Auxiliary mechanism for disassembling and assembling top-mounted ball valve seat supporting ring nut

Abstract

The utility model discloses an auxiliary mechanism for dismounting and mounting a top-mounted ball valve seat supporting ring nut, which comprises a base part, and a valve fixing groove and a pulling component are arranged on the base part; a valve fixing structure is arranged in the valve fixing groove; the pulling assembly comprises a fixed seat, a chain block and a wrench, and the chain block is fixedly arranged on the base part through the fixed seat; the chain block comprises a hand pulling chain and a lifting hook chain, and the lifting hook chain is detachably connected with the wrench; two inserting columns and two limiting columns are fixed to the end, not connected with the lifting hook chain, of the wrench, the two inserting columns are arranged in the width direction of the wrench in a spaced mode, the two limiting columns are arranged in the width direction of the wrench in a spaced mode, and the two limiting columns and the two inserting columns are arranged in the length direction of the wrench in a spaced mode. The tool is simple in structure and convenient to operate, the labor intensity for operating the valve seat supporting ring nut can be effectively reduced, and the assembling efficiency of the top-mounted ball valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve assembly technical field especially a kind of auxiliary mechanism for dismounting and mounting top-loading ball valve valve seat support ring nut. BACKGROUND

[0002] In the assembly process of top-loading ball valve, it is difficult to assemble the ball into the valve body, and the size between the end face of valve seat support ring and valve seat support ring nut assembly must be greater than the width of the ball flow channel direction; after assembly, the inner side end face of valve seat support ring nut is attached to the flat spring in natural state, the outer side of valve seat support ring nut is flush with the large end face of valve seat support ring, and valve seat support ring nut and valve seat support ring are fixed by right-handed thread cooperation. After the ball is assembled in place, the assembler needs to operate the valve seat support ring by wrench, and tightens or loosens the valve seat support ring nut by clockwise or counterclockwise wrenching, so that the flat spring supports the valve seat support ring and the valve seat to constantly close to the ball during the tightening process, and the valve seat support ring nut needs to be further tightened to make the spring deform appropriately after the valve seat is attached to the ball, so as to provide the necessary initial sealing specific pressure for the valve sealing.

[0003] For small and medium caliber top-loading ball valve, it is relatively easy to tighten or loosen the valve seat support ring nut by manual operation; but for large caliber top-loading ball valve, it is very difficult to operate manually due to the great elastic force generated by the deformation of flat spring, so it is common to increase a long sleeve on the wrench to increase the wrenching force, or multiple workers operate the wrench together. In general, manual operation cannot meet the dismounting and mounting requirements of valve seat support ring nut for large caliber top-loading ball valve, and the labor cost is high. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide an auxiliary mechanism for dismounting and mounting valve seat support ring nut of top-loading ball valve, which can effectively reduce the operation difficulty of valve seat support ring nut.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: an auxiliary mechanism for dismounting and mounting valve seat support ring nut of top-loading ball valve, comprising a base part, a valve fixing groove and a pulling assembly are arranged on the base part; a valve fixing structure is arranged in the valve fixing groove; the pulling assembly comprises a fixing seat, a hand-operated hoist and a wrench, and the hand-operated hoist is fixedly arranged on the base part through the fixing seat; the hand-operated hoist comprises a hand-operated chain and a hook chain, and the hook chain is detachably connected with the wrench; two plug-in columns and two limiting columns are fixed to one end of the wrench which is not connected with the hook chain, the two plug-in columns are arranged at intervals in the width direction of the wrench, the two limiting columns are arranged at intervals in the width direction of the wrench, and the two limiting columns and the two plug-in columns are arranged at intervals in the length direction of the wrench.

[0006] As the improvement of the above scheme: the fixed seat is a support seat fixed on the base part, the support seat comprises a connecting base and a connecting column, the connecting base is detachably connected with the base part through a plurality of bolts, the connecting column is fixed on the connecting base, and a plurality of reinforcing ribs are uniformly arranged around the outer periphery of the connecting column; the hand-operated hoist is detachably connected with the connecting column through a lifting ring.

[0007] As the improvement of the above scheme: the end of the wrench connected with the hook chain is provided with an ear, the ear is rotatably connected with the wrench through a rotating shaft, and the hook chain is detachably connected with the ear.

[0008] As the improvement of the above scheme: the end of the wrench not connected with the hook chain is provided with a reinforcing part, the reinforcing part is an integral structure with the wrench, and the plug-in column and the limiting column are both fixed on the reinforcing part.

[0009] As the improvement of the above scheme: the base part is a foundation, and the valve fixing groove is a pit arranged on the foundation.

[0010] The utility model discloses the beneficial effect is: the utility model discloses through setting up valve fixed groove on base part to accommodate and fix the top -loading ball valve of assembling, and through setting up the pulling assembly on base part to realize the operation of valve seat support ring nut on top -loading ball valve, and the pulling assembly is enlarged to manual pulling force through hand -operated hoist, and the fixed limit cooperation is formed on valve seat support ring nut with the wrench of special shape, can realize the rotation of valve seat support ring nut through the smaller manpower output, and the rotation direction of valve seat support ring nut can be changed through the simple change of the fixed direction of valve, and then the tightening or loosening of valve group support ring nut is realized, the utility model discloses simple structure, convenient operation can effectively reduce the artificial strength of operating valve seat support ring nut, improve the assembly efficiency of top -loading ball valve. ACCURACY OF DRAWINGS

[0011] Figure 1 It is the schematic view of installing valve seat support ring nut of top -loading ball valve by the utility model;

[0012] Figure 2 It is the schematic view of disassembling valve seat support ring nut of top -loading ball valve by the utility model;

[0013] Figure 3 It is the structure schematic view of wrench in the utility model;

[0014] Figure 4 It is the schematic view of the cooperation of wrench and valve seat support ring nut of top -loading ball valve;

[0015] Figure 5 It is the schematic view of the cooperation of wrench and valve seat support ring nut of top -loading ball valve.

[0016] Marked in the figure: 100-base, 200-valve fixed groove, 300-fixed seat, 310-connection base, 320-connection column, 330-stiffening rib, 340-sling, 400-hand chain block, 410-hand chain, 420-sling chain, 500-wrench, 510-insertion column, 520-limiting column, 530-lifting lug, 540-stiffening part, 600-top loading ball valve, 610-valve seat support ring nut. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the present application, the present application will be further described below in conjunction with the drawings.

[0018] In the description of the present application, it should be pointed out that the terms "front", "back", "left", "right", "up", "down", "inside" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and do not indicate or imply that the devices or parts referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0019] As shown in Figure 1 and Figure 2 The auxiliary mechanism for disassembling and assembling the valve seat support ring nut of the top loading ball valve disclosed by the present application takes the base part 100 as the installation and fixing basis of the whole mechanism, and the valve fixed groove 200 and the pulling assembly are arranged on the base part 100; the valve fixed groove 200 is used for accommodating and fixing the top loading ball valve to be assembled, and the pulling assembly is used for amplifying the manual pulling force and outputting it to the valve seat support ring nut 610 of the top loading ball valve 600 to make it rotate, so as to realize the fastening or loosening of the valve seat support ring nut 610 on the top loading ball valve 600.

[0020] Specifically, as shown in Figure 1 and Figure 2 The valve fixed groove 200 in the present application is a lower groove type structure arranged on the base part 100, and a valve fixing structure is arranged in the valve fixed groove 200, which is not limited here, and the fixing structure of the conventional compression type and locking type can be used, as long as the top loading ball valve 600 can be fixed in the valve fixed groove 200 so that it is not easy to shake under stress. In order to facilitate the installation of the pulling assembly and the construction of the valve fixed groove 200, the ground foundation is directly used as the base part 100 in the present application, and the pit is dug on the foundation as the valve fixed groove 200; the base part 100 does not need to be produced separately, and the construction operation can be directly carried out on site, which has a positive promoting effect on reducing production cost and improving production efficiency.

[0021] Specifically, as shown inFigure 1 and Figure 2 As shown, the pulling assembly in this utility model consists of a fixed base 300, a hand chain hoist 400, and a wrench 500. The fixed base 300 serves as the mounting and fixing component of the hand chain hoist 400 on the base 100, fixing the hand chain hoist 400 to the base 100. The hand chain hoist 400 is an existing device, which has a hand chain 410, a hook chain 420, and a gearbox with a brake. The hook chain 420 of the hand chain hoist 400 is detachably connected to the wrench 500. The hand chain 410 serves as the force-bearing component for the worker to grip and pull. The gearbox amplifies the worker's output force and transmits it to the hook chain 420, which in turn transmits it to the wrench 500, pulling the wrench 500 fixed to the valve seat support ring nut 610, ultimately causing the valve seat support ring nut 610 to rotate. The pulling component of this utility model amplifies the force applied by the worker pulling the chain 410 through the hand chain hoist 400, and then transmits the amplified force to the wrench 500 to apply to the valve seat support ring nut 610. The valve seat support ring nut 610 of the large-diameter top-mounted ball valve 600 can be rotated by manually outputting a small force. Only two workers need to work together to easily complete the operation of the valve seat support ring nut 610, thereby effectively reducing the assembly difficulty and improving the assembly efficiency.

[0022] When tightening the valve seat support ring nut 610, as follows Figure 1 As shown, the gearbox of the hand chain hoist 400 is connected to the fixed base 300, the wrench 500 is fixed to the valve seat support ring nut 610, and the wrench 500 is connected to the hook chain 420 of the hand chain hoist 400. The first worker then... Figure 1 Pulling one of the chains in the hand chain 410 in the direction shown by F will cause the hook chain 420 to pull the wrench 500 clockwise, causing the valve seat support ring nut 610 to rotate clockwise. The valve seat support ring nut 610 gradually tightens on the top-mounted ball valve 600. When the wrench 500 rotates to its right limit position, stop pulling the hand chain 410 and instead pull the other chain in the hand chain 410 in the direction shown by F. At this time, the taut hook chain 420 will gradually loosen. Once the hook chain 420 is loosened to an appropriate degree... The second worker separates the hook chain 420 from the wrench 500 and removes the wrench 500 from the valve seat support ring nut 610. Then, the wrench 500 is fixed to the left starting position on the valve seat support ring nut 610 before the hook chain 420 is reconnected to the wrench 500. The first worker then operates the hand-pulled chain 410 to pull the wrench 500 clockwise. After repeating this several times, the valve seat support ring nut 610 drives the plate spring to deform sufficiently, providing the necessary initial sealing pressure for the top-mounted ball valve 600.

[0023] When loosening the valve seat support ring 610, as Figure 2 As shown, in Figure 1 Based on the orientation, rotate the top-mounted ball valve 600 180° within the valve fixing groove 200 and then fix it. Fix the wrench 500 to the valve seat support ring nut 610, and fix the position as follows: Figure 1 The fixed positions are the same, and the wrench 500 is connected to the hook chain 420 of the hoist 400, and the first worker moves along... Figure 2 Pulling one of the chains in the hand chain 410 in the direction shown by F will cause the hook chain 420 to pull the wrench 500 counterclockwise, causing the valve seat support ring nut 610 to rotate counterclockwise. The valve seat support ring nut 610 will gradually loosen on the top-mounted ball valve 600. When the wrench 500 reaches its left limit position, stop pulling the hand chain 410 and instead pull the other chain in the hand chain 410 in the direction shown by F. This will gradually loosen the taut hook chain 420. After the hook chain 420 is loosened to the appropriate degree, the second worker separates the hook chain 420 from the wrench 500 and moves the wrench 500 diagonally down from the valve seat support ring nut 610. Then, the wrench 500 is fixed at the starting position on the right side of the valve seat support ring nut 610, and the hook chain 420 is reconnected to the wrench 500. The first worker then operates the hand-pulled chain 410 to pull the wrench 500 counterclockwise. After repeating this several times, the valve seat support ring nut 610 can be loosened to the degree required for disassembly.

[0024] like Figures 3 to 5As shown, the fixing between the wrench 500 and the valve seat support ring nut 610 in the utility model relies on the plug-in column 510 and the limiting column 520 arranged on the wrench 500 to realize. The plug-in column 510 and the limiting column 520 are fixed at the end of the wrench 500 not connected with the hook chain 420, the plug-in column 510 and the limiting column 520 are both cylindrical bodies, and the number of both is two; the two plug-in columns 510 are arranged at intervals in the width direction of the wrench 500, the two limiting columns 520 are arranged at intervals in the width direction of the wrench 500, and the two limiting columns 520 and the two plug-in columns 510 are arranged at intervals in the length direction of the wrench 500. When the wrench 500 is connected and fixed with the valve seat support ring nut 610, the two plug-in columns 510 of the wrench 500 are respectively inserted into the two adjacent holes on the valve seat support ring nut 610, and the two limiting columns 520 of the wrench 500 abut on the outer circular surface of the valve seat support ring nut 610, so that the valve seat support ring nut 610 is limited in multiple directions through the cooperation of the two limiting columns 520 and the two plug-in columns 510, thereby the valve seat support ring nut 610 can be rotated together by the rotation of the wrench 500, the rotation of the valve seat support ring nut 610 is stable in the operation process, and the adverse effect of the impact force of pure manual wrenching on the thread pair is overcome; meanwhile, the disassembly and assembly between the wrench 500 and the valve seat support ring nut 610 are facilitated. In addition, since the end of the wrench 500 provided with the plug-in column 510 and the limiting column 520 directly acts on the valve seat support ring nut 610, the stress of this end is large, in order to improve the strength of this end of the wrench 500, as shown in the utility model, the end of the wrench 500 not connected with the hook chain 420 is provided with a reinforcing portion 540, the overall size of the reinforcing portion 540 is larger than the size of other parts of the wrench 500, and the reinforcing portion 540 is arranged in an integral structure with the wrench 500 to further improve the strength. Figures 3 to 5 As shown in the utility model, the end of the wrench 500 not connected with the hook chain 420 is provided with a reinforcing portion 540, the overall size of the reinforcing portion 540 is larger than the size of other parts of the wrench 500, and the reinforcing portion 540 is arranged in an integral structure with the wrench 500 to further improve the strength.

[0025] As shown in the utility model, the end of the wrench 500 not connected with the hook chain 420 is provided with a reinforcing portion 540, the overall size of the reinforcing portion 540 is larger than the size of other parts of the wrench 500, and the reinforcing portion 540 is arranged in an integral structure with the wrench 500 to further improve the strength. Figure 1 and Figure 2 As shown in the utility model, the end of the wrench 500 not connected with the hook chain 420 is provided with a reinforcing portion 540, the overall size of the reinforcing portion 540 is larger than the size of other parts of the wrench 500, and the reinforcing portion 540 is arranged in an integral structure with the wrench 500 to further improve the strength.

[0026] As shown in the utility model, the end of the wrench 500 not connected with the hook chain 420 is provided with a reinforcing portion 540, the overall size of the reinforcing portion 540 is larger than the size of other parts of the wrench 500, and the reinforcing portion 540 is arranged in an integral structure with the wrench 500 to further improve the strength. Figure 1 and Figure 2As shown in the utility model, the fixing seat 300 is a support seat fixed on the base part 100, the support seat comprises a connecting base 310 and a connecting column 320, the connecting column 320 and the connecting base 310 can be directly made of production waste materials on site to reduce production cost, for example, the connecting column 320 can be made of pipe waste material, the connecting base 310 can be made of plate waste material, and the two are directly welded and fixed; the connecting base 310 is detachably connected with the base part 100 through a plurality of bolts, the connecting column 320 is fixed on the connecting base 310, and a plurality of reinforcing ribs 330 are uniformly arranged around the outer periphery of the connecting column 320 to improve the fixing strength of the fixing seat 300 on the base part 100; the chain hoist 400 is detachably connected with the connecting column 320 through a lifting ring 340, a threaded section can be arranged at one end of the lifting ring 340, the end of the lifting ring 340 is passed through the through hole on the connecting column 320 and then fixed through a nut, and the lifting ring 340 and the hook of the chain hoist 400 form hooking cooperation.

Claims

1. A mechanism for assisting in the removal of a top entry ball valve seat support ring nut, characterized by: The utility model provides a valve door fixing groove (200) and a pulling assembly are equipped on base part (100), the valve door fixing groove (200) is equipped with valve door fixing structure, the pulling assembly includes fixed seat (300), hand chain block (400) and spanner (500), and hand chain block (400) is fixedly arranged on base part (100) through fixed seat (300), hand chain block (400) includes hand pulling chain (410) and hook chain (420), and hook chain (420) is detachably connected with spanner (500), two plug-in columns (510) and two limit posts (520) are fixed to the end of spanner (500) not being connected with hook chain (420), two plug-in columns (510) are arranged at intervals in the width direction of spanner (500), two limit posts (520) are arranged at intervals in the width direction of spanner (500), and two limit posts (520) and two plug-in columns (510) are arranged at intervals in the length direction of spanner (500).

2. The auxiliary mechanism for disassembling the top-loading ball valve seat support ring nut according to claim 1, characterized in that: The fixed seat (300) is a support seat fixed on the base part (100), and the support seat comprises a connecting base (310) and a connecting column (320), the connecting base (310) is detachably connected with the base part (100) through a plurality of bolts, the connecting column (320) is fixed on the connecting base (310), and a plurality of reinforcing ribs (330) are uniformly arranged around the outer periphery of the connecting column (320), the hand chain block (400) is detachably connected with the connecting column (320) through a lifting ring (340).

3. The auxiliary mechanism for disassembling the top-loading ball valve seat support ring nut according to claim 1, characterized in that: The end of the spanner (500) connected with the hook chain (420) is provided with an ear (530), the ear (530) is rotatably connected with the spanner (500) through a rotating shaft, and the hook chain (420) is detachably connected with the ear (530).

4. The auxiliary mechanism for disassembling the top-loading ball valve seat support ring nut according to claim 1, characterized in that: The end of the spanner (500) not connected with the hook chain (420) is provided with a reinforcing part (540), and the reinforcing part (540) and the spanner (500) are an integral structure, the plug-in column (510) and the limit post (520) are both fixed on the reinforcing part (540).

5. The auxiliary mechanism for disassembling the top-loading ball valve seat support ring nut according to claim 1, characterized in that: The base part (100) is a foundation, and the valve door fixing groove (200) is a pit arranged on the foundation.

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