High-pressure safety valve

Abstract

The utility model relates to the technical field of high-pressure safety valves, in particular to a high-pressure safety valve, which comprises a valve body and a cavity, the cavity is processed on the inner wall of the valve body, the inner wall of the valve body is fixedly connected with a connecting seat, the inner wall of the connecting seat is in threaded connection with a pressing block, the lower end of the pressing block is fixedly connected with a pressing rod, and the pressing rod is fixedly connected with the valve body. The pressing rod is connected with an adjusting mechanism. The connecting pipe and the output pipe are placed in the connecting ring, the outer wall of the connecting pipe and the outer wall of the output pipe are attached to the interior of the connecting ring, the threaded ring is screwed into the outer wall of the connecting ring, the threaded ring limits the positions of the connecting pipe and the output pipe, and the position of the connecting pipe is limited between the threaded ring and the connecting ring; and the pipeline connection is firmer, and the risk of separation is not easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure safety valves, in particular to a high-pressure safety valve. Background Art

[0002] A high-pressure safety valve is a safety protection valve. Its opening and closing parts are in a normally closed state under the action of external forces. When the medium pressure in the equipment or pipeline increases and exceeds the specified value, it automatically opens and prevents the medium pressure in the pipeline or equipment from exceeding the specified value by discharging the medium outside the system.

[0003] For example, a high-pressure safety valve with the authorization announcement number "CN220727222U" solves the problem of the existing high-pressure safety valve causing strong impact on the valve wall, which will reduce the life of the safety valve for a long time. The above-mentioned method compresses the top spring downward and rotates the pressure block by hand to connect the first thread on the pressure block and the second thread on the top cover, so that the pressure rod is pressed against the valve core to seal the pressure relief hole. When the safety valve is used, the pressure block is unscrewed to ensure the sealing of the safety valve when it is not in use. Considering that the surface of the existing outlet connecting pipe is in a smooth state, it is connected facing the external pipe, resulting in an installation method that cannot ensure that the pipeline connection is firm, and there is a risk of detachment. Utility Model Content

[0004] The utility model aims to solve the problem that the existing high-pressure safety valve cannot ensure the firm installation mode of the pipeline connection and is prone to the danger of separation, and thus proposes a high-pressure safety valve.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a high-pressure safety valve, comprising a valve body and a cavity, the inner wall of the valve body being processed with a cavity, the inner wall of the valve body being fixedly connected to a connecting seat, the inner wall of the connecting seat being threadedly connected to a pressure block, the lower end of the pressure block being fixedly connected to a pressure rod, and the pressure rod being connected to an adjusting mechanism.

[0006] Preferably, the adjusting mechanism includes a round block, the outer wall of the round block is slidably connected to the pressure rod, the end of the round block is fixedly connected to the round rod, the end of the round rod is fixedly connected to the valve core, the outer wall of the round rod is fixedly connected to the fixing frame, and the lower end of the fixing frame is fixedly connected to the straight rod.

[0007] Preferably, the outer wall of the fixing bracket is fixedly connected to the spring, and the outer wall of the valve body is connected to a fixing mechanism.

[0008] Preferably, the fixing mechanism includes a connecting ring, the outer wall of the connecting ring is fixedly connected to the valve body, the outer wall of the connecting ring is threadedly connected to the threaded ring, the inner wall of the connecting ring is fixedly connected to the limiting ring, and the outer wall of the limiting ring is tightly pressed against the connecting pipe.

[0009] Preferably, the end of the spring is fixedly connected to the slider, the outer wall of the slider is fixedly connected to the valve core, and the inner wall of the cavity is fixedly connected to the valve seat.

[0010] Preferably, the outer wall of the connecting pipe is fixedly connected to the output pipe.

[0011] The high-pressure safety valve proposed by the utility model has the beneficial effect of placing the connecting pipe and the output pipe into the interior of the connecting ring so that the outer walls of the connecting pipe and the output pipe fit into the interior of the connecting ring, and screwing the threaded ring into the outer wall of the connecting ring so that the threaded ring restricts the position of the connecting pipe and the output pipe, thereby realizing the position restriction of the connecting pipe between the threaded ring and the connecting ring, ensuring that the pipeline connection is more secure and will not easily be in danger of separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure in the center front view;

[0014] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure from top view;

[0015] Figure 4 for Figure 2 A in the middle is an enlarged structural diagram;

[0016] Figure 5 for Figure 2 The enlarged structural diagram at B in the middle;

[0017] Figure 6 for Figure 2 Schematic diagram of the enlarged structure of the fixing mechanism.

[0018] In the figure: 1. valve body, 2. cavity, 3. connecting seat, 4. pressure block, 5. pressure rod, 6. adjusting mechanism, 601. round block, 602. round rod, 603. valve core, 604. fixing frame, 605. straight rod, 7. spring, 8. fixing mechanism, 801. connecting ring, 802. threaded ring, 803. limiting ring, 804. connecting pipe, 9. slider, 10. valve seat, 11. output pipe. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Example 1:

[0021] See also Figure 1-5: In this embodiment, a high-pressure safety valve includes a valve body 1 and a cavity 2. The inner wall of the valve body 1 is processed with the cavity 2. The inner wall of the valve body 1 is fixedly connected to the connecting seat 3. The inner wall of the connecting seat 3 is threadedly connected to the pressure block 4. The lower end of the pressure block 4 is fixedly connected to the pressure rod 5. The pressure rod 5 is connected to the adjustment mechanism 6.

[0022] The adjusting mechanism 6 includes a round block 601, which drives the pressure rod 5 to move downward through the pressure block 4, so that the round block 601 and the round rod 602 inside the pressure rod 5 slide inside, so as to adjust the distance of the movement of the valve core 603 at the end of the round rod 602 restricted by the pressure rod 5. The outer wall of the round block 601 is slidably connected to the pressure rod 5, the end of the round block 601 is fixedly connected to the round rod 602, the end of the round rod 602 is fixedly connected to the valve core 603, the outer wall of the round rod 602 is fixedly connected to the fixing frame 604, and the lower end of the fixing frame 604 is fixedly connected to the straight rod 605.

[0023] The outer wall of the fixing frame 604 is fixedly connected to the spring 7, and the outer wall of the valve body 1 is connected to the fixing mechanism 8, which includes a connecting ring 801. The connecting pipe 804 and the output pipe 11 are placed inside the connecting ring 801 to achieve the fixing of the position of the connecting pipe 804 on the connecting ring 801 by the limiting ring 803. The interior of the connecting ring 801 needs to be padded with a sealing gasket to ensure that the outer wall of the connecting pipe 804 fits tightly with the outer wall of the connecting ring 801. The outer wall of the connecting ring 801 is fixedly connected to the valve body 1. The outer wall of the connecting ring 801 is threadedly connected to the threaded ring 802. The inner wall of the connecting ring 801 is fixedly connected to the limiting ring 803. The interior of the limiting ring 803 needs to be padded with a sealing gasket to ensure that the outer wall of the connecting pipe 804 fits tightly with the outer wall of the limiting ring 803. The outer wall of the limiting ring 803 is tightly against the connecting pipe 804.

[0024] Place the connecting pipe 804 and the output pipe 11 into the interior of the connecting ring 801, so that the outer walls of the connecting pipe 804 and the output pipe 11 fit into the interior of the connecting ring 801, screw the threaded ring 802 into the outer wall of the connecting ring 801, so that the threaded ring 802 limits the position of the connecting pipe 804 and the output pipe 11, and realizes the position restriction of the connecting pipe 804 between the threaded ring 802 and the connecting ring 801, ensuring that the pipeline connection is more secure and will not be easily separated.

[0025] Working principle:

[0026] Installation phase

[0027] The lower end of the valve body 1 is fixedly connected to the external equipment by means of threads or welding, and the connecting pipe 804 and the output pipe 11 are placed inside the connecting ring 801, so that the outer walls of the connecting pipe 804 and the output pipe 11 fit inside the connecting ring 801, and the outer wall of the limiting ring 803 is pressed against the connecting pipe 804, and the threaded ring 802 is screwed into the outer wall of the connecting ring 801, so that the threaded ring 802 limits the position of the connecting pipe 804 and the output pipe 11, so that the threaded ring 802 and the connecting ring 801 are in a horizontal threaded connection, thereby realizing the sealing between the threaded ring 802 and the connecting ring 801, and realizing the sealing installation of the connecting pipe 804 and the output pipe 11 on the valve body 1.

[0028] Use phase

[0029] When the pressure block 4 is turned forward and rotated on the threaded seat 3, the pressure block 4 will drive the pressure rod 5 to move downward, causing the round block 601 and the round rod 602 inside the pressure rod 5 to slide inside until the pressure rod 5 squeezes the valve core 603 to move downward, and the valve core 603 enters the interior of the valve seat 10, so that the lower end of the cavity 2 inside the valve body 1 is sealed and closed. When the pressure block 4 is turned backward and rotated on the threaded seat 3, the spring 7 will squeeze the valve seat 10 on the slider 9 into the interior of the valve body 1, facing the external gas, etc. Entering the internal cavity 2 from the lower end of the valve body 1, the gas squeezes the valve core 603 on the valve seat 10 to disengage, and the spring 7 is squeezed and deformed by the slider 9, so that the gas flows from the valve seat 10 through the fixing frame 604, and the gas enters the connecting pipe 804 and the output pipe 11 from the cavity 2 to be discharged to the outside, realizing the overall closing and the spring 7 deformation control valve core 603 to disengage from the valve seat 10 and automatically release the pressure, which can achieve two usage effects.

[0030] Example 2:

[0031] See also Figure 1-5 : In this embodiment, the end of the spring 7 is fixedly connected to the slider 9, the outer wall of the slider 9 is fixedly connected to the valve core 603, the inner wall of the cavity 2 is fixedly connected to the valve seat 10, and the outer wall of the connecting pipe 804 is fixedly connected to the output pipe 11.

[0032] Working principle:

[0033] Place the connecting pipe 804 and the output pipe 11 into the interior of the connecting ring 801 so that the outer walls of the connecting pipe 804 and the output pipe 11 fit inside the connecting ring 801, and screw the threaded ring 802 into the outer wall of the connecting ring 801 to achieve the function of limiting the position of the connecting pipe 804 and the output pipe 11 by the threaded ring 802.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure safety valve, comprising a valve body (1) and a cavity (2), wherein the cavity (2) is machined on the inner wall of the valve body (1), and characterized in that: The inner wall of the valve body (1) is fixedly connected to the connecting seat (3), the inner wall of the connecting seat (3) is threadedly connected to the pressure block (4), the lower end of the pressure block (4) is fixedly connected to the pressure rod (5), and the pressure rod (5) is connected to the adjustment mechanism (6).

2. A high-pressure safety valve according to claim 1, characterized in that: The regulating mechanism (6) comprises a round block (601), the outer wall of the round block (601) is slidably connected to the pressure rod (5), the end of the round block (601) is fixedly connected to the round rod (602), the end of the round rod (602) is fixedly connected to the valve core (603), the outer wall of the round rod (602) is fixedly connected to the fixing frame (604), and the lower end of the fixing frame (604) is fixedly connected to the straight rod (605).

3. A high-pressure safety valve according to claim 2, characterized in that: The outer wall of the fixing frame (604) is fixedly connected to the spring (7), and the outer wall of the valve body (1) is connected to a fixing mechanism (8).

4. A high-pressure safety valve according to claim 3, characterized in that: The fixing mechanism (8) comprises a connecting ring (801), the outer wall of the connecting ring (801) is fixedly connected to the valve body (1), the outer wall of the connecting ring (801) is threadedly connected to the threaded ring (802), the inner wall of the connecting ring (801) is fixedly connected to the limiting ring (803), and the outer wall of the limiting ring (803) is tightly pressed against the connecting pipe (804).

5. A high-pressure safety valve according to claim 3, characterized in that: The end of the spring (7) is fixedly connected to the slider (9), the outer wall of the slider (9) is fixedly connected to the valve core (603), and the inner wall of the cavity (2) is fixedly connected to the valve seat (10).

6. A high-pressure safety valve according to claim 4, characterized in that: The outer wall of the connecting pipe (804) is fixedly connected to the output pipe (11).

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