CN210034548U

CN210034548U - Copper-plastic high-strength composite double check valve

Info

Publication number: CN210034548U
Application number: CN201920465850.7U
Authority: CN
Inventors: 顾静
Original assignee: Jiangsu Tongyu Valve Co Ltd
Current assignee: Jiangsu Tongyu Valve Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-02-07
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a compound two check valves of high strength are moulded to copper, the water control valve comprises a valve body, the water inlet has been seted up to one side outer wall of valve body, and the opposite side outer wall of valve body has seted up the delivery port, the inner wall of delivery port has fixed pipe through threaded connection, the both sides inner wall of fixed pipe has same collar through the bolt fastening, and the both sides inner wall of collar has same cross mounting bracket through the bolt fastening, the axis department of cross mounting bracket one side outer wall has seted up the installing port, and the inner wall of installing port is pegged graft and is had the connecting rod, the one end outer wall of connecting rod has first case through the bolt fastening, and the other end outer wall of connecting rod has cup jointed. The utility model discloses a set up the case of two not isostructures in the valve body, avoid the easy problem of blockking up of case of isostructure, solved the easy problem of blockking up of current check valve case, through set up buffer gear at the valve body, lead to second case and valve body friction impaired when avoiding rivers undulant.

Description

Copper-plastic high-strength composite double check valve

Technical Field

The utility model relates to a check valve technical field especially relates to a compound two check valves of high strength are moulded to copper.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The stop valve and the stop valve are combined for use, and the safety isolation effect can be achieved. The disadvantages are high resistance and poor sealing performance when closed.

The existing double check valves are all used for checking through two same structures, and the mode easily causes the blockage of the check valves and influences the service life of the check valves.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a copper-plastic high-strength composite double check valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a copper-plastic high-strength composite double check valve comprises a valve body, wherein a water inlet is formed in the outer wall of one side of the valve body, a water outlet is formed in the outer wall of the other side of the valve body, the inner wall of the water outlet is connected with a fixing pipe through threads, the inner walls of the two sides of the fixing pipe are fixed with a same mounting ring through bolts, the inner walls of the two sides of the mounting ring are fixed with a same cross-shaped mounting frame through bolts, a mounting opening is formed in the central axis of the outer wall of one side of the cross-shaped mounting frame, a connecting rod is inserted into the inner wall of the mounting opening, a first valve core is fixed to the outer wall of one end of the connecting rod through bolts, a filter disc is sleeved on the outer wall of the other end of the connecting rod, a first spring is sleeved on the outer wall of one side, close to the water inlet, and a buffer mechanism is arranged on the inner wall of one side of the valve body.

Preferably buffer gear includes the install bin, and the rectangle opening has been seted up to one side outer wall of install bin, the spout has all been seted up to rectangle open-ended both sides inner wall, and the inner wall sliding connection of two spouts has same mounting panel.

Preferably, a second spring is connected between the outer wall of the bottom of the mounting plate and the inner wall of the bottom of the mounting box, and a rubber pad is bonded on the outer wall of one side, far away from the second spring, of the mounting plate.

Preferably, the outer wall of the top of the valve body is provided with an access hole, and the inner wall of the access hole is fixed with a valve cover through a bolt.

And preferably, the outer wall of one side of the cross-shaped mounting frame is fixed with a guide plate through a bearing.

Preferably, the diameter of the second valve core is matched with that of the water inlet, and the diameter of the filter disc is matched with that of the water outlet.

The utility model has the advantages that:

1. this compound two check valves of high strength is moulded to copper, through the case that sets up two isotructures in the valve body, avoids the easy problem of blockking up of case of looks isostructure, again through setting up the filter disc in first case department, avoids debris to make first case block up, has solved the easy problem of blockking up of current check valve case.

2. This compound two check valves of high strength is moulded to copper, through set up buffer gear at the valve body, leads to second case and valve body friction impaired when avoiding rivers undulant, sets up the valve gap again and conveniently maintains the case, prolongs the life of check valve.

Drawings

Fig. 1 is a schematic sectional structural view of a copper-plastic high-strength composite double check valve provided by the present invention;

fig. 2 is the utility model provides a copper is moulded compound double check valve's of high strength installation ring structure sketch map.

In the figure: the valve comprises a valve body 1, a water inlet 2, a water outlet 3, a fixing pipe 4, a mounting ring 5, a first valve core 6, a first spring 7, a filter disc 8, a cross mounting frame 9, a guide plate 10, a valve cover 11, a crank arm 12, a second valve core 13 and a buffer mechanism 14.

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.

Referring to fig. 1-2, a copper-plastic high-strength composite double check valve comprises a valve body 1, a water inlet 2 is arranged on the outer wall of one side of the valve body 1, a water outlet 3 is arranged on the outer wall of the other side of the valve body 1, the inner wall of the water outlet 3 is connected with a fixed pipe 4 through a thread, the inner walls of the two sides of the fixed pipe 4 are fixed with a same mounting ring 5 through bolts, the inner walls of the two sides of the mounting ring 5 are fixed with a same cross mounting rack 9 through bolts, a mounting opening is arranged at the central axis of the outer wall of one side of the cross mounting rack 9, a connecting rod is inserted into the inner wall of the mounting opening, a first valve core 6 is fixed on the outer wall of one end of the connecting rod through a bolt, a filter disc 8 is sleeved on the outer wall of the other end of the connecting rod, a first spring 7 is sleeved on the outer wall of one side of the connecting rod close, one side inner wall of valve body 1 is provided with buffer gear 14, buffer gear 14 includes the install bin, and the rectangle opening has been seted up to one side outer wall of install bin, the spout has all been seted up to rectangle open-ended both sides inner wall, and the inner wall sliding connection of two spouts has same mounting panel, be connected with the second spring between mounting panel bottom outer wall and the install bin bottom inner wall, and one side outer wall that the second spring was kept away from to the mounting panel bonds there is the rubber pad, the access hole has been seted up to 1 top outer wall of valve body, and the inner wall of access hole has valve gap 11 through the bolt fastening, one side outer wall of cross mounting bracket 9 all is fixed with guide plate 10 through the bearing, the diameter of second valve core 13 and the diameter phase-match of water inlet 2.

The working principle is as follows: during the use, when rivers get into valve body 1 from water inlet 2, second valve core 13 removes to the rivers direction under the pressure of rivers, at this moment second valve core 13 by rivers jack-up and buffer gear 14 contact, rivers flow out from fixed pipe 4 through filter disc 8, if during the water backward flow, rivers can compress first valve body 7, close valve body 1 when first valve body 7 and collar 5 contact, prevent the rivers backward flow, second valve core 13 descends naturally and closes water inlet 2 when water inlet 2 does not have rivers to flow in.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A copper-plastic high-strength composite double check valve comprises a valve body (1) and is characterized in that a water inlet (2) is formed in the outer wall of one side of the valve body (1), a water outlet (3) is formed in the outer wall of the other side of the valve body (1), the inner wall of the water outlet (3) is connected with a fixed pipe (4) through threads, the inner walls of the two sides of the fixed pipe (4) are fixed with a same mounting ring (5) through bolts, the inner walls of the two sides of the mounting ring (5) are fixed with a same cross mounting frame (9) through bolts, a mounting opening is formed in the central axis of the outer wall of one side of the cross mounting frame (9), a connecting rod is inserted into the inner wall of the mounting opening, a first valve core (6) is fixed on the outer wall of one end of the connecting rod through bolts, a filter disc (8) is sleeved on the outer wall of the other end, a crank arm (12) is fixed on the inner wall of one side, close to the water inlet (2), of the valve body (1) through a bearing, a second valve core (13) is fixed on the outer wall of one side of the crank arm (12) through a bolt, and a buffer mechanism (14) is arranged on the inner wall of one side of the valve body (1).

2. The composite double check valve with high strength made of copper and plastic according to claim 1, wherein the buffer mechanism (14) comprises an installation box, a rectangular opening is formed in the outer wall of one side of the installation box, sliding grooves are formed in the inner walls of the two sides of the rectangular opening, and the same installation plate is connected to the inner walls of the two sliding grooves in a sliding manner.

3. The composite double check valve with high strength and copper plastic as claimed in claim 2, wherein a second spring is connected between the outer wall of the bottom of the mounting plate and the inner wall of the bottom of the mounting box, and a rubber pad is bonded on the outer wall of one side of the mounting plate away from the second spring.

4. The copper-plastic high-strength composite double check valve as claimed in claim 1, wherein an access hole is formed in the outer wall of the top of the valve body (1), and a valve cover (11) is fixed to the inner wall of the access hole through a bolt.

5. The copper-plastic high-strength composite double check valve as claimed in claim 1, wherein a guide plate (10) is fixed to the outer wall of one side of the cross mounting frame (9) through a bearing.

6. The copper-plastic high-strength composite double check valve as claimed in claim 1, wherein the diameter of the second valve core (13) is matched with the diameter of the water inlet (2), and the diameter of the filter disc (8) is matched with the diameter of the water outlet (3).