CN210484689U - Double-valve-flap type low-resistance backflow preventer - Google Patents
Double-valve-flap type low-resistance backflow preventer Download PDFInfo
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- CN210484689U CN210484689U CN201921604412.0U CN201921604412U CN210484689U CN 210484689 U CN210484689 U CN 210484689U CN 201921604412 U CN201921604412 U CN 201921604412U CN 210484689 U CN210484689 U CN 210484689U
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- backflow preventer
- low resistance
- column
- resistance backflow
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Abstract
The utility model discloses a low resistance backflow preventer of bivalve lamella formula, including valve body and buckle post, the welding of the upper and lower both sides of valve body has the connection cover, and the upper and lower both sides of connection cover are provided with the valve plate, settle in the upper and lower both sides of valve plate has the UNICOM valve, outside one side that the connection cover is close to the valve body is connected with the valve clack cover, and the top of valve clack cover is connected with spacing post, the closing plate is installed to one side of spacing post, and one side of closing plate installs the spout, the buckle post is connected in the bottom of spout, the top of valve plate distributes and has the valve opening, and one side of valve opening runs through there is the guide arm, the left surface middle part of valve body is fixed. This bivalve lamella formula low resistance backflow preventer can make the welding carry out the position activity with limit handle post and movable rod together, and the effectual subassembly of bivalve lamella formula low resistance backflow preventer of will blocks is spacing buckle between limit handle post and movable rod, and the loose condition of installation appears in the spare part that can prevent low resistance backflow preventer.
Description
Technical Field
The utility model relates to a low resistance backflow preventer technical field specifically is a low resistance backflow preventer of bivalve lamella formula.
Background
The low-resistance backflow preventer consists of two water inlet check valves and two water outlet check valves which are separated from each other and are mutually independent and a water drain valve for fluid safety control, and is a hydraulic control combination device which strictly limits that pressure water in a pipeline can only flow in a one-way mode.
In use, the low-resistance backflow preventer in the market is not enough in strength, external equipment is not firmly fixed, fittings of the low-resistance backflow preventer are not installed, a pipeline limiting structure is not firm enough, and the problem that installation parts of the low-resistance backflow preventer are not loose is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low resistance backflow preventer of bivalve lamella formula to solve the low resistance backflow preventer in use on the market that proposes in the above-mentioned background art, intensity is not enough itself, and external equipment is fixed firm inadequately, causes the installation of low resistance backflow preventer accessory not hard up, and the pipeline is injectd the structure and is firm inadequately, causes the not hard up problem of low resistance backflow preventer installation spare part easily.
In order to achieve the above object, the utility model provides a following technical scheme: a double-valve-flap type low-resistance backflow preventer comprises a valve body and a buckling column, wherein connecting covers are welded on the upper side and the lower side of the valve body, and the upper and lower sides of the connecting cover are provided with valve plates, the upper and lower sides of the valve plates are provided with communicating valves, one side of the connecting cover close to the outside of the valve body is connected with a valve clack cover, and the top end of the valve clack cover is connected with a limit column, one side of the limit column is provided with a sealing plate, one side of the sealing plate is provided with a chute, the buckling column is connected with the bottom end of the chute, the top end of the valve plate is distributed with valve holes, a guide rod penetrates through one side of the valve hole, a side protection frame is fixed in the middle of the left surface of the valve body, installation clamps are arranged on the upper side and the lower side of the side protection frame, the installation clamp is characterized in that bolt columns are arranged on two sides of the installation clamp, threaded columns are arranged on two sides of the connection cover, a movable rod is connected to one side of each threaded column, and a limited handle column is installed on one side of each movable rod.
Preferably, the connecting cover is fixedly connected with the communicating valve, and the valve plate is vertical to the communicating valve.
Preferably, the limiting column is fixedly connected with the valve clack cover, and the limiting column is movably connected with the closing plate.
Preferably, the inner wall of the sealing plate is tightly attached to the outer wall of the sliding groove, and the sealing plate and the buckling column form a sliding structure through the sliding groove.
Preferably, the valve hole is movably connected with the guide rod, and the valve plate forms a clamping structure with the guide rod through the valve hole.
Preferably, the bolt column is in threaded connection with the mounting clamp, and the edge protection frame and the mounting clamp form a buckle structure through the bolt column.
Preferably, be welded connection between movable rod and the limit handle post, and the screw thread post passes through the movable rod and constitutes the helicitic texture with the limit handle post.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a vertical structure is between valve plate and the UNICOM valve, be fixed connection between spacing post and the valve clack cover, and be swing joint between spacing post and the closing plate, help strengthening the intensity of itself of low resistance backflow preventer, do benefit to promoting the installation stability of low resistance backflow preventer, make spacing block of spacing post between the closing plate, can install the closing plate between valve clack cover and spacing post, be convenient for slide the spacing of movable closing plate, can reach effectual fixed protection effect to external equipment, help the accessory of low resistance backflow preventer to appear the condition of external damage, can make the accessory of low resistance backflow preventer have independent enclosure space;
2. the utility model discloses a valve plate constitutes block structure through valve opening and guide arm, and limit fender bracket passes through bolt post and settles the card and constitute buckle structure, can carry out spare part block between valve plate and the valve opening, effectively install the pipeline limit structure between valve plate and valve opening, can reach the effect of spare part block to the pipeline limit structure of low resistance backflow preventer, the user can install the buckle between limit fender bracket and settling card with the subassembly of bivalve lamella formula low resistance backflow preventer, make bolt post buckle from top to bottom between limit fender bracket and settling card, can reach the reinforcement effect to the subassembly of bivalve lamella formula low resistance backflow preventer;
3. the utility model discloses a screw post passes through the movable rod and constitutes helicitic texture with the limit handle post, can make welding limit handle post and movable rod that the welding is in the same place carry out the position activity, and the effectual subassembly spacing buckle with the low resistance backflow preventer of bivalve lamella formula appears the installation not hard up condition between limit handle post and movable rod, the spare part that can prevent low resistance backflow preventer.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a left side view of the structure of the present invention;
fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.
In the figure: 1. a valve body; 2. a connecting cover; 3. a valve plate; 4. a communication valve; 5. a limiting column; 6. a closing plate; 7. a valve flap cover; 8. a chute; 9. a buckling column; 10. a valve bore; 11. a guide bar; 12. a side guard frame; 13. a bolt column; 14. placing a card; 15. a threaded post; 16. a movable rod; 17. a handle limiting column.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a double-valve-flap type low-resistance backflow preventer comprises a valve body 1 and a buckling column 9, wherein connecting covers 2 are welded on the upper side and the lower side of the valve body 1, valve plates 3 are arranged on the upper side and the lower side of each connecting cover 2, communicating valves 4 are arranged on the upper side and the lower side of each valve plate 3, a valve flap cover 7 is connected on one side, close to the outer portion of the valve body 1, of each connecting cover 2, a limiting column 5 is connected to the top end of each valve flap cover 7, a sealing plate 6 is installed on one side of each limiting column 5, a sliding chute 8 is installed on one side of each sealing plate 6, the buckling column 9 is connected to the bottom end of each sliding chute 8, valve holes 10 are distributed in the top end of each valve plate 3, guide rods 11 penetrate through one side of each valve hole 10, a side protection frame 12 is fixed in the middle of the left surface of the valve body 1, installing clamps 14 are arranged on the upper side and the lower side of each side protection frame, one side of the movable rod 16 is provided with a limit handle column 17, the movable closing plate 6 can be clamped between the valve clack cover 7 and the limit column 5 through the sliding of the closing plate 6 tightly attached to the sliding groove 8, the closing plate 6 can be slidably mounted on the sliding groove 8 and the buckling column 9, so that the equipment of the low-resistance backflow preventer is mounted and protected between the closing plate 6 and the valve clack cover 7, can achieve effective fixing and protecting effects on external equipment, and through the fixed welding between the valve body 1 and the connecting cover 2, the valve plate 3 can be firmly welded between the communicating valve 4 and the connecting cover 2, which is helpful to enhance the strength of the low resistance backflow preventer, and through the movement of the guide rod 11 between the valve plate 3 and the valve hole 10, the guide rod 11 can be clamped between the valve plate 3 and the valve hole 10, the valve plate 3 and the valve hole 10 can be clamped by parts, and the pipeline limiting structure is effectively arranged between the valve plate 3 and the valve hole 10.
Connect for fixed connection between cover 2 and the UNICOM's valve 4, and be vertical structure between valve plate 3 and the UNICOM's valve 4, through valve body 1 and the fixed welding between the cover 2, can firmly weld valve plate 3 between UNICOM's valve 4 and connection cover 2, help the intensity of itself of the low resistance backflow preventer of reinforcing, do benefit to the installation stability who promotes low resistance backflow preventer.
Be fixed connection between spacing post 5 and the valve clack cover 7, and be swing joint between spacing post 5 and the closing plate 6, through the activity of closing plate 6 between spacing post 5, can be with the closing plate 6 block of activity between valve clack cover 7 and spacing post 5 for spacing block of spacing post 5 is between closing plate 6, can install closing plate 6 between valve clack cover 7 and spacing post 5, and it is spacing to be convenient for slide movable closing plate 6.
Closely laminate between the inside inner wall of closing plate 6 and the outside outer wall of spout 8, and closing plate 6 constitutes sliding structure through spout 8 and buckle post 9, it can be with 6 block of closing plate 6 block of activity between valve clack cover 7 and spacing post 5 to hug closely the slip between spout 8 through closing plate 6, can be with closing plate 6 slidable mounting at spout 8 and buckle post 9, make the equipment fixing protection of low resistance backflow preventer between closing plate 6 and valve clack cover 7, can reach effectual fixed protection effect to external equipment, the accessory that helps low resistance backflow preventer appears external damage's the condition, the accessory that can make low resistance backflow preventer has solitary enclosure space.
Be swing joint between valve opening 10 and the guide arm 11, and valve plate 3 constitutes the block structure through valve opening 10 and guide arm 11, through the activity of guide arm 11 between valve plate 3 and valve opening 10, can be with 11 blocks of guide arm between valve plate 3 and valve opening 10, can carry out the spare part block between valve plate 3 and the valve opening 10, effectual structure installation is injectd with the pipeline between valve plate 3 and valve opening 10, the pipeline to low resistance refluence preventer is injectd the structure and can be reached the effect of spare part block.
The bolt column 13 is in threaded connection with the installation card 14, the edge protection frame 12 forms a buckling structure with the installation card 14 through the bolt column 13, the bolt column 13 between the edge protection frame 12 and the installation card 14 is screwed, so that the bolt column 13 is buckled between the edge protection frame 12 and the installation card 14 in a threaded mode, the clamping effect of two sides can be achieved between the edge protection frame 12 and the installation card 14, a user can buckle components of the double-valve-flap type low-resistance backflow preventer between the edge protection frame 12 and the installation card 14, the bolt column 13 is buckled between the edge protection frame 12 and the installation card 14 in an up-and-down mode, and the reinforcing effect can be achieved on the components of the double-valve-flap type low-resistance backflow preventer.
Be welded connection between movable rod 16 and the limit handle post 17, and threaded post 15 passes through movable rod 16 and limit handle post 17 constitution helicitic texture, limit handle post 17 between valve body 1 and the connection cover 2 through pushing away, nevertheless belong to welded connection between movable limit handle post 17 and the movable rod 16, when the user promotes limit handle post 17 and movable rod 16, make limit handle post 17 and movable rod 16 welded together drive threaded post 15 and carry out the screw motion, consequently, the screw thread of threaded post 15 can drive limit handle post 17 and movable rod 16 welded together, can make limit handle post 17 and movable rod 16 welded together carry out the position activity, effectual with the spacing buckle of the subassembly of two valve lamella formula low resistance backflow preventer between limit handle post 17 and movable rod 16, the not hard up condition of installation can prevent the spare part of low resistance backflow preventer from appearing.
The working principle is as follows: when the double-valve-flap type low-resistance backflow preventer is used, firstly, the movable sealing plate 6 can be clamped between the valve flap cover 7 and the limiting post 5 by the sliding of the sealing plate 6 tightly attached to the sliding groove 8, the sealing plate 6 can be slidably arranged on the sliding groove 8 and the clamping post 9, the equipment of the low-resistance backflow preventer is arranged and protected between the sealing plate 6 and the valve flap cover 7, the effective fixing and protecting effect on external equipment can be achieved, the external damage of the accessories of the low-resistance backflow preventer is facilitated, the accessories of the low-resistance backflow preventer can have independent closed spaces, the handle limiting post 17 between the valve body 1 and the connecting cover 2 is pushed, however, the movable handle limiting post 17 and the movable rod 16 are in welded connection, when a user pushes the handle limiting post 17 and the movable rod 16, the handle limiting post 17 and the movable rod 16 which are welded together drive the threaded post 15 to perform threaded motion, therefore, the thread of the thread column 15 can drive the handle limiting column 17 and the movable rod 16 which are welded together, so that the handle limiting column 17 and the movable rod 16 which are welded together can move in position, the assembly of the double-valve-flap type low-resistance backflow preventer is effectively limited and clamped between the handle limiting column 17 and the movable rod 16, the loose installation situation of parts of the low-resistance backflow preventer can be prevented, the bolt column 13 between the edge protection frame 12 and the placing clamp 14 is screwed, so that the bolt column 13 is clamped between the edge protection frame 12 and the placing clamp 14 in a threaded manner, the effect of clamping two sides between the edge protection frame 12 and the placing clamp 14 can be achieved, a user can install and clamp the assembly of the double-valve-flap type low-resistance backflow preventer between the edge protection frame 12 and the placing clamp 14, so that the bolt column 13 is vertically clamped between the edge protection frame 12 and the placing clamp 14, and the assembly of the double-valve-flap type low-resistance backflow preventer can achieve the backflow strengthening effect, through the activity of guide arm 11 between valve plate 3 and valve opening 10, can be with the 11 block of guide arm between valve plate 3 and valve opening 10, can carry out the spare part block between valve plate 3 and the valve opening 10, effectually prescribe a limit to the pipeline structure and install between valve plate 3 and valve opening 10, prescribe a limit to the pipeline of low resistance backflow preventer structure and can reach the effect of spare part block, through the activity of closing plate 6 between spacing post 5, can be with the 6 blocks of closing plate 6 block of activity between valve clack cover 7 and spacing post 5, make the spacing block of spacing post 5 between closing plate 6, can install closing plate 6 between valve clack cover 7 and spacing post 5, it is spacing to be convenient for slide closing plate 6 with the activity.
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 (7)
1. The utility model provides a low resistance backflow preventer of bivalve lamella formula, includes valve body (1) and buckle post (9), its characterized in that: the upper side and the lower side of the valve body (1) are welded with connecting covers (2), valve plates (3) are arranged on the upper side and the lower side of each connecting cover (2), communicating valves (4) are arranged on the upper side and the lower side of each valve plate (3), one side, close to the valve body (1), of each connecting cover (2) is connected with a valve clack cover (7), the top end of each valve clack cover (7) is connected with a limiting column (5), a sealing plate (6) is installed on one side of each limiting column (5), a sliding groove (8) is installed on one side of each sealing plate (6), a buckling column (9) is connected to the bottom end of each sliding groove (8), valve holes (10) are distributed in the top end of each valve plate (3), a guide rod (11) penetrates through one side of each valve hole (10), a side protection frame (12) is fixed in the middle of the left surface of the valve body (1), and installation clamps, bolt columns (13) are arranged on two sides of the arrangement clamp (14), threaded columns (15) are arranged on two sides of the connection cover (2), a movable rod (16) is connected to one side of each threaded column (15), and a limited handle column (17) is arranged on one side of each movable rod (16).
2. The double-valve flap type low resistance backflow preventer as claimed in claim 1, wherein: the connecting cover (2) is fixedly connected with the communicating valve (4), and the valve plate (3) is vertical to the communicating valve (4).
3. The double-valve flap type low resistance backflow preventer as claimed in claim 1, wherein: the limiting column (5) is fixedly connected with the valve clack cover (7), and the limiting column (5) is movably connected with the closing plate (6).
4. The double-valve flap type low resistance backflow preventer as claimed in claim 1, wherein: the inner wall of the sealing plate (6) is tightly attached to the outer wall of the sliding groove (8), and the sealing plate (6) and the clamping column (9) form a sliding structure through the sliding groove (8).
5. The double-valve flap type low resistance backflow preventer as claimed in claim 1, wherein: the valve hole (10) is movably connected with the guide rod (11), and the valve plate (3) forms a clamping structure with the guide rod (11) through the valve hole (10).
6. The double-valve flap type low resistance backflow preventer as claimed in claim 1, wherein: the bolt column (13) is in threaded connection with the installation card (14), and the edge protection frame (12) and the installation card (14) form a buckling structure through the bolt column (13).
7. The double-valve flap type low resistance backflow preventer as claimed in claim 1, wherein: the movable rod (16) is connected with the handle limiting column (17) in a welding mode, and the threaded column (15) forms a threaded structure with the handle limiting column (17) through the movable rod (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921604412.0U CN210484689U (en) | 2019-09-25 | 2019-09-25 | Double-valve-flap type low-resistance backflow preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921604412.0U CN210484689U (en) | 2019-09-25 | 2019-09-25 | Double-valve-flap type low-resistance backflow preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484689U true CN210484689U (en) | 2020-05-08 |
Family
ID=70508843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921604412.0U Active CN210484689U (en) | 2019-09-25 | 2019-09-25 | Double-valve-flap type low-resistance backflow preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484689U (en) |
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2019
- 2019-09-25 CN CN201921604412.0U patent/CN210484689U/en active Active
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