CN113969990A - Loose joint stop check valve - Google Patents

Loose joint stop check valve Download PDF

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Publication number
CN113969990A
CN113969990A CN202111225766.6A CN202111225766A CN113969990A CN 113969990 A CN113969990 A CN 113969990A CN 202111225766 A CN202111225766 A CN 202111225766A CN 113969990 A CN113969990 A CN 113969990A
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CN
China
Prior art keywords
valve body
movable
flange plate
plate
check valve
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
CN202111225766.6A
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Chinese (zh)
Inventor
张伟
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202111225766.6A priority Critical patent/CN113969990A/en
Publication of CN113969990A publication Critical patent/CN113969990A/en
Pending legal-status Critical Current

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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
    • F16K1/02—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 with screw-spindle
    • F16K1/04—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 with screw-spindle with a cut-off member rigid with the spindle, e.g. main 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
    • 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
    • F16K1/02—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 with screw-spindle
    • F16K1/06—Special arrangements for improving the flow, e.g. special shape of passages or casings
    • F16K1/08—Special arrangements for improving the flow, e.g. special shape of passages or casings in which the spindle is perpendicular to the general direction of flow
    • 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
    • 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
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—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
    • 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
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0227—Check valves or pivoted valves with the valve members swinging around an axis located at the edge of or outside 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
    • 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
    • F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)

Abstract

The invention provides a movable stop check valve, which comprises a valve body, a threaded rod and a movable cover plate, wherein the valve body is provided with a valve body hole; the lower end of the valve body is fixedly connected with the water inlet pipe, and the right end of the valve body is fixedly connected with the water outlet pipe; the upper end of the valve body is provided with a fixed flange plate which is connected with a movable flange plate through bolts; the upper end of the threaded rod sequentially penetrates through the fixed flange plate and the movable flange plate and is in threaded connection with the clamping cap; the upper end of the movable cover plate is connected with the connecting plate through bolts. According to the clamping device, the two clamping blocks are symmetrically arranged on the upper end face of the fixed flange plate and are nested in the clamping groove at the lower end of the movable flange plate, so that a worker can limit the fixed flange plate and the movable flange plate in the process of aligning the two flange plates, the movable flange plate is prevented from shaking left and right, the worker can fix the movable flange plate conveniently, and the clamping blocks can be clamped in the clamping groove more conveniently by the worker due to the conical structure at the upper ends of the clamping blocks.

Description

Loose joint stop check valve
Technical Field
The invention belongs to the technical field of pipeline valves, and particularly relates to a movable stop check valve.
Background
The stop check valve has the functions of both stop valve and check valve, and its structure is similar to that of stop valve, but its valve rod is not fixedly connected with valve clack, so that when the valve rod is fallen to press the valve clack tightly on the valve seat, it can act as stop valve, and after the valve rod is risen, it can act as check valve.
Reference is made to the patent with application number CN201910345033.2, which discloses a stop check valve, comprising a valve body and a valve seat mounted on the valve body, wherein one side of the valve body is provided with a fluid inlet, the other side is provided with a fluid outlet, a flow passage is arranged in the valve body, and the central axis of the flow passage is arranged in a vertical direction; the fluid inlet and the fluid outlet are communicated with the flow channel, the liquid inlet direction of the fluid inlet is positioned at the lower part of the flow channel, and the liquid outlet direction of the fluid outlet is positioned at the upper part of the flow channel; the valve rod is arranged on the valve seat and is vertically placed, and the upper end of the valve rod is connected with the hand wheel; the sliding valve core is arranged at the lower end of the valve rod and is positioned at the upper part of the flow passage; the sliding valve core can slide up and down and can open or close the flow passage by matching with the flow passage.
Based on the search of the above patent and the discovery of the equipment in the prior art, the existing stop check valve has the phenomenon of infiltration in the process of intercepting the liquid in the pipeline, and workers need to use great effort when rotating the handle on the valve, thereby increasing the labor capacity of the workers.
Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a movable stop check valve is provided to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides a movable joint stop check valve to solve the problems that the existing stop check valve has seepage phenomenon in the process of stopping liquid in a pipeline, and workers need to use great effort when rotating a handle on the valve, so that the labor capacity of the workers is increased.
The invention relates to a purpose and an effect of a movable stop check valve, which are achieved by the following specific technical means: a movable connection stop check valve comprises a valve body, a threaded rod and a movable cover plate; the lower end of the valve body is fixedly connected with the water inlet pipe, and the right end of the valve body is fixedly connected with the water outlet pipe; the upper end of the valve body is provided with a fixed flange plate which is connected with a movable flange plate through bolts; the upper end of the threaded rod sequentially penetrates through the fixed flange plate and the movable flange plate and is in threaded connection with the clamping cap; the upper end of the movable cover plate is connected with the connecting plate through bolts.
Furthermore, two clamping blocks are symmetrically arranged on the upper end face of the fixed flange plate, the upper ends of the clamping blocks are of a conical structure, two groups of clamping grooves are symmetrically arranged on the lower end face of the movable flange plate, and the clamping blocks are clamped in the clamping grooves.
Furthermore, a concave groove is formed in the middle of the upper end face of the movable cover plate, the movable cover plate is connected with the connecting plate through a bolt, the lower end of the threaded rod penetrates through the connecting plate and is embedded in the concave groove, and nuts are arranged on the threaded rods at the two ends of the upper end of the connecting plate respectively.
Furthermore, a group of gaskets is annularly arranged on the outer side of the movable cover plate.
Furthermore, the lower end of the valve body is provided with a clamping groove, the rotary cover plate is rotatably connected inside the clamping groove, and the rotary cover plate is located under the movable cover plate.
Further, threaded rod upper end is equipped with the handle, and both ends are equipped with the quad slit about the handle, blocks cap lower extreme and threaded rod threaded connection, and blocks the cap upper end and be the cuboid structure, blocks inside the quad slit that cap upper end can the joint at the handle both ends.
Furthermore, the water outlet pipe is of an L-shaped structure, and the water outlet end of the water outlet pipe is lower than the water inlet end of the water outlet pipe.
Compared with the prior art, the invention has the following beneficial effects:
according to the clamping device, the two clamping blocks are symmetrically arranged on the upper end face of the fixed flange plate and are nested in the clamping groove at the lower end of the movable flange plate, so that a worker can limit the fixed flange plate and the movable flange plate in the process of aligning the two flange plates, the movable flange plate is prevented from shaking left and right, the worker can fix the movable flange plate conveniently, and the clamping blocks can be clamped in the clamping groove more conveniently by the worker due to the conical structure at the upper ends of the clamping blocks.
Rotate the setting of connection in the inside of draw-in groove through rotatory apron for liquid enters into the inside in-process of valve body from the inlet tube, the impact force that liquid flows can be adjusted the horizontality with rotatory apron from the horizontality, guarantee liquid at the inside normal flow of pipeline, when the emergence accident situation liquid refluence, liquid enters into the valve body from the outlet pipe, the impact force of this moment liquid is with rotatory apron from vertical state adjustment to the horizontality, the automatic cutout of the inside liquid of pipeline has been realized.
Can joint setting inside the quad slit at the handle both ends through calorie cap upper end for when need wave the handle and drive the removable cover oscilaltion, will block the cap and take off from the threaded rod top, then the joint can increase the length of handle in the inside quad slit of handle, and is more laborsaving when letting the staff rotate the handle.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic sectional structural view of the valve body of the present invention.
Fig. 3 is a schematic structural view of the rotating cover plate of the present invention when it is unfolded.
Fig. 4 is a schematic sectional structural view of the removable cover plate of the present invention.
Fig. 5 is a schematic view of a threaded rod construction of the present invention.
Fig. 6 is an enlarged schematic view of the structure of fig. 5 a according to the present invention.
Fig. 7 is a schematic view of the handle structure of the present invention.
Fig. 8 is a schematic structural view of the internal device of the valve body of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a valve body; 101. fixing a flange plate; 102. a card slot; 1011. a clamping block; 2. a water inlet pipe; 3. a water outlet pipe; 4. a movable flange plate; 401. a clamping groove; 5. a threaded rod; 501. a clamping cap; 6. a handle; 7. a removable cover plate; 701. a concave groove; 702. a gasket; 8. a connecting plate; 9. the cover plate is rotated.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 8:
the invention provides a movable connection stop check valve, which comprises a valve body 1, a threaded rod 5 and a movable cover plate 7; the lower end of the valve body 1 is fixedly connected with a water inlet pipe 2, and the right end of the valve body 1 is fixedly connected with a water outlet pipe 3; the upper end of the valve body 1 is provided with a fixed flange plate 101, and the fixed flange plate 101 is connected with the movable flange plate 4 through bolts; the upper end of the threaded rod 5 sequentially penetrates through the fixed flange plate 101 and the movable flange plate 4 and is in threaded connection with the clamping cap 501; the upper end of the movable cover plate 7 is connected with the connecting plate 8 through bolts.
Wherein, fixed flange dish 101 up end symmetry is equipped with two fixture blocks 1011, fixture block 1011 upper end is the toper structure, movable flange dish 4's lower terminal surface symmetry is equipped with two sets of screens groove 401, and the fixture block 1011 joint is inside screens groove 401, in use, the workman is in the in-process to adjusting well two ring flanges and has inconvenience, fixture block 1011 joint through fixed flange dish 101 upper end is in the inside setting in movable flange dish 4 lower extreme screens groove 401, can carry on spacingly fixed flange dish 101 with movable flange dish 4, prevent movable flange dish 4's horizontal rocking, thereby be convenient for the workman to fix movable flange dish 4.
Wherein, removable cover 7's up end intermediate position is equipped with concave groove 701, and removable cover 7 and connecting plate 8 bolted connection, 5 lower extremes of threaded rod pass connecting plate 8 and nestification are inside concave groove 701, be equipped with a nut on the threaded rod 5 at 8 upper end both ends of connecting plate respectively, in use, when needs block the inside liquid flow of pipeline, it drives removable cover 7 at the inside downstream of valve body 1 to rotate threaded rod 5, thereby plug up the delivery port of inlet tube 2, liquid has been prevented to flow inside the pipeline, when needs liquid continues to flow inside the pipeline, reverse rotation shank of bolt 5, thereby drive removable cover 7 upward movement, guarantee the unobstructed of pipeline.
Wherein, the outside of removable cover 7 is equipped with a set of gasket 702 in the annular, and in use, through the setting of gasket 702, can increase the leakproofness of removable cover 7 and valve body 1 inner wall for removable cover 7 can prevent the liquid seepage when blocking the inside liquid of pipeline, thereby strengthens the practicality of device.
Wherein, 1 lower extreme of valve body is equipped with draw-in groove 102, and rotatory apron 9 rotates to be connected inside draw-in groove 102, and rotatory apron 9 is located removable cover 7 under, in use, when removable cover 7 removes valve body 1 upper end, liquid can enter into valve body 1 inside from inlet tube 2, the impact force that flows at this in-process liquid adjusts rotatory apron 9 from the horizontality to the horizontality, guarantee the normal flow of liquid in the pipeline inside, when taking place unexpected condition liquid refluence, liquid enters into valve body 1 from outlet pipe 3, the impact force of liquid at this moment adjusts rotatory apron 9 from vertical state to the horizontality, thereby liquid refluence has been blocked, the practicality of this device has been improved.
Wherein, 5 upper ends of threaded rod are equipped with handle 6, and both ends are equipped with the quad slit about the handle, card cap 501 lower extreme and 5 threaded connection of threaded rod, and card cap 501 upper end is the cuboid structure, card cap 501 upper end can the joint inside the quad slit at 6 both ends of handle, in use, in order to let removable cover 7 reciprocate in 1 inside of valve body, need drive the rotation of threaded rod 5 through shaking handle 6, and will block cap 501 and take off from 6 tops of threaded rod, then the joint is in the quad slit of 6 inside handles, can increase the length of handle 6, it is more laborsaving when letting staff twist grip 6.
Wherein, outlet pipe 3 is L type structure, and the play water end of outlet pipe 3 is lower than the end of intaking, and in use, through the play water end of outlet pipe 3 setting lower than the end of intaking for when the inside liquid of pipeline flows backward, liquid gathers at the inside of outlet pipe 3 at first, thereby has slowed down the speed of the inside liquid backward flow of pipeline.
The specific use mode and function of the embodiment are as follows:
in the invention, the rotating handle 6 drives the threaded rod 5 to rotate, the threaded rod 5 penetrates through the connecting plate 8, and the threaded rods 5 at the two ends of the upper end of the connecting plate 8 are respectively provided with a nut, so that the threaded rod 5 can rotate to drive the movable cover plate 7 to move upwards, then liquid in the pipeline enters the valve body 1 from the water inlet pipe 2, in the process, the impact force of the flowing liquid adjusts the rotary cover plate 9 from the horizontal state to the horizontal state, the normal flowing of the liquid in the pipeline is ensured, when the liquid flows backwards in an unexpected situation, the liquid enters the valve body 1 from the water outlet pipe 3, the impact force of the liquid adjusts the rotary cover plate 9 from the vertical state to the horizontal state, the automatic cut-off is realized, the loss of production and life is prevented, and when the liquid in the pipeline flows backwards through the arrangement that the water outlet end of the water outlet pipe 3 is lower than the water inlet end, liquid is gathered at the outlet pipe 3 inside at first to slowed down the speed of the inside liquid reflux of pipeline, when removable cover 7 joint is inside valve body 1 lower extreme draw-in groove 102, be equipped with the setting of a set of gasket 702 through removable cover 7 outside annular, can increase the leakproofness of removable cover 7 and valve body 1 inner wall, make removable cover 7 can prevent the liquid seepage when blocking the inside liquid of pipeline, thereby strengthen the practicality of device.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. A kind of loose joint stop check valve, characterized by: comprises a valve body (1), a threaded rod (5) and a movable cover plate (7); the lower end of the valve body (1) is fixedly connected with the water inlet pipe (2), and the right end of the valve body (1) is fixedly connected with the water outlet pipe (3); the upper end of the valve body (1) is provided with a fixed flange plate (101), and the fixed flange plate (101) is connected with the movable flange plate (4) through bolts; the upper end of the threaded rod (5) sequentially penetrates through the fixed flange (101) and the movable flange (4) and is in threaded connection with the clamping cap (501); the upper end of the movable cover plate (7) is connected with the connecting plate (8) through bolts.
2. The check valve of claim 1, wherein: two clamping blocks (1011) are symmetrically arranged on the upper end face of the fixed flange plate (101), the upper ends of the clamping blocks (1011) are of a conical structure, two sets of clamping grooves (401) are symmetrically arranged on the lower end face of the movable flange plate (4), and the clamping blocks (1011) are clamped inside the clamping grooves (401).
3. The check valve of claim 1, wherein: a concave groove (701) is formed in the middle of the upper end face of the movable cover plate (7), the movable cover plate (7) is connected with the connecting plate (8) through a bolt, the lower end of the threaded rod (5) penetrates through the connecting plate (8) and is embedded inside the concave groove (701), and nuts are arranged on the threaded rods (5) at two ends of the upper end of the connecting plate (8) respectively.
4. The check valve of claim 1, wherein: and a group of gaskets (702) are annularly arranged on the outer side of the movable cover plate (7).
5. The check valve of claim 1, wherein: the lower end of the valve body (1) is provided with a clamping groove (102), the rotary cover plate (9) is rotatably connected inside the clamping groove (102), and the rotary cover plate (9) is located under the movable cover plate (7).
6. The check valve of claim 1, wherein: threaded rod (5) upper end is equipped with handle (6), and both ends are equipped with the quad slit about the handle, block cap (501) lower extreme and threaded rod (5) threaded connection, and block cap (501) upper end and be the cuboid structure, block cap (501) upper end can the joint inside the quad slit at handle (6) both ends.
7. The check valve of claim 1, wherein: the water outlet pipe (3) is of an L-shaped structure, and the water outlet end of the water outlet pipe (3) is lower than the water inlet end.
CN202111225766.6A 2021-10-21 2021-10-21 Loose joint stop check valve Pending CN113969990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111225766.6A CN113969990A (en) 2021-10-21 2021-10-21 Loose joint stop check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111225766.6A CN113969990A (en) 2021-10-21 2021-10-21 Loose joint stop check valve

Publications (1)

Publication Number Publication Date
CN113969990A true CN113969990A (en) 2022-01-25

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Application Number Title Priority Date Filing Date
CN202111225766.6A Pending CN113969990A (en) 2021-10-21 2021-10-21 Loose joint stop check valve

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CN (1) CN113969990A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100986662B1 (en) * 2009-06-17 2010-10-11 한국수자원공사 A opening and shutting apparatus of multi type valve
CN102563142A (en) * 2012-02-08 2012-07-11 张关池 Improved single-disc adjustable check valve
CN108612881A (en) * 2018-05-28 2018-10-02 江苏安普阀门机械有限公司 A kind of marine bronze male thread stop and check valve
CN208268485U (en) * 2018-04-26 2018-12-21 江苏天域阀业制造有限公司 One kind preventing adverse current valve body
CN210266104U (en) * 2019-06-09 2020-04-07 肯佐控制设备（上海）有限公司 Exquisite type angle stroke electric actuator
CN212155927U (en) * 2020-05-25 2020-12-15 浙江前钧阀门科技有限公司 Stainless steel check valve
CN212584481U (en) * 2020-04-23 2021-02-23 天津市铭振科技发展有限公司 Groove flange with stable installation effect

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100986662B1 (en) * 2009-06-17 2010-10-11 한국수자원공사 A opening and shutting apparatus of multi type valve
CN102563142A (en) * 2012-02-08 2012-07-11 张关池 Improved single-disc adjustable check valve
CN208268485U (en) * 2018-04-26 2018-12-21 江苏天域阀业制造有限公司 One kind preventing adverse current valve body
CN108612881A (en) * 2018-05-28 2018-10-02 江苏安普阀门机械有限公司 A kind of marine bronze male thread stop and check valve
CN210266104U (en) * 2019-06-09 2020-04-07 肯佐控制设备（上海）有限公司 Exquisite type angle stroke electric actuator
CN212584481U (en) * 2020-04-23 2021-02-23 天津市铭振科技发展有限公司 Groove flange with stable installation effect
CN212155927U (en) * 2020-05-25 2020-12-15 浙江前钧阀门科技有限公司 Stainless steel check valve

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Application publication date: 20220125