Diesel engine high-temperature water inlet pressure adjusting device

Abstract

The utility model discloses a diesel engine high-temperature water inlet pressure adjusting device which comprises a valve body, an L-shaped block is fixedly connected to the upper surface of a valve cover, a sliding rod is slidably connected to the interior of the L-shaped block, an arc-shaped plate is fixedly connected to the left surface of the sliding rod, a plug pin is fixedly connected to the left surface of the arc-shaped plate, and the plug pin is fixedly connected to the lower surface of the valve cover. A first handle is fixedly connected to the left surface of the sliding rod, a spring is fixedly connected to the left surface of the arc-shaped plate, a limiting hole is formed in the valve rod, by rotating the valve rod, after adjustment is completed, the plug pin is aligned with the limiting hole, the first handle is pulled, the first handle drives the sliding rod to slide, and the sliding rod slides to drive the plug pin to slide; the top cover is inserted into the positioning hole, the first handle is loosened, the spring drives the arc-shaped plate to rebound the rod, the arc-shaped plate rebounds to drive the plug pin to be inserted into the limiting hole, the effect of preventing the valve rod from rotating is achieved, the accuracy and stability of valve rod control are improved, and the effect of preventing the valve rod from rotating at high temperature is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine heat dissipation, in particular to a high-temperature water inlet pressure regulating device for a diesel engine. Background Art

[0002] When a diesel engine is working, high-temperature and high-pressure gas will be generated in the cylinder. The cylinder head, cylinder liner, piston, air valve and other parts that come into contact with the high-temperature and high-pressure gas will absorb a large amount of heat and cause the temperature to rise sharply, thus affecting the service life of the diesel engine. Therefore, diesel engines usually use water cooling to dissipate heat from the diesel engine. In order to control the flow rate and pressure of the high-temperature water, a throttle valve is required.

[0003] The existing throttle valve usually controls the lifting and lowering of the valve core by threading the valve stem and the valve cover, but this method easily causes the valve stem to rotate, making it impossible for the valve core to limit the fluid pressure for a long time. In addition, the diesel engine has a high temperature during operation, and thermal expansion and contraction easily cause the valve stem to rebound. After searching, it was found that the technical solution provided by the utility model with application number CN202320240145.3 also has the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a high-temperature water inlet pressure regulating device for a diesel engine. By rotating the valve stem, when the adjustment is completed, the pin is aligned with the limit hole, and the first handle is pulled. The first handle drives the sliding rod to slide, and the sliding rod drives the pin to slide, and the top cover is inserted into the positioning hole. The first handle is released, and the spring drives the arc plate rebound rod. The arc plate rebounds and drives the pin to be inserted into the limit hole, so as to prevent the valve stem from rotating. In addition, the device also has the effect of improving the accuracy and stability of the valve stem control and preventing the valve stem from rotating at high temperature.

[0005] The utility model also provides a diesel engine high-temperature water inlet pressure regulating device having the above-mentioned diesel engine high-temperature water inlet pressure regulating device, characterized in that it comprises: a valve body, the outer surface of the valve body is provided with a water inlet, the lower surface of the valve body is provided with a water outlet, the interior of the valve body is slidably connected with a valve core, the outer surface of the valve core is threadedly connected with a valve stem, the outer surface of the valve stem is threadedly connected with a valve cover, the lower surface of the valve cover is fixedly connected with a sealing ring, the interior of the valve cover is threadedly connected with a threaded rod, the outer surface of the valve core is fixedly connected with a first slider, and the interior of the valve body is provided with a first slide groove;

[0006] An L-shaped block is fixedly connected to the upper surface of the valve cover, a sliding rod is slidably connected to the inside of the L-shaped block, an arc-shaped plate is fixedly connected to the left surface of the sliding rod, a latch is fixedly connected to the left surface of the arc-shaped plate, a first handle is fixedly connected to the left surface of the sliding rod, a second sliding groove is arranged inside the L-shaped block, a second sliding block is fixedly connected to the lower surface of the arc-shaped plate, a spring is fixedly connected to the left surface of the arc-shaped plate, and a limiting hole is arranged inside the valve stem.

[0007] According to the diesel engine high-temperature water inlet pressure regulating device, one end of the spring away from the arc plate is fixedly connected to the L-shaped block, and the inner surface of the second slide groove is slidably connected to the second sliding block.

[0008] According to the diesel engine high-temperature water inlet pressure regulating device, the outer surface of the valve stem is slidably connected to the sealing ring, and the outer surface of the sealing ring is slidably connected to the valve body.

[0009] According to the diesel engine high-temperature water inlet pressure regulating device, the number of the limiting holes is multiple and distributed left and right, and the outer surface of the latch is slidably connected to the limiting hole.

[0010] According to the diesel engine high-temperature water inlet pressure regulating device, a positioning rod is fixedly connected to the upper surface of the valve body, and the outer surface of the positioning rod is slidably connected to the valve cover. There are two positioning rods distributed left and right.

[0011] According to the diesel engine high-temperature water inlet pressure regulating device, the outer surface of the threaded rod is threadedly connected to the valve body, and the number of the threaded rods is multiple and distributed in a circular row.

[0012] According to the diesel engine high-temperature water inlet pressure regulating device, a clamping block is hinged on the upper surface of the L-shaped block, a clamping slot is fixedly connected to the upper surface of the arc-shaped plate, and the clamping block is engaged with the clamping slot.

[0013] According to the diesel engine high-temperature water inlet pressure regulating device, the outer surface of the valve stem is fixedly connected to the second handle, and the outer surface of the first sliding block is slidably connected to the first sliding groove.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is the overall structural diagram of a high-temperature water inlet pressure regulating device for a diesel engine according to the utility model;

[0017] Figure 2 Based Figure 1 A schematic diagram of the structure enlargement at the center A;

[0018] Figure 3 This is a cross-sectional view of the overall structure of a high-temperature water inlet pressure regulating device for a diesel engine according to the utility model;

[0019] Figure 4 The utility model is a partial structural sectional view of a high-temperature water inlet pressure regulating device for a diesel engine.

[0020] Legend:

[0021] 1. Valve body; 2. Water inlet; 3. Water outlet; 4. Valve core; 5. Valve stem; 6. Valve cover; 7. Sealing ring; 8. Threaded rod; 9. First slider; 10. First slide groove; 11. L-shaped block; 12. Sliding rod; 13. Arc plate; 14. Latch; 15. First handle; 16. Second slide groove; 17. Second slider; 18. Spring; 19. Limit hole; 20. Positioning rod; 21. Block; 22. Slot; 23. Second handle. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model embodiment is a high-temperature water inlet pressure regulating device for a diesel engine, which includes a valve body 1, a water inlet 2 is provided on the outer surface of the valve body 1, a water outlet 3 is provided on the lower surface of the valve body 1, a valve core 4 is slidably connected to the inside of the valve body 1, a valve stem 5 is threadedly connected to the outer surface of the valve core 4, a valve cover 6 is threadedly connected to the outer surface of the valve stem 5, a sealing ring 7 is fixedly connected to the lower surface of the valve cover 6, the outer surface of the sealing ring 7 is slidably connected to the valve body 1, the outer surface of the valve stem 5 is slidably connected to the sealing ring 7, a threaded rod 8 is threadedly connected to the inside of the valve cover 6, the outer surface of the threaded rod 8 is threadedly connected to the valve body 1, the number of the threaded rods 8 is multiple and distributed in a circular row, a first slider 9 is fixedly connected to the outer surface of the valve core 4, a first slide groove 10 is provided inside the valve body 1, and the outer surface of the first slider 9 is slidably connected to the first slide groove 10.

[0024] The upper surface of the valve cover 6 is fixedly connected with an L-shaped block 11, the interior of the L-shaped block 11 is slidably connected with a sliding rod 12, the left surface of the sliding rod 12 is fixedly connected with an arc plate 13, the left surface of the arc plate 13 is fixedly connected with a latch 14, the left surface of the sliding rod 12 is fixedly connected with a first handle 15, the interior of the L-shaped block 11 is provided with a second slide groove 16, the lower surface of the arc plate 13 is fixedly connected with a second slider 17, the inner surface of the second slide groove 16 is slidably connected with the second slider 17, the left surface of the arc plate 13 is fixedly connected with a spring 18, and the spring 18 is away from the arc plate One end of 13 is fixedly connected to the L-shaped block 11, a limiting hole 19 is arranged inside the valve stem 5, and the number of the limiting holes 19 is multiple and distributed on the left and right. The outer surface of the latch 14 is slidably connected to the limiting hole 19, and a positioning rod 20 is fixedly connected to the upper surface of the valve body 1, and the outer surface of the positioning rod 20 is slidably connected to the valve cover 6. The number of the positioning rods 20 is two and distributed on the left and right. A clamping block 21 is hinged on the upper surface of the L-shaped block 11, and a clamping groove 22 is fixedly connected to the upper surface of the arc plate 13, and the clamping block 21 is engaged with the clamping groove 22. A second handle 23 is fixedly connected to the outer surface of the valve stem 5.

[0025] Working principle: pull the first handle 15 and turn the second handle 23. The rotation of the second handle 23 drives the valve stem 5 to rotate. The rotation of the valve stem 5 drives the valve core 4 to rotate. The flow of the valve body 1 is controlled by the rotation of the valve core 4. When the adjustment is completed, align the limit hole 19 with the latch 14, release the first handle 15, and drive the latch 14 to insert into the limit hole 19 under the action of the spring 18, so as to achieve the effect of preventing the valve stem 5 from rotating.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A diesel engine high temperature water inlet pressure regulating device, characterized in that: include: A valve body (1), wherein the outer surface of the valve body (1) is provided with a water inlet (2), the lower surface of the valve body (1) is provided with a water outlet (3), the interior of the valve body (1) is slidably connected with a valve core (4), the outer surface of the valve core (4) is threadedly connected with a valve stem (5), the outer surface of the valve stem (5) is threadedly connected with a valve cover (6), the lower surface of the valve cover (6) is fixedly connected with a sealing ring (7), the interior of the valve cover (6) is threadedly connected with a threaded rod (8), the outer surface of the valve core (4) is fixedly connected with a first sliding block (9), and the interior of the valve body (1) is provided with a first sliding groove (10); The upper surface of the valve cover (6) is fixedly connected to an L-shaped block (11), the interior of the L-shaped block (11) is slidably connected to a sliding rod (12), the left surface of the sliding rod (12) is fixedly connected to an arc plate (13), the left surface of the arc plate (13) is fixedly connected to a latch (14), the left surface of the sliding rod (12) is fixedly connected to a first handle (15), a second sliding groove (16) is provided inside the L-shaped block (11), a second sliding block (17) is fixedly connected to the lower surface of the arc plate (13), a spring (18) is fixedly connected to the left surface of the arc plate (13), and a limiting hole (19) is provided inside the valve stem (5).

2. A diesel engine high temperature water inlet pressure regulating device according to claim 1, characterized in that: One end of the spring (18) away from the arc-shaped plate (13) is fixedly connected to the L-shaped block (11), and the inner surface of the second sliding groove (16) is slidably connected to the second sliding block (17).

3. A diesel engine high temperature water inlet pressure regulating device according to claim 1, characterized in that: The outer surface of the valve stem (5) is slidably connected to the sealing ring (7), and the outer surface of the sealing ring (7) is slidably connected to the valve body (1).

4. A diesel engine high temperature water inlet pressure regulating device according to claim 1, characterized in that: The limiting holes (19) are multiple in number and distributed left and right, and the outer surface of the latch (14) is slidably connected to the limiting holes (19).

5. A diesel engine high temperature water inlet pressure regulating device according to claim 1, characterized in that: A positioning rod (20) is fixedly connected to the upper surface of the valve body (1), and the outer surface of the positioning rod (20) is slidably connected to the valve cover (6). There are two positioning rods (20) distributed on the left and right.

6. A diesel engine high temperature water inlet pressure regulating device according to claim 1, characterized in that: The outer surface of the threaded rod (8) is threadedly connected to the valve body (1), and the threaded rods (8) are multiple in number and distributed in a circular array.

7. A diesel engine high temperature water inlet pressure regulating device according to claim 1, characterized in that: A clamping block (21) is hingedly connected to the upper surface of the L-shaped block (11), a clamping slot (22) is fixedly connected to the upper surface of the arc-shaped plate (13), and the clamping block (21) is clamped with the clamping slot (22).

8. A diesel engine high temperature water inlet pressure regulating device according to claim 1, characterized in that: The outer surface of the valve stem (5) is fixedly connected to a second handle (23), and the outer surface of the first sliding block (9) is slidably connected to the first sliding groove (10).

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