CN112901815A - Ball valve convenient to maintain and maintenance method thereof - Google Patents

Ball valve convenient to maintain and maintenance method thereof Download PDF

Info

Publication number
CN112901815A
CN112901815A CN202110195456.8A CN202110195456A CN112901815A CN 112901815 A CN112901815 A CN 112901815A CN 202110195456 A CN202110195456 A CN 202110195456A CN 112901815 A CN112901815 A CN 112901815A
Authority
CN
China
Prior art keywords
plate
top end
valve
maintenance
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110195456.8A
Other languages
Chinese (zh)
Inventor
游和平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202110195456.8A priority Critical patent/CN112901815A/en
Publication of CN112901815A publication Critical patent/CN112901815A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0626—Easy mounting or dismounting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
    • F16K43/001—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose an auxiliary valve being actuated independently of the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

The invention relates to the technical field of valves, in particular to a ball valve convenient to maintain and a maintenance method thereof, the ball valve comprises a valve main body, the left end and the right end of the circumferential inner wall of the valve main body are respectively sleeved with a water inlet pipe and a water outlet pipe, a connecting piece is connected between flanges, the top end of a sliding rail is provided with a sliding block, the circumferential inner wall of a sleeve is sleeved with a control rod, the circumferential inner wall of the valve main body is provided with a first limiting plate, the lower area of the first limiting plate is contacted with the circumferential side wall of a lower sealing plate, the upper area of the first limiting plate is provided with an upper sealing block, a rotating ball is arranged between the upper sealing block and the lower sealing block, the upper area and the lower area of the circumferential outer wall of the rotating ball are both provided with rubber rings, the top end of a valve screw rod penetrates through a fixing plate and is in threaded connection with the, the practicability is higher.

Description

Ball valve convenient to maintain and maintenance method thereof
Technical Field
The invention relates to the technical field of valves, in particular to a ball valve convenient to maintain and a maintenance method thereof.
Background
It is known that, in a ball valve, a valve whose opening and closing member is driven by a valve rod and rotates around the axis of the ball valve can also be used for fluid regulation and control, wherein a strong shearing force is provided between a V-shaped ball core of a hard seal V-shaped ball valve and a metal valve seat of a build-up welding hard alloy, the ball valve is particularly suitable for media containing fiber, tiny solid particles and the like, a multi-way ball valve can flexibly control the confluence, diversion and flow direction switching of the media on a pipeline, and simultaneously, any channel can be closed to connect the other two channels, and the valve of the type is generally horizontally installed in the pipeline.
Reference CN209430827U discloses a ball valve convenient to change case, including the valve body, the first mount pad of one side fixedly connected with of valve body, and the opposite side fixedly connected with second mount pad of valve body, the mounting hole has been seted up to the lateral wall of second mount pad, the top fixedly connected with fixed disk of valve body, and the outside fixed mounting of valve body has fixing device, the top of fixed disk is provided with sealing device. When the valve core device needs to be replaced, the first fixing screw is unscrewed, the sealing disc is taken out from the valve body, the valve core device can be replaced, and after the replacement is finished, the first fixing screw is screwed down, so that the valve body can be closed. However, when the ball core of the device is replaced, the valve at the input end needs to be closed, so that the transmission efficiency of liquid is influenced; and when changing the accessory, a large amount of liquid in the pipeline runs off, can cause a large amount of wastes, has the liquid that pollutes even, can lead to the pollution of environment, leads to the practicality lower.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the ball valve which has lower influence on liquid transmission efficiency, reduces the loss of liquid in the pipeline when the fittings are replaced and has higher practicability and is convenient to maintain and the maintenance method thereof.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a ball valve convenient to maintain comprises a valve main body, wherein a water inlet pipe and a water outlet pipe are respectively sleeved at the left end and the right end of the circumferential inner wall of the valve main body, two flanges are symmetrically arranged at the left end and the right end of the valve main body, a first flange is arranged on the inner side wall of each second flange, a fixing screw rod is arranged inside each first flange, penetrates through the first flange and the second flange and is provided with a fixing nut in a threaded manner, a connecting piece is connected between the first flanges, a first round hole is formed in the top end of the connecting piece, an upper maintenance plate is arranged at the top end of the first round hole, a second fixing screw is arranged at the top end of the upper maintenance plate, the bottom end of each second fixing screw penetrates through the upper maintenance plate and is in threaded connection with the top end of the connecting piece, a sealing plate is connected between the connecting pieces, and an upper, the top end of the upper maintenance plate is symmetrically provided with connecting rods, the top end of each connecting rod is provided with a fixed plate, the inner bottom wall of the valve main body is provided with a second round hole, a lower maintenance pipe is arranged in the second round hole, the bottom end of the lower maintenance pipe is covered with a lower cover plate, the bottom end of the lower cover plate is provided with a first fixing screw, the top end of the first fixing screw penetrates through the lower cover plate and extends downwards to the interior of the maintenance pipe, the top end of the lower cover plate is provided with a lower sealing block which is symmetrical to the upper sealing block, the inner bottom wall of the valve main body is provided with a sliding rail which is positioned on the left side of the second flange, the top end of the sliding rail is provided with a sliding block, the top end of the sliding block is provided with a connecting block through a connecting rod, the right end of the, the top end of the valve main body is provided with a third round hole, a sleeve is arranged in the third round hole, a control rod is sleeved on the circumferential inner wall of the sleeve, the top end of the control rod penetrates through the sleeve and extends to the outside of the valve main body, a pressing handle is arranged at the top end of the control rod, a sliding plate is arranged at the top end of the connecting block, a third limiting plate is arranged at the left end of the sliding plate, a plurality of balls are arranged at the bottom end of the control rod and are in sliding fit with the sliding plate, the circumferential inner wall of the valve main body is provided with a first annular limiting plate, the right end of the first spring is in contact with the first limiting plate, the first limiting plates are positioned at the left side and the right side of the upper sealing plate, a rotating ball is arranged between the upper sealing block and the lower sealing block, rubber rings are arranged in the upper region and the lower region of the circumferential, the rotary ball is provided with a fourth round hole in the center in a penetrating mode, the top end of the rotary ball is provided with a valve screw, the top end of the valve screw penetrates through the sealing plate and extends to the outside of the upper maintenance plate, the top end of the valve screw penetrates through the fixing plate and is in threaded connection with the fixing plate, and the top end of the valve screw is provided with an adjusting handle.
Preferably, the left end and the right end of the circumferential outer wall of the valve main body are respectively sleeved with a locking hoop.
Preferably, the upper region and the lower region of the left end and the upper region and the lower region of the right end of each spring one are provided with a second limiting plate, and the right ends of the second limiting plate and the connecting block are in contact with the left end of the first limiting plate.
Preferably, a second spring is arranged on the circumferential outer wall of the control rod, and the top end and the bottom end of the second spring are respectively contacted with the bottom end of the pressing handle and the top end of the valve main body.
Preferably, a plurality of fixing rods are connected between the bottom end of the upper access panel and the sealing plate, a third spring is sleeved on the circumferential outer wall of each fixing rod, and the top end and the bottom end of the third spring are respectively contacted with the bottom end of the upper access panel and the top end of the sealing plate.
Preferably, a positioning nut is arranged at the top end of the adjusting handle, and the positioning nut is fixedly connected with the adjusting handle.
Preferably, the bottom end of the rotating ball is rotatably connected with a connecting shaft through a fixing cap, and the connecting shaft is rotatably matched with the top end of the lower sealing block.
A method of servicing a ball valve for ease of servicing, comprising the steps of:
the method comprises the following steps that firstly, a water inlet pipe is communicated with a water outlet pipe through a valve main body, and a ball valve is controlled to be opened and closed through rotating an adjusting handle;
step two, when in maintenance, the control rod is pressed downwards, the connecting block moves rightwards under the pressure of the control rod, and the pipeline is blocked through the matching among the connecting block, the blocking block and the first limiting plate, so that liquid leakage is prevented, and maintenance is carried out;
step three, when small-sized leakage occurs, opening the ball valve through the lower access panel or the upper access panel, and replacing damaged parts inside;
step four, when large-scale leakage occurs, the first flange and the second flange are separated through the matching between the fixing screw and the fixing nut, and parts with larger interior parts are replaced or maintained;
and step five, after the maintenance is finished, the control rod is lifted, so that the blocking block is far away from the first limiting plate, and the valve is communicated.
(III) advantageous effects
Compared with the prior art, the invention provides the ball valve convenient to maintain, which has the following beneficial effects:
1. when the ball valve convenient to maintain is used, the water inlet pipe and the water outlet pipe are fixed through the lock hoop, and the tightness among the ball valve, the water inlet pipe and the water outlet pipe is improved; the sealing performance of the ball valve is improved through the matching between the upper sealing block and the lower sealing block, and the stability between the rotating ball and the first limiting plate is improved through the matching between the connecting blocks increased by the sealing plate;
2. the ball valve is convenient to overhaul in a large scale through the matching between the first flange and the second flange, and the small-scale leakage phenomenon is convenient to overhaul through the matching between the upper overhaul plate and the lower overhaul plate;
3. when the valve is small-sized to be overhauled, the valve is blocked through the matching between the first blocking block and the first limiting plate, outward leakage of liquid is reduced, the first blocking block and the first limiting plate are separated through the first spring by the connecting block and the first blocking block in normal use, the liquid passes through the first limiting plate, a main valve does not need to be closed during maintenance, and meanwhile leakage of residual liquid in a pipeline is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the closed state of the ball valve of the present invention;
FIG. 3 is a schematic view of the inspection state of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 1 at A;
FIG. 5 is an enlarged view of the structure of FIG. 1 at B;
FIG. 6 is an enlarged view of the structure of FIG. 1 at C;
FIG. 7 is an enlarged view of FIG. 1 at D according to the present invention;
FIG. 8 is an enlarged view of E of FIG. 1 according to the present invention.
In the figure: 1. a valve body; 2. a water outlet pipe; 3. a lower maintenance pipe; 4. a lower seal block; 5. a lower cover plate; 6. a first fixing screw; 7. a first flange; 8. a second flange; 9. fixing a nut; 10. fixing the screw rod; 11. a locking band; 12. a water inlet pipe; 13. a sleeve; 14. rotating the ball; 15. a rubber ring; 16. a first limiting plate; 17. an upper sealing block 18, a connecting rod; 19. a fixing plate; 20. a valve screw; 21. an adjusting handle; 22. positioning a nut; 23. a ball bearing; 24. a slide plate; 25. a first spring; 26. a second limiting plate; 27. a second spring; 28. a control lever; 29. a pressing handle; 30. a fixing cap; 31. a connecting shaft; 32. a third spring; 33. fixing the rod; 34. an upper maintenance plate; 35. a second fixing screw; 36. a slider; 37. a slide rail; 38. a connecting rod; 39. connecting blocks; 40. a third limiting plate; 41. a sealing plate; 42. blocking; 43. a connecting member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-8, a ball valve convenient for maintenance comprises a valve body 1, a water inlet pipe 12 and a water outlet pipe 2 are respectively sleeved at the left end and the right end of the circumferential inner wall of the valve body 1, flanges 8 are symmetrically arranged at the left end and the right end of the valve body 1, a flange I7 is arranged on the inner side wall of each flange II 8, a fixing screw 10 is arranged inside each flange I7, the fixing screw 10 penetrates through the flange I7 and the flange II 8 and is provided with a fixing nut 9 in a threaded manner, a connecting piece 43 is connected between each flange I7, a first round hole is formed in the top end of the connecting piece 43, an upper maintenance plate 34 is arranged at the top end of the first round hole, a fixing screw II 35 is arranged at the top end of the upper maintenance plate 34, the bottom end of each fixing screw II 35 penetrates through the upper maintenance plate 34 and is in threaded connection with the top end of the connecting, the lower end of the sealing plate 41 is provided with an upper sealing block 17, the top end of the upper maintenance plate 34 is symmetrically provided with connecting rods 18, the top end of each connecting rod 18 is provided with a fixing plate 19, the inner bottom wall of the valve main body 1 is provided with a second round hole, a lower maintenance pipe 3 is arranged in the second round hole, the bottom end of the lower maintenance pipe 3 is covered with a lower cover plate 5, the bottom end of the lower cover plate 5 is provided with a first fixing screw 6, the top end of the first fixing screw 6 penetrates through the lower cover plate 5 and extends towards the inside of the lower maintenance pipe 3, the top end of the lower cover plate 5 is provided with a lower sealing block 4 which is symmetrical with the upper sealing block 17, the inner bottom wall of the valve main body 1 is provided with a sliding rail 37, the sliding rail 37 is positioned at the left side of the second flange 8, the top end of the sliding rail 37 is provided with a sliding block 36, the top end of the sliding, the top end of the valve main body 1 is provided with a third round hole, the third round hole is internally provided with a sleeve 13, the circumferential inner wall of the sleeve 13 is sleeved with a control rod 28, the top end of the control rod 28 penetrates through the sleeve 13 and extends to the outside of the valve main body 1, the top end of the control rod 28 is provided with a pressing handle 29, the top end of the connecting block 39 is provided with a sliding plate 24, the left end of the sliding plate 24 is provided with a third limit plate 40, the bottom end of the control rod 28 is provided with a plurality of balls 23, each ball 23 is in sliding fit with the sliding plate 24, the circumferential inner wall of the valve main body 1 is provided with two annular first limit plates 16, the right end of the spring one 25 is contacted with the first limit plate 16, the two first limit plates 16 are positioned at the left side and the right side of the upper sealing plate 17, a rotating ball 14 is arranged between the upper sealing block 17 and the lower sealing block 4, the, the center of the rotating ball 14 is provided with a fourth round hole in a penetrating manner, the top end of the rotating ball 14 is provided with a valve screw 20, the top end of the valve screw 20 penetrates through the sealing plate 41 and extends to the outside of the upper access panel 34, the top end of the valve screw 20 penetrates through the fixing plate 19 and is in threaded connection with the fixing plate 19, and the top end of the valve screw 20 is provided with an adjusting handle 21.
The ball valve convenient for maintenance is characterized in that the water inlet pipe 12 and the water outlet pipe 2 are fixed through the lock hoop 11 to increase the tightness between the ball valve and the water inlet pipe 12 and the water outlet pipe 2 when the ball valve is used, the tightness of the ball valve is increased through the matching between the upper sealing block 17 and the lower sealing block 4, the large-scale maintenance of the ball valve is facilitated through the matching between the flange I7 and the flange II 8, the maintenance of small-scale leakage phenomena is facilitated through the matching between the upper maintenance plate 34 and the lower maintenance plate, meanwhile, when the ball valve is used for small-scale maintenance, the valve is blocked through the matching between the blocking block 42 and the limiting plate I16 to reduce outward leakage of liquid, the blocking block 42 and the limiting plate I16 are separated through the spring I25 by the connecting block 39 and the blocking block 42 when the ball valve is normally used, the liquid passes through the limiting plate I16, and the service life of the ball valve is prolonged through the matching between the rubber ring 15, and the maintenance of the ball valve is facilitated through the matching among the first flange 7, the second flange 8, the upper maintenance plate 34 and the lower maintenance plate, and the stability between the rotary ball 14 and the first limit plate 16 is increased through the matching among the sealing plate 41 and the connecting block 39.
Specifically, the left end and the right end of the circumferential outer wall of the valve body 1 are respectively sleeved with the locking hoop 11, so that the tightness of the valve body 1 is improved
Specifically, the upper region and the lower region of the left end and the upper region and the lower region of the right end of each spring one 25 are provided with a second limit plate 26, and the right end of each second limit plate 26 and the connecting block 39 is in contact with the left end of the first limit plate 16, so that the spring one 25 is prevented from blocking the channel in normal use.
Specifically, the circumferential outer wall of the control rod 28 is provided with a second spring 27, and the top end and the bottom end of the second spring 27 are respectively in contact with the bottom end of the pressing handle 29 and the top end of the valve main body 1, so that the connecting block 39 is prevented from sliding rightwards to block the channel in normal use.
Specifically, a plurality of fixing rods 33 are connected between the bottom end of the upper access panel 34 and the sealing plate 41, a third spring 32 is sleeved on the circumferential outer wall of each fixing rod 33, the top end and the bottom end of the third spring 32 are respectively in contact with the bottom end of the upper access panel 34 and the top end of the sealing plate 41, vibration of the sealing plate 41 and the rotary ball 14 during relative movement is relieved, and the service life is prolonged.
Specifically, the top end of the adjusting handle 21 is provided with a positioning nut 22, and the positioning nut 22 and the adjusting handle 21 are fixedly connected to prevent the adjusting handle 21 from being separated from the valve screw 20.
Specifically, the bottom end of the rotating ball 14 is rotatably connected with a connecting shaft 31 through a fixing cap 30, and the connecting shaft 31 is rotatably matched with the top end of the lower sealing block 4, so that the stability of the rotating ball 14 and the upper sealing block 17 and the lower sealing block 4 is improved.
A method of servicing a ball valve for ease of servicing, comprising the steps of:
firstly, communicating a water inlet pipe 12 with a water outlet pipe 2 through a valve main body 1, and controlling the opening and closing of a ball valve through an adjusting handle 21;
step two, during maintenance, the control rod 28 is pressed downwards, the connecting block 39 moves rightwards under the pressure of the control rod 28, and the pipeline is blocked through the matching among the connecting block 39, the blocking block 42 and the first limiting plate 16, so that liquid leakage is prevented, and maintenance is performed;
step three, when small leakage occurs, opening the ball valve through the lower access panel or the upper access panel 34, and replacing damaged parts inside;
step four, when large-scale leakage occurs, the first flange 7 and the second flange 8 are separated through the matching between the fixing screw rod 10 and the fixing nut 9, and parts with larger interior parts are replaced or maintained;
and step five, after the maintenance is finished, the control rod 28 is lifted, so that the blocking block 42 is far away from the first limiting plate 16, and the valve is communicated.
In conclusion, when the ball valve convenient to maintain is used, the water inlet pipe 12 is communicated with the water outlet pipe 2 through the valve main body 1, the opening and closing of the ball valve are controlled through the adjusting handle 21, the ball valve is observed when small leakage occurs, the ball valve is opened through the lower maintenance plate or the upper maintenance plate 34, internal damaged parts are replaced, when large leakage occurs, the first flange 7 and the second flange 8 are separated through the matching between the fixing screw rod 10 and the fixing nut 9, the internal larger parts are replaced or maintained, when small leakage occurs, a pipeline is blocked through the matching between the connecting block 39, the blocking block 42 and the first limiting plate 16, liquid leakage is prevented, and after maintenance is completed, the control rod 28 ascends to enable the blocking block 42 to be far away from the first limiting plate 16, so that the valve is communicated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The ball valve convenient to maintain comprises a valve main body (1) and is characterized in that a water inlet pipe (12) and a water outlet pipe (2) are sleeved at the left end and the right end of the circumferential inner wall of the valve main body (1) respectively, two flanges (8) are symmetrically arranged at the left end and the right end of the valve main body (1), a first flange (7) is arranged on the inner side wall of each second flange (8), a fixing screw (10) is arranged inside each first flange (7), the fixing screw (10) penetrates through the first flange (7) and the second flange (8) and is screwed with a fixing nut (9), a connecting piece (43) is connected between the first flanges (7), a first round hole is formed in the top end of the connecting piece (43), an upper maintenance plate (34) is arranged at the top end of the first round hole, and a second fixing screw (35) is arranged at the top end of the upper maintenance plate (34), the bottom end of each second fixing screw (35) penetrates through an upper maintenance plate (34) and is in threaded connection with the top ends of the connecting pieces (43), a sealing plate (41) is connected between the connecting pieces (43), an upper sealing block (17) is arranged at the lower end of the sealing plate (41), connecting rods (18) are symmetrically arranged at the top ends of the upper maintenance plate (34), a fixing plate (19) is arranged at the top end of each connecting rod (18), a second round hole is formed in the inner bottom wall of the valve main body (1), a lower maintenance pipe (3) is arranged in the second round hole, a lower cover plate (5) is covered at the bottom end of the lower maintenance pipe (3), a first fixing screw (6) is arranged at the bottom end of the lower cover plate (5), the top end of the first fixing screw (6) penetrates through the lower cover plate (5) and extends towards the inside of the lower maintenance pipe (3), and a lower block (4) which is symmetrical to the upper sealing block (17) is arranged at the top end of, the inner bottom wall of the valve main body (1) is provided with a sliding rail (37), the sliding rail (37) is located on the left side of the second flange (8), a sliding block (36) is arranged at the top end of the sliding rail (37), a connecting block (39) is arranged at the top end of the sliding block (36) through a connecting rod (38), a blocking block (42) is arranged at the right end of the connecting block (39), a first spring (25) is arranged in an upper region and a lower region of the right end of the blocking block (42), a third round hole is formed in the top end of the valve main body (1), a sleeve (13) is arranged in the third round hole, a control rod (28) is sleeved on the inner circumferential wall of the sleeve (13), the top end of the control rod (28) penetrates through the sleeve (13) and extends to the outer portion of the valve main body (1), and a handle (29) is arranged, the top end of the connecting block (39) is provided with a sliding plate (24), the left end of the sliding plate (24) is provided with a third limiting plate (40), the bottom end of the control rod (28) is provided with a plurality of balls (23), the balls (23) are in sliding fit with the sliding plate (24), the circumferential inner wall of the valve main body (1) is provided with a first annular limiting plate (16), the right end of the first spring (25) is in contact with the first limiting plate (16), the two first limiting plates (16) are positioned on the left side and the right side of the upper sealing plate (17), a rotating ball (14) is arranged between the upper sealing block (17) and the lower sealing block (4), the upper area and the lower area of the circumferential outer wall of the rotating ball (14) are both provided with rubber rings (15), the rubber rings (15) are in contact with the inner side walls of the first limiting plates (16), and the center of the rotating ball (14) is provided, the top end of the rotating ball (14) is provided with a valve screw rod (20), the top end of the valve screw rod (20) penetrates through the sealing plate (41) and extends to the outside of the upper access panel (34), the top end of the valve screw rod (20) penetrates through the fixing plate (19) and is connected with the fixing plate (19) in a threaded mode, and the top end of the valve screw rod (20) is provided with an adjusting handle (21).
2. A ball valve convenient for maintenance according to claim 1, characterized in that the left end and the right end of the circumferential outer wall of the valve body (1) are sleeved with locking hoops (11).
3. A service-convenient ball valve according to claim 1, wherein the upper and lower regions of the left end and the upper and lower regions of the right end of each spring one (25) are provided with a second limit plate (26), and the right end of each second limit plate (26) and the connecting block (39) is in contact with the left end of the first limit plate (16).
4. A service-convenient ball valve according to claim 1, wherein the control rod (28) is provided with a second spring (27) at its circumferential outer wall, and the top end and the bottom end of the second spring (27) are respectively in contact with the bottom end of the pressing handle (29) and the top end of the valve body (1).
5. The ball valve convenient for maintenance according to claim 1, wherein a plurality of fixing rods (33) are connected between the bottom end of the upper access plate (34) and the sealing plate (41), and a spring three (32) is sleeved on the circumferential outer wall of each fixing rod (33), and the top end and the bottom end of the spring three (32) are respectively contacted with the bottom end of the upper access plate (34) and the top end of the sealing plate (41).
6. A service-friendly ball valve as claimed in claim 1, characterized in that the top end of the adjusting handle (21) is provided with a positioning nut (22), and the positioning nut (22) and the adjusting handle (21) are fixedly connected.
7. A service-friendly ball valve as claimed in claim 1, characterized in that the bottom end of the rotary ball (14) is rotatably connected with a coupling shaft (31) through a fixing cap (30), and the coupling shaft (31) is rotatably engaged with the top end of the lower seal block (4).
8. A method of servicing a ball valve for ease of servicing as recited in any of claims 1-7, comprising the steps of:
the method comprises the following steps that firstly, a water inlet pipe (12) is communicated with a water outlet pipe (2) through a valve main body (1), and a ball valve is controlled to be opened and closed through rotating an adjusting handle (21);
step two, when in maintenance, the control rod (28) is pressed downwards, the connecting block (39) moves rightwards under the pressure of the control rod (28), and the pipeline is blocked through the matching among the connecting block (39), the blocking block (42) and the first limiting plate (16), so that liquid leakage is prevented, and maintenance is performed;
step three, when small leakage occurs, the ball valve is opened through a lower access panel or an upper access panel (34), and damaged parts inside are replaced;
step four, when large-scale leakage occurs, the first flange (7) and the second flange (8) are separated through the matching between the fixing screw (10) and the fixing nut (9), and parts with larger interior parts are replaced or maintained;
and step five, after the maintenance is finished, the control rod (28) is lifted, so that the blocking block (42) is far away from the first limiting plate (16), and the valve is communicated.
CN202110195456.8A 2021-02-22 2021-02-22 Ball valve convenient to maintain and maintenance method thereof Pending CN112901815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110195456.8A CN112901815A (en) 2021-02-22 2021-02-22 Ball valve convenient to maintain and maintenance method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110195456.8A CN112901815A (en) 2021-02-22 2021-02-22 Ball valve convenient to maintain and maintenance method thereof

Publications (1)

Publication Number Publication Date
CN112901815A true CN112901815A (en) 2021-06-04

Family

ID=76124230

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110195456.8A Pending CN112901815A (en) 2021-02-22 2021-02-22 Ball valve convenient to maintain and maintenance method thereof

Country Status (1)

Country Link
CN (1) CN112901815A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113639093A (en) * 2021-08-09 2021-11-12 陆诗雨 Online maintenance ball valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113639093A (en) * 2021-08-09 2021-11-12 陆诗雨 Online maintenance ball valve
CN113639093B (en) * 2021-08-09 2023-09-29 拓姆菲阀门科技(安徽)有限公司 Online maintenance ball valve

Similar Documents

Publication Publication Date Title
JP2008286398A (en) Switch valve
US4657222A (en) Valve
DK162858B (en) BALL VALVE, ISAIR FOR UNDERGROUND PIPE PIPE SYSTEMS
CN112901815A (en) Ball valve convenient to maintain and maintenance method thereof
US2665875A (en) Valve construction
WO1996000358A1 (en) Sweep flow valve with removable valve seat
CN104482253A (en) Combined valve
CN209977301U (en) Four-valve-clack type friction-free ball valve
CN212928822U (en) Cock pre-tightening adjusting structure of large-diameter oil seal type plug valve
EP0159799B1 (en) Ball valve
CN109764158B (en) High temperature resistant type four-way ball valve
CN112747134A (en) Manual flow regulating valve
CN209977308U (en) Non-interference guide valve core assembly and non-friction ball valve
CN113063013A (en) Gate valve, stop valve and over-and-under type check valve of no valve gap
CN220168593U (en) Butterfly valve with maintenance sealing pair
CN111720620A (en) Stop valve
KR102560931B1 (en) Top-entry butterfly valve with a double sealing structure
CN219841073U (en) One-piece ball valve based on pressure balance
CN220204726U (en) Ball valve convenient to disassemble, assemble and overhaul quickly
CN210600226U (en) Double-cutoff bottom valve
US4364543A (en) Valve device
CN219827844U (en) Safety valve for online replacement of filter
CN219755416U (en) Pneumatic three-way shunt regulating valve
CN220505864U (en) Sealing compensation type ball valve
CN219432497U (en) Powder plug valve

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210604

WD01 Invention patent application deemed withdrawn after publication