Mounting structure of vacuum breaker

Abstract

The utility model relates to a mounting structure of a vacuum breaker, which comprises a valve body and a vacuum breaker, the valve body is provided with a water inlet and two water outlets, the vacuum breaker comprises a body, the body is provided with two sleeves extending downwards, the sleeves are tightly attached to the tops of the water outlets to form a seal, and the valve body is provided with a water inlet and a water outlet. A valve element is arranged in the sleeve, a cavity communicated with air is formed in the body, and the valve element isolates the channel and the water outlet. During installation, the valve element is installed in the sleeves firstly, then the body is placed on the top of the valve body, the two sleeves are inserted into the water outlet, and then installation is completed. According to the structure, the vacuum breaker is installed outside, and the vacuum breaker can be directly inserted into the valve body after being assembled, so that the installation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to an installation structure for a vacuum breaker. Background Technology

[0002] Vacuum breaker is mainly used to prevent siphon backflow. When a pipeline system (especially a liquid transport system) experiences a sudden drop in downstream pressure due to reasons such as a sudden pump stoppage, rapid valve closure, or drainage, the upstream liquid may be drawn back due to gravity or pressure difference (siphon effect). The vacuum breaker can quickly introduce air to break the vacuum, preventing the liquid from being drawn back and protecting the water source from contamination.

[0003] Currently, vacuum breaker devices are generally installed on the solenoid valves used in smart toilets. The installation of these vacuum breaker devices on solenoid valves is very troublesome because the entire vacuum breaker needs to be installed in a narrow channel. This needs to be improved. Summary of the Invention

[0004] This invention aims to overcome the problems in the prior art, and therefore designs an installation structure for a vacuum breaker that facilitates installation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an installation structure for a vacuum breaker, comprising a valve body and a vacuum breaker. The valve body has one inlet and two outlets. The vacuum breaker includes a main body with two downward-extending sleeves. The sleeves are tightly fitted to the top of the outlets to form a seal. A valve core is disposed inside each sleeve. The main body has a cavity communicating with air, and the valve core isolates the cavity from the outlets. During installation, the valve core is first installed into the sleeve, and then the main body is placed on top of the valve body, allowing the two sleeves to be inserted into the outlets. This completes the installation. This structure places the installation of the vacuum breaker externally; after assembly, it can be directly inserted into the valve body, making installation simple and convenient.

[0006] In a preferred embodiment of this invention, a guide rod is also provided around the periphery of the sleeve. The function of the guide rod is to guide the vacuum breaker as it is inserted into the water outlet.

[0007] In a preferred embodiment of this utility model, a through hole is provided at the top of the outlet, and a fixing buckle is also included. Insert rods are provided at both ends of the fixing buckle. The insert rods are inserted into the through hole and press against the top of the sleeve. The insert rods block the top of the sleeve, preventing the sleeve from slipping out of the outlet.

[0008] In a preferred embodiment of this utility model, the main body is provided with a downward-facing baffle, the baffle has an insertion hole, the valve body has an insertion port, the fixing buckle has two fixing rods, the ends of the fixing rods have hooks, the fixing rods pass through the insertion port and the insertion hole, and the hooks are fastened to the insertion hole to prevent the insertion rods from slipping out of the insertion port.

[0009] In a preferred embodiment of this utility model, the cavity is provided with a detachable top cover.

[0010] In a preferred embodiment of this utility model, the top of the cavity is provided with an upwardly protruding locking block, the end of the locking block is provided with an outwardly pointing barb, the upper cover is provided with a locking groove for the locking block to be inserted, and the barb engages the locking groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: During installation, we first install the valve core into the sleeve, and then place the main body on top of the valve body, allowing both sleeves to be inserted into the outlet, thus completing the installation. This structure places the installation of the vacuum breaker on the outside; after assembly, it can be directly inserted into the valve body, making installation simple and convenient. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention in the pulled-out state.

[0013] Figure 2 This is a top view of the present invention.

[0014] Figure 3 for Figure 2 A cross-sectional view along AA.

[0015] Figure 4 for Figure 2 A cross-sectional view along BB.

[0016] Figure 5 This is a schematic diagram of a vacuum breaker.

[0017] Figure 6 for Figure 5 A schematic diagram of its breakdown.

[0018] In the diagram: 1. Valve body, 11. Inlet, 12. Outlet, 121. Through hole, 13. Insertion port, 2. Vacuum breaker, 21. Body, 22. Sleeve, 23. Valve core, 24. Cavity, 25. Guide rod, 211. Baffle, 212. Insertion hole, 241. Protrusion, 261. Bayonet, 3. Fixing buckle, 31. Insertion rod, 32. Fixing rod, 3a. Hook. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please see Figure 1-6 This utility model provides a technical solution: an installation structure for a vacuum breaker, comprising a valve body 1 and a vacuum breaker 2.

[0022] The valve body 1 is provided with one inlet 11 and two outlets 12.

[0023] The vacuum breaker 2 includes a body 21 with two downward-extending sleeves 22. The sleeves 22 are tightly fitted to the top of the outlet 12 to form a seal. A valve core 23 is disposed inside each sleeve 22. The body 21 has a cavity 24 communicating with air, and the valve core isolates the cavity from the outlet. A guide rod 25 is also provided around the periphery of each sleeve 22. The guide rod guides the vacuum breaker as it is inserted into the outlet.

[0024] The outlet 12 has a through hole 121 at its top and also includes a fixing buckle 3. The fixing buckle 3 has insert rods 31 at both ends. The insert rods 31 are inserted into the through hole 121 and press against the top of the sleeve 22. The insert rods block the top of the sleeve, preventing it from slipping out of the outlet.

[0025] The main body 21 is provided with a downward-facing baffle 211, and the baffle 21 is provided with an insertion hole 212.

[0026] The valve body 1 is provided with a socket 13, and the fixing buckle 3 is provided with two fixing rods 32. The end of the fixing rod 32 is provided with a hook 3a. The fixing rod 32 passes through the socket 13 and the insertion hole, and the hook 3a is fastened to the insertion hole to prevent the rod from slipping out of the socket.

[0027] A detachable top cover 26 is provided on the cavity 24. Specifically, the cavity 24 has an outward protrusion 241 on its side wall, the protrusion 241 being smaller at the top and larger at the bottom, and the top cover has a latch 261, into which the protrusion is inserted.

[0028] During installation, we first install the valve core into the sleeve, and then place the main body on top of the valve body, inserting both sleeves into the outlet. This completes the installation. This structure places the vacuum breaker installation on the outside; after assembly, it can be directly inserted into the valve body, making installation simple and convenient.

Claims

1. An installation structure for a vacuum breaker, comprising a valve body and a vacuum breaker, wherein the valve body is provided with one inlet and two outlets, characterized in that: The vacuum breaker includes a body with two downward-extending sleeves. The sleeves are tightly fitted to the top of the outlet to form a seal. A valve core is installed inside the sleeve. The body has a cavity that communicates with air. The valve core isolates the cavity from the outlet.

2. The mounting structure of the vacuum breaker according to claim 1, characterized in that: The sleeve is also provided with a guide rod around its perimeter.

3. The mounting structure of the vacuum breaker according to claim 1, characterized in that: The outlet has a through hole at the top and a fixing buckle. The fixing buckle has insert rods at both ends. The insert rods are inserted into the through hole and press against the top of the sleeve.

4. The mounting structure of the vacuum breaker according to claim 3, characterized in that: The main body is provided with a downward-facing baffle, the baffle is provided with a socket, the valve body is provided with a socket, the fixing buckle is provided with two fixing rods, the end of the fixing rod is provided with a hook, the fixing rod passes through the socket and the socket, and the hook is fastened to the socket.

5. The mounting structure of the vacuum breaker according to claim 1, characterized in that: The cavity is provided with a removable top cover.

6. The mounting structure of the vacuum breaker according to claim 5, characterized in that: The cavity has an outward protrusion on its side wall, which is smaller at the top and larger at the bottom. The top cover has a snap-fit, and the protrusion is inserted into the snap-fit.

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