Special clamp for disassembling chaining flange

Abstract

The special clamp comprises a wheel carrier and a fixing plate which are fixedly connected, an oil cylinder is fixedly connected to the outer surface wall of the fixing plate, an ejector rod is fixedly connected to the output end of the oil cylinder, and the cross section of the ejector rod is of a T-shaped structure. Two sets of pull rods and fixing assemblies used for fixing the two sets of pull rods are integrated on the outer surface wall of the fixing plate. In the application, the whole clamp is moved through the universal wheels, the clamping grooves in the two groups of pull rods are respectively combined to the two vertical sides of the chaining flange, at the moment, the ejector rod, the chaining flange and the pipeline are coaxial, then the oil cylinder pushes the ejector rod until the ejector rod is combined with the outer surface wall of the open end of the pipeline, and then the oil cylinder continuously pushes the ejector rod; and at the moment, the two groups of pull rods pull the chaining flange back until the chaining flange is separated from the pipeline, so that the chaining flange is dismounted, the working intensity of operators is reduced, and the dismounting convenience of the chaining flange is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a special clamp for disassembling flanges. Background Technology

[0002] A flange (also known as a flange connection) is a common type of pipe connection used to connect two pipes, valves, pumps, or other equipment together to form a sealed system. The flange is secured between the two fittings with bolts and nuts, and a gasket is used to ensure a tight seal.

[0003] Chinese Patent Publication No. CN207740603U, published on August 17, 2018, discloses a flange quick-connect device, including a left pipe and a right pipe. A shoulder is provided at the connection of the left pipe, and an open flange is provided at the shoulder. A fixed flange is provided at the connection of the right pipe. A locking plate is provided inside the open flange, and the locking plate and the shoulder are pressed against each other to realize that the positions of the open flange and the fixed flange correspond to each other.

[0004] The existing connecting flanges mentioned above are mostly heated first and then connected to external pipes and other fittings through interference fit. When it is necessary to remove the connecting flanges later, operators often need to use tools to hammer them, which is quite inconvenient. Therefore, there is an urgent need to propose a special clamp for removing connecting flanges to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a special clamp for disassembling flanges in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A special clamp for disassembling flanges includes a wheel frame and a fixing plate that are fixedly connected. A hydraulic cylinder is fixedly connected to the outer wall of the fixing plate. A push rod is fixedly connected to the output end of the hydraulic cylinder. The push rod has a T-shaped cross-section. Two sets of tie rods and a fixing assembly for fixing the two sets of tie rods are integrated on the outer wall of the fixing plate. The two sets of tie rods are symmetrically distributed on the outside of the push rod. Both sets of tie rods have an L-shaped structure, and the opposite surfaces of the two sets of tie rods are provided with slots.

[0008] Preferably, the fixing component includes a protrusion fixedly connected to the pull rod, and a fastening rod is inserted through a through hole inside the protrusion. The outer wall of the fastening rod is screwed to the inner wall of the fixing plate through a screw hole.

[0009] Preferably, multiple sets of screw holes are provided, and the multiple sets of screw holes are distributed vertically. Preferably, the protrusion is integrally formed with the horizontal end of the pull rod.

[0010] Preferably, the bottom of the wheel frame integrates multiple sets of omnidirectional wheels, and the multiple sets of omnidirectional wheels are distributed in a rectangular pattern.

[0011] Preferably, a bracket is fixedly connected to the bottom of the cylinder. The bracket has an L-shaped structure, and the horizontal end of the bracket is fixedly connected to the top of the wheel frame through a locking rod.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] 1. In this application, the clamp is moved as a whole by using casters, and the slots on the two sets of tie rods are respectively engaged with the vertical sides of the connecting flange. At this time, the push rod, the connecting flange and the pipeline are coaxial. Then the hydraulic cylinder pushes the push rod until the push rod engages with the outer wall of the open end of the pipeline. Then the hydraulic cylinder continues to push the push rod. At this time, the two sets of tie rods will pull back the connecting flange until the connecting flange is detached from the pipeline, thereby realizing the removal of the connecting flange, reducing the workload of the operator, and thus improving the convenience of disassembling and assembling the connecting flange.

[0014] 2. In this application, the movable pull rod aligns the through hole on the protrusion with the screw hole in the appropriate position.

[0015] The fastening rod is passed through the through hole and screwed into the screw hole at that position. This fixes the top rod and allows for quick adjustment of the spacing between the two sets of top rods as needed. This enables the clamp to adjust the position of the two sets of top rods according to usage requirements, thereby increasing the applicability of the special clamp for disassembling and connecting flanges. Attached Figure Description

[0016] Figure 1 shows a schematic diagram of the overall structure according to an embodiment of the present invention;

[0017] Figure 2 shows a schematic diagram of the bracket structure provided according to an embodiment of the present utility model;

[0018] Figure 3 shows a schematic diagram of the screw hole structure provided according to an embodiment of the present invention;

[0019] Figure 4 shows a schematic diagram of the tie rod structure provided according to an embodiment of the present invention.

[0020] Legend:

[0021] 1. Wheel frame; 2. Casters; 3. Hydraulic cylinder; 4. Bracket; 5. Locking rod; 6. Fixing plate; 7. Top rod; 8. Tie rod; 9. Lug; 10. Screw hole; 11. Fastening rod; 12. Slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4. This utility model provides a technical solution:

[0024] A special clamp for disassembling flanges includes a wheel frame 1 and a fixing plate 6 that are fixedly connected. A hydraulic cylinder 3 is fixedly connected to the outer wall of the fixing plate 6, and a push rod 7 is fixedly connected to the output end of the hydraulic cylinder 3.

[0025] The top rod 7 has a T-shaped cross-section. The outer wall of the fixing plate 6 is integrated with two sets of tie rods 8 and a fixing component for fixing the two sets of tie rods 8. The two sets of tie rods 8 are symmetrically distributed on the outside of the top rod 7. Both sets of tie rods 8 have an L-shaped structure, and the opposite surfaces of the two sets of tie rods 8 are provided with slots 12.

[0026] The clamp is moved as a whole by the casters 2, and the slots 12 on the two sets of tie rods 8 are respectively engaged with the vertical sides of the connecting flange. At this time, the push rod 7, the connecting flange and the pipeline are coaxial. Then the hydraulic cylinder 3 pushes the push rod 7 until the push rod 7 engages with the outer wall of the open end of the pipeline. Then the hydraulic cylinder 3 continues to push the push rod 7. At this time, the two sets of tie rods 8 will pull back the connecting flange until the connecting flange is detached from the pipeline, thereby realizing the removal of the connecting flange, reducing the workload of the operator, and thus improving the convenience of connecting flange disassembly and assembly.

[0027] Specifically, such as Figure 2 and Figure 4 As shown, the fixing component includes a protrusion 9 fixedly connected to the tie rod 8. A fastening rod 11 is inserted through a through hole inside the protrusion 9. The outer wall of the fastening rod 11 is screwed to the inner wall of the fixing plate 6 through a screw hole 10, thus ensuring convenient disassembly and replacement of the tie rod 8. Multiple sets of screw holes 10 are provided, and the multiple sets of screw holes 10 are vertically distributed. Moving the tie rod 8 makes the through hole on the protrusion 9 correspond to the screw hole 10 at the appropriate position. The fastening rod 11 is passed through the through hole and screwed into the screw hole 10 at that position, thereby fixing the top rod 7. At the same time, the spacing between the two sets of top rods 7 can be quickly adjusted as needed, so that the position of the two sets of top rods 7 can be adjusted according to the usage requirements, thereby improving the applicability of the special clamp for disassembling and connecting flanges.

[0028] Specifically, such as Figure 2 and Figure 3As shown, the convex piece 9 and the horizontal end of the pull rod 8 are integrally formed to ensure the stability of the connection between the pull rod 8 and the fixed plate 6. The bottom of the wheel frame 1 integrates multiple sets of universal wheels 2, which are arranged in a rectangular pattern to ensure the ease of movement of the clamp. The bottom of the hydraulic cylinder 3 is fixedly connected to a bracket 4, which has an L-shaped structure and the horizontal end of the bracket 4 is open.

[0029] The locking rod 5 is fixedly connected to the top of the wheel frame 1 to further ensure the stability of the position of the hydraulic cylinder 3.

[0030] Working principle: The clamp is moved as a whole by the casters 2, and the slots 12 on the two sets of tie rods 8 are respectively engaged with the vertical sides of the connecting flange. At this time, the push rod 7, the connecting flange and the pipeline are coaxial. Then, the hydraulic cylinder 3 pushes the push rod 7 until the push rod 7 engages with the outer wall of the open end of the pipeline. Then the hydraulic cylinder 3 continues to push the push rod 7. At this time, the two sets of tie rods 8 will pull back the connecting flange until the connecting flange is detached from the pipeline, thereby realizing the removal of the connecting flange. This reduces the workload of the operator and improves the convenience of disassembling and assembling the connecting flange. Moving the tie rod 8 makes the through hole on the convex piece 9 correspond to the screw hole 10 in the appropriate position. The fastening rod 11 is passed through the through hole and screwed into the screw hole 10 in the corresponding position, thereby fixing the push rod 7. At the same time, the distance between the two sets of push rods 7 can be quickly adjusted as needed, so that the position of the two sets of push rods 7 can be adjusted according to the usage requirements, thereby improving the applicability of the special clamp for disassembling the connecting flange.

[0031] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A special clamp for disassembling flanges, comprising a wheel frame (1) and a fixing plate (6) for fixed connection, characterized in that, A hydraulic cylinder (3) is fixedly connected to the outer wall of the fixing plate (6). A push rod (7) is fixedly connected to the output end of the hydraulic cylinder (3). The push rod (7) has a T-shaped cross-section. Two sets of tie rods (8) and a fixing component for fixing the two sets of tie rods (8) are integrated on the outer wall of the fixing plate (6). The two sets of tie rods (8) are symmetrically distributed on the outside of the push rod (7). Both sets of tie rods (8) have an L-shaped structure, and slots (12) are opened on the opposite surfaces of the two sets of tie rods (8).

2. A special clamp for disassembling and reassembling flanges according to claim 1, characterized in that, The fixing component includes a protrusion (9) fixedly connected to the pull rod (8). A fastening rod (11) is inserted through a perforation inside the protrusion (9). The outer wall of the fastening rod (11) is screwed to the inner wall of the fixing plate (6) through a screw hole (10).

3. A special clamp for disassembling and reassembling flanges according to claim 2, characterized in that, The screw holes (10) are provided in multiple sets, and the multiple sets of screw holes (10) are distributed in a vertical straight line.

4. A special clamp for disassembling and reassembling flanges according to claim 3, characterized in that, The protrusion (9) and the horizontal end of the pull rod (8) are integrally formed.

5. A special clamp for disassembling and reassembling flanges according to claim 4, characterized in that, The bottom of the wheel frame (1) is integrated with multiple sets of universal wheels (2), and the multiple sets of universal wheels (2) are arranged in a rectangular shape.

6. A special clamp for disassembling and reassembling flanges according to claim 5, characterized in that, The bottom of the cylinder (3) is fixedly connected to a bracket (4), which has an L-shaped structure, and the horizontal end of the bracket (4) is fixedly connected to the top of the wheel frame (1) through a locking rod (5).

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