Three-way valve

Abstract

The utility model relates to the technical field of three-way valve bonnets, in particular to a three-way valve, which comprises a three-way valve body, a positioning seat, a limiting plate, a guide rod, a spring, a sealing groove, a positioning ring, a positioning rod and a sealing ring. The surface of the three-way valve body is sleeved with the positioning seat, and the side face of the positioning seat is provided with the limiting plate and the guide rod. The valve cap has the beneficial effects that when the valve cap is used, the limiting plate is pulled firstly, then one end of the valve cap can be directly inserted into the sealing groove, the limiting plate can be loosened after the positioning rod penetrates through the through hole, and the limiting plate can be reset through the elastic force of the spring so that the limiting plate can be inserted into the positioning rod; therefore, the valve bonnet can be fixedly connected with the three-way valve body, and the problem that the valve bonnet is loosened after long-time use is solved.

Description

Technical Field

[0001] The utility model relates to the field of three-way valve bonnets, in particular to a three-way valve. Background Art

[0002] Generally speaking, a three-way valve has three flow connection ports. For example, two flow connection ports can be used as inlets and another as an outlet for mixing inlet fluid flow, or one inlet and two outlets can be used for separating outlet fluid flow.

[0003] China Patent Network CN206754483U discloses a three-way valve, including a valve body, a valve core and a valve cap, the valve body is provided with a drain pipe and a connecting concave platform, the drain pipe is welded to the outside of the valve body, the connecting concave platform is opened on the inner side of the bottom of the valve body, the valve core is penetrated in the valve body, the valve core is provided with a drain port, a rotating shaft and a connecting boss, the drain port is opened on the outside of the valve core, the rotating shaft is welded to the top of the valve core, a connecting screw hole is opened on the outside of the rotating shaft, the connecting boss is welded to the bottom of the valve core, and the connecting boss is buckled on the connecting concave platform, the valve cap is provided with a connecting jack and a connecting counterbore, the connecting jack is opened at the bottom of the valve cap, the connecting jack is sleeved on the rotating shaft, the connecting counterbore is opened on the outside of the valve cap, and a connecting bolt is penetrated in the connecting counterbore. The utility model has a simple structure and can easily control the flow direction of the medium.

[0004] However, in the above technical solution, the valve cap and the three-way valve body are mainly connected and fixed by plugging. Long-term use may cause the connection end between the valve cap and the three-way valve body to loosen, thereby affecting subsequent use. For this reason, the utility model proposes a three-way valve to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a three-way valve to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a three-way valve, the three-way valve comprising: a three-way valve body, a positioning seat is sleeved on the surface of the three-way valve body, a limit plate and a guide rod are arranged on the side of the positioning seat, a spring is sleeved on the surface of the guide rod, and a sealing groove is opened at one end of the three-way valve body;

[0007] A valve bonnet, a positioning ring is sleeved on the surface of the valve bonnet, and a positioning rod is arranged on the surface of the positioning ring;

[0008] A limiting hole is arranged on the side of the positioning rod, and one end of the limiting plate can pass through the limiting hole. The limiting plate and the guide rod are in an arc-shaped structure as a whole.

[0009] Preferably, the positioning ring is fixedly connected to the surface of the valve bonnet, one end of the valve bonnet can be inserted into the sealing groove, one end of the positioning rod is fixedly connected to the surface of the positioning ring, and a sealing gasket is arranged in the sealing groove.

[0010] Preferably, a thread is provided at one end of the three-way valve body, a positioning seat is screwed onto the thread, the positioning seat is an annular plate structure, and a positioning nut is sleeved on the surface of the positioning seat.

[0011] Preferably, a through hole is opened on the surface of the positioning seat, one end of the positioning rod can pass through the through hole, and a vertical plate is arranged on the surface of the positioning seat.

[0012] Preferably, one end of the guide rod is fixedly connected to the surface of the vertical plate, one end of the spring is fixedly connected to the surface of the vertical plate, and the other end of the spring is fixedly connected to the end surface of the limiting plate.

[0013] Preferably, a sliding hole is opened on the surface of the limit plate, the guide rod can be inserted into the sliding hole, and a baffle is arranged on the surface of the guide rod, and the baffle can be displaced in the sliding hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The closure of the valve cap is then retracted to allow the valve cap to be inserted into the closure member so that the closure member can be retracted and the valve cap can be retracted to allow the valve cap to be retracted and the closure member to be retracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model when the structure is tilted;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 This is a schematic diagram of the main structure of the three-way valve of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the structural positioning seat of the utility model.

[0021] In the figure: 1. three-way valve body; 2. positioning seat; 3. guide rod; 4. spring; 5. sealing groove; 6. valve cap; 7. positioning ring; 8. positioning rod; 9. positioning nut; 10. through hole; 11. vertical plate; 12. limit plate; 13. sliding hole; 14. baffle; 15. sealing gasket; 16. limit hole. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: a three-way valve, the three-way valve comprising: a three-way valve body 1, a positioning seat 2 is sleeved on the surface of the three-way valve body 1, a limiting plate 12 and a guide rod 3 are arranged on the side of the positioning seat 2, a spring 4 is sleeved on the surface of the guide rod 3, a sealing groove 5 is opened at one end of the three-way valve body 1; a valve cap 6, a positioning ring 7 is sleeved on the surface of the valve cap 6, and a positioning rod 8 is arranged on the surface of the positioning ring 7;

[0025] When in use, first pull the limit plate 12 and then insert one end of the valve cap 6 directly into the sealing groove 5, so that the positioning rod 8 passes through the through hole 10 and then the limit plate 12 can be loosened, and the limit plate 12 can be reset by the elastic force of the spring 4 so that the limit plate 12 is inserted into the positioning rod 8, so that the valve cap 6 can be fixedly connected to the three-way valve body 1 to avoid the problem of the valve cap 6 loosening after long-term use.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, in order to facilitate the connection between the valve bonnet 6 and the three-way valve body 1, a sealing groove 5 is provided, a positioning ring 7 is fixedly connected to the surface of the valve bonnet 6, one end of the valve bonnet 6 can be inserted into the sealing groove 5, one end of the positioning rod 8 is fixedly connected to the surface of the positioning ring 7, a sealing gasket 15 is provided in the sealing groove 5, one end of the three-way valve body 1 is provided with a thread, the positioning seat 2 is screwed on the thread, the positioning seat 2 is an annular plate structure, the surface of the positioning seat 2 is sleeved with a positioning nut 9, the surface of the positioning seat 2 is provided with a through hole 10, one end of the positioning rod 8 can pass through the through hole 10, and the surface of the positioning seat 2 is provided with a vertical plate 11;

[0028] When in use, one end of the valve bonnet 6 can be first inserted into the sealing groove 5, and the sealing gasket 15 set in the sealing groove 5 can improve the connection sealing between the valve bonnet 6 and the three-way valve body 1, and then the positioning rod 8 is passed through the through hole 10 to cooperate with the limit plate 12 to fix the valve bonnet 6. The position of the positioning seat 2 on the three-way valve body 1 can be adjusted by rotating the positioning nut 9 to improve the extrusion of the valve bonnet 6 and the sealing gasket 15, thereby improving the sealing.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, in order to facilitate the fixing of the positioning rod 8, a limiting plate 12 is provided, one end of the guide rod 3 is fixedly connected to the surface of the vertical plate 11, one end of the spring 4 is fixedly connected to the surface of the vertical plate 11, and the other end of the spring 4 is fixedly connected to the end face of the limiting plate 12. A sliding hole 13 is provided on the surface of the limiting plate 12, and the guide rod 3 can be inserted into the sliding hole 13. A baffle 14 is provided on the surface of the guide rod 3, and the baffle 14 can be displaced in the sliding hole 13. A limiting hole 16 is provided on the side of the positioning rod 8, and one end of the limiting plate 12 can pass through the limiting hole 16. The limiting plate 12 and the guide rod 3 are in an arc-shaped structure as a whole;

[0031] When in use, the limiting plate 12 can be used to pass through the limiting hole 16 to fix the positioning rod 8. The setting of the guide rod 3 can guide the displacement of the limiting plate 12. The baffle 14 cooperates with the sliding hole 13 to prevent the limiting plate 12 from detaching from the guide rod 3. The setting of the spring 4 can limit the limiting plate 12 on the one hand, and on the other hand, it can facilitate the reset after pulling the limiting plate 12.

[0032] In actual use, first pull the limit plate 12 and then insert one end of the valve cap 6 directly into the sealing groove 5, so that the positioning rod 8 passes through the through hole 10 and the limit plate 12 can be loosened, and the limit plate 12 can use the elastic force of the spring 4 to reset the limit plate 12 to insert the limit plate 12 into the positioning rod 8, so that the valve cap 6 and the three-way valve body 1 can be fixedly connected to avoid the problem of the valve cap 6 loosening after long-term use. In this way, the traditional valve cap 6 and the three-way valve body 1 are mainly connected and fixed by plugging, which may cause the connection end of the valve cap 6 and the three-way valve body 1 to loosen after long-term use, thereby affecting the subsequent use.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-way valve, characterized in that: The three-way valve comprises: a three-way valve body (1), a positioning seat (2) is sleeved on the surface of the three-way valve body (1), a limiting plate (12) and a guide rod (3) are arranged on the side of the positioning seat (2), a spring (4) is sleeved on the surface of the guide rod (3), and a sealing groove (5) is opened at one end of the three-way valve body (1); A valve cap (6), a positioning ring (7) is sleeved on the surface of the valve cap (6), and a positioning rod (8) is arranged on the surface of the positioning ring (7); The positioning ring (7) is fixedly connected to the surface of the valve cap (6), one end of the valve cap (6) can be inserted into the sealing groove (5), one end of the positioning rod (8) is fixedly connected to the surface of the positioning ring (7), and a sealing gasket (15) is arranged in the sealing groove (5); A limiting hole (16) is provided on the side of the positioning rod (8), and one end of the limiting plate (12) can pass through the limiting hole (16). The limiting plate (12) and the guide rod (3) are integrally formed into an arc-shaped structure.

2. A three-way valve according to claim 1, characterized in that: One end of the three-way valve body (1) is provided with a thread, and the positioning seat (2) is screwed onto the thread. The positioning seat (2) is an annular plate structure, and a positioning nut (9) is sleeved on the surface of the positioning seat (2).

3. A three-way valve according to claim 1, characterized in that: A through hole (10) is provided on the surface of the positioning seat (2), one end of the positioning rod (8) can pass through the through hole (10), and a vertical plate (11) is provided on the surface of the positioning seat (2).

4. A three-way valve according to claim 1, characterized in that: One end of the guide rod (3) is fixedly connected to the surface of the vertical plate (11), one end of the spring (4) is fixedly connected to the surface of the vertical plate (11), and the other end of the spring (4) is fixedly connected to the end surface of the limit plate (12).

5. A three-way valve according to claim 1, characterized in that: The surface of the limit plate (12) is provided with a sliding hole (13), the guide rod (3) can be inserted into the sliding hole (13), and the surface of the guide rod (3) is provided with a baffle (14), which can be displaced in the sliding hole (13).

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