Exhaust valve with adjustable opening pressure

Abstract

The utility model discloses an opening pressure adjustable exhaust valve which comprises a valve body, a rotating frame is rotatably connected to the lower end of the valve body, an adjusting coil is fixedly connected to the inner wall of the rotating frame, a one-way valve seat is slidably connected to the inner side of the valve body, a screw is connected to the inner side of the one-way valve seat in a threaded mode, and a valve disc is arranged at the lower end of the one-way valve seat. And the lower end of the valve disc is fixedly connected with an internal spring. By means of the structure, the adjusting nut is rotated to drive the adjusting coil to move up and down, then the internal spring is compressed, the compression pressure of the spring can be adjusted and changed, the compression pressure of the spring is adjusted in advance, when the internal pressure is larger than the pressure of the spring, the valve disc is automatically opened to achieve exhaust of the exhaust valve, and the problems that internal gas is not exhausted in time, and the exhaust effect is poor are solved. Therefore, a diver can use the circulating diving breathing apparatus more conveniently in the process of using the circulating diving breathing apparatus.

Description

TECHNICAL FIELD

[0001] The utility model relates to diving equipment technical field, especially opening pressure adjustable exhaust valve of a kind of. BACKGROUND

[0002] With the development of diving technology, the circulation diving respirator gradually plays more and more important role in diving field, in the circulation diving respirator, the breathing bag exhaust valve as an important component, needs to be adjusted to its opening pressure, so set up a kind of opening pressure adjustable exhaust valve.

[0003] The existing breathing bag exhaust valve is a single switch function gas valve, which needs to be opened and closed by a person to realize gas discharge. The gas discharge is not timely, and the valve opening and closing time is difficult to control, which affects the life safety of divers in actual diving. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an opening pressure adjustable exhaust valve, which automatically opens the valve disc to realize exhaust valve exhaust when the internal pressure is greater than the spring pressure by pre-adjusting the spring pressure, solves the problem of not timely internal gas discharge and difficult valve opening and closing time control, thereby making it more convenient for divers to use the circulation diving respirator.

[0005] To achieve the above purpose, an opening pressure adjustable exhaust valve is provided, which comprises a valve body, a rotating frame is rotatably connected to the lower end of the valve body, an adjusting nut is fixedly connected to the inner wall of the rotating frame, a one-way valve seat is slidably connected to the inner side of the valve body, a screw is threadedly connected to the inner side of the one-way valve seat, a valve disc is arranged at the lower end of the one-way valve seat, and an internal spring is fixedly connected to the lower end of the valve disc.

[0006] According to the opening pressure adjustable exhaust valve, the outer wall of the rotating frame is fixedly connected with an adjusting nut.

[0007] According to the opening pressure adjustable exhaust valve, a rotating thread is arranged on the inner wall of the valve body.

[0008] According to the opening pressure adjustable exhaust valve, a sliding frame is slidably connected to the outer side of the one-way valve seat, and the sliding frame is fixedly connected to the upper end of the valve body.

[0009] According to the opening pressure adjustable exhaust valve, a locking frame is threadedly connected to the outer side of the screw.

[0010] According to the opening pressure adjustable exhaust valve, a fixed plate is fixedly connected to the upper end of the valve disc, a one-way valve piece is fixedly connected to the upper end of the fixed plate, a top groove is arranged on the fixed plate, and the top groove and the screw are correspondingly arranged.

[0011] According to the adjustable exhaust valve of opening pressure, the lower end of the internal spring is fixedly connected with a fixed block.

[0012] According to the adjustable exhaust valve of opening pressure, the lower end of the adjusting ring is attached with a downward block, and the downward block is fixedly connected to one side of the valve disc.

[0013] Beneficial effects:

[0014] By the method, the adjusting ring is driven to move up and down by rotating the adjusting nut, so as to compress the internal spring, the pressure of the spring can be adjusted, the pressure of the spring is adjusted in advance, when the internal pressure is greater than the pressure of the spring, the valve disc is automatically opened to realize exhaust of the exhaust valve, the problems that the internal gas is not discharged in time and the time of opening and closing the valve is not easy to control are solved, so that the diver can use the circulating diving breathing apparatus more conveniently.

[0015] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained in connection with the drawings and embodiments;

[0017] Figure 1 A perspective view of the adjustable exhaust valve of opening pressure is provided for the utility model;

[0018] Figure 2 A structure schematic view between the adjusting nut and the valve disc of the adjustable exhaust valve of opening pressure is provided for the utility model;

[0019] Figure 3 A structure schematic view of the internal wall of the valve body of the adjustable exhaust valve of opening pressure is provided for the utility model;

[0020] Figure 4 A structure schematic view of the screw of the adjustable exhaust valve of opening pressure is provided for the utility model;

[0021] Figure 5 A sectional view of the adjustable exhaust valve of opening pressure is provided for the utility model.

[0022] Legend:

[0023] 1, valve body; 101, sliding frame; 102, rotating thread; 2, adjusting nut; 201, rotating frame; 3, adjusting ring; 4, one-way valve seat; 5, internal spring; 501, fixed block; 6, valve disc; 601, downward block; 7, one-way valve piece; 701, fixed plate; 702, top groove; 8, screw; 801, locking frame. DETAILED DESCRIPTION

[0024] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0025] Referring to Figures 1-5 The utility model discloses an open pressure adjustable exhaust valve, it includes valve body 1, the lower end of valve body 1 is rotatably connected with rotating frame 201, the inner wall of rotating frame 201 is fixedly connected with adjusting nut 3, the inboard of one way valve seat 4 is slidably connected with valve body 1, the inboard of one way valve seat 4 is threadedly connected with screw 8, and one way valve seat 4 lower end is provided with valve disc 6, and valve disc 6 lower end is fixedly connected with internal spring 5.

[0026] Specifically: by rotating adjusting nut 2 drive adjusting nut 3 moves up and down, and then the internal spring 5 is compressed, the pressure of internal spring 5 can be adjusted, by adjusting the pressure of internal spring 5 in advance, when the internal pressure is greater than the pressure of internal spring 5, valve disc 6 is automatically opened to realize the exhaust of exhaust valve.

[0027] Rotating frame 201 outer wall is fixedly connected with adjusting nut 2.

[0028] Specifically: adjusting nut 2 is fixed in rotating frame 201, and adjusting nut 2 is rotated through rotating frame 201 and cooperates with rotating thread 102, so that adjusting nut 2 can move down.

[0029] Valve body 1 inner wall is provided with rotating thread 102.

[0030] Specifically: rotating thread 102 is arranged on the inner wall of valve body 1, and rotating thread 102 is arranged on the inner wall of valve body 1, and rotating thread 102 is arranged on the inner wall of valve body 1.

[0031] One way valve seat 4 outer side is slidably connected with sliding frame 101, and sliding frame 101 is fixedly connected to the upper end of valve body 1.

[0032] Specifically: sliding frame 101 is fixed on valve body 1 and is used to bear the sliding of one way valve seat 4.

[0033] The outer side of screw 8 is threadedly connected with locking frame 801.

[0034] Specifically: locking frame 801 is installed on the side wall of sliding frame 101, and locking frame 801 is used to fixedly install screw 8.

[0035] The upper end of the valve disc 6 is fixedly connected with a fixed plate 701, the upper end of the fixed plate 701 is fixedly connected with a one-way valve piece 7, the fixed plate 701 is provided with a top groove 702, and the top groove 702 and a screw 8 are correspondingly arranged.

[0036] Specifically, the one-way valve piece 7 can push the valve disc 6 to move downwards, the screw 8 is locked through the locking frame 801 on one side of the sliding frame 101, the screw 8 is rotated and moved downwards, the one-way valve seat 4 is moved downwards, the screw 8 is locked, can be clamped on the top groove 702 at a specified position, and the screw 8 can be installed at different distances.

[0037] The lower end of the internal spring 5 is fixedly connected with a fixed block 501.

[0038] Specifically, the fixed block 501 is used for mounting the internal spring 5, and the fixed block 501 and the inner bottom of the rotating frame 201 are mutually attached.

[0039] The lower end of the adjusting nut 3 is attached with a downward moving block 601, and the downward moving block 601 is fixedly connected to one side of the valve disc 6.

[0040] Specifically, the rotating frame 201 is rotated, the adjusting nut 2 is driven to rotate, the adjusting nut 2 is moved downwards, so that the adjusting nut 2 can drive the adjusting nut 3 to move downwards, the adjusting nut 3 is moved downwards to drive the downward moving block 601 to move downwards, and the downward moving block 601 is moved downwards to drive the valve disc 6 to move downwards.

[0041] Working principle: the device is rotated by rotating the adjusting nut 2, the T-shaped thread in the adjusting nut 2 is matched with the T-shaped thread outside the adjusting nut 3 to drive, the adjusting nut 3 is moved up and down, the valve disc 6 is moved up and down to compress the internal spring 5 and change the pressure of the internal spring 5, so that the opening pressure of the valve disc 6 is preset according to actual requirements by rotating the adjusting nut 2. Further, when the internal gas pressure of the breathing bag is greater than the preset pressure value of the internal spring 5 on the upper part of the valve disc 6, the valve disc 6 is opened upwards, the one-way valve piece 7 is opened, the internal gas of the breathing bag is discharged through the exhaust valve, the opening pressure adjustable exhaust function is realized, the problems that the internal gas is not discharged in time and the valve opening and closing time is not easy to control are solved, so that the diver can use the circulating diving breathing apparatus more conveniently.

[0042] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An opening pressure adjustable exhaust valve comprising a valve body (1), characterized in that: The valve body (1) lower end rotationally connected with rotating frame (201), the rotating frame (201) inner wall fixedly connected with adjusting nut (2), the valve body (1) inner side slidingly connected with one-way valve seat (4), the one-way valve seat (4) inner side threadedly connected with screw (8), the one-way valve seat (4) lower end is provided with valve disc (6), the valve disc (6) lower end fixedly connected with internal spring (5).

2. An opening pressure adjustable exhaust valve according to claim 1, wherein The rotating frame (201) outer wall fixedly connected with adjusting nut (2).

3. The opening pressure adjustable exhaust valve according to claim 1, wherein The valve body (1) inner wall is provided with rotating thread (102).

4. The opening pressure adjustable exhaust valve according to claim 1, wherein The one-way valve seat (4) outer side slidingly connected with sliding frame (101), the sliding frame (101) is fixedly connected on the upper end of valve body (1).

5. The opening pressure adjustable exhaust valve according to claim 1, wherein The screw (8) outer side threadedly connected with locking frame (801).

6. The opening pressure adjustable exhaust valve according to claim 1, wherein The valve disc (6) upper end fixedly connected with fixed plate (701), the fixed plate (701) upper end fixedly connected with one-way valve piece (7), the fixed plate (701) is provided with top groove (702), the top groove (702) and screw (8) are correspondingly provided.

7. The opening pressure adjustable exhaust valve according to claim 1, wherein The internal spring (5) lower end fixedly connected with fixed block (501).

8. The opening pressure adjustable exhaust valve according to claim 1, wherein The adjusting nut (3) lower end is provided with a lower block (601) that fits, the lower block (601) is fixedly connected to one side of the valve disc (6).

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