Adjustable quantitative oxygen supply valve

Abstract

An adjustable quantitative oxygen supply valve is provided with a valve body shell, a sealing valve rod, a diaphragm fixing cap, a limiting rod, a fixing tailstock, a sealing ring, a ventilation diaphragm, a ball bead, an airflow channel, a left oxygen supply hole, a right oxygen supply hole and a spring. One end of the valve body shell is provided with an airflow channel, two sides of the middle are respectively provided with a diaphragm fixing cap, and the other end is connected with a fixed tailstock. And a sealing valve rod is arranged in the valve body shell. Sealing rings are arranged at the end, close to the airflow channel, of the sealing valve rod and the end, close to the fixed tailstock, of the sealing valve rod. Limiting rods are further arranged between the sealing rings and the fixed tailstock. The spring and the ball are clamped in the middle of the airflow channel, one side of the spring abuts against the airflow channel, and the other side of the spring makes contact with the ball. The ball abuts against the inner wall of the valve body shell in the moving state, and the ball abuts against the right oxygen supply hole in the static sitting state. According to the self-rescuer, states can be switched according to use scenes, and the flow of the oxygen supply hole is manually adjusted, so that the self-rescuer has different effects in different environments.

Description

Technical Field

[0001] The utility model relates to an adjustable quantitative oxygen supply valve, belonging to the technical field of self-rescuers. Background Art

[0002] Self-rescuers are essential safety protection devices for underground workers. The types of self-rescuers equipped in coal mines in China include filtering self-rescuers, isolated chemical oxygen self-rescuers, and isolated compressed oxygen self-rescuers. The isolated compressed oxygen self-rescuer is a reusable self-rescue and escape instrument with high-pressure compressed oxygen as the oxygen source. When in use, the steel cylinder switch is unscrewed, and oxygen flows out through the quantitative hole of the pressure reducing valve for people to inhale oxygen.

[0003] Currently, the existing isolated compressed oxygen self-rescuers on the market generally have a single use state, with only a constant flow of oxygen for people to breathe, which cannot meet the state switching of personnel during high-intensity or sedentary work, and there are great limitations in terms of use functionality. Content of the Utility Model

[0004] Therefore, the utility model provides an adjustable quantitative oxygen supply valve to solve the problems of single use state and inability to meet various use environments in traditional technologies.

[0005] In order to achieve the above purpose, the utility model provides the following technical solution: an adjustable quantitative oxygen supply valve, comprising a valve body housing, a sealing valve rod, a left diaphragm fixing cap, a right diaphragm fixing cap, a fixed tail seat, a ball bead, an air flow channel, a left oxygen supply hole, a right oxygen supply hole, and a spring;

[0006] The left diaphragm fixing cap is provided on one side of the valve body housing, and the left oxygen supply hole is provided on the left diaphragm fixing cap; the right diaphragm fixing cap is provided on the other side of the valve body housing, and the right oxygen supply hole is provided on the right diaphragm fixing cap;

[0007] One end of the valve body housing is provided with an oxygen inlet, and the other end of the valve body housing is connected to the fixed tail seat;

[0008] The sealing valve rod is arranged inside the valve body housing, and one end of the sealing valve rod extends out of the fixed tail seat;

[0009] An air flow channel is arranged inside the sealing valve rod, and one end of the air flow channel is communicated with the oxygen inlet; an air flow branch channel is arranged at a position corresponding to the left oxygen supply hole or the right oxygen supply hole of the air flow channel;

[0010] The ball bead is located inside the air flow branch channel, one end of the spring is inside the air flow branch channel, the other end of the spring is inside the air flow channel, and the ball bead contacts the spring.

[0011] As a preferred embodiment of the adjustable quantitative oxygen supply valve, it further includes a left ventilation diaphragm and a right ventilation diaphragm. The left ventilation diaphragm is arranged inside the left oxygen supply hole; the right ventilation diaphragm is arranged inside the right oxygen supply hole.

[0012] As a preferred embodiment of the adjustable quantitative oxygen supply valve, it further includes a first sealing ring and a second sealing ring. Both the first sealing ring and the second sealing ring are arranged between the inner wall of the valve body housing and the sealing valve stem;

[0013] The first sealing ring is located on one side of the air flow branch channel, and the second sealing ring is located on the other side of the air flow branch channel; an air flow cavity is formed between the first sealing ring and the second sealing ring, and the air flow branch channel conducts the air flow cavity.

[0014] As a preferred embodiment of the adjustable quantitative oxygen supply valve, the ball is pushed into the left oxygen supply hole by the spring to close the left oxygen supply hole.

[0015] As a preferred embodiment of the adjustable quantitative oxygen supply valve, the ball is pushed into the right oxygen supply hole by the spring to close the right oxygen supply hole.

[0016] As a preferred embodiment of the adjustable quantitative oxygen supply valve, a torsion ring is connected to the end of the sealing valve stem, and the sealing valve stem is rotated through the torsion ring to switch the closing object of the ball.

[0017] As a preferred embodiment of the adjustable quantitative oxygen supply valve, it further includes a limiting rod, and the limiting rod is inserted into the sealing valve stem from the valve body housing.

[0018] The utility model has the following advantages: It is provided with a valve body housing, a sealing valve stem, a diaphragm fixing cap, a limiting rod, a fixed tail seat, a sealing ring, a ventilation diaphragm, a ball, an air flow channel, a left oxygen supply hole, a right oxygen supply hole, and a spring. One end of the valve body housing is provided with an air flow channel, and diaphragm fixing caps are respectively arranged on both sides in the middle, and the other end is connected to the fixed tail seat. A sealing valve stem is arranged inside the valve body housing. Sealing rings are arranged at both the end of the sealing valve stem close to the air flow channel and the end close to the fixed tail seat. A limiting rod is also arranged between the sealing ring and the fixed tail seat. The air flow channel sandwiches the spring and the ball in the middle. One side of the spring abuts against the air flow channel, and the other side contacts the ball. In the moving state, the ball abuts against the inner wall of the valve body housing, and in the sitting state, the ball abuts against the right oxygen supply hole. The utility model can switch the state according to the use scenario and manually adjust the flow rate of the oxygen supply hole, so that the self-rescuer produces different effects in different environments. Description of the Drawings

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are merely exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be derived based on the provided drawings.

[0020] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substantial significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0021] Figure 1 It is a schematic diagram of the static state of the adjustable quantitative oxygen supply valve provided in the embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the moving state of the adjustable quantitative oxygen supply valve provided in the embodiment of the present invention.

[0023] In the figure, 1 is the valve body housing; 2 is the sealing valve stem; 31 is the left diaphragm fixing cap; 32 is the right diaphragm fixing cap; 4 is the limiting rod; 5 is the fixed tail seat; 61 is the first sealing ring; 62 is the second sealing ring; 71 is the left ventilation diaphragm; 72 is the right ventilation diaphragm; 8 is the ball bead; 9 is the air flow channel; 10 is the left oxygen supply hole; 11 is the right oxygen supply hole; 12 is the spring; 13 is the oxygen inlet; 14 is the air flow branch; 15 is the air flow cavity; 16 is the torsion ring. Specific Embodiments

[0024] The following specific embodiments illustrate the implementation manners of the present invention. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0025] See Figure 1 and Figure 2 The embodiment of the present invention provides an adjustable quantitative oxygen supply valve, including a valve body housing 1, a sealing valve stem 2, a left diaphragm fixing cap 31, a right diaphragm fixing cap 32, a fixed tail seat 5, a ball bead 8, an air flow channel 9, a left oxygen supply hole 10, a right oxygen supply hole 11, and a spring 12;

[0026] On one side of the valve body housing 1, there is provided the left diaphragm fixing cap 31, and the left oxygen supply hole 10 is provided on the left diaphragm fixing cap 31; on the other side of the valve body housing 1, there is provided the right diaphragm fixing cap 32, and the right oxygen supply hole 11 is provided on the right diaphragm fixing cap 32;

[0027] One end of the valve body housing 1 is provided with an oxygen inlet 13, and the other end of the valve body housing 1 is connected to the fixed tail seat 5;

[0028] The sealing valve stem 2 is arranged inside the valve body housing 1, and one end of the sealing valve stem 2 extends out from the fixed tail seat 5;

[0029] An air flow channel 9 is provided inside the sealing valve stem 2, and one end of the air flow channel 9 communicates with the oxygen inlet 13; an air flow branch channel 14 is provided at a position of the air flow channel 9 corresponding to the left oxygen supply hole 10 or the right oxygen supply hole 11;

[0030] The ball bead 8 is located inside the air flow branch channel 14, one end of the spring 12 is inside the air flow branch channel 14, the other end of the spring 12 is located inside the air flow channel 9, and the ball bead 8 contacts the spring 12.

[0031] In a possible embodiment, it further includes a left ventilation diaphragm 71 and a right ventilation diaphragm 72, the left ventilation diaphragm 71 is arranged inside the left oxygen supply hole 10; the right ventilation diaphragm 72 is arranged inside the right oxygen supply hole 11.

[0032] Specifically, the left ventilation diaphragm 71 and the right ventilation diaphragm 72 are made of polytetrafluoroethylene material, and have multiple characteristics such as resistance to high and low temperatures, corrosion resistance, anti-aging, non-adhesion, waterproof, and non-toxicity. It can not only effectively prevent external pollution sources from polluting the inside of the self-rescuer through the left oxygen supply hole 10 and the right oxygen supply hole 11, but also has a long service life.

[0033] In a possible embodiment, it further includes a first sealing ring 61 and a second sealing ring 62, and both the first sealing ring 61 and the second sealing ring 62 are arranged between the inner wall of the valve body housing 1 and the sealing valve stem 2;

[0034] The first sealing ring 61 is located on one side of the air flow branch channel 14, and the second sealing ring 62 is located on the other side of the air flow branch channel 14; an air flow cavity 15 is formed between the first sealing ring 61 and the second sealing ring 62, and the air flow branch channel 14 conducts the air flow cavity 15.

[0035] Specifically, when the self-rescuer is turned on, it is defaulted to the exercise state. At this time, the oxygen in the self-rescuer passes through the oxygen inlet 13, the air flow channel 9, the air flow branch channel 14 and the air flow cavity 15 to be conducted, and can supply oxygen to the left oxygen supply hole 10 and the right oxygen supply hole 11 at the same time, providing more sufficient oxygen to ensure the oxygen supply during high-intensity work.

[0036] In a possible embodiment, the ball bead 8 is pushed into the left oxygen supply hole 10 by the spring 12 to close the left oxygen supply hole 10.

[0037] Specifically, the spring 12 pushes the ball bead 8 into the left oxygen supply hole 10 to close the left oxygen supply hole 10, which can achieve airtightness and ensure that oxygen cannot pass through the left oxygen supply hole 10.

[0038] In a possible embodiment, the ball bead 8 is pushed into the right oxygen supply hole 11 by the spring 12 to close the right oxygen supply hole 11.

[0039] Specifically, the spring 12 pushes the ball bead 8 into the right oxygen supply hole 10 to close the right oxygen supply hole 10, which can achieve airtightness and ensure that oxygen cannot pass through the right oxygen supply hole 10.

[0040] In a possible embodiment, a torsion ring 16 is connected to the end of the sealing valve rod 2, and the sealing valve rod 2 is rotated through the torsion ring 16 to switch the closed object of the ball bead 8.

[0041] Specifically, the sealing valve rod 2 is rotated through the torsion ring 16 to close the left oxygen supply hole 10 or the right oxygen supply hole 11, realizing single-hole oxygen supply, which can supply oxygen at a slow speed, maximize the amount of oxygen stored in the self-rescuer, and extend the service time of the self-rescuer.

[0042] In a possible embodiment, a limiting rod 4 is further included, and the limiting rod 4 is inserted into the sealing valve rod 2 from the valve body shell 1.

[0043] Specifically, when the sealing valve rod 2 is rotated through the torsion ring 16, the limiting rod 4 is inserted into the sealing valve rod 2 to limit the rotation angle, ensuring that the ball bead 8 can accurately close the left oxygen supply hole 10 or the right oxygen supply hole 11.

[0044] In summary, the present utility model includes a valve body housing 1, a sealing valve stem 2, a left diaphragm fixing cap 31, a right diaphragm fixing cap 32, a fixed tail seat 5, a ball bead 8, an air flow channel 9, a left oxygen supply hole 10, a right oxygen supply hole 11, and a spring 12; one side of the valve body housing 1 is provided with the left diaphragm fixing cap 31, and the left diaphragm fixing cap 31 is provided with the left oxygen supply hole 10; the other side of the valve body housing 1 is provided with the right diaphragm fixing cap 32, and the right diaphragm fixing cap 32 is provided with the right oxygen supply hole 11; one end of the valve body housing 1 is provided with an oxygen inlet 13, and the other end of the valve body housing 1 is connected to the fixed tail seat 5; the sealing valve stem 2 is arranged inside the valve body housing 1, and one end of the sealing valve stem 2 extends out from the fixed tail seat 5; an air flow channel 9 is arranged inside the sealing valve stem 2, and one end of the air flow channel 9 communicates with the oxygen inlet 13; an air flow branch channel 14 is arranged at a position corresponding to the left oxygen supply hole 10 or the right oxygen supply hole 11 in the air flow channel 9; the ball bead 8 is located inside the air flow branch channel 14, one end of the spring 12 is inside the air flow branch channel 14, the other end of the spring 12 is located inside the air flow channel 9, and the ball bead 8 contacts the spring 12. It further includes a left ventilation diaphragm 71 and a right ventilation diaphragm 72, the left ventilation diaphragm 71 is arranged inside the left oxygen supply hole 10; the right ventilation diaphragm 72 is arranged inside the right oxygen supply hole 11. The left ventilation diaphragm 71 and the right ventilation diaphragm 72 are made of polytetrafluoroethylene material, and have multiple characteristics such as resistance to high and low temperatures, corrosion resistance, anti-aging, non-adhesion, waterproof, and non-toxic. It can not only effectively prevent external pollution sources from polluting the inside of the self-rescuer through the left oxygen supply hole 10 and the right oxygen supply hole 11, but also has a long service life. It further includes a first sealing ring 61 and a second sealing ring 62, both the first sealing ring 61 and the second sealing ring 62 are arranged between the inner wall of the valve body housing 1 and the sealing valve stem 2; the first sealing ring 61 is located on one side of the air flow branch channel 14, and the second sealing ring 62 is located on the other side of the air flow branch channel 14; an air flow cavity 15 is formed between the first sealing ring 61 and the second sealing ring 62, and the air flow branch channel 14 conducts the air flow cavity 15. When the self-rescuer is opened, it is defaulted to the movement state. At this time, the oxygen in the self-rescuer is conducted through the oxygen inlet 13, the air flow channel 9, the air flow branch channel 14 and the air flow cavity 15, and can supply oxygen to both the left oxygen supply hole 10 and the right oxygen supply hole 11 at the same time, providing more sufficient oxygen to ensure the oxygen supply during high-intensity work. The ball bead 8 is pushed into the left oxygen supply hole 10 or the right oxygen supply hole 11 by the spring 12 to close the left oxygen supply hole 10 or the right oxygen supply hole 11, achieving airtightness and ensuring that oxygen cannot pass through the left oxygen supply hole 10 or the right oxygen supply hole 11.The sealing valve stem 2 is rotated by the torsion ring 16 to close the left oxygen supply hole 10 or the right oxygen supply hole 11, so as to realize single-hole oxygen supply, enable slow oxygen supply, make the most of the oxygen stored in the self-rescuer, and extend the service time of the self-rescuer. It further includes a limiting rod 4, and the limiting rod 4 is inserted into the sealing valve stem 2 from the valve body housing 1. When the sealing valve stem 2 is rotated by the torsion ring 16, the limiting rod 4 is inserted into the sealing valve stem 2 to limit the rotation angle, ensuring that the ball bead 8 can accurately close the left oxygen supply hole 10 or the right oxygen supply hole 11. The utility model can switch the state according to the use scenario and manually adjust the flow rate of the oxygen supply hole, so that the self-rescuer produces different effects in different environments.

[0045] In the above text, the present utility model has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be understood that based on the technical concept of the present utility model, several conventional adjustments or further innovations can be made to these specific embodiments; but as long as they do not depart from the technical concept of the present utility model, the technical solutions obtained by these conventional adjustments or further innovations also fall within the protection scope of the claims of the present utility model.

Claims

1. An adjustable quantitative oxygen supply valve, characterized in that, It includes a valve body housing (1), a sealing valve stem (2), a left diaphragm fixing cap (31), a right diaphragm fixing cap (32), a fixed tail seat (5), a ball bead (8), an air flow channel (9), a left oxygen supply hole (10), a right oxygen supply hole (11), and a spring (12); On one side of the valve body housing (1), there is the left diaphragm fixing cap (31), and the left diaphragm fixing cap (31) is provided with the left oxygen supply hole (10); on the other side of the valve body housing (1), there is the right diaphragm fixing cap (32), and the right diaphragm fixing cap (32) is provided with the right oxygen supply hole (11); One end of the valve body housing (1) is provided with an oxygen inlet (13), and the other end of the valve body housing (1) is connected to the fixed tail seat (5); The sealing valve stem (2) is arranged inside the valve body housing (1), and one end of the sealing valve stem (2) extends out from the fixed tail seat (5); The air flow channel (9) is arranged inside the sealing valve stem (2), and one end of the air flow channel (9) communicates with the oxygen inlet (13); an air flow branch channel (14) is provided at a position of the air flow channel (9) corresponding to the left oxygen supply hole (10) or the right oxygen supply hole (11); The ball bead (8) is located inside the air flow branch channel (14), one end of the spring (12) is inside the air flow branch channel (14), the other end of the spring (12) is located inside the air flow channel (9), and the ball bead (8) contacts the spring (12).

2. The adjustable quantitative oxygen supply valve according to claim 1, wherein, It further includes a left ventilation diaphragm (71) and a right ventilation diaphragm (72), and the left ventilation diaphragm (71) is arranged inside the left oxygen supply hole (10); the right ventilation diaphragm (72) is arranged inside the right oxygen supply hole (11).

3. The adjustable quantitative oxygen supply valve according to claim 2, characterized in that, It further includes a first sealing ring (61) and a second sealing ring (62), and both the first sealing ring (61) and the second sealing ring (62) are arranged between the inner wall of the valve body housing (1) and the sealing valve stem (2); The first sealing ring (61) is located on one side of the air flow branch channel (14), the second sealing ring (62) is located on the other side of the air flow branch channel (14); an air flow cavity (15) is formed between the first sealing ring (61) and the second sealing ring (62), and the air flow branch channel (14) conducts the air flow cavity (15).

4. The adjustable quantitative oxygen supply valve according to claim 3, characterized in that, The outer diameter of the ball bead (7) is smaller than the inner diameter of the air flow branch channel (14), and the outer diameter of the ball bead (7) is larger than the inner diameter of the left oxygen supply hole (10) or the right oxygen supply hole (11).

5. The adjustable quantitative oxygen supply valve according to claim 1, wherein The ball bead (8) is pushed into the left oxygen supply hole (10) by the spring (12) to close the left oxygen supply hole (10).

6. The adjustable quantitative oxygen supply valve according to claim 5, characterized in that, The ball bead (8) is pushed into the right oxygen supply hole (11) by the spring (12) to close the right oxygen supply hole (11).

7. The adjustable quantitative oxygen supply valve according to claim 5, characterized in that, A torsion ring (16) is connected to the end of the sealing valve stem (2), and the sealing valve stem (2) is rotated through the torsion ring (16) to switch the closed object of the ball bead (8).

8. The adjustable quantitative oxygen supply valve according to claim 7, characterized in that, It further includes a limiting rod (4), and the limiting rod (4) is inserted into the sealing valve stem (2) from the valve body housing (1).

Images