Auxiliary jacking device for flange valve disassembly

Abstract

An auxiliary jacking device for flange valve disassembly comprises a clamping plate, the clamping plate is composed of two plates, each plate is provided with a semicircular hole, the two semicircular holes jointly form a circular hole for a pipeline to penetrate through, and a flange grabbing rod matched with a pipeline flange on the pipeline in a clamped mode is arranged on the clamping plate; the number of the clamping plates is two, and a jacking mechanism is arranged between the two clamping plates. The jacking mechanism comprises a threaded sleeve, jacking screws are inserted into the two ends of the threaded sleeve respectively, and one ends of the jacking screws are exposed out of the threaded sleeve and connected with the clamping plates. And a rotary insertion rod is arranged on the threaded sleeve. By the adoption of the structure, the problems that when an existing valve is disassembled, flanges are small in distance and not prone to being pried open, time and labor are wasted, construction efficiency is low, and potential safety hazards exist can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance, in particular to an auxiliary supporting device for disassembling flange valves. Background Art

[0002] In the water supply industry, valves are important components of water pipelines, used to control and regulate the flow of media in the pipeline. The valve and pipeline are usually connected by flanges, and the connection between the valve flange and the pipeline flange is sealed by a sealing ring. After long-term use, the valve may be damaged and need to be replaced, or the sealing ring may fail to seal. In this case, the old valve needs to be removed and replaced with a new valve or sealing ring. The following problems may occur when disassembling the valve:

[0003] 1. During the installation and use of the pipeline, due to the long-term effect of the bolt pre-tightening force, part of the pipeline is deformed, the corresponding reserved space between the two flanges is small, the water stop pad is adhered, etc., which makes it difficult to pry the flange open. In addition, the prying space is small and the elasticity of the pipeline cannot be maintained, making it difficult to disassemble and install the valve;

[0004] 2. When personnel disassemble the valve, the flange is not easy to pry open, which increases the labor intensity of personnel;

[0005] 3. When using a crowbar to pry open the flange, the crowbar may slip, which may easily cause personal injury or equipment damage. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide an auxiliary supporting device for disassembling flange valves, which can effectively solve the problems of time-consuming and labor-intensive, low construction efficiency and potential safety hazards caused by the small distance between flanges and difficulty in prying open during existing valve disassembly.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: an auxiliary supporting device for disassembling flange valves, comprising a clamping plate, the clamping plate is composed of two plates, each plate is provided with a semicircular hole, the two semicircular holes together form a circular hole for the pipeline to pass through, and the clamping plate is provided with a flange grab bar that is tightly matched with the pipeline flange on the pipeline;

[0008] There are two clamping plates, and a supporting mechanism is provided between the two clamping plates;

[0009] The supporting mechanism comprises a threaded sleeve, and a supporting screw is inserted at each end of the threaded sleeve, and one end of the supporting screw is exposed outside the threaded sleeve and connected to the clamping plate;

[0010] The threaded sleeve is provided with a rotating insert rod.

[0011] In a preferred embodiment, the two plates constituting the splint are provided with ear plates on both sides, wherein the ear plate on one plate is provided with a smooth hole, and the other plate is provided with a threaded hole, and the connecting bolts pass through the smooth hole and the threaded hole in turn to achieve the connection and fixation between the two plates.

[0012] In a preferred solution, an anti-slip cushion layer is provided on the circular surface of the semicircular hole.

[0013] In a preferred solution, the clamping plate is provided with a grab bar seat, which is composed of two upper and lower plates, an adjusting rod is passed through the upper plate, one end of the adjusting rod is movably connected to the lower plate, the adjusting rod is a threaded rod, one end of the flange grab bar is located in the grab bar seat, and the adjusting rod passes through one end of the flange grab bar and is threadedly matched with it;

[0014] Two protruding parts are arranged on one end of the flange grab bar away from the grab bar seat, and the two protruding parts form claw parts.

[0015] In a preferred solution, a supporting mechanism positioning square groove is provided on the clamping plate, and an end square piece is provided on one end of the supporting screw exposed outside the threaded sleeve, and the end square piece is installed in the supporting mechanism positioning square groove.

[0016] In a preferred solution, an insert rod installation cylinder is provided on the outer wall of the threaded sleeve, and the rotating insert rod is inserted and fixed in the insert rod installation cylinder.

[0017] In a preferred embodiment, the anti-slip pad layer is composed of multiple semicircular strips, a single semicircular strip has a notch at the midpoint of the concave arc surface, a screw hole is provided in the notch, and the multiple semicircular strips are connected to form a whole by an anti-slip pad fixing bolt passing through the screw hole.

[0018] The auxiliary supporting device for disassembling flange valves provided by the utility model has the following beneficial effects by adopting the above structure:

[0019] (1) The device tightly engages the flange gripper on the clamping plate with the pipeline flange, ensuring the stable positioning of the valve during the disassembly process, preventing leakage or damage caused by improper operation, and significantly improving the safety and efficiency of the operation;

[0020] (2) The semicircular hole design combined with the anti-slip pad can not only adapt to pipes of different diameters, ensuring the stable fixation of the device, but also effectively avoid sliding during operation, thus enhancing the versatility and practicality of the device;

[0021] (3) The innovative design of the grab bar base and the adjustment rod enables the flange grab bar to be precisely adjusted according to actual needs, ensuring a close fit with flanges of different specifications. This flexibility greatly improves the applicability and ease of operation of the device.

[0022] (4) The supporting mechanism realizes accurate and stable support of the valve through the cooperation of the threaded sleeve and the supporting screw, as well as the design of the end square piece and the positioning square groove. Especially when large torque operation is required, it can effectively disperse the force and protect the valve and pipeline from damage;

[0023] (5) The structural design of the ear plate and the connecting bolts enables the two-plate clamp to be quickly and firmly connected or separated, which is convenient for quick installation and adjustment on site. At the same time, the setting of the rotating plug rod further simplifies the operation process of the supporting mechanism and improves the flexibility of on-site operations.

[0024] (6) The thickness of the anti-slip cushion layer can be adjusted to fit pipes of different diameters and achieve the purpose of valve disassembly on different pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0026] Figure 1 It is a structural schematic diagram of a single splint in the utility model.

[0027] Figure 2 It is a schematic diagram of the structure of the utility model when performing valve disassembly operation.

[0028] Figure 3 This is a schematic diagram of the anti-skid cushion structure of the utility model.

[0029] In the figure: splint 1, semicircular hole 101, ear plate 102, anti-skid pad 2, connecting bolt 3, smooth hole 4, threaded hole 5, grab rod seat 6, adjusting rod 7, flange grab rod 8, claw 9, top support mechanism positioning square groove 10, threaded sleeve 11, top support screw 12, end square piece 13, plug rod installation tube 14, rotating plug rod 15, pipeline 16, pipeline flange 161, valve 17, valve flange 171, notch 18, screw hole 19, anti-skid pad fixing bolt 20. DETAILED DESCRIPTION

[0030] like Figure 1-2 In the invention, an auxiliary supporting device for disassembling flange valves comprises a clamping plate 1, wherein the clamping plate 1 is composed of two plates, each plate is provided with a semicircular hole 101, the two semicircular holes 101 together form a circular hole for a pipe 16 to pass through, and the clamping plate 1 is provided with a flange grab bar 8 which is tightly matched with a pipe flange 161 on the pipe 16;

[0031] There are two clamping plates 1, and a supporting mechanism is provided between the two clamping plates 1;

[0032] The supporting mechanism comprises a threaded sleeve 11, and a supporting screw 12 is inserted at both ends of the threaded sleeve 11, and one end of the supporting screw 12 is exposed outside the threaded sleeve 11 and is connected to the clamping plate 1;

[0033] The threaded sleeve 11 is provided with a rotating insert rod 15 .

[0034] In a preferred embodiment, the two plates constituting the splint 1 are provided with ear plates 102 on both sides, wherein the ear plate 102 on one plate is provided with a smooth hole 4, and the other plate is provided with a threaded hole 5, and the connecting bolt 3 passes through the smooth hole 4 and the threaded hole 5 in turn to achieve the connection and fixation between the two plates.

[0035] In a preferred solution, an anti-slip cushion layer 2 is provided on the circular surface of the semicircular hole 101 .

[0036] In the preferred embodiment, the clamping plate 1 is provided with a grab bar seat 6, which is composed of two upper and lower plates. An adjusting rod 7 is passed through the upper plate, and one end of the adjusting rod 7 is movably connected to the lower plate. The adjusting rod 7 is a threaded rod, and one end of the flange grab bar 8 is located in the grab bar seat 6, and the adjusting rod 7 passes through one end of the flange grab bar 8 and is threadedly matched with it.

[0037] The flange grab bar 8 is provided with two protruding parts on one end away from the grab bar seat 6 , and the two protruding parts form claws 9 .

[0038] In a preferred embodiment, a supporting mechanism positioning square groove 10 is provided on the clamping plate 1 , and an end square piece 13 is provided on one end of the supporting screw 12 exposed outside the threaded sleeve 11 , and the end square piece 13 is installed in the supporting mechanism positioning square groove 10 .

[0039] In a preferred solution, a rod installation tube 14 is provided on the outer wall of the threaded sleeve 11 , and a rotating rod 15 is inserted and fixed in the rod installation tube 14 .

[0040] In a preferred embodiment, the anti-slip pad layer 2 is composed of a plurality of semicircular strips, a notch 18 is provided at the midpoint of the concave arc surface of a single semicircular strip, a screw hole 19 is provided in the notch 18, and the plurality of semicircular strips are connected to form a whole by an anti-slip pad layer fixing bolt 20 passing through the screw hole 19.

[0041] The above embodiment provides a specific implementation of an auxiliary supporting device for flange valve disassembly and assembly, the device mainly includes two symmetrically arranged clamping plates 1, each clamping plate 1 is made of high-strength steel, has a rectangular plate shape, and its size is adapted to the diameter range of common industrial pipelines. A semicircular hole 101 with a radius of R is opened at the center of each clamping plate 1. After the two clamping plates 1 are combined, a complete circular hole with a diameter of 2R is formed to allow the pipeline 16 to pass smoothly.

[0042] On the two side edges of each clamping plate 1, ear plates 102 are welded, and smooth holes 4 and threaded holes 5 are respectively provided on the ear plates. The two clamping plates can be tightly fixed together by passing the connecting bolts 3 through these holes to form a stable frame structure. A wear-resistant and anti-skid pad layer 2 is attached to the inner side of the edge of the semicircular hole 101, and the material is rubber or soft plastic to increase the friction with the contact surface of the pipe. The semicircular hole 101 can also be replaced by a method of avoiding knurling on the semicircular hole 101 to prevent sliding.

[0043] The clamping plate 1 is also integrated with a gripping rod seat 6, which is welded from two upper and lower steel plates, with a space in the middle for the adjustment rod 7 to pass through. The adjustment rod 7 is a metal rod with an external thread, one end of which is connected to the lower plate of the gripping rod seat through a movable joint to facilitate the adjustment of its extension length. The flange gripping rod 8 is a metal rod with an internal thread at one end, which can be screwed with the external thread of the adjustment rod 7 to achieve the telescopic adjustment of the flange gripping rod. The other end of the flange gripping rod 8 is designed as a claw 9, which includes two inwardly bent protrusions that can tightly hold the edge of the pipe flange 161 to ensure a firm fixation.

[0044] The supporting mechanism is composed of a high-strength threaded sleeve 11, with a supporting screw 12 inserted at each end of the threaded sleeve, and can be adjusted by threaded connection. The outer wall of the threaded sleeve 11 is provided with a plug-in rod installation tube 14, and a built-in rotating plug-in rod 15, which can be rotated by a handle or other driving method to drive the supporting screw 12 in the threaded sleeve 11 to move synchronously, thereby achieving accurate lateral supporting of the valve. The end of the supporting screw 12 exposed outside the sleeve is equipped with an end square piece 13, which is embedded in the positioning square groove 10 on the clamping plate 1 to ensure the vertical transmission of force during the supporting process and avoid deviation.

[0045] Through the specific structural design of the above-mentioned embodiment, the auxiliary supporting device of the present invention can be effectively applied to the disassembly operations of various flange valves, thereby significantly improving the safety and efficiency of the operations.

Claims

1. An auxiliary supporting device for disassembling a flange valve, comprising a clamping plate (1), characterized in that: The clamping plate (1) is composed of two plates, each plate is provided with a semicircular hole (101), the two semicircular holes (101) together form a circular hole for the pipe (16) to pass through, and the clamping plate (1) is provided with a flange grab bar (8) which is clamped and matched with the pipe flange (161) on the pipe (16); There are two clamping plates (1), and a supporting mechanism is provided between the two clamping plates (1); The supporting mechanism comprises a threaded sleeve (11), with a supporting screw rod (12) inserted at each end of the threaded sleeve (11), one end of the supporting screw rod (12) being exposed outside the threaded sleeve (11) and being connected to the clamping plate (1); The threaded sleeve (11) is provided with a rotating insert rod (15).

2. The auxiliary supporting device for flange valve disassembly according to claim 1, characterized in that: The two plates constituting the clamping plate (1) are provided with ear plates (102) on both sides, the ear plate (102) on one of the plates is provided with a smooth hole (4), and the other plate is provided with a threaded hole (5), and the connecting bolt (3) passes through the smooth hole (4) and the threaded hole (5) in sequence to achieve the connection and fixation between the two plates.

3. The auxiliary supporting device for flange valve disassembly according to claim 1, characterized in that: An anti-slip cushion layer (2) is provided on the circular surface of the semicircular hole (101).

4. The auxiliary supporting device for flange valve disassembly according to claim 1, characterized in that: The clamping plate (1) is provided with a grab bar seat (6), which is composed of two upper and lower plates. An adjustment rod (7) is passed through the upper plate, and one end of the adjustment rod (7) is movably connected to the lower plate. The adjustment rod (7) is a threaded rod. One end of the flange grab bar (8) is located in the grab bar seat (6), and the adjustment rod (7) passes through one end of the flange grab bar (8) and is threadedly engaged with it. Two raised portions are provided on one end of the flange grab bar (8) away from the grab bar seat (6), and the two raised portions form claw portions (9).

5. The auxiliary supporting device for flange valve disassembly according to claim 1, characterized in that: The clamping plate (1) is provided with a supporting mechanism positioning square groove (10), and an end square piece (13) is provided on one end of the supporting screw rod (12) exposed outside the threaded sleeve (11), and the end square piece (13) is installed in the supporting mechanism positioning square groove (10).

6. The auxiliary supporting device for flange valve disassembly according to claim 1, characterized in that: An insert rod installation cylinder (14) is provided on the outer wall of the threaded sleeve (11), and a rotating insert rod (15) is inserted and fixedly arranged in the insert rod installation cylinder (14).

7. The auxiliary supporting device for flange valve disassembly according to claim 3, characterized in that: The anti-skid pad layer (2) is composed of a plurality of semicircular strips, a notch (18) is provided at the midpoint of the concave arc surface of a single semicircular strip, a screw hole (19) is provided in the notch (18), and the plurality of semicircular strips are connected to form a whole by an anti-skid pad layer fixing bolt (20) passing through the screw hole (19).

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