CN215831230U - Backflow-preventing connecting valve - Google Patents

Abstract

The utility model provides a backflow-preventing connecting valve, comprising: the anti-backflow device comprises a threaded cylinder, a hexagonal outer cylinder, a blocking piece, a threaded rod, an anti-backflow component and a through hole, wherein the threaded cylinder is concentrically sleeved on the surface of the threaded rod, the hexagonal outer cylinder is fixed on the surface of the threaded cylinder, the blocking piece is installed at one end of the threaded rod, the through holes are formed in the threaded cylinder and the threaded rod, and the anti-backflow component is arranged at one end, far away from the threaded cylinder, in the through hole; and the backflow prevention assembly is suitable for preventing water flow from one end of the threaded rod to one end of the threaded cylinder; according to the backflow prevention device, the backflow prevention barrel is arranged at one end of the threaded barrel, the radius of the bottom barrel is larger than that of the top barrel, the semi-floating ball connected through the suspension disc is arranged in the bottom barrel, and the semi-floating ball can float upwards to seal the through hole of the top barrel when water flows backwards from the bottom, so that the backflow prevention function is realized, and the problem of complex assembly is solved.

Description

Backflow-preventing connecting valve

Technical Field

The utility model relates to the technical field of connecting valves, in particular to an anti-backflow connecting valve.

Background

Along with the development of the society now, people's standard of living's improvement, the application of all kinds of mechanical products in the life is comparatively common, and wherein the internal seal effect that uses in detecting water carrying container can use the connecting valve, but traditional connecting valve its inside water yield backward flow phenomenon that easily appears in the use.

Therefore, in certain circumstances, a need exists for an alternative to a backflow-preventing connection valve.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the water reflux leads to a reduction in the detection accuracy in order to solve the problems in the prior art. The present invention provides a backflow prevention connection valve to solve the above problems.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a backflow-preventing junction valve, comprising: the anti-backflow device comprises a threaded cylinder, a hexagonal outer cylinder, a blocking piece, a threaded rod, an anti-backflow component and a through hole, wherein the threaded cylinder is concentrically sleeved on the surface of the threaded rod, the hexagonal outer cylinder is fixed on the surface of the threaded cylinder, the blocking piece is installed at one end of the threaded rod, the through holes are formed in the threaded cylinder and the threaded rod, and the anti-backflow component is arranged at one end, far away from the threaded cylinder, in the through hole; and

the backflow prevention assembly is adapted to prevent water flow from the threaded rod end to the threaded barrel end.

Further, the backflow prevention assembly includes: a top end cartridge and a bottom end cartridge; the top end cylinder and the bottom end cylinder are both arranged in the through hole at one end of the threaded rod; and

the top end section of thick bamboo with the outer wall of a bottom section of thick bamboo all with the through-hole inner wall is laminated each other, the internal diameter of a top end section of thick bamboo is less than the internal diameter of a bottom section of thick bamboo.

Further, a flow guide hole is formed in the bottom end inside the bottom end cylinder; and

the diversion holes are concentrically arranged with the top end cylinder, the bottom end cylinder and the through holes, and the radius of the diversion holes is smaller than the inner diameter of the top end cylinder.

Further, the inner wall of the bottom end barrel is provided with a ring groove, and a bearing part is arranged in the bottom end barrel on one side of the ring groove; and

the maximum radius of the bearing part is matched with the inner diameter of the ring groove.

Further, the backflow prevention assembly further includes: the semi-floating ball is arranged at a concentric position in the bottom end cylinder; and

the outer side wall of the semi-floating ball is attached to the inside of the bearing part; wherein

And water flows into the threaded rod from the threaded rod and is suitable for pushing the semi-floating ball to be attached to the inner wall of the top barrel.

Further, the bearing part includes: the suspension plate is internally provided with an arc-shaped groove; and

the inner wall of the arc-shaped groove is matched with the outer wall of the semi-floating ball, and the suspension plate and the arc-shaped groove are arranged concentrically with the semi-floating ball.

Furthermore, support rods are uniformly fixed on the surface of the suspension disc, and guide balls matched with the ring grooves are fixed at the other ends of the support rods; wherein

The guide ball is adapted to slide along the ring groove.

According to the backflow prevention device, the backflow prevention barrel is arranged at one end of the threaded barrel, the radius of the bottom barrel is larger than that of the top barrel, the semi-floating ball connected through the suspension disc is arranged in the bottom barrel, and the semi-floating ball can float upwards to seal the through hole of the top barrel when water flows backwards from the bottom, so that the backflow prevention function is realized, and the problem of complex assembly is solved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of a preferred embodiment of a backflow-preventing junction valve of the present invention;

FIG. 2 is a perspective view of a preferred embodiment of the backflow prevention assembly of the present invention;

FIG. 3 is a perspective cross-sectional view of a preferred embodiment of the backflow prevention assembly of the present invention;

FIG. 4 is a cross-sectional view of a preferred embodiment of the retainer of the present invention.

In the drawings

1. A threaded barrel; 2. a hexagonal outer cylinder; 3. a baffle plate; 4. a threaded rod; 5. a backflow prevention assembly; 6. a through hole;

51. a top end barrel; 52. a bottom end barrel; 53. a flow guide hole; 54. a ring groove; 55. a bearing part; 56. a semi-floating ball;

551. suspending the tray; 552. an arc-shaped slot; 553. a support bar; 554. a guide ball.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of 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 therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," 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. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1, fig. 1 is a perspective view of a preferred embodiment of a backflow prevention connection valve according to the present invention; referring to FIG. 2, FIG. 2 is a perspective view of a preferred embodiment of the backflow prevention assembly of the present invention; referring to FIG. 3, FIG. 3 is a perspective cross-sectional view of a preferred embodiment of the backflow prevention assembly of the present invention; referring to FIG. 4, FIG. 4 is a cross-sectional view of a preferred embodiment of the retainer of the present invention; as shown in fig. 1 to 4, the present invention provides a backflow prevention connection valve, including: a thread section of thick bamboo 1, hexagonal urceolus 2, separation blade 3, threaded rod 4, backflow prevention subassembly 5 and through-hole 6, wherein, a thread section of thick bamboo 1 is used for connecting in the outside that bears the water receptacle, hexagonal urceolus 2 is the operation of screwing when being used for being convenient for interconnect, separation blade 3 is used for and bears the inside top of water receptacle contact each other, threaded rod 4 mainly through with 1 cover of a thread section of thick bamboo 1 reduce the distance before 1 bottom of a thread section of thick bamboo and separation blade 3 in its surface and rotatory thread section of thick bamboo, strengthen interconnect's inseparable degree, backflow prevention subassembly 5 mainly used avoids rivers to follow the one end flow direction thread section of thick bamboo 1 of threaded rod 4, through-hole 6 is seted up in a thread section of thick bamboo 1, threaded rod 4 and separation blade 3, mainly used rivers pass through.

Threaded cartridge 1

The inside of a screw thread section of thick bamboo 1 is provided with the screw thread strip, and wherein, specifically, the one end of a screw thread section of thick bamboo 1 is provided with a short hexagonal section of thick bamboo, is applicable to the connection operation of the connection process of being convenient for, and a screw thread section of thick bamboo 1 is applicable to and places the outside of bearing the water container and play main rotatory reinforcing connection stable effect of changeing.

Hexagonal outer cylinder 2

Hexagonal urceolus 2 sets up on the surface of a screw thread section of thick bamboo 1, and is concrete, and hexagonal urceolus 2 sets up the one end on a screw thread section of thick bamboo 1 surface, and what the other end on a screw thread section of thick bamboo 1 surface set up is a short hexagonal section of thick bamboo, can make a screw thread section of thick bamboo 1 be applicable to and place the external instrument of being convenient for when bearing the outside of water container and drive its whole rotation rather than the surface joint, and then reinforcing connection fastening degree.

Threaded rod 4

Threaded rod 4 and a threaded section of thick bamboo 1 set up for the components of a whole that can function independently, and the one end of threaded rod 4 is fixed with separation blade 3, and the radius of separation blade 3 is greater than the external diameter of the 4 external diameters of threaded rod, and threaded rod 4 is used for arranging the inside of bearing the water container in to make its tip wear out from the outer wall flowing water hole department that bears the water container, and is concrete, through with 1 cover of a threaded section of thick bamboo 1 on the surface of threaded rod 4 and rotatory threaded section of thick bamboo 1 reduce the distance before 1 bottom of a threaded section of thick bamboo and separation blade 3, strengthen interconnect's inseparable degree.

Through-hole 6

The through hole 6 is opened on the threaded rod 4, the threaded cylinder 1 and the baffle 3, the through hole 6 is used for water flow to pass through the position after the threaded rod 4 is connected with the threaded cylinder 1, and it needs to be newly explained that the aperture of the through hole 6 is changed along with the change of the inner parts of the threaded rod 4, the threaded cylinder 1 and the baffle 3.

Backflow prevention assembly 5

The anti-backflow component 5 is arranged at one end of the threaded rod 4 in the through hole 6, specifically, the anti-backflow component 5 is mainly used for preventing water from flowing to one end of the threaded cylinder 1 from one end of the threaded rod 4, under an initial state, the water enters from the output end of the threaded cylinder 1, and then the water flows to the output end of the threaded rod 4 through the connecting position after the threaded cylinder 1 is in butt joint with the threaded rod 4, so that the connecting valve is enabled to bear the transmission of one-way water flow, and the water flow inside the bearing container is prevented from being reversed out.

The following describes the structure of the backflow prevention assembly 5 in detail, where the backflow prevention assembly 5 includes: a top end cartridge 51 and a bottom end cartridge 52; the top end cylinder 51 and the bottom end cylinder 52 are both arranged in the through hole 6 at one end of the threaded rod 4; the outer walls of the top end cylinder 51 and the bottom end cylinder 52 are mutually attached to the inner wall of the through hole 6, and the inner diameter of the top end cylinder 51 is smaller than that of the bottom end cylinder 52; the purpose of the design is to enable the water flow entering from the top end barrel 51 to flow to the bottom end barrel 52 and be discharged, so that the water flow from the bottom end barrel 52 is difficult to enter the top end barrel 51 after existing inside, and the occurrence of the water return phenomenon is further effectively reduced, wherein the bottom end inside the bottom end barrel 52 is provided with a flow guide hole 53; the diversion hole 53, the top end cylinder 51, the bottom end cylinder 52 and the through hole 6 are all concentrically arranged, and the radius of the diversion hole 53 is smaller than the inner diameter of the top end cylinder 51; specifically, the diversion holes 53 are arranged at the lowest part of the top end barrel 51, the bottom end barrel 52 and the through holes 6, so that the water flow keeps a uniform horizontal line track when moving, the probability of collision with the side wall at the corner position is reduced, and the water energy in the initial state is effectively maintained; an annular groove 54 is formed in the inner wall of the bottom end barrel 52, and a bearing part 55 is arranged in the bottom end barrel 52 on one side of the annular groove 54; and the maximum radius of the supporting part 55 is matched with the inner diameter of the ring groove 54; the supporting part 55 can move along the inner wall of the ring groove 54 by inserting the supporting part 55 into the ring groove 54, so that the supporting part 55 always keeps concentric with the diversion hole 53 in the continuous moving process, and the backflow-preventing component 5 further comprises: a semi-floating ball 56, said semi-floating ball 56 being disposed concentrically within said bottom end cartridge 52; when water flows enter from the top end barrel 51, the side wall of one side of the bottom of the semi-floating ball 56 is clamped and embedded in the bearing part 55, a gap with a certain interval is formed between the top end of the semi-floating ball 56 and the bottom of the top end barrel 51, meanwhile, the water flows can be gathered in the diversion hole 53 through the gap and discharged, and the outer side wall of the semi-floating ball 56 is attached to the inside of the bearing part 55; wherein water flows in from the threaded rod 4 and is suitable for pushing the semi-floating ball 56 to be jointed with the inner wall of the top end barrel 51; when the inside water yield of bearing water container is sufficient after, the water yield can be followed bottom of a bottom section of thick bamboo 52 and got into and concentrate in a bottom section of thick bamboo 52 through water conservancy diversion hole 53, rivers can make half floater 56 break away from supporting portion 55 and float in a bottom section of thick bamboo 52, the highest water level plane in a bottom section of thick bamboo 52 is half floater 56 bottom place horizontal plane promptly this moment, until the top of half floater 56 and the inner wall of a top section of thick bamboo 51 bottom laminate completely, form and seal the sideline, the inside rivers increase of a bottom section of thick bamboo 52 stops this moment, the effectual rivers of avoiding flow to a top section of thick bamboo 51 from a bottom section of thick bamboo 52, realized preventing palirrhea function.

Bearing part 55

The bearing portion 55 is disposed inside the bottom end barrel 52, specifically, the bearing portion 55 is disposed at a concentric position inside the bottom end barrel 52 in a matched manner with the annular groove 54, wherein the bearing portion 55 is mainly used for suspending a semi-floating ball 56, when the water flow pressure above the semi-floating ball 56 is greater than the water flow pressure below the semi-floating ball 56, the semi-floating ball 56 is embedded in the bearing portion 55 in a clamped manner, when the water flow pressure above the semi-floating ball 56 is less than the water flow pressure below the semi-floating ball 56, the top end of the semi-floating ball 56 is completely attached to the inner wall of the bottom of the top end barrel 51 to form a closed side line, and at this time, the bottom end of the semi-floating ball 56 is separated from the bearing portion 55.

The following describes the structure of the support portion 55, and the support portion 55 includes: the suspended plate 551 is provided with an arc-shaped groove 552 inside; the radius between the centers of the arc-shaped grooves 552 is equal to the radius of the semi-floating ball 56, the inner wall of the arc-shaped groove 552 is matched with the outer wall of the semi-floating ball 56, and the suspension plate 551 and the arc-shaped grooves 552 are arranged concentrically with the semi-floating ball 56; the purpose of this design is to make the semi-floating ball 56 completely placed inside the suspension plate 551 when the water flow flows from the top barrel 51, the surface of the suspension plate 551 is fixed with the support bars 553 uniformly, the other end of the support bars 553 is fixed with the guide ball 554 matching with the ring groove 54; wherein the guiding ball 554 is adapted to slide along the groove 54, when water flows into the bottom end barrel 52, the guiding ball 554 drives the semi-floating ball 56 carried by the suspending disc 551 connected by the support rod 553 to rotate along the groove 54.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (7)

1. A backflow-preventing junction valve, comprising: the anti-backflow device comprises a threaded cylinder (1), a hexagonal outer cylinder (2), a blocking piece (3), a threaded rod (4), an anti-backflow component (5) and a through hole (6), wherein the threaded cylinder (1) is concentrically sleeved on the surface of the threaded rod (4), the hexagonal outer cylinder (2) is fixed on the surface of the threaded cylinder (1), the blocking piece (3) is installed at one end of the threaded rod (4), the through hole (6) is formed in the threaded cylinder (1) and the threaded rod (4), and the anti-backflow component (5) is arranged at one end, far away from the threaded cylinder (1), in the through hole (6); and

the backflow prevention assembly (5) is adapted to prevent water from flowing from one end of the threaded rod (4) to one end of the threaded cylinder (1).

2. A valve as claimed in claim 1, characterised in that said anti-backflow assembly (5) comprises: a top end barrel (51) and a bottom end barrel (52); the top end barrel (51) and the bottom end barrel (52) are arranged in the through hole (6) at one end of the threaded rod (4); and

the outer wall of a top section of thick bamboo (51) and a bottom section of thick bamboo (52) all with through-hole (6) inner wall laminates each other, the internal diameter of a top section of thick bamboo (51) is less than the internal diameter of a bottom section of thick bamboo (52).

3. The backflow-preventing connecting valve as claimed in claim 2, wherein a flow-guiding hole (53) is formed at the bottom end inside the bottom end barrel (52); and

the guide holes (53) are concentrically arranged with the top end barrel (51), the bottom end barrel (52) and the through hole (6), and the radius of the guide holes (53) is smaller than the inner diameter of the top end barrel (51).

4. The valve as claimed in claim 3, wherein the inner wall of the bottom end cylinder (52) is provided with a ring groove (54), and a bearing part (55) is arranged in the bottom end cylinder (52) on one side of the ring groove (54); and

the maximum radius of the supporting part (55) is matched with the inner diameter of the ring groove (54).

5. A valve according to claim 4, wherein the backflow prevention assembly (5) further comprises: a semi-floating ball (56), said semi-floating ball (56) disposed at a concentric location within said bottom end cartridge (52); and

the outer side wall of the semi-floating ball (56) is attached to the inside of the bearing part (55); wherein

Water flows into the threaded rod (4) and is suitable for pushing the semi-floating ball (56) to be attached to the inner wall of the top end barrel (51).

6. A valve as claimed in claim 5, characterised in that said support (55) comprises: the suspension plate (551) is internally provided with an arc-shaped groove (552); and

the inner wall of the arc-shaped groove (552) is matched with the outer wall of the semi-floating ball (56), and the suspension plate (551) and the arc-shaped groove (552) are arranged concentrically with the semi-floating ball (56).

7. The valve as claimed in claim 6, wherein a support bar (553) is uniformly fixed to a surface of the suspension plate (551), and a guide ball (554) fitted into the groove (54) is fixed to the other end of the support bar (553); wherein

The guide ball (554) is adapted to slide along the groove (54).

Images