Special oxygen stop valve with pressure relief function

Abstract

The utility model discloses a special oxygen shut-off valve with a pressure relief function, which comprises a lower valve body, an upper valve body is mounted above the lower valve body, sealing plugs are inserted into the lower valve body and the upper valve body, a pressure relief mechanism is mounted on the outer side of the lower valve body through a connecting mechanism, and an adjusting mechanism is inserted above the pressure relief mechanism in a threaded manner. The connecting thread sleeve is arranged on the surface of the connecting pipe in a threaded and sleeved mode, so that the communicating pipe and the pressure relief pipe can be conveniently installed, when the pressure in the lower valve body is too large, gas can be guided into the pressure relief pipe through the communicating pipe, the sealing block is jacked up through airflow, the gas can be exhausted through the pressure relief hole, pressure in the lower valve body can be relieved, and the pressure relief effect is good. And damage caused by excessive pressure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oxygen shut-off valve technology, and in particular to a special oxygen shut-off valve with pressure relief function. Background Technology

[0002] An oxygen shut-off valve is a valve specifically designed for use in oxygen pipeline systems. Its main function is to quickly cut off the oxygen flow in emergencies to ensure safety. Oxygen shut-off valves typically feature rapid response and reliable shut-off, enabling them to complete the shut-off operation in a short time and prevent accidents from occurring.

[0003] Existing oxygen shut-off valves require pressure to be applied to the valve disc after closure to force the sealing surface to prevent leakage. This increases the internal pressure of the oxygen shut-off valve, which can easily put the pipeline under high pressure and cause deformation and damage to the pipeline. To address this problem, we propose a special oxygen shut-off valve with pressure relief function. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a special oxygen shut-off valve with pressure relief function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An oxygen-specific shut-off valve with pressure relief function includes a lower valve body, an upper valve body mounted above the lower valve body, sealing plugs inserted into the lower and upper valve bodies, a pressure relief mechanism mounted on the outside of the lower valve body via a connecting mechanism, and an adjustment mechanism threaded into the upper part of the pressure relief mechanism.

[0007] Preferably, the connecting mechanism includes a connecting pipe, the outer side of the lower valve body is connected to the connecting pipe, and the outer end of the connecting pipe is threaded with a connecting screw sleeve, the interior of the connecting screw sleeve is connected to one end of the connecting pipe.

[0008] Preferably, the pressure relief mechanism includes a pressure relief pipe, the other end of the connecting pipe is connected to the lower part of the pressure relief pipe, and a ring of pressure relief holes are equally spaced on the surface of the pressure relief pipe. The inner wall of the pressure relief pipe abuts against an adjusting block, and the lower part of the adjusting block is connected to a sealing block through a compression spring.

[0009] Preferably, a first rubber gasket is glued to the inner wall of the bottom end of the pressure relief pipe, and a second rubber gasket is glued to the bottom of the sealing block.

[0010] Preferably, the adjusting mechanism includes a push stud, the push stud is threadedly inserted into the upper part of the pressure relief pipe, and the end of the push stud is connected to the adjusting block through a bearing.

[0011] Preferably, a gripping block is fixedly connected above the push stud, and the cross-section of the gripping block is set as a polygon.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This device is threaded onto the surface of the connecting pipe via a connecting sleeve, which facilitates the installation of the connecting pipe and the pressure relief pipe. When the pressure in the lower valve body is too high, the gas can be guided to the pressure relief pipe through the connecting pipe, and the gas flow will lift the sealing block and discharge it through the pressure relief hole, thereby relieving pressure in the lower valve body and preventing excessive pressure from causing damage.

[0014] 2. The device can enhance the sealing effect by using a first rubber gasket glued to the inner wall of the pressure relief pipe and a second rubber gasket glued to the bottom of the sealing block. At the same time, by rotating the gripping block, the push screw can be easily rotated, which can push the adjusting block to move inside the pressure relief pipe, thereby adjusting the compression length of the compression spring and facilitating control of the discharge pressure. In addition, the gripping block is polygonal, which facilitates its rotation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of an oxygen-specific shut-off valve with pressure relief function proposed in this utility model;

[0016] Figure 2 A three-dimensional bottom view of an oxygen-specific shut-off valve with pressure relief function proposed in this utility model;

[0017] Figure 3 for Figure 1 A schematic diagram of the three-dimensional separation of the connecting pipe and the communicating pipe structure;

[0018] Figure 4 for Figure 1 A three-dimensional cross-sectional diagram of the connecting pipe and pressure relief pipe structure.

[0019] In the diagram: 1. Lower valve body; 2. Upper valve body; 3. Sealing plug;

[0020] 4. Connecting mechanism; 41. Connecting pipe; 42. Connecting screw sleeve; 43. Connecting pipe;

[0021] 5. Pressure relief mechanism; 51. Pressure relief pipe; 52. Pressure relief hole; 53. First rubber gasket; 54. Adjusting block; 55. Compression spring; 56. Sealing block; 57. Second rubber gasket;

[0022] 6. Adjustment mechanism; 61. Push stud; 62. Grip block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 An oxygen-specific shut-off valve with pressure relief function includes a lower valve body 1, an upper valve body 2 installed above the lower valve body 1, a sealing plug 3 inserted inside the lower valve body 1 and the upper valve body 2, and a pressure relief mechanism 5 installed on the outside of the lower valve body 1 through a connecting mechanism 4. The connecting mechanism 4 facilitates the installation of the pressure relief mechanism 5 as a whole, and an adjustment mechanism 6 is threadedly inserted above the pressure relief mechanism 5.

[0025] Furthermore, refer to Figure 2 and Figure 4 It can be seen that the connecting mechanism 4 includes a connecting pipe 41. The outer side of the lower valve body 1 is connected to the connecting pipe 41, and the outer end of the connecting pipe 41 is threaded with a connecting sleeve 42. The inside of the connecting sleeve 42 is connected to one end of the connecting pipe 43. By connecting the connecting sleeve 42 and the connecting pipe 41 through the threaded connection, the functions of the connecting pipe 41 and the connecting pipe 43 can be conveniently connected.

[0026] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the pressure relief mechanism 5 includes a pressure relief pipe 51, and the other end of the connecting pipe 43 is connected to the lower part of the pressure relief pipe 51. A ring of pressure relief holes 52 is opened at equal intervals on the surface of the pressure relief pipe 51. The pressure relief holes 52 opened at equal intervals on the surface of the pressure relief pipe 51 can facilitate the venting function. The inner wall of the pressure relief pipe 51 abuts against the adjusting block 54, and the lower part of the adjusting block 54 is connected to the sealing block 56 through the compression spring 55. The sealing block 56 can be easily pushed by the elastic force of the compression spring 55, which can play the role of pressure relief.

[0027] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the bottom inner wall of the pressure relief pipe 51 is glued with a first rubber gasket 53, and the bottom of the sealing block 56 is glued with a second rubber gasket 57. The contact between the surface of the first rubber gasket 53 and the surface of the second rubber gasket 57 can increase the sealing performance of the pressure relief pipe 51.

[0028] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the adjustment mechanism 6 includes a push stud 61. The push stud 61 is threaded into the upper part of the pressure relief pipe 51, and the end of the push stud 61 is connected to the adjustment block 54 through a bearing. By rotating the push stud 61, the adjustment block 54 can be easily pushed to move along the inside of the pressure relief pipe 51, which facilitates the adjustment of the pressure of the compression spring 55.

[0029] Furthermore, refer to Figure 3 and Figure 4 It can be seen that a gripping block 62 is fixedly connected above the push stud 61, and the cross-section of the gripping block 62 is set as a polygon. The gripping block 62 can easily drive the push stud 61 to rotate, which facilitates the function of the adjusting block 54. The gripping block 62 is set as a polygon, which makes it easy to grip.

[0030] Working principle: When this utility model is in use, if the valve body 1 is depressurizing, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 Guided by the connecting pipe 41 and the connecting pipe 43, gas can enter the pressure relief pipe 51 and push the sealing block 56, which can move along the pressure relief pipe 51. This will compress the compression spring 55. When the gas pressure pushes the sealing block 56 to rise above the pressure relief hole 52, the gas can be discharged through multiple sets of pressure relief holes 52. After the pressure relief in the lower valve body 1 is completed, the compression spring 55 resets, which can cause the sealing block 56 to drive the second rubber pad 57 to contact the surface of the first rubber pad 53. At the same time, when the gripping block 62 is rotated, the push stud 61 can move along the pressure relief pipe 51, which facilitates the action of the adjusting block 54 and the action of the compression spring 55, and can adjust the pressure relief of the lower valve body 1.

[0031] The above is the complete working principle of this utility model.

[0032] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0033] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0034] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An oxygen dedicated shutoff valve having a pressure relief function, comprising a lower valve body (1), characterized in that, The upper valve body (2) is installed above the lower valve body (1), the sealing plug (3) is inserted in the lower valve body (1) and the upper valve body (2), the pressure relief mechanism (5) is installed on the outer side of the lower valve body (1) through the connecting mechanism (4), and the adjusting mechanism (6) is threaded and inserted above the pressure relief mechanism (5).

2. The oxygen-specific shutoff valve with pressure relief function according to claim 1, characterized in that The connecting mechanism (4) comprises a connecting pipe (41), the connecting pipe (41) is communicated with the outer side of the lower valve body (1), a connecting screw sleeve (42) is threaded and sleeved on the outer end of the connecting pipe (41), and the inner part of the connecting screw sleeve (42) is in communication with one end of the communicating pipe (43).

3. The oxygen-specific shutoff valve with pressure relief function according to claim 2, characterized in that The pressure relief mechanism (5) comprises a pressure relief pipe (51), the other end of the communicating pipe (43) is communicated with the lower part of the pressure relief pipe (51), a circle of pressure relief holes (52) are equidistantly arranged on the surface of the pressure relief pipe (51), the inner wall of the pressure relief pipe (51) is in contact with the adjusting block (54), and the lower part of the adjusting block (54) is connected with the sealing block (56) through the extrusion spring (55).

4. The oxygen-specific shutoff valve with pressure relief function according to claim 3, characterized in that The bottom end inner wall of the pressure relief pipe (51) is glued with the first rubber pad (53), and the lower part of the sealing block (56) is glued with the second rubber pad (57).

5. The oxygen-specific shutoff valve with pressure relief function according to claim 3, characterized in that The adjusting mechanism (6) comprises a push stud (61), the push stud (61) is threaded and inserted above the pressure relief pipe (51), and the end of the push stud (61) is connected with the adjusting block (54) through a bearing.

6. The oxygen-specific shutoff valve with pressure relief function according to claim 5, characterized in that The upper part of the push stud (61) is fixedly connected with the gripping block (62), and the cross section of the gripping block (62) is polygonal.

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