm comprises a first lantern ring, a first vertical arm, a first arc-shaped arm and a first prying head. The lifting lug is reasonable and compact in structure and convenient to use, the first claw arm and the third claw arm are placed on one side of the cover plate, the first prying head and the third prying head are inserted into a gap in the edge of the cover plate, the second claw arm is placed on the other side of the cover plate, the second prying head is inserted into the gap in the edge of the cover plate, and the lifting lug is connected to a lifting arm of the excavator through the steel wire rope. The lifting force of the excavator enables the first claw arm, the second claw arm and the third claw arm to contract inwards to tightly grasp the cover plate, and the device has the advantages of being stable, reliable and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting tools and is a tool for quickly replacing a cover plate. Background Art

[0002] The concrete cover of the cable trench of the substation has been in use for a long time, and the cover is seriously aged, which poses a safety hazard. The cover in the substation interval needs to be replaced. When replacing the cover, personnel need to enter the cable trench and tie a cover with ropes, and then carry it by a small excavator. When entering the cable trench with ropes, there is a risk of poisoning and suffocation. The cover is seriously aged, and there is a risk of being hit by objects. In addition, there are many cables in the cable trench, which poses a risk of electric shock. At the same time, it wastes time and increases the labor of employees, which increases the burden on improving work efficiency. Summary of the invention

[0003] The utility model provides a tool for quickly replacing a cover plate, which overcomes the deficiencies of the above-mentioned prior art and can effectively solve the problem that the existing cable trench cover plate is difficult to pry up and replace.

[0004] The technical scheme of the utility model is realized through the following measures: a tool for quickly replacing a cover plate comprises an installation frame, a first claw arm, a second claw arm, a third claw arm, a connecting rod and a lifting ear, the installation frame is a rectangular frame structure, a lifting ear is fixedly installed on the middle part of the upper side of the installation frame, and the first claw arm, the second claw arm and the third claw arm are installed on the outer side of the lower part of the installation frame in an interval-rotating manner from left to right, the first claw arm comprises a first ring, a first vertical arm, a first arc arm and a first prying head, a first ring is sleeved on the outer side of the left end of the lower part of the installation frame, the first vertical arm is fixedly installed on the lower side of the first ring, the first arc arm is fixedly installed on the lower end of the first vertical arm, the lower end of the first arc arm is located in front of the upper end thereof, the lower end of the first arc arm is fixedly installed together with the lower end of the first prying head, the first prying head is located in front of the first arc arm and is inclined in a front-high-back-low shape; the second claw arm comprises a second ring, a second oblique arm, a second arc arm and a second prying head, The second arm is fixedly mounted on the outside of the middle part of the lower part of the mounting frame, and the second inclined arm is fixedly mounted on the lower side of the second ring, and the second inclined arm is inclined in a front lower and rear higher shape, and the second arc arm is fixedly mounted on the lower end of the second oblique arm, and the lower end of the second arc arm is located in front of its upper end, and the lower end of the second arc arm is fixedly mounted together with the lower end of the second prying head, and the second prying head is located behind the second arc arm and is inclined in a front lower and rear higher shape; the third claw arm comprises a third ring, a third vertical arm, a third arc arm and a third prying head, and the third ring is fixedly mounted on the outside of the right end of the lower part of the mounting frame, and the third vertical arm is fixedly mounted on the lower side of the third ring, and the third arc arm is fixedly mounted on the lower end of the third vertical arm, and the lower end of the third arc arm is located in front of its upper end, and the lower end of the third arc arm is fixedly mounted together with the lower end of the third prying head, and the third prying head is located in front of the third arc arm and is inclined in a front higher and rear lower shape; a connecting rod is fixedly mounted between the lower end of the first vertical arm and the lower end of the second vertical arm.

[0005] The following are further optimizations and / or improvements to the above utility model technical solution:

[0006] The upper ends of the first prying head, the second prying head and the third prying head may be provided with prying slopes on both sides, and the prying slopes are provided with anti-skid patterns.

[0007] The angle between the first prying head and the first arc-shaped arm may be the first prying angle, the angle between the second prying head and the second arc-shaped arm may be the second prying angle, and the angle between the third prying head and the third arc-shaped arm may be the third prying angle. The first prying angle, the second prying angle and the third prying angle may all be between 75 degrees and 85 degrees.

[0008] The first prying angle, the second prying angle and the third prying angle can all be 80 degrees.

[0009] The utility model has a reasonable and compact structure and is easy to use. The first claw arm and the third claw arm are placed on one side of the cover plate, and the first prying head and the third prying head are inserted into the edge gap of the cover plate, and the second claw arm is placed on the other side of the cover plate, and the second prying head is inserted into the edge gap of the cover plate, so that the lifting ear is connected to the boom of the excavator through a wire rope. The rising force of the excavator causes the first claw arm, the second claw arm and the third claw arm to contract inwardly and tightly grasp the cover plate. The utility model has the characteristics of stability, reliability and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a schematic diagram of the main structure of embodiments 1 to 4 of the utility model.

[0011] Attached Figure 2 For attachment Figure 1 Schematic diagram of the right view structure.

[0012] Attached Figure 3 For attachment Figure 1 Schematic diagram of the three-dimensional structure.

[0013] The codes in the accompanying drawings are: 1 is a mounting frame, 2 is a connecting rod, 3 is a lifting ear, 4 is a first ring, 5 is a first vertical arm, 6 is a first arc-shaped arm, 7 is a first prying head, 8 is a second ring, 9 is a second inclined arm, 10 is a second arc-shaped arm, 11 is a second prying head, 12 is a third ring, 13 is a third vertical arm, 14 is a third arc-shaped arm, 15 is a third prying head, and 16 is a prying slope. DETAILED DESCRIPTION

[0014] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0015] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0016] The present invention is further described below in conjunction with the embodiments and drawings:

[0017] Embodiment 1: As attached Figure 1 , 2As shown in Figure 3, the quick cover replacement tool includes a mounting frame 1, a first claw arm, a second claw arm, a third claw arm, a connecting rod 2 and a lifting ear 3. The mounting frame 1 is a rectangular frame structure. The lifting ear 3 is fixedly installed in the middle of the upper side of the mounting frame 1. The first claw arm, the second claw arm and the third claw arm are installed in turn from left to right on the outer side of the lower part of the mounting frame 1. The first claw arm includes a first ring 4, a first vertical arm 5, a first arc-shaped arm 6 and a first prying head 7. The first ring 4 is sleeved on the outer side of the left end of the lower part of the mounting frame 1 A first vertical arm 5 is fixedly installed on the lower side of the first collar 4, a first arc-shaped arm 6 is fixedly installed on the lower end of the first vertical arm 5, the lower end of the first arc-shaped arm 6 is located in front of its upper end, the lower end of the first arc-shaped arm 6 is fixedly installed together with the lower end of the first prying head 7, the first prying head 7 is located in front of the first arc-shaped arm 6 and is inclined in a front-high and rear-low shape; the second claw arm includes a second collar 8, a second oblique arm 9, a second arc-shaped arm 10 and a second prying head 11, the second collar 8 is sleeved on the outer side of the lower middle part of the installation frame 1, and the first A second oblique arm 9 is fixedly installed on the lower side of the second ring 8, and the second oblique arm 9 is inclined in a shape of being lower in front and higher in the back. A second arc-shaped arm 10 is fixedly installed on the lower end of the second oblique arm 9, and the lower end of the second arc-shaped arm 10 is located in front of its upper end. The lower end of the second arc-shaped arm 10 is fixedly installed together with the lower end of the second prying head 11, and the second prying head 11 is located behind the second arc-shaped arm 10 and is inclined in a shape of being lower in front and higher in the back; the third claw arm includes a third ring 12, a third vertical arm 13, a third arc-shaped arm 14 and a third prying head 15. A third ring 12 is sleeved on the outer side of the lower right end of the mounting frame 1, a third vertical arm 13 is fixedly mounted on the lower side of the third ring 12, a third arcuate arm 14 is fixedly mounted on the lower end of the third vertical arm 13, the lower end of the third arcuate arm 14 is located in front of its upper end, the lower end of the third arcuate arm 14 is fixedly mounted together with the lower end of the third prying head 15, the third prying head 15 is located in front of the third arcuate arm 14 and is inclined in a shape of high front and low back; a connecting rod 2 is fixedly mounted between the lower end of the first vertical arm 5 and the lower end of the second vertical arm. During use, the first claw arm and the third claw arm are placed on one side of the cover plate, and the first prying head 7 and the third prying head 15 are inserted into the edge gap of the cover plate, the second claw arm is placed on the other side of the cover plate, and the second prying head 11 is inserted into the edge gap of the cover plate, so that the lifting ear 3 is connected to the excavator boom through a wire rope. The rising force of the excavator causes the first claw arm, the second claw arm and the third claw arm to contract inward and tightly grasp the cover plate. The greater the upward pulling force, the greater the force of clamping the cover plate, thereby avoiding the change of lifting the cover plate by manpower at the beginning, saving a lot of manpower, material resources and working time, while also reducing the safety risks at work and ensuring the safety of the staff.

[0018] The above-mentioned quick cover replacement tool can be further optimized and / or improved according to actual needs:

[0019] Embodiment 2: As attached Figure 1 , 2As shown in Figures 3 and 4, the first prying head 7, the second prying head 11 and the third prying head 15 are provided with a prying slope 16 on both sides of the upper ends thereof, and an anti-slip pattern is provided on the prying slope 16. In the process of use, such a configuration facilitates the first prying head 7, the second prying head 11 and the third prying head 15 to be better inserted into the gap of the cover plate prying, so that the first claw arm, the second claw arm and the third claw arm can be contracted inward by the rising force of the excavator, so as to firmly grasp the cover plate and prevent the cover plate from slipping during the rising process.

[0020] Embodiment 3: As attached Figure 1 , 2 As shown in Figures 3 and 4, the angle between the first prying head 7 and the first arc-shaped arm 6 is the first prying angle, the angle between the second prying head 11 and the second arc-shaped arm 10 is the second prying angle, and the angle between the third prying head 15 and the third arc-shaped arm 14 is the third prying angle. The first prying angle, the second prying angle and the third prying angle are all between 75 degrees and 85 degrees. In use, through such a setting, the first claw arm, the second claw arm and the third claw arm can be tightly grasped when they are retracted inward by the rising force of the excavator.

[0021] Embodiment 4: As attached Figure 1 , 2 As shown in 3, the first prying angle, the second prying angle and the third prying angle are all 80 degrees. In the process of use, through such a setting, the first claw arm, the second claw arm and the third claw arm can be retracted inward by the rising force of the excavator, so as to better hold the cover plate tightly.

[0022] The above technical features constitute the best implementation example of the present utility model, which has strong adaptability and best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. A tool for quickly replacing a cover plate, characterized in that The mounting frame comprises a mounting frame, a first claw arm, a second claw arm, a third claw arm, a connecting rod and a lifting ear. The mounting frame is a rectangular frame structure. A lifting ear is fixedly installed on the middle part of the upper side of the mounting frame. The first claw arm, the second claw arm and the third claw arm are installed on the outer side of the lower part of the mounting frame in an interval and rotation manner from left to right. The first claw arm comprises a first ring, a first vertical arm, a first arc-shaped arm and a first prying head. The first ring is sleeved on the outer side of the left end of the lower part of the mounting frame. The first vertical arm is fixedly installed on the lower side of the first ring. The first arc-shaped arm is fixedly installed on the lower end of the first vertical arm. The lower end of the first arc-shaped arm is located in front of the upper end thereof. The lower end of the first arc-shaped arm is fixedly installed together with the lower end of the first prying head. The first prying head is located in front of the first arc-shaped arm and is inclined in a shape of high front and low back; the second claw arm comprises a second ring, a second oblique arm, a second arc-shaped arm and a second prying head. The second ring is sleeved on the outer side of the middle part of the lower part of the mounting frame The third claw arm comprises a third ring, a third vertical arm, a third arc arm and a third prying head, and the second prying head is located behind the second arc arm and is inclined in a front-lower and rear-higher shape; the third claw arm comprises a third ring, a third vertical arm, a third arc arm and a third prying head, and the third ring is mounted on the outer side of the right end of the lower part of the installation frame, and the third ring is fixedly installed on the lower side of the third ring, and the third vertical arm is fixedly installed on the lower end of the third vertical arm, and the lower end of the third arc arm is located in front of the upper end thereof, and the lower end of the third arc arm is fixedly installed together with the lower end of the third prying head, and the third prying head is located in front of the third arc arm and is inclined in a front-higher and rear-lower shape; a connecting rod is fixedly installed between the lower end of the first vertical arm and the lower end of the second vertical arm.

2. The quick cover replacement tool according to claim 1, characterized in that The first prying head, the second prying head and the third prying head are provided with prying slopes on both sides of the upper ends thereof, and anti-slip patterns are provided on the prying slopes.

3. The quick cover replacement tool according to claim 1 or 2, characterized in that The angle between the first prying head and the first arc-shaped arm is the first prying angle, the angle between the second prying head and the second arc-shaped arm is the second prying angle, and the angle between the third prying head and the third arc-shaped arm is the third prying angle. The first prying angle, the second prying angle and the third prying angle are all between 75 degrees and 85 degrees.

4. The quick cover replacement tool according to claim 3, characterized in that The first prying angle, the second prying angle and the third prying angle are all 80 degrees.

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