CN114811061A - Corrugated pipe stop valve - Google Patents

Corrugated pipe stop valve Download PDF

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Publication number
CN114811061A
CN114811061A CN202210323504.1A CN202210323504A CN114811061A CN 114811061 A CN114811061 A CN 114811061A CN 202210323504 A CN202210323504 A CN 202210323504A CN 114811061 A CN114811061 A CN 114811061A
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CN
China
Prior art keywords
valve
gear
rod
fixed
bellows
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.)
Granted
Application number
CN202210323504.1A
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Chinese (zh)
Other versions
CN114811061B (en
Inventor
李伟
姚建均
王茁
严涛
严珊珊
童海东
史可任
季会剑
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.)
Jiangsu Shengtai Valve Co ltd
Original Assignee
Jiangsu Shengtai Valve Co ltd
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Filing date
Publication date
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Priority to CN202210323504.1A priority Critical patent/CN114811061B/en
Publication of CN114811061A publication Critical patent/CN114811061A/en
Application granted granted Critical
Publication of CN114811061B publication Critical patent/CN114811061B/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/106—Ring-shaped filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0416—Air cooling or ventilation
    • 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
    • F16K1/32—Details
    • F16K1/48—Attaching valve members to screw-spindles
    • F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member
    • 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
    • F16K1/32—Details
    • F16K1/50—Preventing rotation of valve members
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F16K37/0016—Mechanical means having a graduated scale
    • 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
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/02—Devices for relieving the pressure on the sealing faces for lift 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
    • 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
    • F16N—LUBRICATING
    • F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
    • F16N11/02—Hand-actuated grease cups, e.g. Stauffer cups
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Details Of Valves (AREA)

Abstract

The invention provides a bellows stop valve, comprising: the valve comprises a valve body, wherein an inlet and an outlet are formed in the valve body, a valve cavity is formed between the inlet and the outlet, a valve cover is connected to the top end of the valve body through a bolt, a valve rod is arranged in the valve cover, one end of the valve rod extends into the valve cavity and is connected with a valve component, the other end of the valve rod extends out of the valve cover and is connected with a hand wheel, a corrugated pipe assembly is sleeved on the valve rod, and a packing assembly is arranged at the top end of the corrugated pipe assembly. The invention aims to provide a corrugated pipe stop valve which is high in safety and convenient to use.

Description

Corrugated pipe stop valve
Technical Field
The invention relates to the technical field of valves, in particular to a corrugated pipe stop valve.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. Bellows stop valve generally is used for dangerous operating mode such as inflammable, explosive, poisonous, among the prior art, bellows stop valve structure is complicated, and the leakproofness is poor, and during the use, the medium leaks easily, can produce very big potential safety hazard for bellows stop valve security is poor, and life is short.
Disclosure of Invention
Therefore, the invention aims to solve the problems of poor safety and short service life of the corrugated pipe stop valve in the prior art.
Therefore, the technical scheme is that the invention provides a corrugated pipe stop valve, which comprises: the improved valve comprises a valve body, wherein an inlet and an outlet are formed in the valve body, a valve cavity is formed between the inlet and the outlet, the top end of the valve body is connected with a valve cover through bolts, a valve rod is arranged in the valve cover, one end of the valve rod extends into the valve cavity and is connected with a valve component, the other end of the valve rod extends out of the valve cover and is connected with a hand wheel, a corrugated pipe component is sleeved on the valve rod, and a packing component is arranged at the top end of the corrugated pipe component.
Preferably, the valve assembly comprises: the valve comprises a valve clack, a thrust pad and a valve clack cover, wherein the valve clack cover is sleeved on the lower portion of a valve rod, the thrust pad is arranged at the bottom end of the valve rod, the valve clack is sleeved on the valve clack cover, and the thrust pad is connected with the inner wall of the bottom end of the valve clack.
Preferably, the bellows assembly comprises: bellows, sealing joint, guide ring, the bellows cover is established on the valve rod, the bellows top is provided with sealing joint, sealing joint with valve gap top welded connection, the bellows bottom is provided with the guide ring, the guide ring with valve rod welded connection.
Preferably, a plurality of pressure balance holes are arranged on the guide ring at intervals.
Preferably, the packing assembly comprises a packing, a packing pressing sleeve and a packing pressing plate, a packing groove is formed in the top end of the sealing joint, the packing is arranged in the packing groove, the packing pressing sleeve is arranged on the top end of the packing, the packing pressing plate is arranged on the top end of the packing pressing sleeve, the valve rod sequentially penetrates through the packing groove, the packing pressing sleeve and the packing pressing plate, and the packing pressing plate is connected with the top end of the valve cover through a bolt.
Preferably, the cover is equipped with the tray on the valve rod, the tray is located the hand wheel below, the tray with stand bolted connection is passed through on the valve gap top, the valve rod pass through valve-stem nut with the tray rotates to be connected, the valve-stem nut top with hand wheel connection.
Preferably, an oil cup is arranged on the outer wall of one side of the tray, and the oil cup is communicated with the joint of the tray and the valve rod nut.
Preferably, the anti-rotation device further comprises an anti-rotation component, wherein the anti-rotation component comprises: the valve rod is arranged between the front clamping plate and the rear clamping plate, the front clamping plate is connected with the rear clamping plate through two screws, the screws are arranged on two sides of the valve rod, two ends of the front clamping plate and two ends of the rear clamping plate are clamped on the stand column respectively, and a plurality of scale marks are arranged on the outer wall of the stand column at intervals.
Preferably, the device further comprises a pipe wall cleaning device, wherein the pipe wall cleaning device comprises: a transmission case, a driving motor, an electric cylinder and a fixed bevel gear,
the top end of one side of the bottom plate is provided with a transmission box, the top end of the other side of the bottom plate is provided with a fixed groove body, an electric cylinder is arranged on the inner wall of one side of the transmission box, which is far away from the fixed groove body, an opening is arranged on one side wall of the transmission box, which is close to the fixed groove body, a piston rod of the electric cylinder faces the opening and is connected with a driving motor, an output shaft of the driving motor faces the opening, the output shaft of the driving motor passes through the axis of a fixed bevel gear and is connected with one side wall of an L-shaped connecting plate, the output shaft of the driving motor is rotationally connected with the fixed bevel gear, the fixed bevel gear is fixedly connected with the driving motor, one end of the other side wall of the L-shaped connecting plate, which is close to the driving motor, is rotationally connected with a first rotating rod, one end of the first rotating rod passes through the axis of a driven bevel gear and is connected with a fixed plate, and the first rotating rod is fixedly connected with the driven bevel gear, the driven bevel gear is meshed with the fixed bevel gear, the other end of the first rotating rod sequentially penetrates through the L-shaped connecting plate and the axis of the first gear to be connected with the scraper, and the first rotating rod is fixedly connected with the first gear;
first dwang is kept away from one side of driving motor has set gradually second dwang and third dwang, second dwang one end is passed the L type is even connected with the fixed plate, the second dwang other end passes second gear axis and is connected with the scraper blade, the second dwang with the L type is even the board and is rotated and is connected, the second dwang with second gear fixed connection, third dwang one end is passed the L type is even the board and is connected with the fixed plate, the third dwang other end passes third gear axis and is connected with the scraper blade, the third dwang with the L type is even the board and is rotated and is connected, the second dwang with third gear fixed connection, the fixed plate is kept away from be provided with the brush hair on the outer wall of one side of L type even board, the L type is even the board is kept away from driving motor's one end is provided with the brush.
Preferably, the heat dissipation device further comprises a heat dissipation device, wherein the heat dissipation device comprises: a motor, an internal gear, a fixed gear and a fourth gear,
a heat dissipation opening is formed in one side wall of the transmission case, an annular filter screen is arranged in the heat dissipation opening, an L-shaped fixing rod in the vertical direction is arranged in the transmission case, one end of the L-shaped fixing rod is connected with the inner wall of the top end of the transmission case, a motor is arranged at the other end of the L-shaped fixing rod, an output shaft of the motor faces the annular filter screen, the output shaft of the motor penetrates through the axis of a fixed gear and is connected with one end of a crank, the fixed gear is rotatably connected with the output shaft of the motor, the fixed gear is connected with the motor, the other end of the crank is rotatably connected with a first transmission rod, one end of the first transmission rod is provided with a rotating frame, and one end of the rotating frame, which is close to the annular filter screen, is provided with an internal gear;
a second transmission rod is rotatably connected at the center of the annular filter screen, one end of the second transmission rod, which is far away from the annular filter screen, extends into the internal gear and is connected with a fourth gear, the fourth gear is coaxial with the motor and is meshed with the internal gear, a plurality of second fan blades are arranged on the circumferential outer wall of the second transmission rod at intervals, the second fan blades are positioned between the fourth gear and the annular filter screen, the outer wall of one side of the inner gear close to the annular filter screen is provided with a brush which is contacted with the annular filter screen, the other end of the first transmission rod sequentially penetrates through the crank and the driven gear axis to be connected with the rotating plate, a plurality of first fan blades are arranged on the circumferential outer wall of the rotating plate at intervals, the driven gear is meshed with the fixed gear, and the outer wall of one side of the crank, which is close to the annular filter screen, is provided with a collision block.
The technical scheme of the invention has the following advantages: the invention provides a bellows stop valve, comprising: the valve comprises a valve body, wherein an inlet and an outlet are formed in the valve body, a valve cavity is formed between the inlet and the outlet, a valve cover is connected to the top end of the valve body through a bolt, a valve rod is arranged in the valve cover, one end of the valve rod extends into the valve cavity and is connected with a valve component, the other end of the valve rod extends out of the valve cover and is connected with a hand wheel, a corrugated pipe assembly is sleeved on the valve rod, and a packing assembly is arranged at the top end of the corrugated pipe assembly. The corrugated pipe stop valve has the advantages that the valve is closed through the hand wheel and the valve component, so that the corrugated pipe stop valve is simple in structure, convenient to operate and convenient to use; seal up the valve through bellows subassembly and filler subassembly, the bellows stop valve leakproofness is good, is difficult for leaking among the medium transportation process, and the security is high, and the medium is less to the damage of valve, has improved the life of valve.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a pictorial representation of the present invention;
FIG. 3 is a schematic view of the valve assembly of the present invention;
FIG. 4 is a schematic view of a bellows assembly according to the present invention;
FIG. 5 is a schematic view of the packing assembly of the present invention;
FIG. 6 is a schematic view of an anti-rotation assembly according to the present invention;
FIG. 7 is a schematic structural view of a tube wall cleaning apparatus according to the present invention;
FIG. 8 is a schematic view of a heat dissipation device according to the present invention;
FIG. 9 is an enlarged view of a heat dissipating device A of the present invention;
FIG. 10 is a side view of the heat dissipation device of the present invention;
wherein, 1-valve body, 2-valve cavity, 3-inlet, 4-outlet, 5-valve cover, 6-valve rod, 7-hand wheel, 8-valve flap, 9-thrust pad, 10-valve flap cover, 11-corrugated pipe, 12-sealing joint, 13-guide ring, 14-pressure balance hole, 15-filler, 16-filler press sleeve, 17-filler press plate, 18-filler groove, 19-tray, 20-upright post, 21-valve rod nut, 22-oil cup, 23-front clamp plate, 24-rear clamp plate, 25-screw, 26-transmission box, 27-driving motor, 28-electric cylinder, 29-fixed bevel gear, 30-bottom plate, 31-opening, 32-L type connecting plate, 33-first rotating rod, 34-driven bevel gear, 35-fixed plate, 36-first gear, 37-scraper, 38-second rotating rod, 39-third rotating rod, 40-second gear, 41-third gear, 42-bristle, 43-sweeping brush, 44-motor, 45-internal gear, 46-fixed gear, 47-fourth gear, 48-heat dissipation port, 49-annular filter screen, 50-L-shaped fixed rod, 51-crank, 52-first driving rod, 53-rotating frame, 54-brush, 55-driven gear, 56-rotating plate, 57-first fan blade, 58-second driving rod, 59-second fan blade, 60-collision block and 61-fixed groove body.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following description of the preferred embodiments of the present invention with reference to the accompanying drawings is provided, and it should be understood that the preferred embodiments described herein are only for illustrating and explaining the present invention and are not intended to limit the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
An embodiment of the present invention provides a bellows stop valve, as shown in fig. 1-2, including: the improved valve comprises a valve body 1, an inlet 3 and an outlet 4 are arranged on the valve body 1, a valve cavity 2 is arranged between the inlet 3 and the outlet 4, a valve cover 5 is connected to the top end of the valve body 1 through bolts, a valve rod 6 is arranged in the valve cover 5, one end of the valve rod 6 extends into the valve cavity 2 and is connected with a valve assembly, the other end of the valve rod 6 extends out of the valve cover 5 and is connected with a hand wheel 7, a corrugated pipe assembly is sleeved on the valve rod 6, and a packing assembly is arranged at the top end of the corrugated pipe assembly.
The working principle and the beneficial effects of the technical scheme are as follows: when the valve is used, the hand wheel 7 is manually rotated, so that the valve rod 6 moves upwards to drive the valve assembly to move upwards, the inlet 3 is communicated with the outlet 4 through the valve cavity 2, the valve is opened, the corrugated pipe assembly is used for sealing the valve cover 5 to avoid medium leakage, the packing assembly is used for sealing the corrugated pipe assembly and the valve rod 6 to avoid medium leakage in the moving process of the valve rod 6. The corrugated pipe stop valve has the advantages that the valve is closed through the hand wheel and the valve component, so that the corrugated pipe stop valve is simple in structure, convenient to operate and convenient to use; seal up the valve through bellows subassembly and filler subassembly, the bellows stop valve leakproofness is good, is difficult for leaking among the medium transportation process, and the security is high, and the medium is less to the damage of valve, has improved the life of valve.
In one embodiment, as shown in fig. 3, the valve assembly comprises: valve clack 8, thrust pad 9, valve clack lid 10 cover is established 6 lower parts of valve rod, thrust pad 9 sets up 6 bottom ends of valve rod, the cover is equipped with valve clack 8 on the valve clack lid 10, thrust pad 9 with 8 bottom inner wall connections of valve clack.
The working principle and the beneficial effects of the technical scheme are as follows: valve is closed to valve clack 8 and thrust pad 9 combined action, and when valve rod 6 moved down and closed the valve, thrust pad 9 was used for extrudeing valve clack 8, extrudeed valve clack 8 in the pipeline of inlet port 3 to close the valve, improved the leakproofness of valve, valve clack lid 10 was used for fixed mounting valve clack 8, prevented that valve clack 8 from droing.
In one embodiment, as shown in fig. 4, the bellows assembly comprises: bellows 11, sealing joint 12, guide ring 13, 11 covers of bellows are established on the valve rod 6, 11 tops of bellows are provided with sealing joint 12, sealing joint 12 with 5 top welded connections of valve gap, 11 bottoms of bellows are provided with guide ring 13, guide ring 13 with valve rod 6 welded connection.
The working principle and the beneficial effects of the technical scheme are as follows: 11 tops of bellows are passed through sealing joint 12 and are welded with valve gap 5, 11 bottoms of bellows are passed through guide ring 13 and are welded with valve rod 6, the leakproofness of bellows 11 has been improved, avoid bellows 11 to produce and leak, the reliability of valve has been improved, guide ring 13 is used for leading the medium that gets into in valve gap 5, avoid the medium to directly erode bellows 11, can restrict bellows 11's flexible scope simultaneously, avoid bellows 11 to lose elasticity, the life of bellows 11 has been improved.
In one embodiment, the guide ring 13 is provided with a plurality of pressure balance holes 14 at intervals.
The working principle and the beneficial effects of the technical scheme are as follows: the pressure balance hole 14 is used for communicating the valve cavity 2 and the valve cover 5, pressure between the valve cavity 2 and the valve cover 5 is balanced, negative pressure or backlog generated in the use process of the valve is prevented from influencing the operation of the valve, and therefore smooth opening and closing of the valve are guaranteed.
In one embodiment, as shown in fig. 5, the packing assembly includes a packing 15, a packing pressing sleeve 16, and a packing pressing plate 17, a packing groove 18 is formed at the top end of the sealing joint 12, the packing 15 is arranged in the packing groove 18, the packing pressing sleeve 16 is arranged at the top end of the packing 15, the packing pressing plate 17 is arranged at the top end of the packing pressing sleeve 16, the valve rod 6 sequentially passes through the packing groove 18, the packing 15, the packing pressing sleeve 16, and the packing pressing plate 17 is connected with the top end of the valve cover 5 through a bolt.
The working principle and the beneficial effects of the technical scheme are as follows: the packing 15 is filled into the packing groove 18, the packing 15 is compacted through the packing pressing plate 17 and the packing pressing sleeve 16, the joint of the valve rod 6 and the sealing joint 12 is sealed, the packing pressing plate 17 and the packing pressing sleeve 16 are adjusted in height through the adjusting bolt, so that the compaction degree of the packing 15 is adjusted, the sealing performance of the packing assembly is improved, and meanwhile, the packing pressing plate 17 is fixedly installed on the valve cover 5, and the verticality of the installation of the valve rod 6 is guaranteed.
In one embodiment, a tray 19 is sleeved on the valve rod 6, the tray 19 is positioned below the hand wheel 7, the tray 19 is in bolted connection with the top end of the valve cover 5 through an upright post 20, the valve rod 6 is rotatably connected with the tray 19 through a valve rod nut 21, and the top end of the valve rod nut 21 is connected with the hand wheel 7.
The working principle and the beneficial effects of the technical scheme are as follows: tray 19 and stand 20 are used for supporting hand wheel 7, rotate hand wheel 7, drive valve rod nut 21 rotatory, through the screw drive between valve rod nut 21 and the valve rod 6 for valve rod 6 rises or descends, thereby realizes opening or closing of valve, easy operation, simple to operate.
In one embodiment, an oil cup 22 is arranged on the outer wall of one side of the tray 19, and the oil cup 22 is communicated with the joint of the tray 19 and the valve rod nut 21.
The working principle and the beneficial effects of the technical scheme are as follows: the oil cup 22 is used for filling lubricating oil to the joint of the tray 19 and the valve rod nut 21, reduces abrasion between the tray 19 and the valve rod nut 21, prolongs the service life of the valve rod nut 21, and is convenient for the hand wheel 7 to operate.
In one embodiment, as shown in fig. 6, further comprising an anti-rotation assembly comprising: front plate 23, back splint 24, valve rod 6 is located front plate 23 with between the back splint 24, front plate 23 with back splint 24 is connected through two screws 25, two screws 25 are located valve rod 6 both sides, front plate 23 with back splint 24 both ends block respectively on stand 20, the interval is provided with a plurality of scale marks on the stand 20 outer wall.
The working principle and the beneficial effects of the technical scheme are as follows: the valve rod 6 drives the front clamping plate 23 and the rear clamping plate 24 to move up and down in the process of moving up and down, and the distance of the valve rod 6 moving up and down can be displayed according to the change of the distance between the front clamping plate 23 and the rear clamping plate 24 and the scale marks, so that the opening and closing position of the valve can be observed; meanwhile, the front clamping plate 23 and the rear clamping plate 24 are clamped on the stand column 20, so that the valve rod 6 can be prevented from rotating, the valve rod 6 is prevented from generating torsional force, and the corrugated pipe assembly is prevented from being damaged.
In one embodiment, as shown in fig. 7, the pipe wall cleaning device is further included, and the pipe wall cleaning device includes: a transmission box 26, a driving motor 27, an electric cylinder 28, a fixed bevel gear 29,
the top end of one side of the bottom plate 30 is provided with a transmission box 26, the top end of the other side of the bottom plate 30 is provided with a fixed groove body 61, the inner wall of one side of the transmission box 26 far away from the fixed groove body 61 is provided with an electric cylinder 28, one side wall of the transmission box 26 near the fixed groove body 61 is provided with an opening 31, a piston rod of the electric cylinder 28 faces the opening 31 and is connected with a driving motor 27, an output shaft of the driving motor 27 faces the opening 31, the output shaft of the driving motor 27 passes through the axis of a fixed bevel gear 29 and is connected with one side wall of an L-shaped connecting plate 32, the output shaft of the driving motor 27 is rotationally connected with the fixed bevel gear 29, the fixed bevel gear 29 is fixedly connected with the driving motor 27, one end of the other side wall of the L-shaped connecting plate 32 near the driving motor 27 is rotationally connected with a first rotating rod 33, one end of the first rotating rod 33 passes through the axis of a driven bevel gear 34 and is connected with a fixed plate 35, the first rotating rod 33 is fixedly connected with the driven bevel gear 34, the driven bevel gear 34 is meshed with the fixed bevel gear 29, the other end of the first rotating rod 33 sequentially penetrates through the L-shaped connecting plate 32 and the axis of the first gear 36 to be connected with the scraper 37, and the first rotating rod 33 is fixedly connected with the first gear 36;
first dwang 33 is kept away from one side of driving motor 27 has set gradually second dwang 38 and third dwang 39, second dwang 38 one end is passed L type even board 32 is connected with fixed plate 35, the second dwang 38 other end passes second gear 40 axis and is connected with scraper blade 37, second dwang 38 with L type even board 32 rotates to be connected, second dwang 38 with second gear 40 fixed connection, third dwang 39 one end is passed L type even board 32 is connected with fixed plate 35, the third dwang 39 other end passes third gear 41 axis and is connected with scraper blade 37, third dwang 39 with L type even board 32 rotates to be connected, second dwang 38 with third gear 41 fixed connection, fixed plate 35 keeps away from be provided with brush hair 42 on the outer wall of one side of L type even board 32, and one end of the L-shaped connecting plate 32, which is far away from the driving motor 27, is provided with a sweeping brush 43.
The working principle and the beneficial effects of the technical scheme are as follows: before the corrugated pipe stop valve is assembled, the valve body 1 needs to be cleaned, so that impurities on the pipe wall of the valve body 1 are prevented from damaging a valve component and influencing medium circulation, the valve body 1 is clamped in a fixed groove body 61, an electric cylinder 28 is started to drive a pipe wall cleaning device to penetrate through an opening 31 and extend into a pipe orifice of an inlet 3, a driving motor 27 is started to drive an L-shaped connecting plate 32 to rotate, a sweeping brush 43 is driven to rotate around an output shaft of the driving motor 27, and a partition plate in a valve cavity 2 is swept; the L-shaped connecting plate 32 drives the first rotating rod 33, the second rotating rod 38 and the third rotating rod 39 to rotate around the output shaft of the driving motor 27 respectively, drives the driven bevel gear 34, the first gear 36, the second gear 40 and the third gear 41 to rotate around the output shaft of the driving motor 27, drives the three scrapers 37 to rotate around the output shaft of the driving motor 27, drives the three fixing plates 35 and the bristles 42 thereon to rotate around the output shaft of the driving motor 27, enables the driven bevel gear 34 to rotate through gear meshing transmission between the driven bevel gear 34 and the fixed bevel gear 29, drives the first rotating rod 33 to rotate, drives the first gear 36 to rotate, enables the second gear 40 and the third gear 41 to rotate through gear meshing transmission between the second gear 40 and the third gear 41 respectively, drives the second rotating rod 38 and the third rotating rod 39 to rotate, and enables the three scrapers 37 to rotate, the three fixed plates 35 and the bristles 42 on the three fixed plates rotate, the three scraping plates 37, the three fixed plates 35 and the bristles 42 on the three fixed plates rotate around the output shaft of the driving motor 27 while rotating, the pipe wall of the valve body 1 is cleaned, the scraping plates 37 can scrape stubborn impurities on the pipe wall of the valve body 1, the bristles 42 can brush dust and impurities accumulated on the pipe wall, the pipe wall of the valve body 1 is kept smooth and clean, meanwhile, the bristles 42 can sweep the impurities scraped off by the scraping plates 37 out of the pipe wall, secondary damage of the scraped stubborn impurities on the pipe wall is avoided, and the service life of the valve body 1 is prolonged; the transmission efficiency of the three gears is different due to the different tooth numbers of the three gears, so that the autorotation speeds of the three scraping plates 37 and the bristles 42 are different, the wall cleaning effects of the three scraping plates 37 and the bristles 42 are different, effective cleaning can be performed on different states of different pipe walls, and the use is convenient; in the process of the meshing transmission of the three gears, vibration is generated, impurities accumulated on the scraper 37 and the bristles 42 can be vibrated down, the scraper 37 and the bristles 42 are kept clean, and the cleaning efficiency is improved; when cleaning is completed, the electric cylinder 28 is started to withdraw the pipe wall cleaning device to the transmission case 26, so that the pipe wall cleaning device is prevented from being damaged.
In one embodiment, as shown in fig. 8-10, further comprising a heat sink, the heat sink comprising: a motor 44, an internal gear 45, a fixed gear 46, a fourth gear 47,
a heat dissipation port 48 is formed in one side wall of the transmission case 26, an annular filter screen 49 is arranged in the heat dissipation port 48, an L-shaped fixing rod 50 in the vertical direction is arranged in the transmission case 26, one end of the L-shaped fixing rod 50 is connected with the inner wall of the top end of the transmission case 26, a motor 44 is arranged at the other end of the L-shaped fixing rod 50, an output shaft of the motor 44 faces the annular filter screen 49, an output shaft of the motor 44 penetrates through the axis of a fixed gear 46 and is connected with one end of a crank 51, the fixed gear 46 is rotatably connected with the output shaft of the motor 44, the fixed gear 46 is connected with the motor 44, a first transmission rod 52 is rotatably connected with the other end of the crank 51, a rotating frame 53 is arranged at one end of the first transmission rod 52, and an internal gear 45 is arranged at one end of the rotating frame 53, which is close to the annular filter screen 49;
the center of ring filter 49 is located to rotate and is connected with second transfer line 58, the second transfer line 58 is kept away from the one end of ring filter 49 extends into be connected with fourth gear 47 in the internal gear 45, fourth gear 47 with the motor 44 coaxial line, fourth gear 47 with internal gear 45 intermeshing, the interval is provided with a plurality of second flabellums 59 on the outer wall of second transfer line 58 circumference, second flabellum 59 is located between fourth gear 47 and the ring filter 49, internal gear 45 is close to be provided with brush 54 on the outer wall of one side of ring filter 49, brush 54 with ring filter 49 contacts, the crank 51, driven gear 55 axis are passed in proper order to the first transfer line 52 other end and are connected with rotor plate 56, rotor plate 56 circumference interval is provided with a plurality of first flabellums 57 on the outer wall, the driven gear 55 is meshed with the fixed gear 46, and an impact block 60 is arranged on the outer wall of one side of the crank 51 close to the annular filter screen 49.
The working principle and the beneficial effects of the technical scheme are as follows: the heat dissipation port 48 is used for dissipating heat generated by the operation of mechanisms in the transmission box 26, the annular filter screen 49 is used for preventing the mechanisms in the transmission box 26 from being polluted by dust, a large amount of dust is accumulated after the annular filter screen 49 is used for a period of time, the motor 44 is started, the crank 51 is driven to rotate, the first transmission rod 52 is driven to rotate around the output shaft of the motor 44, the driven gear 55, the rotating plate 56 and the first fan blade 57 are driven to rotate around the output shaft of the motor 44, the driven gear 55 rotates by gear meshing transmission between the driven gear 55 and the fixed gear 46, the driven gear 55 rotates by composite superposition of movement while rotating, the driven gear 55 rotates around the output shaft of the motor 44 while rotating, the first transmission rod 52, the rotating plate 56 and the first fan blade 57 rotate while rotating around the output shaft of the motor 44, the first fan blade 57 blows air flow, and the air flow rate in the transmission box 26 is increased, the exchange speed between the transmission box 26 and the outside air is increased, the heat dissipation efficiency is improved, the airflow blown by the first fan blades 57 is blown out from the opening 31, dust swept out by the pipe wall cleaning device can be prevented from entering the transmission box 26 to pollute mechanisms in the transmission box 26, and meanwhile, the first fan blades 57 blow air to cool the motor 44; the first transmission rod 52 drives the inner gear 45 to rotate around the output shaft of the motor 44 while rotating, and drives the brush 54 to rotate around the output shaft of the motor 44 while rotating, so as to perform scanning type cleaning on the annular filter screen 49, the cleaning effect is good, the annular filter screen 49 is prevented from being blocked by dust, and the heat dissipation efficiency of the annular filter screen 49 is improved; through the gear meshing transmission between the internal gear 45 and the fourth gear 47, the fourth gear 47 is driven to rotate, the second fan blade 59 blows air flow, dust swept down by the brush 54 is blown out of the transmission case 26, and the mechanism in the transmission case 26 is prevented from being polluted.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A bellows shut-off valve, comprising: the improved valve comprises a valve body (1), wherein an inlet (3) and an outlet (4) are formed in the valve body (1), a valve cavity (2) is formed between the inlet (3) and the outlet (4), a valve cover (5) is connected to the top end of the valve body (1) through bolts, a valve rod (6) is arranged in the valve cover (5), one end of the valve rod (6) extends into the valve cavity (2) and is connected with a valve assembly, the other end of the valve rod (6) extends out the valve cover (5) is connected with a hand wheel (7), a corrugated pipe assembly is sleeved on the valve rod (6), and a packing assembly is arranged on the top end of the corrugated pipe assembly.
2. A bellows shut-off valve as defined in claim 1, wherein said valve assembly comprises: valve clack (8), thrust pad (9), valve clack lid (10) cover is established valve rod (6) lower part, thrust pad (9) set up valve rod (6) bottom, the cover is equipped with valve clack (8) on valve clack lid (10), thrust pad (9) with valve clack (8) bottom inner wall connection.
3. A bellows shut-off valve as defined in claim 1, wherein said bellows assembly comprises: bellows (11), sealing joint (12), guide ring (13), bellows (11) cover is established on valve rod (6), bellows (11) top is provided with sealing joint (12), sealing joint (12) with valve gap (5) top welded connection, bellows (11) bottom is provided with guide ring (13), guide ring (13) with valve rod (6) welded connection.
4. A bellows shut-off valve according to claim 3, characterized in that the guide ring (13) is provided with pressure equalizing holes (14) at intervals.
5. A bellows stop valve according to claim 3, wherein the packing assembly comprises a packing (15), a packing pressing sleeve (16), and a packing pressing plate (17), a packing groove (18) is formed at the top end of the sealing joint (12), the packing (15) is arranged in the packing groove (18), the packing pressing sleeve (16) is arranged at the top end of the packing (15), a packing pressing plate (17) is arranged at the top end of the packing pressing sleeve (16), the valve rod (6) sequentially passes through the packing groove (18), the packing (15), the packing pressing sleeve (16), and the packing pressing plate (17) is connected with the top end of the valve cover (5) through a bolt.
6. A bellows stop valve according to claim 1, characterized in that a tray (19) is sleeved on the valve rod (6), the tray (19) is located below the hand wheel (7), the tray (19) is bolted to the top end of the valve cover (5) through a column (20), the valve rod (6) is rotatably connected to the tray (19) through a valve rod nut (21), and the top end of the valve rod nut (21) is connected to the hand wheel (7).
7. A bellows stop valve according to claim 6, characterized in that an oil cup (22) is provided on an outer wall of one side of the tray (19), and the oil cup (22) communicates with a joint of the tray (19) and the stem nut (21).
8. A bellows shut-off valve according to claim 6, further comprising an anti-rotation assembly comprising: front plate (23), back splint (24), valve rod (6) are located front plate (23) with between back splint (24), front plate (23) with back splint (24) are connected through two screws (25), two screw (25) are located valve rod (6) both sides, front plate (23) with back splint (24) both ends are blocked respectively on stand (20), the interval is provided with a plurality of scale marks on stand (20) outer wall.
9. A bellows shut-off valve as defined in claim 1, further comprising a tube wall cleaning device, said tube wall cleaning device comprising: a transmission case (26), a driving motor (27), an electric cylinder (28) and a fixed bevel gear (29),
bottom plate (30) one side top is provided with transmission case (26), bottom plate (30) opposite side top is provided with fixed cell body (61), transmission case (26) are kept away from be provided with electric jar (28) on the one side inner wall of fixed cell body (61), transmission case (26) are close to be provided with opening (31) on the lateral wall of fixed cell body (61), the piston rod orientation of electric jar (28) opening (31) are connected with driving motor (27), the output shaft orientation of driving motor (27) opening (31), the output shaft of driving motor (27) passes fixed bevel gear (29) axis and is connected with a lateral wall of L type link board (32), the output shaft of driving motor (27) with fixed bevel gear (29) rotate and are connected, fixed bevel gear (29) with driving motor (27) fixed connection, be close to on another lateral wall of L type link board (32) one end of driving motor (27) rotates and is connected with One end of the first rotating rod (33) penetrates through the axis of a driven bevel gear (34) to be connected with a fixing plate (35), the first rotating rod (33) is fixedly connected with the driven bevel gear (34), the driven bevel gear (34) is meshed with the fixed bevel gear (29), the other end of the first rotating rod (33) penetrates through an L-shaped connecting plate (32) and the axis of a first gear (36) in sequence to be connected with a scraper (37), and the first rotating rod (33) is fixedly connected with the first gear (36);
keep away from first dwang (33) one side of driving motor (27) has set gradually second dwang (38) and third dwang (39), second dwang (38) one end is passed L type company board (32) is connected with fixed plate (35), second dwang (38) other end passes second gear (40) axis and is connected with scraper blade (37), second dwang (38) with L type company board (32) rotates to be connected, second dwang (38) with second gear (40) fixed connection, third dwang (39) one end is passed L type company board (32) is connected with fixed plate (35), third dwang (39) other end passes third gear (41) axis and is connected with scraper blade (37), third dwang (39) with L type company board (32) rotates to be connected, second dwang (38) with third gear (41) fixed connection, the fixed plate (35) is far away from bristles (42) are arranged on the outer wall of one side of the L-shaped connecting plate (32), and one end, far away from the driving motor (27), of the L-shaped connecting plate (32) is provided with a sweeping brush (43).
10. A bellows shut-off valve as defined in claim 9, further comprising a heat sink, said heat sink comprising: a motor (44), an internal gear (45), a fixed gear (46) and a fourth gear (47),
the heat dissipation device is characterized in that a heat dissipation port (48) is formed in one side wall of the transmission case (26), an annular filter screen (49) is arranged in the heat dissipation port (48), an L-shaped fixing rod (50) in the vertical direction is arranged in the transmission case (26), one end of the L-shaped fixing rod (50) is connected with the inner wall of the top end of the transmission case (26), a motor (44) is arranged at the other end of the L-shaped fixing rod (50), an output shaft of the motor (44) faces towards the annular filter screen (49), an output shaft of the motor (44) penetrates through the axis of a fixed gear (46) to be connected with one end of a crank (51), the fixed gear (46) is rotationally connected with the output shaft of the motor (44), the fixed gear (46) is connected with the motor (44), the other end of the crank (51) is rotationally connected with a first transmission rod (52), and a rotating frame (53) is arranged at one end of the first transmission rod (52), an internal gear (45) is arranged at one end of the rotating frame (53) close to the annular filter screen (49);
center department of ring filter (49) rotates and is connected with second transfer line (58), second transfer line (58) are kept away from the one end of ring filter (49) extends into be connected with fourth gear (47) in internal gear (45), fourth gear (47) with motor (44) coaxial line, fourth gear (47) with internal gear (45) intermeshing, interval is provided with a plurality of second flabellums (59) on second transfer line (58) circumference outer wall, second flabellum (59) are located fourth gear (47) with between ring filter (49), internal gear (45) are close to be provided with brush (54) on one side outer wall of ring filter (49), brush (54) with ring filter (49) contact, crank (51) are passed in proper order to first transfer line (52) other end, The axis of the driven gear (55) is connected with the rotating plate (56), a plurality of first fan blades (57) are arranged on the circumferential outer wall of the rotating plate (56) at intervals, the driven gear (55) is meshed with the fixed gear (46), and an impact block (60) is arranged on the outer wall of one side, close to the annular filter screen (49), of the crank (51).
CN202210323504.1A 2022-03-29 2022-03-29 Bellows stop valve pipe wall cleaning device Active CN114811061B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113019A1 (en) * 1991-04-20 1992-10-22 Josef Dipl Ing Nuesser Flap valve with rotatable and axially movable flap - has flap spindle, fixed for rotation with flap, mounted in housing bearings, that allow axial component of motion
CN205036872U (en) * 2015-10-16 2016-02-17 盐城市圣泰阀门有限公司 Novel both ends welding formula bellows stop valve
CN208627272U (en) * 2018-05-29 2019-03-22 天津市科德化工有限公司 A kind of Sulpho Tobias Acid sulfonating reaction kettle
CN113183792A (en) * 2021-04-28 2021-07-30 江苏紫龙新能源科技有限公司 Direct current liquid cooling rifle that charges and liquid cooling system thereof
CN113803519A (en) * 2021-09-24 2021-12-17 江苏圣泰阀门有限公司 Bellows structure valve
CN113957947A (en) * 2021-11-01 2022-01-21 上海邦浦实业集团有限公司 Secondary water supply equipment with wireless monitoring device
CN114658859A (en) * 2022-03-24 2022-06-24 江苏圣泰阀门有限公司 Corrugated pipe valve structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113019A1 (en) * 1991-04-20 1992-10-22 Josef Dipl Ing Nuesser Flap valve with rotatable and axially movable flap - has flap spindle, fixed for rotation with flap, mounted in housing bearings, that allow axial component of motion
CN205036872U (en) * 2015-10-16 2016-02-17 盐城市圣泰阀门有限公司 Novel both ends welding formula bellows stop valve
CN208627272U (en) * 2018-05-29 2019-03-22 天津市科德化工有限公司 A kind of Sulpho Tobias Acid sulfonating reaction kettle
CN113183792A (en) * 2021-04-28 2021-07-30 江苏紫龙新能源科技有限公司 Direct current liquid cooling rifle that charges and liquid cooling system thereof
CN113803519A (en) * 2021-09-24 2021-12-17 江苏圣泰阀门有限公司 Bellows structure valve
CN113957947A (en) * 2021-11-01 2022-01-21 上海邦浦实业集团有限公司 Secondary water supply equipment with wireless monitoring device
CN114658859A (en) * 2022-03-24 2022-06-24 江苏圣泰阀门有限公司 Corrugated pipe valve structure

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