Rapid maintenance equipment for welded gate valve

Abstract

The invention relates to rapid maintenance equipment for a welded gate valve, which comprises a maintenance gate valve, a flange of the maintenance gate valve is fixedly connected to a positioning plate through a bolt, and an inflation pipe is fixedly inserted in the middle of the positioning plate in a sealed manner; connecting positioning rods are symmetrically connected to the two sides of the connecting rod through rotating shafts, positioning frames are fixedly connected to the outer ends of the positioning rods, and the positioning frames are located on the two sides of the upper portion of the maintenance gate valve in an extruded mode; a connecting handle rod is fixedly connected to the front end of the connecting rod, a connecting plate is connected to the lower end of the connecting handle rod through a pin shaft, a valve plate is connected to the rear side of the lower end of the connecting plate through a bolt, a connecting plate is fixedly connected to the upper portion of the front end of the connecting handle rod, and a limiting rod is movably inserted into the middle of the connecting plate in a limiting mode. According to the overall structure provided by the embodiment of the invention, the electric telescopic rod is started to enable the transmission rod to extrude the valve plate, so that the sealing condition of the valve plate can be greatly improved, and the valve plate is more convenient to maintain.

Description

Technical Field

[0001] This application relates to the technical field of welded gate valves, and particularly to a rapid repair device for welded gate valves. Background Art

[0002] A welded gate valve is a forced-sealing valve with a simple structure, convenient manufacturing and repair, a small working stroke, and a short opening and closing time. The welded gate valve belongs to a forced-sealing valve, with a simple structure, convenient manufacturing and repair, a small working stroke, and a short opening and closing time. It not only has good sealing performance, small friction force between the sealing surfaces, and a long service life, but when repairing the valve plate of the welded gate valve, after the valve plate is repaired, the inspection of the valve plate requires reassembling and welding the gate valve again, making the inspection of the valve plate very troublesome. For this reason, we have proposed a rapid repair device for welded gate valves. Summary of the Invention

[0003] This application provides a rapid repair device for welded gate valves to solve the above-mentioned problems.

[0004] This application provides a rapid repair device for welded gate valves, including: A repair gate valve, the flange of the repair gate valve is fixedly connected to a positioning plate by bolts, and an inflation pipe is fixedly and hermetically inserted in the middle of the positioning plate; A connecting rod, both sides of the connecting rod are symmetrically connected to connecting positioning rods through rotating shafts, and positioning frames are fixedly connected to the outer ends of the positioning rods, and the positioning frames are extruded and positioned on both sides of the upper part of the repair gate valve; The front end of the connecting rod is fixedly connected to a connecting handle rod, the lower end of the connecting handle rod is connected to a connecting plate through a pin shaft, the lower end and the rear side of the connecting plate are connected to a valve plate by bolts, the front upper part of the connecting handle rod is fixedly connected to a connecting plate, a limiting rod is limited and movably inserted in the middle of the connecting plate, and the lower end of the limiting rod is fixedly connected to an electric telescopic rod through a fixing plate; A stabilizing rod, the rear end of the stabilizing rod is fixedly connected to a limiting block, the limiting block and the stabilizing rod are movably inserted in the inside and the front side of the connecting rod, racks are symmetrically arranged on both sides of the limiting block, and arc teeth are meshed and connected to the outer sides of the racks, and the arc teeth are arranged at the opposite ends of the connecting positioning rods.

[0005] Preferably, a first positioning bolt and a second positioning bolt are respectively inserted into the upper ends of the positioning frames, and the lower end of the second positioning bolt is rotatably connected to a pressing and positioning rod through a bearing.

[0006] Preferably, the upper end of the limiting rod is fixedly connected to a first handle, a limiting strip is fixedly connected to the outer side of the limiting rod, and a rectangular groove is opened at the lower part of the rear end of the limiting rod.

[0007] Preferably, the stabilizing rod is movably inserted into the rectangular groove.

[0008] Preferably, the end of the transmission rod of the electric telescopic rod is oppositely arranged with the center of the valve plate.

[0009] Preferably, a limiting cavity is formed inside the connecting rod, and the limiting block is movably and limitedly arranged inside the limiting cavity.

[0010] Preferably, limiting insertion holes are formed through the front side of the connecting rod and the connecting handle rod, and a stabilizing rod is movably inserted into the limiting insertion holes.

[0011] Preferably, a support frame is fixedly connected to the lower end of the positioning plate.

[0012] Preferably, a second handle is fixedly connected to the outer side of the upper end of the handle rod.

[0013] Preferably, an insertion port is formed in the upper part of the maintenance gate valve, the handle rod and the valve plate are movably inserted into the insertion port, and the valve plate movably presses to seal the through port of the maintenance gate valve.

[0014] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art: For the overall structure provided by the embodiments of the present application, starting the electric telescopic rod causes the transmission rod to press the valve plate, thereby greatly increasing the sealing condition of the valve plate. And the inflatable tube is connected to an external inflating device, and the inflatable tube injects gas into the right side inside the maintenance gate valve. And a pressure sensor is provided on the right side inside the maintenance gate valve. As the gas is injected, the air pressure will increase through the seal of the valve plate inside. When the gas injection stops and the pressure value detected by the pressure sensor remains unchanged after a period of time, it means that the sealing performance of the valve plate is okay, indicating that the valve plate after maintenance has been repaired, thus making the repair of the valve plate more convenient; And the positioning frame is unfolded and sleeved on the outer side of the upper part of the maintenance gate valve. Through the transmission of the arc teeth and the rack, the limiting block moves forward, causing the stabilizing rod to extend, and then the stabilizing rod is inserted into the rectangular groove again, and the stabilizing rod is squeezed. At the same time, the other side of the stabilizing rod presses the inner wall of the maintenance gate valve, making the stabilizing rod more stable, and thus making the position of the electric telescopic rod more stable. Description of the Drawings

[0015] The drawings here are incorporated into the specification and constitute a part of this specification, showing the embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the overall structural diagram of the connection handle rod connection of the present invention; Figure 3 is the cross-sectional view of the connecting rod of the present invention; Figure 4 of the present invention Figure 2 is the enlarged view at position A in

[0018] In the figure: 1, support frame; 2, positioning plate; 3, inflation pipe; 4, maintenance gate valve; 5, insertion interface; 6, handle rod; 7, connecting plate; 8, first handle; 9, connecting rod; 10, connecting positioning rod; 11, positioning frame; 12, first positioning bolt; 13, second positioning bolt; 14, extrusion positioning rod; 15, connecting plate; 16, valve plate; 17, limiting rod; 18, limiting strip; 19, rectangular groove; 20, stabilizing rod; 21, fixing plate; 22, electric telescopic rod; 23, second handle; 24, limiting cavity; 25, limiting block; 26, rack; 27, arc tooth. Specific embodiments

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0020] The various embodiments of the present application may exist in the form of a range. It should be understood that the description in the form of a range is only for convenience and brevity and should not be construed as a rigid limitation on the scope of the present application. Therefore, it should be considered that the described range description has specifically disclosed all possible sub-ranges and single values within that range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within that range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. Additionally, whenever a numerical range is indicated in the present application, it means including any cited numbers (fractions or integers) within the indicated range. Unless otherwise specifically stated, all raw materials, reagents, instruments, and equipment, etc. used in the present application can be obtained through market purchases or can be prepared using existing equipment.

[0021] In this application, unless otherwise specified, the orientation terms such as "upper" and "lower" specifically refer to the drawing directions in the attached drawings. Additionally, in this application, terms such as "comprising" and "including" mean "including but not limited to". In this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. In this application, "and / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, or B exists alone. Where A and B can be singular or plural. In this application, "at least one" means one or more, and "multiple" means two or more. "At least one kind", "at least one of the following (items)" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can both represent: a, b, c, a - b (i.e., a and b), a - c, b - c, or a - b - c, where a, b, and c can be single or multiple respectively.

[0022] As Figures 1-4 shown: An embodiment of this application provides a rapid repair device for a welded gate valve, including: A repair gate valve 4, the flange of the repair gate valve 4 is fixedly connected to a positioning plate 2 through bolts, and an inflation pipe 3 is fixedly and sealingly inserted in the middle of the positioning plate 2; A connecting rod 9, both sides of the connecting rod 9 are symmetrically connected by rotating shafts to connecting positioning rods 10, the outer ends of the positioning rods 10 are fixedly connected with positioning frames 11, and the positioning frames 11 are extruded and positioned on both sides of the upper part of the repair gate valve 4; The front end of the connecting rod 9 is fixedly connected to a connecting handle rod 6, the lower end of the connecting handle rod 6 is connected to a connecting plate 15 through a pin shaft, the rear side of the lower end of the connecting plate 15 is connected to a valve plate 16 through bolts, the upper part of the front end of the connecting handle rod 6 is fixedly connected to a connecting plate 7, a limiting rod 17 is inserted in the middle of the connecting plate 7 in a limited movement manner, and the lower end of the limiting rod 17 is fixedly connected to an electric telescopic rod 22 through a fixing plate 21; A stabilizing rod 20, the rear end of the stabilizing rod 20 is fixedly connected to a limiting block 25, the limiting block 25 and the stabilizing rod 20 are movably inserted in the inside and the front side of the connecting rod 9, racks 26 are symmetrically arranged on both sides of the limiting block 25, and arc teeth 27 are meshed and connected to the outer sides of the racks 26, and the arc teeth 27 are arranged at the opposite ends of the connecting positioning rods 10.

[0023] As Figure 2As shown: The upper ends of the positioning frame 11 are respectively inserted with a first positioning bolt 12 and a second positioning bolt 13, and the lower end of the second positioning bolt 13 is rotatably connected with a pressing positioning rod 14 through a bearing.

[0024] Specifically: The fastening of the first positioning bolt 12 and the second positioning bolt 13 can position the positioning rod 10, and the second positioning bolt 13 can rotate to drive the pressing positioning rod 14 to displace downward, so as to press on the upper end surface of the maintenance gate valve 4.

[0025] As Figure 4 shown: The upper end of the limiting rod 17 is fixedly connected with a first handle 8, the outer side of the limiting rod 17 is fixedly connected with a limiting strip 18, and a rectangular groove 19 is opened at the lower part of the rear end of the limiting rod 17.

[0026] Specifically: The first handle 8 can conveniently adjust the position of the limiting rod 17.

[0027] As Figure 4 shown: The stabilizing rod 20 is movably inserted inside the rectangular groove 19.

[0028] Specifically: The height of the rectangular groove 19 is much larger than the diameter of the stabilizing rod 20.

[0029] As Figure 2 shown: The end of the transmission rod of the electric telescopic rod 22 is arranged opposite to the center of the valve plate 16.

[0030] Specifically: The electric telescopic rod 22 uses an existing telescopic rod on the market. The electric telescopic rod 22 can press the valve plate 16 to increase the sealing degree of the valve plate 16.

[0031] As Figure 3 shown: A limiting cavity 24 is opened inside the connecting rod 9, and a limiting block 25 is movably and limitedly arranged inside the limiting cavity 24.

[0032] Specifically: The limiting block 25 can displace back and forth inside the limiting cavity 24.

[0033] As Figure 3 shown: Limiting insertion holes are penetrated through the front side of the connecting rod 9 and the connecting handle rod 6, and the stabilizing rod 20 is movably inserted inside the limiting insertion holes.

[0034] Specifically: The stabilizing rod 20 can make the positioning of the limiting rod 17 more stable.

[0035] As Figure 1 shown: The lower end of the positioning plate 2 is fixedly connected with a support frame 1.

[0036] Specifically: The support frame 1 is for supporting and connecting the maintenance gate valve 4.

[0037] As Figure 2 shown: A second handle 23 is fixedly connected to the outer side of the upper end of the handle rod 6.

[0038] Specifically: The second handle 23 facilitates the overall handling of the maintenance equipment.

[0039] As Figure 1 shown: An insertion port 5 is opened in the upper part of the maintenance gate valve 4. The handle rod 6 and the valve plate 16 are movably inserted into the insertion port 5, and the valve plate 16 movably squeezes to seal the through port of the maintenance gate valve 4.

[0040] Specifically: The valve plate 16 uses an existing valve plate on the market, and the insertion port 5 is for inserting and extracting the valve plate 16.

[0041] Principle of use: When the equipment is in use, first disassemble the maintenance gate valve 4, disassemble the valve plate 16 of the maintenance gate valve 4, and install the repaired valve plate 16 on the connecting plate 15. Then rotate the positioning rod 10 relatively so that the two positioning rods 10 are combined together. At the same time, when the positioning rod 10 rotates, through the transmission of the arc teeth 27 and the rack 26, the limit block 25 moves backward, so that the stabilizing rod 20 is retracted, and the stabilizing rod 20 is disengaged from the rectangular groove 19. Then the position of the electric telescopic rod 22 can be adjusted by manually lifting the limit rod 17, or the electric telescopic rod 22 can be lifted for maintenance; After that, insert the repaired valve plate 16 into the through port of the maintenance gate valve 4 through the insertion port 5, and reverse the positioning rod 10 again so that the positioning frame 11 is sleeved on the outer side of the upper part of the maintenance gate valve 4, and the first positioning bolt 12 and the second positioning bolt 13 are tightened to squeeze the upper end face of the maintenance gate valve 4, thereby positioning the positioning rod 10. And through the transmission of the arc teeth 27 and the rack 26, the limit block 25 moves forward, so that the stabilizing rod 20 extends, and the stabilizing rod 20 is inserted into the rectangular groove 19 again, and the stabilizing rod 20 is squeezed. At the same time, the other side of the stabilizing rod 20 squeezes the inner wall of the maintenance gate valve 4, making the stabilizing rod 20 more stable, and thus making the position of the electric telescopic rod 22 more stable; After that, start the electric telescopic rod 22 so that the transmission rod squeezes the valve plate 16, which can greatly improve the sealing of the valve plate 16. And the inflatable tube 3 is connected to an external inflating device, and the inflatable tube 3 injects gas into the right side inside the maintenance gate valve 4. And a pressure sensor is provided on the right side inside the maintenance gate valve 4. As the gas is injected, the air pressure will increase through the sealing of the valve plate 16 inside. When the gas injection stops and the pressure value detected by the pressure sensor remains unchanged after a period of time, it means that the sealing of the valve plate 16 is okay, indicating that the repaired valve plate 16 has been repaired. Otherwise, it has not been repaired.

[0042] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined in the present application can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown in the present application, but rather to the broadest scope consistent with the principles and novel features claimed in the present application.

Claims

1. A rapid maintenance device for welding gate valves, characterized in that: include: A maintenance gate valve (4), wherein the flange of the maintenance gate valve (4) is fixedly connected to the positioning plate (2) by means of bolts, and an inflation pipe (3) is fixedly sealed and plugged into the middle of the positioning plate (2); A connecting rod (9), wherein both sides of the connecting rod (9) are symmetrically connected to connecting positioning rods (10) via a rotating shaft, and the outer ends of the positioning rods (10) are fixedly connected to positioning frames (11), and the positioning frames (11) are squeezed and positioned on both sides of the upper part of the maintenance gate valve (4); The front end of the connecting rod (9) is fixedly connected to a connecting handle rod (6), the lower end of the connecting handle rod (6) is connected to a connecting plate (15) via a pin shaft, the rear side of the lower end of the connecting plate (15) is connected to a valve plate (16) via a bolt, the upper front end of the connecting handle rod (6) is fixedly connected to a connecting plate (7), the middle part of the connecting plate (7) is limited and movably plugged into a limiting rod (17), and the lower end of the limiting rod (17) is fixedly connected to an electric telescopic rod (22) via a fixing plate (21); A stabilizing rod (20), the rear end of the stabilizing rod (20) being fixedly connected to a limiting block (25), the limiting block (25) and the stabilizing rod (20) being movably plugged into the interior and front side of the connecting rod (9), racks (26) being symmetrically provided on both sides of the limiting block (25), the outer sides of the racks (26) being meshingly connected to circular arc teeth (27), and the circular arc teeth (27) being provided at opposite ends of the connecting positioning rod (10).

2. The rapid maintenance equipment for a welded gate valve according to claim 1 is characterized in that: A first positioning bolt (12) and a second positioning bolt (13) are respectively inserted into the upper end of the positioning frame (11), and the lower end of the second positioning bolt (13) is rotatably connected to an extrusion positioning rod (14) via a bearing.

3. The rapid maintenance equipment for a welded gate valve according to claim 1 is characterized in that: The upper end of the limiting rod (17) is fixedly connected to a first handle (8), the outer side of the limiting rod (17) is fixedly connected to a limiting strip (18), and a rectangular groove (19) is formed at the lower rear end of the limiting rod (17).

4. The rapid maintenance equipment for a welded gate valve according to claim 1 is characterized in that: The stabilizing rod (20) is movably inserted into the rectangular groove (19).

5. The rapid maintenance equipment for a welded gate valve according to claim 1 is characterized in that: The transmission rod end of the electric telescopic rod (22) is arranged opposite to the center of the valve plate (16).

6. The rapid maintenance equipment for a welded gate valve according to claim 1 is characterized in that: A limiting cavity (24) is provided inside the connecting rod (9), and the limiting block (25) is movably limitedly disposed inside the limiting cavity (24).

7. The rapid maintenance equipment for a welded gate valve according to claim 1 is characterized in that: A limit insertion hole is formed through the front side of the connecting rod (9) and the connecting handle rod (6), and a stabilizing rod (20) is movably inserted into the limit insertion hole.

8. The rapid maintenance equipment for a welded gate valve according to claim 1 is characterized in that: The lower end of the positioning plate (2) is fixedly connected to a support frame (1).

9. The rapid maintenance equipment for a welded gate valve according to claim 1, characterized in that: A second handle (23) is fixedly connected to the outer side of the upper end of the handle rod (6).

10. The rapid maintenance equipment for a welded gate valve according to claim 1, characterized in that: The upper part of the maintenance gate valve (4) is provided with an insertion port (5), the handle rod (6) and the valve plate (16) are movably inserted into the insertion port (5), and the valve plate (16) movably squeezes and seals the opening of the maintenance gate valve (4).

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