Multifunctional three-way valve

Abstract

The utility model relates to the technical field of valves, and discloses a multifunctional three-way valve which comprises a valve body, three pipelines are fixedly connected to the outer portion of the valve body, a main shaft is rotatably connected to the top of the valve body, a rotating handle is fixedly connected to the top of the main shaft, and an oil storage box is fixedly connected to the outer portion of the valve body. A pump box is fixedly connected to the exterior of the valve body, two reset springs are fixedly connected to the interior of the pump box, a piston is slidably connected to the interior of the pump box, a push rod is fixedly connected to the side, away from the pump box, of the piston, and an oil conveying pipe is fixedly connected to the top end of the pump box. The handle is pushed to enable the push rod to push the piston into the pump box to extrude the reset spring, the reset spring is stressed to rebound to push the piston outwards, and the lubricating oil in the oil storage box is pumped out and injected into the main shaft through the oil conveying pipe, so that the effect of conveniently injecting the lubricating oil through the oil injection mechanism is achieved, and the working efficiency is improved; and the practicability of the device is improved.

Description

Technical Field

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

[0002] A multifunctional three-way valve is a valve device with three ports (one inlet and two outlets). It is widely used in industrial piping systems to change the flow direction of media or distribute fluids. Its design and operating principle make it a vital role in many industrial processes. Based on the fluid interaction, multifunctional three-way valves can be divided into combining valves and diverting valves. A combining valve has two inlets, with the combined fluid flowing out through a single outlet; a diverting valve has a single inlet, with the divided fluid flowing out through two outlets. Furthermore, three-way valves can be categorized by their structure, including straight-through, T-type, and L-type.

[0003] During use, the multifunctional three-way valve needs to be regularly injected with lubricating oil into the main shaft to prevent rust from causing it to become unable to be turned. Most of the multifunctional three-way valves in the existing technology are not equipped with an automatic oil injection mechanism. When injecting lubricating oil, manual oil injection operation must be performed using other tools, which is time-consuming and labor-intensive, reduces operating efficiency, and reduces the practicality of the device. Utility Model Content

[0004] In order to make up for the above shortcomings, the present invention provides a multifunctional three-way valve, which aims to improve the problem that most multifunctional three-way valves in the prior art are not equipped with an automatic oil filling mechanism, resulting in low operating efficiency and low practicality of the device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a multifunctional three-way valve, comprising a valve body, the outside of the valve body is fixedly connected to three pipes, the top of the valve body is rotatably connected to the main shaft, the top of the main shaft is fixedly connected to the turning handle, the outside of the valve body is fixedly connected to an oil storage box, the outside of the valve body is fixedly connected to a pump box, the inside of the pump box is fixedly connected to two return springs, the inside of the pump box is slidably connected to a piston, the side of the piston away from the pump box is fixedly connected to a push rod, the top of the pump box is fixedly connected to an oil pipeline, and a lever mechanism is provided at the bottom of the turning handle, and the lever mechanism is provided to save effort when turning the turning handle.

[0006] As a further description of the above technical solution:

[0007] The lever mechanism includes two U-shaped frames, the top ends of the two U-shaped frames are fixedly connected to the bottom end of the turning handle, the interiors of the two U-shaped frames are rotatably connected to brackets, the interiors of the brackets are slidably connected to two limit blocks, an extrusion spring is fixedly connected between the two limit blocks, the opposite sides of the two limit blocks are fixedly connected to pin rods, and the interiors of the two U-shaped frames are provided with two clamping holes, and the pin rods are engaged with the clamping holes.

[0008] As a further description of the above technical solution:

[0009] A connecting pipe is fixedly connected between the oil storage box and the pump box, and a handle is fixedly connected to the side of the push rod away from the piston.

[0010] As a further description of the above technical solution:

[0011] The bottom of the pump box is fixedly connected with a one-way valve 1, and the top of the pump box is fixedly connected with a one-way valve 2.

[0012] As a further description of the above technical solution:

[0013] One end of the two return springs is fixedly connected to a side of the piston away from the push rod, and the push rod passes through a side of the pump box away from the piston.

[0014] As a further description of the above technical solution:

[0015] The outer cover of the turning handle is provided with an anti-slip cover.

[0016] As a further description of the above technical solution:

[0017] The two pin rods both pass through two sides of the bracket.

[0018] As a further description of the above technical solution:

[0019] A protective cover is provided on the outside of the bracket.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, when it is necessary to inject oil into the main shaft for lubrication, the handle is pushed to make the push rod push the piston into the pump box to squeeze the return spring. The return spring is forced to rebound and push the piston outward. In this way, the lubricating oil in the oil storage box is extracted and injected into the main shaft through the oil pipe. The one-way valve 1 below the pump box and the one-way valve 2 above the pump box prevent the lubricating oil from flowing back, thereby realizing the effect of convenient injection of lubricating oil through the oil injection mechanism. There is no need to use other tools for oiling, thereby improving the working efficiency and the practicality of the device.

[0022] 2. In the utility model, when the handle is turned to open and close the valve, the vertical downward bracket is rotated to a horizontal state, and the pins on both sides of the bracket are pressed inward to compress the extrusion spring and retract it into the interior of the bracket. After the bracket is completely rotated into the interior of the U-shaped frame, the extrusion spring rebounds and pushes the pin out of the interior of the bracket through the limit block to engage and fix it with the card hole. The handle can be rotated through the bracket, which realizes the effect of using the lever principle to make opening and closing the valve more labor-saving, thereby improving the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A perspective view of a multifunctional three-way valve is provided for the utility model;

[0024] Figure 2 An oil injection mechanism schematic view of a multifunctional three-way valve is provided for the utility model;

[0025] Figure 3 A support sectional view of a multifunctional three-way valve is provided for the utility model.

[0026] LEGEND:

[0027] 1, valve body; 2, pipeline; 3, main shaft; 4, handle; 5, oil storage box; 6, pump box; 7, connecting pipe; 8, reset spring; 9, piston; 10, push rod; 11, handle; 12, oil delivery pipe; 13, one-way valve one; 14, one-way valve two; 15, U-shaped frame; 16, clamping hole; 17, support; 18, limit block; 19, extrusion spring; 20, pin rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] WITH REFERENCE TO Figure 1 - Figure 2 An embodiment provided by the utility model: a multifunctional three-way valve, comprising a valve body 1, three pipelines 2 are fixedly connected outside the valve body 1, a main shaft 3 is rotationally connected to the top of the valve body 1, a handle 4 is fixedly connected to the top of the main shaft 3, an oil storage box 5 is fixedly connected outside the valve body 1, a pump box 6 is fixedly connected outside the valve body 1, two reset springs 8 are fixedly connected inside the pump box 6, a piston 9 is slidingly connected inside the pump box 6, a push rod 10 is fixedly connected to the side of the piston 9 away from the pump box 6, an oil delivery pipe 12 is fixedly connected to the top end of the pump box 6, a lever mechanism is arranged at the bottom of the handle 4, and the lever mechanism is arranged for more labor-saving when rotating the handle 4.

[0030] WITH REFERENCE TO Figure 2 - Figure 3The lever mechanism includes two U-shaped frames 15, the top ends of the two U-shaped frames 15 are fixedly connected to the bottom end of the handle 4, the interiors of the two U-shaped frames 15 are rotatably connected to brackets 17, the interiors of the brackets 17 are slidably connected to two limit blocks 18, an extrusion spring 19 is fixedly connected between the two limit blocks 18, the opposite sides of the two limit blocks 18 are fixedly connected to pin rods 20, and the interiors of the two U-shaped frames 15 are provided with two card holes 16, and the pin rods 20 are engaged with the card holes 16. A connecting pipe 7 is fixedly connected between the oil storage box 5 and the pump box 6, a handle 11 is fixedly connected to the side of the push rod 10 away from the piston 9, a one-way valve 13 is fixedly connected to the bottom of the pump box 6, and a one-way valve 2 14 is fixedly connected to the top of the pump box 6. One end of the two return springs 8 is fixedly connected to the side of the piston 9 away from the push rod 10. The push rod 10 passes through the side of the pump box 6 away from the piston 9. The outer sleeve of the turning handle 4 is provided with an anti-slip sleeve, and the two pin rods 20 pass through both sides of the bracket 17. A protective sleeve is provided on the outside of the bracket 17.

[0031] Working principle: When it is necessary to inject oil into the main shaft 3 for lubrication, push the handle 11 so that the push rod 10 pushes the piston 9 into the pump box 6 to squeeze the return spring 8. The return spring 8 rebounds under the force and pushes the piston 9 outward. In this way, the lubricating oil in the oil storage box 5 is extracted and injected into the main shaft 3 through the oil pipe 12. The one-way valve 13 below the pump box 6 and the one-way valve 2 14 above the pump box 6 prevent the lubricating oil from flowing back.

[0032] When turning the handle 4 to open or close the valve, the vertically downward bracket 17 is rotated to a horizontal state, and the pins 20 on both sides of the bracket 17 are pressed inward to compress the extrusion spring 19 and retract it into the interior of the bracket 17. After the bracket 17 is completely rotated into the interior of the U-shaped frame 15, the extrusion spring 19 rebounds and pushes the pin 20 out of the interior of the bracket 17 through the limit block 18 to engage and fix it with the card hole 16. The handle 4 can be turned through the bracket 17.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional three-way valve, comprising a valve body (1), characterized in that: The outside of the valve body (1) is fixedly connected to three pipes (2), the top of the valve body (1) is rotatably connected to a main shaft (3), the top of the main shaft (3) is fixedly connected to a turning handle (4), the outside of the valve body (1) is fixedly connected to an oil storage box (5), the outside of the valve body (1) is fixedly connected to a pump box (6), the inside of the pump box (6) is fixedly connected to two return springs (8), the inside of the pump box (6) is slidably connected to a piston (9), the side of the piston (9) away from the pump box (6) is fixedly connected to a push rod (10), the top of the pump box (6) is fixedly connected to an oil delivery pipe (12), and a lever mechanism is provided at the bottom of the turning handle (4), and the lever mechanism is provided to save effort when turning the turning handle (4).

2. A multifunctional three-way valve according to claim 1, characterized in that: The lever mechanism comprises two U-shaped frames (15), the top ends of the two U-shaped frames (15) are fixedly connected to the bottom end of the turning handle (4), the interiors of the two U-shaped frames (15) are rotatably connected to brackets (17), the interiors of the brackets (17) are slidably connected to two limit blocks (18), an extrusion spring (19) is fixedly connected between the two limit blocks (18), the opposite sides of the two limit blocks (18) are fixedly connected to pin rods (20), and the interiors of the two U-shaped frames (15) are provided with two clamping holes (16), and the pin rods (20) are engaged with the clamping holes (16).

3. The multifunctional three-way valve according to claim 1, characterized in that: A connecting pipe (7) is fixedly connected between the oil storage box (5) and the pump box (6), and a handle (11) is fixedly connected to the side of the push rod (10) away from the piston (9).

4. The multifunctional three-way valve according to claim 1, characterized in that: The bottom of the pump box (6) is fixedly connected to a one-way valve 1 (13), and the top of the pump box (6) is fixedly connected to a one-way valve 2 (14).

5. The multifunctional three-way valve according to claim 1, characterized in that: One end of each of the two return springs (8) is fixedly connected to a side of the piston (9) away from the push rod (10), and the push rod (10) passes through a side of the pump box (6) away from the piston (9).

6. The multifunctional three-way valve according to claim 1, characterized in that: The outer cover of the turning handle (4) is provided with an anti-slip cover.

7. The multifunctional three-way valve according to claim 2, characterized in that: The two pin rods (20) both pass through both sides of the bracket (17).

8. The multifunctional three-way valve according to claim 2, characterized in that: A protective cover is provided on the outside of the bracket (17).

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