Automatic drainage combination valve

Abstract

The utility model discloses an automatic drainage combination valve and belongs to the field of building water supply systems, the automatic drainage combination valve comprises a valve body, a drainage device is mounted at the water outlet end of the valve body, a drainage connector is mounted in the drainage device and is of a trumpet-shaped structure, and the diameter of the end, close to the valve body, of the drainage connector is larger than that of the end, away from the valve body, of the drainage connector; a drainage opening is formed in the surface of the drainage device and sealed through a plug, the drainage opening is correspondingly formed in the periphery of the drainage connector, and media guided in through the drainage opening and media penetrating through the drainage connector are mixed and output out of the drainage device. The design of the combination valve can facilitate a user to add media such as an anti-freezing agent into the water supply system according to a preset time interval, and the technical problem that drainage supplement cannot be achieved in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building water supply systems, in particular to an automatic drainage combination valve. BACKGROUND

[0002] Currently, in the water supply system of a building, especially in a closed circulation heating or refrigeration system, multiple independent functional valves, including pressure reducing valves, water supplement valves, check valves and stop valves, etc., are usually installed on the pipeline to realize the normal operation of the system. These independent valves not only increase the installation space and cost, but also increase the complexity of maintenance.

[0003] In cold regions such as northern Europe, the water supply system also faces a special challenge: it is necessary to regularly add antifreeze and other media to the system to prevent the pipeline from freezing. There are some antifreeze valve solutions in the prior art, such as using heating wires or heat preservation structures to prevent the valve from freezing. Related prior art such as Chinese patent application "Anti-freezing valve faucet", application number: CN202323391710.5; discloses a valve faucet including a valve pipe, a lower valve seat, an upper valve seat, a valve head, an external pipe, an anti-freezing structure, a fixing structure and a circuit breaker, the lower valve seat is installed on the upper part of the middle part of the valve pipe, the upper valve seat is installed on the upper part of the lower valve seat, the valve head is installed on the top of the upper valve seat, the external pipe is provided at both ends of the valve pipe, the anti-freezing structure is installed on the outer wall of the connection between the external pipe and the valve pipe, the fixing structure is provided at the end of the anti-freezing structure, and the circuit breaker is installed on one side of the anti-freezing structure. The anti-freezing valve faucet can heat and insulate the valve faucet by installing an anti-freezing structure on the outside of the valve pipe and connecting with the external pipeline, and can ensure the safety of the device during use by increasing the heating wire and installing the circuit breaker that can automatically cut off the power. However, the above-mentioned solution mainly focuses on the anti-freezing problem of the valve itself, and cannot realize the function of adding antifreeze regularly and quantitatively required by the user. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the present application is to provide an automatic drainage combination valve, which can facilitate users to add antifreeze and other media to the water supply system at preset time intervals, and solve the technical problem that the existing technology cannot realize drainage and replenishment.

[0005] The technical solution adopted by the present application is: an automatic drainage combination valve, including a valve body, a drainage device installed at the water outlet end of the valve body, a drainage connector installed in the drainage device, the drainage connector being in a horn-shaped structure, the diameter of one end of the drainage connector close to the valve body being greater than the diameter of the other end of the drainage connector away from the valve body, a drainage port being formed on the surface of the drainage device and sealed by a plug, the drainage port being arranged corresponding to the outer periphery of the drainage connector, and the media introduced through the drainage port being mixed with the media passing through the drainage connector and then output from the drainage device.

[0006] Compared with the prior art, the application has the advantages that a flow guide is installed at the water outlet end of the valve body to realize the flow guiding function. Specifically, a flow guide connector is installed in the flow guide, the flow guide connector has a horn-shaped structure, and the diameter of one end of the flow guide connector close to the valve body is greater than the diameter of the other end of the flow guide connector away from the valve body. According to Bernoulli's principle, the flow rate of the medium is increased to reduce the pressure of the medium. Correspondingly, a flow guide opening is formed on the surface of the flow guide and is sealed by a plug, and the flow guide opening is arranged at the outer periphery of the flow guide connector. Then, the user can operate the plug to open the flow guide opening and add the antifreeze medium to the flow guide opening, and the antifreeze medium entering the flow guide will be carried out of the flow guide by the medium passing through the flow guide connector. The flow guide connector has a horn-shaped structure, which realizes accurate introduction and uniform mixing of the antifreeze medium, and ensures the supplement effect of the water supply system. The user only needs to open the plug to add the antifreeze through the flow guide opening, without the need to disassemble the pipeline or stop the operation, which greatly improves the convenience of system maintenance. The flow guide opening is sealed by the plug, which can ensure the sealing of the system when not in use, preventing leakage and air from entering.

[0007] In some embodiments of the application, one end of the flow guide connector close to the valve body is referred to as the front end, and the other end of the flow guide connector away from the valve body is referred to as the rear end, the front end of the flow guide connector is sealingly connected with the inner wall of the flow guide, and the middle part of the flow guide connector has a spacing with the inner wall of the flow guide, and the medium introduced through the flow guide opening enters the spacing.

[0008] First, the front end of the flow guide connector is sealingly connected with the inner wall of the flow guide, which ensures that the medium entering the flow guide will pass through the flow guide connector. When the medium passes through the flow guide, the medium accelerates, and the pressure at this position is relatively small. There is a siphon effect at the spacing between the flow guide connector and the inner wall of the flow guide. When the user opens the plug, the medium will not be discharged from the flow guide opening, and the antifreeze poured into the flow guide opening can also be carried away by the siphon effect.

[0009] In the present application, for the convenience of description, the front and back of the components are mainly distinguished by the front and back order of the medium flow.

[0010] In some embodiments of the application, a flow guide pipe is installed in the flow guide, the flow guide pipe is installed at the rear side of the flow guide connector, and there is a spacing between the flow guide pipe and the flow guide connector, the inner diameter of the flow guide pipe is greater than the inner diameter of the rear end of the flow guide connector, and the inner diameter of the flow guide pipe is smaller than the inner diameter of the front end of the flow guide connector; the flow guide pipe is threadedly connected with the inner wall of the flow guide. In the present application, the flow guide pipe divides the flow guide into two parts, the inner diameter of the flow guide pipe is slightly larger than the inner diameter of the rear end of the flow guide connector, which can cooperate with the flow guide connector to realize flow guiding and avoid the interference of the subsequent pipeline environment.

[0011] In some embodiments of the present application, the drain pipe is in a bent structure as a whole, and the drain pipe includes a bent section, and the drain connector and the drain pipe are located on the front side of the bent section. That is, the medium passes through the drain connector and the drain pipe first, and then reaches the bent section of the drain pipe. Specifically, the drain pipe is in a bent structure of 90 degrees as a whole in the present application.

[0012] In some embodiments of the present application, the outer periphery of the water inlet end of the drain pipe is sequentially provided with a sealing ring and a clamping groove, the water inlet end of the drain pipe is inserted into the water outlet end of the valve body, the surface of the water outlet end of the valve body is provided with a clamping opening corresponding to the clamping groove, a clamping spring is installed at the clamping opening of the valve body, and the clamping spring is embedded into the clamping groove through the clamping opening. In the present application, the connection between the drain pipe and the valve body is a detachable clamping structure. The entire combined valve can be assembled according to the use requirements of the user to achieve non-standard use requirements.

[0013] In some embodiments of the present application, a check valve is installed at the water inlet end of the valve body, the water outlet end of the check valve is inserted into the valve body and clamped with the valve body, and a check valve is installed in the check valve; a check valve is arranged in the water inlet of the valve body; and the two check valves are connected in series.

[0014] Specifically, the outer periphery of the water outlet end of the check valve is sequentially provided with a sealing ring and a clamping groove, and a sealing gasket is further installed on the water outlet end surface of the check valve, the water inlet end surface of the valve body is provided with a clamping opening corresponding to the clamping groove, and a clamping spring is installed at the clamping opening of the valve body and embedded into the clamping groove through the clamping opening. Similarly, the present application can add check valves according to the use requirements of the user to assemble the entire combined valve to achieve non-standard use requirements.

[0015] In some embodiments of the present application, a control pipe is arranged in the middle of the valve body, the control pipe is arranged perpendicular to the valve body, the control pipe is in communication with the valve body, and the medium entering the valve body through the water inlet reaches the water outlet of the valve body through the control pipe.

[0016] In some embodiments of the present application, a water supplement assembly is installed at the upper end of the control pipe, and the lower end of the control pipe is open to form a drain outlet. After the pipeline of the water supply system is closed, the excess medium in the drain pipe flows back to the control pipe and is discharged through the drain outlet.

[0017] In some embodiments of the present application, the water supplement assembly includes a valve rod, one end of the valve rod is arranged to pass through the upper end of the control pipe and connected with a press switch, the other end of the valve rod is connected with a spring, and the spring applies an upward moving force to the valve rod; and the press switch is pressed to push the valve rod to move downward.

[0018] When the valve rod moves downward by a distance, the passages at both ends of the control pipe are opened, and at this time, the medium can flow through the control pipe to the water outlet of the valve body. That is, when the press switch is not pressed, the combined valve of the present application is in a closed state.

[0019] In some embodiments of the present application, a pressure reducing pipe is arranged between the valve body water inlet and the control pipe, and a pressure reducing valve is arranged in the pressure reducing pipe; the medium entering from the valve body water inlet passes through the pressure reducing valve and the control pipe in sequence and then reaches the valve body water outlet. The pressure reducing valve is used to reduce the pressure of the medium, thereby keeping the pressure stable.

[0020] The above-mentioned embodiments can be combined arbitrarily based on common knowledge in the art. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and thus should not be regarded as limiting the scope of the present application. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 is a structural schematic diagram of the present application;

[0023] Figure 2 is a top view of the present application;

[0024] Figure 3 is Figure 2 is a sectional view of the CC section;

[0025] Figure 4 is Figure 3 is an enlarged view of the check valve;

[0026] In the drawings, the reference signs are specifically explained as follows: 1, valve body; 2, control pipe; 3, pressure reducing pipe; 4, check valve; 5, flow inducer; 51, flow induction port; 13, valve stem; 14, press switch; 15, spring; 18, flow induction connector; 19, plug; 20, flow induction pipe; 21, clamping groove; 22, clamping spring; 23, clamping port. DETAILED DESCRIPTION

[0027] The present application will be described in detail below in conjunction with the accompanying drawings.

[0028] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0029] The automatic flow-inducing combined valve, embodiment one is as Figures 1 to 4As shown: The system includes a valve body 1, with a flow guide 5 installed at the outlet end of the valve body 1. A flow guide connector 18 is installed inside the flow guide 5. The flow guide connector 18 has a trumpet-shaped structure, with the diameter of the end of the flow guide connector 18 closer to the valve body 1 being larger than the diameter of the end farther from the valve body 1. According to Bernoulli's principle, this increases the flow velocity of the medium, thereby reducing the pressure of the medium. A flow port 51 is formed on the surface of the flow guide 5 and sealed by a plug 19. The flow port 51 is correspondingly located on the outer periphery of the flow guide connector 18. The user can operate the plug 19 to open the flow port 51 and add antifreeze or other media to it. The media introduced through the flow port 51 mixes with the media passing through the flow guide connector 18 and exits through the flow guide 5.

[0030] Users only need to open plug 19 and add antifreeze through drain port 51, without disassembling pipelines or shutting down the system, greatly improving the convenience of system maintenance. Drain port 51 uses a plug 19 sealing design to ensure the system's airtightness when not in use, preventing leakage and air ingress.

[0031] Example 2, as Figures 1 to 4 As shown, the end of the drain connector 18 closest to the valve body 1 is designated as the front end, and the end of the drain connector 18 furthest from the valve body 1 is designated as the rear end. The front end of the drain connector 18 is sealed to the inner wall of the drainer 5, and there is a gap between the middle of the drain connector 18 and the inner wall of the drainer 5. The medium introduced through the drain port 51 enters this gap. First, the front end of the drain connector 18 is sealed to the inner wall of the drainer 5, ensuring that all the medium entering the drainer 5 passes through the drain connector 18. As the medium passes through the drainer 5, it accelerates, resulting in lower pressure at this point. There is a siphon effect at the gap between the drain connector 18 and the inner wall of the drainer 5. Even if the user opens the plug 19, the medium will not be discharged from the drain port 51, and the antifreeze poured into the drain port 51 will also be carried away by the siphon effect.

[0032] In this application, for ease of description, the front and back of the components are mainly distinguished by the front and back order through which the medium flows.

[0033] A drainage tube 20 is installed inside the drainage device 5. The drainage tube 20 is installed on the rear side of the drainage connector 18, and there is a gap between the drainage tube 20 and the drainage connector 18. The inner diameter of the drainage tube 20 is larger than the inner diameter of the rear end of the drainage connector 18, and the inner diameter of the drainage tube 20 is smaller than the inner diameter of the front end of the drainage connector 18. The drainage tube 20 is threadedly connected to the inner wall of the drainage device 5. In this application, the drainage tube 20 is set to divide the drainage device 5 into two parts. The inner diameter of the drainage tube 20 is slightly larger than the inner diameter of the rear end of the drainage connector 18, which can cooperate with the drainage connector 18 to achieve drainage and avoid interference from the subsequent pipeline environment.

[0034] The drain 5 is a whole elbow structure, the drain 5 includes a bending section, the drain connector 18 and the drain pipe 20 are located at the front side of the bending section. That is, the medium will first pass through the drain connector 18 and the drain pipe 20, and then reach the bending section of the drain 5. Specifically, in the present application, the drain 5 is a whole elbow structure with a bending angle of 90 degrees.

[0035] The outer periphery surface of the water inlet end of the drain 5 is sequentially provided with a sealing ring and a clamping groove 21, the water inlet end of the drain 5 is inserted into the water outlet end of the valve body 1, the water outlet end surface of the valve body 1 is provided with a clamping opening 23 corresponding to the clamping groove 21, a clamping spring 22 is installed at the clamping opening 23 of the valve body 1, and the clamping spring 22 is embedded into the clamping groove 21 through the clamping opening 23. In the present application, the connection between the drain 5 and the valve body 1 is a detachable clamping structure. The whole combined valve can be assembled according to the use requirements of the user to realize the non-standard use requirements.

[0036] The other contents of the second embodiment are the same as those of the first embodiment.

[0037] As shown in the third embodiment, Figures 1 to 3 the water inlet end of the valve body 1 is provided with a check valve 4, the water outlet end of the check valve 4 is inserted into the valve body 1 and clamped with the valve body 1, and a check valve is installed in the check valve 4; a check valve is installed in the water inlet of the valve body 1; the two check valves are connected in series. Specifically, the outer periphery surface of the water outlet end of the check valve 4 is sequentially provided with a sealing ring and a clamping groove 21, and a sealing gasket is further installed on the water outlet end surface of the check valve 4, the water inlet end surface of the valve body 1 is provided with a clamping opening 23 corresponding to the clamping groove 21, a clamping spring 22 is installed at the clamping opening 23 of the valve body 1, and the clamping spring 22 is embedded into the clamping groove 21 through the clamping opening 23. Similarly, the present application can add the check valve 4 according to the use requirements of the user to assemble the whole combined valve to realize the non-standard use requirements.

[0038] The control pipe 2 is vertically arranged in the middle of the valve body 1, the control pipe 2 is in communication with the valve body 1, and the medium entering the valve body 1 through the water inlet reaches the water outlet of the valve body 1 through the control pipe 2.

[0039] The upper end of the control pipe 2 is provided with a water supplement assembly, and the lower end of the control pipe 2 is open to form a drain outlet. After the pipeline of the water supply system is closed, the excess medium in the drain 5 will flow back to the control pipe 2 and be discharged through the drain outlet.

[0040] The water replenishing assembly comprises a valve rod 13, one end of which extends out of the upper end of the control pipe 2 and is connected with a press switch 14, and the other end of the valve rod 13 is connected with a spring 15, which applies a force to the valve rod 13 to move upward; and the press switch 14 is pressed to push the valve rod 13 to move downward. After the valve rod 13 moves downward by a distance, the passages at both ends of the control pipe 2 are opened, and at this time, the medium can flow to the water outlet of the valve body 1 through the control pipe 2. That is, when the press switch 14 is not pressed, the combined valve of the present application is in a closed state.

[0041] The water inlet of the valve body 1 is provided with a pressure reducing pipe 3, and a pressure reducing valve is installed in the pressure reducing pipe 3; the medium entering from the water inlet of the valve body 1 passes through the pressure reducing valve and the control pipe 2 in sequence and then reaches the water outlet of the valve body 1. The pressure reducing valve is used to reduce the pressure of the medium, so as to keep the pressure stable.

[0042] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0043] The above has described the present application in detail, and the principles and implementation modes of the present application are described by using specific examples. The above description of the embodiments is only used to help understand the present application and the core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An automatic drainage combination valve characterized by, The valve body (1) is provided with a flow guide (5) at the water outlet end, and the flow guide (5) is provided with a flow guide connector (18) therein, the flow guide connector (18) is in a horn structure, the diameter of the end of the flow guide connector (18) close to the valve body (1) is larger than that of the end of the flow guide connector (18) away from the valve body (1), the surface of the flow guide (5) is provided with a flow guide port (51) and is sealed by a plug (19), the flow guide port (51) is arranged on the outer periphery of the flow guide connector (18), and the medium introduced through the flow guide port (51) is mixed with the medium passing through the flow guide connector (18) and then is output from the flow guide (5).

2. The automatic priming combination valve of claim 1, wherein, The end of the flow guide connector (18) close to the valve body (1) is referred to as the front end, the end of the flow guide connector (18) away from the valve body (1) is referred to as the rear end, the front end of the flow guide connector (18) is sealingly connected with the inner wall of the flow guide (5), and the middle part of the flow guide connector (18) is spaced from the inner wall of the flow guide (5), and the medium introduced through the flow guide port (51) enters the space.

3. The automatic priming combination valve of claim 2, wherein, The flow guide (5) is provided with a flow guide pipe (20) therein, the flow guide pipe (20) is arranged at the rear side of the flow guide connector (18), and the flow guide pipe (20) is spaced from the flow guide connector (18), the inner diameter of the flow guide pipe (20) is larger than that of the rear end of the flow guide connector (18), and the inner diameter of the flow guide pipe (20) is smaller than that of the front end of the flow guide connector (18); the flow guide pipe (20) is threadedly connected with the inner wall of the flow guide (5).

4. The automatic priming combination valve of claim 1, wherein, The flow guide (5) is in a bent pipe structure, and the flow guide (5) comprises a bent section, and the flow guide connector (18) and the flow guide pipe (20) are arranged at the front side of the bent section.

5. The automatic priming combination valve of claim 1, wherein, The outer periphery of the water inlet end of the flow guide (5) is sequentially provided with a sealing ring and a clamping groove (21), the water inlet end of the flow guide (5) is inserted into the water outlet end of the valve body (1), the surface of the water outlet end of the valve body (1) is provided with a clamping opening (23) corresponding to the clamping groove (21), and a clamping spring (22) is arranged at the clamping opening (23) of the valve body (1) and is embedded into the clamping groove (21) through the clamping opening (23).

6. The automatic drainage combination valve of claim 1, wherein, The water inlet end of the valve body (1) is provided with a check valve (4), the water outlet end of the check valve (4) is inserted into the valve body (1) and is clamped with the valve body (1), and a check valve is arranged in the check valve (4); a check valve is arranged in the water inlet of the valve body (1); and the two check valves are connected in series.

7. The automatic priming combination valve of claim 1, wherein, The middle part of the valve body (1) is provided with a control pipe (2), the control pipe (2) is arranged perpendicularly to the valve body (1), the control pipe (2) is in communication with the valve body (1), and the medium introduced into the water inlet of the valve body (1) reaches the water outlet of the valve body (1) through the control pipe (2).

8. The automatic priming combination valve of claim 7, wherein, The upper end of the control pipe (2) is provided with a water replenishing assembly, and the lower end of the control pipe (2) is open to form a drain port.

9. The automatic priming combination valve of claim 8, wherein, The water replenishing assembly comprises a valve rod (13), one end of the valve rod (13) is arranged to pass through the upper end of the control pipe (2) and is connected with a pressing switch (14), the other end of the valve rod (13) is connected with a spring (15), the spring (15) applies an upward moving force to the valve rod (13), and pressing the pressing switch (14) pushes the valve rod (13) to move downward.

10. The automatic priming combination valve of claim 7, wherein, The valve body (1) water inlet and control pipe (2) are provided with pressure reducing pipe (3), pressure reducing pipe (3) is installed with pressure reducing valve; The medium from the valve body (1) water inlet passes through pressure reducing valve, control pipe (2) in proper order and reaches the water outlet of valve body (1).

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