阅读说明：本技术 一种防逆流喷杆 (Anti-reflux spray rod ) 是由 金忠成 魏秀珍 彭海松 赖马养 于 2019-03-21 设计创作，主要内容包括：本发明提供了一种防逆流喷杆,涉及喷杆设备技术领域。其中,这种防逆流喷杆具有防逆流机构和喷洗机构,防逆流机构和用水系统相连通。防逆流机构设置有进水口、射流腔、射流口、敞口腔,以及承接口；喷洗机构设置有承接腔,以及冲洗喷嘴；进水口、射流腔、射流口、敞口腔、承接口、承接腔,以及冲洗喷嘴依次相连通。敞口腔设置有和外界相连通的第一通道,射流口的口径小于射流腔的口径。外界的水能够自进水口流入射流腔,并产生自射流口射出的水流,该水流能够穿过敞口腔并射入承接口,并流入承接腔以供冲洗喷嘴喷出。当用水系统有负压,且冲洗喷嘴浸于污水时,用水系统可通过第一通道吸入空气,以避免吸入污水导致用水系统污染。(The invention provides an anti-backflow spray rod, and relates to the technical field of spray rod equipment. The anti-reflux spray rod is provided with an anti-reflux mechanism and a spray washing mechanism, and the anti-reflux mechanism is communicated with a water system. The anti-reflux mechanism is provided with a water inlet, a jet cavity, a jet opening, an open cavity and a bearing opening; the spray washing mechanism is provided with a bearing cavity and a washing nozzle; the water inlet, the jet cavity, the jet opening, the open cavity, the bearing opening, the bearing cavity and the flushing nozzle are communicated in sequence. The open cavity is provided with a first channel communicated with the outside, and the caliber of the jet orifice is smaller than that of the jet cavity. The outside water can flow into the water flow cavity from the water inlet and generate water flow ejected from the ejection port, and the water flow can pass through the open cavity and be ejected into the bearing port and flow into the bearing cavity to be ejected out by the flushing nozzle. When the water system has negative pressure and the flushing nozzle is immersed in the sewage, the water system can suck air through the first channel so as to avoid the pollution of the water system caused by the sucked sewage.)

1. An anti-backflow spray bar, comprising:

(a) an anti-reverse flow mechanism (1001) provided with a water inlet (110), a first passage (120), and an open chamber (130); the water inlet (110) is communicated with the first passage (120), the first passage (120) is communicated with the open cavity (130), and the open cavity (130) is provided with a first channel (131) communicated with the outside;

(b) a spray mechanism (1002) provided with a second passage (140), and a flush nozzle (150); said second passageway (140) being in communication with said open chamber (130), said rinse nozzle (150) being in communication with said second passageway (140);

water can flow from the water inlet (110) into the first passage (120) and produce a flow of water emitted from the first passage (120) which can pass through the open cavity (130) and into the second passage (140) for ejection by the rinse nozzle (150).

2. An anti-backflow spray bar according to claim 1, wherein the first passage (120) comprises a jet chamber (121) communicating with the water inlet (110), and a jet port (122) communicating with the jet chamber (121) and the open chamber (130), respectively; the second passage (140) includes a socket (141) communicating with the open chamber (130), and a socket chamber (142) communicating with the socket (141) and the rinse nozzle (150), respectively.

3. An anti-backflow spray bar as claimed in claim 2, characterized in that the transitions between the jet chamber (121) and the jet orifice (122) and between the socket (141) and the socket chamber (142) are conical.

4. An anti-backflow spray bar according to claim 2, characterized in that the transitions between the jet chamber (121) and the jet orifice (122) and between the socket (141) and the socket chamber (142) are cambered surfaces.

5. The backflow-preventing spray bar as claimed in claim 2, characterized in that the jet chamber (121) and the receiving chamber (142) are both of a cylindrical structure, and the jet opening (122) and the receiving opening (141) are both of a through hole structure.

6. An anti-reflux spray bar as claimed in claim 2, characterized in that the orifice (122) has a smaller diameter than the orifice of the jet chamber (121) and the bell (141).

7. The spray bar of claim 1 wherein the anti-backflow mechanism (1001) and the spray mechanism (1002) are of unitary construction.

8. An anti-backflow spray bar according to claim 2, characterized in that the anti-backflow spray bar (1) is a split structure, the anti-backflow spray bar (1) comprises a first assembly (1003) and a second assembly (1004) which are detachably configured together, and the open cavity (130) comprises a first open section and a second open section which are detachably configured; the first assembly (1003) comprises the water inlet (110), the jet chamber (121), the jet orifice (122), and the first open section; the second assembly (1004) comprises the second open section, the socket (141), the socket cavity (142), and the rinse nozzle (150).

9. An anti-backflow spray bar according to claim 2, characterized in that the anti-backflow spray bar 1 is a split structure, the anti-backflow spray bar 1 comprises a first assembly (1003) and a second assembly (1004) which are detachably arranged together, and the receiving chamber (142) comprises a first receiving section and a second receiving section which are detachably arranged; the first assembly (1003) comprises the water inlet (110), the jet cavity (121), the jet orifice (122), the open cavity (130), the socket (141), and the first socket section; the second assembly (1004) includes the second receiving section, and the flush nozzle (150) in communication with the second receiving section.

Technical Field

The invention relates to the technical field of spray rod equipment, in particular to an anti-backflow spray rod.

Background

At present, a drinking water system in a building and a water supply system of a bathroom setting are combined together. When the sewage discharge pipeline of the closestool is blocked, sewage in the closestool can spread to the ceramic surface, and if the automatic flushing function of the human body of the closestool is started, the spray rod can extend out and be soaked in the sewage. Once negative pressure exists in the domestic water pipeline, sewage in the closestool can be pumped back to the water supply system, so that the whole drinking water system is polluted, and great harm is caused.

In view of the above, the inventors of the present invention have made a study of the prior art and then have made the present application.

Disclosure of Invention

The invention provides an anti-backflow spray rod, and aims to solve the problem that a drinking water system is possibly polluted when the anti-backflow spray rod is applied to a spray rod of sanitary equipment in the prior art.

In order to solve the technical problem, the invention provides an anti-reflux spray rod, which comprises:

(a) an anti-reflux mechanism provided with a water inlet, a first passage, and an open cavity; the water inlet is communicated with the first passage, the first passage is communicated with the open cavity, and the open cavity is provided with a first channel communicated with the outside;

(b) a spray mechanism provided with a second passage, and a flushing nozzle; the second passage is communicated with the open cavity, and the flushing nozzle is communicated with the second passage;

water can flow into the first passage from the water inlet and generate a water flow ejected from the first passage, which can pass through the open cavity and be ejected into the second passage for ejection by the flushing nozzle.

As a further optimization, the first passage comprises a jet flow cavity communicated with the water inlet and jet flow ports respectively communicated with the jet flow cavity and the open cavity; the second passage comprises a bearing port communicated with the open cavity and bearing cavities respectively communicated with the bearing port and the flushing nozzle.

As a further optimization, conical transitions are respectively formed between the jet cavity and the jet port and between the adapting port and the adapting cavity.

As a further optimization, the flow cavity and the flow opening, and the receiving opening and the receiving cavity are in arc surface transition.

As further optimization, the jet cavity and the bearing cavity are both of a columnar structure, and the jet opening and the bearing opening are both of a through hole structure.

As a further optimization, the caliber of the jet orifice is smaller than the calibers of the jet cavity and the bellmouth.

As a further optimization, the anti-reflux mechanism and the spray-washing mechanism are of an integrated structure.

As a further optimization, the anti-backflow spray rod is of a split structure, the anti-backflow spray rod comprises a first assembly and a second assembly which are detachably configured together, and the open cavity comprises a first open section and a second open section which are detachably configured together; the first assembly comprises the water inlet, the jet cavity, the jet port, and the first open section; the second assembly includes the second open section, the socket cavity, and the rinse nozzle. The first assembly and the second assembly are in clamping fit or threaded connection.

As a further optimization, the anti-backflow spray rod is of a split structure, the anti-backflow spray rod comprises a first assembly and a second assembly which are detachably configured together, and the bearing cavity comprises a first bearing section and a second bearing section which are detachably configured; the first assembly comprises the water inlet, the jet cavity, the jet port, the open cavity, the socket and the first bearing section; the second assembly includes the second receiving section and the rinse nozzle in communication with the second receiving section. Wherein, be plug-in fit or threaded connection between first subassembly and the second subassembly.

By adopting the technical scheme, the invention can obtain the following technical effects:

the anti-reflux spray rod is provided with the anti-reflux mechanism and the spray washing mechanism, so that the spray rod can prevent external sewage from flowing back to a water supply system from the spray washing mechanism. Specifically, during normal operation, water can flow into the jet cavity from the water inlet and be ejected from the jet opening, a water column is generated which can pass through the open cavity and be ejected into the receiving opening, and the water column finally flows into the receiving cavity for being ejected by the flushing nozzle.

When the tail end of the spray rod enters sewage, such as: the closestool is blocked to result in the interior sewage submergence of closestool to wash the nozzle, and when water supply system had the negative pressure this moment, because efflux mouth and faucet are not direct to be linked together, but are linked together through the open chamber that has first passageway, therefore water supply system's negative pressure can absorb external air through first passageway, and can not absorb outside sewage from the faucet to reach and reduce and eliminate the negative pressure in the water supply system.

Through the technical means, the anti-backflow spray rod can prevent sewage from entering a water supply system when the flushing nozzle is immersed in the sewage and the water supply system has negative pressure, so that the condition that the water supply system is polluted is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic cross-sectional view of a first embodiment of the present invention, an anti-reflux spray bar and toilet;

FIG. 2 is a schematic view of a first axial side of the anti-reflux spray bar of the first embodiment of the present invention;

FIG. 3 is a schematic view of a first cross-sectional configuration of a reverse flow spray bar in accordance with a first embodiment of the present invention;

FIG. 4 is a second cross-sectional view of the anti-drainback spray bar of the first embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a second embodiment of the present invention, showing an anti-drainback spray bar;

FIG. 6 is a schematic cross-sectional view of a third embodiment of the present invention, showing a reverse flow prevention spray bar;

FIG. 7 is a schematic cross-sectional view of a fourth embodiment of the present invention, showing an anti-drainback spray bar;

FIG. 8 is a schematic view of a fifth embodiment of the present invention, showing a first axial side structure of the anti-reflux spray bar;

FIG. 9 is a schematic second axial side view of a fifth embodiment of the present invention, illustrating an anti-reflux spray bar;

the labels in the figure are: 1-anti-reflux spray rod; 2-a toilet bowl; 200-a discharge channel; 1001-anti-reflux mechanism; 1002-a spray rinsing mechanism; 1003 — first component; 1004 — a second component; 110-a water inlet; 120-a first pathway; 130-open mouth; 140-a second pathway; 150-rinsing the nozzle; 121-jet chamber; 122-jet orifice; 141-a socket; 142-a receiving chamber; 131-first channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

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", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

the first embodiment:

as shown in fig. 1 to 4, in the present embodiment, a backflow prevention spray bar includes:

(a) an anti-reverse flow mechanism 1001 provided with a water inlet 110, a first passage 120, and an open chamber 130; the water inlet 110 is communicated with the first passage 120, the first passage 120 is communicated with the open cavity 130, and the open cavity 130 is provided with a first channel 131 communicated with the outside;

(b) a spray mechanism 1002 provided with the second passage 140, and the rinse nozzle 150; the second passage 140 is in communication with the open cavity 130, and the rinse nozzle 150 is in communication with the second passage 140;

water can flow from the water inlet 110 into the first passage 120 and produce a stream of water emitted from the first passage 120 that can pass through the open cavity 130 and into the second passage 140 for ejection by the rinse nozzle 150. In the present embodiment, the reverse flow prevention spray bar 1 is used on the toilet bowl 2, and the toilet bowl 2 is provided with the discharge passage 200. As shown in fig. 1, in the present embodiment, the first passage 120 includes a jet chamber 121 communicating with the water inlet 110, and jet ports 122 respectively communicating with the jet chamber 121 and the open chamber 130; the second passageway 140 includes a socket 141 in communication with the open cavity 130 and a socket cavity 142 in communication with the socket 141 and the rinse nozzle 150, respectively. In the present embodiment, the aperture of the jet orifice 122 is smaller than the aperture of the jet chamber 121. The anti-reflux spray bar 1 works specifically as follows:

when the reverse flow preventing spray bar 1 is in normal operation, as shown in fig. 3, water can flow into the jet flow chamber 121 from the water inlet 110 and be ejected from the jet flow port 122, and since the aperture of the jet flow port 122 is smaller than that of the jet flow chamber 121, the pressure of the water ejected from the jet flow port 122 is increased, a water column which can pass through the open chamber 130 and be ejected into the receiving port 141 is generated, and the water column finally flows into the receiving chamber 142 for being ejected by the flushing nozzle 150. In fig. 3, S1 is a water path diagram of the reverse flow preventing spray bar 1 in normal operation.

When the tail end of the spray rod enters sewage, such as: when the toilet 2 is blocked, the sewage in the toilet 2 submerges the flushing nozzle 150, and the water supply system has negative pressure, as shown in the figure, because the jet opening 122 and the socket 141 are not directly communicated, but are communicated through the open cavity 130 with the first channel 131, the negative pressure of the water supply system can suck the outside air through the first channel 131, but can not suck the outside sewage from the socket 141, so as to reduce and eliminate the negative pressure in the water supply system. S2 in fig. 4 is a schematic diagram of the water supply system sucking air.

Through the technical means, the anti-backflow spray rod 1 can prevent sewage from entering a water supply system under the condition that the flushing nozzle 150 is immersed in the sewage and the water supply system has negative pressure, so that the condition that the water supply system is polluted is avoided.

As shown in fig. 1, 3 and 4, in the present embodiment, the jet opening 122 and the socket 141 are both of a through hole structure, and the caliber of the jet opening 122 is smaller than the caliber of the socket 141, so that the water flow ejected from the jet opening 122 can better enter the socket 141.

As shown in fig. 3 and 4, in the present embodiment, a conical transition is formed between the fluidic chamber 121 and the fluidic orifice 122, and between the socket 141 and the fluidic orifice 122, and the conical transition can reduce the pressure loss of water entering the fluidic orifice 122 from the fluidic chamber 121.

As shown in fig. 1, 3, and 4, in the present embodiment, the backflow prevention mechanism 1001 and the spray mechanism 1002 are integrally configured.

Second embodiment:

as shown in fig. 5, in the present embodiment, the transitions between the jet cavity 121 and the jet orifice 122, and between the socket 141 and the jet orifice 122 are both arc-shaped. In this embodiment, the other structures of the backflow prevention mechanism 1001 and the spray mechanism 1002 are the same as those of the first embodiment, and are not described again here.

The third embodiment:

in the present embodiment, as shown in fig. 6, the ejection chamber 121 and the receiving chamber 142 are both cylindrical structures. Such as: the jet flow cavity 121 and the receiving cavity 142 are both in a cylindrical or rectangular structure; no significant transition structure is provided between the jet cavity 121 and the jet orifice 122, and between the socket 141 and the jet orifice 122. In this embodiment, the other structures of the backflow prevention mechanism 1001 and the spray mechanism 1002 are the same as those of the first embodiment, and are not described again here.

The fourth embodiment:

as shown in fig. 7, in the present embodiment, the reverse flow prevention spray bar 1 is a split structure, the reverse flow prevention spray bar 1 includes a first module 1003 and a second module 1004 which are detachably disposed together, and the open cavity 130 includes a first open section and a second open section which are detachably disposed. The first assembly 1003 comprises a water inlet 110, a jet chamber 121, a jet port 122, and a first open section. The second assembly 1004 includes a second open section, a socket 141, a socket cavity 142, and a flush nozzle 150. The first module 1003 and the second module 1004 are detachably configured together through a first open section and a second open section; wherein, first open-mouth section and second open-mouth section are joint or threaded connection. In this embodiment, the other structures of the backflow prevention mechanism 1001 and the spray mechanism 1002 are the same as those of the first embodiment, and are not described again here.

Fifth embodiment:

as shown in fig. 8 and 9, in the present embodiment, the backflow prevention spray bar 1 is a split structure, the backflow prevention spray bar 1 includes a first component 1003 and a second component 1004 which are detachably configured together, and the receiving chamber 142 includes a first receiving section and a second receiving section which are detachably configured. The first assembly 1003 includes a water inlet 110, a jet chamber 121, a jet port 122, an open chamber 130, a socket 141, and a first socket section. Second assembly 1004 includes a second receiving segment, and flush nozzle 150 in communication with the second receiving segment. The first receiving section and the second receiving section are in plug-in connection or threaded connection. In this embodiment, the other structures of the backflow prevention mechanism 1001 and the spray mechanism 1002 are the same as those of the first embodiment, and are not described again here.

The above is the first embodiment of the present invention, but the present invention may have other modified designs. Specifically, in another embodiment, the jet flow chamber 121 and the receiving chamber 142 may be configured in other structures as long as water flowing into the jet flow chamber 121 can generate a water column which is ejected from the jet opening 122, passes through the open cavity 130, and is ejected into the receiving opening 141. In another embodiment, the anti-backflow spray bar 1 is a split structure, and the dividing plane can be arranged at other positions besides the open cavity 130 and the receiving cavity 142.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.