CN211449770U - Valve capable of preventing backflow - Google Patents

Abstract

The utility model relates to the technical field of valves, in particular to a valve for preventing backflow, which comprises a valve body, wherein the inner cavity of the valve body is provided with a cavity, the left side of the valve body is provided with a socket along an annular shape, the left side of the valve body is provided with a butt joint pipe, the right side of the butt joint pipe and the position corresponding to the socket are fixedly connected with an insert block along the annular shape, and the right side of the butt joint pipe is inserted into the socket on the left side of the valve body through the insert block; the utility model discloses a establish the connected mode of butt joint pipe and valve body into bolted connection, can effectually make things convenient for the staff to pull down the butt joint pipe promptly, and can take out solid fixed ring through twisting out hexagon socket head cap screw, then can be convenient the only flow valve clack on solid fixed ring maintain or change, and whole process easy operation, need not tear the valve body open, can not cause the influence to other subassemblies in the valve body, only need take off the butt joint pipe can accomplish the change to the only flow valve clack fast, more original change mode possesses obvious excellence.

Description

Valve capable of preventing backflow

Technical Field

The utility model relates to the technical field of valves, concretely relates to valve for preventing refluence.

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. Check valves of this type function to allow flow of the medium in one direction only, but to prevent flow in the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self-weight of the valve flap to act on the valve seat, thereby cutting off the flow.

The valve clack subassembly receives the problem that wearing and tearing or damage appear in the washing away of medium easily after long-time the use, because the inside at the check valve is installed more to the valve clack subassembly, and the inside structure of check valve is comparatively complicated, this just means that follow-up if need maintain the valve clack subassembly or change just can only dismantle whole check valve and just can take out the valve clack subassembly, waste time and energy and troublesome poeration.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a valve that prevents refluence, to prior art's not enough, this design possesses the advantage that conveniently changes the stagnant flow valve clack, has solved the inconvenient problem of changing the stagnant flow valve clack of original device.

The utility model discloses a valve for preventing refluence, which comprises a valve body, the inner chamber of valve body is equipped with the cavity, the socket has been seted up along the annular in the left side of valve body, the left side of valve body is equipped with the butt joint pipe, the right side of butt joint pipe and the position department corresponding with the socket along annular fixedly connected with inserted block, the right side of butt joint pipe is passed through the inserted block and is pegged graft in the left socket of valve body, just the valve body passes through fastening bolt fixed connection with the butt joint pipe and is in the same place, the sliding opening has been seted up on the right side of butt joint pipe inner chamber, the right side of.

The utility model discloses a valve for preventing backflow, wherein, the border department of the right flank of the fixed ring is provided with a groove along the annular equidistance, and the inside of the groove is provided with an inner hexagon bolt, the fixed ring is fixedly connected on the right side of the sliding port through the inner hexagon bolt; the appearance of this design can conveniently take out solid fixed ring and the subassembly on the solid fixed ring.

The utility model discloses a valve for preventing backflow, wherein, the middle part of solid fixed ring side is fixedly connected with the mount of "ten" style of calligraphy, and the side of solid fixed ring is cut apart into four delivery ports through the mount, and the appearance of this design can effectually facilitate the flow of medium, the middle part of mount is fixedly connected with the outer fixed cylinder, the inner chamber sliding connection of outer fixed cylinder has interior movable rod, the left end fixedly connected with stopper of interior movable rod; the appearance of this design can avoid interior movable rod whole roll-off outer fixed cylinder's inner chamber.

The utility model discloses a valve for preventing backflow, wherein, the right-hand member of the inner movable rod is provided with an internal thread, the internal thread at the right-hand member of the inner movable rod is connected with a threaded column by a thread, and the right-hand member of the threaded column is fixedly connected with a flow stopping valve clack; the appearance of this design can effectually conveniently change the valve clack that ends.

The utility model relates to a valve for preventing backflow, wherein, the shape and the size of the flow stopping valve clack are matched with the shape and the size of the fixing ring, and the left side surface of the flow stopping valve clack is attached to the right side surface of the fixing ring; the design is continuous, and the backflow of the medium can be effectively prevented.

The utility model discloses a valve for preventing backflow, wherein, the bolt head at the right end of the inner hexagon bolt is positioned in the groove and is flush with the right side surface of the fixed ring; the appearance of this design can guarantee that the left surface of only flowing valve clack laminates mutually with solid fixed ring's right flank.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a to the pipe, solid fixed ring, the mount, an outer fixed section of thick bamboo, the design of interior movable rod and stagnant flow valve clack isotructure, can effectually make this design possess simple structure, convenient to use's effect, when using, rivers promote in the butt joint pipe and only flow the valve clack and remove to the right side, and flow in the cavity, then can flow from the right-hand member of valve body, when rivers backward flow, can reverse again and promote only flow the valve clack and remove to the left side, and finally laminate with solid fixed ring, play the effect that prevents the backward flow.

2. The utility model discloses a establish the connected mode of butt joint pipe and valve body into bolted connection, can effectually make things convenient for the staff to pull down the butt joint pipe promptly, and can take out solid fixed ring through twisting out hexagon socket head cap screw, then can be convenient the only flow valve clack on solid fixed ring maintain or change, and whole process easy operation, need not tear the valve body open, can not cause the influence to other subassemblies in the valve body, only need take off the butt joint pipe can accomplish the change to the only flow valve clack fast, more original change mode possesses obvious excellence.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural view of the present invention when preventing medium backflow;

FIG. 2 is a schematic diagram of the structure of the present invention allowing the medium to flow from left to right;

FIG. 3 is a schematic view of the split structure of the butt joint pipe and the valve body of the present invention;

fig. 4 is a right side view schematic structural diagram of the fixing ring of the present invention;

fig. 5 is a schematic perspective view of the external fixation cylinder of the present invention;

fig. 6 is a schematic view of the front partial sectional structure of the external fixation cylinder of the present invention.

In the figure: 1. a valve body; 2. a cavity; 3. butt-joint pipes; 31. fastening a bolt; 32. inserting a block; 33. a sliding port; 4. a fixing ring; 41. a hexagon socket head cap screw; 42. a fixed mount; 5. an outer fixed cylinder; 51. an inner movable rod; 511. an internal thread; 512. a limiting block; 6. a flow stopping valve flap; 61. a threaded post; 7. and (4) inserting the socket.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Please refer to fig. 1-6, the utility model discloses a valve for preventing refluence, including valve body 1, the inner chamber of valve body 1 is equipped with cavity 2, socket 7 has been seted up along the annular in the left side of valve body 1, the left side of valve body 1 is equipped with to take over 3, take over 3 the right side and locate along annular fixedly connected with inserted block 32 with the corresponding position of socket 7, the right side of taking over 3 is passed through inserted block 32 and is pegged graft in the left socket 7 of valve body 1, and valve body 1 and take over 3 through fastening bolt 31 fixed connection together, sliding opening 33 has been seted up to the right side of taking over 3 inner chamber, the right side of sliding opening 33 is equipped with solid fixed ring 4.

The edge of the right side face of the fixing ring 4 is provided with grooves at equal intervals along the ring shape, inner hexagon bolts 41 are arranged inside the grooves, and the fixing ring 4 is fixedly connected to the right side of the sliding port 33 through the inner hexagon bolts 41; the presence of this design allows for easy removal of the retaining ring 4 and the components on the retaining ring 4.

The middle part of the side surface of the fixing ring 4 is fixedly connected with a cross-shaped fixing frame 42, and the side surface of the fixing ring 4 is divided into four water outlets by the fixing frame 42, the design can effectively facilitate the flowing of a medium, the middle part of the fixing frame 42 is fixedly connected with an outer fixing cylinder 5, the inner cavity of the outer fixing cylinder 5 is connected with an inner movable rod 51 in a sliding manner, and the left end of the inner movable rod 51 is fixedly connected with a limiting block 512; the appearance of this design can avoid interior movable rod 51 whole roll-off outer fixed cylinder 5's inner chamber.

The right end of the inner movable rod 51 is provided with an internal thread 511, the internal thread 511 at the right end of the inner movable rod 51 is connected with a threaded column 61 in a threaded manner, and the right end of the threaded column 61 is fixedly connected with a flow stopping valve clack 6; the appearance of this design can effectually conveniently change only valve clack 6.

The shape and the size of the flow stopping valve flap 6 are matched with those of the fixing ring 4, and the left side surface of the flow stopping valve flap 6 is attached to the right side surface of the fixing ring 4; the design is continuous, and the backflow of the medium can be effectively prevented.

The bolt head at the right end of the hexagon socket head cap screw 41 is positioned in the groove and is flush with the right side surface of the fixing ring 4; the appearance of this design can guarantee that the left surface of only flowing valve clack 6 laminates mutually with the right flank of solid fixed ring 4.

When using the utility model discloses time (theory of operation), the medium at first flows from butt joint pipe 3 department right, and promote the valve clack 6 that ends when flowing, when the valve clack 6 that ends receives the promotion from the medium, the outer fixed section of thick bamboo 5 of movable rod 51 roll-off in the drive, the spacing that finally receives stopper 512 stops to the right side and removes, then the medium can be smooth enter into in the cavity 2, and flow from the right-hand member of valve body 1, when the medium flows back from the right side to the left, the medium can promote the valve clack 6 that ends and remove to the left side, the left surface that finally makes the valve clack 6 that ends pastes with the right flank of solid fixed ring 4, thereby the purpose of preventing the backward flow has been played.

When the flow stopping valve clack 6 or other parts on the fixing ring 4 need to be replaced, a worker firstly unscrews the fastening bolt 31 to separate the butt joint pipe 3 from the valve body 1, then uses a screwdriver to unscrew the hexagon socket head cap bolts 41 on the fixing ring 4, and after all the hexagon socket head cap bolts 41 are unscrewed, the worker can take out the fixing ring 4, and can replace a certain component on the fixing ring 4 according to actual conditions, and when the flow stopping valve clack 6 needs to be replaced, the flow stopping valve clack 6 can be separated from the inner movable rod 51 only by screwing the flow stopping valve clack 6.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (6)

1. The utility model provides a valve of preventing refluence, includes valve body (1), its characterized in that: the inner chamber of valve body (1) is equipped with cavity (2), socket (7) have been seted up along the annular in the left side of valve body (1), the left side of valve body (1) is equipped with butt joint pipe (3), the right side of butt joint pipe (3) just locates along annular fixedly connected with inserted block (32) with the corresponding position of socket (7), the right side of butt joint pipe (3) is passed through inserted block (32) and is pegged graft in left socket (7) of valve body (1), just valve body (1) and butt joint pipe (3) are in the same place through fastening bolt (31) fixed connection, sliding opening (33) have been seted up on the right side of butt joint pipe (3) inner chamber, the right side of sliding opening (33) is equipped with solid fixed ring (4).

2. A backflow prevention valve in accordance with claim 1, wherein: the edge of the right side face of the fixing ring (4) is provided with grooves at equal intervals along the ring shape, inner hexagon bolts (41) are arranged inside the grooves, and the fixing ring (4) is fixedly connected to the right side of the sliding opening (33) through the inner hexagon bolts (41).

3. A backflow prevention valve in accordance with claim 2, wherein: the utility model discloses a water outlet device, including solid fixed ring (4), the middle part fixedly connected with mount (42) of solid fixed ring (4) side, just four delivery ports are cut apart into through mount (42) to the side of solid fixed ring (4), the outer solid fixed cylinder (5) of middle part fixedly connected with of mount (42), the inner chamber sliding connection of outer solid fixed cylinder (5) has interior movable rod (51), the left end fixedly connected with stopper (512) of interior movable rod (51).

4. A backflow prevention valve as claimed in claim 3, wherein: the right end of the inner movable rod (51) is provided with an internal thread (511), a threaded column (61) is in threaded connection with the internal thread (511) at the right end of the inner movable rod (51), and the right end of the threaded column (61) is fixedly connected with a flow stopping valve clack (6).

5. A backflow prevention valve in accordance with claim 4, wherein: the shape and the size of the flow stopping valve clack (6) are matched with those of the fixing ring (4), and the left side surface of the flow stopping valve clack (6) is attached to the right side surface of the fixing ring (4).

6. A backflow prevention valve in accordance with claim 2, wherein: the bolt head at the right end of the inner hexagon bolt (41) is positioned in the groove and is flush with the right side surface of the fixing ring (4).

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