Backflow prevention type three-way connector

Abstract

The utility model discloses an anti-backflow type three-way connector, and particularly relates to the field of three-way connectors, the anti-backflow type three-way connector comprises a three-way connector main body, an anti-backflow mechanism is arranged in the three-way connector main body, the anti-backflow mechanism comprises an elastic hinge fixedly arranged on the three-way connector main body, and a flow stopping plate is fixedly arranged on the elastic hinge. A supporting plate is fixedly arranged in the three-way connector body, a circle of first clamping groove is formed in the supporting plate, a first clamping block is fixedly arranged at the bottom of the flow stopping plate, and a first magnetic suction plate is fixedly arranged in the flow stopping plate. When the water inlet pipe stops conveying water flow, the elastic hinge can automatically drive the flow stopping plate to be closed, in order to ensure reliable closing of the flow stopping plate, the first magnetic attraction plate is arranged on the flow stopping plate, the second magnetic attraction plate is fixed to the supporting plate, the first magnetic attraction plate and the second magnetic attraction plate attract each other through magnetic force, the flow stopping plate is stably covered, and therefore the flow stopping effect is improved. Therefore, water backflow is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way joints, and more specifically, the utility model relates to an anti-backflow type three-way joint. Background Technique

[0002] A three-way joint is a component used to connect three pipes together. It is made of metal or plastic and has various interface types such as threads, welding, and flanges. Through three interfaces, the diversion or confluence of media is realized to ensure smooth flow. It is mainly applied to water supply and drainage systems and industrial pipeline systems, and has the advantages of versatility, convenient installation, strong durability, and good economy.

[0003] After retrieval, the patent with the publication number CN201803041U discloses a three-way joint. The reduced pipe orifice is provided at the joint of the three-way joint mainly to facilitate the connection with a plastic hose. After connection, it is firm and does not leak water. The included angle between the two outlet pipes is less than 60 degrees, which can meet the requirement of passing through the same plastic pipe, saving raw materials and not requiring extra grooves to be opened, thus saving labor.

[0004] However, the above device has the following defects: Although the above three-way connector can effectively prevent water leakage, it cannot completely avoid liquid backflow. When the water supply pipe stops delivering water, the liquid may flow back to the water supply pipe due to gravity or external factors, resulting in unnecessary backflow phenomena. Content of the Utility Model

[0005] In order to overcome the above defects of the prior art, an anti-backflow type three-way joint is provided to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] An anti-backflow type three-way joint, including a three-way joint main body, and an anti-backflow mechanism is provided inside the three-way joint main body;

[0008] The anti-backflow mechanism includes an elastic hinge fixedly arranged on the three-way joint main body, a stop plate fixedly arranged on the elastic hinge, a support plate fixedly arranged inside the three-way joint main body, a first card slot is provided in a circle inside the support plate, a first card block is fixedly arranged at the bottom of the stop plate, a first magnetic attraction plate is fixedly arranged inside the stop plate, a second magnetic attraction plate is fixedly arranged inside the support plate, and a rubber pad is wrapped on the first card block;

[0009] With the above technical solution, when the water inlet pipe stops delivering water, the elastic hinge will automatically drive the stop plate to close. To ensure the reliable closure of the stop plate, a first magnetic plate is provided on the stop plate, and a second magnetic plate is fixed on the support plate. These two magnetic plates attract each other by magnetic force, covering the stop plate firmly, thus effectively preventing the backflow of water. In addition, to further enhance the fixation of the stop plate, a first latch is fixedly provided on the stop plate, and a first slot matching it is opened on the support plate. A rubber pad is also provided at the connection, which can significantly increase the sealing performance of the connection and prevent any possible water leakage.

[0010] Further, a water inlet pipe is provided at the bottom of the tee joint body, and two water outlet pipes are provided inside the tee joint body;

[0011] With the above technical solution, the water inlet pipe is provided for convenient water transportation, and the water outlet pipes are provided for convenient water delivery.

[0012] Further, flange plates are fixedly provided on both the two water outlet pipes and the water inlet pipe, and four threaded through holes are opened in each of the three flange plates;

[0013] With the above technical solution, the flange plates are provided to facilitate the connection of the water inlet pipe and the water outlet pipes.

[0014] Further, a plurality of threaded grooves are opened in the tee joint body, and bolts are threadedly connected in each of the threaded grooves;

[0015] With the above technical solution, the bolts can connect the threaded grooves and the threaded through holes.

[0016] Further, an FGJ water flow sensor is fixedly provided on the inner wall of the water inlet pipe;

[0017] With the above technical solution, the FGJ water flow sensor can detect whether there is water backflow after the water inlet pipe stops delivering water.

[0018] Further, a signal generator is fixedly provided on the outer wall of the water inlet pipe;

[0019] With the above technical solution, the signal transmitter can send the data detected by the FGJ water flow sensor to the supervisor's computer terminal in real time.

[0020] Further, three second slots are opened on the tee joint body, and rubber latches are fixedly provided on both the two water outlet pipes and the water inlet pipe;

[0021] With the above technical solution, rubber latches are provided at the connection, and this design effectively increases the sealing performance of the connection.

[0022] The technical effects and advantages of the present utility model:

[0023] 1. A reflux - prevention type three - way joint proposed by the present utility model. When the water inlet pipe stops delivering water flow, the elastic hinge will automatically drive the stop plate to close. To ensure the reliable closure of the stop plate, a first magnetic plate is provided on the stop plate, and a second magnetic plate is fixed on the support plate. These two magnetic plates attract each other by magnetic force, covering the stop plate firmly, thereby effectively preventing the reflux of water. In addition, to further enhance the fixation of the stop plate, a first clamping block is fixedly arranged on the stop plate, and a first clamping groove matching with it is opened on the support plate. A rubber gasket is also provided at the connection, which can significantly increase the sealing performance of the connection, thereby preventing any possible water leakage situation.

[0024] 2. A reflux - prevention type three - way joint proposed by the present utility model. Through the connection of bolts with the threaded through - holes and threaded grooves, the flange can be firmly installed on the main body of the three - way joint, enabling the water outlet pipe and the water inlet pipe to be easily installed and disassembled. This design greatly simplifies the maintenance and repair work of the system, solves the problem that it is difficult to clean the impurities inside the main body of the three - way joint after long - term use. At the same time, rubber clamping blocks are provided at the connection, which effectively increases the sealing performance of the connection, is not only convenient for disassembly, but also improves the sealing performance of the system. Description of the Drawings

[0025] Figure 1 It is the structural diagram proposed by the present utility model;

[0026] Figure 2 It is the structural diagram of the main body of the three - way joint and the water outlet pipe proposed by the present utility model;

[0027] Figure 3 It is the semi - sectional view structural diagram proposed by the present utility model;

[0028] Figure 4 It is the sectional view structural diagram of the stop - plate part proposed by the present utility model;

[0029] Figure 5 It is the structural diagram of the stop - plate part proposed by the present utility model.

[0030] Reference numerals are: 1. Main body of the three - way joint; 2. Elastic hinge; 3. Stop plate; 4. Support plate; 5. First clamping groove; 6. First clamping block; 7. First magnetic plate; 8. Second magnetic plate; 9. Water inlet pipe; 10. Water outlet pipe; 11. Flange; 12. Threaded through - hole; 13. Threaded groove; 14. Bolt; 15. FGJ water flow sensor; 16. Signal generator; 17. Rubber gasket; 18. Second clamping groove; 19. Rubber clamping block. Detailed Embodiment

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] As shown in the attached Figures 1-5 figure, a non-return type three-way joint includes a three-way joint main body 1, and a non-return mechanism is provided inside the three-way joint main body 1;

[0033] The non-return mechanism includes an elastic hinge 2 fixedly arranged on the three-way joint main body 1. A stop plate 3 is fixedly arranged on the elastic hinge 2. A support plate 4 is fixedly arranged inside the three-way joint main body 1. A first card slot 5 is formed in a circle inside the support plate 4. A first card block 6 is fixedly arranged at the bottom of the stop plate 3. A first magnetic attraction plate 7 is fixedly arranged inside the stop plate 3. A second magnetic attraction plate 8 is fixedly arranged inside the support plate 4. A rubber pad 17 is wrapped on the first card block 6. When the water inlet pipe 9 stops delivering water flow, the elastic hinge 2 will automatically drive the stop plate 3 to close. In order to ensure the reliable closing of the stop plate 3, a first magnetic attraction plate 7 is arranged on the stop plate 3, and a second magnetic attraction plate 8 is fixed on the support plate 4. These two magnetic attraction plates attract each other by magnetic force, so that the stop plate 3 is firmly covered, thus effectively preventing the backflow of water. In addition, in order to further enhance the fixing of the stop plate 3, a first card block 6 is fixedly arranged on the stop plate 3, and a first card slot 5 that cooperates with it is formed on the support plate 4. A rubber pad 17 is also arranged at the connection, and this rubber pad 17 can significantly increase the sealing performance of the connection, thereby preventing any possible water leakage.

[0034] In some embodiments, according to Figures 1-5As shown in the figure, a water inlet pipe 9 is provided at the bottom of the tee joint body 1. Two water outlet pipes 10 are provided inside the tee joint body 1. The water inlet pipe 9 is provided to facilitate water transportation, and the water outlet pipes 10 are provided to facilitate water delivery. Flange plates 11 are fixedly provided on both the two water outlet pipes 10 and the water inlet pipe 9. Four threaded through holes 12 are provided in each of the three flange plates 11. The flange plates 11 are provided to facilitate the connection of the water inlet pipe 9 and the water outlet pipes 10. A plurality of threaded grooves 13 are provided inside the tee joint body 1. A bolt 14 is threadedly connected in each threaded groove 13. The bolt 14 can connect the threaded groove 13 and the threaded through hole 12. The inner wall of the water inlet pipe 9 is fixedly provided with an FGJ water flow sensor 15. The FGJ water flow sensor 15 can detect whether there is water backflow after the water inlet pipe 9 stops delivering water. A signal generator 16 is fixedly provided on the outer wall of the water inlet pipe 9. The signal transmitter 16 is provided to send the data detected by the FGJ water flow sensor 15 to the supervisor's computer terminal in real time. Three second card slots 18 are provided on the tee joint body 1. Rubber blocks 19 are fixedly provided on both the two water outlet pipes 10 and the water inlet pipe 9. The rubber blocks 19 are provided at the connection, and this design effectively increases the sealing performance of the connection.

[0035] The working principle of the present utility model: When the present utility model is in use, only the water inlet pipe 9 and the water outlet pipes 10 need to be connected to the tee joint body 1. When the water inlet pipe 9 delivers water to the tee joint body 1, the stop plate 4 will be washed open, so that the water can be smoothly transported to the water outlet pipes 10. When the water inlet pipe 9 stops delivering water, the elastic hinge 2 will drive the stop plate 3 to close. A first magnetic plate 7 is provided on the stop plate 3, and a second magnetic plate 8 is fixedly provided on the support plate 4. Through the magnetic attraction cooperation of the first magnetic plate 7 and the second magnetic plate 8, the stop plate 3 can be smoothly covered to prevent water backflow. A first block 6 is fixedly provided on the stop plate 3, and a first card slot 5 is provided on the support plate 4. A rubber gasket 17 is provided at the connection. The rubber gasket 17 can further increase the tightness of the connection and prevent water from leaking from the connection. By connecting the bolt 14 with the threaded through hole 12 and the threaded groove 13, the flange plate 11 can be fixedly installed on the three-way joint body 1, so that the water outlet pipes 10 and the water inlet pipe 9 can be used smoothly. Through this setting, the water outlet pipes 10 and the water inlet pipe 9 can be quickly installed and disassembled, solving the problem that it is difficult to clean the internal impurities after the tee joint body 1 is used for a long time. The rubber blocks 19 are snap-connected at the connection, which can effectively increase the sealing performance of the connection, and increase the sealing performance while being convenient for disassembly.

Claims

1. A backflow prevention three-way joint, comprising a three-way joint body (1), characterized in that: The three-way joint body (1) is provided with an anti-backflow mechanism; The backflow prevention mechanism comprises an elastic hinge (2) fixedly arranged on a three-way joint body (1), a stop plate (3) fixedly arranged on the elastic hinge (2), a support plate (4) fixedly arranged inside the three-way joint body (1), a circle of first clamping grooves (5) arranged inside the support plate (4), a first clamping block (6) fixedly arranged at the bottom of the stop plate (3), a first magnetic attraction plate (7) fixedly arranged inside the stop plate (3), a second magnetic attraction plate (8) fixedly arranged inside the support plate (4), and a rubber pad (17) wrapped around the first clamping block (6).

2. The anti-backflow three-way joint according to claim 1, characterized in that: A water inlet pipe (9) is provided at the bottom of the three-way joint body (1), and two water outlet pipes (10) are provided inside the three-way joint body (1).

3. The anti-backflow three-way joint according to claim 2, characterized in that: Flanges (11) are fixedly provided on the two water outlet pipes (10) and the water inlet pipe (9), and four threaded through holes (12) are provided in the three flanges (11).

4. The anti-backflow three-way joint according to claim 1, characterized in that: A plurality of thread grooves (13) are provided in the three-way joint body (1), and a bolt (14) is threadedly connected in each of the thread grooves (13).

5. The anti-backflow type three-way joint according to claim 2, characterized in that: An FGJ water flow sensor (15) is fixedly provided on the inner wall of the water inlet pipe (9).

6. The anti-backflow three-way joint according to claim 2, characterized in that: A signal generator (16) is fixedly provided on the outer wall of the water inlet pipe (9).

7. The anti-backflow type three-way joint according to claim 2, characterized in that: Three second clamping grooves (18) are provided on the three-way joint body (1), and rubber clamping blocks (19) are fixedly provided on the two water outlet pipes (10) and the water inlet pipe (9).

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